Initialize Tizen 2.3 tizen_2.3 2.3a_release submit/tizen_2.3/20140531.105221 submit/tizen_2.3/20150202.060153 tizen_2.3_release
authorSehong Na <sehong.na@samsung.com>
Sat, 31 May 2014 03:58:23 +0000 (12:58 +0900)
committerSehong Na <sehong.na@samsung.com>
Sat, 31 May 2014 03:58:23 +0000 (12:58 +0900)
258 files changed:
AUTHORS [new file with mode: 0644]
COPYING [new file with mode: 0644]
ChangeLog [new file with mode: 0644]
INSTALL [new file with mode: 0644]
Makefile.am [new file with mode: 0644]
Makefile.in [new file with mode: 0644]
NEWS [new file with mode: 0644]
README [new file with mode: 0644]
THANKS [new file with mode: 0644]
TODO [new file with mode: 0644]
aclocal.m4 [new file with mode: 0644]
config.guess [new file with mode: 0755]
config.h.in [new file with mode: 0644]
config.sub [new file with mode: 0755]
configure [new file with mode: 0755]
configure.in [new file with mode: 0644]
debian/NEWS [new file with mode: 0644]
debian/README.Debian [new file with mode: 0644]
debian/changelog [new file with mode: 0644]
debian/compat [new file with mode: 0644]
debian/control [new file with mode: 0644]
debian/copyright [new file with mode: 0644]
debian/patches/00list [new file with mode: 0644]
debian/patches/Makefile.in.dpatch [new file with mode: 0755]
debian/patches/arm.dynamic_linker.path.dpatch [new file with mode: 0755]
debian/patches/cache.dpatch [new file with mode: 0755]
debian/patches/dso.c.dpatch [new file with mode: 0755]
debian/patches/fsync.dpatch [new file with mode: 0755]
debian/patches/init.dpatch [new file with mode: 0755]
debian/patches/layout.c.dpatch [new file with mode: 0755]
debian/patches/md5sha.dpatch [new file with mode: 0755]
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debian/patches/timestamp.dpatch [new file with mode: 0755]
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debian/patches/ts2.dpatch [new file with mode: 0755]
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debian/prelink.default [new file with mode: 0644]
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install-sh [new file with mode: 0755]
ltconfig [new file with mode: 0755]
ltmain.sh [new file with mode: 0644]
m4/Makefile.am [new file with mode: 0644]
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m4/libelf.m4 [new file with mode: 0644]
missing [new file with mode: 0755]
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packaging/prelink.conf [new file with mode: 0644]
packaging/prelink.spec [new file with mode: 0644]
patches/Makefile.am [new file with mode: 0644]
patches/Makefile.in [new file with mode: 0644]
patches/libelf-0.7.0-hash.patch [new file with mode: 0644]
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src/arch-x86_64.c [new file with mode: 0644]
src/cache.c [new file with mode: 0644]
src/canonicalize.c [new file with mode: 0644]
src/checksum.c [new file with mode: 0644]
src/conflict.c [new file with mode: 0644]
src/crc32.c [new file with mode: 0644]
src/cxx.c [new file with mode: 0644]
src/data.c [new file with mode: 0644]
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src/dwarf2.c [new file with mode: 0644]
src/dwarf2.h [new file with mode: 0644]
src/exec.c [new file with mode: 0644]
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src/execstack.c [new file with mode: 0644]
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src/layout.c [new file with mode: 0644]
src/layout.h [new file with mode: 0644]
src/main.c [new file with mode: 0644]
src/makecrc.c [new file with mode: 0644]
src/md5.c [new file with mode: 0644]
src/md5.h [new file with mode: 0644]
src/mdebug.c [new file with mode: 0644]
src/prelink.c [new file with mode: 0644]
src/prelink.h [new file with mode: 0644]
src/prelinktab.h [new file with mode: 0644]
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src/space.c [new file with mode: 0644]
src/space.h [new file with mode: 0644]
src/stabs.c [new file with mode: 0644]
src/undo.c [new file with mode: 0644]
src/undoall.c [new file with mode: 0644]
src/verify.c [new file with mode: 0644]
stamp-h.in [new file with mode: 0644]
testsuite/Makefile.am [new file with mode: 0644]
testsuite/Makefile.in [new file with mode: 0644]
testsuite/cxx1.C [new file with mode: 0644]
testsuite/cxx1.h [new file with mode: 0644]
testsuite/cxx1.sh [new file with mode: 0755]
testsuite/cxx1lib1.C [new file with mode: 0644]
testsuite/cxx1lib2.C [new file with mode: 0644]
testsuite/cxx2.C [new file with mode: 0644]
testsuite/cxx2.sh [new file with mode: 0755]
testsuite/cycle1.sh [new file with mode: 0755]
testsuite/cycle2.sh [new file with mode: 0755]
testsuite/deps1.c [new file with mode: 0644]
testsuite/deps1.h [new file with mode: 0644]
testsuite/deps1.sh [new file with mode: 0755]
testsuite/deps1lib1.c [new file with mode: 0644]
testsuite/deps1lib2.c [new file with mode: 0644]
testsuite/deps2.sh [new file with mode: 0755]
testsuite/deps2lib1.c [new file with mode: 0644]
testsuite/functions.sh [new file with mode: 0755]
testsuite/ifunc.h [new file with mode: 0644]
testsuite/ifunc1.c [new file with mode: 0644]
testsuite/ifunc1.sh [new file with mode: 0755]
testsuite/ifunc1lib1.c [new file with mode: 0644]
testsuite/ifunc1lib2.c [new file with mode: 0644]
testsuite/ifunc2.sh [new file with mode: 0755]
testsuite/ifunc3.c [new file with mode: 0644]
testsuite/ifunc3.sh [new file with mode: 0755]
testsuite/ifunc3lib1.c [new file with mode: 0644]
testsuite/ifunctest.c [new file with mode: 0644]
testsuite/layout.C [new file with mode: 0644]
testsuite/layout1.sh [new file with mode: 0755]
testsuite/layout2.sh [new file with mode: 0755]
testsuite/layoutlib.C [new file with mode: 0644]
testsuite/movelibs.sh [new file with mode: 0755]
testsuite/quick1.c [new file with mode: 0644]
testsuite/quick1.sh [new file with mode: 0755]
testsuite/quick1lib1.c [new file with mode: 0644]
testsuite/quick1lib2.c [new file with mode: 0644]
testsuite/quick1lib3.c [new file with mode: 0644]
testsuite/quick1lib4.c [new file with mode: 0644]
testsuite/quick2.sh [new file with mode: 0755]
testsuite/quick3.sh [new file with mode: 0755]
testsuite/reloc1.c [new file with mode: 0644]
testsuite/reloc1.h [new file with mode: 0644]
testsuite/reloc1.sh [new file with mode: 0755]
testsuite/reloc10.c [new file with mode: 0644]
testsuite/reloc10.sh [new file with mode: 0755]
testsuite/reloc10lib1.c [new file with mode: 0644]
testsuite/reloc10lib2.c [new file with mode: 0644]
testsuite/reloc10lib3.c [new file with mode: 0644]
testsuite/reloc10lib4.c [new file with mode: 0644]
testsuite/reloc10lib5.c [new file with mode: 0644]
testsuite/reloc11.c [new file with mode: 0644]
testsuite/reloc11.sh [new file with mode: 0755]
testsuite/reloc11lib2.c [new file with mode: 0644]
testsuite/reloc11lib3.c [new file with mode: 0644]
testsuite/reloc1lib1.c [new file with mode: 0644]
testsuite/reloc1lib2.c [new file with mode: 0644]
testsuite/reloc2.c [new file with mode: 0644]
testsuite/reloc2.sh [new file with mode: 0755]
testsuite/reloc2lib1.c [new file with mode: 0644]
testsuite/reloc2lib2.c [new file with mode: 0644]
testsuite/reloc3.c [new file with mode: 0644]
testsuite/reloc3.sh [new file with mode: 0755]
testsuite/reloc3lib1.c [new file with mode: 0644]
testsuite/reloc4.c [new file with mode: 0644]
testsuite/reloc4.sh [new file with mode: 0755]
testsuite/reloc4lib1.c [new file with mode: 0644]
testsuite/reloc4lib2.c [new file with mode: 0644]
testsuite/reloc4lib3.c [new file with mode: 0644]
testsuite/reloc5.c [new file with mode: 0644]
testsuite/reloc5.sh [new file with mode: 0755]
testsuite/reloc6.sh [new file with mode: 0755]
testsuite/reloc7.c [new file with mode: 0644]
testsuite/reloc7.sh [new file with mode: 0755]
testsuite/reloc8.sh [new file with mode: 0755]
testsuite/reloc9.sh [new file with mode: 0755]
testsuite/shuffle1.sh [new file with mode: 0755]
testsuite/shuffle2.c [new file with mode: 0644]
testsuite/shuffle2.sh [new file with mode: 0755]
testsuite/shuffle3.sh [new file with mode: 0755]
testsuite/shuffle4.sh [new file with mode: 0755]
testsuite/shuffle5.sh [new file with mode: 0755]
testsuite/shuffle6.sh [new file with mode: 0755]
testsuite/shuffle6lib1.c [new file with mode: 0644]
testsuite/shuffle6lib2.c [new file with mode: 0644]
testsuite/shuffle7.sh [new file with mode: 0755]
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testsuite/shuffle8.sh [new file with mode: 0755]
testsuite/shuffle9.c [new file with mode: 0644]
testsuite/shuffle9.sh [new file with mode: 0755]
testsuite/tls1.c [new file with mode: 0644]
testsuite/tls1.h [new file with mode: 0644]
testsuite/tls1.sh [new file with mode: 0755]
testsuite/tls1lib1.c [new file with mode: 0644]
testsuite/tls1lib2.c [new file with mode: 0644]
testsuite/tls2.c [new file with mode: 0644]
testsuite/tls2.sh [new file with mode: 0755]
testsuite/tls2lib1.c [new file with mode: 0644]
testsuite/tls3.sh [new file with mode: 0755]
testsuite/tls3lib2.c [new file with mode: 0644]
testsuite/tls4.c [new file with mode: 0644]
testsuite/tls4.sh [new file with mode: 0755]
testsuite/tls4lib1.c [new file with mode: 0644]
testsuite/tls4lib2.c [new file with mode: 0644]
testsuite/tls5.sh [new file with mode: 0755]
testsuite/tls5lib1.c [new file with mode: 0644]
testsuite/tls6.sh [new file with mode: 0755]
testsuite/tls6lib1.c [new file with mode: 0644]
testsuite/tls7.c [new file with mode: 0644]
testsuite/tls7.sh [new file with mode: 0755]
testsuite/undo1.sh [new file with mode: 0755]
testsuite/undosyslibs.sh [new file with mode: 0755]

diff --git a/AUTHORS b/AUTHORS
new file mode 100644 (file)
index 0000000..96a4141
--- /dev/null
+++ b/AUTHORS
@@ -0,0 +1,2 @@
+For Now:
+Jakub Jelinek.
diff --git a/COPYING b/COPYING
new file mode 100644 (file)
index 0000000..eeb586b
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,340 @@
+                   GNU GENERAL PUBLIC LICENSE
+                      Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+     59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                           Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
+source code.  And you must show them these terms so they know their
+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+\f
+                   GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language.  (Hereinafter, translation is included without limitation in
+the term "modification".)  Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+    a) You must cause the modified files to carry prominent notices
+    stating that you changed the files and the date of any change.
+
+    b) You must cause any work that you distribute or publish, that in
+    whole or in part contains or is derived from the Program or any
+    part thereof, to be licensed as a whole at no charge to all third
+    parties under the terms of this License.
+
+    c) If the modified program normally reads commands interactively
+    when run, you must cause it, when started running for such
+    interactive use in the most ordinary way, to print or display an
+    announcement including an appropriate copyright notice and a
+    notice that there is no warranty (or else, saying that you provide
+    a warranty) and that users may redistribute the program under
+    these conditions, and telling the user how to view a copy of this
+    License.  (Exception: if the Program itself is interactive but
+    does not normally print such an announcement, your work based on
+    the Program is not required to print an announcement.)
+\f
+These requirements apply to the modified work as a whole.  If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works.  But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+  3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+    a) Accompany it with the complete corresponding machine-readable
+    source code, which must be distributed under the terms of Sections
+    1 and 2 above on a medium customarily used for software interchange; or,
+
+    b) Accompany it with a written offer, valid for at least three
+    years, to give any third party, for a charge no more than your
+    cost of physically performing source distribution, a complete
+    machine-readable copy of the corresponding source code, to be
+    distributed under the terms of Sections 1 and 2 above on a medium
+    customarily used for software interchange; or,
+
+    c) Accompany it with the information you received as to the offer
+    to distribute corresponding source code.  (This alternative is
+    allowed only for noncommercial distribution and only if you
+    received the program in object code or executable form with such
+    an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it.  For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable.  However, as a
+special exception, the source code distributed need not include
+anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+
+If distribution of executable or object code is made by offering
+access to copy from a designated place, then offering equivalent
+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+\f
+  4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License.  Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+  5. You are not required to accept this License, since you have not
+signed it.  However, nothing else grants you permission to modify or
+distribute the Program or its derivative works.  These actions are
+prohibited by law if you do not accept this License.  Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+  6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions.  You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+  7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all.  For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices.  Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+\f
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded.  In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+  9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission.  For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this.  Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+                           NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+                    END OF TERMS AND CONDITIONS
+\f
+           How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) 19yy  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) 19yy name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Library General
+Public License instead of this License.
diff --git a/ChangeLog b/ChangeLog
new file mode 100644 (file)
index 0000000..cf7a444
--- /dev/null
+++ b/ChangeLog
@@ -0,0 +1,452 @@
+2010-01-06  Jakub Jelinek  <jakub@redhat.com>
+
+       * src/arch-s390.c (s390_prelink_conflict_rela) <case R_390_PC32DBL>:
+       Ensure negative addends are sign-extended to 64-bits, instead of
+       zero-extended.
+
+2010-01-05  Jakub Jelinek  <jakub@redhat.com>
+
+       * src/arch-s390.c (s390_prelink_rela, s390_apply_rela,
+       s390_prelink_conflict_rela, s390_prelink_conflict_rela,
+       s390_undo_prelink_rela, s390_reloc_size): Handle
+       R_390_{PC32DBL,16,PC16,PC16DBL,8} relocs.
+
+2009-12-16  Jakub Jelinek  <jakub@redhat.com>
+
+       * testsuite/reloc2.sh: Don't assume textrel works if getenforce
+       exists, but doesn't print Permissive or Disabled.
+       * testsuite/reloc8.sh: Likewise.
+       * testsuite/reloc9.sh: Likewise.
+       * testsuite/tls3.sh: Likewise.
+
+2009-11-03  Jakub Jelinek  <jakub@redhat.com>
+
+       * src/arch-x86_64.c (x86_64_reloc_size): Handle R_X86_64_IRELATIVE.
+
+       * src/prelink.h (R_PPC_IRELATIVE, R_PPC64_IRELATIVE,
+       R_PPC64_JMP_IREL): Define if not defined.
+       * src/undo.c (undo_sections, prelink_undo): Allow .iplt section to
+       change from SHT_NOBITS to SHT_PROGBITS.
+       * src/arch-ppc.c (ppc_adjust_rela, ppc_prelink_rela,
+       ppc_apply_conflict_rela, ppc_undo_prelink_rela): Handle
+       R_PPC_IRELATIVE.
+       (ppc_prelink_conflict_rela): Handle R_PPC_IRELATIVE and
+       conflict->ifunc conflicts.
+       * src/arch-ppc64.c (ppc64_adjust_rela, ppc64_prelink_rela,
+       ppc64_undo_prelink_rela): Handle R_PPC64_IRELATIVE and
+       R_PPC64_JMP_IREL.
+       (ppc64_apply_conflict_rela, ppc64_reloc_size): Handle
+       R_PPC64_IRELATIVE.
+       (ppc64_prelink_conflict_rela): Handle R_PPC64_IRELATIVE,
+       R_PPC64_JMP_IREL and conflict->ifunc conflicts.
+       * testsuite/ifunc.h (IFUNC_ASM): Add powerpc definition.
+       (IFUNC_DECL): Define.
+       (IFUNC): Use IFUNC_DECL.
+
+2009-10-19  Joseph Myers  <joseph@codesourcery.com>
+
+       * src/conflict.c (prelink_build_conflicts): Use >= not > to
+       determine whether a relocation points outside the first bss
+       section.
+
+       * m4/libelf.m4: Resync with version of code in aclocal.m4.
+
+2009-09-25  Jakub Jelinek  <jakub@redhat.com>
+
+       * src/dwarf2.c (adjust_location_list) <case DW_OP_implicit_value>: Add
+       missing break statement.
+
+2009-08-06  Joseph Myers  <joseph@codesourcery.com>
+
+       * src/dwarf2.c (dwarf2_write_le64, dwarf2_write_be64): Shift by 56
+       not 58 for MSB.
+
+2009-07-09  Jakub Jelinek  <jakub@redhat.com>
+
+       * src/conflict.c (prelink_build_conflicts): Don't call
+       prelink_conflict_rel{,a} on .gnu.conflict section in executables.
+
+2009-06-15  Jakub Jelinek  <jakub@redhat.com>
+
+       * src/prelink.h (R_386_IRELATIVE, R_X86_64_IRELATIVE): Define
+       if not defined.
+       (struct PLArch): Add dest_addr argument to apply_conflict_rela
+       hook.
+       (struct prelink_conflict): Change used type from int to unsigned
+       char, add ifunc field.
+       (get_relocated_mem): Add dest_addr argument.
+       * src/get.c (prelink_record_relocations): Handle lookups resolving
+       to STT_GNU_IFUNC symbols.
+       * src/conflict.c (get_relocated_mem): Add dest_addr argument, pass
+       it through to the apply_conflict_rela hook.  Fail if
+       apply_conflict_rela hook failed.
+       (prelink_build_conflicts): Build conflicts even in the executable,
+       and for libraries even if no conflicts were reported by the dynamic
+       linker.  In the executable ignore any unused conflicts except for
+       ifunc conflicts.  Adjust get_relocated_mem callers.
+       * src/cxx.c (remove_redundant_cxx_conflicts): Adjust
+       get_relocated_mem callers.
+       * arch-alpha.c (alpha_apply_conflict_rela): Add dest_addr argument.
+       (alpha_prelink_conflict_rela): Return early if info->dso == dso.
+       * arch-arm.c (arm_apply_conflict_rela): Add dest_addr argument.
+       (arm_prelink_conflict_rel, arm_prelink_conflict_rela): Return early
+       if info->dso == dso.
+       * arch-cris.c (cris_apply_conflict_rela): Add dest_addr argument.
+       (cris_prelink_conflict_rela): Return early if info->dso == dso.
+       * arch-ia64.c (ia64_apply_conflict_rela): Add dest_addr argument.
+       (ia64_prelink_conflict_rela): Return early if info->dso == dso.
+       * arch-ppc.c (ppc_apply_conflict_rela): Add dest_addr argument.
+       (ppc_prelink_conflict_rela): Return early if info->dso == dso.
+       * arch-ppc64.c (ppc64_apply_conflict_rela): Add dest_addr argument.
+       (ppc64_prelink_conflict_rela): Return early if info->dso == dso.
+       * arch-s390.c (s390_apply_conflict_rela): Add dest_addr argument.
+       (s390_prelink_conflict_rela): Return early if info->dso == dso.
+       * arch-s390x.c (s390x_apply_conflict_rela): Add dest_addr argument.
+       (s390x_prelink_conflict_rela): Return early if info->dso == dso.
+       * arch-sh.c (sh_apply_conflict_rela): Add dest_addr argument.
+       (sh_prelink_conflict_rela): Return early if info->dso == dso.
+       * arch-sparc.c (sparc_apply_conflict_rela): Add dest_addr argument.
+       (sparc_prelink_conflict_rela): Return early if info->dso == dso.
+       * arch-sparc64.c (sparc64_apply_conflict_rela): Add dest_addr argument.
+       (sparc64_prelink_conflict_rela): Return early if info->dso == dso.
+       * arch-mips.c (mipz_apply_conflict_rela): Add dest_addr argument.
+       (mips_prelink_conflict_reloc, mips_arch_prelink_conflict): Return
+       early if info->dso == dso.
+       * arch-i386.c (i386_adjust_rel, i386_adjust_rela, i386_prelink_rel,
+       i386_prelink_rela, i386_rel_to_rela, i386_undo_prelink_rel,
+       i386_rela_to_rel): Handle R_386_IRELATIVE.
+       (i386_apply_conflict_rela): Add dest_addr argument, handle
+       R_386_IRELATIVE.
+       (i386_prelink_conflict_rel, i386_prelink_conflict_rela): Handle
+       R_386_IRELATIVE and conflict->ifunc conflicts.
+       * arch-x86_64.c (x86_64_adjust_rela, x86_64_prelink_rela,
+       x86_64_undo_prelink_rela): Handle R_X86_64_IRELATIVE.
+       (x86_64_apply_conflict_rela): Handle R_X86_64_IRELATIVE and
+       conflict->ifunc conflicts.
+       * testsuite/Makefile.am (TESTS): Add ifunc1.sh, ifunc2.sh and
+       ifunc3.sh.
+       * testsuite/Makefile.in: Regenerated.
+       * testsuite/ifunc1.sh: New test.
+       * testsuite/ifunc2.sh: New test.
+       * testsuite/ifunc3.sh: New test.
+       * testsuite/ifunc1.c: New file.
+       * testsuite/ifunc1lib1.c: New file.
+       * testsuite/ifunc1lib2.c: New file.
+       * testsuite/ifunc3.c: New file.
+       * testsuite/ifunc3lib1.c: New file.
+       * testsuite/ifunc.h: New file.
+       * testsuite/ifunctest.c: New file.
+
+       * src/Makefile.am (DEFS, AM_CFLAGS): Add -Wno-pointer-sign.
+       * src/Makefile.in: Regenerated.
+       * src/data.c (reopen_dso): Initialize data variable to avoid
+       warnings.
+
+       * src/dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): Define.
+       (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece,
+       DW_OP_implicit_value, DW_OP_stack_value, DW_OP_GNU_uninit,
+       DW_OP_GNU_encoded_addr): Define.
+       (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
+       DW_ATE_signed_fixed, DW_ATE_unsigned_fixed, DW_ATE_decimal_float):
+       Define.
+       (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression):
+       Define.
+       (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
+       DW_LANG_D): Define.
+       * src/dwarf2.c (debug_sections): Add .debug_pubtypes.
+       (DEBUG_PUBTYPES): Define.
+       (DEBUG_MACINFO, DEBUG_LOC, DEBUG_STR, DEBUG_FRAME, DEBUG_RANGES):
+       Adjust.
+       (struct cu_data): Add cu_version field.
+       (read_abbrev): Adjust error messages not to be DWARF-2 specific.
+       (adjust_location_list): Likewise.  Fix up DW_OP_call_ref handling,
+       handle DW_OP_form_tls_address, DW_OP_call_frame_cfa,
+       DW_OP_GNU_uninit, DW_OP_bit_piece, DW_OP_stack_value and
+       DW_OP_implicit_value.
+       (adjust_attributes): For cu->cu_version == 2 skip ptr_size bytes
+       instead of just 4.  Adjust error messages not to be DWARF-2
+       specific.
+       (adjust_dwarf2_line): Handle version 3 of .debug_line.
+       (adjust_dwarf2_frame): Just that CIE version is 1 or 3, for
+       version 1 skip just one byte instead of uleb128 for return address
+       column.  Handle DW_CFA_val_offset, DW_CFA_val_offset_sf and
+       DW_CFA_val_expression.
+       (adjust_dwarf2): Handle version 3 of .debug_info, initialize
+       cu.cu_version.  Adjust error messages not to be DWARF-2 specific.
+       Note that .debug_pubtypes doesn't need adjustments.
+
+2009-03-11  Jakub Jelinek  <jakub@redhat.com>
+
+       * src/prelink.h (PLArch): Add rtype_class_valid field.
+       * src/get.c (prelink_record_relocations): If not /4, or
+       dso->arch->rtype_class_valid instead of RTYPE_CLASS_VALID
+       into reloc_class.
+       * src/cxx.c (remove_redundant_cxx_conflicts): Use
+       info->dso->arch->rtype_class_valid instead of RTYPE_CLASS_VALID.
+       * src/arch-ppc64.c (ppc64_reloc_class): For R_PPC64_COPY return
+       RTYPE_CLASS_COPY | RTYPE_CLASS_PLT, for non-TLS relocs return
+       RTYPE_CLASS_PLT.
+       (PL_ARCH): Set rtype_class_valid to RTYPE_CLASS_PLT.
+       * src/arch-alpha.c (PL_ARCH): Set rtype_class_valid to
+       RTYPE_CLASS_VALID.
+       * src/arch-arm.c (PL_ARCH): Likewise.
+       * src/arch-cris.c (PL_ARCH): Likewise.
+       * src/arch-i386.c (PL_ARCH): Likewise.
+       * src/arch-ia64.c (PL_ARCH): Likewise.
+       * src/arch-mips.c (PL_ARCH): Likewise.
+       * src/arch-ppc.c (PL_ARCH): Likewise.
+       * src/arch-s390.c (PL_ARCH): Likewise.
+       * src/arch-s390x.c (PL_ARCH): Likewise.
+       * src/arch-sh.c (PL_ARCH): Likewise.
+       * src/arch-sparc.c (PL_ARCH): Likewise.
+       * src/arch-sparc64.c (PL_ARCH): Likewise.
+       * src/arch-x86_64.c (PL_ARCH): Likewise.
+
+2009-03-04  Joseph Myers  <joseph@codesourcery.com>
+
+       * testsuite/reloc2.sh, testsuite/tls3.sh: Add ARM to architectures
+       requiring PIC shared libraries.
+
+2009-03-04  Daniel Jacobowitz  <dan@codesourcery.com>
+            Joseph Myers  <joseph@codesourcery.com>
+
+       * src/arch-arm.c (arm_prelink_rel, arm_prelink_rela,
+       arm_prelink_conflict_rel, arm_prelink_conflict_rela, arm_rel_to_rela,
+       arm_rela_to_rel, arm_need_rel_to_rela, arm_undo_prelink_rel,
+       arm_reloc_class): Handle TLS relocations.
+       * src/prelink.h (R_ARM_TLS_DTPMOD32, R_ARM_TLS_DTPOFF32,
+       R_ARM_TLS_TPOFF32): Define if R_ARM_TLS_DTPMOD32 not already
+       defined.
+
+2009-03-04  Daniel Jacobowitz  <dan@codesourcery.com>
+
+       * src/arch-arm.c (arm_adjust_dyn, arm_adjust_rel, arm_adjust_rela,
+       arm_prelink_rel, arm_prelink_rela, arm_apply_conflict_rela,
+       arm_apply_rel, arm_apply_rela, arm_prelink_conflict_rela,
+       arm_rel_to_rela, arm_rela_to_rel, arm_need_rel_to_rela,
+       arm_arch_prelink, arm_arch_undo_prelink, arm_undo_prelink_rel):
+       Use endian-neutral functions.
+
+2008-09-29 Joseph Myers  <joseph@codesourcery.com>
+
+       * src/arch-sparc64.c (sparc64_prelink_rela,
+       sparc64_prelink_conflict_rela, sparc64_undo_prelink_rela,
+       sparc64_reloc_class): Handle TLS relocations.
+       (PL_ARCH): Update mmap_base and mmap_end for TASK_UNMAPPED_BASE
+       change to 0xfffff80100000000.
+
+2007-12-04  Daniel Jacobowitz  <dan@codesourcery.com>
+
+       * src/gather.c (gather_object): Print an error if nftw64 fails.
+
+2007-10-09  Jakub Jelinek  <jakub@redhat.com>
+
+       * src/cxx.c (remove_redundant_cxx_conflicts): Allow .sdata
+       section as well.
+
+       * src/prelink.h (struct prelink_conflict): Add next2 field.
+       (struct prelink_conflicts): Add hash2 field.
+       * src/get.c (prelink_record_relocations): Clear next2 fields.
+       * src/prelink.c (free_info): Also free hash2 table.
+       * src/cxx.c (remove_redundant_cxx_conflicts): Populate hash2
+       if not populated yet, use it to speed up pltref checking.
+
+       * src/prelink.h (struct prelink_conflicts): New type.
+       (struct prelink_info): Change type of conflicts and curconflicts
+       fields to struct prelink_conflicts *.
+       * src/get.c (conflict_hash_init): New function.
+       (prelink_record_relocations): Adjust initialization of conflicts
+       array.  If conflict linked lists has more than 15 entries, use
+       hash table with chains.
+       * src/prelink.c (free_info): Handle freeing conflict list using a hash
+       table.
+       * src/fptr.c (opd_init): Only walk corresponding hash chain if
+       conflict list is using a hash table.
+       * src/conflict.c (prelink_conflict): Likewise.
+       (prelink_build_conflicts): Handle conflict list using a hash table.
+       * src/cxx.c (remove_redundant_cxx_conflicts): Likewise.  Only walk
+       corresponding hash chain if conflict list is using a hash table.
+
+       * src/doit.c (find_ents): Clear e->u.tmp.
+       (clear_ent_marks, find_unlisted_dependency): Remove.
+       (prelink_ent): More efficient non-recursive check for
+       unlisted dependencies.
+
+       * src/cxx.c (find_cxx_sym): If fcs->lastndx != -1, search first
+       among symbols around it.
+
+2007-10-08  Jakub Jelinek  <jakub@redhat.com>
+
+       * src/space.c (find_readonly_space): Disallow section insertion in
+       between adjacent SHT_NOTE sections.  When creating new PT_LOAD,
+       handle multiple consecutive SHT_NOTE sections with just one PT_NOTE
+       segment for them.
+       * testsuite/Makefile.am (TESTS): Add shuffle9.sh.
+       * testsuite/Makefile.in: Regenerated.
+       * testsuite/shuffle9.sh: New test.
+       * testsuite/shuffle9.c: New.
+
+       * testsuite/shuffle2.c: Add .previous at the end of __asm.
+       * testsuite/reloc5.c (main): Likewise.
+
+       * testsuite/tls3.sh: If libs aren't built with -fpic,
+       disable the test under SELinux in enforcing mode.
+
+       * src/cxx.c: Include alloca.h.
+       (specials): Moved out of remove_redundant_cxx_conflicts to toplevel.
+       Remove section fields.
+       (find_cxx_sym_valsize, find_cxx_sym_cache): New structs.
+       (struct find_cxx_sym): Add cache and lastndx fields.
+       (cachecmp, create_cache): New functions.
+       (find_cxx_sym): Add cache argument.  If cache[n] is NULL, call
+       create_cache.  Do a binary search in cache[n]->vals array instead
+       of always reading the whole symbol table.
+       (remove_redundant_cxx_conflicts): Adjust find_cxx_sym caller.
+       Check if secname is ".data" or ".data.rel.ro" instead of comparing
+       it against specials[k].secname.  Use binary search in binsymcache
+       when doing check_pltref checks.
+       * testsuite/Makefile.am (TESTS): Add cxx2.sh.
+       * testsuite/Makefile.in: Regenerated.
+       * testsuite/cxx1.sh: Check that some conflicts are optimized out
+       by C++ optimizations.
+       * testsuite/cxx2.sh: New test.
+       * testsuite/cxx2.C: New.
+
+2007-10-04  Jakub Jelinek  <jakub@redhat.com>
+
+       * src/prelink.h (read_config): New prototype.
+       (gather_config, blacklist_from_config): Remove argument.
+       * src/gather.c (struct config_line): New type.
+       (config_lines, config_end): New variables.
+       (read_config): New function.
+       (gather_config, blacklist_from_config): Walk config_lines
+       chain instead of reading the config file.
+       * src/verify.c (prelink_verify): Call read_config.  Don't
+       pass any argument to gather_config.
+       * src/main.c (main): Likewise.  Also for blacklist_from_config.
+       * testsuite/quick2.sh: Use new -c etc/prelink.conf.d/*.conf
+       feature in prelink.conf and multiple config snippets.
+
+2007-06-27  Jakub Jelinek  <jakub@redhat.com>
+
+       * testsuite/reloc2.sh: If libs aren't built with -fpic,
+       disable the test under SELinux in enforcing mode.
+
+2007-03-02  Sandra Loosemore  <sandra@codesourcery.com>
+
+       * doc/prelink.8: Spelling and grammar fixes.
+
+2006-12-01  Jakub Jelinek  <jakub@redhat.com>
+
+       * src/verify.c (prelink_verify): Unlink ent->filename in case of
+       failures between closing the unprelinked dso and unlinking
+       ent->filename.
+
+2006-10-27  Jakub Jelinek  <jakub@redhat.com>
+
+       * src/prelink.h (READWRITEPROTOSIZE): Undef after use.
+
+2006-10-24  Richard Sandiford  <richard@codesourcery.com>
+
+       * testsuite/tls3.sh: Use -fpic for MIPS too.
+       * testsuite/reloc2.sh: Likewise.
+
+       * testsuite/reloc4.sh: Use -mxgot when compiling for MIPS targets.
+       * testsuite/reloc5.c (main): Make the printed inline asm globalize
+       testzero.
+
+       * testsuite/shuffle2.c (testzero): Globalize asm definition.
+
+       * src/Makefile.am (arch_SOURCES): Add arch-mips.c
+       * src/Makefile.in: Regenerate.
+       * src/arch-mips.c: New file.
+
+       * src/prelink.h (DT_MIPS_RLD_VERSION): Define.
+       (DT_MIPS_TIME_STAMP): Likewise.
+       (DT_MIPS_ICHECKSUM): Likewise.
+       (DT_MIPS_IVERSION): Likewise.
+       (DT_MIPS_FLAGS): Likewise.
+       (DT_MIPS_BASE_ADDRESS): Likewise.
+       (DT_MIPS_CONFLICT): Likewise.
+       (DT_MIPS_LIBLIST): Likewise.
+       (DT_MIPS_LOCAL_GOTNO): Likewise.
+       (DT_MIPS_CONFLICTNO): Likewise.
+       (DT_MIPS_LIBLISTNO): Likewise.
+       (DT_MIPS_SYMTABNO): Likewise.
+       (DT_MIPS_UNREFEXTNO): Likewise.
+       (DT_MIPS_GOTSYM): Likewise.
+       (DT_MIPS_HIPAGENO): Likewise.
+       (DT_MIPS_RLD_MAP): Likewise.
+       (R_MIPS_TLS_DTPMOD): Likewise.
+       (R_MIPS_TLS_DTPREL): Likewise.
+       (R_MIPS_TLS_TPREL): Likewise.
+       (R_MIPS_GLOB_DAT): Likewise.
+       (DSO): Add info_DT_MIPS_LOCAL_GOTNO, info_DT_MIPS_GOTSYM,
+       and info_DT_MIPS_SYMTABNO.
+
+       * src/dso.c (read_dynamic): Initialize the new DSO fields.
+       (adjust_symbol_p): Handle stub values on MIPS.
+       * src/prelink.c (prelink_prepare): Handle SHT_DYNAMIC and
+       SHT_MIPS_REGINFO on MIPS.
+       * src/space.c (find_readonly_space): Don't place the new section
+       in the PT_PHDR segment.
+
+       * src/prelink.h (data_iterator): New structure.
+       (init_data_iterator): Declare.
+       (get_data_from_iterator): Likewise.
+       (get_sym_from_iterator): Likewise.
+       * src/data.c (init_data_iterator): New function.
+       (get_data_from_iterator): Likewise.
+       (get_sym_from_iterator): Likewise.
+
+       * src/prelink.h (READWRITEPROTOSIZE): New macro.  Instantiate
+       READWRITEPROTO for big and little endian.  Add prototypes for
+       native-endian functions (buf_read_uneNN, read_uneNN, buf_write_neNN
+       and write_neNN).  Replace uses of READWRITEPROTO with uses of
+       this macro.
+       * src/data.c (BUFREADUNE, READUNE, WRITENE, BUFWRITENE): New macros.
+       (READWRITESIZE): New macro.  Instantiate READWRITE for big and
+       little endian.  Instantiate BUFREADUNE, READUNE, WRITENE
+       and BUFWRITENE.  Replace uses of READWRITE with uses of this macro.
+       * src/arch-sh.c (read_une32, write_ne32, buf_write_ne32): Delete.
+
+       * src/prelink.h (PLArch): Add an arch_prelink_conflict callback.
+       * src/conflict.c (prelink_build_conflicts): If defined, call it
+       for each dependency.
+
+       * src/prelink.h (PLArch): Make the arch_prelink callback take
+       a "struct prelink_info *" argument, not a "DSO *" argument.
+       * src/prelink.c (prelink): Adjust call accordingly.
+       * src/arch-alpha.c (alpha_arch_prelink): Adjust definition accordingly.
+       * src/arch-arm.c (arm_arch_prelink): Likewise.
+       * src/arch-cris.c (cris_arch_prelink): Likewise.
+       * src/arch-i386.c (i386_arch_prelink): Likewise.
+       * src/arch-ia64.c (ia64_arch_prelink): Likewise.
+       * src/arch-ppc.c (ppc_arch_prelink): Likewise.
+       * src/arch-s390.c (s390_arch_prelink): Likewise
+       * src/arch-s390x.c (s390x_arch_prelink): Likewise
+       * src/arch-sh.c (sh_arch_prelink): Likewise.
+       * src/arch-sparc64.c (sparc64_arch_prelink): Likewise.
+       * src/arch-sparc.c (sparc_arch_prelink): Likewise
+       * src/arch-x86_64.c (x86_64_arch_prelink): Likewise.
+
+       * src/prelink.h (PLArch): Add an arch_adjust callback.
+       * src/dso.c (adjust_dso): Use it, if defined.
+
+       * src/prelink.h (adjust_symbol_p): Declare.
+       * src/dso.c (adjust_symbol_p): New function, extracted from...
+       (adjust_symtab): ...here.
+
+2006-10-27  Jakub Jelinek  <jakub@redhat.com>
+
+       * src/dwarf2.c (adjust_dwarf2_ranges): Fix adjusting if end of range
+       is at the end of some section and there is padding before the
+       following one.
+
+2006-07-28  Alexandre Oliva  <aoliva@redhat.com>
+
+       * src/cache.c (deps_cmp): Avoid segfault if both a and b are NULL.
+
+2001-05-24  Jakub Jelinek  <jakub@redhat.com>
+
+       * The beginning.
diff --git a/INSTALL b/INSTALL
new file mode 100644 (file)
index 0000000..b42a17a
--- /dev/null
+++ b/INSTALL
@@ -0,0 +1,182 @@
+Basic Installation
+==================
+
+   These are generic installation instructions.
+
+   The `configure' shell script attempts to guess correct values for
+various system-dependent variables used during compilation.  It uses
+those values to create a `Makefile' in each directory of the package.
+It may also create one or more `.h' files containing system-dependent
+definitions.  Finally, it creates a shell script `config.status' that
+you can run in the future to recreate the current configuration, a file
+`config.cache' that saves the results of its tests to speed up
+reconfiguring, and a file `config.log' containing compiler output
+(useful mainly for debugging `configure').
+
+   If you need to do unusual things to compile the package, please try
+to figure out how `configure' could check whether to do them, and mail
+diffs or instructions to the address given in the `README' so they can
+be considered for the next release.  If at some point `config.cache'
+contains results you don't want to keep, you may remove or edit it.
+
+   The file `configure.in' is used to create `configure' by a program
+called `autoconf'.  You only need `configure.in' if you want to change
+it or regenerate `configure' using a newer version of `autoconf'.
+
+The simplest way to compile this package is:
+
+  1. `cd' to the directory containing the package's source code and type
+     `./configure' to configure the package for your system.  If you're
+     using `csh' on an old version of System V, you might need to type
+     `sh ./configure' instead to prevent `csh' from trying to execute
+     `configure' itself.
+
+     Running `configure' takes awhile.  While running, it prints some
+     messages telling which features it is checking for.
+
+  2. Type `make' to compile the package.
+
+  3. Optionally, type `make check' to run any self-tests that come with
+     the package.
+
+  4. Type `make install' to install the programs and any data files and
+     documentation.
+
+  5. You can remove the program binaries and object files from the
+     source code directory by typing `make clean'.  To also remove the
+     files that `configure' created (so you can compile the package for
+     a different kind of computer), type `make distclean'.  There is
+     also a `make maintainer-clean' target, but that is intended mainly
+     for the package's developers.  If you use it, you may have to get
+     all sorts of other programs in order to regenerate files that came
+     with the distribution.
+
+Compilers and Options
+=====================
+
+   Some systems require unusual options for compilation or linking that
+the `configure' script does not know about.  You can give `configure'
+initial values for variables by setting them in the environment.  Using
+a Bourne-compatible shell, you can do that on the command line like
+this:
+     CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure
+
+Or on systems that have the `env' program, you can do it like this:
+     env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure
+
+Compiling For Multiple Architectures
+====================================
+
+   You can compile the package for more than one kind of computer at the
+same time, by placing the object files for each architecture in their
+own directory.  To do this, you must use a version of `make' that
+supports the `VPATH' variable, such as GNU `make'.  `cd' to the
+directory where you want the object files and executables to go and run
+the `configure' script.  `configure' automatically checks for the
+source code in the directory that `configure' is in and in `..'.
+
+   If you have to use a `make' that does not supports the `VPATH'
+variable, you have to compile the package for one architecture at a time
+in the source code directory.  After you have installed the package for
+one architecture, use `make distclean' before reconfiguring for another
+architecture.
+
+Installation Names
+==================
+
+   By default, `make install' will install the package's files in
+`/usr/local/bin', `/usr/local/man', etc.  You can specify an
+installation prefix other than `/usr/local' by giving `configure' the
+option `--prefix=PATH'.
+
+   You can specify separate installation prefixes for
+architecture-specific files and architecture-independent files.  If you
+give `configure' the option `--exec-prefix=PATH', the package will use
+PATH as the prefix for installing programs and libraries.
+Documentation and other data files will still use the regular prefix.
+
+   In addition, if you use an unusual directory layout you can give
+options like `--bindir=PATH' to specify different values for particular
+kinds of files.  Run `configure --help' for a list of the directories
+you can set and what kinds of files go in them.
+
+   If the package supports it, you can cause programs to be installed
+with an extra prefix or suffix on their names by giving `configure' the
+option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
+
+Optional Features
+=================
+
+   Some packages pay attention to `--enable-FEATURE' options to
+`configure', where FEATURE indicates an optional part of the package.
+They may also pay attention to `--with-PACKAGE' options, where PACKAGE
+is something like `gnu-as' or `x' (for the X Window System).  The
+`README' should mention any `--enable-' and `--with-' options that the
+package recognizes.
+
+   For packages that use the X Window System, `configure' can usually
+find the X include and library files automatically, but if it doesn't,
+you can use the `configure' options `--x-includes=DIR' and
+`--x-libraries=DIR' to specify their locations.
+
+Specifying the System Type
+==========================
+
+   There may be some features `configure' can not figure out
+automatically, but needs to determine by the type of host the package
+will run on.  Usually `configure' can figure that out, but if it prints
+a message saying it can not guess the host type, give it the
+`--host=TYPE' option.  TYPE can either be a short name for the system
+type, such as `sun4', or a canonical name with three fields:
+     CPU-COMPANY-SYSTEM
+
+See the file `config.sub' for the possible values of each field.  If
+`config.sub' isn't included in this package, then this package doesn't
+need to know the host type.
+
+   If you are building compiler tools for cross-compiling, you can also
+use the `--target=TYPE' option to select the type of system they will
+produce code for and the `--build=TYPE' option to select the type of
+system on which you are compiling the package.
+
+Sharing Defaults
+================
+
+   If you want to set default values for `configure' scripts to share,
+you can create a site shell script called `config.site' that gives
+default values for variables like `CC', `cache_file', and `prefix'.
+`configure' looks for `PREFIX/share/config.site' if it exists, then
+`PREFIX/etc/config.site' if it exists.  Or, you can set the
+`CONFIG_SITE' environment variable to the location of the site script.
+A warning: not all `configure' scripts look for a site script.
+
+Operation Controls
+==================
+
+   `configure' recognizes the following options to control how it
+operates.
+
+`--cache-file=FILE'
+     Use and save the results of the tests in FILE instead of
+     `./config.cache'.  Set FILE to `/dev/null' to disable caching, for
+     debugging `configure'.
+
+`--help'
+     Print a summary of the options to `configure', and exit.
+
+`--quiet'
+`--silent'
+`-q'
+     Do not print messages saying which checks are being made.  To
+     suppress all normal output, redirect it to `/dev/null' (any error
+     messages will still be shown).
+
+`--srcdir=DIR'
+     Look for the package's source code in directory DIR.  Usually
+     `configure' can determine that directory automatically.
+
+`--version'
+     Print the version of Autoconf used to generate the `configure'
+     script, and exit.
+
+`configure' also accepts some other, not widely useful, options.
diff --git a/Makefile.am b/Makefile.am
new file mode 100644 (file)
index 0000000..5a50830
--- /dev/null
@@ -0,0 +1,12 @@
+## Process this file with automake to create Makefile.in
+
+AUTOMAKE_OPTIONS = 1.4 gnu
+MAINT_CHARSET = latin1
+
+ACLOCAL_AMFLAGS = -I m4
+
+SUBDIRS = gelfx gelfx32 gelf src patches doc testsuite
+
+# Tell version 3.79 and up of GNU make to not build goals in this
+# directory in parallel.
+.NOTPARALLEL:
diff --git a/Makefile.in b/Makefile.in
new file mode 100644 (file)
index 0000000..22ab2b4
--- /dev/null
@@ -0,0 +1,456 @@
+# Makefile.in generated by automake 1.6.3 from Makefile.am.
+# @configure_input@
+
+# Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
+# Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+SHELL = @SHELL@
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = @srcdir@
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+
+bindir = @bindir@
+sbindir = @sbindir@
+libexecdir = @libexecdir@
+datadir = @datadir@
+sysconfdir = @sysconfdir@
+sharedstatedir = @sharedstatedir@
+localstatedir = @localstatedir@
+libdir = @libdir@
+infodir = @infodir@
+mandir = @mandir@
+includedir = @includedir@
+oldincludedir = /usr/include
+pkgdatadir = $(datadir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+top_builddir = .
+
+ACLOCAL = @ACLOCAL@
+AUTOCONF = @AUTOCONF@
+AUTOMAKE = @AUTOMAKE@
+AUTOHEADER = @AUTOHEADER@
+
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+INSTALL = @INSTALL@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_DATA = @INSTALL_DATA@
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = @program_transform_name@
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+host_alias = @host_alias@
+host_triplet = @host@
+
+EXEEXT = @EXEEXT@
+OBJEXT = @OBJEXT@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+AMTAR = @AMTAR@
+AR = @AR@
+AS = @AS@
+AWK = @AWK@
+CC = @CC@
+CPP = @CPP@
+CXX = @CXX@
+CXXCPP = @CXXCPP@
+DEPDIR = @DEPDIR@
+DLLTOOL = @DLLTOOL@
+ECHO = @ECHO@
+EGREP = @EGREP@
+F77 = @F77@
+GCJ = @GCJ@
+GCJFLAGS = @GCJFLAGS@
+GELFINCLUDE = @GELFINCLUDE@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LIBGELF = @LIBGELF@
+LIBTOOL = @LIBTOOL@
+LN_S = @LN_S@
+OBJDUMP = @OBJDUMP@
+PACKAGE = @PACKAGE@
+RANLIB = @RANLIB@
+RC = @RC@
+STRIP = @STRIP@
+VERSION = @VERSION@
+am__include = @am__include@
+am__quote = @am__quote@
+install_sh = @install_sh@
+
+AUTOMAKE_OPTIONS = 1.4 gnu
+MAINT_CHARSET = latin1
+
+ACLOCAL_AMFLAGS = -I m4
+
+SUBDIRS = gelfx gelfx32 gelf src patches doc testsuite
+subdir = .
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
+CONFIG_HEADER = config.h
+CONFIG_CLEAN_FILES =
+DIST_SOURCES =
+
+RECURSIVE_TARGETS = info-recursive dvi-recursive install-info-recursive \
+       uninstall-info-recursive all-recursive install-data-recursive \
+       install-exec-recursive installdirs-recursive install-recursive \
+       uninstall-recursive check-recursive installcheck-recursive
+DIST_COMMON = README AUTHORS COPYING ChangeLog INSTALL Makefile.am \
+       Makefile.in NEWS THANKS TODO aclocal.m4 config.guess \
+       config.h.in config.sub configure configure.in depcomp \
+       install-sh ltconfig ltmain.sh missing mkinstalldirs
+DIST_SUBDIRS = $(SUBDIRS)
+all: config.h
+       $(MAKE) $(AM_MAKEFLAGS) all-recursive
+
+.SUFFIXES:
+
+am__CONFIG_DISTCLEAN_FILES = config.status config.cache config.log \
+ configure.lineno
+$(srcdir)/Makefile.in:  Makefile.am  $(top_srcdir)/configure.in $(ACLOCAL_M4)
+       cd $(top_srcdir) && \
+         $(AUTOMAKE) --gnu  Makefile
+Makefile:  $(srcdir)/Makefile.in  $(top_builddir)/config.status
+       cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__depfiles_maybe)
+
+$(top_builddir)/config.status: $(srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+       $(SHELL) ./config.status --recheck
+$(srcdir)/configure:  $(srcdir)/configure.in $(ACLOCAL_M4) $(CONFIGURE_DEPENDENCIES)
+       cd $(srcdir) && $(AUTOCONF)
+
+$(ACLOCAL_M4):  configure.in m4/libelf.m4
+       cd $(srcdir) && $(ACLOCAL) $(ACLOCAL_AMFLAGS)
+
+config.h: stamp-h1
+       @if test ! -f $@; then \
+         rm -f stamp-h1; \
+         $(MAKE) stamp-h1; \
+       else :; fi
+
+stamp-h1: $(srcdir)/config.h.in $(top_builddir)/config.status
+       @rm -f stamp-h1
+       cd $(top_builddir) && $(SHELL) ./config.status config.h
+
+$(srcdir)/config.h.in:  $(top_srcdir)/configure.in $(ACLOCAL_M4) 
+       cd $(top_srcdir) && $(AUTOHEADER)
+       touch $(srcdir)/config.h.in
+
+distclean-hdr:
+       -rm -f config.h stamp-h1
+
+mostlyclean-libtool:
+       -rm -f *.lo
+
+clean-libtool:
+       -rm -rf .libs _libs
+
+distclean-libtool:
+       -rm -f libtool
+uninstall-info-am:
+
+# This directory's subdirectories are mostly independent; you can cd
+# into them and run `make' without going through this Makefile.
+# To change the values of `make' variables: instead of editing Makefiles,
+# (1) if the variable is set in `config.status', edit `config.status'
+#     (which will cause the Makefiles to be regenerated when you run `make');
+# (2) otherwise, pass the desired values on the `make' command line.
+$(RECURSIVE_TARGETS):
+       @set fnord $$MAKEFLAGS; amf=$$2; \
+       dot_seen=no; \
+       target=`echo $@ | sed s/-recursive//`; \
+       list='$(SUBDIRS)'; for subdir in $$list; do \
+         echo "Making $$target in $$subdir"; \
+         if test "$$subdir" = "."; then \
+           dot_seen=yes; \
+           local_target="$$target-am"; \
+         else \
+           local_target="$$target"; \
+         fi; \
+         (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+          || case "$$amf" in *=*) exit 1;; *k*) fail=yes;; *) exit 1;; esac; \
+       done; \
+       if test "$$dot_seen" = "no"; then \
+         $(MAKE) $(AM_MAKEFLAGS) "$$target-am" || exit 1; \
+       fi; test -z "$$fail"
+
+mostlyclean-recursive clean-recursive distclean-recursive \
+maintainer-clean-recursive:
+       @set fnord $$MAKEFLAGS; amf=$$2; \
+       dot_seen=no; \
+       case "$@" in \
+         distclean-* | maintainer-clean-*) list='$(DIST_SUBDIRS)' ;; \
+         *) list='$(SUBDIRS)' ;; \
+       esac; \
+       rev=''; for subdir in $$list; do \
+         if test "$$subdir" = "."; then :; else \
+           rev="$$subdir $$rev"; \
+         fi; \
+       done; \
+       rev="$$rev ."; \
+       target=`echo $@ | sed s/-recursive//`; \
+       for subdir in $$rev; do \
+         echo "Making $$target in $$subdir"; \
+         if test "$$subdir" = "."; then \
+           local_target="$$target-am"; \
+         else \
+           local_target="$$target"; \
+         fi; \
+         (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+          || case "$$amf" in *=*) exit 1;; *k*) fail=yes;; *) exit 1;; esac; \
+       done && test -z "$$fail"
+tags-recursive:
+       list='$(SUBDIRS)'; for subdir in $$list; do \
+         test "$$subdir" = . || (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) tags); \
+       done
+
+ETAGS = etags
+ETAGSFLAGS =
+
+tags: TAGS
+
+ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
+       list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+       unique=`for i in $$list; do \
+           if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+         done | \
+         $(AWK) '    { files[$$0] = 1; } \
+              END { for (i in files) print i; }'`; \
+       mkid -fID $$unique
+
+TAGS: tags-recursive $(HEADERS) $(SOURCES) config.h.in $(TAGS_DEPENDENCIES) \
+               $(TAGS_FILES) $(LISP)
+       tags=; \
+       here=`pwd`; \
+       list='$(SUBDIRS)'; for subdir in $$list; do \
+         if test "$$subdir" = .; then :; else \
+           test -f $$subdir/TAGS && tags="$$tags -i $$here/$$subdir/TAGS"; \
+         fi; \
+       done; \
+       list='$(SOURCES) $(HEADERS) config.h.in $(LISP) $(TAGS_FILES)'; \
+       unique=`for i in $$list; do \
+           if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+         done | \
+         $(AWK) '    { files[$$0] = 1; } \
+              END { for (i in files) print i; }'`; \
+       test -z "$(ETAGS_ARGS)$$tags$$unique" \
+         || $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+            $$tags $$unique
+
+GTAGS:
+       here=`$(am__cd) $(top_builddir) && pwd` \
+         && cd $(top_srcdir) \
+         && gtags -i $(GTAGS_ARGS) $$here
+
+distclean-tags:
+       -rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+
+top_distdir = .
+distdir = $(PACKAGE)-$(VERSION)
+
+am__remove_distdir = \
+  { test ! -d $(distdir) \
+    || { find $(distdir) -type d ! -perm -200 -exec chmod u+w {} ';' \
+         && rm -fr $(distdir); }; }
+
+GZIP_ENV = --best
+distcleancheck_listfiles = find . -type f -print
+
+distdir: $(DISTFILES)
+       $(am__remove_distdir)
+       mkdir $(distdir)
+       @list='$(DISTFILES)'; for file in $$list; do \
+         if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+         dir=`echo "$$file" | sed -e 's,/[^/]*$$,,'`; \
+         if test "$$dir" != "$$file" && test "$$dir" != "."; then \
+           dir="/$$dir"; \
+           $(mkinstalldirs) "$(distdir)$$dir"; \
+         else \
+           dir=''; \
+         fi; \
+         if test -d $$d/$$file; then \
+           if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+             cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+           fi; \
+           cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+         else \
+           test -f $(distdir)/$$file \
+           || cp -p $$d/$$file $(distdir)/$$file \
+           || exit 1; \
+         fi; \
+       done
+       list='$(SUBDIRS)'; for subdir in $$list; do \
+         if test "$$subdir" = .; then :; else \
+           test -d $(distdir)/$$subdir \
+           || mkdir $(distdir)/$$subdir \
+           || exit 1; \
+           (cd $$subdir && \
+             $(MAKE) $(AM_MAKEFLAGS) \
+               top_distdir="$(top_distdir)" \
+               distdir=../$(distdir)/$$subdir \
+               distdir) \
+             || exit 1; \
+         fi; \
+       done
+       -find $(distdir) -type d ! -perm -777 -exec chmod a+rwx {} \; -o \
+         ! -type d ! -perm -444 -links 1 -exec chmod a+r {} \; -o \
+         ! -type d ! -perm -400 -exec chmod a+r {} \; -o \
+         ! -type d ! -perm -444 -exec $(SHELL) $(install_sh) -c -m a+r {} {} \; \
+       || chmod -R a+r $(distdir)
+dist-gzip: distdir
+       $(AMTAR) chof - $(distdir) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).tar.gz
+       $(am__remove_distdir)
+
+dist dist-all: distdir
+       $(AMTAR) chof - $(distdir) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).tar.gz
+       $(am__remove_distdir)
+
+# This target untars the dist file and tries a VPATH configuration.  Then
+# it guarantees that the distribution is self-contained by making another
+# tarfile.
+distcheck: dist
+       $(am__remove_distdir)
+       GZIP=$(GZIP_ENV) gunzip -c $(distdir).tar.gz | $(AMTAR) xf -
+       chmod -R a-w $(distdir); chmod a+w $(distdir)
+       mkdir $(distdir)/=build
+       mkdir $(distdir)/=inst
+       chmod a-w $(distdir)
+       dc_install_base=`$(am__cd) $(distdir)/=inst && pwd` \
+         && cd $(distdir)/=build \
+         && ../configure --srcdir=.. --prefix=$$dc_install_base \
+           $(DISTCHECK_CONFIGURE_FLAGS) \
+         && $(MAKE) $(AM_MAKEFLAGS) \
+         && $(MAKE) $(AM_MAKEFLAGS) dvi \
+         && $(MAKE) $(AM_MAKEFLAGS) check \
+         && $(MAKE) $(AM_MAKEFLAGS) install \
+         && $(MAKE) $(AM_MAKEFLAGS) installcheck \
+         && $(MAKE) $(AM_MAKEFLAGS) uninstall \
+         && (test `find $$dc_install_base -type f -print | wc -l` -le 1 \
+             || { echo "ERROR: files left after uninstall:" ; \
+                  find $$dc_install_base -type f -print ; \
+                  exit 1; } >&2 ) \
+         && $(MAKE) $(AM_MAKEFLAGS) dist-gzip \
+         && rm -f $(distdir).tar.gz \
+         && $(MAKE) $(AM_MAKEFLAGS) distcleancheck
+       $(am__remove_distdir)
+       @echo "$(distdir).tar.gz is ready for distribution" | \
+         sed 'h;s/./=/g;p;x;p;x'
+distcleancheck: distclean
+       if test '$(srcdir)' = . ; then \
+         echo "ERROR: distcleancheck can only run from a VPATH build" ; \
+         exit 1 ; \
+       fi
+       test `$(distcleancheck_listfiles) | wc -l` -eq 0 \
+         || { echo "ERROR: files left after distclean:" ; \
+              $(distcleancheck_listfiles) ; \
+              exit 1; } >&2
+check-am: all-am
+check: check-recursive
+all-am: Makefile config.h
+installdirs: installdirs-recursive
+installdirs-am:
+
+install: install-recursive
+install-exec: install-exec-recursive
+install-data: install-data-recursive
+uninstall: uninstall-recursive
+
+install-am: all-am
+       @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-recursive
+install-strip:
+       $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+         INSTALL_STRIP_FLAG=-s \
+         `test -z '$(STRIP)' || \
+           echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+       -rm -f Makefile $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+       @echo "This command is intended for maintainers to use"
+       @echo "it deletes files that may require special tools to rebuild."
+clean: clean-recursive
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-recursive
+       -rm -f $(am__CONFIG_DISTCLEAN_FILES)
+distclean-am: clean-am distclean-generic distclean-hdr distclean-libtool \
+       distclean-tags
+
+dvi: dvi-recursive
+
+dvi-am:
+
+info: info-recursive
+
+info-am:
+
+install-data-am:
+
+install-exec-am:
+
+install-info: install-info-recursive
+
+install-man:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-recursive
+       -rm -f $(am__CONFIG_DISTCLEAN_FILES)
+       -rm -rf autom4te.cache
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-recursive
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+uninstall-am: uninstall-info-am
+
+uninstall-info: uninstall-info-recursive
+
+.PHONY: $(RECURSIVE_TARGETS) GTAGS all all-am check check-am clean \
+       clean-generic clean-libtool clean-recursive dist dist-all \
+       dist-gzip distcheck distclean distclean-generic distclean-hdr \
+       distclean-libtool distclean-recursive distclean-tags \
+       distcleancheck distdir dvi dvi-am dvi-recursive info info-am \
+       info-recursive install install-am install-data install-data-am \
+       install-data-recursive install-exec install-exec-am \
+       install-exec-recursive install-info install-info-am \
+       install-info-recursive install-man install-recursive \
+       install-strip installcheck installcheck-am installdirs \
+       installdirs-am installdirs-recursive maintainer-clean \
+       maintainer-clean-generic maintainer-clean-recursive mostlyclean \
+       mostlyclean-generic mostlyclean-libtool mostlyclean-recursive \
+       tags tags-recursive uninstall uninstall-am uninstall-info-am \
+       uninstall-info-recursive uninstall-recursive
+
+
+# Tell version 3.79 and up of GNU make to not build goals in this
+# directory in parallel.
+.NOTPARALLEL:
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/NEWS b/NEWS
new file mode 100644 (file)
index 0000000..c36e768
--- /dev/null
+++ b/NEWS
@@ -0,0 +1 @@
+No news yet.
diff --git a/README b/README
new file mode 100644 (file)
index 0000000..b6dc3ba
--- /dev/null
+++ b/README
@@ -0,0 +1 @@
+ELF prelinking utility to speed up dynamic linking.
diff --git a/THANKS b/THANKS
new file mode 100644 (file)
index 0000000..9f42254
--- /dev/null
+++ b/THANKS
@@ -0,0 +1 @@
+We'll see.
diff --git a/TODO b/TODO
new file mode 100644 (file)
index 0000000..0a3d072
--- /dev/null
+++ b/TODO
@@ -0,0 +1,7 @@
+- sparse files
+- security audit:
+  - should we only limit prelinking in non-world writeable directories
+- more ports
+- hack support for multi-ABI arches
+- more testing
+- some more C++ optimizations
diff --git a/aclocal.m4 b/aclocal.m4
new file mode 100644 (file)
index 0000000..a357ef7
--- /dev/null
@@ -0,0 +1,6833 @@
+# aclocal.m4 generated automatically by aclocal 1.6.3 -*- Autoconf -*-
+
+# Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002
+# Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+# Like AC_CONFIG_HEADER, but automatically create stamp file. -*- Autoconf -*-
+
+# Copyright 1996, 1997, 2000, 2001 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+AC_PREREQ([2.52])
+
+# serial 6
+
+# When config.status generates a header, we must update the stamp-h file.
+# This file resides in the same directory as the config header
+# that is generated.  We must strip everything past the first ":",
+# and everything past the last "/".
+
+# _AM_DIRNAME(PATH)
+# -----------------
+# Like AS_DIRNAME, only do it during macro expansion
+AC_DEFUN([_AM_DIRNAME],
+       [m4_if(regexp([$1], [^.*[^/]//*[^/][^/]*/*$]), -1,
+             m4_if(regexp([$1], [^//\([^/]\|$\)]), -1,
+                   m4_if(regexp([$1], [^/.*]), -1,
+                         [.],
+                         patsubst([$1], [^\(/\).*], [\1])),
+                   patsubst([$1], [^\(//\)\([^/].*\|$\)], [\1])),
+             patsubst([$1], [^\(.*[^/]\)//*[^/][^/]*/*$], [\1]))[]dnl
+])# _AM_DIRNAME
+
+
+# The stamp files are numbered to have different names.
+# We could number them on a directory basis, but that's additional
+# complications, let's have a unique counter.
+m4_define([_AM_STAMP_Count], [0])
+
+
+# _AM_STAMP(HEADER)
+# -----------------
+# The name of the stamp file for HEADER.
+AC_DEFUN([_AM_STAMP],
+[m4_define([_AM_STAMP_Count], m4_incr(_AM_STAMP_Count))dnl
+AS_ESCAPE(_AM_DIRNAME(patsubst([$1],
+                               [:.*])))/stamp-h[]_AM_STAMP_Count])
+
+
+# _AM_CONFIG_HEADER(HEADER[:SOURCES], COMMANDS, INIT-COMMANDS)
+# ------------------------------------------------------------
+# We used to try to get a real timestamp in stamp-h.  But the fear is that
+# that will cause unnecessary cvs conflicts.
+AC_DEFUN([_AM_CONFIG_HEADER],
+[# Add the stamp file to the list of files AC keeps track of,
+# along with our hook.
+AC_CONFIG_HEADERS([$1],
+                  [# update the timestamp
+echo 'timestamp for $1' >"_AM_STAMP([$1])"
+$2],
+                  [$3])
+])# _AM_CONFIG_HEADER
+
+
+# AM_CONFIG_HEADER(HEADER[:SOURCES]..., COMMANDS, INIT-COMMANDS)
+# --------------------------------------------------------------
+AC_DEFUN([AM_CONFIG_HEADER],
+[AC_FOREACH([_AM_File], [$1], [_AM_CONFIG_HEADER(_AM_File, [$2], [$3])])
+])# AM_CONFIG_HEADER
+
+# Do all the work for Automake.                            -*- Autoconf -*-
+
+# This macro actually does too much some checks are only needed if
+# your package does certain things.  But this isn't really a big deal.
+
+# Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002
+# Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+# serial 8
+
+# There are a few dirty hacks below to avoid letting `AC_PROG_CC' be
+# written in clear, in which case automake, when reading aclocal.m4,
+# will think it sees a *use*, and therefore will trigger all it's
+# C support machinery.  Also note that it means that autoscan, seeing
+# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
+
+
+AC_PREREQ([2.52])
+
+# Autoconf 2.50 wants to disallow AM_ names.  We explicitly allow
+# the ones we care about.
+m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
+
+# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
+# AM_INIT_AUTOMAKE([OPTIONS])
+# -----------------------------------------------
+# The call with PACKAGE and VERSION arguments is the old style
+# call (pre autoconf-2.50), which is being phased out.  PACKAGE
+# and VERSION should now be passed to AC_INIT and removed from
+# the call to AM_INIT_AUTOMAKE.
+# We support both call styles for the transition.  After
+# the next Automake release, Autoconf can make the AC_INIT
+# arguments mandatory, and then we can depend on a new Autoconf
+# release and drop the old call support.
+AC_DEFUN([AM_INIT_AUTOMAKE],
+[AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
+ AC_REQUIRE([AC_PROG_INSTALL])dnl
+# test to see if srcdir already configured
+if test "`cd $srcdir && pwd`" != "`pwd`" &&
+   test -f $srcdir/config.status; then
+  AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
+fi
+
+# Define the identity of the package.
+dnl Distinguish between old-style and new-style calls.
+m4_ifval([$2],
+[m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
+ AC_SUBST([PACKAGE], [$1])dnl
+ AC_SUBST([VERSION], [$2])],
+[_AM_SET_OPTIONS([$1])dnl
+ AC_SUBST([PACKAGE], [AC_PACKAGE_TARNAME])dnl
+ AC_SUBST([VERSION], [AC_PACKAGE_VERSION])])dnl
+
+_AM_IF_OPTION([no-define],,
+[AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
+ AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])])dnl
+
+# Some tools Automake needs.
+AC_REQUIRE([AM_SANITY_CHECK])dnl
+AC_REQUIRE([AC_ARG_PROGRAM])dnl
+AM_MISSING_PROG(ACLOCAL, aclocal-${am__api_version})
+AM_MISSING_PROG(AUTOCONF, autoconf)
+AM_MISSING_PROG(AUTOMAKE, automake-${am__api_version})
+AM_MISSING_PROG(AUTOHEADER, autoheader)
+AM_MISSING_PROG(MAKEINFO, makeinfo)
+AM_MISSING_PROG(AMTAR, tar)
+AM_PROG_INSTALL_SH
+AM_PROG_INSTALL_STRIP
+# We need awk for the "check" target.  The system "awk" is bad on
+# some platforms.
+AC_REQUIRE([AC_PROG_AWK])dnl
+AC_REQUIRE([AC_PROG_MAKE_SET])dnl
+
+_AM_IF_OPTION([no-dependencies],,
+[AC_PROVIDE_IFELSE([AC_PROG_][CC],
+                  [_AM_DEPENDENCIES(CC)],
+                  [define([AC_PROG_][CC],
+                          defn([AC_PROG_][CC])[_AM_DEPENDENCIES(CC)])])dnl
+AC_PROVIDE_IFELSE([AC_PROG_][CXX],
+                  [_AM_DEPENDENCIES(CXX)],
+                  [define([AC_PROG_][CXX],
+                          defn([AC_PROG_][CXX])[_AM_DEPENDENCIES(CXX)])])dnl
+])
+])
+
+# Copyright 2002  Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+
+# AM_AUTOMAKE_VERSION(VERSION)
+# ----------------------------
+# Automake X.Y traces this macro to ensure aclocal.m4 has been
+# generated from the m4 files accompanying Automake X.Y.
+AC_DEFUN([AM_AUTOMAKE_VERSION],[am__api_version="1.6"])
+
+# AM_SET_CURRENT_AUTOMAKE_VERSION
+# -------------------------------
+# Call AM_AUTOMAKE_VERSION so it can be traced.
+# This function is AC_REQUIREd by AC_INIT_AUTOMAKE.
+AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
+        [AM_AUTOMAKE_VERSION([1.6.3])])
+
+# Helper functions for option handling.                    -*- Autoconf -*-
+
+# Copyright 2001, 2002  Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+# serial 2
+
+# _AM_MANGLE_OPTION(NAME)
+# -----------------------
+AC_DEFUN([_AM_MANGLE_OPTION],
+[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
+
+# _AM_SET_OPTION(NAME)
+# ------------------------------
+# Set option NAME.  Presently that only means defining a flag for this option.
+AC_DEFUN([_AM_SET_OPTION],
+[m4_define(_AM_MANGLE_OPTION([$1]), 1)])
+
+# _AM_SET_OPTIONS(OPTIONS)
+# ----------------------------------
+# OPTIONS is a space-separated list of Automake options.
+AC_DEFUN([_AM_SET_OPTIONS],
+[AC_FOREACH([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
+
+# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
+# -------------------------------------------
+# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
+AC_DEFUN([_AM_IF_OPTION],
+[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
+
+#
+# Check to make sure that the build environment is sane.
+#
+
+# Copyright 1996, 1997, 2000, 2001 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+# serial 3
+
+# AM_SANITY_CHECK
+# ---------------
+AC_DEFUN([AM_SANITY_CHECK],
+[AC_MSG_CHECKING([whether build environment is sane])
+# Just in case
+sleep 1
+echo timestamp > conftest.file
+# Do `set' in a subshell so we don't clobber the current shell's
+# arguments.  Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+   set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null`
+   if test "$[*]" = "X"; then
+      # -L didn't work.
+      set X `ls -t $srcdir/configure conftest.file`
+   fi
+   rm -f conftest.file
+   if test "$[*]" != "X $srcdir/configure conftest.file" \
+      && test "$[*]" != "X conftest.file $srcdir/configure"; then
+
+      # If neither matched, then we have a broken ls.  This can happen
+      # if, for instance, CONFIG_SHELL is bash and it inherits a
+      # broken ls alias from the environment.  This has actually
+      # happened.  Such a system could not be considered "sane".
+      AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
+alias in your environment])
+   fi
+
+   test "$[2]" = conftest.file
+   )
+then
+   # Ok.
+   :
+else
+   AC_MSG_ERROR([newly created file is older than distributed files!
+Check your system clock])
+fi
+AC_MSG_RESULT(yes)])
+
+#  -*- Autoconf -*-
+
+
+# Copyright 1997, 1999, 2000, 2001 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+# serial 3
+
+# AM_MISSING_PROG(NAME, PROGRAM)
+# ------------------------------
+AC_DEFUN([AM_MISSING_PROG],
+[AC_REQUIRE([AM_MISSING_HAS_RUN])
+$1=${$1-"${am_missing_run}$2"}
+AC_SUBST($1)])
+
+
+# AM_MISSING_HAS_RUN
+# ------------------
+# Define MISSING if not defined so far and test if it supports --run.
+# If it does, set am_missing_run to use it, otherwise, to nothing.
+AC_DEFUN([AM_MISSING_HAS_RUN],
+[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
+test x"${MISSING+set}" = xset || MISSING="\${SHELL} $am_aux_dir/missing"
+# Use eval to expand $SHELL
+if eval "$MISSING --run true"; then
+  am_missing_run="$MISSING --run "
+else
+  am_missing_run=
+  AC_MSG_WARN([`missing' script is too old or missing])
+fi
+])
+
+# AM_AUX_DIR_EXPAND
+
+# Copyright 2001 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
+# $ac_aux_dir to `$srcdir/foo'.  In other projects, it is set to
+# `$srcdir', `$srcdir/..', or `$srcdir/../..'.
+#
+# Of course, Automake must honor this variable whenever it calls a
+# tool from the auxiliary directory.  The problem is that $srcdir (and
+# therefore $ac_aux_dir as well) can be either absolute or relative,
+# depending on how configure is run.  This is pretty annoying, since
+# it makes $ac_aux_dir quite unusable in subdirectories: in the top
+# source directory, any form will work fine, but in subdirectories a
+# relative path needs to be adjusted first.
+#
+# $ac_aux_dir/missing
+#    fails when called from a subdirectory if $ac_aux_dir is relative
+# $top_srcdir/$ac_aux_dir/missing
+#    fails if $ac_aux_dir is absolute,
+#    fails when called from a subdirectory in a VPATH build with
+#          a relative $ac_aux_dir
+#
+# The reason of the latter failure is that $top_srcdir and $ac_aux_dir
+# are both prefixed by $srcdir.  In an in-source build this is usually
+# harmless because $srcdir is `.', but things will broke when you
+# start a VPATH build or use an absolute $srcdir.
+#
+# So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
+# iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
+#   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
+# and then we would define $MISSING as
+#   MISSING="\${SHELL} $am_aux_dir/missing"
+# This will work as long as MISSING is not called from configure, because
+# unfortunately $(top_srcdir) has no meaning in configure.
+# However there are other variables, like CC, which are often used in
+# configure, and could therefore not use this "fixed" $ac_aux_dir.
+#
+# Another solution, used here, is to always expand $ac_aux_dir to an
+# absolute PATH.  The drawback is that using absolute paths prevent a
+# configured tree to be moved without reconfiguration.
+
+# Rely on autoconf to set up CDPATH properly.
+AC_PREREQ([2.50])
+
+AC_DEFUN([AM_AUX_DIR_EXPAND], [
+# expand $ac_aux_dir to an absolute path
+am_aux_dir=`cd $ac_aux_dir && pwd`
+])
+
+# AM_PROG_INSTALL_SH
+# ------------------
+# Define $install_sh.
+
+# Copyright 2001 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+AC_DEFUN([AM_PROG_INSTALL_SH],
+[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
+install_sh=${install_sh-"$am_aux_dir/install-sh"}
+AC_SUBST(install_sh)])
+
+# AM_PROG_INSTALL_STRIP
+
+# Copyright 2001 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+# One issue with vendor `install' (even GNU) is that you can't
+# specify the program used to strip binaries.  This is especially
+# annoying in cross-compiling environments, where the build's strip
+# is unlikely to handle the host's binaries.
+# Fortunately install-sh will honor a STRIPPROG variable, so we
+# always use install-sh in `make install-strip', and initialize
+# STRIPPROG with the value of the STRIP variable (set by the user).
+AC_DEFUN([AM_PROG_INSTALL_STRIP],
+[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
+# Installed binaries are usually stripped using `strip' when the user
+# run `make install-strip'.  However `strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the `STRIP' environment variable to overrule this program.
+dnl Don't test for $cross_compiling = yes, because it might be `maybe'.
+if test "$cross_compiling" != no; then
+  AC_CHECK_TOOL([STRIP], [strip], :)
+fi
+INSTALL_STRIP_PROGRAM="\${SHELL} \$(install_sh) -c -s"
+AC_SUBST([INSTALL_STRIP_PROGRAM])])
+
+# serial 4                                             -*- Autoconf -*-
+
+# Copyright 1999, 2000, 2001 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+
+# There are a few dirty hacks below to avoid letting `AC_PROG_CC' be
+# written in clear, in which case automake, when reading aclocal.m4,
+# will think it sees a *use*, and therefore will trigger all it's
+# C support machinery.  Also note that it means that autoscan, seeing
+# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
+
+
+
+# _AM_DEPENDENCIES(NAME)
+# ----------------------
+# See how the compiler implements dependency checking.
+# NAME is "CC", "CXX", "GCJ", or "OBJC".
+# We try a few techniques and use that to set a single cache variable.
+#
+# We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
+# modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
+# dependency, and given that the user is not expected to run this macro,
+# just rely on AC_PROG_CC.
+AC_DEFUN([_AM_DEPENDENCIES],
+[AC_REQUIRE([AM_SET_DEPDIR])dnl
+AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
+AC_REQUIRE([AM_MAKE_INCLUDE])dnl
+AC_REQUIRE([AM_DEP_TRACK])dnl
+
+ifelse([$1], CC,   [depcc="$CC"   am_compiler_list=],
+       [$1], CXX,  [depcc="$CXX"  am_compiler_list=],
+       [$1], OBJC, [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
+       [$1], GCJ,  [depcc="$GCJ"  am_compiler_list='gcc3 gcc'],
+                   [depcc="$$1"   am_compiler_list=])
+
+AC_CACHE_CHECK([dependency style of $depcc],
+               [am_cv_$1_dependencies_compiler_type],
+[if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+  # We make a subdir and do the tests there.  Otherwise we can end up
+  # making bogus files that we don't know about and never remove.  For
+  # instance it was reported that on HP-UX the gcc test will end up
+  # making a dummy file named `D' -- because `-MD' means `put the output
+  # in D'.
+  mkdir conftest.dir
+  # Copy depcomp to subdir because otherwise we won't find it if we're
+  # using a relative directory.
+  cp "$am_depcomp" conftest.dir
+  cd conftest.dir
+
+  am_cv_$1_dependencies_compiler_type=none
+  if test "$am_compiler_list" = ""; then
+     am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
+  fi
+  for depmode in $am_compiler_list; do
+    # We need to recreate these files for each test, as the compiler may
+    # overwrite some of them when testing with obscure command lines.
+    # This happens at least with the AIX C compiler.
+    echo '#include "conftest.h"' > conftest.c
+    echo 'int i;' > conftest.h
+    echo "${am__include} ${am__quote}conftest.Po${am__quote}" > confmf
+
+    case $depmode in
+    nosideeffect)
+      # after this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested
+      if test "x$enable_dependency_tracking" = xyes; then
+       continue
+      else
+       break
+      fi
+      ;;
+    none) break ;;
+    esac
+    # We check with `-c' and `-o' for the sake of the "dashmstdout"
+    # mode.  It turns out that the SunPro C++ compiler does not properly
+    # handle `-M -o', and we need to detect this.
+    if depmode=$depmode \
+       source=conftest.c object=conftest.o \
+       depfile=conftest.Po tmpdepfile=conftest.TPo \
+       $SHELL ./depcomp $depcc -c conftest.c -o conftest.o >/dev/null 2>&1 &&
+       grep conftest.h conftest.Po > /dev/null 2>&1 &&
+       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+      am_cv_$1_dependencies_compiler_type=$depmode
+      break
+    fi
+  done
+
+  cd ..
+  rm -rf conftest.dir
+else
+  am_cv_$1_dependencies_compiler_type=none
+fi
+])
+AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
+])
+
+
+# AM_SET_DEPDIR
+# -------------
+# Choose a directory name for dependency files.
+# This macro is AC_REQUIREd in _AM_DEPENDENCIES
+AC_DEFUN([AM_SET_DEPDIR],
+[rm -f .deps 2>/dev/null
+mkdir .deps 2>/dev/null
+if test -d .deps; then
+  DEPDIR=.deps
+else
+  # MS-DOS does not allow filenames that begin with a dot.
+  DEPDIR=_deps
+fi
+rmdir .deps 2>/dev/null
+AC_SUBST([DEPDIR])
+])
+
+
+# AM_DEP_TRACK
+# ------------
+AC_DEFUN([AM_DEP_TRACK],
+[AC_ARG_ENABLE(dependency-tracking,
+[  --disable-dependency-tracking Speeds up one-time builds
+  --enable-dependency-tracking  Do not reject slow dependency extractors])
+if test "x$enable_dependency_tracking" != xno; then
+  am_depcomp="$ac_aux_dir/depcomp"
+  AMDEPBACKSLASH='\'
+fi
+AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
+AC_SUBST([AMDEPBACKSLASH])
+])
+
+# Generate code to set up dependency tracking.   -*- Autoconf -*-
+
+# Copyright 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+#serial 2
+
+# _AM_OUTPUT_DEPENDENCY_COMMANDS
+# ------------------------------
+AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
+[for mf in $CONFIG_FILES; do
+  # Strip MF so we end up with the name of the file.
+  mf=`echo "$mf" | sed -e 's/:.*$//'`
+  # Check whether this is an Automake generated Makefile or not.
+  # We used to match only the files named `Makefile.in', but
+  # some people rename them; so instead we look at the file content.
+  # Grep'ing the first line is not enough: some people post-process
+  # each Makefile.in and add a new line on top of each file to say so.
+  # So let's grep whole file.
+  if grep '^#.*generated by automake' $mf > /dev/null 2>&1; then
+    dirpart=`AS_DIRNAME("$mf")`
+  else
+    continue
+  fi
+  grep '^DEP_FILES *= *[[^ @%:@]]' < "$mf" > /dev/null || continue
+  # Extract the definition of DEP_FILES from the Makefile without
+  # running `make'.
+  DEPDIR=`sed -n -e '/^DEPDIR = / s///p' < "$mf"`
+  test -z "$DEPDIR" && continue
+  # When using ansi2knr, U may be empty or an underscore; expand it
+  U=`sed -n -e '/^U = / s///p' < "$mf"`
+  test -d "$dirpart/$DEPDIR" || mkdir "$dirpart/$DEPDIR"
+  # We invoke sed twice because it is the simplest approach to
+  # changing $(DEPDIR) to its actual value in the expansion.
+  for file in `sed -n -e '
+    /^DEP_FILES = .*\\\\$/ {
+      s/^DEP_FILES = //
+      :loop
+       s/\\\\$//
+       p
+       n
+       /\\\\$/ b loop
+      p
+    }
+    /^DEP_FILES = / s/^DEP_FILES = //p' < "$mf" | \
+       sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g' -e 's/\$U/'"$U"'/g'`; do
+    # Make sure the directory exists.
+    test -f "$dirpart/$file" && continue
+    fdir=`AS_DIRNAME(["$file"])`
+    AS_MKDIR_P([$dirpart/$fdir])
+    # echo "creating $dirpart/$file"
+    echo '# dummy' > "$dirpart/$file"
+  done
+done
+])# _AM_OUTPUT_DEPENDENCY_COMMANDS
+
+
+# AM_OUTPUT_DEPENDENCY_COMMANDS
+# -----------------------------
+# This macro should only be invoked once -- use via AC_REQUIRE.
+#
+# This code is only required when automatic dependency tracking
+# is enabled.  FIXME.  This creates each `.P' file that we will
+# need in order to bootstrap the dependency handling code.
+AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
+[AC_CONFIG_COMMANDS([depfiles],
+     [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
+     [AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"])
+])
+
+# Copyright 2001 Free Software Foundation, Inc.             -*- Autoconf -*-
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+# serial 2
+
+# AM_MAKE_INCLUDE()
+# -----------------
+# Check to see how make treats includes.
+AC_DEFUN([AM_MAKE_INCLUDE],
+[am_make=${MAKE-make}
+cat > confinc << 'END'
+doit:
+       @echo done
+END
+# If we don't find an include directive, just comment out the code.
+AC_MSG_CHECKING([for style of include used by $am_make])
+am__include="#"
+am__quote=
+_am_result=none
+# First try GNU make style include.
+echo "include confinc" > confmf
+# We grep out `Entering directory' and `Leaving directory'
+# messages which can occur if `w' ends up in MAKEFLAGS.
+# In particular we don't look at `^make:' because GNU make might
+# be invoked under some other name (usually "gmake"), in which
+# case it prints its new name instead of `make'.
+if test "`$am_make -s -f confmf 2> /dev/null | fgrep -v 'ing directory'`" = "done"; then
+   am__include=include
+   am__quote=
+   _am_result=GNU
+fi
+# Now try BSD make style include.
+if test "$am__include" = "#"; then
+   echo '.include "confinc"' > confmf
+   if test "`$am_make -s -f confmf 2> /dev/null`" = "done"; then
+      am__include=.include
+      am__quote="\""
+      _am_result=BSD
+   fi
+fi
+AC_SUBST(am__include)
+AC_SUBST(am__quote)
+AC_MSG_RESULT($_am_result)
+rm -f confinc confmf
+])
+
+# AM_CONDITIONAL                                              -*- Autoconf -*-
+
+# Copyright 1997, 2000, 2001 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+# serial 5
+
+AC_PREREQ(2.52)
+
+# AM_CONDITIONAL(NAME, SHELL-CONDITION)
+# -------------------------------------
+# Define a conditional.
+AC_DEFUN([AM_CONDITIONAL],
+[ifelse([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
+        [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
+AC_SUBST([$1_TRUE])
+AC_SUBST([$1_FALSE])
+if $2; then
+  $1_TRUE=
+  $1_FALSE='#'
+else
+  $1_TRUE='#'
+  $1_FALSE=
+fi
+AC_CONFIG_COMMANDS_PRE(
+[if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
+  AC_MSG_ERROR([conditional \"$1\" was never defined.
+Usually this means the macro was only invoked conditionally.])
+fi])])
+
+# libtool.m4 - Configure libtool for the host system. -*-Autoconf-*-
+
+# serial 47 AC_PROG_LIBTOOL
+
+
+# AC_PROVIDE_IFELSE(MACRO-NAME, IF-PROVIDED, IF-NOT-PROVIDED)
+# -----------------------------------------------------------
+# If this macro is not defined by Autoconf, define it here.
+m4_ifdef([AC_PROVIDE_IFELSE],
+         [],
+         [m4_define([AC_PROVIDE_IFELSE],
+                [m4_ifdef([AC_PROVIDE_$1],
+                          [$2], [$3])])])
+
+
+# AC_PROG_LIBTOOL
+# ---------------
+AC_DEFUN([AC_PROG_LIBTOOL],
+[AC_REQUIRE([_AC_PROG_LIBTOOL])dnl
+dnl If AC_PROG_CXX has already been expanded, run AC_LIBTOOL_CXX
+dnl immediately, otherwise, hook it in at the end of AC_PROG_CXX.
+  AC_PROVIDE_IFELSE([AC_PROG_CXX],
+    [AC_LIBTOOL_CXX],
+    [define([AC_PROG_CXX], defn([AC_PROG_CXX])[AC_LIBTOOL_CXX
+  ])])
+dnl And a similar setup for Fortran 77 support
+  AC_PROVIDE_IFELSE([AC_PROG_F77],
+    [AC_LIBTOOL_F77],
+    [define([AC_PROG_F77], defn([AC_PROG_F77])[AC_LIBTOOL_F77
+])])
+
+dnl Quote A][M_PROG_GCJ so that aclocal doesn't bring it in needlessly.
+dnl If either AC_PROG_GCJ or A][M_PROG_GCJ have already been expanded, run
+dnl AC_LIBTOOL_GCJ immediately, otherwise, hook it in at the end of both.
+  AC_PROVIDE_IFELSE([AC_PROG_GCJ],
+    [AC_LIBTOOL_GCJ],
+    [AC_PROVIDE_IFELSE([A][M_PROG_GCJ],
+      [AC_LIBTOOL_GCJ],
+      [AC_PROVIDE_IFELSE([LT_AC_PROG_GCJ],
+       [AC_LIBTOOL_GCJ],
+      [ifdef([AC_PROG_GCJ],
+            [define([AC_PROG_GCJ], defn([AC_PROG_GCJ])[AC_LIBTOOL_GCJ])])
+       ifdef([A][M_PROG_GCJ],
+            [define([A][M_PROG_GCJ], defn([A][M_PROG_GCJ])[AC_LIBTOOL_GCJ])])
+       ifdef([LT_AC_PROG_GCJ],
+            [define([LT_AC_PROG_GCJ],
+               defn([LT_AC_PROG_GCJ])[AC_LIBTOOL_GCJ])])])])
+])])# AC_PROG_LIBTOOL
+
+
+# _AC_PROG_LIBTOOL
+# ----------------
+AC_DEFUN([_AC_PROG_LIBTOOL],
+[AC_REQUIRE([AC_LIBTOOL_SETUP])dnl
+AC_BEFORE([$0],[AC_LIBTOOL_CXX])dnl
+AC_BEFORE([$0],[AC_LIBTOOL_F77])dnl
+AC_BEFORE([$0],[AC_LIBTOOL_GCJ])dnl
+
+# This can be used to rebuild libtool when needed
+LIBTOOL_DEPS="$ac_aux_dir/ltmain.sh"
+
+# Always use our own libtool.
+LIBTOOL='$(SHELL) $(top_builddir)/libtool'
+AC_SUBST(LIBTOOL)dnl
+
+# Prevent multiple expansion
+define([AC_PROG_LIBTOOL], [])
+])# _AC_PROG_LIBTOOL
+
+
+# AC_LIBTOOL_SETUP
+# ----------------
+AC_DEFUN([AC_LIBTOOL_SETUP],
+[AC_PREREQ(2.50)dnl
+AC_REQUIRE([AC_ENABLE_SHARED])dnl
+AC_REQUIRE([AC_ENABLE_STATIC])dnl
+AC_REQUIRE([AC_ENABLE_FAST_INSTALL])dnl
+AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_CANONICAL_BUILD])dnl
+AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([AC_PROG_LD])dnl
+AC_REQUIRE([AC_PROG_LD_RELOAD_FLAG])dnl
+AC_REQUIRE([AC_PROG_NM])dnl
+
+AC_REQUIRE([AC_PROG_LN_S])dnl
+AC_REQUIRE([AC_DEPLIBS_CHECK_METHOD])dnl
+# Autoconf 2.13's AC_OBJEXT and AC_EXEEXT macros only works for C compilers!
+AC_REQUIRE([AC_OBJEXT])dnl
+AC_REQUIRE([AC_EXEEXT])dnl
+dnl
+
+AC_LIBTOOL_SYS_MAX_CMD_LEN
+AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE
+AC_LIBTOOL_OBJDIR
+
+AC_REQUIRE([_LT_AC_SYS_COMPILER])dnl
+_LT_AC_PROG_ECHO_BACKSLASH
+
+case $host_os in
+aix3*)
+  # AIX sometimes has problems with the GCC collect2 program.  For some
+  # reason, if we set the COLLECT_NAMES environment variable, the problems
+  # vanish in a puff of smoke.
+  if test "X${COLLECT_NAMES+set}" != Xset; then
+    COLLECT_NAMES=
+    export COLLECT_NAMES
+  fi
+  ;;
+esac
+
+# Sed substitution that helps us do robust quoting.  It backslashifies
+# metacharacters that are still active within double-quoted strings.
+Xsed='sed -e s/^X//'
+[sed_quote_subst='s/\([\\"\\`$\\\\]\)/\\\1/g']
+
+# Same as above, but do not quote variable references.
+[double_quote_subst='s/\([\\"\\`\\\\]\)/\\\1/g']
+
+# Sed substitution to delay expansion of an escaped shell variable in a
+# double_quote_subst'ed string.
+delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'
+
+# Sed substitution to avoid accidental globbing in evaled expressions
+no_glob_subst='s/\*/\\\*/g'
+
+# Constants:
+rm="rm -f"
+
+# Global variables:
+default_ofile=libtool
+can_build_shared=yes
+
+# All known linkers require a `.a' archive for static linking (except M$VC,
+# which needs '.lib').
+libext=a
+ltmain="$ac_aux_dir/ltmain.sh"
+ofile="$default_ofile"
+with_gnu_ld="$lt_cv_prog_gnu_ld"
+
+AC_CHECK_TOOL(AR, ar, false)
+AC_CHECK_TOOL(RANLIB, ranlib, :)
+AC_CHECK_TOOL(STRIP, strip, :)
+
+old_CC="$CC"
+old_CFLAGS="$CFLAGS"
+
+# Set sane defaults for various variables
+test -z "$AR" && AR=ar
+test -z "$AR_FLAGS" && AR_FLAGS=cru
+test -z "$AS" && AS=as
+test -z "$CC" && CC=cc
+test -z "$LTCC" && LTCC=$CC
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+test -z "$LD" && LD=ld
+test -z "$LN_S" && LN_S="ln -s"
+test -z "$MAGIC_CMD" && MAGIC_CMD=file
+test -z "$NM" && NM=nm
+test -z "$SED" && SED=sed
+test -z "$OBJDUMP" && OBJDUMP=objdump
+test -z "$RANLIB" && RANLIB=:
+test -z "$STRIP" && STRIP=:
+test -z "$ac_objext" && ac_objext=o
+
+# Determine commands to create old-style static archives.
+old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs$old_deplibs'
+old_postinstall_cmds='chmod 644 $oldlib'
+old_postuninstall_cmds=
+
+if test -n "$RANLIB"; then
+  case $host_os in
+  openbsd*)
+    old_postinstall_cmds="\$RANLIB -t \$oldlib~$old_postinstall_cmds"
+    ;;
+  *)
+    old_postinstall_cmds="\$RANLIB \$oldlib~$old_postinstall_cmds"
+    ;;
+  esac
+  old_archive_cmds="$old_archive_cmds~\$RANLIB \$oldlib"
+fi
+
+# Only perform the check for file, if the check method requires it
+case $deplibs_check_method in
+file_magic*)
+  if test "$file_magic_cmd" = '$MAGIC_CMD'; then
+    AC_PATH_MAGIC
+  fi
+  ;;
+esac
+
+AC_PROVIDE_IFELSE([AC_LIBTOOL_DLOPEN], enable_dlopen=yes, enable_dlopen=no)
+AC_PROVIDE_IFELSE([AC_LIBTOOL_WIN32_DLL],
+enable_win32_dll=yes, enable_win32_dll=no)
+
+AC_ARG_ENABLE([libtool-lock],
+    [AC_HELP_STRING([--disable-libtool-lock],
+       [avoid locking (might break parallel builds)])])
+test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes
+
+AC_ARG_WITH([pic],
+    [AC_HELP_STRING([--with-pic],
+       [try to use only PIC/non-PIC objects @<:@default=use both@:>@])],
+    [pic_mode="$withval"],
+    [pic_mode=default])
+test -z "$pic_mode" && pic_mode=default
+
+# Use C for the default configuration in the libtool script
+tagname=
+AC_LIBTOOL_LANG_C_CONFIG
+_LT_AC_TAGCONFIG
+])# AC_LIBTOOL_SETUP
+
+
+# _LT_AC_SYS_COMPILER
+# -------------------
+AC_DEFUN([_LT_AC_SYS_COMPILER],
+[AC_REQUIRE([AC_PROG_CC])dnl
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+])# _LT_AC_SYS_COMPILER
+
+
+# _LT_AC_SYS_LIBPATH_AIX
+# ----------------------
+# Links a minimal program and checks the executable
+# for the system default hardcoded library path. In most cases,
+# this is /usr/lib:/lib, but when the MPI compilers are used
+# the location of the communication and MPI libs are included too.
+# If we don't find anything, use the default library path according
+# to the aix ld manual.
+AC_DEFUN([_LT_AC_SYS_LIBPATH_AIX],
+[AC_LINK_IFELSE(AC_LANG_PROGRAM,[
+aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
+}'`
+# Check for a 64-bit object if we didn't find anything.
+if test -z "$aix_libpath"; then aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
+}'`; fi],[])
+if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
+])# _LT_AC_SYS_LIBPATH_AIX
+
+
+# _LT_AC_SHELL_INIT(ARG)
+# ----------------------
+AC_DEFUN([_LT_AC_SHELL_INIT],
+[ifdef([AC_DIVERSION_NOTICE],
+            [AC_DIVERT_PUSH(AC_DIVERSION_NOTICE)],
+        [AC_DIVERT_PUSH(NOTICE)])
+$1
+AC_DIVERT_POP
+])# _LT_AC_SHELL_INIT
+
+
+# _LT_AC_PROG_ECHO_BACKSLASH
+# --------------------------
+# Add some code to the start of the generated configure script which
+# will find an echo command which doesn't interpret backslashes.
+AC_DEFUN([_LT_AC_PROG_ECHO_BACKSLASH],
+[_LT_AC_SHELL_INIT([
+# Check that we are running under the correct shell.
+SHELL=${CONFIG_SHELL-/bin/sh}
+
+case X$ECHO in
+X*--fallback-echo)
+  # Remove one level of quotation (which was required for Make).
+  ECHO=`echo "$ECHO" | sed 's,\\\\\[$]\\[$]0,'[$]0','`
+  ;;
+esac
+
+echo=${ECHO-echo}
+if test "X[$]1" = X--no-reexec; then
+  # Discard the --no-reexec flag, and continue.
+  shift
+elif test "X[$]1" = X--fallback-echo; then
+  # Avoid inline document here, it may be left over
+  :
+elif test "X`($echo '\t') 2>/dev/null`" = 'X\t' ; then
+  # Yippee, $echo works!
+  :
+else
+  # Restart under the correct shell.
+  exec $SHELL "[$]0" --no-reexec ${1+"[$]@"}
+fi
+
+if test "X[$]1" = X--fallback-echo; then
+  # used as fallback echo
+  shift
+  cat <<EOF
+[$]*
+EOF
+  exit 0
+fi
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+if test "X${CDPATH+set}" = Xset; then CDPATH=:; export CDPATH; fi
+
+if test -z "$ECHO"; then
+if test "X${echo_test_string+set}" != Xset; then
+# find a string as large as possible, as long as the shell can cope with it
+  for cmd in 'sed 50q "[$]0"' 'sed 20q "[$]0"' 'sed 10q "[$]0"' 'sed 2q "[$]0"' 'echo test'; do
+    # expected sizes: less than 2Kb, 1Kb, 512 bytes, 16 bytes, ...
+    if (echo_test_string="`eval $cmd`") 2>/dev/null &&
+       echo_test_string="`eval $cmd`" &&
+       (test "X$echo_test_string" = "X$echo_test_string") 2>/dev/null
+    then
+      break
+    fi
+  done
+fi
+
+if test "X`($echo '\t') 2>/dev/null`" = 'X\t' &&
+   echo_testing_string=`($echo "$echo_test_string") 2>/dev/null` &&
+   test "X$echo_testing_string" = "X$echo_test_string"; then
+  :
+else
+  # The Solaris, AIX, and Digital Unix default echo programs unquote
+  # backslashes.  This makes it impossible to quote backslashes using
+  #   echo "$something" | sed 's/\\/\\\\/g'
+  #
+  # So, first we look for a working echo in the user's PATH.
+
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  for dir in $PATH /usr/ucb; do
+    IFS="$lt_save_ifs"
+    if (test -f $dir/echo || test -f $dir/echo$ac_exeext) &&
+       test "X`($dir/echo '\t') 2>/dev/null`" = 'X\t' &&
+       echo_testing_string=`($dir/echo "$echo_test_string") 2>/dev/null` &&
+       test "X$echo_testing_string" = "X$echo_test_string"; then
+      echo="$dir/echo"
+      break
+    fi
+  done
+  IFS="$lt_save_ifs"
+
+  if test "X$echo" = Xecho; then
+    # We didn't find a better echo, so look for alternatives.
+    if test "X`(print -r '\t') 2>/dev/null`" = 'X\t' &&
+       echo_testing_string=`(print -r "$echo_test_string") 2>/dev/null` &&
+       test "X$echo_testing_string" = "X$echo_test_string"; then
+      # This shell has a builtin print -r that does the trick.
+      echo='print -r'
+    elif (test -f /bin/ksh || test -f /bin/ksh$ac_exeext) &&
+        test "X$CONFIG_SHELL" != X/bin/ksh; then
+      # If we have ksh, try running configure again with it.
+      ORIGINAL_CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
+      export ORIGINAL_CONFIG_SHELL
+      CONFIG_SHELL=/bin/ksh
+      export CONFIG_SHELL
+      exec $CONFIG_SHELL "[$]0" --no-reexec ${1+"[$]@"}
+    else
+      # Try using printf.
+      echo='printf %s\n'
+      if test "X`($echo '\t') 2>/dev/null`" = 'X\t' &&
+        echo_testing_string=`($echo "$echo_test_string") 2>/dev/null` &&
+        test "X$echo_testing_string" = "X$echo_test_string"; then
+       # Cool, printf works
+       :
+      elif echo_testing_string=`($ORIGINAL_CONFIG_SHELL "[$]0" --fallback-echo '\t') 2>/dev/null` &&
+          test "X$echo_testing_string" = 'X\t' &&
+          echo_testing_string=`($ORIGINAL_CONFIG_SHELL "[$]0" --fallback-echo "$echo_test_string") 2>/dev/null` &&
+          test "X$echo_testing_string" = "X$echo_test_string"; then
+       CONFIG_SHELL=$ORIGINAL_CONFIG_SHELL
+       export CONFIG_SHELL
+       SHELL="$CONFIG_SHELL"
+       export SHELL
+       echo="$CONFIG_SHELL [$]0 --fallback-echo"
+      elif echo_testing_string=`($CONFIG_SHELL "[$]0" --fallback-echo '\t') 2>/dev/null` &&
+          test "X$echo_testing_string" = 'X\t' &&
+          echo_testing_string=`($CONFIG_SHELL "[$]0" --fallback-echo "$echo_test_string") 2>/dev/null` &&
+          test "X$echo_testing_string" = "X$echo_test_string"; then
+       echo="$CONFIG_SHELL [$]0 --fallback-echo"
+      else
+       # maybe with a smaller string...
+       prev=:
+
+       for cmd in 'echo test' 'sed 2q "[$]0"' 'sed 10q "[$]0"' 'sed 20q "[$]0"' 'sed 50q "[$]0"'; do
+         if (test "X$echo_test_string" = "X`eval $cmd`") 2>/dev/null
+         then
+           break
+         fi
+         prev="$cmd"
+       done
+
+       if test "$prev" != 'sed 50q "[$]0"'; then
+         echo_test_string=`eval $prev`
+         export echo_test_string
+         exec ${ORIGINAL_CONFIG_SHELL-${CONFIG_SHELL-/bin/sh}} "[$]0" ${1+"[$]@"}
+       else
+         # Oops.  We lost completely, so just stick with echo.
+         echo=echo
+       fi
+      fi
+    fi
+  fi
+fi
+fi
+
+# Copy echo and quote the copy suitably for passing to libtool from
+# the Makefile, instead of quoting the original, which is used later.
+ECHO=$echo
+if test "X$ECHO" = "X$CONFIG_SHELL [$]0 --fallback-echo"; then
+   ECHO="$CONFIG_SHELL \\\$\[$]0 --fallback-echo"
+fi
+
+AC_SUBST(ECHO)
+])])# _LT_AC_PROG_ECHO_BACKSLASH
+
+
+# _LT_AC_LOCK
+# -----------
+AC_DEFUN([_LT_AC_LOCK],
+[AC_ARG_ENABLE([libtool-lock],
+    [AC_HELP_STRING([--disable-libtool-lock],
+       [avoid locking (might break parallel builds)])])
+test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes
+
+# Some flags need to be propagated to the compiler or linker for good
+# libtool support.
+case $host in
+ia64-*-hpux*)
+  # Find out which ABI we are using.
+  echo 'int i;' > conftest.$ac_ext
+  if AC_TRY_EVAL(ac_compile); then
+    case `/usr/bin/file conftest.$ac_objext` in
+    *ELF-32*)
+      HPUX_IA64_MODE="32"
+      ;;
+    *ELF-64*)
+      HPUX_IA64_MODE="64"
+      ;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+*-*-irix6*)
+  # Find out which ABI we are using.
+  echo '[#]line __oline__ "configure"' > conftest.$ac_ext
+  if AC_TRY_EVAL(ac_compile); then
+   if test "$lt_cv_prog_gnu_ld" = yes; then
+    case `/usr/bin/file conftest.$ac_objext` in
+    *32-bit*)
+      LD="${LD-ld} -melf32bsmip"
+      ;;
+    *N32*)
+      LD="${LD-ld} -melf32bmipn32"
+      ;;
+    *64-bit*)
+      LD="${LD-ld} -melf64bmip"
+      ;;
+    esac
+   else
+    case `/usr/bin/file conftest.$ac_objext` in
+    *32-bit*)
+      LD="${LD-ld} -32"
+      ;;
+    *N32*)
+      LD="${LD-ld} -n32"
+      ;;
+    *64-bit*)
+      LD="${LD-ld} -64"
+      ;;
+    esac
+   fi
+  fi
+  rm -rf conftest*
+  ;;
+
+x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*|s390*-*linux*|sparc*-*linux*)
+  # Find out which ABI we are using.
+  echo 'int i;' > conftest.$ac_ext
+  if AC_TRY_EVAL(ac_compile); then
+    case "`/usr/bin/file conftest.o`" in
+    *32-bit*)
+      case $host in
+        x86_64-*linux*)
+          LD="${LD-ld} -m elf_i386"
+          ;;
+        ppc64-*linux*)
+          LD="${LD-ld} -m elf32ppclinux"
+          ;;
+        s390x-*linux*)
+          LD="${LD-ld} -m elf_s390"
+          ;;
+        sparc64-*linux*)
+          LD="${LD-ld} -m elf32_sparc"
+          ;;
+      esac
+      ;;
+    *64-bit*)
+      case $host in
+        x86_64-*linux*)
+          LD="${LD-ld} -m elf_x86_64"
+          ;;
+        ppc*-*linux*|powerpc*-*linux*)
+          LD="${LD-ld} -m elf64ppc"
+          ;;
+        s390*-*linux*)
+          LD="${LD-ld} -m elf64_s390"
+          ;;
+        sparc*-*linux*)
+          LD="${LD-ld} -m elf64_sparc"
+          ;;
+      esac
+      ;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+
+*-*-sco3.2v5*)
+  # On SCO OpenServer 5, we need -belf to get full-featured binaries.
+  SAVE_CFLAGS="$CFLAGS"
+  CFLAGS="$CFLAGS -belf"
+  AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
+    [AC_LANG_PUSH(C)
+     AC_TRY_LINK([],[],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])
+     AC_LANG_POP])
+  if test x"$lt_cv_cc_needs_belf" != x"yes"; then
+    # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
+    CFLAGS="$SAVE_CFLAGS"
+  fi
+  ;;
+AC_PROVIDE_IFELSE([AC_LIBTOOL_WIN32_DLL],
+[*-*-cygwin* | *-*-mingw* | *-*-pw32*)
+  AC_CHECK_TOOL(DLLTOOL, dlltool, false)
+  AC_CHECK_TOOL(AS, as, false)
+  AC_CHECK_TOOL(OBJDUMP, objdump, false)
+  ;;
+  ])
+esac
+
+need_locks="$enable_libtool_lock"
+
+])# _LT_AC_LOCK
+
+
+# AC_LIBTOOL_COMPILER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,
+#              [OUTPUT-FILE], [ACTION-SUCCESS], [ACTION-FAILURE])
+# ----------------------------------------------------------------
+# Check whether the given compiler option works
+AC_DEFUN([AC_LIBTOOL_COMPILER_OPTION],
+[AC_CACHE_CHECK([$1], [$2],
+  [$2=no
+  ifelse([$4], , [ac_outfile=conftest.$ac_objext], [ac_outfile=$4])
+   printf "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="$3"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
+   -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:__oline__: $lt_compile\"" >&AS_MESSAGE_LOG_FD)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&AS_MESSAGE_LOG_FD
+   echo "$as_me:__oline__: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test ! -s conftest.err; then
+       $2=yes
+     fi
+   fi
+   $rm conftest*
+])
+
+if test x"[$]$2" = xyes; then
+    ifelse([$5], , :, [$5])
+else
+    ifelse([$6], , :, [$6])
+fi
+])# AC_LIBTOOL_COMPILER_OPTION
+
+
+# AC_LIBTOOL_LINKER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,
+#                          [ACTION-SUCCESS], [ACTION-FAILURE])
+# ------------------------------------------------------------
+# Check whether the given compiler option works
+AC_DEFUN([AC_LIBTOOL_LINKER_OPTION],
+[AC_CACHE_CHECK([$1], [$2],
+  [$2=no
+   save_LDFLAGS="$LDFLAGS"
+   LDFLAGS="$LDFLAGS $3"
+   printf "$lt_simple_link_test_code" > conftest.$ac_ext
+   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test -s conftest.err; then
+       # Append any errors to the config.log.
+       cat conftest.err 1>&AS_MESSAGE_LOG_FD
+     else
+       $2=yes
+     fi
+   fi
+   $rm conftest*
+   LDFLAGS="$save_LDFLAGS"
+])
+
+if test x"[$]$2" = xyes; then
+    ifelse([$4], , :, [$4])
+else
+    ifelse([$5], , :, [$5])
+fi
+])# AC_LIBTOOL_LINKER_OPTION
+
+
+# AC_LIBTOOL_SYS_MAX_CMD_LEN
+# --------------------------
+AC_DEFUN([AC_LIBTOOL_SYS_MAX_CMD_LEN],
+[# find the maximum length of command line arguments
+AC_MSG_CHECKING([the maximum length of command line arguments])
+AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl
+  i=0
+  testring="ABCD"
+
+  case $build_os in
+  msdosdjgpp*)
+    # On DJGPP, this test can blow up pretty badly due to problems in libc
+    # (any single argument exceeding 2000 bytes causes a buffer overrun
+    # during glob expansion).  Even if it were fixed, the result of this
+    # check would be larger than it should be.
+    lt_cv_sys_max_cmd_len=12288;    # 12K is about right
+    ;;
+
+  gnu*)
+    # Under GNU Hurd, this test is not required because there is
+    # no limit to the length of command line arguments.
+    # Libtool will interpret -1 as no limit whatsoever
+    lt_cv_sys_max_cmd_len=-1;
+    ;;
+
+  cygwin* | mingw*)
+    # On Win9x/ME, this test blows up -- it succeeds, but takes
+    # about 5 minutes as the teststring grows exponentially.
+    # Worse, since 9x/ME are not pre-emptively multitasking,
+    # you end up with a "frozen" computer, even though with patience
+    # the test eventually succeeds (with a max line length of 256k).
+    # Instead, let's just punt: use the minimum linelength reported by
+    # all of the supported platforms: 8192 (on NT/2K/XP).
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+ *)
+    # If test is not a shell built-in, we'll probably end up computing a
+    # maximum length that is only half of the actual maximum length, but
+    # we can't tell.
+    while (test "X"`$CONFIG_SHELL [$]0 --fallback-echo "X$testring" 2>/dev/null` \
+              = "XX$testring") >/dev/null 2>&1 &&
+           new_result=`expr "X$testring" : ".*" 2>&1` &&
+           lt_cv_sys_max_cmd_len=$new_result &&
+           test $i != 17 # 1/2 MB should be enough
+    do
+      i=`expr $i + 1`
+      testring=$testring$testring
+    done
+    testring=
+    # Add a significant safety factor because C++ compilers can tack on massive
+    # amounts of additional arguments before passing them to the linker.
+    # It appears as though 1/2 is a usable value.
+    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`
+    ;;
+  esac
+])
+if test -n $lt_cv_sys_max_cmd_len ; then
+  AC_MSG_RESULT($lt_cv_sys_max_cmd_len)
+else
+  AC_MSG_RESULT(none)
+fi
+])# AC_LIBTOOL_SYS_MAX_CMD_LEN
+
+
+# _LT_AC_CHECK_DLFCN
+# --------------------
+AC_DEFUN([_LT_AC_CHECK_DLFCN],
+[AC_CHECK_HEADERS(dlfcn.h)dnl
+])# _LT_AC_CHECK_DLFCN
+
+
+# _LT_AC_TRY_DLOPEN_SELF (ACTION-IF-TRUE, ACTION-IF-TRUE-W-USCORE,
+#                           ACTION-IF-FALSE, ACTION-IF-CROSS-COMPILING)
+# ------------------------------------------------------------------
+AC_DEFUN([_LT_AC_TRY_DLOPEN_SELF],
+[AC_REQUIRE([_LT_AC_CHECK_DLFCN])dnl
+if test "$cross_compiling" = yes; then :
+  [$4]
+else
+  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+  lt_status=$lt_dlunknown
+  cat > conftest.$ac_ext <<EOF
+[#line __oline__ "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+#  define LT_DLGLOBAL          RTLD_GLOBAL
+#else
+#  ifdef DL_GLOBAL
+#    define LT_DLGLOBAL                DL_GLOBAL
+#  else
+#    define LT_DLGLOBAL                0
+#  endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+#  ifdef RTLD_LAZY
+#    define LT_DLLAZY_OR_NOW           RTLD_LAZY
+#  else
+#    ifdef DL_LAZY
+#      define LT_DLLAZY_OR_NOW         DL_LAZY
+#    else
+#      ifdef RTLD_NOW
+#        define LT_DLLAZY_OR_NOW       RTLD_NOW
+#      else
+#        ifdef DL_NOW
+#          define LT_DLLAZY_OR_NOW     DL_NOW
+#        else
+#          define LT_DLLAZY_OR_NOW     0
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+#ifdef __cplusplus
+extern "C" void exit (int);
+#endif
+
+void fnord() { int i=42;}
+int main ()
+{
+  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+  int status = $lt_dlunknown;
+
+  if (self)
+    {
+      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
+      else if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;
+      /* dlclose (self); */
+    }
+
+    exit (status);
+}]
+EOF
+  if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext} 2>/dev/null; then
+    (./conftest; exit; ) 2>/dev/null
+    lt_status=$?
+    case x$lt_status in
+      x$lt_dlno_uscore) $1 ;;
+      x$lt_dlneed_uscore) $2 ;;
+      x$lt_unknown|x*) $3 ;;
+    esac
+  else :
+    # compilation failed
+    $3
+  fi
+fi
+rm -fr conftest*
+])# _LT_AC_TRY_DLOPEN_SELF
+
+
+# AC_LIBTOOL_DLOPEN_SELF
+# -------------------
+AC_DEFUN([AC_LIBTOOL_DLOPEN_SELF],
+[AC_REQUIRE([_LT_AC_CHECK_DLFCN])dnl
+if test "x$enable_dlopen" != xyes; then
+  enable_dlopen=unknown
+  enable_dlopen_self=unknown
+  enable_dlopen_self_static=unknown
+else
+  lt_cv_dlopen=no
+  lt_cv_dlopen_libs=
+
+  case $host_os in
+  beos*)
+    lt_cv_dlopen="load_add_on"
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+    ;;
+
+  mingw* | pw32*)
+    lt_cv_dlopen="LoadLibrary"
+    lt_cv_dlopen_libs=
+   ;;
+
+  cygwin*)
+    lt_cv_dlopen="dlopen"
+    lt_cv_dlopen_libs=
+   ;;
+
+  darwin*)
+  # if libdl is installed we need to link against it
+    AC_CHECK_LIB([dl], [dlopen],
+               [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"],[
+    lt_cv_dlopen="dyld"
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+    ])
+   ;;
+    
+  *)
+    AC_CHECK_FUNC([shl_load],
+         [lt_cv_dlopen="shl_load"],
+      [AC_CHECK_LIB([dld], [shl_load],
+           [lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-dld"],
+       [AC_CHECK_FUNC([dlopen],
+             [lt_cv_dlopen="dlopen"],
+         [AC_CHECK_LIB([dl], [dlopen],
+               [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"],
+           [AC_CHECK_LIB([svld], [dlopen],
+                 [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld"],
+             [AC_CHECK_LIB([dld], [dld_link],
+                   [lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-dld"])
+             ])
+           ])
+         ])
+       ])
+      ])
+    ;;
+  esac
+
+  if test "x$lt_cv_dlopen" != xno; then
+    enable_dlopen=yes
+  else
+    enable_dlopen=no
+  fi
+
+  case $lt_cv_dlopen in
+  dlopen)
+    save_CPPFLAGS="$CPPFLAGS"
+    test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
+
+    save_LDFLAGS="$LDFLAGS"
+    eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
+
+    save_LIBS="$LIBS"
+    LIBS="$lt_cv_dlopen_libs $LIBS"
+
+    AC_CACHE_CHECK([whether a program can dlopen itself],
+         lt_cv_dlopen_self, [dnl
+         _LT_AC_TRY_DLOPEN_SELF(
+           lt_cv_dlopen_self=yes, lt_cv_dlopen_self=yes,
+           lt_cv_dlopen_self=no, lt_cv_dlopen_self=cross)
+    ])
+
+    if test "x$lt_cv_dlopen_self" = xyes; then
+      LDFLAGS="$LDFLAGS $link_static_flag"
+      AC_CACHE_CHECK([whether a statically linked program can dlopen itself],
+         lt_cv_dlopen_self_static, [dnl
+         _LT_AC_TRY_DLOPEN_SELF(
+           lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=yes,
+           lt_cv_dlopen_self_static=no,  lt_cv_dlopen_self_static=cross)
+      ])
+    fi
+
+    CPPFLAGS="$save_CPPFLAGS"
+    LDFLAGS="$save_LDFLAGS"
+    LIBS="$save_LIBS"
+    ;;
+  esac
+
+  case $lt_cv_dlopen_self in
+  yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
+  *) enable_dlopen_self=unknown ;;
+  esac
+
+  case $lt_cv_dlopen_self_static in
+  yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
+  *) enable_dlopen_self_static=unknown ;;
+  esac
+fi
+])# AC_LIBTOOL_DLOPEN_SELF
+
+
+# AC_LIBTOOL_PROG_CC_C_O([TAGNAME])
+# ---------------------------------
+# Check to see if options -c and -o are simultaneously supported by compiler
+AC_DEFUN([AC_LIBTOOL_PROG_CC_C_O],
+[AC_REQUIRE([_LT_AC_SYS_COMPILER])dnl
+AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext],
+  [_LT_AC_TAGVAR(lt_cv_prog_compiler_c_o, $1)],
+  [_LT_AC_TAGVAR(lt_cv_prog_compiler_c_o, $1)=no
+   $rm -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   printf "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   # According to Tom Tromey, Ian Lance Taylor reported there are C compilers
+   # that will create temporary files in the current directory regardless of
+   # the output directory.  Thus, making CWD read-only will cause this test
+   # to fail, enabling locking or at least warning the user not to do parallel
+   # builds.
+   chmod -w .
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
+   -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:__oline__: $lt_compile\"" >&AS_MESSAGE_LOG_FD)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&AS_MESSAGE_LOG_FD
+   echo "$as_me:__oline__: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test ! -s out/conftest.err; then
+       _LT_AC_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes
+     fi
+   fi
+   chmod u+w .
+   $rm conftest* out/*
+   rmdir out
+   cd ..
+   rmdir conftest
+   $rm conftest*
+])
+])# AC_LIBTOOL_PROG_CC_C_O
+
+
+# AC_LIBTOOL_SYS_HARD_LINK_LOCKS([TAGNAME])
+# -----------------------------------------
+# Check to see if we can do hard links to lock some files if needed
+AC_DEFUN([AC_LIBTOOL_SYS_HARD_LINK_LOCKS],
+[AC_REQUIRE([_LT_AC_LOCK])dnl
+
+hard_links="nottested"
+if test "$_LT_AC_TAGVAR(lt_cv_prog_compiler_c_o, $1)" = no && test "$need_locks" != no; then
+  # do not overwrite the value of need_locks provided by the user
+  AC_MSG_CHECKING([if we can lock with hard links])
+  hard_links=yes
+  $rm conftest*
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  touch conftest.a
+  ln conftest.a conftest.b 2>&5 || hard_links=no
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  AC_MSG_RESULT([$hard_links])
+  if test "$hard_links" = no; then
+    AC_MSG_WARN([`$CC' does not support `-c -o', so `make -j' may be unsafe])
+    need_locks=warn
+  fi
+else
+  need_locks=no
+fi
+])# AC_LIBTOOL_SYS_HARD_LINK_LOCKS
+
+
+# AC_LIBTOOL_OBJDIR
+# -----------------
+AC_DEFUN([AC_LIBTOOL_OBJDIR],
+[AC_CACHE_CHECK([for objdir], [lt_cv_objdir],
+[rm -f .libs 2>/dev/null
+mkdir .libs 2>/dev/null
+if test -d .libs; then
+  lt_cv_objdir=.libs
+else
+  # MS-DOS does not allow filenames that begin with a dot.
+  lt_cv_objdir=_libs
+fi
+rmdir .libs 2>/dev/null])
+objdir=$lt_cv_objdir
+])# AC_LIBTOOL_OBJDIR
+
+
+# AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH([TAGNAME])
+# ----------------------------------------------
+# Check hardcoding attributes.
+AC_DEFUN([AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH],
+[AC_MSG_CHECKING([how to hardcode library paths into programs])
+_LT_AC_TAGVAR(hardcode_action, $1)=
+if test -n "$_LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)" || \
+   test -n "$_LT_AC_TAGVAR(runpath_var $1)" || \
+   test "X$_LT_AC_TAGVAR(hardcode_automatic, $1)"="Xyes" ; then
+
+  # We can hardcode non-existant directories.
+  if test "$_LT_AC_TAGVAR(hardcode_direct, $1)" != no &&
+     # If the only mechanism to avoid hardcoding is shlibpath_var, we
+     # have to relink, otherwise we might link with an installed library
+     # when we should be linking with a yet-to-be-installed one
+     ## test "$_LT_AC_TAGVAR(hardcode_shlibpath_var, $1)" != no &&
+     test "$_LT_AC_TAGVAR(hardcode_minus_L, $1)" != no; then
+    # Linking always hardcodes the temporary library directory.
+    _LT_AC_TAGVAR(hardcode_action, $1)=relink
+  else
+    # We can link without hardcoding, and we can hardcode nonexisting dirs.
+    _LT_AC_TAGVAR(hardcode_action, $1)=immediate
+  fi
+else
+  # We cannot hardcode anything, or else we can only hardcode existing
+  # directories.
+  _LT_AC_TAGVAR(hardcode_action, $1)=unsupported
+fi
+AC_MSG_RESULT([$_LT_AC_TAGVAR(hardcode_action, $1)])
+
+if test "$_LT_AC_TAGVAR(hardcode_action, $1)" = relink; then
+  # Fast installation is not supported
+  enable_fast_install=no
+elif test "$shlibpath_overrides_runpath" = yes ||
+     test "$enable_shared" = no; then
+  # Fast installation is not necessary
+  enable_fast_install=needless
+fi
+])# AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH
+
+
+# AC_LIBTOOL_SYS_LIB_STRIP
+# ------------------------
+AC_DEFUN([AC_LIBTOOL_SYS_LIB_STRIP],
+[striplib=
+old_striplib=
+AC_MSG_CHECKING([whether stripping libraries is possible])
+if test -n "$STRIP" && $STRIP -V 2>&1 | grep "GNU strip" >/dev/null; then
+  test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
+  test -z "$striplib" && striplib="$STRIP --strip-unneeded"
+  AC_MSG_RESULT([yes])
+else
+# FIXME - insert some real tests, host_os isn't really good enough
+  case $host_os in
+   darwin*)
+       if test -n "$STRIP" ; then
+         striplib="$STRIP -x"
+         AC_MSG_RESULT([yes])
+       else
+  AC_MSG_RESULT([no])
+fi
+       ;;
+   *)
+  AC_MSG_RESULT([no])
+    ;;
+  esac  
+fi
+])# AC_LIBTOOL_SYS_LIB_STRIP
+
+
+# AC_LIBTOOL_SYS_DYNAMIC_LINKER
+# -----------------------------
+# PORTME Fill in your ld.so characteristics
+AC_DEFUN([AC_LIBTOOL_SYS_DYNAMIC_LINKER],
+[AC_MSG_CHECKING([dynamic linker characteristics])
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+shrext=".so"
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+if test "$GCC" = yes; then
+  sys_lib_search_path_spec=`$CC -print-search-dirs | grep "^libraries:" | $SED -e "s/^libraries://" -e "s,=/,/,g"`
+  if echo "$sys_lib_search_path_spec" | grep ';' >/dev/null ; then
+    # if the path contains ";" then we assume it to be the separator
+    # otherwise default to the standard path separator (i.e. ":") - it is
+    # assumed that no part of a normal pathname contains ";" but that should
+    # okay in the real world where ";" in dirpaths is itself problematic.
+    sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+  else
+    sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED  -e "s/$PATH_SEPARATOR/ /g"`
+  fi
+else
+  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+fi
+need_lib_prefix=unknown
+hardcode_into_libs=no
+
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+need_version=unknown
+
+case $host_os in
+aix3*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
+  shlibpath_var=LIBPATH
+
+  # AIX 3 has no versioning support, so we append a major version to the name.
+  soname_spec='${libname}${release}${shared_ext}$major'
+  ;;
+
+aix4* | aix5*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  hardcode_into_libs=yes
+  if test "$host_cpu" = ia64; then
+    # AIX 5 supports IA64
+    library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}'
+    shlibpath_var=LD_LIBRARY_PATH
+  else
+    # With GCC up to 2.95.x, collect2 would create an import file
+    # for dependence libraries.  The import file would start with
+    # the line `#! .'.  This would cause the generated library to
+    # depend on `.', always an invalid library.  This was fixed in
+    # development snapshots of GCC prior to 3.0.
+    case $host_os in
+      aix4 | aix4.[[01]] | aix4.[[01]].*)
+      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
+          echo ' yes '
+          echo '#endif'; } | ${CC} -E - | grep yes > /dev/null; then
+       :
+      else
+       can_build_shared=no
+      fi
+      ;;
+    esac
+    # AIX (on Power*) has no versioning support, so currently we can not hardcode correct
+    # soname into executable. Probably we can add versioning support to
+    # collect2, so additional links can be useful in future.
+    if test "$aix_use_runtimelinking" = yes; then
+      # If using run time linking (on AIX 4.2 or later) use lib<name>.so
+      # instead of lib<name>.a to let people know that these are not
+      # typical AIX shared libraries.
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    else
+      # We preserve .a as extension for shared libraries through AIX4.2
+      # and later when we are not doing run time linking.
+      library_names_spec='${libname}${release}.a $libname.a'
+      soname_spec='${libname}${release}${shared_ext}$major'
+    fi
+    shlibpath_var=LIBPATH
+  fi
+  ;;
+
+amigaos*)
+  library_names_spec='$libname.ixlibrary $libname.a'
+  # Create ${libname}_ixlibrary.a entries in /sys/libs.
+  finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`$echo "X$lib" | $Xsed -e '\''s%^.*/\([[^/]]*\)\.ixlibrary$%\1%'\''`; test $rm /sys/libs/${libname}_ixlibrary.a; $show "(cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a)"; (cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a) || exit 1; done'
+  ;;
+
+beos*)
+  library_names_spec='${libname}${shared_ext}'
+  dynamic_linker="$host_os ld.so"
+  shlibpath_var=LIBRARY_PATH
+  ;;
+
+bsdi4*)
+  version_type=linux
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+  # the default ld.so.conf also contains /usr/contrib/lib and
+  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+  # libtool to hard-code these into programs
+  ;;
+
+cygwin* | mingw* | pw32*)
+  version_type=windows
+  shrext=".dll"
+  need_version=no
+  need_lib_prefix=no
+
+  case $GCC,$host_os in
+  yes,cygwin* | yes,mingw* | yes,pw32*)
+    library_names_spec='$libname.dll.a'
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \${file}`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i;echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $rm \$dlpath'
+    shlibpath_overrides_runpath=yes
+
+    case $host_os in
+    cygwin*)
+      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
+      soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
+      sys_lib_search_path_spec="/lib /lib/w32api /usr/lib /usr/local/lib"
+      ;;
+    mingw*)
+      # MinGW DLLs use traditional 'lib' prefix
+      soname_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
+      sys_lib_search_path_spec=`$CC -print-search-dirs | grep "^libraries:" | $SED -e "s/^libraries://" -e "s,=/,/,g"`
+      if echo "$sys_lib_search_path_spec" | [grep ';[c-zC-Z]:/' >/dev/null]; then
+        # It is most probably a Windows format PATH printed by
+        # mingw gcc, but we are running on Cygwin. Gcc prints its search
+        # path with ; separators, and with drive letters. We can handle the
+        # drive letters (cygwin fileutils understands them), so leave them,
+        # especially as we might pass files found there to a mingw objdump,
+        # which wouldn't understand a cygwinified path. Ahh.
+        sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+      else
+        sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED  -e "s/$PATH_SEPARATOR/ /g"`
+      fi
+      ;;
+    pw32*)
+      # pw32 DLLs use 'pw' prefix rather than 'lib'
+      library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+      ;;
+    esac
+    ;;
+
+  *)
+    library_names_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext} $libname.lib'
+    ;;
+  esac
+  dynamic_linker='Win32 ld.exe'
+  # FIXME: first we should search . and the directory the executable is in
+  shlibpath_var=PATH
+  ;;
+
+darwin* | rhapsody*)
+  dynamic_linker="$host_os dyld"
+  version_type=darwin
+  need_lib_prefix=no
+  need_version=no
+  # FIXME: Relying on posixy $() will cause problems for
+  #        cross-compilation, but unfortunately the echo tests do not
+  #        yet detect zsh echo's removal of \ escapes.
+  library_names_spec='${libname}${release}${versuffix}$shared_ext ${libname}${release}${major}$shared_ext ${libname}$shared_ext'
+  soname_spec='${libname}${release}${major}$shared_ext'
+  shlibpath_overrides_runpath=yes
+  shlibpath_var=DYLD_LIBRARY_PATH
+  shrext='$(test .$module = .yes && echo .so || echo .dylib)'
+  # Apple's gcc prints 'gcc -print-search-dirs' doesn't operate the same.
+  if $CC -v 2>&1 | grep 'Apple' >/dev/null ; then 
+  sys_lib_search_path_spec=`$CC -print-search-dirs | tr "\n" "$PATH_SEPARATOR" | sed -e 's/libraries:/@libraries:/' | tr "@" "\n" | grep "^libraries:" | sed -e "s/^libraries://" -e "s,=/,/,g" -e "s,$PATH_SEPARATOR, ,g" -e "s,.*,& /lib /usr/lib /usr/local/lib,g"`
+  fi
+  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
+  ;;
+
+dgux*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+freebsd1*)
+  dynamic_linker=no
+  ;;
+
+freebsd*)
+  objformat=`test -x /usr/bin/objformat && /usr/bin/objformat || echo aout`
+  version_type=freebsd-$objformat
+  case $version_type in
+    freebsd-elf*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
+      need_version=no
+      need_lib_prefix=no
+      ;;
+    freebsd-*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix'
+      need_version=yes
+      ;;
+  esac
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_os in
+  freebsd2*)
+    shlibpath_overrides_runpath=yes
+    ;;
+  freebsd3.[01]* | freebsdelf3.[01]*)
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  *) # from 3.2 on
+    shlibpath_overrides_runpath=no
+    hardcode_into_libs=yes
+    ;;
+  esac
+  ;;
+
+gnu*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  hardcode_into_libs=yes
+  ;;
+
+hpux9* | hpux10* | hpux11*)
+  # Give a soname corresponding to the major version so that dld.sl refuses to
+  # link against other versions.
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  case "$host_cpu" in
+  ia64*)
+    shrext='.so'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.so"
+    shlibpath_var=LD_LIBRARY_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    if test "X$HPUX_IA64_MODE" = X32; then
+      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+    else
+      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+    fi
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+   hppa*64*)
+     shrext='.sl'
+     hardcode_into_libs=yes
+     dynamic_linker="$host_os dld.sl"
+     shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
+     shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+     library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+     soname_spec='${libname}${release}${shared_ext}$major'
+     sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
+     sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+     ;;
+   *)
+    shrext='.sl'
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=SHLIB_PATH
+    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    ;;
+  esac
+  # HP-UX runs *really* slowly unless shared libraries are mode 555.
+  postinstall_cmds='chmod 555 $lib'
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $host_os in
+    nonstopux*) version_type=nonstopux ;;
+    *)
+       if test "$lt_cv_prog_gnu_ld" = yes; then
+               version_type=linux
+       else
+               version_type=irix
+       fi ;;
+  esac
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}'
+  case $host_os in
+  irix5* | nonstopux*)
+    libsuff= shlibsuff=
+    ;;
+  *)
+    case $LD in # libtool.m4 will add one of these switches to LD
+    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
+      libsuff= shlibsuff= libmagic=32-bit;;
+    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
+      libsuff=32 shlibsuff=N32 libmagic=N32;;
+    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
+      libsuff=64 shlibsuff=64 libmagic=64-bit;;
+    *) libsuff= shlibsuff= libmagic=never-match;;
+    esac
+    ;;
+  esac
+  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
+  sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
+  hardcode_into_libs=yes
+  ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux*oldld* | linux*aout* | linux*coff*)
+  dynamic_linker=no
+  ;;
+
+# This must be Linux ELF.
+linux*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  # We used to test for /lib/ld.so.1 and disable shared libraries on
+  # powerpc, because MkLinux only supported shared libraries with the
+  # GNU dynamic linker.  Since this was broken with cross compilers,
+  # most powerpc-linux boxes support dynamic linking these days and
+  # people can always --disable-shared, the test was removed, and we
+  # assume the GNU/Linux dynamic linker is in use.
+  dynamic_linker='GNU/Linux ld.so'
+
+  # Find out which ABI we are using (multilib Linux x86_64 hack).
+  libsuff=
+  case "$host_cpu" in
+  x86_64*|s390x*)
+    echo '[#]line __oline__ "configure"' > conftest.$ac_ext
+    if AC_TRY_EVAL(ac_compile); then
+      case `/usr/bin/file conftest.$ac_objext` in
+      *64-bit*)
+        libsuff=64
+        ;;
+      esac
+    fi
+    rm -rf conftest*
+    ;;
+  *)
+    ;;
+  esac
+  sys_lib_dlsearch_path_spec="/lib${libsuff} /usr/lib${libsuff}"
+  sys_lib_search_path_spec="/lib${libsuff} /usr/lib${libsuff} /usr/local/lib${libsuff}"
+  ;;
+
+netbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+    dynamic_linker='NetBSD (a.out) ld.so'
+  else
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} ${libname}${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    dynamic_linker='NetBSD ld.elf_so'
+  fi
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  ;;
+
+newsos6)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+nto-qnx)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+openbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+    case $host_os in
+      openbsd2.[[89]] | openbsd2.[[89]].*)
+       shlibpath_overrides_runpath=no
+       ;;
+      *)
+       shlibpath_overrides_runpath=yes
+       ;;
+      esac
+  else
+    shlibpath_overrides_runpath=yes
+  fi
+  ;;
+
+os2*)
+  libname_spec='$name'
+  shrext=".dll"
+  need_lib_prefix=no
+  library_names_spec='$libname${shared_ext} $libname.a'
+  dynamic_linker='OS/2 ld.exe'
+  shlibpath_var=LIBPATH
+  ;;
+
+osf3* | osf4* | osf5*)
+  version_type=osf
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+  sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
+  ;;
+
+sco3.2v5*)
+  version_type=osf
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+solaris*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  # ldd complains unless libraries are executable
+  postinstall_cmds='chmod +x $lib'
+  ;;
+
+sunos4*)
+  version_type=sunos
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  if test "$with_gnu_ld" = yes; then
+    need_lib_prefix=no
+  fi
+  need_version=yes
+  ;;
+
+sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_vendor in
+    sni)
+      shlibpath_overrides_runpath=no
+      need_lib_prefix=no
+      export_dynamic_flag_spec='${wl}-Blargedynsym'
+      runpath_var=LD_RUN_PATH
+      ;;
+    siemens)
+      need_lib_prefix=no
+      ;;
+    motorola)
+      need_lib_prefix=no
+      need_version=no
+      shlibpath_overrides_runpath=no
+      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+      ;;
+  esac
+  ;;
+
+sysv4*MP*)
+  if test -d /usr/nec ;then
+    version_type=linux
+    library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
+    soname_spec='$libname${shared_ext}.$major'
+    shlibpath_var=LD_LIBRARY_PATH
+  fi
+  ;;
+
+uts4*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+*)
+  dynamic_linker=no
+  ;;
+esac
+AC_MSG_RESULT([$dynamic_linker])
+test "$dynamic_linker" = no && can_build_shared=no
+])# AC_LIBTOOL_SYS_DYNAMIC_LINKER
+
+
+# _LT_AC_TAGCONFIG
+# ----------------
+AC_DEFUN([_LT_AC_TAGCONFIG],
+[AC_ARG_WITH([tags],
+    [AC_HELP_STRING([--with-tags@<:@=TAGS@:>@],
+        [include additional configurations @<:@automatic@:>@])],
+    [tagnames="$withval"])
+
+if test -f "$ltmain" && test -n "$tagnames"; then
+  if test ! -f "${ofile}"; then
+    AC_MSG_WARN([output file `$ofile' does not exist])
+  fi
+
+  if test -z "$LTCC"; then
+    eval "`$SHELL ${ofile} --config | grep '^LTCC='`"
+    if test -z "$LTCC"; then
+      AC_MSG_WARN([output file `$ofile' does not look like a libtool script])
+    else
+      AC_MSG_WARN([using `LTCC=$LTCC', extracted from `$ofile'])
+    fi
+  fi
+
+  # Extract list of available tagged configurations in $ofile.
+  # Note that this assumes the entire list is on one line.
+  available_tags=`grep "^available_tags=" "${ofile}" | $SED -e 's/available_tags=\(.*$\)/\1/' -e 's/\"//g'`
+
+  lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+  for tagname in $tagnames; do
+    IFS="$lt_save_ifs"
+    # Check whether tagname contains only valid characters
+    case `$echo "X$tagname" | $Xsed -e 's:[[-_ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890,/]]::g'` in
+    "") ;;
+    *)  AC_MSG_ERROR([invalid tag name: $tagname])
+       ;;
+    esac
+
+    if grep "^# ### BEGIN LIBTOOL TAG CONFIG: $tagname$" < "${ofile}" > /dev/null
+    then
+      AC_MSG_ERROR([tag name \"$tagname\" already exists])
+    fi
+
+    # Update the list of available tags.
+    if test -n "$tagname"; then
+      echo appending configuration tag \"$tagname\" to $ofile
+
+      case $tagname in
+      CXX)
+       if test -n "$CXX" && test "X$CXX" != "Xno"; then
+         AC_LIBTOOL_LANG_CXX_CONFIG
+       else
+         tagname=""
+       fi
+       ;;
+
+      F77)
+       if test -n "$F77" && test "X$F77" != "Xno"; then
+         AC_LIBTOOL_LANG_F77_CONFIG
+       else
+         tagname=""
+       fi
+       ;;
+
+      GCJ)
+       if test -n "$GCJ" && test "X$GCJ" != "Xno"; then
+         AC_LIBTOOL_LANG_GCJ_CONFIG
+       else
+         tagname=""
+       fi
+       ;;
+
+      RC)
+       AC_LIBTOOL_LANG_RC_CONFIG
+       ;;
+
+      *)
+       AC_MSG_ERROR([Unsupported tag name: $tagname])
+       ;;
+      esac
+
+      # Append the new tag name to the list of available tags.
+      if test -n "$tagname" ; then
+      available_tags="$available_tags $tagname"
+    fi
+    fi
+  done
+  IFS="$lt_save_ifs"
+
+  # Now substitute the updated list of available tags.
+  if eval "sed -e 's/^available_tags=.*\$/available_tags=\"$available_tags\"/' \"$ofile\" > \"${ofile}T\""; then
+    mv "${ofile}T" "$ofile"
+    chmod +x "$ofile"
+  else
+    rm -f "${ofile}T"
+    AC_MSG_ERROR([unable to update list of available tagged configurations.])
+  fi
+fi
+])# _LT_AC_TAGCONFIG
+
+
+# AC_LIBTOOL_DLOPEN
+# -----------------
+# enable checks for dlopen support
+AC_DEFUN([AC_LIBTOOL_DLOPEN],
+ [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])
+])# AC_LIBTOOL_DLOPEN
+
+
+# AC_LIBTOOL_WIN32_DLL
+# --------------------
+# declare package support for building win32 dll's
+AC_DEFUN([AC_LIBTOOL_WIN32_DLL],
+[AC_BEFORE([$0], [AC_LIBTOOL_SETUP])
+])# AC_LIBTOOL_WIN32_DLL
+
+
+# AC_ENABLE_SHARED([DEFAULT])
+# ---------------------------
+# implement the --enable-shared flag
+# DEFAULT is either `yes' or `no'.  If omitted, it defaults to `yes'.
+AC_DEFUN([AC_ENABLE_SHARED],
+[define([AC_ENABLE_SHARED_DEFAULT], ifelse($1, no, no, yes))dnl
+AC_ARG_ENABLE([shared],
+    [AC_HELP_STRING([--enable-shared@<:@=PKGS@:>@],
+       [build shared libraries @<:@default=]AC_ENABLE_SHARED_DEFAULT[@:>@])],
+    [p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_shared=yes ;;
+    no) enable_shared=no ;;
+    *)
+      enable_shared=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for pkg in $enableval; do
+       IFS="$lt_save_ifs"
+       if test "X$pkg" = "X$p"; then
+         enable_shared=yes
+       fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac],
+    [enable_shared=]AC_ENABLE_SHARED_DEFAULT)
+])# AC_ENABLE_SHARED
+
+
+# AC_DISABLE_SHARED
+# -----------------
+#- set the default shared flag to --disable-shared
+AC_DEFUN([AC_DISABLE_SHARED],
+[AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
+AC_ENABLE_SHARED(no)
+])# AC_DISABLE_SHARED
+
+
+# AC_ENABLE_STATIC([DEFAULT])
+# ---------------------------
+# implement the --enable-static flag
+# DEFAULT is either `yes' or `no'.  If omitted, it defaults to `yes'.
+AC_DEFUN([AC_ENABLE_STATIC],
+[define([AC_ENABLE_STATIC_DEFAULT], ifelse($1, no, no, yes))dnl
+AC_ARG_ENABLE([static],
+    [AC_HELP_STRING([--enable-static@<:@=PKGS@:>@],
+       [build static libraries @<:@default=]AC_ENABLE_STATIC_DEFAULT[@:>@])],
+    [p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_static=yes ;;
+    no) enable_static=no ;;
+    *)
+     enable_static=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for pkg in $enableval; do
+       IFS="$lt_save_ifs"
+       if test "X$pkg" = "X$p"; then
+         enable_static=yes
+       fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac],
+    [enable_static=]AC_ENABLE_STATIC_DEFAULT)
+])# AC_ENABLE_STATIC
+
+
+# AC_DISABLE_STATIC
+# -----------------
+# set the default static flag to --disable-static
+AC_DEFUN([AC_DISABLE_STATIC],
+[AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
+AC_ENABLE_STATIC(no)
+])# AC_DISABLE_STATIC
+
+
+# AC_ENABLE_FAST_INSTALL([DEFAULT])
+# ---------------------------------
+# implement the --enable-fast-install flag
+# DEFAULT is either `yes' or `no'.  If omitted, it defaults to `yes'.
+AC_DEFUN([AC_ENABLE_FAST_INSTALL],
+[define([AC_ENABLE_FAST_INSTALL_DEFAULT], ifelse($1, no, no, yes))dnl
+AC_ARG_ENABLE([fast-install],
+    [AC_HELP_STRING([--enable-fast-install@<:@=PKGS@:>@],
+    [optimize for fast installation @<:@default=]AC_ENABLE_FAST_INSTALL_DEFAULT[@:>@])],
+    [p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_fast_install=yes ;;
+    no) enable_fast_install=no ;;
+    *)
+      enable_fast_install=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for pkg in $enableval; do
+       IFS="$lt_save_ifs"
+       if test "X$pkg" = "X$p"; then
+         enable_fast_install=yes
+       fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac],
+    [enable_fast_install=]AC_ENABLE_FAST_INSTALL_DEFAULT)
+])# AC_ENABLE_FAST_INSTALL
+
+
+# AC_DISABLE_FAST_INSTALL
+# -----------------------
+# set the default to --disable-fast-install
+AC_DEFUN([AC_DISABLE_FAST_INSTALL],
+[AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
+AC_ENABLE_FAST_INSTALL(no)
+])# AC_DISABLE_FAST_INSTALL
+
+
+# AC_LIBTOOL_PICMODE([MODE])
+# --------------------------
+# implement the --with-pic flag
+# MODE is either `yes' or `no'.  If omitted, it defaults to `both'.
+AC_DEFUN([AC_LIBTOOL_PICMODE],
+[AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
+pic_mode=ifelse($#,1,$1,default)
+])# AC_LIBTOOL_PICMODE
+
+
+# AC_PROG_EGREP
+# -------------
+# This is predefined starting with Autoconf 2.54, so this conditional
+# definition can be removed once we require Autoconf 2.54 or later.
+m4_ifndef([AC_PROG_EGREP], [AC_DEFUN([AC_PROG_EGREP],
+[AC_CACHE_CHECK([for egrep], [ac_cv_prog_egrep],
+   [if echo a | (grep -E '(a|b)') >/dev/null 2>&1
+    then ac_cv_prog_egrep='grep -E'
+    else ac_cv_prog_egrep='egrep'
+    fi])
+ EGREP=$ac_cv_prog_egrep
+ AC_SUBST([EGREP])
+])])
+
+
+# AC_PATH_TOOL_PREFIX
+# -------------------
+# find a file program which can recognise shared library
+AC_DEFUN([AC_PATH_TOOL_PREFIX],
+[AC_REQUIRE([AC_PROG_EGREP])dnl
+AC_MSG_CHECKING([for $1])
+AC_CACHE_VAL(lt_cv_path_MAGIC_CMD,
+[case $MAGIC_CMD in
+[[\\/*] |  ?:[\\/]*])
+  lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
+  ;;
+*)
+  lt_save_MAGIC_CMD="$MAGIC_CMD"
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+dnl $ac_dummy forces splitting on constant user-supplied paths.
+dnl POSIX.2 word splitting is done only on the output of word expansions,
+dnl not every word.  This closes a longstanding sh security hole.
+  ac_dummy="ifelse([$2], , $PATH, [$2])"
+  for ac_dir in $ac_dummy; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$1; then
+      lt_cv_path_MAGIC_CMD="$ac_dir/$1"
+      if test -n "$file_magic_test_file"; then
+       case $deplibs_check_method in
+       "file_magic "*)
+         file_magic_regex="`expr \"$deplibs_check_method\" : \"file_magic \(.*\)\"`"
+         MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+         if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+           $EGREP "$file_magic_regex" > /dev/null; then
+           :
+         else
+           cat <<EOF 1>&2
+
+*** Warning: the command libtool uses to detect shared libraries,
+*** $file_magic_cmd, produces output that libtool cannot recognize.
+*** The result is that libtool may fail to recognize shared libraries
+*** as such.  This will affect the creation of libtool libraries that
+*** depend on shared libraries, but programs linked with such libtool
+*** libraries will work regardless of this problem.  Nevertheless, you
+*** may want to report the problem to your system manager and/or to
+*** bug-libtool@gnu.org
+
+EOF
+         fi ;;
+       esac
+      fi
+      break
+    fi
+  done
+  IFS="$lt_save_ifs"
+  MAGIC_CMD="$lt_save_MAGIC_CMD"
+  ;;
+esac])
+MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+if test -n "$MAGIC_CMD"; then
+  AC_MSG_RESULT($MAGIC_CMD)
+else
+  AC_MSG_RESULT(no)
+fi
+])# AC_PATH_TOOL_PREFIX
+
+
+# AC_PATH_MAGIC
+# -------------
+# find a file program which can recognise a shared library
+AC_DEFUN([AC_PATH_MAGIC],
+[AC_PATH_TOOL_PREFIX(${ac_tool_prefix}file, /usr/bin$PATH_SEPARATOR$PATH)
+if test -z "$lt_cv_path_MAGIC_CMD"; then
+  if test -n "$ac_tool_prefix"; then
+    AC_PATH_TOOL_PREFIX(file, /usr/bin$PATH_SEPARATOR$PATH)
+  else
+    MAGIC_CMD=:
+  fi
+fi
+])# AC_PATH_MAGIC
+
+
+# AC_PROG_LD
+# ----------
+# find the path to the GNU or non-GNU linker
+AC_DEFUN([AC_PROG_LD],
+[AC_ARG_WITH([gnu-ld],
+    [AC_HELP_STRING([--with-gnu-ld],
+       [assume the C compiler uses GNU ld @<:@default=no@:>@])],
+    [test "$withval" = no || with_gnu_ld=yes],
+    [with_gnu_ld=no])
+AC_REQUIRE([LT_AC_PROG_SED])dnl
+AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_CANONICAL_BUILD])dnl
+ac_prog=ld
+if test "$GCC" = yes; then
+  # Check if gcc -print-prog-name=ld gives a path.
+  AC_MSG_CHECKING([for ld used by $CC])
+  case $host in
+  *-*-mingw*)
+    # gcc leaves a trailing carriage return which upsets mingw
+    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+  *)
+    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+  esac
+  case $ac_prog in
+    # Accept absolute paths.
+    [[\\/]]* | ?:[[\\/]]*)
+      re_direlt='/[[^/]][[^/]]*/\.\./'
+      # Canonicalize the path of ld
+      ac_prog=`echo $ac_prog| $SED 's%\\\\%/%g'`
+      while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
+       ac_prog=`echo $ac_prog| $SED "s%$re_direlt%/%"`
+      done
+      test -z "$LD" && LD="$ac_prog"
+      ;;
+  "")
+    # If it fails, then pretend we aren't using GCC.
+    ac_prog=ld
+    ;;
+  *)
+    # If it is relative, then search for the first ld in PATH.
+    with_gnu_ld=unknown
+    ;;
+  esac
+elif test "$with_gnu_ld" = yes; then
+  AC_MSG_CHECKING([for GNU ld])
+else
+  AC_MSG_CHECKING([for non-GNU ld])
+fi
+AC_CACHE_VAL(lt_cv_path_LD,
+[if test -z "$LD"; then
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  for ac_dir in $PATH; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+      lt_cv_path_LD="$ac_dir/$ac_prog"
+      # Check to see if the program is GNU ld.  I'd rather use --version,
+      # but apparently some GNU ld's only accept -v.
+      # Break only if it was the GNU/non-GNU ld that we prefer.
+      case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
+      *GNU* | *'with BFD'*)
+       test "$with_gnu_ld" != no && break
+       ;;
+      *)
+       test "$with_gnu_ld" != yes && break
+       ;;
+      esac
+    fi
+  done
+  IFS="$lt_save_ifs"
+else
+  lt_cv_path_LD="$LD" # Let the user override the test with a path.
+fi])
+LD="$lt_cv_path_LD"
+if test -n "$LD"; then
+  AC_MSG_RESULT($LD)
+else
+  AC_MSG_RESULT(no)
+fi
+test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
+AC_PROG_LD_GNU
+])# AC_PROG_LD
+
+
+# AC_PROG_LD_GNU
+# --------------
+AC_DEFUN([AC_PROG_LD_GNU],
+[AC_REQUIRE([AC_PROG_EGREP])dnl
+AC_CACHE_CHECK([if the linker ($LD) is GNU ld], lt_cv_prog_gnu_ld,
+[# I'd rather use --version here, but apparently some GNU ld's only accept -v.
+case `$LD -v 2>&1 </dev/null` in
+*GNU* | *'with BFD'*)
+  lt_cv_prog_gnu_ld=yes
+  ;;
+*)
+  lt_cv_prog_gnu_ld=no
+  ;;
+esac])
+with_gnu_ld=$lt_cv_prog_gnu_ld
+])# AC_PROG_LD_GNU
+
+
+# AC_PROG_LD_RELOAD_FLAG
+# ----------------------
+# find reload flag for linker
+#   -- PORTME Some linkers may need a different reload flag.
+AC_DEFUN([AC_PROG_LD_RELOAD_FLAG],
+[AC_CACHE_CHECK([for $LD option to reload object files],
+  lt_cv_ld_reload_flag,
+  [lt_cv_ld_reload_flag='-r'])
+reload_flag=$lt_cv_ld_reload_flag
+case $reload_flag in
+"" | " "*) ;;
+*) reload_flag=" $reload_flag" ;;
+esac
+reload_cmds='$LD$reload_flag -o $output$reload_objs'
+])# AC_PROG_LD_RELOAD_FLAG
+
+
+# AC_DEPLIBS_CHECK_METHOD
+# -----------------------
+# how to check for library dependencies
+#  -- PORTME fill in with the dynamic library characteristics
+AC_DEFUN([AC_DEPLIBS_CHECK_METHOD],
+[AC_CACHE_CHECK([how to recognise dependent libraries],
+lt_cv_deplibs_check_method,
+[lt_cv_file_magic_cmd='$MAGIC_CMD'
+lt_cv_file_magic_test_file=
+lt_cv_deplibs_check_method='unknown'
+# Need to set the preceding variable on all platforms that support
+# interlibrary dependencies.
+# 'none' -- dependencies not supported.
+# `unknown' -- same as none, but documents that we really don't know.
+# 'pass_all' -- all dependencies passed with no checks.
+# 'test_compile' -- check by making test program.
+# 'file_magic [[regex]]' -- check by looking for files in library path
+# which responds to the $file_magic_cmd with a given extended regex.
+# If you have `file' or equivalent on your system and you're not sure
+# whether `pass_all' will *always* work, you probably want this one.
+
+case $host_os in
+aix4* | aix5*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+beos*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+bsdi4*)
+  lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib)'
+  lt_cv_file_magic_cmd='/usr/bin/file -L'
+  lt_cv_file_magic_test_file=/shlib/libc.so
+  ;;
+
+cygwin* | mingw* | pw32*)
+  # win32_libid is a shell function defined in ltmain.sh
+  lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+  lt_cv_file_magic_cmd='win32_libid'
+  ;;
+
+darwin* | rhapsody*)
+  # this will be overwritten by pass_all, but leave it in just in case
+  lt_cv_deplibs_check_method='file_magic Mach-O dynamically linked shared library'
+  lt_cv_file_magic_cmd='/usr/bin/file -L'
+  case "$host_os" in
+  rhapsody* | darwin1.[[012]])
+    lt_cv_file_magic_test_file=`/System/Library/Frameworks/System.framework/System`
+    ;;
+  *) # Darwin 1.3 on
+    lt_cv_file_magic_test_file='/usr/lib/libSystem.dylib'
+    ;;
+  esac
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+freebsd*)
+  if echo __ELF__ | $CC -E - | grep __ELF__ > /dev/null; then
+    case $host_cpu in
+    i*86 )
+      # Not sure whether the presence of OpenBSD here was a mistake.
+      # Let's accept both of them until this is cleared up.
+      lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD)/i[[3-9]]86 (compact )?demand paged shared library'
+      lt_cv_file_magic_cmd=/usr/bin/file
+      lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
+      ;;
+    esac
+  else
+    lt_cv_deplibs_check_method=pass_all
+  fi
+  ;;
+
+gnu*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+hpux10.20* | hpux11*)
+  lt_cv_file_magic_cmd=/usr/bin/file
+  case "$host_cpu" in
+  ia64*)
+    lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|ELF-[[0-9]][[0-9]]) shared object file - IA64'
+    lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
+    ;;
+  hppa*64*)
+    [lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - PA-RISC [0-9].[0-9]']
+    lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl
+    ;;
+  *)
+    lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|PA-RISC[[0-9]].[[0-9]]) shared library'
+    lt_cv_file_magic_test_file=/usr/lib/libc.sl
+    ;;
+  esac
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $host_os in
+  irix5* | nonstopux*)
+    # this will be overridden with pass_all, but let us keep it just in case
+    lt_cv_deplibs_check_method="file_magic ELF 32-bit MSB dynamic lib MIPS - version 1"
+    ;;
+  *)
+    case $LD in
+    *-32|*"-32 ") libmagic=32-bit;;
+    *-n32|*"-n32 ") libmagic=N32;;
+    *-64|*"-64 ") libmagic=64-bit;;
+    *) libmagic=never-match;;
+    esac
+    # this will be overridden with pass_all, but let us keep it just in case
+    lt_cv_deplibs_check_method="file_magic ELF ${libmagic} MSB mips-[[1234]] dynamic lib MIPS - version 1"
+    ;;
+  esac
+  lt_cv_file_magic_test_file=`echo /lib${libsuff}/libc.so*`
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+# This must be Linux ELF.
+linux*)
+  case $host_cpu in
+  alpha* | hppa* | i*86 | ia64* | m68* | mips | mipsel | powerpc* | sparc* | s390* | sh* | x86_64*)
+    lt_cv_deplibs_check_method=pass_all ;;
+  *)
+    # glibc up to 2.1.1 does not perform some relocations on ARM
+    lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB (shared object|dynamic lib )' ;;
+  esac
+  lt_cv_file_magic_test_file=`echo /lib/libc.so* /lib/libc-*.so`
+  ;;
+
+netbsd*)
+  if echo __ELF__ | $CC -E - | grep __ELF__ > /dev/null; then
+    lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$'
+  else
+    lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|_pic\.a)$'
+  fi
+  ;;
+
+newos6*)
+  lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (executable|dynamic lib)'
+  lt_cv_file_magic_cmd=/usr/bin/file
+  lt_cv_file_magic_test_file=/usr/lib/libnls.so
+  ;;
+
+nto-qnx)
+  lt_cv_deplibs_check_method=unknown
+  ;;
+
+openbsd*)
+  lt_cv_file_magic_cmd=/usr/bin/file
+  lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
+  if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+    lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB shared object'
+  else
+    lt_cv_deplibs_check_method='file_magic OpenBSD.* shared library'
+  fi
+  ;;
+
+osf3* | osf4* | osf5*)
+  # this will be overridden with pass_all, but let us keep it just in case
+  lt_cv_deplibs_check_method='file_magic COFF format alpha shared library'
+  lt_cv_file_magic_test_file=/shlib/libc.so
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+sco3.2v5*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+solaris*)
+  lt_cv_deplibs_check_method=pass_all
+  lt_cv_file_magic_test_file=/lib/libc.so
+  ;;
+
+sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+  case $host_vendor in
+  motorola)
+    lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib) M[[0-9]][[0-9]]* Version [[0-9]]'
+    lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
+    ;;
+  ncr)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  sequent)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB (shared object|dynamic lib )'
+    ;;
+  sni)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method="file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB dynamic lib"
+    lt_cv_file_magic_test_file=/lib/libc.so
+    ;;
+  siemens)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  esac
+  ;;
+
+sysv5OpenUNIX8* | sysv5UnixWare7* | sysv5uw[[78]]* | unixware7* | sysv4*uw2*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+esac
+])
+file_magic_cmd=$lt_cv_file_magic_cmd
+deplibs_check_method=$lt_cv_deplibs_check_method
+test -z "$deplibs_check_method" && deplibs_check_method=unknown
+])# AC_DEPLIBS_CHECK_METHOD
+
+
+# AC_PROG_NM
+# ----------
+# find the path to a BSD-compatible name lister
+AC_DEFUN([AC_PROG_NM],
+[AC_CACHE_CHECK([for BSD-compatible nm], lt_cv_path_NM,
+[if test -n "$NM"; then
+  # Let the user override the test.
+  lt_cv_path_NM="$NM"
+else
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  for ac_dir in $PATH /usr/ccs/bin /usr/ucb /bin; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    tmp_nm="$ac_dir/${ac_tool_prefix}nm"
+    if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext" ; then
+      # Check to see if the nm accepts a BSD-compat flag.
+      # Adding the `sed 1q' prevents false positives on HP-UX, which says:
+      #   nm: unknown option "B" ignored
+      # Tru64's nm complains that /dev/null is an invalid object file
+      case `"$tmp_nm" -B /dev/null 2>&1 | sed '1q'` in
+      */dev/null* | *'Invalid file or object type'*)
+       lt_cv_path_NM="$tmp_nm -B"
+       break
+        ;;
+      *)
+       case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in
+       */dev/null*)
+         lt_cv_path_NM="$tmp_nm -p"
+         break
+         ;;
+       *)
+         lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
+         continue # so that we can try to find one that supports BSD flags
+         ;;
+       esac
+      esac
+    fi
+  done
+  IFS="$lt_save_ifs"
+  test -z "$lt_cv_path_NM" && lt_cv_path_NM=nm
+fi])
+NM="$lt_cv_path_NM"
+])# AC_PROG_NM
+
+
+# AC_CHECK_LIBM
+# -------------
+# check for math library
+AC_DEFUN([AC_CHECK_LIBM],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+LIBM=
+case $host in
+*-*-beos* | *-*-cygwin* | *-*-pw32* | *-*-darwin*)
+  # These system don't have libm, or don't need it
+  ;;
+*-ncr-sysv4.3*)
+  AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")
+  AC_CHECK_LIB(m, cos, LIBM="$LIBM -lm")
+  ;;
+*)
+  AC_CHECK_LIB(m, cos, LIBM="-lm")
+  ;;
+esac
+])# AC_CHECK_LIBM
+
+
+# AC_LIBLTDL_CONVENIENCE([DIRECTORY])
+# -----------------------------------
+# sets LIBLTDL to the link flags for the libltdl convenience library and
+# LTDLINCL to the include flags for the libltdl header and adds
+# --enable-ltdl-convenience to the configure arguments.  Note that LIBLTDL
+# and LTDLINCL are not AC_SUBSTed, nor is AC_CONFIG_SUBDIRS called.  If
+# DIRECTORY is not provided, it is assumed to be `libltdl'.  LIBLTDL will
+# be prefixed with '${top_builddir}/' and LTDLINCL will be prefixed with
+# '${top_srcdir}/' (note the single quotes!).  If your package is not
+# flat and you're not using automake, define top_builddir and
+# top_srcdir appropriately in the Makefiles.
+AC_DEFUN([AC_LIBLTDL_CONVENIENCE],
+[AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
+  case $enable_ltdl_convenience in
+  no) AC_MSG_ERROR([this package needs a convenience libltdl]) ;;
+  "") enable_ltdl_convenience=yes
+      ac_configure_args="$ac_configure_args --enable-ltdl-convenience" ;;
+  esac
+  LIBLTDL='${top_builddir}/'ifelse($#,1,[$1],['libltdl'])/libltdlc.la
+  LTDLINCL='-I${top_srcdir}/'ifelse($#,1,[$1],['libltdl'])
+  # For backwards non-gettext consistent compatibility...
+  INCLTDL="$LTDLINCL"
+])# AC_LIBLTDL_CONVENIENCE
+
+
+# AC_LIBLTDL_INSTALLABLE([DIRECTORY])
+# -----------------------------------
+# sets LIBLTDL to the link flags for the libltdl installable library and
+# LTDLINCL to the include flags for the libltdl header and adds
+# --enable-ltdl-install to the configure arguments.  Note that LIBLTDL
+# and LTDLINCL are not AC_SUBSTed, nor is AC_CONFIG_SUBDIRS called.  If
+# DIRECTORY is not provided and an installed libltdl is not found, it is
+# assumed to be `libltdl'.  LIBLTDL will be prefixed with '${top_builddir}/'
+# and LTDLINCL will be prefixed with '${top_srcdir}/' (note the single
+# quotes!).  If your package is not flat and you're not using automake,
+# define top_builddir and top_srcdir appropriately in the Makefiles.
+# In the future, this macro may have to be called after AC_PROG_LIBTOOL.
+AC_DEFUN([AC_LIBLTDL_INSTALLABLE],
+[AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
+  AC_CHECK_LIB(ltdl, lt_dlinit,
+  [test x"$enable_ltdl_install" != xyes && enable_ltdl_install=no],
+  [if test x"$enable_ltdl_install" = xno; then
+     AC_MSG_WARN([libltdl not installed, but installation disabled])
+   else
+     enable_ltdl_install=yes
+   fi
+  ])
+  if test x"$enable_ltdl_install" = x"yes"; then
+    ac_configure_args="$ac_configure_args --enable-ltdl-install"
+    LIBLTDL='${top_builddir}/'ifelse($#,1,[$1],['libltdl'])/libltdl.la
+    LTDLINCL='-I${top_srcdir}/'ifelse($#,1,[$1],['libltdl'])
+  else
+    ac_configure_args="$ac_configure_args --enable-ltdl-install=no"
+    LIBLTDL="-lltdl"
+    LTDLINCL=
+  fi
+  # For backwards non-gettext consistent compatibility...
+  INCLTDL="$LTDLINCL"
+])# AC_LIBLTDL_INSTALLABLE
+
+
+# AC_LIBTOOL_CXX
+# --------------
+# enable support for C++ libraries
+AC_DEFUN([AC_LIBTOOL_CXX],
+[AC_REQUIRE([_LT_AC_LANG_CXX])
+])# AC_LIBTOOL_CXX
+
+
+# _LT_AC_LANG_CXX
+# ---------------
+AC_DEFUN([_LT_AC_LANG_CXX],
+[AC_REQUIRE([AC_PROG_CXX])
+AC_REQUIRE([AC_PROG_CXXCPP])
+_LT_AC_SHELL_INIT([tagnames=`echo "$tagnames,CXX" | sed 's/^,//'`])
+])# _LT_AC_LANG_CXX
+
+
+# AC_LIBTOOL_F77
+# --------------
+# enable support for Fortran 77 libraries
+AC_DEFUN([AC_LIBTOOL_F77],
+[AC_REQUIRE([_LT_AC_LANG_F77])
+])# AC_LIBTOOL_F77
+
+
+# _LT_AC_LANG_F77
+# ---------------
+AC_DEFUN([_LT_AC_LANG_F77],
+[AC_REQUIRE([AC_PROG_F77])
+_LT_AC_SHELL_INIT([tagnames=`echo "$tagnames,F77" | sed 's/^,//'`])
+])# _LT_AC_LANG_F77
+
+
+# AC_LIBTOOL_GCJ
+# --------------
+# enable support for GCJ libraries
+AC_DEFUN([AC_LIBTOOL_GCJ],
+[AC_REQUIRE([_LT_AC_LANG_GCJ])
+])# AC_LIBTOOL_GCJ
+
+
+# _LT_AC_LANG_GCJ
+# ---------------
+AC_DEFUN([_LT_AC_LANG_GCJ],
+[AC_PROVIDE_IFELSE([AC_PROG_GCJ],[],
+  [AC_PROVIDE_IFELSE([A][M_PROG_GCJ],[],
+    [AC_PROVIDE_IFELSE([LT_AC_PROG_GCJ],[],
+      [ifdef([AC_PROG_GCJ],[AC_REQUIRE([AC_PROG_GCJ])],
+        [ifdef([A][M_PROG_GCJ],[AC_REQUIRE([A][M_PROG_GCJ])],
+          [AC_REQUIRE([A][C_PROG_GCJ_OR_A][M_PROG_GCJ])])])])])])
+_LT_AC_SHELL_INIT([tagnames=`echo "$tagnames,GCJ" | sed 's/^,//'`])
+])# _LT_AC_LANG_GCJ
+
+
+# AC_LIBTOOL_RC
+# --------------
+# enable support for Windows resource files
+AC_DEFUN([AC_LIBTOOL_RC],
+[AC_REQUIRE([LT_AC_PROG_RC])
+_LT_AC_SHELL_INIT([tagnames=`echo "$tagnames,RC" | sed 's/^,//'`])
+])# AC_LIBTOOL_RC
+
+
+# AC_LIBTOOL_LANG_C_CONFIG
+# ------------------------
+# Ensure that the configuration vars for the C compiler are
+# suitably defined.  Those variables are subsequently used by
+# AC_LIBTOOL_CONFIG to write the compiler configuration to `libtool'.
+AC_DEFUN([AC_LIBTOOL_LANG_C_CONFIG], [_LT_AC_LANG_C_CONFIG])
+AC_DEFUN([_LT_AC_LANG_C_CONFIG],
+[lt_save_CC="$CC"
+AC_LANG_PUSH(C)
+
+# Source file extension for C test sources.
+ac_ext=c
+
+# Object file extension for compiled C test sources.
+objext=o
+_LT_AC_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="int some_variable = 0;\n"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='int main(){return(0);}\n'
+
+_LT_AC_SYS_COMPILER
+
+#
+# Check for any special shared library compilation flags.
+#
+_LT_AC_TAGVAR(lt_prog_cc_shlib, $1)=
+if test "$GCC" = no; then
+  case $host_os in
+  sco3.2v5*)
+    _LT_AC_TAGVAR(lt_prog_cc_shlib, $1)='-belf'
+    ;;
+  esac
+fi
+if test -n "$_LT_AC_TAGVAR(lt_prog_cc_shlib, $1)"; then
+  AC_MSG_WARN([`$CC' requires `$_LT_AC_TAGVAR(lt_prog_cc_shlib, $1)' to build shared libraries])
+  if echo "$old_CC $old_CFLAGS " | grep "[[    ]]$]_LT_AC_TAGVAR(lt_prog_cc_shlib, $1)[[[      ]]" >/dev/null; then :
+  else
+    AC_MSG_WARN([add `$_LT_AC_TAGVAR(lt_prog_cc_shlib, $1)' to the CC or CFLAGS env variable and reconfigure])
+    _LT_AC_TAGVAR(lt_cv_prog_cc_can_build_shared, $1)=no
+  fi
+fi
+
+
+#
+# Check to make sure the static flag actually works.
+#
+AC_LIBTOOL_LINKER_OPTION([if $compiler static flag $_LT_AC_TAGVAR(lt_prog_compiler_static, $1) works],
+  _LT_AC_TAGVAR(lt_prog_compiler_static_works, $1),
+  $_LT_AC_TAGVAR(lt_prog_compiler_static, $1),
+  [],
+  [_LT_AC_TAGVAR(lt_prog_compiler_static, $1)=])
+
+
+AC_LIBTOOL_PROG_COMPILER_NO_RTTI($1)
+AC_LIBTOOL_PROG_COMPILER_PIC($1)
+AC_LIBTOOL_PROG_CC_C_O($1)
+AC_LIBTOOL_SYS_HARD_LINK_LOCKS($1)
+AC_LIBTOOL_PROG_LD_SHLIBS($1)
+AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH($1)
+AC_LIBTOOL_SYS_LIB_STRIP
+AC_LIBTOOL_SYS_DYNAMIC_LINKER($1)
+AC_LIBTOOL_DLOPEN_SELF($1)
+
+# Report which librarie types wil actually be built
+AC_MSG_CHECKING([if libtool supports shared libraries])
+AC_MSG_RESULT([$can_build_shared])
+
+AC_MSG_CHECKING([whether to build shared libraries])
+test "$can_build_shared" = "no" && enable_shared=no
+
+# On AIX, shared libraries and static libraries use the same namespace, and
+# are all built from PIC.
+case "$host_os" in
+aix3*)
+  test "$enable_shared" = yes && enable_static=no
+  if test -n "$RANLIB"; then
+    archive_cmds="$archive_cmds~\$RANLIB \$lib"
+    postinstall_cmds='$RANLIB $lib'
+  fi
+  ;;
+
+aix4*)
+  if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
+    test "$enable_shared" = yes && enable_static=no
+  fi
+  ;;
+  darwin* | rhapsody*)
+  if $CC -v 2>&1 | grep 'Apple' >/dev/null ; then 
+    _LT_AC_TAGVAR(archive_cmds_need_lc, $1)=no
+    case "$host_os" in
+    rhapsody* | darwin1.[[012]])
+      _LT_AC_TAGVAR(allow_undefined_flag, $1)='-undefined suppress'
+      ;;
+    *) # Darwin 1.3 on
+      test -z ${LD_TWOLEVEL_NAMESPACE} && _LT_AC_TAGVAR(allow_undefined_flag, $1)='-flat_namespace -undefined suppress'
+      ;;
+    esac
+    # FIXME: Relying on posixy $() will cause problems for
+    #        cross-compilation, but unfortunately the echo tests do not
+    #        yet detect zsh echo's removal of \ escapes.  Also zsh mangles
+    #         `"' quotes if we put them in here... so don't!
+               output_verbose_link_cmd='echo'
+    _LT_AC_TAGVAR(archive_cmds, $1)='$CC -dynamiclib $allow_undefined_flag -o $lib $libobjs $deplibs$compiler_flags -install_name $rpath/$soname $verstring'
+    _LT_AC_TAGVAR(module_cmds, $1)='$CC -bundle $allow_undefined_flag -o $lib $libobjs $deplibs$compiler_flags'
+    # Don't fix this by using the ld -exported_symbols_list flag, it doesn't exist in older darwin ld's
+                 _LT_AC_TAGVAR(archive_expsym_cmds, $1)='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -dynamiclib $allow_undefined_flag  -o $lib $libobjs $deplibs$compiler_flags -install_name $rpath/$soname $verstring~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
+                 _LT_AC_TAGVAR(module_expsym_cmds, $1)='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -bundle $allow_undefined_flag  -o $lib $libobjs $deplibs$compiler_flags~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
+    _LT_AC_TAGVAR(hardcode_direct, $1)=no
+    _LT_AC_TAGVAR(hardcode_automatic, $1)=yes
+    _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
+    _LT_AC_TAGVAR(whole_archive_flag_spec, $1)='-all_load $convenience'
+    _LT_AC_TAGVAR(link_all_deplibs, $1)=yes
+    fi
+    ;;  
+esac
+AC_MSG_RESULT([$enable_shared])
+
+AC_MSG_CHECKING([whether to build static libraries])
+# Make sure either enable_shared or enable_static is yes.
+test "$enable_shared" = yes || enable_static=yes
+AC_MSG_RESULT([$enable_static])
+
+AC_LIBTOOL_CONFIG($1)
+
+AC_LANG_POP
+CC="$lt_save_CC"
+])# AC_LIBTOOL_LANG_C_CONFIG
+
+
+# AC_LIBTOOL_LANG_CXX_CONFIG
+# --------------------------
+# Ensure that the configuration vars for the C compiler are
+# suitably defined.  Those variables are subsequently used by
+# AC_LIBTOOL_CONFIG to write the compiler configuration to `libtool'.
+AC_DEFUN([AC_LIBTOOL_LANG_CXX_CONFIG], [_LT_AC_LANG_CXX_CONFIG(CXX)])
+AC_DEFUN([_LT_AC_LANG_CXX_CONFIG],
+[AC_LANG_PUSH(C++)
+AC_REQUIRE([AC_PROG_CXX])
+AC_REQUIRE([AC_PROG_CXXCPP])
+
+_LT_AC_TAGVAR(archive_cmds_need_lc, $1)=no
+_LT_AC_TAGVAR(allow_undefined_flag, $1)=
+_LT_AC_TAGVAR(always_export_symbols, $1)=no
+_LT_AC_TAGVAR(archive_expsym_cmds, $1)=
+_LT_AC_TAGVAR(export_dynamic_flag_spec, $1)=
+_LT_AC_TAGVAR(hardcode_direct, $1)=no
+_LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)=
+_LT_AC_TAGVAR(hardcode_libdir_flag_spec_ld, $1)=
+_LT_AC_TAGVAR(hardcode_libdir_separator, $1)=
+_LT_AC_TAGVAR(hardcode_minus_L, $1)=no
+_LT_AC_TAGVAR(hardcode_automatic, $1)=no
+_LT_AC_TAGVAR(module_cmds, $1)=
+_LT_AC_TAGVAR(module_expsym_cmds, $1)=
+_LT_AC_TAGVAR(link_all_deplibs, $1)=unknown
+_LT_AC_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_AC_TAGVAR(no_undefined_flag, $1)=
+_LT_AC_TAGVAR(whole_archive_flag_spec, $1)=
+_LT_AC_TAGVAR(enable_shared_with_static_runtimes, $1)=no
+
+# Dependencies to place before and after the object being linked:
+_LT_AC_TAGVAR(predep_objects, $1)=
+_LT_AC_TAGVAR(postdep_objects, $1)=
+_LT_AC_TAGVAR(predeps, $1)=
+_LT_AC_TAGVAR(postdeps, $1)=
+_LT_AC_TAGVAR(compiler_lib_search_path, $1)=
+
+# Source file extension for C++ test sources.
+ac_ext=cc
+
+# Object file extension for compiled C++ test sources.
+objext=o
+_LT_AC_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="int some_variable = 0;\n"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='int main(int, char *[]) { return(0); }\n'
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+_LT_AC_SYS_COMPILER
+
+# Allow CC to be a program name with arguments.
+lt_save_CC=$CC
+lt_save_LD=$LD
+lt_save_GCC=$GCC
+GCC=$GXX
+lt_save_with_gnu_ld=$with_gnu_ld
+lt_save_path_LD=$lt_cv_path_LD
+if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then
+  lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx
+else
+  unset lt_cv_prog_gnu_ld
+fi
+if test -n "${lt_cv_path_LDCXX+set}"; then
+  lt_cv_path_LD=$lt_cv_path_LDCXX
+else
+  unset lt_cv_path_LD
+fi
+test -z "${LDCXX+set}" || LD=$LDCXX
+CC=${CXX-"c++"}
+compiler=$CC
+_LT_AC_TAGVAR(compiler, $1)=$CC
+cc_basename=`$echo X"$compiler" | $Xsed -e 's%^.*/%%'`
+
+# We don't want -fno-exception wen compiling C++ code, so set the
+# no_builtin_flag separately
+if test "$GXX" = yes; then
+  _LT_AC_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin'
+else
+  _LT_AC_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
+fi
+
+if test "$GXX" = yes; then
+  # Set up default GNU C++ configuration
+
+  AC_PROG_LD
+
+  # Check if GNU C++ uses GNU ld as the underlying linker, since the
+  # archiving commands below assume that GNU ld is being used.
+  if test "$with_gnu_ld" = yes; then
+    _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
+    _LT_AC_TAGVAR(archive_expsym_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+
+    _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}--rpath ${wl}$libdir'
+    _LT_AC_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
+
+    # If archive_cmds runs LD, not CC, wlarc should be empty
+    # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
+    #     investigate it a little bit more. (MM)
+    wlarc='${wl}'
+
+    # ancient GNU ld didn't support --whole-archive et. al.
+    if eval "`$CC -print-prog-name=ld` --help 2>&1" | \
+       grep 'no-whole-archive' > /dev/null; then
+      _LT_AC_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+    else
+      _LT_AC_TAGVAR(whole_archive_flag_spec, $1)=
+    fi
+  else
+    with_gnu_ld=no
+    wlarc=
+
+    # A generic and very simple default shared library creation
+    # command for GNU C++ for the case where it uses the native
+    # linker, instead of GNU ld.  If possible, this setting should
+    # overridden to take advantage of the native linker features on
+    # the platform it is being used on.
+    _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+  fi
+
+  # Commands to make compiler produce verbose output that lists
+  # what "hidden" libraries, object files and flags are used when
+  # linking a shared library.
+  output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "\-L"'
+
+else
+  GXX=no
+  with_gnu_ld=no
+  wlarc=
+fi
+
+# PORTME: fill in a description of your system's C++ link characteristics
+AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries])
+_LT_AC_TAGVAR(ld_shlibs, $1)=yes
+case $host_os in
+  aix3*)
+    # FIXME: insert proper C++ library support
+    _LT_AC_TAGVAR(ld_shlibs, $1)=no
+    ;;
+  aix4* | aix5*)
+    if test "$host_cpu" = ia64; then
+      # On IA64, the linker does run time linking by default, so we don't
+      # have to do anything special.
+      aix_use_runtimelinking=no
+      exp_sym_flag='-Bexport'
+      no_entry_flag=""
+    else
+      aix_use_runtimelinking=no
+
+      # Test if we are trying to use run time linking or normal
+      # AIX style linking. If -brtl is somewhere in LDFLAGS, we
+      # need to do runtime linking.
+      case $host_os in aix4.[[23]]|aix4.[[23]].*|aix5*)
+       for ld_flag in $LDFLAGS; do
+         case $ld_flag in
+         *-brtl*)
+           aix_use_runtimelinking=yes
+           break
+           ;;
+         esac
+       done
+      esac
+
+      exp_sym_flag='-bexport'
+      no_entry_flag='-bnoentry'
+    fi
+
+    # When large executables or shared objects are built, AIX ld can
+    # have problems creating the table of contents.  If linking a library
+    # or program results in "error TOC overflow" add -mminimal-toc to
+    # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+    # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+    _LT_AC_TAGVAR(archive_cmds, $1)=''
+    _LT_AC_TAGVAR(hardcode_direct, $1)=yes
+    _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=':'
+    _LT_AC_TAGVAR(link_all_deplibs, $1)=yes
+
+    if test "$GXX" = yes; then
+      case $host_os in aix4.[012]|aix4.[012].*)
+      # We only want to do this on AIX 4.2 and lower, the check
+      # below for broken collect2 doesn't work under 4.3+
+       collect2name=`${CC} -print-prog-name=collect2`
+       if test -f "$collect2name" && \
+          strings "$collect2name" | grep resolve_lib_name >/dev/null
+       then
+         # We have reworked collect2
+         _LT_AC_TAGVAR(hardcode_direct, $1)=yes
+       else
+         # We have old collect2
+         _LT_AC_TAGVAR(hardcode_direct, $1)=unsupported
+         # It fails to find uninstalled libraries when the uninstalled
+         # path is not listed in the libpath.  Setting hardcode_minus_L
+         # to unsupported forces relinking
+         _LT_AC_TAGVAR(hardcode_minus_L, $1)=yes
+         _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+         _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=
+       fi
+      esac
+      shared_flag='-shared'
+    else
+      # not using gcc
+      if test "$host_cpu" = ia64; then
+       # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+       # chokes on -Wl,-G. The following line is correct:
+       shared_flag='-G'
+      else
+       if test "$aix_use_runtimelinking" = yes; then
+         shared_flag='${wl}-G'
+       else
+         shared_flag='${wl}-bM:SRE'
+       fi
+      fi
+    fi
+
+    # It seems that -bexpall does not export symbols beginning with
+    # underscore (_), so it is better to generate a list of symbols to export.
+    _LT_AC_TAGVAR(always_export_symbols, $1)=yes
+    if test "$aix_use_runtimelinking" = yes; then
+      # Warning - without using the other runtime loading flags (-brtl),
+      # -berok will link without error, but may produce a broken library.
+      _LT_AC_TAGVAR(allow_undefined_flag, $1)='-berok'
+      # Determine the default libpath from the value encoded in an empty executable.
+      _LT_AC_SYS_LIBPATH_AIX
+      _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
+
+      _LT_AC_TAGVAR(archive_expsym_cmds, $1)="\$CC"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then echo "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols $shared_flag"
+     else
+      if test "$host_cpu" = ia64; then
+       _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $libdir:/usr/lib:/lib'
+       _LT_AC_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
+       _LT_AC_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"
+      else
+       # Determine the default libpath from the value encoded in an empty executable.
+       _LT_AC_SYS_LIBPATH_AIX
+       _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
+       # Warning - without using the other run time loading flags,
+       # -berok will link without error, but may produce a broken library.
+       _LT_AC_TAGVAR(no_undefined_flag, $1)=' ${wl}-bernotok'
+       _LT_AC_TAGVAR(allow_undefined_flag, $1)=' ${wl}-berok'
+       # -bexpall does not export symbols beginning with underscore (_)
+       _LT_AC_TAGVAR(always_export_symbols, $1)=yes
+       # Exported symbols can be pulled into shared objects from archives
+       _LT_AC_TAGVAR(whole_archive_flag_spec, $1)=' '
+       _LT_AC_TAGVAR(archive_cmds_need_lc, $1)=yes
+       # This is similar to how AIX traditionally builds it's shared libraries.
+       _LT_AC_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bE:$export_symbols ${wl}-bnoentry${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
+      fi
+    fi
+    ;;
+  chorus*)
+    case $cc_basename in
+      *)
+       # FIXME: insert proper C++ library support
+       _LT_AC_TAGVAR(ld_shlibs, $1)=no
+       ;;
+    esac
+    ;;
+
+  cygwin* | mingw* | pw32*)
+    # _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
+    # as there is no search path for DLLs.
+    _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+    _LT_AC_TAGVAR(allow_undefined_flag, $1)=unsupported
+    _LT_AC_TAGVAR(always_export_symbols, $1)=no
+    _LT_AC_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+
+    if $LD --help 2>&1 | grep 'auto-import' > /dev/null; then
+      _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--image-base=0x10000000 ${wl}--out-implib,$lib'
+      # If the export-symbols file already is a .def file (1st line
+      # is EXPORTS), use it as is; otherwise, prepend...
+      _LT_AC_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+       cp $export_symbols $output_objdir/$soname.def;
+      else
+       echo EXPORTS > $output_objdir/$soname.def;
+       cat $export_symbols >> $output_objdir/$soname.def;
+      fi~
+      $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--image-base=0x10000000 ${wl}--out-implib,$lib'
+    else
+      _LT_AC_TAGVAR(ld_shlibs, $1)=no
+    fi
+  ;;
+
+  darwin* | rhapsody*)
+   if $CC -v 2>&1 | grep 'Apple' >/dev/null ; then 
+    _LT_AC_TAGVAR(archive_cmds_need_lc, $1)=no
+    case "$host_os" in
+    rhapsody* | darwin1.[[012]])
+      _LT_AC_TAGVAR(allow_undefined_flag, $1)='-undefined suppress'
+      ;;
+    *) # Darwin 1.3 on
+      test -z ${LD_TWOLEVEL_NAMESPACE} && _LT_AC_TAGVAR(allow_undefined_flag, $1)='-flat_namespace -undefined suppress'
+      ;;
+    esac
+       lt_int_apple_cc_single_mod=no
+       output_verbose_link_cmd='echo'
+       if $CC -dumpspecs 2>&1 | grep 'single_module' >/dev/null ; then
+         lt_int_apple_cc_single_mod=yes
+       fi
+       if test "X$lt_int_apple_cc_single_mod" = Xyes ; then
+         _LT_AC_TAGVAR(archive_cmds, $1)='$CC -dynamiclib -single_module $allow_undefined_flag -o $lib $libobjs $deplibs $compiler_flags -install_name $rpath/$soname $verstring'
+       else
+        _LT_AC_TAGVAR(archive_cmds, $1)='$CC -r ${wl}-bind_at_load -keep_private_externs -nostdlib -o ${lib}-master.o $libobjs~$CC -dynamiclib $allow_undefined_flag -o $lib ${lib}-master.o $deplibs $compiler_flags -install_name $rpath/$soname $verstring'
+      fi
+      _LT_AC_TAGVAR(module_cmds, $1)='$CC -bundle ${wl}-bind_at_load $allow_undefined_flag -o $lib $libobjs $deplibs$compiler_flags'
+
+    # Don't fix this by using the ld -exported_symbols_list flag, it doesn't exist in older darwin ld's
+      if test "X$lt_int_apple_cc_single_mod" = Xyes ; then
+        _LT_AC_TAGVAR(archive_expsym_cmds, $1)='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -dynamiclib -single_module $allow_undefined_flag -o $lib $libobjs $deplibs $compiler_flags -install_name $rpath/$soname $verstring~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
+      else
+        _LT_AC_TAGVAR(archive_expsym_cmds, $1)='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -r ${wl}-bind_at_load -keep_private_externs -nostdlib -o ${lib}-master.o $libobjs~$CC -dynamiclib $allow_undefined_flag -o $lib ${lib}-master.o $deplibs $compiler_flags -install_name $rpath/$soname $verstring~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
+      fi
+        _LT_AC_TAGVAR(module_expsym_cmds, $1)='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -bundle $allow_undefined_flag  -o $lib $libobjs $deplibs$compiler_flags~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
+    _LT_AC_TAGVAR(hardcode_direct, $1)=no
+    _LT_AC_TAGVAR(hardcode_automatic, $1)=yes
+    _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
+    _LT_AC_TAGVAR(whole_archive_flag_spec, $1)='-all_load $convenience'
+    _LT_AC_TAGVAR(link_all_deplibs, $1)=yes
+   fi 
+    ;;
+
+  dgux*)
+    case $cc_basename in
+      ec++)
+       # FIXME: insert proper C++ library support
+       _LT_AC_TAGVAR(ld_shlibs, $1)=no
+       ;;
+      ghcx)
+       # Green Hills C++ Compiler
+       # FIXME: insert proper C++ library support
+       _LT_AC_TAGVAR(ld_shlibs, $1)=no
+       ;;
+      *)
+       # FIXME: insert proper C++ library support
+       _LT_AC_TAGVAR(ld_shlibs, $1)=no
+       ;;
+    esac
+    ;;
+  freebsd[12]*)
+    # C++ shared libraries reported to be fairly broken before switch to ELF
+    _LT_AC_TAGVAR(ld_shlibs, $1)=no
+    ;;
+  freebsd-elf*)
+    _LT_AC_TAGVAR(archive_cmds_need_lc, $1)=no
+    ;;
+  freebsd*)
+    # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
+    # conventions
+    _LT_AC_TAGVAR(ld_shlibs, $1)=yes
+    ;;
+  gnu*)
+    ;;
+  hpux9*)
+    _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
+    _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=:
+    _LT_AC_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+    _LT_AC_TAGVAR(hardcode_direct, $1)=yes
+    _LT_AC_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
+                               # but as the default
+                               # location of the library.
+
+    case $cc_basename in
+    CC)
+      # FIXME: insert proper C++ library support
+      _LT_AC_TAGVAR(ld_shlibs, $1)=no
+      ;;
+    aCC)
+      _LT_AC_TAGVAR(archive_cmds, $1)='$rm $output_objdir/$soname~$CC -b ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+      # Commands to make compiler produce verbose output that lists
+      # what "hidden" libraries, object files and flags are used when
+      # linking a shared library.
+      #
+      # There doesn't appear to be a way to prevent this compiler from
+      # explicitly linking system object files so we need to strip them
+      # from the output so that they don't get included in the library
+      # dependencies.
+      output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | egrep "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
+      ;;
+    *)
+      if test "$GXX" = yes; then
+        _LT_AC_TAGVAR(archive_cmds, $1)='$rm $output_objdir/$soname~$CC -shared -nostdlib -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+      else
+        # FIXME: insert proper C++ library support
+        _LT_AC_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+    esac
+    ;;
+  hpux10*|hpux11*)
+    if test $with_gnu_ld = no; then
+      case "$host_cpu" in
+      hppa*64*)
+       _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
+       _LT_AC_TAGVAR(hardcode_libdir_flag_spec_ld, $1)='+b $libdir'
+       _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=:
+        ;;
+      ia64*)
+       _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+        ;;
+      *)
+       _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
+       _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=:
+       _LT_AC_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+        ;;
+      esac
+    fi
+    case "$host_cpu" in
+    hppa*64*)
+      _LT_AC_TAGVAR(hardcode_direct, $1)=no
+      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+    ia64*)
+      _LT_AC_TAGVAR(hardcode_direct, $1)=no
+      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+      _LT_AC_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
+                                             # but as the default
+                                             # location of the library.
+      ;;
+    *)
+      _LT_AC_TAGVAR(hardcode_direct, $1)=yes
+      _LT_AC_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
+                                             # but as the default
+                                             # location of the library.
+      ;;
+    esac
+
+    case $cc_basename in
+      CC)
+       # FIXME: insert proper C++ library support
+       _LT_AC_TAGVAR(ld_shlibs, $1)=no
+       ;;
+      aCC)
+       case "$host_cpu" in
+       hppa*64*|ia64*)
+         _LT_AC_TAGVAR(archive_cmds, $1)='$LD -b +h $soname -o $lib $linker_flags $libobjs $deplibs'
+         ;;
+       *)
+         _LT_AC_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+         ;;
+       esac
+       # Commands to make compiler produce verbose output that lists
+       # what "hidden" libraries, object files and flags are used when
+       # linking a shared library.
+       #
+       # There doesn't appear to be a way to prevent this compiler from
+       # explicitly linking system object files so we need to strip them
+       # from the output so that they don't get included in the library
+       # dependencies.
+       output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | grep "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
+       ;;
+      *)
+       if test "$GXX" = yes; then
+         if test $with_gnu_ld = no; then
+           case "$host_cpu" in
+           ia64*|hppa*64*)
+             _LT_AC_TAGVAR(archive_cmds, $1)='$LD -b +h $soname -o $lib $linker_flags $libobjs $deplibs'
+             ;;
+           *)
+             _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+             ;;
+           esac
+         fi
+       else
+         # FIXME: insert proper C++ library support
+         _LT_AC_TAGVAR(ld_shlibs, $1)=no
+       fi
+       ;;
+    esac
+    ;;
+  irix5* | irix6*)
+    case $cc_basename in
+      CC)
+       # SGI C++
+       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
+
+       # Archives containing C++ object files must be created using
+       # "CC -ar", where "CC" is the IRIX C++ compiler.  This is
+       # necessary to make sure instantiated templates are included
+       # in the archive.
+       _LT_AC_TAGVAR(old_archive_cmds, $1)='$CC -ar -WR,-u -o $oldlib $oldobjs'
+       ;;
+      *)
+       if test "$GXX" = yes; then
+         if test "$with_gnu_ld" = no; then
+           _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
+         else
+           _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` -o $lib'
+         fi
+       fi
+       _LT_AC_TAGVAR(link_all_deplibs, $1)=yes
+       ;;
+    esac
+    _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+    _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=:
+    ;;
+  linux*)
+    case $cc_basename in
+      KCC)
+       # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+       # KCC will only create a shared library if the output file
+       # ends with ".so" (or ".sl" for HP-UX), so rename the library
+       # to its proper name (with version) after linking.
+       _LT_AC_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+       _LT_AC_TAGVAR(archive_expsym_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib ${wl}-retain-symbols-file,$export_symbols; mv \$templib $lib'
+       # Commands to make compiler produce verbose output that lists
+       # what "hidden" libraries, object files and flags are used when
+       # linking a shared library.
+       #
+       # There doesn't appear to be a way to prevent this compiler from
+       # explicitly linking system object files so we need to strip them
+       # from the output so that they don't get included in the library
+       # dependencies.
+       output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | grep "ld"`; rm -f libconftest$shared_ext; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
+
+       _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}--rpath,$libdir'
+       _LT_AC_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
+
+       # Archives containing C++ object files must be created using
+       # "CC -Bstatic", where "CC" is the KAI C++ compiler.
+       _LT_AC_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs'
+       ;;
+      icpc)
+       # Intel C++
+       with_gnu_ld=yes
+       _LT_AC_TAGVAR(archive_cmds_need_lc, $1)=no
+       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
+       _LT_AC_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+       _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
+       _LT_AC_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
+       _LT_AC_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
+       ;;
+      cxx)
+       # Compaq C++
+       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
+       _LT_AC_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname  -o $lib ${wl}-retain-symbols-file $wl$export_symbols'
+
+       runpath_var=LD_RUN_PATH
+       _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
+       _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=:
+
+       # Commands to make compiler produce verbose output that lists
+       # what "hidden" libraries, object files and flags are used when
+       # linking a shared library.
+       #
+       # There doesn't appear to be a way to prevent this compiler from
+       # explicitly linking system object files so we need to strip them
+       # from the output so that they don't get included in the library
+       # dependencies.
+       output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "ld"`; templist=`echo $templist | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
+       ;;
+    esac
+    ;;
+  lynxos*)
+    # FIXME: insert proper C++ library support
+    _LT_AC_TAGVAR(ld_shlibs, $1)=no
+    ;;
+  m88k*)
+    # FIXME: insert proper C++ library support
+    _LT_AC_TAGVAR(ld_shlibs, $1)=no
+    ;;
+  mvs*)
+    case $cc_basename in
+      cxx)
+       # FIXME: insert proper C++ library support
+       _LT_AC_TAGVAR(ld_shlibs, $1)=no
+       ;;
+      *)
+       # FIXME: insert proper C++ library support
+       _LT_AC_TAGVAR(ld_shlibs, $1)=no
+       ;;
+    esac
+    ;;
+  netbsd*)
+    if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
+      _LT_AC_TAGVAR(archive_cmds, $1)='$LD -Bshareable  -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags'
+      wlarc=
+      _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+      _LT_AC_TAGVAR(hardcode_direct, $1)=yes
+      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+    fi
+    # Workaround some broken pre-1.5 toolchains
+    output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"'
+    ;;
+  osf3*)
+    case $cc_basename in
+      KCC)
+       # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+       # KCC will only create a shared library if the output file
+       # ends with ".so" (or ".sl" for HP-UX), so rename the library
+       # to its proper name (with version) after linking.
+       _LT_AC_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+
+       _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
+       _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=:
+
+       # Archives containing C++ object files must be created using
+       # "CC -Bstatic", where "CC" is the KAI C++ compiler.
+       _LT_AC_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs'
+
+       ;;
+      RCC)
+       # Rational C++ 2.4.1
+       # FIXME: insert proper C++ library support
+       _LT_AC_TAGVAR(ld_shlibs, $1)=no
+       ;;
+      cxx)
+       _LT_AC_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
+       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $soname `test -n "$verstring" && echo ${wl}-set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
+
+       _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+       _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=:
+
+       # Commands to make compiler produce verbose output that lists
+       # what "hidden" libraries, object files and flags are used when
+       # linking a shared library.
+       #
+       # There doesn't appear to be a way to prevent this compiler from
+       # explicitly linking system object files so we need to strip them
+       # from the output so that they don't get included in the library
+       # dependencies.
+       output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "ld" | grep -v "ld:"`; templist=`echo $templist | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
+       ;;
+      *)
+       if test "$GXX" = yes && test "$with_gnu_ld" = no; then
+         _LT_AC_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
+         _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
+
+         _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+         _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=:
+
+         # Commands to make compiler produce verbose output that lists
+         # what "hidden" libraries, object files and flags are used when
+         # linking a shared library.
+         output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "\-L"'
+
+       else
+         # FIXME: insert proper C++ library support
+         _LT_AC_TAGVAR(ld_shlibs, $1)=no
+       fi
+       ;;
+    esac
+    ;;
+  osf4* | osf5*)
+    case $cc_basename in
+      KCC)
+       # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+       # KCC will only create a shared library if the output file
+       # ends with ".so" (or ".sl" for HP-UX), so rename the library
+       # to its proper name (with version) after linking.
+       _LT_AC_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+
+       _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
+       _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=:
+
+       # Archives containing C++ object files must be created using
+       # the KAI C++ compiler.
+       _LT_AC_TAGVAR(old_archive_cmds, $1)='$CC -o $oldlib $oldobjs'
+       ;;
+      RCC)
+       # Rational C++ 2.4.1
+       # FIXME: insert proper C++ library support
+       _LT_AC_TAGVAR(ld_shlibs, $1)=no
+       ;;
+      cxx)
+       _LT_AC_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
+       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
+       _LT_AC_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~
+         echo "-hidden">> $lib.exp~
+         $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname -Wl,-input -Wl,$lib.exp  `test -n "$verstring" && echo -set_version $verstring` -update_registry $objdir/so_locations -o $lib~
+         $rm $lib.exp'
+
+       _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
+       _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=:
+
+       # Commands to make compiler produce verbose output that lists
+       # what "hidden" libraries, object files and flags are used when
+       # linking a shared library.
+       #
+       # There doesn't appear to be a way to prevent this compiler from
+       # explicitly linking system object files so we need to strip them
+       # from the output so that they don't get included in the library
+       # dependencies.
+       output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "ld" | grep -v "ld:"`; templist=`echo $templist | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
+       ;;
+      *)
+       if test "$GXX" = yes && test "$with_gnu_ld" = no; then
+         _LT_AC_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
+        _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
+
+         _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+         _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=:
+
+         # Commands to make compiler produce verbose output that lists
+         # what "hidden" libraries, object files and flags are used when
+         # linking a shared library.
+         output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "\-L"'
+
+       else
+         # FIXME: insert proper C++ library support
+         _LT_AC_TAGVAR(ld_shlibs, $1)=no
+       fi
+       ;;
+    esac
+    ;;
+  psos*)
+    # FIXME: insert proper C++ library support
+    _LT_AC_TAGVAR(ld_shlibs, $1)=no
+    ;;
+  sco*)
+    _LT_AC_TAGVAR(archive_cmds_need_lc, $1)=no
+    case $cc_basename in
+      CC)
+       # FIXME: insert proper C++ library support
+       _LT_AC_TAGVAR(ld_shlibs, $1)=no
+       ;;
+      *)
+       # FIXME: insert proper C++ library support
+       _LT_AC_TAGVAR(ld_shlibs, $1)=no
+       ;;
+    esac
+    ;;
+  sunos4*)
+    case $cc_basename in
+      CC)
+       # Sun C++ 4.x
+       # FIXME: insert proper C++ library support
+       _LT_AC_TAGVAR(ld_shlibs, $1)=no
+       ;;
+      lcc)
+       # Lucid
+       # FIXME: insert proper C++ library support
+       _LT_AC_TAGVAR(ld_shlibs, $1)=no
+       ;;
+      *)
+       # FIXME: insert proper C++ library support
+       _LT_AC_TAGVAR(ld_shlibs, $1)=no
+       ;;
+    esac
+    ;;
+  solaris*)
+    case $cc_basename in
+      CC)
+       # Sun C++ 4.2, 5.x and Centerline C++
+       _LT_AC_TAGVAR(no_undefined_flag, $1)=' -zdefs'
+       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag} -nolib -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+       _LT_AC_TAGVAR(archive_expsym_cmds, $1)='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+       $CC -G${allow_undefined_flag} -nolib ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
+
+       _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+       _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+       case $host_os in
+         solaris2.[0-5] | solaris2.[0-5].*) ;;
+         *)
+           # The C++ compiler is used as linker so we must use $wl
+           # flag to pass the commands to the underlying system
+           # linker.
+           # Supported since Solaris 2.6 (maybe 2.5.1?)
+           _LT_AC_TAGVAR(whole_archive_flag_spec, $1)='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
+           ;;
+       esac
+       _LT_AC_TAGVAR(link_all_deplibs, $1)=yes
+
+       # Commands to make compiler produce verbose output that lists
+       # what "hidden" libraries, object files and flags are used when
+       # linking a shared library.
+       #
+       # There doesn't appear to be a way to prevent this compiler from
+       # explicitly linking system object files so we need to strip them
+       # from the output so that they don't get included in the library
+       # dependencies.
+       output_verbose_link_cmd='templist=`$CC -G $CFLAGS -v conftest.$objext 2>&1 | grep "\-[[LR]]"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
+
+       # Archives containing C++ object files must be created using
+       # "CC -xar", where "CC" is the Sun C++ compiler.  This is
+       # necessary to make sure instantiated templates are included
+       # in the archive.
+       _LT_AC_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs'
+       ;;
+      gcx)
+       # Green Hills C++ Compiler
+       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+
+       # The C++ compiler must be used to create the archive.
+       _LT_AC_TAGVAR(old_archive_cmds, $1)='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
+       ;;
+      *)
+       # GNU C++ compiler with Solaris linker
+       if test "$GXX" = yes && test "$with_gnu_ld" = no; then
+         _LT_AC_TAGVAR(no_undefined_flag, $1)=' ${wl}-z ${wl}defs'
+         if $CC --version | grep -v '^2\.7' > /dev/null; then
+           _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+           _LT_AC_TAGVAR(archive_expsym_cmds, $1)='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+               $CC -shared -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
+
+           # Commands to make compiler produce verbose output that lists
+           # what "hidden" libraries, object files and flags are used when
+           # linking a shared library.
+           output_verbose_link_cmd="$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep \"\-L\""
+         else
+           # g++ 2.7 appears to require `-G' NOT `-shared' on this
+           # platform.
+           _LT_AC_TAGVAR(archive_cmds, $1)='$CC -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+           _LT_AC_TAGVAR(archive_expsym_cmds, $1)='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+               $CC -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
+
+           # Commands to make compiler produce verbose output that lists
+           # what "hidden" libraries, object files and flags are used when
+           # linking a shared library.
+           output_verbose_link_cmd="$CC -G $CFLAGS -v conftest.$objext 2>&1 | grep \"\-L\""
+         fi
+
+         _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $wl$libdir'
+       fi
+       ;;
+    esac
+    ;;
+  sysv5OpenUNIX8* | sysv5UnixWare7* | sysv5uw[[78]]* | unixware7*)
+    _LT_AC_TAGVAR(archive_cmds_need_lc, $1)=no
+    ;;
+  tandem*)
+    case $cc_basename in
+      NCC)
+       # NonStop-UX NCC 3.20
+       # FIXME: insert proper C++ library support
+       _LT_AC_TAGVAR(ld_shlibs, $1)=no
+       ;;
+      *)
+       # FIXME: insert proper C++ library support
+       _LT_AC_TAGVAR(ld_shlibs, $1)=no
+       ;;
+    esac
+    ;;
+  vxworks*)
+    # FIXME: insert proper C++ library support
+    _LT_AC_TAGVAR(ld_shlibs, $1)=no
+    ;;
+  *)
+    # FIXME: insert proper C++ library support
+    _LT_AC_TAGVAR(ld_shlibs, $1)=no
+    ;;
+esac
+AC_MSG_RESULT([$_LT_AC_TAGVAR(ld_shlibs, $1)])
+test "$_LT_AC_TAGVAR(ld_shlibs, $1)" = no && can_build_shared=no
+
+_LT_AC_TAGVAR(GCC, $1)="$GXX"
+_LT_AC_TAGVAR(LD, $1)="$LD"
+
+AC_LIBTOOL_POSTDEP_PREDEP($1)
+AC_LIBTOOL_PROG_COMPILER_PIC($1)
+AC_LIBTOOL_PROG_CC_C_O($1)
+AC_LIBTOOL_SYS_HARD_LINK_LOCKS($1)
+AC_LIBTOOL_PROG_LD_SHLIBS($1)
+AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH($1)
+AC_LIBTOOL_SYS_LIB_STRIP
+AC_LIBTOOL_SYS_DYNAMIC_LINKER($1)
+AC_LIBTOOL_DLOPEN_SELF($1)
+
+AC_LIBTOOL_CONFIG($1)
+
+AC_LANG_POP
+CC=$lt_save_CC
+LDCXX=$LD
+LD=$lt_save_LD
+GCC=$lt_save_GCC
+with_gnu_ldcxx=$with_gnu_ld
+with_gnu_ld=$lt_save_with_gnu_ld
+lt_cv_path_LDCXX=$lt_cv_path_LD
+lt_cv_path_LD=$lt_save_path_LD
+lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld
+lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld
+])# AC_LIBTOOL_LANG_CXX_CONFIG
+
+# AC_LIBTOOL_POSTDEP_PREDEP([TAGNAME])
+# ------------------------
+# Figure out "hidden" library dependencies from verbose
+# compiler output when linking a shared library.
+# Parse the compiler output and extract the necessary
+# objects, libraries and library flags.
+AC_DEFUN([AC_LIBTOOL_POSTDEP_PREDEP],[
+dnl we can't use the lt_simple_compile_test_code here,
+dnl because it contains code intended for an executable,
+dnl not a library.  It's possible we should let each
+dnl tag define a new lt_????_link_test_code variable,
+dnl but it's only used here...
+ifelse([$1],[],[cat > conftest.$ac_ext <<EOF
+int a;
+void foo (void) { a = 0; }
+EOF
+],[$1],[CXX],[cat > conftest.$ac_ext <<EOF
+class Foo
+{
+public:
+  Foo (void) { a = 0; }
+private:
+  int a;
+};
+EOF
+],[$1],[F77],[cat > conftest.$ac_ext <<EOF
+      subroutine foo
+      implicit none
+      integer*4 a
+      a=0
+      return
+      end
+EOF
+],[$1],[GCJ],[cat > conftest.$ac_ext <<EOF
+public class foo {
+  private int a;
+  public void bar (void) {
+    a = 0;
+  }
+};
+EOF
+])
+dnl Parse the compiler output and extract the necessary
+dnl objects, libraries and library flags.
+if AC_TRY_EVAL(ac_compile); then
+  # Parse the compiler output and extract the necessary
+  # objects, libraries and library flags.
+
+  # Sentinel used to keep track of whether or not we are before
+  # the conftest object file.
+  pre_test_object_deps_done=no
+
+  # The `*' in the case matches for architectures that use `case' in
+  # $output_verbose_cmd can trigger glob expansion during the loop
+  # eval without this substitution.
+  output_verbose_link_cmd="`$echo \"X$output_verbose_link_cmd\" | $Xsed -e \"$no_glob_subst\"`"
+
+  for p in `eval $output_verbose_link_cmd`; do
+    case $p in
+
+    -L* | -R* | -l*)
+       # Some compilers place space between "-{L,R}" and the path.
+       # Remove the space.
+       if test $p = "-L" \
+         || test $p = "-R"; then
+        prev=$p
+        continue
+       else
+        prev=
+       fi
+
+       if test "$pre_test_object_deps_done" = no; then
+        case $p in
+        -L* | -R*)
+          # Internal compiler library paths should come after those
+          # provided the user.  The postdeps already come after the
+          # user supplied libs so there is no need to process them.
+          if test -z "$_LT_AC_TAGVAR(compiler_lib_search_path, $1)"; then
+            _LT_AC_TAGVAR(compiler_lib_search_path, $1)="${prev}${p}"
+          else
+            _LT_AC_TAGVAR(compiler_lib_search_path, $1)="${_LT_AC_TAGVAR(compiler_lib_search_path, $1)} ${prev}${p}"
+          fi
+          ;;
+        # The "-l" case would never come before the object being
+        # linked, so don't bother handling this case.
+        esac
+       else
+        if test -z "$_LT_AC_TAGVAR(postdeps, $1)"; then
+          _LT_AC_TAGVAR(postdeps, $1)="${prev}${p}"
+        else
+          _LT_AC_TAGVAR(postdeps, $1)="${_LT_AC_TAGVAR(postdeps, $1)} ${prev}${p}"
+        fi
+       fi
+       ;;
+
+    *.$objext)
+       # This assumes that the test object file only shows up
+       # once in the compiler output.
+       if test "$p" = "conftest.$objext"; then
+        pre_test_object_deps_done=yes
+        continue
+       fi
+
+       if test "$pre_test_object_deps_done" = no; then
+        if test -z "$_LT_AC_TAGVAR(predep_objects, $1)"; then
+          _LT_AC_TAGVAR(predep_objects, $1)="$p"
+        else
+          _LT_AC_TAGVAR(predep_objects, $1)="$_LT_AC_TAGVAR(predep_objects, $1) $p"
+        fi
+       else
+        if test -z "$_LT_AC_TAGVAR(postdep_objects, $1)"; then
+          _LT_AC_TAGVAR(postdep_objects, $1)="$p"
+        else
+          _LT_AC_TAGVAR(postdep_objects, $1)="$_LT_AC_TAGVAR(postdep_objects, $1) $p"
+        fi
+       fi
+       ;;
+
+    *) ;; # Ignore the rest.
+
+    esac
+  done
+
+  # Clean up.
+  rm -f a.out a.exe
+else
+  echo "libtool.m4: error: problem compiling $1 test program"
+fi
+
+$rm -f confest.$objext
+
+case " $_LT_AC_TAGVAR(postdeps, $1) " in
+*" -lc "*) _LT_AC_TAGVAR(archive_cmds_need_lc, $1)=no ;;
+esac
+])# AC_LIBTOOL_POSTDEP_PREDEP
+
+# AC_LIBTOOL_LANG_F77_CONFIG
+# ------------------------
+# Ensure that the configuration vars for the C compiler are
+# suitably defined.  Those variables are subsequently used by
+# AC_LIBTOOL_CONFIG to write the compiler configuration to `libtool'.
+AC_DEFUN([AC_LIBTOOL_LANG_F77_CONFIG], [_LT_AC_LANG_F77_CONFIG(F77)])
+AC_DEFUN([_LT_AC_LANG_F77_CONFIG],
+[AC_REQUIRE([AC_PROG_F77])
+AC_LANG_PUSH(Fortran 77)
+
+_LT_AC_TAGVAR(archive_cmds_need_lc, $1)=no
+_LT_AC_TAGVAR(allow_undefined_flag, $1)=
+_LT_AC_TAGVAR(always_export_symbols, $1)=no
+_LT_AC_TAGVAR(archive_expsym_cmds, $1)=
+_LT_AC_TAGVAR(export_dynamic_flag_spec, $1)=
+_LT_AC_TAGVAR(hardcode_direct, $1)=no
+_LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)=
+_LT_AC_TAGVAR(hardcode_libdir_flag_spec_ld, $1)=
+_LT_AC_TAGVAR(hardcode_libdir_separator, $1)=
+_LT_AC_TAGVAR(hardcode_minus_L, $1)=no
+_LT_AC_TAGVAR(hardcode_automatic, $1)=no
+_LT_AC_TAGVAR(module_cmds, $1)=
+_LT_AC_TAGVAR(module_expsym_cmds, $1)=
+_LT_AC_TAGVAR(link_all_deplibs, $1)=unknown
+_LT_AC_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_AC_TAGVAR(no_undefined_flag, $1)=
+_LT_AC_TAGVAR(whole_archive_flag_spec, $1)=
+_LT_AC_TAGVAR(enable_shared_with_static_runtimes, $1)=no
+
+# Source file extension for f77 test sources.
+ac_ext=f
+
+# Object file extension for compiled f77 test sources.
+objext=o
+_LT_AC_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="      subroutine t\n      return\n      end\n"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code="      program t\n      end\n"
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+_LT_AC_SYS_COMPILER
+
+# Allow CC to be a program name with arguments.
+lt_save_CC="$CC"
+CC=${F77-"f77"}
+compiler=$CC
+_LT_AC_TAGVAR(compiler, $1)=$CC
+cc_basename=`$echo X"$compiler" | $Xsed -e 's%^.*/%%'`
+
+AC_MSG_CHECKING([if libtool supports shared libraries])
+AC_MSG_RESULT([$can_build_shared])
+
+AC_MSG_CHECKING([whether to build shared libraries])
+test "$can_build_shared" = "no" && enable_shared=no
+
+# On AIX, shared libraries and static libraries use the same namespace, and
+# are all built from PIC.
+case "$host_os" in
+aix3*)
+  test "$enable_shared" = yes && enable_static=no
+  if test -n "$RANLIB"; then
+    archive_cmds="$archive_cmds~\$RANLIB \$lib"
+    postinstall_cmds='$RANLIB $lib'
+  fi
+  ;;
+aix4*)
+  test "$enable_shared" = yes && enable_static=no
+  ;;
+esac
+AC_MSG_RESULT([$enable_shared])
+
+AC_MSG_CHECKING([whether to build static libraries])
+# Make sure either enable_shared or enable_static is yes.
+test "$enable_shared" = yes || enable_static=yes
+AC_MSG_RESULT([$enable_static])
+
+test "$_LT_AC_TAGVAR(ld_shlibs, $1)" = no && can_build_shared=no
+
+_LT_AC_TAGVAR(GCC, $1)="$G77"
+_LT_AC_TAGVAR(LD, $1)="$LD"
+
+AC_LIBTOOL_PROG_COMPILER_PIC($1)
+AC_LIBTOOL_PROG_CC_C_O($1)
+AC_LIBTOOL_SYS_HARD_LINK_LOCKS($1)
+AC_LIBTOOL_PROG_LD_SHLIBS($1)
+AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH($1)
+AC_LIBTOOL_SYS_LIB_STRIP
+AC_LIBTOOL_SYS_DYNAMIC_LINKER($1)
+
+AC_LIBTOOL_CONFIG($1)
+
+AC_LANG_POP
+CC="$lt_save_CC"
+])# AC_LIBTOOL_LANG_F77_CONFIG
+
+
+# AC_LIBTOOL_LANG_GCJ_CONFIG
+# --------------------------
+# Ensure that the configuration vars for the C compiler are
+# suitably defined.  Those variables are subsequently used by
+# AC_LIBTOOL_CONFIG to write the compiler configuration to `libtool'.
+AC_DEFUN([AC_LIBTOOL_LANG_GCJ_CONFIG], [_LT_AC_LANG_GCJ_CONFIG(GCJ)])
+AC_DEFUN([_LT_AC_LANG_GCJ_CONFIG],
+[AC_LANG_SAVE
+
+# Source file extension for Java test sources.
+ac_ext=java
+
+# Object file extension for compiled Java test sources.
+objext=o
+_LT_AC_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="class foo {}\n"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='public class conftest { public static void main(String[] argv) {}; }\n'
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+_LT_AC_SYS_COMPILER
+
+# Allow CC to be a program name with arguments.
+lt_save_CC="$CC"
+CC=${GCJ-"gcj"}
+compiler=$CC
+_LT_AC_TAGVAR(compiler, $1)=$CC
+
+# GCJ did not exist at the time GCC didn't implicitly link libc in.
+_LT_AC_TAGVAR(archive_cmds_need_lc, $1)=no
+
+AC_LIBTOOL_PROG_COMPILER_NO_RTTI($1)
+AC_LIBTOOL_PROG_COMPILER_PIC($1)
+AC_LIBTOOL_PROG_CC_C_O($1)
+AC_LIBTOOL_SYS_HARD_LINK_LOCKS($1)
+AC_LIBTOOL_PROG_LD_SHLIBS($1)
+AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH($1)
+AC_LIBTOOL_SYS_LIB_STRIP
+AC_LIBTOOL_SYS_DYNAMIC_LINKER($1)
+AC_LIBTOOL_DLOPEN_SELF($1)
+
+AC_LIBTOOL_CONFIG($1)
+
+AC_LANG_RESTORE
+CC="$lt_save_CC"
+])# AC_LIBTOOL_LANG_GCJ_CONFIG
+
+
+# AC_LIBTOOL_LANG_RC_CONFIG
+# --------------------------
+# Ensure that the configuration vars for the Windows resource compiler are
+# suitably defined.  Those variables are subsequently used by
+# AC_LIBTOOL_CONFIG to write the compiler configuration to `libtool'.
+AC_DEFUN([AC_LIBTOOL_LANG_RC_CONFIG], [_LT_AC_LANG_RC_CONFIG(RC)])
+AC_DEFUN([_LT_AC_LANG_RC_CONFIG],
+[AC_LANG_SAVE
+
+# Source file extension for RC test sources.
+ac_ext=rc
+
+# Object file extension for compiled RC test sources.
+objext=o
+_LT_AC_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code='sample MENU { MENUITEM "&Soup", 100, CHECKED }\n'
+
+# Code to be used in simple link tests
+lt_simple_link_test_code="$lt_simple_compile_test_code"
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+_LT_AC_SYS_COMPILER
+
+# Allow CC to be a program name with arguments.
+lt_save_CC="$CC"
+CC=${RC-"windres"}
+compiler=$CC
+_LT_AC_TAGVAR(compiler, $1)=$CC
+_LT_AC_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes
+
+AC_LIBTOOL_CONFIG($1)
+
+AC_LANG_RESTORE
+CC="$lt_save_CC"
+])# AC_LIBTOOL_LANG_RC_CONFIG
+
+
+# AC_LIBTOOL_CONFIG([TAGNAME])
+# ----------------------------
+# If TAGNAME is not passed, then create an initial libtool script
+# with a default configuration from the untagged config vars.  Otherwise
+# add code to config.status for appending the configuration named by
+# TAGNAME from the matching tagged config vars.
+AC_DEFUN([AC_LIBTOOL_CONFIG],
+[# The else clause should only fire when bootstrapping the
+# libtool distribution, otherwise you forgot to ship ltmain.sh
+# with your package, and you will get complaints that there are
+# no rules to generate ltmain.sh.
+if test -f "$ltmain"; then
+  # See if we are running on zsh, and set the options which allow our commands through
+  # without removal of \ escapes.
+  if test -n "${ZSH_VERSION+set}" ; then
+    setopt NO_GLOB_SUBST
+  fi  
+  # Now quote all the things that may contain metacharacters while being
+  # careful not to overquote the AC_SUBSTed values.  We take copies of the
+  # variables and quote the copies for generation of the libtool script.
+  for var in echo old_CC old_CFLAGS AR AR_FLAGS EGREP RANLIB LN_S LTCC NM SED SHELL \
+    libname_spec library_names_spec soname_spec extract_expsyms_cmds \
+    old_striplib striplib file_magic_cmd finish_cmds finish_eval \
+    deplibs_check_method reload_flag reload_cmds need_locks \
+    lt_cv_sys_global_symbol_pipe lt_cv_sys_global_symbol_to_cdecl \
+    lt_cv_sys_global_symbol_to_c_name_address \
+    sys_lib_search_path_spec sys_lib_dlsearch_path_spec \
+    old_postinstall_cmds old_postuninstall_cmds \
+    _LT_AC_TAGVAR(compiler, $1) \
+    _LT_AC_TAGVAR(CC, $1) \
+    _LT_AC_TAGVAR(LD, $1) \
+    _LT_AC_TAGVAR(lt_prog_compiler_wl, $1) \
+    _LT_AC_TAGVAR(lt_prog_compiler_pic, $1) \
+    _LT_AC_TAGVAR(lt_prog_compiler_static, $1) \
+    _LT_AC_TAGVAR(lt_prog_compiler_no_builtin_flag, $1) \
+    _LT_AC_TAGVAR(export_dynamic_flag_spec, $1) \
+    _LT_AC_TAGVAR(thread_safe_flag_spec, $1) \
+    _LT_AC_TAGVAR(whole_archive_flag_spec, $1) \
+    _LT_AC_TAGVAR(enable_shared_with_static_runtimes, $1) \
+    _LT_AC_TAGVAR(old_archive_cmds, $1) \
+    _LT_AC_TAGVAR(old_archive_from_new_cmds, $1) \
+    _LT_AC_TAGVAR(predep_objects, $1) \
+    _LT_AC_TAGVAR(postdep_objects, $1) \
+    _LT_AC_TAGVAR(predeps, $1) \
+    _LT_AC_TAGVAR(postdeps, $1) \
+    _LT_AC_TAGVAR(compiler_lib_search_path, $1) \
+    _LT_AC_TAGVAR(archive_cmds, $1) \
+    _LT_AC_TAGVAR(archive_expsym_cmds, $1) \
+    _LT_AC_TAGVAR(postinstall_cmds, $1) \
+    _LT_AC_TAGVAR(postuninstall_cmds, $1) \
+    _LT_AC_TAGVAR(old_archive_from_expsyms_cmds, $1) \
+    _LT_AC_TAGVAR(allow_undefined_flag, $1) \
+    _LT_AC_TAGVAR(no_undefined_flag, $1) \
+    _LT_AC_TAGVAR(export_symbols_cmds, $1) \
+    _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1) \
+    _LT_AC_TAGVAR(hardcode_libdir_flag_spec_ld, $1) \
+    _LT_AC_TAGVAR(hardcode_libdir_separator, $1) \
+    _LT_AC_TAGVAR(hardcode_automatic, $1) \
+    _LT_AC_TAGVAR(module_cmds, $1) \
+    _LT_AC_TAGVAR(module_expsym_cmds, $1) \
+    _LT_AC_TAGVAR(lt_cv_prog_compiler_c_o, $1) \
+    _LT_AC_TAGVAR(exclude_expsyms, $1) \
+    _LT_AC_TAGVAR(include_expsyms, $1); do
+
+    case $var in
+    _LT_AC_TAGVAR(old_archive_cmds, $1) | \
+    _LT_AC_TAGVAR(old_archive_from_new_cmds, $1) | \
+    _LT_AC_TAGVAR(archive_cmds, $1) | \
+    _LT_AC_TAGVAR(archive_expsym_cmds, $1) | \
+    _LT_AC_TAGVAR(module_cmds, $1) | \
+    _LT_AC_TAGVAR(module_expsym_cmds, $1) | \   
+    _LT_AC_TAGVAR(old_archive_from_expsyms_cmds, $1) | \
+    _LT_AC_TAGVAR(export_symbols_cmds, $1) | \
+    extract_expsyms_cmds | reload_cmds | finish_cmds | \
+    postinstall_cmds | postuninstall_cmds | \
+    old_postinstall_cmds | old_postuninstall_cmds | \
+    sys_lib_search_path_spec | sys_lib_dlsearch_path_spec)
+      # Double-quote double-evaled strings.
+      eval "lt_$var=\\\"\`\$echo \"X\$$var\" | \$Xsed -e \"\$double_quote_subst\" -e \"\$sed_quote_subst\" -e \"\$delay_variable_subst\"\`\\\""
+      ;;
+    *)
+      eval "lt_$var=\\\"\`\$echo \"X\$$var\" | \$Xsed -e \"\$sed_quote_subst\"\`\\\""
+      ;;
+    esac
+  done
+
+  case $lt_echo in
+  *'\[$]0 --fallback-echo"')
+    lt_echo=`$echo "X$lt_echo" | $Xsed -e 's/\\\\\\\[$]0 --fallback-echo"[$]/[$]0 --fallback-echo"/'`
+    ;;
+  esac
+
+ifelse([$1], [],
+  [cfgfile="${ofile}T"
+  trap "$rm \"$cfgfile\"; exit 1" 1 2 15
+  $rm -f "$cfgfile"
+  AC_MSG_NOTICE([creating $ofile])],
+  [cfgfile="$ofile"])
+
+  cat <<__EOF__ >> "$cfgfile"
+ifelse([$1], [],
+[#! $SHELL
+
+# `$echo "$cfgfile" | sed 's%^.*/%%'` - Provide generalized library-building support services.
+# Generated automatically by $PROGRAM (GNU $PACKAGE $VERSION$TIMESTAMP)
+# NOTE: Changes made to this file will be lost: look at ltmain.sh.
+#
+# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001
+# Free Software Foundation, Inc.
+#
+# This file is part of GNU Libtool:
+# Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# A sed program that does not truncate output.
+SED=$lt_SED
+
+# Sed that helps us avoid accidentally triggering echo(1) options like -n.
+Xsed="$SED -e s/^X//"
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+if test "X\${CDPATH+set}" = Xset; then CDPATH=:; export CDPATH; fi
+
+# The names of the tagged configurations supported by this script.
+available_tags=
+
+# ### BEGIN LIBTOOL CONFIG],
+[# ### BEGIN LIBTOOL TAG CONFIG: $tagname])
+
+# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
+
+# Shell to use when invoking shell scripts.
+SHELL=$lt_SHELL
+
+# Whether or not to build shared libraries.
+build_libtool_libs=$enable_shared
+
+# Whether or not to build static libraries.
+build_old_libs=$enable_static
+
+# Whether or not to add -lc for building shared libraries.
+build_libtool_need_lc=$_LT_AC_TAGVAR(archive_cmds_need_lc, $1)
+
+# Whether or not to disallow shared libs when runtime libs are static
+allow_libtool_libs_with_static_runtimes=$_LT_AC_TAGVAR(enable_shared_with_static_runtimes, $1)
+
+# Whether or not to optimize for fast installation.
+fast_install=$enable_fast_install
+
+# The host system.
+host_alias=$host_alias
+host=$host
+
+# An echo program that does not interpret backslashes.
+echo=$lt_echo
+
+# The archiver.
+AR=$lt_AR
+AR_FLAGS=$lt_AR_FLAGS
+
+# A C compiler.
+LTCC=$lt_LTCC
+
+# A language-specific compiler.
+CC=$lt_[]_LT_AC_TAGVAR(compiler, $1)
+
+# Is the compiler the GNU C compiler?
+with_gcc=$_LT_AC_TAGVAR(GCC, $1)
+
+# An ERE matcher.
+EGREP=$lt_EGREP
+
+# The linker used to build libraries.
+LD=$lt_[]_LT_AC_TAGVAR(LD, $1)
+
+# Whether we need hard or soft links.
+LN_S=$lt_LN_S
+
+# A BSD-compatible nm program.
+NM=$lt_NM
+
+# A symbol stripping program
+STRIP=$STRIP
+
+# Used to examine libraries when file_magic_cmd begins "file"
+MAGIC_CMD=$MAGIC_CMD
+
+# Used on cygwin: DLL creation program.
+DLLTOOL="$DLLTOOL"
+
+# Used on cygwin: object dumper.
+OBJDUMP="$OBJDUMP"
+
+# Used on cygwin: assembler.
+AS="$AS"
+
+# The name of the directory that contains temporary libtool files.
+objdir=$objdir
+
+# How to create reloadable object files.
+reload_flag=$lt_reload_flag
+reload_cmds=$lt_reload_cmds
+
+# How to pass a linker flag through the compiler.
+wl=$lt_[]_LT_AC_TAGVAR(lt_prog_compiler_wl, $1)
+
+# Object file suffix (normally "o").
+objext="$ac_objext"
+
+# Old archive suffix (normally "a").
+libext="$libext"
+
+# Shared library suffix (normally ".so").
+shrext='$shrext'
+
+# Executable file suffix (normally "").
+exeext="$exeext"
+
+# Additional compiler flags for building library objects.
+pic_flag=$lt_[]_LT_AC_TAGVAR(lt_prog_compiler_pic, $1)
+pic_mode=$pic_mode
+
+# What is the maximum length of a command?
+max_cmd_len=$lt_cv_sys_max_cmd_len
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o=$lt_[]_LT_AC_TAGVAR(lt_cv_prog_compiler_c_o, $1)
+
+# Must we lock files when doing compilation ?
+need_locks=$lt_need_locks
+
+# Do we need the lib prefix for modules?
+need_lib_prefix=$need_lib_prefix
+
+# Do we need a version for libraries?
+need_version=$need_version
+
+# Whether dlopen is supported.
+dlopen_support=$enable_dlopen
+
+# Whether dlopen of programs is supported.
+dlopen_self=$enable_dlopen_self
+
+# Whether dlopen of statically linked programs is supported.
+dlopen_self_static=$enable_dlopen_self_static
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag=$lt_[]_LT_AC_TAGVAR(lt_prog_compiler_static, $1)
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=$lt_[]_LT_AC_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec=$lt_[]_LT_AC_TAGVAR(export_dynamic_flag_spec, $1)
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec=$lt_[]_LT_AC_TAGVAR(whole_archive_flag_spec, $1)
+
+# Compiler flag to generate thread-safe objects.
+thread_safe_flag_spec=$lt_[]_LT_AC_TAGVAR(thread_safe_flag_spec, $1)
+
+# Library versioning type.
+version_type=$version_type
+
+# Format of library name prefix.
+libname_spec=$lt_libname_spec
+
+# List of archive names.  First name is the real one, the rest are links.
+# The last name is the one that the linker finds with -lNAME.
+library_names_spec=$lt_library_names_spec
+
+# The coded name of the library, if different from the real name.
+soname_spec=$lt_soname_spec
+
+# Commands used to build and install an old-style archive.
+RANLIB=$lt_RANLIB
+old_archive_cmds=$lt_[]_LT_AC_TAGVAR(old_archive_cmds, $1)
+old_postinstall_cmds=$lt_old_postinstall_cmds
+old_postuninstall_cmds=$lt_old_postuninstall_cmds
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=$lt_[]_LT_AC_TAGVAR(old_archive_from_new_cmds, $1)
+
+# Create a temporary old-style archive to link instead of a shared archive.
+old_archive_from_expsyms_cmds=$lt_[]_LT_AC_TAGVAR(old_archive_from_expsyms_cmds, $1)
+
+# Commands used to build and install a shared archive.
+archive_cmds=$lt_[]_LT_AC_TAGVAR(archive_cmds, $1)
+archive_expsym_cmds=$lt_[]_LT_AC_TAGVAR(archive_expsym_cmds, $1)
+postinstall_cmds=$lt_postinstall_cmds
+postuninstall_cmds=$lt_postuninstall_cmds
+
+# Commands used to build a loadable module (assumed same as above if empty)
+module_cmds=$lt_[]_LT_AC_TAGVAR(module_cmds, $1)
+module_expsym_cmds=$lt_[]_LT_AC_TAGVAR(module_expsym_cmds, $1)
+
+# Commands to strip libraries.
+old_striplib=$lt_old_striplib
+striplib=$lt_striplib
+
+# Dependencies to place before the objects being linked to create a
+# shared library.
+predep_objects=$lt_[]_LT_AC_TAGVAR(predep_objects, $1)
+
+# Dependencies to place after the objects being linked to create a
+# shared library.
+postdep_objects=$lt_[]_LT_AC_TAGVAR(postdep_objects, $1)
+
+# Dependencies to place before the objects being linked to create a
+# shared library.
+predeps=$lt_[]_LT_AC_TAGVAR(predeps, $1)
+
+# Dependencies to place after the objects being linked to create a
+# shared library.
+postdeps=$lt_[]_LT_AC_TAGVAR(postdeps, $1)
+
+# The library search path used internally by the compiler when linking
+# a shared library.
+compiler_lib_search_path=$lt_[]_LT_AC_TAGVAR(compiler_lib_search_path, $1)
+
+# Method to check whether dependent libraries are shared objects.
+deplibs_check_method=$lt_deplibs_check_method
+
+# Command to use when deplibs_check_method == file_magic.
+file_magic_cmd=$lt_file_magic_cmd
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=$lt_[]_LT_AC_TAGVAR(allow_undefined_flag, $1)
+
+# Flag that forces no undefined symbols.
+no_undefined_flag=$lt_[]_LT_AC_TAGVAR(no_undefined_flag, $1)
+
+# Commands used to finish a libtool library installation in a directory.
+finish_cmds=$lt_finish_cmds
+
+# Same as above, but a single script fragment to be evaled but not shown.
+finish_eval=$lt_finish_eval
+
+# Take the output of nm and produce a listing of raw symbols and C names.
+global_symbol_pipe=$lt_lt_cv_sys_global_symbol_pipe
+
+# Transform the output of nm in a proper C declaration
+global_symbol_to_cdecl=$lt_lt_cv_sys_global_symbol_to_cdecl
+
+# Transform the output of nm in a C name address pair
+global_symbol_to_c_name_address=$lt_lt_cv_sys_global_symbol_to_c_name_address
+
+# This is the shared library runtime path variable.
+runpath_var=$runpath_var
+
+# This is the shared library path variable.
+shlibpath_var=$shlibpath_var
+
+# Is shlibpath searched before the hard-coded library search path?
+shlibpath_overrides_runpath=$shlibpath_overrides_runpath
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=$_LT_AC_TAGVAR(hardcode_action, $1)
+
+# Whether we should hardcode library paths into libraries.
+hardcode_into_libs=$hardcode_into_libs
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist.
+hardcode_libdir_flag_spec=$lt_[]_LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)
+
+# If ld is used when linking, flag to hardcode \$libdir into
+# a binary during linking. This must work even if \$libdir does
+# not exist.
+hardcode_libdir_flag_spec_ld=$lt_[]_LT_AC_TAGVAR(hardcode_libdir_flag_spec_ld, $1)
+
+# Whether we need a single -rpath flag with a separated argument.
+hardcode_libdir_separator=$lt_[]_LT_AC_TAGVAR(hardcode_libdir_separator, $1)
+
+# Set to yes if using DIR/libNAME${shared_ext} during linking hardcodes DIR into the
+# resulting binary.
+hardcode_direct=$_LT_AC_TAGVAR(hardcode_direct, $1)
+
+# Set to yes if using the -LDIR flag during linking hardcodes DIR into the
+# resulting binary.
+hardcode_minus_L=$_LT_AC_TAGVAR(hardcode_minus_L, $1)
+
+# Set to yes if using SHLIBPATH_VAR=DIR during linking hardcodes DIR into
+# the resulting binary.
+hardcode_shlibpath_var=$_LT_AC_TAGVAR(hardcode_shlibpath_var, $1)
+
+# Set to yes if building a shared library automatically hardcodes DIR into the library
+# and all subsequent libraries and executables linked against it.
+hardcode_automatic=$_LT_AC_TAGVAR(hardcode_automatic, $1)
+
+# Variables whose values should be saved in libtool wrapper scripts and
+# restored at relink time.
+variables_saved_for_relink="$variables_saved_for_relink"
+
+# Whether libtool must link a program against all its dependency libraries.
+link_all_deplibs=$_LT_AC_TAGVAR(link_all_deplibs, $1)
+
+# Compile-time system search path for libraries
+sys_lib_search_path_spec=$lt_sys_lib_search_path_spec
+
+# Run-time system search path for libraries
+sys_lib_dlsearch_path_spec=$lt_sys_lib_dlsearch_path_spec
+
+# Fix the shell variable \$srcfile for the compiler.
+fix_srcfile_path="$_LT_AC_TAGVAR(fix_srcfile_path, $1)"
+
+# Set to yes if exported symbols are required.
+always_export_symbols=$_LT_AC_TAGVAR(always_export_symbols, $1)
+
+# The commands to list exported symbols.
+export_symbols_cmds=$lt_[]_LT_AC_TAGVAR(export_symbols_cmds, $1)
+
+# The commands to extract the exported symbol list from a shared archive.
+extract_expsyms_cmds=$lt_extract_expsyms_cmds
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms=$lt_[]_LT_AC_TAGVAR(exclude_expsyms, $1)
+
+# Symbols that must always be exported.
+include_expsyms=$lt_[]_LT_AC_TAGVAR(include_expsyms, $1)
+
+ifelse([$1],[],
+[# ### END LIBTOOL CONFIG],
+[# ### END LIBTOOL TAG CONFIG: $tagname])
+
+__EOF__
+
+ifelse([$1],[], [
+  case $host_os in
+  aix3*)
+    cat <<\EOF >> "$cfgfile"
+
+# AIX sometimes has problems with the GCC collect2 program.  For some
+# reason, if we set the COLLECT_NAMES environment variable, the problems
+# vanish in a puff of smoke.
+if test "X${COLLECT_NAMES+set}" != Xset; then
+  COLLECT_NAMES=
+  export COLLECT_NAMES
+fi
+EOF
+    ;;
+  esac
+
+  # We use sed instead of cat because bash on DJGPP gets confused if
+  # if finds mixed CR/LF and LF-only lines.  Since sed operates in
+  # text mode, it properly converts lines to CR/LF.  This bash problem
+  # is reportedly fixed, but why not run on old versions too?
+  sed '$q' "$ltmain" >> "$cfgfile" || (rm -f "$cfgfile"; exit 1)
+
+  mv -f "$cfgfile" "$ofile" || \
+    (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
+  chmod +x "$ofile"
+])
+else
+  # If there is no Makefile yet, we rely on a make rule to execute
+  # `config.status --recheck' to rerun these tests and create the
+  # libtool script then.
+  test -f Makefile && make "$ltmain"
+fi
+])# AC_LIBTOOL_CONFIG
+
+
+# AC_LIBTOOL_PROG_COMPILER_NO_RTTI([TAGNAME])
+# -------------------------------------------
+AC_DEFUN([AC_LIBTOOL_PROG_COMPILER_NO_RTTI],
+[AC_REQUIRE([_LT_AC_SYS_COMPILER])dnl
+
+_LT_AC_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
+
+if test "$GCC" = yes; then
+  _LT_AC_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin'
+
+  AC_LIBTOOL_COMPILER_OPTION([if $compiler supports -fno-rtti -fno-exceptions],
+    lt_cv_prog_compiler_rtti_exceptions,
+    [-fno-rtti -fno-exceptions], [],
+    [_LT_AC_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)="$_LT_AC_TAGVAR(lt_prog_compiler_no_builtin_flag, $1) -fno-rtti -fno-exceptions"])
+fi
+])# AC_LIBTOOL_PROG_COMPILER_NO_RTTI
+
+
+# AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE
+# ---------------------------------
+AC_DEFUN([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE],
+[AC_REQUIRE([AC_CANONICAL_HOST])
+AC_REQUIRE([AC_PROG_NM])
+AC_REQUIRE([AC_OBJEXT])
+# Check for command to grab the raw symbol name followed by C symbol from nm.
+AC_MSG_CHECKING([command to parse $NM output from $compiler object])
+AC_CACHE_VAL([lt_cv_sys_global_symbol_pipe],
+[
+# These are sane defaults that work on at least a few old systems.
+# [They come from Ultrix.  What could be older than Ultrix?!! ;)]
+
+# Character class describing NM global symbol codes.
+symcode='[[BCDEGRST]]'
+
+# Regexp to match symbols that can be accessed directly from C.
+sympat='\([[_A-Za-z]][[_A-Za-z0-9]]*\)'
+
+# Transform the above into a raw symbol and a C symbol.
+symxfrm='\1 \2\3 \3'
+
+# Transform an extracted symbol line into a proper C declaration
+lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^. .* \(.*\)$/extern int \1;/p'"
+
+# Transform an extracted symbol line into symbol name and symbol address
+lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([[^ ]]*\) $/  {\\\"\1\\\", (lt_ptr) 0},/p' -e 's/^$symcode \([[^ ]]*\) \([[^ ]]*\)$/  {\"\2\", (lt_ptr) \&\2},/p'"
+
+# Define system-specific variables.
+case $host_os in
+aix*)
+  symcode='[[BCDT]]'
+  ;;
+cygwin* | mingw* | pw32*)
+  symcode='[[ABCDGISTW]]'
+  ;;
+hpux*) # Its linker distinguishes data from code symbols
+  if test "$host_cpu" = ia64; then
+    symcode='[[ABCDEGRST]]'
+  fi
+  lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern int \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'"
+  lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([[^ ]]*\) $/  {\\\"\1\\\", (lt_ptr) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/  {\"\2\", (lt_ptr) \&\2},/p'"
+  ;;
+irix* | nonstopux*)
+  symcode='[[BCDEGRST]]'
+  ;;
+osf*)
+  symcode='[[BCDEGQRST]]'
+  ;;
+solaris* | sysv5*)
+  symcode='[[BDRT]]'
+  ;;
+sysv4)
+  symcode='[[DFNSTU]]'
+  ;;
+esac
+
+# Handle CRLF in mingw tool chain
+opt_cr=
+case $build_os in
+mingw*)
+  opt_cr=`echo 'x\{0,1\}' | tr x '\015'` # option cr in regexp
+  ;;
+esac
+
+# If we're using GNU nm, then use its standard symbol codes.
+case `$NM -V 2>&1` in
+*GNU* | *'with BFD'*)
+  symcode='[[ABCDGIRSTW]]' ;;
+esac
+
+# Try without a prefix undercore, then with it.
+for ac_symprfx in "" "_"; do
+
+  # Write the raw and C identifiers.
+  lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[     ]]\($symcode$symcode*\)[[       ]][[    ]]*\($ac_symprfx\)$sympat$opt_cr$/$symxfrm/p'"
+
+  # Check to see that the pipe works correctly.
+  pipe_works=no
+
+  rm -f conftest*
+  cat > conftest.$ac_ext <<EOF
+#ifdef __cplusplus
+extern "C" {
+#endif
+char nm_test_var;
+void nm_test_func(){}
+#ifdef __cplusplus
+}
+#endif
+int main(){nm_test_var='a';nm_test_func();return(0);}
+EOF
+
+  if AC_TRY_EVAL(ac_compile); then
+    # Now try to grab the symbols.
+    nlist=conftest.nm
+    if AC_TRY_EVAL(NM conftest.$ac_objext \| $lt_cv_sys_global_symbol_pipe \> $nlist) && test -s "$nlist"; then
+      # Try sorting and uniquifying the output.
+      if sort "$nlist" | uniq > "$nlist"T; then
+       mv -f "$nlist"T "$nlist"
+      else
+       rm -f "$nlist"T
+      fi
+
+      # Make sure that we snagged all the symbols we need.
+      if grep ' nm_test_var$' "$nlist" >/dev/null; then
+       if grep ' nm_test_func$' "$nlist" >/dev/null; then
+         cat <<EOF > conftest.$ac_ext
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+EOF
+         # Now generate the symbol file.
+         eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | grep -v main >> conftest.$ac_ext'
+
+         cat <<EOF >> conftest.$ac_ext
+#if defined (__STDC__) && __STDC__
+# define lt_ptr_t void *
+#else
+# define lt_ptr_t char *
+# define const
+#endif
+
+/* The mapping between symbol names and symbols. */
+const struct {
+  const char *name;
+  lt_ptr_t address;
+}
+lt_preloaded_symbols[[]] =
+{
+EOF
+         $SED "s/^$symcode$symcode* \(.*\) \(.*\)$/  {\"\2\", (lt_ptr_t) \&\2},/" < "$nlist" | grep -v main >> conftest.$ac_ext
+         cat <<\EOF >> conftest.$ac_ext
+  {0, (lt_ptr_t) 0}
+};
+
+#ifdef __cplusplus
+}
+#endif
+EOF
+         # Now try linking the two files.
+         mv conftest.$ac_objext conftstm.$ac_objext
+         lt_save_LIBS="$LIBS"
+         lt_save_CFLAGS="$CFLAGS"
+         LIBS="conftstm.$ac_objext"
+         CFLAGS="$CFLAGS$_LT_AC_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)"
+         if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext}; then
+           pipe_works=yes
+         fi
+         LIBS="$lt_save_LIBS"
+         CFLAGS="$lt_save_CFLAGS"
+       else
+         echo "cannot find nm_test_func in $nlist" >&AS_MESSAGE_LOG_FD
+       fi
+      else
+       echo "cannot find nm_test_var in $nlist" >&AS_MESSAGE_LOG_FD
+      fi
+    else
+      echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD
+    fi
+  else
+    echo "$progname: failed program was:" >&AS_MESSAGE_LOG_FD
+    cat conftest.$ac_ext >&5
+  fi
+  rm -f conftest* conftst*
+
+  # Do not use the global_symbol_pipe unless it works.
+  if test "$pipe_works" = yes; then
+    break
+  else
+    lt_cv_sys_global_symbol_pipe=
+  fi
+done
+])
+if test -z "$lt_cv_sys_global_symbol_pipe"; then
+  lt_cv_sys_global_symbol_to_cdecl=
+fi
+if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
+  AC_MSG_RESULT(failed)
+else
+  AC_MSG_RESULT(ok)
+fi
+]) # AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE
+
+
+# AC_LIBTOOL_PROG_COMPILER_PIC([TAGNAME])
+# ---------------------------------------
+AC_DEFUN([AC_LIBTOOL_PROG_COMPILER_PIC],
+[_LT_AC_TAGVAR(lt_prog_compiler_wl, $1)=
+_LT_AC_TAGVAR(lt_prog_compiler_pic, $1)=
+_LT_AC_TAGVAR(lt_prog_compiler_static, $1)=
+
+AC_MSG_CHECKING([for $compiler option to produce PIC])
+ ifelse([$1],[CXX],[
+  # C++ specific cases for pic, static, wl, etc.
+  if test "$GXX" = yes; then
+    _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+    _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-static'
+
+    case $host_os in
+    aix*)
+      # All AIX code is PIC.
+      if test "$host_cpu" = ia64; then
+       # AIX 5 now supports IA64 processor
+       _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      fi
+      ;;
+    amigaos*)
+      # FIXME: we need at least 68020 code to build shared libraries, but
+      # adding the `-m68020' flag to GCC prevents building anything better,
+      # like `-m68040'.
+      _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
+      ;;
+    beos* | cygwin* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+    mingw* | os2* | pw32*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'
+      ;;
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
+      ;;
+    *djgpp*)
+      # DJGPP does not support shared libraries at all
+      _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)=
+      ;;
+    sysv4*MP*)
+      if test -d /usr/nec; then
+       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic
+      fi
+      ;;
+    hpux*)
+      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
+      # not for PA HP-UX.
+      case "$host_cpu" in
+      hppa*64*|ia64*)
+       ;;
+      *)
+       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+       ;;
+      esac
+      ;;
+    *)
+      _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+      ;;
+    esac
+  else
+    case $host_os in
+      aix4* | aix5*)
+       # All AIX code is PIC.
+       if test "$host_cpu" = ia64; then
+         # AIX 5 now supports IA64 processor
+         _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+       else
+         _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp'
+       fi
+       ;;
+      chorus*)
+       case $cc_basename in
+       cxch68)
+         # Green Hills C++ Compiler
+         # _LT_AC_TAGVAR(lt_prog_compiler_static, $1)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a"
+         ;;
+       esac
+       ;;
+      dgux*)
+       case $cc_basename in
+         ec++)
+           _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+           ;;
+         ghcx)
+           # Green Hills C++ Compiler
+           _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+           ;;
+         *)
+           ;;
+       esac
+       ;;
+      freebsd*)
+       # FreeBSD uses GNU C++
+       ;;
+      hpux9* | hpux10* | hpux11*)
+       case $cc_basename in
+         CC)
+           _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+           _LT_AC_TAGVAR(lt_prog_compiler_static, $1)="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
+           if test "$host_cpu" != ia64; then
+             _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
+           fi
+           ;;
+         aCC)
+           _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+           _LT_AC_TAGVAR(lt_prog_compiler_static, $1)="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
+           case "$host_cpu" in
+           hppa*64*|ia64*)
+             # +Z the default
+             ;;
+           *)
+             _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
+             ;;
+           esac
+           ;;
+         *)
+           ;;
+       esac
+       ;;
+      irix5* | irix6* | nonstopux*)
+       case $cc_basename in
+         CC)
+           _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+           _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+           # CC pic flag -KPIC is the default.
+           ;;
+         *)
+           ;;
+       esac
+       ;;
+      linux*)
+       case $cc_basename in
+         KCC)
+           # KAI C++ Compiler
+           _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,'
+           _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+           ;;
+         icpc)
+           # Intel C++
+           _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+           _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+           _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-static'
+           ;; 
+         cxx)
+           # Compaq C++
+           # Make sure the PIC flag is empty.  It appears that all Alpha
+           # Linux and Compaq Tru64 Unix objects are PIC.
+           _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)=
+           _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+           ;;
+         *)
+           ;;
+       esac
+       ;;
+      lynxos*)
+       ;;
+      m88k*)
+       ;;
+      mvs*)
+       case $cc_basename in
+         cxx)
+           _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-W c,exportall'
+           ;;
+         *)
+           ;;
+       esac
+       ;;
+      netbsd*)
+       ;;
+      osf3* | osf4* | osf5*)
+       case $cc_basename in
+         KCC)
+           _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,'
+           ;;
+         RCC)
+           # Rational C++ 2.4.1
+           _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+           ;;
+         cxx)
+           # Digital/Compaq C++
+           _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+           # Make sure the PIC flag is empty.  It appears that all Alpha
+           # Linux and Compaq Tru64 Unix objects are PIC.
+           _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)=
+           _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+           ;;
+         *)
+           ;;
+       esac
+       ;;
+      psos*)
+       ;;
+      sco*)
+       case $cc_basename in
+         CC)
+           _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+           ;;
+         *)
+           ;;
+       esac
+       ;;
+      solaris*)
+       case $cc_basename in
+         CC)
+           # Sun C++ 4.2, 5.x and Centerline C++
+           _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+           _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+           _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
+           ;;
+         gcx)
+           # Green Hills C++ Compiler
+           _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
+           ;;
+         *)
+           ;;
+       esac
+       ;;
+      sunos4*)
+       case $cc_basename in
+         CC)
+           # Sun C++ 4.x
+           _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+           _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+           ;;
+         lcc)
+           # Lucid
+           _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+           ;;
+         *)
+           ;;
+       esac
+       ;;
+      tandem*)
+       case $cc_basename in
+         NCC)
+           # NonStop-UX NCC 3.20
+           _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+           ;;
+         *)
+           ;;
+       esac
+       ;;
+      unixware*)
+       ;;
+      vxworks*)
+       ;;
+      *)
+       _LT_AC_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
+       ;;
+    esac
+  fi
+],
+[
+  if test "$GCC" = yes; then
+    _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+    _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-static'
+
+    case $host_os in
+      aix*)
+      # All AIX code is PIC.
+      if test "$host_cpu" = ia64; then
+       # AIX 5 now supports IA64 processor
+       _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      fi
+      ;;
+
+    amigaos*)
+      # FIXME: we need at least 68020 code to build shared libraries, but
+      # adding the `-m68020' flag to GCC prevents building anything better,
+      # like `-m68040'.
+      _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
+      ;;
+
+    beos* | cygwin* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+
+    mingw* | pw32* | os2*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'
+      ;;
+
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
+      ;;
+
+    msdosdjgpp*)
+      # Just because we use GCC doesn't mean we suddenly get shared libraries
+      # on systems that don't support them.
+      _LT_AC_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
+      enable_shared=no
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic
+      fi
+      ;;
+
+    hpux*)
+      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
+      # not for PA HP-UX.
+      case "$host_cpu" in
+      hppa*64*|ia64*)
+       # +Z the default
+       ;;
+      *)
+       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+       ;;
+      esac
+      ;;
+
+    *)
+      _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+      ;;
+    esac
+  else
+    # PORTME Check for flag to pass linker flags through the system compiler.
+    case $host_os in
+    aix*)
+      _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      if test "$host_cpu" = ia64; then
+       # AIX 5 now supports IA64 processor
+       _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      else
+       _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp'
+      fi
+      ;;
+
+    mingw* | pw32* | os2*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'
+      ;;
+
+    hpux9* | hpux10* | hpux11*)
+      _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
+      # not for PA HP-UX.
+      case "$host_cpu" in
+      hppa*64*|ia64*)
+       # +Z the default
+       ;;
+      *)
+       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
+       ;;
+      esac
+      # Is there a better lt_prog_compiler_static that works with the bundled CC?
+      _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive'
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      # PIC (with -KPIC) is the default.
+      _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+      ;;
+
+    newsos6)
+      _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+      _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    linux*)
+      case $CC in
+      icc|ecc)
+       _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+       _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-static'
+        ;;
+      ccc)
+        _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+        # All Alpha code is PIC.
+        _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+        ;;
+      esac
+      ;;
+
+    osf3* | osf4* | osf5*)
+      _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      # All OSF/1 code is PIC.
+      _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+      ;;
+
+    sco3.2v5*)
+      _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-Kpic'
+      _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-dn'
+      ;;
+
+    solaris*)
+      _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+      _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    sunos4*)
+      _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
+      _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
+      _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+      _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+      _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec ;then
+       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-Kconform_pic'
+       _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      fi
+      ;;
+
+    uts4*)
+      _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+      _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    *)
+      _LT_AC_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
+      ;;
+    esac
+  fi
+])
+AC_MSG_RESULT([$_LT_AC_TAGVAR(lt_prog_compiler_pic, $1)])
+
+#
+# Check to make sure the PIC flag actually works.
+#
+if test -n "$_LT_AC_TAGVAR(lt_prog_compiler_pic, $1)"; then
+  AC_LIBTOOL_COMPILER_OPTION([if $compiler PIC flag $_LT_AC_TAGVAR(lt_prog_compiler_pic, $1) works],
+    _LT_AC_TAGVAR(lt_prog_compiler_pic_works, $1),
+    [$_LT_AC_TAGVAR(lt_prog_compiler_pic, $1)ifelse([$1],[],[ -DPIC],[ifelse([$1],[CXX],[ -DPIC],[])])], [],
+    [case $_LT_AC_TAGVAR(lt_prog_compiler_pic, $1) in
+     "" | " "*) ;;
+     *) _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)=" $_LT_AC_TAGVAR(lt_prog_compiler_pic, $1)" ;;
+     esac],
+    [_LT_AC_TAGVAR(lt_prog_compiler_pic, $1)=
+     _LT_AC_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no])
+fi
+case "$host_os" in
+  # For platforms which do not support PIC, -DPIC is meaningless:
+  *djgpp*)
+    _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)=
+    ;;
+  *)
+    _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)="$_LT_AC_TAGVAR(lt_prog_compiler_pic, $1)ifelse([$1],[],[ -DPIC],[ifelse([$1],[CXX],[ -DPIC],[])])"
+    ;;
+esac
+])
+
+
+# AC_LIBTOOL_PROG_LD_SHLIBS([TAGNAME])
+# ------------------------------------
+# See if the linker supports building shared libraries.
+AC_DEFUN([AC_LIBTOOL_PROG_LD_SHLIBS],
+[AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries])
+ifelse([$1],[CXX],[
+  _LT_AC_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  case $host_os in
+  aix4* | aix5*)
+    # If we're using GNU nm, then we don't want the "-C" option.
+    # -C means demangle to AIX nm, but means don't demangle with GNU nm
+    if $NM -V 2>&1 | grep 'GNU' > /dev/null; then
+      _LT_AC_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\[$]2 == "T") || (\[$]2 == "D") || (\[$]2 == "B")) && ([substr](\[$]3,1,1) != ".")) { print \[$]3 } }'\'' | sort -u > $export_symbols'
+    else
+      _LT_AC_TAGVAR(export_symbols_cmds, $1)='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\[$]2 == "T") || (\[$]2 == "D") || (\[$]2 == "B")) && ([substr](\[$]3,1,1) != ".")) { print \[$]3 } }'\'' | sort -u > $export_symbols'
+    fi
+    ;;
+  pw32*)
+    _LT_AC_TAGVAR(export_symbols_cmds, $1)="$ltdll_cmds"
+  ;;
+  cygwin* | mingw*)
+    _LT_AC_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGS]] /s/.* \([[^ ]]*\)/\1 DATA/'\'' | $SED -e '\''/^[[AITW]] /s/.* //'\'' | sort | uniq > $export_symbols'
+  ;;
+  *)
+    _LT_AC_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  ;;
+  esac
+],[
+  runpath_var=
+  _LT_AC_TAGVAR(allow_undefined_flag, $1)=
+  _LT_AC_TAGVAR(enable_shared_with_static_runtimes, $1)=no
+  _LT_AC_TAGVAR(archive_cmds, $1)=
+  _LT_AC_TAGVAR(archive_expsym_cmds, $1)=
+  _LT_AC_TAGVAR(old_archive_From_new_cmds, $1)=
+  _LT_AC_TAGVAR(old_archive_from_expsyms_cmds, $1)=
+  _LT_AC_TAGVAR(export_dynamic_flag_spec, $1)=
+  _LT_AC_TAGVAR(whole_archive_flag_spec, $1)=
+  _LT_AC_TAGVAR(thread_safe_flag_spec, $1)=
+  _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)=
+  _LT_AC_TAGVAR(hardcode_libdir_flag_spec_ld, $1)=
+  _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=
+  _LT_AC_TAGVAR(hardcode_direct, $1)=no
+  _LT_AC_TAGVAR(hardcode_minus_L, $1)=no
+  _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
+  _LT_AC_TAGVAR(link_all_deplibs, $1)=unknown
+  _LT_AC_TAGVAR(hardcode_automatic, $1)=no
+  _LT_AC_TAGVAR(module_cmds, $1)=
+  _LT_AC_TAGVAR(module_expsym_cmds, $1)=  
+  _LT_AC_TAGVAR(always_export_symbols, $1)=no
+  _LT_AC_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  # include_expsyms should be a list of space-separated symbols to be *always*
+  # included in the symbol list
+  _LT_AC_TAGVAR(include_expsyms, $1)=
+  # exclude_expsyms can be an extended regexp of symbols to exclude
+  # it will be wrapped by ` (' and `)$', so one must not match beginning or
+  # end of line.  Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc',
+  # as well as any symbol that contains `d'.
+  _LT_AC_TAGVAR(exclude_expsyms, $1)="_GLOBAL_OFFSET_TABLE_"
+  # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
+  # platforms (ab)use it in PIC code, but their linkers get confused if
+  # the symbol is explicitly referenced.  Since portable code cannot
+  # rely on this symbol name, it's probably fine to never include it in
+  # preloaded symbol tables.
+  extract_expsyms_cmds=
+
+  case $host_os in
+  cygwin* | mingw* | pw32*)
+    # FIXME: the MSVC++ port hasn't been tested in a loooong time
+    # When not using gcc, we currently assume that we are using
+    # Microsoft Visual C++.
+    if test "$GCC" != yes; then
+      with_gnu_ld=no
+    fi
+    ;;
+  openbsd*)
+    with_gnu_ld=no
+    ;;
+  esac
+
+  _LT_AC_TAGVAR(ld_shlibs, $1)=yes
+  if test "$with_gnu_ld" = yes; then
+    # If archive_cmds runs LD, not CC, wlarc should be empty
+    wlarc='${wl}'
+
+    # See if GNU ld supports shared libraries.
+    case $host_os in
+    aix3* | aix4* | aix5*)
+      # On AIX/PPC, the GNU linker is very broken
+      if test "$host_cpu" != ia64; then
+       _LT_AC_TAGVAR(ld_shlibs, $1)=no
+       cat <<EOF 1>&2
+
+*** Warning: the GNU linker, at least up to release 2.9.1, is reported
+*** to be unable to reliably create shared libraries on AIX.
+*** Therefore, libtool is disabling shared libraries support.  If you
+*** really care for shared libraries, you may want to modify your PATH
+*** so that a non-GNU linker is found, and then restart.
+
+EOF
+      fi
+      ;;
+
+    amigaos*)
+      _LT_AC_TAGVAR(archive_cmds, $1)='$rm $output_objdir/a2ixlibrary.data~$echo "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$echo "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$echo "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$echo "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+      _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_AC_TAGVAR(hardcode_minus_L, $1)=yes
+
+      # Samuel A. Falvo II <kc5tja@dolphin.openprojects.net> reports
+      # that the semantics of dynamic libraries on AmigaOS, at least up
+      # to version 4, is to share data among multiple programs linked
+      # with the same dynamic library.  Since this doesn't match the
+      # behavior of shared libraries on other platforms, we can't use
+      # them.
+      _LT_AC_TAGVAR(ld_shlibs, $1)=no
+      ;;
+
+    beos*)
+      if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
+       _LT_AC_TAGVAR(allow_undefined_flag, $1)=unsupported
+       # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
+       # support --undefined.  This deserves some investigation.  FIXME
+       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+      else
+       _LT_AC_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+
+    cygwin* | mingw* | pw32*)
+      # _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
+      # as there is no search path for DLLs.
+      _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_AC_TAGVAR(allow_undefined_flag, $1)=unsupported
+      _LT_AC_TAGVAR(always_export_symbols, $1)=no
+      _LT_AC_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+      _LT_AC_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGS]] /s/.* \([[^ ]]*\)/\1 DATA/'\'' | $SED -e '\''/^[[AITW]] /s/.* //'\'' | sort | uniq > $export_symbols'
+
+      if $LD --help 2>&1 | grep 'auto-import' > /dev/null; then
+        _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--image-base=0x10000000 ${wl}--out-implib,$lib'
+       # If the export-symbols file already is a .def file (1st line
+       # is EXPORTS), use it as is; otherwise, prepend...
+       _LT_AC_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+         cp $export_symbols $output_objdir/$soname.def;
+       else
+         echo EXPORTS > $output_objdir/$soname.def;
+         cat $export_symbols >> $output_objdir/$soname.def;
+       fi~
+       $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--image-base=0x10000000  ${wl}--out-implib,$lib'
+      else
+       ld_shlibs=no
+      fi
+      ;;
+
+    netbsd*)
+      if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
+       _LT_AC_TAGVAR(archive_cmds, $1)='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
+       wlarc=
+      else
+       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+       _LT_AC_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      fi
+      ;;
+
+    solaris* | sysv5*)
+      if $LD -v 2>&1 | grep 'BFD 2\.8' > /dev/null; then
+       _LT_AC_TAGVAR(ld_shlibs, $1)=no
+       cat <<EOF 1>&2
+
+*** Warning: The releases 2.8.* of the GNU linker cannot reliably
+*** create shared libraries on Solaris systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.9.1 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+EOF
+      elif $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
+       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+       _LT_AC_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+       _LT_AC_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+
+    sunos4*)
+      _LT_AC_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      wlarc=
+      _LT_AC_TAGVAR(hardcode_direct, $1)=yes
+      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+  linux*)
+    if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
+        tmp_archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+       _LT_AC_TAGVAR(archive_cmds, $1)="$tmp_archive_cmds"
+      supports_anon_versioning=no
+      case `$LD -v 2>/dev/null` in
+        *\ [01].* | *\ 2.[[0-9]].* | *\ 2.10.*) ;; # catch versions < 2.11
+        *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
+        *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
+        *\ 2.11.*) ;; # other 2.11 versions
+        *) supports_anon_versioning=yes ;;
+      esac
+      if test $supports_anon_versioning = yes; then
+        _LT_AC_TAGVAR(archive_expsym_cmds, $1)='$echo "{ global:" > $output_objdir/$libname.ver~
+cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+$echo "local: *; };" >> $output_objdir/$libname.ver~
+        $CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
+      else
+        _LT_AC_TAGVAR(archive_expsym_cmds, $1)="$tmp_archive_cmds"
+      fi
+    else
+      _LT_AC_TAGVAR(ld_shlibs, $1)=no
+    fi
+    ;;
+
+    *)
+      if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
+       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+       _LT_AC_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+       _LT_AC_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+    esac
+
+    if test "$_LT_AC_TAGVAR(ld_shlibs, $1)" = yes; then
+      runpath_var=LD_RUN_PATH
+      _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}--rpath ${wl}$libdir'
+      _LT_AC_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
+      # ancient GNU ld didn't support --whole-archive et. al.
+      if $LD --help 2>&1 | grep 'no-whole-archive' > /dev/null; then
+       _LT_AC_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+      else
+       _LT_AC_TAGVAR(whole_archive_flag_spec, $1)=
+      fi
+    fi
+  else
+    # PORTME fill in a description of your system's linker (not GNU ld)
+    case $host_os in
+    aix3*)
+      _LT_AC_TAGVAR(allow_undefined_flag, $1)=unsupported
+      _LT_AC_TAGVAR(always_export_symbols, $1)=yes
+      _LT_AC_TAGVAR(archive_expsym_cmds, $1)='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
+      # Note: this linker hardcodes the directories in LIBPATH if there
+      # are no directories specified by -L.
+      _LT_AC_TAGVAR(hardcode_minus_L, $1)=yes
+      if test "$GCC" = yes && test -z "$link_static_flag"; then
+       # Neither direct hardcoding nor static linking is supported with a
+       # broken collect2.
+       _LT_AC_TAGVAR(hardcode_direct, $1)=unsupported
+      fi
+      ;;
+
+    aix4* | aix5*)
+      if test "$host_cpu" = ia64; then
+       # On IA64, the linker does run time linking by default, so we don't
+       # have to do anything special.
+       aix_use_runtimelinking=no
+       exp_sym_flag='-Bexport'
+       no_entry_flag=""
+      else
+       # If we're using GNU nm, then we don't want the "-C" option.
+       # -C means demangle to AIX nm, but means don't demangle with GNU nm
+       if $NM -V 2>&1 | grep 'GNU' > /dev/null; then
+         _LT_AC_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\[$]2 == "T") || (\[$]2 == "D") || (\[$]2 == "B")) && ([substr](\[$]3,1,1) != ".")) { print \[$]3 } }'\'' | sort -u > $export_symbols'
+       else
+         _LT_AC_TAGVAR(export_symbols_cmds, $1)='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\[$]2 == "T") || (\[$]2 == "D") || (\[$]2 == "B")) && ([substr](\[$]3,1,1) != ".")) { print \[$]3 } }'\'' | sort -u > $export_symbols'
+       fi
+       aix_use_runtimelinking=no
+
+       # Test if we are trying to use run time linking or normal
+       # AIX style linking. If -brtl is somewhere in LDFLAGS, we
+       # need to do runtime linking.
+       case $host_os in aix4.[[23]]|aix4.[[23]].*|aix5*)
+         for ld_flag in $LDFLAGS; do
+         if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
+           aix_use_runtimelinking=yes
+           break
+         fi
+         done
+       esac
+
+       exp_sym_flag='-bexport'
+       no_entry_flag='-bnoentry'
+      fi
+
+      # When large executables or shared objects are built, AIX ld can
+      # have problems creating the table of contents.  If linking a library
+      # or program results in "error TOC overflow" add -mminimal-toc to
+      # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+      # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+      _LT_AC_TAGVAR(archive_cmds, $1)=''
+      _LT_AC_TAGVAR(hardcode_direct, $1)=yes
+      _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=':'
+      _LT_AC_TAGVAR(link_all_deplibs, $1)=yes
+
+      if test "$GCC" = yes; then
+       case $host_os in aix4.[012]|aix4.[012].*)
+       # We only want to do this on AIX 4.2 and lower, the check
+       # below for broken collect2 doesn't work under 4.3+
+         collect2name=`${CC} -print-prog-name=collect2`
+         if test -f "$collect2name" && \
+          strings "$collect2name" | grep resolve_lib_name >/dev/null
+         then
+         # We have reworked collect2
+         _LT_AC_TAGVAR(hardcode_direct, $1)=yes
+         else
+         # We have old collect2
+         _LT_AC_TAGVAR(hardcode_direct, $1)=unsupported
+         # It fails to find uninstalled libraries when the uninstalled
+         # path is not listed in the libpath.  Setting hardcode_minus_L
+         # to unsupported forces relinking
+         _LT_AC_TAGVAR(hardcode_minus_L, $1)=yes
+         _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+         _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=
+         fi
+       esac
+       shared_flag='-shared'
+      else
+       # not using gcc
+       if test "$host_cpu" = ia64; then
+       # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+       # chokes on -Wl,-G. The following line is correct:
+         shared_flag='-G'
+       else
+       if test "$aix_use_runtimelinking" = yes; then
+           shared_flag='${wl}-G'
+         else
+           shared_flag='${wl}-bM:SRE'
+       fi
+       fi
+      fi
+
+      # It seems that -bexpall does not export symbols beginning with
+      # underscore (_), so it is better to generate a list of symbols to export.
+      _LT_AC_TAGVAR(always_export_symbols, $1)=yes
+      if test "$aix_use_runtimelinking" = yes; then
+       # Warning - without using the other runtime loading flags (-brtl),
+       # -berok will link without error, but may produce a broken library.
+       _LT_AC_TAGVAR(allow_undefined_flag, $1)='-berok'
+       # Determine the default libpath from the value encoded in an empty executable.
+       _LT_AC_SYS_LIBPATH_AIX
+       _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
+       _LT_AC_TAGVAR(archive_expsym_cmds, $1)="\$CC"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then echo "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols $shared_flag"
+       else
+       if test "$host_cpu" = ia64; then
+         _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $libdir:/usr/lib:/lib'
+         _LT_AC_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
+         _LT_AC_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"
+       else
+        # Determine the default libpath from the value encoded in an empty executable.
+        _LT_AC_SYS_LIBPATH_AIX
+        _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
+         # Warning - without using the other run time loading flags,
+         # -berok will link without error, but may produce a broken library.
+         _LT_AC_TAGVAR(no_undefined_flag, $1)=' ${wl}-bernotok'
+         _LT_AC_TAGVAR(allow_undefined_flag, $1)=' ${wl}-berok'
+         # -bexpall does not export symbols beginning with underscore (_)
+         _LT_AC_TAGVAR(always_export_symbols, $1)=yes
+         # Exported symbols can be pulled into shared objects from archives
+         _LT_AC_TAGVAR(whole_archive_flag_spec, $1)=' '
+         _LT_AC_TAGVAR(archive_cmds_need_lc, $1)=yes
+         # This is similar to how AIX traditionally builds it's shared libraries.
+         _LT_AC_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bE:$export_symbols ${wl}-bnoentry${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
+       fi
+      fi
+      ;;
+
+    amigaos*)
+      _LT_AC_TAGVAR(archive_cmds, $1)='$rm $output_objdir/a2ixlibrary.data~$echo "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$echo "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$echo "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$echo "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+      _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_AC_TAGVAR(hardcode_minus_L, $1)=yes
+      # see comment about different semantics on the GNU ld section
+      _LT_AC_TAGVAR(ld_shlibs, $1)=no
+      ;;
+
+    bsdi4*)
+      _LT_AC_TAGVAR(export_dynamic_flag_spec, $1)=-rdynamic
+      ;;
+
+    cygwin* | mingw* | pw32*)
+      # When not using gcc, we currently assume that we are using
+      # Microsoft Visual C++.
+      # hardcode_libdir_flag_spec is actually meaningless, as there is
+      # no search path for DLLs.
+      _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
+      _LT_AC_TAGVAR(allow_undefined_flag, $1)=unsupported
+      # Tell ltmain to make .lib files, not .a files.
+      libext=lib
+      # Tell ltmain to make .dll files, not .so files.
+      shrext=".dll"
+      # FIXME: Setting linknames here is a bad hack.
+      _LT_AC_TAGVAR(archive_cmds, $1)='$CC -o $lib $libobjs $compiler_flags `echo "$deplibs" | $SED -e '\''s/ -lc$//'\''` -link -dll~linknames='
+      # The linker will automatically build a .lib file if we build a DLL.
+      _LT_AC_TAGVAR(old_archive_From_new_cmds, $1)='true'
+      # FIXME: Should let the user specify the lib program.
+      _LT_AC_TAGVAR(old_archive_cmds, $1)='lib /OUT:$oldlib$oldobjs$old_deplibs'
+      fix_srcfile_path='`cygpath -w "$srcfile"`'
+      _LT_AC_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+      ;;
+
+    darwin* | rhapsody*)
+    if $CC -v 2>&1 | grep 'Apple' >/dev/null ; then 
+      _LT_AC_TAGVAR(archive_cmds_need_lc, $1)=no
+      case "$host_os" in
+      rhapsody* | darwin1.[[012]])
+       _LT_AC_TAGVAR(allow_undefined_flag, $1)='-undefined suppress'
+       ;;
+      *) # Darwin 1.3 on
+       test -z ${LD_TWOLEVEL_NAMESPACE} && _LT_AC_TAGVAR(allow_undefined_flag, $1)='-flat_namespace -undefined suppress'
+       ;;
+      esac
+      # FIXME: Relying on posixy $() will cause problems for
+      #        cross-compilation, but unfortunately the echo tests do not
+      #        yet detect zsh echo's removal of \ escapes.  Also zsh mangles
+      #               `"' quotes if we put them in here... so don't!
+       lt_int_apple_cc_single_mod=no
+       output_verbose_link_cmd='echo'
+       if $CC -dumpspecs 2>&1 | grep 'single_module' >/dev/null ; then
+         lt_int_apple_cc_single_mod=yes
+       fi
+       if test "X$lt_int_apple_cc_single_mod" = Xyes ; then
+         _LT_AC_TAGVAR(archive_cmds, $1)='$CC -dynamiclib -single_module $allow_undefined_flag -o $lib $libobjs $deplibs $compiler_flags -install_name $rpath/$soname $verstring'
+       else
+        _LT_AC_TAGVAR(archive_cmds, $1)='$CC -r ${wl}-bind_at_load -keep_private_externs -nostdlib -o ${lib}-master.o $libobjs~$CC -dynamiclib $allow_undefined_flag -o $lib ${lib}-master.o $deplibs $compiler_flags -install_name $rpath/$soname $verstring'
+      fi
+      _LT_AC_TAGVAR(module_cmds, $1)='$CC -bundle ${wl}-bind_at_load $allow_undefined_flag -o $lib $libobjs $deplibs$compiler_flags'
+      # Don't fix this by using the ld -exported_symbols_list flag, it doesn't exist in older darwin ld's
+        if test "X$lt_int_apple_cc_single_mod" = Xyes ; then
+          _LT_AC_TAGVAR(archive_expsym_cmds, $1)='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -dynamiclib -single_module $allow_undefined_flag -o $lib $libobjs $deplibs $compiler_flags -install_name $rpath/$soname $verstring~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
+        else
+          _LT_AC_TAGVAR(archive_expsym_cmds, $1)='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -r ${wl}-bind_at_load -keep_private_externs -nostdlib -o ${lib}-master.o $libobjs~$CC -dynamiclib $allow_undefined_flag -o $lib ${lib}-master.o $deplibs $compiler_flags -install_name $rpath/$soname $verstring~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
+        fi
+          _LT_AC_TAGVAR(module_expsym_cmds, $1)='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -bundle $allow_undefined_flag  -o $lib $libobjs $deplibs$compiler_flags~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
+      _LT_AC_TAGVAR(hardcode_direct, $1)=no
+      _LT_AC_TAGVAR(hardcode_automatic, $1)=yes
+      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
+      _LT_AC_TAGVAR(whole_archive_flag_spec, $1)='-all_load $convenience'
+      _LT_AC_TAGVAR(link_all_deplibs, $1)=yes
+    fi  
+      ;;
+
+    dgux*)
+      _LT_AC_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    freebsd1*)
+      _LT_AC_TAGVAR(ld_shlibs, $1)=no
+      ;;
+
+    # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
+    # support.  Future versions do this automatically, but an explicit c++rt0.o
+    # does not break anything, and helps significantly (at the cost of a little
+    # extra space).
+    freebsd2.2*)
+      _LT_AC_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
+      _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+      _LT_AC_TAGVAR(hardcode_direct, $1)=yes
+      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    # Unfortunately, older versions of FreeBSD 2 do not have this feature.
+    freebsd2*)
+      _LT_AC_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      _LT_AC_TAGVAR(hardcode_direct, $1)=yes
+      _LT_AC_TAGVAR(hardcode_minus_L, $1)=yes
+      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
+    freebsd*)
+      _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
+      _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+      _LT_AC_TAGVAR(hardcode_direct, $1)=yes
+      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    hpux9*)
+      if test "$GCC" = yes; then
+       _LT_AC_TAGVAR(archive_cmds, $1)='$rm $output_objdir/$soname~$CC -shared -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+      else
+       _LT_AC_TAGVAR(archive_cmds, $1)='$rm $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+      fi
+      _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
+      _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=:
+      _LT_AC_TAGVAR(hardcode_direct, $1)=yes
+
+      # hardcode_minus_L: Not really in the search PATH,
+      # but as the default location of the library.
+      _LT_AC_TAGVAR(hardcode_minus_L, $1)=yes
+      _LT_AC_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+      ;;
+
+    hpux10* | hpux11*)
+      if test "$GCC" = yes -a "$with_gnu_ld" = no; then
+       case "$host_cpu" in
+       hppa*64*|ia64*)
+         _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+         ;;
+       *)
+         _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+         ;;
+       esac
+      else
+       case "$host_cpu" in
+       hppa*64*|ia64*)
+         _LT_AC_TAGVAR(archive_cmds, $1)='$LD -b +h $soname -o $lib $libobjs $deplibs $linker_flags'
+         ;;
+       *)
+         _LT_AC_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
+         ;;
+       esac
+      fi
+      if test "$with_gnu_ld" = no; then
+       case "$host_cpu" in
+       hppa*64*)
+         _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
+         _LT_AC_TAGVAR(hardcode_libdir_flag_spec_ld, $1)='+b $libdir'
+         _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=:
+         _LT_AC_TAGVAR(hardcode_direct, $1)=no
+         _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+         ;;
+       ia64*)
+         _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+         _LT_AC_TAGVAR(hardcode_direct, $1)=no
+         _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+
+         # hardcode_minus_L: Not really in the search PATH,
+         # but as the default location of the library.
+         _LT_AC_TAGVAR(hardcode_minus_L, $1)=yes
+         ;;
+       *)
+         _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
+         _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=:
+         _LT_AC_TAGVAR(hardcode_direct, $1)=yes
+         _LT_AC_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+
+         # hardcode_minus_L: Not really in the search PATH,
+         # but as the default location of the library.
+         _LT_AC_TAGVAR(hardcode_minus_L, $1)=yes
+         ;;
+       esac
+      fi
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      if test "$GCC" = yes; then
+       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+      else
+       _LT_AC_TAGVAR(archive_cmds, $1)='$LD -shared $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${output_objdir}/so_locations -o $lib'
+       _LT_AC_TAGVAR(hardcode_libdir_flag_spec_ld, $1)='-rpath $libdir'
+      fi
+      _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+      _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=:
+      _LT_AC_TAGVAR(link_all_deplibs, $1)=yes
+      ;;
+
+    netbsd*)
+      if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
+       _LT_AC_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
+      else
+       _LT_AC_TAGVAR(archive_cmds, $1)='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
+      fi
+      _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+      _LT_AC_TAGVAR(hardcode_direct, $1)=yes
+      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    newsos6)
+      _LT_AC_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      _LT_AC_TAGVAR(hardcode_direct, $1)=yes
+      _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+      _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=:
+      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    openbsd*)
+      _LT_AC_TAGVAR(hardcode_direct, $1)=yes
+      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+      if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+       _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
+       _LT_AC_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+      else
+       case $host_os in
+        openbsd[[01]].* | openbsd2.[[0-7]] | openbsd2.[[0-7]].*)
+          _LT_AC_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+          _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+          ;;
+        *)
+          _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+          _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
+          ;;
+       esac
+      fi
+      ;;
+
+    os2*)
+      _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_AC_TAGVAR(hardcode_minus_L, $1)=yes
+      _LT_AC_TAGVAR(allow_undefined_flag, $1)=unsupported
+      _LT_AC_TAGVAR(archive_cmds, $1)='$echo "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$echo "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~$echo DATA >> $output_objdir/$libname.def~$echo " SINGLE NONSHARED" >> $output_objdir/$libname.def~$echo EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def'
+      _LT_AC_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
+      ;;
+
+    osf3*)
+      if test "$GCC" = yes; then
+       _LT_AC_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
+       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+      else
+       _LT_AC_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
+       _LT_AC_TAGVAR(archive_cmds, $1)='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${output_objdir}/so_locations -o $lib'
+      fi
+      _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+      _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=:
+      ;;
+
+    osf4* | osf5*)     # as osf3* with the addition of -msym flag
+      if test "$GCC" = yes; then
+       _LT_AC_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
+       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+       _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+      else
+       _LT_AC_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
+       _LT_AC_TAGVAR(archive_cmds, $1)='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -msym -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${output_objdir}/so_locations -o $lib'
+       _LT_AC_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; echo "-hidden">> $lib.exp~
+       $LD -shared${allow_undefined_flag} -input $lib.exp $linker_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib~$rm $lib.exp'
+
+       # Both c and cxx compiler support -rpath directly
+       _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
+      fi
+      _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=:
+      ;;
+
+    sco3.2v5*)
+      _LT_AC_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+      _LT_AC_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Bexport'
+      runpath_var=LD_RUN_PATH
+      hardcode_runpath_var=yes
+      ;;
+
+    solaris*)
+      _LT_AC_TAGVAR(no_undefined_flag, $1)=' -z text'
+      if test "$GCC" = yes; then
+       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+       _LT_AC_TAGVAR(archive_expsym_cmds, $1)='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+         $CC -shared ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$rm $lib.exp'
+      else
+       _LT_AC_TAGVAR(archive_cmds, $1)='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
+       _LT_AC_TAGVAR(archive_expsym_cmds, $1)='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+       $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
+      fi
+      _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+      case $host_os in
+      solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
+      *) # Supported since Solaris 2.6 (maybe 2.5.1?)
+       _LT_AC_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract' ;;
+      esac
+      _LT_AC_TAGVAR(link_all_deplibs, $1)=yes
+      ;;
+
+    sunos4*)
+      if test "x$host_vendor" = xsequent; then
+       # Use $CC to link under sequent, because it throws in some extra .o
+       # files that make .init and .fini sections work.
+       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+       _LT_AC_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_AC_TAGVAR(hardcode_direct, $1)=yes
+      _LT_AC_TAGVAR(hardcode_minus_L, $1)=yes
+      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    sysv4)
+      case $host_vendor in
+       sni)
+         _LT_AC_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+         _LT_AC_TAGVAR(hardcode_direct, $1)=yes # is this really true???
+       ;;
+       siemens)
+         ## LD is ld it makes a PLAMLIB
+         ## CC just makes a GrossModule.
+         _LT_AC_TAGVAR(archive_cmds, $1)='$LD -G -o $lib $libobjs $deplibs $linker_flags'
+         _LT_AC_TAGVAR(reload_cmds, $1)='$CC -r -o $output$reload_objs'
+         _LT_AC_TAGVAR(hardcode_direct, $1)=no
+        ;;
+       motorola)
+         _LT_AC_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+         _LT_AC_TAGVAR(hardcode_direct, $1)=no #Motorola manual says yes, but my tests say they lie
+       ;;
+      esac
+      runpath_var='LD_RUN_PATH'
+      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    sysv4.3*)
+      _LT_AC_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+      _LT_AC_TAGVAR(export_dynamic_flag_spec, $1)='-Bexport'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+       _LT_AC_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+       _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+       runpath_var=LD_RUN_PATH
+       hardcode_runpath_var=yes
+       _LT_AC_TAGVAR(ld_shlibs, $1)=yes
+      fi
+      ;;
+
+    sysv4.2uw2*)
+      _LT_AC_TAGVAR(archive_cmds, $1)='$LD -G -o $lib $libobjs $deplibs $linker_flags'
+      _LT_AC_TAGVAR(hardcode_direct, $1)=yes
+      _LT_AC_TAGVAR(hardcode_minus_L, $1)=no
+      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+      hardcode_runpath_var=yes
+      runpath_var=LD_RUN_PATH
+      ;;
+
+   sysv5OpenUNIX8* | sysv5UnixWare7* |  sysv5uw[[78]]* | unixware7*)
+      _LT_AC_TAGVAR(no_undefined_flag, $1)='${wl}-z ${wl}text'
+      if test "$GCC" = yes; then
+       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      runpath_var='LD_RUN_PATH'
+      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    sysv5*)
+      _LT_AC_TAGVAR(no_undefined_flag, $1)=' -z text'
+      # $CC -shared without GNU ld will not create a library from C++
+      # object files and a static libstdc++, better avoid it by now
+      _LT_AC_TAGVAR(archive_cmds, $1)='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      _LT_AC_TAGVAR(archive_expsym_cmds, $1)='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+               $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
+      _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)=
+      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+      runpath_var='LD_RUN_PATH'
+      ;;
+
+    uts4*)
+      _LT_AC_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    *)
+      _LT_AC_TAGVAR(ld_shlibs, $1)=no
+      ;;
+    esac
+  fi
+])
+AC_MSG_RESULT([$_LT_AC_TAGVAR(ld_shlibs, $1)])
+test "$_LT_AC_TAGVAR(ld_shlibs, $1)" = no && can_build_shared=no
+
+variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
+if test "$GCC" = yes; then
+  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+fi
+
+#
+# Do we need to explicitly link libc?
+#
+case "x$_LT_AC_TAGVAR(archive_cmds_need_lc, $1)" in
+x|xyes)
+  # Assume -lc should be added
+  _LT_AC_TAGVAR(archive_cmds_need_lc, $1)=yes
+
+  if test "$enable_shared" = yes && test "$GCC" = yes; then
+    case $_LT_AC_TAGVAR(archive_cmds, $1) in
+    *'~'*)
+      # FIXME: we may have to deal with multi-command sequences.
+      ;;
+    '$CC '*)
+      # Test whether the compiler implicitly links with -lc since on some
+      # systems, -lgcc has to come before -lc. If gcc already passes -lc
+      # to ld, don't add -lc before -lgcc.
+      AC_MSG_CHECKING([whether -lc should be explicitly linked in])
+      $rm conftest*
+      printf "$lt_simple_compile_test_code" > conftest.$ac_ext
+  
+      if AC_TRY_EVAL(ac_compile) 2>conftest.err; then
+        soname=conftest
+        lib=conftest
+        libobjs=conftest.$ac_objext
+        deplibs=
+        wl=$_LT_AC_TAGVAR(lt_prog_compiler_wl, $1)
+        compiler_flags=-v
+        linker_flags=-v
+        verstring=
+        output_objdir=.
+        libname=conftest
+        lt_save_allow_undefined_flag=$_LT_AC_TAGVAR(allow_undefined_flag, $1)
+        _LT_AC_TAGVAR(allow_undefined_flag, $1)=
+        if AC_TRY_EVAL(_LT_AC_TAGVAR(archive_cmds, $1) 2\>\&1 \| grep \" -lc \" \>/dev/null 2\>\&1)
+        then
+         _LT_AC_TAGVAR(archive_cmds_need_lc, $1)=no
+        else
+         _LT_AC_TAGVAR(archive_cmds_need_lc, $1)=yes
+        fi
+        _LT_AC_TAGVAR(allow_undefined_flag, $1)=$lt_save_allow_undefined_flag
+      else
+        cat conftest.err 1>&5
+      fi
+      $rm conftest*
+      AC_MSG_RESULT([$_LT_AC_TAGVAR(archive_cmds_need_lc, $1)])
+      ;;
+    esac
+  fi
+  ;;
+esac
+])# AC_LIBTOOL_PROG_LD_SHLIBS
+
+
+# _LT_AC_FILE_LTDLL_C
+# -------------------
+# Be careful that the start marker always follows a newline.
+AC_DEFUN([_LT_AC_FILE_LTDLL_C], [
+# /* ltdll.c starts here */
+# #define WIN32_LEAN_AND_MEAN
+# #include <windows.h>
+# #undef WIN32_LEAN_AND_MEAN
+# #include <stdio.h>
+#
+# #ifndef __CYGWIN__
+# #  ifdef __CYGWIN32__
+# #    define __CYGWIN__ __CYGWIN32__
+# #  endif
+# #endif
+#
+# #ifdef __cplusplus
+# extern "C" {
+# #endif
+# BOOL APIENTRY DllMain (HINSTANCE hInst, DWORD reason, LPVOID reserved);
+# #ifdef __cplusplus
+# }
+# #endif
+#
+# #ifdef __CYGWIN__
+# #include <cygwin/cygwin_dll.h>
+# DECLARE_CYGWIN_DLL( DllMain );
+# #endif
+# HINSTANCE __hDllInstance_base;
+#
+# BOOL APIENTRY
+# DllMain (HINSTANCE hInst, DWORD reason, LPVOID reserved)
+# {
+#   __hDllInstance_base = hInst;
+#   return TRUE;
+# }
+# /* ltdll.c ends here */
+])# _LT_AC_FILE_LTDLL_C
+
+
+# _LT_AC_TAGVAR(VARNAME, [TAGNAME])
+# ---------------------------------
+AC_DEFUN([_LT_AC_TAGVAR], [ifelse([$2], [], [$1], [$1_$2])])
+
+
+# old names
+AC_DEFUN([AM_PROG_LIBTOOL],   [AC_PROG_LIBTOOL])
+AC_DEFUN([AM_ENABLE_SHARED],  [AC_ENABLE_SHARED($@)])
+AC_DEFUN([AM_ENABLE_STATIC],  [AC_ENABLE_STATIC($@)])
+AC_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)])
+AC_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)])
+AC_DEFUN([AM_PROG_LD],        [AC_PROG_LD])
+AC_DEFUN([AM_PROG_NM],        [AC_PROG_NM])
+
+# This is just to silence aclocal about the macro not being used
+ifelse([AC_DISABLE_FAST_INSTALL])
+
+AC_DEFUN([LT_AC_PROG_GCJ],
+[AC_CHECK_TOOL(GCJ, gcj, no)
+  test "x${GCJFLAGS+set}" = xset || GCJFLAGS="-g -O2"
+  AC_SUBST(GCJFLAGS)
+])
+
+AC_DEFUN([LT_AC_PROG_RC],
+[AC_CHECK_TOOL(RC, windres, no)
+])
+
+# NOTE: This macro has been submitted for inclusion into   #
+#  GNU Autoconf as AC_PROG_SED.  When it is available in   #
+#  a released version of Autoconf we should remove this    #
+#  macro and use it instead.                               #
+# LT_AC_PROG_SED
+# --------------
+# Check for a fully-functional sed program, that truncates
+# as few characters as possible.  Prefer GNU sed if found.
+AC_DEFUN([LT_AC_PROG_SED],
+[AC_MSG_CHECKING([for a sed that does not truncate output])
+AC_CACHE_VAL(lt_cv_path_SED,
+[# Loop through the user's path and test for sed and gsed.
+# Then use that list of sed's as ones to test for truncation.
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for lt_ac_prog in sed gsed; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      if $as_executable_p "$as_dir/$lt_ac_prog$ac_exec_ext"; then
+        lt_ac_sed_list="$lt_ac_sed_list $as_dir/$lt_ac_prog$ac_exec_ext"
+      fi
+    done
+  done
+done
+lt_ac_max=0
+lt_ac_count=0
+# Add /usr/xpg4/bin/sed as it is typically found on Solaris
+# along with /bin/sed that truncates output.
+for lt_ac_sed in $lt_ac_sed_list /usr/xpg4/bin/sed; do
+  test ! -f $lt_ac_sed && break
+  cat /dev/null > conftest.in
+  lt_ac_count=0
+  echo $ECHO_N "0123456789$ECHO_C" >conftest.in
+  # Check for GNU sed and select it if it is found.
+  if "$lt_ac_sed" --version 2>&1 < /dev/null | grep 'GNU' > /dev/null; then
+    lt_cv_path_SED=$lt_ac_sed
+    break
+  fi
+  while true; do
+    cat conftest.in conftest.in >conftest.tmp
+    mv conftest.tmp conftest.in
+    cp conftest.in conftest.nl
+    echo >>conftest.nl
+    $lt_ac_sed -e 's/a$//' < conftest.nl >conftest.out || break
+    cmp -s conftest.out conftest.nl || break
+    # 10000 chars as input seems more than enough
+    test $lt_ac_count -gt 10 && break
+    lt_ac_count=`expr $lt_ac_count + 1`
+    if test $lt_ac_count -gt $lt_ac_max; then
+      lt_ac_max=$lt_ac_count
+      lt_cv_path_SED=$lt_ac_sed
+    fi
+  done
+done
+SED=$lt_cv_path_SED
+])
+AC_MSG_RESULT([$SED])
+])
+
+#serial 7
+
+dnl Some libelf versions have bugs in Elf64_Sxword conversions.
+dnl Detect it.
+
+dnl Written by Jakub Jelinek <jakub@redhat.com>.
+
+AC_DEFUN(AC_LIBELF_SXWORD,
+  [AC_TRY_RUN([
+#include <errno.h>
+#include <fcntl.h>
+#include <elf.h>
+#include <libelf.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+static unsigned char sparc64_elf[] = {
+0x7f,0x45,0x4c,0x46,0x02,0x02,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x01,0x00,0x2b,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x78,
+0x00,0x00,0x00,0x02,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x40,0x00,0x08,0x00,0x05,
+0x00,0x00,0x07,0xff,0xf0,0x00,0x00,0x00,0x00,0x2e,0x73,0x79,0x6d,0x74,0x61,0x62,
+0x00,0x2e,0x73,0x74,0x72,0x74,0x61,0x62,0x00,0x2e,0x73,0x68,0x73,0x74,0x72,0x74,
+0x61,0x62,0x00,0x2e,0x74,0x65,0x78,0x74,0x00,0x2e,0x64,0x61,0x74,0x61,0x00,0x2e,
+0x62,0x73,0x73,0x00,0x66,0x6f,0x6f,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1b,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x21,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x27,0x00,0x00,0x00,0x08,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x2c,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x11,0x00,0x00,0x00,0x03,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x48,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x02,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x78,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x78,
+0x00,0x00,0x00,0x07,0x00,0x00,0x00,0x05,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x00,0x00,0x00,0x09,0x00,0x00,0x00,0x03,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x02,0xf0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x02,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x04,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00 };
+
+int main (void)
+{
+  Elf *elf;
+  int fd;
+  Elf64_Ehdr *ehdr;
+  Elf64_Addr val;
+  Elf_Scn *scn;
+
+  fd = open ("conflibelftest", O_RDWR | O_CREAT | O_EXCL, 0600);
+  if (fd == -1) exit (1);
+  unlink ("conflibelftest");
+  if (write (fd, sparc64_elf, sizeof(sparc64_elf)) != sizeof(sparc64_elf))
+    exit (1);
+  if (lseek (fd, 0, SEEK_SET) != 0) exit (1);
+  elf_version (EV_CURRENT);
+  elf = elf_begin (fd, ELF_C_RDWR, NULL); if (elf == NULL) exit (2);
+  if ((ehdr = elf64_getehdr (elf)) == NULL) exit (3);
+  scn = NULL;
+  while ((scn = elf_nextscn (elf, scn)) != NULL)
+    {
+      char *name = NULL;
+      Elf64_Shdr *shdr;
+      Elf_Data *src, *dst;
+
+      if ((shdr = elf64_getshdr (scn))
+         && (name = elf_strptr (elf, ehdr->e_shstrndx, shdr->sh_name))
+         && !strcmp (name, "foo"))
+       {
+         src = elf_rawdata (scn, NULL);
+         if (shdr->sh_size != 8 || src->d_off || src->d_size != 8) exit (4);
+         if (src == NULL || elf_rawdata (scn, src) != NULL) exit (5);
+         if ((dst = elf_newdata (scn)) == NULL) exit (6);
+         dst->d_buf = &val;
+         dst->d_size = 8;
+         dst->d_off = 0;
+         dst->d_type = ELF_T_SXWORD;
+         src->d_type = ELF_T_SXWORD;
+         if (elf64_xlatetom (dst, src, ELFDATA2MSB) == NULL) exit (7);
+         if (val != 0x7fff0000000)
+           exit (42);
+         elf_end (elf);
+         exit (0);
+       }
+    }
+  exit (8);
+}
+    ],,[AC_MSG_ERROR([libelf does not properly convert Elf64_Sxword quantities.
+If you are using libelf-0.7.0, please use patches/libelf-0.7.0.patch.])],
+[AC_MSG_WARN([Could not test whether libelf properly converts Elf64_Sxword quantities.
+If you are using libelf-0.7.0 and your libelf is buggy, please use
+patches/libelf-0.7.0.patch.])])
+  ])
+
diff --git a/config.guess b/config.guess
new file mode 100755 (executable)
index 0000000..f1657bb
--- /dev/null
@@ -0,0 +1,1363 @@
+#! /bin/sh
+# Attempt to guess a canonical system name.
+#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+#   2000, 2001, 2002 Free Software Foundation, Inc.
+
+timestamp='2002-09-03'
+
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# Originally written by Per Bothner <per@bothner.com>.
+# Please send patches to <config-patches@gnu.org>.  Submit a context
+# diff and a properly formatted ChangeLog entry.
+#
+# This script attempts to guess a canonical system name similar to
+# config.sub.  If it succeeds, it prints the system name on stdout, and
+# exits with 0.  Otherwise, it exits with 1.
+#
+# The plan is that this can be called by configure scripts if you
+# don't specify an explicit build system type.
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION]
+
+Output the configuration name of the system \`$me' is run on.
+
+Operation modes:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.guess ($timestamp)
+
+Originally written by Per Bothner.
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
+Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit 0 ;;
+    --version | -v )
+       echo "$version" ; exit 0 ;;
+    --help | --h* | -h )
+       echo "$usage"; exit 0 ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )        # Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help" >&2
+       exit 1 ;;
+    * )
+       break ;;
+  esac
+done
+
+if test $# != 0; then
+  echo "$me: too many arguments$help" >&2
+  exit 1
+fi
+
+trap 'exit 1' 1 2 15
+
+# CC_FOR_BUILD -- compiler used by this script. Note that the use of a
+# compiler to aid in system detection is discouraged as it requires
+# temporary files to be created and, as you can see below, it is a
+# headache to deal with in a portable fashion.
+
+# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
+# use `HOST_CC' if defined, but it is deprecated.
+
+# This shell variable is my proudest work .. or something. --bje
+
+set_cc_for_build='tmpdir=${TMPDIR-/tmp}/config-guess-$$ ;
+(old=`umask` && umask 077 && mkdir $tmpdir && umask $old && unset old)
+   || (echo "$me: cannot create $tmpdir" >&2 && exit 1) ;
+dummy=$tmpdir/dummy ;
+files="$dummy.c $dummy.o $dummy.rel $dummy" ;
+trap '"'"'rm -f $files; rmdir $tmpdir; exit 1'"'"' 1 2 15 ;
+case $CC_FOR_BUILD,$HOST_CC,$CC in
+ ,,)    echo "int x;" > $dummy.c ;
+       for c in cc gcc c89 c99 ; do
+         if ($c $dummy.c -c -o $dummy.o) >/dev/null 2>&1 ; then
+            CC_FOR_BUILD="$c"; break ;
+         fi ;
+       done ;
+       rm -f $files ;
+       if test x"$CC_FOR_BUILD" = x ; then
+         CC_FOR_BUILD=no_compiler_found ;
+       fi
+       ;;
+ ,,*)   CC_FOR_BUILD=$CC ;;
+ ,*,*)  CC_FOR_BUILD=$HOST_CC ;;
+esac ;
+unset files'
+
+# This is needed to find uname on a Pyramid OSx when run in the BSD universe.
+# (ghazi@noc.rutgers.edu 1994-08-24)
+if (test -f /.attbin/uname) >/dev/null 2>&1 ; then
+       PATH=$PATH:/.attbin ; export PATH
+fi
+
+UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
+UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
+UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown
+UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
+
+# Note: order is significant - the case branches are not exclusive.
+
+case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
+    *:NetBSD:*:*)
+       # NetBSD (nbsd) targets should (where applicable) match one or
+       # more of the tupples: *-*-netbsdelf*, *-*-netbsdaout*,
+       # *-*-netbsdecoff* and *-*-netbsd*.  For targets that recently
+       # switched to ELF, *-*-netbsd* would select the old
+       # object file format.  This provides both forward
+       # compatibility and a consistent mechanism for selecting the
+       # object file format.
+       #
+       # Note: NetBSD doesn't particularly care about the vendor
+       # portion of the name.  We always set it to "unknown".
+       sysctl="sysctl -n hw.machine_arch"
+       UNAME_MACHINE_ARCH=`(/sbin/$sysctl 2>/dev/null || \
+           /usr/sbin/$sysctl 2>/dev/null || echo unknown)`
+       case "${UNAME_MACHINE_ARCH}" in
+           armeb) machine=armeb-unknown ;;
+           arm*) machine=arm-unknown ;;
+           sh3el) machine=shl-unknown ;;
+           sh3eb) machine=sh-unknown ;;
+           *) machine=${UNAME_MACHINE_ARCH}-unknown ;;
+       esac
+       # The Operating System including object format, if it has switched
+       # to ELF recently, or will in the future.
+       case "${UNAME_MACHINE_ARCH}" in
+           arm*|i386|m68k|ns32k|sh3*|sparc|vax)
+               eval $set_cc_for_build
+               if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
+                       | grep __ELF__ >/dev/null
+               then
+                   # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
+                   # Return netbsd for either.  FIX?
+                   os=netbsd
+               else
+                   os=netbsdelf
+               fi
+               ;;
+           *)
+               os=netbsd
+               ;;
+       esac
+       # The OS release
+       release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
+       # Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
+       # contains redundant information, the shorter form:
+       # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
+       echo "${machine}-${os}${release}"
+       exit 0 ;;
+    amiga:OpenBSD:*:*)
+       echo m68k-unknown-openbsd${UNAME_RELEASE}
+       exit 0 ;;
+    arc:OpenBSD:*:*)
+       echo mipsel-unknown-openbsd${UNAME_RELEASE}
+       exit 0 ;;
+    hp300:OpenBSD:*:*)
+       echo m68k-unknown-openbsd${UNAME_RELEASE}
+       exit 0 ;;
+    mac68k:OpenBSD:*:*)
+       echo m68k-unknown-openbsd${UNAME_RELEASE}
+       exit 0 ;;
+    macppc:OpenBSD:*:*)
+       echo powerpc-unknown-openbsd${UNAME_RELEASE}
+       exit 0 ;;
+    mvme68k:OpenBSD:*:*)
+       echo m68k-unknown-openbsd${UNAME_RELEASE}
+       exit 0 ;;
+    mvme88k:OpenBSD:*:*)
+       echo m88k-unknown-openbsd${UNAME_RELEASE}
+       exit 0 ;;
+    mvmeppc:OpenBSD:*:*)
+       echo powerpc-unknown-openbsd${UNAME_RELEASE}
+       exit 0 ;;
+    pmax:OpenBSD:*:*)
+       echo mipsel-unknown-openbsd${UNAME_RELEASE}
+       exit 0 ;;
+    sgi:OpenBSD:*:*)
+       echo mipseb-unknown-openbsd${UNAME_RELEASE}
+       exit 0 ;;
+    sun3:OpenBSD:*:*)
+       echo m68k-unknown-openbsd${UNAME_RELEASE}
+       exit 0 ;;
+    wgrisc:OpenBSD:*:*)
+       echo mipsel-unknown-openbsd${UNAME_RELEASE}
+       exit 0 ;;
+    *:OpenBSD:*:*)
+       echo ${UNAME_MACHINE}-unknown-openbsd${UNAME_RELEASE}
+       exit 0 ;;
+    alpha:OSF1:*:*)
+       if test $UNAME_RELEASE = "V4.0"; then
+               UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
+       fi
+       # A Vn.n version is a released version.
+       # A Tn.n version is a released field test version.
+       # A Xn.n version is an unreleased experimental baselevel.
+       # 1.2 uses "1.2" for uname -r.
+       eval $set_cc_for_build
+       cat <<EOF >$dummy.s
+       .data
+\$Lformat:
+       .byte 37,100,45,37,120,10,0     # "%d-%x\n"
+
+       .text
+       .globl main
+       .align 4
+       .ent main
+main:
+       .frame \$30,16,\$26,0
+       ldgp \$29,0(\$27)
+       .prologue 1
+       .long 0x47e03d80 # implver \$0
+       lda \$2,-1
+       .long 0x47e20c21 # amask \$2,\$1
+       lda \$16,\$Lformat
+       mov \$0,\$17
+       not \$1,\$18
+       jsr \$26,printf
+       ldgp \$29,0(\$26)
+       mov 0,\$16
+       jsr \$26,exit
+       .end main
+EOF
+       $CC_FOR_BUILD $dummy.s -o $dummy 2>/dev/null
+       if test "$?" = 0 ; then
+               case `$dummy` in
+                       0-0)
+                               UNAME_MACHINE="alpha"
+                               ;;
+                       1-0)
+                               UNAME_MACHINE="alphaev5"
+                               ;;
+                       1-1)
+                               UNAME_MACHINE="alphaev56"
+                               ;;
+                       1-101)
+                               UNAME_MACHINE="alphapca56"
+                               ;;
+                       2-303)
+                               UNAME_MACHINE="alphaev6"
+                               ;;
+                       2-307)
+                               UNAME_MACHINE="alphaev67"
+                               ;;
+                       2-1307)
+                               UNAME_MACHINE="alphaev68"
+                               ;;
+                       3-1307)
+                               UNAME_MACHINE="alphaev7"
+                               ;;
+               esac
+       fi
+       rm -f $dummy.s $dummy && rmdir $tmpdir
+       echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[VTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
+       exit 0 ;;
+    Alpha\ *:Windows_NT*:*)
+       # How do we know it's Interix rather than the generic POSIX subsystem?
+       # Should we change UNAME_MACHINE based on the output of uname instead
+       # of the specific Alpha model?
+       echo alpha-pc-interix
+       exit 0 ;;
+    21064:Windows_NT:50:3)
+       echo alpha-dec-winnt3.5
+       exit 0 ;;
+    Amiga*:UNIX_System_V:4.0:*)
+       echo m68k-unknown-sysv4
+       exit 0;;
+    *:[Aa]miga[Oo][Ss]:*:*)
+       echo ${UNAME_MACHINE}-unknown-amigaos
+       exit 0 ;;
+    *:[Mm]orph[Oo][Ss]:*:*)
+       echo ${UNAME_MACHINE}-unknown-morphos
+       exit 0 ;;
+    *:OS/390:*:*)
+       echo i370-ibm-openedition
+       exit 0 ;;
+    arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
+       echo arm-acorn-riscix${UNAME_RELEASE}
+       exit 0;;
+    SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
+       echo hppa1.1-hitachi-hiuxmpp
+       exit 0;;
+    Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*)
+       # akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
+       if test "`(/bin/universe) 2>/dev/null`" = att ; then
+               echo pyramid-pyramid-sysv3
+       else
+               echo pyramid-pyramid-bsd
+       fi
+       exit 0 ;;
+    NILE*:*:*:dcosx)
+       echo pyramid-pyramid-svr4
+       exit 0 ;;
+    DRS?6000:UNIX_SV:4.2*:7*)
+       case `/usr/bin/uname -p` in
+           sparc) echo sparc-icl-nx7 && exit 0 ;;
+       esac ;;
+    sun4H:SunOS:5.*:*)
+       echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+       exit 0 ;;
+    sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
+       echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+       exit 0 ;;
+    i86pc:SunOS:5.*:*)
+       echo i386-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+       exit 0 ;;
+    sun4*:SunOS:6*:*)
+       # According to config.sub, this is the proper way to canonicalize
+       # SunOS6.  Hard to guess exactly what SunOS6 will be like, but
+       # it's likely to be more like Solaris than SunOS4.
+       echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+       exit 0 ;;
+    sun4*:SunOS:*:*)
+       case "`/usr/bin/arch -k`" in
+           Series*|S4*)
+               UNAME_RELEASE=`uname -v`
+               ;;
+       esac
+       # Japanese Language versions have a version number like `4.1.3-JL'.
+       echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'`
+       exit 0 ;;
+    sun3*:SunOS:*:*)
+       echo m68k-sun-sunos${UNAME_RELEASE}
+       exit 0 ;;
+    sun*:*:4.2BSD:*)
+       UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
+       test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3
+       case "`/bin/arch`" in
+           sun3)
+               echo m68k-sun-sunos${UNAME_RELEASE}
+               ;;
+           sun4)
+               echo sparc-sun-sunos${UNAME_RELEASE}
+               ;;
+       esac
+       exit 0 ;;
+    aushp:SunOS:*:*)
+       echo sparc-auspex-sunos${UNAME_RELEASE}
+       exit 0 ;;
+    # The situation for MiNT is a little confusing.  The machine name
+    # can be virtually everything (everything which is not
+    # "atarist" or "atariste" at least should have a processor
+    # > m68000).  The system name ranges from "MiNT" over "FreeMiNT"
+    # to the lowercase version "mint" (or "freemint").  Finally
+    # the system name "TOS" denotes a system which is actually not
+    # MiNT.  But MiNT is downward compatible to TOS, so this should
+    # be no problem.
+    atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
+        echo m68k-atari-mint${UNAME_RELEASE}
+       exit 0 ;;
+    atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
+       echo m68k-atari-mint${UNAME_RELEASE}
+        exit 0 ;;
+    *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
+        echo m68k-atari-mint${UNAME_RELEASE}
+       exit 0 ;;
+    milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
+        echo m68k-milan-mint${UNAME_RELEASE}
+        exit 0 ;;
+    hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
+        echo m68k-hades-mint${UNAME_RELEASE}
+        exit 0 ;;
+    *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
+        echo m68k-unknown-mint${UNAME_RELEASE}
+        exit 0 ;;
+    powerpc:machten:*:*)
+       echo powerpc-apple-machten${UNAME_RELEASE}
+       exit 0 ;;
+    RISC*:Mach:*:*)
+       echo mips-dec-mach_bsd4.3
+       exit 0 ;;
+    RISC*:ULTRIX:*:*)
+       echo mips-dec-ultrix${UNAME_RELEASE}
+       exit 0 ;;
+    VAX*:ULTRIX*:*:*)
+       echo vax-dec-ultrix${UNAME_RELEASE}
+       exit 0 ;;
+    2020:CLIX:*:* | 2430:CLIX:*:*)
+       echo clipper-intergraph-clix${UNAME_RELEASE}
+       exit 0 ;;
+    mips:*:*:UMIPS | mips:*:*:RISCos)
+       eval $set_cc_for_build
+       sed 's/^        //' << EOF >$dummy.c
+#ifdef __cplusplus
+#include <stdio.h>  /* for printf() prototype */
+       int main (int argc, char *argv[]) {
+#else
+       int main (argc, argv) int argc; char *argv[]; {
+#endif
+       #if defined (host_mips) && defined (MIPSEB)
+       #if defined (SYSTYPE_SYSV)
+         printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0);
+       #endif
+       #if defined (SYSTYPE_SVR4)
+         printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0);
+       #endif
+       #if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD)
+         printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0);
+       #endif
+       #endif
+         exit (-1);
+       }
+EOF
+       $CC_FOR_BUILD $dummy.c -o $dummy \
+         && $dummy `echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` \
+         && rm -f $dummy.c $dummy && rmdir $tmpdir && exit 0
+       rm -f $dummy.c $dummy && rmdir $tmpdir
+       echo mips-mips-riscos${UNAME_RELEASE}
+       exit 0 ;;
+    Motorola:PowerMAX_OS:*:*)
+       echo powerpc-motorola-powermax
+       exit 0 ;;
+    Motorola:*:4.3:PL8-*)
+       echo powerpc-harris-powermax
+       exit 0 ;;
+    Night_Hawk:*:*:PowerMAX_OS)
+       echo powerpc-harris-powermax
+       exit 0 ;;
+    Night_Hawk:Power_UNIX:*:*)
+       echo powerpc-harris-powerunix
+       exit 0 ;;
+    m88k:CX/UX:7*:*)
+       echo m88k-harris-cxux7
+       exit 0 ;;
+    m88k:*:4*:R4*)
+       echo m88k-motorola-sysv4
+       exit 0 ;;
+    m88k:*:3*:R3*)
+       echo m88k-motorola-sysv3
+       exit 0 ;;
+    AViiON:dgux:*:*)
+        # DG/UX returns AViiON for all architectures
+        UNAME_PROCESSOR=`/usr/bin/uname -p`
+       if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ]
+       then
+           if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \
+              [ ${TARGET_BINARY_INTERFACE}x = x ]
+           then
+               echo m88k-dg-dgux${UNAME_RELEASE}
+           else
+               echo m88k-dg-dguxbcs${UNAME_RELEASE}
+           fi
+       else
+           echo i586-dg-dgux${UNAME_RELEASE}
+       fi
+       exit 0 ;;
+    M88*:DolphinOS:*:*)        # DolphinOS (SVR3)
+       echo m88k-dolphin-sysv3
+       exit 0 ;;
+    M88*:*:R3*:*)
+       # Delta 88k system running SVR3
+       echo m88k-motorola-sysv3
+       exit 0 ;;
+    XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3)
+       echo m88k-tektronix-sysv3
+       exit 0 ;;
+    Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
+       echo m68k-tektronix-bsd
+       exit 0 ;;
+    *:IRIX*:*:*)
+       echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'`
+       exit 0 ;;
+    ????????:AIX?:[12].1:2)   # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
+       echo romp-ibm-aix      # uname -m gives an 8 hex-code CPU id
+       exit 0 ;;              # Note that: echo "'`uname -s`'" gives 'AIX '
+    i*86:AIX:*:*)
+       echo i386-ibm-aix
+       exit 0 ;;
+    ia64:AIX:*:*)
+       if [ -x /usr/bin/oslevel ] ; then
+               IBM_REV=`/usr/bin/oslevel`
+       else
+               IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
+       fi
+       echo ${UNAME_MACHINE}-ibm-aix${IBM_REV}
+       exit 0 ;;
+    *:AIX:2:3)
+       if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
+               eval $set_cc_for_build
+               sed 's/^                //' << EOF >$dummy.c
+               #include <sys/systemcfg.h>
+
+               main()
+                       {
+                       if (!__power_pc())
+                               exit(1);
+                       puts("powerpc-ibm-aix3.2.5");
+                       exit(0);
+                       }
+EOF
+               $CC_FOR_BUILD $dummy.c -o $dummy && $dummy && rm -f $dummy.c $dummy && rmdir $tmpdir && exit 0
+               rm -f $dummy.c $dummy && rmdir $tmpdir
+               echo rs6000-ibm-aix3.2.5
+       elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
+               echo rs6000-ibm-aix3.2.4
+       else
+               echo rs6000-ibm-aix3.2
+       fi
+       exit 0 ;;
+    *:AIX:*:[45])
+       IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
+       if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then
+               IBM_ARCH=rs6000
+       else
+               IBM_ARCH=powerpc
+       fi
+       if [ -x /usr/bin/oslevel ] ; then
+               IBM_REV=`/usr/bin/oslevel`
+       else
+               IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
+       fi
+       echo ${IBM_ARCH}-ibm-aix${IBM_REV}
+       exit 0 ;;
+    *:AIX:*:*)
+       echo rs6000-ibm-aix
+       exit 0 ;;
+    ibmrt:4.4BSD:*|romp-ibm:BSD:*)
+       echo romp-ibm-bsd4.4
+       exit 0 ;;
+    ibmrt:*BSD:*|romp-ibm:BSD:*)            # covers RT/PC BSD and
+       echo romp-ibm-bsd${UNAME_RELEASE}   # 4.3 with uname added to
+       exit 0 ;;                           # report: romp-ibm BSD 4.3
+    *:BOSX:*:*)
+       echo rs6000-bull-bosx
+       exit 0 ;;
+    DPX/2?00:B.O.S.:*:*)
+       echo m68k-bull-sysv3
+       exit 0 ;;
+    9000/[34]??:4.3bsd:1.*:*)
+       echo m68k-hp-bsd
+       exit 0 ;;
+    hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
+       echo m68k-hp-bsd4.4
+       exit 0 ;;
+    9000/[34678]??:HP-UX:*:*)
+       HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
+       case "${UNAME_MACHINE}" in
+           9000/31? )            HP_ARCH=m68000 ;;
+           9000/[34]?? )         HP_ARCH=m68k ;;
+           9000/[678][0-9][0-9])
+               if [ -x /usr/bin/getconf ]; then
+                   sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
+                    sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
+                    case "${sc_cpu_version}" in
+                      523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0
+                      528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1
+                      532)                      # CPU_PA_RISC2_0
+                        case "${sc_kernel_bits}" in
+                          32) HP_ARCH="hppa2.0n" ;;
+                          64) HP_ARCH="hppa2.0w" ;;
+                         '') HP_ARCH="hppa2.0" ;;   # HP-UX 10.20
+                        esac ;;
+                    esac
+               fi
+               if [ "${HP_ARCH}" = "" ]; then
+                   eval $set_cc_for_build
+                   sed 's/^              //' << EOF >$dummy.c
+
+              #define _HPUX_SOURCE
+              #include <stdlib.h>
+              #include <unistd.h>
+
+              int main ()
+              {
+              #if defined(_SC_KERNEL_BITS)
+                  long bits = sysconf(_SC_KERNEL_BITS);
+              #endif
+                  long cpu  = sysconf (_SC_CPU_VERSION);
+
+                  switch (cpu)
+               {
+               case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
+               case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
+               case CPU_PA_RISC2_0:
+              #if defined(_SC_KERNEL_BITS)
+                   switch (bits)
+                       {
+                       case 64: puts ("hppa2.0w"); break;
+                       case 32: puts ("hppa2.0n"); break;
+                       default: puts ("hppa2.0"); break;
+                       } break;
+              #else  /* !defined(_SC_KERNEL_BITS) */
+                   puts ("hppa2.0"); break;
+              #endif
+               default: puts ("hppa1.0"); break;
+               }
+                  exit (0);
+              }
+EOF
+                   (CCOPTS= $CC_FOR_BUILD $dummy.c -o $dummy 2>/dev/null) && HP_ARCH=`$dummy`
+                   if test -z "$HP_ARCH"; then HP_ARCH=hppa; fi
+                   rm -f $dummy.c $dummy && rmdir $tmpdir
+               fi ;;
+       esac
+       echo ${HP_ARCH}-hp-hpux${HPUX_REV}
+       exit 0 ;;
+    ia64:HP-UX:*:*)
+       HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
+       echo ia64-hp-hpux${HPUX_REV}
+       exit 0 ;;
+    3050*:HI-UX:*:*)
+       eval $set_cc_for_build
+       sed 's/^        //' << EOF >$dummy.c
+       #include <unistd.h>
+       int
+       main ()
+       {
+         long cpu = sysconf (_SC_CPU_VERSION);
+         /* The order matters, because CPU_IS_HP_MC68K erroneously returns
+            true for CPU_PA_RISC1_0.  CPU_IS_PA_RISC returns correct
+            results, however.  */
+         if (CPU_IS_PA_RISC (cpu))
+           {
+             switch (cpu)
+               {
+                 case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break;
+                 case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break;
+                 case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break;
+                 default: puts ("hppa-hitachi-hiuxwe2"); break;
+               }
+           }
+         else if (CPU_IS_HP_MC68K (cpu))
+           puts ("m68k-hitachi-hiuxwe2");
+         else puts ("unknown-hitachi-hiuxwe2");
+         exit (0);
+       }
+EOF
+       $CC_FOR_BUILD $dummy.c -o $dummy && $dummy && rm -f $dummy.c $dummy && rmdir $tmpdir && exit 0
+       rm -f $dummy.c $dummy && rmdir $tmpdir
+       echo unknown-hitachi-hiuxwe2
+       exit 0 ;;
+    9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* )
+       echo hppa1.1-hp-bsd
+       exit 0 ;;
+    9000/8??:4.3bsd:*:*)
+       echo hppa1.0-hp-bsd
+       exit 0 ;;
+    *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*)
+       echo hppa1.0-hp-mpeix
+       exit 0 ;;
+    hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* )
+       echo hppa1.1-hp-osf
+       exit 0 ;;
+    hp8??:OSF1:*:*)
+       echo hppa1.0-hp-osf
+       exit 0 ;;
+    i*86:OSF1:*:*)
+       if [ -x /usr/sbin/sysversion ] ; then
+           echo ${UNAME_MACHINE}-unknown-osf1mk
+       else
+           echo ${UNAME_MACHINE}-unknown-osf1
+       fi
+       exit 0 ;;
+    parisc*:Lites*:*:*)
+       echo hppa1.1-hp-lites
+       exit 0 ;;
+    C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
+       echo c1-convex-bsd
+        exit 0 ;;
+    C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
+       if getsysinfo -f scalar_acc
+       then echo c32-convex-bsd
+       else echo c2-convex-bsd
+       fi
+        exit 0 ;;
+    C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
+       echo c34-convex-bsd
+        exit 0 ;;
+    C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
+       echo c38-convex-bsd
+        exit 0 ;;
+    C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
+       echo c4-convex-bsd
+        exit 0 ;;
+    CRAY*Y-MP:*:*:*)
+       echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+       exit 0 ;;
+    CRAY*[A-Z]90:*:*:*)
+       echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \
+       | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
+             -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \
+             -e 's/\.[^.]*$/.X/'
+       exit 0 ;;
+    CRAY*TS:*:*:*)
+       echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+       exit 0 ;;
+    CRAY*T3D:*:*:*)
+       echo alpha-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+       exit 0 ;;
+    CRAY*T3E:*:*:*)
+       echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+       exit 0 ;;
+    CRAY*SV1:*:*:*)
+       echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+       exit 0 ;;
+    F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
+       FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
+        FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
+        FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'`
+        echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+        exit 0 ;;
+    i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
+       echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE}
+       exit 0 ;;
+    sparc*:BSD/OS:*:*)
+       echo sparc-unknown-bsdi${UNAME_RELEASE}
+       exit 0 ;;
+    *:BSD/OS:*:*)
+       echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE}
+       exit 0 ;;
+    *:FreeBSD:*:*)
+       # Determine whether the default compiler uses glibc.
+       eval $set_cc_for_build
+       sed 's/^        //' << EOF >$dummy.c
+       #include <features.h>
+       #if __GLIBC__ >= 2
+       LIBC=gnu
+       #else
+       LIBC=
+       #endif
+EOF
+       eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^LIBC=`
+       rm -f $dummy.c && rmdir $tmpdir
+       echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`${LIBC:+-$LIBC}
+       exit 0 ;;
+    i*:CYGWIN*:*)
+       echo ${UNAME_MACHINE}-pc-cygwin
+       exit 0 ;;
+    i*:MINGW*:*)
+       echo ${UNAME_MACHINE}-pc-mingw32
+       exit 0 ;;
+    i*:PW*:*)
+       echo ${UNAME_MACHINE}-pc-pw32
+       exit 0 ;;
+    x86:Interix*:3*)
+       echo i386-pc-interix3
+       exit 0 ;;
+    i*:Windows_NT*:* | Pentium*:Windows_NT*:*)
+       # How do we know it's Interix rather than the generic POSIX subsystem?
+       # It also conflicts with pre-2.0 versions of AT&T UWIN. Should we
+       # UNAME_MACHINE based on the output of uname instead of i386?
+       echo i386-pc-interix
+       exit 0 ;;
+    i*:UWIN*:*)
+       echo ${UNAME_MACHINE}-pc-uwin
+       exit 0 ;;
+    p*:CYGWIN*:*)
+       echo powerpcle-unknown-cygwin
+       exit 0 ;;
+    prep*:SunOS:5.*:*)
+       echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+       exit 0 ;;
+    *:GNU:*:*)
+       echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
+       exit 0 ;;
+    i*86:Minix:*:*)
+       echo ${UNAME_MACHINE}-pc-minix
+       exit 0 ;;
+    arm*:Linux:*:*)
+       echo ${UNAME_MACHINE}-unknown-linux-gnu
+       exit 0 ;;
+    ia64:Linux:*:*)
+       echo ${UNAME_MACHINE}-unknown-linux-gnu
+       exit 0 ;;
+    m68*:Linux:*:*)
+       echo ${UNAME_MACHINE}-unknown-linux-gnu
+       exit 0 ;;
+    mips:Linux:*:*)
+       eval $set_cc_for_build
+       sed 's/^        //' << EOF >$dummy.c
+       #undef CPU
+       #undef mips
+       #undef mipsel
+       #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
+       CPU=mipsel
+       #else
+       #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
+       CPU=mips
+       #else
+       CPU=
+       #endif
+       #endif
+EOF
+       eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^CPU=`
+       rm -f $dummy.c && rmdir $tmpdir
+       test x"${CPU}" != x && echo "${CPU}-pc-linux-gnu" && exit 0
+       ;;
+    ppc:Linux:*:*)
+       echo powerpc-unknown-linux-gnu
+       exit 0 ;;
+    ppc64:Linux:*:*)
+       echo powerpc64-unknown-linux-gnu
+       exit 0 ;;
+    alpha:Linux:*:*)
+       case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
+         EV5)   UNAME_MACHINE=alphaev5 ;;
+         EV56)  UNAME_MACHINE=alphaev56 ;;
+         PCA56) UNAME_MACHINE=alphapca56 ;;
+         PCA57) UNAME_MACHINE=alphapca56 ;;
+         EV6)   UNAME_MACHINE=alphaev6 ;;
+         EV67)  UNAME_MACHINE=alphaev67 ;;
+         EV68*) UNAME_MACHINE=alphaev68 ;;
+        esac
+       objdump --private-headers /bin/sh | grep ld.so.1 >/dev/null
+       if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi
+       echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC}
+       exit 0 ;;
+    parisc:Linux:*:* | hppa:Linux:*:*)
+       # Look for CPU level
+       case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
+         PA7*) echo hppa1.1-unknown-linux-gnu ;;
+         PA8*) echo hppa2.0-unknown-linux-gnu ;;
+         *)    echo hppa-unknown-linux-gnu ;;
+       esac
+       exit 0 ;;
+    parisc64:Linux:*:* | hppa64:Linux:*:*)
+       echo hppa64-unknown-linux-gnu
+       exit 0 ;;
+    s390:Linux:*:* | s390x:Linux:*:*)
+       echo ${UNAME_MACHINE}-ibm-linux
+       exit 0 ;;
+    sh*:Linux:*:*)
+       echo ${UNAME_MACHINE}-unknown-linux-gnu
+       exit 0 ;;
+    sparc:Linux:*:* | sparc64:Linux:*:*)
+       echo ${UNAME_MACHINE}-unknown-linux-gnu
+       exit 0 ;;
+    x86_64:Linux:*:*)
+       echo x86_64-unknown-linux-gnu
+       exit 0 ;;
+    i*86:Linux:*:*)
+       # The BFD linker knows what the default object file format is, so
+       # first see if it will tell us. cd to the root directory to prevent
+       # problems with other programs or directories called `ld' in the path.
+       # Set LC_ALL=C to ensure ld outputs messages in English.
+       ld_supported_targets=`cd /; LC_ALL=C ld --help 2>&1 \
+                        | sed -ne '/supported targets:/!d
+                                   s/[         ][      ]*/ /g
+                                   s/.*supported targets: *//
+                                   s/ .*//
+                                   p'`
+        case "$ld_supported_targets" in
+         elf32-i386)
+               TENTATIVE="${UNAME_MACHINE}-pc-linux-gnu"
+               ;;
+         a.out-i386-linux)
+               echo "${UNAME_MACHINE}-pc-linux-gnuaout"
+               exit 0 ;;
+         coff-i386)
+               echo "${UNAME_MACHINE}-pc-linux-gnucoff"
+               exit 0 ;;
+         "")
+               # Either a pre-BFD a.out linker (linux-gnuoldld) or
+               # one that does not give us useful --help.
+               echo "${UNAME_MACHINE}-pc-linux-gnuoldld"
+               exit 0 ;;
+       esac
+       # Determine whether the default compiler is a.out or elf
+       eval $set_cc_for_build
+       sed 's/^        //' << EOF >$dummy.c
+       #include <features.h>
+       #ifdef __ELF__
+       # ifdef __GLIBC__
+       #  if __GLIBC__ >= 2
+       LIBC=gnu
+       #  else
+       LIBC=gnulibc1
+       #  endif
+       # else
+       LIBC=gnulibc1
+       # endif
+       #else
+       #ifdef __INTEL_COMPILER
+       LIBC=gnu
+       #else
+       LIBC=gnuaout
+       #endif
+       #endif
+EOF
+       eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^LIBC=`
+       rm -f $dummy.c && rmdir $tmpdir
+       test x"${LIBC}" != x && echo "${UNAME_MACHINE}-pc-linux-${LIBC}" && exit 0
+       test x"${TENTATIVE}" != x && echo "${TENTATIVE}" && exit 0
+       ;;
+    i*86:DYNIX/ptx:4*:*)
+       # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
+       # earlier versions are messed up and put the nodename in both
+       # sysname and nodename.
+       echo i386-sequent-sysv4
+       exit 0 ;;
+    i*86:UNIX_SV:4.2MP:2.*)
+        # Unixware is an offshoot of SVR4, but it has its own version
+        # number series starting with 2...
+        # I am not positive that other SVR4 systems won't match this,
+       # I just have to hope.  -- rms.
+        # Use sysv4.2uw... so that sysv4* matches it.
+       echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION}
+       exit 0 ;;
+    i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*)
+       UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'`
+       if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
+               echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL}
+       else
+               echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL}
+       fi
+       exit 0 ;;
+    i*86:*:5:[78]*)
+       case `/bin/uname -X | grep "^Machine"` in
+           *486*)           UNAME_MACHINE=i486 ;;
+           *Pentium)        UNAME_MACHINE=i586 ;;
+           *Pent*|*Celeron) UNAME_MACHINE=i686 ;;
+       esac
+       echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION}
+       exit 0 ;;
+    i*86:*:3.2:*)
+       if test -f /usr/options/cb.name; then
+               UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name`
+               echo ${UNAME_MACHINE}-pc-isc$UNAME_REL
+       elif /bin/uname -X 2>/dev/null >/dev/null ; then
+               UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')`
+               (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486
+               (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \
+                       && UNAME_MACHINE=i586
+               (/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \
+                       && UNAME_MACHINE=i686
+               (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \
+                       && UNAME_MACHINE=i686
+               echo ${UNAME_MACHINE}-pc-sco$UNAME_REL
+       else
+               echo ${UNAME_MACHINE}-pc-sysv32
+       fi
+       exit 0 ;;
+    i*86:*DOS:*:*)
+       echo ${UNAME_MACHINE}-pc-msdosdjgpp
+       exit 0 ;;
+    pc:*:*:*)
+       # Left here for compatibility:
+        # uname -m prints for DJGPP always 'pc', but it prints nothing about
+        # the processor, so we play safe by assuming i386.
+       echo i386-pc-msdosdjgpp
+        exit 0 ;;
+    Intel:Mach:3*:*)
+       echo i386-pc-mach3
+       exit 0 ;;
+    paragon:*:*:*)
+       echo i860-intel-osf1
+       exit 0 ;;
+    i860:*:4.*:*) # i860-SVR4
+       if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then
+         echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4
+       else # Add other i860-SVR4 vendors below as they are discovered.
+         echo i860-unknown-sysv${UNAME_RELEASE}  # Unknown i860-SVR4
+       fi
+       exit 0 ;;
+    mini*:CTIX:SYS*5:*)
+       # "miniframe"
+       echo m68010-convergent-sysv
+       exit 0 ;;
+    mc68k:UNIX:SYSTEM5:3.51m)
+       echo m68k-convergent-sysv
+       exit 0 ;;
+    M68*:*:R3V[567]*:*)
+       test -r /sysV68 && echo 'm68k-motorola-sysv' && exit 0 ;;
+    3[34]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0)
+       OS_REL=''
+       test -r /etc/.relid \
+       && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
+       /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+         && echo i486-ncr-sysv4.3${OS_REL} && exit 0
+       /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
+         && echo i586-ncr-sysv4.3${OS_REL} && exit 0 ;;
+    3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
+        /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+          && echo i486-ncr-sysv4 && exit 0 ;;
+    m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*)
+       echo m68k-unknown-lynxos${UNAME_RELEASE}
+       exit 0 ;;
+    mc68030:UNIX_System_V:4.*:*)
+       echo m68k-atari-sysv4
+       exit 0 ;;
+    i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.0*:*)
+       echo i386-unknown-lynxos${UNAME_RELEASE}
+       exit 0 ;;
+    TSUNAMI:LynxOS:2.*:*)
+       echo sparc-unknown-lynxos${UNAME_RELEASE}
+       exit 0 ;;
+    rs6000:LynxOS:2.*:*)
+       echo rs6000-unknown-lynxos${UNAME_RELEASE}
+       exit 0 ;;
+    PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.0*:*)
+       echo powerpc-unknown-lynxos${UNAME_RELEASE}
+       exit 0 ;;
+    SM[BE]S:UNIX_SV:*:*)
+       echo mips-dde-sysv${UNAME_RELEASE}
+       exit 0 ;;
+    RM*:ReliantUNIX-*:*:*)
+       echo mips-sni-sysv4
+       exit 0 ;;
+    RM*:SINIX-*:*:*)
+       echo mips-sni-sysv4
+       exit 0 ;;
+    *:SINIX-*:*:*)
+       if uname -p 2>/dev/null >/dev/null ; then
+               UNAME_MACHINE=`(uname -p) 2>/dev/null`
+               echo ${UNAME_MACHINE}-sni-sysv4
+       else
+               echo ns32k-sni-sysv
+       fi
+       exit 0 ;;
+    PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort
+                      # says <Richard.M.Bartel@ccMail.Census.GOV>
+        echo i586-unisys-sysv4
+        exit 0 ;;
+    *:UNIX_System_V:4*:FTX*)
+       # From Gerald Hewes <hewes@openmarket.com>.
+       # How about differentiating between stratus architectures? -djm
+       echo hppa1.1-stratus-sysv4
+       exit 0 ;;
+    *:*:*:FTX*)
+       # From seanf@swdc.stratus.com.
+       echo i860-stratus-sysv4
+       exit 0 ;;
+    *:VOS:*:*)
+       # From Paul.Green@stratus.com.
+       echo hppa1.1-stratus-vos
+       exit 0 ;;
+    mc68*:A/UX:*:*)
+       echo m68k-apple-aux${UNAME_RELEASE}
+       exit 0 ;;
+    news*:NEWS-OS:6*:*)
+       echo mips-sony-newsos6
+       exit 0 ;;
+    R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
+       if [ -d /usr/nec ]; then
+               echo mips-nec-sysv${UNAME_RELEASE}
+       else
+               echo mips-unknown-sysv${UNAME_RELEASE}
+       fi
+        exit 0 ;;
+    BeBox:BeOS:*:*)    # BeOS running on hardware made by Be, PPC only.
+       echo powerpc-be-beos
+       exit 0 ;;
+    BeMac:BeOS:*:*)    # BeOS running on Mac or Mac clone, PPC only.
+       echo powerpc-apple-beos
+       exit 0 ;;
+    BePC:BeOS:*:*)     # BeOS running on Intel PC compatible.
+       echo i586-pc-beos
+       exit 0 ;;
+    SX-4:SUPER-UX:*:*)
+       echo sx4-nec-superux${UNAME_RELEASE}
+       exit 0 ;;
+    SX-5:SUPER-UX:*:*)
+       echo sx5-nec-superux${UNAME_RELEASE}
+       exit 0 ;;
+    SX-6:SUPER-UX:*:*)
+       echo sx6-nec-superux${UNAME_RELEASE}
+       exit 0 ;;
+    Power*:Rhapsody:*:*)
+       echo powerpc-apple-rhapsody${UNAME_RELEASE}
+       exit 0 ;;
+    *:Rhapsody:*:*)
+       echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE}
+       exit 0 ;;
+    *:Darwin:*:*)
+       echo `uname -p`-apple-darwin${UNAME_RELEASE}
+       exit 0 ;;
+    *:procnto*:*:* | *:QNX:[0123456789]*:*)
+       UNAME_PROCESSOR=`uname -p`
+       if test "$UNAME_PROCESSOR" = "x86"; then
+               UNAME_PROCESSOR=i386
+               UNAME_MACHINE=pc
+       fi
+       echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE}
+       exit 0 ;;
+    *:QNX:*:4*)
+       echo i386-pc-qnx
+       exit 0 ;;
+    NSR-[DGKLNPTVW]:NONSTOP_KERNEL:*:*)
+       echo nsr-tandem-nsk${UNAME_RELEASE}
+       exit 0 ;;
+    *:NonStop-UX:*:*)
+       echo mips-compaq-nonstopux
+       exit 0 ;;
+    BS2000:POSIX*:*:*)
+       echo bs2000-siemens-sysv
+       exit 0 ;;
+    DS/*:UNIX_System_V:*:*)
+       echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE}
+       exit 0 ;;
+    *:Plan9:*:*)
+       # "uname -m" is not consistent, so use $cputype instead. 386
+       # is converted to i386 for consistency with other x86
+       # operating systems.
+       if test "$cputype" = "386"; then
+           UNAME_MACHINE=i386
+       else
+           UNAME_MACHINE="$cputype"
+       fi
+       echo ${UNAME_MACHINE}-unknown-plan9
+       exit 0 ;;
+    i*86:OS/2:*:*)
+       # If we were able to find `uname', then EMX Unix compatibility
+       # is probably installed.
+       echo ${UNAME_MACHINE}-pc-os2-emx
+       exit 0 ;;
+    *:TOPS-10:*:*)
+       echo pdp10-unknown-tops10
+       exit 0 ;;
+    *:TENEX:*:*)
+       echo pdp10-unknown-tenex
+       exit 0 ;;
+    KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*)
+       echo pdp10-dec-tops20
+       exit 0 ;;
+    XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*)
+       echo pdp10-xkl-tops20
+       exit 0 ;;
+    *:TOPS-20:*:*)
+       echo pdp10-unknown-tops20
+       exit 0 ;;
+    *:ITS:*:*)
+       echo pdp10-unknown-its
+       exit 0 ;;
+    i*86:XTS-300:*:STOP)
+       echo ${UNAME_MACHINE}-unknown-stop
+       exit 0 ;;
+    i*86:atheos:*:*)
+       echo ${UNAME_MACHINE}-unknown-atheos
+       exit 0 ;;
+esac
+
+#echo '(No uname command or uname output not recognized.)' 1>&2
+#echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2
+
+eval $set_cc_for_build
+cat >$dummy.c <<EOF
+#ifdef _SEQUENT_
+# include <sys/types.h>
+# include <sys/utsname.h>
+#endif
+main ()
+{
+#if defined (sony)
+#if defined (MIPSEB)
+  /* BFD wants "bsd" instead of "newsos".  Perhaps BFD should be changed,
+     I don't know....  */
+  printf ("mips-sony-bsd\n"); exit (0);
+#else
+#include <sys/param.h>
+  printf ("m68k-sony-newsos%s\n",
+#ifdef NEWSOS4
+          "4"
+#else
+         ""
+#endif
+         ); exit (0);
+#endif
+#endif
+
+#if defined (__arm) && defined (__acorn) && defined (__unix)
+  printf ("arm-acorn-riscix"); exit (0);
+#endif
+
+#if defined (hp300) && !defined (hpux)
+  printf ("m68k-hp-bsd\n"); exit (0);
+#endif
+
+#if defined (NeXT)
+#if !defined (__ARCHITECTURE__)
+#define __ARCHITECTURE__ "m68k"
+#endif
+  int version;
+  version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`;
+  if (version < 4)
+    printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version);
+  else
+    printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version);
+  exit (0);
+#endif
+
+#if defined (MULTIMAX) || defined (n16)
+#if defined (UMAXV)
+  printf ("ns32k-encore-sysv\n"); exit (0);
+#else
+#if defined (CMU)
+  printf ("ns32k-encore-mach\n"); exit (0);
+#else
+  printf ("ns32k-encore-bsd\n"); exit (0);
+#endif
+#endif
+#endif
+
+#if defined (__386BSD__)
+  printf ("i386-pc-bsd\n"); exit (0);
+#endif
+
+#if defined (sequent)
+#if defined (i386)
+  printf ("i386-sequent-dynix\n"); exit (0);
+#endif
+#if defined (ns32000)
+  printf ("ns32k-sequent-dynix\n"); exit (0);
+#endif
+#endif
+
+#if defined (_SEQUENT_)
+    struct utsname un;
+
+    uname(&un);
+
+    if (strncmp(un.version, "V2", 2) == 0) {
+       printf ("i386-sequent-ptx2\n"); exit (0);
+    }
+    if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */
+       printf ("i386-sequent-ptx1\n"); exit (0);
+    }
+    printf ("i386-sequent-ptx\n"); exit (0);
+
+#endif
+
+#if defined (vax)
+# if !defined (ultrix)
+#  include <sys/param.h>
+#  if defined (BSD)
+#   if BSD == 43
+      printf ("vax-dec-bsd4.3\n"); exit (0);
+#   else
+#    if BSD == 199006
+      printf ("vax-dec-bsd4.3reno\n"); exit (0);
+#    else
+      printf ("vax-dec-bsd\n"); exit (0);
+#    endif
+#   endif
+#  else
+    printf ("vax-dec-bsd\n"); exit (0);
+#  endif
+# else
+    printf ("vax-dec-ultrix\n"); exit (0);
+# endif
+#endif
+
+#if defined (alliant) && defined (i860)
+  printf ("i860-alliant-bsd\n"); exit (0);
+#endif
+
+  exit (1);
+}
+EOF
+
+$CC_FOR_BUILD $dummy.c -o $dummy 2>/dev/null && $dummy && rm -f $dummy.c $dummy && rmdir $tmpdir && exit 0
+rm -f $dummy.c $dummy && rmdir $tmpdir
+
+# Apollos put the system type in the environment.
+
+test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit 0; }
+
+# Convex versions that predate uname can use getsysinfo(1)
+
+if [ -x /usr/convex/getsysinfo ]
+then
+    case `getsysinfo -f cpu_type` in
+    c1*)
+       echo c1-convex-bsd
+       exit 0 ;;
+    c2*)
+       if getsysinfo -f scalar_acc
+       then echo c32-convex-bsd
+       else echo c2-convex-bsd
+       fi
+       exit 0 ;;
+    c34*)
+       echo c34-convex-bsd
+       exit 0 ;;
+    c38*)
+       echo c38-convex-bsd
+       exit 0 ;;
+    c4*)
+       echo c4-convex-bsd
+       exit 0 ;;
+    esac
+fi
+
+cat >&2 <<EOF
+$0: unable to guess system type
+
+This script, last modified $timestamp, has failed to recognize
+the operating system you are using. It is advised that you
+download the most up to date version of the config scripts from
+
+    ftp://ftp.gnu.org/pub/gnu/config/
+
+If the version you run ($0) is already up to date, please
+send the following data and any information you think might be
+pertinent to <config-patches@gnu.org> in order to provide the needed
+information to handle your system.
+
+config.guess timestamp = $timestamp
+
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null`
+
+hostinfo               = `(hostinfo) 2>/dev/null`
+/bin/universe          = `(/bin/universe) 2>/dev/null`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null`
+/bin/arch              = `(/bin/arch) 2>/dev/null`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null`
+
+UNAME_MACHINE = ${UNAME_MACHINE}
+UNAME_RELEASE = ${UNAME_RELEASE}
+UNAME_SYSTEM  = ${UNAME_SYSTEM}
+UNAME_VERSION = ${UNAME_VERSION}
+EOF
+
+exit 1
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/config.h.in b/config.h.in
new file mode 100644 (file)
index 0000000..a6c7dcc
--- /dev/null
@@ -0,0 +1,73 @@
+/* config.h.in.  Generated from configure.in by autoheader.  */
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#undef HAVE_DLFCN_H
+
+/* Define if FTW_ACTIONRETVAL is supported. */
+#undef HAVE_FTW_ACTIONRETVAL
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#undef HAVE_INTTYPES_H
+
+/* Define to 1 if you have the `elf' library (-lelf). */
+#undef HAVE_LIBELF
+
+/* Define to 1 if you have the `selinux' library (-lselinux). */
+#undef HAVE_LIBSELINUX
+
+/* Define to 1 if you have the <memory.h> header file. */
+#undef HAVE_MEMORY_H
+
+/* Define to 1 if you have the <selinux/selinux.h> header file. */
+#undef HAVE_SELINUX_SELINUX_H
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#undef HAVE_STDINT_H
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#undef HAVE_STDLIB_H
+
+/* Define to 1 if you have the <strings.h> header file. */
+#undef HAVE_STRINGS_H
+
+/* Define to 1 if you have the <string.h> header file. */
+#undef HAVE_STRING_H
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#undef HAVE_SYS_STAT_H
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#undef HAVE_SYS_TYPES_H
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#undef HAVE_UNISTD_H
+
+/* Name of package */
+#undef PACKAGE
+
+/* Define to the address where bug reports for this package should be sent. */
+#undef PACKAGE_BUGREPORT
+
+/* Define to the full name of this package. */
+#undef PACKAGE_NAME
+
+/* Define to the full name and version of this package. */
+#undef PACKAGE_STRING
+
+/* Define to the one symbol short name of this package. */
+#undef PACKAGE_TARNAME
+
+/* Define to the version of this package. */
+#undef PACKAGE_VERSION
+
+/* Define to 1 if you have the ANSI C header files. */
+#undef STDC_HEADERS
+
+/* Version number of package */
+#undef VERSION
+
+/* Number of bits in a file offset, on hosts where this is settable. */
+#undef _FILE_OFFSET_BITS
+
+/* Define for large files, on AIX-style hosts. */
+#undef _LARGE_FILES
diff --git a/config.sub b/config.sub
new file mode 100755 (executable)
index 0000000..1dea9b7
--- /dev/null
@@ -0,0 +1,1470 @@
+#! /bin/sh
+# Configuration validation subroutine script.
+#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+#   2000, 2001, 2002 Free Software Foundation, Inc.
+
+timestamp='2002-09-05'
+
+# This file is (in principle) common to ALL GNU software.
+# The presence of a machine in this file suggests that SOME GNU software
+# can handle that machine.  It does not imply ALL GNU software can.
+#
+# This file is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# Please send patches to <config-patches@gnu.org>.  Submit a context
+# diff and a properly formatted ChangeLog entry.
+#
+# Configuration subroutine to validate and canonicalize a configuration type.
+# Supply the specified configuration type as an argument.
+# If it is invalid, we print an error message on stderr and exit with code 1.
+# Otherwise, we print the canonical config type on stdout and succeed.
+
+# This file is supposed to be the same for all GNU packages
+# and recognize all the CPU types, system types and aliases
+# that are meaningful with *any* GNU software.
+# Each package is responsible for reporting which valid configurations
+# it does not support.  The user should be able to distinguish
+# a failure to support a valid configuration from a meaningless
+# configuration.
+
+# The goal of this file is to map all the various variations of a given
+# machine specification into a single specification in the form:
+#      CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
+# or in some cases, the newer four-part form:
+#      CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
+# It is wrong to echo any other type of specification.
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION] CPU-MFR-OPSYS
+       $0 [OPTION] ALIAS
+
+Canonicalize a configuration name.
+
+Operation modes:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.sub ($timestamp)
+
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
+Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit 0 ;;
+    --version | -v )
+       echo "$version" ; exit 0 ;;
+    --help | --h* | -h )
+       echo "$usage"; exit 0 ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )        # Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help"
+       exit 1 ;;
+
+    *local*)
+       # First pass through any local machine types.
+       echo $1
+       exit 0;;
+
+    * )
+       break ;;
+  esac
+done
+
+case $# in
+ 0) echo "$me: missing argument$help" >&2
+    exit 1;;
+ 1) ;;
+ *) echo "$me: too many arguments$help" >&2
+    exit 1;;
+esac
+
+# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
+# Here we must recognize all the valid KERNEL-OS combinations.
+maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
+case $maybe_os in
+  nto-qnx* | linux-gnu* | freebsd*-gnu* | storm-chaos* | os2-emx* | windows32-* | rtmk-nova*)
+    os=-$maybe_os
+    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
+    ;;
+  *)
+    basic_machine=`echo $1 | sed 's/-[^-]*$//'`
+    if [ $basic_machine != $1 ]
+    then os=`echo $1 | sed 's/.*-/-/'`
+    else os=; fi
+    ;;
+esac
+
+### Let's recognize common machines as not being operating systems so
+### that things like config.sub decstation-3100 work.  We also
+### recognize some manufacturers as not being operating systems, so we
+### can provide default operating systems below.
+case $os in
+       -sun*os*)
+               # Prevent following clause from handling this invalid input.
+               ;;
+       -dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \
+       -att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \
+       -unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \
+       -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
+       -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
+       -harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
+       -apple | -axis)
+               os=
+               basic_machine=$1
+               ;;
+       -sim | -cisco | -oki | -wec | -winbond)
+               os=
+               basic_machine=$1
+               ;;
+       -scout)
+               ;;
+       -wrs)
+               os=-vxworks
+               basic_machine=$1
+               ;;
+       -chorusos*)
+               os=-chorusos
+               basic_machine=$1
+               ;;
+       -chorusrdb)
+               os=-chorusrdb
+               basic_machine=$1
+               ;;
+       -hiux*)
+               os=-hiuxwe2
+               ;;
+       -sco5)
+               os=-sco3.2v5
+               basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+               ;;
+       -sco4)
+               os=-sco3.2v4
+               basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+               ;;
+       -sco3.2.[4-9]*)
+               os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
+               basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+               ;;
+       -sco3.2v[4-9]*)
+               # Don't forget version if it is 3.2v4 or newer.
+               basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+               ;;
+       -sco*)
+               os=-sco3.2v2
+               basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+               ;;
+       -udk*)
+               basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+               ;;
+       -isc)
+               os=-isc2.2
+               basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+               ;;
+       -clix*)
+               basic_machine=clipper-intergraph
+               ;;
+       -isc*)
+               basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+               ;;
+       -lynx*)
+               os=-lynxos
+               ;;
+       -ptx*)
+               basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'`
+               ;;
+       -windowsnt*)
+               os=`echo $os | sed -e 's/windowsnt/winnt/'`
+               ;;
+       -psos*)
+               os=-psos
+               ;;
+       -mint | -mint[0-9]*)
+               basic_machine=m68k-atari
+               os=-mint
+               ;;
+esac
+
+# Decode aliases for certain CPU-COMPANY combinations.
+case $basic_machine in
+       # Recognize the basic CPU types without company name.
+       # Some are omitted here because they have special meanings below.
+       1750a | 580 \
+       | a29k \
+       | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
+       | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
+       | arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr \
+       | clipper \
+       | d10v | d30v | dlx | dsp16xx \
+       | fr30 | frv \
+       | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
+       | i370 | i860 | i960 | ia64 \
+       | ip2k \
+       | m32r | m68000 | m68k | m88k | mcore \
+       | mips | mipsbe | mipseb | mipsel | mipsle \
+       | mips16 \
+       | mips64 | mips64el \
+       | mips64vr | mips64vrel \
+       | mips64orion | mips64orionel \
+       | mips64vr4100 | mips64vr4100el \
+       | mips64vr4300 | mips64vr4300el \
+       | mips64vr5000 | mips64vr5000el \
+       | mipsisa32 | mipsisa32el \
+       | mipsisa64 | mipsisa64el \
+       | mipsisa64sb1 | mipsisa64sb1el \
+       | mipsisa64sr71k | mipsisa64sr71kel \
+       | mipstx39 | mipstx39el \
+       | mn10200 | mn10300 \
+       | ns16k | ns32k \
+       | openrisc | or32 \
+       | pdp10 | pdp11 | pj | pjl \
+       | powerpc | powerpc64 | powerpc64le | powerpcle | ppcbe \
+       | pyramid \
+       | sh | sh[1234] | sh3e | sh[34]eb | shbe | shle | sh[1234]le | sh3ele \
+       | sh64 | sh64le \
+       | sparc | sparc64 | sparc86x | sparclet | sparclite | sparcv9 | sparcv9b \
+       | strongarm \
+       | tahoe | thumb | tic80 | tron \
+       | v850 | v850e \
+       | we32k \
+       | x86 | xscale | xstormy16 | xtensa \
+       | z8k)
+               basic_machine=$basic_machine-unknown
+               ;;
+       m6811 | m68hc11 | m6812 | m68hc12)
+               # Motorola 68HC11/12.
+               basic_machine=$basic_machine-unknown
+               os=-none
+               ;;
+       m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k)
+               ;;
+
+       # We use `pc' rather than `unknown'
+       # because (1) that's what they normally are, and
+       # (2) the word "unknown" tends to confuse beginning users.
+       i*86 | x86_64)
+         basic_machine=$basic_machine-pc
+         ;;
+       # Object if more than one company name word.
+       *-*-*)
+               echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
+               exit 1
+               ;;
+       # Recognize the basic CPU types with company name.
+       580-* \
+       | a29k-* \
+       | alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
+       | alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
+       | alphapca5[67]-* | alpha64pca5[67]-* | arc-* \
+       | arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
+       | avr-* \
+       | bs2000-* \
+       | c[123]* | c30-* | [cjt]90-* | c4x-* | c54x-* \
+       | clipper-* | cydra-* \
+       | d10v-* | d30v-* | dlx-* \
+       | elxsi-* \
+       | f30[01]-* | f700-* | fr30-* | frv-* | fx80-* \
+       | h8300-* | h8500-* \
+       | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
+       | i*86-* | i860-* | i960-* | ia64-* \
+       | ip2k-* \
+       | m32r-* \
+       | m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
+       | m88110-* | m88k-* | mcore-* \
+       | mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
+       | mips16-* \
+       | mips64-* | mips64el-* \
+       | mips64vr-* | mips64vrel-* \
+       | mips64orion-* | mips64orionel-* \
+       | mips64vr4100-* | mips64vr4100el-* \
+       | mips64vr4300-* | mips64vr4300el-* \
+       | mips64vr5000-* | mips64vr5000el-* \
+       | mipsisa32-* | mipsisa32el-* \
+       | mipsisa64-* | mipsisa64el-* \
+       | mipsisa64sb1-* | mipsisa64sb1el-* \
+       | mipsisa64sr71k-* | mipsisa64sr71kel-* \
+       | mipstx39 | mipstx39el \
+       | none-* | np1-* | ns16k-* | ns32k-* \
+       | orion-* \
+       | pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
+       | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* | ppcbe-* \
+       | pyramid-* \
+       | romp-* | rs6000-* \
+       | sh-* | sh[1234]-* | sh3e-* | sh[34]eb-* | shbe-* \
+       | shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
+       | sparc-* | sparc64-* | sparc86x-* | sparclet-* | sparclite-* \
+       | sparcv9-* | sparcv9b-* | strongarm-* | sv1-* | sx?-* \
+       | tahoe-* | thumb-* | tic30-* | tic4x-* | tic54x-* | tic80-* | tron-* \
+       | v850-* | v850e-* | vax-* \
+       | we32k-* \
+       | x86-* | x86_64-* | xps100-* | xscale-* | xstormy16-* \
+       | xtensa-* \
+       | ymp-* \
+       | z8k-*)
+               ;;
+       # Recognize the various machine names and aliases which stand
+       # for a CPU type and a company and sometimes even an OS.
+       386bsd)
+               basic_machine=i386-unknown
+               os=-bsd
+               ;;
+       3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
+               basic_machine=m68000-att
+               ;;
+       3b*)
+               basic_machine=we32k-att
+               ;;
+       a29khif)
+               basic_machine=a29k-amd
+               os=-udi
+               ;;
+       adobe68k)
+               basic_machine=m68010-adobe
+               os=-scout
+               ;;
+       alliant | fx80)
+               basic_machine=fx80-alliant
+               ;;
+       altos | altos3068)
+               basic_machine=m68k-altos
+               ;;
+       am29k)
+               basic_machine=a29k-none
+               os=-bsd
+               ;;
+       amdahl)
+               basic_machine=580-amdahl
+               os=-sysv
+               ;;
+       amiga | amiga-*)
+               basic_machine=m68k-unknown
+               ;;
+       amigaos | amigados)
+               basic_machine=m68k-unknown
+               os=-amigaos
+               ;;
+       amigaunix | amix)
+               basic_machine=m68k-unknown
+               os=-sysv4
+               ;;
+       apollo68)
+               basic_machine=m68k-apollo
+               os=-sysv
+               ;;
+       apollo68bsd)
+               basic_machine=m68k-apollo
+               os=-bsd
+               ;;
+       aux)
+               basic_machine=m68k-apple
+               os=-aux
+               ;;
+       balance)
+               basic_machine=ns32k-sequent
+               os=-dynix
+               ;;
+       c90)
+               basic_machine=c90-cray
+               os=-unicos
+               ;;
+       convex-c1)
+               basic_machine=c1-convex
+               os=-bsd
+               ;;
+       convex-c2)
+               basic_machine=c2-convex
+               os=-bsd
+               ;;
+       convex-c32)
+               basic_machine=c32-convex
+               os=-bsd
+               ;;
+       convex-c34)
+               basic_machine=c34-convex
+               os=-bsd
+               ;;
+       convex-c38)
+               basic_machine=c38-convex
+               os=-bsd
+               ;;
+       cray | j90)
+               basic_machine=j90-cray
+               os=-unicos
+               ;;
+       crds | unos)
+               basic_machine=m68k-crds
+               ;;
+       cris | cris-* | etrax*)
+               basic_machine=cris-axis
+               ;;
+       da30 | da30-*)
+               basic_machine=m68k-da30
+               ;;
+       decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn)
+               basic_machine=mips-dec
+               ;;
+       decsystem10* | dec10*)
+               basic_machine=pdp10-dec
+               os=-tops10
+               ;;
+       decsystem20* | dec20*)
+               basic_machine=pdp10-dec
+               os=-tops20
+               ;;
+       delta | 3300 | motorola-3300 | motorola-delta \
+             | 3300-motorola | delta-motorola)
+               basic_machine=m68k-motorola
+               ;;
+       delta88)
+               basic_machine=m88k-motorola
+               os=-sysv3
+               ;;
+       dpx20 | dpx20-*)
+               basic_machine=rs6000-bull
+               os=-bosx
+               ;;
+       dpx2* | dpx2*-bull)
+               basic_machine=m68k-bull
+               os=-sysv3
+               ;;
+       ebmon29k)
+               basic_machine=a29k-amd
+               os=-ebmon
+               ;;
+       elxsi)
+               basic_machine=elxsi-elxsi
+               os=-bsd
+               ;;
+       encore | umax | mmax)
+               basic_machine=ns32k-encore
+               ;;
+       es1800 | OSE68k | ose68k | ose | OSE)
+               basic_machine=m68k-ericsson
+               os=-ose
+               ;;
+       fx2800)
+               basic_machine=i860-alliant
+               ;;
+       genix)
+               basic_machine=ns32k-ns
+               ;;
+       gmicro)
+               basic_machine=tron-gmicro
+               os=-sysv
+               ;;
+       go32)
+               basic_machine=i386-pc
+               os=-go32
+               ;;
+       h3050r* | hiux*)
+               basic_machine=hppa1.1-hitachi
+               os=-hiuxwe2
+               ;;
+       h8300hms)
+               basic_machine=h8300-hitachi
+               os=-hms
+               ;;
+       h8300xray)
+               basic_machine=h8300-hitachi
+               os=-xray
+               ;;
+       h8500hms)
+               basic_machine=h8500-hitachi
+               os=-hms
+               ;;
+       harris)
+               basic_machine=m88k-harris
+               os=-sysv3
+               ;;
+       hp300-*)
+               basic_machine=m68k-hp
+               ;;
+       hp300bsd)
+               basic_machine=m68k-hp
+               os=-bsd
+               ;;
+       hp300hpux)
+               basic_machine=m68k-hp
+               os=-hpux
+               ;;
+       hp3k9[0-9][0-9] | hp9[0-9][0-9])
+               basic_machine=hppa1.0-hp
+               ;;
+       hp9k2[0-9][0-9] | hp9k31[0-9])
+               basic_machine=m68000-hp
+               ;;
+       hp9k3[2-9][0-9])
+               basic_machine=m68k-hp
+               ;;
+       hp9k6[0-9][0-9] | hp6[0-9][0-9])
+               basic_machine=hppa1.0-hp
+               ;;
+       hp9k7[0-79][0-9] | hp7[0-79][0-9])
+               basic_machine=hppa1.1-hp
+               ;;
+       hp9k78[0-9] | hp78[0-9])
+               # FIXME: really hppa2.0-hp
+               basic_machine=hppa1.1-hp
+               ;;
+       hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
+               # FIXME: really hppa2.0-hp
+               basic_machine=hppa1.1-hp
+               ;;
+       hp9k8[0-9][13679] | hp8[0-9][13679])
+               basic_machine=hppa1.1-hp
+               ;;
+       hp9k8[0-9][0-9] | hp8[0-9][0-9])
+               basic_machine=hppa1.0-hp
+               ;;
+       hppa-next)
+               os=-nextstep3
+               ;;
+       hppaosf)
+               basic_machine=hppa1.1-hp
+               os=-osf
+               ;;
+       hppro)
+               basic_machine=hppa1.1-hp
+               os=-proelf
+               ;;
+       i370-ibm* | ibm*)
+               basic_machine=i370-ibm
+               ;;
+# I'm not sure what "Sysv32" means.  Should this be sysv3.2?
+       i*86v32)
+               basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+               os=-sysv32
+               ;;
+       i*86v4*)
+               basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+               os=-sysv4
+               ;;
+       i*86v)
+               basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+               os=-sysv
+               ;;
+       i*86sol2)
+               basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+               os=-solaris2
+               ;;
+       i386mach)
+               basic_machine=i386-mach
+               os=-mach
+               ;;
+       i386-vsta | vsta)
+               basic_machine=i386-unknown
+               os=-vsta
+               ;;
+       iris | iris4d)
+               basic_machine=mips-sgi
+               case $os in
+                   -irix*)
+                       ;;
+                   *)
+                       os=-irix4
+                       ;;
+               esac
+               ;;
+       isi68 | isi)
+               basic_machine=m68k-isi
+               os=-sysv
+               ;;
+       m88k-omron*)
+               basic_machine=m88k-omron
+               ;;
+       magnum | m3230)
+               basic_machine=mips-mips
+               os=-sysv
+               ;;
+       merlin)
+               basic_machine=ns32k-utek
+               os=-sysv
+               ;;
+       mingw32)
+               basic_machine=i386-pc
+               os=-mingw32
+               ;;
+       miniframe)
+               basic_machine=m68000-convergent
+               ;;
+       *mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*)
+               basic_machine=m68k-atari
+               os=-mint
+               ;;
+       mips3*-*)
+               basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`
+               ;;
+       mips3*)
+               basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown
+               ;;
+       mmix*)
+               basic_machine=mmix-knuth
+               os=-mmixware
+               ;;
+       monitor)
+               basic_machine=m68k-rom68k
+               os=-coff
+               ;;
+       morphos)
+               basic_machine=powerpc-unknown
+               os=-morphos
+               ;;
+       msdos)
+               basic_machine=i386-pc
+               os=-msdos
+               ;;
+       mvs)
+               basic_machine=i370-ibm
+               os=-mvs
+               ;;
+       ncr3000)
+               basic_machine=i486-ncr
+               os=-sysv4
+               ;;
+       netbsd386)
+               basic_machine=i386-unknown
+               os=-netbsd
+               ;;
+       netwinder)
+               basic_machine=armv4l-rebel
+               os=-linux
+               ;;
+       news | news700 | news800 | news900)
+               basic_machine=m68k-sony
+               os=-newsos
+               ;;
+       news1000)
+               basic_machine=m68030-sony
+               os=-newsos
+               ;;
+       news-3600 | risc-news)
+               basic_machine=mips-sony
+               os=-newsos
+               ;;
+       necv70)
+               basic_machine=v70-nec
+               os=-sysv
+               ;;
+       next | m*-next )
+               basic_machine=m68k-next
+               case $os in
+                   -nextstep* )
+                       ;;
+                   -ns2*)
+                     os=-nextstep2
+                       ;;
+                   *)
+                     os=-nextstep3
+                       ;;
+               esac
+               ;;
+       nh3000)
+               basic_machine=m68k-harris
+               os=-cxux
+               ;;
+       nh[45]000)
+               basic_machine=m88k-harris
+               os=-cxux
+               ;;
+       nindy960)
+               basic_machine=i960-intel
+               os=-nindy
+               ;;
+       mon960)
+               basic_machine=i960-intel
+               os=-mon960
+               ;;
+       nonstopux)
+               basic_machine=mips-compaq
+               os=-nonstopux
+               ;;
+       np1)
+               basic_machine=np1-gould
+               ;;
+       nsr-tandem)
+               basic_machine=nsr-tandem
+               ;;
+       op50n-* | op60c-*)
+               basic_machine=hppa1.1-oki
+               os=-proelf
+               ;;
+       or32 | or32-*)
+               basic_machine=or32-unknown
+               os=-coff
+               ;;
+       OSE68000 | ose68000)
+               basic_machine=m68000-ericsson
+               os=-ose
+               ;;
+       os68k)
+               basic_machine=m68k-none
+               os=-os68k
+               ;;
+       pa-hitachi)
+               basic_machine=hppa1.1-hitachi
+               os=-hiuxwe2
+               ;;
+       paragon)
+               basic_machine=i860-intel
+               os=-osf
+               ;;
+       pbd)
+               basic_machine=sparc-tti
+               ;;
+       pbb)
+               basic_machine=m68k-tti
+               ;;
+       pc532 | pc532-*)
+               basic_machine=ns32k-pc532
+               ;;
+       pentium | p5 | k5 | k6 | nexgen | viac3)
+               basic_machine=i586-pc
+               ;;
+       pentiumpro | p6 | 6x86 | athlon | athlon_*)
+               basic_machine=i686-pc
+               ;;
+       pentiumii | pentium2)
+               basic_machine=i686-pc
+               ;;
+       pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
+               basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'`
+               ;;
+       pentiumpro-* | p6-* | 6x86-* | athlon-*)
+               basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
+               ;;
+       pentiumii-* | pentium2-*)
+               basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
+               ;;
+       pn)
+               basic_machine=pn-gould
+               ;;
+       power)  basic_machine=power-ibm
+               ;;
+       ppc)    basic_machine=powerpc-unknown
+               ;;
+       ppc-*)  basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
+               ;;
+       ppcle | powerpclittle | ppc-le | powerpc-little)
+               basic_machine=powerpcle-unknown
+               ;;
+       ppcle-* | powerpclittle-*)
+               basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'`
+               ;;
+       ppc64)  basic_machine=powerpc64-unknown
+               ;;
+       ppc64-*) basic_machine=powerpc64-`echo $basic_machine | sed 's/^[^-]*-//'`
+               ;;
+       ppc64le | powerpc64little | ppc64-le | powerpc64-little)
+               basic_machine=powerpc64le-unknown
+               ;;
+       ppc64le-* | powerpc64little-*)
+               basic_machine=powerpc64le-`echo $basic_machine | sed 's/^[^-]*-//'`
+               ;;
+       ps2)
+               basic_machine=i386-ibm
+               ;;
+       pw32)
+               basic_machine=i586-unknown
+               os=-pw32
+               ;;
+       rom68k)
+               basic_machine=m68k-rom68k
+               os=-coff
+               ;;
+       rm[46]00)
+               basic_machine=mips-siemens
+               ;;
+       rtpc | rtpc-*)
+               basic_machine=romp-ibm
+               ;;
+       s390 | s390-*)
+               basic_machine=s390-ibm
+               ;;
+       s390x | s390x-*)
+               basic_machine=s390x-ibm
+               ;;
+       sa29200)
+               basic_machine=a29k-amd
+               os=-udi
+               ;;
+       sb1)
+               basic_machine=mipsisa64sb1-unknown
+               ;;
+       sb1el)
+               basic_machine=mipsisa64sb1el-unknown
+               ;;
+       sequent)
+               basic_machine=i386-sequent
+               ;;
+       sh)
+               basic_machine=sh-hitachi
+               os=-hms
+               ;;
+       sparclite-wrs | simso-wrs)
+               basic_machine=sparclite-wrs
+               os=-vxworks
+               ;;
+       sps7)
+               basic_machine=m68k-bull
+               os=-sysv2
+               ;;
+       spur)
+               basic_machine=spur-unknown
+               ;;
+       st2000)
+               basic_machine=m68k-tandem
+               ;;
+       stratus)
+               basic_machine=i860-stratus
+               os=-sysv4
+               ;;
+       sun2)
+               basic_machine=m68000-sun
+               ;;
+       sun2os3)
+               basic_machine=m68000-sun
+               os=-sunos3
+               ;;
+       sun2os4)
+               basic_machine=m68000-sun
+               os=-sunos4
+               ;;
+       sun3os3)
+               basic_machine=m68k-sun
+               os=-sunos3
+               ;;
+       sun3os4)
+               basic_machine=m68k-sun
+               os=-sunos4
+               ;;
+       sun4os3)
+               basic_machine=sparc-sun
+               os=-sunos3
+               ;;
+       sun4os4)
+               basic_machine=sparc-sun
+               os=-sunos4
+               ;;
+       sun4sol2)
+               basic_machine=sparc-sun
+               os=-solaris2
+               ;;
+       sun3 | sun3-*)
+               basic_machine=m68k-sun
+               ;;
+       sun4)
+               basic_machine=sparc-sun
+               ;;
+       sun386 | sun386i | roadrunner)
+               basic_machine=i386-sun
+               ;;
+       sv1)
+               basic_machine=sv1-cray
+               os=-unicos
+               ;;
+       symmetry)
+               basic_machine=i386-sequent
+               os=-dynix
+               ;;
+       t3d)
+               basic_machine=alpha-cray
+               os=-unicos
+               ;;
+       t3e)
+               basic_machine=alphaev5-cray
+               os=-unicos
+               ;;
+       t90)
+               basic_machine=t90-cray
+               os=-unicos
+               ;;
+        tic4x | c4x*)
+               basic_machine=tic4x-unknown
+               os=-coff
+               ;;
+       tic54x | c54x*)
+               basic_machine=tic54x-unknown
+               os=-coff
+               ;;
+       tx39)
+               basic_machine=mipstx39-unknown
+               ;;
+       tx39el)
+               basic_machine=mipstx39el-unknown
+               ;;
+       toad1)
+               basic_machine=pdp10-xkl
+               os=-tops20
+               ;;
+       tower | tower-32)
+               basic_machine=m68k-ncr
+               ;;
+       udi29k)
+               basic_machine=a29k-amd
+               os=-udi
+               ;;
+       ultra3)
+               basic_machine=a29k-nyu
+               os=-sym1
+               ;;
+       v810 | necv810)
+               basic_machine=v810-nec
+               os=-none
+               ;;
+       vaxv)
+               basic_machine=vax-dec
+               os=-sysv
+               ;;
+       vms)
+               basic_machine=vax-dec
+               os=-vms
+               ;;
+       vpp*|vx|vx-*)
+               basic_machine=f301-fujitsu
+               ;;
+       vxworks960)
+               basic_machine=i960-wrs
+               os=-vxworks
+               ;;
+       vxworks68)
+               basic_machine=m68k-wrs
+               os=-vxworks
+               ;;
+       vxworks29k)
+               basic_machine=a29k-wrs
+               os=-vxworks
+               ;;
+       w65*)
+               basic_machine=w65-wdc
+               os=-none
+               ;;
+       w89k-*)
+               basic_machine=hppa1.1-winbond
+               os=-proelf
+               ;;
+       windows32)
+               basic_machine=i386-pc
+               os=-windows32-msvcrt
+               ;;
+       xps | xps100)
+               basic_machine=xps100-honeywell
+               ;;
+       ymp)
+               basic_machine=ymp-cray
+               os=-unicos
+               ;;
+       z8k-*-coff)
+               basic_machine=z8k-unknown
+               os=-sim
+               ;;
+       none)
+               basic_machine=none-none
+               os=-none
+               ;;
+
+# Here we handle the default manufacturer of certain CPU types.  It is in
+# some cases the only manufacturer, in others, it is the most popular.
+       w89k)
+               basic_machine=hppa1.1-winbond
+               ;;
+       op50n)
+               basic_machine=hppa1.1-oki
+               ;;
+       op60c)
+               basic_machine=hppa1.1-oki
+               ;;
+       romp)
+               basic_machine=romp-ibm
+               ;;
+       rs6000)
+               basic_machine=rs6000-ibm
+               ;;
+       vax)
+               basic_machine=vax-dec
+               ;;
+       pdp10)
+               # there are many clones, so DEC is not a safe bet
+               basic_machine=pdp10-unknown
+               ;;
+       pdp11)
+               basic_machine=pdp11-dec
+               ;;
+       we32k)
+               basic_machine=we32k-att
+               ;;
+       sh3 | sh4 | sh3eb | sh4eb | sh[1234]le | sh3ele)
+               basic_machine=sh-unknown
+               ;;
+       sh64)
+               basic_machine=sh64-unknown
+               ;;
+       sparc | sparcv9 | sparcv9b)
+               basic_machine=sparc-sun
+               ;;
+       cydra)
+               basic_machine=cydra-cydrome
+               ;;
+       orion)
+               basic_machine=orion-highlevel
+               ;;
+       orion105)
+               basic_machine=clipper-highlevel
+               ;;
+       mac | mpw | mac-mpw)
+               basic_machine=m68k-apple
+               ;;
+       pmac | pmac-mpw)
+               basic_machine=powerpc-apple
+               ;;
+       *-unknown)
+               # Make sure to match an already-canonicalized machine name.
+               ;;
+       *)
+               echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
+               exit 1
+               ;;
+esac
+
+# Here we canonicalize certain aliases for manufacturers.
+case $basic_machine in
+       *-digital*)
+               basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'`
+               ;;
+       *-commodore*)
+               basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'`
+               ;;
+       *)
+               ;;
+esac
+
+# Decode manufacturer-specific aliases for certain operating systems.
+
+if [ x"$os" != x"" ]
+then
+case $os in
+        # First match some system type aliases
+        # that might get confused with valid system types.
+       # -solaris* is a basic system type, with this one exception.
+       -solaris1 | -solaris1.*)
+               os=`echo $os | sed -e 's|solaris1|sunos4|'`
+               ;;
+       -solaris)
+               os=-solaris2
+               ;;
+       -svr4*)
+               os=-sysv4
+               ;;
+       -unixware*)
+               os=-sysv4.2uw
+               ;;
+       -gnu/linux*)
+               os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
+               ;;
+       # First accept the basic system types.
+       # The portable systems comes first.
+       # Each alternative MUST END IN A *, to match a version number.
+       # -sysv* is not here because it comes later, after sysvr4.
+       -gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
+             | -*vms* | -sco* | -esix* | -isc* | -aix* | -sunos | -sunos[34]*\
+             | -hpux* | -unos* | -osf* | -luna* | -dgux* | -solaris* | -sym* \
+             | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
+             | -aos* \
+             | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
+             | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
+             | -hiux* | -386bsd* | -netbsd* | -openbsd* | -freebsd* | -riscix* \
+             | -lynxos* | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
+             | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
+             | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
+             | -chorusos* | -chorusrdb* \
+             | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
+             | -mingw32* | -linux-gnu* | -uxpv* | -beos* | -mpeix* | -udk* \
+             | -interix* | -uwin* | -rhapsody* | -darwin* | -opened* \
+             | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
+             | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
+             | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
+             | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* | -powermax*)
+       # Remember, each alternative MUST END IN *, to match a version number.
+               ;;
+       -qnx*)
+               case $basic_machine in
+                   x86-* | i*86-*)
+                       ;;
+                   *)
+                       os=-nto$os
+                       ;;
+               esac
+               ;;
+       -nto*)
+               os=-nto-qnx
+               ;;
+       -sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \
+             | -windows* | -osx | -abug | -netware* | -os9* | -beos* \
+             | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*)
+               ;;
+       -mac*)
+               os=`echo $os | sed -e 's|mac|macos|'`
+               ;;
+       -linux*)
+               os=`echo $os | sed -e 's|linux|linux-gnu|'`
+               ;;
+       -sunos5*)
+               os=`echo $os | sed -e 's|sunos5|solaris2|'`
+               ;;
+       -sunos6*)
+               os=`echo $os | sed -e 's|sunos6|solaris3|'`
+               ;;
+       -opened*)
+               os=-openedition
+               ;;
+       -wince*)
+               os=-wince
+               ;;
+       -osfrose*)
+               os=-osfrose
+               ;;
+       -osf*)
+               os=-osf
+               ;;
+       -utek*)
+               os=-bsd
+               ;;
+       -dynix*)
+               os=-bsd
+               ;;
+       -acis*)
+               os=-aos
+               ;;
+       -atheos*)
+               os=-atheos
+               ;;
+       -386bsd)
+               os=-bsd
+               ;;
+       -ctix* | -uts*)
+               os=-sysv
+               ;;
+       -nova*)
+               os=-rtmk-nova
+               ;;
+       -ns2 )
+               os=-nextstep2
+               ;;
+       -nsk*)
+               os=-nsk
+               ;;
+       # Preserve the version number of sinix5.
+       -sinix5.*)
+               os=`echo $os | sed -e 's|sinix|sysv|'`
+               ;;
+       -sinix*)
+               os=-sysv4
+               ;;
+       -triton*)
+               os=-sysv3
+               ;;
+       -oss*)
+               os=-sysv3
+               ;;
+       -svr4)
+               os=-sysv4
+               ;;
+       -svr3)
+               os=-sysv3
+               ;;
+       -sysvr4)
+               os=-sysv4
+               ;;
+       # This must come after -sysvr4.
+       -sysv*)
+               ;;
+       -ose*)
+               os=-ose
+               ;;
+       -es1800*)
+               os=-ose
+               ;;
+       -xenix)
+               os=-xenix
+               ;;
+       -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+               os=-mint
+               ;;
+       -none)
+               ;;
+       *)
+               # Get rid of the `-' at the beginning of $os.
+               os=`echo $os | sed 's/[^-]*-//'`
+               echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2
+               exit 1
+               ;;
+esac
+else
+
+# Here we handle the default operating systems that come with various machines.
+# The value should be what the vendor currently ships out the door with their
+# machine or put another way, the most popular os provided with the machine.
+
+# Note that if you're going to try to match "-MANUFACTURER" here (say,
+# "-sun"), then you have to tell the case statement up towards the top
+# that MANUFACTURER isn't an operating system.  Otherwise, code above
+# will signal an error saying that MANUFACTURER isn't an operating
+# system, and we'll never get to this point.
+
+case $basic_machine in
+       *-acorn)
+               os=-riscix1.2
+               ;;
+       arm*-rebel)
+               os=-linux
+               ;;
+       arm*-semi)
+               os=-aout
+               ;;
+       # This must come before the *-dec entry.
+       pdp10-*)
+               os=-tops20
+               ;;
+       pdp11-*)
+               os=-none
+               ;;
+       *-dec | vax-*)
+               os=-ultrix4.2
+               ;;
+       m68*-apollo)
+               os=-domain
+               ;;
+       i386-sun)
+               os=-sunos4.0.2
+               ;;
+       m68000-sun)
+               os=-sunos3
+               # This also exists in the configure program, but was not the
+               # default.
+               # os=-sunos4
+               ;;
+       m68*-cisco)
+               os=-aout
+               ;;
+       mips*-cisco)
+               os=-elf
+               ;;
+       mips*-*)
+               os=-elf
+               ;;
+       or32-*)
+               os=-coff
+               ;;
+       *-tti)  # must be before sparc entry or we get the wrong os.
+               os=-sysv3
+               ;;
+       sparc-* | *-sun)
+               os=-sunos4.1.1
+               ;;
+       *-be)
+               os=-beos
+               ;;
+       *-ibm)
+               os=-aix
+               ;;
+       *-wec)
+               os=-proelf
+               ;;
+       *-winbond)
+               os=-proelf
+               ;;
+       *-oki)
+               os=-proelf
+               ;;
+       *-hp)
+               os=-hpux
+               ;;
+       *-hitachi)
+               os=-hiux
+               ;;
+       i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
+               os=-sysv
+               ;;
+       *-cbm)
+               os=-amigaos
+               ;;
+       *-dg)
+               os=-dgux
+               ;;
+       *-dolphin)
+               os=-sysv3
+               ;;
+       m68k-ccur)
+               os=-rtu
+               ;;
+       m88k-omron*)
+               os=-luna
+               ;;
+       *-next )
+               os=-nextstep
+               ;;
+       *-sequent)
+               os=-ptx
+               ;;
+       *-crds)
+               os=-unos
+               ;;
+       *-ns)
+               os=-genix
+               ;;
+       i370-*)
+               os=-mvs
+               ;;
+       *-next)
+               os=-nextstep3
+               ;;
+       *-gould)
+               os=-sysv
+               ;;
+       *-highlevel)
+               os=-bsd
+               ;;
+       *-encore)
+               os=-bsd
+               ;;
+       *-sgi)
+               os=-irix
+               ;;
+       *-siemens)
+               os=-sysv4
+               ;;
+       *-masscomp)
+               os=-rtu
+               ;;
+       f30[01]-fujitsu | f700-fujitsu)
+               os=-uxpv
+               ;;
+       *-rom68k)
+               os=-coff
+               ;;
+       *-*bug)
+               os=-coff
+               ;;
+       *-apple)
+               os=-macos
+               ;;
+       *-atari*)
+               os=-mint
+               ;;
+       *)
+               os=-none
+               ;;
+esac
+fi
+
+# Here we handle the case where we know the os, and the CPU type, but not the
+# manufacturer.  We pick the logical manufacturer.
+vendor=unknown
+case $basic_machine in
+       *-unknown)
+               case $os in
+                       -riscix*)
+                               vendor=acorn
+                               ;;
+                       -sunos*)
+                               vendor=sun
+                               ;;
+                       -aix*)
+                               vendor=ibm
+                               ;;
+                       -beos*)
+                               vendor=be
+                               ;;
+                       -hpux*)
+                               vendor=hp
+                               ;;
+                       -mpeix*)
+                               vendor=hp
+                               ;;
+                       -hiux*)
+                               vendor=hitachi
+                               ;;
+                       -unos*)
+                               vendor=crds
+                               ;;
+                       -dgux*)
+                               vendor=dg
+                               ;;
+                       -luna*)
+                               vendor=omron
+                               ;;
+                       -genix*)
+                               vendor=ns
+                               ;;
+                       -mvs* | -opened*)
+                               vendor=ibm
+                               ;;
+                       -ptx*)
+                               vendor=sequent
+                               ;;
+                       -vxsim* | -vxworks* | -windiss*)
+                               vendor=wrs
+                               ;;
+                       -aux*)
+                               vendor=apple
+                               ;;
+                       -hms*)
+                               vendor=hitachi
+                               ;;
+                       -mpw* | -macos*)
+                               vendor=apple
+                               ;;
+                       -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+                               vendor=atari
+                               ;;
+                       -vos*)
+                               vendor=stratus
+                               ;;
+               esac
+               basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"`
+               ;;
+esac
+
+echo $basic_machine$os
+exit 0
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/configure b/configure
new file mode 100755 (executable)
index 0000000..9f2a746
--- /dev/null
+++ b/configure
@@ -0,0 +1,20851 @@
+#! /bin/sh
+# Guess values for system-dependent variables and create Makefiles.
+# Generated by GNU Autoconf 2.57.
+#
+# Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002
+# Free Software Foundation, Inc.
+# This configure script is free software; the Free Software Foundation
+# gives unlimited permission to copy, distribute and modify it.
+## --------------------- ##
+## M4sh Initialization.  ##
+## --------------------- ##
+
+# Be Bourne compatible
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+  emulate sh
+  NULLCMD=:
+  # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
+  set -o posix
+fi
+
+# Support unset when possible.
+if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
+  as_unset=unset
+else
+  as_unset=false
+fi
+
+
+# Work around bugs in pre-3.0 UWIN ksh.
+$as_unset ENV MAIL MAILPATH
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+for as_var in \
+  LANG LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_CTYPE LC_IDENTIFICATION \
+  LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \
+  LC_TELEPHONE LC_TIME
+do
+  if (set +x; test -n "`(eval $as_var=C; export $as_var) 2>&1`"); then
+    eval $as_var=C; export $as_var
+  else
+    $as_unset $as_var
+  fi
+done
+
+# Required to use basename.
+if expr a : '\(a\)' >/dev/null 2>&1; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename /) >/dev/null 2>&1 && test "X`basename / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+
+# Name of the executable.
+as_me=`$as_basename "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+        X"$0" : 'X\(//\)$' \| \
+        X"$0" : 'X\(/\)$' \| \
+        .     : '\(.\)' 2>/dev/null ||
+echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/; q; }
+         /^X\/\(\/\/\)$/{ s//\1/; q; }
+         /^X\/\(\/\).*/{ s//\1/; q; }
+         s/.*/./; q'`
+
+
+# PATH needs CR, and LINENO needs CR and PATH.
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  echo "#! /bin/sh" >conf$$.sh
+  echo  "exit 0"   >>conf$$.sh
+  chmod +x conf$$.sh
+  if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
+    PATH_SEPARATOR=';'
+  else
+    PATH_SEPARATOR=:
+  fi
+  rm -f conf$$.sh
+fi
+
+
+  as_lineno_1=$LINENO
+  as_lineno_2=$LINENO
+  as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
+  test "x$as_lineno_1" != "x$as_lineno_2" &&
+  test "x$as_lineno_3"  = "x$as_lineno_2"  || {
+  # Find who we are.  Look in the path if we contain no path at all
+  # relative or not.
+  case $0 in
+    *[\\/]* ) as_myself=$0 ;;
+    *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+done
+
+       ;;
+  esac
+  # We did not find ourselves, most probably we were run as `sh COMMAND'
+  # in which case we are not to be found in the path.
+  if test "x$as_myself" = x; then
+    as_myself=$0
+  fi
+  if test ! -f "$as_myself"; then
+    { echo "$as_me: error: cannot find myself; rerun with an absolute path" >&2
+   { (exit 1); exit 1; }; }
+  fi
+  case $CONFIG_SHELL in
+  '')
+    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for as_base in sh bash ksh sh5; do
+        case $as_dir in
+        /*)
+          if ("$as_dir/$as_base" -c '
+  as_lineno_1=$LINENO
+  as_lineno_2=$LINENO
+  as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
+  test "x$as_lineno_1" != "x$as_lineno_2" &&
+  test "x$as_lineno_3"  = "x$as_lineno_2" ') 2>/dev/null; then
+            $as_unset BASH_ENV || test "${BASH_ENV+set}" != set || { BASH_ENV=; export BASH_ENV; }
+            $as_unset ENV || test "${ENV+set}" != set || { ENV=; export ENV; }
+            CONFIG_SHELL=$as_dir/$as_base
+            export CONFIG_SHELL
+            exec "$CONFIG_SHELL" "$0" ${1+"$@"}
+          fi;;
+        esac
+       done
+done
+;;
+  esac
+
+  # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
+  # uniformly replaced by the line number.  The first 'sed' inserts a
+  # line-number line before each line; the second 'sed' does the real
+  # work.  The second script uses 'N' to pair each line-number line
+  # with the numbered line, and appends trailing '-' during
+  # substitution so that $LINENO is not a special case at line end.
+  # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
+  # second 'sed' script.  Blame Lee E. McMahon for sed's syntax.  :-)
+  sed '=' <$as_myself |
+    sed '
+      N
+      s,$,-,
+      : loop
+      s,^\(['$as_cr_digits']*\)\(.*\)[$]LINENO\([^'$as_cr_alnum'_]\),\1\2\1\3,
+      t loop
+      s,-$,,
+      s,^['$as_cr_digits']*\n,,
+    ' >$as_me.lineno &&
+  chmod +x $as_me.lineno ||
+    { echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2
+   { (exit 1); exit 1; }; }
+
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensible to this).
+  . ./$as_me.lineno
+  # Exit status is that of the last command.
+  exit
+}
+
+
+case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
+  *c*,-n*) ECHO_N= ECHO_C='
+' ECHO_T='     ' ;;
+  *c*,*  ) ECHO_N=-n ECHO_C= ECHO_T= ;;
+  *)       ECHO_N= ECHO_C='\c' ECHO_T= ;;
+esac
+
+if expr a : '\(a\)' >/dev/null 2>&1; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+rm -f conf$$ conf$$.exe conf$$.file
+echo >conf$$.file
+if ln -s conf$$.file conf$$ 2>/dev/null; then
+  # We could just check for DJGPP; but this test a) works b) is more generic
+  # and c) will remain valid once DJGPP supports symlinks (DJGPP 2.04).
+  if test -f conf$$.exe; then
+    # Don't use ln at all; we don't have any links
+    as_ln_s='cp -p'
+  else
+    as_ln_s='ln -s'
+  fi
+elif ln conf$$.file conf$$ 2>/dev/null; then
+  as_ln_s=ln
+else
+  as_ln_s='cp -p'
+fi
+rm -f conf$$ conf$$.exe conf$$.file
+
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p=:
+else
+  as_mkdir_p=false
+fi
+
+as_executable_p="test -f"
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="sed y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="sed y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.
+as_nl='
+'
+IFS="  $as_nl"
+
+# CDPATH.
+$as_unset CDPATH
+
+
+
+# Check that we are running under the correct shell.
+SHELL=${CONFIG_SHELL-/bin/sh}
+
+case X$ECHO in
+X*--fallback-echo)
+  # Remove one level of quotation (which was required for Make).
+  ECHO=`echo "$ECHO" | sed 's,\\\\\$\\$0,'$0','`
+  ;;
+esac
+
+echo=${ECHO-echo}
+if test "X$1" = X--no-reexec; then
+  # Discard the --no-reexec flag, and continue.
+  shift
+elif test "X$1" = X--fallback-echo; then
+  # Avoid inline document here, it may be left over
+  :
+elif test "X`($echo '\t') 2>/dev/null`" = 'X\t' ; then
+  # Yippee, $echo works!
+  :
+else
+  # Restart under the correct shell.
+  exec $SHELL "$0" --no-reexec ${1+"$@"}
+fi
+
+if test "X$1" = X--fallback-echo; then
+  # used as fallback echo
+  shift
+  cat <<EOF
+$*
+EOF
+  exit 0
+fi
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+if test "X${CDPATH+set}" = Xset; then CDPATH=:; export CDPATH; fi
+
+if test -z "$ECHO"; then
+if test "X${echo_test_string+set}" != Xset; then
+# find a string as large as possible, as long as the shell can cope with it
+  for cmd in 'sed 50q "$0"' 'sed 20q "$0"' 'sed 10q "$0"' 'sed 2q "$0"' 'echo test'; do
+    # expected sizes: less than 2Kb, 1Kb, 512 bytes, 16 bytes, ...
+    if (echo_test_string="`eval $cmd`") 2>/dev/null &&
+       echo_test_string="`eval $cmd`" &&
+       (test "X$echo_test_string" = "X$echo_test_string") 2>/dev/null
+    then
+      break
+    fi
+  done
+fi
+
+if test "X`($echo '\t') 2>/dev/null`" = 'X\t' &&
+   echo_testing_string=`($echo "$echo_test_string") 2>/dev/null` &&
+   test "X$echo_testing_string" = "X$echo_test_string"; then
+  :
+else
+  # The Solaris, AIX, and Digital Unix default echo programs unquote
+  # backslashes.  This makes it impossible to quote backslashes using
+  #   echo "$something" | sed 's/\\/\\\\/g'
+  #
+  # So, first we look for a working echo in the user's PATH.
+
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  for dir in $PATH /usr/ucb; do
+    IFS="$lt_save_ifs"
+    if (test -f $dir/echo || test -f $dir/echo$ac_exeext) &&
+       test "X`($dir/echo '\t') 2>/dev/null`" = 'X\t' &&
+       echo_testing_string=`($dir/echo "$echo_test_string") 2>/dev/null` &&
+       test "X$echo_testing_string" = "X$echo_test_string"; then
+      echo="$dir/echo"
+      break
+    fi
+  done
+  IFS="$lt_save_ifs"
+
+  if test "X$echo" = Xecho; then
+    # We didn't find a better echo, so look for alternatives.
+    if test "X`(print -r '\t') 2>/dev/null`" = 'X\t' &&
+       echo_testing_string=`(print -r "$echo_test_string") 2>/dev/null` &&
+       test "X$echo_testing_string" = "X$echo_test_string"; then
+      # This shell has a builtin print -r that does the trick.
+      echo='print -r'
+    elif (test -f /bin/ksh || test -f /bin/ksh$ac_exeext) &&
+        test "X$CONFIG_SHELL" != X/bin/ksh; then
+      # If we have ksh, try running configure again with it.
+      ORIGINAL_CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
+      export ORIGINAL_CONFIG_SHELL
+      CONFIG_SHELL=/bin/ksh
+      export CONFIG_SHELL
+      exec $CONFIG_SHELL "$0" --no-reexec ${1+"$@"}
+    else
+      # Try using printf.
+      echo='printf %s\n'
+      if test "X`($echo '\t') 2>/dev/null`" = 'X\t' &&
+        echo_testing_string=`($echo "$echo_test_string") 2>/dev/null` &&
+        test "X$echo_testing_string" = "X$echo_test_string"; then
+       # Cool, printf works
+       :
+      elif echo_testing_string=`($ORIGINAL_CONFIG_SHELL "$0" --fallback-echo '\t') 2>/dev/null` &&
+          test "X$echo_testing_string" = 'X\t' &&
+          echo_testing_string=`($ORIGINAL_CONFIG_SHELL "$0" --fallback-echo "$echo_test_string") 2>/dev/null` &&
+          test "X$echo_testing_string" = "X$echo_test_string"; then
+       CONFIG_SHELL=$ORIGINAL_CONFIG_SHELL
+       export CONFIG_SHELL
+       SHELL="$CONFIG_SHELL"
+       export SHELL
+       echo="$CONFIG_SHELL $0 --fallback-echo"
+      elif echo_testing_string=`($CONFIG_SHELL "$0" --fallback-echo '\t') 2>/dev/null` &&
+          test "X$echo_testing_string" = 'X\t' &&
+          echo_testing_string=`($CONFIG_SHELL "$0" --fallback-echo "$echo_test_string") 2>/dev/null` &&
+          test "X$echo_testing_string" = "X$echo_test_string"; then
+       echo="$CONFIG_SHELL $0 --fallback-echo"
+      else
+       # maybe with a smaller string...
+       prev=:
+
+       for cmd in 'echo test' 'sed 2q "$0"' 'sed 10q "$0"' 'sed 20q "$0"' 'sed 50q "$0"'; do
+         if (test "X$echo_test_string" = "X`eval $cmd`") 2>/dev/null
+         then
+           break
+         fi
+         prev="$cmd"
+       done
+
+       if test "$prev" != 'sed 50q "$0"'; then
+         echo_test_string=`eval $prev`
+         export echo_test_string
+         exec ${ORIGINAL_CONFIG_SHELL-${CONFIG_SHELL-/bin/sh}} "$0" ${1+"$@"}
+       else
+         # Oops.  We lost completely, so just stick with echo.
+         echo=echo
+       fi
+      fi
+    fi
+  fi
+fi
+fi
+
+# Copy echo and quote the copy suitably for passing to libtool from
+# the Makefile, instead of quoting the original, which is used later.
+ECHO=$echo
+if test "X$ECHO" = "X$CONFIG_SHELL $0 --fallback-echo"; then
+   ECHO="$CONFIG_SHELL \\\$\$0 --fallback-echo"
+fi
+
+
+
+
+tagnames=`echo "$tagnames,CXX" | sed 's/^,//'`
+
+tagnames=`echo "$tagnames,F77" | sed 's/^,//'`
+
+# Name of the host.
+# hostname on some systems (SVR3.2, Linux) returns a bogus exit status,
+# so uname gets run too.
+ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
+
+exec 6>&1
+
+#
+# Initializations.
+#
+ac_default_prefix=/usr/local
+ac_config_libobj_dir=.
+cross_compiling=no
+subdirs=
+MFLAGS=
+MAKEFLAGS=
+SHELL=${CONFIG_SHELL-/bin/sh}
+
+# Maximum number of lines to put in a shell here document.
+# This variable seems obsolete.  It should probably be removed, and
+# only ac_max_sed_lines should be used.
+: ${ac_max_here_lines=38}
+
+# Identity of this package.
+PACKAGE_NAME=
+PACKAGE_TARNAME=
+PACKAGE_VERSION=
+PACKAGE_STRING=
+PACKAGE_BUGREPORT=
+
+ac_unique_file="src/prelink.c"
+# Factoring default headers for most tests.
+ac_includes_default="\
+#include <stdio.h>
+#if HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#if HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+#if STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# if HAVE_STDLIB_H
+#  include <stdlib.h>
+# endif
+#endif
+#if HAVE_STRING_H
+# if !STDC_HEADERS && HAVE_MEMORY_H
+#  include <memory.h>
+# endif
+# include <string.h>
+#endif
+#if HAVE_STRINGS_H
+# include <strings.h>
+#endif
+#if HAVE_INTTYPES_H
+# include <inttypes.h>
+#else
+# if HAVE_STDINT_H
+#  include <stdint.h>
+# endif
+#endif
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif"
+
+ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS build build_cpu build_vendor build_os host host_cpu host_vendor host_os INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA PACKAGE VERSION ACLOCAL AUTOCONF AUTOMAKE AUTOHEADER MAKEINFO AMTAR install_sh STRIP ac_ct_STRIP INSTALL_STRIP_PROGRAM AWK SET_MAKE CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT DEPDIR am__include am__quote AMDEP_TRUE AMDEP_FALSE AMDEPBACKSLASH CCDEPMODE CXX CXXFLAGS ac_ct_CXX CXXDEPMODE CPP EGREP LN_S ECHO AR ac_ct_AR RANLIB ac_ct_RANLIB CXXCPP F77 FFLAGS ac_ct_F77 LIBTOOL GELFINCLUDE LIBGELF LIBOBJS LTLIBOBJS'
+ac_subst_files=''
+
+# Initialize some variables set by options.
+ac_init_help=
+ac_init_version=false
+# The variables have the same names as the options, with
+# dashes changed to underlines.
+cache_file=/dev/null
+exec_prefix=NONE
+no_create=
+no_recursion=
+prefix=NONE
+program_prefix=NONE
+program_suffix=NONE
+program_transform_name=s,x,x,
+silent=
+site=
+srcdir=
+verbose=
+x_includes=NONE
+x_libraries=NONE
+
+# Installation directory options.
+# These are left unexpanded so users can "make install exec_prefix=/foo"
+# and all the variables that are supposed to be based on exec_prefix
+# by default will actually change.
+# Use braces instead of parens because sh, perl, etc. also accept them.
+bindir='${exec_prefix}/bin'
+sbindir='${exec_prefix}/sbin'
+libexecdir='${exec_prefix}/libexec'
+datadir='${prefix}/share'
+sysconfdir='${prefix}/etc'
+sharedstatedir='${prefix}/com'
+localstatedir='${prefix}/var'
+libdir='${exec_prefix}/lib'
+includedir='${prefix}/include'
+oldincludedir='/usr/include'
+infodir='${prefix}/info'
+mandir='${prefix}/man'
+
+ac_prev=
+for ac_option
+do
+  # If the previous option needs an argument, assign it.
+  if test -n "$ac_prev"; then
+    eval "$ac_prev=\$ac_option"
+    ac_prev=
+    continue
+  fi
+
+  ac_optarg=`expr "x$ac_option" : 'x[^=]*=\(.*\)'`
+
+  # Accept the important Cygnus configure options, so we can diagnose typos.
+
+  case $ac_option in
+
+  -bindir | --bindir | --bindi | --bind | --bin | --bi)
+    ac_prev=bindir ;;
+  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
+    bindir=$ac_optarg ;;
+
+  -build | --build | --buil | --bui | --bu)
+    ac_prev=build_alias ;;
+  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
+    build_alias=$ac_optarg ;;
+
+  -cache-file | --cache-file | --cache-fil | --cache-fi \
+  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
+    ac_prev=cache_file ;;
+  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
+  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
+    cache_file=$ac_optarg ;;
+
+  --config-cache | -C)
+    cache_file=config.cache ;;
+
+  -datadir | --datadir | --datadi | --datad | --data | --dat | --da)
+    ac_prev=datadir ;;
+  -datadir=* | --datadir=* | --datadi=* | --datad=* | --data=* | --dat=* \
+  | --da=*)
+    datadir=$ac_optarg ;;
+
+  -disable-* | --disable-*)
+    ac_feature=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_feature" : ".*[^-_$as_cr_alnum]" >/dev/null &&
+      { echo "$as_me: error: invalid feature name: $ac_feature" >&2
+   { (exit 1); exit 1; }; }
+    ac_feature=`echo $ac_feature | sed 's/-/_/g'`
+    eval "enable_$ac_feature=no" ;;
+
+  -enable-* | --enable-*)
+    ac_feature=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_feature" : ".*[^-_$as_cr_alnum]" >/dev/null &&
+      { echo "$as_me: error: invalid feature name: $ac_feature" >&2
+   { (exit 1); exit 1; }; }
+    ac_feature=`echo $ac_feature | sed 's/-/_/g'`
+    case $ac_option in
+      *=*) ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`;;
+      *) ac_optarg=yes ;;
+    esac
+    eval "enable_$ac_feature='$ac_optarg'" ;;
+
+  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
+  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
+  | --exec | --exe | --ex)
+    ac_prev=exec_prefix ;;
+  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
+  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
+  | --exec=* | --exe=* | --ex=*)
+    exec_prefix=$ac_optarg ;;
+
+  -gas | --gas | --ga | --g)
+    # Obsolete; use --with-gas.
+    with_gas=yes ;;
+
+  -help | --help | --hel | --he | -h)
+    ac_init_help=long ;;
+  -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
+    ac_init_help=recursive ;;
+  -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
+    ac_init_help=short ;;
+
+  -host | --host | --hos | --ho)
+    ac_prev=host_alias ;;
+  -host=* | --host=* | --hos=* | --ho=*)
+    host_alias=$ac_optarg ;;
+
+  -includedir | --includedir | --includedi | --included | --include \
+  | --includ | --inclu | --incl | --inc)
+    ac_prev=includedir ;;
+  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
+  | --includ=* | --inclu=* | --incl=* | --inc=*)
+    includedir=$ac_optarg ;;
+
+  -infodir | --infodir | --infodi | --infod | --info | --inf)
+    ac_prev=infodir ;;
+  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
+    infodir=$ac_optarg ;;
+
+  -libdir | --libdir | --libdi | --libd)
+    ac_prev=libdir ;;
+  -libdir=* | --libdir=* | --libdi=* | --libd=*)
+    libdir=$ac_optarg ;;
+
+  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
+  | --libexe | --libex | --libe)
+    ac_prev=libexecdir ;;
+  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
+  | --libexe=* | --libex=* | --libe=*)
+    libexecdir=$ac_optarg ;;
+
+  -localstatedir | --localstatedir | --localstatedi | --localstated \
+  | --localstate | --localstat | --localsta | --localst \
+  | --locals | --local | --loca | --loc | --lo)
+    ac_prev=localstatedir ;;
+  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
+  | --localstate=* | --localstat=* | --localsta=* | --localst=* \
+  | --locals=* | --local=* | --loca=* | --loc=* | --lo=*)
+    localstatedir=$ac_optarg ;;
+
+  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
+    ac_prev=mandir ;;
+  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
+    mandir=$ac_optarg ;;
+
+  -nfp | --nfp | --nf)
+    # Obsolete; use --without-fp.
+    with_fp=no ;;
+
+  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+  | --no-cr | --no-c | -n)
+    no_create=yes ;;
+
+  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
+    no_recursion=yes ;;
+
+  -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
+  | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
+  | --oldin | --oldi | --old | --ol | --o)
+    ac_prev=oldincludedir ;;
+  -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
+  | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
+  | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
+    oldincludedir=$ac_optarg ;;
+
+  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
+    ac_prev=prefix ;;
+  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
+    prefix=$ac_optarg ;;
+
+  -program-prefix | --program-prefix | --program-prefi | --program-pref \
+  | --program-pre | --program-pr | --program-p)
+    ac_prev=program_prefix ;;
+  -program-prefix=* | --program-prefix=* | --program-prefi=* \
+  | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
+    program_prefix=$ac_optarg ;;
+
+  -program-suffix | --program-suffix | --program-suffi | --program-suff \
+  | --program-suf | --program-su | --program-s)
+    ac_prev=program_suffix ;;
+  -program-suffix=* | --program-suffix=* | --program-suffi=* \
+  | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
+    program_suffix=$ac_optarg ;;
+
+  -program-transform-name | --program-transform-name \
+  | --program-transform-nam | --program-transform-na \
+  | --program-transform-n | --program-transform- \
+  | --program-transform | --program-transfor \
+  | --program-transfo | --program-transf \
+  | --program-trans | --program-tran \
+  | --progr-tra | --program-tr | --program-t)
+    ac_prev=program_transform_name ;;
+  -program-transform-name=* | --program-transform-name=* \
+  | --program-transform-nam=* | --program-transform-na=* \
+  | --program-transform-n=* | --program-transform-=* \
+  | --program-transform=* | --program-transfor=* \
+  | --program-transfo=* | --program-transf=* \
+  | --program-trans=* | --program-tran=* \
+  | --progr-tra=* | --program-tr=* | --program-t=*)
+    program_transform_name=$ac_optarg ;;
+
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil)
+    silent=yes ;;
+
+  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
+    ac_prev=sbindir ;;
+  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
+  | --sbi=* | --sb=*)
+    sbindir=$ac_optarg ;;
+
+  -sharedstatedir | --sharedstatedir | --sharedstatedi \
+  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
+  | --sharedst | --shareds | --shared | --share | --shar \
+  | --sha | --sh)
+    ac_prev=sharedstatedir ;;
+  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
+  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
+  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
+  | --sha=* | --sh=*)
+    sharedstatedir=$ac_optarg ;;
+
+  -site | --site | --sit)
+    ac_prev=site ;;
+  -site=* | --site=* | --sit=*)
+    site=$ac_optarg ;;
+
+  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
+    ac_prev=srcdir ;;
+  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
+    srcdir=$ac_optarg ;;
+
+  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
+  | --syscon | --sysco | --sysc | --sys | --sy)
+    ac_prev=sysconfdir ;;
+  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
+  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
+    sysconfdir=$ac_optarg ;;
+
+  -target | --target | --targe | --targ | --tar | --ta | --t)
+    ac_prev=target_alias ;;
+  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
+    target_alias=$ac_optarg ;;
+
+  -v | -verbose | --verbose | --verbos | --verbo | --verb)
+    verbose=yes ;;
+
+  -version | --version | --versio | --versi | --vers | -V)
+    ac_init_version=: ;;
+
+  -with-* | --with-*)
+    ac_package=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_package" : ".*[^-_$as_cr_alnum]" >/dev/null &&
+      { echo "$as_me: error: invalid package name: $ac_package" >&2
+   { (exit 1); exit 1; }; }
+    ac_package=`echo $ac_package| sed 's/-/_/g'`
+    case $ac_option in
+      *=*) ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`;;
+      *) ac_optarg=yes ;;
+    esac
+    eval "with_$ac_package='$ac_optarg'" ;;
+
+  -without-* | --without-*)
+    ac_package=`expr "x$ac_option" : 'x-*without-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_package" : ".*[^-_$as_cr_alnum]" >/dev/null &&
+      { echo "$as_me: error: invalid package name: $ac_package" >&2
+   { (exit 1); exit 1; }; }
+    ac_package=`echo $ac_package | sed 's/-/_/g'`
+    eval "with_$ac_package=no" ;;
+
+  --x)
+    # Obsolete; use --with-x.
+    with_x=yes ;;
+
+  -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
+  | --x-incl | --x-inc | --x-in | --x-i)
+    ac_prev=x_includes ;;
+  -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
+  | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
+    x_includes=$ac_optarg ;;
+
+  -x-libraries | --x-libraries | --x-librarie | --x-librari \
+  | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
+    ac_prev=x_libraries ;;
+  -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
+  | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
+    x_libraries=$ac_optarg ;;
+
+  -*) { echo "$as_me: error: unrecognized option: $ac_option
+Try \`$0 --help' for more information." >&2
+   { (exit 1); exit 1; }; }
+    ;;
+
+  *=*)
+    ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_envvar" : ".*[^_$as_cr_alnum]" >/dev/null &&
+      { echo "$as_me: error: invalid variable name: $ac_envvar" >&2
+   { (exit 1); exit 1; }; }
+    ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`
+    eval "$ac_envvar='$ac_optarg'"
+    export $ac_envvar ;;
+
+  *)
+    # FIXME: should be removed in autoconf 3.0.
+    echo "$as_me: WARNING: you should use --build, --host, --target" >&2
+    expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
+      echo "$as_me: WARNING: invalid host type: $ac_option" >&2
+    : ${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}
+    ;;
+
+  esac
+done
+
+if test -n "$ac_prev"; then
+  ac_option=--`echo $ac_prev | sed 's/_/-/g'`
+  { echo "$as_me: error: missing argument to $ac_option" >&2
+   { (exit 1); exit 1; }; }
+fi
+
+# Be sure to have absolute paths.
+for ac_var in exec_prefix prefix
+do
+  eval ac_val=$`echo $ac_var`
+  case $ac_val in
+    [\\/$]* | ?:[\\/]* | NONE | '' ) ;;
+    *)  { echo "$as_me: error: expected an absolute directory name for --$ac_var: $ac_val" >&2
+   { (exit 1); exit 1; }; };;
+  esac
+done
+
+# Be sure to have absolute paths.
+for ac_var in bindir sbindir libexecdir datadir sysconfdir sharedstatedir \
+              localstatedir libdir includedir oldincludedir infodir mandir
+do
+  eval ac_val=$`echo $ac_var`
+  case $ac_val in
+    [\\/$]* | ?:[\\/]* ) ;;
+    *)  { echo "$as_me: error: expected an absolute directory name for --$ac_var: $ac_val" >&2
+   { (exit 1); exit 1; }; };;
+  esac
+done
+
+# There might be people who depend on the old broken behavior: `$host'
+# used to hold the argument of --host etc.
+# FIXME: To remove some day.
+build=$build_alias
+host=$host_alias
+target=$target_alias
+
+# FIXME: To remove some day.
+if test "x$host_alias" != x; then
+  if test "x$build_alias" = x; then
+    cross_compiling=maybe
+    echo "$as_me: WARNING: If you wanted to set the --build type, don't use --host.
+    If a cross compiler is detected then cross compile mode will be used." >&2
+  elif test "x$build_alias" != "x$host_alias"; then
+    cross_compiling=yes
+  fi
+fi
+
+ac_tool_prefix=
+test -n "$host_alias" && ac_tool_prefix=$host_alias-
+
+test "$silent" = yes && exec 6>/dev/null
+
+
+# Find the source files, if location was not specified.
+if test -z "$srcdir"; then
+  ac_srcdir_defaulted=yes
+  # Try the directory containing this script, then its parent.
+  ac_confdir=`(dirname "$0") 2>/dev/null ||
+$as_expr X"$0" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+         X"$0" : 'X\(//\)[^/]' \| \
+         X"$0" : 'X\(//\)$' \| \
+         X"$0" : 'X\(/\)' \| \
+         .     : '\(.\)' 2>/dev/null ||
+echo X"$0" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+         /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+         /^X\(\/\/\)$/{ s//\1/; q; }
+         /^X\(\/\).*/{ s//\1/; q; }
+         s/.*/./; q'`
+  srcdir=$ac_confdir
+  if test ! -r $srcdir/$ac_unique_file; then
+    srcdir=..
+  fi
+else
+  ac_srcdir_defaulted=no
+fi
+if test ! -r $srcdir/$ac_unique_file; then
+  if test "$ac_srcdir_defaulted" = yes; then
+    { echo "$as_me: error: cannot find sources ($ac_unique_file) in $ac_confdir or .." >&2
+   { (exit 1); exit 1; }; }
+  else
+    { echo "$as_me: error: cannot find sources ($ac_unique_file) in $srcdir" >&2
+   { (exit 1); exit 1; }; }
+  fi
+fi
+(cd $srcdir && test -r ./$ac_unique_file) 2>/dev/null ||
+  { echo "$as_me: error: sources are in $srcdir, but \`cd $srcdir' does not work" >&2
+   { (exit 1); exit 1; }; }
+srcdir=`echo "$srcdir" | sed 's%\([^\\/]\)[\\/]*$%\1%'`
+ac_env_build_alias_set=${build_alias+set}
+ac_env_build_alias_value=$build_alias
+ac_cv_env_build_alias_set=${build_alias+set}
+ac_cv_env_build_alias_value=$build_alias
+ac_env_host_alias_set=${host_alias+set}
+ac_env_host_alias_value=$host_alias
+ac_cv_env_host_alias_set=${host_alias+set}
+ac_cv_env_host_alias_value=$host_alias
+ac_env_target_alias_set=${target_alias+set}
+ac_env_target_alias_value=$target_alias
+ac_cv_env_target_alias_set=${target_alias+set}
+ac_cv_env_target_alias_value=$target_alias
+ac_env_CC_set=${CC+set}
+ac_env_CC_value=$CC
+ac_cv_env_CC_set=${CC+set}
+ac_cv_env_CC_value=$CC
+ac_env_CFLAGS_set=${CFLAGS+set}
+ac_env_CFLAGS_value=$CFLAGS
+ac_cv_env_CFLAGS_set=${CFLAGS+set}
+ac_cv_env_CFLAGS_value=$CFLAGS
+ac_env_LDFLAGS_set=${LDFLAGS+set}
+ac_env_LDFLAGS_value=$LDFLAGS
+ac_cv_env_LDFLAGS_set=${LDFLAGS+set}
+ac_cv_env_LDFLAGS_value=$LDFLAGS
+ac_env_CPPFLAGS_set=${CPPFLAGS+set}
+ac_env_CPPFLAGS_value=$CPPFLAGS
+ac_cv_env_CPPFLAGS_set=${CPPFLAGS+set}
+ac_cv_env_CPPFLAGS_value=$CPPFLAGS
+ac_env_CXX_set=${CXX+set}
+ac_env_CXX_value=$CXX
+ac_cv_env_CXX_set=${CXX+set}
+ac_cv_env_CXX_value=$CXX
+ac_env_CXXFLAGS_set=${CXXFLAGS+set}
+ac_env_CXXFLAGS_value=$CXXFLAGS
+ac_cv_env_CXXFLAGS_set=${CXXFLAGS+set}
+ac_cv_env_CXXFLAGS_value=$CXXFLAGS
+ac_env_CPP_set=${CPP+set}
+ac_env_CPP_value=$CPP
+ac_cv_env_CPP_set=${CPP+set}
+ac_cv_env_CPP_value=$CPP
+ac_env_CXXCPP_set=${CXXCPP+set}
+ac_env_CXXCPP_value=$CXXCPP
+ac_cv_env_CXXCPP_set=${CXXCPP+set}
+ac_cv_env_CXXCPP_value=$CXXCPP
+ac_env_F77_set=${F77+set}
+ac_env_F77_value=$F77
+ac_cv_env_F77_set=${F77+set}
+ac_cv_env_F77_value=$F77
+ac_env_FFLAGS_set=${FFLAGS+set}
+ac_env_FFLAGS_value=$FFLAGS
+ac_cv_env_FFLAGS_set=${FFLAGS+set}
+ac_cv_env_FFLAGS_value=$FFLAGS
+
+#
+# Report the --help message.
+#
+if test "$ac_init_help" = "long"; then
+  # Omit some internal or obsolete options to make the list less imposing.
+  # This message is too long to be a string in the A/UX 3.1 sh.
+  cat <<_ACEOF
+\`configure' configures this package to adapt to many kinds of systems.
+
+Usage: $0 [OPTION]... [VAR=VALUE]...
+
+To assign environment variables (e.g., CC, CFLAGS...), specify them as
+VAR=VALUE.  See below for descriptions of some of the useful variables.
+
+Defaults for the options are specified in brackets.
+
+Configuration:
+  -h, --help              display this help and exit
+      --help=short        display options specific to this package
+      --help=recursive    display the short help of all the included packages
+  -V, --version           display version information and exit
+  -q, --quiet, --silent   do not print \`checking...' messages
+      --cache-file=FILE   cache test results in FILE [disabled]
+  -C, --config-cache      alias for \`--cache-file=config.cache'
+  -n, --no-create         do not create output files
+      --srcdir=DIR        find the sources in DIR [configure dir or \`..']
+
+_ACEOF
+
+  cat <<_ACEOF
+Installation directories:
+  --prefix=PREFIX         install architecture-independent files in PREFIX
+                          [$ac_default_prefix]
+  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
+                          [PREFIX]
+
+By default, \`make install' will install all the files in
+\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
+an installation prefix other than \`$ac_default_prefix' using \`--prefix',
+for instance \`--prefix=\$HOME'.
+
+For better control, use the options below.
+
+Fine tuning of the installation directories:
+  --bindir=DIR           user executables [EPREFIX/bin]
+  --sbindir=DIR          system admin executables [EPREFIX/sbin]
+  --libexecdir=DIR       program executables [EPREFIX/libexec]
+  --datadir=DIR          read-only architecture-independent data [PREFIX/share]
+  --sysconfdir=DIR       read-only single-machine data [PREFIX/etc]
+  --sharedstatedir=DIR   modifiable architecture-independent data [PREFIX/com]
+  --localstatedir=DIR    modifiable single-machine data [PREFIX/var]
+  --libdir=DIR           object code libraries [EPREFIX/lib]
+  --includedir=DIR       C header files [PREFIX/include]
+  --oldincludedir=DIR    C header files for non-gcc [/usr/include]
+  --infodir=DIR          info documentation [PREFIX/info]
+  --mandir=DIR           man documentation [PREFIX/man]
+_ACEOF
+
+  cat <<\_ACEOF
+
+Program names:
+  --program-prefix=PREFIX            prepend PREFIX to installed program names
+  --program-suffix=SUFFIX            append SUFFIX to installed program names
+  --program-transform-name=PROGRAM   run sed PROGRAM on installed program names
+
+System types:
+  --build=BUILD     configure for building on BUILD [guessed]
+  --host=HOST       cross-compile to build programs to run on HOST [BUILD]
+_ACEOF
+fi
+
+if test -n "$ac_init_help"; then
+
+  cat <<\_ACEOF
+
+Optional Features:
+  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
+  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
+  --disable-dependency-tracking Speeds up one-time builds
+  --enable-dependency-tracking  Do not reject slow dependency extractors
+  --enable-shared[=PKGS]
+                          build shared libraries [default=yes]
+  --enable-static[=PKGS]
+                          build static libraries [default=yes]
+  --enable-fast-install[=PKGS]
+                          optimize for fast installation [default=yes]
+  --disable-libtool-lock  avoid locking (might break parallel builds)
+  --disable-64-bit        only support 32-bit ELF
+  --disable-largefile     omit support for large files
+
+Optional Packages:
+  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
+  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
+  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
+  --with-pic              try to use only PIC/non-PIC objects [default=use
+                          both]
+  --with-tags[=TAGS]
+                          include additional configurations [automatic]
+
+Some influential environment variables:
+  CC          C compiler command
+  CFLAGS      C compiler flags
+  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
+              nonstandard directory <lib dir>
+  CPPFLAGS    C/C++ preprocessor flags, e.g. -I<include dir> if you have
+              headers in a nonstandard directory <include dir>
+  CXX         C++ compiler command
+  CXXFLAGS    C++ compiler flags
+  CPP         C preprocessor
+  CXXCPP      C++ preprocessor
+  F77         Fortran 77 compiler command
+  FFLAGS      Fortran 77 compiler flags
+
+Use these variables to override the choices made by `configure' or to help
+it to find libraries and programs with nonstandard names/locations.
+
+_ACEOF
+fi
+
+if test "$ac_init_help" = "recursive"; then
+  # If there are subdirs, report their specific --help.
+  ac_popdir=`pwd`
+  for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
+    test -d $ac_dir || continue
+    ac_builddir=.
+
+if test "$ac_dir" != .; then
+  ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
+  # A "../" for each directory in $ac_dir_suffix.
+  ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,../,g'`
+else
+  ac_dir_suffix= ac_top_builddir=
+fi
+
+case $srcdir in
+  .)  # No --srcdir option.  We are building in place.
+    ac_srcdir=.
+    if test -z "$ac_top_builddir"; then
+       ac_top_srcdir=.
+    else
+       ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'`
+    fi ;;
+  [\\/]* | ?:[\\/]* )  # Absolute path.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir ;;
+  *) # Relative path.
+    ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_builddir$srcdir ;;
+esac
+# Don't blindly perform a `cd "$ac_dir"/$ac_foo && pwd` since $ac_foo can be
+# absolute.
+ac_abs_builddir=`cd "$ac_dir" && cd $ac_builddir && pwd`
+ac_abs_top_builddir=`cd "$ac_dir" && cd ${ac_top_builddir}. && pwd`
+ac_abs_srcdir=`cd "$ac_dir" && cd $ac_srcdir && pwd`
+ac_abs_top_srcdir=`cd "$ac_dir" && cd $ac_top_srcdir && pwd`
+
+    cd $ac_dir
+    # Check for guested configure; otherwise get Cygnus style configure.
+    if test -f $ac_srcdir/configure.gnu; then
+      echo
+      $SHELL $ac_srcdir/configure.gnu  --help=recursive
+    elif test -f $ac_srcdir/configure; then
+      echo
+      $SHELL $ac_srcdir/configure  --help=recursive
+    elif test -f $ac_srcdir/configure.ac ||
+           test -f $ac_srcdir/configure.in; then
+      echo
+      $ac_configure --help
+    else
+      echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
+    fi
+    cd $ac_popdir
+  done
+fi
+
+test -n "$ac_init_help" && exit 0
+if $ac_init_version; then
+  cat <<\_ACEOF
+
+Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002
+Free Software Foundation, Inc.
+This configure script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it.
+_ACEOF
+  exit 0
+fi
+exec 5>config.log
+cat >&5 <<_ACEOF
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+
+It was created by $as_me, which was
+generated by GNU Autoconf 2.57.  Invocation command line was
+
+  $ $0 $@
+
+_ACEOF
+{
+cat <<_ASUNAME
+## --------- ##
+## Platform. ##
+## --------- ##
+
+hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`
+
+/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
+hostinfo               = `(hostinfo) 2>/dev/null               || echo unknown`
+/bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
+/bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`
+
+_ASUNAME
+
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  echo "PATH: $as_dir"
+done
+
+} >&5
+
+cat >&5 <<_ACEOF
+
+
+## ----------- ##
+## Core tests. ##
+## ----------- ##
+
+_ACEOF
+
+
+# Keep a trace of the command line.
+# Strip out --no-create and --no-recursion so they do not pile up.
+# Strip out --silent because we don't want to record it for future runs.
+# Also quote any args containing shell meta-characters.
+# Make two passes to allow for proper duplicate-argument suppression.
+ac_configure_args=
+ac_configure_args0=
+ac_configure_args1=
+ac_sep=
+ac_must_keep_next=false
+for ac_pass in 1 2
+do
+  for ac_arg
+  do
+    case $ac_arg in
+    -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
+    -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+    | -silent | --silent | --silen | --sile | --sil)
+      continue ;;
+    *" "*|*"   "*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)
+      ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    esac
+    case $ac_pass in
+    1) ac_configure_args0="$ac_configure_args0 '$ac_arg'" ;;
+    2)
+      ac_configure_args1="$ac_configure_args1 '$ac_arg'"
+      if test $ac_must_keep_next = true; then
+        ac_must_keep_next=false # Got value, back to normal.
+      else
+        case $ac_arg in
+          *=* | --config-cache | -C | -disable-* | --disable-* \
+          | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
+          | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
+          | -with-* | --with-* | -without-* | --without-* | --x)
+            case "$ac_configure_args0 " in
+              "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
+            esac
+            ;;
+          -* ) ac_must_keep_next=true ;;
+        esac
+      fi
+      ac_configure_args="$ac_configure_args$ac_sep'$ac_arg'"
+      # Get rid of the leading space.
+      ac_sep=" "
+      ;;
+    esac
+  done
+done
+$as_unset ac_configure_args0 || test "${ac_configure_args0+set}" != set || { ac_configure_args0=; export ac_configure_args0; }
+$as_unset ac_configure_args1 || test "${ac_configure_args1+set}" != set || { ac_configure_args1=; export ac_configure_args1; }
+
+# When interrupted or exit'd, cleanup temporary files, and complete
+# config.log.  We remove comments because anyway the quotes in there
+# would cause problems or look ugly.
+# WARNING: Be sure not to use single quotes in there, as some shells,
+# such as our DU 5.0 friend, will then `close' the trap.
+trap 'exit_status=$?
+  # Save into config.log some information that might help in debugging.
+  {
+    echo
+
+    cat <<\_ASBOX
+## ---------------- ##
+## Cache variables. ##
+## ---------------- ##
+_ASBOX
+    echo
+    # The following way of writing the cache mishandles newlines in values,
+{
+  (set) 2>&1 |
+    case `(ac_space='"'"' '"'"'; set | grep ac_space) 2>&1` in
+    *ac_space=\ *)
+      sed -n \
+        "s/'"'"'/'"'"'\\\\'"'"''"'"'/g;
+         s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='"'"'\\2'"'"'/p"
+      ;;
+    *)
+      sed -n \
+        "s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p"
+      ;;
+    esac;
+}
+    echo
+
+    cat <<\_ASBOX
+## ----------------- ##
+## Output variables. ##
+## ----------------- ##
+_ASBOX
+    echo
+    for ac_var in $ac_subst_vars
+    do
+      eval ac_val=$`echo $ac_var`
+      echo "$ac_var='"'"'$ac_val'"'"'"
+    done | sort
+    echo
+
+    if test -n "$ac_subst_files"; then
+      cat <<\_ASBOX
+## ------------- ##
+## Output files. ##
+## ------------- ##
+_ASBOX
+      echo
+      for ac_var in $ac_subst_files
+      do
+       eval ac_val=$`echo $ac_var`
+        echo "$ac_var='"'"'$ac_val'"'"'"
+      done | sort
+      echo
+    fi
+
+    if test -s confdefs.h; then
+      cat <<\_ASBOX
+## ----------- ##
+## confdefs.h. ##
+## ----------- ##
+_ASBOX
+      echo
+      sed "/^$/d" confdefs.h | sort
+      echo
+    fi
+    test "$ac_signal" != 0 &&
+      echo "$as_me: caught signal $ac_signal"
+    echo "$as_me: exit $exit_status"
+  } >&5
+  rm -f core core.* *.core &&
+  rm -rf conftest* confdefs* conf$$* $ac_clean_files &&
+    exit $exit_status
+     ' 0
+for ac_signal in 1 2 13 15; do
+  trap 'ac_signal='$ac_signal'; { (exit 1); exit 1; }' $ac_signal
+done
+ac_signal=0
+
+# confdefs.h avoids OS command line length limits that DEFS can exceed.
+rm -rf conftest* confdefs.h
+# AIX cpp loses on an empty file, so make sure it contains at least a newline.
+echo >confdefs.h
+
+# Predefined preprocessor variables.
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_NAME "$PACKAGE_NAME"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_VERSION "$PACKAGE_VERSION"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_STRING "$PACKAGE_STRING"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
+_ACEOF
+
+
+# Let the site file select an alternate cache file if it wants to.
+# Prefer explicitly selected file to automatically selected ones.
+if test -z "$CONFIG_SITE"; then
+  if test "x$prefix" != xNONE; then
+    CONFIG_SITE="$prefix/share/config.site $prefix/etc/config.site"
+  else
+    CONFIG_SITE="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
+  fi
+fi
+for ac_site_file in $CONFIG_SITE; do
+  if test -r "$ac_site_file"; then
+    { echo "$as_me:$LINENO: loading site script $ac_site_file" >&5
+echo "$as_me: loading site script $ac_site_file" >&6;}
+    sed 's/^/| /' "$ac_site_file" >&5
+    . "$ac_site_file"
+  fi
+done
+
+if test -r "$cache_file"; then
+  # Some versions of bash will fail to source /dev/null (special
+  # files actually), so we avoid doing that.
+  if test -f "$cache_file"; then
+    { echo "$as_me:$LINENO: loading cache $cache_file" >&5
+echo "$as_me: loading cache $cache_file" >&6;}
+    case $cache_file in
+      [\\/]* | ?:[\\/]* ) . $cache_file;;
+      *)                      . ./$cache_file;;
+    esac
+  fi
+else
+  { echo "$as_me:$LINENO: creating cache $cache_file" >&5
+echo "$as_me: creating cache $cache_file" >&6;}
+  >$cache_file
+fi
+
+# Check that the precious variables saved in the cache have kept the same
+# value.
+ac_cache_corrupted=false
+for ac_var in `(set) 2>&1 |
+               sed -n 's/^ac_env_\([a-zA-Z_0-9]*\)_set=.*/\1/p'`; do
+  eval ac_old_set=\$ac_cv_env_${ac_var}_set
+  eval ac_new_set=\$ac_env_${ac_var}_set
+  eval ac_old_val="\$ac_cv_env_${ac_var}_value"
+  eval ac_new_val="\$ac_env_${ac_var}_value"
+  case $ac_old_set,$ac_new_set in
+    set,)
+      { echo "$as_me:$LINENO: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,set)
+      { echo "$as_me:$LINENO: error: \`$ac_var' was not set in the previous run" >&5
+echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,);;
+    *)
+      if test "x$ac_old_val" != "x$ac_new_val"; then
+        { echo "$as_me:$LINENO: error: \`$ac_var' has changed since the previous run:" >&5
+echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+        { echo "$as_me:$LINENO:   former value:  $ac_old_val" >&5
+echo "$as_me:   former value:  $ac_old_val" >&2;}
+        { echo "$as_me:$LINENO:   current value: $ac_new_val" >&5
+echo "$as_me:   current value: $ac_new_val" >&2;}
+        ac_cache_corrupted=:
+      fi;;
+  esac
+  # Pass precious variables to config.status.
+  if test "$ac_new_set" = set; then
+    case $ac_new_val in
+    *" "*|*"   "*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)
+      ac_arg=$ac_var=`echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *) ac_arg=$ac_var=$ac_new_val ;;
+    esac
+    case " $ac_configure_args " in
+      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
+      *) ac_configure_args="$ac_configure_args '$ac_arg'" ;;
+    esac
+  fi
+done
+if $ac_cache_corrupted; then
+  { echo "$as_me:$LINENO: error: changes in the environment can compromise the build" >&5
+echo "$as_me: error: changes in the environment can compromise the build" >&2;}
+  { { echo "$as_me:$LINENO: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&5
+echo "$as_me: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+# Add the stamp file to the list of files AC keeps track of,
+# along with our hook.
+          ac_config_headers="$ac_config_headers config.h"
+
+
+
+                       ac_aux_dir=
+for ac_dir in $srcdir $srcdir/.. $srcdir/../..; do
+  if test -f $ac_dir/install-sh; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install-sh -c"
+    break
+  elif test -f $ac_dir/install.sh; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install.sh -c"
+    break
+  elif test -f $ac_dir/shtool; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/shtool install -c"
+    break
+  fi
+done
+if test -z "$ac_aux_dir"; then
+  { { echo "$as_me:$LINENO: error: cannot find install-sh or install.sh in $srcdir $srcdir/.. $srcdir/../.." >&5
+echo "$as_me: error: cannot find install-sh or install.sh in $srcdir $srcdir/.. $srcdir/../.." >&2;}
+   { (exit 1); exit 1; }; }
+fi
+ac_config_guess="$SHELL $ac_aux_dir/config.guess"
+ac_config_sub="$SHELL $ac_aux_dir/config.sub"
+ac_configure="$SHELL $ac_aux_dir/configure" # This should be Cygnus configure.
+
+# Make sure we can run config.sub.
+$ac_config_sub sun4 >/dev/null 2>&1 ||
+  { { echo "$as_me:$LINENO: error: cannot run $ac_config_sub" >&5
+echo "$as_me: error: cannot run $ac_config_sub" >&2;}
+   { (exit 1); exit 1; }; }
+
+echo "$as_me:$LINENO: checking build system type" >&5
+echo $ECHO_N "checking build system type... $ECHO_C" >&6
+if test "${ac_cv_build+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_cv_build_alias=$build_alias
+test -z "$ac_cv_build_alias" &&
+  ac_cv_build_alias=`$ac_config_guess`
+test -z "$ac_cv_build_alias" &&
+  { { echo "$as_me:$LINENO: error: cannot guess build type; you must specify one" >&5
+echo "$as_me: error: cannot guess build type; you must specify one" >&2;}
+   { (exit 1); exit 1; }; }
+ac_cv_build=`$ac_config_sub $ac_cv_build_alias` ||
+  { { echo "$as_me:$LINENO: error: $ac_config_sub $ac_cv_build_alias failed" >&5
+echo "$as_me: error: $ac_config_sub $ac_cv_build_alias failed" >&2;}
+   { (exit 1); exit 1; }; }
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_build" >&5
+echo "${ECHO_T}$ac_cv_build" >&6
+build=$ac_cv_build
+build_cpu=`echo $ac_cv_build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
+build_vendor=`echo $ac_cv_build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
+build_os=`echo $ac_cv_build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
+
+
+echo "$as_me:$LINENO: checking host system type" >&5
+echo $ECHO_N "checking host system type... $ECHO_C" >&6
+if test "${ac_cv_host+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_cv_host_alias=$host_alias
+test -z "$ac_cv_host_alias" &&
+  ac_cv_host_alias=$ac_cv_build_alias
+ac_cv_host=`$ac_config_sub $ac_cv_host_alias` ||
+  { { echo "$as_me:$LINENO: error: $ac_config_sub $ac_cv_host_alias failed" >&5
+echo "$as_me: error: $ac_config_sub $ac_cv_host_alias failed" >&2;}
+   { (exit 1); exit 1; }; }
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_host" >&5
+echo "${ECHO_T}$ac_cv_host" >&6
+host=$ac_cv_host
+host_cpu=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
+host_vendor=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
+host_os=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
+
+
+
+am__api_version="1.6"
+# Find a good install program.  We prefer a C program (faster),
+# so one script is as good as another.  But avoid the broken or
+# incompatible versions:
+# SysV /etc/install, /usr/sbin/install
+# SunOS /usr/etc/install
+# IRIX /sbin/install
+# AIX /bin/install
+# AmigaOS /C/install, which installs bootblocks on floppy discs
+# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
+# AFS /usr/afsws/bin/install, which mishandles nonexistent args
+# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
+# ./install, which can be erroneously created by make from ./install.sh.
+echo "$as_me:$LINENO: checking for a BSD-compatible install" >&5
+echo $ECHO_N "checking for a BSD-compatible install... $ECHO_C" >&6
+if test -z "$INSTALL"; then
+if test "${ac_cv_path_install+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  # Account for people who put trailing slashes in PATH elements.
+case $as_dir/ in
+  ./ | .// | /cC/* | \
+  /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
+  /usr/ucb/* ) ;;
+  *)
+    # OSF1 and SCO ODT 3.0 have their own names for install.
+    # Don't use installbsd from OSF since it installs stuff as root
+    # by default.
+    for ac_prog in ginstall scoinst install; do
+      for ac_exec_ext in '' $ac_executable_extensions; do
+        if $as_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
+          if test $ac_prog = install &&
+            grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+            # AIX install.  It has an incompatible calling convention.
+            :
+          elif test $ac_prog = install &&
+            grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+            # program-specific install script used by HP pwplus--don't use.
+            :
+          else
+            ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
+            break 3
+          fi
+        fi
+      done
+    done
+    ;;
+esac
+done
+
+
+fi
+  if test "${ac_cv_path_install+set}" = set; then
+    INSTALL=$ac_cv_path_install
+  else
+    # As a last resort, use the slow shell script.  We don't cache a
+    # path for INSTALL within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the path is relative.
+    INSTALL=$ac_install_sh
+  fi
+fi
+echo "$as_me:$LINENO: result: $INSTALL" >&5
+echo "${ECHO_T}$INSTALL" >&6
+
+# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
+# It thinks the first close brace ends the variable substitution.
+test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
+
+test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
+
+test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
+
+echo "$as_me:$LINENO: checking whether build environment is sane" >&5
+echo $ECHO_N "checking whether build environment is sane... $ECHO_C" >&6
+# Just in case
+sleep 1
+echo timestamp > conftest.file
+# Do `set' in a subshell so we don't clobber the current shell's
+# arguments.  Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+   set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null`
+   if test "$*" = "X"; then
+      # -L didn't work.
+      set X `ls -t $srcdir/configure conftest.file`
+   fi
+   rm -f conftest.file
+   if test "$*" != "X $srcdir/configure conftest.file" \
+      && test "$*" != "X conftest.file $srcdir/configure"; then
+
+      # If neither matched, then we have a broken ls.  This can happen
+      # if, for instance, CONFIG_SHELL is bash and it inherits a
+      # broken ls alias from the environment.  This has actually
+      # happened.  Such a system could not be considered "sane".
+      { { echo "$as_me:$LINENO: error: ls -t appears to fail.  Make sure there is not a broken
+alias in your environment" >&5
+echo "$as_me: error: ls -t appears to fail.  Make sure there is not a broken
+alias in your environment" >&2;}
+   { (exit 1); exit 1; }; }
+   fi
+
+   test "$2" = conftest.file
+   )
+then
+   # Ok.
+   :
+else
+   { { echo "$as_me:$LINENO: error: newly created file is older than distributed files!
+Check your system clock" >&5
+echo "$as_me: error: newly created file is older than distributed files!
+Check your system clock" >&2;}
+   { (exit 1); exit 1; }; }
+fi
+echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+test "$program_prefix" != NONE &&
+  program_transform_name="s,^,$program_prefix,;$program_transform_name"
+# Use a double $ so make ignores it.
+test "$program_suffix" != NONE &&
+  program_transform_name="s,\$,$program_suffix,;$program_transform_name"
+# Double any \ or $.  echo might interpret backslashes.
+# By default was `s,x,x', remove it if useless.
+cat <<\_ACEOF >conftest.sed
+s/[\\$]/&&/g;s/;s,x,x,$//
+_ACEOF
+program_transform_name=`echo $program_transform_name | sed -f conftest.sed`
+rm conftest.sed
+
+
+# expand $ac_aux_dir to an absolute path
+am_aux_dir=`cd $ac_aux_dir && pwd`
+
+test x"${MISSING+set}" = xset || MISSING="\${SHELL} $am_aux_dir/missing"
+# Use eval to expand $SHELL
+if eval "$MISSING --run true"; then
+  am_missing_run="$MISSING --run "
+else
+  am_missing_run=
+  { echo "$as_me:$LINENO: WARNING: \`missing' script is too old or missing" >&5
+echo "$as_me: WARNING: \`missing' script is too old or missing" >&2;}
+fi
+
+for ac_prog in gawk mawk nawk awk
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_AWK+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$AWK"; then
+  ac_cv_prog_AWK="$AWK" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AWK="$ac_prog"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+AWK=$ac_cv_prog_AWK
+if test -n "$AWK"; then
+  echo "$as_me:$LINENO: result: $AWK" >&5
+echo "${ECHO_T}$AWK" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+  test -n "$AWK" && break
+done
+
+echo "$as_me:$LINENO: checking whether ${MAKE-make} sets \$(MAKE)" >&5
+echo $ECHO_N "checking whether ${MAKE-make} sets \$(MAKE)... $ECHO_C" >&6
+set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y,./+-,__p_,'`
+if eval "test \"\${ac_cv_prog_make_${ac_make}_set+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.make <<\_ACEOF
+all:
+       @echo 'ac_maketemp="$(MAKE)"'
+_ACEOF
+# GNU make sometimes prints "make[1]: Entering...", which would confuse us.
+eval `${MAKE-make} -f conftest.make 2>/dev/null | grep temp=`
+if test -n "$ac_maketemp"; then
+  eval ac_cv_prog_make_${ac_make}_set=yes
+else
+  eval ac_cv_prog_make_${ac_make}_set=no
+fi
+rm -f conftest.make
+fi
+if eval "test \"`echo '$ac_cv_prog_make_'${ac_make}_set`\" = yes"; then
+  echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+  SET_MAKE=
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+  SET_MAKE="MAKE=${MAKE-make}"
+fi
+
+ # test to see if srcdir already configured
+if test "`cd $srcdir && pwd`" != "`pwd`" &&
+   test -f $srcdir/config.status; then
+  { { echo "$as_me:$LINENO: error: source directory already configured; run \"make distclean\" there first" >&5
+echo "$as_me: error: source directory already configured; run \"make distclean\" there first" >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+# Define the identity of the package.
+ PACKAGE=prelink
+ VERSION=0.0
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE "$PACKAGE"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define VERSION "$VERSION"
+_ACEOF
+
+# Some tools Automake needs.
+
+ACLOCAL=${ACLOCAL-"${am_missing_run}aclocal-${am__api_version}"}
+
+
+AUTOCONF=${AUTOCONF-"${am_missing_run}autoconf"}
+
+
+AUTOMAKE=${AUTOMAKE-"${am_missing_run}automake-${am__api_version}"}
+
+
+AUTOHEADER=${AUTOHEADER-"${am_missing_run}autoheader"}
+
+
+MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
+
+
+AMTAR=${AMTAR-"${am_missing_run}tar"}
+
+install_sh=${install_sh-"$am_aux_dir/install-sh"}
+
+# Installed binaries are usually stripped using `strip' when the user
+# run `make install-strip'.  However `strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the `STRIP' environment variable to overrule this program.
+if test "$cross_compiling" != no; then
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
+set dummy ${ac_tool_prefix}strip; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_STRIP+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$STRIP"; then
+  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+STRIP=$ac_cv_prog_STRIP
+if test -n "$STRIP"; then
+  echo "$as_me:$LINENO: result: $STRIP" >&5
+echo "${ECHO_T}$STRIP" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$ac_cv_prog_STRIP"; then
+  ac_ct_STRIP=$STRIP
+  # Extract the first word of "strip", so it can be a program name with args.
+set dummy strip; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_STRIP+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$ac_ct_STRIP"; then
+  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_STRIP="strip"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+  test -z "$ac_cv_prog_ac_ct_STRIP" && ac_cv_prog_ac_ct_STRIP=":"
+fi
+fi
+ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
+if test -n "$ac_ct_STRIP"; then
+  echo "$as_me:$LINENO: result: $ac_ct_STRIP" >&5
+echo "${ECHO_T}$ac_ct_STRIP" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+  STRIP=$ac_ct_STRIP
+else
+  STRIP="$ac_cv_prog_STRIP"
+fi
+
+fi
+INSTALL_STRIP_PROGRAM="\${SHELL} \$(install_sh) -c -s"
+
+# We need awk for the "check" target.  The system "awk" is bad on
+# some platforms.
+
+
+
+
+ALL_LINGUAS=
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}gcc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}gcc"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+  ac_ct_CC=$CC
+  # Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="gcc"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+echo "${ECHO_T}$ac_ct_CC" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+  CC=$ac_ct_CC
+else
+  CC="$ac_cv_prog_CC"
+fi
+
+if test -z "$CC"; then
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}cc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}cc"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+  ac_ct_CC=$CC
+  # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="cc"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+echo "${ECHO_T}$ac_ct_CC" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+  CC=$ac_ct_CC
+else
+  CC="$ac_cv_prog_CC"
+fi
+
+fi
+if test -z "$CC"; then
+  # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  ac_prog_rejected=no
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+       ac_prog_rejected=yes
+       continue
+     fi
+    ac_cv_prog_CC="cc"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+if test $ac_prog_rejected = yes; then
+  # We found a bogon in the path, so make sure we never use it.
+  set dummy $ac_cv_prog_CC
+  shift
+  if test $# != 0; then
+    # We chose a different compiler from the bogus one.
+    # However, it has the same basename, so the bogon will be chosen
+    # first if we set CC to just the basename; use the full file name.
+    shift
+    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
+  fi
+fi
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$CC"; then
+  if test -n "$ac_tool_prefix"; then
+  for ac_prog in cl
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+    test -n "$CC" && break
+  done
+fi
+if test -z "$CC"; then
+  ac_ct_CC=$CC
+  for ac_prog in cl
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="$ac_prog"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+echo "${ECHO_T}$ac_ct_CC" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+  test -n "$ac_ct_CC" && break
+done
+
+  CC=$ac_ct_CC
+fi
+
+fi
+
+
+test -z "$CC" && { { echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH
+See \`config.log' for more details." >&5
+echo "$as_me: error: no acceptable C compiler found in \$PATH
+See \`config.log' for more details." >&2;}
+   { (exit 1); exit 1; }; }
+
+# Provide some information about the compiler.
+echo "$as_me:$LINENO:" \
+     "checking for C compiler version" >&5
+ac_compiler=`set X $ac_compile; echo $2`
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
+  (eval $ac_compiler --version </dev/null >&5) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler -v </dev/null >&5\"") >&5
+  (eval $ac_compiler -v </dev/null >&5) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler -V </dev/null >&5\"") >&5
+  (eval $ac_compiler -V </dev/null >&5) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files a.out a.exe b.out"
+# Try to create an executable without -o first, disregard a.out.
+# It will help us diagnose broken compilers, and finding out an intuition
+# of exeext.
+echo "$as_me:$LINENO: checking for C compiler default output" >&5
+echo $ECHO_N "checking for C compiler default output... $ECHO_C" >&6
+ac_link_default=`echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
+if { (eval echo "$as_me:$LINENO: \"$ac_link_default\"") >&5
+  (eval $ac_link_default) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; then
+  # Find the output, starting from the most likely.  This scheme is
+# not robust to junk in `.', hence go to wildcards (a.*) only as a last
+# resort.
+
+# Be careful to initialize this variable, since it used to be cached.
+# Otherwise an old cache value of `no' led to `EXEEXT = no' in a Makefile.
+ac_cv_exeext=
+# b.out is created by i960 compilers.
+for ac_file in a_out.exe a.exe conftest.exe a.out conftest a.* conftest.* b.out
+do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj )
+        ;;
+    conftest.$ac_ext )
+        # This is the source file.
+        ;;
+    [ab].out )
+        # We found the default executable, but exeext='' is most
+        # certainly right.
+        break;;
+    *.* )
+        ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+        # FIXME: I believe we export ac_cv_exeext for Libtool,
+        # but it would be cool to find out if it's true.  Does anybody
+        # maintain Libtool? --akim.
+        export ac_cv_exeext
+        break;;
+    * )
+        break;;
+  esac
+done
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { echo "$as_me:$LINENO: error: C compiler cannot create executables
+See \`config.log' for more details." >&5
+echo "$as_me: error: C compiler cannot create executables
+See \`config.log' for more details." >&2;}
+   { (exit 77); exit 77; }; }
+fi
+
+ac_exeext=$ac_cv_exeext
+echo "$as_me:$LINENO: result: $ac_file" >&5
+echo "${ECHO_T}$ac_file" >&6
+
+# Check the compiler produces executables we can run.  If not, either
+# the compiler is broken, or we cross compile.
+echo "$as_me:$LINENO: checking whether the C compiler works" >&5
+echo $ECHO_N "checking whether the C compiler works... $ECHO_C" >&6
+# FIXME: These cross compiler hacks should be removed for Autoconf 3.0
+# If not cross compiling, check that we can run a simple program.
+if test "$cross_compiling" != yes; then
+  if { ac_try='./$ac_file'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+    cross_compiling=no
+  else
+    if test "$cross_compiling" = maybe; then
+       cross_compiling=yes
+    else
+       { { echo "$as_me:$LINENO: error: cannot run C compiled programs.
+If you meant to cross compile, use \`--host'.
+See \`config.log' for more details." >&5
+echo "$as_me: error: cannot run C compiled programs.
+If you meant to cross compile, use \`--host'.
+See \`config.log' for more details." >&2;}
+   { (exit 1); exit 1; }; }
+    fi
+  fi
+fi
+echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+
+rm -f a.out a.exe conftest$ac_cv_exeext b.out
+ac_clean_files=$ac_clean_files_save
+# Check the compiler produces executables we can run.  If not, either
+# the compiler is broken, or we cross compile.
+echo "$as_me:$LINENO: checking whether we are cross compiling" >&5
+echo $ECHO_N "checking whether we are cross compiling... $ECHO_C" >&6
+echo "$as_me:$LINENO: result: $cross_compiling" >&5
+echo "${ECHO_T}$cross_compiling" >&6
+
+echo "$as_me:$LINENO: checking for suffix of executables" >&5
+echo $ECHO_N "checking for suffix of executables... $ECHO_C" >&6
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; then
+  # If both `conftest.exe' and `conftest' are `present' (well, observable)
+# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
+# work properly (i.e., refer to `conftest.exe'), while it won't with
+# `rm'.
+for ac_file in conftest.exe conftest conftest.*; do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj ) ;;
+    *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+          export ac_cv_exeext
+          break;;
+    * ) break;;
+  esac
+done
+else
+  { { echo "$as_me:$LINENO: error: cannot compute suffix of executables: cannot compile and link
+See \`config.log' for more details." >&5
+echo "$as_me: error: cannot compute suffix of executables: cannot compile and link
+See \`config.log' for more details." >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+rm -f conftest$ac_cv_exeext
+echo "$as_me:$LINENO: result: $ac_cv_exeext" >&5
+echo "${ECHO_T}$ac_cv_exeext" >&6
+
+rm -f conftest.$ac_ext
+EXEEXT=$ac_cv_exeext
+ac_exeext=$EXEEXT
+echo "$as_me:$LINENO: checking for suffix of object files" >&5
+echo $ECHO_N "checking for suffix of object files... $ECHO_C" >&6
+if test "${ac_cv_objext+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.o conftest.obj
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; then
+  for ac_file in `(ls conftest.o conftest.obj; ls conftest.*) 2>/dev/null`; do
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg ) ;;
+    *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
+       break;;
+  esac
+done
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { echo "$as_me:$LINENO: error: cannot compute suffix of object files: cannot compile
+See \`config.log' for more details." >&5
+echo "$as_me: error: cannot compute suffix of object files: cannot compile
+See \`config.log' for more details." >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+rm -f conftest.$ac_cv_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_objext" >&5
+echo "${ECHO_T}$ac_cv_objext" >&6
+OBJEXT=$ac_cv_objext
+ac_objext=$OBJEXT
+echo "$as_me:$LINENO: checking whether we are using the GNU C compiler" >&5
+echo $ECHO_N "checking whether we are using the GNU C compiler... $ECHO_C" >&6
+if test "${ac_cv_c_compiler_gnu+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_compiler_gnu=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_compiler_gnu=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+ac_cv_c_compiler_gnu=$ac_compiler_gnu
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_c_compiler_gnu" >&5
+echo "${ECHO_T}$ac_cv_c_compiler_gnu" >&6
+GCC=`test $ac_compiler_gnu = yes && echo yes`
+ac_test_CFLAGS=${CFLAGS+set}
+ac_save_CFLAGS=$CFLAGS
+CFLAGS="-g"
+echo "$as_me:$LINENO: checking whether $CC accepts -g" >&5
+echo $ECHO_N "checking whether $CC accepts -g... $ECHO_C" >&6
+if test "${ac_cv_prog_cc_g+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_prog_cc_g=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_prog_cc_g=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5
+echo "${ECHO_T}$ac_cv_prog_cc_g" >&6
+if test "$ac_test_CFLAGS" = set; then
+  CFLAGS=$ac_save_CFLAGS
+elif test $ac_cv_prog_cc_g = yes; then
+  if test "$GCC" = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-g"
+  fi
+else
+  if test "$GCC" = yes; then
+    CFLAGS="-O2"
+  else
+    CFLAGS=
+  fi
+fi
+echo "$as_me:$LINENO: checking for $CC option to accept ANSI C" >&5
+echo $ECHO_N "checking for $CC option to accept ANSI C... $ECHO_C" >&6
+if test "${ac_cv_prog_cc_stdc+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_cv_prog_cc_stdc=no
+ac_save_CC=$CC
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <stdarg.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+     char **p;
+     int i;
+{
+  return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+  char *s;
+  va_list v;
+  va_start (v,p);
+  s = g (p, va_arg (v,int));
+  va_end (v);
+  return s;
+}
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+int
+main ()
+{
+return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
+  ;
+  return 0;
+}
+_ACEOF
+# Don't try gcc -ansi; that turns off useful extensions and
+# breaks some systems' header files.
+# AIX                  -qlanglvl=ansi
+# Ultrix and OSF/1     -std1
+# HP-UX 10.20 and later        -Ae
+# HP-UX older versions -Aa -D_HPUX_SOURCE
+# SVR4                 -Xc -D__EXTENSIONS__
+for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+  CC="$ac_save_CC $ac_arg"
+  rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_prog_cc_stdc=$ac_arg
+break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.$ac_objext
+done
+rm -f conftest.$ac_ext conftest.$ac_objext
+CC=$ac_save_CC
+
+fi
+
+case "x$ac_cv_prog_cc_stdc" in
+  x|xno)
+    echo "$as_me:$LINENO: result: none needed" >&5
+echo "${ECHO_T}none needed" >&6 ;;
+  *)
+    echo "$as_me:$LINENO: result: $ac_cv_prog_cc_stdc" >&5
+echo "${ECHO_T}$ac_cv_prog_cc_stdc" >&6
+    CC="$CC $ac_cv_prog_cc_stdc" ;;
+esac
+
+# Some people use a C++ compiler to compile C.  Since we use `exit',
+# in C++ we need to declare it.  In case someone uses the same compiler
+# for both compiling C and C++ we need to have the C++ compiler decide
+# the declaration of exit, since it's the most demanding environment.
+cat >conftest.$ac_ext <<_ACEOF
+#ifndef __cplusplus
+  choke me
+#endif
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  for ac_declaration in \
+   ''\
+   '#include <stdlib.h>' \
+   'extern "C" void std::exit (int) throw (); using std::exit;' \
+   'extern "C" void std::exit (int); using std::exit;' \
+   'extern "C" void exit (int) throw ();' \
+   'extern "C" void exit (int);' \
+   'void exit (int);'
+do
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <stdlib.h>
+$ac_declaration
+int
+main ()
+{
+exit (42);
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  :
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+continue
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_declaration
+int
+main ()
+{
+exit (42);
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+done
+rm -f conftest*
+if test -n "$ac_declaration"; then
+  echo '#ifdef __cplusplus' >>confdefs.h
+  echo $ac_declaration      >>confdefs.h
+  echo '#endif'             >>confdefs.h
+fi
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+rm -f .deps 2>/dev/null
+mkdir .deps 2>/dev/null
+if test -d .deps; then
+  DEPDIR=.deps
+else
+  # MS-DOS does not allow filenames that begin with a dot.
+  DEPDIR=_deps
+fi
+rmdir .deps 2>/dev/null
+
+
+          ac_config_commands="$ac_config_commands depfiles"
+
+
+am_make=${MAKE-make}
+cat > confinc << 'END'
+doit:
+       @echo done
+END
+# If we don't find an include directive, just comment out the code.
+echo "$as_me:$LINENO: checking for style of include used by $am_make" >&5
+echo $ECHO_N "checking for style of include used by $am_make... $ECHO_C" >&6
+am__include="#"
+am__quote=
+_am_result=none
+# First try GNU make style include.
+echo "include confinc" > confmf
+# We grep out `Entering directory' and `Leaving directory'
+# messages which can occur if `w' ends up in MAKEFLAGS.
+# In particular we don't look at `^make:' because GNU make might
+# be invoked under some other name (usually "gmake"), in which
+# case it prints its new name instead of `make'.
+if test "`$am_make -s -f confmf 2> /dev/null | fgrep -v 'ing directory'`" = "done"; then
+   am__include=include
+   am__quote=
+   _am_result=GNU
+fi
+# Now try BSD make style include.
+if test "$am__include" = "#"; then
+   echo '.include "confinc"' > confmf
+   if test "`$am_make -s -f confmf 2> /dev/null`" = "done"; then
+      am__include=.include
+      am__quote="\""
+      _am_result=BSD
+   fi
+fi
+
+
+echo "$as_me:$LINENO: result: $_am_result" >&5
+echo "${ECHO_T}$_am_result" >&6
+rm -f confinc confmf
+
+# Check whether --enable-dependency-tracking or --disable-dependency-tracking was given.
+if test "${enable_dependency_tracking+set}" = set; then
+  enableval="$enable_dependency_tracking"
+
+fi;
+if test "x$enable_dependency_tracking" != xno; then
+  am_depcomp="$ac_aux_dir/depcomp"
+  AMDEPBACKSLASH='\'
+fi
+
+
+if test "x$enable_dependency_tracking" != xno; then
+  AMDEP_TRUE=
+  AMDEP_FALSE='#'
+else
+  AMDEP_TRUE='#'
+  AMDEP_FALSE=
+fi
+
+
+
+
+depcc="$CC"   am_compiler_list=
+
+echo "$as_me:$LINENO: checking dependency style of $depcc" >&5
+echo $ECHO_N "checking dependency style of $depcc... $ECHO_C" >&6
+if test "${am_cv_CC_dependencies_compiler_type+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+  # We make a subdir and do the tests there.  Otherwise we can end up
+  # making bogus files that we don't know about and never remove.  For
+  # instance it was reported that on HP-UX the gcc test will end up
+  # making a dummy file named `D' -- because `-MD' means `put the output
+  # in D'.
+  mkdir conftest.dir
+  # Copy depcomp to subdir because otherwise we won't find it if we're
+  # using a relative directory.
+  cp "$am_depcomp" conftest.dir
+  cd conftest.dir
+
+  am_cv_CC_dependencies_compiler_type=none
+  if test "$am_compiler_list" = ""; then
+     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
+  fi
+  for depmode in $am_compiler_list; do
+    # We need to recreate these files for each test, as the compiler may
+    # overwrite some of them when testing with obscure command lines.
+    # This happens at least with the AIX C compiler.
+    echo '#include "conftest.h"' > conftest.c
+    echo 'int i;' > conftest.h
+    echo "${am__include} ${am__quote}conftest.Po${am__quote}" > confmf
+
+    case $depmode in
+    nosideeffect)
+      # after this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested
+      if test "x$enable_dependency_tracking" = xyes; then
+       continue
+      else
+       break
+      fi
+      ;;
+    none) break ;;
+    esac
+    # We check with `-c' and `-o' for the sake of the "dashmstdout"
+    # mode.  It turns out that the SunPro C++ compiler does not properly
+    # handle `-M -o', and we need to detect this.
+    if depmode=$depmode \
+       source=conftest.c object=conftest.o \
+       depfile=conftest.Po tmpdepfile=conftest.TPo \
+       $SHELL ./depcomp $depcc -c conftest.c -o conftest.o >/dev/null 2>&1 &&
+       grep conftest.h conftest.Po > /dev/null 2>&1 &&
+       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+      am_cv_CC_dependencies_compiler_type=$depmode
+      break
+    fi
+  done
+
+  cd ..
+  rm -rf conftest.dir
+else
+  am_cv_CC_dependencies_compiler_type=none
+fi
+
+fi
+echo "$as_me:$LINENO: result: $am_cv_CC_dependencies_compiler_type" >&5
+echo "${ECHO_T}$am_cv_CC_dependencies_compiler_type" >&6
+CCDEPMODE=depmode=$am_cv_CC_dependencies_compiler_type
+
+
+ac_ext=cc
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+  for ac_prog in $CCC g++ c++ gpp aCC CC cxx cc++ cl FCC KCC RCC xlC_r xlC
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CXX+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$CXX"; then
+  ac_cv_prog_CXX="$CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+CXX=$ac_cv_prog_CXX
+if test -n "$CXX"; then
+  echo "$as_me:$LINENO: result: $CXX" >&5
+echo "${ECHO_T}$CXX" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+    test -n "$CXX" && break
+  done
+fi
+if test -z "$CXX"; then
+  ac_ct_CXX=$CXX
+  for ac_prog in $CCC g++ c++ gpp aCC CC cxx cc++ cl FCC KCC RCC xlC_r xlC
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_CXX+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$ac_ct_CXX"; then
+  ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CXX="$ac_prog"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
+if test -n "$ac_ct_CXX"; then
+  echo "$as_me:$LINENO: result: $ac_ct_CXX" >&5
+echo "${ECHO_T}$ac_ct_CXX" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+  test -n "$ac_ct_CXX" && break
+done
+test -n "$ac_ct_CXX" || ac_ct_CXX="g++"
+
+  CXX=$ac_ct_CXX
+fi
+
+
+# Provide some information about the compiler.
+echo "$as_me:$LINENO:" \
+     "checking for C++ compiler version" >&5
+ac_compiler=`set X $ac_compile; echo $2`
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
+  (eval $ac_compiler --version </dev/null >&5) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler -v </dev/null >&5\"") >&5
+  (eval $ac_compiler -v </dev/null >&5) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler -V </dev/null >&5\"") >&5
+  (eval $ac_compiler -V </dev/null >&5) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+
+echo "$as_me:$LINENO: checking whether we are using the GNU C++ compiler" >&5
+echo $ECHO_N "checking whether we are using the GNU C++ compiler... $ECHO_C" >&6
+if test "${ac_cv_cxx_compiler_gnu+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_compiler_gnu=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_compiler_gnu=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+ac_cv_cxx_compiler_gnu=$ac_compiler_gnu
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_cxx_compiler_gnu" >&5
+echo "${ECHO_T}$ac_cv_cxx_compiler_gnu" >&6
+GXX=`test $ac_compiler_gnu = yes && echo yes`
+ac_test_CXXFLAGS=${CXXFLAGS+set}
+ac_save_CXXFLAGS=$CXXFLAGS
+CXXFLAGS="-g"
+echo "$as_me:$LINENO: checking whether $CXX accepts -g" >&5
+echo $ECHO_N "checking whether $CXX accepts -g... $ECHO_C" >&6
+if test "${ac_cv_prog_cxx_g+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_prog_cxx_g=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_prog_cxx_g=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_prog_cxx_g" >&5
+echo "${ECHO_T}$ac_cv_prog_cxx_g" >&6
+if test "$ac_test_CXXFLAGS" = set; then
+  CXXFLAGS=$ac_save_CXXFLAGS
+elif test $ac_cv_prog_cxx_g = yes; then
+  if test "$GXX" = yes; then
+    CXXFLAGS="-g -O2"
+  else
+    CXXFLAGS="-g"
+  fi
+else
+  if test "$GXX" = yes; then
+    CXXFLAGS="-O2"
+  else
+    CXXFLAGS=
+  fi
+fi
+for ac_declaration in \
+   ''\
+   '#include <stdlib.h>' \
+   'extern "C" void std::exit (int) throw (); using std::exit;' \
+   'extern "C" void std::exit (int); using std::exit;' \
+   'extern "C" void exit (int) throw ();' \
+   'extern "C" void exit (int);' \
+   'void exit (int);'
+do
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <stdlib.h>
+$ac_declaration
+int
+main ()
+{
+exit (42);
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  :
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+continue
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_declaration
+int
+main ()
+{
+exit (42);
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+done
+rm -f conftest*
+if test -n "$ac_declaration"; then
+  echo '#ifdef __cplusplus' >>confdefs.h
+  echo $ac_declaration      >>confdefs.h
+  echo '#endif'             >>confdefs.h
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+depcc="$CXX"  am_compiler_list=
+
+echo "$as_me:$LINENO: checking dependency style of $depcc" >&5
+echo $ECHO_N "checking dependency style of $depcc... $ECHO_C" >&6
+if test "${am_cv_CXX_dependencies_compiler_type+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+  # We make a subdir and do the tests there.  Otherwise we can end up
+  # making bogus files that we don't know about and never remove.  For
+  # instance it was reported that on HP-UX the gcc test will end up
+  # making a dummy file named `D' -- because `-MD' means `put the output
+  # in D'.
+  mkdir conftest.dir
+  # Copy depcomp to subdir because otherwise we won't find it if we're
+  # using a relative directory.
+  cp "$am_depcomp" conftest.dir
+  cd conftest.dir
+
+  am_cv_CXX_dependencies_compiler_type=none
+  if test "$am_compiler_list" = ""; then
+     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
+  fi
+  for depmode in $am_compiler_list; do
+    # We need to recreate these files for each test, as the compiler may
+    # overwrite some of them when testing with obscure command lines.
+    # This happens at least with the AIX C compiler.
+    echo '#include "conftest.h"' > conftest.c
+    echo 'int i;' > conftest.h
+    echo "${am__include} ${am__quote}conftest.Po${am__quote}" > confmf
+
+    case $depmode in
+    nosideeffect)
+      # after this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested
+      if test "x$enable_dependency_tracking" = xyes; then
+       continue
+      else
+       break
+      fi
+      ;;
+    none) break ;;
+    esac
+    # We check with `-c' and `-o' for the sake of the "dashmstdout"
+    # mode.  It turns out that the SunPro C++ compiler does not properly
+    # handle `-M -o', and we need to detect this.
+    if depmode=$depmode \
+       source=conftest.c object=conftest.o \
+       depfile=conftest.Po tmpdepfile=conftest.TPo \
+       $SHELL ./depcomp $depcc -c conftest.c -o conftest.o >/dev/null 2>&1 &&
+       grep conftest.h conftest.Po > /dev/null 2>&1 &&
+       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+      am_cv_CXX_dependencies_compiler_type=$depmode
+      break
+    fi
+  done
+
+  cd ..
+  rm -rf conftest.dir
+else
+  am_cv_CXX_dependencies_compiler_type=none
+fi
+
+fi
+echo "$as_me:$LINENO: result: $am_cv_CXX_dependencies_compiler_type" >&5
+echo "${ECHO_T}$am_cv_CXX_dependencies_compiler_type" >&6
+CXXDEPMODE=depmode=$am_cv_CXX_dependencies_compiler_type
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+echo "$as_me:$LINENO: checking how to run the C preprocessor" >&5
+echo $ECHO_N "checking how to run the C preprocessor... $ECHO_C" >&6
+# On Suns, sometimes $CPP names a directory.
+if test -n "$CPP" && test -d "$CPP"; then
+  CPP=
+fi
+if test -z "$CPP"; then
+  if test "${ac_cv_prog_CPP+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+      # Double quotes because CPP needs to be expanded
+    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
+    do
+      ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+                     Syntax error
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_c_preproc_warn_flag
+  else
+    ac_cpp_err=
+  fi
+else
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  :
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether non-existent headers
+  # can be detected and how.
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_c_preproc_warn_flag
+  else
+    ac_cpp_err=
+  fi
+else
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  # Broken: success on invalid input.
+continue
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then
+  break
+fi
+
+    done
+    ac_cv_prog_CPP=$CPP
+
+fi
+  CPP=$ac_cv_prog_CPP
+else
+  ac_cv_prog_CPP=$CPP
+fi
+echo "$as_me:$LINENO: result: $CPP" >&5
+echo "${ECHO_T}$CPP" >&6
+ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+                     Syntax error
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_c_preproc_warn_flag
+  else
+    ac_cpp_err=
+  fi
+else
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  :
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether non-existent headers
+  # can be detected and how.
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_c_preproc_warn_flag
+  else
+    ac_cpp_err=
+  fi
+else
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  # Broken: success on invalid input.
+continue
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then
+  :
+else
+  { { echo "$as_me:$LINENO: error: C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details." >&5
+echo "$as_me: error: C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details." >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+echo "$as_me:$LINENO: checking for egrep" >&5
+echo $ECHO_N "checking for egrep... $ECHO_C" >&6
+if test "${ac_cv_prog_egrep+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if echo a | (grep -E '(a|b)') >/dev/null 2>&1
+    then ac_cv_prog_egrep='grep -E'
+    else ac_cv_prog_egrep='egrep'
+    fi
+fi
+echo "$as_me:$LINENO: result: $ac_cv_prog_egrep" >&5
+echo "${ECHO_T}$ac_cv_prog_egrep" >&6
+ EGREP=$ac_cv_prog_egrep
+
+
+if test $ac_cv_c_compiler_gnu = yes; then
+    echo "$as_me:$LINENO: checking whether $CC needs -traditional" >&5
+echo $ECHO_N "checking whether $CC needs -traditional... $ECHO_C" >&6
+if test "${ac_cv_prog_gcc_traditional+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+    ac_pattern="Autoconf.*'x'"
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <sgtty.h>
+Autoconf TIOCGETP
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "$ac_pattern" >/dev/null 2>&1; then
+  ac_cv_prog_gcc_traditional=yes
+else
+  ac_cv_prog_gcc_traditional=no
+fi
+rm -f conftest*
+
+
+  if test $ac_cv_prog_gcc_traditional = no; then
+    cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <termio.h>
+Autoconf TCGETA
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "$ac_pattern" >/dev/null 2>&1; then
+  ac_cv_prog_gcc_traditional=yes
+fi
+rm -f conftest*
+
+  fi
+fi
+echo "$as_me:$LINENO: result: $ac_cv_prog_gcc_traditional" >&5
+echo "${ECHO_T}$ac_cv_prog_gcc_traditional" >&6
+  if test $ac_cv_prog_gcc_traditional = yes; then
+    CC="$CC -traditional"
+  fi
+fi
+
+# Check whether --enable-shared or --disable-shared was given.
+if test "${enable_shared+set}" = set; then
+  enableval="$enable_shared"
+  p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_shared=yes ;;
+    no) enable_shared=no ;;
+    *)
+      enable_shared=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for pkg in $enableval; do
+       IFS="$lt_save_ifs"
+       if test "X$pkg" = "X$p"; then
+         enable_shared=yes
+       fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac
+else
+  enable_shared=yes
+fi;
+
+# Check whether --enable-static or --disable-static was given.
+if test "${enable_static+set}" = set; then
+  enableval="$enable_static"
+  p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_static=yes ;;
+    no) enable_static=no ;;
+    *)
+     enable_static=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for pkg in $enableval; do
+       IFS="$lt_save_ifs"
+       if test "X$pkg" = "X$p"; then
+         enable_static=yes
+       fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac
+else
+  enable_static=yes
+fi;
+
+# Check whether --enable-fast-install or --disable-fast-install was given.
+if test "${enable_fast_install+set}" = set; then
+  enableval="$enable_fast_install"
+  p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_fast_install=yes ;;
+    no) enable_fast_install=no ;;
+    *)
+      enable_fast_install=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for pkg in $enableval; do
+       IFS="$lt_save_ifs"
+       if test "X$pkg" = "X$p"; then
+         enable_fast_install=yes
+       fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac
+else
+  enable_fast_install=yes
+fi;
+
+echo "$as_me:$LINENO: checking for a sed that does not truncate output" >&5
+echo $ECHO_N "checking for a sed that does not truncate output... $ECHO_C" >&6
+if test "${lt_cv_path_SED+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  # Loop through the user's path and test for sed and gsed.
+# Then use that list of sed's as ones to test for truncation.
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for lt_ac_prog in sed gsed; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      if $as_executable_p "$as_dir/$lt_ac_prog$ac_exec_ext"; then
+        lt_ac_sed_list="$lt_ac_sed_list $as_dir/$lt_ac_prog$ac_exec_ext"
+      fi
+    done
+  done
+done
+lt_ac_max=0
+lt_ac_count=0
+# Add /usr/xpg4/bin/sed as it is typically found on Solaris
+# along with /bin/sed that truncates output.
+for lt_ac_sed in $lt_ac_sed_list /usr/xpg4/bin/sed; do
+  test ! -f $lt_ac_sed && break
+  cat /dev/null > conftest.in
+  lt_ac_count=0
+  echo $ECHO_N "0123456789$ECHO_C" >conftest.in
+  # Check for GNU sed and select it if it is found.
+  if "$lt_ac_sed" --version 2>&1 < /dev/null | grep 'GNU' > /dev/null; then
+    lt_cv_path_SED=$lt_ac_sed
+    break
+  fi
+  while true; do
+    cat conftest.in conftest.in >conftest.tmp
+    mv conftest.tmp conftest.in
+    cp conftest.in conftest.nl
+    echo >>conftest.nl
+    $lt_ac_sed -e 's/a$//' < conftest.nl >conftest.out || break
+    cmp -s conftest.out conftest.nl || break
+    # 10000 chars as input seems more than enough
+    test $lt_ac_count -gt 10 && break
+    lt_ac_count=`expr $lt_ac_count + 1`
+    if test $lt_ac_count -gt $lt_ac_max; then
+      lt_ac_max=$lt_ac_count
+      lt_cv_path_SED=$lt_ac_sed
+    fi
+  done
+done
+SED=$lt_cv_path_SED
+
+fi
+
+echo "$as_me:$LINENO: result: $SED" >&5
+echo "${ECHO_T}$SED" >&6
+
+
+# Check whether --with-gnu-ld or --without-gnu-ld was given.
+if test "${with_gnu_ld+set}" = set; then
+  withval="$with_gnu_ld"
+  test "$withval" = no || with_gnu_ld=yes
+else
+  with_gnu_ld=no
+fi;
+ac_prog=ld
+if test "$GCC" = yes; then
+  # Check if gcc -print-prog-name=ld gives a path.
+  echo "$as_me:$LINENO: checking for ld used by $CC" >&5
+echo $ECHO_N "checking for ld used by $CC... $ECHO_C" >&6
+  case $host in
+  *-*-mingw*)
+    # gcc leaves a trailing carriage return which upsets mingw
+    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+  *)
+    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+  esac
+  case $ac_prog in
+    # Accept absolute paths.
+    [\\/]* | ?:[\\/]*)
+      re_direlt='/[^/][^/]*/\.\./'
+      # Canonicalize the path of ld
+      ac_prog=`echo $ac_prog| $SED 's%\\\\%/%g'`
+      while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
+       ac_prog=`echo $ac_prog| $SED "s%$re_direlt%/%"`
+      done
+      test -z "$LD" && LD="$ac_prog"
+      ;;
+  "")
+    # If it fails, then pretend we aren't using GCC.
+    ac_prog=ld
+    ;;
+  *)
+    # If it is relative, then search for the first ld in PATH.
+    with_gnu_ld=unknown
+    ;;
+  esac
+elif test "$with_gnu_ld" = yes; then
+  echo "$as_me:$LINENO: checking for GNU ld" >&5
+echo $ECHO_N "checking for GNU ld... $ECHO_C" >&6
+else
+  echo "$as_me:$LINENO: checking for non-GNU ld" >&5
+echo $ECHO_N "checking for non-GNU ld... $ECHO_C" >&6
+fi
+if test "${lt_cv_path_LD+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -z "$LD"; then
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  for ac_dir in $PATH; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+      lt_cv_path_LD="$ac_dir/$ac_prog"
+      # Check to see if the program is GNU ld.  I'd rather use --version,
+      # but apparently some GNU ld's only accept -v.
+      # Break only if it was the GNU/non-GNU ld that we prefer.
+      case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
+      *GNU* | *'with BFD'*)
+       test "$with_gnu_ld" != no && break
+       ;;
+      *)
+       test "$with_gnu_ld" != yes && break
+       ;;
+      esac
+    fi
+  done
+  IFS="$lt_save_ifs"
+else
+  lt_cv_path_LD="$LD" # Let the user override the test with a path.
+fi
+fi
+
+LD="$lt_cv_path_LD"
+if test -n "$LD"; then
+  echo "$as_me:$LINENO: result: $LD" >&5
+echo "${ECHO_T}$LD" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+test -z "$LD" && { { echo "$as_me:$LINENO: error: no acceptable ld found in \$PATH" >&5
+echo "$as_me: error: no acceptable ld found in \$PATH" >&2;}
+   { (exit 1); exit 1; }; }
+echo "$as_me:$LINENO: checking if the linker ($LD) is GNU ld" >&5
+echo $ECHO_N "checking if the linker ($LD) is GNU ld... $ECHO_C" >&6
+if test "${lt_cv_prog_gnu_ld+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  # I'd rather use --version here, but apparently some GNU ld's only accept -v.
+case `$LD -v 2>&1 </dev/null` in
+*GNU* | *'with BFD'*)
+  lt_cv_prog_gnu_ld=yes
+  ;;
+*)
+  lt_cv_prog_gnu_ld=no
+  ;;
+esac
+fi
+echo "$as_me:$LINENO: result: $lt_cv_prog_gnu_ld" >&5
+echo "${ECHO_T}$lt_cv_prog_gnu_ld" >&6
+with_gnu_ld=$lt_cv_prog_gnu_ld
+
+
+echo "$as_me:$LINENO: checking for $LD option to reload object files" >&5
+echo $ECHO_N "checking for $LD option to reload object files... $ECHO_C" >&6
+if test "${lt_cv_ld_reload_flag+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  lt_cv_ld_reload_flag='-r'
+fi
+echo "$as_me:$LINENO: result: $lt_cv_ld_reload_flag" >&5
+echo "${ECHO_T}$lt_cv_ld_reload_flag" >&6
+reload_flag=$lt_cv_ld_reload_flag
+case $reload_flag in
+"" | " "*) ;;
+*) reload_flag=" $reload_flag" ;;
+esac
+reload_cmds='$LD$reload_flag -o $output$reload_objs'
+
+echo "$as_me:$LINENO: checking for BSD-compatible nm" >&5
+echo $ECHO_N "checking for BSD-compatible nm... $ECHO_C" >&6
+if test "${lt_cv_path_NM+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$NM"; then
+  # Let the user override the test.
+  lt_cv_path_NM="$NM"
+else
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  for ac_dir in $PATH /usr/ccs/bin /usr/ucb /bin; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    tmp_nm="$ac_dir/${ac_tool_prefix}nm"
+    if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext" ; then
+      # Check to see if the nm accepts a BSD-compat flag.
+      # Adding the `sed 1q' prevents false positives on HP-UX, which says:
+      #   nm: unknown option "B" ignored
+      # Tru64's nm complains that /dev/null is an invalid object file
+      case `"$tmp_nm" -B /dev/null 2>&1 | sed '1q'` in
+      */dev/null* | *'Invalid file or object type'*)
+       lt_cv_path_NM="$tmp_nm -B"
+       break
+        ;;
+      *)
+       case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in
+       */dev/null*)
+         lt_cv_path_NM="$tmp_nm -p"
+         break
+         ;;
+       *)
+         lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
+         continue # so that we can try to find one that supports BSD flags
+         ;;
+       esac
+      esac
+    fi
+  done
+  IFS="$lt_save_ifs"
+  test -z "$lt_cv_path_NM" && lt_cv_path_NM=nm
+fi
+fi
+echo "$as_me:$LINENO: result: $lt_cv_path_NM" >&5
+echo "${ECHO_T}$lt_cv_path_NM" >&6
+NM="$lt_cv_path_NM"
+
+echo "$as_me:$LINENO: checking whether ln -s works" >&5
+echo $ECHO_N "checking whether ln -s works... $ECHO_C" >&6
+LN_S=$as_ln_s
+if test "$LN_S" = "ln -s"; then
+  echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+  echo "$as_me:$LINENO: result: no, using $LN_S" >&5
+echo "${ECHO_T}no, using $LN_S" >&6
+fi
+
+echo "$as_me:$LINENO: checking how to recognise dependent libraries" >&5
+echo $ECHO_N "checking how to recognise dependent libraries... $ECHO_C" >&6
+if test "${lt_cv_deplibs_check_method+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  lt_cv_file_magic_cmd='$MAGIC_CMD'
+lt_cv_file_magic_test_file=
+lt_cv_deplibs_check_method='unknown'
+# Need to set the preceding variable on all platforms that support
+# interlibrary dependencies.
+# 'none' -- dependencies not supported.
+# `unknown' -- same as none, but documents that we really don't know.
+# 'pass_all' -- all dependencies passed with no checks.
+# 'test_compile' -- check by making test program.
+# 'file_magic [[regex]]' -- check by looking for files in library path
+# which responds to the $file_magic_cmd with a given extended regex.
+# If you have `file' or equivalent on your system and you're not sure
+# whether `pass_all' will *always* work, you probably want this one.
+
+case $host_os in
+aix4* | aix5*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+beos*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+bsdi4*)
+  lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)'
+  lt_cv_file_magic_cmd='/usr/bin/file -L'
+  lt_cv_file_magic_test_file=/shlib/libc.so
+  ;;
+
+cygwin* | mingw* | pw32*)
+  # win32_libid is a shell function defined in ltmain.sh
+  lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+  lt_cv_file_magic_cmd='win32_libid'
+  ;;
+
+darwin* | rhapsody*)
+  # this will be overwritten by pass_all, but leave it in just in case
+  lt_cv_deplibs_check_method='file_magic Mach-O dynamically linked shared library'
+  lt_cv_file_magic_cmd='/usr/bin/file -L'
+  case "$host_os" in
+  rhapsody* | darwin1.[012])
+    lt_cv_file_magic_test_file=`/System/Library/Frameworks/System.framework/System`
+    ;;
+  *) # Darwin 1.3 on
+    lt_cv_file_magic_test_file='/usr/lib/libSystem.dylib'
+    ;;
+  esac
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+freebsd*)
+  if echo __ELF__ | $CC -E - | grep __ELF__ > /dev/null; then
+    case $host_cpu in
+    i*86 )
+      # Not sure whether the presence of OpenBSD here was a mistake.
+      # Let's accept both of them until this is cleared up.
+      lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD)/i[3-9]86 (compact )?demand paged shared library'
+      lt_cv_file_magic_cmd=/usr/bin/file
+      lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
+      ;;
+    esac
+  else
+    lt_cv_deplibs_check_method=pass_all
+  fi
+  ;;
+
+gnu*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+hpux10.20* | hpux11*)
+  lt_cv_file_magic_cmd=/usr/bin/file
+  case "$host_cpu" in
+  ia64*)
+    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64'
+    lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
+    ;;
+  hppa*64*)
+    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - PA-RISC [0-9].[0-9]'
+    lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl
+    ;;
+  *)
+    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9].[0-9]) shared library'
+    lt_cv_file_magic_test_file=/usr/lib/libc.sl
+    ;;
+  esac
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $host_os in
+  irix5* | nonstopux*)
+    # this will be overridden with pass_all, but let us keep it just in case
+    lt_cv_deplibs_check_method="file_magic ELF 32-bit MSB dynamic lib MIPS - version 1"
+    ;;
+  *)
+    case $LD in
+    *-32|*"-32 ") libmagic=32-bit;;
+    *-n32|*"-n32 ") libmagic=N32;;
+    *-64|*"-64 ") libmagic=64-bit;;
+    *) libmagic=never-match;;
+    esac
+    # this will be overridden with pass_all, but let us keep it just in case
+    lt_cv_deplibs_check_method="file_magic ELF ${libmagic} MSB mips-[1234] dynamic lib MIPS - version 1"
+    ;;
+  esac
+  lt_cv_file_magic_test_file=`echo /lib${libsuff}/libc.so*`
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+# This must be Linux ELF.
+linux*)
+  case $host_cpu in
+  alpha* | hppa* | i*86 | ia64* | m68* | mips | mipsel | powerpc* | sparc* | s390* | sh* | x86_64*)
+    lt_cv_deplibs_check_method=pass_all ;;
+  *)
+    # glibc up to 2.1.1 does not perform some relocations on ARM
+    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )' ;;
+  esac
+  lt_cv_file_magic_test_file=`echo /lib/libc.so* /lib/libc-*.so`
+  ;;
+
+netbsd*)
+  if echo __ELF__ | $CC -E - | grep __ELF__ > /dev/null; then
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
+  else
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|_pic\.a)$'
+  fi
+  ;;
+
+newos6*)
+  lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)'
+  lt_cv_file_magic_cmd=/usr/bin/file
+  lt_cv_file_magic_test_file=/usr/lib/libnls.so
+  ;;
+
+nto-qnx)
+  lt_cv_deplibs_check_method=unknown
+  ;;
+
+openbsd*)
+  lt_cv_file_magic_cmd=/usr/bin/file
+  lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
+  if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB shared object'
+  else
+    lt_cv_deplibs_check_method='file_magic OpenBSD.* shared library'
+  fi
+  ;;
+
+osf3* | osf4* | osf5*)
+  # this will be overridden with pass_all, but let us keep it just in case
+  lt_cv_deplibs_check_method='file_magic COFF format alpha shared library'
+  lt_cv_file_magic_test_file=/shlib/libc.so
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+sco3.2v5*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+solaris*)
+  lt_cv_deplibs_check_method=pass_all
+  lt_cv_file_magic_test_file=/lib/libc.so
+  ;;
+
+sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+  case $host_vendor in
+  motorola)
+    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]'
+    lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
+    ;;
+  ncr)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  sequent)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )'
+    ;;
+  sni)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method="file_magic ELF [0-9][0-9]*-bit [LM]SB dynamic lib"
+    lt_cv_file_magic_test_file=/lib/libc.so
+    ;;
+  siemens)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  esac
+  ;;
+
+sysv5OpenUNIX8* | sysv5UnixWare7* | sysv5uw[78]* | unixware7* | sysv4*uw2*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+esac
+
+fi
+echo "$as_me:$LINENO: result: $lt_cv_deplibs_check_method" >&5
+echo "${ECHO_T}$lt_cv_deplibs_check_method" >&6
+file_magic_cmd=$lt_cv_file_magic_cmd
+deplibs_check_method=$lt_cv_deplibs_check_method
+test -z "$deplibs_check_method" && deplibs_check_method=unknown
+
+
+
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+# Check whether --enable-libtool-lock or --disable-libtool-lock was given.
+if test "${enable_libtool_lock+set}" = set; then
+  enableval="$enable_libtool_lock"
+
+fi;
+test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes
+
+# Some flags need to be propagated to the compiler or linker for good
+# libtool support.
+case $host in
+ia64-*-hpux*)
+  # Find out which ABI we are using.
+  echo 'int i;' > conftest.$ac_ext
+  if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; then
+    case `/usr/bin/file conftest.$ac_objext` in
+    *ELF-32*)
+      HPUX_IA64_MODE="32"
+      ;;
+    *ELF-64*)
+      HPUX_IA64_MODE="64"
+      ;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+*-*-irix6*)
+  # Find out which ABI we are using.
+  echo '#line 4167 "configure"' > conftest.$ac_ext
+  if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; then
+   if test "$lt_cv_prog_gnu_ld" = yes; then
+    case `/usr/bin/file conftest.$ac_objext` in
+    *32-bit*)
+      LD="${LD-ld} -melf32bsmip"
+      ;;
+    *N32*)
+      LD="${LD-ld} -melf32bmipn32"
+      ;;
+    *64-bit*)
+      LD="${LD-ld} -melf64bmip"
+      ;;
+    esac
+   else
+    case `/usr/bin/file conftest.$ac_objext` in
+    *32-bit*)
+      LD="${LD-ld} -32"
+      ;;
+    *N32*)
+      LD="${LD-ld} -n32"
+      ;;
+    *64-bit*)
+      LD="${LD-ld} -64"
+      ;;
+    esac
+   fi
+  fi
+  rm -rf conftest*
+  ;;
+
+x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*|s390*-*linux*|sparc*-*linux*)
+  # Find out which ABI we are using.
+  echo 'int i;' > conftest.$ac_ext
+  if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; then
+    case "`/usr/bin/file conftest.o`" in
+    *32-bit*)
+      case $host in
+        x86_64-*linux*)
+          LD="${LD-ld} -m elf_i386"
+          ;;
+        ppc64-*linux*)
+          LD="${LD-ld} -m elf32ppclinux"
+          ;;
+        s390x-*linux*)
+          LD="${LD-ld} -m elf_s390"
+          ;;
+        sparc64-*linux*)
+          LD="${LD-ld} -m elf32_sparc"
+          ;;
+      esac
+      ;;
+    *64-bit*)
+      case $host in
+        x86_64-*linux*)
+          LD="${LD-ld} -m elf_x86_64"
+          ;;
+        ppc*-*linux*|powerpc*-*linux*)
+          LD="${LD-ld} -m elf64ppc"
+          ;;
+        s390*-*linux*)
+          LD="${LD-ld} -m elf64_s390"
+          ;;
+        sparc*-*linux*)
+          LD="${LD-ld} -m elf64_sparc"
+          ;;
+      esac
+      ;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+
+*-*-sco3.2v5*)
+  # On SCO OpenServer 5, we need -belf to get full-featured binaries.
+  SAVE_CFLAGS="$CFLAGS"
+  CFLAGS="$CFLAGS -belf"
+  echo "$as_me:$LINENO: checking whether the C compiler needs -belf" >&5
+echo $ECHO_N "checking whether the C compiler needs -belf... $ECHO_C" >&6
+if test "${lt_cv_cc_needs_belf+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+     cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  lt_cv_cc_needs_belf=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+lt_cv_cc_needs_belf=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+     ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+echo "$as_me:$LINENO: result: $lt_cv_cc_needs_belf" >&5
+echo "${ECHO_T}$lt_cv_cc_needs_belf" >&6
+  if test x"$lt_cv_cc_needs_belf" != x"yes"; then
+    # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
+    CFLAGS="$SAVE_CFLAGS"
+  fi
+  ;;
+
+esac
+
+need_locks="$enable_libtool_lock"
+
+
+echo "$as_me:$LINENO: checking for ANSI C header files" >&5
+echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6
+if test "${ac_cv_header_stdc+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <float.h>
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_header_stdc=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_header_stdc=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+
+if test $ac_cv_header_stdc = yes; then
+  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <string.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "memchr" >/dev/null 2>&1; then
+  :
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <stdlib.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "free" >/dev/null 2>&1; then
+  :
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
+  if test "$cross_compiling" = yes; then
+  :
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <ctype.h>
+#if ((' ' & 0x0FF) == 0x020)
+# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+#else
+# define ISLOWER(c) \
+                   (('a' <= (c) && (c) <= 'i') \
+                     || ('j' <= (c) && (c) <= 'r') \
+                     || ('s' <= (c) && (c) <= 'z'))
+# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
+#endif
+
+#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+int
+main ()
+{
+  int i;
+  for (i = 0; i < 256; i++)
+    if (XOR (islower (i), ISLOWER (i))
+        || toupper (i) != TOUPPER (i))
+      exit(2);
+  exit (0);
+}
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  :
+else
+  echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+( exit $ac_status )
+ac_cv_header_stdc=no
+fi
+rm -f core core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+fi
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5
+echo "${ECHO_T}$ac_cv_header_stdc" >&6
+if test $ac_cv_header_stdc = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define STDC_HEADERS 1
+_ACEOF
+
+fi
+
+# On IRIX 5.3, sys/types and inttypes.h are conflicting.
+
+
+
+
+
+
+
+
+
+for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
+                  inttypes.h stdint.h unistd.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  eval "$as_ac_Header=yes"
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_Header=no"
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+
+for ac_header in dlfcn.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+else
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_header_compiler=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_c_preproc_warn_flag
+  else
+    ac_cpp_err=
+  fi
+else
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  ac_header_preproc=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc in
+  yes:no )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
+    (
+      cat <<\_ASBOX
+## ------------------------------------ ##
+## Report this to bug-autoconf@gnu.org. ##
+## ------------------------------------ ##
+_ASBOX
+    ) |
+      sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+  no:yes )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
+    (
+      cat <<\_ASBOX
+## ------------------------------------ ##
+## Report this to bug-autoconf@gnu.org. ##
+## ------------------------------------ ##
+_ASBOX
+    ) |
+      sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  eval "$as_ac_Header=$ac_header_preproc"
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+
+fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+ac_ext=cc
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+echo "$as_me:$LINENO: checking how to run the C++ preprocessor" >&5
+echo $ECHO_N "checking how to run the C++ preprocessor... $ECHO_C" >&6
+if test -z "$CXXCPP"; then
+  if test "${ac_cv_prog_CXXCPP+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+      # Double quotes because CXXCPP needs to be expanded
+    for CXXCPP in "$CXX -E" "/lib/cpp"
+    do
+      ac_preproc_ok=false
+for ac_cxx_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+                     Syntax error
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_cxx_preproc_warn_flag
+  else
+    ac_cpp_err=
+  fi
+else
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  :
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether non-existent headers
+  # can be detected and how.
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_cxx_preproc_warn_flag
+  else
+    ac_cpp_err=
+  fi
+else
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  # Broken: success on invalid input.
+continue
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then
+  break
+fi
+
+    done
+    ac_cv_prog_CXXCPP=$CXXCPP
+
+fi
+  CXXCPP=$ac_cv_prog_CXXCPP
+else
+  ac_cv_prog_CXXCPP=$CXXCPP
+fi
+echo "$as_me:$LINENO: result: $CXXCPP" >&5
+echo "${ECHO_T}$CXXCPP" >&6
+ac_preproc_ok=false
+for ac_cxx_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+                     Syntax error
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_cxx_preproc_warn_flag
+  else
+    ac_cpp_err=
+  fi
+else
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  :
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether non-existent headers
+  # can be detected and how.
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_cxx_preproc_warn_flag
+  else
+    ac_cpp_err=
+  fi
+else
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  # Broken: success on invalid input.
+continue
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then
+  :
+else
+  { { echo "$as_me:$LINENO: error: C++ preprocessor \"$CXXCPP\" fails sanity check
+See \`config.log' for more details." >&5
+echo "$as_me: error: C++ preprocessor \"$CXXCPP\" fails sanity check
+See \`config.log' for more details." >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+ac_ext=cc
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+ac_ext=f
+ac_compile='$F77 -c $FFLAGS conftest.$ac_ext >&5'
+ac_link='$F77 -o conftest$ac_exeext $FFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_f77_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+  for ac_prog in g77 f77 xlf frt pgf77 fl32 af77 fort77 f90 xlf90 pgf90 epcf90 f95 fort xlf95 lf95 g95
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_F77+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$F77"; then
+  ac_cv_prog_F77="$F77" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_F77="$ac_tool_prefix$ac_prog"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+F77=$ac_cv_prog_F77
+if test -n "$F77"; then
+  echo "$as_me:$LINENO: result: $F77" >&5
+echo "${ECHO_T}$F77" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+    test -n "$F77" && break
+  done
+fi
+if test -z "$F77"; then
+  ac_ct_F77=$F77
+  for ac_prog in g77 f77 xlf frt pgf77 fl32 af77 fort77 f90 xlf90 pgf90 epcf90 f95 fort xlf95 lf95 g95
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_F77+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$ac_ct_F77"; then
+  ac_cv_prog_ac_ct_F77="$ac_ct_F77" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_F77="$ac_prog"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+ac_ct_F77=$ac_cv_prog_ac_ct_F77
+if test -n "$ac_ct_F77"; then
+  echo "$as_me:$LINENO: result: $ac_ct_F77" >&5
+echo "${ECHO_T}$ac_ct_F77" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+  test -n "$ac_ct_F77" && break
+done
+
+  F77=$ac_ct_F77
+fi
+
+
+# Provide some information about the compiler.
+echo "$as_me:5007:" \
+     "checking for Fortran 77 compiler version" >&5
+ac_compiler=`set X $ac_compile; echo $2`
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
+  (eval $ac_compiler --version </dev/null >&5) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler -v </dev/null >&5\"") >&5
+  (eval $ac_compiler -v </dev/null >&5) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler -V </dev/null >&5\"") >&5
+  (eval $ac_compiler -V </dev/null >&5) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+
+# If we don't use `.F' as extension, the preprocessor is not run on the
+# input file.
+ac_save_ext=$ac_ext
+ac_ext=F
+echo "$as_me:$LINENO: checking whether we are using the GNU Fortran 77 compiler" >&5
+echo $ECHO_N "checking whether we are using the GNU Fortran 77 compiler... $ECHO_C" >&6
+if test "${ac_cv_f77_compiler_gnu+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+      program main
+#ifndef __GNUC__
+       choke me
+#endif
+
+      end
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_compiler_gnu=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_compiler_gnu=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+ac_cv_f77_compiler_gnu=$ac_compiler_gnu
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_f77_compiler_gnu" >&5
+echo "${ECHO_T}$ac_cv_f77_compiler_gnu" >&6
+ac_ext=$ac_save_ext
+G77=`test $ac_compiler_gnu = yes && echo yes`
+ac_test_FFLAGS=${FFLAGS+set}
+ac_save_FFLAGS=$FFLAGS
+FFLAGS=
+echo "$as_me:$LINENO: checking whether $F77 accepts -g" >&5
+echo $ECHO_N "checking whether $F77 accepts -g... $ECHO_C" >&6
+if test "${ac_cv_prog_f77_g+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  FFLAGS=-g
+cat >conftest.$ac_ext <<_ACEOF
+      program main
+
+      end
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_prog_f77_g=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_prog_f77_g=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_prog_f77_g" >&5
+echo "${ECHO_T}$ac_cv_prog_f77_g" >&6
+if test "$ac_test_FFLAGS" = set; then
+  FFLAGS=$ac_save_FFLAGS
+elif test $ac_cv_prog_f77_g = yes; then
+  if test "$G77" = yes; then
+    FFLAGS="-g -O2"
+  else
+    FFLAGS="-g"
+  fi
+else
+  if test "$G77" = yes; then
+    FFLAGS="-O2"
+  else
+    FFLAGS=
+  fi
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+# Autoconf 2.13's AC_OBJEXT and AC_EXEEXT macros only works for C compilers!
+
+# find the maximum length of command line arguments
+echo "$as_me:$LINENO: checking the maximum length of command line arguments" >&5
+echo $ECHO_N "checking the maximum length of command line arguments... $ECHO_C" >&6
+if test "${lt_cv_sys_max_cmd_len+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+    i=0
+  testring="ABCD"
+
+  case $build_os in
+  msdosdjgpp*)
+    # On DJGPP, this test can blow up pretty badly due to problems in libc
+    # (any single argument exceeding 2000 bytes causes a buffer overrun
+    # during glob expansion).  Even if it were fixed, the result of this
+    # check would be larger than it should be.
+    lt_cv_sys_max_cmd_len=12288;    # 12K is about right
+    ;;
+
+  gnu*)
+    # Under GNU Hurd, this test is not required because there is
+    # no limit to the length of command line arguments.
+    # Libtool will interpret -1 as no limit whatsoever
+    lt_cv_sys_max_cmd_len=-1;
+    ;;
+
+  cygwin* | mingw*)
+    # On Win9x/ME, this test blows up -- it succeeds, but takes
+    # about 5 minutes as the teststring grows exponentially.
+    # Worse, since 9x/ME are not pre-emptively multitasking,
+    # you end up with a "frozen" computer, even though with patience
+    # the test eventually succeeds (with a max line length of 256k).
+    # Instead, let's just punt: use the minimum linelength reported by
+    # all of the supported platforms: 8192 (on NT/2K/XP).
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+ *)
+    # If test is not a shell built-in, we'll probably end up computing a
+    # maximum length that is only half of the actual maximum length, but
+    # we can't tell.
+    while (test "X"`$CONFIG_SHELL $0 --fallback-echo "X$testring" 2>/dev/null` \
+              = "XX$testring") >/dev/null 2>&1 &&
+           new_result=`expr "X$testring" : ".*" 2>&1` &&
+           lt_cv_sys_max_cmd_len=$new_result &&
+           test $i != 17 # 1/2 MB should be enough
+    do
+      i=`expr $i + 1`
+      testring=$testring$testring
+    done
+    testring=
+    # Add a significant safety factor because C++ compilers can tack on massive
+    # amounts of additional arguments before passing them to the linker.
+    # It appears as though 1/2 is a usable value.
+    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`
+    ;;
+  esac
+
+fi
+
+if test -n $lt_cv_sys_max_cmd_len ; then
+  echo "$as_me:$LINENO: result: $lt_cv_sys_max_cmd_len" >&5
+echo "${ECHO_T}$lt_cv_sys_max_cmd_len" >&6
+else
+  echo "$as_me:$LINENO: result: none" >&5
+echo "${ECHO_T}none" >&6
+fi
+
+
+
+
+# Check for command to grab the raw symbol name followed by C symbol from nm.
+echo "$as_me:$LINENO: checking command to parse $NM output from $compiler object" >&5
+echo $ECHO_N "checking command to parse $NM output from $compiler object... $ECHO_C" >&6
+if test "${lt_cv_sys_global_symbol_pipe+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+# These are sane defaults that work on at least a few old systems.
+# [They come from Ultrix.  What could be older than Ultrix?!! ;)]
+
+# Character class describing NM global symbol codes.
+symcode='[BCDEGRST]'
+
+# Regexp to match symbols that can be accessed directly from C.
+sympat='\([_A-Za-z][_A-Za-z0-9]*\)'
+
+# Transform the above into a raw symbol and a C symbol.
+symxfrm='\1 \2\3 \3'
+
+# Transform an extracted symbol line into a proper C declaration
+lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^. .* \(.*\)$/extern int \1;/p'"
+
+# Transform an extracted symbol line into symbol name and symbol address
+lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([^ ]*\) $/  {\\\"\1\\\", (lt_ptr) 0},/p' -e 's/^$symcode \([^ ]*\) \([^ ]*\)$/  {\"\2\", (lt_ptr) \&\2},/p'"
+
+# Define system-specific variables.
+case $host_os in
+aix*)
+  symcode='[BCDT]'
+  ;;
+cygwin* | mingw* | pw32*)
+  symcode='[ABCDGISTW]'
+  ;;
+hpux*) # Its linker distinguishes data from code symbols
+  if test "$host_cpu" = ia64; then
+    symcode='[ABCDEGRST]'
+  fi
+  lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern int \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'"
+  lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([^ ]*\) $/  {\\\"\1\\\", (lt_ptr) 0},/p' -e 's/^$symcode* \([^ ]*\) \([^ ]*\)$/  {\"\2\", (lt_ptr) \&\2},/p'"
+  ;;
+irix* | nonstopux*)
+  symcode='[BCDEGRST]'
+  ;;
+osf*)
+  symcode='[BCDEGQRST]'
+  ;;
+solaris* | sysv5*)
+  symcode='[BDRT]'
+  ;;
+sysv4)
+  symcode='[DFNSTU]'
+  ;;
+esac
+
+# Handle CRLF in mingw tool chain
+opt_cr=
+case $build_os in
+mingw*)
+  opt_cr=`echo 'x\{0,1\}' | tr x '\015'` # option cr in regexp
+  ;;
+esac
+
+# If we're using GNU nm, then use its standard symbol codes.
+case `$NM -V 2>&1` in
+*GNU* | *'with BFD'*)
+  symcode='[ABCDGIRSTW]' ;;
+esac
+
+# Try without a prefix undercore, then with it.
+for ac_symprfx in "" "_"; do
+
+  # Write the raw and C identifiers.
+  lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[      ]\($symcode$symcode*\)[         ][      ]*\($ac_symprfx\)$sympat$opt_cr$/$symxfrm/p'"
+
+  # Check to see that the pipe works correctly.
+  pipe_works=no
+
+  rm -f conftest*
+  cat > conftest.$ac_ext <<EOF
+#ifdef __cplusplus
+extern "C" {
+#endif
+char nm_test_var;
+void nm_test_func(){}
+#ifdef __cplusplus
+}
+#endif
+int main(){nm_test_var='a';nm_test_func();return(0);}
+EOF
+
+  if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; then
+    # Now try to grab the symbols.
+    nlist=conftest.nm
+    if { (eval echo "$as_me:$LINENO: \"$NM conftest.$ac_objext \| $lt_cv_sys_global_symbol_pipe \> $nlist\"") >&5
+  (eval $NM conftest.$ac_objext \| $lt_cv_sys_global_symbol_pipe \> $nlist) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && test -s "$nlist"; then
+      # Try sorting and uniquifying the output.
+      if sort "$nlist" | uniq > "$nlist"T; then
+       mv -f "$nlist"T "$nlist"
+      else
+       rm -f "$nlist"T
+      fi
+
+      # Make sure that we snagged all the symbols we need.
+      if grep ' nm_test_var$' "$nlist" >/dev/null; then
+       if grep ' nm_test_func$' "$nlist" >/dev/null; then
+         cat <<EOF > conftest.$ac_ext
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+EOF
+         # Now generate the symbol file.
+         eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | grep -v main >> conftest.$ac_ext'
+
+         cat <<EOF >> conftest.$ac_ext
+#if defined (__STDC__) && __STDC__
+# define lt_ptr_t void *
+#else
+# define lt_ptr_t char *
+# define const
+#endif
+
+/* The mapping between symbol names and symbols. */
+const struct {
+  const char *name;
+  lt_ptr_t address;
+}
+lt_preloaded_symbols[] =
+{
+EOF
+         $SED "s/^$symcode$symcode* \(.*\) \(.*\)$/  {\"\2\", (lt_ptr_t) \&\2},/" < "$nlist" | grep -v main >> conftest.$ac_ext
+         cat <<\EOF >> conftest.$ac_ext
+  {0, (lt_ptr_t) 0}
+};
+
+#ifdef __cplusplus
+}
+#endif
+EOF
+         # Now try linking the two files.
+         mv conftest.$ac_objext conftstm.$ac_objext
+         lt_save_LIBS="$LIBS"
+         lt_save_CFLAGS="$CFLAGS"
+         LIBS="conftstm.$ac_objext"
+         CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag"
+         if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && test -s conftest${ac_exeext}; then
+           pipe_works=yes
+         fi
+         LIBS="$lt_save_LIBS"
+         CFLAGS="$lt_save_CFLAGS"
+       else
+         echo "cannot find nm_test_func in $nlist" >&5
+       fi
+      else
+       echo "cannot find nm_test_var in $nlist" >&5
+      fi
+    else
+      echo "cannot run $lt_cv_sys_global_symbol_pipe" >&5
+    fi
+  else
+    echo "$progname: failed program was:" >&5
+    cat conftest.$ac_ext >&5
+  fi
+  rm -f conftest* conftst*
+
+  # Do not use the global_symbol_pipe unless it works.
+  if test "$pipe_works" = yes; then
+    break
+  else
+    lt_cv_sys_global_symbol_pipe=
+  fi
+done
+
+fi
+
+if test -z "$lt_cv_sys_global_symbol_pipe"; then
+  lt_cv_sys_global_symbol_to_cdecl=
+fi
+if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
+  echo "$as_me:$LINENO: result: failed" >&5
+echo "${ECHO_T}failed" >&6
+else
+  echo "$as_me:$LINENO: result: ok" >&5
+echo "${ECHO_T}ok" >&6
+fi
+
+echo "$as_me:$LINENO: checking for objdir" >&5
+echo $ECHO_N "checking for objdir... $ECHO_C" >&6
+if test "${lt_cv_objdir+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  rm -f .libs 2>/dev/null
+mkdir .libs 2>/dev/null
+if test -d .libs; then
+  lt_cv_objdir=.libs
+else
+  # MS-DOS does not allow filenames that begin with a dot.
+  lt_cv_objdir=_libs
+fi
+rmdir .libs 2>/dev/null
+fi
+echo "$as_me:$LINENO: result: $lt_cv_objdir" >&5
+echo "${ECHO_T}$lt_cv_objdir" >&6
+objdir=$lt_cv_objdir
+
+
+
+
+
+case $host_os in
+aix3*)
+  # AIX sometimes has problems with the GCC collect2 program.  For some
+  # reason, if we set the COLLECT_NAMES environment variable, the problems
+  # vanish in a puff of smoke.
+  if test "X${COLLECT_NAMES+set}" != Xset; then
+    COLLECT_NAMES=
+    export COLLECT_NAMES
+  fi
+  ;;
+esac
+
+# Sed substitution that helps us do robust quoting.  It backslashifies
+# metacharacters that are still active within double-quoted strings.
+Xsed='sed -e s/^X//'
+sed_quote_subst='s/\([\\"\\`$\\\\]\)/\\\1/g'
+
+# Same as above, but do not quote variable references.
+double_quote_subst='s/\([\\"\\`\\\\]\)/\\\1/g'
+
+# Sed substitution to delay expansion of an escaped shell variable in a
+# double_quote_subst'ed string.
+delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'
+
+# Sed substitution to avoid accidental globbing in evaled expressions
+no_glob_subst='s/\*/\\\*/g'
+
+# Constants:
+rm="rm -f"
+
+# Global variables:
+default_ofile=libtool
+can_build_shared=yes
+
+# All known linkers require a `.a' archive for static linking (except M$VC,
+# which needs '.lib').
+libext=a
+ltmain="$ac_aux_dir/ltmain.sh"
+ofile="$default_ofile"
+with_gnu_ld="$lt_cv_prog_gnu_ld"
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ar; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_AR+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$AR"; then
+  ac_cv_prog_AR="$AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AR="${ac_tool_prefix}ar"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+AR=$ac_cv_prog_AR
+if test -n "$AR"; then
+  echo "$as_me:$LINENO: result: $AR" >&5
+echo "${ECHO_T}$AR" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$ac_cv_prog_AR"; then
+  ac_ct_AR=$AR
+  # Extract the first word of "ar", so it can be a program name with args.
+set dummy ar; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_AR+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$ac_ct_AR"; then
+  ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_AR="ar"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+  test -z "$ac_cv_prog_ac_ct_AR" && ac_cv_prog_ac_ct_AR="false"
+fi
+fi
+ac_ct_AR=$ac_cv_prog_ac_ct_AR
+if test -n "$ac_ct_AR"; then
+  echo "$as_me:$LINENO: result: $ac_ct_AR" >&5
+echo "${ECHO_T}$ac_ct_AR" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+  AR=$ac_ct_AR
+else
+  AR="$ac_cv_prog_AR"
+fi
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ranlib; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_RANLIB+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$RANLIB"; then
+  ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+RANLIB=$ac_cv_prog_RANLIB
+if test -n "$RANLIB"; then
+  echo "$as_me:$LINENO: result: $RANLIB" >&5
+echo "${ECHO_T}$RANLIB" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$ac_cv_prog_RANLIB"; then
+  ac_ct_RANLIB=$RANLIB
+  # Extract the first word of "ranlib", so it can be a program name with args.
+set dummy ranlib; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_RANLIB+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$ac_ct_RANLIB"; then
+  ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_RANLIB="ranlib"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+  test -z "$ac_cv_prog_ac_ct_RANLIB" && ac_cv_prog_ac_ct_RANLIB=":"
+fi
+fi
+ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
+if test -n "$ac_ct_RANLIB"; then
+  echo "$as_me:$LINENO: result: $ac_ct_RANLIB" >&5
+echo "${ECHO_T}$ac_ct_RANLIB" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+  RANLIB=$ac_ct_RANLIB
+else
+  RANLIB="$ac_cv_prog_RANLIB"
+fi
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
+set dummy ${ac_tool_prefix}strip; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_STRIP+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$STRIP"; then
+  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+STRIP=$ac_cv_prog_STRIP
+if test -n "$STRIP"; then
+  echo "$as_me:$LINENO: result: $STRIP" >&5
+echo "${ECHO_T}$STRIP" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$ac_cv_prog_STRIP"; then
+  ac_ct_STRIP=$STRIP
+  # Extract the first word of "strip", so it can be a program name with args.
+set dummy strip; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_STRIP+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$ac_ct_STRIP"; then
+  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_STRIP="strip"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+  test -z "$ac_cv_prog_ac_ct_STRIP" && ac_cv_prog_ac_ct_STRIP=":"
+fi
+fi
+ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
+if test -n "$ac_ct_STRIP"; then
+  echo "$as_me:$LINENO: result: $ac_ct_STRIP" >&5
+echo "${ECHO_T}$ac_ct_STRIP" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+  STRIP=$ac_ct_STRIP
+else
+  STRIP="$ac_cv_prog_STRIP"
+fi
+
+
+old_CC="$CC"
+old_CFLAGS="$CFLAGS"
+
+# Set sane defaults for various variables
+test -z "$AR" && AR=ar
+test -z "$AR_FLAGS" && AR_FLAGS=cru
+test -z "$AS" && AS=as
+test -z "$CC" && CC=cc
+test -z "$LTCC" && LTCC=$CC
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+test -z "$LD" && LD=ld
+test -z "$LN_S" && LN_S="ln -s"
+test -z "$MAGIC_CMD" && MAGIC_CMD=file
+test -z "$NM" && NM=nm
+test -z "$SED" && SED=sed
+test -z "$OBJDUMP" && OBJDUMP=objdump
+test -z "$RANLIB" && RANLIB=:
+test -z "$STRIP" && STRIP=:
+test -z "$ac_objext" && ac_objext=o
+
+# Determine commands to create old-style static archives.
+old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs$old_deplibs'
+old_postinstall_cmds='chmod 644 $oldlib'
+old_postuninstall_cmds=
+
+if test -n "$RANLIB"; then
+  case $host_os in
+  openbsd*)
+    old_postinstall_cmds="\$RANLIB -t \$oldlib~$old_postinstall_cmds"
+    ;;
+  *)
+    old_postinstall_cmds="\$RANLIB \$oldlib~$old_postinstall_cmds"
+    ;;
+  esac
+  old_archive_cmds="$old_archive_cmds~\$RANLIB \$oldlib"
+fi
+
+# Only perform the check for file, if the check method requires it
+case $deplibs_check_method in
+file_magic*)
+  if test "$file_magic_cmd" = '$MAGIC_CMD'; then
+    echo "$as_me:$LINENO: checking for ${ac_tool_prefix}file" >&5
+echo $ECHO_N "checking for ${ac_tool_prefix}file... $ECHO_C" >&6
+if test "${lt_cv_path_MAGIC_CMD+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  case $MAGIC_CMD in
+[\\/*] |  ?:[\\/]*)
+  lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
+  ;;
+*)
+  lt_save_MAGIC_CMD="$MAGIC_CMD"
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
+  for ac_dir in $ac_dummy; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/${ac_tool_prefix}file; then
+      lt_cv_path_MAGIC_CMD="$ac_dir/${ac_tool_prefix}file"
+      if test -n "$file_magic_test_file"; then
+       case $deplibs_check_method in
+       "file_magic "*)
+         file_magic_regex="`expr \"$deplibs_check_method\" : \"file_magic \(.*\)\"`"
+         MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+         if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+           $EGREP "$file_magic_regex" > /dev/null; then
+           :
+         else
+           cat <<EOF 1>&2
+
+*** Warning: the command libtool uses to detect shared libraries,
+*** $file_magic_cmd, produces output that libtool cannot recognize.
+*** The result is that libtool may fail to recognize shared libraries
+*** as such.  This will affect the creation of libtool libraries that
+*** depend on shared libraries, but programs linked with such libtool
+*** libraries will work regardless of this problem.  Nevertheless, you
+*** may want to report the problem to your system manager and/or to
+*** bug-libtool@gnu.org
+
+EOF
+         fi ;;
+       esac
+      fi
+      break
+    fi
+  done
+  IFS="$lt_save_ifs"
+  MAGIC_CMD="$lt_save_MAGIC_CMD"
+  ;;
+esac
+fi
+
+MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+if test -n "$MAGIC_CMD"; then
+  echo "$as_me:$LINENO: result: $MAGIC_CMD" >&5
+echo "${ECHO_T}$MAGIC_CMD" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+if test -z "$lt_cv_path_MAGIC_CMD"; then
+  if test -n "$ac_tool_prefix"; then
+    echo "$as_me:$LINENO: checking for file" >&5
+echo $ECHO_N "checking for file... $ECHO_C" >&6
+if test "${lt_cv_path_MAGIC_CMD+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  case $MAGIC_CMD in
+[\\/*] |  ?:[\\/]*)
+  lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
+  ;;
+*)
+  lt_save_MAGIC_CMD="$MAGIC_CMD"
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
+  for ac_dir in $ac_dummy; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/file; then
+      lt_cv_path_MAGIC_CMD="$ac_dir/file"
+      if test -n "$file_magic_test_file"; then
+       case $deplibs_check_method in
+       "file_magic "*)
+         file_magic_regex="`expr \"$deplibs_check_method\" : \"file_magic \(.*\)\"`"
+         MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+         if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+           $EGREP "$file_magic_regex" > /dev/null; then
+           :
+         else
+           cat <<EOF 1>&2
+
+*** Warning: the command libtool uses to detect shared libraries,
+*** $file_magic_cmd, produces output that libtool cannot recognize.
+*** The result is that libtool may fail to recognize shared libraries
+*** as such.  This will affect the creation of libtool libraries that
+*** depend on shared libraries, but programs linked with such libtool
+*** libraries will work regardless of this problem.  Nevertheless, you
+*** may want to report the problem to your system manager and/or to
+*** bug-libtool@gnu.org
+
+EOF
+         fi ;;
+       esac
+      fi
+      break
+    fi
+  done
+  IFS="$lt_save_ifs"
+  MAGIC_CMD="$lt_save_MAGIC_CMD"
+  ;;
+esac
+fi
+
+MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+if test -n "$MAGIC_CMD"; then
+  echo "$as_me:$LINENO: result: $MAGIC_CMD" >&5
+echo "${ECHO_T}$MAGIC_CMD" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+  else
+    MAGIC_CMD=:
+  fi
+fi
+
+  fi
+  ;;
+esac
+
+enable_dlopen=no
+enable_win32_dll=no
+
+# Check whether --enable-libtool-lock or --disable-libtool-lock was given.
+if test "${enable_libtool_lock+set}" = set; then
+  enableval="$enable_libtool_lock"
+
+fi;
+test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes
+
+
+# Check whether --with-pic or --without-pic was given.
+if test "${with_pic+set}" = set; then
+  withval="$with_pic"
+  pic_mode="$withval"
+else
+  pic_mode=default
+fi;
+test -z "$pic_mode" && pic_mode=default
+
+# Use C for the default configuration in the libtool script
+tagname=
+lt_save_CC="$CC"
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+# Source file extension for C test sources.
+ac_ext=c
+
+# Object file extension for compiled C test sources.
+objext=o
+objext=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="int some_variable = 0;\n"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='int main(){return(0);}\n'
+
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+
+#
+# Check for any special shared library compilation flags.
+#
+lt_prog_cc_shlib=
+if test "$GCC" = no; then
+  case $host_os in
+  sco3.2v5*)
+    lt_prog_cc_shlib='-belf'
+    ;;
+  esac
+fi
+if test -n "$lt_prog_cc_shlib"; then
+  { echo "$as_me:$LINENO: WARNING: \`$CC' requires \`$lt_prog_cc_shlib' to build shared libraries" >&5
+echo "$as_me: WARNING: \`$CC' requires \`$lt_prog_cc_shlib' to build shared libraries" >&2;}
+  if echo "$old_CC $old_CFLAGS " | grep "[     ]$lt_prog_cc_shlib[     ]" >/dev/null; then :
+  else
+    { echo "$as_me:$LINENO: WARNING: add \`$lt_prog_cc_shlib' to the CC or CFLAGS env variable and reconfigure" >&5
+echo "$as_me: WARNING: add \`$lt_prog_cc_shlib' to the CC or CFLAGS env variable and reconfigure" >&2;}
+    lt_cv_prog_cc_can_build_shared=no
+  fi
+fi
+
+
+#
+# Check to make sure the static flag actually works.
+#
+echo "$as_me:$LINENO: checking if $compiler static flag $lt_prog_compiler_static works" >&5
+echo $ECHO_N "checking if $compiler static flag $lt_prog_compiler_static works... $ECHO_C" >&6
+if test "${lt_prog_compiler_static_works+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  lt_prog_compiler_static_works=no
+   save_LDFLAGS="$LDFLAGS"
+   LDFLAGS="$LDFLAGS $lt_prog_compiler_static"
+   printf "$lt_simple_link_test_code" > conftest.$ac_ext
+   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test -s conftest.err; then
+       # Append any errors to the config.log.
+       cat conftest.err 1>&5
+     else
+       lt_prog_compiler_static_works=yes
+     fi
+   fi
+   $rm conftest*
+   LDFLAGS="$save_LDFLAGS"
+
+fi
+echo "$as_me:$LINENO: result: $lt_prog_compiler_static_works" >&5
+echo "${ECHO_T}$lt_prog_compiler_static_works" >&6
+
+if test x"$lt_prog_compiler_static_works" = xyes; then
+    :
+else
+    lt_prog_compiler_static=
+fi
+
+
+
+
+lt_prog_compiler_no_builtin_flag=
+
+if test "$GCC" = yes; then
+  lt_prog_compiler_no_builtin_flag=' -fno-builtin'
+
+  echo "$as_me:$LINENO: checking if $compiler supports -fno-rtti -fno-exceptions" >&5
+echo $ECHO_N "checking if $compiler supports -fno-rtti -fno-exceptions... $ECHO_C" >&6
+if test "${lt_cv_prog_compiler_rtti_exceptions+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  lt_cv_prog_compiler_rtti_exceptions=no
+  ac_outfile=conftest.$ac_objext
+   printf "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="-fno-rtti -fno-exceptions"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:6012: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&5
+   echo "$as_me:6016: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test ! -s conftest.err; then
+       lt_cv_prog_compiler_rtti_exceptions=yes
+     fi
+   fi
+   $rm conftest*
+
+fi
+echo "$as_me:$LINENO: result: $lt_cv_prog_compiler_rtti_exceptions" >&5
+echo "${ECHO_T}$lt_cv_prog_compiler_rtti_exceptions" >&6
+
+if test x"$lt_cv_prog_compiler_rtti_exceptions" = xyes; then
+    lt_prog_compiler_no_builtin_flag="$lt_prog_compiler_no_builtin_flag -fno-rtti -fno-exceptions"
+else
+    :
+fi
+
+fi
+
+lt_prog_compiler_wl=
+lt_prog_compiler_pic=
+lt_prog_compiler_static=
+
+echo "$as_me:$LINENO: checking for $compiler option to produce PIC" >&5
+echo $ECHO_N "checking for $compiler option to produce PIC... $ECHO_C" >&6
+
+  if test "$GCC" = yes; then
+    lt_prog_compiler_wl='-Wl,'
+    lt_prog_compiler_static='-static'
+
+    case $host_os in
+      aix*)
+      # All AIX code is PIC.
+      if test "$host_cpu" = ia64; then
+       # AIX 5 now supports IA64 processor
+       lt_prog_compiler_static='-Bstatic'
+      fi
+      ;;
+
+    amigaos*)
+      # FIXME: we need at least 68020 code to build shared libraries, but
+      # adding the `-m68020' flag to GCC prevents building anything better,
+      # like `-m68040'.
+      lt_prog_compiler_pic='-m68020 -resident32 -malways-restore-a4'
+      ;;
+
+    beos* | cygwin* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+
+    mingw* | pw32* | os2*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      lt_prog_compiler_pic='-DDLL_EXPORT'
+      ;;
+
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      lt_prog_compiler_pic='-fno-common'
+      ;;
+
+    msdosdjgpp*)
+      # Just because we use GCC doesn't mean we suddenly get shared libraries
+      # on systems that don't support them.
+      lt_prog_compiler_can_build_shared=no
+      enable_shared=no
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+       lt_prog_compiler_pic=-Kconform_pic
+      fi
+      ;;
+
+    hpux*)
+      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
+      # not for PA HP-UX.
+      case "$host_cpu" in
+      hppa*64*|ia64*)
+       # +Z the default
+       ;;
+      *)
+       lt_prog_compiler_pic='-fPIC'
+       ;;
+      esac
+      ;;
+
+    *)
+      lt_prog_compiler_pic='-fPIC'
+      ;;
+    esac
+  else
+    # PORTME Check for flag to pass linker flags through the system compiler.
+    case $host_os in
+    aix*)
+      lt_prog_compiler_wl='-Wl,'
+      if test "$host_cpu" = ia64; then
+       # AIX 5 now supports IA64 processor
+       lt_prog_compiler_static='-Bstatic'
+      else
+       lt_prog_compiler_static='-bnso -bI:/lib/syscalls.exp'
+      fi
+      ;;
+
+    mingw* | pw32* | os2*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      lt_prog_compiler_pic='-DDLL_EXPORT'
+      ;;
+
+    hpux9* | hpux10* | hpux11*)
+      lt_prog_compiler_wl='-Wl,'
+      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
+      # not for PA HP-UX.
+      case "$host_cpu" in
+      hppa*64*|ia64*)
+       # +Z the default
+       ;;
+      *)
+       lt_prog_compiler_pic='+Z'
+       ;;
+      esac
+      # Is there a better lt_prog_compiler_static that works with the bundled CC?
+      lt_prog_compiler_static='${wl}-a ${wl}archive'
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      lt_prog_compiler_wl='-Wl,'
+      # PIC (with -KPIC) is the default.
+      lt_prog_compiler_static='-non_shared'
+      ;;
+
+    newsos6)
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    linux*)
+      case $CC in
+      icc|ecc)
+       lt_prog_compiler_wl='-Wl,'
+       lt_prog_compiler_pic='-KPIC'
+       lt_prog_compiler_static='-static'
+        ;;
+      ccc)
+        lt_prog_compiler_wl='-Wl,'
+        # All Alpha code is PIC.
+        lt_prog_compiler_static='-non_shared'
+        ;;
+      esac
+      ;;
+
+    osf3* | osf4* | osf5*)
+      lt_prog_compiler_wl='-Wl,'
+      # All OSF/1 code is PIC.
+      lt_prog_compiler_static='-non_shared'
+      ;;
+
+    sco3.2v5*)
+      lt_prog_compiler_pic='-Kpic'
+      lt_prog_compiler_static='-dn'
+      ;;
+
+    solaris*)
+      lt_prog_compiler_wl='-Wl,'
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    sunos4*)
+      lt_prog_compiler_wl='-Qoption ld '
+      lt_prog_compiler_pic='-PIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+      lt_prog_compiler_wl='-Wl,'
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec ;then
+       lt_prog_compiler_pic='-Kconform_pic'
+       lt_prog_compiler_static='-Bstatic'
+      fi
+      ;;
+
+    uts4*)
+      lt_prog_compiler_pic='-pic'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    *)
+      lt_prog_compiler_can_build_shared=no
+      ;;
+    esac
+  fi
+
+echo "$as_me:$LINENO: result: $lt_prog_compiler_pic" >&5
+echo "${ECHO_T}$lt_prog_compiler_pic" >&6
+
+#
+# Check to make sure the PIC flag actually works.
+#
+if test -n "$lt_prog_compiler_pic"; then
+  echo "$as_me:$LINENO: checking if $compiler PIC flag $lt_prog_compiler_pic works" >&5
+echo $ECHO_N "checking if $compiler PIC flag $lt_prog_compiler_pic works... $ECHO_C" >&6
+if test "${lt_prog_compiler_pic_works+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  lt_prog_compiler_pic_works=no
+  ac_outfile=conftest.$ac_objext
+   printf "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="$lt_prog_compiler_pic -DPIC"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:6244: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&5
+   echo "$as_me:6248: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test ! -s conftest.err; then
+       lt_prog_compiler_pic_works=yes
+     fi
+   fi
+   $rm conftest*
+
+fi
+echo "$as_me:$LINENO: result: $lt_prog_compiler_pic_works" >&5
+echo "${ECHO_T}$lt_prog_compiler_pic_works" >&6
+
+if test x"$lt_prog_compiler_pic_works" = xyes; then
+    case $lt_prog_compiler_pic in
+     "" | " "*) ;;
+     *) lt_prog_compiler_pic=" $lt_prog_compiler_pic" ;;
+     esac
+else
+    lt_prog_compiler_pic=
+     lt_prog_compiler_can_build_shared=no
+fi
+
+fi
+case "$host_os" in
+  # For platforms which do not support PIC, -DPIC is meaningless:
+  *djgpp*)
+    lt_prog_compiler_pic=
+    ;;
+  *)
+    lt_prog_compiler_pic="$lt_prog_compiler_pic -DPIC"
+    ;;
+esac
+
+echo "$as_me:$LINENO: checking if $compiler supports -c -o file.$ac_objext" >&5
+echo $ECHO_N "checking if $compiler supports -c -o file.$ac_objext... $ECHO_C" >&6
+if test "${lt_cv_prog_compiler_c_o+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  lt_cv_prog_compiler_c_o=no
+   $rm -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   printf "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   # According to Tom Tromey, Ian Lance Taylor reported there are C compilers
+   # that will create temporary files in the current directory regardless of
+   # the output directory.  Thus, making CWD read-only will cause this test
+   # to fail, enabling locking or at least warning the user not to do parallel
+   # builds.
+   chmod -w .
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:6311: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:6315: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test ! -s out/conftest.err; then
+       lt_cv_prog_compiler_c_o=yes
+     fi
+   fi
+   chmod u+w .
+   $rm conftest* out/*
+   rmdir out
+   cd ..
+   rmdir conftest
+   $rm conftest*
+
+fi
+echo "$as_me:$LINENO: result: $lt_cv_prog_compiler_c_o" >&5
+echo "${ECHO_T}$lt_cv_prog_compiler_c_o" >&6
+
+
+hard_links="nottested"
+if test "$lt_cv_prog_compiler_c_o" = no && test "$need_locks" != no; then
+  # do not overwrite the value of need_locks provided by the user
+  echo "$as_me:$LINENO: checking if we can lock with hard links" >&5
+echo $ECHO_N "checking if we can lock with hard links... $ECHO_C" >&6
+  hard_links=yes
+  $rm conftest*
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  touch conftest.a
+  ln conftest.a conftest.b 2>&5 || hard_links=no
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  echo "$as_me:$LINENO: result: $hard_links" >&5
+echo "${ECHO_T}$hard_links" >&6
+  if test "$hard_links" = no; then
+    { echo "$as_me:$LINENO: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&5
+echo "$as_me: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2;}
+    need_locks=warn
+  fi
+else
+  need_locks=no
+fi
+
+echo "$as_me:$LINENO: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+echo $ECHO_N "checking whether the $compiler linker ($LD) supports shared libraries... $ECHO_C" >&6
+
+  runpath_var=
+  allow_undefined_flag=
+  enable_shared_with_static_runtimes=no
+  archive_cmds=
+  archive_expsym_cmds=
+  old_archive_From_new_cmds=
+  old_archive_from_expsyms_cmds=
+  export_dynamic_flag_spec=
+  whole_archive_flag_spec=
+  thread_safe_flag_spec=
+  hardcode_libdir_flag_spec=
+  hardcode_libdir_flag_spec_ld=
+  hardcode_libdir_separator=
+  hardcode_direct=no
+  hardcode_minus_L=no
+  hardcode_shlibpath_var=unsupported
+  link_all_deplibs=unknown
+  hardcode_automatic=no
+  module_cmds=
+  module_expsym_cmds=
+  always_export_symbols=no
+  export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  # include_expsyms should be a list of space-separated symbols to be *always*
+  # included in the symbol list
+  include_expsyms=
+  # exclude_expsyms can be an extended regexp of symbols to exclude
+  # it will be wrapped by ` (' and `)$', so one must not match beginning or
+  # end of line.  Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc',
+  # as well as any symbol that contains `d'.
+  exclude_expsyms="_GLOBAL_OFFSET_TABLE_"
+  # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
+  # platforms (ab)use it in PIC code, but their linkers get confused if
+  # the symbol is explicitly referenced.  Since portable code cannot
+  # rely on this symbol name, it's probably fine to never include it in
+  # preloaded symbol tables.
+  extract_expsyms_cmds=
+
+  case $host_os in
+  cygwin* | mingw* | pw32*)
+    # FIXME: the MSVC++ port hasn't been tested in a loooong time
+    # When not using gcc, we currently assume that we are using
+    # Microsoft Visual C++.
+    if test "$GCC" != yes; then
+      with_gnu_ld=no
+    fi
+    ;;
+  openbsd*)
+    with_gnu_ld=no
+    ;;
+  esac
+
+  ld_shlibs=yes
+  if test "$with_gnu_ld" = yes; then
+    # If archive_cmds runs LD, not CC, wlarc should be empty
+    wlarc='${wl}'
+
+    # See if GNU ld supports shared libraries.
+    case $host_os in
+    aix3* | aix4* | aix5*)
+      # On AIX/PPC, the GNU linker is very broken
+      if test "$host_cpu" != ia64; then
+       ld_shlibs=no
+       cat <<EOF 1>&2
+
+*** Warning: the GNU linker, at least up to release 2.9.1, is reported
+*** to be unable to reliably create shared libraries on AIX.
+*** Therefore, libtool is disabling shared libraries support.  If you
+*** really care for shared libraries, you may want to modify your PATH
+*** so that a non-GNU linker is found, and then restart.
+
+EOF
+      fi
+      ;;
+
+    amigaos*)
+      archive_cmds='$rm $output_objdir/a2ixlibrary.data~$echo "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$echo "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$echo "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$echo "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_minus_L=yes
+
+      # Samuel A. Falvo II <kc5tja@dolphin.openprojects.net> reports
+      # that the semantics of dynamic libraries on AmigaOS, at least up
+      # to version 4, is to share data among multiple programs linked
+      # with the same dynamic library.  Since this doesn't match the
+      # behavior of shared libraries on other platforms, we can't use
+      # them.
+      ld_shlibs=no
+      ;;
+
+    beos*)
+      if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
+       allow_undefined_flag=unsupported
+       # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
+       # support --undefined.  This deserves some investigation.  FIXME
+       archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+      else
+       ld_shlibs=no
+      fi
+      ;;
+
+    cygwin* | mingw* | pw32*)
+      # _LT_AC_TAGVAR(hardcode_libdir_flag_spec, ) is actually meaningless,
+      # as there is no search path for DLLs.
+      hardcode_libdir_flag_spec='-L$libdir'
+      allow_undefined_flag=unsupported
+      always_export_symbols=no
+      enable_shared_with_static_runtimes=yes
+      export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGS] /s/.* \([^ ]*\)/\1 DATA/'\'' | $SED -e '\''/^[AITW] /s/.* //'\'' | sort | uniq > $export_symbols'
+
+      if $LD --help 2>&1 | grep 'auto-import' > /dev/null; then
+        archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--image-base=0x10000000 ${wl}--out-implib,$lib'
+       # If the export-symbols file already is a .def file (1st line
+       # is EXPORTS), use it as is; otherwise, prepend...
+       archive_expsym_cmds='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+         cp $export_symbols $output_objdir/$soname.def;
+       else
+         echo EXPORTS > $output_objdir/$soname.def;
+         cat $export_symbols >> $output_objdir/$soname.def;
+       fi~
+       $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--image-base=0x10000000  ${wl}--out-implib,$lib'
+      else
+       ld_shlibs=no
+      fi
+      ;;
+
+    netbsd*)
+      if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
+       archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
+       wlarc=
+      else
+       archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+       archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      fi
+      ;;
+
+    solaris* | sysv5*)
+      if $LD -v 2>&1 | grep 'BFD 2\.8' > /dev/null; then
+       ld_shlibs=no
+       cat <<EOF 1>&2
+
+*** Warning: The releases 2.8.* of the GNU linker cannot reliably
+*** create shared libraries on Solaris systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.9.1 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+EOF
+      elif $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
+       archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+       archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+       ld_shlibs=no
+      fi
+      ;;
+
+    sunos4*)
+      archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      wlarc=
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+  linux*)
+    if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
+        tmp_archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+       archive_cmds="$tmp_archive_cmds"
+      supports_anon_versioning=no
+      case `$LD -v 2>/dev/null` in
+        *\ 01.* | *\ 2.[0-9].* | *\ 2.10.*) ;; # catch versions < 2.11
+        *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
+        *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
+        *\ 2.11.*) ;; # other 2.11 versions
+        *) supports_anon_versioning=yes ;;
+      esac
+      if test $supports_anon_versioning = yes; then
+        archive_expsym_cmds='$echo "{ global:" > $output_objdir/$libname.ver~
+cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+$echo "local: *; };" >> $output_objdir/$libname.ver~
+        $CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
+      else
+        archive_expsym_cmds="$tmp_archive_cmds"
+      fi
+    else
+      ld_shlibs=no
+    fi
+    ;;
+
+    *)
+      if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
+       archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+       archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+       ld_shlibs=no
+      fi
+      ;;
+    esac
+
+    if test "$ld_shlibs" = yes; then
+      runpath_var=LD_RUN_PATH
+      hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
+      export_dynamic_flag_spec='${wl}--export-dynamic'
+      # ancient GNU ld didn't support --whole-archive et. al.
+      if $LD --help 2>&1 | grep 'no-whole-archive' > /dev/null; then
+       whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+      else
+       whole_archive_flag_spec=
+      fi
+    fi
+  else
+    # PORTME fill in a description of your system's linker (not GNU ld)
+    case $host_os in
+    aix3*)
+      allow_undefined_flag=unsupported
+      always_export_symbols=yes
+      archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
+      # Note: this linker hardcodes the directories in LIBPATH if there
+      # are no directories specified by -L.
+      hardcode_minus_L=yes
+      if test "$GCC" = yes && test -z "$link_static_flag"; then
+       # Neither direct hardcoding nor static linking is supported with a
+       # broken collect2.
+       hardcode_direct=unsupported
+      fi
+      ;;
+
+    aix4* | aix5*)
+      if test "$host_cpu" = ia64; then
+       # On IA64, the linker does run time linking by default, so we don't
+       # have to do anything special.
+       aix_use_runtimelinking=no
+       exp_sym_flag='-Bexport'
+       no_entry_flag=""
+      else
+       # If we're using GNU nm, then we don't want the "-C" option.
+       # -C means demangle to AIX nm, but means don't demangle with GNU nm
+       if $NM -V 2>&1 | grep 'GNU' > /dev/null; then
+         export_symbols_cmds='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$2 == "T") || (\$2 == "D") || (\$2 == "B")) && (substr(\$3,1,1) != ".")) { print \$3 } }'\'' | sort -u > $export_symbols'
+       else
+         export_symbols_cmds='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$2 == "T") || (\$2 == "D") || (\$2 == "B")) && (substr(\$3,1,1) != ".")) { print \$3 } }'\'' | sort -u > $export_symbols'
+       fi
+       aix_use_runtimelinking=no
+
+       # Test if we are trying to use run time linking or normal
+       # AIX style linking. If -brtl is somewhere in LDFLAGS, we
+       # need to do runtime linking.
+       case $host_os in aix4.[23]|aix4.[23].*|aix5*)
+         for ld_flag in $LDFLAGS; do
+         if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
+           aix_use_runtimelinking=yes
+           break
+         fi
+         done
+       esac
+
+       exp_sym_flag='-bexport'
+       no_entry_flag='-bnoentry'
+      fi
+
+      # When large executables or shared objects are built, AIX ld can
+      # have problems creating the table of contents.  If linking a library
+      # or program results in "error TOC overflow" add -mminimal-toc to
+      # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+      # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+      archive_cmds=''
+      hardcode_direct=yes
+      hardcode_libdir_separator=':'
+      link_all_deplibs=yes
+
+      if test "$GCC" = yes; then
+       case $host_os in aix4.012|aix4.012.*)
+       # We only want to do this on AIX 4.2 and lower, the check
+       # below for broken collect2 doesn't work under 4.3+
+         collect2name=`${CC} -print-prog-name=collect2`
+         if test -f "$collect2name" && \
+          strings "$collect2name" | grep resolve_lib_name >/dev/null
+         then
+         # We have reworked collect2
+         hardcode_direct=yes
+         else
+         # We have old collect2
+         hardcode_direct=unsupported
+         # It fails to find uninstalled libraries when the uninstalled
+         # path is not listed in the libpath.  Setting hardcode_minus_L
+         # to unsupported forces relinking
+         hardcode_minus_L=yes
+         hardcode_libdir_flag_spec='-L$libdir'
+         hardcode_libdir_separator=
+         fi
+       esac
+       shared_flag='-shared'
+      else
+       # not using gcc
+       if test "$host_cpu" = ia64; then
+       # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+       # chokes on -Wl,-G. The following line is correct:
+         shared_flag='-G'
+       else
+       if test "$aix_use_runtimelinking" = yes; then
+           shared_flag='${wl}-G'
+         else
+           shared_flag='${wl}-bM:SRE'
+       fi
+       fi
+      fi
+
+      # It seems that -bexpall does not export symbols beginning with
+      # underscore (_), so it is better to generate a list of symbols to export.
+      always_export_symbols=yes
+      if test "$aix_use_runtimelinking" = yes; then
+       # Warning - without using the other runtime loading flags (-brtl),
+       # -berok will link without error, but may produce a broken library.
+       allow_undefined_flag='-berok'
+       # Determine the default libpath from the value encoded in an empty executable.
+       cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
+}'`
+# Check for a 64-bit object if we didn't find anything.
+if test -z "$aix_libpath"; then aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
+}'`; fi
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
+
+       hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
+       archive_expsym_cmds="\$CC"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then echo "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols $shared_flag"
+       else
+       if test "$host_cpu" = ia64; then
+         hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
+         allow_undefined_flag="-z nodefs"
+         archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"
+       else
+        # Determine the default libpath from the value encoded in an empty executable.
+        cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
+}'`
+# Check for a 64-bit object if we didn't find anything.
+if test -z "$aix_libpath"; then aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
+}'`; fi
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
+
+        hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
+         # Warning - without using the other run time loading flags,
+         # -berok will link without error, but may produce a broken library.
+         no_undefined_flag=' ${wl}-bernotok'
+         allow_undefined_flag=' ${wl}-berok'
+         # -bexpall does not export symbols beginning with underscore (_)
+         always_export_symbols=yes
+         # Exported symbols can be pulled into shared objects from archives
+         whole_archive_flag_spec=' '
+         archive_cmds_need_lc=yes
+         # This is similar to how AIX traditionally builds it's shared libraries.
+         archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bE:$export_symbols ${wl}-bnoentry${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
+       fi
+      fi
+      ;;
+
+    amigaos*)
+      archive_cmds='$rm $output_objdir/a2ixlibrary.data~$echo "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$echo "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$echo "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$echo "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_minus_L=yes
+      # see comment about different semantics on the GNU ld section
+      ld_shlibs=no
+      ;;
+
+    bsdi4*)
+      export_dynamic_flag_spec=-rdynamic
+      ;;
+
+    cygwin* | mingw* | pw32*)
+      # When not using gcc, we currently assume that we are using
+      # Microsoft Visual C++.
+      # hardcode_libdir_flag_spec is actually meaningless, as there is
+      # no search path for DLLs.
+      hardcode_libdir_flag_spec=' '
+      allow_undefined_flag=unsupported
+      # Tell ltmain to make .lib files, not .a files.
+      libext=lib
+      # Tell ltmain to make .dll files, not .so files.
+      shrext=".dll"
+      # FIXME: Setting linknames here is a bad hack.
+      archive_cmds='$CC -o $lib $libobjs $compiler_flags `echo "$deplibs" | $SED -e '\''s/ -lc$//'\''` -link -dll~linknames='
+      # The linker will automatically build a .lib file if we build a DLL.
+      old_archive_From_new_cmds='true'
+      # FIXME: Should let the user specify the lib program.
+      old_archive_cmds='lib /OUT:$oldlib$oldobjs$old_deplibs'
+      fix_srcfile_path='`cygpath -w "$srcfile"`'
+      enable_shared_with_static_runtimes=yes
+      ;;
+
+    darwin* | rhapsody*)
+    if $CC -v 2>&1 | grep 'Apple' >/dev/null ; then
+      archive_cmds_need_lc=no
+      case "$host_os" in
+      rhapsody* | darwin1.[012])
+       allow_undefined_flag='-undefined suppress'
+       ;;
+      *) # Darwin 1.3 on
+       test -z ${LD_TWOLEVEL_NAMESPACE} && allow_undefined_flag='-flat_namespace -undefined suppress'
+       ;;
+      esac
+      # FIXME: Relying on posixy $() will cause problems for
+      #        cross-compilation, but unfortunately the echo tests do not
+      #        yet detect zsh echo's removal of \ escapes.  Also zsh mangles
+      #               `"' quotes if we put them in here... so don't!
+       lt_int_apple_cc_single_mod=no
+       output_verbose_link_cmd='echo'
+       if $CC -dumpspecs 2>&1 | grep 'single_module' >/dev/null ; then
+         lt_int_apple_cc_single_mod=yes
+       fi
+       if test "X$lt_int_apple_cc_single_mod" = Xyes ; then
+         archive_cmds='$CC -dynamiclib -single_module $allow_undefined_flag -o $lib $libobjs $deplibs $compiler_flags -install_name $rpath/$soname $verstring'
+       else
+        archive_cmds='$CC -r ${wl}-bind_at_load -keep_private_externs -nostdlib -o ${lib}-master.o $libobjs~$CC -dynamiclib $allow_undefined_flag -o $lib ${lib}-master.o $deplibs $compiler_flags -install_name $rpath/$soname $verstring'
+      fi
+      module_cmds='$CC -bundle ${wl}-bind_at_load $allow_undefined_flag -o $lib $libobjs $deplibs$compiler_flags'
+      # Don't fix this by using the ld -exported_symbols_list flag, it doesn't exist in older darwin ld's
+        if test "X$lt_int_apple_cc_single_mod" = Xyes ; then
+          archive_expsym_cmds='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -dynamiclib -single_module $allow_undefined_flag -o $lib $libobjs $deplibs $compiler_flags -install_name $rpath/$soname $verstring~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
+        else
+          archive_expsym_cmds='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -r ${wl}-bind_at_load -keep_private_externs -nostdlib -o ${lib}-master.o $libobjs~$CC -dynamiclib $allow_undefined_flag -o $lib ${lib}-master.o $deplibs $compiler_flags -install_name $rpath/$soname $verstring~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
+        fi
+          module_expsym_cmds='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -bundle $allow_undefined_flag  -o $lib $libobjs $deplibs$compiler_flags~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
+      hardcode_direct=no
+      hardcode_automatic=yes
+      hardcode_shlibpath_var=unsupported
+      whole_archive_flag_spec='-all_load $convenience'
+      link_all_deplibs=yes
+    fi
+      ;;
+
+    dgux*)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_shlibpath_var=no
+      ;;
+
+    freebsd1*)
+      ld_shlibs=no
+      ;;
+
+    # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
+    # support.  Future versions do this automatically, but an explicit c++rt0.o
+    # does not break anything, and helps significantly (at the cost of a little
+    # extra space).
+    freebsd2.2*)
+      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    # Unfortunately, older versions of FreeBSD 2 do not have this feature.
+    freebsd2*)
+      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_direct=yes
+      hardcode_minus_L=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
+    freebsd*)
+      archive_cmds='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    hpux9*)
+      if test "$GCC" = yes; then
+       archive_cmds='$rm $output_objdir/$soname~$CC -shared -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+      else
+       archive_cmds='$rm $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+      fi
+      hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+      hardcode_libdir_separator=:
+      hardcode_direct=yes
+
+      # hardcode_minus_L: Not really in the search PATH,
+      # but as the default location of the library.
+      hardcode_minus_L=yes
+      export_dynamic_flag_spec='${wl}-E'
+      ;;
+
+    hpux10* | hpux11*)
+      if test "$GCC" = yes -a "$with_gnu_ld" = no; then
+       case "$host_cpu" in
+       hppa*64*|ia64*)
+         archive_cmds='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+         ;;
+       *)
+         archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+         ;;
+       esac
+      else
+       case "$host_cpu" in
+       hppa*64*|ia64*)
+         archive_cmds='$LD -b +h $soname -o $lib $libobjs $deplibs $linker_flags'
+         ;;
+       *)
+         archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
+         ;;
+       esac
+      fi
+      if test "$with_gnu_ld" = no; then
+       case "$host_cpu" in
+       hppa*64*)
+         hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+         hardcode_libdir_flag_spec_ld='+b $libdir'
+         hardcode_libdir_separator=:
+         hardcode_direct=no
+         hardcode_shlibpath_var=no
+         ;;
+       ia64*)
+         hardcode_libdir_flag_spec='-L$libdir'
+         hardcode_direct=no
+         hardcode_shlibpath_var=no
+
+         # hardcode_minus_L: Not really in the search PATH,
+         # but as the default location of the library.
+         hardcode_minus_L=yes
+         ;;
+       *)
+         hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+         hardcode_libdir_separator=:
+         hardcode_direct=yes
+         export_dynamic_flag_spec='${wl}-E'
+
+         # hardcode_minus_L: Not really in the search PATH,
+         # but as the default location of the library.
+         hardcode_minus_L=yes
+         ;;
+       esac
+      fi
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      if test "$GCC" = yes; then
+       archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+      else
+       archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${output_objdir}/so_locations -o $lib'
+       hardcode_libdir_flag_spec_ld='-rpath $libdir'
+      fi
+      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+      hardcode_libdir_separator=:
+      link_all_deplibs=yes
+      ;;
+
+    netbsd*)
+      if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
+       archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
+      else
+       archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
+      fi
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    newsos6)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_direct=yes
+      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+      hardcode_libdir_separator=:
+      hardcode_shlibpath_var=no
+      ;;
+
+    openbsd*)
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+       archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+       hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
+       export_dynamic_flag_spec='${wl}-E'
+      else
+       case $host_os in
+        openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*)
+          archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+          hardcode_libdir_flag_spec='-R$libdir'
+          ;;
+        *)
+          archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+          hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
+          ;;
+       esac
+      fi
+      ;;
+
+    os2*)
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_minus_L=yes
+      allow_undefined_flag=unsupported
+      archive_cmds='$echo "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$echo "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~$echo DATA >> $output_objdir/$libname.def~$echo " SINGLE NONSHARED" >> $output_objdir/$libname.def~$echo EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def'
+      old_archive_From_new_cmds='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
+      ;;
+
+    osf3*)
+      if test "$GCC" = yes; then
+       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
+       archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+      else
+       allow_undefined_flag=' -expect_unresolved \*'
+       archive_cmds='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${output_objdir}/so_locations -o $lib'
+      fi
+      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+      hardcode_libdir_separator=:
+      ;;
+
+    osf4* | osf5*)     # as osf3* with the addition of -msym flag
+      if test "$GCC" = yes; then
+       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
+       archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+       hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+      else
+       allow_undefined_flag=' -expect_unresolved \*'
+       archive_cmds='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -msym -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${output_objdir}/so_locations -o $lib'
+       archive_expsym_cmds='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; echo "-hidden">> $lib.exp~
+       $LD -shared${allow_undefined_flag} -input $lib.exp $linker_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib~$rm $lib.exp'
+
+       # Both c and cxx compiler support -rpath directly
+       hardcode_libdir_flag_spec='-rpath $libdir'
+      fi
+      hardcode_libdir_separator=:
+      ;;
+
+    sco3.2v5*)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_shlibpath_var=no
+      export_dynamic_flag_spec='${wl}-Bexport'
+      runpath_var=LD_RUN_PATH
+      hardcode_runpath_var=yes
+      ;;
+
+    solaris*)
+      no_undefined_flag=' -z text'
+      if test "$GCC" = yes; then
+       archive_cmds='$CC -shared ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+       archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+         $CC -shared ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$rm $lib.exp'
+      else
+       archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
+       archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+       $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
+      fi
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_shlibpath_var=no
+      case $host_os in
+      solaris2.[0-5] | solaris2.[0-5].*) ;;
+      *) # Supported since Solaris 2.6 (maybe 2.5.1?)
+       whole_archive_flag_spec='-z allextract$convenience -z defaultextract' ;;
+      esac
+      link_all_deplibs=yes
+      ;;
+
+    sunos4*)
+      if test "x$host_vendor" = xsequent; then
+       # Use $CC to link under sequent, because it throws in some extra .o
+       # files that make .init and .fini sections work.
+       archive_cmds='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+       archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_direct=yes
+      hardcode_minus_L=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    sysv4)
+      case $host_vendor in
+       sni)
+         archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+         hardcode_direct=yes # is this really true???
+       ;;
+       siemens)
+         ## LD is ld it makes a PLAMLIB
+         ## CC just makes a GrossModule.
+         archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
+         reload_cmds='$CC -r -o $output$reload_objs'
+         hardcode_direct=no
+        ;;
+       motorola)
+         archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+         hardcode_direct=no #Motorola manual says yes, but my tests say they lie
+       ;;
+      esac
+      runpath_var='LD_RUN_PATH'
+      hardcode_shlibpath_var=no
+      ;;
+
+    sysv4.3*)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_shlibpath_var=no
+      export_dynamic_flag_spec='-Bexport'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+       archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+       hardcode_shlibpath_var=no
+       runpath_var=LD_RUN_PATH
+       hardcode_runpath_var=yes
+       ld_shlibs=yes
+      fi
+      ;;
+
+    sysv4.2uw2*)
+      archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_direct=yes
+      hardcode_minus_L=no
+      hardcode_shlibpath_var=no
+      hardcode_runpath_var=yes
+      runpath_var=LD_RUN_PATH
+      ;;
+
+   sysv5OpenUNIX8* | sysv5UnixWare7* |  sysv5uw[78]* | unixware7*)
+      no_undefined_flag='${wl}-z ${wl}text'
+      if test "$GCC" = yes; then
+       archive_cmds='$CC -shared ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+       archive_cmds='$CC -G ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      runpath_var='LD_RUN_PATH'
+      hardcode_shlibpath_var=no
+      ;;
+
+    sysv5*)
+      no_undefined_flag=' -z text'
+      # $CC -shared without GNU ld will not create a library from C++
+      # object files and a static libstdc++, better avoid it by now
+      archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+               $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
+      hardcode_libdir_flag_spec=
+      hardcode_shlibpath_var=no
+      runpath_var='LD_RUN_PATH'
+      ;;
+
+    uts4*)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_shlibpath_var=no
+      ;;
+
+    *)
+      ld_shlibs=no
+      ;;
+    esac
+  fi
+
+echo "$as_me:$LINENO: result: $ld_shlibs" >&5
+echo "${ECHO_T}$ld_shlibs" >&6
+test "$ld_shlibs" = no && can_build_shared=no
+
+variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
+if test "$GCC" = yes; then
+  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+fi
+
+#
+# Do we need to explicitly link libc?
+#
+case "x$archive_cmds_need_lc" in
+x|xyes)
+  # Assume -lc should be added
+  archive_cmds_need_lc=yes
+
+  if test "$enable_shared" = yes && test "$GCC" = yes; then
+    case $archive_cmds in
+    *'~'*)
+      # FIXME: we may have to deal with multi-command sequences.
+      ;;
+    '$CC '*)
+      # Test whether the compiler implicitly links with -lc since on some
+      # systems, -lgcc has to come before -lc. If gcc already passes -lc
+      # to ld, don't add -lc before -lgcc.
+      echo "$as_me:$LINENO: checking whether -lc should be explicitly linked in" >&5
+echo $ECHO_N "checking whether -lc should be explicitly linked in... $ECHO_C" >&6
+      $rm conftest*
+      printf "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+      if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } 2>conftest.err; then
+        soname=conftest
+        lib=conftest
+        libobjs=conftest.$ac_objext
+        deplibs=
+        wl=$lt_prog_compiler_wl
+        compiler_flags=-v
+        linker_flags=-v
+        verstring=
+        output_objdir=.
+        libname=conftest
+        lt_save_allow_undefined_flag=$allow_undefined_flag
+        allow_undefined_flag=
+        if { (eval echo "$as_me:$LINENO: \"$archive_cmds 2\>\&1 \| grep \" -lc \" \>/dev/null 2\>\&1\"") >&5
+  (eval $archive_cmds 2\>\&1 \| grep \" -lc \" \>/dev/null 2\>\&1) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+        then
+         archive_cmds_need_lc=no
+        else
+         archive_cmds_need_lc=yes
+        fi
+        allow_undefined_flag=$lt_save_allow_undefined_flag
+      else
+        cat conftest.err 1>&5
+      fi
+      $rm conftest*
+      echo "$as_me:$LINENO: result: $archive_cmds_need_lc" >&5
+echo "${ECHO_T}$archive_cmds_need_lc" >&6
+      ;;
+    esac
+  fi
+  ;;
+esac
+
+echo "$as_me:$LINENO: checking how to hardcode library paths into programs" >&5
+echo $ECHO_N "checking how to hardcode library paths into programs... $ECHO_C" >&6
+hardcode_action=
+if test -n "$hardcode_libdir_flag_spec" || \
+   test -n "$runpath_var " || \
+   test "X$hardcode_automatic"="Xyes" ; then
+
+  # We can hardcode non-existant directories.
+  if test "$hardcode_direct" != no &&
+     # If the only mechanism to avoid hardcoding is shlibpath_var, we
+     # have to relink, otherwise we might link with an installed library
+     # when we should be linking with a yet-to-be-installed one
+     ## test "$_LT_AC_TAGVAR(hardcode_shlibpath_var, )" != no &&
+     test "$hardcode_minus_L" != no; then
+    # Linking always hardcodes the temporary library directory.
+    hardcode_action=relink
+  else
+    # We can link without hardcoding, and we can hardcode nonexisting dirs.
+    hardcode_action=immediate
+  fi
+else
+  # We cannot hardcode anything, or else we can only hardcode existing
+  # directories.
+  hardcode_action=unsupported
+fi
+echo "$as_me:$LINENO: result: $hardcode_action" >&5
+echo "${ECHO_T}$hardcode_action" >&6
+
+if test "$hardcode_action" = relink; then
+  # Fast installation is not supported
+  enable_fast_install=no
+elif test "$shlibpath_overrides_runpath" = yes ||
+     test "$enable_shared" = no; then
+  # Fast installation is not necessary
+  enable_fast_install=needless
+fi
+
+striplib=
+old_striplib=
+echo "$as_me:$LINENO: checking whether stripping libraries is possible" >&5
+echo $ECHO_N "checking whether stripping libraries is possible... $ECHO_C" >&6
+if test -n "$STRIP" && $STRIP -V 2>&1 | grep "GNU strip" >/dev/null; then
+  test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
+  test -z "$striplib" && striplib="$STRIP --strip-unneeded"
+  echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+# FIXME - insert some real tests, host_os isn't really good enough
+  case $host_os in
+   darwin*)
+       if test -n "$STRIP" ; then
+         striplib="$STRIP -x"
+         echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+       else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+       ;;
+   *)
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+    ;;
+  esac
+fi
+
+echo "$as_me:$LINENO: checking dynamic linker characteristics" >&5
+echo $ECHO_N "checking dynamic linker characteristics... $ECHO_C" >&6
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+shrext=".so"
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+if test "$GCC" = yes; then
+  sys_lib_search_path_spec=`$CC -print-search-dirs | grep "^libraries:" | $SED -e "s/^libraries://" -e "s,=/,/,g"`
+  if echo "$sys_lib_search_path_spec" | grep ';' >/dev/null ; then
+    # if the path contains ";" then we assume it to be the separator
+    # otherwise default to the standard path separator (i.e. ":") - it is
+    # assumed that no part of a normal pathname contains ";" but that should
+    # okay in the real world where ";" in dirpaths is itself problematic.
+    sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+  else
+    sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED  -e "s/$PATH_SEPARATOR/ /g"`
+  fi
+else
+  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+fi
+need_lib_prefix=unknown
+hardcode_into_libs=no
+
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+need_version=unknown
+
+case $host_os in
+aix3*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
+  shlibpath_var=LIBPATH
+
+  # AIX 3 has no versioning support, so we append a major version to the name.
+  soname_spec='${libname}${release}${shared_ext}$major'
+  ;;
+
+aix4* | aix5*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  hardcode_into_libs=yes
+  if test "$host_cpu" = ia64; then
+    # AIX 5 supports IA64
+    library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}'
+    shlibpath_var=LD_LIBRARY_PATH
+  else
+    # With GCC up to 2.95.x, collect2 would create an import file
+    # for dependence libraries.  The import file would start with
+    # the line `#! .'.  This would cause the generated library to
+    # depend on `.', always an invalid library.  This was fixed in
+    # development snapshots of GCC prior to 3.0.
+    case $host_os in
+      aix4 | aix4.[01] | aix4.[01].*)
+      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
+          echo ' yes '
+          echo '#endif'; } | ${CC} -E - | grep yes > /dev/null; then
+       :
+      else
+       can_build_shared=no
+      fi
+      ;;
+    esac
+    # AIX (on Power*) has no versioning support, so currently we can not hardcode correct
+    # soname into executable. Probably we can add versioning support to
+    # collect2, so additional links can be useful in future.
+    if test "$aix_use_runtimelinking" = yes; then
+      # If using run time linking (on AIX 4.2 or later) use lib<name>.so
+      # instead of lib<name>.a to let people know that these are not
+      # typical AIX shared libraries.
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    else
+      # We preserve .a as extension for shared libraries through AIX4.2
+      # and later when we are not doing run time linking.
+      library_names_spec='${libname}${release}.a $libname.a'
+      soname_spec='${libname}${release}${shared_ext}$major'
+    fi
+    shlibpath_var=LIBPATH
+  fi
+  ;;
+
+amigaos*)
+  library_names_spec='$libname.ixlibrary $libname.a'
+  # Create ${libname}_ixlibrary.a entries in /sys/libs.
+  finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`$echo "X$lib" | $Xsed -e '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; test $rm /sys/libs/${libname}_ixlibrary.a; $show "(cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a)"; (cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a) || exit 1; done'
+  ;;
+
+beos*)
+  library_names_spec='${libname}${shared_ext}'
+  dynamic_linker="$host_os ld.so"
+  shlibpath_var=LIBRARY_PATH
+  ;;
+
+bsdi4*)
+  version_type=linux
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+  # the default ld.so.conf also contains /usr/contrib/lib and
+  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+  # libtool to hard-code these into programs
+  ;;
+
+cygwin* | mingw* | pw32*)
+  version_type=windows
+  shrext=".dll"
+  need_version=no
+  need_lib_prefix=no
+
+  case $GCC,$host_os in
+  yes,cygwin* | yes,mingw* | yes,pw32*)
+    library_names_spec='$libname.dll.a'
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \${file}`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i;echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $rm \$dlpath'
+    shlibpath_overrides_runpath=yes
+
+    case $host_os in
+    cygwin*)
+      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
+      soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+      sys_lib_search_path_spec="/lib /lib/w32api /usr/lib /usr/local/lib"
+      ;;
+    mingw*)
+      # MinGW DLLs use traditional 'lib' prefix
+      soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+      sys_lib_search_path_spec=`$CC -print-search-dirs | grep "^libraries:" | $SED -e "s/^libraries://" -e "s,=/,/,g"`
+      if echo "$sys_lib_search_path_spec" | grep ';[c-zC-Z]:/' >/dev/null; then
+        # It is most probably a Windows format PATH printed by
+        # mingw gcc, but we are running on Cygwin. Gcc prints its search
+        # path with ; separators, and with drive letters. We can handle the
+        # drive letters (cygwin fileutils understands them), so leave them,
+        # especially as we might pass files found there to a mingw objdump,
+        # which wouldn't understand a cygwinified path. Ahh.
+        sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+      else
+        sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED  -e "s/$PATH_SEPARATOR/ /g"`
+      fi
+      ;;
+    pw32*)
+      # pw32 DLLs use 'pw' prefix rather than 'lib'
+      library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/./-/g'`${versuffix}${shared_ext}'
+      ;;
+    esac
+    ;;
+
+  *)
+    library_names_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext} $libname.lib'
+    ;;
+  esac
+  dynamic_linker='Win32 ld.exe'
+  # FIXME: first we should search . and the directory the executable is in
+  shlibpath_var=PATH
+  ;;
+
+darwin* | rhapsody*)
+  dynamic_linker="$host_os dyld"
+  version_type=darwin
+  need_lib_prefix=no
+  need_version=no
+  # FIXME: Relying on posixy $() will cause problems for
+  #        cross-compilation, but unfortunately the echo tests do not
+  #        yet detect zsh echo's removal of \ escapes.
+  library_names_spec='${libname}${release}${versuffix}$shared_ext ${libname}${release}${major}$shared_ext ${libname}$shared_ext'
+  soname_spec='${libname}${release}${major}$shared_ext'
+  shlibpath_overrides_runpath=yes
+  shlibpath_var=DYLD_LIBRARY_PATH
+  shrext='$(test .$module = .yes && echo .so || echo .dylib)'
+  # Apple's gcc prints 'gcc -print-search-dirs' doesn't operate the same.
+  if $CC -v 2>&1 | grep 'Apple' >/dev/null ; then
+  sys_lib_search_path_spec=`$CC -print-search-dirs | tr "\n" "$PATH_SEPARATOR" | sed -e 's/libraries:/@libraries:/' | tr "@" "\n" | grep "^libraries:" | sed -e "s/^libraries://" -e "s,=/,/,g" -e "s,$PATH_SEPARATOR, ,g" -e "s,.*,& /lib /usr/lib /usr/local/lib,g"`
+  fi
+  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
+  ;;
+
+dgux*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+freebsd1*)
+  dynamic_linker=no
+  ;;
+
+freebsd*)
+  objformat=`test -x /usr/bin/objformat && /usr/bin/objformat || echo aout`
+  version_type=freebsd-$objformat
+  case $version_type in
+    freebsd-elf*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
+      need_version=no
+      need_lib_prefix=no
+      ;;
+    freebsd-*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix'
+      need_version=yes
+      ;;
+  esac
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_os in
+  freebsd2*)
+    shlibpath_overrides_runpath=yes
+    ;;
+  freebsd3.01* | freebsdelf3.01*)
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  *) # from 3.2 on
+    shlibpath_overrides_runpath=no
+    hardcode_into_libs=yes
+    ;;
+  esac
+  ;;
+
+gnu*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  hardcode_into_libs=yes
+  ;;
+
+hpux9* | hpux10* | hpux11*)
+  # Give a soname corresponding to the major version so that dld.sl refuses to
+  # link against other versions.
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  case "$host_cpu" in
+  ia64*)
+    shrext='.so'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.so"
+    shlibpath_var=LD_LIBRARY_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    if test "X$HPUX_IA64_MODE" = X32; then
+      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+    else
+      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+    fi
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+   hppa*64*)
+     shrext='.sl'
+     hardcode_into_libs=yes
+     dynamic_linker="$host_os dld.sl"
+     shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
+     shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+     library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+     soname_spec='${libname}${release}${shared_ext}$major'
+     sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
+     sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+     ;;
+   *)
+    shrext='.sl'
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=SHLIB_PATH
+    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    ;;
+  esac
+  # HP-UX runs *really* slowly unless shared libraries are mode 555.
+  postinstall_cmds='chmod 555 $lib'
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $host_os in
+    nonstopux*) version_type=nonstopux ;;
+    *)
+       if test "$lt_cv_prog_gnu_ld" = yes; then
+               version_type=linux
+       else
+               version_type=irix
+       fi ;;
+  esac
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}'
+  case $host_os in
+  irix5* | nonstopux*)
+    libsuff= shlibsuff=
+    ;;
+  *)
+    case $LD in # libtool.m4 will add one of these switches to LD
+    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
+      libsuff= shlibsuff= libmagic=32-bit;;
+    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
+      libsuff=32 shlibsuff=N32 libmagic=N32;;
+    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
+      libsuff=64 shlibsuff=64 libmagic=64-bit;;
+    *) libsuff= shlibsuff= libmagic=never-match;;
+    esac
+    ;;
+  esac
+  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
+  sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
+  hardcode_into_libs=yes
+  ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux*oldld* | linux*aout* | linux*coff*)
+  dynamic_linker=no
+  ;;
+
+# This must be Linux ELF.
+linux*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  # We used to test for /lib/ld.so.1 and disable shared libraries on
+  # powerpc, because MkLinux only supported shared libraries with the
+  # GNU dynamic linker.  Since this was broken with cross compilers,
+  # most powerpc-linux boxes support dynamic linking these days and
+  # people can always --disable-shared, the test was removed, and we
+  # assume the GNU/Linux dynamic linker is in use.
+  dynamic_linker='GNU/Linux ld.so'
+
+  # Find out which ABI we are using (multilib Linux x86_64 hack).
+  libsuff=
+  case "$host_cpu" in
+  x86_64*|s390x*)
+    echo '#line 7676 "configure"' > conftest.$ac_ext
+    if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; then
+      case `/usr/bin/file conftest.$ac_objext` in
+      *64-bit*)
+        libsuff=64
+        ;;
+      esac
+    fi
+    rm -rf conftest*
+    ;;
+  *)
+    ;;
+  esac
+  sys_lib_dlsearch_path_spec="/lib${libsuff} /usr/lib${libsuff}"
+  sys_lib_search_path_spec="/lib${libsuff} /usr/lib${libsuff} /usr/local/lib${libsuff}"
+  ;;
+
+netbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+    dynamic_linker='NetBSD (a.out) ld.so'
+  else
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} ${libname}${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    dynamic_linker='NetBSD ld.elf_so'
+  fi
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  ;;
+
+newsos6)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+nto-qnx)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+openbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+    case $host_os in
+      openbsd2.[89] | openbsd2.[89].*)
+       shlibpath_overrides_runpath=no
+       ;;
+      *)
+       shlibpath_overrides_runpath=yes
+       ;;
+      esac
+  else
+    shlibpath_overrides_runpath=yes
+  fi
+  ;;
+
+os2*)
+  libname_spec='$name'
+  shrext=".dll"
+  need_lib_prefix=no
+  library_names_spec='$libname${shared_ext} $libname.a'
+  dynamic_linker='OS/2 ld.exe'
+  shlibpath_var=LIBPATH
+  ;;
+
+osf3* | osf4* | osf5*)
+  version_type=osf
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+  sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
+  ;;
+
+sco3.2v5*)
+  version_type=osf
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+solaris*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  # ldd complains unless libraries are executable
+  postinstall_cmds='chmod +x $lib'
+  ;;
+
+sunos4*)
+  version_type=sunos
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  if test "$with_gnu_ld" = yes; then
+    need_lib_prefix=no
+  fi
+  need_version=yes
+  ;;
+
+sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_vendor in
+    sni)
+      shlibpath_overrides_runpath=no
+      need_lib_prefix=no
+      export_dynamic_flag_spec='${wl}-Blargedynsym'
+      runpath_var=LD_RUN_PATH
+      ;;
+    siemens)
+      need_lib_prefix=no
+      ;;
+    motorola)
+      need_lib_prefix=no
+      need_version=no
+      shlibpath_overrides_runpath=no
+      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+      ;;
+  esac
+  ;;
+
+sysv4*MP*)
+  if test -d /usr/nec ;then
+    version_type=linux
+    library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
+    soname_spec='$libname${shared_ext}.$major'
+    shlibpath_var=LD_LIBRARY_PATH
+  fi
+  ;;
+
+uts4*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+*)
+  dynamic_linker=no
+  ;;
+esac
+echo "$as_me:$LINENO: result: $dynamic_linker" >&5
+echo "${ECHO_T}$dynamic_linker" >&6
+test "$dynamic_linker" = no && can_build_shared=no
+
+if test "x$enable_dlopen" != xyes; then
+  enable_dlopen=unknown
+  enable_dlopen_self=unknown
+  enable_dlopen_self_static=unknown
+else
+  lt_cv_dlopen=no
+  lt_cv_dlopen_libs=
+
+  case $host_os in
+  beos*)
+    lt_cv_dlopen="load_add_on"
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+    ;;
+
+  mingw* | pw32*)
+    lt_cv_dlopen="LoadLibrary"
+    lt_cv_dlopen_libs=
+   ;;
+
+  cygwin*)
+    lt_cv_dlopen="dlopen"
+    lt_cv_dlopen_libs=
+   ;;
+
+  darwin*)
+  # if libdl is installed we need to link against it
+    echo "$as_me:$LINENO: checking for dlopen in -ldl" >&5
+echo $ECHO_N "checking for dlopen in -ldl... $ECHO_C" >&6
+if test "${ac_cv_lib_dl_dlopen+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char dlopen ();
+int
+main ()
+{
+dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_dl_dlopen=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_dl_dlopen=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_dl_dlopen" >&5
+echo "${ECHO_T}$ac_cv_lib_dl_dlopen" >&6
+if test $ac_cv_lib_dl_dlopen = yes; then
+  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"
+else
+
+    lt_cv_dlopen="dyld"
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+
+fi
+
+   ;;
+
+  *)
+    echo "$as_me:$LINENO: checking for shl_load" >&5
+echo $ECHO_N "checking for shl_load... $ECHO_C" >&6
+if test "${ac_cv_func_shl_load+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char shl_load (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char shl_load ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_shl_load) || defined (__stub___shl_load)
+choke me
+#else
+char (*f) () = shl_load;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != shl_load;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_func_shl_load=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_func_shl_load=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_shl_load" >&5
+echo "${ECHO_T}$ac_cv_func_shl_load" >&6
+if test $ac_cv_func_shl_load = yes; then
+  lt_cv_dlopen="shl_load"
+else
+  echo "$as_me:$LINENO: checking for shl_load in -ldld" >&5
+echo $ECHO_N "checking for shl_load in -ldld... $ECHO_C" >&6
+if test "${ac_cv_lib_dld_shl_load+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldld  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char shl_load ();
+int
+main ()
+{
+shl_load ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_dld_shl_load=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_dld_shl_load=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_dld_shl_load" >&5
+echo "${ECHO_T}$ac_cv_lib_dld_shl_load" >&6
+if test $ac_cv_lib_dld_shl_load = yes; then
+  lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-dld"
+else
+  echo "$as_me:$LINENO: checking for dlopen" >&5
+echo $ECHO_N "checking for dlopen... $ECHO_C" >&6
+if test "${ac_cv_func_dlopen+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char dlopen (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char dlopen ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_dlopen) || defined (__stub___dlopen)
+choke me
+#else
+char (*f) () = dlopen;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != dlopen;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_func_dlopen=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_func_dlopen=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_dlopen" >&5
+echo "${ECHO_T}$ac_cv_func_dlopen" >&6
+if test $ac_cv_func_dlopen = yes; then
+  lt_cv_dlopen="dlopen"
+else
+  echo "$as_me:$LINENO: checking for dlopen in -ldl" >&5
+echo $ECHO_N "checking for dlopen in -ldl... $ECHO_C" >&6
+if test "${ac_cv_lib_dl_dlopen+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char dlopen ();
+int
+main ()
+{
+dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_dl_dlopen=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_dl_dlopen=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_dl_dlopen" >&5
+echo "${ECHO_T}$ac_cv_lib_dl_dlopen" >&6
+if test $ac_cv_lib_dl_dlopen = yes; then
+  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"
+else
+  echo "$as_me:$LINENO: checking for dlopen in -lsvld" >&5
+echo $ECHO_N "checking for dlopen in -lsvld... $ECHO_C" >&6
+if test "${ac_cv_lib_svld_dlopen+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lsvld  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char dlopen ();
+int
+main ()
+{
+dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_svld_dlopen=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_svld_dlopen=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_svld_dlopen" >&5
+echo "${ECHO_T}$ac_cv_lib_svld_dlopen" >&6
+if test $ac_cv_lib_svld_dlopen = yes; then
+  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld"
+else
+  echo "$as_me:$LINENO: checking for dld_link in -ldld" >&5
+echo $ECHO_N "checking for dld_link in -ldld... $ECHO_C" >&6
+if test "${ac_cv_lib_dld_dld_link+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldld  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char dld_link ();
+int
+main ()
+{
+dld_link ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_dld_dld_link=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_dld_dld_link=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_dld_dld_link" >&5
+echo "${ECHO_T}$ac_cv_lib_dld_dld_link" >&6
+if test $ac_cv_lib_dld_dld_link = yes; then
+  lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-dld"
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+    ;;
+  esac
+
+  if test "x$lt_cv_dlopen" != xno; then
+    enable_dlopen=yes
+  else
+    enable_dlopen=no
+  fi
+
+  case $lt_cv_dlopen in
+  dlopen)
+    save_CPPFLAGS="$CPPFLAGS"
+    test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
+
+    save_LDFLAGS="$LDFLAGS"
+    eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
+
+    save_LIBS="$LIBS"
+    LIBS="$lt_cv_dlopen_libs $LIBS"
+
+    echo "$as_me:$LINENO: checking whether a program can dlopen itself" >&5
+echo $ECHO_N "checking whether a program can dlopen itself... $ECHO_C" >&6
+if test "${lt_cv_dlopen_self+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+         if test "$cross_compiling" = yes; then :
+  lt_cv_dlopen_self=cross
+else
+  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+  lt_status=$lt_dlunknown
+  cat > conftest.$ac_ext <<EOF
+#line 8372 "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+#  define LT_DLGLOBAL          RTLD_GLOBAL
+#else
+#  ifdef DL_GLOBAL
+#    define LT_DLGLOBAL                DL_GLOBAL
+#  else
+#    define LT_DLGLOBAL                0
+#  endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+#  ifdef RTLD_LAZY
+#    define LT_DLLAZY_OR_NOW           RTLD_LAZY
+#  else
+#    ifdef DL_LAZY
+#      define LT_DLLAZY_OR_NOW         DL_LAZY
+#    else
+#      ifdef RTLD_NOW
+#        define LT_DLLAZY_OR_NOW       RTLD_NOW
+#      else
+#        ifdef DL_NOW
+#          define LT_DLLAZY_OR_NOW     DL_NOW
+#        else
+#          define LT_DLLAZY_OR_NOW     0
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+#ifdef __cplusplus
+extern "C" void exit (int);
+#endif
+
+void fnord() { int i=42;}
+int main ()
+{
+  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+  int status = $lt_dlunknown;
+
+  if (self)
+    {
+      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
+      else if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;
+      /* dlclose (self); */
+    }
+
+    exit (status);
+}
+EOF
+  if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && test -s conftest${ac_exeext} 2>/dev/null; then
+    (./conftest; exit; ) 2>/dev/null
+    lt_status=$?
+    case x$lt_status in
+      x$lt_dlno_uscore) lt_cv_dlopen_self=yes ;;
+      x$lt_dlneed_uscore) lt_cv_dlopen_self=yes ;;
+      x$lt_unknown|x*) lt_cv_dlopen_self=no ;;
+    esac
+  else :
+    # compilation failed
+    lt_cv_dlopen_self=no
+  fi
+fi
+rm -fr conftest*
+
+
+fi
+echo "$as_me:$LINENO: result: $lt_cv_dlopen_self" >&5
+echo "${ECHO_T}$lt_cv_dlopen_self" >&6
+
+    if test "x$lt_cv_dlopen_self" = xyes; then
+      LDFLAGS="$LDFLAGS $link_static_flag"
+      echo "$as_me:$LINENO: checking whether a statically linked program can dlopen itself" >&5
+echo $ECHO_N "checking whether a statically linked program can dlopen itself... $ECHO_C" >&6
+if test "${lt_cv_dlopen_self_static+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+         if test "$cross_compiling" = yes; then :
+  lt_cv_dlopen_self_static=cross
+else
+  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+  lt_status=$lt_dlunknown
+  cat > conftest.$ac_ext <<EOF
+#line 8470 "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+#  define LT_DLGLOBAL          RTLD_GLOBAL
+#else
+#  ifdef DL_GLOBAL
+#    define LT_DLGLOBAL                DL_GLOBAL
+#  else
+#    define LT_DLGLOBAL                0
+#  endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+#  ifdef RTLD_LAZY
+#    define LT_DLLAZY_OR_NOW           RTLD_LAZY
+#  else
+#    ifdef DL_LAZY
+#      define LT_DLLAZY_OR_NOW         DL_LAZY
+#    else
+#      ifdef RTLD_NOW
+#        define LT_DLLAZY_OR_NOW       RTLD_NOW
+#      else
+#        ifdef DL_NOW
+#          define LT_DLLAZY_OR_NOW     DL_NOW
+#        else
+#          define LT_DLLAZY_OR_NOW     0
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+#ifdef __cplusplus
+extern "C" void exit (int);
+#endif
+
+void fnord() { int i=42;}
+int main ()
+{
+  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+  int status = $lt_dlunknown;
+
+  if (self)
+    {
+      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
+      else if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;
+      /* dlclose (self); */
+    }
+
+    exit (status);
+}
+EOF
+  if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && test -s conftest${ac_exeext} 2>/dev/null; then
+    (./conftest; exit; ) 2>/dev/null
+    lt_status=$?
+    case x$lt_status in
+      x$lt_dlno_uscore) lt_cv_dlopen_self_static=yes ;;
+      x$lt_dlneed_uscore) lt_cv_dlopen_self_static=yes ;;
+      x$lt_unknown|x*) lt_cv_dlopen_self_static=no ;;
+    esac
+  else :
+    # compilation failed
+    lt_cv_dlopen_self_static=no
+  fi
+fi
+rm -fr conftest*
+
+
+fi
+echo "$as_me:$LINENO: result: $lt_cv_dlopen_self_static" >&5
+echo "${ECHO_T}$lt_cv_dlopen_self_static" >&6
+    fi
+
+    CPPFLAGS="$save_CPPFLAGS"
+    LDFLAGS="$save_LDFLAGS"
+    LIBS="$save_LIBS"
+    ;;
+  esac
+
+  case $lt_cv_dlopen_self in
+  yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
+  *) enable_dlopen_self=unknown ;;
+  esac
+
+  case $lt_cv_dlopen_self_static in
+  yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
+  *) enable_dlopen_self_static=unknown ;;
+  esac
+fi
+
+
+# Report which librarie types wil actually be built
+echo "$as_me:$LINENO: checking if libtool supports shared libraries" >&5
+echo $ECHO_N "checking if libtool supports shared libraries... $ECHO_C" >&6
+echo "$as_me:$LINENO: result: $can_build_shared" >&5
+echo "${ECHO_T}$can_build_shared" >&6
+
+echo "$as_me:$LINENO: checking whether to build shared libraries" >&5
+echo $ECHO_N "checking whether to build shared libraries... $ECHO_C" >&6
+test "$can_build_shared" = "no" && enable_shared=no
+
+# On AIX, shared libraries and static libraries use the same namespace, and
+# are all built from PIC.
+case "$host_os" in
+aix3*)
+  test "$enable_shared" = yes && enable_static=no
+  if test -n "$RANLIB"; then
+    archive_cmds="$archive_cmds~\$RANLIB \$lib"
+    postinstall_cmds='$RANLIB $lib'
+  fi
+  ;;
+
+aix4*)
+  if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
+    test "$enable_shared" = yes && enable_static=no
+  fi
+  ;;
+  darwin* | rhapsody*)
+  if $CC -v 2>&1 | grep 'Apple' >/dev/null ; then
+    archive_cmds_need_lc=no
+    case "$host_os" in
+    rhapsody* | darwin1.[012])
+      allow_undefined_flag='-undefined suppress'
+      ;;
+    *) # Darwin 1.3 on
+      test -z ${LD_TWOLEVEL_NAMESPACE} && allow_undefined_flag='-flat_namespace -undefined suppress'
+      ;;
+    esac
+    # FIXME: Relying on posixy $() will cause problems for
+    #        cross-compilation, but unfortunately the echo tests do not
+    #        yet detect zsh echo's removal of \ escapes.  Also zsh mangles
+    #         `"' quotes if we put them in here... so don't!
+               output_verbose_link_cmd='echo'
+    archive_cmds='$CC -dynamiclib $allow_undefined_flag -o $lib $libobjs $deplibs$compiler_flags -install_name $rpath/$soname $verstring'
+    module_cmds='$CC -bundle $allow_undefined_flag -o $lib $libobjs $deplibs$compiler_flags'
+    # Don't fix this by using the ld -exported_symbols_list flag, it doesn't exist in older darwin ld's
+                 archive_expsym_cmds='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -dynamiclib $allow_undefined_flag  -o $lib $libobjs $deplibs$compiler_flags -install_name $rpath/$soname $verstring~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
+                 module_expsym_cmds='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -bundle $allow_undefined_flag  -o $lib $libobjs $deplibs$compiler_flags~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
+    hardcode_direct=no
+    hardcode_automatic=yes
+    hardcode_shlibpath_var=unsupported
+    whole_archive_flag_spec='-all_load $convenience'
+    link_all_deplibs=yes
+    fi
+    ;;
+esac
+echo "$as_me:$LINENO: result: $enable_shared" >&5
+echo "${ECHO_T}$enable_shared" >&6
+
+echo "$as_me:$LINENO: checking whether to build static libraries" >&5
+echo $ECHO_N "checking whether to build static libraries... $ECHO_C" >&6
+# Make sure either enable_shared or enable_static is yes.
+test "$enable_shared" = yes || enable_static=yes
+echo "$as_me:$LINENO: result: $enable_static" >&5
+echo "${ECHO_T}$enable_static" >&6
+
+# The else clause should only fire when bootstrapping the
+# libtool distribution, otherwise you forgot to ship ltmain.sh
+# with your package, and you will get complaints that there are
+# no rules to generate ltmain.sh.
+if test -f "$ltmain"; then
+  # See if we are running on zsh, and set the options which allow our commands through
+  # without removal of \ escapes.
+  if test -n "${ZSH_VERSION+set}" ; then
+    setopt NO_GLOB_SUBST
+  fi
+  # Now quote all the things that may contain metacharacters while being
+  # careful not to overquote the AC_SUBSTed values.  We take copies of the
+  # variables and quote the copies for generation of the libtool script.
+  for var in echo old_CC old_CFLAGS AR AR_FLAGS EGREP RANLIB LN_S LTCC NM SED SHELL \
+    libname_spec library_names_spec soname_spec extract_expsyms_cmds \
+    old_striplib striplib file_magic_cmd finish_cmds finish_eval \
+    deplibs_check_method reload_flag reload_cmds need_locks \
+    lt_cv_sys_global_symbol_pipe lt_cv_sys_global_symbol_to_cdecl \
+    lt_cv_sys_global_symbol_to_c_name_address \
+    sys_lib_search_path_spec sys_lib_dlsearch_path_spec \
+    old_postinstall_cmds old_postuninstall_cmds \
+    compiler \
+    CC \
+    LD \
+    lt_prog_compiler_wl \
+    lt_prog_compiler_pic \
+    lt_prog_compiler_static \
+    lt_prog_compiler_no_builtin_flag \
+    export_dynamic_flag_spec \
+    thread_safe_flag_spec \
+    whole_archive_flag_spec \
+    enable_shared_with_static_runtimes \
+    old_archive_cmds \
+    old_archive_from_new_cmds \
+    predep_objects \
+    postdep_objects \
+    predeps \
+    postdeps \
+    compiler_lib_search_path \
+    archive_cmds \
+    archive_expsym_cmds \
+    postinstall_cmds \
+    postuninstall_cmds \
+    old_archive_from_expsyms_cmds \
+    allow_undefined_flag \
+    no_undefined_flag \
+    export_symbols_cmds \
+    hardcode_libdir_flag_spec \
+    hardcode_libdir_flag_spec_ld \
+    hardcode_libdir_separator \
+    hardcode_automatic \
+    module_cmds \
+    module_expsym_cmds \
+    lt_cv_prog_compiler_c_o \
+    exclude_expsyms \
+    include_expsyms; do
+
+    case $var in
+    old_archive_cmds | \
+    old_archive_from_new_cmds | \
+    archive_cmds | \
+    archive_expsym_cmds | \
+    module_cmds | \
+    module_expsym_cmds | \
+    old_archive_from_expsyms_cmds | \
+    export_symbols_cmds | \
+    extract_expsyms_cmds | reload_cmds | finish_cmds | \
+    postinstall_cmds | postuninstall_cmds | \
+    old_postinstall_cmds | old_postuninstall_cmds | \
+    sys_lib_search_path_spec | sys_lib_dlsearch_path_spec)
+      # Double-quote double-evaled strings.
+      eval "lt_$var=\\\"\`\$echo \"X\$$var\" | \$Xsed -e \"\$double_quote_subst\" -e \"\$sed_quote_subst\" -e \"\$delay_variable_subst\"\`\\\""
+      ;;
+    *)
+      eval "lt_$var=\\\"\`\$echo \"X\$$var\" | \$Xsed -e \"\$sed_quote_subst\"\`\\\""
+      ;;
+    esac
+  done
+
+  case $lt_echo in
+  *'\$0 --fallback-echo"')
+    lt_echo=`$echo "X$lt_echo" | $Xsed -e 's/\\\\\\\$0 --fallback-echo"$/$0 --fallback-echo"/'`
+    ;;
+  esac
+
+cfgfile="${ofile}T"
+  trap "$rm \"$cfgfile\"; exit 1" 1 2 15
+  $rm -f "$cfgfile"
+  { echo "$as_me:$LINENO: creating $ofile" >&5
+echo "$as_me: creating $ofile" >&6;}
+
+  cat <<__EOF__ >> "$cfgfile"
+#! $SHELL
+
+# `$echo "$cfgfile" | sed 's%^.*/%%'` - Provide generalized library-building support services.
+# Generated automatically by $PROGRAM (GNU $PACKAGE $VERSION$TIMESTAMP)
+# NOTE: Changes made to this file will be lost: look at ltmain.sh.
+#
+# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001
+# Free Software Foundation, Inc.
+#
+# This file is part of GNU Libtool:
+# Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# A sed program that does not truncate output.
+SED=$lt_SED
+
+# Sed that helps us avoid accidentally triggering echo(1) options like -n.
+Xsed="$SED -e s/^X//"
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+if test "X\${CDPATH+set}" = Xset; then CDPATH=:; export CDPATH; fi
+
+# The names of the tagged configurations supported by this script.
+available_tags=
+
+# ### BEGIN LIBTOOL CONFIG
+
+# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
+
+# Shell to use when invoking shell scripts.
+SHELL=$lt_SHELL
+
+# Whether or not to build shared libraries.
+build_libtool_libs=$enable_shared
+
+# Whether or not to build static libraries.
+build_old_libs=$enable_static
+
+# Whether or not to add -lc for building shared libraries.
+build_libtool_need_lc=$archive_cmds_need_lc
+
+# Whether or not to disallow shared libs when runtime libs are static
+allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes
+
+# Whether or not to optimize for fast installation.
+fast_install=$enable_fast_install
+
+# The host system.
+host_alias=$host_alias
+host=$host
+
+# An echo program that does not interpret backslashes.
+echo=$lt_echo
+
+# The archiver.
+AR=$lt_AR
+AR_FLAGS=$lt_AR_FLAGS
+
+# A C compiler.
+LTCC=$lt_LTCC
+
+# A language-specific compiler.
+CC=$lt_compiler
+
+# Is the compiler the GNU C compiler?
+with_gcc=$GCC
+
+# An ERE matcher.
+EGREP=$lt_EGREP
+
+# The linker used to build libraries.
+LD=$lt_LD
+
+# Whether we need hard or soft links.
+LN_S=$lt_LN_S
+
+# A BSD-compatible nm program.
+NM=$lt_NM
+
+# A symbol stripping program
+STRIP=$STRIP
+
+# Used to examine libraries when file_magic_cmd begins "file"
+MAGIC_CMD=$MAGIC_CMD
+
+# Used on cygwin: DLL creation program.
+DLLTOOL="$DLLTOOL"
+
+# Used on cygwin: object dumper.
+OBJDUMP="$OBJDUMP"
+
+# Used on cygwin: assembler.
+AS="$AS"
+
+# The name of the directory that contains temporary libtool files.
+objdir=$objdir
+
+# How to create reloadable object files.
+reload_flag=$lt_reload_flag
+reload_cmds=$lt_reload_cmds
+
+# How to pass a linker flag through the compiler.
+wl=$lt_lt_prog_compiler_wl
+
+# Object file suffix (normally "o").
+objext="$ac_objext"
+
+# Old archive suffix (normally "a").
+libext="$libext"
+
+# Shared library suffix (normally ".so").
+shrext='$shrext'
+
+# Executable file suffix (normally "").
+exeext="$exeext"
+
+# Additional compiler flags for building library objects.
+pic_flag=$lt_lt_prog_compiler_pic
+pic_mode=$pic_mode
+
+# What is the maximum length of a command?
+max_cmd_len=$lt_cv_sys_max_cmd_len
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o=$lt_lt_cv_prog_compiler_c_o
+
+# Must we lock files when doing compilation ?
+need_locks=$lt_need_locks
+
+# Do we need the lib prefix for modules?
+need_lib_prefix=$need_lib_prefix
+
+# Do we need a version for libraries?
+need_version=$need_version
+
+# Whether dlopen is supported.
+dlopen_support=$enable_dlopen
+
+# Whether dlopen of programs is supported.
+dlopen_self=$enable_dlopen_self
+
+# Whether dlopen of statically linked programs is supported.
+dlopen_self_static=$enable_dlopen_self_static
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag=$lt_lt_prog_compiler_static
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec=$lt_export_dynamic_flag_spec
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec=$lt_whole_archive_flag_spec
+
+# Compiler flag to generate thread-safe objects.
+thread_safe_flag_spec=$lt_thread_safe_flag_spec
+
+# Library versioning type.
+version_type=$version_type
+
+# Format of library name prefix.
+libname_spec=$lt_libname_spec
+
+# List of archive names.  First name is the real one, the rest are links.
+# The last name is the one that the linker finds with -lNAME.
+library_names_spec=$lt_library_names_spec
+
+# The coded name of the library, if different from the real name.
+soname_spec=$lt_soname_spec
+
+# Commands used to build and install an old-style archive.
+RANLIB=$lt_RANLIB
+old_archive_cmds=$lt_old_archive_cmds
+old_postinstall_cmds=$lt_old_postinstall_cmds
+old_postuninstall_cmds=$lt_old_postuninstall_cmds
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=$lt_old_archive_from_new_cmds
+
+# Create a temporary old-style archive to link instead of a shared archive.
+old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds
+
+# Commands used to build and install a shared archive.
+archive_cmds=$lt_archive_cmds
+archive_expsym_cmds=$lt_archive_expsym_cmds
+postinstall_cmds=$lt_postinstall_cmds
+postuninstall_cmds=$lt_postuninstall_cmds
+
+# Commands used to build a loadable module (assumed same as above if empty)
+module_cmds=$lt_module_cmds
+module_expsym_cmds=$lt_module_expsym_cmds
+
+# Commands to strip libraries.
+old_striplib=$lt_old_striplib
+striplib=$lt_striplib
+
+# Dependencies to place before the objects being linked to create a
+# shared library.
+predep_objects=$lt_predep_objects
+
+# Dependencies to place after the objects being linked to create a
+# shared library.
+postdep_objects=$lt_postdep_objects
+
+# Dependencies to place before the objects being linked to create a
+# shared library.
+predeps=$lt_predeps
+
+# Dependencies to place after the objects being linked to create a
+# shared library.
+postdeps=$lt_postdeps
+
+# The library search path used internally by the compiler when linking
+# a shared library.
+compiler_lib_search_path=$lt_compiler_lib_search_path
+
+# Method to check whether dependent libraries are shared objects.
+deplibs_check_method=$lt_deplibs_check_method
+
+# Command to use when deplibs_check_method == file_magic.
+file_magic_cmd=$lt_file_magic_cmd
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=$lt_allow_undefined_flag
+
+# Flag that forces no undefined symbols.
+no_undefined_flag=$lt_no_undefined_flag
+
+# Commands used to finish a libtool library installation in a directory.
+finish_cmds=$lt_finish_cmds
+
+# Same as above, but a single script fragment to be evaled but not shown.
+finish_eval=$lt_finish_eval
+
+# Take the output of nm and produce a listing of raw symbols and C names.
+global_symbol_pipe=$lt_lt_cv_sys_global_symbol_pipe
+
+# Transform the output of nm in a proper C declaration
+global_symbol_to_cdecl=$lt_lt_cv_sys_global_symbol_to_cdecl
+
+# Transform the output of nm in a C name address pair
+global_symbol_to_c_name_address=$lt_lt_cv_sys_global_symbol_to_c_name_address
+
+# This is the shared library runtime path variable.
+runpath_var=$runpath_var
+
+# This is the shared library path variable.
+shlibpath_var=$shlibpath_var
+
+# Is shlibpath searched before the hard-coded library search path?
+shlibpath_overrides_runpath=$shlibpath_overrides_runpath
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=$hardcode_action
+
+# Whether we should hardcode library paths into libraries.
+hardcode_into_libs=$hardcode_into_libs
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist.
+hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec
+
+# If ld is used when linking, flag to hardcode \$libdir into
+# a binary during linking. This must work even if \$libdir does
+# not exist.
+hardcode_libdir_flag_spec_ld=$lt_hardcode_libdir_flag_spec_ld
+
+# Whether we need a single -rpath flag with a separated argument.
+hardcode_libdir_separator=$lt_hardcode_libdir_separator
+
+# Set to yes if using DIR/libNAME${shared_ext} during linking hardcodes DIR into the
+# resulting binary.
+hardcode_direct=$hardcode_direct
+
+# Set to yes if using the -LDIR flag during linking hardcodes DIR into the
+# resulting binary.
+hardcode_minus_L=$hardcode_minus_L
+
+# Set to yes if using SHLIBPATH_VAR=DIR during linking hardcodes DIR into
+# the resulting binary.
+hardcode_shlibpath_var=$hardcode_shlibpath_var
+
+# Set to yes if building a shared library automatically hardcodes DIR into the library
+# and all subsequent libraries and executables linked against it.
+hardcode_automatic=$hardcode_automatic
+
+# Variables whose values should be saved in libtool wrapper scripts and
+# restored at relink time.
+variables_saved_for_relink="$variables_saved_for_relink"
+
+# Whether libtool must link a program against all its dependency libraries.
+link_all_deplibs=$link_all_deplibs
+
+# Compile-time system search path for libraries
+sys_lib_search_path_spec=$lt_sys_lib_search_path_spec
+
+# Run-time system search path for libraries
+sys_lib_dlsearch_path_spec=$lt_sys_lib_dlsearch_path_spec
+
+# Fix the shell variable \$srcfile for the compiler.
+fix_srcfile_path="$fix_srcfile_path"
+
+# Set to yes if exported symbols are required.
+always_export_symbols=$always_export_symbols
+
+# The commands to list exported symbols.
+export_symbols_cmds=$lt_export_symbols_cmds
+
+# The commands to extract the exported symbol list from a shared archive.
+extract_expsyms_cmds=$lt_extract_expsyms_cmds
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms=$lt_exclude_expsyms
+
+# Symbols that must always be exported.
+include_expsyms=$lt_include_expsyms
+
+# ### END LIBTOOL CONFIG
+
+__EOF__
+
+
+  case $host_os in
+  aix3*)
+    cat <<\EOF >> "$cfgfile"
+
+# AIX sometimes has problems with the GCC collect2 program.  For some
+# reason, if we set the COLLECT_NAMES environment variable, the problems
+# vanish in a puff of smoke.
+if test "X${COLLECT_NAMES+set}" != Xset; then
+  COLLECT_NAMES=
+  export COLLECT_NAMES
+fi
+EOF
+    ;;
+  esac
+
+  # We use sed instead of cat because bash on DJGPP gets confused if
+  # if finds mixed CR/LF and LF-only lines.  Since sed operates in
+  # text mode, it properly converts lines to CR/LF.  This bash problem
+  # is reportedly fixed, but why not run on old versions too?
+  sed '$q' "$ltmain" >> "$cfgfile" || (rm -f "$cfgfile"; exit 1)
+
+  mv -f "$cfgfile" "$ofile" || \
+    (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
+  chmod +x "$ofile"
+
+else
+  # If there is no Makefile yet, we rely on a make rule to execute
+  # `config.status --recheck' to rerun these tests and create the
+  # libtool script then.
+  test -f Makefile && make "$ltmain"
+fi
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+CC="$lt_save_CC"
+
+
+# Check whether --with-tags or --without-tags was given.
+if test "${with_tags+set}" = set; then
+  withval="$with_tags"
+  tagnames="$withval"
+fi;
+
+if test -f "$ltmain" && test -n "$tagnames"; then
+  if test ! -f "${ofile}"; then
+    { echo "$as_me:$LINENO: WARNING: output file \`$ofile' does not exist" >&5
+echo "$as_me: WARNING: output file \`$ofile' does not exist" >&2;}
+  fi
+
+  if test -z "$LTCC"; then
+    eval "`$SHELL ${ofile} --config | grep '^LTCC='`"
+    if test -z "$LTCC"; then
+      { echo "$as_me:$LINENO: WARNING: output file \`$ofile' does not look like a libtool script" >&5
+echo "$as_me: WARNING: output file \`$ofile' does not look like a libtool script" >&2;}
+    else
+      { echo "$as_me:$LINENO: WARNING: using \`LTCC=$LTCC', extracted from \`$ofile'" >&5
+echo "$as_me: WARNING: using \`LTCC=$LTCC', extracted from \`$ofile'" >&2;}
+    fi
+  fi
+
+  # Extract list of available tagged configurations in $ofile.
+  # Note that this assumes the entire list is on one line.
+  available_tags=`grep "^available_tags=" "${ofile}" | $SED -e 's/available_tags=\(.*$\)/\1/' -e 's/\"//g'`
+
+  lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+  for tagname in $tagnames; do
+    IFS="$lt_save_ifs"
+    # Check whether tagname contains only valid characters
+    case `$echo "X$tagname" | $Xsed -e 's:[-_ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890,/]::g'` in
+    "") ;;
+    *)  { { echo "$as_me:$LINENO: error: invalid tag name: $tagname" >&5
+echo "$as_me: error: invalid tag name: $tagname" >&2;}
+   { (exit 1); exit 1; }; }
+       ;;
+    esac
+
+    if grep "^# ### BEGIN LIBTOOL TAG CONFIG: $tagname$" < "${ofile}" > /dev/null
+    then
+      { { echo "$as_me:$LINENO: error: tag name \"$tagname\" already exists" >&5
+echo "$as_me: error: tag name \"$tagname\" already exists" >&2;}
+   { (exit 1); exit 1; }; }
+    fi
+
+    # Update the list of available tags.
+    if test -n "$tagname"; then
+      echo appending configuration tag \"$tagname\" to $ofile
+
+      case $tagname in
+      CXX)
+       if test -n "$CXX" && test "X$CXX" != "Xno"; then
+         ac_ext=cc
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+
+
+archive_cmds_need_lc_CXX=no
+allow_undefined_flag_CXX=
+always_export_symbols_CXX=no
+archive_expsym_cmds_CXX=
+export_dynamic_flag_spec_CXX=
+hardcode_direct_CXX=no
+hardcode_libdir_flag_spec_CXX=
+hardcode_libdir_flag_spec_ld_CXX=
+hardcode_libdir_separator_CXX=
+hardcode_minus_L_CXX=no
+hardcode_automatic_CXX=no
+module_cmds_CXX=
+module_expsym_cmds_CXX=
+link_all_deplibs_CXX=unknown
+old_archive_cmds_CXX=$old_archive_cmds
+no_undefined_flag_CXX=
+whole_archive_flag_spec_CXX=
+enable_shared_with_static_runtimes_CXX=no
+
+# Dependencies to place before and after the object being linked:
+predep_objects_CXX=
+postdep_objects_CXX=
+predeps_CXX=
+postdeps_CXX=
+compiler_lib_search_path_CXX=
+
+# Source file extension for C++ test sources.
+ac_ext=cc
+
+# Object file extension for compiled C++ test sources.
+objext=o
+objext_CXX=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="int some_variable = 0;\n"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='int main(int, char *) { return(0); }\n'
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+
+# Allow CC to be a program name with arguments.
+lt_save_CC=$CC
+lt_save_LD=$LD
+lt_save_GCC=$GCC
+GCC=$GXX
+lt_save_with_gnu_ld=$with_gnu_ld
+lt_save_path_LD=$lt_cv_path_LD
+if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then
+  lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx
+else
+  unset lt_cv_prog_gnu_ld
+fi
+if test -n "${lt_cv_path_LDCXX+set}"; then
+  lt_cv_path_LD=$lt_cv_path_LDCXX
+else
+  unset lt_cv_path_LD
+fi
+test -z "${LDCXX+set}" || LD=$LDCXX
+CC=${CXX-"c++"}
+compiler=$CC
+compiler_CXX=$CC
+cc_basename=`$echo X"$compiler" | $Xsed -e 's%^.*/%%'`
+
+# We don't want -fno-exception wen compiling C++ code, so set the
+# no_builtin_flag separately
+if test "$GXX" = yes; then
+  lt_prog_compiler_no_builtin_flag_CXX=' -fno-builtin'
+else
+  lt_prog_compiler_no_builtin_flag_CXX=
+fi
+
+if test "$GXX" = yes; then
+  # Set up default GNU C++ configuration
+
+
+# Check whether --with-gnu-ld or --without-gnu-ld was given.
+if test "${with_gnu_ld+set}" = set; then
+  withval="$with_gnu_ld"
+  test "$withval" = no || with_gnu_ld=yes
+else
+  with_gnu_ld=no
+fi;
+ac_prog=ld
+if test "$GCC" = yes; then
+  # Check if gcc -print-prog-name=ld gives a path.
+  echo "$as_me:$LINENO: checking for ld used by $CC" >&5
+echo $ECHO_N "checking for ld used by $CC... $ECHO_C" >&6
+  case $host in
+  *-*-mingw*)
+    # gcc leaves a trailing carriage return which upsets mingw
+    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+  *)
+    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+  esac
+  case $ac_prog in
+    # Accept absolute paths.
+    [\\/]* | ?:[\\/]*)
+      re_direlt='/[^/][^/]*/\.\./'
+      # Canonicalize the path of ld
+      ac_prog=`echo $ac_prog| $SED 's%\\\\%/%g'`
+      while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
+       ac_prog=`echo $ac_prog| $SED "s%$re_direlt%/%"`
+      done
+      test -z "$LD" && LD="$ac_prog"
+      ;;
+  "")
+    # If it fails, then pretend we aren't using GCC.
+    ac_prog=ld
+    ;;
+  *)
+    # If it is relative, then search for the first ld in PATH.
+    with_gnu_ld=unknown
+    ;;
+  esac
+elif test "$with_gnu_ld" = yes; then
+  echo "$as_me:$LINENO: checking for GNU ld" >&5
+echo $ECHO_N "checking for GNU ld... $ECHO_C" >&6
+else
+  echo "$as_me:$LINENO: checking for non-GNU ld" >&5
+echo $ECHO_N "checking for non-GNU ld... $ECHO_C" >&6
+fi
+if test "${lt_cv_path_LD+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -z "$LD"; then
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  for ac_dir in $PATH; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+      lt_cv_path_LD="$ac_dir/$ac_prog"
+      # Check to see if the program is GNU ld.  I'd rather use --version,
+      # but apparently some GNU ld's only accept -v.
+      # Break only if it was the GNU/non-GNU ld that we prefer.
+      case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
+      *GNU* | *'with BFD'*)
+       test "$with_gnu_ld" != no && break
+       ;;
+      *)
+       test "$with_gnu_ld" != yes && break
+       ;;
+      esac
+    fi
+  done
+  IFS="$lt_save_ifs"
+else
+  lt_cv_path_LD="$LD" # Let the user override the test with a path.
+fi
+fi
+
+LD="$lt_cv_path_LD"
+if test -n "$LD"; then
+  echo "$as_me:$LINENO: result: $LD" >&5
+echo "${ECHO_T}$LD" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+test -z "$LD" && { { echo "$as_me:$LINENO: error: no acceptable ld found in \$PATH" >&5
+echo "$as_me: error: no acceptable ld found in \$PATH" >&2;}
+   { (exit 1); exit 1; }; }
+echo "$as_me:$LINENO: checking if the linker ($LD) is GNU ld" >&5
+echo $ECHO_N "checking if the linker ($LD) is GNU ld... $ECHO_C" >&6
+if test "${lt_cv_prog_gnu_ld+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  # I'd rather use --version here, but apparently some GNU ld's only accept -v.
+case `$LD -v 2>&1 </dev/null` in
+*GNU* | *'with BFD'*)
+  lt_cv_prog_gnu_ld=yes
+  ;;
+*)
+  lt_cv_prog_gnu_ld=no
+  ;;
+esac
+fi
+echo "$as_me:$LINENO: result: $lt_cv_prog_gnu_ld" >&5
+echo "${ECHO_T}$lt_cv_prog_gnu_ld" >&6
+with_gnu_ld=$lt_cv_prog_gnu_ld
+
+
+
+  # Check if GNU C++ uses GNU ld as the underlying linker, since the
+  # archiving commands below assume that GNU ld is being used.
+  if test "$with_gnu_ld" = yes; then
+    archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
+    archive_expsym_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+
+    hardcode_libdir_flag_spec_CXX='${wl}--rpath ${wl}$libdir'
+    export_dynamic_flag_spec_CXX='${wl}--export-dynamic'
+
+    # If archive_cmds runs LD, not CC, wlarc should be empty
+    # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
+    #     investigate it a little bit more. (MM)
+    wlarc='${wl}'
+
+    # ancient GNU ld didn't support --whole-archive et. al.
+    if eval "`$CC -print-prog-name=ld` --help 2>&1" | \
+       grep 'no-whole-archive' > /dev/null; then
+      whole_archive_flag_spec_CXX="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+    else
+      whole_archive_flag_spec_CXX=
+    fi
+  else
+    with_gnu_ld=no
+    wlarc=
+
+    # A generic and very simple default shared library creation
+    # command for GNU C++ for the case where it uses the native
+    # linker, instead of GNU ld.  If possible, this setting should
+    # overridden to take advantage of the native linker features on
+    # the platform it is being used on.
+    archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+  fi
+
+  # Commands to make compiler produce verbose output that lists
+  # what "hidden" libraries, object files and flags are used when
+  # linking a shared library.
+  output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "\-L"'
+
+else
+  GXX=no
+  with_gnu_ld=no
+  wlarc=
+fi
+
+# PORTME: fill in a description of your system's C++ link characteristics
+echo "$as_me:$LINENO: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+echo $ECHO_N "checking whether the $compiler linker ($LD) supports shared libraries... $ECHO_C" >&6
+ld_shlibs_CXX=yes
+case $host_os in
+  aix3*)
+    # FIXME: insert proper C++ library support
+    ld_shlibs_CXX=no
+    ;;
+  aix4* | aix5*)
+    if test "$host_cpu" = ia64; then
+      # On IA64, the linker does run time linking by default, so we don't
+      # have to do anything special.
+      aix_use_runtimelinking=no
+      exp_sym_flag='-Bexport'
+      no_entry_flag=""
+    else
+      aix_use_runtimelinking=no
+
+      # Test if we are trying to use run time linking or normal
+      # AIX style linking. If -brtl is somewhere in LDFLAGS, we
+      # need to do runtime linking.
+      case $host_os in aix4.[23]|aix4.[23].*|aix5*)
+       for ld_flag in $LDFLAGS; do
+         case $ld_flag in
+         *-brtl*)
+           aix_use_runtimelinking=yes
+           break
+           ;;
+         esac
+       done
+      esac
+
+      exp_sym_flag='-bexport'
+      no_entry_flag='-bnoentry'
+    fi
+
+    # When large executables or shared objects are built, AIX ld can
+    # have problems creating the table of contents.  If linking a library
+    # or program results in "error TOC overflow" add -mminimal-toc to
+    # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+    # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+    archive_cmds_CXX=''
+    hardcode_direct_CXX=yes
+    hardcode_libdir_separator_CXX=':'
+    link_all_deplibs_CXX=yes
+
+    if test "$GXX" = yes; then
+      case $host_os in aix4.012|aix4.012.*)
+      # We only want to do this on AIX 4.2 and lower, the check
+      # below for broken collect2 doesn't work under 4.3+
+       collect2name=`${CC} -print-prog-name=collect2`
+       if test -f "$collect2name" && \
+          strings "$collect2name" | grep resolve_lib_name >/dev/null
+       then
+         # We have reworked collect2
+         hardcode_direct_CXX=yes
+       else
+         # We have old collect2
+         hardcode_direct_CXX=unsupported
+         # It fails to find uninstalled libraries when the uninstalled
+         # path is not listed in the libpath.  Setting hardcode_minus_L
+         # to unsupported forces relinking
+         hardcode_minus_L_CXX=yes
+         hardcode_libdir_flag_spec_CXX='-L$libdir'
+         hardcode_libdir_separator_CXX=
+       fi
+      esac
+      shared_flag='-shared'
+    else
+      # not using gcc
+      if test "$host_cpu" = ia64; then
+       # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+       # chokes on -Wl,-G. The following line is correct:
+       shared_flag='-G'
+      else
+       if test "$aix_use_runtimelinking" = yes; then
+         shared_flag='${wl}-G'
+       else
+         shared_flag='${wl}-bM:SRE'
+       fi
+      fi
+    fi
+
+    # It seems that -bexpall does not export symbols beginning with
+    # underscore (_), so it is better to generate a list of symbols to export.
+    always_export_symbols_CXX=yes
+    if test "$aix_use_runtimelinking" = yes; then
+      # Warning - without using the other runtime loading flags (-brtl),
+      # -berok will link without error, but may produce a broken library.
+      allow_undefined_flag_CXX='-berok'
+      # Determine the default libpath from the value encoded in an empty executable.
+      cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
+}'`
+# Check for a 64-bit object if we didn't find anything.
+if test -z "$aix_libpath"; then aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
+}'`; fi
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
+
+      hardcode_libdir_flag_spec_CXX='${wl}-blibpath:$libdir:'"$aix_libpath"
+
+      archive_expsym_cmds_CXX="\$CC"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then echo "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols $shared_flag"
+     else
+      if test "$host_cpu" = ia64; then
+       hardcode_libdir_flag_spec_CXX='${wl}-R $libdir:/usr/lib:/lib'
+       allow_undefined_flag_CXX="-z nodefs"
+       archive_expsym_cmds_CXX="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"
+      else
+       # Determine the default libpath from the value encoded in an empty executable.
+       cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
+}'`
+# Check for a 64-bit object if we didn't find anything.
+if test -z "$aix_libpath"; then aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
+}'`; fi
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
+
+       hardcode_libdir_flag_spec_CXX='${wl}-blibpath:$libdir:'"$aix_libpath"
+       # Warning - without using the other run time loading flags,
+       # -berok will link without error, but may produce a broken library.
+       no_undefined_flag_CXX=' ${wl}-bernotok'
+       allow_undefined_flag_CXX=' ${wl}-berok'
+       # -bexpall does not export symbols beginning with underscore (_)
+       always_export_symbols_CXX=yes
+       # Exported symbols can be pulled into shared objects from archives
+       whole_archive_flag_spec_CXX=' '
+       archive_cmds_need_lc_CXX=yes
+       # This is similar to how AIX traditionally builds it's shared libraries.
+       archive_expsym_cmds_CXX="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bE:$export_symbols ${wl}-bnoentry${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
+      fi
+    fi
+    ;;
+  chorus*)
+    case $cc_basename in
+      *)
+       # FIXME: insert proper C++ library support
+       ld_shlibs_CXX=no
+       ;;
+    esac
+    ;;
+
+  cygwin* | mingw* | pw32*)
+    # _LT_AC_TAGVAR(hardcode_libdir_flag_spec, CXX) is actually meaningless,
+    # as there is no search path for DLLs.
+    hardcode_libdir_flag_spec_CXX='-L$libdir'
+    allow_undefined_flag_CXX=unsupported
+    always_export_symbols_CXX=no
+    enable_shared_with_static_runtimes_CXX=yes
+
+    if $LD --help 2>&1 | grep 'auto-import' > /dev/null; then
+      archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--image-base=0x10000000 ${wl}--out-implib,$lib'
+      # If the export-symbols file already is a .def file (1st line
+      # is EXPORTS), use it as is; otherwise, prepend...
+      archive_expsym_cmds_CXX='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+       cp $export_symbols $output_objdir/$soname.def;
+      else
+       echo EXPORTS > $output_objdir/$soname.def;
+       cat $export_symbols >> $output_objdir/$soname.def;
+      fi~
+      $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--image-base=0x10000000 ${wl}--out-implib,$lib'
+    else
+      ld_shlibs_CXX=no
+    fi
+  ;;
+
+  darwin* | rhapsody*)
+   if $CC -v 2>&1 | grep 'Apple' >/dev/null ; then
+    archive_cmds_need_lc_CXX=no
+    case "$host_os" in
+    rhapsody* | darwin1.[012])
+      allow_undefined_flag_CXX='-undefined suppress'
+      ;;
+    *) # Darwin 1.3 on
+      test -z ${LD_TWOLEVEL_NAMESPACE} && allow_undefined_flag_CXX='-flat_namespace -undefined suppress'
+      ;;
+    esac
+       lt_int_apple_cc_single_mod=no
+       output_verbose_link_cmd='echo'
+       if $CC -dumpspecs 2>&1 | grep 'single_module' >/dev/null ; then
+         lt_int_apple_cc_single_mod=yes
+       fi
+       if test "X$lt_int_apple_cc_single_mod" = Xyes ; then
+         archive_cmds_CXX='$CC -dynamiclib -single_module $allow_undefined_flag -o $lib $libobjs $deplibs $compiler_flags -install_name $rpath/$soname $verstring'
+       else
+        archive_cmds_CXX='$CC -r ${wl}-bind_at_load -keep_private_externs -nostdlib -o ${lib}-master.o $libobjs~$CC -dynamiclib $allow_undefined_flag -o $lib ${lib}-master.o $deplibs $compiler_flags -install_name $rpath/$soname $verstring'
+      fi
+      module_cmds_CXX='$CC -bundle ${wl}-bind_at_load $allow_undefined_flag -o $lib $libobjs $deplibs$compiler_flags'
+
+    # Don't fix this by using the ld -exported_symbols_list flag, it doesn't exist in older darwin ld's
+      if test "X$lt_int_apple_cc_single_mod" = Xyes ; then
+        archive_expsym_cmds_CXX='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -dynamiclib -single_module $allow_undefined_flag -o $lib $libobjs $deplibs $compiler_flags -install_name $rpath/$soname $verstring~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
+      else
+        archive_expsym_cmds_CXX='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -r ${wl}-bind_at_load -keep_private_externs -nostdlib -o ${lib}-master.o $libobjs~$CC -dynamiclib $allow_undefined_flag -o $lib ${lib}-master.o $deplibs $compiler_flags -install_name $rpath/$soname $verstring~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
+      fi
+        module_expsym_cmds_CXX='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -bundle $allow_undefined_flag  -o $lib $libobjs $deplibs$compiler_flags~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
+    hardcode_direct_CXX=no
+    hardcode_automatic_CXX=yes
+    hardcode_shlibpath_var_CXX=unsupported
+    whole_archive_flag_spec_CXX='-all_load $convenience'
+    link_all_deplibs_CXX=yes
+   fi
+    ;;
+
+  dgux*)
+    case $cc_basename in
+      ec++)
+       # FIXME: insert proper C++ library support
+       ld_shlibs_CXX=no
+       ;;
+      ghcx)
+       # Green Hills C++ Compiler
+       # FIXME: insert proper C++ library support
+       ld_shlibs_CXX=no
+       ;;
+      *)
+       # FIXME: insert proper C++ library support
+       ld_shlibs_CXX=no
+       ;;
+    esac
+    ;;
+  freebsd12*)
+    # C++ shared libraries reported to be fairly broken before switch to ELF
+    ld_shlibs_CXX=no
+    ;;
+  freebsd-elf*)
+    archive_cmds_need_lc_CXX=no
+    ;;
+  freebsd*)
+    # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
+    # conventions
+    ld_shlibs_CXX=yes
+    ;;
+  gnu*)
+    ;;
+  hpux9*)
+    hardcode_libdir_flag_spec_CXX='${wl}+b ${wl}$libdir'
+    hardcode_libdir_separator_CXX=:
+    export_dynamic_flag_spec_CXX='${wl}-E'
+    hardcode_direct_CXX=yes
+    hardcode_minus_L_CXX=yes # Not in the search PATH,
+                               # but as the default
+                               # location of the library.
+
+    case $cc_basename in
+    CC)
+      # FIXME: insert proper C++ library support
+      ld_shlibs_CXX=no
+      ;;
+    aCC)
+      archive_cmds_CXX='$rm $output_objdir/$soname~$CC -b ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+      # Commands to make compiler produce verbose output that lists
+      # what "hidden" libraries, object files and flags are used when
+      # linking a shared library.
+      #
+      # There doesn't appear to be a way to prevent this compiler from
+      # explicitly linking system object files so we need to strip them
+      # from the output so that they don't get included in the library
+      # dependencies.
+      output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | egrep "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
+      ;;
+    *)
+      if test "$GXX" = yes; then
+        archive_cmds_CXX='$rm $output_objdir/$soname~$CC -shared -nostdlib -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+      else
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+      fi
+      ;;
+    esac
+    ;;
+  hpux10*|hpux11*)
+    if test $with_gnu_ld = no; then
+      case "$host_cpu" in
+      hppa*64*)
+       hardcode_libdir_flag_spec_CXX='${wl}+b ${wl}$libdir'
+       hardcode_libdir_flag_spec_ld_CXX='+b $libdir'
+       hardcode_libdir_separator_CXX=:
+        ;;
+      ia64*)
+       hardcode_libdir_flag_spec_CXX='-L$libdir'
+        ;;
+      *)
+       hardcode_libdir_flag_spec_CXX='${wl}+b ${wl}$libdir'
+       hardcode_libdir_separator_CXX=:
+       export_dynamic_flag_spec_CXX='${wl}-E'
+        ;;
+      esac
+    fi
+    case "$host_cpu" in
+    hppa*64*)
+      hardcode_direct_CXX=no
+      hardcode_shlibpath_var_CXX=no
+      ;;
+    ia64*)
+      hardcode_direct_CXX=no
+      hardcode_shlibpath_var_CXX=no
+      hardcode_minus_L_CXX=yes # Not in the search PATH,
+                                             # but as the default
+                                             # location of the library.
+      ;;
+    *)
+      hardcode_direct_CXX=yes
+      hardcode_minus_L_CXX=yes # Not in the search PATH,
+                                             # but as the default
+                                             # location of the library.
+      ;;
+    esac
+
+    case $cc_basename in
+      CC)
+       # FIXME: insert proper C++ library support
+       ld_shlibs_CXX=no
+       ;;
+      aCC)
+       case "$host_cpu" in
+       hppa*64*|ia64*)
+         archive_cmds_CXX='$LD -b +h $soname -o $lib $linker_flags $libobjs $deplibs'
+         ;;
+       *)
+         archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+         ;;
+       esac
+       # Commands to make compiler produce verbose output that lists
+       # what "hidden" libraries, object files and flags are used when
+       # linking a shared library.
+       #
+       # There doesn't appear to be a way to prevent this compiler from
+       # explicitly linking system object files so we need to strip them
+       # from the output so that they don't get included in the library
+       # dependencies.
+       output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | grep "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
+       ;;
+      *)
+       if test "$GXX" = yes; then
+         if test $with_gnu_ld = no; then
+           case "$host_cpu" in
+           ia64*|hppa*64*)
+             archive_cmds_CXX='$LD -b +h $soname -o $lib $linker_flags $libobjs $deplibs'
+             ;;
+           *)
+             archive_cmds_CXX='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+             ;;
+           esac
+         fi
+       else
+         # FIXME: insert proper C++ library support
+         ld_shlibs_CXX=no
+       fi
+       ;;
+    esac
+    ;;
+  irix5* | irix6*)
+    case $cc_basename in
+      CC)
+       # SGI C++
+       archive_cmds_CXX='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
+
+       # Archives containing C++ object files must be created using
+       # "CC -ar", where "CC" is the IRIX C++ compiler.  This is
+       # necessary to make sure instantiated templates are included
+       # in the archive.
+       old_archive_cmds_CXX='$CC -ar -WR,-u -o $oldlib $oldobjs'
+       ;;
+      *)
+       if test "$GXX" = yes; then
+         if test "$with_gnu_ld" = no; then
+           archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
+         else
+           archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` -o $lib'
+         fi
+       fi
+       link_all_deplibs_CXX=yes
+       ;;
+    esac
+    hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
+    hardcode_libdir_separator_CXX=:
+    ;;
+  linux*)
+    case $cc_basename in
+      KCC)
+       # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+       # KCC will only create a shared library if the output file
+       # ends with ".so" (or ".sl" for HP-UX), so rename the library
+       # to its proper name (with version) after linking.
+       archive_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+       archive_expsym_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib ${wl}-retain-symbols-file,$export_symbols; mv \$templib $lib'
+       # Commands to make compiler produce verbose output that lists
+       # what "hidden" libraries, object files and flags are used when
+       # linking a shared library.
+       #
+       # There doesn't appear to be a way to prevent this compiler from
+       # explicitly linking system object files so we need to strip them
+       # from the output so that they don't get included in the library
+       # dependencies.
+       output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | grep "ld"`; rm -f libconftest$shared_ext; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
+
+       hardcode_libdir_flag_spec_CXX='${wl}--rpath,$libdir'
+       export_dynamic_flag_spec_CXX='${wl}--export-dynamic'
+
+       # Archives containing C++ object files must be created using
+       # "CC -Bstatic", where "CC" is the KAI C++ compiler.
+       old_archive_cmds_CXX='$CC -Bstatic -o $oldlib $oldobjs'
+       ;;
+      icpc)
+       # Intel C++
+       with_gnu_ld=yes
+       archive_cmds_need_lc_CXX=no
+       archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
+       archive_expsym_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+       hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
+       export_dynamic_flag_spec_CXX='${wl}--export-dynamic'
+       whole_archive_flag_spec_CXX='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
+       ;;
+      cxx)
+       # Compaq C++
+       archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
+       archive_expsym_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname  -o $lib ${wl}-retain-symbols-file $wl$export_symbols'
+
+       runpath_var=LD_RUN_PATH
+       hardcode_libdir_flag_spec_CXX='-rpath $libdir'
+       hardcode_libdir_separator_CXX=:
+
+       # Commands to make compiler produce verbose output that lists
+       # what "hidden" libraries, object files and flags are used when
+       # linking a shared library.
+       #
+       # There doesn't appear to be a way to prevent this compiler from
+       # explicitly linking system object files so we need to strip them
+       # from the output so that they don't get included in the library
+       # dependencies.
+       output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "ld"`; templist=`echo $templist | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
+       ;;
+    esac
+    ;;
+  lynxos*)
+    # FIXME: insert proper C++ library support
+    ld_shlibs_CXX=no
+    ;;
+  m88k*)
+    # FIXME: insert proper C++ library support
+    ld_shlibs_CXX=no
+    ;;
+  mvs*)
+    case $cc_basename in
+      cxx)
+       # FIXME: insert proper C++ library support
+       ld_shlibs_CXX=no
+       ;;
+      *)
+       # FIXME: insert proper C++ library support
+       ld_shlibs_CXX=no
+       ;;
+    esac
+    ;;
+  netbsd*)
+    if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
+      archive_cmds_CXX='$LD -Bshareable  -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags'
+      wlarc=
+      hardcode_libdir_flag_spec_CXX='-R$libdir'
+      hardcode_direct_CXX=yes
+      hardcode_shlibpath_var_CXX=no
+    fi
+    # Workaround some broken pre-1.5 toolchains
+    output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"'
+    ;;
+  osf3*)
+    case $cc_basename in
+      KCC)
+       # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+       # KCC will only create a shared library if the output file
+       # ends with ".so" (or ".sl" for HP-UX), so rename the library
+       # to its proper name (with version) after linking.
+       archive_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+
+       hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
+       hardcode_libdir_separator_CXX=:
+
+       # Archives containing C++ object files must be created using
+       # "CC -Bstatic", where "CC" is the KAI C++ compiler.
+       old_archive_cmds_CXX='$CC -Bstatic -o $oldlib $oldobjs'
+
+       ;;
+      RCC)
+       # Rational C++ 2.4.1
+       # FIXME: insert proper C++ library support
+       ld_shlibs_CXX=no
+       ;;
+      cxx)
+       allow_undefined_flag_CXX=' ${wl}-expect_unresolved ${wl}\*'
+       archive_cmds_CXX='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $soname `test -n "$verstring" && echo ${wl}-set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
+
+       hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
+       hardcode_libdir_separator_CXX=:
+
+       # Commands to make compiler produce verbose output that lists
+       # what "hidden" libraries, object files and flags are used when
+       # linking a shared library.
+       #
+       # There doesn't appear to be a way to prevent this compiler from
+       # explicitly linking system object files so we need to strip them
+       # from the output so that they don't get included in the library
+       # dependencies.
+       output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "ld" | grep -v "ld:"`; templist=`echo $templist | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
+       ;;
+      *)
+       if test "$GXX" = yes && test "$with_gnu_ld" = no; then
+         allow_undefined_flag_CXX=' ${wl}-expect_unresolved ${wl}\*'
+         archive_cmds_CXX='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
+
+         hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
+         hardcode_libdir_separator_CXX=:
+
+         # Commands to make compiler produce verbose output that lists
+         # what "hidden" libraries, object files and flags are used when
+         # linking a shared library.
+         output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "\-L"'
+
+       else
+         # FIXME: insert proper C++ library support
+         ld_shlibs_CXX=no
+       fi
+       ;;
+    esac
+    ;;
+  osf4* | osf5*)
+    case $cc_basename in
+      KCC)
+       # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+       # KCC will only create a shared library if the output file
+       # ends with ".so" (or ".sl" for HP-UX), so rename the library
+       # to its proper name (with version) after linking.
+       archive_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+
+       hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
+       hardcode_libdir_separator_CXX=:
+
+       # Archives containing C++ object files must be created using
+       # the KAI C++ compiler.
+       old_archive_cmds_CXX='$CC -o $oldlib $oldobjs'
+       ;;
+      RCC)
+       # Rational C++ 2.4.1
+       # FIXME: insert proper C++ library support
+       ld_shlibs_CXX=no
+       ;;
+      cxx)
+       allow_undefined_flag_CXX=' -expect_unresolved \*'
+       archive_cmds_CXX='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
+       archive_expsym_cmds_CXX='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~
+         echo "-hidden">> $lib.exp~
+         $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname -Wl,-input -Wl,$lib.exp  `test -n "$verstring" && echo -set_version $verstring` -update_registry $objdir/so_locations -o $lib~
+         $rm $lib.exp'
+
+       hardcode_libdir_flag_spec_CXX='-rpath $libdir'
+       hardcode_libdir_separator_CXX=:
+
+       # Commands to make compiler produce verbose output that lists
+       # what "hidden" libraries, object files and flags are used when
+       # linking a shared library.
+       #
+       # There doesn't appear to be a way to prevent this compiler from
+       # explicitly linking system object files so we need to strip them
+       # from the output so that they don't get included in the library
+       # dependencies.
+       output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "ld" | grep -v "ld:"`; templist=`echo $templist | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
+       ;;
+      *)
+       if test "$GXX" = yes && test "$with_gnu_ld" = no; then
+         allow_undefined_flag_CXX=' ${wl}-expect_unresolved ${wl}\*'
+        archive_cmds_CXX='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
+
+         hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
+         hardcode_libdir_separator_CXX=:
+
+         # Commands to make compiler produce verbose output that lists
+         # what "hidden" libraries, object files and flags are used when
+         # linking a shared library.
+         output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "\-L"'
+
+       else
+         # FIXME: insert proper C++ library support
+         ld_shlibs_CXX=no
+       fi
+       ;;
+    esac
+    ;;
+  psos*)
+    # FIXME: insert proper C++ library support
+    ld_shlibs_CXX=no
+    ;;
+  sco*)
+    archive_cmds_need_lc_CXX=no
+    case $cc_basename in
+      CC)
+       # FIXME: insert proper C++ library support
+       ld_shlibs_CXX=no
+       ;;
+      *)
+       # FIXME: insert proper C++ library support
+       ld_shlibs_CXX=no
+       ;;
+    esac
+    ;;
+  sunos4*)
+    case $cc_basename in
+      CC)
+       # Sun C++ 4.x
+       # FIXME: insert proper C++ library support
+       ld_shlibs_CXX=no
+       ;;
+      lcc)
+       # Lucid
+       # FIXME: insert proper C++ library support
+       ld_shlibs_CXX=no
+       ;;
+      *)
+       # FIXME: insert proper C++ library support
+       ld_shlibs_CXX=no
+       ;;
+    esac
+    ;;
+  solaris*)
+    case $cc_basename in
+      CC)
+       # Sun C++ 4.2, 5.x and Centerline C++
+       no_undefined_flag_CXX=' -zdefs'
+       archive_cmds_CXX='$CC -G${allow_undefined_flag} -nolib -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+       archive_expsym_cmds_CXX='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+       $CC -G${allow_undefined_flag} -nolib ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
+
+       hardcode_libdir_flag_spec_CXX='-R$libdir'
+       hardcode_shlibpath_var_CXX=no
+       case $host_os in
+         solaris2.0-5 | solaris2.0-5.*) ;;
+         *)
+           # The C++ compiler is used as linker so we must use $wl
+           # flag to pass the commands to the underlying system
+           # linker.
+           # Supported since Solaris 2.6 (maybe 2.5.1?)
+           whole_archive_flag_spec_CXX='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
+           ;;
+       esac
+       link_all_deplibs_CXX=yes
+
+       # Commands to make compiler produce verbose output that lists
+       # what "hidden" libraries, object files and flags are used when
+       # linking a shared library.
+       #
+       # There doesn't appear to be a way to prevent this compiler from
+       # explicitly linking system object files so we need to strip them
+       # from the output so that they don't get included in the library
+       # dependencies.
+       output_verbose_link_cmd='templist=`$CC -G $CFLAGS -v conftest.$objext 2>&1 | grep "\-[LR]"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
+
+       # Archives containing C++ object files must be created using
+       # "CC -xar", where "CC" is the Sun C++ compiler.  This is
+       # necessary to make sure instantiated templates are included
+       # in the archive.
+       old_archive_cmds_CXX='$CC -xar -o $oldlib $oldobjs'
+       ;;
+      gcx)
+       # Green Hills C++ Compiler
+       archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+
+       # The C++ compiler must be used to create the archive.
+       old_archive_cmds_CXX='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
+       ;;
+      *)
+       # GNU C++ compiler with Solaris linker
+       if test "$GXX" = yes && test "$with_gnu_ld" = no; then
+         no_undefined_flag_CXX=' ${wl}-z ${wl}defs'
+         if $CC --version | grep -v '^2\.7' > /dev/null; then
+           archive_cmds_CXX='$CC -shared -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+           archive_expsym_cmds_CXX='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+               $CC -shared -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
+
+           # Commands to make compiler produce verbose output that lists
+           # what "hidden" libraries, object files and flags are used when
+           # linking a shared library.
+           output_verbose_link_cmd="$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep \"\-L\""
+         else
+           # g++ 2.7 appears to require `-G' NOT `-shared' on this
+           # platform.
+           archive_cmds_CXX='$CC -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+           archive_expsym_cmds_CXX='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+               $CC -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
+
+           # Commands to make compiler produce verbose output that lists
+           # what "hidden" libraries, object files and flags are used when
+           # linking a shared library.
+           output_verbose_link_cmd="$CC -G $CFLAGS -v conftest.$objext 2>&1 | grep \"\-L\""
+         fi
+
+         hardcode_libdir_flag_spec_CXX='${wl}-R $wl$libdir'
+       fi
+       ;;
+    esac
+    ;;
+  sysv5OpenUNIX8* | sysv5UnixWare7* | sysv5uw[78]* | unixware7*)
+    archive_cmds_need_lc_CXX=no
+    ;;
+  tandem*)
+    case $cc_basename in
+      NCC)
+       # NonStop-UX NCC 3.20
+       # FIXME: insert proper C++ library support
+       ld_shlibs_CXX=no
+       ;;
+      *)
+       # FIXME: insert proper C++ library support
+       ld_shlibs_CXX=no
+       ;;
+    esac
+    ;;
+  vxworks*)
+    # FIXME: insert proper C++ library support
+    ld_shlibs_CXX=no
+    ;;
+  *)
+    # FIXME: insert proper C++ library support
+    ld_shlibs_CXX=no
+    ;;
+esac
+echo "$as_me:$LINENO: result: $ld_shlibs_CXX" >&5
+echo "${ECHO_T}$ld_shlibs_CXX" >&6
+test "$ld_shlibs_CXX" = no && can_build_shared=no
+
+GCC_CXX="$GXX"
+LD_CXX="$LD"
+
+
+cat > conftest.$ac_ext <<EOF
+class Foo
+{
+public:
+  Foo (void) { a = 0; }
+private:
+  int a;
+};
+EOF
+
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; then
+  # Parse the compiler output and extract the necessary
+  # objects, libraries and library flags.
+
+  # Sentinel used to keep track of whether or not we are before
+  # the conftest object file.
+  pre_test_object_deps_done=no
+
+  # The `*' in the case matches for architectures that use `case' in
+  # $output_verbose_cmd can trigger glob expansion during the loop
+  # eval without this substitution.
+  output_verbose_link_cmd="`$echo \"X$output_verbose_link_cmd\" | $Xsed -e \"$no_glob_subst\"`"
+
+  for p in `eval $output_verbose_link_cmd`; do
+    case $p in
+
+    -L* | -R* | -l*)
+       # Some compilers place space between "-{L,R}" and the path.
+       # Remove the space.
+       if test $p = "-L" \
+         || test $p = "-R"; then
+        prev=$p
+        continue
+       else
+        prev=
+       fi
+
+       if test "$pre_test_object_deps_done" = no; then
+        case $p in
+        -L* | -R*)
+          # Internal compiler library paths should come after those
+          # provided the user.  The postdeps already come after the
+          # user supplied libs so there is no need to process them.
+          if test -z "$compiler_lib_search_path_CXX"; then
+            compiler_lib_search_path_CXX="${prev}${p}"
+          else
+            compiler_lib_search_path_CXX="${compiler_lib_search_path_CXX} ${prev}${p}"
+          fi
+          ;;
+        # The "-l" case would never come before the object being
+        # linked, so don't bother handling this case.
+        esac
+       else
+        if test -z "$postdeps_CXX"; then
+          postdeps_CXX="${prev}${p}"
+        else
+          postdeps_CXX="${postdeps_CXX} ${prev}${p}"
+        fi
+       fi
+       ;;
+
+    *.$objext)
+       # This assumes that the test object file only shows up
+       # once in the compiler output.
+       if test "$p" = "conftest.$objext"; then
+        pre_test_object_deps_done=yes
+        continue
+       fi
+
+       if test "$pre_test_object_deps_done" = no; then
+        if test -z "$predep_objects_CXX"; then
+          predep_objects_CXX="$p"
+        else
+          predep_objects_CXX="$predep_objects_CXX $p"
+        fi
+       else
+        if test -z "$postdep_objects_CXX"; then
+          postdep_objects_CXX="$p"
+        else
+          postdep_objects_CXX="$postdep_objects_CXX $p"
+        fi
+       fi
+       ;;
+
+    *) ;; # Ignore the rest.
+
+    esac
+  done
+
+  # Clean up.
+  rm -f a.out a.exe
+else
+  echo "libtool.m4: error: problem compiling CXX test program"
+fi
+
+$rm -f confest.$objext
+
+case " $postdeps_CXX " in
+*" -lc "*) archive_cmds_need_lc_CXX=no ;;
+esac
+
+lt_prog_compiler_wl_CXX=
+lt_prog_compiler_pic_CXX=
+lt_prog_compiler_static_CXX=
+
+echo "$as_me:$LINENO: checking for $compiler option to produce PIC" >&5
+echo $ECHO_N "checking for $compiler option to produce PIC... $ECHO_C" >&6
+
+  # C++ specific cases for pic, static, wl, etc.
+  if test "$GXX" = yes; then
+    lt_prog_compiler_wl_CXX='-Wl,'
+    lt_prog_compiler_static_CXX='-static'
+
+    case $host_os in
+    aix*)
+      # All AIX code is PIC.
+      if test "$host_cpu" = ia64; then
+       # AIX 5 now supports IA64 processor
+       lt_prog_compiler_static_CXX='-Bstatic'
+      fi
+      ;;
+    amigaos*)
+      # FIXME: we need at least 68020 code to build shared libraries, but
+      # adding the `-m68020' flag to GCC prevents building anything better,
+      # like `-m68040'.
+      lt_prog_compiler_pic_CXX='-m68020 -resident32 -malways-restore-a4'
+      ;;
+    beos* | cygwin* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+    mingw* | os2* | pw32*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      lt_prog_compiler_pic_CXX='-DDLL_EXPORT'
+      ;;
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      lt_prog_compiler_pic_CXX='-fno-common'
+      ;;
+    *djgpp*)
+      # DJGPP does not support shared libraries at all
+      lt_prog_compiler_pic_CXX=
+      ;;
+    sysv4*MP*)
+      if test -d /usr/nec; then
+       lt_prog_compiler_pic_CXX=-Kconform_pic
+      fi
+      ;;
+    hpux*)
+      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
+      # not for PA HP-UX.
+      case "$host_cpu" in
+      hppa*64*|ia64*)
+       ;;
+      *)
+       lt_prog_compiler_pic_CXX='-fPIC'
+       ;;
+      esac
+      ;;
+    *)
+      lt_prog_compiler_pic_CXX='-fPIC'
+      ;;
+    esac
+  else
+    case $host_os in
+      aix4* | aix5*)
+       # All AIX code is PIC.
+       if test "$host_cpu" = ia64; then
+         # AIX 5 now supports IA64 processor
+         lt_prog_compiler_static_CXX='-Bstatic'
+       else
+         lt_prog_compiler_static_CXX='-bnso -bI:/lib/syscalls.exp'
+       fi
+       ;;
+      chorus*)
+       case $cc_basename in
+       cxch68)
+         # Green Hills C++ Compiler
+         # _LT_AC_TAGVAR(lt_prog_compiler_static, CXX)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a"
+         ;;
+       esac
+       ;;
+      dgux*)
+       case $cc_basename in
+         ec++)
+           lt_prog_compiler_pic_CXX='-KPIC'
+           ;;
+         ghcx)
+           # Green Hills C++ Compiler
+           lt_prog_compiler_pic_CXX='-pic'
+           ;;
+         *)
+           ;;
+       esac
+       ;;
+      freebsd*)
+       # FreeBSD uses GNU C++
+       ;;
+      hpux9* | hpux10* | hpux11*)
+       case $cc_basename in
+         CC)
+           lt_prog_compiler_wl_CXX='-Wl,'
+           lt_prog_compiler_static_CXX="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
+           if test "$host_cpu" != ia64; then
+             lt_prog_compiler_pic_CXX='+Z'
+           fi
+           ;;
+         aCC)
+           lt_prog_compiler_wl_CXX='-Wl,'
+           lt_prog_compiler_static_CXX="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
+           case "$host_cpu" in
+           hppa*64*|ia64*)
+             # +Z the default
+             ;;
+           *)
+             lt_prog_compiler_pic_CXX='+Z'
+             ;;
+           esac
+           ;;
+         *)
+           ;;
+       esac
+       ;;
+      irix5* | irix6* | nonstopux*)
+       case $cc_basename in
+         CC)
+           lt_prog_compiler_wl_CXX='-Wl,'
+           lt_prog_compiler_static_CXX='-non_shared'
+           # CC pic flag -KPIC is the default.
+           ;;
+         *)
+           ;;
+       esac
+       ;;
+      linux*)
+       case $cc_basename in
+         KCC)
+           # KAI C++ Compiler
+           lt_prog_compiler_wl_CXX='--backend -Wl,'
+           lt_prog_compiler_pic_CXX='-fPIC'
+           ;;
+         icpc)
+           # Intel C++
+           lt_prog_compiler_wl_CXX='-Wl,'
+           lt_prog_compiler_pic_CXX='-KPIC'
+           lt_prog_compiler_static_CXX='-static'
+           ;;
+         cxx)
+           # Compaq C++
+           # Make sure the PIC flag is empty.  It appears that all Alpha
+           # Linux and Compaq Tru64 Unix objects are PIC.
+           lt_prog_compiler_pic_CXX=
+           lt_prog_compiler_static_CXX='-non_shared'
+           ;;
+         *)
+           ;;
+       esac
+       ;;
+      lynxos*)
+       ;;
+      m88k*)
+       ;;
+      mvs*)
+       case $cc_basename in
+         cxx)
+           lt_prog_compiler_pic_CXX='-W c,exportall'
+           ;;
+         *)
+           ;;
+       esac
+       ;;
+      netbsd*)
+       ;;
+      osf3* | osf4* | osf5*)
+       case $cc_basename in
+         KCC)
+           lt_prog_compiler_wl_CXX='--backend -Wl,'
+           ;;
+         RCC)
+           # Rational C++ 2.4.1
+           lt_prog_compiler_pic_CXX='-pic'
+           ;;
+         cxx)
+           # Digital/Compaq C++
+           lt_prog_compiler_wl_CXX='-Wl,'
+           # Make sure the PIC flag is empty.  It appears that all Alpha
+           # Linux and Compaq Tru64 Unix objects are PIC.
+           lt_prog_compiler_pic_CXX=
+           lt_prog_compiler_static_CXX='-non_shared'
+           ;;
+         *)
+           ;;
+       esac
+       ;;
+      psos*)
+       ;;
+      sco*)
+       case $cc_basename in
+         CC)
+           lt_prog_compiler_pic_CXX='-fPIC'
+           ;;
+         *)
+           ;;
+       esac
+       ;;
+      solaris*)
+       case $cc_basename in
+         CC)
+           # Sun C++ 4.2, 5.x and Centerline C++
+           lt_prog_compiler_pic_CXX='-KPIC'
+           lt_prog_compiler_static_CXX='-Bstatic'
+           lt_prog_compiler_wl_CXX='-Qoption ld '
+           ;;
+         gcx)
+           # Green Hills C++ Compiler
+           lt_prog_compiler_pic_CXX='-PIC'
+           ;;
+         *)
+           ;;
+       esac
+       ;;
+      sunos4*)
+       case $cc_basename in
+         CC)
+           # Sun C++ 4.x
+           lt_prog_compiler_pic_CXX='-pic'
+           lt_prog_compiler_static_CXX='-Bstatic'
+           ;;
+         lcc)
+           # Lucid
+           lt_prog_compiler_pic_CXX='-pic'
+           ;;
+         *)
+           ;;
+       esac
+       ;;
+      tandem*)
+       case $cc_basename in
+         NCC)
+           # NonStop-UX NCC 3.20
+           lt_prog_compiler_pic_CXX='-KPIC'
+           ;;
+         *)
+           ;;
+       esac
+       ;;
+      unixware*)
+       ;;
+      vxworks*)
+       ;;
+      *)
+       lt_prog_compiler_can_build_shared_CXX=no
+       ;;
+    esac
+  fi
+
+echo "$as_me:$LINENO: result: $lt_prog_compiler_pic_CXX" >&5
+echo "${ECHO_T}$lt_prog_compiler_pic_CXX" >&6
+
+#
+# Check to make sure the PIC flag actually works.
+#
+if test -n "$lt_prog_compiler_pic_CXX"; then
+  echo "$as_me:$LINENO: checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works" >&5
+echo $ECHO_N "checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works... $ECHO_C" >&6
+if test "${lt_prog_compiler_pic_works_CXX+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  lt_prog_compiler_pic_works_CXX=no
+  ac_outfile=conftest.$ac_objext
+   printf "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="$lt_prog_compiler_pic_CXX -DPIC"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:10602: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&5
+   echo "$as_me:10606: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test ! -s conftest.err; then
+       lt_prog_compiler_pic_works_CXX=yes
+     fi
+   fi
+   $rm conftest*
+
+fi
+echo "$as_me:$LINENO: result: $lt_prog_compiler_pic_works_CXX" >&5
+echo "${ECHO_T}$lt_prog_compiler_pic_works_CXX" >&6
+
+if test x"$lt_prog_compiler_pic_works_CXX" = xyes; then
+    case $lt_prog_compiler_pic_CXX in
+     "" | " "*) ;;
+     *) lt_prog_compiler_pic_CXX=" $lt_prog_compiler_pic_CXX" ;;
+     esac
+else
+    lt_prog_compiler_pic_CXX=
+     lt_prog_compiler_can_build_shared_CXX=no
+fi
+
+fi
+case "$host_os" in
+  # For platforms which do not support PIC, -DPIC is meaningless:
+  *djgpp*)
+    lt_prog_compiler_pic_CXX=
+    ;;
+  *)
+    lt_prog_compiler_pic_CXX="$lt_prog_compiler_pic_CXX -DPIC"
+    ;;
+esac
+
+echo "$as_me:$LINENO: checking if $compiler supports -c -o file.$ac_objext" >&5
+echo $ECHO_N "checking if $compiler supports -c -o file.$ac_objext... $ECHO_C" >&6
+if test "${lt_cv_prog_compiler_c_o_CXX+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  lt_cv_prog_compiler_c_o_CXX=no
+   $rm -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   printf "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   # According to Tom Tromey, Ian Lance Taylor reported there are C compilers
+   # that will create temporary files in the current directory regardless of
+   # the output directory.  Thus, making CWD read-only will cause this test
+   # to fail, enabling locking or at least warning the user not to do parallel
+   # builds.
+   chmod -w .
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:10669: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:10673: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test ! -s out/conftest.err; then
+       lt_cv_prog_compiler_c_o_CXX=yes
+     fi
+   fi
+   chmod u+w .
+   $rm conftest* out/*
+   rmdir out
+   cd ..
+   rmdir conftest
+   $rm conftest*
+
+fi
+echo "$as_me:$LINENO: result: $lt_cv_prog_compiler_c_o_CXX" >&5
+echo "${ECHO_T}$lt_cv_prog_compiler_c_o_CXX" >&6
+
+
+hard_links="nottested"
+if test "$lt_cv_prog_compiler_c_o_CXX" = no && test "$need_locks" != no; then
+  # do not overwrite the value of need_locks provided by the user
+  echo "$as_me:$LINENO: checking if we can lock with hard links" >&5
+echo $ECHO_N "checking if we can lock with hard links... $ECHO_C" >&6
+  hard_links=yes
+  $rm conftest*
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  touch conftest.a
+  ln conftest.a conftest.b 2>&5 || hard_links=no
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  echo "$as_me:$LINENO: result: $hard_links" >&5
+echo "${ECHO_T}$hard_links" >&6
+  if test "$hard_links" = no; then
+    { echo "$as_me:$LINENO: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&5
+echo "$as_me: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2;}
+    need_locks=warn
+  fi
+else
+  need_locks=no
+fi
+
+echo "$as_me:$LINENO: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+echo $ECHO_N "checking whether the $compiler linker ($LD) supports shared libraries... $ECHO_C" >&6
+
+  export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  case $host_os in
+  aix4* | aix5*)
+    # If we're using GNU nm, then we don't want the "-C" option.
+    # -C means demangle to AIX nm, but means don't demangle with GNU nm
+    if $NM -V 2>&1 | grep 'GNU' > /dev/null; then
+      export_symbols_cmds_CXX='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$2 == "T") || (\$2 == "D") || (\$2 == "B")) && (substr(\$3,1,1) != ".")) { print \$3 } }'\'' | sort -u > $export_symbols'
+    else
+      export_symbols_cmds_CXX='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$2 == "T") || (\$2 == "D") || (\$2 == "B")) && (substr(\$3,1,1) != ".")) { print \$3 } }'\'' | sort -u > $export_symbols'
+    fi
+    ;;
+  pw32*)
+    export_symbols_cmds_CXX="$ltdll_cmds"
+  ;;
+  cygwin* | mingw*)
+    export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGS] /s/.* \([^ ]*\)/\1 DATA/'\'' | $SED -e '\''/^[AITW] /s/.* //'\'' | sort | uniq > $export_symbols'
+  ;;
+  *)
+    export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  ;;
+  esac
+
+echo "$as_me:$LINENO: result: $ld_shlibs_CXX" >&5
+echo "${ECHO_T}$ld_shlibs_CXX" >&6
+test "$ld_shlibs_CXX" = no && can_build_shared=no
+
+variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
+if test "$GCC" = yes; then
+  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+fi
+
+#
+# Do we need to explicitly link libc?
+#
+case "x$archive_cmds_need_lc_CXX" in
+x|xyes)
+  # Assume -lc should be added
+  archive_cmds_need_lc_CXX=yes
+
+  if test "$enable_shared" = yes && test "$GCC" = yes; then
+    case $archive_cmds_CXX in
+    *'~'*)
+      # FIXME: we may have to deal with multi-command sequences.
+      ;;
+    '$CC '*)
+      # Test whether the compiler implicitly links with -lc since on some
+      # systems, -lgcc has to come before -lc. If gcc already passes -lc
+      # to ld, don't add -lc before -lgcc.
+      echo "$as_me:$LINENO: checking whether -lc should be explicitly linked in" >&5
+echo $ECHO_N "checking whether -lc should be explicitly linked in... $ECHO_C" >&6
+      $rm conftest*
+      printf "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+      if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } 2>conftest.err; then
+        soname=conftest
+        lib=conftest
+        libobjs=conftest.$ac_objext
+        deplibs=
+        wl=$lt_prog_compiler_wl_CXX
+        compiler_flags=-v
+        linker_flags=-v
+        verstring=
+        output_objdir=.
+        libname=conftest
+        lt_save_allow_undefined_flag=$allow_undefined_flag_CXX
+        allow_undefined_flag_CXX=
+        if { (eval echo "$as_me:$LINENO: \"$archive_cmds_CXX 2\>\&1 \| grep \" -lc \" \>/dev/null 2\>\&1\"") >&5
+  (eval $archive_cmds_CXX 2\>\&1 \| grep \" -lc \" \>/dev/null 2\>\&1) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+        then
+         archive_cmds_need_lc_CXX=no
+        else
+         archive_cmds_need_lc_CXX=yes
+        fi
+        allow_undefined_flag_CXX=$lt_save_allow_undefined_flag
+      else
+        cat conftest.err 1>&5
+      fi
+      $rm conftest*
+      echo "$as_me:$LINENO: result: $archive_cmds_need_lc_CXX" >&5
+echo "${ECHO_T}$archive_cmds_need_lc_CXX" >&6
+      ;;
+    esac
+  fi
+  ;;
+esac
+
+echo "$as_me:$LINENO: checking how to hardcode library paths into programs" >&5
+echo $ECHO_N "checking how to hardcode library paths into programs... $ECHO_C" >&6
+hardcode_action_CXX=
+if test -n "$hardcode_libdir_flag_spec_CXX" || \
+   test -n "$runpath_var CXX" || \
+   test "X$hardcode_automatic_CXX"="Xyes" ; then
+
+  # We can hardcode non-existant directories.
+  if test "$hardcode_direct_CXX" != no &&
+     # If the only mechanism to avoid hardcoding is shlibpath_var, we
+     # have to relink, otherwise we might link with an installed library
+     # when we should be linking with a yet-to-be-installed one
+     ## test "$_LT_AC_TAGVAR(hardcode_shlibpath_var, CXX)" != no &&
+     test "$hardcode_minus_L_CXX" != no; then
+    # Linking always hardcodes the temporary library directory.
+    hardcode_action_CXX=relink
+  else
+    # We can link without hardcoding, and we can hardcode nonexisting dirs.
+    hardcode_action_CXX=immediate
+  fi
+else
+  # We cannot hardcode anything, or else we can only hardcode existing
+  # directories.
+  hardcode_action_CXX=unsupported
+fi
+echo "$as_me:$LINENO: result: $hardcode_action_CXX" >&5
+echo "${ECHO_T}$hardcode_action_CXX" >&6
+
+if test "$hardcode_action_CXX" = relink; then
+  # Fast installation is not supported
+  enable_fast_install=no
+elif test "$shlibpath_overrides_runpath" = yes ||
+     test "$enable_shared" = no; then
+  # Fast installation is not necessary
+  enable_fast_install=needless
+fi
+
+striplib=
+old_striplib=
+echo "$as_me:$LINENO: checking whether stripping libraries is possible" >&5
+echo $ECHO_N "checking whether stripping libraries is possible... $ECHO_C" >&6
+if test -n "$STRIP" && $STRIP -V 2>&1 | grep "GNU strip" >/dev/null; then
+  test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
+  test -z "$striplib" && striplib="$STRIP --strip-unneeded"
+  echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+# FIXME - insert some real tests, host_os isn't really good enough
+  case $host_os in
+   darwin*)
+       if test -n "$STRIP" ; then
+         striplib="$STRIP -x"
+         echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+       else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+       ;;
+   *)
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+    ;;
+  esac
+fi
+
+echo "$as_me:$LINENO: checking dynamic linker characteristics" >&5
+echo $ECHO_N "checking dynamic linker characteristics... $ECHO_C" >&6
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+shrext=".so"
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+if test "$GCC" = yes; then
+  sys_lib_search_path_spec=`$CC -print-search-dirs | grep "^libraries:" | $SED -e "s/^libraries://" -e "s,=/,/,g"`
+  if echo "$sys_lib_search_path_spec" | grep ';' >/dev/null ; then
+    # if the path contains ";" then we assume it to be the separator
+    # otherwise default to the standard path separator (i.e. ":") - it is
+    # assumed that no part of a normal pathname contains ";" but that should
+    # okay in the real world where ";" in dirpaths is itself problematic.
+    sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+  else
+    sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED  -e "s/$PATH_SEPARATOR/ /g"`
+  fi
+else
+  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+fi
+need_lib_prefix=unknown
+hardcode_into_libs=no
+
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+need_version=unknown
+
+case $host_os in
+aix3*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
+  shlibpath_var=LIBPATH
+
+  # AIX 3 has no versioning support, so we append a major version to the name.
+  soname_spec='${libname}${release}${shared_ext}$major'
+  ;;
+
+aix4* | aix5*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  hardcode_into_libs=yes
+  if test "$host_cpu" = ia64; then
+    # AIX 5 supports IA64
+    library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}'
+    shlibpath_var=LD_LIBRARY_PATH
+  else
+    # With GCC up to 2.95.x, collect2 would create an import file
+    # for dependence libraries.  The import file would start with
+    # the line `#! .'.  This would cause the generated library to
+    # depend on `.', always an invalid library.  This was fixed in
+    # development snapshots of GCC prior to 3.0.
+    case $host_os in
+      aix4 | aix4.[01] | aix4.[01].*)
+      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
+          echo ' yes '
+          echo '#endif'; } | ${CC} -E - | grep yes > /dev/null; then
+       :
+      else
+       can_build_shared=no
+      fi
+      ;;
+    esac
+    # AIX (on Power*) has no versioning support, so currently we can not hardcode correct
+    # soname into executable. Probably we can add versioning support to
+    # collect2, so additional links can be useful in future.
+    if test "$aix_use_runtimelinking" = yes; then
+      # If using run time linking (on AIX 4.2 or later) use lib<name>.so
+      # instead of lib<name>.a to let people know that these are not
+      # typical AIX shared libraries.
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    else
+      # We preserve .a as extension for shared libraries through AIX4.2
+      # and later when we are not doing run time linking.
+      library_names_spec='${libname}${release}.a $libname.a'
+      soname_spec='${libname}${release}${shared_ext}$major'
+    fi
+    shlibpath_var=LIBPATH
+  fi
+  ;;
+
+amigaos*)
+  library_names_spec='$libname.ixlibrary $libname.a'
+  # Create ${libname}_ixlibrary.a entries in /sys/libs.
+  finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`$echo "X$lib" | $Xsed -e '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; test $rm /sys/libs/${libname}_ixlibrary.a; $show "(cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a)"; (cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a) || exit 1; done'
+  ;;
+
+beos*)
+  library_names_spec='${libname}${shared_ext}'
+  dynamic_linker="$host_os ld.so"
+  shlibpath_var=LIBRARY_PATH
+  ;;
+
+bsdi4*)
+  version_type=linux
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+  # the default ld.so.conf also contains /usr/contrib/lib and
+  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+  # libtool to hard-code these into programs
+  ;;
+
+cygwin* | mingw* | pw32*)
+  version_type=windows
+  shrext=".dll"
+  need_version=no
+  need_lib_prefix=no
+
+  case $GCC,$host_os in
+  yes,cygwin* | yes,mingw* | yes,pw32*)
+    library_names_spec='$libname.dll.a'
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \${file}`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i;echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $rm \$dlpath'
+    shlibpath_overrides_runpath=yes
+
+    case $host_os in
+    cygwin*)
+      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
+      soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+      sys_lib_search_path_spec="/lib /lib/w32api /usr/lib /usr/local/lib"
+      ;;
+    mingw*)
+      # MinGW DLLs use traditional 'lib' prefix
+      soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+      sys_lib_search_path_spec=`$CC -print-search-dirs | grep "^libraries:" | $SED -e "s/^libraries://" -e "s,=/,/,g"`
+      if echo "$sys_lib_search_path_spec" | grep ';[c-zC-Z]:/' >/dev/null; then
+        # It is most probably a Windows format PATH printed by
+        # mingw gcc, but we are running on Cygwin. Gcc prints its search
+        # path with ; separators, and with drive letters. We can handle the
+        # drive letters (cygwin fileutils understands them), so leave them,
+        # especially as we might pass files found there to a mingw objdump,
+        # which wouldn't understand a cygwinified path. Ahh.
+        sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+      else
+        sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED  -e "s/$PATH_SEPARATOR/ /g"`
+      fi
+      ;;
+    pw32*)
+      # pw32 DLLs use 'pw' prefix rather than 'lib'
+      library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/./-/g'`${versuffix}${shared_ext}'
+      ;;
+    esac
+    ;;
+
+  *)
+    library_names_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext} $libname.lib'
+    ;;
+  esac
+  dynamic_linker='Win32 ld.exe'
+  # FIXME: first we should search . and the directory the executable is in
+  shlibpath_var=PATH
+  ;;
+
+darwin* | rhapsody*)
+  dynamic_linker="$host_os dyld"
+  version_type=darwin
+  need_lib_prefix=no
+  need_version=no
+  # FIXME: Relying on posixy $() will cause problems for
+  #        cross-compilation, but unfortunately the echo tests do not
+  #        yet detect zsh echo's removal of \ escapes.
+  library_names_spec='${libname}${release}${versuffix}$shared_ext ${libname}${release}${major}$shared_ext ${libname}$shared_ext'
+  soname_spec='${libname}${release}${major}$shared_ext'
+  shlibpath_overrides_runpath=yes
+  shlibpath_var=DYLD_LIBRARY_PATH
+  shrext='$(test .$module = .yes && echo .so || echo .dylib)'
+  # Apple's gcc prints 'gcc -print-search-dirs' doesn't operate the same.
+  if $CC -v 2>&1 | grep 'Apple' >/dev/null ; then
+  sys_lib_search_path_spec=`$CC -print-search-dirs | tr "\n" "$PATH_SEPARATOR" | sed -e 's/libraries:/@libraries:/' | tr "@" "\n" | grep "^libraries:" | sed -e "s/^libraries://" -e "s,=/,/,g" -e "s,$PATH_SEPARATOR, ,g" -e "s,.*,& /lib /usr/lib /usr/local/lib,g"`
+  fi
+  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
+  ;;
+
+dgux*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+freebsd1*)
+  dynamic_linker=no
+  ;;
+
+freebsd*)
+  objformat=`test -x /usr/bin/objformat && /usr/bin/objformat || echo aout`
+  version_type=freebsd-$objformat
+  case $version_type in
+    freebsd-elf*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
+      need_version=no
+      need_lib_prefix=no
+      ;;
+    freebsd-*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix'
+      need_version=yes
+      ;;
+  esac
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_os in
+  freebsd2*)
+    shlibpath_overrides_runpath=yes
+    ;;
+  freebsd3.01* | freebsdelf3.01*)
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  *) # from 3.2 on
+    shlibpath_overrides_runpath=no
+    hardcode_into_libs=yes
+    ;;
+  esac
+  ;;
+
+gnu*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  hardcode_into_libs=yes
+  ;;
+
+hpux9* | hpux10* | hpux11*)
+  # Give a soname corresponding to the major version so that dld.sl refuses to
+  # link against other versions.
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  case "$host_cpu" in
+  ia64*)
+    shrext='.so'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.so"
+    shlibpath_var=LD_LIBRARY_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    if test "X$HPUX_IA64_MODE" = X32; then
+      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+    else
+      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+    fi
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+   hppa*64*)
+     shrext='.sl'
+     hardcode_into_libs=yes
+     dynamic_linker="$host_os dld.sl"
+     shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
+     shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+     library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+     soname_spec='${libname}${release}${shared_ext}$major'
+     sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
+     sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+     ;;
+   *)
+    shrext='.sl'
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=SHLIB_PATH
+    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    ;;
+  esac
+  # HP-UX runs *really* slowly unless shared libraries are mode 555.
+  postinstall_cmds='chmod 555 $lib'
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $host_os in
+    nonstopux*) version_type=nonstopux ;;
+    *)
+       if test "$lt_cv_prog_gnu_ld" = yes; then
+               version_type=linux
+       else
+               version_type=irix
+       fi ;;
+  esac
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}'
+  case $host_os in
+  irix5* | nonstopux*)
+    libsuff= shlibsuff=
+    ;;
+  *)
+    case $LD in # libtool.m4 will add one of these switches to LD
+    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
+      libsuff= shlibsuff= libmagic=32-bit;;
+    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
+      libsuff=32 shlibsuff=N32 libmagic=N32;;
+    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
+      libsuff=64 shlibsuff=64 libmagic=64-bit;;
+    *) libsuff= shlibsuff= libmagic=never-match;;
+    esac
+    ;;
+  esac
+  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
+  sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
+  hardcode_into_libs=yes
+  ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux*oldld* | linux*aout* | linux*coff*)
+  dynamic_linker=no
+  ;;
+
+# This must be Linux ELF.
+linux*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  # We used to test for /lib/ld.so.1 and disable shared libraries on
+  # powerpc, because MkLinux only supported shared libraries with the
+  # GNU dynamic linker.  Since this was broken with cross compilers,
+  # most powerpc-linux boxes support dynamic linking these days and
+  # people can always --disable-shared, the test was removed, and we
+  # assume the GNU/Linux dynamic linker is in use.
+  dynamic_linker='GNU/Linux ld.so'
+
+  # Find out which ABI we are using (multilib Linux x86_64 hack).
+  libsuff=
+  case "$host_cpu" in
+  x86_64*|s390x*)
+    echo '#line 11240 "configure"' > conftest.$ac_ext
+    if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; then
+      case `/usr/bin/file conftest.$ac_objext` in
+      *64-bit*)
+        libsuff=64
+        ;;
+      esac
+    fi
+    rm -rf conftest*
+    ;;
+  *)
+    ;;
+  esac
+  sys_lib_dlsearch_path_spec="/lib${libsuff} /usr/lib${libsuff}"
+  sys_lib_search_path_spec="/lib${libsuff} /usr/lib${libsuff} /usr/local/lib${libsuff}"
+  ;;
+
+netbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+    dynamic_linker='NetBSD (a.out) ld.so'
+  else
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} ${libname}${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    dynamic_linker='NetBSD ld.elf_so'
+  fi
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  ;;
+
+newsos6)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+nto-qnx)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+openbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+    case $host_os in
+      openbsd2.[89] | openbsd2.[89].*)
+       shlibpath_overrides_runpath=no
+       ;;
+      *)
+       shlibpath_overrides_runpath=yes
+       ;;
+      esac
+  else
+    shlibpath_overrides_runpath=yes
+  fi
+  ;;
+
+os2*)
+  libname_spec='$name'
+  shrext=".dll"
+  need_lib_prefix=no
+  library_names_spec='$libname${shared_ext} $libname.a'
+  dynamic_linker='OS/2 ld.exe'
+  shlibpath_var=LIBPATH
+  ;;
+
+osf3* | osf4* | osf5*)
+  version_type=osf
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+  sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
+  ;;
+
+sco3.2v5*)
+  version_type=osf
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+solaris*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  # ldd complains unless libraries are executable
+  postinstall_cmds='chmod +x $lib'
+  ;;
+
+sunos4*)
+  version_type=sunos
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  if test "$with_gnu_ld" = yes; then
+    need_lib_prefix=no
+  fi
+  need_version=yes
+  ;;
+
+sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_vendor in
+    sni)
+      shlibpath_overrides_runpath=no
+      need_lib_prefix=no
+      export_dynamic_flag_spec='${wl}-Blargedynsym'
+      runpath_var=LD_RUN_PATH
+      ;;
+    siemens)
+      need_lib_prefix=no
+      ;;
+    motorola)
+      need_lib_prefix=no
+      need_version=no
+      shlibpath_overrides_runpath=no
+      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+      ;;
+  esac
+  ;;
+
+sysv4*MP*)
+  if test -d /usr/nec ;then
+    version_type=linux
+    library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
+    soname_spec='$libname${shared_ext}.$major'
+    shlibpath_var=LD_LIBRARY_PATH
+  fi
+  ;;
+
+uts4*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+*)
+  dynamic_linker=no
+  ;;
+esac
+echo "$as_me:$LINENO: result: $dynamic_linker" >&5
+echo "${ECHO_T}$dynamic_linker" >&6
+test "$dynamic_linker" = no && can_build_shared=no
+
+if test "x$enable_dlopen" != xyes; then
+  enable_dlopen=unknown
+  enable_dlopen_self=unknown
+  enable_dlopen_self_static=unknown
+else
+  lt_cv_dlopen=no
+  lt_cv_dlopen_libs=
+
+  case $host_os in
+  beos*)
+    lt_cv_dlopen="load_add_on"
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+    ;;
+
+  mingw* | pw32*)
+    lt_cv_dlopen="LoadLibrary"
+    lt_cv_dlopen_libs=
+   ;;
+
+  cygwin*)
+    lt_cv_dlopen="dlopen"
+    lt_cv_dlopen_libs=
+   ;;
+
+  darwin*)
+  # if libdl is installed we need to link against it
+    echo "$as_me:$LINENO: checking for dlopen in -ldl" >&5
+echo $ECHO_N "checking for dlopen in -ldl... $ECHO_C" >&6
+if test "${ac_cv_lib_dl_dlopen+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char dlopen ();
+int
+main ()
+{
+dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_dl_dlopen=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_dl_dlopen=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_dl_dlopen" >&5
+echo "${ECHO_T}$ac_cv_lib_dl_dlopen" >&6
+if test $ac_cv_lib_dl_dlopen = yes; then
+  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"
+else
+
+    lt_cv_dlopen="dyld"
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+
+fi
+
+   ;;
+
+  *)
+    echo "$as_me:$LINENO: checking for shl_load" >&5
+echo $ECHO_N "checking for shl_load... $ECHO_C" >&6
+if test "${ac_cv_func_shl_load+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char shl_load (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char shl_load ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_shl_load) || defined (__stub___shl_load)
+choke me
+#else
+char (*f) () = shl_load;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != shl_load;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_func_shl_load=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_func_shl_load=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_shl_load" >&5
+echo "${ECHO_T}$ac_cv_func_shl_load" >&6
+if test $ac_cv_func_shl_load = yes; then
+  lt_cv_dlopen="shl_load"
+else
+  echo "$as_me:$LINENO: checking for shl_load in -ldld" >&5
+echo $ECHO_N "checking for shl_load in -ldld... $ECHO_C" >&6
+if test "${ac_cv_lib_dld_shl_load+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldld  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char shl_load ();
+int
+main ()
+{
+shl_load ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_dld_shl_load=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_dld_shl_load=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_dld_shl_load" >&5
+echo "${ECHO_T}$ac_cv_lib_dld_shl_load" >&6
+if test $ac_cv_lib_dld_shl_load = yes; then
+  lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-dld"
+else
+  echo "$as_me:$LINENO: checking for dlopen" >&5
+echo $ECHO_N "checking for dlopen... $ECHO_C" >&6
+if test "${ac_cv_func_dlopen+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char dlopen (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char dlopen ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_dlopen) || defined (__stub___dlopen)
+choke me
+#else
+char (*f) () = dlopen;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != dlopen;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_func_dlopen=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_func_dlopen=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_dlopen" >&5
+echo "${ECHO_T}$ac_cv_func_dlopen" >&6
+if test $ac_cv_func_dlopen = yes; then
+  lt_cv_dlopen="dlopen"
+else
+  echo "$as_me:$LINENO: checking for dlopen in -ldl" >&5
+echo $ECHO_N "checking for dlopen in -ldl... $ECHO_C" >&6
+if test "${ac_cv_lib_dl_dlopen+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char dlopen ();
+int
+main ()
+{
+dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_dl_dlopen=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_dl_dlopen=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_dl_dlopen" >&5
+echo "${ECHO_T}$ac_cv_lib_dl_dlopen" >&6
+if test $ac_cv_lib_dl_dlopen = yes; then
+  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"
+else
+  echo "$as_me:$LINENO: checking for dlopen in -lsvld" >&5
+echo $ECHO_N "checking for dlopen in -lsvld... $ECHO_C" >&6
+if test "${ac_cv_lib_svld_dlopen+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lsvld  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char dlopen ();
+int
+main ()
+{
+dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_svld_dlopen=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_svld_dlopen=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_svld_dlopen" >&5
+echo "${ECHO_T}$ac_cv_lib_svld_dlopen" >&6
+if test $ac_cv_lib_svld_dlopen = yes; then
+  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld"
+else
+  echo "$as_me:$LINENO: checking for dld_link in -ldld" >&5
+echo $ECHO_N "checking for dld_link in -ldld... $ECHO_C" >&6
+if test "${ac_cv_lib_dld_dld_link+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldld  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char dld_link ();
+int
+main ()
+{
+dld_link ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_dld_dld_link=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_dld_dld_link=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_dld_dld_link" >&5
+echo "${ECHO_T}$ac_cv_lib_dld_dld_link" >&6
+if test $ac_cv_lib_dld_dld_link = yes; then
+  lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-dld"
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+    ;;
+  esac
+
+  if test "x$lt_cv_dlopen" != xno; then
+    enable_dlopen=yes
+  else
+    enable_dlopen=no
+  fi
+
+  case $lt_cv_dlopen in
+  dlopen)
+    save_CPPFLAGS="$CPPFLAGS"
+    test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
+
+    save_LDFLAGS="$LDFLAGS"
+    eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
+
+    save_LIBS="$LIBS"
+    LIBS="$lt_cv_dlopen_libs $LIBS"
+
+    echo "$as_me:$LINENO: checking whether a program can dlopen itself" >&5
+echo $ECHO_N "checking whether a program can dlopen itself... $ECHO_C" >&6
+if test "${lt_cv_dlopen_self+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+         if test "$cross_compiling" = yes; then :
+  lt_cv_dlopen_self=cross
+else
+  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+  lt_status=$lt_dlunknown
+  cat > conftest.$ac_ext <<EOF
+#line 11936 "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+#  define LT_DLGLOBAL          RTLD_GLOBAL
+#else
+#  ifdef DL_GLOBAL
+#    define LT_DLGLOBAL                DL_GLOBAL
+#  else
+#    define LT_DLGLOBAL                0
+#  endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+#  ifdef RTLD_LAZY
+#    define LT_DLLAZY_OR_NOW           RTLD_LAZY
+#  else
+#    ifdef DL_LAZY
+#      define LT_DLLAZY_OR_NOW         DL_LAZY
+#    else
+#      ifdef RTLD_NOW
+#        define LT_DLLAZY_OR_NOW       RTLD_NOW
+#      else
+#        ifdef DL_NOW
+#          define LT_DLLAZY_OR_NOW     DL_NOW
+#        else
+#          define LT_DLLAZY_OR_NOW     0
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+#ifdef __cplusplus
+extern "C" void exit (int);
+#endif
+
+void fnord() { int i=42;}
+int main ()
+{
+  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+  int status = $lt_dlunknown;
+
+  if (self)
+    {
+      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
+      else if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;
+      /* dlclose (self); */
+    }
+
+    exit (status);
+}
+EOF
+  if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && test -s conftest${ac_exeext} 2>/dev/null; then
+    (./conftest; exit; ) 2>/dev/null
+    lt_status=$?
+    case x$lt_status in
+      x$lt_dlno_uscore) lt_cv_dlopen_self=yes ;;
+      x$lt_dlneed_uscore) lt_cv_dlopen_self=yes ;;
+      x$lt_unknown|x*) lt_cv_dlopen_self=no ;;
+    esac
+  else :
+    # compilation failed
+    lt_cv_dlopen_self=no
+  fi
+fi
+rm -fr conftest*
+
+
+fi
+echo "$as_me:$LINENO: result: $lt_cv_dlopen_self" >&5
+echo "${ECHO_T}$lt_cv_dlopen_self" >&6
+
+    if test "x$lt_cv_dlopen_self" = xyes; then
+      LDFLAGS="$LDFLAGS $link_static_flag"
+      echo "$as_me:$LINENO: checking whether a statically linked program can dlopen itself" >&5
+echo $ECHO_N "checking whether a statically linked program can dlopen itself... $ECHO_C" >&6
+if test "${lt_cv_dlopen_self_static+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+         if test "$cross_compiling" = yes; then :
+  lt_cv_dlopen_self_static=cross
+else
+  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+  lt_status=$lt_dlunknown
+  cat > conftest.$ac_ext <<EOF
+#line 12034 "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+#  define LT_DLGLOBAL          RTLD_GLOBAL
+#else
+#  ifdef DL_GLOBAL
+#    define LT_DLGLOBAL                DL_GLOBAL
+#  else
+#    define LT_DLGLOBAL                0
+#  endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+#  ifdef RTLD_LAZY
+#    define LT_DLLAZY_OR_NOW           RTLD_LAZY
+#  else
+#    ifdef DL_LAZY
+#      define LT_DLLAZY_OR_NOW         DL_LAZY
+#    else
+#      ifdef RTLD_NOW
+#        define LT_DLLAZY_OR_NOW       RTLD_NOW
+#      else
+#        ifdef DL_NOW
+#          define LT_DLLAZY_OR_NOW     DL_NOW
+#        else
+#          define LT_DLLAZY_OR_NOW     0
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+#ifdef __cplusplus
+extern "C" void exit (int);
+#endif
+
+void fnord() { int i=42;}
+int main ()
+{
+  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+  int status = $lt_dlunknown;
+
+  if (self)
+    {
+      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
+      else if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;
+      /* dlclose (self); */
+    }
+
+    exit (status);
+}
+EOF
+  if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && test -s conftest${ac_exeext} 2>/dev/null; then
+    (./conftest; exit; ) 2>/dev/null
+    lt_status=$?
+    case x$lt_status in
+      x$lt_dlno_uscore) lt_cv_dlopen_self_static=yes ;;
+      x$lt_dlneed_uscore) lt_cv_dlopen_self_static=yes ;;
+      x$lt_unknown|x*) lt_cv_dlopen_self_static=no ;;
+    esac
+  else :
+    # compilation failed
+    lt_cv_dlopen_self_static=no
+  fi
+fi
+rm -fr conftest*
+
+
+fi
+echo "$as_me:$LINENO: result: $lt_cv_dlopen_self_static" >&5
+echo "${ECHO_T}$lt_cv_dlopen_self_static" >&6
+    fi
+
+    CPPFLAGS="$save_CPPFLAGS"
+    LDFLAGS="$save_LDFLAGS"
+    LIBS="$save_LIBS"
+    ;;
+  esac
+
+  case $lt_cv_dlopen_self in
+  yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
+  *) enable_dlopen_self=unknown ;;
+  esac
+
+  case $lt_cv_dlopen_self_static in
+  yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
+  *) enable_dlopen_self_static=unknown ;;
+  esac
+fi
+
+
+# The else clause should only fire when bootstrapping the
+# libtool distribution, otherwise you forgot to ship ltmain.sh
+# with your package, and you will get complaints that there are
+# no rules to generate ltmain.sh.
+if test -f "$ltmain"; then
+  # See if we are running on zsh, and set the options which allow our commands through
+  # without removal of \ escapes.
+  if test -n "${ZSH_VERSION+set}" ; then
+    setopt NO_GLOB_SUBST
+  fi
+  # Now quote all the things that may contain metacharacters while being
+  # careful not to overquote the AC_SUBSTed values.  We take copies of the
+  # variables and quote the copies for generation of the libtool script.
+  for var in echo old_CC old_CFLAGS AR AR_FLAGS EGREP RANLIB LN_S LTCC NM SED SHELL \
+    libname_spec library_names_spec soname_spec extract_expsyms_cmds \
+    old_striplib striplib file_magic_cmd finish_cmds finish_eval \
+    deplibs_check_method reload_flag reload_cmds need_locks \
+    lt_cv_sys_global_symbol_pipe lt_cv_sys_global_symbol_to_cdecl \
+    lt_cv_sys_global_symbol_to_c_name_address \
+    sys_lib_search_path_spec sys_lib_dlsearch_path_spec \
+    old_postinstall_cmds old_postuninstall_cmds \
+    compiler_CXX \
+    CC_CXX \
+    LD_CXX \
+    lt_prog_compiler_wl_CXX \
+    lt_prog_compiler_pic_CXX \
+    lt_prog_compiler_static_CXX \
+    lt_prog_compiler_no_builtin_flag_CXX \
+    export_dynamic_flag_spec_CXX \
+    thread_safe_flag_spec_CXX \
+    whole_archive_flag_spec_CXX \
+    enable_shared_with_static_runtimes_CXX \
+    old_archive_cmds_CXX \
+    old_archive_from_new_cmds_CXX \
+    predep_objects_CXX \
+    postdep_objects_CXX \
+    predeps_CXX \
+    postdeps_CXX \
+    compiler_lib_search_path_CXX \
+    archive_cmds_CXX \
+    archive_expsym_cmds_CXX \
+    postinstall_cmds_CXX \
+    postuninstall_cmds_CXX \
+    old_archive_from_expsyms_cmds_CXX \
+    allow_undefined_flag_CXX \
+    no_undefined_flag_CXX \
+    export_symbols_cmds_CXX \
+    hardcode_libdir_flag_spec_CXX \
+    hardcode_libdir_flag_spec_ld_CXX \
+    hardcode_libdir_separator_CXX \
+    hardcode_automatic_CXX \
+    module_cmds_CXX \
+    module_expsym_cmds_CXX \
+    lt_cv_prog_compiler_c_o_CXX \
+    exclude_expsyms_CXX \
+    include_expsyms_CXX; do
+
+    case $var in
+    old_archive_cmds_CXX | \
+    old_archive_from_new_cmds_CXX | \
+    archive_cmds_CXX | \
+    archive_expsym_cmds_CXX | \
+    module_cmds_CXX | \
+    module_expsym_cmds_CXX | \
+    old_archive_from_expsyms_cmds_CXX | \
+    export_symbols_cmds_CXX | \
+    extract_expsyms_cmds | reload_cmds | finish_cmds | \
+    postinstall_cmds | postuninstall_cmds | \
+    old_postinstall_cmds | old_postuninstall_cmds | \
+    sys_lib_search_path_spec | sys_lib_dlsearch_path_spec)
+      # Double-quote double-evaled strings.
+      eval "lt_$var=\\\"\`\$echo \"X\$$var\" | \$Xsed -e \"\$double_quote_subst\" -e \"\$sed_quote_subst\" -e \"\$delay_variable_subst\"\`\\\""
+      ;;
+    *)
+      eval "lt_$var=\\\"\`\$echo \"X\$$var\" | \$Xsed -e \"\$sed_quote_subst\"\`\\\""
+      ;;
+    esac
+  done
+
+  case $lt_echo in
+  *'\$0 --fallback-echo"')
+    lt_echo=`$echo "X$lt_echo" | $Xsed -e 's/\\\\\\\$0 --fallback-echo"$/$0 --fallback-echo"/'`
+    ;;
+  esac
+
+cfgfile="$ofile"
+
+  cat <<__EOF__ >> "$cfgfile"
+# ### BEGIN LIBTOOL TAG CONFIG: $tagname
+
+# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
+
+# Shell to use when invoking shell scripts.
+SHELL=$lt_SHELL
+
+# Whether or not to build shared libraries.
+build_libtool_libs=$enable_shared
+
+# Whether or not to build static libraries.
+build_old_libs=$enable_static
+
+# Whether or not to add -lc for building shared libraries.
+build_libtool_need_lc=$archive_cmds_need_lc_CXX
+
+# Whether or not to disallow shared libs when runtime libs are static
+allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes_CXX
+
+# Whether or not to optimize for fast installation.
+fast_install=$enable_fast_install
+
+# The host system.
+host_alias=$host_alias
+host=$host
+
+# An echo program that does not interpret backslashes.
+echo=$lt_echo
+
+# The archiver.
+AR=$lt_AR
+AR_FLAGS=$lt_AR_FLAGS
+
+# A C compiler.
+LTCC=$lt_LTCC
+
+# A language-specific compiler.
+CC=$lt_compiler_CXX
+
+# Is the compiler the GNU C compiler?
+with_gcc=$GCC_CXX
+
+# An ERE matcher.
+EGREP=$lt_EGREP
+
+# The linker used to build libraries.
+LD=$lt_LD_CXX
+
+# Whether we need hard or soft links.
+LN_S=$lt_LN_S
+
+# A BSD-compatible nm program.
+NM=$lt_NM
+
+# A symbol stripping program
+STRIP=$STRIP
+
+# Used to examine libraries when file_magic_cmd begins "file"
+MAGIC_CMD=$MAGIC_CMD
+
+# Used on cygwin: DLL creation program.
+DLLTOOL="$DLLTOOL"
+
+# Used on cygwin: object dumper.
+OBJDUMP="$OBJDUMP"
+
+# Used on cygwin: assembler.
+AS="$AS"
+
+# The name of the directory that contains temporary libtool files.
+objdir=$objdir
+
+# How to create reloadable object files.
+reload_flag=$lt_reload_flag
+reload_cmds=$lt_reload_cmds
+
+# How to pass a linker flag through the compiler.
+wl=$lt_lt_prog_compiler_wl_CXX
+
+# Object file suffix (normally "o").
+objext="$ac_objext"
+
+# Old archive suffix (normally "a").
+libext="$libext"
+
+# Shared library suffix (normally ".so").
+shrext='$shrext'
+
+# Executable file suffix (normally "").
+exeext="$exeext"
+
+# Additional compiler flags for building library objects.
+pic_flag=$lt_lt_prog_compiler_pic_CXX
+pic_mode=$pic_mode
+
+# What is the maximum length of a command?
+max_cmd_len=$lt_cv_sys_max_cmd_len
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o=$lt_lt_cv_prog_compiler_c_o_CXX
+
+# Must we lock files when doing compilation ?
+need_locks=$lt_need_locks
+
+# Do we need the lib prefix for modules?
+need_lib_prefix=$need_lib_prefix
+
+# Do we need a version for libraries?
+need_version=$need_version
+
+# Whether dlopen is supported.
+dlopen_support=$enable_dlopen
+
+# Whether dlopen of programs is supported.
+dlopen_self=$enable_dlopen_self
+
+# Whether dlopen of statically linked programs is supported.
+dlopen_self_static=$enable_dlopen_self_static
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag=$lt_lt_prog_compiler_static_CXX
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag_CXX
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec=$lt_export_dynamic_flag_spec_CXX
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec=$lt_whole_archive_flag_spec_CXX
+
+# Compiler flag to generate thread-safe objects.
+thread_safe_flag_spec=$lt_thread_safe_flag_spec_CXX
+
+# Library versioning type.
+version_type=$version_type
+
+# Format of library name prefix.
+libname_spec=$lt_libname_spec
+
+# List of archive names.  First name is the real one, the rest are links.
+# The last name is the one that the linker finds with -lNAME.
+library_names_spec=$lt_library_names_spec
+
+# The coded name of the library, if different from the real name.
+soname_spec=$lt_soname_spec
+
+# Commands used to build and install an old-style archive.
+RANLIB=$lt_RANLIB
+old_archive_cmds=$lt_old_archive_cmds_CXX
+old_postinstall_cmds=$lt_old_postinstall_cmds
+old_postuninstall_cmds=$lt_old_postuninstall_cmds
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=$lt_old_archive_from_new_cmds_CXX
+
+# Create a temporary old-style archive to link instead of a shared archive.
+old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds_CXX
+
+# Commands used to build and install a shared archive.
+archive_cmds=$lt_archive_cmds_CXX
+archive_expsym_cmds=$lt_archive_expsym_cmds_CXX
+postinstall_cmds=$lt_postinstall_cmds
+postuninstall_cmds=$lt_postuninstall_cmds
+
+# Commands used to build a loadable module (assumed same as above if empty)
+module_cmds=$lt_module_cmds_CXX
+module_expsym_cmds=$lt_module_expsym_cmds_CXX
+
+# Commands to strip libraries.
+old_striplib=$lt_old_striplib
+striplib=$lt_striplib
+
+# Dependencies to place before the objects being linked to create a
+# shared library.
+predep_objects=$lt_predep_objects_CXX
+
+# Dependencies to place after the objects being linked to create a
+# shared library.
+postdep_objects=$lt_postdep_objects_CXX
+
+# Dependencies to place before the objects being linked to create a
+# shared library.
+predeps=$lt_predeps_CXX
+
+# Dependencies to place after the objects being linked to create a
+# shared library.
+postdeps=$lt_postdeps_CXX
+
+# The library search path used internally by the compiler when linking
+# a shared library.
+compiler_lib_search_path=$lt_compiler_lib_search_path_CXX
+
+# Method to check whether dependent libraries are shared objects.
+deplibs_check_method=$lt_deplibs_check_method
+
+# Command to use when deplibs_check_method == file_magic.
+file_magic_cmd=$lt_file_magic_cmd
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=$lt_allow_undefined_flag_CXX
+
+# Flag that forces no undefined symbols.
+no_undefined_flag=$lt_no_undefined_flag_CXX
+
+# Commands used to finish a libtool library installation in a directory.
+finish_cmds=$lt_finish_cmds
+
+# Same as above, but a single script fragment to be evaled but not shown.
+finish_eval=$lt_finish_eval
+
+# Take the output of nm and produce a listing of raw symbols and C names.
+global_symbol_pipe=$lt_lt_cv_sys_global_symbol_pipe
+
+# Transform the output of nm in a proper C declaration
+global_symbol_to_cdecl=$lt_lt_cv_sys_global_symbol_to_cdecl
+
+# Transform the output of nm in a C name address pair
+global_symbol_to_c_name_address=$lt_lt_cv_sys_global_symbol_to_c_name_address
+
+# This is the shared library runtime path variable.
+runpath_var=$runpath_var
+
+# This is the shared library path variable.
+shlibpath_var=$shlibpath_var
+
+# Is shlibpath searched before the hard-coded library search path?
+shlibpath_overrides_runpath=$shlibpath_overrides_runpath
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=$hardcode_action_CXX
+
+# Whether we should hardcode library paths into libraries.
+hardcode_into_libs=$hardcode_into_libs
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist.
+hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec_CXX
+
+# If ld is used when linking, flag to hardcode \$libdir into
+# a binary during linking. This must work even if \$libdir does
+# not exist.
+hardcode_libdir_flag_spec_ld=$lt_hardcode_libdir_flag_spec_ld_CXX
+
+# Whether we need a single -rpath flag with a separated argument.
+hardcode_libdir_separator=$lt_hardcode_libdir_separator_CXX
+
+# Set to yes if using DIR/libNAME${shared_ext} during linking hardcodes DIR into the
+# resulting binary.
+hardcode_direct=$hardcode_direct_CXX
+
+# Set to yes if using the -LDIR flag during linking hardcodes DIR into the
+# resulting binary.
+hardcode_minus_L=$hardcode_minus_L_CXX
+
+# Set to yes if using SHLIBPATH_VAR=DIR during linking hardcodes DIR into
+# the resulting binary.
+hardcode_shlibpath_var=$hardcode_shlibpath_var_CXX
+
+# Set to yes if building a shared library automatically hardcodes DIR into the library
+# and all subsequent libraries and executables linked against it.
+hardcode_automatic=$hardcode_automatic_CXX
+
+# Variables whose values should be saved in libtool wrapper scripts and
+# restored at relink time.
+variables_saved_for_relink="$variables_saved_for_relink"
+
+# Whether libtool must link a program against all its dependency libraries.
+link_all_deplibs=$link_all_deplibs_CXX
+
+# Compile-time system search path for libraries
+sys_lib_search_path_spec=$lt_sys_lib_search_path_spec
+
+# Run-time system search path for libraries
+sys_lib_dlsearch_path_spec=$lt_sys_lib_dlsearch_path_spec
+
+# Fix the shell variable \$srcfile for the compiler.
+fix_srcfile_path="$fix_srcfile_path_CXX"
+
+# Set to yes if exported symbols are required.
+always_export_symbols=$always_export_symbols_CXX
+
+# The commands to list exported symbols.
+export_symbols_cmds=$lt_export_symbols_cmds_CXX
+
+# The commands to extract the exported symbol list from a shared archive.
+extract_expsyms_cmds=$lt_extract_expsyms_cmds
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms=$lt_exclude_expsyms_CXX
+
+# Symbols that must always be exported.
+include_expsyms=$lt_include_expsyms_CXX
+
+# ### END LIBTOOL TAG CONFIG: $tagname
+
+__EOF__
+
+
+else
+  # If there is no Makefile yet, we rely on a make rule to execute
+  # `config.status --recheck' to rerun these tests and create the
+  # libtool script then.
+  test -f Makefile && make "$ltmain"
+fi
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+CC=$lt_save_CC
+LDCXX=$LD
+LD=$lt_save_LD
+GCC=$lt_save_GCC
+with_gnu_ldcxx=$with_gnu_ld
+with_gnu_ld=$lt_save_with_gnu_ld
+lt_cv_path_LDCXX=$lt_cv_path_LD
+lt_cv_path_LD=$lt_save_path_LD
+lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld
+lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld
+
+       else
+         tagname=""
+       fi
+       ;;
+
+      F77)
+       if test -n "$F77" && test "X$F77" != "Xno"; then
+
+ac_ext=f
+ac_compile='$F77 -c $FFLAGS conftest.$ac_ext >&5'
+ac_link='$F77 -o conftest$ac_exeext $FFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_f77_compiler_gnu
+
+
+archive_cmds_need_lc_F77=no
+allow_undefined_flag_F77=
+always_export_symbols_F77=no
+archive_expsym_cmds_F77=
+export_dynamic_flag_spec_F77=
+hardcode_direct_F77=no
+hardcode_libdir_flag_spec_F77=
+hardcode_libdir_flag_spec_ld_F77=
+hardcode_libdir_separator_F77=
+hardcode_minus_L_F77=no
+hardcode_automatic_F77=no
+module_cmds_F77=
+module_expsym_cmds_F77=
+link_all_deplibs_F77=unknown
+old_archive_cmds_F77=$old_archive_cmds
+no_undefined_flag_F77=
+whole_archive_flag_spec_F77=
+enable_shared_with_static_runtimes_F77=no
+
+# Source file extension for f77 test sources.
+ac_ext=f
+
+# Object file extension for compiled f77 test sources.
+objext=o
+objext_F77=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="      subroutine t\n      return\n      end\n"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code="      program t\n      end\n"
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+
+# Allow CC to be a program name with arguments.
+lt_save_CC="$CC"
+CC=${F77-"f77"}
+compiler=$CC
+compiler_F77=$CC
+cc_basename=`$echo X"$compiler" | $Xsed -e 's%^.*/%%'`
+
+echo "$as_me:$LINENO: checking if libtool supports shared libraries" >&5
+echo $ECHO_N "checking if libtool supports shared libraries... $ECHO_C" >&6
+echo "$as_me:$LINENO: result: $can_build_shared" >&5
+echo "${ECHO_T}$can_build_shared" >&6
+
+echo "$as_me:$LINENO: checking whether to build shared libraries" >&5
+echo $ECHO_N "checking whether to build shared libraries... $ECHO_C" >&6
+test "$can_build_shared" = "no" && enable_shared=no
+
+# On AIX, shared libraries and static libraries use the same namespace, and
+# are all built from PIC.
+case "$host_os" in
+aix3*)
+  test "$enable_shared" = yes && enable_static=no
+  if test -n "$RANLIB"; then
+    archive_cmds="$archive_cmds~\$RANLIB \$lib"
+    postinstall_cmds='$RANLIB $lib'
+  fi
+  ;;
+aix4*)
+  test "$enable_shared" = yes && enable_static=no
+  ;;
+esac
+echo "$as_me:$LINENO: result: $enable_shared" >&5
+echo "${ECHO_T}$enable_shared" >&6
+
+echo "$as_me:$LINENO: checking whether to build static libraries" >&5
+echo $ECHO_N "checking whether to build static libraries... $ECHO_C" >&6
+# Make sure either enable_shared or enable_static is yes.
+test "$enable_shared" = yes || enable_static=yes
+echo "$as_me:$LINENO: result: $enable_static" >&5
+echo "${ECHO_T}$enable_static" >&6
+
+test "$ld_shlibs_F77" = no && can_build_shared=no
+
+GCC_F77="$G77"
+LD_F77="$LD"
+
+lt_prog_compiler_wl_F77=
+lt_prog_compiler_pic_F77=
+lt_prog_compiler_static_F77=
+
+echo "$as_me:$LINENO: checking for $compiler option to produce PIC" >&5
+echo $ECHO_N "checking for $compiler option to produce PIC... $ECHO_C" >&6
+
+  if test "$GCC" = yes; then
+    lt_prog_compiler_wl_F77='-Wl,'
+    lt_prog_compiler_static_F77='-static'
+
+    case $host_os in
+      aix*)
+      # All AIX code is PIC.
+      if test "$host_cpu" = ia64; then
+       # AIX 5 now supports IA64 processor
+       lt_prog_compiler_static_F77='-Bstatic'
+      fi
+      ;;
+
+    amigaos*)
+      # FIXME: we need at least 68020 code to build shared libraries, but
+      # adding the `-m68020' flag to GCC prevents building anything better,
+      # like `-m68040'.
+      lt_prog_compiler_pic_F77='-m68020 -resident32 -malways-restore-a4'
+      ;;
+
+    beos* | cygwin* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+
+    mingw* | pw32* | os2*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      lt_prog_compiler_pic_F77='-DDLL_EXPORT'
+      ;;
+
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      lt_prog_compiler_pic_F77='-fno-common'
+      ;;
+
+    msdosdjgpp*)
+      # Just because we use GCC doesn't mean we suddenly get shared libraries
+      # on systems that don't support them.
+      lt_prog_compiler_can_build_shared_F77=no
+      enable_shared=no
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+       lt_prog_compiler_pic_F77=-Kconform_pic
+      fi
+      ;;
+
+    hpux*)
+      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
+      # not for PA HP-UX.
+      case "$host_cpu" in
+      hppa*64*|ia64*)
+       # +Z the default
+       ;;
+      *)
+       lt_prog_compiler_pic_F77='-fPIC'
+       ;;
+      esac
+      ;;
+
+    *)
+      lt_prog_compiler_pic_F77='-fPIC'
+      ;;
+    esac
+  else
+    # PORTME Check for flag to pass linker flags through the system compiler.
+    case $host_os in
+    aix*)
+      lt_prog_compiler_wl_F77='-Wl,'
+      if test "$host_cpu" = ia64; then
+       # AIX 5 now supports IA64 processor
+       lt_prog_compiler_static_F77='-Bstatic'
+      else
+       lt_prog_compiler_static_F77='-bnso -bI:/lib/syscalls.exp'
+      fi
+      ;;
+
+    mingw* | pw32* | os2*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      lt_prog_compiler_pic_F77='-DDLL_EXPORT'
+      ;;
+
+    hpux9* | hpux10* | hpux11*)
+      lt_prog_compiler_wl_F77='-Wl,'
+      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
+      # not for PA HP-UX.
+      case "$host_cpu" in
+      hppa*64*|ia64*)
+       # +Z the default
+       ;;
+      *)
+       lt_prog_compiler_pic_F77='+Z'
+       ;;
+      esac
+      # Is there a better lt_prog_compiler_static that works with the bundled CC?
+      lt_prog_compiler_static_F77='${wl}-a ${wl}archive'
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      lt_prog_compiler_wl_F77='-Wl,'
+      # PIC (with -KPIC) is the default.
+      lt_prog_compiler_static_F77='-non_shared'
+      ;;
+
+    newsos6)
+      lt_prog_compiler_pic_F77='-KPIC'
+      lt_prog_compiler_static_F77='-Bstatic'
+      ;;
+
+    linux*)
+      case $CC in
+      icc|ecc)
+       lt_prog_compiler_wl_F77='-Wl,'
+       lt_prog_compiler_pic_F77='-KPIC'
+       lt_prog_compiler_static_F77='-static'
+        ;;
+      ccc)
+        lt_prog_compiler_wl_F77='-Wl,'
+        # All Alpha code is PIC.
+        lt_prog_compiler_static_F77='-non_shared'
+        ;;
+      esac
+      ;;
+
+    osf3* | osf4* | osf5*)
+      lt_prog_compiler_wl_F77='-Wl,'
+      # All OSF/1 code is PIC.
+      lt_prog_compiler_static_F77='-non_shared'
+      ;;
+
+    sco3.2v5*)
+      lt_prog_compiler_pic_F77='-Kpic'
+      lt_prog_compiler_static_F77='-dn'
+      ;;
+
+    solaris*)
+      lt_prog_compiler_wl_F77='-Wl,'
+      lt_prog_compiler_pic_F77='-KPIC'
+      lt_prog_compiler_static_F77='-Bstatic'
+      ;;
+
+    sunos4*)
+      lt_prog_compiler_wl_F77='-Qoption ld '
+      lt_prog_compiler_pic_F77='-PIC'
+      lt_prog_compiler_static_F77='-Bstatic'
+      ;;
+
+    sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+      lt_prog_compiler_wl_F77='-Wl,'
+      lt_prog_compiler_pic_F77='-KPIC'
+      lt_prog_compiler_static_F77='-Bstatic'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec ;then
+       lt_prog_compiler_pic_F77='-Kconform_pic'
+       lt_prog_compiler_static_F77='-Bstatic'
+      fi
+      ;;
+
+    uts4*)
+      lt_prog_compiler_pic_F77='-pic'
+      lt_prog_compiler_static_F77='-Bstatic'
+      ;;
+
+    *)
+      lt_prog_compiler_can_build_shared_F77=no
+      ;;
+    esac
+  fi
+
+echo "$as_me:$LINENO: result: $lt_prog_compiler_pic_F77" >&5
+echo "${ECHO_T}$lt_prog_compiler_pic_F77" >&6
+
+#
+# Check to make sure the PIC flag actually works.
+#
+if test -n "$lt_prog_compiler_pic_F77"; then
+  echo "$as_me:$LINENO: checking if $compiler PIC flag $lt_prog_compiler_pic_F77 works" >&5
+echo $ECHO_N "checking if $compiler PIC flag $lt_prog_compiler_pic_F77 works... $ECHO_C" >&6
+if test "${lt_prog_compiler_pic_works_F77+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  lt_prog_compiler_pic_works_F77=no
+  ac_outfile=conftest.$ac_objext
+   printf "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="$lt_prog_compiler_pic_F77"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:12856: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&5
+   echo "$as_me:12860: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test ! -s conftest.err; then
+       lt_prog_compiler_pic_works_F77=yes
+     fi
+   fi
+   $rm conftest*
+
+fi
+echo "$as_me:$LINENO: result: $lt_prog_compiler_pic_works_F77" >&5
+echo "${ECHO_T}$lt_prog_compiler_pic_works_F77" >&6
+
+if test x"$lt_prog_compiler_pic_works_F77" = xyes; then
+    case $lt_prog_compiler_pic_F77 in
+     "" | " "*) ;;
+     *) lt_prog_compiler_pic_F77=" $lt_prog_compiler_pic_F77" ;;
+     esac
+else
+    lt_prog_compiler_pic_F77=
+     lt_prog_compiler_can_build_shared_F77=no
+fi
+
+fi
+case "$host_os" in
+  # For platforms which do not support PIC, -DPIC is meaningless:
+  *djgpp*)
+    lt_prog_compiler_pic_F77=
+    ;;
+  *)
+    lt_prog_compiler_pic_F77="$lt_prog_compiler_pic_F77"
+    ;;
+esac
+
+echo "$as_me:$LINENO: checking if $compiler supports -c -o file.$ac_objext" >&5
+echo $ECHO_N "checking if $compiler supports -c -o file.$ac_objext... $ECHO_C" >&6
+if test "${lt_cv_prog_compiler_c_o_F77+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  lt_cv_prog_compiler_c_o_F77=no
+   $rm -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   printf "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   # According to Tom Tromey, Ian Lance Taylor reported there are C compilers
+   # that will create temporary files in the current directory regardless of
+   # the output directory.  Thus, making CWD read-only will cause this test
+   # to fail, enabling locking or at least warning the user not to do parallel
+   # builds.
+   chmod -w .
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:12923: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:12927: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test ! -s out/conftest.err; then
+       lt_cv_prog_compiler_c_o_F77=yes
+     fi
+   fi
+   chmod u+w .
+   $rm conftest* out/*
+   rmdir out
+   cd ..
+   rmdir conftest
+   $rm conftest*
+
+fi
+echo "$as_me:$LINENO: result: $lt_cv_prog_compiler_c_o_F77" >&5
+echo "${ECHO_T}$lt_cv_prog_compiler_c_o_F77" >&6
+
+
+hard_links="nottested"
+if test "$lt_cv_prog_compiler_c_o_F77" = no && test "$need_locks" != no; then
+  # do not overwrite the value of need_locks provided by the user
+  echo "$as_me:$LINENO: checking if we can lock with hard links" >&5
+echo $ECHO_N "checking if we can lock with hard links... $ECHO_C" >&6
+  hard_links=yes
+  $rm conftest*
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  touch conftest.a
+  ln conftest.a conftest.b 2>&5 || hard_links=no
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  echo "$as_me:$LINENO: result: $hard_links" >&5
+echo "${ECHO_T}$hard_links" >&6
+  if test "$hard_links" = no; then
+    { echo "$as_me:$LINENO: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&5
+echo "$as_me: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2;}
+    need_locks=warn
+  fi
+else
+  need_locks=no
+fi
+
+echo "$as_me:$LINENO: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+echo $ECHO_N "checking whether the $compiler linker ($LD) supports shared libraries... $ECHO_C" >&6
+
+  runpath_var=
+  allow_undefined_flag_F77=
+  enable_shared_with_static_runtimes_F77=no
+  archive_cmds_F77=
+  archive_expsym_cmds_F77=
+  old_archive_From_new_cmds_F77=
+  old_archive_from_expsyms_cmds_F77=
+  export_dynamic_flag_spec_F77=
+  whole_archive_flag_spec_F77=
+  thread_safe_flag_spec_F77=
+  hardcode_libdir_flag_spec_F77=
+  hardcode_libdir_flag_spec_ld_F77=
+  hardcode_libdir_separator_F77=
+  hardcode_direct_F77=no
+  hardcode_minus_L_F77=no
+  hardcode_shlibpath_var_F77=unsupported
+  link_all_deplibs_F77=unknown
+  hardcode_automatic_F77=no
+  module_cmds_F77=
+  module_expsym_cmds_F77=
+  always_export_symbols_F77=no
+  export_symbols_cmds_F77='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  # include_expsyms should be a list of space-separated symbols to be *always*
+  # included in the symbol list
+  include_expsyms_F77=
+  # exclude_expsyms can be an extended regexp of symbols to exclude
+  # it will be wrapped by ` (' and `)$', so one must not match beginning or
+  # end of line.  Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc',
+  # as well as any symbol that contains `d'.
+  exclude_expsyms_F77="_GLOBAL_OFFSET_TABLE_"
+  # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
+  # platforms (ab)use it in PIC code, but their linkers get confused if
+  # the symbol is explicitly referenced.  Since portable code cannot
+  # rely on this symbol name, it's probably fine to never include it in
+  # preloaded symbol tables.
+  extract_expsyms_cmds=
+
+  case $host_os in
+  cygwin* | mingw* | pw32*)
+    # FIXME: the MSVC++ port hasn't been tested in a loooong time
+    # When not using gcc, we currently assume that we are using
+    # Microsoft Visual C++.
+    if test "$GCC" != yes; then
+      with_gnu_ld=no
+    fi
+    ;;
+  openbsd*)
+    with_gnu_ld=no
+    ;;
+  esac
+
+  ld_shlibs_F77=yes
+  if test "$with_gnu_ld" = yes; then
+    # If archive_cmds runs LD, not CC, wlarc should be empty
+    wlarc='${wl}'
+
+    # See if GNU ld supports shared libraries.
+    case $host_os in
+    aix3* | aix4* | aix5*)
+      # On AIX/PPC, the GNU linker is very broken
+      if test "$host_cpu" != ia64; then
+       ld_shlibs_F77=no
+       cat <<EOF 1>&2
+
+*** Warning: the GNU linker, at least up to release 2.9.1, is reported
+*** to be unable to reliably create shared libraries on AIX.
+*** Therefore, libtool is disabling shared libraries support.  If you
+*** really care for shared libraries, you may want to modify your PATH
+*** so that a non-GNU linker is found, and then restart.
+
+EOF
+      fi
+      ;;
+
+    amigaos*)
+      archive_cmds_F77='$rm $output_objdir/a2ixlibrary.data~$echo "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$echo "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$echo "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$echo "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+      hardcode_libdir_flag_spec_F77='-L$libdir'
+      hardcode_minus_L_F77=yes
+
+      # Samuel A. Falvo II <kc5tja@dolphin.openprojects.net> reports
+      # that the semantics of dynamic libraries on AmigaOS, at least up
+      # to version 4, is to share data among multiple programs linked
+      # with the same dynamic library.  Since this doesn't match the
+      # behavior of shared libraries on other platforms, we can't use
+      # them.
+      ld_shlibs_F77=no
+      ;;
+
+    beos*)
+      if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
+       allow_undefined_flag_F77=unsupported
+       # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
+       # support --undefined.  This deserves some investigation.  FIXME
+       archive_cmds_F77='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+      else
+       ld_shlibs_F77=no
+      fi
+      ;;
+
+    cygwin* | mingw* | pw32*)
+      # _LT_AC_TAGVAR(hardcode_libdir_flag_spec, F77) is actually meaningless,
+      # as there is no search path for DLLs.
+      hardcode_libdir_flag_spec_F77='-L$libdir'
+      allow_undefined_flag_F77=unsupported
+      always_export_symbols_F77=no
+      enable_shared_with_static_runtimes_F77=yes
+      export_symbols_cmds_F77='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGS] /s/.* \([^ ]*\)/\1 DATA/'\'' | $SED -e '\''/^[AITW] /s/.* //'\'' | sort | uniq > $export_symbols'
+
+      if $LD --help 2>&1 | grep 'auto-import' > /dev/null; then
+        archive_cmds_F77='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--image-base=0x10000000 ${wl}--out-implib,$lib'
+       # If the export-symbols file already is a .def file (1st line
+       # is EXPORTS), use it as is; otherwise, prepend...
+       archive_expsym_cmds_F77='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+         cp $export_symbols $output_objdir/$soname.def;
+       else
+         echo EXPORTS > $output_objdir/$soname.def;
+         cat $export_symbols >> $output_objdir/$soname.def;
+       fi~
+       $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--image-base=0x10000000  ${wl}--out-implib,$lib'
+      else
+       ld_shlibs=no
+      fi
+      ;;
+
+    netbsd*)
+      if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
+       archive_cmds_F77='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
+       wlarc=
+      else
+       archive_cmds_F77='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+       archive_expsym_cmds_F77='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      fi
+      ;;
+
+    solaris* | sysv5*)
+      if $LD -v 2>&1 | grep 'BFD 2\.8' > /dev/null; then
+       ld_shlibs_F77=no
+       cat <<EOF 1>&2
+
+*** Warning: The releases 2.8.* of the GNU linker cannot reliably
+*** create shared libraries on Solaris systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.9.1 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+EOF
+      elif $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
+       archive_cmds_F77='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+       archive_expsym_cmds_F77='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+       ld_shlibs_F77=no
+      fi
+      ;;
+
+    sunos4*)
+      archive_cmds_F77='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      wlarc=
+      hardcode_direct_F77=yes
+      hardcode_shlibpath_var_F77=no
+      ;;
+
+  linux*)
+    if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
+        tmp_archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+       archive_cmds_F77="$tmp_archive_cmds"
+      supports_anon_versioning=no
+      case `$LD -v 2>/dev/null` in
+        *\ 01.* | *\ 2.[0-9].* | *\ 2.10.*) ;; # catch versions < 2.11
+        *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
+        *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
+        *\ 2.11.*) ;; # other 2.11 versions
+        *) supports_anon_versioning=yes ;;
+      esac
+      if test $supports_anon_versioning = yes; then
+        archive_expsym_cmds_F77='$echo "{ global:" > $output_objdir/$libname.ver~
+cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+$echo "local: *; };" >> $output_objdir/$libname.ver~
+        $CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
+      else
+        archive_expsym_cmds_F77="$tmp_archive_cmds"
+      fi
+    else
+      ld_shlibs_F77=no
+    fi
+    ;;
+
+    *)
+      if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
+       archive_cmds_F77='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+       archive_expsym_cmds_F77='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+       ld_shlibs_F77=no
+      fi
+      ;;
+    esac
+
+    if test "$ld_shlibs_F77" = yes; then
+      runpath_var=LD_RUN_PATH
+      hardcode_libdir_flag_spec_F77='${wl}--rpath ${wl}$libdir'
+      export_dynamic_flag_spec_F77='${wl}--export-dynamic'
+      # ancient GNU ld didn't support --whole-archive et. al.
+      if $LD --help 2>&1 | grep 'no-whole-archive' > /dev/null; then
+       whole_archive_flag_spec_F77="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+      else
+       whole_archive_flag_spec_F77=
+      fi
+    fi
+  else
+    # PORTME fill in a description of your system's linker (not GNU ld)
+    case $host_os in
+    aix3*)
+      allow_undefined_flag_F77=unsupported
+      always_export_symbols_F77=yes
+      archive_expsym_cmds_F77='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
+      # Note: this linker hardcodes the directories in LIBPATH if there
+      # are no directories specified by -L.
+      hardcode_minus_L_F77=yes
+      if test "$GCC" = yes && test -z "$link_static_flag"; then
+       # Neither direct hardcoding nor static linking is supported with a
+       # broken collect2.
+       hardcode_direct_F77=unsupported
+      fi
+      ;;
+
+    aix4* | aix5*)
+      if test "$host_cpu" = ia64; then
+       # On IA64, the linker does run time linking by default, so we don't
+       # have to do anything special.
+       aix_use_runtimelinking=no
+       exp_sym_flag='-Bexport'
+       no_entry_flag=""
+      else
+       # If we're using GNU nm, then we don't want the "-C" option.
+       # -C means demangle to AIX nm, but means don't demangle with GNU nm
+       if $NM -V 2>&1 | grep 'GNU' > /dev/null; then
+         export_symbols_cmds_F77='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$2 == "T") || (\$2 == "D") || (\$2 == "B")) && (substr(\$3,1,1) != ".")) { print \$3 } }'\'' | sort -u > $export_symbols'
+       else
+         export_symbols_cmds_F77='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$2 == "T") || (\$2 == "D") || (\$2 == "B")) && (substr(\$3,1,1) != ".")) { print \$3 } }'\'' | sort -u > $export_symbols'
+       fi
+       aix_use_runtimelinking=no
+
+       # Test if we are trying to use run time linking or normal
+       # AIX style linking. If -brtl is somewhere in LDFLAGS, we
+       # need to do runtime linking.
+       case $host_os in aix4.[23]|aix4.[23].*|aix5*)
+         for ld_flag in $LDFLAGS; do
+         if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
+           aix_use_runtimelinking=yes
+           break
+         fi
+         done
+       esac
+
+       exp_sym_flag='-bexport'
+       no_entry_flag='-bnoentry'
+      fi
+
+      # When large executables or shared objects are built, AIX ld can
+      # have problems creating the table of contents.  If linking a library
+      # or program results in "error TOC overflow" add -mminimal-toc to
+      # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+      # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+      archive_cmds_F77=''
+      hardcode_direct_F77=yes
+      hardcode_libdir_separator_F77=':'
+      link_all_deplibs_F77=yes
+
+      if test "$GCC" = yes; then
+       case $host_os in aix4.012|aix4.012.*)
+       # We only want to do this on AIX 4.2 and lower, the check
+       # below for broken collect2 doesn't work under 4.3+
+         collect2name=`${CC} -print-prog-name=collect2`
+         if test -f "$collect2name" && \
+          strings "$collect2name" | grep resolve_lib_name >/dev/null
+         then
+         # We have reworked collect2
+         hardcode_direct_F77=yes
+         else
+         # We have old collect2
+         hardcode_direct_F77=unsupported
+         # It fails to find uninstalled libraries when the uninstalled
+         # path is not listed in the libpath.  Setting hardcode_minus_L
+         # to unsupported forces relinking
+         hardcode_minus_L_F77=yes
+         hardcode_libdir_flag_spec_F77='-L$libdir'
+         hardcode_libdir_separator_F77=
+         fi
+       esac
+       shared_flag='-shared'
+      else
+       # not using gcc
+       if test "$host_cpu" = ia64; then
+       # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+       # chokes on -Wl,-G. The following line is correct:
+         shared_flag='-G'
+       else
+       if test "$aix_use_runtimelinking" = yes; then
+           shared_flag='${wl}-G'
+         else
+           shared_flag='${wl}-bM:SRE'
+       fi
+       fi
+      fi
+
+      # It seems that -bexpall does not export symbols beginning with
+      # underscore (_), so it is better to generate a list of symbols to export.
+      always_export_symbols_F77=yes
+      if test "$aix_use_runtimelinking" = yes; then
+       # Warning - without using the other runtime loading flags (-brtl),
+       # -berok will link without error, but may produce a broken library.
+       allow_undefined_flag_F77='-berok'
+       # Determine the default libpath from the value encoded in an empty executable.
+       cat >conftest.$ac_ext <<_ACEOF
+      program main
+
+      end
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
+}'`
+# Check for a 64-bit object if we didn't find anything.
+if test -z "$aix_libpath"; then aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
+}'`; fi
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
+
+       hardcode_libdir_flag_spec_F77='${wl}-blibpath:$libdir:'"$aix_libpath"
+       archive_expsym_cmds_F77="\$CC"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then echo "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols $shared_flag"
+       else
+       if test "$host_cpu" = ia64; then
+         hardcode_libdir_flag_spec_F77='${wl}-R $libdir:/usr/lib:/lib'
+         allow_undefined_flag_F77="-z nodefs"
+         archive_expsym_cmds_F77="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"
+       else
+        # Determine the default libpath from the value encoded in an empty executable.
+        cat >conftest.$ac_ext <<_ACEOF
+      program main
+
+      end
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
+}'`
+# Check for a 64-bit object if we didn't find anything.
+if test -z "$aix_libpath"; then aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
+}'`; fi
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
+
+        hardcode_libdir_flag_spec_F77='${wl}-blibpath:$libdir:'"$aix_libpath"
+         # Warning - without using the other run time loading flags,
+         # -berok will link without error, but may produce a broken library.
+         no_undefined_flag_F77=' ${wl}-bernotok'
+         allow_undefined_flag_F77=' ${wl}-berok'
+         # -bexpall does not export symbols beginning with underscore (_)
+         always_export_symbols_F77=yes
+         # Exported symbols can be pulled into shared objects from archives
+         whole_archive_flag_spec_F77=' '
+         archive_cmds_need_lc_F77=yes
+         # This is similar to how AIX traditionally builds it's shared libraries.
+         archive_expsym_cmds_F77="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bE:$export_symbols ${wl}-bnoentry${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
+       fi
+      fi
+      ;;
+
+    amigaos*)
+      archive_cmds_F77='$rm $output_objdir/a2ixlibrary.data~$echo "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$echo "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$echo "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$echo "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+      hardcode_libdir_flag_spec_F77='-L$libdir'
+      hardcode_minus_L_F77=yes
+      # see comment about different semantics on the GNU ld section
+      ld_shlibs_F77=no
+      ;;
+
+    bsdi4*)
+      export_dynamic_flag_spec_F77=-rdynamic
+      ;;
+
+    cygwin* | mingw* | pw32*)
+      # When not using gcc, we currently assume that we are using
+      # Microsoft Visual C++.
+      # hardcode_libdir_flag_spec is actually meaningless, as there is
+      # no search path for DLLs.
+      hardcode_libdir_flag_spec_F77=' '
+      allow_undefined_flag_F77=unsupported
+      # Tell ltmain to make .lib files, not .a files.
+      libext=lib
+      # Tell ltmain to make .dll files, not .so files.
+      shrext=".dll"
+      # FIXME: Setting linknames here is a bad hack.
+      archive_cmds_F77='$CC -o $lib $libobjs $compiler_flags `echo "$deplibs" | $SED -e '\''s/ -lc$//'\''` -link -dll~linknames='
+      # The linker will automatically build a .lib file if we build a DLL.
+      old_archive_From_new_cmds_F77='true'
+      # FIXME: Should let the user specify the lib program.
+      old_archive_cmds_F77='lib /OUT:$oldlib$oldobjs$old_deplibs'
+      fix_srcfile_path='`cygpath -w "$srcfile"`'
+      enable_shared_with_static_runtimes_F77=yes
+      ;;
+
+    darwin* | rhapsody*)
+    if $CC -v 2>&1 | grep 'Apple' >/dev/null ; then
+      archive_cmds_need_lc_F77=no
+      case "$host_os" in
+      rhapsody* | darwin1.[012])
+       allow_undefined_flag_F77='-undefined suppress'
+       ;;
+      *) # Darwin 1.3 on
+       test -z ${LD_TWOLEVEL_NAMESPACE} && allow_undefined_flag_F77='-flat_namespace -undefined suppress'
+       ;;
+      esac
+      # FIXME: Relying on posixy $() will cause problems for
+      #        cross-compilation, but unfortunately the echo tests do not
+      #        yet detect zsh echo's removal of \ escapes.  Also zsh mangles
+      #               `"' quotes if we put them in here... so don't!
+       lt_int_apple_cc_single_mod=no
+       output_verbose_link_cmd='echo'
+       if $CC -dumpspecs 2>&1 | grep 'single_module' >/dev/null ; then
+         lt_int_apple_cc_single_mod=yes
+       fi
+       if test "X$lt_int_apple_cc_single_mod" = Xyes ; then
+         archive_cmds_F77='$CC -dynamiclib -single_module $allow_undefined_flag -o $lib $libobjs $deplibs $compiler_flags -install_name $rpath/$soname $verstring'
+       else
+        archive_cmds_F77='$CC -r ${wl}-bind_at_load -keep_private_externs -nostdlib -o ${lib}-master.o $libobjs~$CC -dynamiclib $allow_undefined_flag -o $lib ${lib}-master.o $deplibs $compiler_flags -install_name $rpath/$soname $verstring'
+      fi
+      module_cmds_F77='$CC -bundle ${wl}-bind_at_load $allow_undefined_flag -o $lib $libobjs $deplibs$compiler_flags'
+      # Don't fix this by using the ld -exported_symbols_list flag, it doesn't exist in older darwin ld's
+        if test "X$lt_int_apple_cc_single_mod" = Xyes ; then
+          archive_expsym_cmds_F77='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -dynamiclib -single_module $allow_undefined_flag -o $lib $libobjs $deplibs $compiler_flags -install_name $rpath/$soname $verstring~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
+        else
+          archive_expsym_cmds_F77='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -r ${wl}-bind_at_load -keep_private_externs -nostdlib -o ${lib}-master.o $libobjs~$CC -dynamiclib $allow_undefined_flag -o $lib ${lib}-master.o $deplibs $compiler_flags -install_name $rpath/$soname $verstring~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
+        fi
+          module_expsym_cmds_F77='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -bundle $allow_undefined_flag  -o $lib $libobjs $deplibs$compiler_flags~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
+      hardcode_direct_F77=no
+      hardcode_automatic_F77=yes
+      hardcode_shlibpath_var_F77=unsupported
+      whole_archive_flag_spec_F77='-all_load $convenience'
+      link_all_deplibs_F77=yes
+    fi
+      ;;
+
+    dgux*)
+      archive_cmds_F77='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_libdir_flag_spec_F77='-L$libdir'
+      hardcode_shlibpath_var_F77=no
+      ;;
+
+    freebsd1*)
+      ld_shlibs_F77=no
+      ;;
+
+    # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
+    # support.  Future versions do this automatically, but an explicit c++rt0.o
+    # does not break anything, and helps significantly (at the cost of a little
+    # extra space).
+    freebsd2.2*)
+      archive_cmds_F77='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
+      hardcode_libdir_flag_spec_F77='-R$libdir'
+      hardcode_direct_F77=yes
+      hardcode_shlibpath_var_F77=no
+      ;;
+
+    # Unfortunately, older versions of FreeBSD 2 do not have this feature.
+    freebsd2*)
+      archive_cmds_F77='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_direct_F77=yes
+      hardcode_minus_L_F77=yes
+      hardcode_shlibpath_var_F77=no
+      ;;
+
+    # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
+    freebsd*)
+      archive_cmds_F77='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
+      hardcode_libdir_flag_spec_F77='-R$libdir'
+      hardcode_direct_F77=yes
+      hardcode_shlibpath_var_F77=no
+      ;;
+
+    hpux9*)
+      if test "$GCC" = yes; then
+       archive_cmds_F77='$rm $output_objdir/$soname~$CC -shared -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+      else
+       archive_cmds_F77='$rm $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+      fi
+      hardcode_libdir_flag_spec_F77='${wl}+b ${wl}$libdir'
+      hardcode_libdir_separator_F77=:
+      hardcode_direct_F77=yes
+
+      # hardcode_minus_L: Not really in the search PATH,
+      # but as the default location of the library.
+      hardcode_minus_L_F77=yes
+      export_dynamic_flag_spec_F77='${wl}-E'
+      ;;
+
+    hpux10* | hpux11*)
+      if test "$GCC" = yes -a "$with_gnu_ld" = no; then
+       case "$host_cpu" in
+       hppa*64*|ia64*)
+         archive_cmds_F77='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+         ;;
+       *)
+         archive_cmds_F77='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+         ;;
+       esac
+      else
+       case "$host_cpu" in
+       hppa*64*|ia64*)
+         archive_cmds_F77='$LD -b +h $soname -o $lib $libobjs $deplibs $linker_flags'
+         ;;
+       *)
+         archive_cmds_F77='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
+         ;;
+       esac
+      fi
+      if test "$with_gnu_ld" = no; then
+       case "$host_cpu" in
+       hppa*64*)
+         hardcode_libdir_flag_spec_F77='${wl}+b ${wl}$libdir'
+         hardcode_libdir_flag_spec_ld_F77='+b $libdir'
+         hardcode_libdir_separator_F77=:
+         hardcode_direct_F77=no
+         hardcode_shlibpath_var_F77=no
+         ;;
+       ia64*)
+         hardcode_libdir_flag_spec_F77='-L$libdir'
+         hardcode_direct_F77=no
+         hardcode_shlibpath_var_F77=no
+
+         # hardcode_minus_L: Not really in the search PATH,
+         # but as the default location of the library.
+         hardcode_minus_L_F77=yes
+         ;;
+       *)
+         hardcode_libdir_flag_spec_F77='${wl}+b ${wl}$libdir'
+         hardcode_libdir_separator_F77=:
+         hardcode_direct_F77=yes
+         export_dynamic_flag_spec_F77='${wl}-E'
+
+         # hardcode_minus_L: Not really in the search PATH,
+         # but as the default location of the library.
+         hardcode_minus_L_F77=yes
+         ;;
+       esac
+      fi
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      if test "$GCC" = yes; then
+       archive_cmds_F77='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+      else
+       archive_cmds_F77='$LD -shared $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${output_objdir}/so_locations -o $lib'
+       hardcode_libdir_flag_spec_ld_F77='-rpath $libdir'
+      fi
+      hardcode_libdir_flag_spec_F77='${wl}-rpath ${wl}$libdir'
+      hardcode_libdir_separator_F77=:
+      link_all_deplibs_F77=yes
+      ;;
+
+    netbsd*)
+      if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
+       archive_cmds_F77='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
+      else
+       archive_cmds_F77='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
+      fi
+      hardcode_libdir_flag_spec_F77='-R$libdir'
+      hardcode_direct_F77=yes
+      hardcode_shlibpath_var_F77=no
+      ;;
+
+    newsos6)
+      archive_cmds_F77='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_direct_F77=yes
+      hardcode_libdir_flag_spec_F77='${wl}-rpath ${wl}$libdir'
+      hardcode_libdir_separator_F77=:
+      hardcode_shlibpath_var_F77=no
+      ;;
+
+    openbsd*)
+      hardcode_direct_F77=yes
+      hardcode_shlibpath_var_F77=no
+      if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+       archive_cmds_F77='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+       hardcode_libdir_flag_spec_F77='${wl}-rpath,$libdir'
+       export_dynamic_flag_spec_F77='${wl}-E'
+      else
+       case $host_os in
+        openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*)
+          archive_cmds_F77='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+          hardcode_libdir_flag_spec_F77='-R$libdir'
+          ;;
+        *)
+          archive_cmds_F77='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+          hardcode_libdir_flag_spec_F77='${wl}-rpath,$libdir'
+          ;;
+       esac
+      fi
+      ;;
+
+    os2*)
+      hardcode_libdir_flag_spec_F77='-L$libdir'
+      hardcode_minus_L_F77=yes
+      allow_undefined_flag_F77=unsupported
+      archive_cmds_F77='$echo "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$echo "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~$echo DATA >> $output_objdir/$libname.def~$echo " SINGLE NONSHARED" >> $output_objdir/$libname.def~$echo EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def'
+      old_archive_From_new_cmds_F77='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
+      ;;
+
+    osf3*)
+      if test "$GCC" = yes; then
+       allow_undefined_flag_F77=' ${wl}-expect_unresolved ${wl}\*'
+       archive_cmds_F77='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+      else
+       allow_undefined_flag_F77=' -expect_unresolved \*'
+       archive_cmds_F77='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${output_objdir}/so_locations -o $lib'
+      fi
+      hardcode_libdir_flag_spec_F77='${wl}-rpath ${wl}$libdir'
+      hardcode_libdir_separator_F77=:
+      ;;
+
+    osf4* | osf5*)     # as osf3* with the addition of -msym flag
+      if test "$GCC" = yes; then
+       allow_undefined_flag_F77=' ${wl}-expect_unresolved ${wl}\*'
+       archive_cmds_F77='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+       hardcode_libdir_flag_spec_F77='${wl}-rpath ${wl}$libdir'
+      else
+       allow_undefined_flag_F77=' -expect_unresolved \*'
+       archive_cmds_F77='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -msym -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${output_objdir}/so_locations -o $lib'
+       archive_expsym_cmds_F77='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; echo "-hidden">> $lib.exp~
+       $LD -shared${allow_undefined_flag} -input $lib.exp $linker_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib~$rm $lib.exp'
+
+       # Both c and cxx compiler support -rpath directly
+       hardcode_libdir_flag_spec_F77='-rpath $libdir'
+      fi
+      hardcode_libdir_separator_F77=:
+      ;;
+
+    sco3.2v5*)
+      archive_cmds_F77='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_shlibpath_var_F77=no
+      export_dynamic_flag_spec_F77='${wl}-Bexport'
+      runpath_var=LD_RUN_PATH
+      hardcode_runpath_var=yes
+      ;;
+
+    solaris*)
+      no_undefined_flag_F77=' -z text'
+      if test "$GCC" = yes; then
+       archive_cmds_F77='$CC -shared ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+       archive_expsym_cmds_F77='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+         $CC -shared ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$rm $lib.exp'
+      else
+       archive_cmds_F77='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
+       archive_expsym_cmds_F77='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+       $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
+      fi
+      hardcode_libdir_flag_spec_F77='-R$libdir'
+      hardcode_shlibpath_var_F77=no
+      case $host_os in
+      solaris2.[0-5] | solaris2.[0-5].*) ;;
+      *) # Supported since Solaris 2.6 (maybe 2.5.1?)
+       whole_archive_flag_spec_F77='-z allextract$convenience -z defaultextract' ;;
+      esac
+      link_all_deplibs_F77=yes
+      ;;
+
+    sunos4*)
+      if test "x$host_vendor" = xsequent; then
+       # Use $CC to link under sequent, because it throws in some extra .o
+       # files that make .init and .fini sections work.
+       archive_cmds_F77='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+       archive_cmds_F77='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      hardcode_libdir_flag_spec_F77='-L$libdir'
+      hardcode_direct_F77=yes
+      hardcode_minus_L_F77=yes
+      hardcode_shlibpath_var_F77=no
+      ;;
+
+    sysv4)
+      case $host_vendor in
+       sni)
+         archive_cmds_F77='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+         hardcode_direct_F77=yes # is this really true???
+       ;;
+       siemens)
+         ## LD is ld it makes a PLAMLIB
+         ## CC just makes a GrossModule.
+         archive_cmds_F77='$LD -G -o $lib $libobjs $deplibs $linker_flags'
+         reload_cmds_F77='$CC -r -o $output$reload_objs'
+         hardcode_direct_F77=no
+        ;;
+       motorola)
+         archive_cmds_F77='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+         hardcode_direct_F77=no #Motorola manual says yes, but my tests say they lie
+       ;;
+      esac
+      runpath_var='LD_RUN_PATH'
+      hardcode_shlibpath_var_F77=no
+      ;;
+
+    sysv4.3*)
+      archive_cmds_F77='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_shlibpath_var_F77=no
+      export_dynamic_flag_spec_F77='-Bexport'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+       archive_cmds_F77='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+       hardcode_shlibpath_var_F77=no
+       runpath_var=LD_RUN_PATH
+       hardcode_runpath_var=yes
+       ld_shlibs_F77=yes
+      fi
+      ;;
+
+    sysv4.2uw2*)
+      archive_cmds_F77='$LD -G -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_direct_F77=yes
+      hardcode_minus_L_F77=no
+      hardcode_shlibpath_var_F77=no
+      hardcode_runpath_var=yes
+      runpath_var=LD_RUN_PATH
+      ;;
+
+   sysv5OpenUNIX8* | sysv5UnixWare7* |  sysv5uw[78]* | unixware7*)
+      no_undefined_flag_F77='${wl}-z ${wl}text'
+      if test "$GCC" = yes; then
+       archive_cmds_F77='$CC -shared ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+       archive_cmds_F77='$CC -G ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      runpath_var='LD_RUN_PATH'
+      hardcode_shlibpath_var_F77=no
+      ;;
+
+    sysv5*)
+      no_undefined_flag_F77=' -z text'
+      # $CC -shared without GNU ld will not create a library from C++
+      # object files and a static libstdc++, better avoid it by now
+      archive_cmds_F77='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      archive_expsym_cmds_F77='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+               $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
+      hardcode_libdir_flag_spec_F77=
+      hardcode_shlibpath_var_F77=no
+      runpath_var='LD_RUN_PATH'
+      ;;
+
+    uts4*)
+      archive_cmds_F77='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_libdir_flag_spec_F77='-L$libdir'
+      hardcode_shlibpath_var_F77=no
+      ;;
+
+    *)
+      ld_shlibs_F77=no
+      ;;
+    esac
+  fi
+
+echo "$as_me:$LINENO: result: $ld_shlibs_F77" >&5
+echo "${ECHO_T}$ld_shlibs_F77" >&6
+test "$ld_shlibs_F77" = no && can_build_shared=no
+
+variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
+if test "$GCC" = yes; then
+  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+fi
+
+#
+# Do we need to explicitly link libc?
+#
+case "x$archive_cmds_need_lc_F77" in
+x|xyes)
+  # Assume -lc should be added
+  archive_cmds_need_lc_F77=yes
+
+  if test "$enable_shared" = yes && test "$GCC" = yes; then
+    case $archive_cmds_F77 in
+    *'~'*)
+      # FIXME: we may have to deal with multi-command sequences.
+      ;;
+    '$CC '*)
+      # Test whether the compiler implicitly links with -lc since on some
+      # systems, -lgcc has to come before -lc. If gcc already passes -lc
+      # to ld, don't add -lc before -lgcc.
+      echo "$as_me:$LINENO: checking whether -lc should be explicitly linked in" >&5
+echo $ECHO_N "checking whether -lc should be explicitly linked in... $ECHO_C" >&6
+      $rm conftest*
+      printf "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+      if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } 2>conftest.err; then
+        soname=conftest
+        lib=conftest
+        libobjs=conftest.$ac_objext
+        deplibs=
+        wl=$lt_prog_compiler_wl_F77
+        compiler_flags=-v
+        linker_flags=-v
+        verstring=
+        output_objdir=.
+        libname=conftest
+        lt_save_allow_undefined_flag=$allow_undefined_flag_F77
+        allow_undefined_flag_F77=
+        if { (eval echo "$as_me:$LINENO: \"$archive_cmds_F77 2\>\&1 \| grep \" -lc \" \>/dev/null 2\>\&1\"") >&5
+  (eval $archive_cmds_F77 2\>\&1 \| grep \" -lc \" \>/dev/null 2\>\&1) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+        then
+         archive_cmds_need_lc_F77=no
+        else
+         archive_cmds_need_lc_F77=yes
+        fi
+        allow_undefined_flag_F77=$lt_save_allow_undefined_flag
+      else
+        cat conftest.err 1>&5
+      fi
+      $rm conftest*
+      echo "$as_me:$LINENO: result: $archive_cmds_need_lc_F77" >&5
+echo "${ECHO_T}$archive_cmds_need_lc_F77" >&6
+      ;;
+    esac
+  fi
+  ;;
+esac
+
+echo "$as_me:$LINENO: checking how to hardcode library paths into programs" >&5
+echo $ECHO_N "checking how to hardcode library paths into programs... $ECHO_C" >&6
+hardcode_action_F77=
+if test -n "$hardcode_libdir_flag_spec_F77" || \
+   test -n "$runpath_var F77" || \
+   test "X$hardcode_automatic_F77"="Xyes" ; then
+
+  # We can hardcode non-existant directories.
+  if test "$hardcode_direct_F77" != no &&
+     # If the only mechanism to avoid hardcoding is shlibpath_var, we
+     # have to relink, otherwise we might link with an installed library
+     # when we should be linking with a yet-to-be-installed one
+     ## test "$_LT_AC_TAGVAR(hardcode_shlibpath_var, F77)" != no &&
+     test "$hardcode_minus_L_F77" != no; then
+    # Linking always hardcodes the temporary library directory.
+    hardcode_action_F77=relink
+  else
+    # We can link without hardcoding, and we can hardcode nonexisting dirs.
+    hardcode_action_F77=immediate
+  fi
+else
+  # We cannot hardcode anything, or else we can only hardcode existing
+  # directories.
+  hardcode_action_F77=unsupported
+fi
+echo "$as_me:$LINENO: result: $hardcode_action_F77" >&5
+echo "${ECHO_T}$hardcode_action_F77" >&6
+
+if test "$hardcode_action_F77" = relink; then
+  # Fast installation is not supported
+  enable_fast_install=no
+elif test "$shlibpath_overrides_runpath" = yes ||
+     test "$enable_shared" = no; then
+  # Fast installation is not necessary
+  enable_fast_install=needless
+fi
+
+striplib=
+old_striplib=
+echo "$as_me:$LINENO: checking whether stripping libraries is possible" >&5
+echo $ECHO_N "checking whether stripping libraries is possible... $ECHO_C" >&6
+if test -n "$STRIP" && $STRIP -V 2>&1 | grep "GNU strip" >/dev/null; then
+  test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
+  test -z "$striplib" && striplib="$STRIP --strip-unneeded"
+  echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+# FIXME - insert some real tests, host_os isn't really good enough
+  case $host_os in
+   darwin*)
+       if test -n "$STRIP" ; then
+         striplib="$STRIP -x"
+         echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+       else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+       ;;
+   *)
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+    ;;
+  esac
+fi
+
+echo "$as_me:$LINENO: checking dynamic linker characteristics" >&5
+echo $ECHO_N "checking dynamic linker characteristics... $ECHO_C" >&6
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+shrext=".so"
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+if test "$GCC" = yes; then
+  sys_lib_search_path_spec=`$CC -print-search-dirs | grep "^libraries:" | $SED -e "s/^libraries://" -e "s,=/,/,g"`
+  if echo "$sys_lib_search_path_spec" | grep ';' >/dev/null ; then
+    # if the path contains ";" then we assume it to be the separator
+    # otherwise default to the standard path separator (i.e. ":") - it is
+    # assumed that no part of a normal pathname contains ";" but that should
+    # okay in the real world where ";" in dirpaths is itself problematic.
+    sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+  else
+    sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED  -e "s/$PATH_SEPARATOR/ /g"`
+  fi
+else
+  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+fi
+need_lib_prefix=unknown
+hardcode_into_libs=no
+
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+need_version=unknown
+
+case $host_os in
+aix3*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
+  shlibpath_var=LIBPATH
+
+  # AIX 3 has no versioning support, so we append a major version to the name.
+  soname_spec='${libname}${release}${shared_ext}$major'
+  ;;
+
+aix4* | aix5*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  hardcode_into_libs=yes
+  if test "$host_cpu" = ia64; then
+    # AIX 5 supports IA64
+    library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}'
+    shlibpath_var=LD_LIBRARY_PATH
+  else
+    # With GCC up to 2.95.x, collect2 would create an import file
+    # for dependence libraries.  The import file would start with
+    # the line `#! .'.  This would cause the generated library to
+    # depend on `.', always an invalid library.  This was fixed in
+    # development snapshots of GCC prior to 3.0.
+    case $host_os in
+      aix4 | aix4.[01] | aix4.[01].*)
+      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
+          echo ' yes '
+          echo '#endif'; } | ${CC} -E - | grep yes > /dev/null; then
+       :
+      else
+       can_build_shared=no
+      fi
+      ;;
+    esac
+    # AIX (on Power*) has no versioning support, so currently we can not hardcode correct
+    # soname into executable. Probably we can add versioning support to
+    # collect2, so additional links can be useful in future.
+    if test "$aix_use_runtimelinking" = yes; then
+      # If using run time linking (on AIX 4.2 or later) use lib<name>.so
+      # instead of lib<name>.a to let people know that these are not
+      # typical AIX shared libraries.
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    else
+      # We preserve .a as extension for shared libraries through AIX4.2
+      # and later when we are not doing run time linking.
+      library_names_spec='${libname}${release}.a $libname.a'
+      soname_spec='${libname}${release}${shared_ext}$major'
+    fi
+    shlibpath_var=LIBPATH
+  fi
+  ;;
+
+amigaos*)
+  library_names_spec='$libname.ixlibrary $libname.a'
+  # Create ${libname}_ixlibrary.a entries in /sys/libs.
+  finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`$echo "X$lib" | $Xsed -e '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; test $rm /sys/libs/${libname}_ixlibrary.a; $show "(cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a)"; (cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a) || exit 1; done'
+  ;;
+
+beos*)
+  library_names_spec='${libname}${shared_ext}'
+  dynamic_linker="$host_os ld.so"
+  shlibpath_var=LIBRARY_PATH
+  ;;
+
+bsdi4*)
+  version_type=linux
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+  # the default ld.so.conf also contains /usr/contrib/lib and
+  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+  # libtool to hard-code these into programs
+  ;;
+
+cygwin* | mingw* | pw32*)
+  version_type=windows
+  shrext=".dll"
+  need_version=no
+  need_lib_prefix=no
+
+  case $GCC,$host_os in
+  yes,cygwin* | yes,mingw* | yes,pw32*)
+    library_names_spec='$libname.dll.a'
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \${file}`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i;echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $rm \$dlpath'
+    shlibpath_overrides_runpath=yes
+
+    case $host_os in
+    cygwin*)
+      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
+      soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+      sys_lib_search_path_spec="/lib /lib/w32api /usr/lib /usr/local/lib"
+      ;;
+    mingw*)
+      # MinGW DLLs use traditional 'lib' prefix
+      soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+      sys_lib_search_path_spec=`$CC -print-search-dirs | grep "^libraries:" | $SED -e "s/^libraries://" -e "s,=/,/,g"`
+      if echo "$sys_lib_search_path_spec" | grep ';[c-zC-Z]:/' >/dev/null; then
+        # It is most probably a Windows format PATH printed by
+        # mingw gcc, but we are running on Cygwin. Gcc prints its search
+        # path with ; separators, and with drive letters. We can handle the
+        # drive letters (cygwin fileutils understands them), so leave them,
+        # especially as we might pass files found there to a mingw objdump,
+        # which wouldn't understand a cygwinified path. Ahh.
+        sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+      else
+        sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED  -e "s/$PATH_SEPARATOR/ /g"`
+      fi
+      ;;
+    pw32*)
+      # pw32 DLLs use 'pw' prefix rather than 'lib'
+      library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/./-/g'`${versuffix}${shared_ext}'
+      ;;
+    esac
+    ;;
+
+  *)
+    library_names_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext} $libname.lib'
+    ;;
+  esac
+  dynamic_linker='Win32 ld.exe'
+  # FIXME: first we should search . and the directory the executable is in
+  shlibpath_var=PATH
+  ;;
+
+darwin* | rhapsody*)
+  dynamic_linker="$host_os dyld"
+  version_type=darwin
+  need_lib_prefix=no
+  need_version=no
+  # FIXME: Relying on posixy $() will cause problems for
+  #        cross-compilation, but unfortunately the echo tests do not
+  #        yet detect zsh echo's removal of \ escapes.
+  library_names_spec='${libname}${release}${versuffix}$shared_ext ${libname}${release}${major}$shared_ext ${libname}$shared_ext'
+  soname_spec='${libname}${release}${major}$shared_ext'
+  shlibpath_overrides_runpath=yes
+  shlibpath_var=DYLD_LIBRARY_PATH
+  shrext='$(test .$module = .yes && echo .so || echo .dylib)'
+  # Apple's gcc prints 'gcc -print-search-dirs' doesn't operate the same.
+  if $CC -v 2>&1 | grep 'Apple' >/dev/null ; then
+  sys_lib_search_path_spec=`$CC -print-search-dirs | tr "\n" "$PATH_SEPARATOR" | sed -e 's/libraries:/@libraries:/' | tr "@" "\n" | grep "^libraries:" | sed -e "s/^libraries://" -e "s,=/,/,g" -e "s,$PATH_SEPARATOR, ,g" -e "s,.*,& /lib /usr/lib /usr/local/lib,g"`
+  fi
+  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
+  ;;
+
+dgux*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+freebsd1*)
+  dynamic_linker=no
+  ;;
+
+freebsd*)
+  objformat=`test -x /usr/bin/objformat && /usr/bin/objformat || echo aout`
+  version_type=freebsd-$objformat
+  case $version_type in
+    freebsd-elf*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
+      need_version=no
+      need_lib_prefix=no
+      ;;
+    freebsd-*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix'
+      need_version=yes
+      ;;
+  esac
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_os in
+  freebsd2*)
+    shlibpath_overrides_runpath=yes
+    ;;
+  freebsd3.01* | freebsdelf3.01*)
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  *) # from 3.2 on
+    shlibpath_overrides_runpath=no
+    hardcode_into_libs=yes
+    ;;
+  esac
+  ;;
+
+gnu*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  hardcode_into_libs=yes
+  ;;
+
+hpux9* | hpux10* | hpux11*)
+  # Give a soname corresponding to the major version so that dld.sl refuses to
+  # link against other versions.
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  case "$host_cpu" in
+  ia64*)
+    shrext='.so'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.so"
+    shlibpath_var=LD_LIBRARY_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    if test "X$HPUX_IA64_MODE" = X32; then
+      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+    else
+      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+    fi
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+   hppa*64*)
+     shrext='.sl'
+     hardcode_into_libs=yes
+     dynamic_linker="$host_os dld.sl"
+     shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
+     shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+     library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+     soname_spec='${libname}${release}${shared_ext}$major'
+     sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
+     sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+     ;;
+   *)
+    shrext='.sl'
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=SHLIB_PATH
+    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    ;;
+  esac
+  # HP-UX runs *really* slowly unless shared libraries are mode 555.
+  postinstall_cmds='chmod 555 $lib'
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $host_os in
+    nonstopux*) version_type=nonstopux ;;
+    *)
+       if test "$lt_cv_prog_gnu_ld" = yes; then
+               version_type=linux
+       else
+               version_type=irix
+       fi ;;
+  esac
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}'
+  case $host_os in
+  irix5* | nonstopux*)
+    libsuff= shlibsuff=
+    ;;
+  *)
+    case $LD in # libtool.m4 will add one of these switches to LD
+    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
+      libsuff= shlibsuff= libmagic=32-bit;;
+    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
+      libsuff=32 shlibsuff=N32 libmagic=N32;;
+    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
+      libsuff=64 shlibsuff=64 libmagic=64-bit;;
+    *) libsuff= shlibsuff= libmagic=never-match;;
+    esac
+    ;;
+  esac
+  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
+  sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
+  hardcode_into_libs=yes
+  ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux*oldld* | linux*aout* | linux*coff*)
+  dynamic_linker=no
+  ;;
+
+# This must be Linux ELF.
+linux*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  # We used to test for /lib/ld.so.1 and disable shared libraries on
+  # powerpc, because MkLinux only supported shared libraries with the
+  # GNU dynamic linker.  Since this was broken with cross compilers,
+  # most powerpc-linux boxes support dynamic linking these days and
+  # people can always --disable-shared, the test was removed, and we
+  # assume the GNU/Linux dynamic linker is in use.
+  dynamic_linker='GNU/Linux ld.so'
+
+  # Find out which ABI we are using (multilib Linux x86_64 hack).
+  libsuff=
+  case "$host_cpu" in
+  x86_64*|s390x*)
+    echo '#line 14266 "configure"' > conftest.$ac_ext
+    if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; then
+      case `/usr/bin/file conftest.$ac_objext` in
+      *64-bit*)
+        libsuff=64
+        ;;
+      esac
+    fi
+    rm -rf conftest*
+    ;;
+  *)
+    ;;
+  esac
+  sys_lib_dlsearch_path_spec="/lib${libsuff} /usr/lib${libsuff}"
+  sys_lib_search_path_spec="/lib${libsuff} /usr/lib${libsuff} /usr/local/lib${libsuff}"
+  ;;
+
+netbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+    dynamic_linker='NetBSD (a.out) ld.so'
+  else
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} ${libname}${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    dynamic_linker='NetBSD ld.elf_so'
+  fi
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  ;;
+
+newsos6)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+nto-qnx)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+openbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+    case $host_os in
+      openbsd2.[89] | openbsd2.[89].*)
+       shlibpath_overrides_runpath=no
+       ;;
+      *)
+       shlibpath_overrides_runpath=yes
+       ;;
+      esac
+  else
+    shlibpath_overrides_runpath=yes
+  fi
+  ;;
+
+os2*)
+  libname_spec='$name'
+  shrext=".dll"
+  need_lib_prefix=no
+  library_names_spec='$libname${shared_ext} $libname.a'
+  dynamic_linker='OS/2 ld.exe'
+  shlibpath_var=LIBPATH
+  ;;
+
+osf3* | osf4* | osf5*)
+  version_type=osf
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+  sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
+  ;;
+
+sco3.2v5*)
+  version_type=osf
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+solaris*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  # ldd complains unless libraries are executable
+  postinstall_cmds='chmod +x $lib'
+  ;;
+
+sunos4*)
+  version_type=sunos
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  if test "$with_gnu_ld" = yes; then
+    need_lib_prefix=no
+  fi
+  need_version=yes
+  ;;
+
+sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_vendor in
+    sni)
+      shlibpath_overrides_runpath=no
+      need_lib_prefix=no
+      export_dynamic_flag_spec='${wl}-Blargedynsym'
+      runpath_var=LD_RUN_PATH
+      ;;
+    siemens)
+      need_lib_prefix=no
+      ;;
+    motorola)
+      need_lib_prefix=no
+      need_version=no
+      shlibpath_overrides_runpath=no
+      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+      ;;
+  esac
+  ;;
+
+sysv4*MP*)
+  if test -d /usr/nec ;then
+    version_type=linux
+    library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
+    soname_spec='$libname${shared_ext}.$major'
+    shlibpath_var=LD_LIBRARY_PATH
+  fi
+  ;;
+
+uts4*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+*)
+  dynamic_linker=no
+  ;;
+esac
+echo "$as_me:$LINENO: result: $dynamic_linker" >&5
+echo "${ECHO_T}$dynamic_linker" >&6
+test "$dynamic_linker" = no && can_build_shared=no
+
+
+# The else clause should only fire when bootstrapping the
+# libtool distribution, otherwise you forgot to ship ltmain.sh
+# with your package, and you will get complaints that there are
+# no rules to generate ltmain.sh.
+if test -f "$ltmain"; then
+  # See if we are running on zsh, and set the options which allow our commands through
+  # without removal of \ escapes.
+  if test -n "${ZSH_VERSION+set}" ; then
+    setopt NO_GLOB_SUBST
+  fi
+  # Now quote all the things that may contain metacharacters while being
+  # careful not to overquote the AC_SUBSTed values.  We take copies of the
+  # variables and quote the copies for generation of the libtool script.
+  for var in echo old_CC old_CFLAGS AR AR_FLAGS EGREP RANLIB LN_S LTCC NM SED SHELL \
+    libname_spec library_names_spec soname_spec extract_expsyms_cmds \
+    old_striplib striplib file_magic_cmd finish_cmds finish_eval \
+    deplibs_check_method reload_flag reload_cmds need_locks \
+    lt_cv_sys_global_symbol_pipe lt_cv_sys_global_symbol_to_cdecl \
+    lt_cv_sys_global_symbol_to_c_name_address \
+    sys_lib_search_path_spec sys_lib_dlsearch_path_spec \
+    old_postinstall_cmds old_postuninstall_cmds \
+    compiler_F77 \
+    CC_F77 \
+    LD_F77 \
+    lt_prog_compiler_wl_F77 \
+    lt_prog_compiler_pic_F77 \
+    lt_prog_compiler_static_F77 \
+    lt_prog_compiler_no_builtin_flag_F77 \
+    export_dynamic_flag_spec_F77 \
+    thread_safe_flag_spec_F77 \
+    whole_archive_flag_spec_F77 \
+    enable_shared_with_static_runtimes_F77 \
+    old_archive_cmds_F77 \
+    old_archive_from_new_cmds_F77 \
+    predep_objects_F77 \
+    postdep_objects_F77 \
+    predeps_F77 \
+    postdeps_F77 \
+    compiler_lib_search_path_F77 \
+    archive_cmds_F77 \
+    archive_expsym_cmds_F77 \
+    postinstall_cmds_F77 \
+    postuninstall_cmds_F77 \
+    old_archive_from_expsyms_cmds_F77 \
+    allow_undefined_flag_F77 \
+    no_undefined_flag_F77 \
+    export_symbols_cmds_F77 \
+    hardcode_libdir_flag_spec_F77 \
+    hardcode_libdir_flag_spec_ld_F77 \
+    hardcode_libdir_separator_F77 \
+    hardcode_automatic_F77 \
+    module_cmds_F77 \
+    module_expsym_cmds_F77 \
+    lt_cv_prog_compiler_c_o_F77 \
+    exclude_expsyms_F77 \
+    include_expsyms_F77; do
+
+    case $var in
+    old_archive_cmds_F77 | \
+    old_archive_from_new_cmds_F77 | \
+    archive_cmds_F77 | \
+    archive_expsym_cmds_F77 | \
+    module_cmds_F77 | \
+    module_expsym_cmds_F77 | \
+    old_archive_from_expsyms_cmds_F77 | \
+    export_symbols_cmds_F77 | \
+    extract_expsyms_cmds | reload_cmds | finish_cmds | \
+    postinstall_cmds | postuninstall_cmds | \
+    old_postinstall_cmds | old_postuninstall_cmds | \
+    sys_lib_search_path_spec | sys_lib_dlsearch_path_spec)
+      # Double-quote double-evaled strings.
+      eval "lt_$var=\\\"\`\$echo \"X\$$var\" | \$Xsed -e \"\$double_quote_subst\" -e \"\$sed_quote_subst\" -e \"\$delay_variable_subst\"\`\\\""
+      ;;
+    *)
+      eval "lt_$var=\\\"\`\$echo \"X\$$var\" | \$Xsed -e \"\$sed_quote_subst\"\`\\\""
+      ;;
+    esac
+  done
+
+  case $lt_echo in
+  *'\$0 --fallback-echo"')
+    lt_echo=`$echo "X$lt_echo" | $Xsed -e 's/\\\\\\\$0 --fallback-echo"$/$0 --fallback-echo"/'`
+    ;;
+  esac
+
+cfgfile="$ofile"
+
+  cat <<__EOF__ >> "$cfgfile"
+# ### BEGIN LIBTOOL TAG CONFIG: $tagname
+
+# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
+
+# Shell to use when invoking shell scripts.
+SHELL=$lt_SHELL
+
+# Whether or not to build shared libraries.
+build_libtool_libs=$enable_shared
+
+# Whether or not to build static libraries.
+build_old_libs=$enable_static
+
+# Whether or not to add -lc for building shared libraries.
+build_libtool_need_lc=$archive_cmds_need_lc_F77
+
+# Whether or not to disallow shared libs when runtime libs are static
+allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes_F77
+
+# Whether or not to optimize for fast installation.
+fast_install=$enable_fast_install
+
+# The host system.
+host_alias=$host_alias
+host=$host
+
+# An echo program that does not interpret backslashes.
+echo=$lt_echo
+
+# The archiver.
+AR=$lt_AR
+AR_FLAGS=$lt_AR_FLAGS
+
+# A C compiler.
+LTCC=$lt_LTCC
+
+# A language-specific compiler.
+CC=$lt_compiler_F77
+
+# Is the compiler the GNU C compiler?
+with_gcc=$GCC_F77
+
+# An ERE matcher.
+EGREP=$lt_EGREP
+
+# The linker used to build libraries.
+LD=$lt_LD_F77
+
+# Whether we need hard or soft links.
+LN_S=$lt_LN_S
+
+# A BSD-compatible nm program.
+NM=$lt_NM
+
+# A symbol stripping program
+STRIP=$STRIP
+
+# Used to examine libraries when file_magic_cmd begins "file"
+MAGIC_CMD=$MAGIC_CMD
+
+# Used on cygwin: DLL creation program.
+DLLTOOL="$DLLTOOL"
+
+# Used on cygwin: object dumper.
+OBJDUMP="$OBJDUMP"
+
+# Used on cygwin: assembler.
+AS="$AS"
+
+# The name of the directory that contains temporary libtool files.
+objdir=$objdir
+
+# How to create reloadable object files.
+reload_flag=$lt_reload_flag
+reload_cmds=$lt_reload_cmds
+
+# How to pass a linker flag through the compiler.
+wl=$lt_lt_prog_compiler_wl_F77
+
+# Object file suffix (normally "o").
+objext="$ac_objext"
+
+# Old archive suffix (normally "a").
+libext="$libext"
+
+# Shared library suffix (normally ".so").
+shrext='$shrext'
+
+# Executable file suffix (normally "").
+exeext="$exeext"
+
+# Additional compiler flags for building library objects.
+pic_flag=$lt_lt_prog_compiler_pic_F77
+pic_mode=$pic_mode
+
+# What is the maximum length of a command?
+max_cmd_len=$lt_cv_sys_max_cmd_len
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o=$lt_lt_cv_prog_compiler_c_o_F77
+
+# Must we lock files when doing compilation ?
+need_locks=$lt_need_locks
+
+# Do we need the lib prefix for modules?
+need_lib_prefix=$need_lib_prefix
+
+# Do we need a version for libraries?
+need_version=$need_version
+
+# Whether dlopen is supported.
+dlopen_support=$enable_dlopen
+
+# Whether dlopen of programs is supported.
+dlopen_self=$enable_dlopen_self
+
+# Whether dlopen of statically linked programs is supported.
+dlopen_self_static=$enable_dlopen_self_static
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag=$lt_lt_prog_compiler_static_F77
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag_F77
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec=$lt_export_dynamic_flag_spec_F77
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec=$lt_whole_archive_flag_spec_F77
+
+# Compiler flag to generate thread-safe objects.
+thread_safe_flag_spec=$lt_thread_safe_flag_spec_F77
+
+# Library versioning type.
+version_type=$version_type
+
+# Format of library name prefix.
+libname_spec=$lt_libname_spec
+
+# List of archive names.  First name is the real one, the rest are links.
+# The last name is the one that the linker finds with -lNAME.
+library_names_spec=$lt_library_names_spec
+
+# The coded name of the library, if different from the real name.
+soname_spec=$lt_soname_spec
+
+# Commands used to build and install an old-style archive.
+RANLIB=$lt_RANLIB
+old_archive_cmds=$lt_old_archive_cmds_F77
+old_postinstall_cmds=$lt_old_postinstall_cmds
+old_postuninstall_cmds=$lt_old_postuninstall_cmds
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=$lt_old_archive_from_new_cmds_F77
+
+# Create a temporary old-style archive to link instead of a shared archive.
+old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds_F77
+
+# Commands used to build and install a shared archive.
+archive_cmds=$lt_archive_cmds_F77
+archive_expsym_cmds=$lt_archive_expsym_cmds_F77
+postinstall_cmds=$lt_postinstall_cmds
+postuninstall_cmds=$lt_postuninstall_cmds
+
+# Commands used to build a loadable module (assumed same as above if empty)
+module_cmds=$lt_module_cmds_F77
+module_expsym_cmds=$lt_module_expsym_cmds_F77
+
+# Commands to strip libraries.
+old_striplib=$lt_old_striplib
+striplib=$lt_striplib
+
+# Dependencies to place before the objects being linked to create a
+# shared library.
+predep_objects=$lt_predep_objects_F77
+
+# Dependencies to place after the objects being linked to create a
+# shared library.
+postdep_objects=$lt_postdep_objects_F77
+
+# Dependencies to place before the objects being linked to create a
+# shared library.
+predeps=$lt_predeps_F77
+
+# Dependencies to place after the objects being linked to create a
+# shared library.
+postdeps=$lt_postdeps_F77
+
+# The library search path used internally by the compiler when linking
+# a shared library.
+compiler_lib_search_path=$lt_compiler_lib_search_path_F77
+
+# Method to check whether dependent libraries are shared objects.
+deplibs_check_method=$lt_deplibs_check_method
+
+# Command to use when deplibs_check_method == file_magic.
+file_magic_cmd=$lt_file_magic_cmd
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=$lt_allow_undefined_flag_F77
+
+# Flag that forces no undefined symbols.
+no_undefined_flag=$lt_no_undefined_flag_F77
+
+# Commands used to finish a libtool library installation in a directory.
+finish_cmds=$lt_finish_cmds
+
+# Same as above, but a single script fragment to be evaled but not shown.
+finish_eval=$lt_finish_eval
+
+# Take the output of nm and produce a listing of raw symbols and C names.
+global_symbol_pipe=$lt_lt_cv_sys_global_symbol_pipe
+
+# Transform the output of nm in a proper C declaration
+global_symbol_to_cdecl=$lt_lt_cv_sys_global_symbol_to_cdecl
+
+# Transform the output of nm in a C name address pair
+global_symbol_to_c_name_address=$lt_lt_cv_sys_global_symbol_to_c_name_address
+
+# This is the shared library runtime path variable.
+runpath_var=$runpath_var
+
+# This is the shared library path variable.
+shlibpath_var=$shlibpath_var
+
+# Is shlibpath searched before the hard-coded library search path?
+shlibpath_overrides_runpath=$shlibpath_overrides_runpath
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=$hardcode_action_F77
+
+# Whether we should hardcode library paths into libraries.
+hardcode_into_libs=$hardcode_into_libs
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist.
+hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec_F77
+
+# If ld is used when linking, flag to hardcode \$libdir into
+# a binary during linking. This must work even if \$libdir does
+# not exist.
+hardcode_libdir_flag_spec_ld=$lt_hardcode_libdir_flag_spec_ld_F77
+
+# Whether we need a single -rpath flag with a separated argument.
+hardcode_libdir_separator=$lt_hardcode_libdir_separator_F77
+
+# Set to yes if using DIR/libNAME${shared_ext} during linking hardcodes DIR into the
+# resulting binary.
+hardcode_direct=$hardcode_direct_F77
+
+# Set to yes if using the -LDIR flag during linking hardcodes DIR into the
+# resulting binary.
+hardcode_minus_L=$hardcode_minus_L_F77
+
+# Set to yes if using SHLIBPATH_VAR=DIR during linking hardcodes DIR into
+# the resulting binary.
+hardcode_shlibpath_var=$hardcode_shlibpath_var_F77
+
+# Set to yes if building a shared library automatically hardcodes DIR into the library
+# and all subsequent libraries and executables linked against it.
+hardcode_automatic=$hardcode_automatic_F77
+
+# Variables whose values should be saved in libtool wrapper scripts and
+# restored at relink time.
+variables_saved_for_relink="$variables_saved_for_relink"
+
+# Whether libtool must link a program against all its dependency libraries.
+link_all_deplibs=$link_all_deplibs_F77
+
+# Compile-time system search path for libraries
+sys_lib_search_path_spec=$lt_sys_lib_search_path_spec
+
+# Run-time system search path for libraries
+sys_lib_dlsearch_path_spec=$lt_sys_lib_dlsearch_path_spec
+
+# Fix the shell variable \$srcfile for the compiler.
+fix_srcfile_path="$fix_srcfile_path_F77"
+
+# Set to yes if exported symbols are required.
+always_export_symbols=$always_export_symbols_F77
+
+# The commands to list exported symbols.
+export_symbols_cmds=$lt_export_symbols_cmds_F77
+
+# The commands to extract the exported symbol list from a shared archive.
+extract_expsyms_cmds=$lt_extract_expsyms_cmds
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms=$lt_exclude_expsyms_F77
+
+# Symbols that must always be exported.
+include_expsyms=$lt_include_expsyms_F77
+
+# ### END LIBTOOL TAG CONFIG: $tagname
+
+__EOF__
+
+
+else
+  # If there is no Makefile yet, we rely on a make rule to execute
+  # `config.status --recheck' to rerun these tests and create the
+  # libtool script then.
+  test -f Makefile && make "$ltmain"
+fi
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+CC="$lt_save_CC"
+
+       else
+         tagname=""
+       fi
+       ;;
+
+      GCJ)
+       if test -n "$GCJ" && test "X$GCJ" != "Xno"; then
+
+
+
+# Source file extension for Java test sources.
+ac_ext=java
+
+# Object file extension for compiled Java test sources.
+objext=o
+objext_GCJ=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="class foo {}\n"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='public class conftest { public static void main(String argv) {}; }\n'
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+
+# Allow CC to be a program name with arguments.
+lt_save_CC="$CC"
+CC=${GCJ-"gcj"}
+compiler=$CC
+compiler_GCJ=$CC
+
+# GCJ did not exist at the time GCC didn't implicitly link libc in.
+archive_cmds_need_lc_GCJ=no
+
+
+lt_prog_compiler_no_builtin_flag_GCJ=
+
+if test "$GCC" = yes; then
+  lt_prog_compiler_no_builtin_flag_GCJ=' -fno-builtin'
+
+  echo "$as_me:$LINENO: checking if $compiler supports -fno-rtti -fno-exceptions" >&5
+echo $ECHO_N "checking if $compiler supports -fno-rtti -fno-exceptions... $ECHO_C" >&6
+if test "${lt_cv_prog_compiler_rtti_exceptions+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  lt_cv_prog_compiler_rtti_exceptions=no
+  ac_outfile=conftest.$ac_objext
+   printf "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="-fno-rtti -fno-exceptions"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:14912: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&5
+   echo "$as_me:14916: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test ! -s conftest.err; then
+       lt_cv_prog_compiler_rtti_exceptions=yes
+     fi
+   fi
+   $rm conftest*
+
+fi
+echo "$as_me:$LINENO: result: $lt_cv_prog_compiler_rtti_exceptions" >&5
+echo "${ECHO_T}$lt_cv_prog_compiler_rtti_exceptions" >&6
+
+if test x"$lt_cv_prog_compiler_rtti_exceptions" = xyes; then
+    lt_prog_compiler_no_builtin_flag_GCJ="$lt_prog_compiler_no_builtin_flag_GCJ -fno-rtti -fno-exceptions"
+else
+    :
+fi
+
+fi
+
+lt_prog_compiler_wl_GCJ=
+lt_prog_compiler_pic_GCJ=
+lt_prog_compiler_static_GCJ=
+
+echo "$as_me:$LINENO: checking for $compiler option to produce PIC" >&5
+echo $ECHO_N "checking for $compiler option to produce PIC... $ECHO_C" >&6
+
+  if test "$GCC" = yes; then
+    lt_prog_compiler_wl_GCJ='-Wl,'
+    lt_prog_compiler_static_GCJ='-static'
+
+    case $host_os in
+      aix*)
+      # All AIX code is PIC.
+      if test "$host_cpu" = ia64; then
+       # AIX 5 now supports IA64 processor
+       lt_prog_compiler_static_GCJ='-Bstatic'
+      fi
+      ;;
+
+    amigaos*)
+      # FIXME: we need at least 68020 code to build shared libraries, but
+      # adding the `-m68020' flag to GCC prevents building anything better,
+      # like `-m68040'.
+      lt_prog_compiler_pic_GCJ='-m68020 -resident32 -malways-restore-a4'
+      ;;
+
+    beos* | cygwin* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+
+    mingw* | pw32* | os2*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      lt_prog_compiler_pic_GCJ='-DDLL_EXPORT'
+      ;;
+
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      lt_prog_compiler_pic_GCJ='-fno-common'
+      ;;
+
+    msdosdjgpp*)
+      # Just because we use GCC doesn't mean we suddenly get shared libraries
+      # on systems that don't support them.
+      lt_prog_compiler_can_build_shared_GCJ=no
+      enable_shared=no
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+       lt_prog_compiler_pic_GCJ=-Kconform_pic
+      fi
+      ;;
+
+    hpux*)
+      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
+      # not for PA HP-UX.
+      case "$host_cpu" in
+      hppa*64*|ia64*)
+       # +Z the default
+       ;;
+      *)
+       lt_prog_compiler_pic_GCJ='-fPIC'
+       ;;
+      esac
+      ;;
+
+    *)
+      lt_prog_compiler_pic_GCJ='-fPIC'
+      ;;
+    esac
+  else
+    # PORTME Check for flag to pass linker flags through the system compiler.
+    case $host_os in
+    aix*)
+      lt_prog_compiler_wl_GCJ='-Wl,'
+      if test "$host_cpu" = ia64; then
+       # AIX 5 now supports IA64 processor
+       lt_prog_compiler_static_GCJ='-Bstatic'
+      else
+       lt_prog_compiler_static_GCJ='-bnso -bI:/lib/syscalls.exp'
+      fi
+      ;;
+
+    mingw* | pw32* | os2*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      lt_prog_compiler_pic_GCJ='-DDLL_EXPORT'
+      ;;
+
+    hpux9* | hpux10* | hpux11*)
+      lt_prog_compiler_wl_GCJ='-Wl,'
+      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
+      # not for PA HP-UX.
+      case "$host_cpu" in
+      hppa*64*|ia64*)
+       # +Z the default
+       ;;
+      *)
+       lt_prog_compiler_pic_GCJ='+Z'
+       ;;
+      esac
+      # Is there a better lt_prog_compiler_static that works with the bundled CC?
+      lt_prog_compiler_static_GCJ='${wl}-a ${wl}archive'
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      lt_prog_compiler_wl_GCJ='-Wl,'
+      # PIC (with -KPIC) is the default.
+      lt_prog_compiler_static_GCJ='-non_shared'
+      ;;
+
+    newsos6)
+      lt_prog_compiler_pic_GCJ='-KPIC'
+      lt_prog_compiler_static_GCJ='-Bstatic'
+      ;;
+
+    linux*)
+      case $CC in
+      icc|ecc)
+       lt_prog_compiler_wl_GCJ='-Wl,'
+       lt_prog_compiler_pic_GCJ='-KPIC'
+       lt_prog_compiler_static_GCJ='-static'
+        ;;
+      ccc)
+        lt_prog_compiler_wl_GCJ='-Wl,'
+        # All Alpha code is PIC.
+        lt_prog_compiler_static_GCJ='-non_shared'
+        ;;
+      esac
+      ;;
+
+    osf3* | osf4* | osf5*)
+      lt_prog_compiler_wl_GCJ='-Wl,'
+      # All OSF/1 code is PIC.
+      lt_prog_compiler_static_GCJ='-non_shared'
+      ;;
+
+    sco3.2v5*)
+      lt_prog_compiler_pic_GCJ='-Kpic'
+      lt_prog_compiler_static_GCJ='-dn'
+      ;;
+
+    solaris*)
+      lt_prog_compiler_wl_GCJ='-Wl,'
+      lt_prog_compiler_pic_GCJ='-KPIC'
+      lt_prog_compiler_static_GCJ='-Bstatic'
+      ;;
+
+    sunos4*)
+      lt_prog_compiler_wl_GCJ='-Qoption ld '
+      lt_prog_compiler_pic_GCJ='-PIC'
+      lt_prog_compiler_static_GCJ='-Bstatic'
+      ;;
+
+    sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+      lt_prog_compiler_wl_GCJ='-Wl,'
+      lt_prog_compiler_pic_GCJ='-KPIC'
+      lt_prog_compiler_static_GCJ='-Bstatic'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec ;then
+       lt_prog_compiler_pic_GCJ='-Kconform_pic'
+       lt_prog_compiler_static_GCJ='-Bstatic'
+      fi
+      ;;
+
+    uts4*)
+      lt_prog_compiler_pic_GCJ='-pic'
+      lt_prog_compiler_static_GCJ='-Bstatic'
+      ;;
+
+    *)
+      lt_prog_compiler_can_build_shared_GCJ=no
+      ;;
+    esac
+  fi
+
+echo "$as_me:$LINENO: result: $lt_prog_compiler_pic_GCJ" >&5
+echo "${ECHO_T}$lt_prog_compiler_pic_GCJ" >&6
+
+#
+# Check to make sure the PIC flag actually works.
+#
+if test -n "$lt_prog_compiler_pic_GCJ"; then
+  echo "$as_me:$LINENO: checking if $compiler PIC flag $lt_prog_compiler_pic_GCJ works" >&5
+echo $ECHO_N "checking if $compiler PIC flag $lt_prog_compiler_pic_GCJ works... $ECHO_C" >&6
+if test "${lt_prog_compiler_pic_works_GCJ+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  lt_prog_compiler_pic_works_GCJ=no
+  ac_outfile=conftest.$ac_objext
+   printf "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="$lt_prog_compiler_pic_GCJ"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:15144: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&5
+   echo "$as_me:15148: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test ! -s conftest.err; then
+       lt_prog_compiler_pic_works_GCJ=yes
+     fi
+   fi
+   $rm conftest*
+
+fi
+echo "$as_me:$LINENO: result: $lt_prog_compiler_pic_works_GCJ" >&5
+echo "${ECHO_T}$lt_prog_compiler_pic_works_GCJ" >&6
+
+if test x"$lt_prog_compiler_pic_works_GCJ" = xyes; then
+    case $lt_prog_compiler_pic_GCJ in
+     "" | " "*) ;;
+     *) lt_prog_compiler_pic_GCJ=" $lt_prog_compiler_pic_GCJ" ;;
+     esac
+else
+    lt_prog_compiler_pic_GCJ=
+     lt_prog_compiler_can_build_shared_GCJ=no
+fi
+
+fi
+case "$host_os" in
+  # For platforms which do not support PIC, -DPIC is meaningless:
+  *djgpp*)
+    lt_prog_compiler_pic_GCJ=
+    ;;
+  *)
+    lt_prog_compiler_pic_GCJ="$lt_prog_compiler_pic_GCJ"
+    ;;
+esac
+
+echo "$as_me:$LINENO: checking if $compiler supports -c -o file.$ac_objext" >&5
+echo $ECHO_N "checking if $compiler supports -c -o file.$ac_objext... $ECHO_C" >&6
+if test "${lt_cv_prog_compiler_c_o_GCJ+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  lt_cv_prog_compiler_c_o_GCJ=no
+   $rm -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   printf "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   # According to Tom Tromey, Ian Lance Taylor reported there are C compilers
+   # that will create temporary files in the current directory regardless of
+   # the output directory.  Thus, making CWD read-only will cause this test
+   # to fail, enabling locking or at least warning the user not to do parallel
+   # builds.
+   chmod -w .
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:15211: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:15215: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test ! -s out/conftest.err; then
+       lt_cv_prog_compiler_c_o_GCJ=yes
+     fi
+   fi
+   chmod u+w .
+   $rm conftest* out/*
+   rmdir out
+   cd ..
+   rmdir conftest
+   $rm conftest*
+
+fi
+echo "$as_me:$LINENO: result: $lt_cv_prog_compiler_c_o_GCJ" >&5
+echo "${ECHO_T}$lt_cv_prog_compiler_c_o_GCJ" >&6
+
+
+hard_links="nottested"
+if test "$lt_cv_prog_compiler_c_o_GCJ" = no && test "$need_locks" != no; then
+  # do not overwrite the value of need_locks provided by the user
+  echo "$as_me:$LINENO: checking if we can lock with hard links" >&5
+echo $ECHO_N "checking if we can lock with hard links... $ECHO_C" >&6
+  hard_links=yes
+  $rm conftest*
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  touch conftest.a
+  ln conftest.a conftest.b 2>&5 || hard_links=no
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  echo "$as_me:$LINENO: result: $hard_links" >&5
+echo "${ECHO_T}$hard_links" >&6
+  if test "$hard_links" = no; then
+    { echo "$as_me:$LINENO: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&5
+echo "$as_me: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2;}
+    need_locks=warn
+  fi
+else
+  need_locks=no
+fi
+
+echo "$as_me:$LINENO: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+echo $ECHO_N "checking whether the $compiler linker ($LD) supports shared libraries... $ECHO_C" >&6
+
+  runpath_var=
+  allow_undefined_flag_GCJ=
+  enable_shared_with_static_runtimes_GCJ=no
+  archive_cmds_GCJ=
+  archive_expsym_cmds_GCJ=
+  old_archive_From_new_cmds_GCJ=
+  old_archive_from_expsyms_cmds_GCJ=
+  export_dynamic_flag_spec_GCJ=
+  whole_archive_flag_spec_GCJ=
+  thread_safe_flag_spec_GCJ=
+  hardcode_libdir_flag_spec_GCJ=
+  hardcode_libdir_flag_spec_ld_GCJ=
+  hardcode_libdir_separator_GCJ=
+  hardcode_direct_GCJ=no
+  hardcode_minus_L_GCJ=no
+  hardcode_shlibpath_var_GCJ=unsupported
+  link_all_deplibs_GCJ=unknown
+  hardcode_automatic_GCJ=no
+  module_cmds_GCJ=
+  module_expsym_cmds_GCJ=
+  always_export_symbols_GCJ=no
+  export_symbols_cmds_GCJ='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  # include_expsyms should be a list of space-separated symbols to be *always*
+  # included in the symbol list
+  include_expsyms_GCJ=
+  # exclude_expsyms can be an extended regexp of symbols to exclude
+  # it will be wrapped by ` (' and `)$', so one must not match beginning or
+  # end of line.  Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc',
+  # as well as any symbol that contains `d'.
+  exclude_expsyms_GCJ="_GLOBAL_OFFSET_TABLE_"
+  # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
+  # platforms (ab)use it in PIC code, but their linkers get confused if
+  # the symbol is explicitly referenced.  Since portable code cannot
+  # rely on this symbol name, it's probably fine to never include it in
+  # preloaded symbol tables.
+  extract_expsyms_cmds=
+
+  case $host_os in
+  cygwin* | mingw* | pw32*)
+    # FIXME: the MSVC++ port hasn't been tested in a loooong time
+    # When not using gcc, we currently assume that we are using
+    # Microsoft Visual C++.
+    if test "$GCC" != yes; then
+      with_gnu_ld=no
+    fi
+    ;;
+  openbsd*)
+    with_gnu_ld=no
+    ;;
+  esac
+
+  ld_shlibs_GCJ=yes
+  if test "$with_gnu_ld" = yes; then
+    # If archive_cmds runs LD, not CC, wlarc should be empty
+    wlarc='${wl}'
+
+    # See if GNU ld supports shared libraries.
+    case $host_os in
+    aix3* | aix4* | aix5*)
+      # On AIX/PPC, the GNU linker is very broken
+      if test "$host_cpu" != ia64; then
+       ld_shlibs_GCJ=no
+       cat <<EOF 1>&2
+
+*** Warning: the GNU linker, at least up to release 2.9.1, is reported
+*** to be unable to reliably create shared libraries on AIX.
+*** Therefore, libtool is disabling shared libraries support.  If you
+*** really care for shared libraries, you may want to modify your PATH
+*** so that a non-GNU linker is found, and then restart.
+
+EOF
+      fi
+      ;;
+
+    amigaos*)
+      archive_cmds_GCJ='$rm $output_objdir/a2ixlibrary.data~$echo "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$echo "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$echo "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$echo "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+      hardcode_libdir_flag_spec_GCJ='-L$libdir'
+      hardcode_minus_L_GCJ=yes
+
+      # Samuel A. Falvo II <kc5tja@dolphin.openprojects.net> reports
+      # that the semantics of dynamic libraries on AmigaOS, at least up
+      # to version 4, is to share data among multiple programs linked
+      # with the same dynamic library.  Since this doesn't match the
+      # behavior of shared libraries on other platforms, we can't use
+      # them.
+      ld_shlibs_GCJ=no
+      ;;
+
+    beos*)
+      if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
+       allow_undefined_flag_GCJ=unsupported
+       # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
+       # support --undefined.  This deserves some investigation.  FIXME
+       archive_cmds_GCJ='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+      else
+       ld_shlibs_GCJ=no
+      fi
+      ;;
+
+    cygwin* | mingw* | pw32*)
+      # _LT_AC_TAGVAR(hardcode_libdir_flag_spec, GCJ) is actually meaningless,
+      # as there is no search path for DLLs.
+      hardcode_libdir_flag_spec_GCJ='-L$libdir'
+      allow_undefined_flag_GCJ=unsupported
+      always_export_symbols_GCJ=no
+      enable_shared_with_static_runtimes_GCJ=yes
+      export_symbols_cmds_GCJ='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGS] /s/.* \([^ ]*\)/\1 DATA/'\'' | $SED -e '\''/^[AITW] /s/.* //'\'' | sort | uniq > $export_symbols'
+
+      if $LD --help 2>&1 | grep 'auto-import' > /dev/null; then
+        archive_cmds_GCJ='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--image-base=0x10000000 ${wl}--out-implib,$lib'
+       # If the export-symbols file already is a .def file (1st line
+       # is EXPORTS), use it as is; otherwise, prepend...
+       archive_expsym_cmds_GCJ='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+         cp $export_symbols $output_objdir/$soname.def;
+       else
+         echo EXPORTS > $output_objdir/$soname.def;
+         cat $export_symbols >> $output_objdir/$soname.def;
+       fi~
+       $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--image-base=0x10000000  ${wl}--out-implib,$lib'
+      else
+       ld_shlibs=no
+      fi
+      ;;
+
+    netbsd*)
+      if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
+       archive_cmds_GCJ='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
+       wlarc=
+      else
+       archive_cmds_GCJ='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+       archive_expsym_cmds_GCJ='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      fi
+      ;;
+
+    solaris* | sysv5*)
+      if $LD -v 2>&1 | grep 'BFD 2\.8' > /dev/null; then
+       ld_shlibs_GCJ=no
+       cat <<EOF 1>&2
+
+*** Warning: The releases 2.8.* of the GNU linker cannot reliably
+*** create shared libraries on Solaris systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.9.1 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+EOF
+      elif $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
+       archive_cmds_GCJ='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+       archive_expsym_cmds_GCJ='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+       ld_shlibs_GCJ=no
+      fi
+      ;;
+
+    sunos4*)
+      archive_cmds_GCJ='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      wlarc=
+      hardcode_direct_GCJ=yes
+      hardcode_shlibpath_var_GCJ=no
+      ;;
+
+  linux*)
+    if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
+        tmp_archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+       archive_cmds_GCJ="$tmp_archive_cmds"
+      supports_anon_versioning=no
+      case `$LD -v 2>/dev/null` in
+        *\ 01.* | *\ 2.[0-9].* | *\ 2.10.*) ;; # catch versions < 2.11
+        *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
+        *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
+        *\ 2.11.*) ;; # other 2.11 versions
+        *) supports_anon_versioning=yes ;;
+      esac
+      if test $supports_anon_versioning = yes; then
+        archive_expsym_cmds_GCJ='$echo "{ global:" > $output_objdir/$libname.ver~
+cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+$echo "local: *; };" >> $output_objdir/$libname.ver~
+        $CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
+      else
+        archive_expsym_cmds_GCJ="$tmp_archive_cmds"
+      fi
+    else
+      ld_shlibs_GCJ=no
+    fi
+    ;;
+
+    *)
+      if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
+       archive_cmds_GCJ='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+       archive_expsym_cmds_GCJ='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+       ld_shlibs_GCJ=no
+      fi
+      ;;
+    esac
+
+    if test "$ld_shlibs_GCJ" = yes; then
+      runpath_var=LD_RUN_PATH
+      hardcode_libdir_flag_spec_GCJ='${wl}--rpath ${wl}$libdir'
+      export_dynamic_flag_spec_GCJ='${wl}--export-dynamic'
+      # ancient GNU ld didn't support --whole-archive et. al.
+      if $LD --help 2>&1 | grep 'no-whole-archive' > /dev/null; then
+       whole_archive_flag_spec_GCJ="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+      else
+       whole_archive_flag_spec_GCJ=
+      fi
+    fi
+  else
+    # PORTME fill in a description of your system's linker (not GNU ld)
+    case $host_os in
+    aix3*)
+      allow_undefined_flag_GCJ=unsupported
+      always_export_symbols_GCJ=yes
+      archive_expsym_cmds_GCJ='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
+      # Note: this linker hardcodes the directories in LIBPATH if there
+      # are no directories specified by -L.
+      hardcode_minus_L_GCJ=yes
+      if test "$GCC" = yes && test -z "$link_static_flag"; then
+       # Neither direct hardcoding nor static linking is supported with a
+       # broken collect2.
+       hardcode_direct_GCJ=unsupported
+      fi
+      ;;
+
+    aix4* | aix5*)
+      if test "$host_cpu" = ia64; then
+       # On IA64, the linker does run time linking by default, so we don't
+       # have to do anything special.
+       aix_use_runtimelinking=no
+       exp_sym_flag='-Bexport'
+       no_entry_flag=""
+      else
+       # If we're using GNU nm, then we don't want the "-C" option.
+       # -C means demangle to AIX nm, but means don't demangle with GNU nm
+       if $NM -V 2>&1 | grep 'GNU' > /dev/null; then
+         export_symbols_cmds_GCJ='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$2 == "T") || (\$2 == "D") || (\$2 == "B")) && (substr(\$3,1,1) != ".")) { print \$3 } }'\'' | sort -u > $export_symbols'
+       else
+         export_symbols_cmds_GCJ='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$2 == "T") || (\$2 == "D") || (\$2 == "B")) && (substr(\$3,1,1) != ".")) { print \$3 } }'\'' | sort -u > $export_symbols'
+       fi
+       aix_use_runtimelinking=no
+
+       # Test if we are trying to use run time linking or normal
+       # AIX style linking. If -brtl is somewhere in LDFLAGS, we
+       # need to do runtime linking.
+       case $host_os in aix4.[23]|aix4.[23].*|aix5*)
+         for ld_flag in $LDFLAGS; do
+         if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
+           aix_use_runtimelinking=yes
+           break
+         fi
+         done
+       esac
+
+       exp_sym_flag='-bexport'
+       no_entry_flag='-bnoentry'
+      fi
+
+      # When large executables or shared objects are built, AIX ld can
+      # have problems creating the table of contents.  If linking a library
+      # or program results in "error TOC overflow" add -mminimal-toc to
+      # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+      # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+      archive_cmds_GCJ=''
+      hardcode_direct_GCJ=yes
+      hardcode_libdir_separator_GCJ=':'
+      link_all_deplibs_GCJ=yes
+
+      if test "$GCC" = yes; then
+       case $host_os in aix4.012|aix4.012.*)
+       # We only want to do this on AIX 4.2 and lower, the check
+       # below for broken collect2 doesn't work under 4.3+
+         collect2name=`${CC} -print-prog-name=collect2`
+         if test -f "$collect2name" && \
+          strings "$collect2name" | grep resolve_lib_name >/dev/null
+         then
+         # We have reworked collect2
+         hardcode_direct_GCJ=yes
+         else
+         # We have old collect2
+         hardcode_direct_GCJ=unsupported
+         # It fails to find uninstalled libraries when the uninstalled
+         # path is not listed in the libpath.  Setting hardcode_minus_L
+         # to unsupported forces relinking
+         hardcode_minus_L_GCJ=yes
+         hardcode_libdir_flag_spec_GCJ='-L$libdir'
+         hardcode_libdir_separator_GCJ=
+         fi
+       esac
+       shared_flag='-shared'
+      else
+       # not using gcc
+       if test "$host_cpu" = ia64; then
+       # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+       # chokes on -Wl,-G. The following line is correct:
+         shared_flag='-G'
+       else
+       if test "$aix_use_runtimelinking" = yes; then
+           shared_flag='${wl}-G'
+         else
+           shared_flag='${wl}-bM:SRE'
+       fi
+       fi
+      fi
+
+      # It seems that -bexpall does not export symbols beginning with
+      # underscore (_), so it is better to generate a list of symbols to export.
+      always_export_symbols_GCJ=yes
+      if test "$aix_use_runtimelinking" = yes; then
+       # Warning - without using the other runtime loading flags (-brtl),
+       # -berok will link without error, but may produce a broken library.
+       allow_undefined_flag_GCJ='-berok'
+       # Determine the default libpath from the value encoded in an empty executable.
+       cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
+}'`
+# Check for a 64-bit object if we didn't find anything.
+if test -z "$aix_libpath"; then aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
+}'`; fi
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
+
+       hardcode_libdir_flag_spec_GCJ='${wl}-blibpath:$libdir:'"$aix_libpath"
+       archive_expsym_cmds_GCJ="\$CC"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then echo "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols $shared_flag"
+       else
+       if test "$host_cpu" = ia64; then
+         hardcode_libdir_flag_spec_GCJ='${wl}-R $libdir:/usr/lib:/lib'
+         allow_undefined_flag_GCJ="-z nodefs"
+         archive_expsym_cmds_GCJ="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"
+       else
+        # Determine the default libpath from the value encoded in an empty executable.
+        cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
+}'`
+# Check for a 64-bit object if we didn't find anything.
+if test -z "$aix_libpath"; then aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
+}'`; fi
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
+
+        hardcode_libdir_flag_spec_GCJ='${wl}-blibpath:$libdir:'"$aix_libpath"
+         # Warning - without using the other run time loading flags,
+         # -berok will link without error, but may produce a broken library.
+         no_undefined_flag_GCJ=' ${wl}-bernotok'
+         allow_undefined_flag_GCJ=' ${wl}-berok'
+         # -bexpall does not export symbols beginning with underscore (_)
+         always_export_symbols_GCJ=yes
+         # Exported symbols can be pulled into shared objects from archives
+         whole_archive_flag_spec_GCJ=' '
+         archive_cmds_need_lc_GCJ=yes
+         # This is similar to how AIX traditionally builds it's shared libraries.
+         archive_expsym_cmds_GCJ="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bE:$export_symbols ${wl}-bnoentry${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
+       fi
+      fi
+      ;;
+
+    amigaos*)
+      archive_cmds_GCJ='$rm $output_objdir/a2ixlibrary.data~$echo "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$echo "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$echo "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$echo "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+      hardcode_libdir_flag_spec_GCJ='-L$libdir'
+      hardcode_minus_L_GCJ=yes
+      # see comment about different semantics on the GNU ld section
+      ld_shlibs_GCJ=no
+      ;;
+
+    bsdi4*)
+      export_dynamic_flag_spec_GCJ=-rdynamic
+      ;;
+
+    cygwin* | mingw* | pw32*)
+      # When not using gcc, we currently assume that we are using
+      # Microsoft Visual C++.
+      # hardcode_libdir_flag_spec is actually meaningless, as there is
+      # no search path for DLLs.
+      hardcode_libdir_flag_spec_GCJ=' '
+      allow_undefined_flag_GCJ=unsupported
+      # Tell ltmain to make .lib files, not .a files.
+      libext=lib
+      # Tell ltmain to make .dll files, not .so files.
+      shrext=".dll"
+      # FIXME: Setting linknames here is a bad hack.
+      archive_cmds_GCJ='$CC -o $lib $libobjs $compiler_flags `echo "$deplibs" | $SED -e '\''s/ -lc$//'\''` -link -dll~linknames='
+      # The linker will automatically build a .lib file if we build a DLL.
+      old_archive_From_new_cmds_GCJ='true'
+      # FIXME: Should let the user specify the lib program.
+      old_archive_cmds_GCJ='lib /OUT:$oldlib$oldobjs$old_deplibs'
+      fix_srcfile_path='`cygpath -w "$srcfile"`'
+      enable_shared_with_static_runtimes_GCJ=yes
+      ;;
+
+    darwin* | rhapsody*)
+    if $CC -v 2>&1 | grep 'Apple' >/dev/null ; then
+      archive_cmds_need_lc_GCJ=no
+      case "$host_os" in
+      rhapsody* | darwin1.[012])
+       allow_undefined_flag_GCJ='-undefined suppress'
+       ;;
+      *) # Darwin 1.3 on
+       test -z ${LD_TWOLEVEL_NAMESPACE} && allow_undefined_flag_GCJ='-flat_namespace -undefined suppress'
+       ;;
+      esac
+      # FIXME: Relying on posixy $() will cause problems for
+      #        cross-compilation, but unfortunately the echo tests do not
+      #        yet detect zsh echo's removal of \ escapes.  Also zsh mangles
+      #               `"' quotes if we put them in here... so don't!
+       lt_int_apple_cc_single_mod=no
+       output_verbose_link_cmd='echo'
+       if $CC -dumpspecs 2>&1 | grep 'single_module' >/dev/null ; then
+         lt_int_apple_cc_single_mod=yes
+       fi
+       if test "X$lt_int_apple_cc_single_mod" = Xyes ; then
+         archive_cmds_GCJ='$CC -dynamiclib -single_module $allow_undefined_flag -o $lib $libobjs $deplibs $compiler_flags -install_name $rpath/$soname $verstring'
+       else
+        archive_cmds_GCJ='$CC -r ${wl}-bind_at_load -keep_private_externs -nostdlib -o ${lib}-master.o $libobjs~$CC -dynamiclib $allow_undefined_flag -o $lib ${lib}-master.o $deplibs $compiler_flags -install_name $rpath/$soname $verstring'
+      fi
+      module_cmds_GCJ='$CC -bundle ${wl}-bind_at_load $allow_undefined_flag -o $lib $libobjs $deplibs$compiler_flags'
+      # Don't fix this by using the ld -exported_symbols_list flag, it doesn't exist in older darwin ld's
+        if test "X$lt_int_apple_cc_single_mod" = Xyes ; then
+          archive_expsym_cmds_GCJ='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -dynamiclib -single_module $allow_undefined_flag -o $lib $libobjs $deplibs $compiler_flags -install_name $rpath/$soname $verstring~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
+        else
+          archive_expsym_cmds_GCJ='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -r ${wl}-bind_at_load -keep_private_externs -nostdlib -o ${lib}-master.o $libobjs~$CC -dynamiclib $allow_undefined_flag -o $lib ${lib}-master.o $deplibs $compiler_flags -install_name $rpath/$soname $verstring~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
+        fi
+          module_expsym_cmds_GCJ='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -bundle $allow_undefined_flag  -o $lib $libobjs $deplibs$compiler_flags~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
+      hardcode_direct_GCJ=no
+      hardcode_automatic_GCJ=yes
+      hardcode_shlibpath_var_GCJ=unsupported
+      whole_archive_flag_spec_GCJ='-all_load $convenience'
+      link_all_deplibs_GCJ=yes
+    fi
+      ;;
+
+    dgux*)
+      archive_cmds_GCJ='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_libdir_flag_spec_GCJ='-L$libdir'
+      hardcode_shlibpath_var_GCJ=no
+      ;;
+
+    freebsd1*)
+      ld_shlibs_GCJ=no
+      ;;
+
+    # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
+    # support.  Future versions do this automatically, but an explicit c++rt0.o
+    # does not break anything, and helps significantly (at the cost of a little
+    # extra space).
+    freebsd2.2*)
+      archive_cmds_GCJ='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
+      hardcode_libdir_flag_spec_GCJ='-R$libdir'
+      hardcode_direct_GCJ=yes
+      hardcode_shlibpath_var_GCJ=no
+      ;;
+
+    # Unfortunately, older versions of FreeBSD 2 do not have this feature.
+    freebsd2*)
+      archive_cmds_GCJ='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_direct_GCJ=yes
+      hardcode_minus_L_GCJ=yes
+      hardcode_shlibpath_var_GCJ=no
+      ;;
+
+    # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
+    freebsd*)
+      archive_cmds_GCJ='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
+      hardcode_libdir_flag_spec_GCJ='-R$libdir'
+      hardcode_direct_GCJ=yes
+      hardcode_shlibpath_var_GCJ=no
+      ;;
+
+    hpux9*)
+      if test "$GCC" = yes; then
+       archive_cmds_GCJ='$rm $output_objdir/$soname~$CC -shared -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+      else
+       archive_cmds_GCJ='$rm $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+      fi
+      hardcode_libdir_flag_spec_GCJ='${wl}+b ${wl}$libdir'
+      hardcode_libdir_separator_GCJ=:
+      hardcode_direct_GCJ=yes
+
+      # hardcode_minus_L: Not really in the search PATH,
+      # but as the default location of the library.
+      hardcode_minus_L_GCJ=yes
+      export_dynamic_flag_spec_GCJ='${wl}-E'
+      ;;
+
+    hpux10* | hpux11*)
+      if test "$GCC" = yes -a "$with_gnu_ld" = no; then
+       case "$host_cpu" in
+       hppa*64*|ia64*)
+         archive_cmds_GCJ='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+         ;;
+       *)
+         archive_cmds_GCJ='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+         ;;
+       esac
+      else
+       case "$host_cpu" in
+       hppa*64*|ia64*)
+         archive_cmds_GCJ='$LD -b +h $soname -o $lib $libobjs $deplibs $linker_flags'
+         ;;
+       *)
+         archive_cmds_GCJ='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
+         ;;
+       esac
+      fi
+      if test "$with_gnu_ld" = no; then
+       case "$host_cpu" in
+       hppa*64*)
+         hardcode_libdir_flag_spec_GCJ='${wl}+b ${wl}$libdir'
+         hardcode_libdir_flag_spec_ld_GCJ='+b $libdir'
+         hardcode_libdir_separator_GCJ=:
+         hardcode_direct_GCJ=no
+         hardcode_shlibpath_var_GCJ=no
+         ;;
+       ia64*)
+         hardcode_libdir_flag_spec_GCJ='-L$libdir'
+         hardcode_direct_GCJ=no
+         hardcode_shlibpath_var_GCJ=no
+
+         # hardcode_minus_L: Not really in the search PATH,
+         # but as the default location of the library.
+         hardcode_minus_L_GCJ=yes
+         ;;
+       *)
+         hardcode_libdir_flag_spec_GCJ='${wl}+b ${wl}$libdir'
+         hardcode_libdir_separator_GCJ=:
+         hardcode_direct_GCJ=yes
+         export_dynamic_flag_spec_GCJ='${wl}-E'
+
+         # hardcode_minus_L: Not really in the search PATH,
+         # but as the default location of the library.
+         hardcode_minus_L_GCJ=yes
+         ;;
+       esac
+      fi
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      if test "$GCC" = yes; then
+       archive_cmds_GCJ='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+      else
+       archive_cmds_GCJ='$LD -shared $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${output_objdir}/so_locations -o $lib'
+       hardcode_libdir_flag_spec_ld_GCJ='-rpath $libdir'
+      fi
+      hardcode_libdir_flag_spec_GCJ='${wl}-rpath ${wl}$libdir'
+      hardcode_libdir_separator_GCJ=:
+      link_all_deplibs_GCJ=yes
+      ;;
+
+    netbsd*)
+      if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
+       archive_cmds_GCJ='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
+      else
+       archive_cmds_GCJ='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
+      fi
+      hardcode_libdir_flag_spec_GCJ='-R$libdir'
+      hardcode_direct_GCJ=yes
+      hardcode_shlibpath_var_GCJ=no
+      ;;
+
+    newsos6)
+      archive_cmds_GCJ='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_direct_GCJ=yes
+      hardcode_libdir_flag_spec_GCJ='${wl}-rpath ${wl}$libdir'
+      hardcode_libdir_separator_GCJ=:
+      hardcode_shlibpath_var_GCJ=no
+      ;;
+
+    openbsd*)
+      hardcode_direct_GCJ=yes
+      hardcode_shlibpath_var_GCJ=no
+      if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+       archive_cmds_GCJ='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+       hardcode_libdir_flag_spec_GCJ='${wl}-rpath,$libdir'
+       export_dynamic_flag_spec_GCJ='${wl}-E'
+      else
+       case $host_os in
+        openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*)
+          archive_cmds_GCJ='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+          hardcode_libdir_flag_spec_GCJ='-R$libdir'
+          ;;
+        *)
+          archive_cmds_GCJ='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+          hardcode_libdir_flag_spec_GCJ='${wl}-rpath,$libdir'
+          ;;
+       esac
+      fi
+      ;;
+
+    os2*)
+      hardcode_libdir_flag_spec_GCJ='-L$libdir'
+      hardcode_minus_L_GCJ=yes
+      allow_undefined_flag_GCJ=unsupported
+      archive_cmds_GCJ='$echo "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$echo "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~$echo DATA >> $output_objdir/$libname.def~$echo " SINGLE NONSHARED" >> $output_objdir/$libname.def~$echo EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def'
+      old_archive_From_new_cmds_GCJ='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
+      ;;
+
+    osf3*)
+      if test "$GCC" = yes; then
+       allow_undefined_flag_GCJ=' ${wl}-expect_unresolved ${wl}\*'
+       archive_cmds_GCJ='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+      else
+       allow_undefined_flag_GCJ=' -expect_unresolved \*'
+       archive_cmds_GCJ='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${output_objdir}/so_locations -o $lib'
+      fi
+      hardcode_libdir_flag_spec_GCJ='${wl}-rpath ${wl}$libdir'
+      hardcode_libdir_separator_GCJ=:
+      ;;
+
+    osf4* | osf5*)     # as osf3* with the addition of -msym flag
+      if test "$GCC" = yes; then
+       allow_undefined_flag_GCJ=' ${wl}-expect_unresolved ${wl}\*'
+       archive_cmds_GCJ='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+       hardcode_libdir_flag_spec_GCJ='${wl}-rpath ${wl}$libdir'
+      else
+       allow_undefined_flag_GCJ=' -expect_unresolved \*'
+       archive_cmds_GCJ='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -msym -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${output_objdir}/so_locations -o $lib'
+       archive_expsym_cmds_GCJ='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; echo "-hidden">> $lib.exp~
+       $LD -shared${allow_undefined_flag} -input $lib.exp $linker_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib~$rm $lib.exp'
+
+       # Both c and cxx compiler support -rpath directly
+       hardcode_libdir_flag_spec_GCJ='-rpath $libdir'
+      fi
+      hardcode_libdir_separator_GCJ=:
+      ;;
+
+    sco3.2v5*)
+      archive_cmds_GCJ='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_shlibpath_var_GCJ=no
+      export_dynamic_flag_spec_GCJ='${wl}-Bexport'
+      runpath_var=LD_RUN_PATH
+      hardcode_runpath_var=yes
+      ;;
+
+    solaris*)
+      no_undefined_flag_GCJ=' -z text'
+      if test "$GCC" = yes; then
+       archive_cmds_GCJ='$CC -shared ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+       archive_expsym_cmds_GCJ='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+         $CC -shared ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$rm $lib.exp'
+      else
+       archive_cmds_GCJ='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
+       archive_expsym_cmds_GCJ='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+       $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
+      fi
+      hardcode_libdir_flag_spec_GCJ='-R$libdir'
+      hardcode_shlibpath_var_GCJ=no
+      case $host_os in
+      solaris2.[0-5] | solaris2.[0-5].*) ;;
+      *) # Supported since Solaris 2.6 (maybe 2.5.1?)
+       whole_archive_flag_spec_GCJ='-z allextract$convenience -z defaultextract' ;;
+      esac
+      link_all_deplibs_GCJ=yes
+      ;;
+
+    sunos4*)
+      if test "x$host_vendor" = xsequent; then
+       # Use $CC to link under sequent, because it throws in some extra .o
+       # files that make .init and .fini sections work.
+       archive_cmds_GCJ='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+       archive_cmds_GCJ='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      hardcode_libdir_flag_spec_GCJ='-L$libdir'
+      hardcode_direct_GCJ=yes
+      hardcode_minus_L_GCJ=yes
+      hardcode_shlibpath_var_GCJ=no
+      ;;
+
+    sysv4)
+      case $host_vendor in
+       sni)
+         archive_cmds_GCJ='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+         hardcode_direct_GCJ=yes # is this really true???
+       ;;
+       siemens)
+         ## LD is ld it makes a PLAMLIB
+         ## CC just makes a GrossModule.
+         archive_cmds_GCJ='$LD -G -o $lib $libobjs $deplibs $linker_flags'
+         reload_cmds_GCJ='$CC -r -o $output$reload_objs'
+         hardcode_direct_GCJ=no
+        ;;
+       motorola)
+         archive_cmds_GCJ='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+         hardcode_direct_GCJ=no #Motorola manual says yes, but my tests say they lie
+       ;;
+      esac
+      runpath_var='LD_RUN_PATH'
+      hardcode_shlibpath_var_GCJ=no
+      ;;
+
+    sysv4.3*)
+      archive_cmds_GCJ='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_shlibpath_var_GCJ=no
+      export_dynamic_flag_spec_GCJ='-Bexport'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+       archive_cmds_GCJ='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+       hardcode_shlibpath_var_GCJ=no
+       runpath_var=LD_RUN_PATH
+       hardcode_runpath_var=yes
+       ld_shlibs_GCJ=yes
+      fi
+      ;;
+
+    sysv4.2uw2*)
+      archive_cmds_GCJ='$LD -G -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_direct_GCJ=yes
+      hardcode_minus_L_GCJ=no
+      hardcode_shlibpath_var_GCJ=no
+      hardcode_runpath_var=yes
+      runpath_var=LD_RUN_PATH
+      ;;
+
+   sysv5OpenUNIX8* | sysv5UnixWare7* |  sysv5uw[78]* | unixware7*)
+      no_undefined_flag_GCJ='${wl}-z ${wl}text'
+      if test "$GCC" = yes; then
+       archive_cmds_GCJ='$CC -shared ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+       archive_cmds_GCJ='$CC -G ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      runpath_var='LD_RUN_PATH'
+      hardcode_shlibpath_var_GCJ=no
+      ;;
+
+    sysv5*)
+      no_undefined_flag_GCJ=' -z text'
+      # $CC -shared without GNU ld will not create a library from C++
+      # object files and a static libstdc++, better avoid it by now
+      archive_cmds_GCJ='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      archive_expsym_cmds_GCJ='$echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+               $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
+      hardcode_libdir_flag_spec_GCJ=
+      hardcode_shlibpath_var_GCJ=no
+      runpath_var='LD_RUN_PATH'
+      ;;
+
+    uts4*)
+      archive_cmds_GCJ='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_libdir_flag_spec_GCJ='-L$libdir'
+      hardcode_shlibpath_var_GCJ=no
+      ;;
+
+    *)
+      ld_shlibs_GCJ=no
+      ;;
+    esac
+  fi
+
+echo "$as_me:$LINENO: result: $ld_shlibs_GCJ" >&5
+echo "${ECHO_T}$ld_shlibs_GCJ" >&6
+test "$ld_shlibs_GCJ" = no && can_build_shared=no
+
+variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
+if test "$GCC" = yes; then
+  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+fi
+
+#
+# Do we need to explicitly link libc?
+#
+case "x$archive_cmds_need_lc_GCJ" in
+x|xyes)
+  # Assume -lc should be added
+  archive_cmds_need_lc_GCJ=yes
+
+  if test "$enable_shared" = yes && test "$GCC" = yes; then
+    case $archive_cmds_GCJ in
+    *'~'*)
+      # FIXME: we may have to deal with multi-command sequences.
+      ;;
+    '$CC '*)
+      # Test whether the compiler implicitly links with -lc since on some
+      # systems, -lgcc has to come before -lc. If gcc already passes -lc
+      # to ld, don't add -lc before -lgcc.
+      echo "$as_me:$LINENO: checking whether -lc should be explicitly linked in" >&5
+echo $ECHO_N "checking whether -lc should be explicitly linked in... $ECHO_C" >&6
+      $rm conftest*
+      printf "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+      if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } 2>conftest.err; then
+        soname=conftest
+        lib=conftest
+        libobjs=conftest.$ac_objext
+        deplibs=
+        wl=$lt_prog_compiler_wl_GCJ
+        compiler_flags=-v
+        linker_flags=-v
+        verstring=
+        output_objdir=.
+        libname=conftest
+        lt_save_allow_undefined_flag=$allow_undefined_flag_GCJ
+        allow_undefined_flag_GCJ=
+        if { (eval echo "$as_me:$LINENO: \"$archive_cmds_GCJ 2\>\&1 \| grep \" -lc \" \>/dev/null 2\>\&1\"") >&5
+  (eval $archive_cmds_GCJ 2\>\&1 \| grep \" -lc \" \>/dev/null 2\>\&1) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+        then
+         archive_cmds_need_lc_GCJ=no
+        else
+         archive_cmds_need_lc_GCJ=yes
+        fi
+        allow_undefined_flag_GCJ=$lt_save_allow_undefined_flag
+      else
+        cat conftest.err 1>&5
+      fi
+      $rm conftest*
+      echo "$as_me:$LINENO: result: $archive_cmds_need_lc_GCJ" >&5
+echo "${ECHO_T}$archive_cmds_need_lc_GCJ" >&6
+      ;;
+    esac
+  fi
+  ;;
+esac
+
+echo "$as_me:$LINENO: checking how to hardcode library paths into programs" >&5
+echo $ECHO_N "checking how to hardcode library paths into programs... $ECHO_C" >&6
+hardcode_action_GCJ=
+if test -n "$hardcode_libdir_flag_spec_GCJ" || \
+   test -n "$runpath_var GCJ" || \
+   test "X$hardcode_automatic_GCJ"="Xyes" ; then
+
+  # We can hardcode non-existant directories.
+  if test "$hardcode_direct_GCJ" != no &&
+     # If the only mechanism to avoid hardcoding is shlibpath_var, we
+     # have to relink, otherwise we might link with an installed library
+     # when we should be linking with a yet-to-be-installed one
+     ## test "$_LT_AC_TAGVAR(hardcode_shlibpath_var, GCJ)" != no &&
+     test "$hardcode_minus_L_GCJ" != no; then
+    # Linking always hardcodes the temporary library directory.
+    hardcode_action_GCJ=relink
+  else
+    # We can link without hardcoding, and we can hardcode nonexisting dirs.
+    hardcode_action_GCJ=immediate
+  fi
+else
+  # We cannot hardcode anything, or else we can only hardcode existing
+  # directories.
+  hardcode_action_GCJ=unsupported
+fi
+echo "$as_me:$LINENO: result: $hardcode_action_GCJ" >&5
+echo "${ECHO_T}$hardcode_action_GCJ" >&6
+
+if test "$hardcode_action_GCJ" = relink; then
+  # Fast installation is not supported
+  enable_fast_install=no
+elif test "$shlibpath_overrides_runpath" = yes ||
+     test "$enable_shared" = no; then
+  # Fast installation is not necessary
+  enable_fast_install=needless
+fi
+
+striplib=
+old_striplib=
+echo "$as_me:$LINENO: checking whether stripping libraries is possible" >&5
+echo $ECHO_N "checking whether stripping libraries is possible... $ECHO_C" >&6
+if test -n "$STRIP" && $STRIP -V 2>&1 | grep "GNU strip" >/dev/null; then
+  test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
+  test -z "$striplib" && striplib="$STRIP --strip-unneeded"
+  echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+# FIXME - insert some real tests, host_os isn't really good enough
+  case $host_os in
+   darwin*)
+       if test -n "$STRIP" ; then
+         striplib="$STRIP -x"
+         echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+       else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+       ;;
+   *)
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+    ;;
+  esac
+fi
+
+echo "$as_me:$LINENO: checking dynamic linker characteristics" >&5
+echo $ECHO_N "checking dynamic linker characteristics... $ECHO_C" >&6
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+shrext=".so"
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+if test "$GCC" = yes; then
+  sys_lib_search_path_spec=`$CC -print-search-dirs | grep "^libraries:" | $SED -e "s/^libraries://" -e "s,=/,/,g"`
+  if echo "$sys_lib_search_path_spec" | grep ';' >/dev/null ; then
+    # if the path contains ";" then we assume it to be the separator
+    # otherwise default to the standard path separator (i.e. ":") - it is
+    # assumed that no part of a normal pathname contains ";" but that should
+    # okay in the real world where ";" in dirpaths is itself problematic.
+    sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+  else
+    sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED  -e "s/$PATH_SEPARATOR/ /g"`
+  fi
+else
+  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+fi
+need_lib_prefix=unknown
+hardcode_into_libs=no
+
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+need_version=unknown
+
+case $host_os in
+aix3*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
+  shlibpath_var=LIBPATH
+
+  # AIX 3 has no versioning support, so we append a major version to the name.
+  soname_spec='${libname}${release}${shared_ext}$major'
+  ;;
+
+aix4* | aix5*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  hardcode_into_libs=yes
+  if test "$host_cpu" = ia64; then
+    # AIX 5 supports IA64
+    library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}'
+    shlibpath_var=LD_LIBRARY_PATH
+  else
+    # With GCC up to 2.95.x, collect2 would create an import file
+    # for dependence libraries.  The import file would start with
+    # the line `#! .'.  This would cause the generated library to
+    # depend on `.', always an invalid library.  This was fixed in
+    # development snapshots of GCC prior to 3.0.
+    case $host_os in
+      aix4 | aix4.[01] | aix4.[01].*)
+      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
+          echo ' yes '
+          echo '#endif'; } | ${CC} -E - | grep yes > /dev/null; then
+       :
+      else
+       can_build_shared=no
+      fi
+      ;;
+    esac
+    # AIX (on Power*) has no versioning support, so currently we can not hardcode correct
+    # soname into executable. Probably we can add versioning support to
+    # collect2, so additional links can be useful in future.
+    if test "$aix_use_runtimelinking" = yes; then
+      # If using run time linking (on AIX 4.2 or later) use lib<name>.so
+      # instead of lib<name>.a to let people know that these are not
+      # typical AIX shared libraries.
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    else
+      # We preserve .a as extension for shared libraries through AIX4.2
+      # and later when we are not doing run time linking.
+      library_names_spec='${libname}${release}.a $libname.a'
+      soname_spec='${libname}${release}${shared_ext}$major'
+    fi
+    shlibpath_var=LIBPATH
+  fi
+  ;;
+
+amigaos*)
+  library_names_spec='$libname.ixlibrary $libname.a'
+  # Create ${libname}_ixlibrary.a entries in /sys/libs.
+  finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`$echo "X$lib" | $Xsed -e '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; test $rm /sys/libs/${libname}_ixlibrary.a; $show "(cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a)"; (cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a) || exit 1; done'
+  ;;
+
+beos*)
+  library_names_spec='${libname}${shared_ext}'
+  dynamic_linker="$host_os ld.so"
+  shlibpath_var=LIBRARY_PATH
+  ;;
+
+bsdi4*)
+  version_type=linux
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+  # the default ld.so.conf also contains /usr/contrib/lib and
+  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+  # libtool to hard-code these into programs
+  ;;
+
+cygwin* | mingw* | pw32*)
+  version_type=windows
+  shrext=".dll"
+  need_version=no
+  need_lib_prefix=no
+
+  case $GCC,$host_os in
+  yes,cygwin* | yes,mingw* | yes,pw32*)
+    library_names_spec='$libname.dll.a'
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \${file}`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i;echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $rm \$dlpath'
+    shlibpath_overrides_runpath=yes
+
+    case $host_os in
+    cygwin*)
+      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
+      soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+      sys_lib_search_path_spec="/lib /lib/w32api /usr/lib /usr/local/lib"
+      ;;
+    mingw*)
+      # MinGW DLLs use traditional 'lib' prefix
+      soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+      sys_lib_search_path_spec=`$CC -print-search-dirs | grep "^libraries:" | $SED -e "s/^libraries://" -e "s,=/,/,g"`
+      if echo "$sys_lib_search_path_spec" | grep ';[c-zC-Z]:/' >/dev/null; then
+        # It is most probably a Windows format PATH printed by
+        # mingw gcc, but we are running on Cygwin. Gcc prints its search
+        # path with ; separators, and with drive letters. We can handle the
+        # drive letters (cygwin fileutils understands them), so leave them,
+        # especially as we might pass files found there to a mingw objdump,
+        # which wouldn't understand a cygwinified path. Ahh.
+        sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+      else
+        sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED  -e "s/$PATH_SEPARATOR/ /g"`
+      fi
+      ;;
+    pw32*)
+      # pw32 DLLs use 'pw' prefix rather than 'lib'
+      library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/./-/g'`${versuffix}${shared_ext}'
+      ;;
+    esac
+    ;;
+
+  *)
+    library_names_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext} $libname.lib'
+    ;;
+  esac
+  dynamic_linker='Win32 ld.exe'
+  # FIXME: first we should search . and the directory the executable is in
+  shlibpath_var=PATH
+  ;;
+
+darwin* | rhapsody*)
+  dynamic_linker="$host_os dyld"
+  version_type=darwin
+  need_lib_prefix=no
+  need_version=no
+  # FIXME: Relying on posixy $() will cause problems for
+  #        cross-compilation, but unfortunately the echo tests do not
+  #        yet detect zsh echo's removal of \ escapes.
+  library_names_spec='${libname}${release}${versuffix}$shared_ext ${libname}${release}${major}$shared_ext ${libname}$shared_ext'
+  soname_spec='${libname}${release}${major}$shared_ext'
+  shlibpath_overrides_runpath=yes
+  shlibpath_var=DYLD_LIBRARY_PATH
+  shrext='$(test .$module = .yes && echo .so || echo .dylib)'
+  # Apple's gcc prints 'gcc -print-search-dirs' doesn't operate the same.
+  if $CC -v 2>&1 | grep 'Apple' >/dev/null ; then
+  sys_lib_search_path_spec=`$CC -print-search-dirs | tr "\n" "$PATH_SEPARATOR" | sed -e 's/libraries:/@libraries:/' | tr "@" "\n" | grep "^libraries:" | sed -e "s/^libraries://" -e "s,=/,/,g" -e "s,$PATH_SEPARATOR, ,g" -e "s,.*,& /lib /usr/lib /usr/local/lib,g"`
+  fi
+  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
+  ;;
+
+dgux*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+freebsd1*)
+  dynamic_linker=no
+  ;;
+
+freebsd*)
+  objformat=`test -x /usr/bin/objformat && /usr/bin/objformat || echo aout`
+  version_type=freebsd-$objformat
+  case $version_type in
+    freebsd-elf*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
+      need_version=no
+      need_lib_prefix=no
+      ;;
+    freebsd-*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix'
+      need_version=yes
+      ;;
+  esac
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_os in
+  freebsd2*)
+    shlibpath_overrides_runpath=yes
+    ;;
+  freebsd3.01* | freebsdelf3.01*)
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  *) # from 3.2 on
+    shlibpath_overrides_runpath=no
+    hardcode_into_libs=yes
+    ;;
+  esac
+  ;;
+
+gnu*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  hardcode_into_libs=yes
+  ;;
+
+hpux9* | hpux10* | hpux11*)
+  # Give a soname corresponding to the major version so that dld.sl refuses to
+  # link against other versions.
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  case "$host_cpu" in
+  ia64*)
+    shrext='.so'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.so"
+    shlibpath_var=LD_LIBRARY_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    if test "X$HPUX_IA64_MODE" = X32; then
+      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+    else
+      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+    fi
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+   hppa*64*)
+     shrext='.sl'
+     hardcode_into_libs=yes
+     dynamic_linker="$host_os dld.sl"
+     shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
+     shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+     library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+     soname_spec='${libname}${release}${shared_ext}$major'
+     sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
+     sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+     ;;
+   *)
+    shrext='.sl'
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=SHLIB_PATH
+    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    ;;
+  esac
+  # HP-UX runs *really* slowly unless shared libraries are mode 555.
+  postinstall_cmds='chmod 555 $lib'
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $host_os in
+    nonstopux*) version_type=nonstopux ;;
+    *)
+       if test "$lt_cv_prog_gnu_ld" = yes; then
+               version_type=linux
+       else
+               version_type=irix
+       fi ;;
+  esac
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}'
+  case $host_os in
+  irix5* | nonstopux*)
+    libsuff= shlibsuff=
+    ;;
+  *)
+    case $LD in # libtool.m4 will add one of these switches to LD
+    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
+      libsuff= shlibsuff= libmagic=32-bit;;
+    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
+      libsuff=32 shlibsuff=N32 libmagic=N32;;
+    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
+      libsuff=64 shlibsuff=64 libmagic=64-bit;;
+    *) libsuff= shlibsuff= libmagic=never-match;;
+    esac
+    ;;
+  esac
+  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
+  sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
+  hardcode_into_libs=yes
+  ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux*oldld* | linux*aout* | linux*coff*)
+  dynamic_linker=no
+  ;;
+
+# This must be Linux ELF.
+linux*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  # We used to test for /lib/ld.so.1 and disable shared libraries on
+  # powerpc, because MkLinux only supported shared libraries with the
+  # GNU dynamic linker.  Since this was broken with cross compilers,
+  # most powerpc-linux boxes support dynamic linking these days and
+  # people can always --disable-shared, the test was removed, and we
+  # assume the GNU/Linux dynamic linker is in use.
+  dynamic_linker='GNU/Linux ld.so'
+
+  # Find out which ABI we are using (multilib Linux x86_64 hack).
+  libsuff=
+  case "$host_cpu" in
+  x86_64*|s390x*)
+    echo '#line 16576 "configure"' > conftest.$ac_ext
+    if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; then
+      case `/usr/bin/file conftest.$ac_objext` in
+      *64-bit*)
+        libsuff=64
+        ;;
+      esac
+    fi
+    rm -rf conftest*
+    ;;
+  *)
+    ;;
+  esac
+  sys_lib_dlsearch_path_spec="/lib${libsuff} /usr/lib${libsuff}"
+  sys_lib_search_path_spec="/lib${libsuff} /usr/lib${libsuff} /usr/local/lib${libsuff}"
+  ;;
+
+netbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+    dynamic_linker='NetBSD (a.out) ld.so'
+  else
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} ${libname}${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    dynamic_linker='NetBSD ld.elf_so'
+  fi
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  ;;
+
+newsos6)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+nto-qnx)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+openbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+    case $host_os in
+      openbsd2.[89] | openbsd2.[89].*)
+       shlibpath_overrides_runpath=no
+       ;;
+      *)
+       shlibpath_overrides_runpath=yes
+       ;;
+      esac
+  else
+    shlibpath_overrides_runpath=yes
+  fi
+  ;;
+
+os2*)
+  libname_spec='$name'
+  shrext=".dll"
+  need_lib_prefix=no
+  library_names_spec='$libname${shared_ext} $libname.a'
+  dynamic_linker='OS/2 ld.exe'
+  shlibpath_var=LIBPATH
+  ;;
+
+osf3* | osf4* | osf5*)
+  version_type=osf
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+  sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
+  ;;
+
+sco3.2v5*)
+  version_type=osf
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+solaris*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  # ldd complains unless libraries are executable
+  postinstall_cmds='chmod +x $lib'
+  ;;
+
+sunos4*)
+  version_type=sunos
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  if test "$with_gnu_ld" = yes; then
+    need_lib_prefix=no
+  fi
+  need_version=yes
+  ;;
+
+sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_vendor in
+    sni)
+      shlibpath_overrides_runpath=no
+      need_lib_prefix=no
+      export_dynamic_flag_spec='${wl}-Blargedynsym'
+      runpath_var=LD_RUN_PATH
+      ;;
+    siemens)
+      need_lib_prefix=no
+      ;;
+    motorola)
+      need_lib_prefix=no
+      need_version=no
+      shlibpath_overrides_runpath=no
+      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+      ;;
+  esac
+  ;;
+
+sysv4*MP*)
+  if test -d /usr/nec ;then
+    version_type=linux
+    library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
+    soname_spec='$libname${shared_ext}.$major'
+    shlibpath_var=LD_LIBRARY_PATH
+  fi
+  ;;
+
+uts4*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+*)
+  dynamic_linker=no
+  ;;
+esac
+echo "$as_me:$LINENO: result: $dynamic_linker" >&5
+echo "${ECHO_T}$dynamic_linker" >&6
+test "$dynamic_linker" = no && can_build_shared=no
+
+if test "x$enable_dlopen" != xyes; then
+  enable_dlopen=unknown
+  enable_dlopen_self=unknown
+  enable_dlopen_self_static=unknown
+else
+  lt_cv_dlopen=no
+  lt_cv_dlopen_libs=
+
+  case $host_os in
+  beos*)
+    lt_cv_dlopen="load_add_on"
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+    ;;
+
+  mingw* | pw32*)
+    lt_cv_dlopen="LoadLibrary"
+    lt_cv_dlopen_libs=
+   ;;
+
+  cygwin*)
+    lt_cv_dlopen="dlopen"
+    lt_cv_dlopen_libs=
+   ;;
+
+  darwin*)
+  # if libdl is installed we need to link against it
+    echo "$as_me:$LINENO: checking for dlopen in -ldl" >&5
+echo $ECHO_N "checking for dlopen in -ldl... $ECHO_C" >&6
+if test "${ac_cv_lib_dl_dlopen+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char dlopen ();
+int
+main ()
+{
+dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_dl_dlopen=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_dl_dlopen=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_dl_dlopen" >&5
+echo "${ECHO_T}$ac_cv_lib_dl_dlopen" >&6
+if test $ac_cv_lib_dl_dlopen = yes; then
+  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"
+else
+
+    lt_cv_dlopen="dyld"
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+
+fi
+
+   ;;
+
+  *)
+    echo "$as_me:$LINENO: checking for shl_load" >&5
+echo $ECHO_N "checking for shl_load... $ECHO_C" >&6
+if test "${ac_cv_func_shl_load+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char shl_load (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char shl_load ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_shl_load) || defined (__stub___shl_load)
+choke me
+#else
+char (*f) () = shl_load;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != shl_load;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_func_shl_load=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_func_shl_load=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_shl_load" >&5
+echo "${ECHO_T}$ac_cv_func_shl_load" >&6
+if test $ac_cv_func_shl_load = yes; then
+  lt_cv_dlopen="shl_load"
+else
+  echo "$as_me:$LINENO: checking for shl_load in -ldld" >&5
+echo $ECHO_N "checking for shl_load in -ldld... $ECHO_C" >&6
+if test "${ac_cv_lib_dld_shl_load+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldld  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char shl_load ();
+int
+main ()
+{
+shl_load ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_dld_shl_load=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_dld_shl_load=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_dld_shl_load" >&5
+echo "${ECHO_T}$ac_cv_lib_dld_shl_load" >&6
+if test $ac_cv_lib_dld_shl_load = yes; then
+  lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-dld"
+else
+  echo "$as_me:$LINENO: checking for dlopen" >&5
+echo $ECHO_N "checking for dlopen... $ECHO_C" >&6
+if test "${ac_cv_func_dlopen+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char dlopen (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char dlopen ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_dlopen) || defined (__stub___dlopen)
+choke me
+#else
+char (*f) () = dlopen;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != dlopen;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_func_dlopen=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_func_dlopen=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_dlopen" >&5
+echo "${ECHO_T}$ac_cv_func_dlopen" >&6
+if test $ac_cv_func_dlopen = yes; then
+  lt_cv_dlopen="dlopen"
+else
+  echo "$as_me:$LINENO: checking for dlopen in -ldl" >&5
+echo $ECHO_N "checking for dlopen in -ldl... $ECHO_C" >&6
+if test "${ac_cv_lib_dl_dlopen+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char dlopen ();
+int
+main ()
+{
+dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_dl_dlopen=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_dl_dlopen=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_dl_dlopen" >&5
+echo "${ECHO_T}$ac_cv_lib_dl_dlopen" >&6
+if test $ac_cv_lib_dl_dlopen = yes; then
+  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"
+else
+  echo "$as_me:$LINENO: checking for dlopen in -lsvld" >&5
+echo $ECHO_N "checking for dlopen in -lsvld... $ECHO_C" >&6
+if test "${ac_cv_lib_svld_dlopen+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lsvld  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char dlopen ();
+int
+main ()
+{
+dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_svld_dlopen=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_svld_dlopen=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_svld_dlopen" >&5
+echo "${ECHO_T}$ac_cv_lib_svld_dlopen" >&6
+if test $ac_cv_lib_svld_dlopen = yes; then
+  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld"
+else
+  echo "$as_me:$LINENO: checking for dld_link in -ldld" >&5
+echo $ECHO_N "checking for dld_link in -ldld... $ECHO_C" >&6
+if test "${ac_cv_lib_dld_dld_link+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldld  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char dld_link ();
+int
+main ()
+{
+dld_link ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_dld_dld_link=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_dld_dld_link=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_dld_dld_link" >&5
+echo "${ECHO_T}$ac_cv_lib_dld_dld_link" >&6
+if test $ac_cv_lib_dld_dld_link = yes; then
+  lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-dld"
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+    ;;
+  esac
+
+  if test "x$lt_cv_dlopen" != xno; then
+    enable_dlopen=yes
+  else
+    enable_dlopen=no
+  fi
+
+  case $lt_cv_dlopen in
+  dlopen)
+    save_CPPFLAGS="$CPPFLAGS"
+    test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
+
+    save_LDFLAGS="$LDFLAGS"
+    eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
+
+    save_LIBS="$LIBS"
+    LIBS="$lt_cv_dlopen_libs $LIBS"
+
+    echo "$as_me:$LINENO: checking whether a program can dlopen itself" >&5
+echo $ECHO_N "checking whether a program can dlopen itself... $ECHO_C" >&6
+if test "${lt_cv_dlopen_self+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+         if test "$cross_compiling" = yes; then :
+  lt_cv_dlopen_self=cross
+else
+  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+  lt_status=$lt_dlunknown
+  cat > conftest.$ac_ext <<EOF
+#line 17272 "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+#  define LT_DLGLOBAL          RTLD_GLOBAL
+#else
+#  ifdef DL_GLOBAL
+#    define LT_DLGLOBAL                DL_GLOBAL
+#  else
+#    define LT_DLGLOBAL                0
+#  endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+#  ifdef RTLD_LAZY
+#    define LT_DLLAZY_OR_NOW           RTLD_LAZY
+#  else
+#    ifdef DL_LAZY
+#      define LT_DLLAZY_OR_NOW         DL_LAZY
+#    else
+#      ifdef RTLD_NOW
+#        define LT_DLLAZY_OR_NOW       RTLD_NOW
+#      else
+#        ifdef DL_NOW
+#          define LT_DLLAZY_OR_NOW     DL_NOW
+#        else
+#          define LT_DLLAZY_OR_NOW     0
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+#ifdef __cplusplus
+extern "C" void exit (int);
+#endif
+
+void fnord() { int i=42;}
+int main ()
+{
+  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+  int status = $lt_dlunknown;
+
+  if (self)
+    {
+      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
+      else if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;
+      /* dlclose (self); */
+    }
+
+    exit (status);
+}
+EOF
+  if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && test -s conftest${ac_exeext} 2>/dev/null; then
+    (./conftest; exit; ) 2>/dev/null
+    lt_status=$?
+    case x$lt_status in
+      x$lt_dlno_uscore) lt_cv_dlopen_self=yes ;;
+      x$lt_dlneed_uscore) lt_cv_dlopen_self=yes ;;
+      x$lt_unknown|x*) lt_cv_dlopen_self=no ;;
+    esac
+  else :
+    # compilation failed
+    lt_cv_dlopen_self=no
+  fi
+fi
+rm -fr conftest*
+
+
+fi
+echo "$as_me:$LINENO: result: $lt_cv_dlopen_self" >&5
+echo "${ECHO_T}$lt_cv_dlopen_self" >&6
+
+    if test "x$lt_cv_dlopen_self" = xyes; then
+      LDFLAGS="$LDFLAGS $link_static_flag"
+      echo "$as_me:$LINENO: checking whether a statically linked program can dlopen itself" >&5
+echo $ECHO_N "checking whether a statically linked program can dlopen itself... $ECHO_C" >&6
+if test "${lt_cv_dlopen_self_static+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+         if test "$cross_compiling" = yes; then :
+  lt_cv_dlopen_self_static=cross
+else
+  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+  lt_status=$lt_dlunknown
+  cat > conftest.$ac_ext <<EOF
+#line 17370 "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+#  define LT_DLGLOBAL          RTLD_GLOBAL
+#else
+#  ifdef DL_GLOBAL
+#    define LT_DLGLOBAL                DL_GLOBAL
+#  else
+#    define LT_DLGLOBAL                0
+#  endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+#  ifdef RTLD_LAZY
+#    define LT_DLLAZY_OR_NOW           RTLD_LAZY
+#  else
+#    ifdef DL_LAZY
+#      define LT_DLLAZY_OR_NOW         DL_LAZY
+#    else
+#      ifdef RTLD_NOW
+#        define LT_DLLAZY_OR_NOW       RTLD_NOW
+#      else
+#        ifdef DL_NOW
+#          define LT_DLLAZY_OR_NOW     DL_NOW
+#        else
+#          define LT_DLLAZY_OR_NOW     0
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+#ifdef __cplusplus
+extern "C" void exit (int);
+#endif
+
+void fnord() { int i=42;}
+int main ()
+{
+  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+  int status = $lt_dlunknown;
+
+  if (self)
+    {
+      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
+      else if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;
+      /* dlclose (self); */
+    }
+
+    exit (status);
+}
+EOF
+  if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && test -s conftest${ac_exeext} 2>/dev/null; then
+    (./conftest; exit; ) 2>/dev/null
+    lt_status=$?
+    case x$lt_status in
+      x$lt_dlno_uscore) lt_cv_dlopen_self_static=yes ;;
+      x$lt_dlneed_uscore) lt_cv_dlopen_self_static=yes ;;
+      x$lt_unknown|x*) lt_cv_dlopen_self_static=no ;;
+    esac
+  else :
+    # compilation failed
+    lt_cv_dlopen_self_static=no
+  fi
+fi
+rm -fr conftest*
+
+
+fi
+echo "$as_me:$LINENO: result: $lt_cv_dlopen_self_static" >&5
+echo "${ECHO_T}$lt_cv_dlopen_self_static" >&6
+    fi
+
+    CPPFLAGS="$save_CPPFLAGS"
+    LDFLAGS="$save_LDFLAGS"
+    LIBS="$save_LIBS"
+    ;;
+  esac
+
+  case $lt_cv_dlopen_self in
+  yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
+  *) enable_dlopen_self=unknown ;;
+  esac
+
+  case $lt_cv_dlopen_self_static in
+  yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
+  *) enable_dlopen_self_static=unknown ;;
+  esac
+fi
+
+
+# The else clause should only fire when bootstrapping the
+# libtool distribution, otherwise you forgot to ship ltmain.sh
+# with your package, and you will get complaints that there are
+# no rules to generate ltmain.sh.
+if test -f "$ltmain"; then
+  # See if we are running on zsh, and set the options which allow our commands through
+  # without removal of \ escapes.
+  if test -n "${ZSH_VERSION+set}" ; then
+    setopt NO_GLOB_SUBST
+  fi
+  # Now quote all the things that may contain metacharacters while being
+  # careful not to overquote the AC_SUBSTed values.  We take copies of the
+  # variables and quote the copies for generation of the libtool script.
+  for var in echo old_CC old_CFLAGS AR AR_FLAGS EGREP RANLIB LN_S LTCC NM SED SHELL \
+    libname_spec library_names_spec soname_spec extract_expsyms_cmds \
+    old_striplib striplib file_magic_cmd finish_cmds finish_eval \
+    deplibs_check_method reload_flag reload_cmds need_locks \
+    lt_cv_sys_global_symbol_pipe lt_cv_sys_global_symbol_to_cdecl \
+    lt_cv_sys_global_symbol_to_c_name_address \
+    sys_lib_search_path_spec sys_lib_dlsearch_path_spec \
+    old_postinstall_cmds old_postuninstall_cmds \
+    compiler_GCJ \
+    CC_GCJ \
+    LD_GCJ \
+    lt_prog_compiler_wl_GCJ \
+    lt_prog_compiler_pic_GCJ \
+    lt_prog_compiler_static_GCJ \
+    lt_prog_compiler_no_builtin_flag_GCJ \
+    export_dynamic_flag_spec_GCJ \
+    thread_safe_flag_spec_GCJ \
+    whole_archive_flag_spec_GCJ \
+    enable_shared_with_static_runtimes_GCJ \
+    old_archive_cmds_GCJ \
+    old_archive_from_new_cmds_GCJ \
+    predep_objects_GCJ \
+    postdep_objects_GCJ \
+    predeps_GCJ \
+    postdeps_GCJ \
+    compiler_lib_search_path_GCJ \
+    archive_cmds_GCJ \
+    archive_expsym_cmds_GCJ \
+    postinstall_cmds_GCJ \
+    postuninstall_cmds_GCJ \
+    old_archive_from_expsyms_cmds_GCJ \
+    allow_undefined_flag_GCJ \
+    no_undefined_flag_GCJ \
+    export_symbols_cmds_GCJ \
+    hardcode_libdir_flag_spec_GCJ \
+    hardcode_libdir_flag_spec_ld_GCJ \
+    hardcode_libdir_separator_GCJ \
+    hardcode_automatic_GCJ \
+    module_cmds_GCJ \
+    module_expsym_cmds_GCJ \
+    lt_cv_prog_compiler_c_o_GCJ \
+    exclude_expsyms_GCJ \
+    include_expsyms_GCJ; do
+
+    case $var in
+    old_archive_cmds_GCJ | \
+    old_archive_from_new_cmds_GCJ | \
+    archive_cmds_GCJ | \
+    archive_expsym_cmds_GCJ | \
+    module_cmds_GCJ | \
+    module_expsym_cmds_GCJ | \
+    old_archive_from_expsyms_cmds_GCJ | \
+    export_symbols_cmds_GCJ | \
+    extract_expsyms_cmds | reload_cmds | finish_cmds | \
+    postinstall_cmds | postuninstall_cmds | \
+    old_postinstall_cmds | old_postuninstall_cmds | \
+    sys_lib_search_path_spec | sys_lib_dlsearch_path_spec)
+      # Double-quote double-evaled strings.
+      eval "lt_$var=\\\"\`\$echo \"X\$$var\" | \$Xsed -e \"\$double_quote_subst\" -e \"\$sed_quote_subst\" -e \"\$delay_variable_subst\"\`\\\""
+      ;;
+    *)
+      eval "lt_$var=\\\"\`\$echo \"X\$$var\" | \$Xsed -e \"\$sed_quote_subst\"\`\\\""
+      ;;
+    esac
+  done
+
+  case $lt_echo in
+  *'\$0 --fallback-echo"')
+    lt_echo=`$echo "X$lt_echo" | $Xsed -e 's/\\\\\\\$0 --fallback-echo"$/$0 --fallback-echo"/'`
+    ;;
+  esac
+
+cfgfile="$ofile"
+
+  cat <<__EOF__ >> "$cfgfile"
+# ### BEGIN LIBTOOL TAG CONFIG: $tagname
+
+# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
+
+# Shell to use when invoking shell scripts.
+SHELL=$lt_SHELL
+
+# Whether or not to build shared libraries.
+build_libtool_libs=$enable_shared
+
+# Whether or not to build static libraries.
+build_old_libs=$enable_static
+
+# Whether or not to add -lc for building shared libraries.
+build_libtool_need_lc=$archive_cmds_need_lc_GCJ
+
+# Whether or not to disallow shared libs when runtime libs are static
+allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes_GCJ
+
+# Whether or not to optimize for fast installation.
+fast_install=$enable_fast_install
+
+# The host system.
+host_alias=$host_alias
+host=$host
+
+# An echo program that does not interpret backslashes.
+echo=$lt_echo
+
+# The archiver.
+AR=$lt_AR
+AR_FLAGS=$lt_AR_FLAGS
+
+# A C compiler.
+LTCC=$lt_LTCC
+
+# A language-specific compiler.
+CC=$lt_compiler_GCJ
+
+# Is the compiler the GNU C compiler?
+with_gcc=$GCC_GCJ
+
+# An ERE matcher.
+EGREP=$lt_EGREP
+
+# The linker used to build libraries.
+LD=$lt_LD_GCJ
+
+# Whether we need hard or soft links.
+LN_S=$lt_LN_S
+
+# A BSD-compatible nm program.
+NM=$lt_NM
+
+# A symbol stripping program
+STRIP=$STRIP
+
+# Used to examine libraries when file_magic_cmd begins "file"
+MAGIC_CMD=$MAGIC_CMD
+
+# Used on cygwin: DLL creation program.
+DLLTOOL="$DLLTOOL"
+
+# Used on cygwin: object dumper.
+OBJDUMP="$OBJDUMP"
+
+# Used on cygwin: assembler.
+AS="$AS"
+
+# The name of the directory that contains temporary libtool files.
+objdir=$objdir
+
+# How to create reloadable object files.
+reload_flag=$lt_reload_flag
+reload_cmds=$lt_reload_cmds
+
+# How to pass a linker flag through the compiler.
+wl=$lt_lt_prog_compiler_wl_GCJ
+
+# Object file suffix (normally "o").
+objext="$ac_objext"
+
+# Old archive suffix (normally "a").
+libext="$libext"
+
+# Shared library suffix (normally ".so").
+shrext='$shrext'
+
+# Executable file suffix (normally "").
+exeext="$exeext"
+
+# Additional compiler flags for building library objects.
+pic_flag=$lt_lt_prog_compiler_pic_GCJ
+pic_mode=$pic_mode
+
+# What is the maximum length of a command?
+max_cmd_len=$lt_cv_sys_max_cmd_len
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o=$lt_lt_cv_prog_compiler_c_o_GCJ
+
+# Must we lock files when doing compilation ?
+need_locks=$lt_need_locks
+
+# Do we need the lib prefix for modules?
+need_lib_prefix=$need_lib_prefix
+
+# Do we need a version for libraries?
+need_version=$need_version
+
+# Whether dlopen is supported.
+dlopen_support=$enable_dlopen
+
+# Whether dlopen of programs is supported.
+dlopen_self=$enable_dlopen_self
+
+# Whether dlopen of statically linked programs is supported.
+dlopen_self_static=$enable_dlopen_self_static
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag=$lt_lt_prog_compiler_static_GCJ
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag_GCJ
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec=$lt_export_dynamic_flag_spec_GCJ
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec=$lt_whole_archive_flag_spec_GCJ
+
+# Compiler flag to generate thread-safe objects.
+thread_safe_flag_spec=$lt_thread_safe_flag_spec_GCJ
+
+# Library versioning type.
+version_type=$version_type
+
+# Format of library name prefix.
+libname_spec=$lt_libname_spec
+
+# List of archive names.  First name is the real one, the rest are links.
+# The last name is the one that the linker finds with -lNAME.
+library_names_spec=$lt_library_names_spec
+
+# The coded name of the library, if different from the real name.
+soname_spec=$lt_soname_spec
+
+# Commands used to build and install an old-style archive.
+RANLIB=$lt_RANLIB
+old_archive_cmds=$lt_old_archive_cmds_GCJ
+old_postinstall_cmds=$lt_old_postinstall_cmds
+old_postuninstall_cmds=$lt_old_postuninstall_cmds
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=$lt_old_archive_from_new_cmds_GCJ
+
+# Create a temporary old-style archive to link instead of a shared archive.
+old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds_GCJ
+
+# Commands used to build and install a shared archive.
+archive_cmds=$lt_archive_cmds_GCJ
+archive_expsym_cmds=$lt_archive_expsym_cmds_GCJ
+postinstall_cmds=$lt_postinstall_cmds
+postuninstall_cmds=$lt_postuninstall_cmds
+
+# Commands used to build a loadable module (assumed same as above if empty)
+module_cmds=$lt_module_cmds_GCJ
+module_expsym_cmds=$lt_module_expsym_cmds_GCJ
+
+# Commands to strip libraries.
+old_striplib=$lt_old_striplib
+striplib=$lt_striplib
+
+# Dependencies to place before the objects being linked to create a
+# shared library.
+predep_objects=$lt_predep_objects_GCJ
+
+# Dependencies to place after the objects being linked to create a
+# shared library.
+postdep_objects=$lt_postdep_objects_GCJ
+
+# Dependencies to place before the objects being linked to create a
+# shared library.
+predeps=$lt_predeps_GCJ
+
+# Dependencies to place after the objects being linked to create a
+# shared library.
+postdeps=$lt_postdeps_GCJ
+
+# The library search path used internally by the compiler when linking
+# a shared library.
+compiler_lib_search_path=$lt_compiler_lib_search_path_GCJ
+
+# Method to check whether dependent libraries are shared objects.
+deplibs_check_method=$lt_deplibs_check_method
+
+# Command to use when deplibs_check_method == file_magic.
+file_magic_cmd=$lt_file_magic_cmd
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=$lt_allow_undefined_flag_GCJ
+
+# Flag that forces no undefined symbols.
+no_undefined_flag=$lt_no_undefined_flag_GCJ
+
+# Commands used to finish a libtool library installation in a directory.
+finish_cmds=$lt_finish_cmds
+
+# Same as above, but a single script fragment to be evaled but not shown.
+finish_eval=$lt_finish_eval
+
+# Take the output of nm and produce a listing of raw symbols and C names.
+global_symbol_pipe=$lt_lt_cv_sys_global_symbol_pipe
+
+# Transform the output of nm in a proper C declaration
+global_symbol_to_cdecl=$lt_lt_cv_sys_global_symbol_to_cdecl
+
+# Transform the output of nm in a C name address pair
+global_symbol_to_c_name_address=$lt_lt_cv_sys_global_symbol_to_c_name_address
+
+# This is the shared library runtime path variable.
+runpath_var=$runpath_var
+
+# This is the shared library path variable.
+shlibpath_var=$shlibpath_var
+
+# Is shlibpath searched before the hard-coded library search path?
+shlibpath_overrides_runpath=$shlibpath_overrides_runpath
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=$hardcode_action_GCJ
+
+# Whether we should hardcode library paths into libraries.
+hardcode_into_libs=$hardcode_into_libs
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist.
+hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec_GCJ
+
+# If ld is used when linking, flag to hardcode \$libdir into
+# a binary during linking. This must work even if \$libdir does
+# not exist.
+hardcode_libdir_flag_spec_ld=$lt_hardcode_libdir_flag_spec_ld_GCJ
+
+# Whether we need a single -rpath flag with a separated argument.
+hardcode_libdir_separator=$lt_hardcode_libdir_separator_GCJ
+
+# Set to yes if using DIR/libNAME${shared_ext} during linking hardcodes DIR into the
+# resulting binary.
+hardcode_direct=$hardcode_direct_GCJ
+
+# Set to yes if using the -LDIR flag during linking hardcodes DIR into the
+# resulting binary.
+hardcode_minus_L=$hardcode_minus_L_GCJ
+
+# Set to yes if using SHLIBPATH_VAR=DIR during linking hardcodes DIR into
+# the resulting binary.
+hardcode_shlibpath_var=$hardcode_shlibpath_var_GCJ
+
+# Set to yes if building a shared library automatically hardcodes DIR into the library
+# and all subsequent libraries and executables linked against it.
+hardcode_automatic=$hardcode_automatic_GCJ
+
+# Variables whose values should be saved in libtool wrapper scripts and
+# restored at relink time.
+variables_saved_for_relink="$variables_saved_for_relink"
+
+# Whether libtool must link a program against all its dependency libraries.
+link_all_deplibs=$link_all_deplibs_GCJ
+
+# Compile-time system search path for libraries
+sys_lib_search_path_spec=$lt_sys_lib_search_path_spec
+
+# Run-time system search path for libraries
+sys_lib_dlsearch_path_spec=$lt_sys_lib_dlsearch_path_spec
+
+# Fix the shell variable \$srcfile for the compiler.
+fix_srcfile_path="$fix_srcfile_path_GCJ"
+
+# Set to yes if exported symbols are required.
+always_export_symbols=$always_export_symbols_GCJ
+
+# The commands to list exported symbols.
+export_symbols_cmds=$lt_export_symbols_cmds_GCJ
+
+# The commands to extract the exported symbol list from a shared archive.
+extract_expsyms_cmds=$lt_extract_expsyms_cmds
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms=$lt_exclude_expsyms_GCJ
+
+# Symbols that must always be exported.
+include_expsyms=$lt_include_expsyms_GCJ
+
+# ### END LIBTOOL TAG CONFIG: $tagname
+
+__EOF__
+
+
+else
+  # If there is no Makefile yet, we rely on a make rule to execute
+  # `config.status --recheck' to rerun these tests and create the
+  # libtool script then.
+  test -f Makefile && make "$ltmain"
+fi
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+CC="$lt_save_CC"
+
+       else
+         tagname=""
+       fi
+       ;;
+
+      RC)
+
+
+
+# Source file extension for RC test sources.
+ac_ext=rc
+
+# Object file extension for compiled RC test sources.
+objext=o
+objext_RC=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code='sample MENU { MENUITEM "&Soup", 100, CHECKED }\n'
+
+# Code to be used in simple link tests
+lt_simple_link_test_code="$lt_simple_compile_test_code"
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+
+# Allow CC to be a program name with arguments.
+lt_save_CC="$CC"
+CC=${RC-"windres"}
+compiler=$CC
+compiler_RC=$CC
+lt_cv_prog_compiler_c_o_RC=yes
+
+# The else clause should only fire when bootstrapping the
+# libtool distribution, otherwise you forgot to ship ltmain.sh
+# with your package, and you will get complaints that there are
+# no rules to generate ltmain.sh.
+if test -f "$ltmain"; then
+  # See if we are running on zsh, and set the options which allow our commands through
+  # without removal of \ escapes.
+  if test -n "${ZSH_VERSION+set}" ; then
+    setopt NO_GLOB_SUBST
+  fi
+  # Now quote all the things that may contain metacharacters while being
+  # careful not to overquote the AC_SUBSTed values.  We take copies of the
+  # variables and quote the copies for generation of the libtool script.
+  for var in echo old_CC old_CFLAGS AR AR_FLAGS EGREP RANLIB LN_S LTCC NM SED SHELL \
+    libname_spec library_names_spec soname_spec extract_expsyms_cmds \
+    old_striplib striplib file_magic_cmd finish_cmds finish_eval \
+    deplibs_check_method reload_flag reload_cmds need_locks \
+    lt_cv_sys_global_symbol_pipe lt_cv_sys_global_symbol_to_cdecl \
+    lt_cv_sys_global_symbol_to_c_name_address \
+    sys_lib_search_path_spec sys_lib_dlsearch_path_spec \
+    old_postinstall_cmds old_postuninstall_cmds \
+    compiler_RC \
+    CC_RC \
+    LD_RC \
+    lt_prog_compiler_wl_RC \
+    lt_prog_compiler_pic_RC \
+    lt_prog_compiler_static_RC \
+    lt_prog_compiler_no_builtin_flag_RC \
+    export_dynamic_flag_spec_RC \
+    thread_safe_flag_spec_RC \
+    whole_archive_flag_spec_RC \
+    enable_shared_with_static_runtimes_RC \
+    old_archive_cmds_RC \
+    old_archive_from_new_cmds_RC \
+    predep_objects_RC \
+    postdep_objects_RC \
+    predeps_RC \
+    postdeps_RC \
+    compiler_lib_search_path_RC \
+    archive_cmds_RC \
+    archive_expsym_cmds_RC \
+    postinstall_cmds_RC \
+    postuninstall_cmds_RC \
+    old_archive_from_expsyms_cmds_RC \
+    allow_undefined_flag_RC \
+    no_undefined_flag_RC \
+    export_symbols_cmds_RC \
+    hardcode_libdir_flag_spec_RC \
+    hardcode_libdir_flag_spec_ld_RC \
+    hardcode_libdir_separator_RC \
+    hardcode_automatic_RC \
+    module_cmds_RC \
+    module_expsym_cmds_RC \
+    lt_cv_prog_compiler_c_o_RC \
+    exclude_expsyms_RC \
+    include_expsyms_RC; do
+
+    case $var in
+    old_archive_cmds_RC | \
+    old_archive_from_new_cmds_RC | \
+    archive_cmds_RC | \
+    archive_expsym_cmds_RC | \
+    module_cmds_RC | \
+    module_expsym_cmds_RC | \
+    old_archive_from_expsyms_cmds_RC | \
+    export_symbols_cmds_RC | \
+    extract_expsyms_cmds | reload_cmds | finish_cmds | \
+    postinstall_cmds | postuninstall_cmds | \
+    old_postinstall_cmds | old_postuninstall_cmds | \
+    sys_lib_search_path_spec | sys_lib_dlsearch_path_spec)
+      # Double-quote double-evaled strings.
+      eval "lt_$var=\\\"\`\$echo \"X\$$var\" | \$Xsed -e \"\$double_quote_subst\" -e \"\$sed_quote_subst\" -e \"\$delay_variable_subst\"\`\\\""
+      ;;
+    *)
+      eval "lt_$var=\\\"\`\$echo \"X\$$var\" | \$Xsed -e \"\$sed_quote_subst\"\`\\\""
+      ;;
+    esac
+  done
+
+  case $lt_echo in
+  *'\$0 --fallback-echo"')
+    lt_echo=`$echo "X$lt_echo" | $Xsed -e 's/\\\\\\\$0 --fallback-echo"$/$0 --fallback-echo"/'`
+    ;;
+  esac
+
+cfgfile="$ofile"
+
+  cat <<__EOF__ >> "$cfgfile"
+# ### BEGIN LIBTOOL TAG CONFIG: $tagname
+
+# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
+
+# Shell to use when invoking shell scripts.
+SHELL=$lt_SHELL
+
+# Whether or not to build shared libraries.
+build_libtool_libs=$enable_shared
+
+# Whether or not to build static libraries.
+build_old_libs=$enable_static
+
+# Whether or not to add -lc for building shared libraries.
+build_libtool_need_lc=$archive_cmds_need_lc_RC
+
+# Whether or not to disallow shared libs when runtime libs are static
+allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes_RC
+
+# Whether or not to optimize for fast installation.
+fast_install=$enable_fast_install
+
+# The host system.
+host_alias=$host_alias
+host=$host
+
+# An echo program that does not interpret backslashes.
+echo=$lt_echo
+
+# The archiver.
+AR=$lt_AR
+AR_FLAGS=$lt_AR_FLAGS
+
+# A C compiler.
+LTCC=$lt_LTCC
+
+# A language-specific compiler.
+CC=$lt_compiler_RC
+
+# Is the compiler the GNU C compiler?
+with_gcc=$GCC_RC
+
+# An ERE matcher.
+EGREP=$lt_EGREP
+
+# The linker used to build libraries.
+LD=$lt_LD_RC
+
+# Whether we need hard or soft links.
+LN_S=$lt_LN_S
+
+# A BSD-compatible nm program.
+NM=$lt_NM
+
+# A symbol stripping program
+STRIP=$STRIP
+
+# Used to examine libraries when file_magic_cmd begins "file"
+MAGIC_CMD=$MAGIC_CMD
+
+# Used on cygwin: DLL creation program.
+DLLTOOL="$DLLTOOL"
+
+# Used on cygwin: object dumper.
+OBJDUMP="$OBJDUMP"
+
+# Used on cygwin: assembler.
+AS="$AS"
+
+# The name of the directory that contains temporary libtool files.
+objdir=$objdir
+
+# How to create reloadable object files.
+reload_flag=$lt_reload_flag
+reload_cmds=$lt_reload_cmds
+
+# How to pass a linker flag through the compiler.
+wl=$lt_lt_prog_compiler_wl_RC
+
+# Object file suffix (normally "o").
+objext="$ac_objext"
+
+# Old archive suffix (normally "a").
+libext="$libext"
+
+# Shared library suffix (normally ".so").
+shrext='$shrext'
+
+# Executable file suffix (normally "").
+exeext="$exeext"
+
+# Additional compiler flags for building library objects.
+pic_flag=$lt_lt_prog_compiler_pic_RC
+pic_mode=$pic_mode
+
+# What is the maximum length of a command?
+max_cmd_len=$lt_cv_sys_max_cmd_len
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o=$lt_lt_cv_prog_compiler_c_o_RC
+
+# Must we lock files when doing compilation ?
+need_locks=$lt_need_locks
+
+# Do we need the lib prefix for modules?
+need_lib_prefix=$need_lib_prefix
+
+# Do we need a version for libraries?
+need_version=$need_version
+
+# Whether dlopen is supported.
+dlopen_support=$enable_dlopen
+
+# Whether dlopen of programs is supported.
+dlopen_self=$enable_dlopen_self
+
+# Whether dlopen of statically linked programs is supported.
+dlopen_self_static=$enable_dlopen_self_static
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag=$lt_lt_prog_compiler_static_RC
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag_RC
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec=$lt_export_dynamic_flag_spec_RC
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec=$lt_whole_archive_flag_spec_RC
+
+# Compiler flag to generate thread-safe objects.
+thread_safe_flag_spec=$lt_thread_safe_flag_spec_RC
+
+# Library versioning type.
+version_type=$version_type
+
+# Format of library name prefix.
+libname_spec=$lt_libname_spec
+
+# List of archive names.  First name is the real one, the rest are links.
+# The last name is the one that the linker finds with -lNAME.
+library_names_spec=$lt_library_names_spec
+
+# The coded name of the library, if different from the real name.
+soname_spec=$lt_soname_spec
+
+# Commands used to build and install an old-style archive.
+RANLIB=$lt_RANLIB
+old_archive_cmds=$lt_old_archive_cmds_RC
+old_postinstall_cmds=$lt_old_postinstall_cmds
+old_postuninstall_cmds=$lt_old_postuninstall_cmds
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=$lt_old_archive_from_new_cmds_RC
+
+# Create a temporary old-style archive to link instead of a shared archive.
+old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds_RC
+
+# Commands used to build and install a shared archive.
+archive_cmds=$lt_archive_cmds_RC
+archive_expsym_cmds=$lt_archive_expsym_cmds_RC
+postinstall_cmds=$lt_postinstall_cmds
+postuninstall_cmds=$lt_postuninstall_cmds
+
+# Commands used to build a loadable module (assumed same as above if empty)
+module_cmds=$lt_module_cmds_RC
+module_expsym_cmds=$lt_module_expsym_cmds_RC
+
+# Commands to strip libraries.
+old_striplib=$lt_old_striplib
+striplib=$lt_striplib
+
+# Dependencies to place before the objects being linked to create a
+# shared library.
+predep_objects=$lt_predep_objects_RC
+
+# Dependencies to place after the objects being linked to create a
+# shared library.
+postdep_objects=$lt_postdep_objects_RC
+
+# Dependencies to place before the objects being linked to create a
+# shared library.
+predeps=$lt_predeps_RC
+
+# Dependencies to place after the objects being linked to create a
+# shared library.
+postdeps=$lt_postdeps_RC
+
+# The library search path used internally by the compiler when linking
+# a shared library.
+compiler_lib_search_path=$lt_compiler_lib_search_path_RC
+
+# Method to check whether dependent libraries are shared objects.
+deplibs_check_method=$lt_deplibs_check_method
+
+# Command to use when deplibs_check_method == file_magic.
+file_magic_cmd=$lt_file_magic_cmd
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=$lt_allow_undefined_flag_RC
+
+# Flag that forces no undefined symbols.
+no_undefined_flag=$lt_no_undefined_flag_RC
+
+# Commands used to finish a libtool library installation in a directory.
+finish_cmds=$lt_finish_cmds
+
+# Same as above, but a single script fragment to be evaled but not shown.
+finish_eval=$lt_finish_eval
+
+# Take the output of nm and produce a listing of raw symbols and C names.
+global_symbol_pipe=$lt_lt_cv_sys_global_symbol_pipe
+
+# Transform the output of nm in a proper C declaration
+global_symbol_to_cdecl=$lt_lt_cv_sys_global_symbol_to_cdecl
+
+# Transform the output of nm in a C name address pair
+global_symbol_to_c_name_address=$lt_lt_cv_sys_global_symbol_to_c_name_address
+
+# This is the shared library runtime path variable.
+runpath_var=$runpath_var
+
+# This is the shared library path variable.
+shlibpath_var=$shlibpath_var
+
+# Is shlibpath searched before the hard-coded library search path?
+shlibpath_overrides_runpath=$shlibpath_overrides_runpath
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=$hardcode_action_RC
+
+# Whether we should hardcode library paths into libraries.
+hardcode_into_libs=$hardcode_into_libs
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist.
+hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec_RC
+
+# If ld is used when linking, flag to hardcode \$libdir into
+# a binary during linking. This must work even if \$libdir does
+# not exist.
+hardcode_libdir_flag_spec_ld=$lt_hardcode_libdir_flag_spec_ld_RC
+
+# Whether we need a single -rpath flag with a separated argument.
+hardcode_libdir_separator=$lt_hardcode_libdir_separator_RC
+
+# Set to yes if using DIR/libNAME${shared_ext} during linking hardcodes DIR into the
+# resulting binary.
+hardcode_direct=$hardcode_direct_RC
+
+# Set to yes if using the -LDIR flag during linking hardcodes DIR into the
+# resulting binary.
+hardcode_minus_L=$hardcode_minus_L_RC
+
+# Set to yes if using SHLIBPATH_VAR=DIR during linking hardcodes DIR into
+# the resulting binary.
+hardcode_shlibpath_var=$hardcode_shlibpath_var_RC
+
+# Set to yes if building a shared library automatically hardcodes DIR into the library
+# and all subsequent libraries and executables linked against it.
+hardcode_automatic=$hardcode_automatic_RC
+
+# Variables whose values should be saved in libtool wrapper scripts and
+# restored at relink time.
+variables_saved_for_relink="$variables_saved_for_relink"
+
+# Whether libtool must link a program against all its dependency libraries.
+link_all_deplibs=$link_all_deplibs_RC
+
+# Compile-time system search path for libraries
+sys_lib_search_path_spec=$lt_sys_lib_search_path_spec
+
+# Run-time system search path for libraries
+sys_lib_dlsearch_path_spec=$lt_sys_lib_dlsearch_path_spec
+
+# Fix the shell variable \$srcfile for the compiler.
+fix_srcfile_path="$fix_srcfile_path_RC"
+
+# Set to yes if exported symbols are required.
+always_export_symbols=$always_export_symbols_RC
+
+# The commands to list exported symbols.
+export_symbols_cmds=$lt_export_symbols_cmds_RC
+
+# The commands to extract the exported symbol list from a shared archive.
+extract_expsyms_cmds=$lt_extract_expsyms_cmds
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms=$lt_exclude_expsyms_RC
+
+# Symbols that must always be exported.
+include_expsyms=$lt_include_expsyms_RC
+
+# ### END LIBTOOL TAG CONFIG: $tagname
+
+__EOF__
+
+
+else
+  # If there is no Makefile yet, we rely on a make rule to execute
+  # `config.status --recheck' to rerun these tests and create the
+  # libtool script then.
+  test -f Makefile && make "$ltmain"
+fi
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+CC="$lt_save_CC"
+
+       ;;
+
+      *)
+       { { echo "$as_me:$LINENO: error: Unsupported tag name: $tagname" >&5
+echo "$as_me: error: Unsupported tag name: $tagname" >&2;}
+   { (exit 1); exit 1; }; }
+       ;;
+      esac
+
+      # Append the new tag name to the list of available tags.
+      if test -n "$tagname" ; then
+      available_tags="$available_tags $tagname"
+    fi
+    fi
+  done
+  IFS="$lt_save_ifs"
+
+  # Now substitute the updated list of available tags.
+  if eval "sed -e 's/^available_tags=.*\$/available_tags=\"$available_tags\"/' \"$ofile\" > \"${ofile}T\""; then
+    mv "${ofile}T" "$ofile"
+    chmod +x "$ofile"
+  else
+    rm -f "${ofile}T"
+    { { echo "$as_me:$LINENO: error: unable to update list of available tagged configurations." >&5
+echo "$as_me: error: unable to update list of available tagged configurations." >&2;}
+   { (exit 1); exit 1; }; }
+  fi
+fi
+
+
+
+# This can be used to rebuild libtool when needed
+LIBTOOL_DEPS="$ac_aux_dir/ltmain.sh"
+
+# Always use our own libtool.
+LIBTOOL='$(SHELL) $(top_builddir)/libtool'
+
+# Prevent multiple expansion
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+# Check whether --enable-64-bit or --disable-64-bit was given.
+if test "${enable_64_bit+set}" = set; then
+  enableval="$enable_64_bit"
+  case "${enableval}" in
+  yes)  want64=true  ;;
+  no)   want64=false ;;
+  *)    { { echo "$as_me:$LINENO: error: bad value ${enableval} for 64-bit option" >&5
+echo "$as_me: error: bad value ${enableval} for 64-bit option" >&2;}
+   { (exit 1); exit 1; }; } ;;
+esac
+else
+  want64=true
+fi;
+if test "${ac_cv_header_libelf_h+set}" = set; then
+  echo "$as_me:$LINENO: checking for libelf.h" >&5
+echo $ECHO_N "checking for libelf.h... $ECHO_C" >&6
+if test "${ac_cv_header_libelf_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_libelf_h" >&5
+echo "${ECHO_T}$ac_cv_header_libelf_h" >&6
+else
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking libelf.h usability" >&5
+echo $ECHO_N "checking libelf.h usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+#include <libelf.h>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_header_compiler=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking libelf.h presence" >&5
+echo $ECHO_N "checking libelf.h presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <libelf.h>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_c_preproc_warn_flag
+  else
+    ac_cpp_err=
+  fi
+else
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  ac_header_preproc=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc in
+  yes:no )
+    { echo "$as_me:$LINENO: WARNING: libelf.h: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: libelf.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: libelf.h: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: libelf.h: proceeding with the preprocessor's result" >&2;}
+    (
+      cat <<\_ASBOX
+## ------------------------------------ ##
+## Report this to bug-autoconf@gnu.org. ##
+## ------------------------------------ ##
+_ASBOX
+    ) |
+      sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+  no:yes )
+    { echo "$as_me:$LINENO: WARNING: libelf.h: present but cannot be compiled" >&5
+echo "$as_me: WARNING: libelf.h: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: libelf.h: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: libelf.h: check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: libelf.h: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: libelf.h: proceeding with the preprocessor's result" >&2;}
+    (
+      cat <<\_ASBOX
+## ------------------------------------ ##
+## Report this to bug-autoconf@gnu.org. ##
+## ------------------------------------ ##
+_ASBOX
+    ) |
+      sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+esac
+echo "$as_me:$LINENO: checking for libelf.h" >&5
+echo $ECHO_N "checking for libelf.h... $ECHO_C" >&6
+if test "${ac_cv_header_libelf_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_cv_header_libelf_h=$ac_header_preproc
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_libelf_h" >&5
+echo "${ECHO_T}$ac_cv_header_libelf_h" >&6
+
+fi
+if test $ac_cv_header_libelf_h = yes; then
+  :
+else
+
+  if test -f /usr/include/elfutils/libelf.h; then
+    CPPFLAGS="$CPPFLAGS -I /usr/include/elfutils"
+  elif test -f /usr/local/include/elfutils/libelf.h; then
+    CPPFLAGS="$CPPFLAGS -I /usr/local/include/elfutils"
+  elif test -f /usr/include/libelf/libelf.h; then
+    CPPFLAGS="$CPPFLAGS -I /usr/include/libelf"
+  elif test -f /usr/local/include/libelf/libelf.h; then
+    CPPFLAGS="$CPPFLAGS -I /usr/local/include/libelf"
+  else
+    { { echo "$as_me:$LINENO: error: libelf.h not found" >&5
+echo "$as_me: error: libelf.h not found" >&2;}
+   { (exit 1); exit 1; }; }
+  fi
+fi
+
+
+LIBGELF=""
+if test "$want64"x = falsex; then
+  GELFINCLUDE='-I$(top_srcdir)/gelfx32'
+else
+  GELFINCLUDE='-I$(top_srcdir)/gelfx'
+  if test "${ac_cv_header_gelf_h+set}" = set; then
+  echo "$as_me:$LINENO: checking for gelf.h" >&5
+echo $ECHO_N "checking for gelf.h... $ECHO_C" >&6
+if test "${ac_cv_header_gelf_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_gelf_h" >&5
+echo "${ECHO_T}$ac_cv_header_gelf_h" >&6
+else
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking gelf.h usability" >&5
+echo $ECHO_N "checking gelf.h usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+#include <gelf.h>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_header_compiler=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking gelf.h presence" >&5
+echo $ECHO_N "checking gelf.h presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <gelf.h>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_c_preproc_warn_flag
+  else
+    ac_cpp_err=
+  fi
+else
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  ac_header_preproc=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc in
+  yes:no )
+    { echo "$as_me:$LINENO: WARNING: gelf.h: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: gelf.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: gelf.h: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: gelf.h: proceeding with the preprocessor's result" >&2;}
+    (
+      cat <<\_ASBOX
+## ------------------------------------ ##
+## Report this to bug-autoconf@gnu.org. ##
+## ------------------------------------ ##
+_ASBOX
+    ) |
+      sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+  no:yes )
+    { echo "$as_me:$LINENO: WARNING: gelf.h: present but cannot be compiled" >&5
+echo "$as_me: WARNING: gelf.h: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: gelf.h: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: gelf.h: check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: gelf.h: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: gelf.h: proceeding with the preprocessor's result" >&2;}
+    (
+      cat <<\_ASBOX
+## ------------------------------------ ##
+## Report this to bug-autoconf@gnu.org. ##
+## ------------------------------------ ##
+_ASBOX
+    ) |
+      sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+esac
+echo "$as_me:$LINENO: checking for gelf.h" >&5
+echo $ECHO_N "checking for gelf.h... $ECHO_C" >&6
+if test "${ac_cv_header_gelf_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_cv_header_gelf_h=$ac_header_preproc
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_gelf_h" >&5
+echo "${ECHO_T}$ac_cv_header_gelf_h" >&6
+
+fi
+if test $ac_cv_header_gelf_h = yes; then
+  :
+else
+
+    GELFINCLUDE="$GELFINCLUDE "'-I$(top_srcdir)/gelf'
+    LIBGELF='../gelf/libgelf.la'
+
+fi
+
+
+fi
+
+echo "$as_me:$LINENO: checking for elf_begin in -lelf" >&5
+echo $ECHO_N "checking for elf_begin in -lelf... $ECHO_C" >&6
+if test "${ac_cv_lib_elf_elf_begin+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lelf  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char elf_begin ();
+int
+main ()
+{
+elf_begin ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_elf_elf_begin=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_elf_elf_begin=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_elf_elf_begin" >&5
+echo "${ECHO_T}$ac_cv_lib_elf_elf_begin" >&6
+if test $ac_cv_lib_elf_elf_begin = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBELF 1
+_ACEOF
+
+  LIBS="-lelf $LIBS"
+
+fi
+
+
+
+
+echo "$as_me:$LINENO: checking for gelf_getvernaux" >&5
+echo $ECHO_N "checking for gelf_getvernaux... $ECHO_C" >&6
+if test "${ac_cv_func_gelf_getvernaux+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char gelf_getvernaux (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char gelf_getvernaux ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_gelf_getvernaux) || defined (__stub___gelf_getvernaux)
+choke me
+#else
+char (*f) () = gelf_getvernaux;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != gelf_getvernaux;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_func_gelf_getvernaux=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_func_gelf_getvernaux=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_gelf_getvernaux" >&5
+echo "${ECHO_T}$ac_cv_func_gelf_getvernaux" >&6
+if test $ac_cv_func_gelf_getvernaux = yes; then
+  newbu=true
+else
+  newbu=false
+fi
+
+
+echo "$as_me:$LINENO: checking whether FTW_ACTIONRETVAL is supported" >&5
+echo $ECHO_N "checking whether FTW_ACTIONRETVAL is supported... $ECHO_C" >&6
+if test "${ac_cv_ftw_actionretval+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+    cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+  #ifndef _GNU_SOURCE
+  #define _GNU_SOURCE 1
+  #endif
+  #include <ftw.h>
+  #ifdef FTW_ACTIONRETVAL
+  FTW supports ACTIONRETVAL
+  #endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "FTW supports ACTIONRETVAL" >/dev/null 2>&1; then
+  ac_cv_ftw_actionretval=yes
+else
+  ac_cv_ftw_actionretval=no
+fi
+rm -f conftest*
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_ftw_actionretval" >&5
+echo "${ECHO_T}$ac_cv_ftw_actionretval" >&6
+if test "x$ac_cv_ftw_actionretval" = xyes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_FTW_ACTIONRETVAL 1
+_ACEOF
+
+fi
+
+
+echo "$as_me:$LINENO: checking for is_selinux_enabled in -lselinux" >&5
+echo $ECHO_N "checking for is_selinux_enabled in -lselinux... $ECHO_C" >&6
+if test "${ac_cv_lib_selinux_is_selinux_enabled+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lselinux  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char is_selinux_enabled ();
+int
+main ()
+{
+is_selinux_enabled ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_selinux_is_selinux_enabled=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_selinux_is_selinux_enabled=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_selinux_is_selinux_enabled" >&5
+echo "${ECHO_T}$ac_cv_lib_selinux_is_selinux_enabled" >&6
+if test $ac_cv_lib_selinux_is_selinux_enabled = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBSELINUX 1
+_ACEOF
+
+  LIBS="-lselinux $LIBS"
+
+fi
+
+
+for ac_header in selinux/selinux.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+else
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_header_compiler=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_c_preproc_warn_flag
+  else
+    ac_cpp_err=
+  fi
+else
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  ac_header_preproc=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc in
+  yes:no )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
+    (
+      cat <<\_ASBOX
+## ------------------------------------ ##
+## Report this to bug-autoconf@gnu.org. ##
+## ------------------------------------ ##
+_ASBOX
+    ) |
+      sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+  no:yes )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
+    (
+      cat <<\_ASBOX
+## ------------------------------------ ##
+## Report this to bug-autoconf@gnu.org. ##
+## ------------------------------------ ##
+_ASBOX
+    ) |
+      sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  eval "$as_ac_Header=$ac_header_preproc"
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+
+fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+if test x"$newbu" = xtrue; then
+  # Don't use LFS for libelf-0.x
+  # Check whether --enable-largefile or --disable-largefile was given.
+if test "${enable_largefile+set}" = set; then
+  enableval="$enable_largefile"
+
+fi;
+if test "$enable_largefile" != no; then
+
+  echo "$as_me:$LINENO: checking for special C compiler options needed for large files" >&5
+echo $ECHO_N "checking for special C compiler options needed for large files... $ECHO_C" >&6
+if test "${ac_cv_sys_largefile_CC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_cv_sys_largefile_CC=no
+     if test "$GCC" != yes; then
+       ac_save_CC=$CC
+       while :; do
+        # IRIX 6.2 and later do not support large files by default,
+        # so use the C compiler's -n32 option if that helps.
+         cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+    We can't simply define LARGE_OFF_T to be 9223372036854775807,
+    since some C++ compilers masquerading as C compilers
+    incorrectly reject 9223372036854775807.  */
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+                      && LARGE_OFF_T % 2147483647 == 1)
+                     ? 1 : -1];
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+        rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.$ac_objext
+        CC="$CC -n32"
+        rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_sys_largefile_CC=' -n32'; break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.$ac_objext
+         break
+       done
+       CC=$ac_save_CC
+       rm -f conftest.$ac_ext
+    fi
+fi
+echo "$as_me:$LINENO: result: $ac_cv_sys_largefile_CC" >&5
+echo "${ECHO_T}$ac_cv_sys_largefile_CC" >&6
+  if test "$ac_cv_sys_largefile_CC" != no; then
+    CC=$CC$ac_cv_sys_largefile_CC
+  fi
+
+  echo "$as_me:$LINENO: checking for _FILE_OFFSET_BITS value needed for large files" >&5
+echo $ECHO_N "checking for _FILE_OFFSET_BITS value needed for large files... $ECHO_C" >&6
+if test "${ac_cv_sys_file_offset_bits+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  while :; do
+  ac_cv_sys_file_offset_bits=no
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+    We can't simply define LARGE_OFF_T to be 9223372036854775807,
+    since some C++ compilers masquerading as C compilers
+    incorrectly reject 9223372036854775807.  */
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+                      && LARGE_OFF_T % 2147483647 == 1)
+                     ? 1 : -1];
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#define _FILE_OFFSET_BITS 64
+#include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+    We can't simply define LARGE_OFF_T to be 9223372036854775807,
+    since some C++ compilers masquerading as C compilers
+    incorrectly reject 9223372036854775807.  */
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+                      && LARGE_OFF_T % 2147483647 == 1)
+                     ? 1 : -1];
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_sys_file_offset_bits=64; break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+  break
+done
+fi
+echo "$as_me:$LINENO: result: $ac_cv_sys_file_offset_bits" >&5
+echo "${ECHO_T}$ac_cv_sys_file_offset_bits" >&6
+if test "$ac_cv_sys_file_offset_bits" != no; then
+
+cat >>confdefs.h <<_ACEOF
+#define _FILE_OFFSET_BITS $ac_cv_sys_file_offset_bits
+_ACEOF
+
+fi
+rm -f conftest*
+  echo "$as_me:$LINENO: checking for _LARGE_FILES value needed for large files" >&5
+echo $ECHO_N "checking for _LARGE_FILES value needed for large files... $ECHO_C" >&6
+if test "${ac_cv_sys_large_files+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  while :; do
+  ac_cv_sys_large_files=no
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+    We can't simply define LARGE_OFF_T to be 9223372036854775807,
+    since some C++ compilers masquerading as C compilers
+    incorrectly reject 9223372036854775807.  */
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+                      && LARGE_OFF_T % 2147483647 == 1)
+                     ? 1 : -1];
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#define _LARGE_FILES 1
+#include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+    We can't simply define LARGE_OFF_T to be 9223372036854775807,
+    since some C++ compilers masquerading as C compilers
+    incorrectly reject 9223372036854775807.  */
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+                      && LARGE_OFF_T % 2147483647 == 1)
+                     ? 1 : -1];
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_sys_large_files=1; break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+  break
+done
+fi
+echo "$as_me:$LINENO: result: $ac_cv_sys_large_files" >&5
+echo "${ECHO_T}$ac_cv_sys_large_files" >&6
+if test "$ac_cv_sys_large_files" != no; then
+
+cat >>confdefs.h <<_ACEOF
+#define _LARGE_FILES $ac_cv_sys_large_files
+_ACEOF
+
+fi
+rm -f conftest*
+fi
+
+fi
+
+if test "$cross_compiling" = yes; then
+  { echo "$as_me:$LINENO: WARNING: Could not test whether libelf properly converts Elf64_Sxword quantities.
+If you are using libelf-0.7.0 and your libelf is buggy, please use
+patches/libelf-0.7.0.patch." >&5
+echo "$as_me: WARNING: Could not test whether libelf properly converts Elf64_Sxword quantities.
+If you are using libelf-0.7.0 and your libelf is buggy, please use
+patches/libelf-0.7.0.patch." >&2;}
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <elf.h>
+#include <libelf.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+static unsigned char sparc64_elf[] = {
+0x7f,0x45,0x4c,0x46,0x02,0x02,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x01,0x00,0x2b,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x78,
+0x00,0x00,0x00,0x02,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x40,0x00,0x08,0x00,0x05,
+0x00,0x00,0x07,0xff,0xf0,0x00,0x00,0x00,0x00,0x2e,0x73,0x79,0x6d,0x74,0x61,0x62,
+0x00,0x2e,0x73,0x74,0x72,0x74,0x61,0x62,0x00,0x2e,0x73,0x68,0x73,0x74,0x72,0x74,
+0x61,0x62,0x00,0x2e,0x74,0x65,0x78,0x74,0x00,0x2e,0x64,0x61,0x74,0x61,0x00,0x2e,
+0x62,0x73,0x73,0x00,0x66,0x6f,0x6f,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1b,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x21,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x27,0x00,0x00,0x00,0x08,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x2c,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x11,0x00,0x00,0x00,0x03,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x48,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x02,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x78,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x78,
+0x00,0x00,0x00,0x07,0x00,0x00,0x00,0x05,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x00,0x00,0x00,0x09,0x00,0x00,0x00,0x03,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x02,0xf0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x02,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x04,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00 };
+
+int main (void)
+{
+  Elf *elf;
+  int fd;
+  Elf64_Ehdr *ehdr;
+  Elf64_Addr val;
+  Elf_Scn *scn;
+
+  fd = open ("conflibelftest", O_RDWR | O_CREAT | O_EXCL, 0600);
+  if (fd == -1) exit (1);
+  unlink ("conflibelftest");
+  if (write (fd, sparc64_elf, sizeof(sparc64_elf)) != sizeof(sparc64_elf))
+    exit (1);
+  if (lseek (fd, 0, SEEK_SET) != 0) exit (1);
+  elf_version (EV_CURRENT);
+  elf = elf_begin (fd, ELF_C_RDWR, NULL); if (elf == NULL) exit (2);
+  if ((ehdr = elf64_getehdr (elf)) == NULL) exit (3);
+  scn = NULL;
+  while ((scn = elf_nextscn (elf, scn)) != NULL)
+    {
+      char *name = NULL;
+      Elf64_Shdr *shdr;
+      Elf_Data *src, *dst;
+
+      if ((shdr = elf64_getshdr (scn))
+         && (name = elf_strptr (elf, ehdr->e_shstrndx, shdr->sh_name))
+         && !strcmp (name, "foo"))
+       {
+         src = elf_rawdata (scn, NULL);
+         if (shdr->sh_size != 8 || src->d_off || src->d_size != 8) exit (4);
+         if (src == NULL || elf_rawdata (scn, src) != NULL) exit (5);
+         if ((dst = elf_newdata (scn)) == NULL) exit (6);
+         dst->d_buf = &val;
+         dst->d_size = 8;
+         dst->d_off = 0;
+         dst->d_type = ELF_T_SXWORD;
+         src->d_type = ELF_T_SXWORD;
+         if (elf64_xlatetom (dst, src, ELFDATA2MSB) == NULL) exit (7);
+         if (val != 0x7fff0000000)
+           exit (42);
+         elf_end (elf);
+         exit (0);
+       }
+    }
+  exit (8);
+}
+
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  :
+else
+  echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+( exit $ac_status )
+{ { echo "$as_me:$LINENO: error: libelf does not properly convert Elf64_Sxword quantities.
+If you are using libelf-0.7.0, please use patches/libelf-0.7.0.patch." >&5
+echo "$as_me: error: libelf does not properly convert Elf64_Sxword quantities.
+If you are using libelf-0.7.0, please use patches/libelf-0.7.0.patch." >&2;}
+   { (exit 1); exit 1; }; }
+fi
+rm -f core core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+
+
+                                                                                          ac_config_files="$ac_config_files Makefile src/Makefile gelfx/Makefile gelfx32/Makefile gelf/Makefile m4/Makefile patches/Makefile doc/Makefile testsuite/Makefile"
+cat >confcache <<\_ACEOF
+# This file is a shell script that caches the results of configure
+# tests run on this system so they can be shared between configure
+# scripts and configure runs, see configure's option --config-cache.
+# It is not useful on other systems.  If it contains results you don't
+# want to keep, you may remove or edit it.
+#
+# config.status only pays attention to the cache file if you give it
+# the --recheck option to rerun configure.
+#
+# `ac_cv_env_foo' variables (set or unset) will be overridden when
+# loading this file, other *unset* `ac_cv_foo' will be assigned the
+# following values.
+
+_ACEOF
+
+# The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, don't put newlines in cache variables' values.
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
+{
+  (set) 2>&1 |
+    case `(ac_space=' '; set | grep ac_space) 2>&1` in
+    *ac_space=\ *)
+      # `set' does not quote correctly, so add quotes (double-quote
+      # substitution turns \\\\ into \\, and sed turns \\ into \).
+      sed -n \
+        "s/'/'\\\\''/g;
+         s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
+      ;;
+    *)
+      # `set' quotes correctly as required by POSIX, so do not add quotes.
+      sed -n \
+        "s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p"
+      ;;
+    esac;
+} |
+  sed '
+     t clear
+     : clear
+     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
+     t end
+     /^ac_cv_env/!s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
+     : end' >>confcache
+if diff $cache_file confcache >/dev/null 2>&1; then :; else
+  if test -w $cache_file; then
+    test "x$cache_file" != "x/dev/null" && echo "updating cache $cache_file"
+    cat confcache >$cache_file
+  else
+    echo "not updating unwritable cache $cache_file"
+  fi
+fi
+rm -f confcache
+
+test "x$prefix" = xNONE && prefix=$ac_default_prefix
+# Let make expand exec_prefix.
+test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
+
+# VPATH may cause trouble with some makes, so we remove $(srcdir),
+# ${srcdir} and @srcdir@ from VPATH if srcdir is ".", strip leading and
+# trailing colons and then remove the whole line if VPATH becomes empty
+# (actually we leave an empty line to preserve line numbers).
+if test "x$srcdir" = x.; then
+  ac_vpsub='/^[        ]*VPATH[        ]*=/{
+s/:*\$(srcdir):*/:/;
+s/:*\${srcdir}:*/:/;
+s/:*@srcdir@:*/:/;
+s/^\([^=]*=[   ]*\):*/\1/;
+s/:*$//;
+s/^[^=]*=[     ]*$//;
+}'
+fi
+
+DEFS=-DHAVE_CONFIG_H
+
+ac_libobjs=
+ac_ltlibobjs=
+for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
+  # 1. Remove the extension, and $U if already installed.
+  ac_i=`echo "$ac_i" |
+         sed 's/\$U\././;s/\.o$//;s/\.obj$//'`
+  # 2. Add them.
+  ac_libobjs="$ac_libobjs $ac_i\$U.$ac_objext"
+  ac_ltlibobjs="$ac_ltlibobjs $ac_i"'$U.lo'
+done
+LIBOBJS=$ac_libobjs
+
+LTLIBOBJS=$ac_ltlibobjs
+
+
+if test -z "${AMDEP_TRUE}" && test -z "${AMDEP_FALSE}"; then
+  { { echo "$as_me:$LINENO: error: conditional \"AMDEP\" was never defined.
+Usually this means the macro was only invoked conditionally." >&5
+echo "$as_me: error: conditional \"AMDEP\" was never defined.
+Usually this means the macro was only invoked conditionally." >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+: ${CONFIG_STATUS=./config.status}
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files $CONFIG_STATUS"
+{ echo "$as_me:$LINENO: creating $CONFIG_STATUS" >&5
+echo "$as_me: creating $CONFIG_STATUS" >&6;}
+cat >$CONFIG_STATUS <<_ACEOF
+#! $SHELL
+# Generated by $as_me.
+# Run this file to recreate the current configuration.
+# Compiler output produced by configure, useful for debugging
+# configure, is in config.log if it exists.
+
+debug=false
+ac_cs_recheck=false
+ac_cs_silent=false
+SHELL=\${CONFIG_SHELL-$SHELL}
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+## --------------------- ##
+## M4sh Initialization.  ##
+## --------------------- ##
+
+# Be Bourne compatible
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+  emulate sh
+  NULLCMD=:
+  # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
+  set -o posix
+fi
+
+# Support unset when possible.
+if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
+  as_unset=unset
+else
+  as_unset=false
+fi
+
+
+# Work around bugs in pre-3.0 UWIN ksh.
+$as_unset ENV MAIL MAILPATH
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+for as_var in \
+  LANG LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_CTYPE LC_IDENTIFICATION \
+  LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \
+  LC_TELEPHONE LC_TIME
+do
+  if (set +x; test -n "`(eval $as_var=C; export $as_var) 2>&1`"); then
+    eval $as_var=C; export $as_var
+  else
+    $as_unset $as_var
+  fi
+done
+
+# Required to use basename.
+if expr a : '\(a\)' >/dev/null 2>&1; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename /) >/dev/null 2>&1 && test "X`basename / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+
+# Name of the executable.
+as_me=`$as_basename "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+        X"$0" : 'X\(//\)$' \| \
+        X"$0" : 'X\(/\)$' \| \
+        .     : '\(.\)' 2>/dev/null ||
+echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/; q; }
+         /^X\/\(\/\/\)$/{ s//\1/; q; }
+         /^X\/\(\/\).*/{ s//\1/; q; }
+         s/.*/./; q'`
+
+
+# PATH needs CR, and LINENO needs CR and PATH.
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  echo "#! /bin/sh" >conf$$.sh
+  echo  "exit 0"   >>conf$$.sh
+  chmod +x conf$$.sh
+  if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
+    PATH_SEPARATOR=';'
+  else
+    PATH_SEPARATOR=:
+  fi
+  rm -f conf$$.sh
+fi
+
+
+  as_lineno_1=$LINENO
+  as_lineno_2=$LINENO
+  as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
+  test "x$as_lineno_1" != "x$as_lineno_2" &&
+  test "x$as_lineno_3"  = "x$as_lineno_2"  || {
+  # Find who we are.  Look in the path if we contain no path at all
+  # relative or not.
+  case $0 in
+    *[\\/]* ) as_myself=$0 ;;
+    *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+done
+
+       ;;
+  esac
+  # We did not find ourselves, most probably we were run as `sh COMMAND'
+  # in which case we are not to be found in the path.
+  if test "x$as_myself" = x; then
+    as_myself=$0
+  fi
+  if test ! -f "$as_myself"; then
+    { { echo "$as_me:$LINENO: error: cannot find myself; rerun with an absolute path" >&5
+echo "$as_me: error: cannot find myself; rerun with an absolute path" >&2;}
+   { (exit 1); exit 1; }; }
+  fi
+  case $CONFIG_SHELL in
+  '')
+    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for as_base in sh bash ksh sh5; do
+        case $as_dir in
+        /*)
+          if ("$as_dir/$as_base" -c '
+  as_lineno_1=$LINENO
+  as_lineno_2=$LINENO
+  as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
+  test "x$as_lineno_1" != "x$as_lineno_2" &&
+  test "x$as_lineno_3"  = "x$as_lineno_2" ') 2>/dev/null; then
+            $as_unset BASH_ENV || test "${BASH_ENV+set}" != set || { BASH_ENV=; export BASH_ENV; }
+            $as_unset ENV || test "${ENV+set}" != set || { ENV=; export ENV; }
+            CONFIG_SHELL=$as_dir/$as_base
+            export CONFIG_SHELL
+            exec "$CONFIG_SHELL" "$0" ${1+"$@"}
+          fi;;
+        esac
+       done
+done
+;;
+  esac
+
+  # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
+  # uniformly replaced by the line number.  The first 'sed' inserts a
+  # line-number line before each line; the second 'sed' does the real
+  # work.  The second script uses 'N' to pair each line-number line
+  # with the numbered line, and appends trailing '-' during
+  # substitution so that $LINENO is not a special case at line end.
+  # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
+  # second 'sed' script.  Blame Lee E. McMahon for sed's syntax.  :-)
+  sed '=' <$as_myself |
+    sed '
+      N
+      s,$,-,
+      : loop
+      s,^\(['$as_cr_digits']*\)\(.*\)[$]LINENO\([^'$as_cr_alnum'_]\),\1\2\1\3,
+      t loop
+      s,-$,,
+      s,^['$as_cr_digits']*\n,,
+    ' >$as_me.lineno &&
+  chmod +x $as_me.lineno ||
+    { { echo "$as_me:$LINENO: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&5
+echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2;}
+   { (exit 1); exit 1; }; }
+
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensible to this).
+  . ./$as_me.lineno
+  # Exit status is that of the last command.
+  exit
+}
+
+
+case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
+  *c*,-n*) ECHO_N= ECHO_C='
+' ECHO_T='     ' ;;
+  *c*,*  ) ECHO_N=-n ECHO_C= ECHO_T= ;;
+  *)       ECHO_N= ECHO_C='\c' ECHO_T= ;;
+esac
+
+if expr a : '\(a\)' >/dev/null 2>&1; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+rm -f conf$$ conf$$.exe conf$$.file
+echo >conf$$.file
+if ln -s conf$$.file conf$$ 2>/dev/null; then
+  # We could just check for DJGPP; but this test a) works b) is more generic
+  # and c) will remain valid once DJGPP supports symlinks (DJGPP 2.04).
+  if test -f conf$$.exe; then
+    # Don't use ln at all; we don't have any links
+    as_ln_s='cp -p'
+  else
+    as_ln_s='ln -s'
+  fi
+elif ln conf$$.file conf$$ 2>/dev/null; then
+  as_ln_s=ln
+else
+  as_ln_s='cp -p'
+fi
+rm -f conf$$ conf$$.exe conf$$.file
+
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p=:
+else
+  as_mkdir_p=false
+fi
+
+as_executable_p="test -f"
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="sed y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="sed y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.
+as_nl='
+'
+IFS="  $as_nl"
+
+# CDPATH.
+$as_unset CDPATH
+
+exec 6>&1
+
+# Open the log real soon, to keep \$[0] and so on meaningful, and to
+# report actual input values of CONFIG_FILES etc. instead of their
+# values after options handling.  Logging --version etc. is OK.
+exec 5>>config.log
+{
+  echo
+  sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
+## Running $as_me. ##
+_ASBOX
+} >&5
+cat >&5 <<_CSEOF
+
+This file was extended by $as_me, which was
+generated by GNU Autoconf 2.57.  Invocation command line was
+
+  CONFIG_FILES    = $CONFIG_FILES
+  CONFIG_HEADERS  = $CONFIG_HEADERS
+  CONFIG_LINKS    = $CONFIG_LINKS
+  CONFIG_COMMANDS = $CONFIG_COMMANDS
+  $ $0 $@
+
+_CSEOF
+echo "on `(hostname || uname -n) 2>/dev/null | sed 1q`" >&5
+echo >&5
+_ACEOF
+
+# Files that config.status was made for.
+if test -n "$ac_config_files"; then
+  echo "config_files=\"$ac_config_files\"" >>$CONFIG_STATUS
+fi
+
+if test -n "$ac_config_headers"; then
+  echo "config_headers=\"$ac_config_headers\"" >>$CONFIG_STATUS
+fi
+
+if test -n "$ac_config_links"; then
+  echo "config_links=\"$ac_config_links\"" >>$CONFIG_STATUS
+fi
+
+if test -n "$ac_config_commands"; then
+  echo "config_commands=\"$ac_config_commands\"" >>$CONFIG_STATUS
+fi
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+
+ac_cs_usage="\
+\`$as_me' instantiates files from templates according to the
+current configuration.
+
+Usage: $0 [OPTIONS] [FILE]...
+
+  -h, --help       print this help, then exit
+  -V, --version    print version number, then exit
+  -q, --quiet      do not print progress messages
+  -d, --debug      don't remove temporary files
+      --recheck    update $as_me by reconfiguring in the same conditions
+  --file=FILE[:TEMPLATE]
+                   instantiate the configuration file FILE
+  --header=FILE[:TEMPLATE]
+                   instantiate the configuration header FILE
+
+Configuration files:
+$config_files
+
+Configuration headers:
+$config_headers
+
+Configuration commands:
+$config_commands
+
+Report bugs to <bug-autoconf@gnu.org>."
+_ACEOF
+
+cat >>$CONFIG_STATUS <<_ACEOF
+ac_cs_version="\\
+config.status
+configured by $0, generated by GNU Autoconf 2.57,
+  with options \\"`echo "$ac_configure_args" | sed 's/[\\""\`\$]/\\\\&/g'`\\"
+
+Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001
+Free Software Foundation, Inc.
+This config.status script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it."
+srcdir=$srcdir
+INSTALL="$INSTALL"
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+# If no file are specified by the user, then we need to provide default
+# value.  By we need to know if files were specified by the user.
+ac_need_defaults=:
+while test $# != 0
+do
+  case $1 in
+  --*=*)
+    ac_option=`expr "x$1" : 'x\([^=]*\)='`
+    ac_optarg=`expr "x$1" : 'x[^=]*=\(.*\)'`
+    ac_shift=:
+    ;;
+  -*)
+    ac_option=$1
+    ac_optarg=$2
+    ac_shift=shift
+    ;;
+  *) # This is not an option, so the user has probably given explicit
+     # arguments.
+     ac_option=$1
+     ac_need_defaults=false;;
+  esac
+
+  case $ac_option in
+  # Handling of the options.
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
+  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
+    ac_cs_recheck=: ;;
+  --version | --vers* | -V )
+    echo "$ac_cs_version"; exit 0 ;;
+  --he | --h)
+    # Conflict between --help and --header
+    { { echo "$as_me:$LINENO: error: ambiguous option: $1
+Try \`$0 --help' for more information." >&5
+echo "$as_me: error: ambiguous option: $1
+Try \`$0 --help' for more information." >&2;}
+   { (exit 1); exit 1; }; };;
+  --help | --hel | -h )
+    echo "$ac_cs_usage"; exit 0 ;;
+  --debug | --d* | -d )
+    debug=: ;;
+  --file | --fil | --fi | --f )
+    $ac_shift
+    CONFIG_FILES="$CONFIG_FILES $ac_optarg"
+    ac_need_defaults=false;;
+  --header | --heade | --head | --hea )
+    $ac_shift
+    CONFIG_HEADERS="$CONFIG_HEADERS $ac_optarg"
+    ac_need_defaults=false;;
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil | --si | --s)
+    ac_cs_silent=: ;;
+
+  # This is an error.
+  -*) { { echo "$as_me:$LINENO: error: unrecognized option: $1
+Try \`$0 --help' for more information." >&5
+echo "$as_me: error: unrecognized option: $1
+Try \`$0 --help' for more information." >&2;}
+   { (exit 1); exit 1; }; } ;;
+
+  *) ac_config_targets="$ac_config_targets $1" ;;
+
+  esac
+  shift
+done
+
+ac_configure_extra_args=
+
+if $ac_cs_silent; then
+  exec 6>/dev/null
+  ac_configure_extra_args="$ac_configure_extra_args --silent"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF
+if \$ac_cs_recheck; then
+  echo "running $SHELL $0 " $ac_configure_args \$ac_configure_extra_args " --no-create --no-recursion" >&6
+  exec $SHELL $0 $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+fi
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<_ACEOF
+#
+# INIT-COMMANDS section.
+#
+
+AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"
+
+_ACEOF
+
+
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+for ac_config_target in $ac_config_targets
+do
+  case "$ac_config_target" in
+  # Handling of arguments.
+  "Makefile" ) CONFIG_FILES="$CONFIG_FILES Makefile" ;;
+  "src/Makefile" ) CONFIG_FILES="$CONFIG_FILES src/Makefile" ;;
+  "gelfx/Makefile" ) CONFIG_FILES="$CONFIG_FILES gelfx/Makefile" ;;
+  "gelfx32/Makefile" ) CONFIG_FILES="$CONFIG_FILES gelfx32/Makefile" ;;
+  "gelf/Makefile" ) CONFIG_FILES="$CONFIG_FILES gelf/Makefile" ;;
+  "m4/Makefile" ) CONFIG_FILES="$CONFIG_FILES m4/Makefile" ;;
+  "patches/Makefile" ) CONFIG_FILES="$CONFIG_FILES patches/Makefile" ;;
+  "doc/Makefile" ) CONFIG_FILES="$CONFIG_FILES doc/Makefile" ;;
+  "testsuite/Makefile" ) CONFIG_FILES="$CONFIG_FILES testsuite/Makefile" ;;
+  "depfiles" ) CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
+  "config.h" ) CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;;
+  *) { { echo "$as_me:$LINENO: error: invalid argument: $ac_config_target" >&5
+echo "$as_me: error: invalid argument: $ac_config_target" >&2;}
+   { (exit 1); exit 1; }; };;
+  esac
+done
+
+# If the user did not use the arguments to specify the items to instantiate,
+# then the envvar interface is used.  Set only those that are not.
+# We use the long form for the default assignment because of an extremely
+# bizarre bug on SunOS 4.1.3.
+if $ac_need_defaults; then
+  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
+  test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers
+  test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands
+fi
+
+# Have a temporary directory for convenience.  Make it in the build tree
+# simply because there is no reason to put it here, and in addition,
+# creating and moving files from /tmp can sometimes cause problems.
+# Create a temporary directory, and hook for its removal unless debugging.
+$debug ||
+{
+  trap 'exit_status=$?; rm -rf $tmp && exit $exit_status' 0
+  trap '{ (exit 1); exit 1; }' 1 2 13 15
+}
+
+# Create a (secure) tmp directory for tmp files.
+
+{
+  tmp=`(umask 077 && mktemp -d -q "./confstatXXXXXX") 2>/dev/null` &&
+  test -n "$tmp" && test -d "$tmp"
+}  ||
+{
+  tmp=./confstat$$-$RANDOM
+  (umask 077 && mkdir $tmp)
+} ||
+{
+   echo "$me: cannot create a temporary directory in ." >&2
+   { (exit 1); exit 1; }
+}
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<_ACEOF
+
+#
+# CONFIG_FILES section.
+#
+
+# No need to generate the scripts if there are no CONFIG_FILES.
+# This happens for instance when ./config.status config.h
+if test -n "\$CONFIG_FILES"; then
+  # Protect against being on the right side of a sed subst in config.status.
+  sed 's/,@/@@/; s/@,/@@/; s/,;t t\$/@;t t/; /@;t t\$/s/[\\\\&,]/\\\\&/g;
+   s/@@/,@/; s/@@/@,/; s/@;t t\$/,;t t/' >\$tmp/subs.sed <<\\CEOF
+s,@SHELL@,$SHELL,;t t
+s,@PATH_SEPARATOR@,$PATH_SEPARATOR,;t t
+s,@PACKAGE_NAME@,$PACKAGE_NAME,;t t
+s,@PACKAGE_TARNAME@,$PACKAGE_TARNAME,;t t
+s,@PACKAGE_VERSION@,$PACKAGE_VERSION,;t t
+s,@PACKAGE_STRING@,$PACKAGE_STRING,;t t
+s,@PACKAGE_BUGREPORT@,$PACKAGE_BUGREPORT,;t t
+s,@exec_prefix@,$exec_prefix,;t t
+s,@prefix@,$prefix,;t t
+s,@program_transform_name@,$program_transform_name,;t t
+s,@bindir@,$bindir,;t t
+s,@sbindir@,$sbindir,;t t
+s,@libexecdir@,$libexecdir,;t t
+s,@datadir@,$datadir,;t t
+s,@sysconfdir@,$sysconfdir,;t t
+s,@sharedstatedir@,$sharedstatedir,;t t
+s,@localstatedir@,$localstatedir,;t t
+s,@libdir@,$libdir,;t t
+s,@includedir@,$includedir,;t t
+s,@oldincludedir@,$oldincludedir,;t t
+s,@infodir@,$infodir,;t t
+s,@mandir@,$mandir,;t t
+s,@build_alias@,$build_alias,;t t
+s,@host_alias@,$host_alias,;t t
+s,@target_alias@,$target_alias,;t t
+s,@DEFS@,$DEFS,;t t
+s,@ECHO_C@,$ECHO_C,;t t
+s,@ECHO_N@,$ECHO_N,;t t
+s,@ECHO_T@,$ECHO_T,;t t
+s,@LIBS@,$LIBS,;t t
+s,@build@,$build,;t t
+s,@build_cpu@,$build_cpu,;t t
+s,@build_vendor@,$build_vendor,;t t
+s,@build_os@,$build_os,;t t
+s,@host@,$host,;t t
+s,@host_cpu@,$host_cpu,;t t
+s,@host_vendor@,$host_vendor,;t t
+s,@host_os@,$host_os,;t t
+s,@INSTALL_PROGRAM@,$INSTALL_PROGRAM,;t t
+s,@INSTALL_SCRIPT@,$INSTALL_SCRIPT,;t t
+s,@INSTALL_DATA@,$INSTALL_DATA,;t t
+s,@PACKAGE@,$PACKAGE,;t t
+s,@VERSION@,$VERSION,;t t
+s,@ACLOCAL@,$ACLOCAL,;t t
+s,@AUTOCONF@,$AUTOCONF,;t t
+s,@AUTOMAKE@,$AUTOMAKE,;t t
+s,@AUTOHEADER@,$AUTOHEADER,;t t
+s,@MAKEINFO@,$MAKEINFO,;t t
+s,@AMTAR@,$AMTAR,;t t
+s,@install_sh@,$install_sh,;t t
+s,@STRIP@,$STRIP,;t t
+s,@ac_ct_STRIP@,$ac_ct_STRIP,;t t
+s,@INSTALL_STRIP_PROGRAM@,$INSTALL_STRIP_PROGRAM,;t t
+s,@AWK@,$AWK,;t t
+s,@SET_MAKE@,$SET_MAKE,;t t
+s,@CC@,$CC,;t t
+s,@CFLAGS@,$CFLAGS,;t t
+s,@LDFLAGS@,$LDFLAGS,;t t
+s,@CPPFLAGS@,$CPPFLAGS,;t t
+s,@ac_ct_CC@,$ac_ct_CC,;t t
+s,@EXEEXT@,$EXEEXT,;t t
+s,@OBJEXT@,$OBJEXT,;t t
+s,@DEPDIR@,$DEPDIR,;t t
+s,@am__include@,$am__include,;t t
+s,@am__quote@,$am__quote,;t t
+s,@AMDEP_TRUE@,$AMDEP_TRUE,;t t
+s,@AMDEP_FALSE@,$AMDEP_FALSE,;t t
+s,@AMDEPBACKSLASH@,$AMDEPBACKSLASH,;t t
+s,@CCDEPMODE@,$CCDEPMODE,;t t
+s,@CXX@,$CXX,;t t
+s,@CXXFLAGS@,$CXXFLAGS,;t t
+s,@ac_ct_CXX@,$ac_ct_CXX,;t t
+s,@CXXDEPMODE@,$CXXDEPMODE,;t t
+s,@CPP@,$CPP,;t t
+s,@EGREP@,$EGREP,;t t
+s,@LN_S@,$LN_S,;t t
+s,@ECHO@,$ECHO,;t t
+s,@AR@,$AR,;t t
+s,@ac_ct_AR@,$ac_ct_AR,;t t
+s,@RANLIB@,$RANLIB,;t t
+s,@ac_ct_RANLIB@,$ac_ct_RANLIB,;t t
+s,@CXXCPP@,$CXXCPP,;t t
+s,@F77@,$F77,;t t
+s,@FFLAGS@,$FFLAGS,;t t
+s,@ac_ct_F77@,$ac_ct_F77,;t t
+s,@LIBTOOL@,$LIBTOOL,;t t
+s,@GELFINCLUDE@,$GELFINCLUDE,;t t
+s,@LIBGELF@,$LIBGELF,;t t
+s,@LIBOBJS@,$LIBOBJS,;t t
+s,@LTLIBOBJS@,$LTLIBOBJS,;t t
+CEOF
+
+_ACEOF
+
+  cat >>$CONFIG_STATUS <<\_ACEOF
+  # Split the substitutions into bite-sized pieces for seds with
+  # small command number limits, like on Digital OSF/1 and HP-UX.
+  ac_max_sed_lines=48
+  ac_sed_frag=1 # Number of current file.
+  ac_beg=1 # First line for current file.
+  ac_end=$ac_max_sed_lines # Line after last line for current file.
+  ac_more_lines=:
+  ac_sed_cmds=
+  while $ac_more_lines; do
+    if test $ac_beg -gt 1; then
+      sed "1,${ac_beg}d; ${ac_end}q" $tmp/subs.sed >$tmp/subs.frag
+    else
+      sed "${ac_end}q" $tmp/subs.sed >$tmp/subs.frag
+    fi
+    if test ! -s $tmp/subs.frag; then
+      ac_more_lines=false
+    else
+      # The purpose of the label and of the branching condition is to
+      # speed up the sed processing (if there are no `@' at all, there
+      # is no need to browse any of the substitutions).
+      # These are the two extra sed commands mentioned above.
+      (echo ':t
+  /@[a-zA-Z_][a-zA-Z_0-9]*@/!b' && cat $tmp/subs.frag) >$tmp/subs-$ac_sed_frag.sed
+      if test -z "$ac_sed_cmds"; then
+       ac_sed_cmds="sed -f $tmp/subs-$ac_sed_frag.sed"
+      else
+       ac_sed_cmds="$ac_sed_cmds | sed -f $tmp/subs-$ac_sed_frag.sed"
+      fi
+      ac_sed_frag=`expr $ac_sed_frag + 1`
+      ac_beg=$ac_end
+      ac_end=`expr $ac_end + $ac_max_sed_lines`
+    fi
+  done
+  if test -z "$ac_sed_cmds"; then
+    ac_sed_cmds=cat
+  fi
+fi # test -n "$CONFIG_FILES"
+
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
+for ac_file in : $CONFIG_FILES; do test "x$ac_file" = x: && continue
+  # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
+  case $ac_file in
+  - | *:- | *:-:* ) # input from stdin
+        cat >$tmp/stdin
+        ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
+        ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
+  *:* ) ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
+        ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
+  * )   ac_file_in=$ac_file.in ;;
+  esac
+
+  # Compute @srcdir@, @top_srcdir@, and @INSTALL@ for subdirectories.
+  ac_dir=`(dirname "$ac_file") 2>/dev/null ||
+$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+         X"$ac_file" : 'X\(//\)[^/]' \| \
+         X"$ac_file" : 'X\(//\)$' \| \
+         X"$ac_file" : 'X\(/\)' \| \
+         .     : '\(.\)' 2>/dev/null ||
+echo X"$ac_file" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+         /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+         /^X\(\/\/\)$/{ s//\1/; q; }
+         /^X\(\/\).*/{ s//\1/; q; }
+         s/.*/./; q'`
+  { if $as_mkdir_p; then
+    mkdir -p "$ac_dir"
+  else
+    as_dir="$ac_dir"
+    as_dirs=
+    while test ! -d "$as_dir"; do
+      as_dirs="$as_dir $as_dirs"
+      as_dir=`(dirname "$as_dir") 2>/dev/null ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+         X"$as_dir" : 'X\(//\)[^/]' \| \
+         X"$as_dir" : 'X\(//\)$' \| \
+         X"$as_dir" : 'X\(/\)' \| \
+         .     : '\(.\)' 2>/dev/null ||
+echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+         /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+         /^X\(\/\/\)$/{ s//\1/; q; }
+         /^X\(\/\).*/{ s//\1/; q; }
+         s/.*/./; q'`
+    done
+    test ! -n "$as_dirs" || mkdir $as_dirs
+  fi || { { echo "$as_me:$LINENO: error: cannot create directory \"$ac_dir\"" >&5
+echo "$as_me: error: cannot create directory \"$ac_dir\"" >&2;}
+   { (exit 1); exit 1; }; }; }
+
+  ac_builddir=.
+
+if test "$ac_dir" != .; then
+  ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
+  # A "../" for each directory in $ac_dir_suffix.
+  ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,../,g'`
+else
+  ac_dir_suffix= ac_top_builddir=
+fi
+
+case $srcdir in
+  .)  # No --srcdir option.  We are building in place.
+    ac_srcdir=.
+    if test -z "$ac_top_builddir"; then
+       ac_top_srcdir=.
+    else
+       ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'`
+    fi ;;
+  [\\/]* | ?:[\\/]* )  # Absolute path.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir ;;
+  *) # Relative path.
+    ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_builddir$srcdir ;;
+esac
+# Don't blindly perform a `cd "$ac_dir"/$ac_foo && pwd` since $ac_foo can be
+# absolute.
+ac_abs_builddir=`cd "$ac_dir" && cd $ac_builddir && pwd`
+ac_abs_top_builddir=`cd "$ac_dir" && cd ${ac_top_builddir}. && pwd`
+ac_abs_srcdir=`cd "$ac_dir" && cd $ac_srcdir && pwd`
+ac_abs_top_srcdir=`cd "$ac_dir" && cd $ac_top_srcdir && pwd`
+
+
+  case $INSTALL in
+  [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
+  *) ac_INSTALL=$ac_top_builddir$INSTALL ;;
+  esac
+
+  if test x"$ac_file" != x-; then
+    { echo "$as_me:$LINENO: creating $ac_file" >&5
+echo "$as_me: creating $ac_file" >&6;}
+    rm -f "$ac_file"
+  fi
+  # Let's still pretend it is `configure' which instantiates (i.e., don't
+  # use $as_me), people would be surprised to read:
+  #    /* config.h.  Generated by config.status.  */
+  if test x"$ac_file" = x-; then
+    configure_input=
+  else
+    configure_input="$ac_file.  "
+  fi
+  configure_input=$configure_input"Generated from `echo $ac_file_in |
+                                     sed 's,.*/,,'` by configure."
+
+  # First look for the input files in the build tree, otherwise in the
+  # src tree.
+  ac_file_inputs=`IFS=:
+    for f in $ac_file_in; do
+      case $f in
+      -) echo $tmp/stdin ;;
+      [\\/$]*)
+         # Absolute (can't be DOS-style, as IFS=:)
+         test -f "$f" || { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
+echo "$as_me: error: cannot find input file: $f" >&2;}
+   { (exit 1); exit 1; }; }
+         echo $f;;
+      *) # Relative
+         if test -f "$f"; then
+           # Build tree
+           echo $f
+         elif test -f "$srcdir/$f"; then
+           # Source tree
+           echo $srcdir/$f
+         else
+           # /dev/null tree
+           { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
+echo "$as_me: error: cannot find input file: $f" >&2;}
+   { (exit 1); exit 1; }; }
+         fi;;
+      esac
+    done` || { (exit 1); exit 1; }
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF
+  sed "$ac_vpsub
+$extrasub
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
+:t
+/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
+s,@configure_input@,$configure_input,;t t
+s,@srcdir@,$ac_srcdir,;t t
+s,@abs_srcdir@,$ac_abs_srcdir,;t t
+s,@top_srcdir@,$ac_top_srcdir,;t t
+s,@abs_top_srcdir@,$ac_abs_top_srcdir,;t t
+s,@builddir@,$ac_builddir,;t t
+s,@abs_builddir@,$ac_abs_builddir,;t t
+s,@top_builddir@,$ac_top_builddir,;t t
+s,@abs_top_builddir@,$ac_abs_top_builddir,;t t
+s,@INSTALL@,$ac_INSTALL,;t t
+" $ac_file_inputs | (eval "$ac_sed_cmds") >$tmp/out
+  rm -f $tmp/stdin
+  if test x"$ac_file" != x-; then
+    mv $tmp/out $ac_file
+  else
+    cat $tmp/out
+    rm -f $tmp/out
+  fi
+
+done
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
+
+#
+# CONFIG_HEADER section.
+#
+
+# These sed commands are passed to sed as "A NAME B NAME C VALUE D", where
+# NAME is the cpp macro being defined and VALUE is the value it is being given.
+#
+# ac_d sets the value in "#define NAME VALUE" lines.
+ac_dA='s,^\([  ]*\)#\([        ]*define[       ][      ]*\)'
+ac_dB='[       ].*$,\1#\2'
+ac_dC=' '
+ac_dD=',;t'
+# ac_u turns "#undef NAME" without trailing blanks into "#define NAME VALUE".
+ac_uA='s,^\([  ]*\)#\([        ]*\)undef\([    ][      ]*\)'
+ac_uB='$,\1#\2define\3'
+ac_uC=' '
+ac_uD=',;t'
+
+for ac_file in : $CONFIG_HEADERS; do test "x$ac_file" = x: && continue
+  # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
+  case $ac_file in
+  - | *:- | *:-:* ) # input from stdin
+        cat >$tmp/stdin
+        ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
+        ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
+  *:* ) ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
+        ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
+  * )   ac_file_in=$ac_file.in ;;
+  esac
+
+  test x"$ac_file" != x- && { echo "$as_me:$LINENO: creating $ac_file" >&5
+echo "$as_me: creating $ac_file" >&6;}
+
+  # First look for the input files in the build tree, otherwise in the
+  # src tree.
+  ac_file_inputs=`IFS=:
+    for f in $ac_file_in; do
+      case $f in
+      -) echo $tmp/stdin ;;
+      [\\/$]*)
+         # Absolute (can't be DOS-style, as IFS=:)
+         test -f "$f" || { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
+echo "$as_me: error: cannot find input file: $f" >&2;}
+   { (exit 1); exit 1; }; }
+         echo $f;;
+      *) # Relative
+         if test -f "$f"; then
+           # Build tree
+           echo $f
+         elif test -f "$srcdir/$f"; then
+           # Source tree
+           echo $srcdir/$f
+         else
+           # /dev/null tree
+           { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
+echo "$as_me: error: cannot find input file: $f" >&2;}
+   { (exit 1); exit 1; }; }
+         fi;;
+      esac
+    done` || { (exit 1); exit 1; }
+  # Remove the trailing spaces.
+  sed 's/[     ]*$//' $ac_file_inputs >$tmp/in
+
+_ACEOF
+
+# Transform confdefs.h into two sed scripts, `conftest.defines' and
+# `conftest.undefs', that substitutes the proper values into
+# config.h.in to produce config.h.  The first handles `#define'
+# templates, and the second `#undef' templates.
+# And first: Protect against being on the right side of a sed subst in
+# config.status.  Protect against being in an unquoted here document
+# in config.status.
+rm -f conftest.defines conftest.undefs
+# Using a here document instead of a string reduces the quoting nightmare.
+# Putting comments in sed scripts is not portable.
+#
+# `end' is used to avoid that the second main sed command (meant for
+# 0-ary CPP macros) applies to n-ary macro definitions.
+# See the Autoconf documentation for `clear'.
+cat >confdef2sed.sed <<\_ACEOF
+s/[\\&,]/\\&/g
+s,[\\$`],\\&,g
+t clear
+: clear
+s,^[   ]*#[    ]*define[       ][      ]*\([^  (][^    (]*\)\(([^)]*)\)[       ]*\(.*\)$,${ac_dA}\1${ac_dB}\1\2${ac_dC}\3${ac_dD},gp
+t end
+s,^[   ]*#[    ]*define[       ][      ]*\([^  ][^     ]*\)[   ]*\(.*\)$,${ac_dA}\1${ac_dB}\1${ac_dC}\2${ac_dD},gp
+: end
+_ACEOF
+# If some macros were called several times there might be several times
+# the same #defines, which is useless.  Nevertheless, we may not want to
+# sort them, since we want the *last* AC-DEFINE to be honored.
+uniq confdefs.h | sed -n -f confdef2sed.sed >conftest.defines
+sed 's/ac_d/ac_u/g' conftest.defines >conftest.undefs
+rm -f confdef2sed.sed
+
+# This sed command replaces #undef with comments.  This is necessary, for
+# example, in the case of _POSIX_SOURCE, which is predefined and required
+# on some systems where configure will not decide to define it.
+cat >>conftest.undefs <<\_ACEOF
+s,^[   ]*#[    ]*undef[        ][      ]*[a-zA-Z_][a-zA-Z_0-9]*,/* & */,
+_ACEOF
+
+# Break up conftest.defines because some shells have a limit on the size
+# of here documents, and old seds have small limits too (100 cmds).
+echo '  # Handle all the #define templates only if necessary.' >>$CONFIG_STATUS
+echo '  if grep "^[    ]*#[    ]*define" $tmp/in >/dev/null; then' >>$CONFIG_STATUS
+echo '  # If there are no defines, we may have an empty if/fi' >>$CONFIG_STATUS
+echo '  :' >>$CONFIG_STATUS
+rm -f conftest.tail
+while grep . conftest.defines >/dev/null
+do
+  # Write a limited-size here document to $tmp/defines.sed.
+  echo '  cat >$tmp/defines.sed <<CEOF' >>$CONFIG_STATUS
+  # Speed up: don't consider the non `#define' lines.
+  echo '/^[    ]*#[    ]*define/!b' >>$CONFIG_STATUS
+  # Work around the forget-to-reset-the-flag bug.
+  echo 't clr' >>$CONFIG_STATUS
+  echo ': clr' >>$CONFIG_STATUS
+  sed ${ac_max_here_lines}q conftest.defines >>$CONFIG_STATUS
+  echo 'CEOF
+  sed -f $tmp/defines.sed $tmp/in >$tmp/out
+  rm -f $tmp/in
+  mv $tmp/out $tmp/in
+' >>$CONFIG_STATUS
+  sed 1,${ac_max_here_lines}d conftest.defines >conftest.tail
+  rm -f conftest.defines
+  mv conftest.tail conftest.defines
+done
+rm -f conftest.defines
+echo '  fi # grep' >>$CONFIG_STATUS
+echo >>$CONFIG_STATUS
+
+# Break up conftest.undefs because some shells have a limit on the size
+# of here documents, and old seds have small limits too (100 cmds).
+echo '  # Handle all the #undef templates' >>$CONFIG_STATUS
+rm -f conftest.tail
+while grep . conftest.undefs >/dev/null
+do
+  # Write a limited-size here document to $tmp/undefs.sed.
+  echo '  cat >$tmp/undefs.sed <<CEOF' >>$CONFIG_STATUS
+  # Speed up: don't consider the non `#undef'
+  echo '/^[    ]*#[    ]*undef/!b' >>$CONFIG_STATUS
+  # Work around the forget-to-reset-the-flag bug.
+  echo 't clr' >>$CONFIG_STATUS
+  echo ': clr' >>$CONFIG_STATUS
+  sed ${ac_max_here_lines}q conftest.undefs >>$CONFIG_STATUS
+  echo 'CEOF
+  sed -f $tmp/undefs.sed $tmp/in >$tmp/out
+  rm -f $tmp/in
+  mv $tmp/out $tmp/in
+' >>$CONFIG_STATUS
+  sed 1,${ac_max_here_lines}d conftest.undefs >conftest.tail
+  rm -f conftest.undefs
+  mv conftest.tail conftest.undefs
+done
+rm -f conftest.undefs
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+  # Let's still pretend it is `configure' which instantiates (i.e., don't
+  # use $as_me), people would be surprised to read:
+  #    /* config.h.  Generated by config.status.  */
+  if test x"$ac_file" = x-; then
+    echo "/* Generated by configure.  */" >$tmp/config.h
+  else
+    echo "/* $ac_file.  Generated by configure.  */" >$tmp/config.h
+  fi
+  cat $tmp/in >>$tmp/config.h
+  rm -f $tmp/in
+  if test x"$ac_file" != x-; then
+    if diff $ac_file $tmp/config.h >/dev/null 2>&1; then
+      { echo "$as_me:$LINENO: $ac_file is unchanged" >&5
+echo "$as_me: $ac_file is unchanged" >&6;}
+    else
+      ac_dir=`(dirname "$ac_file") 2>/dev/null ||
+$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+         X"$ac_file" : 'X\(//\)[^/]' \| \
+         X"$ac_file" : 'X\(//\)$' \| \
+         X"$ac_file" : 'X\(/\)' \| \
+         .     : '\(.\)' 2>/dev/null ||
+echo X"$ac_file" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+         /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+         /^X\(\/\/\)$/{ s//\1/; q; }
+         /^X\(\/\).*/{ s//\1/; q; }
+         s/.*/./; q'`
+      { if $as_mkdir_p; then
+    mkdir -p "$ac_dir"
+  else
+    as_dir="$ac_dir"
+    as_dirs=
+    while test ! -d "$as_dir"; do
+      as_dirs="$as_dir $as_dirs"
+      as_dir=`(dirname "$as_dir") 2>/dev/null ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+         X"$as_dir" : 'X\(//\)[^/]' \| \
+         X"$as_dir" : 'X\(//\)$' \| \
+         X"$as_dir" : 'X\(/\)' \| \
+         .     : '\(.\)' 2>/dev/null ||
+echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+         /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+         /^X\(\/\/\)$/{ s//\1/; q; }
+         /^X\(\/\).*/{ s//\1/; q; }
+         s/.*/./; q'`
+    done
+    test ! -n "$as_dirs" || mkdir $as_dirs
+  fi || { { echo "$as_me:$LINENO: error: cannot create directory \"$ac_dir\"" >&5
+echo "$as_me: error: cannot create directory \"$ac_dir\"" >&2;}
+   { (exit 1); exit 1; }; }; }
+
+      rm -f $ac_file
+      mv $tmp/config.h $ac_file
+    fi
+  else
+    cat $tmp/config.h
+    rm -f $tmp/config.h
+  fi
+  # Run the commands associated with the file.
+  case $ac_file in
+    config.h ) # update the timestamp
+echo 'timestamp for config.h' >"./stamp-h1"
+ ;;
+  esac
+done
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
+
+#
+# CONFIG_COMMANDS section.
+#
+for ac_file in : $CONFIG_COMMANDS; do test "x$ac_file" = x: && continue
+  ac_dest=`echo "$ac_file" | sed 's,:.*,,'`
+  ac_source=`echo "$ac_file" | sed 's,[^:]*:,,'`
+  ac_dir=`(dirname "$ac_dest") 2>/dev/null ||
+$as_expr X"$ac_dest" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+         X"$ac_dest" : 'X\(//\)[^/]' \| \
+         X"$ac_dest" : 'X\(//\)$' \| \
+         X"$ac_dest" : 'X\(/\)' \| \
+         .     : '\(.\)' 2>/dev/null ||
+echo X"$ac_dest" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+         /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+         /^X\(\/\/\)$/{ s//\1/; q; }
+         /^X\(\/\).*/{ s//\1/; q; }
+         s/.*/./; q'`
+  ac_builddir=.
+
+if test "$ac_dir" != .; then
+  ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
+  # A "../" for each directory in $ac_dir_suffix.
+  ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,../,g'`
+else
+  ac_dir_suffix= ac_top_builddir=
+fi
+
+case $srcdir in
+  .)  # No --srcdir option.  We are building in place.
+    ac_srcdir=.
+    if test -z "$ac_top_builddir"; then
+       ac_top_srcdir=.
+    else
+       ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'`
+    fi ;;
+  [\\/]* | ?:[\\/]* )  # Absolute path.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir ;;
+  *) # Relative path.
+    ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_builddir$srcdir ;;
+esac
+# Don't blindly perform a `cd "$ac_dir"/$ac_foo && pwd` since $ac_foo can be
+# absolute.
+ac_abs_builddir=`cd "$ac_dir" && cd $ac_builddir && pwd`
+ac_abs_top_builddir=`cd "$ac_dir" && cd ${ac_top_builddir}. && pwd`
+ac_abs_srcdir=`cd "$ac_dir" && cd $ac_srcdir && pwd`
+ac_abs_top_srcdir=`cd "$ac_dir" && cd $ac_top_srcdir && pwd`
+
+
+  { echo "$as_me:$LINENO: executing $ac_dest commands" >&5
+echo "$as_me: executing $ac_dest commands" >&6;}
+  case $ac_dest in
+    depfiles ) test x"$AMDEP_TRUE" != x"" || for mf in $CONFIG_FILES; do
+  # Strip MF so we end up with the name of the file.
+  mf=`echo "$mf" | sed -e 's/:.*$//'`
+  # Check whether this is an Automake generated Makefile or not.
+  # We used to match only the files named `Makefile.in', but
+  # some people rename them; so instead we look at the file content.
+  # Grep'ing the first line is not enough: some people post-process
+  # each Makefile.in and add a new line on top of each file to say so.
+  # So let's grep whole file.
+  if grep '^#.*generated by automake' $mf > /dev/null 2>&1; then
+    dirpart=`(dirname "$mf") 2>/dev/null ||
+$as_expr X"$mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+         X"$mf" : 'X\(//\)[^/]' \| \
+         X"$mf" : 'X\(//\)$' \| \
+         X"$mf" : 'X\(/\)' \| \
+         .     : '\(.\)' 2>/dev/null ||
+echo X"$mf" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+         /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+         /^X\(\/\/\)$/{ s//\1/; q; }
+         /^X\(\/\).*/{ s//\1/; q; }
+         s/.*/./; q'`
+  else
+    continue
+  fi
+  grep '^DEP_FILES *= *[^ #]' < "$mf" > /dev/null || continue
+  # Extract the definition of DEP_FILES from the Makefile without
+  # running `make'.
+  DEPDIR=`sed -n -e '/^DEPDIR = / s///p' < "$mf"`
+  test -z "$DEPDIR" && continue
+  # When using ansi2knr, U may be empty or an underscore; expand it
+  U=`sed -n -e '/^U = / s///p' < "$mf"`
+  test -d "$dirpart/$DEPDIR" || mkdir "$dirpart/$DEPDIR"
+  # We invoke sed twice because it is the simplest approach to
+  # changing $(DEPDIR) to its actual value in the expansion.
+  for file in `sed -n -e '
+    /^DEP_FILES = .*\\\\$/ {
+      s/^DEP_FILES = //
+      :loop
+       s/\\\\$//
+       p
+       n
+       /\\\\$/ b loop
+      p
+    }
+    /^DEP_FILES = / s/^DEP_FILES = //p' < "$mf" | \
+       sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g' -e 's/\$U/'"$U"'/g'`; do
+    # Make sure the directory exists.
+    test -f "$dirpart/$file" && continue
+    fdir=`(dirname "$file") 2>/dev/null ||
+$as_expr X"$file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+         X"$file" : 'X\(//\)[^/]' \| \
+         X"$file" : 'X\(//\)$' \| \
+         X"$file" : 'X\(/\)' \| \
+         .     : '\(.\)' 2>/dev/null ||
+echo X"$file" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+         /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+         /^X\(\/\/\)$/{ s//\1/; q; }
+         /^X\(\/\).*/{ s//\1/; q; }
+         s/.*/./; q'`
+    { if $as_mkdir_p; then
+    mkdir -p $dirpart/$fdir
+  else
+    as_dir=$dirpart/$fdir
+    as_dirs=
+    while test ! -d "$as_dir"; do
+      as_dirs="$as_dir $as_dirs"
+      as_dir=`(dirname "$as_dir") 2>/dev/null ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+         X"$as_dir" : 'X\(//\)[^/]' \| \
+         X"$as_dir" : 'X\(//\)$' \| \
+         X"$as_dir" : 'X\(/\)' \| \
+         .     : '\(.\)' 2>/dev/null ||
+echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+         /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+         /^X\(\/\/\)$/{ s//\1/; q; }
+         /^X\(\/\).*/{ s//\1/; q; }
+         s/.*/./; q'`
+    done
+    test ! -n "$as_dirs" || mkdir $as_dirs
+  fi || { { echo "$as_me:$LINENO: error: cannot create directory $dirpart/$fdir" >&5
+echo "$as_me: error: cannot create directory $dirpart/$fdir" >&2;}
+   { (exit 1); exit 1; }; }; }
+
+    # echo "creating $dirpart/$file"
+    echo '# dummy' > "$dirpart/$file"
+  done
+done
+ ;;
+  esac
+done
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+
+{ (exit 0); exit 0; }
+_ACEOF
+chmod +x $CONFIG_STATUS
+ac_clean_files=$ac_clean_files_save
+
+
+# configure is writing to config.log, and then calls config.status.
+# config.status does its own redirection, appending to config.log.
+# Unfortunately, on DOS this fails, as config.log is still kept open
+# by configure, so config.status won't be able to write to it; its
+# output is simply discarded.  So we exec the FD to /dev/null,
+# effectively closing config.log, so it can be properly (re)opened and
+# appended to by config.status.  When coming back to configure, we
+# need to make the FD available again.
+if test "$no_create" != yes; then
+  ac_cs_success=:
+  ac_config_status_args=
+  test "$silent" = yes &&
+    ac_config_status_args="$ac_config_status_args --quiet"
+  exec 5>/dev/null
+  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
+  exec 5>>config.log
+  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
+  # would make configure fail if this is the last instruction.
+  $ac_cs_success || { (exit 1); exit 1; }
+fi
+
diff --git a/configure.in b/configure.in
new file mode 100644 (file)
index 0000000..396f3ac
--- /dev/null
@@ -0,0 +1,93 @@
+dnl Process this file with autoconf to produce a configure script. -*-m4-*-
+AC_INIT(src/prelink.c)
+AM_CONFIG_HEADER(config.h)
+AC_PREREQ(2.13)                        dnl Minimum Autoconf version required.
+AC_CANONICAL_HOST
+
+AM_INIT_AUTOMAKE([prelink], [0.0])
+
+ALL_LINGUAS=
+
+AC_PROG_CC
+AC_PROG_CXX
+AC_PROG_CPP
+AC_PROG_GCC_TRADITIONAL
+AM_PROG_LIBTOOL
+
+AC_ARG_ENABLE(64-bit,
+[  --disable-64-bit        only support 32-bit ELF],
+[case "${enableval}" in
+  yes)  want64=true  ;;
+  no)   want64=false ;;
+  *)    AC_MSG_ERROR(bad value ${enableval} for 64-bit option) ;;
+esac],[want64=true])dnl
+
+AC_CHECK_HEADER(libelf.h,,[
+  if test -f /usr/include/elfutils/libelf.h; then
+    CPPFLAGS="$CPPFLAGS -I /usr/include/elfutils"
+  elif test -f /usr/local/include/elfutils/libelf.h; then
+    CPPFLAGS="$CPPFLAGS -I /usr/local/include/elfutils"
+  elif test -f /usr/include/libelf/libelf.h; then
+    CPPFLAGS="$CPPFLAGS -I /usr/include/libelf"
+  elif test -f /usr/local/include/libelf/libelf.h; then
+    CPPFLAGS="$CPPFLAGS -I /usr/local/include/libelf"
+  else
+    AC_MSG_ERROR(libelf.h not found)
+  fi])
+LIBGELF=""
+if test "$want64"x = falsex; then
+  GELFINCLUDE='-I$(top_srcdir)/gelfx32'
+else
+  GELFINCLUDE='-I$(top_srcdir)/gelfx'
+  AC_CHECK_HEADER(gelf.h,,[
+    GELFINCLUDE="$GELFINCLUDE "'-I$(top_srcdir)/gelf'
+    LIBGELF='../gelf/libgelf.la'
+  ])
+fi
+AC_CHECK_LIB(elf,elf_begin)
+AC_SUBST(GELFINCLUDE)
+AC_SUBST(LIBGELF)
+
+dnl Now check what kind of libelf we will link against
+AC_CHECK_FUNC(gelf_getvernaux,[newbu=true],[newbu=false])
+
+dnl Check if FTW_ACTIONRETVAL is supported
+AC_CACHE_CHECK([whether FTW_ACTIONRETVAL is supported],
+              [ac_cv_ftw_actionretval], [dnl
+  AC_EGREP_CPP([FTW supports ACTIONRETVAL], [
+  #ifndef _GNU_SOURCE
+  #define _GNU_SOURCE 1
+  #endif
+  #include <ftw.h>
+  #ifdef FTW_ACTIONRETVAL
+  FTW supports ACTIONRETVAL
+  #endif
+  ], ac_cv_ftw_actionretval=yes, ac_cv_ftw_actionretval=no)])
+if test "x$ac_cv_ftw_actionretval" = xyes; then
+  AC_DEFINE(HAVE_FTW_ACTIONRETVAL, 1,
+           [Define if FTW_ACTIONRETVAL is supported.])
+fi
+
+dnl SELinux checks
+AC_CHECK_LIB(selinux,is_selinux_enabled)
+AC_CHECK_HEADERS(selinux/selinux.h)
+
+dnl This test must come as early as possible after the compiler configuration
+dnl tests, because the choice of the file model can (in principle) affect
+dnl whether functions and headers are available, whether they work, etc.
+if test x"$newbu" = xtrue; then
+  # Don't use LFS for libelf-0.x
+  AC_SYS_LARGEFILE
+fi
+
+AC_LIBELF_SXWORD
+
+AC_OUTPUT([Makefile
+          src/Makefile
+          gelfx/Makefile
+          gelfx32/Makefile
+          gelf/Makefile
+          m4/Makefile
+          patches/Makefile
+          doc/Makefile
+          testsuite/Makefile])
diff --git a/debian/NEWS b/debian/NEWS
new file mode 100644 (file)
index 0000000..a38665e
--- /dev/null
@@ -0,0 +1,14 @@
+prelink (0.0.20030902-1) unstable; urgency=low
+
+  * Added /etc/cron.daily/prelink. When enabled in /etc/default/prelink,
+    this script will prelink the system every night.
+
+ -- Marco d'Itri <md@linux.it>  Thu, 11 Sep 2003 19:15:09 +0200
+
+prelink (0.0.20030902-5) unstable; urgency=low
+
+  * Removed TLS tests because glibc does not yet support this for the x86
+    architecture. See Bug #211610 for more information. 
+
+ -- Andrés Roldán <aroldan@fluidsignal.com>  Fri, 19 Sep 2003 16:54:45 +0000
+
diff --git a/debian/README.Debian b/debian/README.Debian
new file mode 100644 (file)
index 0000000..ef473d8
--- /dev/null
@@ -0,0 +1,43 @@
+Usage
+~~~~~
+This program will not be executed automatically. You will have to run it
+every time a new program is installed in the system or configure
+/etc/default/prelink to have it run every night from crontab.
+
+Prelink all executables and libraries on the system (this will take a few
+minutes and report errors for old or broken binaries which cannot be
+prelinked):
+# prelink --all --conserve-memory --random
+
+Revert everything:
+# prelink --all --undo
+
+Removing the package will not automatically undo prelinking.
+
+Kernel requirements
+~~~~~~~~~~~~~~~~~~~
+BEWARE: prelinked binaries will probably not work on kernels <= 2.4.10.
+Do not report bugs if you are not running a modern kernel.
+
+prelink and start-stop-daemon
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+When stopping a daemon, /sbin/start-stop-daemon may compare the on disk
+executable with the one loaded in memory. After prelink has run they will
+differ, so you have to be careful and check you are still able to cleanly
+shut down your system. The safest option is to run prelink in single user
+mode. Please see bug #179806 for details.
+
+SECURITY
+~~~~~~~~
+This program does modify executables and libraries. These changes will
+be reported by programs like checksecurity(8) and tripwire(8).
+
+Another thing to have in mind is that prelink will damage your binaries
+if you are low on disk space. The recommended disk space is at least 50M
+because prelink adds some sections and segments sometimes to some binaries
+and shared libraries and it may fulfill your hard disk. See Bug#223921.
+
+Some interesting mailing lists threads
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+http://sources.redhat.com/ml/libc-alpha/2001-06/msg00113.html
+http://gcc.gnu.org/ml/gcc/2001-05/msg01670.html
diff --git a/debian/changelog b/debian/changelog
new file mode 100644 (file)
index 0000000..b78747e
--- /dev/null
@@ -0,0 +1,454 @@
+prelink (0.0.20100106-0slp2+s2) unstable; urgency=low
+
+  * Don't install Debian wrapper for prelink command.
+  * Fix dynamic linker path for armel.
+  * Don't install cronjob and its configuration file.
+  * Include non-standard SLP directories in prelink.conf.
+  * Drop init patch from Debian, we don't want init to be re-executed after prelink.
+
+ -- Rafal Krypa <r.krypa@samsung.com>  Wed, 13 Apr 2011 16:07:31 +0200
+
+prelink (0.0.20100106-0slp2+s1) unstable; urgency=low
+
+  * New upstream release.
+  * Drop libselinux1-dev build dependency.
+  * Drop libpopt-dev build dependency.
+  * Set myself as SLP maintainer.
+
+ -- Rafal Krypa <r.krypa@samsung.com>  Fri, 28 Jan 2011 18:27:24 +0100
+
+prelink (0.0.20090925-1) unstable; urgency=low
+
+  * New upstream release.
+  * debian/{control,rules}:
+    - Split execstack into a separate binary package to avoid dragging 
+      the full prelink utility/cron stack into main. (Closes: #543599)
+      Thanks to Kees Cook <kees@debian.org>
+  * debian/control:
+    - Prelink is now supposed to build on any architecture. (Closes: #497328)
+  * debian/patches/timestamp.dpatch
+    - Adds -T options to add timestamp on every error output. (Closes: #367320)
+  * debian/prelink.sh:
+    - Verifies if the programm is being redirected or attached to a TTY.
+      (Closes: #449383)
+
+
+ -- Andrés Roldán <aroldan@debian.org>  Mon, 19 Oct 2009 14:07:56 +0000
+
+prelink (0.0.20090311-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Andrés Roldán <aroldan@debian.org>  Tue, 14 Apr 2009 14:15:26 +0000
+
+prelink (0.0.20071009-1) unstable; urgency=low
+
+  * New upstream release.
+  * debian/patches/prelink.8.dpatch:
+    - Removed. Already applied by upstream.
+
+ -- Andrés Roldán <aroldan@debian.org>  Sat, 13 Oct 2007 02:40:10 +0000
+
+prelink (0.0.20061201-1) unstable; urgency=low
+
+  * New upstream version.
+
+ -- Andrés Roldán <aroldan@debian.org>  Mon,  4 Dec 2006 16:10:40 +0000
+
+prelink (0.0.20061027-1) unstable; urgency=low
+
+  * New upstream version.
+  * debian/patches/cache.dpatch:
+    - Removed. Upstream already applied it.
+
+ -- Andrés Roldán <aroldan@debian.org>  Fri, 10 Nov 2006 20:46:16 +0000
+
+prelink (0.0.20060712-3) unstable; urgency=low
+
+  * debian/prelink.sh:
+    - Added LC_ALL='C' line to avoid annoying messages with coreutils >= 6.0
+
+ -- Andrés Roldán <aroldan@debian.org>  Thu, 19 Oct 2006 13:39:40 +0000
+
+prelink (0.0.20060712-2) unstable; urgency=low
+
+  * debian/patches/cache.dpatch:
+    - Solves a crash when sorting the cache file. (Closes: #379366) 
+
+ -- Andrés Roldán <aroldan@debian.org>  Tue, 15 Aug 2006 23:38:08 +0000
+
+prelink (0.0.20060712-1) unstable; urgency=low
+
+  * New upstream version.
+  * debian/prelink.cron-daily:
+    - Uses Debian package database instead of Redhat. (Closes: #338183)
+  * debian/prelink.sh:
+    - Don't exit with 0 code if prelink was aborted by lack of disk space.
+      (Closes: #366320)
+  * debian/patches/prelink.8.dpatch:
+    - Fixed typos in prelink manpage. (Closes: #337187)
+
+ -- Andrés Roldán <aroldan@debian.org>  Mon, 17 Jul 2006 13:46:50 +0000
+
+prelink (0.0.20060522-1) unstable; urgency=low
+
+  * New upstream release.
+  * debian/patches/fsync.dpatch:
+    - Patch to ensure writing the data on the disk when a file is renamed.
+      (Closes: #352926) 
+
+ -- Andrés Roldán <aroldan@debian.org>  Wed, 24 May 2006 15:22:16 +0000
+
+prelink (0.0.20050901-1) unstable; urgency=low
+
+  * New upstream version.
+  * Standards-Version is now 3.6.2. 
+
+ -- Andrés Roldán <aroldan@debian.org>  Wed, 21 Sep 2005 14:25:11 +0000
+
+prelink (0.0.20050610-1) unstable; urgency=low
+
+  * New upstream release.
+  * debian/prelink.cron.daily:
+    - Don't run prelink with -v option as this gives sensible information of
+      the memory of the binaries on the system. Patch taken from Ubuntu.
+      Thanks to Martin Pitt <martin.pitt@canonical.com>. (Closes: #314604)
+  * debian/control:
+    - Adds ppc64 support. (Closes: #301097)
+
+ -- Andrés Roldán <aroldan@debian.org>  Fri, 17 Jun 2005 16:11:01 +0000
+
+prelink (0.0.20050314-1) unstable; urgency=low
+
+  * New upstream version.
+  * debian/prelink.conf:
+    - Valgrind can be now prelinked.
+  * debian/prelink.spec:
+    - Updated.
+
+ -- Andrés Roldán <aroldan@debian.org>  Mon,  4 Apr 2005 14:56:47 +0000
+
+prelink (0.0.20050207-2) unstable; urgency=low
+
+  * debian/prelink.sh:
+    - Added check for existance of directories supposed to be prelinked.
+      (Closes: #288951, #288952)
+
+ -- Andrés Roldán <aroldan@debian.org>  Thu, 17 Feb 2005 09:09:01 +0000 
+
+prelink (0.0.20050207-1) unstable; urgency=low
+
+  * New upstream release.
+  * debian/prelink.cron.daily:
+    - s|^#!/bin/sh|#!/bin/bash. (Closes: #284706)
+  * debian/copyright:
+    - Put the actual copyright of the package. (Closes: #290217)
+  * debian/prelink.spec:
+    - Updated.
+
+ -- Andrés Roldán <aroldan@debian.org>  Fri, 11 Feb 2005 17:35:45 +0000
+
+prelink (0.0.20041123-1) unstable; urgency=medium
+
+  * New upstream release.
+  * debian/prelink.{cron.daily,defaults,spec}:
+    - Updated from upstream.
+  * debian/changelog: Reencoded to UTF-8. 
+
+ -- Andrés Roldán <aroldan@debian.org>  Fri,  3 Dec 2004 14:24:04 +0000
+
+prelink (0.0.20041012-2) unstable; urgency=high
+
+  * Gentoo patch that executes /sbin/init upon a change made by prelink. It
+    grants that filesystems are umounted on shutdown/reboot. Thanks to Sindre
+    AamÃ¥s for the information. (Closes: #281409)
+
+ -- Andrés Roldán <aroldan@debian.org>  Tue, 16 Nov 2004 00:44:25 +0000
+
+prelink (0.0.20041012-1) unstable; urgency=low
+
+  * New upstream release.
+  * debian/prelink.sh:
+    - Changed interpreter from /bin/sh to /bin/bash due to a bashism in 
+      'read' command.
+
+ -- Andrés Roldán <aroldan@debian.org>  Wed, 13 Oct 2004 18:27:29 +0000
+
+prelink (0.0.20041002-2) unstable; urgency=high
+
+  * debian/patches/00list.alpha:
+    - Removed. Solves FTBFS bug on alpha.
+
+ -- Andrés Roldán <aroldan@debian.org>  Fri,  8 Oct 2004 17:17:15 +0000
+
+prelink (0.0.20041002-1) unstable; urgency=low
+
+  * New upstream version.
+  * debian/prelink.conf:
+    - Added some blacklist extensions now supported by this version.
+  * debian/patches/00list:
+    - Commented out ts.dpatch.
+  * debian/patches/typo.dpatch:
+    - Removed as it's already onto the upstream source.
+
+ -- Andrés Roldán <aroldan@debian.org>  Mon,  4 Oct 2004 16:39:23 +0000
+
+prelink (0.0.20040908-1) unstable; urgency=low
+
+  * New upstream release.
+  * debian/control:
+    - Removed again sparc from Architecture list.
+  * debian/prelink.sh:
+    - Added timeout to prelink wrapper to avoid hanging up when prompting
+      whether to prelink or not. (closes: #233143)
+  * debian/patches/typo.dpatch:
+    - Changes minor typo. (closes: #265550)
+  * debian/patches/md5sha.dpatch:
+    - Changes confusing reference to --md5 and --sha options. 
+      (closes: #274146)
+
+ -- Andrés Roldán <aroldan@debian.org>  Fri,  1 Oct 2004 14:45:16 +0000
+
+prelink (0.0.20040520-3) unstable; urgency=medium
+
+  * Removed test phase. It crashes build on some archs in a innecessary way. I
+    won't however add any arch I want unless build success had been reported.
+    (closes: #252968)
+  * Urgency set medium to make this change reach sarge soon. 
+
+ -- Andrés Roldán <aroldan@debian.org>  Thu, 24 Jun 2004 14:56:30 +0000
+
+prelink (0.0.20040520-2) unstable; urgency=low
+
+  * Removed some tests on alpha.
+  * Added amd64 to the architecture list. (closes: #248851)
+
+ -- Andrés Roldán <aroldan@debian.org>  Thu,  8 Apr 2004 22:50:22 +0000
+
+prelink (0.0.20040520-1) unstable; urgency=low
+
+  * New upstream version.
+  * Compiled against libelfg0 0.85.
+  * debian/prelink.sh: Added -P option to df. (closes: #244623)
+
+ -- Andrés Roldán <aroldan@debian.org>  Thu,  8 Apr 2004 22:50:22 +0000
+
+prelink (0.0.20040317-1) unstable; urgency=low
+
+  * New upstream version.
+  * debian/prelink.cron-daily: Updated according the new upstream version.
+  * debian/prelink.conf: Updated. Added some blacklist directories including
+    valgrind's. (closes: #241193)
+  * debian/prelink.sh: Updated. Many many thanks to Xavier Hienne
+    <xhienne@solunix.fr>.
+
+ -- Andrés Roldán <aroldan@debian.org>  Thu,  8 Apr 2004 22:50:22 +0000
+
+prelink (0.0.20040304-1) unstable; urgency=low
+
+  * New upstream version.
+    - Added prelink PDF documentation.
+  * debian/copyright: Updated. Upstream URL has changed.
+  * debian/prelink.default: Updated comments.
+  * debian/control: Updated Build-Depends due to FTBFS on alpha.
+  * debian/prelink.sh: Trivial comment update.
+  * debian/rules: Add prelink.pdf to documentation. 
+
+ -- Andrés Roldán <aroldan@debian.org>  Fri,  5 Mar 2004 23:13:36 -0500
+
+prelink (0.0.20040216-1) unstable; urgency=low
+
+  * New upstream version. 
+  * Improved prelink wrapper script. Now it only warn for partitions
+    potentially prelinked. (closes: #233143, #232828, #234175)
+  * Now build-depend on libc6-dev (>> 2.3.1). (closes: #211066)
+  * Removed reloc2.sh test for all archs because it fails when it's built
+    with optimizations. (closes: #233197)
+
+ -- Andrés Roldán <aroldan@debian.org>  Mon, 23 Feb 2004 14:13:09 +0000
+
+prelink (0.0.20040129-4) unstable; urgency=low
+
+  * Removed reloc2.sh test for alpha due to FTBFS bug.
+
+ -- Andrés Roldán <aroldan@debian.org>  Sat, 14 Feb 2004 17:55:24 +0000
+
+prelink (0.0.20040129-3) unstable; urgency=low
+
+  * Added prelink.sh wrapper wich will check the disk space and show a
+    warning when it detects low disk space on some partition.
+
+ -- Andrés Roldán <aroldan@debian.org>  Thu, 12 Feb 2004 03:17:29 +0000
+
+prelink (0.0.20040129-2) unstable; urgency=low
+
+  * Ouch. Forgot to upgrade the cronfile. This will really fix #231007. 
+
+ -- Andrés Roldán <aroldan@debian.org>  Thu, 12 Feb 2004 00:22:26 +0000
+
+prelink (0.0.20040129-1) unstable; urgency=low
+
+  * New upstream version (from prelink-0.3.0-20).
+  * Now the default action on the cron script is to do nothing unless it is
+    specifically written on /etc/default/prelink. (closes: #231007)
+  * Documented the prelink problem when you have low disk space.
+    (closes: #223921, #226136)
+  * Removed layout.c.dpatch. (closes: #228453)
+  * Removed sparc from arch list. It definetly won't work again. 
+
+ -- Andrés Roldán <aroldan@debian.org>  Thu, 12 Feb 2004 00:01:18 +0000
+
+prelink (0.0.20040115-1) unstable; urgency=low
+
+  * New upstream version (from prelink-0.3.0-18). 
+
+ -- Andrés Roldán <aroldan@debian.org>  Tue, 27 Jan 2004 00:00:45 +0000
+
+prelink (0.0.20031209-1) unstable; urgency=low
+
+  * New upstream release (from prelink-0.3.0-17).
+    - Added SELinux support.
+    - Add Build-Depends on libselinux1-dev.
+    - Add black list support (--black-list option).
+
+ -- Andrés Roldán <aroldan@debian.org>  Tue, 30 Dec 2003 19:55:27 +0000
+
+prelink (0.0.20031029-3) unstable; urgency=low
+
+  * Linked again with libelfg0-dev to support prelink for sparc.
+  * Added sparc again to Architecture list. 
+
+ -- Andrés Roldán <aroldan@debian.org>  Wed, 19 Nov 2003 00:35:39 +0000
+
+prelink (0.0.20031029-2) unstable; urgency=low
+
+  * Built with newer libc6.
+  * Added again TLS tests (Yeah! we have TLS on sid!).
+  * Removed quick1 test.
+
+ -- Andrés Roldán <aroldan@debian.org>  Fri, 31 Oct 2003 20:31:39 +0000
+
+prelink (0.0.20031029-1) unstable; urgency=low
+
+  * New upstream version (from prelink-0.3.0-13.src.rpm).
+    - Added execstack(8) program, a tool which sets, clears, or queries
+      executable stack flag of ELF binaries and shared libraries.
+
+ -- Andrés Roldán <aroldan@debian.org>  Wed, 29 Oct 2003 23:54:44 +0000
+
+prelink (0.0.20031027-1) unstable; urgency=low
+
+  * Yes, yet another new upstream version (from prelink-0.3.0-11.src.rpm).
+  * Updated debian/prelink.cron.daily.
+
+ -- Andrés Roldán <aroldan@debian.org>  Tue, 28 Oct 2003 19:17:50 +0000
+
+prelink (0.0.20031024-1) unstable; urgency=low
+
+  * New upstream version (from prelink-0.3.0-10.src.rpm).
+  * Removed prelink.spec patch. That file was put on debian/ directory.
+
+ -- Andrés Roldán <aroldan@debian.org>  Tue, 28 Oct 2003 15:53:14 +0000
+
+prelink (0.0.20031012-1) unstable; urgency=low
+
+  * New upstream release (from prelink-0.3.0-9.src.rpm). (closes: #216076)
+    - Updated prelink.cron.daily.
+    - Updated prelink.spec patch.
+    - Removed dso.c patch.
+  * Updated copyright.
+
+ -- Andrés Roldán <aroldan@debian.org>  Sun, 26 Oct 2003 16:43:22 +0000
+
+prelink (0.0.20030902-7) unstable; urgency=low
+
+  * Removed dependency on libelfg0. Will prepare a NMU for libelfg0 to
+    accomplish that. (closes: #215527)
+
+ -- Andrés Roldán <aroldan@debian.org>  Mon, 13 Oct 2003 17:42:04 +0000
+
+prelink (0.0.20030902-6) unstable; urgency=low
+
+  * Changed maintainer's e-mail.
+  * Stop supporting prelink on sparc.
+  * Conflicts with libelfg0, no matter what version.
+
+ -- Andrés Roldán <aroldan@debian.org>  Sat, 11 Oct 2003 19:44:17 +0000
+
+prelink (0.0.20030902-5) unstable; urgency=low
+
+  * Changed "source" by "." on debian/prelink.cron.daily.
+    (closes: #211487)
+  * Removed TLS tests because glibc does not yet support this. See 
+    Bug #211610 for more information. (closes: #211048)
+  * Removed hack from Marco d'Itri that refused to compile undosyslibs test.
+
+ -- Andrés Roldán <aroldan@fluidsignal.com>  Fri, 19 Sep 2003 17:14:05 +0000
+
+prelink (0.0.20030902-4) unstable; urgency=low
+
+  * Fixed the "oh, you're so stupid" changelog.
+  * Now build depends on dpatch.
+  * Bumped Standards-Version to 3.6.1.
+
+ -- Andrés Roldán <aroldan@fluidsignal.com>  Tue, 16 Sep 2003 23:58:56 +0000
+
+prelink (0.0.20030902-3) unstable; urgency=low
+
+  * Changed comment in /etc/default/prelink. (closes: #210782)
+  * Compiled with libelf1-dev (from elfutils) since it is the library
+    supported by upstream. Removed build-depend on libelfg0-dev.
+
+ -- Andrés Roldán <aroldan@fluidsignal.com>  Tue, 16 Sep 2003 14:31:10 +0000
+
+prelink (0.0.20030902-2) unstable; urgency=low
+
+  * New maintainer.
+  * Fixed path on /etc/cron.daily/prelink. (closes: #210691)
+
+ -- Andrés Roldán <aroldan@fluidsignal.com>  Mon, 15 Sep 2003 19:24:59 +0000
+
+prelink (0.0.20030902-1) unstable; urgency=low
+
+  * New upstream release (from prelink-0.3.0-5.src.rpm).
+  * Added /etc/cron.daily/prelink from the SRPM.
+  * Enabled again the test reloc11.sh.
+
+ -- Marco d'Itri <md@linux.it>  Thu, 11 Sep 2003 19:57:35 +0200
+
+prelink (0.0.20030522-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Marco d'Itri <md@linux.it>  Fri, 23 May 2003 19:31:42 +0200
+
+prelink (0.0.20030515-1) unstable; urgency=low
+
+  * New upstream release. (Closes: #191874, #193548)
+
+ -- Marco d'Itri <md@linux.it>  Fri, 16 May 2003 14:30:08 +0200
+
+prelink (0.0.20030217-1) unstable; urgency=low
+
+  * New upstream release (from prelink-0.2.0-18.src.rpm).
+  * Removed arm and s390 from the Architectures list because the package
+    does not build on them. s390 porters beware: a newer <elf.h> would be
+    needed anyway!
+
+ -- Marco d'Itri <md@linux.it>  Sat,  3 May 2003 15:33:23 +0200
+
+prelink (0.0.20030210-1) unstable; urgency=low
+
+  * New upstream release.
+  * Fix the package description. (Closes: #175926)
+  * Add a comment about start-stop-daemon to README.Debian. (Closes: #179806)
+  * Depend on a newer libelfg0. (Closes: #179826)
+
+ -- Marco d'Itri <md@linux.it>  Sun, 16 Feb 2003 12:51:49 +0100
+
+prelink (0.0.20021213-2) unstable; urgency=low
+
+  * Initial release.
+
+ -- Marco d'Itri <md@linux.it>  Thu,  2 Jan 2003 01:56:54 +0100
+
diff --git a/debian/compat b/debian/compat
new file mode 100644 (file)
index 0000000..7ed6ff8
--- /dev/null
@@ -0,0 +1 @@
+5
diff --git a/debian/control b/debian/control
new file mode 100644 (file)
index 0000000..f094593
--- /dev/null
@@ -0,0 +1,26 @@
+Source: prelink
+Section: admin
+Priority: optional
+Maintainer: Rafal Krypa <r.krypa@samsung.com>
+X-Original-Maintainer: Andrés Roldán <aroldan@debian.org>
+X-Original-Uploaders: GNU Libc Maintainers <debian-glibc@lists.debian.org>
+Build-Depends: libc6-dev (>> 2.3.5) | libc6.1-dev (>> 2.3.5), debhelper (>> 4.0.18), libelfg0-dev, dpatch (>= 1.11)
+Standards-Version: 3.8.1.0
+
+Package: prelink
+Architecture: any 
+Depends: ${shlibs:Depends}, execstack
+Description: ELF prelinking utility to speed up dynamic linking
+ The prelink package contains a utility which modifies ELF shared libraries
+ and executables, so that far fewer relocations need to be resolved at
+ runtime and thus programs come up faster.
+
+Package: execstack
+Architecture: any
+Depends: ${shlibs:Depends}
+Conflicts: prelink (<< 0.0.20090311-2)
+Replaces: prelink
+Description: ELF GNU_STACK program header editing utility
+ The execstack package contains a utility which modifies (or adds) the
+ GNU_STACK program header to ELF binaries, and allows changing the executable
+ flag.
diff --git a/debian/copyright b/debian/copyright
new file mode 100644 (file)
index 0000000..4084b81
--- /dev/null
@@ -0,0 +1,23 @@
+It has be taken by Andrés Roldán <aroldan@debian.org>
+
+This package was debianized by Marco d'Itri <md@linux.it> on
+Thu,  2 Jan 2003 01:56:54 +0100.
+
+It was downloaded from:
+       ftp://people.redhat.com/jakub/prelink/
+       ftp://download.fedora.redhat.com/pub/fedora/linux/core/development/SRPMS/
+
+Upstream Author:
+       Jakub Jelinek <jakub@redhat.com>
+
+Copyright:
+  Copyright (C) 2001, 2002, 2003, 2004 Red Hat, Inc.
+  Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+       
+License:
+  You are free to distribute this software under the terms of
+  the GNU General Public License, Version 2.
+
+  On Debian systems, the complete text of the GNU General Public
+  License can be found in /usr/share/common-licenses/GPL-2 file.
+       
diff --git a/debian/patches/00list b/debian/patches/00list
new file mode 100644 (file)
index 0000000..3c31459
--- /dev/null
@@ -0,0 +1,10 @@
+Makefile.in
+prelink.h
+#ts
+md5sha
+#init
+fsync
+#prelink.8
+#cache
+timestamp
+arm.dynamic_linker.path
diff --git a/debian/patches/Makefile.in.dpatch b/debian/patches/Makefile.in.dpatch
new file mode 100755 (executable)
index 0000000..db64682
--- /dev/null
@@ -0,0 +1,34 @@
+#! /bin/sh -e
+##
+## All lines beginning with `## DP:' are a description of the patch.
+## DP: Changed optimization level.
+
+[ -f debian/patches/00patch-opts ] && . debian/patches/00patch-opts
+patch_opts="${patch_opts:--f --no-backup-if-mismatch}"
+
+if [ $# -ne 1 ]; then
+    echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+    exit 1
+fi
+case "$1" in
+       -patch) patch $patch_opts -p1 < $0;;
+       -unpatch) patch $patch_opts -p1 -R < $0;;
+        *)
+                echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+                exit 1;;
+esac
+
+exit 0
+@DPATCH@
+
+--- prelink-0.0.20030902.orig/src/Makefile.in  2003-07-01 14:38:41.000000000 +0000
++++ prelink-0.0.20030902/src/Makefile.in       2003-09-16 23:26:16.000000000 +0000
+@@ -108,7 +108,7 @@
+                 $(prelink_SYSDEPS)
+ prelink_LDADD = @LIBGELF@
+-prelink_LDFLAGS = -all-static
++#prelink_LDFLAGS = -all-static
+ extra_DIST = makecrc.c
+ subdir = src
diff --git a/debian/patches/arm.dynamic_linker.path.dpatch b/debian/patches/arm.dynamic_linker.path.dpatch
new file mode 100755 (executable)
index 0000000..b52a203
--- /dev/null
@@ -0,0 +1,20 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## arm.dynamic_linker.path.dpatch by Rafal Krypa <r.krypa@samsung.com>
+##
+## All lines beginning with `## DP:' are a description of the patch.
+## DP: File name for dynamic linker on armel is ld-linux.so.3 and arm Debian
+## DP: port is now dropped.
+
+@DPATCH@
+diff -urNad '--exclude=CVS' '--exclude=.svn' '--exclude=.git' '--exclude=.arch' '--exclude=.hg' '--exclude=_darcs' '--exclude=.bzr' prelink~/src/arch-arm.c prelink/src/arch-arm.c
+--- prelink~/src/arch-arm.c    2011-04-13 13:28:03.000000000 +0200
++++ prelink/src/arch-arm.c     2011-04-13 13:28:54.000000000 +0200
+@@ -832,7 +832,7 @@
+   .R_COPY = R_ARM_COPY,
+   .R_RELATIVE = R_ARM_RELATIVE,
+   .rtype_class_valid = RTYPE_CLASS_VALID,
+-  .dynamic_linker = "/lib/ld-linux.so.2",
++  .dynamic_linker = "/lib/ld-linux.so.3",
+   .adjust_dyn = arm_adjust_dyn,
+   .adjust_rel = arm_adjust_rel,
+   .adjust_rela = arm_adjust_rela,
diff --git a/debian/patches/cache.dpatch b/debian/patches/cache.dpatch
new file mode 100755 (executable)
index 0000000..97a5d3a
--- /dev/null
@@ -0,0 +1,37 @@
+#! /bin/sh -e
+##
+## All lines beginning with `## DP:' are a description of the patch.
+## DP: Patch to solves a crash when sorting the cache file 
+
+[ -f debian/patches/00patch-opts ] && . debian/patches/00patch-opts
+patch_opts="${patch_opts:--f --no-backup-if-mismatch}"
+
+if [ $# -ne 1 ]; then
+    echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+    exit 1
+fi
+case "$1" in
+       -patch) patch $patch_opts -p1 < $0;;
+       -unpatch) patch $patch_opts -p1 -R < $0;;
+        *)
+                echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+                exit 1;;
+esac
+
+exit 0
+@DPATCH@
+
+diff -urN prelink-0.0.20060712.orig/src/cache.c prelink-0.0.20060712/src/cache.c
+--- prelink-0.0.20060712.orig/src/cache.c      2006-08-15 23:36:13.000000000 +0000
++++ prelink-0.0.20060712/src/cache.c   2006-08-15 23:36:34.000000000 +0000
+@@ -336,8 +336,8 @@
+   struct prelink_entry *a = * (struct prelink_entry **) A;
+   struct prelink_entry *b = * (struct prelink_entry **) B;
+-  if (a == NULL && b != NULL)
+-    return 1;
++  if (a == NULL)
++    return (b != NULL);
+   if (a != NULL && b == NULL)
+     return -1;
diff --git a/debian/patches/dso.c.dpatch b/debian/patches/dso.c.dpatch
new file mode 100755 (executable)
index 0000000..f6b3fa7
--- /dev/null
@@ -0,0 +1,39 @@
+#! /bin/sh -e
+##
+## All lines beginning with `## DP:' are a description of the patch.
+## DP: Changed optimization level.
+
+[ -f debian/patches/00patch-opts ] && . debian/patches/00patch-opts
+patch_opts="${patch_opts:--f --no-backup-if-mismatch}"
+
+if [ $# -ne 1 ]; then
+    echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+    exit 1
+fi
+case "$1" in
+       -patch) patch $patch_opts -p1 < $0;;
+       -unpatch) patch $patch_opts -p1 -R < $0;;
+        *)
+                echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+                exit 1;;
+esac
+
+exit 0
+@DPATCH@
+
+--- prelink-0.0.20030902.orig/src/dso.c        2003-08-11 11:55:11.000000000 +0000
++++ prelink-0.0.20030902/src/dso.c     2003-09-16 23:26:16.000000000 +0000
+@@ -334,7 +334,13 @@
+       }
+     else
+       sections[--k] = i;
++/* this fails for the statically linked upx executable
+   assert (j == k);
++*/
++  if (j != k) {
++      printf("assert(j == k) at dso.c:311 has failed for file %s\n", name);
++      goto error_out;
++  }
+   section_cmp_dso = dso;
+   qsort (sections + k, dso->ehdr.e_shnum - k, sizeof (*sections), section_cmp);
diff --git a/debian/patches/fsync.dpatch b/debian/patches/fsync.dpatch
new file mode 100755 (executable)
index 0000000..9aaadc5
--- /dev/null
@@ -0,0 +1,46 @@
+#! /bin/sh -e
+##
+## All lines beginning with `## DP:' are a description of the patch.
+## DP: Ensures to write the data on the disk when renamed a file 
+
+[ -f debian/patches/00patch-opts ] && . debian/patches/00patch-opts
+patch_opts="${patch_opts:--f --no-backup-if-mismatch}"
+
+if [ $# -ne 1 ]; then
+    echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+    exit 1
+fi
+case "$1" in
+       -patch) patch $patch_opts -p1 < $0;;
+       -unpatch) patch $patch_opts -p1 -R < $0;;
+        *)
+                echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+                exit 1;;
+esac
+
+exit 0
+@DPATCH@
+
+diff -urN prelink-0.0.20060522.orig/src/cache.c prelink-0.0.20060522/src/cache.c
+--- prelink-0.0.20060522.orig/src/cache.c      2006-05-22 12:07:57.000000000 +0000
++++ prelink-0.0.20060522/src/cache.c   2006-05-24 15:18:40.000000000 +0000
+@@ -627,6 +627,7 @@
+   if (write (fd, &cache, sizeof (cache)) != sizeof (cache)
+       || write (fd, data, len) != len
+       || fchmod (fd, 0644)
++      || fsync (fd)
+       || close (fd)
+       || rename (prelink_cache_tmp, prelink_cache))
+     {
+diff -urN prelink-0.0.20060522.orig/src/dso.c prelink-0.0.20060522/src/dso.c
+--- prelink-0.0.20060522.orig/src/dso.c        2006-05-22 14:02:34.000000000 +0000
++++ prelink-0.0.20060522/src/dso.c     2006-05-24 15:19:09.000000000 +0000
+@@ -1601,6 +1601,8 @@
+     }
+   elf_end (dso->elf);
++  if (dso_is_rdwr (dso))
++    fsync (dso->fd);
+   close (dso->fd);
+   if (dso->elfro)
+     {
diff --git a/debian/patches/init.dpatch b/debian/patches/init.dpatch
new file mode 100755 (executable)
index 0000000..7a1269e
--- /dev/null
@@ -0,0 +1,86 @@
+#! /bin/sh -e
+##
+## All lines beginning with `## DP:' are a description of the patch.
+## DP: Adds method to re-execute /sbin/init upon change made by prelink.
+## DP: Bug#281409
+
+[ -f debian/patches/00patch-opts ] && . debian/patches/00patch-opts
+patch_opts="${patch_opts:--f --no-backup-if-mismatch}"
+
+if [ $# -ne 1 ]; then
+    echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+    exit 1
+fi
+case "$1" in
+       -patch) patch $patch_opts -p1 < $0;;
+       -unpatch) patch $patch_opts -p1 -R < $0;;
+        *)
+                echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+                exit 1;;
+esac
+
+exit 0
+@DPATCH@
+
+diff -urN prelink-0.0.20041012.orig/src/main.c prelink-0.0.20041012/src/main.c
+--- prelink-0.0.20041012.orig/src/main.c       2004-09-30 16:07:57.000000000 +0000
++++ prelink-0.0.20041012/src/main.c    2004-11-16 00:39:28.000000000 +0000
+@@ -58,6 +58,8 @@
+ const char *prelink_conf = PRELINK_CONF;
+ const char *prelink_cache = PRELINK_CACHE;
+ const char *undo_output;
++int noreexecinit;
++time_t initctime;
+ const char *argp_program_version = "prelink 1.0";
+@@ -111,6 +113,7 @@
+   {"mmap-region-end", OPT_MMAP_REG_END, "BASE_ADDRESS", OPTION_HIDDEN, "" },
+   {"seed",            OPT_SEED, "SEED", OPTION_HIDDEN, "" },
+   {"compute-checksum",        OPT_COMPUTE_CHECKSUM, 0, OPTION_HIDDEN, "" },
++  {"init",             'i', 0, 0,  "Do not re-execute init" },
+   { 0 }
+ };
+@@ -222,12 +225,29 @@
+     case OPT_COMPUTE_CHECKSUM:
+       compute_checksum = 1;
+       break;
++    case 'i':
++      noreexecinit=1;
++      break;
+     default:
+       return ARGP_ERR_UNKNOWN;
+     }
+   return 0;
+ }
++time_t get_ctime(const char *file) {
++  struct stat st;
++  if(stat(file,&st) == 0)
++    return st.st_ctime;
++  return 0;
++}
++
++void checkinit() {
++    if(initctime != get_ctime("/sbin/init")) {
++      printf("Executing /sbin/init U\n");
++      system("/sbin/init U");
++       }
++}
++
+ static struct argp argp = { options, parse_opt, "[FILES]", argp_doc };
+ int
+@@ -247,6 +267,11 @@
+   argp_parse (&argp, argc, argv, 0, &remaining, 0);
++  if(!noreexecinit) {
++    initctime = get_ctime("/sbin/init");
++       atexit(checkinit);
++  }
++
+   if (ld_library_path == NULL)
+     ld_library_path = getenv ("LD_LIBRARY_PATH");
diff --git a/debian/patches/layout.c.dpatch b/debian/patches/layout.c.dpatch
new file mode 100755 (executable)
index 0000000..a299fa1
--- /dev/null
@@ -0,0 +1,49 @@
+#! /bin/sh -e
+##
+## All lines beginning with `## DP:' are a description of the patch.
+## DP: Changed optimization level.
+
+[ -f debian/patches/00patch-opts ] && . debian/patches/00patch-opts
+patch_opts="${patch_opts:--f --no-backup-if-mismatch}"
+
+if [ $# -ne 1 ]; then
+    echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+    exit 1
+fi
+case "$1" in
+       -patch) patch $patch_opts -p1 < $0;;
+       -unpatch) patch $patch_opts -p1 -R < $0;;
+        *)
+                echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+                exit 1;;
+esac
+
+exit 0
+@DPATCH@
+
+--- prelink-0.0.20030902.orig/src/layout.c     2003-06-13 15:12:26.000000000 +0000
++++ prelink-0.0.20030902/src/layout.c  2003-09-16 23:26:16.000000000 +0000
+@@ -614,7 +614,23 @@
+               < ((deps[j - 1]->end + max_page_size - 1)
+                  & ~(max_page_size - 1))
+               && (deps[j]->type == ET_DYN || deps[j - 1]->type == ET_DYN))
++{ /* XXX some binaries cause a segfault but I do not know why -- Md*/
++    fprintf(stderr,
++      "Unknown fatal error at src/layout.c:538\n"
++      "l.binlibs[i]->filename: %s\n"
++      "deps[j]->base: %lx\n"
++      "(deps[j - 1]->end + max_page_size - 1) & ~(max_page_size - 1): %ld\n"
++      "[deps[j - 1]->end: %lx  max_page_size: %lu]\n"
++      "deps[j]->type: %x  deps[j - 1]->type: %x\n"
++      ,
++      l.binlibs[i]->filename,
++      deps[j]->base,
++      ((deps[j - 1]->end + max_page_size - 1) & ~(max_page_size - 1)),
++      deps[j - 1]->end, max_page_size,
++      deps[j]->type, deps[j - 1]->type
++      );
+             abort ();
++}
+       }
+ #endif
+     }
diff --git a/debian/patches/md5sha.dpatch b/debian/patches/md5sha.dpatch
new file mode 100755 (executable)
index 0000000..853c4b8
--- /dev/null
@@ -0,0 +1,44 @@
+#! /bin/sh -e
+##
+## All lines beginning with `## DP:' are a description of the patch.
+## DP: Changes confusing reference to --md5 and --sha. Bug#274146 
+
+[ -f debian/patches/00patch-opts ] && . debian/patches/00patch-opts
+patch_opts="${patch_opts:--f --no-backup-if-mismatch}"
+
+if [ $# -ne 1 ]; then
+    echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+    exit 1
+fi
+case "$1" in
+       -patch) patch $patch_opts -p1 < $0;;
+       -unpatch) patch $patch_opts -p1 -R < $0;;
+        *)
+                echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+                exit 1;;
+esac
+
+exit 0
+@DPATCH@
+
+diff -urN prelink-0.0.20040908.orig/doc/prelink.8 prelink-0.0.20040908/doc/prelink.8
+--- prelink-0.0.20040908.orig/doc/prelink.8    2003-08-05 08:27:59.000000000 +0000
++++ prelink-0.0.20040908/doc/prelink.8 2004-10-01 14:43:24.000000000 +0000
+@@ -173,7 +173,7 @@
+ unprobable case of modified file and original file having the same digest
+ or checksum).
+ .TP
+-.B \-\-md5
++.B \-y \-\-md5
+ This is similar to
+ .I \-\-verify
+ option, except instead of outputing the content of the binary or library
+@@ -181,7 +181,7 @@
+ See
+ .BR md5sum (1).
+ .TP
+-.B \-\-sha
++.B \-y \-\-sha
+ This is similar to
+ .I \-\-verify
+ option, except instead of outputing the content of the binary or library
diff --git a/debian/patches/prelink.8.dpatch b/debian/patches/prelink.8.dpatch
new file mode 100755 (executable)
index 0000000..a65049b
--- /dev/null
@@ -0,0 +1,62 @@
+#! /bin/sh -e
+##
+## All lines beginning with `## DP:' are a description of the patch.
+## DP: Ensures to write the data on the disk when renamed a file 
+
+[ -f debian/patches/00patch-opts ] && . debian/patches/00patch-opts
+patch_opts="${patch_opts:--f --no-backup-if-mismatch}"
+
+if [ $# -ne 1 ]; then
+    echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+    exit 1
+fi
+case "$1" in
+       -patch) patch $patch_opts -p1 < $0;;
+       -unpatch) patch $patch_opts -p1 -R < $0;;
+        *)
+                echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+                exit 1;;
+esac
+
+exit 0
+@DPATCH@
+
+diff -urN prelink-0.0.20060712.orig/doc/prelink.8 prelink-0.0.20060712/doc/prelink.8
+--- prelink-0.0.20060712.orig/doc/prelink.8    2004-11-23 10:37:41.000000000 +0000
++++ prelink-0.0.20060712/doc/prelink.8 2006-07-17 13:53:39.000000000 +0000
+@@ -74,7 +74,7 @@
+ When assigning addresses to libraries, start with random address within
+ architecture dependant virtual address space range.
+ This can make some buffer overflow attacks slightly harder to exploit,
+-because libraries are not present on the same addresses accross different
++because libraries are not present on the same addresses across different
+ machines.
+ Normally, assigning virtual addresses starts at the bottom of architecture
+ dependant range.
+@@ -176,7 +176,7 @@
+ .B \-\-md5
+ This is similar to
+ .I \-\-verify
+-option, except instead of outputing the content of the binary or library
++option, except instead of outputting the content of the binary or library
+ before prelinking to standard output MD5 digest is printed.
+ See
+ .BR md5sum (1).
+@@ -184,7 +184,7 @@
+ .B \-\-sha
+ This is similar to
+ .I \-\-verify
+-option, except instead of outputing the content of the binary or library
++option, except instead of outputting the content of the binary or library
+ before prelinking to standard output SHA1 digest is printed.
+ See
+ .BR sha1sum (1).
+@@ -218,7 +218,7 @@
+ .I \-h
+ options apply), or particular ELF binaries or shared libraries.
+ Unlike when walking directory hierarchies, specifying a shared library
+-explicitely on the command line causes it to be prelinked even if no binary
++explicitly on the command line causes it to be prelinked even if no binary
+ is linked against it. Normally, only binaries are collected together with
+ all libraries they depend on.
+ .SH EXAMPLES
diff --git a/debian/patches/prelink.h.dpatch b/debian/patches/prelink.h.dpatch
new file mode 100755 (executable)
index 0000000..33bc986
--- /dev/null
@@ -0,0 +1,71 @@
+#! /bin/sh -e
+##
+## All lines beginning with `## DP:' are a description of the patch.
+## DP: Changed optimization level.
+
+[ -f debian/patches/00patch-opts ] && . debian/patches/00patch-opts
+patch_opts="${patch_opts:--f --no-backup-if-mismatch}"
+
+if [ $# -ne 1 ]; then
+    echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+    exit 1
+fi
+case "$1" in
+       -patch) patch $patch_opts -p1 < $0;;
+       -unpatch) patch $patch_opts -p1 -R < $0;;
+        *)
+                echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+                exit 1;;
+esac
+
+exit 0
+@DPATCH@
+
+--- prelink-0.0.20030902.orig/src/prelink.h    2003-08-11 11:54:01.000000000 +0000
++++ prelink-0.0.20030902/src/prelink.h 2003-09-16 23:26:16.000000000 +0000
+@@ -26,6 +26,45 @@
+ #include <stdio.h>
+ #include <sys/stat.h>
++/* http://gcc.gnu.org/ml/gcc/2003-01/msg00922.html */
++#ifndef R_390_TLS_DTPMOD
++#define R_390_TLS_DTPMOD 54
++#define R_390_TLS_DTPOFF 55
++#define R_390_TLS_TPOFF  56
++#endif
++
++/* from http://www.cygwin.com/ml/libc-alpha/2003-02/msg00241.html */
++#ifndef R_PPC_TLS
++#define R_PPC_TLS             67
++#define R_PPC_DTPMOD32                68
++#define R_PPC_TPREL16         69
++#define R_PPC_TPREL16_LO      70
++#define R_PPC_TPREL16_HI      71
++#define R_PPC_TPREL16_HA      72
++#define R_PPC_TPREL32         73
++#define R_PPC_DTPREL16                74
++#define R_PPC_DTPREL16_LO     75
++#define R_PPC_DTPREL16_HI     76
++#define R_PPC_DTPREL16_HA     77
++#define R_PPC_DTPREL32                78
++#define R_PPC_GOT_TLSGD16     79
++#define R_PPC_GOT_TLSGD16_LO  80
++#define R_PPC_GOT_TLSGD16_HI  81
++#define R_PPC_GOT_TLSGD16_HA  82
++#define R_PPC_GOT_TLSLD16     83
++#define R_PPC_GOT_TLSLD16_LO  84
++#define R_PPC_GOT_TLSLD16_HI  85
++#define R_PPC_GOT_TLSLD16_HA  86
++#define R_PPC_GOT_TPREL16     87
++#define R_PPC_GOT_TPREL16_LO  88
++#define R_PPC_GOT_TPREL16_HI  89
++#define R_PPC_GOT_TPREL16_HA  90
++#define R_PPC_GOT_DTPREL16    91
++#define R_PPC_GOT_DTPREL16_LO 92
++#define R_PPC_GOT_DTPREL16_HI 93
++#define R_PPC_GOT_DTPREL16_HA 94
++#endif
++
+ #ifndef DT_GNU_LIBLIST
+ #define DT_GNU_LIBLIST                0x6ffffef9
+ #define DT_GNU_LIBLISTSZ      0x6ffffdf7
diff --git a/debian/patches/timestamp.dpatch b/debian/patches/timestamp.dpatch
new file mode 100755 (executable)
index 0000000..18aae0e
--- /dev/null
@@ -0,0 +1,102 @@
+#! /bin/sh -e
+##
+## All lines beginning with `## DP:' are a description of the patch.
+## DP: Adds -T option to print the timestamp 
+
+[ -f debian/patches/00patch-opts ] && . debian/patches/00patch-opts
+patch_opts="${patch_opts:--f --no-backup-if-mismatch}"
+
+if [ $# -ne 1 ]; then
+    echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+    exit 1
+fi
+case "$1" in
+       -patch) patch $patch_opts -p1 < $0;;
+       -unpatch) patch $patch_opts -p1 -R < $0;;
+        *)
+                echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+                exit 1;;
+esac
+
+exit 0
+@DPATCH@
+
+diff -urN prelink-0.0.20090925.orig/doc/prelink.8 prelink-0.0.20090925/doc/prelink.8
+--- prelink-0.0.20090925.orig/doc/prelink.8    2009-10-19 13:59:06.000000000 +0000
++++ prelink-0.0.20090925/doc/prelink.8 2009-10-19 13:59:27.000000000 +0000
+@@ -147,6 +147,9 @@
+ When processing command line directory arguments, limit directory tree walk
+ to a single file system.
+ .TP
++.B \-T \-\-timestamp\-output
++Prefix output with timestamps.
++.TP
+ .B \-u \-\-undo
+ Revert binaries and libraries to their original content before they were
+ prelinked.
+diff -urN prelink-0.0.20090925.orig/src/main.c prelink-0.0.20090925/src/main.c
+--- prelink-0.0.20090925.orig/src/main.c       2009-10-19 13:59:06.000000000 +0000
++++ prelink-0.0.20090925/src/main.c    2009-10-19 14:00:19.000000000 +0000
+@@ -25,6 +25,7 @@
+ #include <argp.h>
+ #include <stdlib.h>
+ #include <unistd.h>
++#include <time.h>
+ #include "prelink.h"
+@@ -50,6 +51,7 @@
+ enum verify_method_t verify_method;
+ int quick;
+ int compute_checksum;
++int timestamp_output;
+ long long seed;
+ GElf_Addr mmap_reg_start = ~(GElf_Addr) 0;
+ GElf_Addr mmap_reg_end = ~(GElf_Addr) 0;
+@@ -99,6 +101,7 @@
+   {"undo",            'u', 0, 0,  "Undo prelink" },
+   {"verbose",         'v', 0, 0,  "Produce verbose output" },
+   {"verify",          'y', 0, 0,  "Verify file consistency by undoing and redoing prelink and printing original to standard output" },
++  {"timestamp-output", 'T', 0, 0,  "Prefix output with timestamps" },
+   {"md5",             OPT_MD5, 0, 0, "For verify print MD5 sum of original to standard output instead of content" },
+   {"sha",             OPT_SHA, 0, 0, "For verify print SHA sum of original to standard output instead of content" },
+   {"dynamic-linker",  OPT_DYNAMIC_LINKER, "DYNAMIC_LINKER",
+@@ -143,6 +146,9 @@
+     case 'v':
+       ++verbose;
+       break;
++    case 'T':
++      timestamp_output = 1;
++      break;
+     case 'R':
+       random_base |= 1;
+       break;
+@@ -250,6 +256,19 @@
+ static struct argp argp = { options, parse_opt, "[FILES]", argp_doc };
++void print_error_prefix(void)
++{
++  time_t t;
++  char buf[20];
++
++  if (timestamp_output) {
++    t = time(NULL);
++    if (strftime(buf, 20, "%Y-%m-%d %H:%M:%S", localtime(&t)))
++      fprintf(stderr, "%s ", buf);
++  }
++  fprintf(stderr, "prelink: ");
++}
++
+ int
+ main (int argc, char *argv[])
+ {
+@@ -257,6 +276,8 @@
+   setlocale (LC_ALL, "");
++  error_print_progname = print_error_prefix;
++
+   /* Set the default for exec_shield.  */
+   if (! access ("/proc/sys/kernel/exec-shield", F_OK))
+     exec_shield = 1;
diff --git a/debian/patches/ts.dpatch b/debian/patches/ts.dpatch
new file mode 100755 (executable)
index 0000000..de378c7
--- /dev/null
@@ -0,0 +1,53 @@
+#! /bin/sh -e
+##
+## All lines beginning with `## DP:' are a description of the patch.
+## DP: Removed some tests.
+
+[ -f debian/patches/00patch-opts ] && . debian/patches/00patch-opts
+patch_opts="${patch_opts:--f --no-backup-if-mismatch}"
+
+if [ $# -ne 1 ]; then
+    echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+    exit 1
+fi
+case "$1" in
+       -patch) patch $patch_opts -p1 < $0;;
+       -unpatch) patch $patch_opts -p1 -R < $0;;
+        *)
+                echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+                exit 1;;
+esac
+
+exit 0
+@DPATCH@
+
+diff -urN prelink-0.0.20040520.orig/testsuite/Makefile.am prelink-0.0.20040520/testsuite/Makefile.am
+--- prelink-0.0.20040520.orig/testsuite/Makefile.am    2004-05-14 21:55:10.000000000 +0000
++++ prelink-0.0.20040520/testsuite/Makefile.am 2004-06-03 15:18:21.000000000 +0000
+@@ -10,9 +10,8 @@
+       reloc7.sh reloc8.sh reloc9.sh reloc10.sh reloc11.sh \
+       shuffle1.sh shuffle2.sh shuffle3.sh shuffle4.sh shuffle5.sh \
+       shuffle6.sh shuffle7.sh \
+-      layout1.sh layout2.sh tls1.sh tls2.sh tls3.sh tls4.sh tls5.sh tls6.sh \
+-      cxx1.sh quick1.sh cycle1.sh cycle2.sh deps1.sh deps2.sh \
+-      undosyslibs.sh
++      layout1.sh layout2.sh tls1.sh tls2.sh tls3.sh tls4.sh tls5.sh \
++      cxx1.sh cycle1.sh cycle2.sh deps1.sh deps2.sh 
+ TESTS_ENVIRONMENT = \
+       PRELINK="../src/prelink -c ./prelink.conf -C ./prelink.cache --ld-library-path=. --dynamic-linker=`echo ./ld*.so.*[0-9]`" \
+       CC="$(CC) $(LINKOPTS)" CCLINK="$(CC) -Wl,--dynamic-linker=`echo ./ld*.so.*[0-9]`" \
+diff -urN prelink-0.0.20040520.orig/testsuite/Makefile.in prelink-0.0.20040520/testsuite/Makefile.in
+--- prelink-0.0.20040520.orig/testsuite/Makefile.in    2004-05-14 21:55:27.000000000 +0000
++++ prelink-0.0.20040520/testsuite/Makefile.in 2004-06-03 15:18:05.000000000 +0000
+@@ -105,9 +105,8 @@
+       reloc7.sh reloc8.sh reloc9.sh reloc10.sh reloc11.sh \
+       shuffle1.sh shuffle2.sh shuffle3.sh shuffle4.sh shuffle5.sh \
+       shuffle6.sh shuffle7.sh \
+-      layout1.sh layout2.sh tls1.sh tls2.sh tls3.sh tls4.sh tls5.sh tls6.sh \
+-      cxx1.sh quick1.sh cycle1.sh cycle2.sh deps1.sh deps2.sh \
+-      undosyslibs.sh
++      layout1.sh layout2.sh tls1.sh tls2.sh tls3.sh tls4.sh tls5.sh \
++      cxx1.sh cycle1.sh cycle2.sh deps1.sh deps2.sh 
+ TESTS_ENVIRONMENT = \
+       PRELINK="../src/prelink -c ./prelink.conf -C ./prelink.cache --ld-library-path=. --dynamic-linker=`echo ./ld*.so.*[0-9]`" \
diff --git a/debian/patches/ts2.dpatch b/debian/patches/ts2.dpatch
new file mode 100755 (executable)
index 0000000..cacb832
--- /dev/null
@@ -0,0 +1,52 @@
+#! /bin/sh -e
+##
+## All lines beginning with `## DP:' are a description of the patch.
+## DP: Removed some tests on alpha
+
+[ -f debian/patches/00patch-opts ] && . debian/patches/00patch-opts
+patch_opts="${patch_opts:--f --no-backup-if-mismatch}"
+
+if [ $# -ne 1 ]; then
+    echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+    exit 1
+fi
+case "$1" in
+       -patch) patch $patch_opts -p1 < $0;;
+       -unpatch) patch $patch_opts -p1 -R < $0;;
+        *)
+                echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+                exit 1;;
+esac
+
+exit 0
+
+@DPATCH@
+
+diff -urN prelink-0.0.20040520.orig/testsuite/Makefile.am prelink-0.0.20040520/testsuite/Makefile.am
+--- prelink-0.0.20040520.orig/testsuite/Makefile.am    2004-06-05 15:43:28.000000000 +0000
++++ prelink-0.0.20040520/testsuite/Makefile.am 2004-06-05 15:44:04.000000000 +0000
+@@ -10,8 +10,8 @@
+       reloc7.sh reloc8.sh reloc9.sh reloc10.sh reloc11.sh \
+       shuffle1.sh shuffle2.sh shuffle3.sh shuffle4.sh shuffle5.sh \
+       shuffle6.sh shuffle7.sh \
+-      layout1.sh layout2.sh tls1.sh tls2.sh tls3.sh tls4.sh tls5.sh \
+-      cxx1.sh cycle1.sh cycle2.sh deps1.sh deps2.sh 
++      tls1.sh tls2.sh tls3.sh tls4.sh tls5.sh \
++      cycle1.sh cycle2.sh deps1.sh deps2.sh 
+ TESTS_ENVIRONMENT = \
+       PRELINK="../src/prelink -c ./prelink.conf -C ./prelink.cache --ld-library-path=. --dynamic-linker=`echo ./ld*.so.*[0-9]`" \
+       CC="$(CC) $(LINKOPTS)" CCLINK="$(CC) -Wl,--dynamic-linker=`echo ./ld*.so.*[0-9]`" \
+diff -urN prelink-0.0.20040520.orig/testsuite/Makefile.in prelink-0.0.20040520/testsuite/Makefile.in
+--- prelink-0.0.20040520.orig/testsuite/Makefile.in    2004-06-05 15:43:28.000000000 +0000
++++ prelink-0.0.20040520/testsuite/Makefile.in 2004-06-05 15:44:36.000000000 +0000
+@@ -105,8 +105,8 @@
+       reloc7.sh reloc8.sh reloc9.sh reloc10.sh reloc11.sh \
+       shuffle1.sh shuffle2.sh shuffle3.sh shuffle4.sh shuffle5.sh \
+       shuffle6.sh shuffle7.sh \
+-      layout1.sh layout2.sh tls1.sh tls2.sh tls3.sh tls4.sh tls5.sh \
+-      cxx1.sh cycle1.sh cycle2.sh deps1.sh deps2.sh 
++      tls1.sh tls2.sh tls3.sh tls4.sh tls5.sh \
++      cycle1.sh cycle2.sh deps1.sh deps2.sh 
+ TESTS_ENVIRONMENT = \
+       PRELINK="../src/prelink -c ./prelink.conf -C ./prelink.cache --ld-library-path=. --dynamic-linker=`echo ./ld*.so.*[0-9]`" \
diff --git a/debian/prelink.bin.8 b/debian/prelink.bin.8
new file mode 100644 (file)
index 0000000..c102c5f
--- /dev/null
@@ -0,0 +1 @@
+.so man8/prelink.8
diff --git a/debian/prelink.conf b/debian/prelink.conf
new file mode 100644 (file)
index 0000000..8959bf0
--- /dev/null
@@ -0,0 +1,44 @@
+# This config file contains a list of directories both with binaries
+# and libraries prelink should consider by default.
+# If a directory name is prefixed with `-l ', the directory hierarchy
+# will be walked as long as filesystem boundaries are not crossed.
+# If a directory name is prefixed with `-h ', symbolic links in a
+# directory hierarchy are followed.
+# Directories or files with `-b ' prefix will be blacklisted.
+-b *.la
+-b *.png
+-b *.py
+-b *.pl
+-b *.pm
+-b *.sh
+-b *.xml
+-b *.xslt
+-b *.a
+-b *.js
+-b /lib/modules
+-b /usr/lib/locale
+-l /usr/local/sbin
+-l /sbin
+-l /usr/sbin
+-l /usr/local/bin
+-l /bin
+-l /usr/bin
+-l /usr/X11R6/bin
+-l /usr/games
+-l /usr/local/lib
+-l /lib
+-l /usr/lib
+-l /usr/X11R6/lib
+
+# Non-standard directories in SLP containing ELF binaries
+-l /default-files
+-l /opt/apps
+-l /opt/lib
+-l /opt/live
+-l /opt/ug-1/lib
+-l /opt/ug/lib
+-l /usr/etc/package-manager/backendlib
+-l /usr/libexec
+-l /usr/share/air25-runtime
+-l /usr/share/scim
+-l /usr/share/we/bin
diff --git a/debian/prelink.cron.daily b/debian/prelink.cron.daily
new file mode 100644 (file)
index 0000000..326f526
--- /dev/null
@@ -0,0 +1,59 @@
+#!/bin/bash
+
+. /etc/default/prelink
+
+renice +19 -p $$ >/dev/null 2>&1
+
+# Default action. Won't do anything. Bug#231007.
+if [ "$PRELINKING" != yes ] && [ "$PRELINKING" != no ]; then
+    echo "Default action. Modify /etc/default/prelink to change this." > /var/log/prelink.log
+    exit 0
+fi
+
+PRELINK_OPTS="$PRELINK_OPTS -T"
+
+if [ "$PRELINKING" = no ]; then
+  if [ -f /etc/prelink.cache ]; then
+    echo /usr/sbin/prelink -ua > /var/log/prelink.log
+    /usr/sbin/prelink -ua >> /var/log/prelink.log 2>&1 \
+      || echo Prelink failed with return value $? >> /var/log/prelink.log
+    rm -f /etc/prelink.cache
+    # Restart init if needed
+    [ -n "$(find `ldd /sbin/init | awk 'NF == 4 { print $3 }'` /sbin/init -ctime -1 2>/dev/null )" ] && /sbin/telinit u
+  fi
+  exit 0
+fi
+
+if [ ! -f /etc/prelink.cache -o -f /var/lib/misc/prelink.force ] \
+   || grep -q '^prelink-ELF0.[0-2]' /etc/prelink.cache; then
+  # If cache does not exist or is from older prelink versions or
+  # if we were asked to explicitely, force full prelinking
+  rm -f /etc/prelink.cache /var/lib/misc/prelink.force
+  PRELINK_OPTS="$PRELINK_OPTS -f"
+  date > /var/lib/misc/prelink.full
+  cp -a /var/lib/misc/prelink.{full,quick}
+elif [ -n "$PRELINK_FULL_TIME_INTERVAL" \
+       -a "`find /var/lib/misc/prelink.full -mtime -${PRELINK_FULL_TIME_INTERVAL} 2>/dev/null`" \
+         = /var/lib/misc/prelink.full ]; then
+  # If no more than PRELINK_NONRPM_CHECK_INTERVAL days elapsed from last prelink
+  # (be it full or quick) and no packages have been upgraded via dpkg since then,
+  # don't do anything.
+  [ "`find /var/lib/misc/prelink.quick -mtime -${PRELINK_NONRPM_CHECK_INTERVAL:-7} 2>/dev/null`" \
+    -a -f /var/lib/dpkg/status \
+    -a /var/lib/dpkg/status -ot /var/lib/misc/prelink.quick ] && exit 0 
+  date > /var/lib/misc/prelink.quick
+  # If prelink without -q has been run in the last
+  # PRELINK_FULL_TIME_INTERVAL days, just use quick mode
+  PRELINK_OPTS="$PRELINK_OPTS -q"
+else
+  date > /var/lib/misc/prelink.full
+  cp -a /var/lib/misc/prelink.{full,quick}
+fi
+
+echo /usr/sbin/prelink -a $PRELINK_OPTS > /var/log/prelink.log
+/usr/sbin/prelink -a $PRELINK_OPTS >> /var/log/prelink.log 2>&1 \
+  || echo Prelink failed with return value $? >> /var/log/prelink.log
+# Restart init if needed
+[ -n "$(find `ldd /sbin/init | awk 'NF == 4 { print $3 }'` /sbin/init -ctime -1 2>/dev/null )" ] && /sbin/telinit u
+
+exit 0
diff --git a/debian/prelink.default b/debian/prelink.default
new file mode 100644 (file)
index 0000000..88de0f7
--- /dev/null
@@ -0,0 +1,40 @@
+# Set this to no to disable prelinking altogether
+# or to yes to enable it. Any other value will
+# make prelink do nothing.
+# (if you change this from yes to no prelink -ua
+# will be run next night to undo prelinking)
+PRELINKING=unknown
+
+# Options to pass to prelink
+# -m   Try to conserve virtual memory by allowing overlapping
+#      assigned virtual memory slots for libraries which
+#      never appear together in one binary
+# -R   Randomize virtual memory slot assignments for libraries.
+#      This makes it slightly harder for various buffer overflow
+#      attacks, since library addresses will be different on each
+#      host using -R.
+PRELINK_OPTS=-mR
+
+# How often should full prelink be run (in days)
+# Normally, prelink will be run in quick mode, every
+# $PRELINK_FULL_TIME_INTERVAL days it will be run
+# in normal mode.  Comment this line out if prelink 
+# should be run in normal mode always.
+PRELINK_FULL_TIME_INTERVAL=14
+
+# How often should prelink run (in days) even if
+# no packages have been upgraded via dpkg.
+# If $PRELINK_FULL_TIME_INTERVAL days have not elapsed
+# yet since last normal mode prelinking, last
+# quick mode prelinking happened less than
+# $PRELINK_NONRPM_CHECK_INTERVAL days ago
+# and no packages have been upgraded by rpm
+# since last quick mode prelinking, prelink
+# will not do anything.
+# Change to
+# PRELINK_NONRPM_CHECK_INTERVAL=0
+# if you want to disable the dpkg database timestamp
+# check (especially if you don't use dpkg
+# exclusively to upgrade system libraries and/or binaries).
+PRELINK_NONRPM_CHECK_INTERVAL=7
+
diff --git a/debian/prelink.postrm b/debian/prelink.postrm
new file mode 100644 (file)
index 0000000..0496522
--- /dev/null
@@ -0,0 +1,17 @@
+#!/bin/sh -e
+
+case "$1" in
+    remove)
+    rm -f /etc/prelink.cache /var/lib/misc/prelink.full /var/log/prelink.log
+    ;;
+
+    purge|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
+    ;;
+
+    *)
+    echo "postrm called with unknown argument '$1'" >&2
+    exit 1
+    ;;
+esac
+
+#DEBHELPER#
diff --git a/debian/prelink.sh b/debian/prelink.sh
new file mode 100644 (file)
index 0000000..1108f4f
--- /dev/null
@@ -0,0 +1,52 @@
+#!/bin/bash 
+#
+# Prelink wrapper script
+# Author: Andres Roldan <aroldan@debian.org>
+
+# Needed to avoid annoying message in coreutils >= 6.0
+export LC_ALL='C'
+
+# Recommended minimun free space, 50MB
+min_size=50000
+
+will_prelink="$(for i in $(awk '! /#/ && ! /^-b/ && NF >= 1 {print $NF}' < /etc/prelink.conf); do test -e "$i" && echo "$i"; done)"
+have_warn=0
+
+df -P $will_prelink | sort | uniq | {
+    have_warn=0
+    while read part x x size x mount_point; do
+       if $(echo $part | grep -qv "^/"); then
+           continue;
+       fi
+
+       if [ $size -le "$min_size" ]; then
+           echo "Partition $part ($mount_point) has only $size KB free." >&2
+           have_warn=1
+       fi
+    done
+    
+    exit $have_warn     # Exit from piped subshell
+}
+
+if [ "$?" -eq "1" ]; then
+    answer="No"
+    if [ -t 1 ]; then
+       echo
+           echo "!! WARNING !!"
+           echo "It's recommended to have at least $min_size KB of disk space."
+           echo "Prelink would _really_ damage the ELF files on those partitions."
+           read -t 20 -p "Do you really want to run prelink? (yes/No): " answer
+    fi
+    
+    if [ "$answer" = "yes" ]; then
+       echo "You were warned. Running prelink..."
+       exec /usr/sbin/prelink.bin "$@"
+    else
+       echo
+       echo "Aborting prelink."
+       exit 1
+    fi
+fi >&2
+
+exec /usr/sbin/prelink.bin "$@"
+
diff --git a/debian/prelink.spec b/debian/prelink.spec
new file mode 100644 (file)
index 0000000..01492f6
--- /dev/null
@@ -0,0 +1,609 @@
+Summary: An ELF prelinking utility
+Name: prelink
+Version: 0.4.0
+Release: 7%{?dist}
+License: GPLv2+
+Group: System Environment/Base
+%define date 20090311
+Source: ftp://people.redhat.com/jakub/prelink/prelink-%{date}.tar.bz2
+Source2: prelink.conf
+Source3: prelink.cron
+Source4: prelink.sysconfig
+Buildroot: %{_tmppath}/prelink-root
+#BuildRequires: libelf-devel >= 0.7.0-5
+BuildRequires: elfutils-libelf-devel-static
+BuildRequires: libselinux-static
+BuildRequires: glibc-static
+Requires: glibc >= 2.2.4-18, coreutils, findutils
+Requires: util-linux, gawk, grep
+# For now
+ExclusiveArch: %{ix86} alpha sparc sparcv9 sparc64 s390 s390x x86_64 ppc ppc64
+
+%description
+The prelink package contains a utility which modifies ELF shared libraries
+and executables, so that far fewer relocations need to be resolved at runtime
+and thus programs come up faster.
+
+%prep
+%setup -q -n prelink
+
+%build
+%configure --disable-shared
+make %{_smp_mflags}
+echo ====================TESTING=========================
+make -C testsuite check-harder
+make -C testsuite check-cycle
+echo ====================TESTING END=====================
+
+%install
+%{makeinstall}
+mkdir -p %{buildroot}%{_sysconfdir}/rpm
+cp -a %{SOURCE2} %{buildroot}%{_sysconfdir}
+mkdir -p %{buildroot}%{_sysconfdir}/{sysconfig,cron.daily,prelink.conf.d}
+cp -a %{SOURCE3} %{buildroot}%{_sysconfdir}/cron.daily/prelink
+cp -a %{SOURCE4} %{buildroot}%{_sysconfdir}/sysconfig/prelink
+chmod 755 %{buildroot}%{_sysconfdir}/cron.daily/prelink
+chmod 644 %{buildroot}%{_sysconfdir}/{sysconfig/prelink,prelink.conf}
+cat > %{buildroot}%{_sysconfdir}/rpm/macros.prelink <<"EOF"
+# rpm-4.1 verifies prelinked libraries using a prelink undo helper.
+#       Note: The 2nd token is used as argv[0] and "library" is a
+#       placeholder that will be deleted and replaced with the appropriate
+#       library file path.
+%%__prelink_undo_cmd     /usr/sbin/prelink prelink -y library
+EOF
+chmod 644 %{buildroot}%{_sysconfdir}/rpm/macros.prelink
+
+mkdir -p %{buildroot}/var/{lib/misc,log/prelink}
+touch %{buildroot}/var/lib/misc/prelink.full
+touch %{buildroot}/var/lib/misc/prelink.quick
+touch %{buildroot}/var/lib/misc/prelink.force
+touch %{buildroot}/var/log/prelink/prelink.log
+
+%post
+touch /var/lib/misc/prelink.force
+
+%clean
+rm -rf %{buildroot}
+
+%files
+%defattr(-,root,root)
+%doc doc/prelink.pdf
+%verify(not md5 size mtime) %config(noreplace) %{_sysconfdir}/prelink.conf
+%verify(not md5 size mtime) %config(noreplace) %{_sysconfdir}/sysconfig/prelink
+%{_sysconfdir}/rpm/macros.prelink
+%dir %attr(0755,root,root) %{_sysconfdir}/prelink.conf.d
+%{_sysconfdir}/cron.daily/prelink
+%{_prefix}/sbin/prelink
+%{_prefix}/bin/execstack
+%{_mandir}/man8/prelink.8*
+%{_mandir}/man8/execstack.8*
+%attr(0644,root,root) %verify(not md5 size mtime) %ghost %config(missingok,noreplace) /var/lib/misc/prelink.full
+%attr(0644,root,root) %verify(not md5 size mtime) %ghost %config(missingok,noreplace) /var/lib/misc/prelink.quick
+%attr(0644,root,root) %verify(not md5 size mtime) %ghost %config(missingok,noreplace) /var/lib/misc/prelink.force
+%dir /var/log/prelink
+%attr(0644,root,root) %verify(not md5 size mtime) %ghost %config(missingok,noreplace) /var/log/prelink/prelink.log
+
+%changelog
+* Wed Mar 11 2009 Jakub Jelinek <jakub@redhat.com> 0.4.0-7
+- fix prelinking on ppc64
+
+* Tue Mar 10 2009 Jakub Jelinek <jakub@redhat.com> 0.4.0-6
+- BuildRequire glibc-static
+- rebuilt with gcc 4.4
+- sparc64 and ARM TLS support
+
+* Thu Feb 26 2009 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.4.0-5
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_11_Mass_Rebuild
+
+* Fri Aug 29 2008 Tom "spot" Callaway <tcallawa@redhat.com> 0.4.0-4
+- fix license tag
+
+* Tue Apr  8 2008 Jakub Jelinek <jakub@redhat.com> 0.4.0-3
+- BuildRequire libselinux-static rather than libselinux-devel (#440749)
+
+* Tue Oct  9 2007 Jakub Jelinek <jakub@redhat.com> 0.4.0-1
+- add support for -c /etc/prelink.conf.d/*.conf in prelink.conf (#244452)  
+- remove no longer existent directories from default prelink.conf (#248694)
+- reenabled prelink C++ optimizations which have not triggered any longer
+  since _ZT[IV]* moved into .data.rel.ro section from .data
+- fixed performance issues in C++ optimizations, especially on GCJ
+  CNI programs (#314051) 
+- other performance improvements, prelink -avmR after prelink -ua now
+  takes roughly 3m4s real time instead of 20m27s before
+- don't run TEXTREL tests if SELinux is enforcing (#245928)
+
+* Fri Dec  1 2006 Jakub Jelinek <jakub@redhat.com> 0.3.10-1
+- MIPS support (Richard Sandiford)
+- don't leave temporary files behind on prelink --verify failures (#199251)
+
+* Fri Oct 27 2006 Jakub Jelinek <jakub@redhat.com> 0.3.9-4
+- fix adjusting of .debug_ranges if end of range is at the end of some
+  section and there is padding before the following one
+
+* Mon Oct 23 2006 Jakub Jelinek <jakub@redhat.com> 0.3.9-3
+- rebuilt
+
+* Fri Jul 28 2006 Alexandre Oliva <aoliva@redhat.com> 0.3.9-2
+- avoid SEGFAULT when sorting cache entries (#197451)
+
+* Wed Jul 12 2006 Jakub Jelinek <jakub@redhat.com> 0.3.9-1
+- DT_GNU_HASH support
+- handle N_BNSYM and N_ENSYM stabs (#198203)
+- handle upgrades from prelink with smaller maxpagesize to prelink
+  with larger maxpagesize (#196941)
+
+* Wed Jun 21 2006 Jakub Jelinek <jakub@redhat.com> 0.3.8-1
+- fix -q mode canonicalization fix, speed up filename canonicalization
+  by caching canonicalization for directories (#145983, #188062)
+- remove bogus e_shoff assertion check (#194016)
+- move prelink log file to /var/log/prelink/prelink.log (#194473)
+- increase x86-64 maxpagesize to 2MB
+
+* Mon May 22 2006 Jakub Jelinek <jakub@redhat.com> 0.3.7-1
+- in -q mode, recheck the canonicalized filename to avoid
+  overwriting symlinks with regular files (#145983, #188062)
+- allow prelinking of binaries with .tbss section
+
+* Mon Feb 13 2006 Jakub Jelinek <jakub@redhat.com> 0.3.6-3
+- rebuilt again, disable -Wl,-z,nocopyreloc tests on x86_64,
+  nocopyreloc really doesn't work on this platform (#180552)
+
+* Wed Dec 12 2005 Jakub Jelinek <jakub@redhat.com> 0.3.6-2
+- rebuilt with GCC 4.1
+- link against newer glibc to fix MALLOC_PERTURB_ bug on 64-bit
+  arches
+
+* Thu Sep  1 2005 Jakub Jelinek <jakub@redhat.com> 0.3.6-1
+- remove kernel requires - installed kernel doesn't imply running
+  kernel anyway and in FC5 kernels older than 2.4.20 can't be used
+  anyway, as LinuxThreads are no longer included
+- don't relocate stabs N_{B,D,}SLINE (reported by Ashley Pittman)
+
+* Fri Jul 29 2005 Jakub Jelinek <jakub@redhat.com> 0.3.5-2
+- on ppc32 handle -mbss-plt .got sections created with -msecure-plt
+  capable binutils (#164615)
+
+* Fri Jun 10 2005 Jakub Jelinek <jakub@redhat.com> 0.3.5-1
+- support for ppc32 -msecure-plt libraries and binaries
+- don't crash if d_tag is invalid (#155605)
+- rebuilt against robustified libelf (CAN-2005-1704)
+- fix handling of libraries and binaries given on command
+  line without any / characters in the filename
+
+* Mon Mar 14 2005 Jakub Jelinek <jakub@redhat.com> 0.3.4-3
+- fix relocation of .debug_loc (#150194)
+
+* Sat Mar  5 2005 Jakub Jelinek <jakub@redhat.com> 0.3.4-2
+- rebuilt with GCC 4
+
+* Mon Feb  7 2005 Jakub Jelinek <jakub@redhat.com> 0.3.4-1
+- fix prelink -uo when linked against libselinux (#146637)
+  and when the -o argument filename is on a different filesystem
+  than the object that needs undoing
+
+* Tue Nov 23 2004 Jakub Jelinek <jakub@redhat.com> 0.3.3-1
+- if layout code needs to re-prelink some library, make sure
+  all libraries that depend on it are re-prelinked too (#140081)
+- add several more checks before deciding it is ok to prelink a binary
+  (even if another bug like #140081 was in, these checks should hopefully
+  catch it and refuse to (re-)prelink the binary)
+- added new PRELINK_NONRPM_CHECK_INTERVAL variable to %{_sysconfdir}/prelink,
+  defaulting to 7 days.  Prelink nightly job will not do anything
+  if that interval has not elapsed since last prelinking and
+  and the rpm database has not been modified since that prelinking.
+  This is useful if you rely on rpm/up2date/yum/apt-rpm for library
+  and binary updates.  If you combine it with other means (installs
+  from source, tarballs etc.), you probably want to
+  set PRELINK_NONRPM_CHECK_INTERVAL=0.
+- update prelink man page (#126468)
+
+* Tue Oct 12 2004 Jakub Jelinek <jakub@redhat.com> 0.3.2-11
+- update PT_PHDR program header if present when adding new program
+  headers (#133734)
+
+* Sat Oct  2 2004 Jakub Jelinek <jakub@redhat.com> 0.3.2-10
+- support for non-absolute blacklist glob patterns (e.g. -b *.la)
+- cache information about non-prelinkable files (non-ELF, statically linked,
+  too small .dynamic, DT_TEXTREL with conflicts against it; #132056)
+- other speedups for prelink -aq
+- for --verify, make sure only read-only fd's are opened for the
+  unprelinked temporary file, otherwise a kernel might ETXTBUSY on it
+  (#133317)
+- change warning message if some object's dependencies can't be found
+- add buildrequires libselinux-devel and use %%{_tmppath} instead
+  of /var/tmp in Buildroot (#132879)
+
+* Wed Sep  8 2004 Jakub Jelinek <jakub@redhat.com> 0.3.2-8
+- handle overlapping .opd sections on ppc64
+
+* Tue Sep  7 2004 Jakub Jelinek <jakub@redhat.com> 0.3.2-7
+- fix warning messages if setting of security context fails
+
+* Wed Jul  7 2004 Jakub Jelinek <jakub@redhat.com> 0.3.2-6
+- change sed separator in testsuite scripts from | to , if \|
+  is present in regexps, as that invokes undefined behaviour
+  which changed between GNU sed 4.0.9 and 4.1
+
+* Wed Jul  7 2004 Jakub Jelinek <jakub@redhat.com> 0.3.2-5
+- skip vDSO in ldd /sbin/init output when determining if /sbin/telinit -u
+  should be run (#127350)
+
+* Tue Jun 15 2004 Elliot Lee <sopwith@redhat.com>
+- rebuilt
+
+* Thu May 20 2004 Jakub Jelinek <jakub@redhat.com> 0.3.2-3
+- 4 SPARC 64-bit fixes
+- use $CC instead of gcc when checking for TLS support in tls*.sh
+
+* Thu May 20 2004 Jakub Jelinek <jakub@redhat.com> 0.3.2-2
+- add 2 new TLS testcases (one that fails e.g. with glibc < 2.3.3-28
+  on IA-32)
+- SPARC TLS support
+
+* Wed May  5 2004 Jakub Jelinek <jakub@redhat.com> 0.3.2-1
+- fix cxx.c:68: find_cxx_sym: Assertive `n < ndeps' failed problem
+  on 32-bit architectures (#118522)
+- build prelink.cache into temporary file and atomically rename over
+  (#121109)
+
+* Wed Mar 17 2004 Jakub Jelinek <jakub@redhat.com> 0.3.1-2
+- unlink temporary files if renaming to the destination or setting of
+  security context failed (#118251)
+- fix bi-architecture prelinking (#118226)
+- if prelink called from the cron script fails, note the exit status
+  into /var/log/prelink.log
+
+* Thu Mar  4 2004 Jakub Jelinek <jakub@redhat.com> 0.3.1-1
+- add prelink documentation (PDF format)
+- fix assertion failures on PPC (.sdynbss related, #115925)
+- fix prelink --help (#115202)
+- avoid free on uninitialized variable in one error path (#117332)
+- s/i386/%%{ix86}/ to make mharris happy
+
+* Mon Feb 16 2004 Jakub Jelinek <jakub@redhat.com> 0.3.0-21
+- fix prelink abort in certain cases where a new PT_LOAD segment
+  needs to be added (seen on AMD64)
+
+* Thu Jan 29 2004 Jakub Jelinek <jakub@redhat.com> 0.3.0-20
+- clearify message about unlisted dependencies
+- don't do SELinux context copying if is_selinux_enabled () < 0
+
+* Tue Jan 27 2004 Jakub Jelinek <jakub@redhat.com> 0.3.0-19
+- refuse to prelink objects whose dependencies as reported by
+  ldd don't include all dependencies transitively (this can
+  happen when using RPATH and a shared library with the same
+  SONAME exists both in that RPATH and either another RPATH
+  or standard library directories)
+- add testcase for this
+- rework .dynsym/.symtab STT_SECTION translation, so that it works
+  with binutils which put only sections not generated by the linker
+  into .dynsym for shared libraries
+- fix make check, so that it is not confused by 2.6.x kernel
+  VDSOs
+
+* Thu Jan 15 2004 Jakub Jelinek <jakub@redhat.com> 0.3.0-18
+- allow R_*_JU?MP_SLOT relocs to point also into .got.plt
+  sections on IA32/AMD64/ARM/s390/s390x/SH
+
+* Tue Dec  9 2003 Jakub Jelinek <jakub@redhat.com> 0.3.0-17
+- set SELinux security context immediately before renaming,
+  not before
+
+* Tue Nov 18 2003 Jakub Jelinek <jakub@redhat.com> 0.3.0-15
+- blacklist support
+- use FTW_ACTIONRETVAL if available to avoid even stating of
+  files in blacklisted directory trees
+- SELinux support
+
+* Tue Oct 28 2003 Jakub Jelinek <jakub@redhat.com> 0.3.0-13
+- added execstack.8 manpage
+- changed order of columns in execstack --query output
+
+* Tue Oct 28 2003 Jakub Jelinek <jakub@redhat.com> 0.3.0-12
+- added execstack tool
+- added -o option, to be used together with -u
+- free temp_filename in close_dso
+
+* Mon Oct 27 2003 Jakub Jelinek <jakub@redhat.com> 0.3.0-11
+- fix adjustement of DT_VALRNGLO .. DT_VALRNGHI and
+  DT_ADDRRNGLO .. DT_ADDRRNGHI dynamic tags when relocating shared
+  libraries
+- never adjust p_vaddr/p_paddr/p_offset of PT_GNU_STACK segment
+- allow shell wildcards in %{_sysconfdir}/prelink.conf
+- fix REL->RELA conversion of shared libraries if .rel.dyn
+  or .rel.plt are last sections in readonly PT_LOAD segment
+- force full reprelinking on prelink upgrades (well, first time
+  the cron job is run after the upgrade)
+- require coreutils, findutils, util-linux, gawk and grep
+
+* Fri Oct 24 2003 Jakub Jelinek <jakub@redhat.com> 0.3.0-10
+- avoid removing PT_GNU_STACK segment if decreasing first PT_LOAD segment's
+  p_vaddr on IA-32
+
+* Mon Oct 13 2003 Jakub Jelinek <jakub@redhat.com> 0.3.0-9
+- avoid prelink crash if first dependency is to be prelinked because
+  of address space overlaps
+
+* Thu Oct  9 2003 Jakub Jelinek <jakub@redhat.com> 0.3.0-8
+- use /var/lib/misc/prelink.full instead of /var/run/prelink.full for last
+  full prelink timestamp (#106721)
+- warn about UPX compressed binaries or libraries/binaries without section
+  headers (neither can be prelinked obviously)
+
+* Mon Oct  6 2003 Jakub Jelinek <jakub@redhat.com> 0.3.0-7
+- don't rely on malloc/calloc/realloc with size 0 returning a unique pointer
+- fix testsuite, so that it works even if installed glibc/libstdc++
+  is already prelinked
+
+* Wed Sep 17 2003 Jakub Jelinek <jakub@redhat.com> 0.3.0-6
+- fix comment in %{_sysconfdir}/sysconfig/prelink (#106217)
+
+* Tue Sep  2 2003 Jakub Jelinek <jakub@redhat.com> 0.3.0-5
+- fix prelink segfault on -z nocombreloc libraries (#103404)
+- run one make check round with -Wl,-z,nocombreloc to test handling
+  of nocombreloc binaries and libraries
+
+* Fri Aug 15 2003 Jakub Jelinek <jakub@redhat.com> 0.3.0-4
+- redirect prelink's stderr from the cron job to prelink.log (#102456)
+
+* Mon Aug 11 2003 Jakub Jelinek <jakub@redhat.com> 0.3.0-3
+- fix DT_CHECKSUM computation - do STT_LOCAL symbol frobbing and .mdebug
+  updates write_dso would do also before checksum computation (#89953)
+
+* Fri Aug  8 2003 Jakub Jelinek <jakub@redhat.com> 0.3.0-2
+- avoid assertion failures when changing PROGBITS .bss back into
+  NOBITS .bss (#101813)
+- add 2 new tests for it
+
+* Tue Aug  5 2003 Jakub Jelinek <jakub@redhat.com> 0.3.0-1
+- run prelink from cron automatically, add %{_sysconfdir}/sysconfig/prelink
+  to configure it
+- update manual page
+
+* Tue Jul  1 2003 Jakub Jelinek <jakub@redhat.com> 0.2.1-2
+- fix a thinko in the library path checking code
+- change R_386_GLOB_DAT into R_386_32 in .gnu.conflict, similarly
+  R_X86_64_GLOB_DAT and R_X86_64_64
+- fix a bug in find_free_space which caused
+  "section file offsets not monotonically increasing" errors on some
+  IA-32 binaries
+- add --md5 and --sha options
+- use mmap during --verify if possible
+- add */lib64 directories to prelink.conf
+
+* Mon Jun 30 2003 Jakub Jelinek <jakub@redhat.com> 0.2.1-1
+- make sure binaries prelinked for the second and later time without
+  unprelinking in between verify correctly
+- make sure DT_CHECKSUM computation is the same for newly prelinked
+  and second or later time prelinked libraries
+- dwarf2 abbrev hash bugfix
+- don't allow prelinking libraries outside directories specified
+  in config file or on the command line
+- several new tests for reprelinking
+- pack non-alloced sections and section header table tightly after the
+  last alloced section
+
+* Wed Jun 18 2003 Jakub Jelinek <jakub@redhat.com> 0.2.0-28
+- finish and enable ppc64
+- fix ppc BR{,N}TAKEN reloc handling
+- fix up sh_offset values of zero-sized or SHT_NOBITS section
+  if ld messed them up
+- issue error about bogus library dependency chains instead of
+  segfaulting (plus testcases for it)
+
+* Fri Jun 13 2003 Jakub Jelinek <jakub@redhat.com> 0.2.0-27
+- add --quick mode
+- new test for --quick mode and also reprelinking of binary against
+  upgraded shared library which needs more conflicts
+
+* Mon Jun  2 2003 Jakub Jelinek <jakub@redhat.com> 0.2.0-26
+- don't segfault in C++ optimizations if a conflict from undefined
+  to defined value is seen
+- some more ppc64 work
+
+* Fri May 30 2003 Jakub Jelinek <jakub@redhat.com> 0.2.0-25
+- exec-shield support
+- with -R, don't randomize just base address from which all libs
+  are layed out, but also slightly randomize order of libraries
+  in the layout queue
+- add check-harder and check-cycle makefile goals in testsuite/,
+  use it during rpm building
+
+* Fri May 23 2003 Jakub Jelinek <jakub@redhat.com> 0.2.0-24
+- optimize out conflicts in G++ 3+ virtual tables if they are just
+  because some method has been called from a binary and thus there
+  is a .plt slot in the binary. This change not only kills lots of conflicts
+  on some KDE programs, but also should speed up runtime (not just startup
+  time), since the hop through .plt is bypassed
+- added new C++ test
+- fix a bug in ppc64 fixup .plt code
+
+* Thu May 22 2003 Jakub Jelinek <jakub@redhat.com> 0.2.0-23
+- when updating dynamic tags for executable after section reshuffling,
+  check section type as well, so that 0 sized sections don't get the
+  tags attached instead of the proper ones
+- when an address space conflict is found between libraries for the same
+  executable during layouting, check properly for all remaining conflicts
+  as well
+
+* Thu May 15 2003 Jakub Jelinek <jakub@redhat.com> 0.2.0-22
+- don't adjust DT_REL{,A} if it is 0
+- allow prelinking of libraries with no dependencies
+- fix handling of libraries with no lazy relocs, no normal relocs or no
+  relocs at all
+- some new tests
+- fix SH (Daniel Jacobowitz)
+
+* Mon May  5 2003 Jakub Jelinek <jakub@redhat.com> 0.2.0-21
+- fix prelink on AMD64
+- 2 new testcases
+- fix for debugging prelink_entry_dump/restore
+
+* Fri May  2 2003 Jakub Jelinek <jakub@redhat.com> 0.2.0-20
+- ppc TLS
+- some ppc64 work
+- avoid using trampolines for nested functions
+- fix typo in prelink man page (#89247)
+
+* Tue Apr 15 2003 Jakub Jelinek <jakub@redhat.com> 0.2.0-19
+- fix find_readonly_space bug which caused doxygen not to be prelinked
+
+* Mon Feb 17 2003 Jakub Jelinek <jakub@redhat.com> 0.2.0-18
+- fix section indices in .symtab if non-alloced sections weren't
+  originally monotonically increasing
+- s390, s390x and Alpha TLS support
+
+* Mon Feb 10 2003 Jakub Jelinek <jakub@redhat.com> 0.2.0-17
+- never try to prelink or relocate stripped-to-file debuginfo
+
+* Tue Jan 21 2003 Jakub Jelinek <jakub@redhat.com> 0.2.0-16
+- x86-64 TLS support
+- added one more tls testcase
+
+* Fri Dec 13 2002 Jakub Jelinek <jakub@redhat.com> 0.2.0-15
+- hopefully finished IA-32 TLS support
+- require elfutils 0.72 for various data-swapping fixes
+
+* Wed Dec 11 2002 Jakub Jelinek <jakub@redhat.com> 0.2.0-14
+- rebuilt against elfutils 0.69 to fix a make check failure on Alpha
+
+* Mon Dec  9 2002 Jakub Jelinek <jakub@redhat.com> 0.2.0-13
+- use ELF_F_PERMISSIVE if defined
+- be permissive even when doing --reloc-only
+- fix up .plt section sh_entsize on Alpha
+
+* Wed Dec  4 2002 Jakub Jelinek <jakub@redhat.com> 0.2.0-12
+- some more fixes for elfutils
+
+* Tue Dec  3 2002 Jakub Jelinek <jakub@redhat.com> 0.2.0-11
+- make it work with elfutils instead of libelf 0.[78]
+- update to newer auto*/libtool
+- some more steps towards TLS support, at least --reloc-only should work
+
+* Thu Oct  3 2002 Jakub Jelinek <jakub@redhat.com> 0.2.0-10
+- x86-64, s390x and testsuite fixes
+
+* Sun Sep 29 2002 Jakub Jelinek <jakub@redhat.com> 0.2.0-9
+- enable on ppc and x86_64
+- fix ppc far PLT slot prelink
+- support --undo on ppc
+- for bug-compatibility with some unnamed OS changed R_SPARC_RELATIVE
+  --undo
+- tiny steps towards TLS support on IA-32, more will come
+
+* Tue Aug 27 2002 Jakub Jelinek <jakub@redhat.com> 0.2.0-8
+- avoid putting garbage into executable's .gnu.liblist sh_link
+  if we did not have to grow .dynstr
+- don't segfault on bogus sh_link and sh_info values (#72705)
+
+* Mon Aug 26 2002 Jakub Jelinek <jakub@redhat.com> 0.2.0-7
+- when growing allocated shared lib sections (for REL->RELA
+  conversion), make sure !PF_W and PF_W segments don't end up
+  on the same page
+- when finding space for sections in an executable, make sure
+  it is not included in between two reloc sections
+- for non-zero SHN_ABS symbols on 32-bit arches mask high
+  32-bits of st_value (libelf 0.8.x is strict here)
+
+* Fri Aug 23 2002 Jakub Jelinek <jakub@redhat.com> 0.2.0-6
+- make it work with libelf 0.8.2
+
+* Fri Jun 21 2002 Tim Powers <timp@redhat.com>
+- automated rebuild
+
+* Fri Jun 21 2002 Jakub Jelinek <jakub@redhat.com> 0.2.0-4
+- add %{_sysconfdir}/rpm/macros.prelink
+
+* Mon Jun 17 2002 Jakub Jelinek <jakub@redhat.com> 0.2.0-1
+- added --undo and --verify mode
+- new architectures s390, s390x, arm, sh
+- handle binaries/shared libraries with non-allocated sections
+  without monotonically increasing sh_offsets
+- handle .sbss and .sdynbss
+- fixed a bug in 64-bit LE/BE read routines
+- removed .rel{,a}.dyn reloc conversion/sorting, it was duplicating
+  ld's -z combreloc and complicated lots of things
+- fixed STB_LOCAL/STT_SECTION symbol adjusting
+- use mkstemp for temporary files, allow --verify for binaries/libs
+  on read-only filesystems
+- added DWARF-2 .debug_ranges adjustement, special case GCC's
+  "set base to 0 and make things absolute instead of relative" trick
+- allow arches to override default layout mechanism (for ppc)
+- added some new tests, test --undo and --verify modes in the testsuite
+- alpha: adjust what R_ALPHA_GLOB_DAT points to too
+- i386: apply _32 and _PC32 REL relocs, as apply_rel can be called
+  for C++ optimizations before REL->RELA conversion
+- ppc: layout strategy to satisfy ppc lib location preferences
+- sparc64: handle R_SPARC_DISP64
+- x86-64: adjust what R_X86_64_RELATIVE points to too
+- link prelink statically, esp. because of --verify mode
+- run make check during build process
+
+* Mon Oct  1 2001 Jakub Jelinek <jakub@redhat.com> 0.1.3-7
+- fix layout code so that -R works
+- on IA-32, when there are no R_386_PC32 relocs and no R_386_32 relocs
+  with non-zero addend (= memory content), don't convert REL->RELA,
+  only switch R_386_32 relocs to R_386_GLOB_DAT
+- support creating a new PT_LOAD segment if necessary, if SHT_NOBITS
+  sections are small, instead of adding new PT_LOAD segment just add file
+  backing to those NOBITS sections
+- added testsuite
+- new supported architectures (Alpha including .mdebug section support,
+  Sparc, Sparc 64-bit, X86_64 (the last one untested)), beginning of PPC
+  support
+
+* Thu Sep  6 2001 Jakub Jelinek <jakub@redhat.com> 0.1.3-6
+- make sure lib base is always ELF page size aligned
+
+* Wed Aug 29 2001 Jakub Jelinek <jakub@redhat.com> 0.1.3-5
+- fix sorting of .rel*.dyn sections, so that all RELATIVE relocs really
+  come first
+- when DT_RELCOUNT already exists and conversion REL->RELA is done,
+  convert it into DT_RELACOUNT
+- set conflict lookupent and conflictent to 0 for undefineds
+- don't bother with DT_REL*COUNT for apps, they cannot have any RELATIVE
+  relocs
+
+* Tue Aug 28 2001 Jakub Jelinek <jakub@redhat.com> 0.1.3-4
+- brown paper bag time: when determining if conversion from REL to RELA
+  is needed, check all non-PLT rel sections, including last.
+  This caused prelinking to fail with -z combreloc compiled libraries.
+
+* Mon Aug 27 2001 Jakub Jelinek <jakub@redhat.com> 0.1.3-3
+- don't use .gnu.reloc section, use .rel.dyn or .rela.dyn instead
+- put RELATIVE relocs first, not last, so that DT_REL{,A}COUNT
+  works
+- put in updated glibc patch
+- no need for special binutils patch - all is done in the -z combreloc
+  patchset
+
+* Tue Jul 24 2001 Jakub Jelinek <jakub@redhat.com> 0.1.3-2
+- use the new DT_GNU_CONFLICT/DT_GNU_LIBLIST/SHT_GNU_LIBLIST constants
+- unlink *.#prelink# files if necessary
+
+* Wed Jul 18 2001 Jakub Jelinek <jakub@redhat.com> 0.1.3-1
+- fix layout.c
+- create .gnu.prelink_undo section, --undo and --verify modes will use that
+- some more C++ specific optimizations
+
+* Fri Jul 13 2001 Jakub Jelinek <jakub@redhat.com> 0.1.2-1
+- bail out early if ELF object does not have sh_offsets
+  monotonically increasing
+- disallow prelinking if there are conflicts against read-only
+  segments in shared libraries (ie. non-pic shared libraries
+  - this is better than bailing out for all non-pic shared libraries)
+- add some C++ specific optimizations to reduce number of conflicts,
+  more to come
+
+* Tue Jul 10 2001 Jakub Jelinek <jakub@redhat.com> 0.1.1-2
+- fix incremental prelinking
+
+* Tue Jul 10 2001 Jakub Jelinek <jakub@redhat.com> 0.1.1-1
+- relocate stabs and dwarf-2 debugging formats
+- support both --all and incremental prelinking
+- handle hardlinks
+- limit to libraries in %{_sysconfdir}/prelink.conf directories or
+  directories from command line
+
+* Tue Jul  3 2001 Jakub Jelinek <jakub@redhat.com> 0.1.0-1
+- new package
diff --git a/debian/rules b/debian/rules
new file mode 100755 (executable)
index 0000000..2957a61
--- /dev/null
@@ -0,0 +1,96 @@
+#!/usr/bin/make -f
+# Sample debian/rules that uses debhelper.
+# GNU copyright 1997 to 1999 by Joey Hess.
+
+DISTRIBUTION := SLP
+SHELL+= -e
+
+include /usr/share/dpatch/dpatch.make
+
+#export DH_VERBOSE=1
+
+objdir := $(CURDIR)/obj
+D := $(CURDIR)/debian/prelink
+E := $(CURDIR)/debian/execstack
+
+configure: configure-stamp
+configure-stamp:
+       dh_testdir
+
+       mkdir -p $(objdir)
+       cd $(objdir) && ../configure \
+               --prefix=/ --mandir=/usr/share/man/ --disable-shared \
+               --disable-libtool-lock --disable-dependency-tracking
+
+       touch $@
+
+build: patch build-stamp
+build-stamp: configure-stamp 
+       dh_testdir
+
+       cd $(objdir) && $(MAKE)
+       
+       # Commented out until a stable test suite has been added
+       #@echo "====================TESTING========================="
+       #cd $(objdir) && $(MAKE) -C testsuite check-harder
+       #cd $(objdir) && $(MAKE) -C testsuite check-cycle
+       #@echo "====================TESTING END====================="
+
+       touch $@
+
+clean:  unpatch
+       dh_testdir
+       dh_testroot
+       rm -f build-stamp configure-stamp
+
+       rm -rf $(objdir)
+
+       dh_clean
+
+install: build
+       dh_testdir
+       dh_testroot
+       dh_clean -k
+
+ifeq ($(DISTRIBUTION),SLP)
+       dh_installdirs etc/ usr/sbin/
+else
+       dh_installdirs etc/ etc/default/ usr/sbin/
+endif
+       cp $(objdir)/src/prelink $(objdir)/src/execstack $D/usr/sbin/
+ifneq ($(DISTRIBUTION),SLP)
+       mv $D/usr/sbin/prelink  $D/usr/sbin/prelink.bin
+       cp $(CURDIR)/debian/prelink.sh $D/usr/sbin/prelink
+endif
+       chmod 0755 $D/usr/sbin/prelink
+       cp debian/prelink.conf $D/etc/
+       dh_installdirs -pexecstack usr/sbin/
+       mv $D/usr/sbin/execstack $E/usr/sbin/
+
+binary-arch: build install
+       dh_testdir
+       dh_testroot
+       dh_installchangelogs
+       ( cat debian/prelink.spec || \
+               printf "\n%%changelog\nNo upstream changelog\n" ) | \
+       sed -e '1,/^%changelog$$/d' \
+               > $D/usr/share/doc/prelink/changelog
+       dh_installdocs TODO doc/prelink.pdf
+       dh_installman doc/prelink.8 debian/prelink.bin.8
+       dh_installman -pexecstack doc/execstack.8
+ifneq ($(DISTRIBUTION),SLP)
+       dh_installcron
+       cp debian/prelink.default $D/etc/default/prelink
+endif
+       dh_strip
+       dh_link
+       dh_compress
+       dh_fixperms
+       dh_installdeb
+       dh_shlibdeps
+       dh_gencontrol
+       dh_builddeb
+
+binary: binary-arch
+
+.PHONY: build clean binary-indep binary-arch binary install configure
diff --git a/depcomp b/depcomp
new file mode 100755 (executable)
index 0000000..368e3be
--- /dev/null
+++ b/depcomp
@@ -0,0 +1,436 @@
+#! /bin/sh
+
+# depcomp - compile a program generating dependencies as side-effects
+# Copyright 1999, 2000 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
+
+if test -z "$depmode" || test -z "$source" || test -z "$object"; then
+  echo "depcomp: Variables source, object and depmode must be set" 1>&2
+  exit 1
+fi
+# `libtool' can also be set to `yes' or `no'.
+
+if test -z "$depfile"; then
+   base=`echo "$object" | sed -e 's,^.*/,,' -e 's,\.\([^.]*\)$,.P\1,'`
+   dir=`echo "$object" | sed 's,/.*$,/,'`
+   if test "$dir" = "$object"; then
+      dir=
+   fi
+   # FIXME: should be _deps on DOS.
+   depfile="$dir.deps/$base"
+fi
+
+tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
+
+rm -f "$tmpdepfile"
+
+# Some modes work just like other modes, but use different flags.  We
+# parameterize here, but still list the modes in the big case below,
+# to make depend.m4 easier to write.  Note that we *cannot* use a case
+# here, because this file can only contain one case statement.
+if test "$depmode" = hp; then
+  # HP compiler uses -M and no extra arg.
+  gccflag=-M
+  depmode=gcc
+fi
+
+if test "$depmode" = dashXmstdout; then
+   # This is just like dashmstdout with a different argument.
+   dashmflag=-xM
+   depmode=dashmstdout
+fi
+
+case "$depmode" in
+gcc3)
+## gcc 3 implements dependency tracking that does exactly what
+## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
+## it if -MD -MP comes after the -MF stuff.  Hmm.
+  "$@" -MT "$object" -MD -MP -MF "$tmpdepfile"
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  mv "$tmpdepfile" "$depfile"
+  ;;
+
+gcc)
+## There are various ways to get dependency output from gcc.  Here's
+## why we pick this rather obscure method:
+## - Don't want to use -MD because we'd like the dependencies to end
+##   up in a subdir.  Having to rename by hand is ugly.
+##   (We might end up doing this anyway to support other compilers.)
+## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
+##   -MM, not -M (despite what the docs say).
+## - Using -M directly means running the compiler twice (even worse
+##   than renaming).
+  if test -z "$gccflag"; then
+    gccflag=-MD,
+  fi
+  "$@" -Wp,"$gccflag$tmpdepfile"
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
+## The second -e expression handles DOS-style file names with drive letters.
+  sed -e 's/^[^:]*: / /' \
+      -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
+## This next piece of magic avoids the `deleted header file' problem.
+## The problem is that when a header file which appears in a .P file
+## is deleted, the dependency causes make to die (because there is
+## typically no way to rebuild the header).  We avoid this by adding
+## dummy dependencies for each header file.  Too bad gcc doesn't do
+## this for us directly.
+  tr ' ' '
+' < "$tmpdepfile" |
+## Some versions of gcc put a space before the `:'.  On the theory
+## that the space means something, we add a space to the output as
+## well.
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+hp)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+sgi)
+  if test "$libtool" = yes; then
+    "$@" "-Wp,-MDupdate,$tmpdepfile"
+  else
+    "$@" -MDupdate "$tmpdepfile"
+  fi
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+
+  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
+    echo "$object : \\" > "$depfile"
+
+    # Clip off the initial element (the dependent).  Don't try to be
+    # clever and replace this with sed code, as IRIX sed won't handle
+    # lines with more than a fixed number of characters (4096 in
+    # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
+    # the IRIX cc adds comments like `#:fec' to the end of the
+    # dependency line.
+    tr ' ' '
+' < "$tmpdepfile" \
+    | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
+    tr '
+' ' ' >> $depfile
+    echo >> $depfile
+
+    # The second pass generates a dummy entry for each header file.
+    tr ' ' '
+' < "$tmpdepfile" \
+   | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
+   >> $depfile
+  else
+    # The sourcefile does not contain any dependencies, so just
+    # store a dummy comment line, to avoid errors with the Makefile
+    # "include basename.Plo" scheme.
+    echo "#dummy" > "$depfile"
+  fi
+  rm -f "$tmpdepfile"
+  ;;
+
+aix)
+  # The C for AIX Compiler uses -M and outputs the dependencies
+  # in a .u file.  This file always lives in the current directory.
+  # Also, the AIX compiler puts `$object:' at the start of each line;
+  # $object doesn't have directory information.
+  stripped=`echo "$object" | sed -e 's,^.*/,,' -e 's/\(.*\)\..*$/\1/'`
+  tmpdepfile="$stripped.u"
+  outname="$stripped.o"
+  if test "$libtool" = yes; then
+    "$@" -Wc,-M
+  else
+    "$@" -M
+  fi
+
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+
+  if test -f "$tmpdepfile"; then
+    # Each line is of the form `foo.o: dependent.h'.
+    # Do two passes, one to just change these to
+    # `$object: dependent.h' and one to simply `dependent.h:'.
+    sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
+    sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
+  else
+    # The sourcefile does not contain any dependencies, so just
+    # store a dummy comment line, to avoid errors with the Makefile
+    # "include basename.Plo" scheme.
+    echo "#dummy" > "$depfile"
+  fi
+  rm -f "$tmpdepfile"
+  ;;
+
+tru64)
+   # The Tru64 AIX compiler uses -MD to generate dependencies as a side
+   # effect.  `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
+   # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put 
+   # dependencies in `foo.d' instead, so we check for that too.
+   # Subdirectories are respected.
+
+   base=`echo "$object" | sed -e 's/\.o$/.d/' -e 's/\.lo$/.d/'`
+   tmpdepfile1="$base.o.d"
+   tmpdepfile2="$base.d"
+   if test "$libtool" = yes; then
+      "$@" -Wc,-MD
+   else
+      "$@" -MD
+   fi
+
+   stat=$?
+   if test $stat -eq 0; then :
+   else
+      rm -f "$tmpdepfile1" "$tmpdepfile2"
+      exit $stat
+   fi
+
+   if test -f "$tmpdepfile1"; then
+      tmpdepfile="$tmpdepfile1"
+   else
+      tmpdepfile="$tmpdepfile2"
+   fi
+   if test -f "$tmpdepfile"; then
+      sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
+      # That's a space and a tab in the [].
+      sed -e 's,^.*\.[a-z]*:[  ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
+   else
+      echo "#dummy" > "$depfile"
+   fi
+   rm -f "$tmpdepfile"
+   ;;
+
+#nosideeffect)
+  # This comment above is used by automake to tell side-effect
+  # dependency tracking mechanisms from slower ones.
+
+dashmstdout)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the proprocessed file to stdout, regardless of -o,
+  # because we must use -o when running libtool.
+  test -z "$dashmflag" && dashmflag=-M
+  ( IFS=" "
+    case " $* " in
+    *" --mode=compile "*) # this is libtool, let us make it quiet
+      for arg
+      do # cycle over the arguments
+        case "$arg" in
+       "--mode=compile")
+         # insert --quiet before "--mode=compile"
+         set fnord "$@" --quiet
+         shift # fnord
+         ;;
+       esac
+       set fnord "$@" "$arg"
+       shift # fnord
+       shift # "$arg"
+      done
+      ;;
+    esac
+    "$@" $dashmflag | sed 's:^[^:]*\:[         ]*:'"$object"'\: :' > "$tmpdepfile"
+  ) &
+  proc=$!
+  "$@"
+  stat=$?
+  wait "$proc"
+  if test "$stat" != 0; then exit $stat; fi
+  rm -f "$depfile"
+  cat < "$tmpdepfile" > "$depfile"
+  tr ' ' '
+' < "$tmpdepfile" | \
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+dashXmstdout)
+  # This case only exists to satisfy depend.m4.  It is never actually
+  # run, as this mode is specially recognized in the preamble.
+  exit 1
+  ;;
+
+makedepend)
+  # X makedepend
+  (
+    shift
+    cleared=no
+    for arg in "$@"; do
+      case $cleared in no)
+        set ""; shift
+       cleared=yes
+      esac
+      case "$arg" in
+        -D*|-I*)
+         set fnord "$@" "$arg"; shift;;
+       -*)
+         ;;
+       *)
+         set fnord "$@" "$arg"; shift;;
+      esac
+    done
+    obj_suffix="`echo $object | sed 's/^.*\././'`"
+    touch "$tmpdepfile"
+    ${MAKEDEPEND-makedepend} 2>/dev/null -o"$obj_suffix" -f"$tmpdepfile" "$@"
+  ) &
+  proc=$!
+  "$@"
+  stat=$?
+  wait "$proc"
+  if test "$stat" != 0; then exit $stat; fi
+  rm -f "$depfile"
+  cat < "$tmpdepfile" > "$depfile"
+  sed '1,2d' "$tmpdepfile" | tr ' ' '
+' | \
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile" "$tmpdepfile".bak
+  ;;
+
+cpp)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the proprocessed file to stdout, regardless of -o,
+  # because we must use -o when running libtool.
+  ( IFS=" "
+    case " $* " in
+    *" --mode=compile "*)
+      for arg
+      do # cycle over the arguments
+        case $arg in
+       "--mode=compile")
+         # insert --quiet before "--mode=compile"
+         set fnord "$@" --quiet
+         shift # fnord
+         ;;
+       esac
+       set fnord "$@" "$arg"
+       shift # fnord
+       shift # "$arg"
+      done
+      ;;
+    esac
+    "$@" -E |
+    sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
+    sed '$ s: \\$::' > "$tmpdepfile"
+  ) &
+  proc=$!
+  "$@"
+  stat=$?
+  wait "$proc"
+  if test "$stat" != 0; then exit $stat; fi
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  cat < "$tmpdepfile" >> "$depfile"
+  sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+msvisualcpp)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the proprocessed file to stdout, regardless of -o,
+  # because we must use -o when running libtool.
+  ( IFS=" "
+    case " $* " in
+    *" --mode=compile "*)
+      for arg
+      do # cycle over the arguments
+        case $arg in
+       "--mode=compile")
+         # insert --quiet before "--mode=compile"
+         set fnord "$@" --quiet
+         shift # fnord
+         ;;
+       esac
+       set fnord "$@" "$arg"
+       shift # fnord
+       shift # "$arg"
+      done
+      ;;
+    esac
+    for arg
+    do
+      case "$arg" in
+      "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
+       set fnord "$@"
+       shift
+       shift
+       ;;
+      *)
+       set fnord "$@" "$arg"
+       shift
+       shift
+       ;;
+      esac
+    done
+    "$@" -E |
+    sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
+  ) &
+  proc=$!
+  "$@"
+  stat=$?
+  wait "$proc"
+  if test "$stat" != 0; then exit $stat; fi
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::   \1 \\:p' >> "$depfile"
+  echo "       " >> "$depfile"
+  . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+none)
+  exec "$@"
+  ;;
+
+*)
+  echo "Unknown depmode $depmode" 1>&2
+  exit 1
+  ;;
+esac
+
+exit 0
diff --git a/doc/Makefile.am b/doc/Makefile.am
new file mode 100644 (file)
index 0000000..45f4757
--- /dev/null
@@ -0,0 +1,42 @@
+## Process this file with automake to create Makefile.in
+
+AUTOMAKE_OPTIONS = 1.4 gnu
+
+man_MANS = prelink.8 execstack.8
+EXTRA_DIST = prelink.8 execstack.8 prelink.conf
+PDFLATEXINPUTS = TEXINPUTS_pdflatex=.:$(srcdir):`kpsewhich --progname=pdflatex --show-path=cnf.pdflatex`
+LATEXINPUTS = TEXINPUTS_latex=.:$(srcdir):`kpsewhich --progname=latex --show-path=cnf.latex`
+
+noinst_DATA = prelink.pdf
+pics = gap bss basemove newseg dso1 dso2 dso3
+
+prelink.pdf: prelink.tex $(pics:=.fig) linuxtag.sty \
+            prelinklisting.sty lineno.sty glossary.conf
+       $(MAKE) $(pics:=.pdf)
+       $(PDFLATEXINPUTS) pdflatex $<
+       makeindex -s $(srcdir)/glossary.conf -o prelink.gls prelink.glo
+       if grep -q Rerun prelink.log; then $(PDFLATEXINPUTS) pdflatex $<; fi
+       thumbpdf $@ && $(PDFLATEXINPUTS) pdflatex $<
+       mv $@ prelinkin.pdf
+       pdfopt prelinkin.pdf $@
+       rm prelinkin.pdf
+
+prelink.ps: prelink.dvi
+       dvips $< -o $@
+
+prelink.dvi: prelink.tex $(pics:=.eps)
+       $(LATEXINPUTS) latex $<
+       if grep -q Rerun prelink.log; then $(LATEXINPUTS) latex $<; fi
+
+SUFFIXES = .fig .eps .pdf
+
+.fig.eps:
+       fig2dev -L eps $^ $@
+
+.fig.pdf:
+       fig2dev -L pdf $^ $@
+
+CLEANFILES = $(pics:=.eps) $(pics:=.pdf) prelink.aux prelink.dvi \
+            prelink.log prelink.mtc prelink.mtc1 prelink.pdf prelink.ps \
+            prelink.glo prelink.idx prelink.out prelink.tpt prelink.ilg \
+            prelink.gls prelink.toc
diff --git a/doc/Makefile.in b/doc/Makefile.in
new file mode 100644 (file)
index 0000000..678002b
--- /dev/null
@@ -0,0 +1,323 @@
+# Makefile.in generated by automake 1.6.3 from Makefile.am.
+# @configure_input@
+
+# Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
+# Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+SHELL = @SHELL@
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = @srcdir@
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+
+bindir = @bindir@
+sbindir = @sbindir@
+libexecdir = @libexecdir@
+datadir = @datadir@
+sysconfdir = @sysconfdir@
+sharedstatedir = @sharedstatedir@
+localstatedir = @localstatedir@
+libdir = @libdir@
+infodir = @infodir@
+mandir = @mandir@
+includedir = @includedir@
+oldincludedir = /usr/include
+pkgdatadir = $(datadir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+top_builddir = ..
+
+ACLOCAL = @ACLOCAL@
+AUTOCONF = @AUTOCONF@
+AUTOMAKE = @AUTOMAKE@
+AUTOHEADER = @AUTOHEADER@
+
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+INSTALL = @INSTALL@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_DATA = @INSTALL_DATA@
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = @program_transform_name@
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+host_alias = @host_alias@
+host_triplet = @host@
+
+EXEEXT = @EXEEXT@
+OBJEXT = @OBJEXT@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+AMTAR = @AMTAR@
+AR = @AR@
+AS = @AS@
+AWK = @AWK@
+CC = @CC@
+CPP = @CPP@
+CXX = @CXX@
+CXXCPP = @CXXCPP@
+DEPDIR = @DEPDIR@
+DLLTOOL = @DLLTOOL@
+ECHO = @ECHO@
+EGREP = @EGREP@
+F77 = @F77@
+GCJ = @GCJ@
+GCJFLAGS = @GCJFLAGS@
+GELFINCLUDE = @GELFINCLUDE@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LIBGELF = @LIBGELF@
+LIBTOOL = @LIBTOOL@
+LN_S = @LN_S@
+OBJDUMP = @OBJDUMP@
+PACKAGE = @PACKAGE@
+RANLIB = @RANLIB@
+RC = @RC@
+STRIP = @STRIP@
+VERSION = @VERSION@
+am__include = @am__include@
+am__quote = @am__quote@
+install_sh = @install_sh@
+
+AUTOMAKE_OPTIONS = 1.4 gnu
+
+man_MANS = prelink.8 execstack.8
+EXTRA_DIST = prelink.8 execstack.8 prelink.conf
+PDFLATEXINPUTS = TEXINPUTS_pdflatex=.:$(srcdir):`kpsewhich --progname=pdflatex --show-path=cnf.pdflatex`
+LATEXINPUTS = TEXINPUTS_latex=.:$(srcdir):`kpsewhich --progname=latex --show-path=cnf.latex`
+
+noinst_DATA = prelink.pdf
+pics = gap bss basemove newseg dso1 dso2 dso3
+
+SUFFIXES = .fig .eps .pdf
+
+CLEANFILES = $(pics:=.eps) $(pics:=.pdf) prelink.aux prelink.dvi \
+            prelink.log prelink.mtc prelink.mtc1 prelink.pdf prelink.ps \
+            prelink.glo prelink.idx prelink.out prelink.tpt prelink.ilg \
+            prelink.gls prelink.toc
+
+subdir = doc
+mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+DIST_SOURCES =
+
+NROFF = nroff
+MANS = $(man_MANS)
+DATA = $(noinst_DATA)
+
+DIST_COMMON = Makefile.am Makefile.in
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .fig .eps .pdf
+$(srcdir)/Makefile.in:  Makefile.am  $(top_srcdir)/configure.in $(ACLOCAL_M4)
+       cd $(top_srcdir) && \
+         $(AUTOMAKE) --gnu  doc/Makefile
+Makefile:  $(srcdir)/Makefile.in  $(top_builddir)/config.status
+       cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)
+
+mostlyclean-libtool:
+       -rm -f *.lo
+
+clean-libtool:
+       -rm -rf .libs _libs
+
+distclean-libtool:
+       -rm -f libtool
+uninstall-info-am:
+
+man8dir = $(mandir)/man8
+install-man8: $(man8_MANS) $(man_MANS)
+       @$(NORMAL_INSTALL)
+       $(mkinstalldirs) $(DESTDIR)$(man8dir)
+       @list='$(man8_MANS) $(dist_man8_MANS) $(nodist_man8_MANS)'; \
+       l2='$(man_MANS) $(dist_man_MANS) $(nodist_man_MANS)'; \
+       for i in $$l2; do \
+         case "$$i" in \
+           *.8*) list="$$list $$i" ;; \
+         esac; \
+       done; \
+       for i in $$list; do \
+         if test -f $(srcdir)/$$i; then file=$(srcdir)/$$i; \
+         else file=$$i; fi; \
+         ext=`echo $$i | sed -e 's/^.*\\.//'`; \
+         case "$$ext" in \
+           8*) ;; \
+           *) ext='8' ;; \
+         esac; \
+         inst=`echo $$i | sed -e 's/\\.[0-9a-z]*$$//'`; \
+         inst=`echo $$inst | sed -e 's/^.*\///'`; \
+         inst=`echo $$inst | sed '$(transform)'`.$$ext; \
+         echo " $(INSTALL_DATA) $$file $(DESTDIR)$(man8dir)/$$inst"; \
+         $(INSTALL_DATA) $$file $(DESTDIR)$(man8dir)/$$inst; \
+       done
+uninstall-man8:
+       @$(NORMAL_UNINSTALL)
+       @list='$(man8_MANS) $(dist_man8_MANS) $(nodist_man8_MANS)'; \
+       l2='$(man_MANS) $(dist_man_MANS) $(nodist_man_MANS)'; \
+       for i in $$l2; do \
+         case "$$i" in \
+           *.8*) list="$$list $$i" ;; \
+         esac; \
+       done; \
+       for i in $$list; do \
+         ext=`echo $$i | sed -e 's/^.*\\.//'`; \
+         inst=`echo $$i | sed -e 's/\\.[0-9a-z]*$$//'`; \
+         inst=`echo $$inst | sed -e 's/^.*\///'`; \
+         inst=`echo $$inst | sed '$(transform)'`.$$ext; \
+         echo " rm -f $(DESTDIR)$(man8dir)/$$inst"; \
+         rm -f $(DESTDIR)$(man8dir)/$$inst; \
+       done
+tags: TAGS
+TAGS:
+
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+
+top_distdir = ..
+distdir = $(top_distdir)/$(PACKAGE)-$(VERSION)
+
+distdir: $(DISTFILES)
+       @list='$(DISTFILES)'; for file in $$list; do \
+         if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+         dir=`echo "$$file" | sed -e 's,/[^/]*$$,,'`; \
+         if test "$$dir" != "$$file" && test "$$dir" != "."; then \
+           dir="/$$dir"; \
+           $(mkinstalldirs) "$(distdir)$$dir"; \
+         else \
+           dir=''; \
+         fi; \
+         if test -d $$d/$$file; then \
+           if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+             cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+           fi; \
+           cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+         else \
+           test -f $(distdir)/$$file \
+           || cp -p $$d/$$file $(distdir)/$$file \
+           || exit 1; \
+         fi; \
+       done
+check-am: all-am
+check: check-am
+all-am: Makefile $(MANS) $(DATA)
+
+installdirs:
+       $(mkinstalldirs) $(DESTDIR)$(man8dir)
+
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+       @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+       $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+         INSTALL_STRIP_FLAG=-s \
+         `test -z '$(STRIP)' || \
+           echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+       -test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+       -rm -f Makefile $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+       @echo "This command is intended for maintainers to use"
+       @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-am
+
+distclean-am: clean-am distclean-generic distclean-libtool
+
+dvi: dvi-am
+
+dvi-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-man
+
+install-exec-am:
+
+install-info: install-info-am
+
+install-man: install-man8
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+uninstall-am: uninstall-info-am uninstall-man
+
+uninstall-man: uninstall-man8
+
+.PHONY: all all-am check check-am clean clean-generic clean-libtool \
+       distclean distclean-generic distclean-libtool distdir dvi \
+       dvi-am info info-am install install-am install-data \
+       install-data-am install-exec install-exec-am install-info \
+       install-info-am install-man install-man8 install-strip \
+       installcheck installcheck-am installdirs maintainer-clean \
+       maintainer-clean-generic mostlyclean mostlyclean-generic \
+       mostlyclean-libtool uninstall uninstall-am uninstall-info-am \
+       uninstall-man uninstall-man8
+
+
+prelink.pdf: prelink.tex $(pics:=.fig) linuxtag.sty \
+            prelinklisting.sty lineno.sty glossary.conf
+       $(MAKE) $(pics:=.pdf)
+       $(PDFLATEXINPUTS) pdflatex $<
+       makeindex -s $(srcdir)/glossary.conf -o prelink.gls prelink.glo
+       if grep -q Rerun prelink.log; then $(PDFLATEXINPUTS) pdflatex $<; fi
+       thumbpdf $@ && $(PDFLATEXINPUTS) pdflatex $<
+       mv $@ prelinkin.pdf
+       pdfopt prelinkin.pdf $@
+       rm prelinkin.pdf
+
+prelink.ps: prelink.dvi
+       dvips $< -o $@
+
+prelink.dvi: prelink.tex $(pics:=.eps)
+       $(LATEXINPUTS) latex $<
+       if grep -q Rerun prelink.log; then $(LATEXINPUTS) latex $<; fi
+
+.fig.eps:
+       fig2dev -L eps $^ $@
+
+.fig.pdf:
+       fig2dev -L pdf $^ $@
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/doc/basemove.fig b/doc/basemove.fig
new file mode 100644 (file)
index 0000000..6fb1c02
--- /dev/null
@@ -0,0 +1,97 @@
+#FIG 3.2
+Landscape
+Center
+Inches
+Letter  
+100.00
+Single
+-2
+1200 2
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+4 0 0 50 0 0 12 0.0000 4 180 1890 8100 3225 .gnu.version ... .eh_frame\001
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diff --git a/doc/bss.fig b/doc/bss.fig
new file mode 100644 (file)
index 0000000..2c9325f
--- /dev/null
@@ -0,0 +1,74 @@
+#FIG 3.2
+Landscape
+Center
+Inches
+Letter  
+100.00
+Single
+-2
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diff --git a/doc/dso1.fig b/doc/dso1.fig
new file mode 100644 (file)
index 0000000..0bd75f3
--- /dev/null
@@ -0,0 +1,81 @@
+#FIG 3.2
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diff --git a/doc/dso2.fig b/doc/dso2.fig
new file mode 100644 (file)
index 0000000..73d0a14
--- /dev/null
@@ -0,0 +1,81 @@
+#FIG 3.2
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diff --git a/doc/dso3.fig b/doc/dso3.fig
new file mode 100644 (file)
index 0000000..ffdb9de
--- /dev/null
@@ -0,0 +1,110 @@
+#FIG 3.2
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+-6
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+        600 1200 2100 1200 2100 1800 600 1800 600 1200
+2 2 0 2 0 7 50 0 -1 6.000 0 0 -1 0 0 5
+        2100 1200 2775 1200 2775 1800 2100 1800 2100 1200
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+        4800 675
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+        6000 675 6000 5250
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+       0 0 1.00 60.00 120.00
+        2100 1950 2100 2700
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+       0 0 1.00 60.00 120.00
+        2775 1950 3075 2700
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+        3375 1950
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+       0 0 1.00 60.00 120.00
+        3375 1950 4500 2700
+2 1 0 1 0 7 50 0 -1 4.000 0 0 -1 1 0 2
+       0 0 1.00 60.00 120.00
+        5400 1950 6600 2700
+2 1 0 1 0 7 50 0 -1 4.000 0 0 -1 1 0 2
+       0 0 1.00 60.00 120.00
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+2 2 1 2 0 7 50 0 -1 6.000 0 0 -1 0 0 5
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+        4800 750 4800 5250
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+        4800 1200 5925 1200 5925 1800 4800 1800 4800 1200
+2 2 1 2 0 7 50 0 -1 6.000 0 0 -1 0 0 5
+        4800 975 6525 975 6525 1950 4800 1950 4800 975
+2 1 1 2 0 7 50 0 -1 6.000 0 0 -1 0 0 2
+        5925 975 5925 1950
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+        5925 1200 6525 1200 6525 1800 5925 1800 5925 1200
+2 2 0 2 0 7 50 0 -1 0.000 0 0 -1 0 0 5
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+2 2 0 2 0 7 50 0 -1 0.000 0 0 -1 0 0 5
+        2100 2850 3075 2850 3075 3450 2100 3450 2100 2850
+2 2 0 2 0 7 50 0 -1 0.000 0 0 -1 0 0 5
+        5850 2850 3975 2850 3975 3450 5850 3450 5850 2850
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+2 2 0 2 0 7 50 0 44 0.000 0 0 -1 0 0 5
+        7125 2850 7725 2850 7725 3450 7125 3450 7125 2850
+2 2 1 2 0 7 50 0 -1 6.000 0 0 -1 0 0 5
+        6000 2700 7725 2700 7725 3600 6000 3600 6000 2700
+2 1 1 2 0 7 50 0 -1 6.000 0 0 -1 0 0 2
+        7125 2700 7125 3600
+2 1 0 1 0 7 50 0 -1 4.000 0 0 -1 1 0 2
+       0 0 1.00 60.00 120.00
+        5475 5400 5475 5175
+2 1 0 1 0 7 50 0 -1 4.000 0 0 -1 1 0 2
+       0 0 1.00 60.00 120.00
+        5475 5400 4950 5250
+4 0 0 50 0 0 12 0.0000 4 180 1155 675 1575 .hash ... .dynstr\001
+4 0 0 50 0 0 12 0.0000 4 180 555 2175 1575 .rel.dyn\001
+4 0 0 50 0 0 12 0.0000 4 180 1440 2850 1575 .text ... ro_seg_end\001
+4 0 0 50 0 0 12 0.0000 4 180 1095 3675 2475 page boundary\001
+4 0 0 50 0 0 12 0.0000 4 180 1095 6075 2475 page boundary\001
+4 0 0 50 0 0 12 0.0000 4 180 885 4950 1575 .data ... .got\001
+4 0 0 50 0 0 12 0.0000 4 135 315 6000 1575 .bss\001
+4 0 0 50 0 0 12 0.0000 4 180 1155 675 3225 .hash ... .dynstr\001
+4 0 0 50 0 0 12 0.0000 4 180 555 2175 3225 .rel.dyn\001
+4 0 0 50 0 0 12 0.0000 4 180 1440 4050 3225 .text ... ro_seg_end\001
+4 0 0 50 0 0 12 0.0000 4 180 885 6150 3224 .data ... .got\001
+4 0 0 50 0 0 12 0.0000 4 135 315 7200 3224 .bss\001
+4 0 0 50 0 0 12 0.0000 4 180 3450 3675 5550 This page needs to be mapped from 2 sources\001
+4 0 0 50 0 0 12 0.0000 4 135 645 1125 4050 And not:\001
diff --git a/doc/execstack.8 b/doc/execstack.8
new file mode 100644 (file)
index 0000000..e0e95fa
--- /dev/null
@@ -0,0 +1,92 @@
+.TH execstack 8 "28 October 2003"
+.SH NAME
+execstack \- tool to set, clear, or query executable stack flag of ELF binaries and shared libraries
+.SH SYNOPSIS
+execstack
+.RB [OPTION...]\ [FILES]
+.SH DESCRIPTION
+.B execstack
+is a program which sets, clears, or queries executable stack flag of ELF
+binaries and shared libraries.  Linux has in the past allowed execution
+of instructions on the stack and there are lots of binaries and shared
+libraries assuming this behaviour.  Furthermore, GCC trampoline code
+for e.g. nested functions requires executable stack on many architectures.
+To avoid breaking binaries and shared libraries which need executable stack,
+ELF binaries and shared libraries now can be marked as requiring executable
+stack or not requiring it.  This marking is done through the p_flags field
+in the PT_GNU_STACK program header entry.  If the marking is missing, kernel
+or dynamic linker need to assume it might need executable stack.
+The marking is done automatically by recent GCC versions (objects using
+trampolines on the stack are marked as requiring executable stack,
+all other newly built objects are marked as not requiring it) and
+linker collects these markings into marking of the whole binary
+or shared library.  The user can override this at assembly time
+(through
+.B \-\-execstack
+or
+.B \-\-noexecstack
+assembler options), at link time (through
+.B \-z execstack
+or
+.B \-z noexecstack
+linker options) and using the
+.B execstack
+tool also on an already linker binary or shared library.
+This tool is especially useful for third party shared libraries
+where it is known that they don't need executable stack or testing proves
+it.
+.SH OPTIONS
+.TP
+.B \-s \-\-set\-execstack
+Mark binary or shared library as requiring executable stack.
+.TP
+.B \-c \-\-clear\-execstack
+Mark binary or shared library as not requiring executable stack.
+.TP
+.B \-q \-\-query
+Query executable stack marking of binaries and shared libraries.
+For each file it prints either
+.B \-
+when executable stack is not required,
+.B X
+when executable stack is required or
+.B ?
+when it is unknown whether the object requires or doesn't require
+executable stack (the marking is missing).
+.TP
+.B \-V
+Print
+.B execstack
+version and exit.
+.TP
+.B \-? \-\-help
+Print help message.
+.TP
+.B \-\-usage
+Print a short usage message.
+.SH ARGUMENTS
+Command line arguments should be names of ELF binaries and shared libraries
+which should be modified or queried.
+.SH EXAMPLES
+.RS
+# execstack -s ~/lib/libfoo.so.1
+.RE
+will mark ~/lib/libfoo.so.1 as requiring executable stack.
+.RS
+# execstack -c ~/bin/bar
+.RE
+will mark ~/bin/bar as not requiring executable stack.
+.RS
+# execstack -q ~/lib/libfoo.so.1 ~/bin/bar
+.RE
+will query executable stack marking of the given files.
+.SH SEE ALSO
+.BR ld.so (8).
+.SH BUGS
+.LP
+.B execstack
+doesn't support yet marking of executables if they do not have
+PT_GNU_STACK program header entry nor they have room for program segment
+header table growth.
+.SH AUTHORS
+Jakub Jelinek <jakub@redhat.com>.
diff --git a/doc/gap.fig b/doc/gap.fig
new file mode 100644 (file)
index 0000000..ced67c9
--- /dev/null
@@ -0,0 +1,87 @@
+#FIG 3.2
+Landscape
+Center
+Inches
+Letter  
+100.00
+Single
+-2
+1200 2
+2 2 0 2 0 7 50 0 -1 0.000 0 0 -1 0 0 5
+        600 1200 2175 1200 2175 1800 600 1800 600 1200
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+2 2 0 2 0 7 50 0 -1 0.000 0 0 -1 0 0 5
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+       0 0 1.00 60.00 120.00
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+       0 0 1.00 60.00 120.00
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+       0 0 1.00 60.00 120.00
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+2 1 1 2 0 7 50 0 -1 6.000 0 0 -1 0 0 2
+        10950 975 10950 1950
+2 1 1 2 0 7 50 0 -1 6.000 0 0 -1 0 0 13
+        10950 2700 10950 2775 10950 2850 10950 2925 10950 3000 10950 3075
+        10950 3150 10950 3225 10950 3300 10950 3375 10950 3450 10950 3525
+        10950 3600
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+        10950 1200 11550 1200 11550 1800 10950 1800 10950 1200
+2 2 0 2 0 7 50 0 44 0.000 0 0 -1 0 0 5
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+4 0 0 50 0 0 12 0.0000 4 180 1335 750 1575 .interp ... .dynsym\001
+4 0 0 50 0 0 12 0.0000 4 180 525 2325 1575 .dynstr\001
+4 0 0 50 0 0 12 0.0000 4 180 1005 3300 1575 .gnu.version*\001
+4 0 0 50 0 0 12 0.0000 4 180 1530 7575 1575 .rel.dyn ... .eh_frame\001
+4 0 0 50 0 0 12 0.0000 4 180 1335 750 3225 .interp ... .dynsym\001
+4 0 0 50 0 0 12 0.0000 4 180 780 2175 3225 .gnu.liblist\001
+4 0 0 50 0 0 12 0.0000 4 180 1005 3300 3225 .gnu.version*\001
+4 0 0 50 0 0 12 0.0000 4 180 525 4575 3225 .dynstr\001
+4 0 0 50 0 0 12 0.0000 4 180 930 5775 3225 .gnu.conflict\001
+4 0 0 50 0 0 12 0.0000 4 180 1530 7575 3225 .rel.dyn ... .eh_frame\001
+4 0 0 50 0 0 12 0.0000 4 180 885 9975 1575 .data ... .got\001
+4 0 0 50 0 0 12 0.0000 4 180 885 9975 3225 .data ... .got\001
+4 0 0 50 0 0 12 0.0000 4 135 315 11025 1575 .bss\001
+4 0 0 50 0 0 12 0.0000 4 135 315 11100 3225 .bss\001
diff --git a/doc/glossary.conf b/doc/glossary.conf
new file mode 100644 (file)
index 0000000..477b529
--- /dev/null
@@ -0,0 +1,3 @@
+keyword "\\glossaryentry"
+preamble "\n \\begin{theglossary}\n"
+postamble "\n\n \\end{theglossary}\n"
diff --git a/doc/lineno.sty b/doc/lineno.sty
new file mode 100644 (file)
index 0000000..0805bcc
--- /dev/null
@@ -0,0 +1,1521 @@
+\iffalse;                               awk '/S[H]ELL/' lineno.sty|sh;exit;\fi
+%%%                        To pretty-print this file, feed it to a unix shell!
+%%%
+%%% $Id: lineno.sty,v 3.12 2003/01/14 21:11:53 stephan Exp $
+%%%
+%%% Copyright 1995--2001 Stephan I. B"ottcher <stephan@nevis.columbia.edu>
+%%%
+%%% This program can be redistributed and/or modified under the terms
+%%% of the LaTeX Project Public License Distributed from CTAN
+%%% archives in directory macros/latex/base/lppl.txt; either
+%%% version 1 of the License, or any later version.
+%%%
+%                                      \documentclass[a4paper,12pt]{article}%D
+%                                                        \usepackage{lineno}%D
+%
+%                                                                      \title{
+%                                                             \texttt{\itshape
+%         lineno.sty \ v3.09 2003/01/14
+%                                                                      }\\\ \\
+%          A \LaTeX\ package  to attach                  
+% \\        Line numbers to paragraphs
+%                                                                    }\author{
+%              Stephan I. B\"ottcher                    
+%                                                                      }\date{
+%            boettcher@physik.uni-kiel.de
+%% \\        stephan@nevis.columbia.edu
+%% \\        Stephan.Boettcher@cern.ch                     
+%                                                                          \\}
+%
+%
+%                                                                \def~{\verb~}
+%                                                       \catcode`\<\catcode`\~
+%                                   \def<#1>{$\langle${\itshape#1}\/$\rangle$}
+%                                                       \catcode`\|\catcode`\~
+%                                                \def|#1{{\ttfamily\string#1}}
+%                                                        \newenvironment{code}
+%                                                     {\par\runninglinenumbers
+%                                                        \modulolinenumbers[1]
+%                                                           \linenumbersep.3em
+%                                                                \footnotesize
+%                                                          \def\linenumberfont
+%                                                  {\normalfont\tiny\itshape}}
+%                                                                           {}
+%
+%                                                           \begin{document}%D
+%%                                                     \DocInput{lineno.doc}%D
+%                                                         \pagewiselinenumbers
+%                                                                   \maketitle
+%                                                             \tableofcontents
+%                                                                      \sloppy
+%
+%
+%
+%                                                                    \section{
+%                    Introduction
+%                                                                            }
+% This package provides line numbers on paragraphs.
+% After \TeX\ has broken a paragraph into lines there will
+% be line numbers attached to them, with the possibility to
+% make references  through the \LaTeX\ ~\ref~, ~\pageref~
+% cross reference mechanism.  This includes four issues:
+%                                                              \begin{itemize}
+% \item   attach a line number on each line,
+% \item   create references to a line number,
+% \item   control line numbering mode,
+% \item   count the lines and print the numbers.
+%                                                                \end{itemize}
+% The first two points are implemented through patches to
+% the output routine.  The third by redefining ~\par~, ~\@par~
+% and ~\@@par~.  The counting is easy, as long as you want
+% the line numbers run through the text.  If they shall
+% start over at the top of each page, the aux-file as well
+% as \TeX s memory have to carry a load for each counted line.
+%
+% I wrote this package for my wife Petra, who needs it for
+% transcriptions of interviews.  This allows her to
+% precisely refer to passages in the text.  It works well
+% together with ~\marginpar~s, but not to well with displaymath. 
+% ~\footnote~s are a problem, especially when they
+% are split, but we may get there. 
+%
+% lineno.sty works
+% surprisingly well with other packages, for
+% example, ~wrapfig.sty~.  So please try if it
+% works with whatever you need, and if it does,
+% please tell me, and if it does not, tell me as
+% well, so I can try to fix it.
+%
+% This style option is written for \LaTeXe, later than November 1994,
+% since we need the ~\protected@write~ macro.
+
+\NeedsTeXFormat{LaTeX2e}[1994/11/04]
+\ProvidesPackage{lineno}
+  [2003/01/14 line numbers on paragraphs v3.09]
+
+%% v1.00 1995/03/31  SIB: first release for Petras interview transcriptions
+%% v1.01 1995/10/28  SIB: added ~pagewise~ mode
+%% v1.02 1995/11/15  SIB: added ~modulo~ option  
+%% v1.03 1995/12/05  SIB: pagewise: try to reduce the hash-size requirements
+%% v2.00 1995/12/06  SIB:   .. it works, new user interface
+%% v2.01 1996/09/17  SIB: put into CVS
+%% v2.02 1997/03/17  SIB: add: \@reinserts, for footnotes
+%% v2.04 1998/03/09  SIB: add: linenomath environment
+%% v2.05 1998/04/26  SIB: add: prevgraf test
+%% v2.06 1999/03/02  SIB: LPPL added
+%% v3.00 1999/06/11  SiB: include the extension in the main file
+%% v3.01 1999/08/28  SiB: \@reinserts -> \holdinginserts
+%% v3.02 2000/03/10  SiB: \@LN@output
+%% v3.03 2000/07/01  SiB: \@LN@ExtraLabelItems, hyperref
+%% v3.04 2000/12/17  SiB: longtable compatibility.
+%% v3.05 2001/01/02  SiB: [fleqn] detection. 
+%% v3.05a 2001/01/04 SiB: [fleqn] detection reverted for eqnarray. 
+%% v3.06 2001/01/17  SiB: [twocolumn] mode support.
+%% v3.07 2001/07/30  SiB: [hyperref] option obsoleted.
+%% v3.08 2001/08/02  SiB: linenomath wrapping for \[ \]
+%% v3.08a 2001/08/04  SiB: linenomath wrapping for \[ \] fixed
+%% v3.08b 2002/01/27  SiB: enquotation typo fix
+%% v3.09 2003/01/14  SIB: hyperref detection fix
+%%
+%% Acknowledgements:
+%% v3.06:  Donald Arseneau, pointed to mparhack.sty.
+%% v3.07+: Frank Mittelbach, points out inconsistencies in the
+%%         user interface.
+%
+%                                                                    \section{
+%          Put the line numbers to the lines
+%                                                                            }
+% The line numbers have to be attached by the output
+% routine.  We simply set the ~\interlinepenalty~ to -100000.
+% The output routine will be called after each line in the
+% paragraph,  except the last,  where we trigger by ~\par~.
+% The ~\linenopenalty~ is small enough to compensate a bunch of
+% penalties (e.g., with ~\samepage~).
+%
+% (New v3.04)            Longtable uses 
+% ~\penaly~-30000.  The lineno penalty range was 
+% shrunk to $-188000 \dots -32000$.  (/New v3.04)
+
+\newcount\linenopenalty\linenopenalty=-100000
+\mathchardef\linenopenaltypar=32000
+
+% So let's make a hook to ~\output~,  the direct way. The \LaTeX\ 
+% macro ~\@reinserts~ puts the footnotes back on the page.
+%
+% (New v3.01)                ~\@reinserts~ badly
+% screws up split footnotes.  The bottom part is
+% still on the recent contributions list, and the
+% top part will be put back there after the bottom
+% part. Thus, since lineno.sty does not play well
+% with ~\inserts~ anyway, we can safely experiment
+% with ~\holdinginserts~, without making things
+% much worse.    
+%
+% Or that's what I thought, but:  Just activating
+% ~\holdinginserts~ while doing the ~\par~ will
+% not do the trick:  The ~\output~ routine may be
+% called for a real page break before all line
+% numbers are done, and how can we get control
+% over ~\holdinginserts~ at that point?
+%
+% Let's try this:  When the ~\output~ routine is
+% run with ~\holdinginserts=3~ for a real page
+% break, then we reset ~\holdinginserts~ and
+% restart ~\output~.
+%
+% Then, again, how do we keep the remaining
+% ~\inserts~ while doing further line numbers? 
+%
+% If we find ~\holdinginserts~=-3 we activate it again 
+% after doing ~\output~.             (/New v3.01)
+%
+% (New v3.02)                    To work with
+% multicol.sty, the original output routine is now
+% called indirectly, instead of being replaced.
+% When multicol.sty changes ~\output~, it is a
+% toks register, not the real thing. (/New v3.02)
+
+\let\@LN@output\output
+\newtoks\output
+\output=\expandafter{\the\@LN@output}
+\@LN@output={%
+            \LineNoTest
+            \if@tempswa
+              \LineNoHoldInsertsTest
+              \if@tempswa
+                 \if@twocolumn\let\@makecol\@LN@makecol\fi
+                 \the\output
+                 \ifnum\holdinginserts=-3
+                   \global\holdinginserts 3
+                 \fi
+              \else
+                 \global\holdinginserts-3
+                 \unvbox\@cclv
+                 \ifnum\outputpenalty=10000\else
+                   \penalty\outputpenalty
+                 \fi
+              \fi
+            \else  
+              \MakeLineNo
+            \fi
+            }
+
+% The float mechanism inserts ~\interlinepenalty~s during
+% ~\output~.  So carefully reset it before going on.  Else
+% we get doubled line numbers on every float placed in
+% horizontal mode, e.g, from ~\linelabel~.  
+%
+% Sorry, neither a ~\linelabel~ nor a ~\marginpar~ should
+% insert a penalty, else the following linenumber
+% could go to the next page. Nor should any other
+% float.  So let us suppress the ~\interlinepenalty~ 
+% altogether with the ~\@nobreak~ switch.
+%
+% Since (ltspace.dtx, v1.2p)[1996/07/26], the ~\@nobreaktrue~ does
+% it's job globally.  We need to do it locally here.
+
+\def\LineNoTest{%
+  \let\@@par\@@@par
+  \ifnum\interlinepenalty<-\linenopenaltypar
+     \advance\interlinepenalty-\linenopenalty
+     \my@nobreaktrue
+     \fi
+  \@tempswatrue
+  \ifnum\outputpenalty>-\linenopenaltypar\else
+     \ifnum\outputpenalty>-188000\relax
+       \@tempswafalse
+       \fi
+     \fi
+  }
+
+\def\my@nobreaktrue{\let\if@nobreak\iftrue}
+
+\def\LineNoHoldInsertsTest{%
+  \ifnum\holdinginserts=3\relax
+    \@tempswafalse
+  \fi
+  }
+     
+% We have to return all the page to the current page, and
+% add a box with the line number, without adding
+% breakpoints, glue or space.  The depth of our line number
+% should be equal to the previous depth of the page, in
+% case the page breaks here,  and the box has to be moved up
+% by that depth.  
+%
+% The ~\interlinepenalty~ comes after the ~\vadjust~ from a
+% ~\linelabel~,  so we increment the line number \emph{after}
+% printing it. The macro ~\makeLineNumber~ produces the
+% text of the line number, see section \ref{appearance}.
+%
+% Finally we put in the natural ~\interlinepenalty~, except
+% after the last line. 
+
+\def\MakeLineNo{\@tempdima\dp\@cclv \unvbox\@cclv
+   \sbox\@tempboxa{\hbox to\z@{\makeLineNumber}}%
+   \stepcounter{linenumber}%
+   \dp\@tempboxa=\@tempdima\ht\@tempboxa=\z@
+   \nointerlineskip\kern-\@tempdima\box\@tempboxa
+   \ifnum\outputpenalty=-\linenopenaltypar\else
+       \@tempcnta\outputpenalty
+       \advance\@tempcnta -\linenopenalty
+       \penalty\@tempcnta
+   \fi
+   }
+
+%
+%
+%                                                                    \section{
+%               Control line numbering
+%                                                                            }
+% The line numbering is controlled via ~\par~.  \LaTeX\
+% saved the \TeX-primitive ~\par~ in ~\@@par~.  We push it
+% one level further out, and redefine ~\@@par~ to insert
+% the ~\interlinepenalty~ needed to trigger the
+% line numbering. And we need to allow pagebreaks after a
+% paragraph. 
+% 
+% New (2.05beta): the prevgraf test.  A paragraph that ends with a
+% displayed equation, a ~\noindent\par~ or ~wrapfig.sty~ produce empty
+% paragraphs. These should not get a spurious line number via
+% ~\linenopenaltypar~. 
+
+\let\@@@par\@@par
+\newcount\linenoprevgraf
+
+\def\linenumberpar{\ifvmode\@@@par\else\ifinner\@@@par\else
+     \advance\interlinepenalty \linenopenalty
+        \linenoprevgraf\prevgraf
+        \global\holdinginserts3%
+        \@@@par
+        \ifnum\prevgraf>\linenoprevgraf
+           \penalty-\linenopenaltypar
+           \fi
+        \kern\z@
+        \global\holdinginserts0%
+     \advance\interlinepenalty -\linenopenalty
+     \fi\fi
+     }
+
+% The basic commands to enable and disable line numbers.
+% ~\@par~ and ~\par~ are only touched, when they are ~\let~ 
+% to ~\@@@par~/~\linenumberpar~.  The line number may be
+% reset to 1 with the star-form, or set by an optional
+% argument ~[~<number>~]~. 
+
+\def\linenumbers{\let\@@par\linenumberpar
+     \ifx\@par\@@@par\let\@par\linenumberpar\fi
+     \ifx\par\@@@par\let\par\linenumberpar\fi
+     \@ifnextchar[{\resetlinenumber}%]
+                 {\@ifstar{\resetlinenumber}{}}%
+     }
+
+\def\nolinenumbers{\let\@@par\@@@par
+  \ifx\@par\linenumberpar\let\@par\@@@par\fi
+  \ifx\par\linenumberpar\let\par\@@@par\fi
+  }
+
+% What happens with a display math?  Since ~\par~ is not executed,
+% when breaking the lines before a display, they will not get
+% line numbers.  Sorry, but I do not dare to change
+% ~\interlinepenalty~ globally, nor do I want to redefine
+% the display math environments here.
+%   \begin{displaymath}
+%                       display \ math
+%   \end{displaymath}
+% See the subsection below, for a wrapper enviroment to make
+% it work.  But that requires to wrap each and every display
+% in your LaTeX source.
+%
+% The next two commands are provided to turn on line
+% numbering in a specific mode. Please note the difference:
+% for pagewise numbering, ~\linenumbers~ comes first to
+% inhibit it from seeing optional arguments, since
+% re-/presetting the counter is useless. 
+
+\def\pagewiselinenumbers{\linenumbers\setpagewiselinenumbers}
+\def\runninglinenumbers{\setrunninglinenumbers\linenumbers}
+
+% Finally, it is a \LaTeX\ style, so we provide for the use
+% of environments, including the suppression of the
+% following paragraph's indentation.
+
+%%% TO DO: add \par to \linenumbers, if called from an environment.
+%%% To DO: add an \@endpe hack if \linenumbers are turned on
+%%%        in horizontal mode. {\par\parskip\z@\noindent} or
+%%%        something.
+
+\@namedef{linenumbers*}{\par\linenumbers*}
+\@namedef{runninglinenumbers*}{\par\runninglinenumbers*}
+
+\def\endlinenumbers{\par\@endpetrue}
+\let\endrunninglinenumbers\endlinenumbers
+\let\endpagewiselinenumbers\endlinenumbers
+\expandafter\let\csname endlinenumbers*\endcsname\endlinenumbers
+\expandafter\let\csname endrunninglinenumbers*\endcsname\endlinenumbers
+\let\endnolinenumbers\endlinenumbers
+
+%
+%                                                                 \subsection{
+%                  Display math
+%                                                                            }
+%
+% Now we tackle the problem to get display math working.  
+% There are different options.
+%                                                      \begin{enumerate}\item[
+% 1.]  Precede every display math with a ~\par~.  
+%      Not too good.
+%                                                                       \item[
+% 2.]  Change ~\interlinepenalty~ and associates globally.  
+%      Unstable.
+%                                                                       \item[
+% 3.]  Wrap each display math with a ~{linenomath}~  
+%      environment. 
+%                                                              \end{enumerate}
+% We'll go for option 3.  See if it works:  
+% \begin{linenomath}
+%   \begin{equation}
+%      display \ math
+%   \end{equation}
+% \end{linenomath}
+% The star form ~{linenomath*}~ should also number the lines
+% of the display itself,
+% \begin{linenomath*}
+%   \begin{eqnarray}
+%     multi   && line \\
+%     display && math \\
+%     & 
+%     \begin{array}{c}
+%       with \\
+%       array
+%     \end{array}
+%     &
+%   \end{eqnarray}
+% \end{linenomath*}
+% including multline displays.
+% 
+% First, here are two macros to turn
+% on linenumbering on paragraphs preceeding displays, with
+% numbering the lines of the display itself, or without.
+% The ~\ifx..~ tests if line numbering is turned on.  It
+% does not harm to add these wrappers in sections that are
+% not numbered.  Nor does it harm to wrap a display
+% twice, e.q, in case you have some ~{equation}~s wrapped
+% explicitely, and later you redefine ~\equation~ to do it
+% automatically. 
+
+\newcommand\linenomathNonumbers{%
+  \ifx\@@par\@@@par\else  
+    \ifnum\interlinepenalty>-\linenopenaltypar
+      \global\holdinginserts3%
+      \advance\interlinepenalty \linenopenalty
+      \advance\predisplaypenalty \linenopenalty
+    \fi
+  \fi
+  \ignorespaces
+  }
+
+\newcommand\linenomathWithnumbers{%
+  \ifx\@@par\@@@par\else
+    \ifnum\interlinepenalty>-\linenopenaltypar
+      \global\holdinginserts3%
+      \advance\interlinepenalty \linenopenalty
+      \advance\predisplaypenalty \linenopenalty
+      \advance\postdisplaypenalty \linenopenalty
+      \advance\interdisplaylinepenalty \linenopenalty
+    \fi
+  \fi
+  \ignorespaces
+  }
+
+% The ~{linenomath}~ environment has two forms, with and
+% without a star.  The following two macros define the
+% environment, where the stared/non-stared form does/doesn't number the
+% lines of the display or vice versa.
+
+\newcommand\linenumberdisplaymath{%
+  \def\linenomath{\linenomathWithnumbers}%
+  \@namedef{linenomath*}{\linenomathNonumbers}%
+  }
+
+\newcommand\nolinenumberdisplaymath{%
+  \def\linenomath{\linenomathNonumbers}%
+  \@namedef{linenomath*}{\linenomathWithnumbers}%
+  }
+
+\def\endlinenomath{%
+   \global\holdinginserts0
+   \@ignoretrue
+}
+\expandafter\let\csname endlinenomath*\endcsname\endlinenomath
+
+% The default is not to number the lines of a display.  But
+% the package option ~mathlines~ may be used to switch
+% that behavior.
+
+\nolinenumberdisplaymath
+
+%
+%
+%                                                                    \section{
+%               Line number references
+%                                                                            }
+% The only way to get a label to a line number in a
+% paragraph is to ask the output routine to mark it.
+%
+% We use the marginpar mechanism to hook to ~\output~ for a
+% second time.  Marginpars are floats with number $-1$, we
+% fake marginpars with No $-2$. Originally, every negative
+% numbered float was considered to be a marginpar.
+%
+% The float box number ~\@currbox~ is used to transfer the
+% label name in a macro called ~\@LNL@~<box-number>.
+%
+% A ~\newlabel~ is written to the aux-file.  The reference
+% is to ~\theLineNumber~, \emph{not} ~\thelinenumber~.
+% This allows to hook in, as done below for pagewise line
+% numbering. 
+%
+% (New v3.03) The ~\@LN@ExtraLabelItems~ are added for a hook
+% to keep packages like ~{hyperref}~ happy.      (/New v3.03)
+
+\let\@LN@addmarginpar\@addmarginpar
+\def\@addmarginpar{%
+   \ifnum\count\@currbox>-2\relax
+     \expandafter\@LN@addmarginpar
+   \else
+     \@cons\@freelist\@currbox
+     \protected@write\@auxout{}{%
+         \string\newlabel
+            {\csname @LNL@\the\@currbox\endcsname}%
+            {{\theLineNumber}{\thepage}\@LN@ExtraLabelItems}}%
+   \fi}
+
+\let\@LN@ExtraLabelItems\@empty
+
+%                                                                 \subsection{
+%       The linelabel command
+%                                                                            }
+% To refer to a place in line ~\ref{~<foo>~}~ at page
+% ~\pageref{~<foo>~}~ you place a ~\linelabel{~<foo>~}~ at
+% that place.
+%
+%                   \linelabel{demo}
+%                   \marginpar{\tiny\raggedright
+%                       See if it works: This paragraph
+%                       starts on page \pageref{demo}, line
+%                       \ref{demo}.  
+%                       }%
+% If you use this command outside a ~\linenumbers~
+% paragraph, you will get references to some bogus
+% line numbers, sorry.  But we don't disable the command,
+% because only the ~\par~ at the end of a paragraph  may
+% decides whether to print line numbers on this paragraph
+% or not.  A ~\linelabel~ may legally appear earlier than
+% ~\linenumbers~.
+%
+% ~\linelabel~, via a fake float number $-2$, puts a
+% ~\penalty~ into a ~\vadjust~, which triggers the
+% pagebuilder after putting the current line to the main
+% vertical list.  A ~\write~ is placed on the main vertical
+% list, which prints a reference to the current value of
+% ~\thelinenumber~ and ~\thepage~ at the time of the
+% ~\shipout~.
+%
+% A ~\linelabel~ is allowed only in outer horizontal mode.
+% In outer vertical mode we start a paragraph, and ignore
+% trailing spaces (by fooling ~\@esphack~).
+%
+% The argument of ~\linelabel~ is put into a macro with a
+% name derived from the number of the allocated float box.
+% Much of the rest is dummy float setup.
+
+\def\linelabel#1{%
+   \ifvmode
+       \ifinner \else 
+          \leavevmode \@bsphack \@savsk\p@
+       \fi
+   \else
+       \@bsphack
+   \fi
+   \ifhmode
+     \ifinner
+       \@parmoderr
+     \else
+       \@floatpenalty -\@Mii
+       \@next\@currbox\@freelist
+           {\global\count\@currbox-2%
+            \expandafter\gdef\csname @LNL@\the\@currbox\endcsname{#1}}%
+           {\@floatpenalty\z@ \@fltovf \def\@currbox{\@tempboxa}}%
+       \begingroup
+           \setbox\@currbox \color@vbox \vbox \bgroup \end@float
+       \endgroup
+       \@ignorefalse \@esphack
+     \fi
+   \else
+     \@parmoderr
+   \fi
+   }
+
+%                                                        \modulolinenumbers[3]
+%                                                                    \section{
+%               The appearance of the line numbers
+%                                                          }\label{appearance}
+% The line numbers are set as ~\tiny\sffamily\arabic{linenumber}~,
+% $10pt$ left of the text.  With options to place it
+% right of the text, or . . .
+%
+%      . . . here are the hooks:
+
+\def\makeLineNumberLeft{\hss\linenumberfont\LineNumber\hskip\linenumbersep}
+
+\def\makeLineNumberRight{\linenumberfont\hskip\linenumbersep\hskip\columnwidth
+                         \hbox to\linenumberwidth{\hss\LineNumber}\hss}
+
+\def\linenumberfont{\normalfont\tiny\sffamily}
+
+\newdimen\linenumbersep
+\newdimen\linenumberwidth
+
+\linenumberwidth=10pt
+\linenumbersep=10pt
+
+% Margin switching requires ~pagewise~ numbering mode, but
+% choosing the left or right margin for the numbers always
+% works. 
+
+\def\switchlinenumbers{\@ifstar
+    {\let\makeLineNumberOdd\makeLineNumberRight
+     \let\makeLineNumberEven\makeLineNumberLeft}%
+    {\let\makeLineNumberOdd\makeLineNumberLeft
+     \let\makeLineNumberEven\makeLineNumberRight}%
+    }
+
+\def\setmakelinenumbers#1{\@ifstar
+  {\let\makeLineNumberRunning#1%
+   \let\makeLineNumberOdd#1%
+   \let\makeLineNumberEven#1}%
+  {\ifx\c@linenumber\c@runninglinenumber
+      \let\makeLineNumberRunning#1%
+   \else
+      \let\makeLineNumberOdd#1%
+      \let\makeLineNumberEven#1%
+   \fi}%
+  }
+
+\def\leftlinenumbers{\setmakelinenumbers\makeLineNumberLeft}
+\def\rightlinenumbers{\setmakelinenumbers\makeLineNumberRight}
+
+\leftlinenumbers*
+
+% ~\LineNumber~ is a hook which is used for the modulo stuff.
+% It is the command to use for the line number, when you
+% customizes ~\makeLineNumber~.  Use ~\thelinenumber~ to
+% change the outfit of the digits.
+%
+%
+% We will implement two modes of operation:
+%                                                              \begin{itemize}
+% \item  numbers ~running~ through (parts of) the text
+% \item  ~pagewise~ numbers starting over with one on top of
+%        each page.
+%                                                                \end{itemize}
+% Both modes have their own count register, but only one is
+% allocated as a \LaTeX\ counter, with the attached
+% facilities serving both.
+
+\newcounter{linenumber}
+\newcount\c@pagewiselinenumber
+\let\c@runninglinenumber\c@linenumber
+
+% Only the running mode counter may be reset, or preset,
+% for individual paragraphs.  The pagewise counter must
+% give a unique anonymous number for each line.
+
+\newcommand\resetlinenumber[1][1]{\c@runninglinenumber#1}
+
+%                                                                 \subsection{
+%               Running line numbers
+%                                                                            }
+% Running mode is easy,  ~\LineNumber~ and ~\theLineNumber~
+% produce ~\thelinenumber~, which defaults to
+% ~\arabic{linenumber}~, using the ~\c@runninglinenumber~
+% counter.  This is the default mode of operation.
+
+\def\makeRunningLineNumber{\makeLineNumberRunning}
+
+\def\setrunninglinenumbers{%
+   \def\theLineNumber{\thelinenumber}%
+   \let\c@linenumber\c@runninglinenumber
+   \let\makeLineNumber\makeRunningLineNumber
+   }
+
+\setrunninglinenumbers\resetlinenumber
+
+%
+%
+%                                                                 \subsection{
+%               Pagewise line numbers
+%                                                                            }
+% Difficult, if you think about it.  The number has to be
+% printed when there is no means to know on which page it
+% will end up,  except through the aux-file.  My solution  
+% is really expensive, but quite robust.  
+%
+% With version ~v2.00~ the hashsize requirements are
+% reduced, because we do not need one controlsequence for
+% each line any more.  But this costs some computation time
+% to find out on which page we are.
+%
+% ~\makeLineNumber~ gets a hook to log the line and page
+% number to the aux-file.  Another hook tries to find out
+% what the page offset is, and subtracts it from the counter
+% ~\c@linenumber~.  Additionally, the switch
+% ~\ifoddNumberedPage~ is set true for odd numbered pages,
+% false otherwise.
+
+\def\setpagewiselinenumbers{%
+   \let\theLineNumber\thePagewiseLineNumber
+   \let\c@linenumber\c@pagewiselinenumber
+   \let\makeLineNumber\makePagewiseLineNumber
+   }
+
+\def\makePagewiseLineNumber{\logtheLineNumber\getLineNumber
+  \ifoddNumberedPage
+     \makeLineNumberOdd
+  \else
+     \makeLineNumberEven
+  \fi
+  }
+
+% Each numbered line gives a line to the aux file
+%                                                                \begin{verse}
+%     ~\@LN{~<line>~}{~<page>~}~
+%                                                                  \end{verse}
+% very similar to the ~\newlabel~ business, except that we need
+% an arabic representation of the page number, not what
+% there might else be in ~\thepage~.
+
+\def\logtheLineNumber{\protected@write\@auxout{}{%
+   \string\@LN{\the\c@linenumber}{\noexpand\the\c@page}}}
+
+% From the aux-file we get one macro ~\LN@P~<page> for each
+% page with line numbers on it.  This macro calls four other
+% macros with one argument each.  These macros are
+% dynamically defined to do tests and actions, to find out
+% on which page the current line number is located.
+%
+% We need sort of a pointer to the first page with line
+% numbers, initiallized to point to nothing:
+
+\def\LastNumberedPage{first} 
+\def\LN@Pfirst{\nextLN\relax}
+
+% The four dynamic macros are initiallized to reproduce
+% themselves in an ~\xdef~
+
+\let\lastLN\relax  % compare to last line on this page
+\let\firstLN\relax % compare to first line on this page
+\let\pageLN\relax  % get the page number, compute the linenumber
+\let\nextLN\relax  % move to the next page
+
+% During the end-document run through the aux-files, we
+% disable ~\@LN~.  I may put in a check here later, to give
+% a rerun recommendation.  
+
+\AtEndDocument{\let\@LN\@gobbletwo}
+
+% Now, this is the tricky part.  First of all, the whole
+% definition of ~\@LN~ is grouped, to avoid accumulation
+% on the save stack. Somehow ~\csname~<cs>~\endcsname~ pushes
+% an entry, which stays after an ~\xdef~ to that <cs>.
+%
+% If ~\LN@P~<page> is undefined, initialize it with the
+% current page and line number, with the
+% \emph{pointer-to-the-next-page} pointing to nothing.  And
+% the macro for the previous page will be redefined to point
+% to the current one. 
+%
+% If the macro for the current page already exists, just
+% redefine the \emph{last-line-number} entry.
+%
+% Finally, save the current page number, to get the pointer to the
+% following page later.
+
+\def\@LN#1#2{{\expandafter\@@LN
+                 \csname LN@P#2C\@LN@column\expandafter\endcsname
+                 \csname LN@PO#2\endcsname
+                 {#1}{#2}}}
+
+\def\@@LN#1#2#3#4{\ifx#1\relax
+    \ifx#2\relax\gdef#2{#3}\fi
+    \expandafter\@@@LN\csname LN@P\LastNumberedPage\endcsname#1
+    \xdef#1{\lastLN{#3}\firstLN{#3}\pageLN{#4}{\@LN@column}{#2}\nextLN\relax}%
+  \else
+    \def\lastLN##1{\noexpand\lastLN{#3}}%
+    \xdef#1{#1}%
+  \fi
+  \xdef\LastNumberedPage{#4C\@LN@column}}
+
+% The previous page macro gets its pointer to the
+% current one, replacing the ~\relax~ with the cs-token
+% ~\LN@P~<page>.  
+
+\def\@@@LN#1#2{{\def\nextLN##1{\noexpand\nextLN\noexpand#2}%
+                \xdef#1{#1}}}
+
+% Now, to print a line number, we need to find the page,
+% where it resides.  This will most probably be the page where
+% the last one came from, or maybe the next page.  However, it can
+% be a completely different one.  We maintain a cache,
+% which is ~\let~ to the last page's macro.  But for now
+% it is initialized to expand ~\LN@first~, where the poiner
+% to the first numbered page has been stored in. 
+
+\def\NumberedPageCache{\LN@Pfirst}
+
+% To find out on which page the current ~\c@linenumber~ is, 
+% we define the four dynamic macros to do something usefull
+% and execute the current cache macro.  ~\lastLN~ is run
+% first, testing if the line number in question may be on a
+% later page.  If so, disable ~\firstLN~, and go on to the
+% next page via ~\nextLN~.
+
+\def\testLastNumberedPage#1{\ifnum#1<\c@linenumber
+      \let\firstLN\@gobble
+  \fi}
+
+% Else, if ~\firstLN~ finds out that we need an earlier
+% page,  we start over from the beginning. Else, ~\nextLN~
+% will be disabled, and ~\pageLN~ will run
+% ~\gotNumberedPage~ with four arguments: the first line
+% number on this column, the page number, the column 
+% number, and the first line on the page.
+
+\def\testFirstNumberedPage#1{\ifnum#1>\c@linenumber
+     \def\nextLN##1{\testNextNumberedPage\LN@Pfirst}%
+  \else
+      \let\nextLN\@gobble
+      \def\pageLN{\gotNumberedPage{#1}}%
+  \fi}
+
+% We start with ~\pageLN~ disabled and ~\nextLN~ defined to
+% continue the search with the next page.
+
+\long\def \@gobblethree #1#2#3{}
+
+\def\testNumberedPage{%
+  \let\lastLN\testLastNumberedPage
+  \let\firstLN\testFirstNumberedPage
+  \let\pageLN\@gobblethree
+  \let\nextLN\testNextNumberedPage
+  \NumberedPageCache
+  }
+
+% When we switch to another page, we first have to make
+% sure that it is there.  If we are done with the last 
+% page, we probably need to run \TeX\ again, but for the
+% rest of this run, the cache macro will just return four
+% zeros. This saves a lot of time, for example if you have
+% half of an aux-file from an aborted run,  in the next run
+% the whole page-list would be searched in vain again and
+% again for the second half of the document.
+%
+% If there is another page, we iterate the search. 
+
+\def\testNextNumberedPage#1{\ifx#1\relax
+     \global\def\NumberedPageCache{\gotNumberedPage0000}%
+     \PackageWarningNoLine{lineno}%
+                    {Linenumber reference failed,
+      \MessageBreak  rerun to get it right}%
+   \else
+     \global\let\NumberedPageCache#1%
+   \fi
+   \testNumberedPage
+   }
+
+%                             \linelabel{demo2}
+%                             \marginpar{\tiny\raggedright
+%                                 Let's see if it finds the label
+%                                 on page \pageref{demo}, 
+%                                 line \ref{demo}, and back here
+%                                 on page \pageref{demo2}, line
+%                                 \ref{demo2}. 
+%                                 }%
+% To separate the official hooks from the internals there is
+% this equivalence, to hook in later for whatever purpose:
+
+\let\getLineNumber\testNumberedPage
+
+% So, now we got the page where the number is on.  We
+% establish if we are on an odd or even page, and calculate
+% the final line number to be printed.
+
+\newif\ifoddNumberedPage
+\newif\ifcolumnwiselinenumbers
+\columnwiselinenumbersfalse
+
+\def\gotNumberedPage#1#2#3#4{\oddNumberedPagefalse
+  \ifodd \if@twocolumn #3\else #2\fi\relax\oddNumberedPagetrue\fi
+  \advance\c@linenumber 1\relax
+  \ifcolumnwiselinenumbers
+     \subtractlinenumberoffset{#1}%
+  \else
+     \subtractlinenumberoffset{#4}%
+  \fi
+  }
+
+% You might want to run the pagewise mode with running line
+% numbers, or you might not.  It's your choice:
+
+\def\runningpagewiselinenumbers{%
+  \let\subtractlinenumberoffset\@gobble
+  }
+
+\def\realpagewiselinenumbers{%
+  \def\subtractlinenumberoffset##1{\advance\c@linenumber-##1\relax}%
+  }
+
+\realpagewiselinenumbers
+
+% For line number references, we need a protected call to
+% the whole procedure, with the requested line number stored
+% in the ~\c@linenumber~ counter.  This is what gets printed
+% to the aux-file to make a label:
+
+\def\thePagewiseLineNumber{\protect
+       \getpagewiselinenumber{\the\c@linenumber}}%
+
+% And here is what happens when the label is refered to:
+
+\def\getpagewiselinenumber#1{{%
+  \c@linenumber #1\relax\testNumberedPage
+  \thelinenumber
+  }}
+
+%                                                                            %
+% A summary of all per line expenses:
+%                                                     \begin{description}\item
+% [CPU:]  The ~\output~ routine is called for each line,
+%         and the page-search is done.
+%                                                                        \item
+% [DISK:] One line of output to the aux-file for each
+%         numbered line
+%                                                                        \item
+% [MEM:]  One macro per page. Great improvement over v1.02,
+%         which had one control sequence per line in
+%         addition.  It blew the hash table after some five
+%         thousand lines. 
+%                                                            \end{description}
+%
+%
+%
+%                                                                 \subsection{
+%                  Twocolumn mode (New v3.06)
+%                                                                            }
+%
+% Twocolumn mode requires another patch to the ~\output~ 
+% routine, in order to print a column tag to the .aux 
+% file.
+
+\let\@LN@orig@makecol\@makecol
+\def\@LN@makecol{%
+   \@LN@orig@makecol
+   \setbox\@outputbox \vbox{%
+      \boxmaxdepth \@maxdepth
+      \protected@write\@auxout{}{%
+          \string\@LN@col{\if@firstcolumn1\else2\fi}%
+      }%
+      \box\@outputbox
+   }% \vbox
+}
+
+\def\@LN@col#1{\def\@LN@column{#1}}
+\@LN@col{1}
+
+%
+%
+%
+%                                                                 \subsection{
+%                  Numbering modulo 5
+%                                                                            }
+% Most users want to have only one in five lines numbered.
+% ~\LineNumber~ is supposed to produce the outfit of the
+% line number attached to the line,  while ~\thelinenumber~
+% is used also for references, which should appear even if
+% they are not multiples of five.   
+
+\newcount\c@linenumbermodulo
+
+\def\themodulolinenumber{{\@tempcnta\c@linenumber
+  \divide\@tempcnta\c@linenumbermodulo
+  \multiply\@tempcnta\c@linenumbermodulo
+  \ifnum\@tempcnta=\c@linenumber\thelinenumber\fi
+  }}
+
+% The user command to set the modulo counter:
+
+\newcommand\modulolinenumbers[1][0]{%
+ \let\LineNumber\themodulolinenumber
+ \ifnum#1>1\relax
+   \c@linenumbermodulo#1\relax
+ \else\ifnum#1=1\relax
+   \def\LineNumber{\thelinenumber}%
+ \fi\fi
+ }
+
+\setcounter{linenumbermodulo}{5}
+\modulolinenumbers[1]
+
+%
+%                                                           \switchlinenumbers
+%                                                        \modulolinenumbers[1]
+%                                                                    \section{
+%                   Package options
+%                                                                            }
+% There is a bunch of package options, all of them
+% executing only user commands (see below).
+%
+% Options ~left~ (~right~) put the line numbers on the left
+% (right) margin.  This works in all modes.  ~left~ is the
+% default.
+
+\DeclareOption{left}{\leftlinenumbers*}
+
+\DeclareOption{right}{\rightlinenumbers*}
+
+% Option ~switch~ (~switch*~) puts the line numbers on the
+% outer (inner) margin of the text.   This requires running
+% the pagewise mode,  but we turn off the page offset
+% subtraction, getting sort of running numbers again.  The
+% ~pagewise~ option may restore true pagewise mode later.
+
+\DeclareOption{switch}{\setpagewiselinenumbers
+                       \switchlinenumbers
+                       \runningpagewiselinenumbers}
+
+\DeclareOption{switch*}{\setpagewiselinenumbers
+                        \switchlinenumbers*%
+                        \runningpagewiselinenumbers}
+
+% In twocolumn mode, we can switch the line numbers to 
+% the outer margin, and/or start with number 1 in each
+% column.  Margin switching is covered by the ~switch~ 
+% options.
+
+\DeclareOption{columnwise}{\setpagewiselinenumbers
+                           \columnwiselinenumberstrue
+                           \realpagewiselinenumbers}
+
+% The options ~pagewise~ and ~running~ select the major
+% linenumber mechanism.  ~running~ line numbers refer to a real
+% counter value, which can be reset for any paragraph,
+% even getting  multiple paragraphs on one page starting
+% with line number one.  ~pagewise~ line numbers get a
+% unique hidden number within the document,  but with the
+% opportunity to establish the page on which they finally
+% come to rest.  This allows the subtraction of the page
+% offset, getting the numbers starting with 1 on top of each
+% page, and margin switching in twoside formats becomes
+% possible.  The default mode is ~running~.  
+%
+% The order of declaration of the options is important here
+% ~pagewise~ must come after ~switch~, to overide running
+% pagewise mode. ~running~ comes last, to reset the running
+% line number mode, e.g, after selecting margin switch mode
+% for ~pagewise~ running.  Once more, if you specify all
+% three of the options ~[switch,pagewise,running]~, the
+% result is almost nothing, but if you later say
+% ~\pagewiselinenumbers~,  you get margin switching, with
+% real pagewise line numbers.
+%
+\DeclareOption{pagewise}{\setpagewiselinenumbers
+                         \realpagewiselinenumbers}
+
+\DeclareOption{running}{\setrunninglinenumbers}
+
+% The option ~modulo~ causes only those linenumbers to be
+% printed which are multiples of five. 
+
+\DeclareOption{modulo}{\modulolinenumbers\relax}
+
+% The package option ~mathlines~ switches the behavior of
+% the ~{linenomath}~ environment with its star-form.
+% Without this option, the ~{linenomath}~ environment does
+% not number the lines of the display, while the star-form
+% does.  With this option, its just the opposite.
+%
+%%% 1999-06-10: renamed ~displaymath~ to ~mathlines~.
+
+\DeclareOption{mathlines}{\linenumberdisplaymath}
+
+% ~displaymath~ now calls for wrappers of the standard 
+% LaTeX display math environment.  This was previously 
+% done by ~mlineno.sty~.
+
+\let\do@mlineno\relax
+\DeclareOption{displaymath}{\let\do@mlineno\@empty}
+
+% The ~hyperref~ package, via ~nameref~, requires three more 
+% groups in the second argment of a ~\newlabel~.  Well, why 
+% shouldn't it get them?  (New v3.07) The presencs of the
+% ~nameref~ package is now detected automatically
+% ~\AtBeginDocument~. (/New v3.07) (Fixed in v3.09)  We try
+% to be smart, and test ~\AtBeginDocument~ if the ~nameref~
+% package is loaded, but ~hyperref~ postpones the loading of
+% ~nameref~ too, so this is all in vain.
+
+\DeclareOption{hyperref}{\PackageWarningNoLine{lineno}{%
+                Option [hyperref] is obsolete. 
+  \MessageBreak The hyperref package is detected automatically.}}
+
+\AtBeginDocument{%
+  \@ifpackageloaded{nameref}{%
+    \def\@LN@ExtraLabelItems{{}{}{}}}{}}
+
+\ProcessOptions
+
+%                                                                 \subsection{
+%              Package Extensions
+%                                                                            }
+%
+%  The extensions in this section were previously supplied 
+%  in seperate ~.sty~ files.
+%
+%                                                              \subsubsection{
+%              $display math$
+%                                                                            }
+%
+%  The standard \LaTeX\ display math environments are
+%  wrapped in a ~{linenomath}~ environment.
+%
+% (New 3.05)  The ~[fleqn]~ option of the standard
+% \LaTeX\ classes defines the display math
+% environments such that line numbers appear just
+% fine.  Thus, we need not do any tricks when
+% ~[fleqn]~ is loaded, as indicated by presents of
+% the ~\mathindent~ register.           (/New 3.05)
+%
+% (New 3.05a)  for ~{eqnarray}~s we rather keep the
+% old trick.                            (/New 3.05a)
+%
+% (New 3.08) Wrap ~\[~ and ~\]~ into ~{linenomath}~, 
+% instead of ~{displaymath}~.  Also save the definition
+% of ~\equation~, instead of replicating the current 
+% \LaTeX\ definition.                    (/New 3.08)
+
+\ifx\do@mlineno\@empty
+ \@ifundefined{mathindent}{
+
+  \let\LN@displaymath\[
+  \let\LN@enddisplaymath\]
+  \renewcommand\[{\begin{linenomath}\LN@displaymath}
+  \renewcommand\]{\LN@enddisplaymath\end{linenomath}}
+
+  \let\LN@equation\equation
+  \let\LN@endequation\endequation
+  \renewenvironment{equation}
+     {\linenomath\LN@equation}
+     {\LN@endequation\endlinenomath}
+
+  }% \@ifundefined{mathindent}
+
+  \let\LN@eqnarray\eqnarray
+  \let\LN@endeqnarray\endeqnarray
+  \renewenvironment{eqnarray}
+     {\linenomath\LN@eqnarray}
+     {\LN@endeqnarray\endlinenomath}
+  
+\fi
+
+%                                                              \subsubsection{
+%      Line numbers in internal vertical mode
+%                                                                            }
+%
+% The command ~\internallinenumbers~ adds line numbers in 
+% internal vertical mode, but with limitations: we assume
+% fixed baseline skip.
+
+\def\internallinenumbers{\setrunninglinenumbers 
+     \let\@@par\internallinenumberpar
+     \ifx\@par\@@@par\let\@par\internallinenumberpar\fi
+     \ifx\par\@@@par\let\par\internallinenumberpar\fi
+     \ifx\@par\linenumberpar\let\@par\internallinenumberpar\fi
+     \ifx\par\linenumberpar\let\par\internallinenumberpar\fi
+     \@ifnextchar[{\resetlinenumber}%]
+                 {\@ifstar{\let\c@linenumber\c@internallinenumber
+                           \c@linenumber\@ne}{}}%
+     }
+
+\let\endinternallinenumbers\endlinenumbers
+\@namedef{internallinenumbers*}{\internallinenumbers*}
+\expandafter\let\csname endinternallinenumbers*\endcsname\endlinenumbers
+
+\newcount\c@internallinenumber
+\newcount\c@internallinenumbers
+
+\def\internallinenumberpar{\ifvmode\@@@par\else\ifinner\@@@par\else\@@@par
+     \begingroup
+        \c@internallinenumbers\prevgraf
+        \setbox\@tempboxa\hbox{\vbox{\makeinternalLinenumbers}}%
+        \dp\@tempboxa\prevdepth
+        \ht\@tempboxa\z@
+        \nobreak\vskip-\prevdepth
+        \nointerlineskip\box\@tempboxa
+     \endgroup 
+     \fi\fi
+     }
+
+\def\makeinternalLinenumbers{\ifnum\c@internallinenumbers>0\relax
+   \hbox to\z@{\makeLineNumber}\global\advance\c@linenumber\@ne
+   \advance\c@internallinenumbers\m@ne
+   \expandafter\makeinternalLinenumbers\fi
+   }
+
+%                                                              \subsubsection{
+%      Line number references with offset
+%                                                                            }
+%
+% This extension defines macros to refer to line
+% numbers with an offset, e.g., to refer to a line
+% which cannot be labeled directly (display math).
+% This was formerly knows as ~rlineno.sty~.
+%
+% To refer to a pagewise line number with offset:
+%                                                                \begin{quote}
+%   ~\linerefp[~<OFFSET>~]{~<LABEL>~}~
+%                                                                  \end{quote}
+% To refer to a running line number with offset:
+%                                                                \begin{quote}
+%   ~\linerefr[~<OFFSET>~]{~<LABEL>~}~
+%                                                                  \end{quote}
+% To refer to a line number labeled in the same mode as currently
+% selected:
+%                                                                \begin{quote}
+%   ~\lineref[~<OFFSET>~]{~<LABEL>~}~
+%                                                                  \end{quote}
+
+\newcommand\lineref{%
+  \ifx\c@linenumner\c@runninglinenumner
+     \expandafter\linerefr
+  \else
+     \expandafter\linerefp
+  \fi
+}
+
+\newcommand\linerefp[2][\z@]{{%
+   \let\@thelinenumber\thelinenumber
+   \edef\thelinenumber{\advance\c@linenumber#1\relax\noexpand\@thelinenumber}%
+   \ref{#2}%
+}}
+
+% This goes deep into \LaTeX s internals.
+
+\newcommand\linerefr[2][\z@]{{%
+   \def\@@linerefadd{\advance\c@linenumber#1}%
+   \expandafter\@setref\csname r@#2\endcsname
+   \@linerefadd{#2}%
+}}
+
+\newcommand\@linerefadd[2]{\c@linenumber=#1\@@linerefadd\relax
+                           \thelinenumber}
+
+%                                                              \subsubsection{
+%      Numbered quotation environments
+%                                                                            }
+%
+% The ~{numquote}~ and ~{numquotation}~
+% environments are like ~{quote}~ and
+% ~{quotation}~, except there will be line
+% numbers.  
+% 
+% An optional argument gives the number to count
+% from.  A star ~*~ (inside or outside the closing
+% ~}~) prevent the reset of the line numbers.
+% Default is to count from one.
+
+\newcommand\quotelinenumbers
+   {\@ifstar\linenumbers{\@ifnextchar[\linenumbers{\linenumbers*}}}
+
+\newdimen\quotelinenumbersep
+\quotelinenumbersep=\linenumbersep
+\let\quotelinenumberfont\linenumberfont
+
+\newcommand\numquotelist
+   {\leftlinenumbers
+    \linenumbersep\quotelinenumbersep
+    \let\linenumberfont\quotelinenumberfont
+    \addtolength{\linenumbersep}{-\@totalleftmargin}%
+    \quotelinenumbers
+   }
+
+\newenvironment{numquote}     {\quote\numquotelist}{\endquote}
+\newenvironment{numquotation} {\quotation\numquotelist}{\endquotation}
+\newenvironment{numquote*}    {\quote\numquotelist*}{\endquote}
+\newenvironment{numquotation*}{\quotation\numquotelist*}{\endquotation}
+
+%                                                              \subsubsection{
+%      Frame around a paragraph
+%                                                                            }
+%
+% The ~{bframe}~ environment draws a frame around
+% some text, across page breaks, if necessary.
+%
+% This works only for plain text paragraphs,
+% without special height lines. All lines must be
+% ~\baselineskip~ apart, no display math.
+
+\newenvironment{bframe}
+  {\par
+   \@tempdima\textwidth
+   \advance\@tempdima 2\bframesep
+   \setbox\bframebox\hbox to\textwidth{%
+      \hskip-\bframesep
+      \vrule\@width\bframerule\@height\baselineskip\@depth\bframesep
+      \advance\@tempdima-2\bframerule
+      \hskip\@tempdima
+      \vrule\@width\bframerule\@height\baselineskip\@depth\bframesep
+      \hskip-\bframesep
+   }%
+   \hbox{\hskip-\bframesep
+         \vrule\@width\@tempdima\@height\bframerule\@depth\z@}%
+   \nointerlineskip
+   \copy\bframebox
+   \nobreak
+   \kern-\baselineskip
+   \runninglinenumbers
+   \def\makeLineNumber{\copy\bframebox\hss}%
+  }
+  {\par
+   \kern-\prevdepth
+   \kern\bframesep
+   \nointerlineskip
+   \@tempdima\textwidth
+   \advance\@tempdima 2\bframesep
+   \hbox{\hskip-\bframesep
+         \vrule\@width\@tempdima\@height\bframerule\@depth\z@}%
+  }
+
+\newdimen\bframerule
+\bframerule=\fboxrule
+
+\newdimen\bframesep
+\bframesep=\fboxsep
+
+\newbox\bframebox
+
+%                                                                    \section{
+%                   The final touch
+%                                                                            }
+% There is one deadcycle for each line number.
+
+\advance\maxdeadcycles 100
+
+\endinput
+
+%                                                                    \section{
+%              The user commands
+%                                                                            }
+% The user command to turn on and off line numbering 
+% are 
+%                                                     \begin{description}\item
+% [|\linenumbers]                                                       \ \par
+%     Turn on line numbering in the current mode.
+%                                                                        \item
+% [|\linenumbers*]                                              \ \par$\qquad$
+%        and reset the line number to 1.
+%                                                      \def\NL{<number>]}\item
+% [|\linenumbers[\NL]                                           \ \par$\qquad$
+%        and start with <number>.  
+%                                                                        \item
+% [|\nolinenumbers]                                                     \ \par
+%     Turn off line numbering.
+%                                                                        \item
+% [|\runninglinenumbers*[\NL]                                           \ \par
+%     Turn on ~running~ line numbers, with the same optional
+%     arguments as ~\linenumbers~.  The numbers are running
+%     through the text over pagebreaks.  When you turn
+%     numbering off and on again, the numbers will continue,
+%     except, of cause, if you ask to reset or preset the
+%     counter.
+%                                                                        \item
+% [|\pagewiselinenumbers]                                               \ \par
+%     Turn on ~pagewise~ line numbers.  The lines on each
+%     page are numbered beginning with one at the first
+%     ~pagewise~ numbered line.
+%                                                                        \item
+% [|\resetlinenumber[\NL]                                               \ \par
+%     Reset ~[~Set~]~ the line number to 1
+%     ~[~<number>~]~.
+%                                                                        \item
+% [|\setrunninglinenumbers]                                             \ \par
+%     Switch to ~running~ line number mode. Do \emph{not}
+%     turn it on or off.
+%                                                                        \item
+% [|\setpagewiselinenumbers]                                            \ \par
+%     Switch to ~pagewise~ line number mode. Do \emph{not}
+%     turn it on or off.
+%                                                                        \item
+% [|\switchlinenumbers*]                                                \ \par
+%     Causes margin switching in pagewise modes. With the
+%     star,  put the line numbers on the inner margin.
+%                                                                        \item
+% [|\leftlinenumbers*]                                                  \ \par
+%                                                                        \item
+% [|\rightlinenumbers*]                                                 \ \par
+%     Set the line numbers in the left/right margin. With the
+%     star this works for both modes of operation, without
+%     the star only for the currently selected mode. 
+%                                                                        \item
+% [|\runningpagewiselinenumbers]                                        \ \par
+%     When using the pagewise line number mode,  do not
+%     subtract the page offset.  This results in running
+%     line numbers again,  but with the possibility to switch
+%     margins.  Be careful when doing line number
+%     referencing,  this mode status must be the same while
+%     setting the paragraph and during references.
+%                                                                        \item
+% [|\realpagewiselinenumbers]                                           \ \par
+%     Reverses the effect of ~\runningpagewiselinenumbers~.
+%                                                                        \item
+% [|\modulolinenumbers[\NL]                                             \ \par
+%     Give a number only to lines which are multiples of
+%     ~[~<number>~]~.  If <number> is not specified, the
+%     current value in the counter ~linenumbermodulo~ is
+%     retained.  <number>=1 turns this off without changing
+%     ~linenumbermodulo~.  The counter is initialized to 5.
+%                                                                        \item
+% [|\linenumberdisplaymath]                                             \ \par
+%     Number the lines of a display math in a ~{linenomath}~
+%     environment, but do not in a ~{linenomath*}~
+%     environment.  This is used by the package option
+%     ~[mathlines]~. 
+%                                                                        \item
+% [|\nolinenumberdisplaymath]                                           \ \par
+%     Do not Number the lines of a display math in a
+%     ~{linenomath}~ environment, but do in a
+%     ~{linenomath*}~ environment.  This is the default.
+%                                                                        \item
+% [|\linelabel]                                                         \ \par
+%     Set a ~\linelabel{~<foo>~}~ to the line number where
+%     this commands is in.  Refer to it with the \LaTeX\
+%     referencing commands ~\ref{~<foo>~}~ and
+%     ~\pageref{~<foo>~}~.
+%                                                            \end{description}
+% The commands can be used globally, locally within groups
+% or as environments.  It is important to know that they 
+% take action only when the ~\par~ is executed.  The
+% ~\end{~<mode>~linenumbers}~ commands provide a ~\par~.
+% Examples:
+%                                                                \begin{verse}
+%   ~{\linenumbers~  <text> ~\par}~                                         \\
+%                                                                         \ \\
+%   ~\begin{linenumbers}~                                                   \\
+%       <text>                                                              \\
+%   ~\end{linenumbers}~                                                     \\
+%                                                                         \ \\
+%   <paragraph> ~{\linenumbers\par}~                                        \\
+%                                                                         \ \\
+%   ~\linenumbers~                                                          \\
+%     <text> ~\par~                                                         \\
+%   ~\nolinenumbers~                                                        \\
+%                                                                         \ \\
+%   ~\linenumbers~                                                          \\
+%   <paragraph> ~{\nolinenumbers\par}~                                      \\
+%                                                                  \end{verse}
+%
+%
+%                                                                 \subsection{
+%                 Customization hooks
+%                                                                            }
+% There are several hooks to customize the appearance of the
+% line numbers, and some low level hooks for special
+% effects. 
+%                                                     \begin{description}\item
+% [|\thelinenumber]                                                     \ \par
+%     This macro should give the representation of the line
+%     number in the \LaTeX-counter ~linenumber~.  The
+%     default is provided by \LaTeX:                              \par$\qquad$
+%         ~\arabic{linenumber}~
+%                                                                        \item
+% [|\makeLineNumberLeft]                                                \ \par
+%     This macro is used to attach a line number to the left
+%     of the text page.  This macro should fill an ~\hbox to 0pt~ 
+%     which will be placed at the left margin of the
+%     page, with the reference point aligned to the line to
+%     which it should give a number.  Please use the macro
+%     ~\LineNumber~ to refer to the line number. 
+%
+%     The default definition is                                   \par$\qquad$
+%         ~\hss\linenumberfont\LineNumber\hskip\linenumbersep~
+%                                                                        \item
+% [|\makeLineNumberRight]                                               \ \par
+%     Like ~\makeLineNumberLeft~, but for line numbers on
+%     the right margin.
+%
+%     The default definition is                                   \par$\qquad$
+%        ~\linenumberfont\hskip\linenumbersep\hskip\textwidth~    \par$\qquad$
+%        ~\hbox to\linenumberwidth{\hss\LineNumber}\hss~
+%                                                                        \item
+% [|\linenumberfont]                                                    \ \par
+%     This macro is initialized to                                \par$\qquad$
+%         ~\normalfont\tiny\sffamily~
+%                                                                        \item
+% [|\linenumbersep]                                                     \ \par
+%     This dimension register sets the separation of the
+%     linenumber to the text. Default value is ~10pt~.
+%                                                                        \item
+% [|\linenumberwidth]                                                   \ \par
+%     This dimension register sets the width of the line
+%     number box on the right margin.  The distance of the
+%     right edge of the text to the right edge of the line
+%     number is ~\linenumbersep~ + ~\linenumberwidth~. The
+%     default value is ~10pt~.  
+%                                                                        \item
+% [|\theLineNumber] (for wizards)                                       \ \par
+%     This macro is called for printing a ~\newlabel~ entry
+%     to the aux-file.  Its definition depends on the mode.
+%     For running line numbers it's just ~\thelinenumber~,
+%     while in pagewise mode, the page offset subtraction
+%     is done in here.
+%                                                                        \item
+% [|\makeLineNumber] (for wizards)                                      \ \par
+%     This macro produces the line numbers.  The definition
+%     depends on the mode.  In the running line numbers
+%     mode it just expands ~\makeLineNumberLeft~.
+%                                                                        \item
+% [|\LineNumber] (for wizards)                                          \ \par
+%     This macro is called by ~\makeLineNumber~ to typeset
+%     the line number.  This hook is changed by the modulo
+%     mechanism.
+%                                                            \end{description}
+%                                                             \end{document}%D
+------------------------------------------------------------------------------
+
+echo "expect errors for unknown commands 'iffalse' and 'fi'";# SHELL
+awk '/A[W]K/' lineno.sty | awk -f - lineno.sty >lineno.tex;  # SHELL
+latex lineno; latex lineno; latex lineno; latex lineno;      # SHELL
+
+awk '/DOC A [W] K/' lineno.sty | awk -f - lineno.sty >lineno.doc; # DOC SH
+
+BEGIN{DOC=-1;                                     # AWK DOC A W K
+ BEGINCODE = "\\begin{code}\\begin{verbatim}";    # AWK
+ ENDCODE   = "\\end{verbatim}\n\\end{code}";   }  # AWK
+ BEGINCODE = "%    \\begin{macrocode}";           #     DOC A W K
+ ENDCODE   = "%    \\end{macrocode}";          }  #     DOC A W K
+/^[ \t]*$/ { ECNT++; next; }                      # AWK DOC A W K
+/\\documentclass/{ sub("article","ltxdoc") }      #     DOC A W K
+/%D$/      { sub("^%* *",""); sub("%D$","");      #     DOC A W K
+             print > "lineno.drv"; next        }  #     DOC A W K
+/^%%/      { next; }                              # AWK DOC A W K
+/^%/       { if (!DOC) { print ENDCODE; }         # AWK DOC A W K
+             DOC=1; ECNT=0;                       # AWK DOC A W K
+             sub("^% *","");                      # AWK
+             sub("^% *","% ");                    #     DOC A W K
+             print; next;                      }  # AWK DOC A W K
+DOC<0      { next }                               # AWK DOC A W K
+/^-+-$/    { if (!DOC) print ENDCODE; exit }      # AWK DOC A W K
+{ if (DOC) { ECNT=DOC=0; print BEGINCODE; }       # AWK DOC A W K
+  while (ECNT>0) { print " "; ECNT--; }           # AWK DOC A W K
+  print $0;                                    }  # AWK DOC A W K
+
diff --git a/doc/linuxtag.sty b/doc/linuxtag.sty
new file mode 100644 (file)
index 0000000..3820886
--- /dev/null
@@ -0,0 +1,67 @@
+% Modified for european a4 paper size and font size requirements for LT2K++
+%
+% TEMPLATE for Usenix papers, specifically to meet requirements of
+%  TCL97 committee.
+% originally a template for producing IEEE-format articles using LaTeX.
+%   written by Matthew Ward, CS Department, Worcester Polytechnic Institute.
+% adapted by David Beazley for his excellent SWIG paper in Proceedings,
+%   Tcl 96
+% turned into a smartass generic template by De Clarke, with thanks to
+%   both the above pioneers
+% use at your own risk.  Complaints to /dev/null.
+% make it two column with no page numbering, default is 10 point
+
+% include following in document.
+%\documentclass[a4paper,10pt]{article}
+%\usepackage{twocolumn,times}
+%\pagestyle{empty}
+
+% force european A4 paper format
+\setlength{\textwidth}{16.6cm}     % width of main text
+\setlength{\textheight}{25cm}    % height of main text
+\setlength{\topmargin}{-1.7in}     % Subtract default offset
+\addtolength{\topmargin}{2.2cm}    % Topmargin
+\setlength{\topskip}{0pt}        % between header and text
+\setlength{\headheight}{10pt}   % no header
+\setlength{\headsep}{10pt}      %
+\setlength{\oddsidemargin}{-1in}   % Subtract default offset
+\addtolength{\oddsidemargin}{2.2cm}  % odd page left margin
+\setlength{\evensidemargin}{-1in}  % Subtract default offset
+\addtolength{\evensidemargin}{2.2cm} % odd page left margin
+
+% set dimensions of columns, gap between columns, and space between paragraphs
+\setlength{\columnsep}{0.25in}
+\setlength{\parindent}{0pt}
+\setlength{\parskip}{\baselineskip}
+
+% started out with art10.sty and modified params to conform to IEEE format
+% further mods to conform to Usenix standard
+
+\makeatletter
+%as Latex considers descenders in its calculation of interline spacing,
+%to get 12 point spacing for normalsize text, must set it to 10 points
+\def\@normalsize{\@setsize\normalsize{12pt}\xpt\@xpt
+\abovedisplayskip 10pt plus2pt minus5pt\belowdisplayskip \abovedisplayskip
+\abovedisplayshortskip \z@ plus3pt\belowdisplayshortskip 6pt plus3pt
+minus3pt\let\@listi\@listI}
+
+%need a 12 pt font size for subsection and abstract headings
+\def\subsize{\@setsize\subsize{12pt}\xipt\@xipt}
+
+%make section titles bold and 12 point, 2 blank lines before, 1 after
+\def\section{\@startsection {section}{1}{\z@}{18pt plus 2pt minus 2pt}
+{2pt plus 2pt minus 2pt}{\large\bf}}
+
+%make subsection titles bold and 11 point, 1 blank line before, 1 after
+\def\subsection{\@startsection {subsection}{2}{\z@}{12pt plus 2pt minus 2pt}
+{12pt plus 2pt minus 2pt}{\subsize\bf}}
+
+\renewcommand\scriptsize{\@setfontsize\scriptsize\@viipt\@viiipt}
+\renewcommand\tiny{\@setfontsize\tiny\@vpt\@vipt}
+\renewcommand\large{\@setfontsize\large\@xiipt{12}}
+\renewcommand\Large{\@setfontsize\Large\@xivpt{14}}
+\renewcommand\LARGE{\@setfontsize\LARGE\@xviipt{18}}
+\renewcommand\huge{\@setfontsize\huge\@xxpt{24}}
+\renewcommand\Huge{\@setfontsize\Huge\@xxvpt{28}}
+
+\makeatother
diff --git a/doc/newseg.fig b/doc/newseg.fig
new file mode 100644 (file)
index 0000000..4a2f7ea
--- /dev/null
@@ -0,0 +1,84 @@
+#FIG 3.2
+Landscape
+Center
+Inches
+Letter  
+100.00
+Single
+-2
+1200 2
+6 5550 900 7425 3675
+2 2 0 2 0 7 50 0 -1 0.000 0 0 -1 0 0 5
+        5625 2850 6750 2850 6750 3450 5625 3450 5625 2850
+2 1 1 2 0 7 50 0 -1 6.000 0 0 -1 0 0 2
+        6750 2700 6750 3600
+2 2 0 2 0 7 50 0 44 0.000 0 0 -1 0 0 5
+        6750 2850 7350 2850 7350 3450 6750 3450 6750 2850
+2 2 0 2 0 7 50 0 -1 0.000 0 0 -1 0 0 5
+        5625 1200 6750 1200 6750 1800 5625 1800 5625 1200
+2 2 1 2 0 7 50 0 -1 6.000 0 0 -1 0 0 5
+        5625 975 7350 975 7350 1950 5625 1950 5625 975
+2 1 1 2 0 7 50 0 -1 6.000 0 0 -1 0 0 2
+        6750 975 6750 1950
+2 2 0 2 0 7 50 0 44 0.000 0 0 -1 0 0 5
+        6750 1200 7350 1200 7350 1800 6750 1800 6750 1200
+2 2 1 2 0 7 50 0 -1 6.000 0 0 -1 0 0 5
+        5625 2700 7350 2700 7350 3600 5625 3600 5625 2700
+4 0 0 50 0 0 12 0.0000 4 180 885 5775 3225 .data ... .got\001
+4 0 0 50 0 0 12 0.0000 4 135 315 6825 3225 .bss\001
+4 0 0 50 0 0 12 0.0000 4 180 885 5775 1575 .data ... .got\001
+4 0 0 50 0 0 12 0.0000 4 135 315 6825 1575 .bss\001
+-6
+6 7950 2775 10875 3525
+2 2 0 2 0 7 50 0 -1 6.000 0 0 -1 0 0 5
+        8025 2850 9000 2850 9000 3450 8025 3450 8025 2850
+2 2 0 2 0 7 50 0 -1 0.000 0 0 -1 0 0 5
+        9825 2850 9000 2850 9000 3450 9825 3450 9825 2850
+2 2 0 2 0 7 50 0 -1 6.000 0 0 -1 0 0 5
+        9825 2850 10800 2850 10800 3450 9825 3450 9825 2850
+4 0 0 50 0 0 12 0.0000 4 180 780 9000 3225 .gnu.liblist\001
+4 0 0 50 0 0 12 0.0000 4 180 930 9825 3225 .gnu.conflict\001
+4 0 0 50 0 0 12 0.0000 4 180 525 8175 3225 .dynstr\001
+-6
+2 2 0 2 0 7 50 0 -1 0.000 0 0 -1 0 0 5
+        600 1200 2100 1200 2100 1800 600 1800 600 1200
+2 2 0 2 0 7 50 0 -1 6.000 0 0 -1 0 0 5
+        2100 1200 2775 1200 2775 1800 2100 1800 2100 1200
+2 2 0 2 0 7 50 0 -1 0.000 0 0 -1 0 0 5
+        4950 1200 2775 1200 2775 1800 4950 1800 4950 1200
+2 2 1 2 0 7 50 0 -1 6.000 0 0 -1 0 0 5
+        450 2700 4950 2700 4950 3600 450 3600 450 2700
+2 2 1 2 0 7 50 0 -1 6.000 0 0 -1 0 0 5
+        450 975 4950 975 4950 1950 450 1950 450 975
+2 2 0 2 0 7 50 0 -1 0.000 0 0 -1 0 0 5
+        4950 2850 2775 2850 2775 3450 4950 3450 4950 2850
+2 2 0 2 0 7 50 0 -1 0.000 0 0 -1 0 0 5
+        750 2850 2250 2850 2250 3450 750 3450 750 2850
+2 2 1 2 0 7 50 0 -1 6.000 0 0 -1 0 0 5
+        8025 2700 10800 2700 10800 3600 8025 3600 8025 2700
+2 1 0 1 0 7 50 0 -1 4.000 0 0 -1 1 0 2
+       0 0 1.00 60.00 120.00
+        1350 1950 1500 2700
+2 1 0 1 0 7 50 0 -1 4.000 0 0 -1 1 0 11
+       0 0 1.00 60.00 120.00
+        3975 1950 3975 2025 3975 2100 3975 2175 3975 2250 3975 2325
+        3975 2400 3975 2475 3975 2550 3975 2625 3975 2700
+2 1 0 1 0 7 50 0 -1 4.000 0 0 -1 1 0 11
+       0 0 1.00 60.00 120.00
+        6150 1950 6150 2025 6150 2100 6150 2175 6150 2250 6150 2325
+        6150 2400 6150 2475 6150 2550 6150 2625 6150 2700
+2 1 0 1 0 7 50 0 -1 4.000 0 0 -1 1 0 11
+       0 0 1.00 60.00 120.00
+        6975 1950 6975 2025 6975 2100 6975 2175 6975 2250 6975 2325
+        6975 2400 6975 2475 6975 2550 6975 2625 6975 2700
+2 1 0 1 0 7 50 0 -1 4.000 0 0 -1 1 0 2
+       0 0 1.00 60.00 120.00
+        2100 1950 8025 2700
+2 1 0 1 0 7 50 0 -1 4.000 0 0 -1 1 0 2
+       0 0 1.00 60.00 120.00
+        2775 1950 9000 2700
+4 0 0 50 0 0 12 0.0000 4 180 1335 675 1575 .interp ... .dynsym\001
+4 0 0 50 0 0 12 0.0000 4 180 525 2175 1575 .dynstr\001
+4 0 0 50 0 0 12 0.0000 4 180 1890 2850 1575 .gnu.version ... .eh_frame\001
+4 0 0 50 0 0 12 0.0000 4 180 1335 825 3225 .interp ... .dynsym\001
+4 0 0 50 0 0 12 0.0000 4 180 1890 2850 3225 .gnu.version ... .eh_frame\001
diff --git a/doc/prelink.8 b/doc/prelink.8
new file mode 100644 (file)
index 0000000..e5a0062
--- /dev/null
@@ -0,0 +1,309 @@
+.TH prelink 8 "01 March 2007"
+.SH NAME
+prelink \- prelink ELF shared libraries and binaries to speed up startup time
+.SH SYNOPSIS
+prelink
+.RB [OPTION...]\ [FILES]
+.SH DESCRIPTION
+.B prelink
+is a program that modifies ELF shared libraries and ELF dynamically linked
+binaries in such a way that the time needed for the dynamic linker to 
+perform relocations at startup significantly decreases.  
+Due to fewer relocations, the
+run-time memory consumption decreases as well (especially the 
+number of unshareable pages).  
+The prelinking information is only used at startup time if none of the 
+dependent libraries have changed since prelinking; otherwise programs are
+relocated normally.
+.PP
+.B prelink
+first collects ELF binaries to be prelinked and all the ELF shared
+libraries they depend on. Then it assigns a unique virtual address space
+slot to each library and relinks the shared library to that base address.
+When the dynamic linker attempts to load such a library, unless that virtual
+address space slot is already occupied, it maps the library into the given 
+slot.
+After this is done,
+.BR prelink ,
+with the help of dynamic linker, resolves all relocations in the binary or
+library against its dependent libraries and stores the relocations into the
+ELF object.
+It also stores a list of all dependent libraries together with their
+checksums into the binary or library.
+For binaries, it also computes a list of
+.IR conflicts
+(relocations that resolve differently in the binary's symbol search scope
+than in the smaller search scope in which the dependent library was
+resolved) and stores it into a special ELF section.
+.PP
+At runtime, the dynamic linker first checks whether all dependent libraries
+were successfully mapped into their designated address space slots, and
+whether they have not changed since the prelinking was done.
+If all checks are successful, the dynamic linker just replays the list of
+conflicts (which is usually significantly shorter than total number of
+relocations) instead of relocating each library.
+.SH OPTIONS
+.TP
+.B \-v\ \-\-verbose
+Verbose mode.
+Print the virtual address slots assigned to libraries and what binary
+or library is currently being prelinked.
+.TP
+.B \-n\ \-\-dry\-run
+Don't actually prelink anything; just collect the binaries/libraries, assign
+them addresses, and with
+.B \-v 
+print what would be prelinked.
+.TP
+.B \-a \-\-all
+Prelink all binaries and dependent libraries found in directory hierarchies
+specified in
+.IR /etc/prelink.conf .
+Normally, only binaries specified on the command line and their dependent
+libraries are prelinked.
+.TP
+.B \-m \-\-conserve\-memory
+When assigning addresses to libraries, allow overlap of address space slots
+provided that the two libraries are not present together in any of the
+binaries or libraries. This results in a smaller virtual address space range
+used for libraries.  On the other hand, if 
+.B prelink
+sees a binary during incremental prelinking 
+which puts together two libraries which were not present
+together in any other binary and were given the same virtual address space
+slots, then the binary cannot be prelinked.
+Without this option, 
+each library is assigned a unique virtual address space slot.
+.TP
+.B \-R \-\-random
+When assigning addresses to libraries, start with a random address within
+the architecture-dependent virtual address space range.
+This can make some buffer overflow attacks slightly harder to exploit,
+because libraries are not present on the same addresses across different
+machines.
+Normally, assigning virtual addresses starts at the bottom of the 
+architecture-dependent range.
+.TP
+.B \-r \-\-reloc\-only=ADDRESS
+Instead of prelinking, just relink given shared libraries to the specified
+base address.
+.TP
+.B \-N \-\-no\-update\-cache
+Don't save the cache file after prelinking. 
+Normally, the list of libraries (and with
+.B \-m
+binaries also) is stored into the
+.I /etc/prelink.cache
+file together with their given address space slots and dependencies, so
+the cache can be used during incremental prelinking (prelinking without
+.B \-a
+option).
+.TP
+.B \-c \-\-config\-file=CONFIG
+Specify an alternate config file instead of default
+.IR /etc/prelink.conf .
+.TP
+.B \-C \-\-cache\-file=CACHE
+Specify an alternate cache file instead of default
+.IR /etc/prelink.cache .
+.TP
+.B \-f \-\-force
+Force re-prelinking even for already prelinked objects whose 
+dependencies are unchanged. 
+This option causes new virtual address space slots to
+be assigned to all libraries.
+Normally, only binaries or libraries which are either not prelinked yet, or
+whose dependencies have changed, are prelinked.
+.TP
+.B \-q \-\-quick
+Run prelink in quick mode.  This mode checks just mtime and ctime timestamps
+of libraries and binaries stored in the cache file.  If they are unchanged
+from the last prelink run, it is assumed that the library in question did
+not change, without parsing or verifying its ELF headers.
+.TP
+.B \-p \-\-print\-cache
+Print the contents of the cache file (normally
+.IR /etc/prelink.cache )
+and exit.
+.TP
+.B \-\-dynamic\-linker=LDSO
+Specify an alternate dynamic linker instead of the default.
+.TP
+.B \-\-ld\-library\-path=PATH
+Specify a special
+.IR LD_LIBRARY_PATH
+to be used when
+.B prelink
+queries the dynamic linker about symbol resolution details.
+.TP
+.B \-\-libs\-only
+Only prelink ELF shared libraries, don't prelink any binaries.
+.TP
+.B \-h \-\-dereference
+When processing command line directory arguments, follow symbolic links when
+walking directory hierarchies.
+.TP
+.B \-l \-\-one\-file\-system
+When processing command line directory arguments, limit directory tree walk
+to a single file system.
+.TP
+.B \-u \-\-undo
+Revert binaries and libraries to their original content before they were
+prelinked.
+Without the
+.I \-a
+option, this causes only the binaries and libraries specified on the command
+line to be reverted to their original state (and e.g. not their
+dependencies). If used together with the
+.I \-a
+option, all binaries and libraries from command line, all their dependencies,
+all binaries found in directories specified on command line and in the config
+file, and all their dependencies are undone.
+.TP
+.B \-y \-\-verify
+Verifies a prelinked binary or library.
+This option can be used only on a single binary or library. It first applies
+an
+.I \-\-undo
+operation on the file, then prelinks just that file again and compares this
+with the original file. If both are identical, it prints the file after
+.I \-\-undo
+operation on standard output and exits with zero status. Otherwise it exits
+with error status.
+Thus if
+.I \-\-verify
+operation returns zero exit status and its standard output is
+equal to the content of the binary or library before prelinking, you can be
+sure that nobody modified the binaries or libraries after prelinking.
+Similarly with message digests and checksums (unless you trigger the
+improbable case of modified file and original file having the same digest
+or checksum).
+.TP
+.B \-\-md5
+This is similar to
+.I \-\-verify
+option, except instead of outputting the content of the binary or library
+before prelinking to standard output, MD5 digest is printed.
+See
+.BR md5sum (1).
+.TP
+.B \-\-sha
+This is similar to
+.I \-\-verify
+option, except instead of outputting the content of the binary or library
+before prelinking to standard output, SHA1 digest is printed.
+See
+.BR sha1sum (1).
+.TP
+.B \-\-exec\-shield \-\-no\-exec\-shield
+On IA-32, if the kernel supports Exec-Shield, prelink attempts to lay libraries
+out similarly to how the kernel places them (i.e. if possible below the binary,
+most widely used into the ASCII armor zone).  These switches allow overriding
+prelink detection of whether Exec-Shield is supported or not.
+.TP
+.B \-b \-\-black\-list=PATH
+This option allows blacklisting certain paths, libraries or binaries.
+Prelink will not touch them during prelinking.
+.TP
+.B \-o \-\-undo\-output=FILE
+When performing an
+.B \-\-undo
+operation, don't overwrite the prelinked binary or library with its
+original content (before it was prelinked), but save that into the specified
+file.
+.TP
+.B \-V \-\-version
+Print version and exit.
+.TP
+.B \-? \-\-help
+Print short help and exit.
+.SH ARGUMENTS
+Command-line arguments should be either directory hierarchies (in which case
+.I \-l
+and
+.I \-h
+options apply), or particular ELF binaries or shared libraries.
+Specifying a shared library
+explicitly on the command line causes it to be prelinked even if no binary
+is linked against it.  Otherwise, binaries are collected together and only
+the libraries they depend on are prelinked with them.
+.SH EXAMPLES
+.RS
+# /usr/sbin/prelink -avmR
+.RE
+prelinks all binaries found in directories specified in
+.I /etc/prelink.conf
+and all their dependent libraries, assigning libraries unique virtual
+address space slots only if they ever appear together, and starts
+assigning libraries at a random address.
+.RS
+# /usr/sbin/prelink -vm ~/bin/progx
+.RE
+prelinks ~/bin/progx program and all its dependent libraries (unless
+they were prelinked already e.g. during
+.I prelink \-a
+invocation).
+.RS
+# /usr/sbin/prelink -au
+.RE
+reverts all binaries and libraries to their original content.
+.RS
+# /usr/sbin/prelink -y /bin/prelinked_prog > /tmp/original_prog; echo $?
+verifies whether /bin/prelinked_prog is unchanged.
+.SH FILES
+.PD 0
+.TP 20
+.B /etc/prelink.cache
+Binary file containing a list of prelinked libraries and/or binaries together
+with their assigned virtual address space slots and dependencies.
+You can run
+.I /usr/sbin/prelink -p
+to see what is stored in there.
+.TP 20
+.B /etc/prelink.conf
+Configuration file containing a list of directory hierarchies that
+contain ELF shared libraries or binaries which should be prelinked.
+This configuration file is used in
+.B \-a
+mode to find binaries which should be prelinked and also, no matter whether
+.B \-a
+is given or not, to limit which dependent shared libraries should be
+prelinked. If
+.B prelink
+finds a dependent library of some binary or other library which is not
+present in any of the directories specified either in
+.B /etc/prelink.conf
+or on the command line, then it cannot be prelinked.
+Each line of the config file should be either a comment starting with
+.BR # ,
+or a directory name, or a blacklist specification.  Directory names can be prefixed
+by the
+.B \-l
+switch, meaning the tree walk of the given directory is only limited to one
+file system; or the
+.B \-h
+switch, meaning the tree walk of the given directory follows symbolic links.
+A blacklist specification should be prefixed by
+.B \-b
+and optionally also
+.B \-l
+or
+.B \-h
+if needed.  A blacklist entry can be either an absolute directory name 
+(in that case all files in that directory hierarchy are ignored by the
+prelinker); 
+an absolute filename
+(then that particular library or binary is skipped);
+or a glob pattern without a
+.B /
+character in it (then all files matching that glob in any directory
+are ignored).
+.SH SEE ALSO
+.BR ldd (1),
+.BR ld.so (8).
+.SH BUGS
+.LP
+.B prelink
+Some architectures, including IA-64 and HPPA, are not yet supported.
+.SH AUTHORS
+Jakub Jelinek <jakub@redhat.com>.
diff --git a/doc/prelink.conf b/doc/prelink.conf
new file mode 100644 (file)
index 0000000..0b0e8ca
--- /dev/null
@@ -0,0 +1,35 @@
+# This config file contains a list of directories both with binaries
+# and libraries prelink should consider by default.
+# If a directory name is prefixed with `-l ', the directory hierarchy
+# will be walked as long as filesystem boundaries are not crossed.
+# If a directory name is prefixed with `-h ', symbolic links in a
+# directory hierarchy are followed.
+# Directories or files with `-b ' prefix will be blacklisted.
+-b *.la
+-b *.png
+-b *.py
+-b *.pl
+-b *.pm
+-b *.sh
+-b *.xml
+-b *.xslt
+-b *.a
+-b *.js
+-b /lib/modules
+-b /usr/lib/locale
+-b /usr/X11R6/lib{,64}/X11/xfig
+-l /bin
+-l /usr/bin
+-l /sbin
+-l /usr/sbin
+-l /usr/X11R6/bin
+-l /usr/kerberos/bin
+-l /usr/games
+-l /usr/libexec
+-l /var/ftp/bin
+-l /lib{,64}
+-l /usr/lib{,64}
+-l /usr/X11R6/lib{,64}
+-l /usr/kerberos/lib{,64}
+-l /usr/X11R6/LessTif
+-l /var/ftp/lib{,64}
diff --git a/doc/prelink.pdf b/doc/prelink.pdf
new file mode 100644 (file)
index 0000000..0783007
Binary files /dev/null and b/doc/prelink.pdf differ
diff --git a/doc/prelink.tex b/doc/prelink.tex
new file mode 100644 (file)
index 0000000..5075030
--- /dev/null
@@ -0,0 +1,3643 @@
+\documentclass[twoside]{article}
+
+\def\docversion{0.7}
+% timezone: +01 == CET
+\def\timezone{+01}
+% Uncomment for draft print.
+\def\isdraft{1}
+
+\newif\ifpdf
+\ifx\pdfoutput\undefined
+  \pdffalse % we are not running PDFLaTeX
+\else
+  \pdfoutput=1 % we are running PDFLaTeX
+  \pdftrue
+\fi
+
+\usepackage{linuxtag}
+\usepackage{times}
+\usepackage{makeidx}
+\usepackage{nomencl}
+\usepackage[square]{natbib}
+\usepackage{marvosym}
+\usepackage{longtable}
+\renewcommand\bibsection{\chapter{\bibname}}
+
+\ifpdf
+  \usepackage[pdftex]{graphics}
+  \usepackage{type1cm}
+  \usepackage{thumbpdf}
+  \pdfcompresslevel9
+  \pdfinfo{/CreationDate (D:20030924012900\timezone'00')}
+  % The following code to set /ModDate comes from Heiko Oberdiek's paper
+  % one PDF & hyperref.  I only added the \timezone stuff.
+  \begingroup
+    \def\twodigits#1{\ifnum#1<10 0\fi\the#1}%
+    \count0=\time \divide\count0 by 60
+    \edef\x{\twodigits{\count0}}%
+    \multiply\count0 by 60
+    \count1=\time \advance\count1 by -\count0
+    \edef\x{\x\twodigits{\count1}}%
+    \edef\x{/ModDate (D:\the\year \twodigits\month \twodigits\day \x 00\timezone'00')}%
+    \expandafter\endgroup
+  \expandafter\pdfinfo\expandafter{\x}%
+  \input pdfcolor
+
+  %% For a "Draft" mark on the pages uncomment the following:
+  \ifx\isdraft\undefined
+    \relax
+  \else
+    \usepackage{eso-pic}
+    \usepackage{color}
+    \makeatletter
+      \AddToShipoutPicture{\rm%
+        \setlength{\@tempdimb}{.5\paperwidth}%
+        \setlength{\@tempdimc}{.5\paperheight}%
+        \setlength{\unitlength}{1pt}%
+        \put(\strip@pt\@tempdimb,\strip@pt\@tempdimc){%
+          \makebox(0,0){\rotatebox{45}{\textcolor[gray]{0.9}{\fontsize{5cm}{5cm}\selectfont{Draft}}}}
+        }
+    }
+    \makeatother
+  \fi
+\else
+  \usepackage[dvips]{graphics}
+\fi
+
+\def\titlecolor{NavyBlue}
+\makeatletter
+\def\@sect#1#2#3#4#5#6[#7]#8{%
+  \ifnum #2>\c@secnumdepth
+    \let\@svsec\@empty
+  \else
+    \refstepcounter{#1}%
+    \protected@edef\@svsec{\@seccntformat{#1}\relax}%
+  \fi
+  \@tempskipa #5\relax
+  \ifdim \@tempskipa>\z@
+    \begingroup
+      \hbox{\expandafter\csname\titlecolor\endcsname#6{%
+        \@hangfrom{\hskip #3\relax\@svsec}%
+          \interlinepenalty \@M #8\@@par}\Black}%
+    \endgroup
+    \csname #1mark\endcsname{#7}%
+    \addcontentsline{toc}{#1}{%
+      \ifnum #2>\c@secnumdepth \else
+        \protect\numberline{\csname the#1\endcsname}%
+      \fi
+      #7}%
+  \else
+    \def\@svsechd{%
+      \hbox{\expandafter\csname\titlecolor\endcsname#6{\hskip #3\relax
+      \@svsec #8}%
+      \csname #1mark\endcsname{#7}\Black}%
+      \addcontentsline{toc}{#1}{%
+        \ifnum #2>\c@secnumdepth \else
+          \protect\numberline{\csname the#1\endcsname}%
+        \fi
+        #7}}%
+  \fi
+  \@xsect{#5}}
+\def\@ssect#1#2#3#4#5{%
+  \@tempskipa #3\relax
+  \ifdim \@tempskipa>\z@
+    \begingroup
+      \expandafter\csname\titlecolor\endcsname#4{%
+        \@hangfrom{\hskip #1}%
+          \interlinepenalty \@M #5\@@par}\Black%
+    \endgroup
+  \else
+    \def\@svsechd{\expandafter\csname\titlecolor\endcsname#4{\hskip #1\relax #5}\Black}%
+  \fi
+  \@xsect{#3}}
+\makeatother
+
+\usepackage{fancyheadings}
+\pagestyle{fancy}
+\rhead{}
+\chead{}
+\lhead{}
+\rfoot[\sl Prelink]{\thepage}
+\lfoot[\thepage]{\sl Jakub Jel\'\i nek}
+\ifx\isdraft\undefined
+\cfoot{Version \docversion}
+\else
+\cfoot{Draft \docversion}
+\fi
+\renewcommand{\headrulewidth}{0.4pt}
+\renewcommand{\footrulewidth}{0.4pt}
+
+\ifx\isdraft\undefined
+\relax
+\else
+\usepackage[mathlines]{lineno}
+\fi
+
+\usepackage{graphicx}
+\usepackage{hyperref}
+\hypersetup{
+  bookmarksnumbered,
+  bookmarksopen=true,
+  pdfpagemode=UseOutlines,
+  pdfkeywords={Prelink, ELF, DSO, Shared Library, Dynamic Linking, Linux}
+}
+\usepackage{prelinklisting}
+
+\def\tts#1{\texttt{\small #1}}
+
+\setcounter{dbltopnumber}{3}
+
+
+\makeatletter
+\newcommand{\annotate}[2][]{%
+  \marginpar{%
+    \pdfstringdef\x@title{#1}%
+    \edef\r{\string\r}%
+    \pdfstringdef\x@contents{#2}%
+    \pdfannot
+    width 50em%\linewidth
+    height .5\baselineskip
+    depth 2.5\baselineskip
+    {
+      /Subtype /Text
+      /T (\x@title)
+      /Contents (\x@contents)
+      }%
+    }
+  }
+\makeatother
+
+\makeglossary
+\makeindex
+
+\begin{document}
+
+  \makeatletter
+  \newcommand\orgmaketitle{}
+  \let\orgmaketitle\maketitle
+  \def\maketitle{%
+    \hypersetup{
+      pdftitle={\@title},
+      pdfsubject={Description of prelink tool},
+      pdfauthor={\@author}
+    }%
+    \orgmaketitle
+  }
+  \makeatother
+
+\title{Prelink}
+\author{Jakub Jel\'\i nek\\
+Red Hat, Inc.\\
+{\small\tt\href{mailto:jakub@redhat.com}{jakub@redhat.com}}}
+
+%\maketitle
+
+%\tableofcontents
+%\vfil\break
+%\listoftables
+%\vfil\break
+%\listofprelinklistings
+%\vfil\break
+%\listoffigures
+%\vfil\break
+
+\maketitle
+
+\begin{center}
+\begin{abstract}
+\vspace*{.5\baselineskip}
+\parbox{0.8\textwidth}{%
+Prelink is a tool designed to speed up dynamic linking of ELF
+programs on various Linux architectures.
+It speeds up start up of OpenOffice.org 1.1 by 1.8s from 5.5s on 651MHz Pentium III.}
+\end{abstract}
+\end{center}
+
+\ifx\isdraft\undefined
+  \relax
+\else
+  \linenumbers
+  \linenumbersep4pt
+\fi
+
+\section{Preface}
+
+In 1995, Linux changed its binary format from \tts{a.out} to \tts{ELF}.
+The \tts{a.out} binary format was very inflexible and shared libraries
+were pretty hard to build.  Linux's shared libraries in \tts{a.out} are position
+dependent and each had to be given a unique virtual address space slot
+at link time.  Maintaining these assignments was pretty hard even when
+there were just a few shared libraries, there used to be a central address
+registry maintained by humans in form of a text file, but it is certainly
+impossible to do these days when there are thousands of different shared libraries
+and their size, version and exported symbols are constantly changing.
+On the other side, there was just minimum amount of work the dynamic
+linker had to do in order to load these shared libraries, as relocation
+handling and symbol lookup was only done at link time.  The dynamic linker
+used the \tts{uselib} system call which just mapped the named library
+into the address space (with no segment or section protection differences,
+the whole mapping was writable and executable).
+
+The \href{http://www.caldera.com/developers/devspecs/gabi41.pdf}%
+{\tts{ELF}}
+\footnote{As described in generic ABI document [1] and various processor
+specific ABI supplements [2], [3], [4], [5], [6], [7], [8].}
+binary format is one of the most flexible binary formats,
+its shared libraries are easy to build and there is no need for a central
+assignment of virtual address space slots.  Shared libraries are position
+independent and relocation handling and symbol lookup are done partly
+at the time the executable is created and partly at runtime.  Symbols in shared
+libraries can be overridden at runtime by preloading a new shared
+library defining those symbols or without relinking an executable by adding
+symbols to a shared library which is searched up earlier during symbol
+lookup or by adding new dependent shared libraries to a library used by the
+program.  All these improvements have their price, which is a slower
+program startup, more non-shareable memory per process and runtime cost
+associated with position independent code in shared libraries.
+
+Program startup of \tts{ELF} programs is slower than startup of \tts{a.out}
+programs with shared libraries, because the dynamic linker has much more work
+to do before calling program's entry point.  The cost of loading libraries
+is just slightly bigger, as \tts{ELF} shared libraries have typically
+separate read-only and writable segments, so the dynamic linker
+has to use different memory protection for each segment.
+The main difference is in relocation handling and associated symbol lookup.
+In the \tts{a.out} format there was no relocation handling or symbol lookup at runtime.
+In \tts{ELF}, this cost is much more important today than it used to be
+during \tts{a.out} to \tts{ELF} transition in Linux, as especially GUI
+programs keep constantly growing and start to use more and more shared
+libraries.  5 years ago programs using more than 10 shared libraries
+were very rare, these days most of the GUI programs link against around
+40 or more shared and in extreme cases programs use even more than 90
+shared libraries.  Every shared library adds its set of dynamic relocations
+to the cost and enlarges symbol search scope,
+\nomenclature{Symbol Search Scope}{The sequence of \tts{ELF} objects in
+which a symbol is being looked up.  When a symbol definition is found,
+the searching stops and the found symbol is returned.  Each program
+has a global search scope, which starts by the executable, is typically
+followed by the immediate dependencies of the executable and then their
+dependencies in breadth search order (where only first occurrence
+of each shared library is kept).  If \tts{DT\_FILTER}
+or \tts{DT\_AUXILIARY} dynamic tags are used the order is slightly
+different.  Each shared library loaded with \tts{dlopen} has its
+own symbol search scope which contains that shared library and
+its dependencies.  \tts{Prelink} operates also with natural
+symbol search scope of each shared library, which is the global
+symbol search scope the shared library would have if it were started
+as the main program}
+so in addition to doing more symbol lookups, each symbol
+lookup the application has to perform is on average more expensive.
+Another factor increasing the cost is the length of symbol names
+which have to be compared when finding symbol in the symbol hash table of
+a shared library.  C++ libraries tend to have extremely long symbol
+names and unfortunately the new \href{http://www.codesourcery.com/cxx-abi/}%
+{C++ ABI} puts namespaces and class names first and method names last
+in the mangled names, so often symbol names differ only in last
+few bytes of very long names.
+
+Every time a relocation is applied the entire memory page
+\nomenclature{Page}{Memory block of fixed size which virtual memory
+subsystem deals with as a unit.  The size of the page depends on
+the addressing hardware of the processor, typically pages are 4K or 8K,
+in some cases bigger}
+containing the address which is written to must be loaded into memory.
+The operating system does a copy-on-write operation which also has the
+consequence that the physical memory of the memory page cannot anymore
+be shared with other processes.
+With \tts{ELF}, typically all of program's Global Offset Table,
+\nomenclature{Global Offset Table (\tts{GOT})}{When position independent
+code needs to build address which requires dynamic relocation, instead
+of building it as constant in registers and applying a dynamic relocation
+against the read-only segment (which would mean that any pages of the
+read-only segment where relocations are applied cannot be shared between
+processes anymore), it loads the address from an offset table
+private to each shared library, which is created by the linker.
+The table is in writable segment and relocations are applied against it.
+Position independent code uses on most architectures a special \tts{PIC}
+register which points to the start of the Global Offset Table}
+constants and variables containing pointers to objects in shared libraries, etc.
+are written into before the dynamic linker passes control over to the program.
+
+On most architectures (with some exceptions like \tts{AMD64} architecture)
+position independent code requires that one register needs to be dedicated as
+\tts{PIC} register and thus cannot be used in the functions for other purposes.
+This especially degrades performance on register-starved
+architectures like \tts{IA-32}.  Also, there needs to be some code to
+set up the \tts{PIC} register, either invoked as part of function prologues,
+or when using function descriptors in the calling sequence.
+
+\tts{Prelink} is a tool which (together with corresponding dynamic linker
+and linker changes) attempts to bring back some of the \tts{a.out}
+advantages (such as the speed and less COW'd pages) to the \tts{ELF}
+binary format while retaining all of its flexibility.  In a limited way
+it also attempts to decrease number of non-shareable pages created by
+relocations.
+\tts{Prelink} works closely with the dynamic linker in the GNU C library,
+but probably it wouldn't be too hard to port it to some other \tts{ELF}
+using platforms where the dynamic linker can be modified in similar
+ways.
+
+\section{Caching of symbol lookup results}
+
+Program startup can be speeded up by caching of symbol lookup
+results\footnote{Initially, this has been implemented in the \tts{prelink}
+tool and \tts{glibc} dynamic linker, where \tts{prelink} was sorting
+relocation sections of existing executables and shared libraries.
+When this has been implemented in the linker as well and most executables
+and shared libraries are already built with \tts{-z combreloc},
+the code from \tts{prelink} has been removed, as it was no longer
+needed for most objects and just increasing the tool's complexity.}.
+Many shared libraries need more than one lookup of a particular symbol.
+This is especially true for C++ shared libraries, where e.g. the same method
+is present in multiple virtual tables or {\sl RTTI} data structures.
+\nomenclature{RTTI}{C++ runtime type identification}
+Traditionally, each \tts{ELF} section which needs dynamic relocations has an
+associated \tts{.rela*} or \tts{.rel*} section (depending on whether
+the architecture is defined to use \tts{RELA} or \tts{REL} relocations).
+\nomenclature{RELA}{Type of relocation structure which includes offset,
+relocation type, symbol against which the relocation is and an integer
+addend which is added to the symbol.  Memory at offset is not supposed
+to be used by the relocation.  Some architectures got this implemented
+incorrectly and memory at offset is for some relocation types used
+by the relocation, either in addition to addend or addend is not used
+at all.  \tts{RELA} relocations are generally better for \tts{prelink},
+since when \tts{prelink} stores a pre-computed value into the memory location
+at offset, the addend value is not lost}
+\nomenclature{REL}{Type of relocation structure which includes just offset,
+relocation type and symbol.  Addend is taken from memory location at
+offset}
+The relocations in those sections are typically sorted by ascending
+\tts{r\_offset} values.
+Symbol lookups are usually the most expensive operation during program
+startup, so caching the symbol lookups has potential to decrease time
+spent in the dynamic linker.
+One way to decrease the cost of symbol lookups is to create a table with the
+size equal to number of entries
+in dynamic symbol table (\tts{.dynsym}) in the dynamic linker when resolving
+a particular shared library, but that would in some cases need a lot of
+memory and some time spent in initializing the table.  Another option
+would be to use a hash table with chained lists, but that needs both
+extra memory and would also take extra time for computation of the hash value
+and walking up the chains when doing new lookups.
+Fortunately, neither of this is really necessary if we modify the linker
+to sort relocations so that relocations against the same symbol
+are adjacent.  This has been done first in the \tts{Sun} linker and dynamic
+linker, so the GNU linker and dynamic linker use the same \tts{ELF} extensions
+and linker flags.  Particularly, the following new \tts{ELF} dynamic tags have been introduced:
+
+\tts{\#define DT\_RELACOUNT    0x6ffffff9}\\
+\tts{\#define DT\_RELCOUNT     0x6ffffffa}
+
+New options \tts{-z combreloc} and \tts{-z nocombreloc} have been
+added to the linker.  The latter causes the previous linker behavior,
+i.e. each section requiring relocations has a corresponding relocation section,
+which is sorted by ascending \tts{r\_offset}.  \tts{-z combreloc}
+\footnote{\tts{-z combreloc} is the default in GNU linker versions
+2.13 and later.} instructs the linker to create just one relocation
+section for dynamic relocations other than symbol jump table (\tts{PLT})
+relocations.
+\nomenclature{PLT}{Process Linkage Table.  Stubs in \tts{ELF} shared
+libraries and executables which allow lazy relocations of function calls.
+They initially point to code which will do the symbol lookup.  The
+result of this symbol lookup is then stored in the Process Linkage Table
+and control transfered to the address symbol lookup returned.  All
+following calls to the \tts{PLT} slot just branch to the already looked
+up address directly, no further symbol lookup is needed}
+This single relocation section (either \tts{.rela.dyn} or \tts{.rel.dyn})
+is sorted, so that relative relocations come first (sorted by ascending
+\tts{r\_offset}), followed by other relocations, sorted again by ascending
+\tts{r\_offset}.  If more relocations are against the same
+symbol, they immediately follow the first relocation against that symbol
+with lowest \tts{r\_offset}.
+\footnote{In fact the sorting needs to take into account also the type of
+lookup.  Most of the relocations will resolve to a \tts{PLT} slot in the executable
+if there is one for the lookup symbol, because the executable might have a
+pointer against that symbol without any dynamic relocations.  But e.g.
+relocations used for the \tts{PLT} slots must avoid these.}.
+\nomenclature{relative relocation}{Relocation, which doesn't need a symbol
+lookup, just adds a shared library load offset to certain memory location
+(or locations)}
+The number of relative relocations at the beginning of the section
+is stored in the \tts{DT\_RELACOUNT} resp. \tts{DT\_RELCOUNT} dynamic tag.
+
+The dynamic linker can use the new dynamic tag for two purposes.
+If the shared library is successfully mapped at the same address
+as the first \tts{PT\_LOAD} segment's virtual address, the load offset
+is zero and the dynamic linker can avoid all the relative relocations which
+would just add zero to various memory locations.  Normally shared libraries are
+linked with first \tts{PT\_LOAD} segment's virtual address set to zero, so
+the load offset is non-zero.  This can be changed through a linker script or by
+using a special \tts{prelink} option \tts{--reloc-only} to change
+the base address of a shared library.  All prelinked shared libraries
+have non-zero base address as well.  If the load offset is non-zero, the
+dynamic linker can still make use of this dynamic tag, as relative
+relocation handling is typically way simpler than handling other
+relocations (since symbol lookup is not necessary) and thus it can
+handle all relative relocations in a tight loop in one place and
+then handle the remaining relocations with the fully featured
+relocation handling routine.  The second and more important point is
+that if relocations against the same symbol are adjacent, the dynamic
+linker can use a cache with single entry.
+
+The dynamic linker in \tts{glibc}, if it sees \tts{statistics}
+as part of the \tts{LD\_DEBUG} environment variable, displays statistics
+which can show how useful this optimization is.
+Let's look at some big C++ application, e.g. konqueror.
+If not using the cache, the statistics looks like this:
+
+\noindent{\small\begin{verbatim}
+18000:     runtime linker statistics:
+18000:       total startup time in dynamic loader: 270886059 clock cycles
+18000:                 time needed for relocation: 266364927 clock cycles (98.3%)
+18000:                      number of relocations: 79067
+18000:           number of relocations from cache: 0
+18000:             number of relative relocations: 31169
+18000:                time needed to load objects: 4203631 clock cycles (1.5%)
+\end{verbatim}}
+
+This program run is with hot caches, on non-prelinked system, with lazy
+binding.
+\nomenclature{Lazy Binding}{A way to postpone symbol lookups for calls until
+a function is called for the first time in particular shared library.
+This decreases number of symbol lookups done during startup and symbols
+which are never called don't need to be looked up at all.  Calls requiring
+relocations jump into \tts{PLT}, which is initially set up so that a
+function in the dynamic linker is called to do symbol lookup.  The looked
+up address is then stored either into the \tts{PLT} slot directly
+(if \tts{PLT} is writable) or into \tts{GOT} entry corresponding
+to the \tts{PLT slot} and any subsequent calls already go directly to that
+address.  Lazy binding can be turned off by setting \tts{LD\_BIND\_NOW=1}
+in the environment.  Prelinked programs never use lazy binding for the
+executable or any shared libraries not loaded using \tts{dlopen}}
+The numbers show that the dynamic linker spent most of its time
+in relocation handling and especially symbol lookups.  If using symbol
+lookup cache, the numbers look different:
+
+\noindent{\small\begin{verbatim}
+18013:       total startup time in dynamic loader: 132922001 clock cycles
+18013:                 time needed for relocation: 128399659 clock cycles (96.5%)
+18013:                      number of relocations: 25473
+18013:           number of relocations from cache: 53594
+18013:             number of relative relocations: 31169
+18013:                time needed to load objects: 4202394 clock cycles (3.1%)
+\end{verbatim}}
+
+On average, for one real symbol lookup there were two cache hits and total
+time spent in the dynamic linker decreased by 50\%.
+
+\section{Prelink design}
+
+\tts{Prelink} was designed, so that it requires as few \tts{ELF} extensions
+as possible.  It should not be tied to a particular architecture, but
+should work on all \tts{ELF} architectures.  During program startup it
+should avoid all symbol lookups which, as has been shown above, are
+very expensive.  It needs to work in an environment where shared
+libraries and executables are changing from time to time, whether it is
+because of security updates or feature enhancements.  It should avoid big code
+duplication between the dynamic linker and the tool.  And prelinked
+shared libraries need to be usable even in non-prelinked executables,
+or when one of the shared libraries is upgraded and the prelinking of the
+executable has not been updated.
+
+To minimize the number of performed relocations during startup,
+the shared libraries (and executables) need to be relocated
+already as much as possible.  For relative relocations this means the library
+needs to be loaded always at the same base address, for other relocations
+this means all shared libraries with definitions those relocations resolve
+to (often this includes all shared libraries the library or executable depends on)
+must always be loaded at the same addresses.  \tts{ELF} executables
+(with the exception of {\sl Position Independent Executables})
+\nomenclature{Position Independent Executable}{A hybrid between
+classical \tts{ELF} executables and \tts{ELF} shared libraries.
+It has a form of a \tts{ET\_DYN} object like shared libraries and should
+contain position independent code, so that the kernel can load
+the executable starting at random address to make certain security attacks
+harder.  Unlike shared libraries it contains \tts{DT\_DEBUG} dynamic
+tag, must have \tts{PT\_INTERP} segment with dynamic linker's path,
+must have meaningful code at its \tts{e\_entry} and can use symbol
+lookup assumptions normal executables can make, particularly that
+no symbol defined in the executable can be overridden by a shared
+library symbol} have their load address fixed already during linking.
+For shared libraries, \tts{prelink} needs something similar to \tts{a.out}
+registry of virtual address space slots.  Maintaining such registry
+across all installations wouldn't scale well, so \tts{prelink} instead
+assigns these virtual address space slots on the fly after looking at
+all executables it is supposed to speed up and all their dependent shared
+libraries.  The next step is to actually relocate shared libraries
+to the assigned base address.
+
+When this is done, the actual prelinking of shared libraries can be done.
+First, all dependent shared libraries need to be prelinked (\tts{prelink}
+doesn't support circular dependencies between shared libraries, will just
+warn about them instead of prelinking the libraries in the cycle), then for each
+relocation in the shared library \tts{prelink} needs to look up the symbol
+in natural symbol search scope of the shared library (the shared library
+itself first, then breadth first search of all dependent shared libraries) and
+apply the relocation to the symbol's target section.  The symbol lookup code
+in the dynamic linker is quite complex and big, so to avoid duplicating all
+this, \tts{prelink} has chosen to use dynamic linker to do the symbol lookups.
+Dynamic linker is told via a special environment variable it should print
+all performed symbol lookups and their type and \tts{prelink} reads this
+output through a pipe.  As one of the requirements was that
+prelinked shared libraries must be usable even for non-prelinked executables
+(duplicating all shared libraries so that there are pristine and prelinked
+copies would be very unfriendly to RAM usage), \tts{prelink} has to ensure
+that by applying the relocation no information is lost and thus relocation
+processing can be cheaply done at startup time of non-prelinked executables.
+For \tts{RELA} architectures this is easier, because the content
+of the relocation's target memory is not needed when processing the relocation.
+\footnote{Relative relocations on certain \tts{RELA} architectures use
+relocation target's memory, either alone or together with \tts{r\_addend}
+field.}  For \tts{REL} architectures this is not the case.
+\tts{prelink} attempts some tricks described
+later and if they fail, needs to convert the \tts{REL} relocation section
+to \tts{RELA} format where addend is stored in the relocation section
+instead of relocation target's memory.
+
+When all shared libraries an executable (directly or indirectly) depends on
+are prelinked, relocations in the executable are handled similarly to
+relocations in shared libraries.  Unfortunately, not all symbols resolve the
+same when looked up in a shared library's natural symbol search scope
+(i.e. as it is done at the time the shared library is prelinked) and when
+looked up in application's global symbol search scope.  Such symbols are
+herein called {\sl conflicts} and the relocations against those symbols
+{\sl conflicting relocations}.  Conflicts depend on the executable, all its
+shared libraries and their respective order.  They are only computable
+for the shared libraries linked to the executable (libraries mentioned in
+\tts{DT\_NEEDED} dynamic tags and shared libraries they transitively need).
+The set of shared libraries loaded via \tts{dlopen(3)} cannot be predicted
+by \tts{prelink}, neither can the order in which this happened, nor the time
+when they are unloaded.  When the dynamic linker prints symbol lookups
+done in the executable, it also prints conflicts.  \tts{Prelink} then
+takes all relocations against those symbols and builds a special
+\tts{RELA} section with conflict fixups and stores it into the
+prelinked executable.  Also a list of all dependent shared libraries
+in the order they appear in the symbol search scope, together
+with their checksums and times of prelinking is stored in another special
+section.
+
+The dynamic linker first checks if it is itself prelinked.  If yes,
+it can avoid its preliminary relocation processing (this one is done
+with just the dynamic linker itself in the search scope, so that
+all routines in the dynamic linker can be used easily without too many
+limitations).  When it is about to start a program, it first looks
+at the library list section created by \tts{prelink} (if any) and
+checks whether they are present in symbol search scope in the same
+order, none have been modified since prelinking and that there aren't any
+new shared libraries loaded either.  If all these conditions are
+satisfied, prelinking can be used.  In that case the dynamic linker
+processes the fixup section and skips all normal relocation handling.
+If one or more of the conditions are not met, the dynamic linker continues
+with normal relocation processing in the executable and all shared libraries.
+
+\section{Collecting executables and libraries which should be prelinked}
+
+Before the actual work can start the \tts{prelink} tool needs to collect the
+filenames of executables and libraries it is supposed to prelink.
+It doesn't make any sense to prelink a shared library if no executable is
+linked against it because the prelinking information will not be used anyway.
+Furthermore, when \tts{prelink} needs to do a \tts{REL} to \tts{RELA}
+conversion of relocation sections in the shared library (see later)
+or when it needs to convert \tts{SHT\_NOBITS} \tts{PLT} section to
+\tts{SHT\_PROGBITS}, a prelinked shared library might grow in size and so
+prelinking is only desirable if it will speed up startup of some
+program.  The only change which might be useful even for shared libraries
+which are never linked against, only loaded using \tts{dlopen}, is
+relocating to a unique address.  This is useful if there are many relative
+relocations and there are pages in the shared library's writable segment
+which are never written into with the exception of those relative
+relocations.  Such shared libraries are rare, so \tts{prelink} doesn't
+handle these automatically, instead the administrator or developer can
+use \tts{prelink --reloc-only={\sl ADDRESS}} to relocate it manually.
+Prelinking an executable requires all shared libraries it is linked against
+to be prelinked already.
+
+\tts{Prelink} has two main modes in which it collects filenames.
+One is {\sl incremental prelinking}, where \tts{prelink} is invoked without
+the \tts{-a} option.  In this mode, \tts{prelink} queues for prelinking
+all executables and shared libraries given on the command line, all executables
+in directory trees specified on the command line, and all shared libraries
+those executables and shared libraries are linked against.
+For the reasons mentioned earlier a shared library is queued only if a
+program is linked with it or the user tells the tool to do it anyway
+by explicitly mentioning it on the command line.
+The second mode is {\sl full prelinking}, where the \tts{-a} option is
+given on the command line.  This in addition to incremental prelinking
+queues all executables found in directory trees specified in \tts{prelink.conf}
+(which typically includes all or most directories where system executables
+are found).  For each directory subtree in the config file the user
+can specify whether symbolic links to places outside of the tree are to be followed
+or not and whether searching should continue even across filesystem
+boundaries.
+
+There is also an option to blacklist some executables or directory trees
+so that the executables or anything in the directory trees will not
+be prelinked.  This can be specified either on the command line or in
+the config file.
+
+\tts{Prelink} will not attempt to change executables which use a non-standard
+dynamic linker
+\footnote{Standard dynamic linker path is hardcoded in the executable for each
+architecture.  It can be overridden from the command line, but only with
+one dynamic linker name (normally, multiple standard dynamic linkers are
+used when prelinking mixed architecture systems).}
+for security reasons, because it actually needs to execute the dynamic
+linker for symbol lookup and it needs to avoid executing some random
+unknown executable with the permissions with which \tts{prelink} is run
+(typically \tts{root}, with the permissions at least for changing all
+executables and shared libraries in the system).  The administrator should
+ensure that \tts{prelink.conf} doesn't contain world-writable directories
+and such directories are not given to the tool on the command line either,
+but the tool should be distrustful of the objects nevertheless.
+
+Also, \tts{prelink} will not change shared libraries which are not specified
+directly on the command line or located in the directory trees specified on the
+command line or in the config file.  This is so that
+e.g. \tts{prelink} doesn't try to change shared libraries on shared
+networked filesystems, or at least it is possible to configure the tool
+so that it doesn't do it.
+
+For each executable and shared library it collects, \tts{prelink} executes
+the dynamic linker to list all shared libraries it depends on, checks if
+it is already prelinked and whether any of its dependencies changed.
+Objects which are already prelinked and have no dependencies which changed
+don't have to be prelinked again (with the exception when e.g. virtual
+address space layout code finds out it needs to assign new virtual address space slots
+for the shared library or one of its dependencies).  Running the dynamic
+linker to get the symbol lookup information is a quite costly
+operation especially on systems with many executables and shared libraries
+installed, so \tts{prelink} offers a faster \tts{-q} mode.  In all modes,
+\tts{prelink} stores modification and change times of each shared library
+and executable together with all object dependencies and other information
+into \tts{prelink.cache} file.  When prelinking in \tts{-q} mode, it
+just compares modification and change times of the executables and shared
+libraries (and all their dependencies).  Change time is needed because
+\tts{prelink} preserves modification time when prelinking (as well as
+permissions, owner and group).  If the times match, it assumes the
+file has not changed since last prelinking.  Therefore the file can be
+skipped if it is already prelinked and none of the dependencies changed.
+If any time changed or one of the dependencies changed, it invokes the
+dynamic linker the same way as in normal mode to find out real dependencies,
+whether it has been prelinked or not etc.  The collecting phase in normal
+mode can take a few minutes, while in quick mode usually takes just a few
+seconds, as the only operation it does is it calls just lots of \tts{stat}
+system calls.
+
+\section{Assigning virtual address space slots}
+
+\tts{Prelink} has to ensure at least that for all successfully prelinked
+executables all shared libraries they are (transitively) linked against
+have non-overlapping virtual address space slots (furthermore they
+cannot overlap with the virtual address space range used by the executable
+itself, its \tts{brk} area, typical stack location and \tts{ld.so.cache}
+and other files mmaped by the dynamic linker in early stages of dynamic
+linking (before all dependencies are mmaped).  If there were any overlaps,
+the dynamic linker (which mmaps the shared libraries at the desired location
+without \tts{MAP\_FIXED} mmap flag so that it is only soft requirement) would
+not manage to mmap them at the assigned locations and the prelinking
+information would be invalidated (the dynamic linker would have to do all
+normal relocation handling and symbol lookups).  Executables are linked against
+very wide variety of shared library combinations and that has to be taken
+into account.
+
+The simplest approach is to sort shared libraries by descending
+usage count (so that most often used shared libraries like the dynamic
+linker, \tts{libc.so} etc. are close to each other) and assign them
+consecutive slots starting at some architecture specific base address
+(with a page or two in between the shared libraries to allow for a limited
+growth of shared libraries without having to reposition them).
+\tts{Prelink} has to find out which shared libraries will need
+a \tts{REL} to \tts{RELA} conversion of relocation sections
+and for those which will need the conversion count with the increased size
+of the library's loadable segments.  This is \tts{prelink} behavior without
+\tts{-m} and \tts{-R} options.
+
+The architecture specific base address is best located a few megabytes above
+the location where \tts{mmap} with \tts{NULL} first argument and without
+\tts{MAP\_FIXED} starts allocating memory areas (in Linux this is the value
+of \tts{TASK\_UNMAPPED\_BASE} macro).
+\footnote{\tts{TASK\_UNMAPPED\_BASE} has been chosen
+on each platform so that there is enough virtual memory for both the
+\tts{brk} area (between executable's end and this memory address) and \tts{mmap}
+area (between this address and bottom of stack).}  The reason for not
+starting to assign addresses in \tts{prelink} immediately at
+\tts{TASK\_UNMAPPED\_BASE} is that \tts{ld.so.cache} and other mappings by
+the dynamic linker will end up in the same range and could overlap with
+the shared libraries.  Also, if some application uses \tts{dlopen} to load
+a shared library which has been prelinked,
+\footnote{Typically this is because some other executable is linked against that
+shared library directly.}
+those few megabytes above \tts{TASK\_UNMAPPED\_BASE} increase the probability
+that the stack slot will be still unused (it can clash with e.g.
+non-prelinked shared libraries loaded by \tts{dlopen} earlier
+\footnote{If shared libraries have first \tts{PT\_LOAD} segment's virtual
+address zero, the kernel typically picks first empty slot above
+\tts{TASK\_UNMAPPED\_BASE} big enough for the mapping.} or other kinds
+of mmap calls with \tts{NULL} first argument like \tts{malloc} allocating
+big chunks of memory, mmaping of locale database, etc.).
+
+This simplest approach is unfortunately problematic on 32-bit (or 31-bit)
+architectures where the total virtual address space for a process is
+somewhere between 2GB (S/390) and almost 4GB (Linux IA-32 4GB/4GB kernel
+split, AMD64 running 32-bit processes, etc.).  Typical installations these
+days contain thousands of shared libraries and if each of them is given a
+unique address space slot, on average executables will have pretty sparse
+mapping of its shared libraries and there will be less contiguous virtual
+memory for application's own use
+\footnote{Especially databases look these days for every byte of virtual
+address space on 32-bit architectures.}.
+
+\tts{Prelink} has a special mode, turned on with \tts{-m} option, in which
+it computes what shared libraries are ever loaded together in some executable
+(not considering \tts{dlopen}).  If two shared libraries are ever loaded
+together, \tts{prelink} assigns them different virtual address space slots,
+but if they never appear together, it can give them overlapping addresses.
+For example applications using \tts{KDE} toolkit link typically against many
+\tts{KDE} shared libraries, programs written using the \tts{Gtk+} toolkit
+link typically against many \tts{Gtk+} shared libraries, but there are just
+very few programs which link against both \tts{KDE} and \tts{Gtk+} shared
+libraries, and even if they do, they link against very small subset of those
+shared libraries.  So all \tts{KDE} shared libraries not in that subset can
+use overlapping addresses with all \tts{Gtk+} shared libraries but the
+few exceptions.  This leads to considerably smaller virtual address space
+range used by all prelinked shared libraries, but it has its own
+disadvantages too.  It doesn't work too well with incremental prelinking,
+because then not all executables are investigated, just those which are given
+on \tts{prelink}'s command line.  \tts{Prelink} also considers executables
+in \tts{prelink.cache}, but it has no information about executables which have
+not been prelinked yet.  If a new executable, which links against some shared
+libraries which never appeared together before, is prelinked later,
+\tts{prelink} has to assign them new, non-overlapping addresses.
+This means that any executables, which linked against the library
+that has been moved and re-prelinked, need to be prelinked again.
+If this happened during incremental prelinking, \tts{prelink} will
+fix up only the executables given on the command line, leaving other
+executables untouched.  The untouched executables would not be able to
+benefit from prelinking anymore.
+
+Although with the above two layout schemes shared library addresses can
+vary slightly between different hosts running the same distribution
+(depending on the exact set of installed executables and libraries), especially
+the most often used shared libraries will have identical base addresses
+on different computers.  This is often not desirable for security reasons,
+because it makes it slightly easier for various exploits to jump to routines
+they want.  Standard Linux kernels assign always the same addresses to
+shared libraries loaded by the application at each run, so with these
+kernels \tts{prelink} doesn't make things worse.  But there are kernel
+patches, such as Red Hat's \tts{Exec-Shield}, which randomize memory
+mappings on each run.  If shared libraries are prelinked, they cannot
+be assigned different addresses on each run (prelinking information can
+be only used to speed up startup if they are mapped at the base addresses
+which was used during prelinking), which
+means prelinking might not be desirable on some edge servers.
+\tts{Prelink} can assign different addresses on different hosts though,
+which is almost the same as assigning random addresses on each run
+for long running processes such as daemons.  Furthermore, the administrator
+can force full prelinking and assignment of new random addresses every few
+days (if he is also willing to restart the services, so that the old
+shared libraries and executables don't have to be kept in memory).
+
+To assign random addresses \tts{prelink} has the \tts{-R} option.
+This causes a random starting address somewhere in the architecture specific
+range in which shared libraries are assigned, and minor random reshuffling
+in the queue of shared libraries which need address assignment (normally
+it is sorted by descending usage count, with randomization shared libraries
+which are not very far away from each other in the sorted list can be
+swapped).  The \tts{-R} option should work orthogonally to the \tts{-m}
+option.
+
+Some architectures have special further requirements on shared library
+address assignment.  On 32-bit PowerPC, if shared libraries are located
+close to the executable, so that everything fits into 32MB area, \tts{PLT}
+slots resolving to those shared libraries can use the branch relative
+instruction instead of more expensive sequences involving memory load
+and indirect branch.  If shared libraries are located in the
+first 32MB of address space, \tts{PLT} slots resolving to those shared
+libraries can use the branch absolute instruction (but already \tts{PLT}
+slots in those shared libraries resolving to addresses in the executable
+cannot be done cheaply).  This means for optimization \tts{prelink}
+should assign addresses from a 24MB region below the executable first, assuming
+most of the executables are smaller than those remaining 8MB.
+\tts{prelink} assigns these from higher to lower addresses.  When this
+region is full, \tts{prelink} starts from address 0x40000
+\footnote{To leave some pages unmapped to catch \tts{NULL} pointer
+dereferences.} up till the bottom of the first area.  Only when
+all these areas are full, \tts{prelink} starts picking addresses high above
+the executable, so that sufficient space is left in between to leave room
+for \tts{brk}.
+When \tts{-R} option is specified, \tts{prelink} needs to honor it, but
+in a way which doesn't totally kill this optimization.  So it picks up
+a random start base within each of the 3 regions separately, splitting
+them into 6 regions.
+
+Another architecture which needs to be handled specially is IA-32
+when using \tts{Exec-Shield}.  The IA-32 architecture doesn't have an
+bit to disable execution for each page, only for each segment.  All readable
+pages are normally executable.  This means the stack is usually executable,
+as is memory allocated by \tts{malloc}.  This is undesirable for security reasons,
+exploits can then overflow a buffer on the stack to transfer control
+to code it creates on the stack.
+Only very few programs actually need an executable stack.  For example
+programs using GCC trampolines for nested functions need it or when
+an application itself creates executable code on the stack and calls it.
+\tts{Exec-Shield} works around this IA-32 architecture deficiency
+by using a separate code segment, which starts at address 0 and spans
+address space until its limit, highest page which needs to
+be executable.  This is dynamically changed when some page with higher
+address than the limit needs to be executable (either because of \tts{mmap}
+with \tts{PROT\_EXEC} bit set, or \tts{mprotect} with \tts{PROT\_EXEC}
+of an existing mapping).  This kind of protection is of course only
+effective if the limit is as low as possible.  The kernel tries to
+put all new mappings with \tts{PROT\_EXEC} set and \tts{NULL} address low.
+If possible into {\sl ASCII Shield area} (first 16MB of address space)
+\nomenclature{ASCII Shield area}{First 16MB of address space on 32-bit
+architectures.  These addresses have zeros in upper 8 bits,
+which on little endian architectures are stored as last byte of the address
+and on big endian architectures as first byte of the address.
+A zero byte terminates string, so it is hard to control the exact
+arguments of a function if they are placed on the stack above the
+address.  On big endian machines, it is even hard to control the
+low 24 bits of the address}, if not, at least below the executable.
+If \tts{prelink} detects \tts{Exec-Shield}, it tries to do the same as
+kernel when assigning addresses, i.e. prefers to assign addresses in
+{\sl ASCII Shield area} and continues with other addresses below
+the program.  It needs to leave first 1MB plus 4KB of address space
+unallocated though, because that range is often used by programs
+using \tts{vm86} system call.
+
+\section{Relocation of libraries}
+
+When a shared library has a base address assigned, it needs to be relocated
+so that the base address is equal to the first \tts{PT\_LOAD} segment's
+\tts{p\_vaddr}.  The effect of this operation should be bitwise identical
+as if the library were linked with that base address originally.
+That is, the following scripts should produce identical output:
+
+\noindent{{\small\begin{verbatim}
+$ gcc -g -shared -o libfoo.so.1.0.0 -Wl,-h,libfoo.so.1 \
+      input1.o input2.o somelib.a
+$ prelink --reloc-only=0x54321000 libfoo.so.1.0.0
+\end{verbatim}
+\prelinklistingcaption{Script to relocate a shared library after linking using \tts{prelink}}}
+
+and:
+\noindent{\small\begin{verbatim}
+$ gcc -shared -Wl,--verbose 2>&1 > /dev/null \
+  | sed -e '/^======/,/^======/!d' \
+        -e '/^======/d;s/0\( + SIZEOF_HEADERS\)/0x54321000\1/' \
+        > libfoo.so.lds
+$ gcc -Wl,-T,libfoo.so.lds -g -shared -o libfoo.so.1.0.0 \
+      -Wl,-h,libfoo.so.1 input1.o input2.o somelib.a
+\end{verbatim}}
+\prelinklistingcaption{Script to link a shared library at non-standard base}}
+
+The first script creates a normal shared library with the default
+base address 0 and then uses \tts{prelink}'s special mode when it just
+relocates a library to a given address.  The second script first modifies
+a built-in GNU linker script for linking of shared libraries, so that
+the base address is the one given instead of zero and stores it into a
+temporary file.  Then it creates a shared library using that linker script.
+
+The relocation operation involves mostly adding the difference between
+old and new base address to all \tts{ELF} fields which contain values
+representing virtual addresses of the shared library
+(or in the program header table also representing physical addresses).
+File offsets need to be unmodified.  Most places where the adjustments
+need to be done are clear, \tts{prelink} just has to watch \tts{ELF} spec
+to see which fields contain virtual addresses.
+
+One problem is with absolute symbols.  \tts{Prelink} has no way to find
+out if an absolute symbol in a shared library is really meant as
+absolute and thus not changing during relocation, or if it is an address
+of some place in the shared library outside of any section or on their
+edge.  For instance symbols created in the GNU linker's script outside
+of section directives have all \tts{SHN\_ABS} section, yet they can be
+location in the library (e.g. \tts{symbolfoo~=~.}) or they can be absolute
+(e.g. \tts{symbolbar~=~0x12345000}).  This distinction is lost at link
+time.  But the dynamic linker when looking up symbols doesn't make any
+distinction between them, all addresses during dynamic lookup have the
+load offset added to it.  \tts{Prelink} chooses to relocate any absolute
+symbols with value bigger than zero, that way \tts{prelink --reloc-only}
+gets bitwise identical output with linking directly at the different base
+in almost all real-world cases.  Thread Local Storage symbols (those with
+\tts{STT\_TLS} type) are never relocated, as their values are relative
+to start of shared library's thread local area.
+
+When relocating the dynamic section there are no bits which tell if
+a particular dynamic tag uses \tts{d\_un.d\_ptr} (which needs to
+be adjusted) or \tts{d\_un.d\_val} (which needs to be left as is).
+So \tts{prelink} has to hardcode a list of well known architecture
+independent dynamic tags which need adjusting and have a hook for
+architecture specific dynamic tag adjustment.  Sun came up with
+\tts{DT\_ADDRRNGLO} to \tts{DT\_ADDRRNGHI} and \tts{DT\_VALRNGLO}
+to \tts{DT\_VALRNGHI} dynamic tag number ranges, so at least as
+long as these ranges are used for new dynamic tags \tts{prelink}
+can relocate correctly even without listing them all explicitly.
+
+When relocating \tts{.rela.*} or \tts{.rel.*} sections, which is
+done in architecture specific code, relative relocations and on \tts{.got.plt}
+using architectures also \tts{PLT} relocations typically need an
+adjustment.  The adjustment needs to be done in either \tts{r\_addend} field
+of the \tts{ElfNN\_Rela} structure, in the memory pointed by \tts{r\_offset},
+or in both locations.
+On some architectures what needs adjusting is not even the same for all relative relocations.
+Relative relocations against some sections need to have \tts{r\_addend}
+adjusted while others need to have memory adjusted.
+On many architectures, first few words in \tts{GOT} are special and some
+of them need adjustment.
+
+The hardest part of the adjustment is handling the debugging sections.
+These are non-allocated sections which typically have no corresponding
+relocation section associated with them.  \tts{Prelink} has to match the various
+debuggers in what fields it adjusts and what are skipped.
+As of this writing \tts{prelink} should handle
+\href{http://www.eagercon.com/dwarf/dwarf-2.0.0.pdf}%
+{\tts{DWARF 2} [15]} standard as corrected (and extended) by
+\href{http://reality.sgiweb.org/davea/dwarf3-draft8-011125.pdf}%
+{\tts{DWARF 3 draft} [16]},
+\href{http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/gdb/doc/stabs.texinfo?cvsroot=src}%
+{\tts{Stabs} [17]} with GCC extensions and Alpha or MIPS \tts{Mdebug}.
+
+\tts{DWARF 2} debugging information involves many separate sections,
+each of them with a unique format which needs to be relocated differently.
+For relocation of the \tts{.debug\_info} section compilation units \tts{prelink} has to
+parse the corresponding part of the \tts{.debug\_abbrev} section, adjust all
+values of attributes that are using the \tts{DW\_FORM\_addr} form and adjust embedded
+location lists.  \tts{.debug\_ranges} and \tts{.debug\_loc} section
+portions depend on the exact place in \tts{.debug\_info} section from
+which they are referenced, so that \tts{prelink} can keep track of their
+base address.  \tts{DWARF} debugging format is very extendable, so
+\tts{prelink} needs to be very conservative when it sees unknown extensions.
+It needs to fail prelinking instead of silently break debugging information
+if it sees an unknown \tts{.debug\_*} section, unknown attribute form
+or unknown attribute with one of the \tts{DW\_FORM\_block*} forms, as
+they can potentially embed addresses which would need adjustment.
+
+For \tts{stabs} \tts{prelink} tried to match GDB behavior.  For
+\tts{N\_FUN}, it needs to differentiate between function start and
+function address which are both encoded with this type, the rest of types
+either always need relocating or never.  And similarly to \tts{DWARF 2}
+handling, it needs to reject unknown types.
+
+The relocation code in \tts{prelink} is a little bit more generic
+than what is described above, as it is used also by other parts of
+\tts{prelink}, when growing sections in a middle of the shared library
+during \tts{REL} to \tts{RELA} conversion.  All adjustment functions
+get passed both the offset it should add to virtual addresses and
+a start address.  Adjustment is only done if the old virtual address
+was bigger or equal than the start address.
+
+\section{REL to RELA conversion}
+
+On architectures which normally use the \tts{REL} format for relocations instead
+of \tts{RELA} (IA-32, ARM and MIPS), if certain relocation types use the
+memory \tts{r\_offset} points to during relocation, \tts{prelink} has to
+either convert them to a different relocation type which doesn't use
+the memory value, or the whole \tts{.rel.dyn} section needs to be converted
+to \tts{RELA} format.  Let's describe it on an example on IA-32 architecture:
+
+\noindent{{\small\begin{verbatim}
+$ cat > test1.c <<EOF
+extern int i[4];
+int *j = i + 2;
+EOF
+$ cat > test2.c <<EOF
+int i[4];
+EOF
+$ gcc -nostdlib -shared -fpic -s -o test2.so test2.c
+$ gcc -nostdlib -shared -fpic -o test1.so test1.c ./test2.so
+$ readelf -l test1.so | grep LOAD | head -1
+  LOAD           0x000000 0x00000000 0x00000000 0x002b8 0x002b8 R E 0x1000
+$ readelf -l test2.so | grep LOAD | head -1
+  LOAD           0x000000 0x00000000 0x00000000 0x00244 0x00244 R E 0x1000
+$ readelf -r test1.so
+
+Relocation section '.rel.dyn' at offset 0x2b0 contains 1 entries:
+ Offset     Info    Type            Sym.Value  Sym. Name
+000012b8  00000d01 R_386_32          00000000   i
+$ objdump -s -j .data test1.so
+
+test1.so:     file format elf32-i386
+
+Contents of section .data:
+ 12b8 08000000                             ....
+$ readelf -s test2.so | grep i\$
+    11: 000012a8    16 OBJECT  GLOBAL DEFAULT    8 i
+$ prelink -N ./test1.so ./test2.so
+$ readelf -l test1.so | grep LOAD | head -1
+  LOAD           0x000000 0x04dba000 0x04dba000 0x002bc 0x002bc R E 0x1000
+$ readelf -l test2.so | grep LOAD | head -1
+  LOAD           0x000000 0x04db6000 0x04db6000 0x00244 0x00244 R E 0x1000
+$ readelf -r test1.so
+
+Relocation section '.rel.dyn' at offset 0x2b0 contains 1 entries:
+ Offset     Info    Type            Sym.Value  Sym. Name + Addend
+04dbb2bc  00000d01 R_386_32          00000000   i + 8
+$ objdump -s -j .data test1.so
+
+test1.so:     file format elf32-i386
+
+Contents of section .data:
+ 4dbb2bc b072db04                             .r..
+$ readelf -s test2.so | grep i\$
+    11: 04db72a8    16 OBJECT  GLOBAL DEFAULT    8 i
+\end{verbatim}}
+\prelinklistingcaption{\tts{REL} to \tts{RELA} conversion example}}
+
+This relocation is against {\sl i + 8}, where the addend is stored at the memory
+location pointed by \tts{r\_offset}.  \tts{Prelink} assigned base address
+0x4dba000 to \tts{test1.so} and 0x4db6000 to \tts{test2.so}.
+\tts{Prelink} above converted the \tts{REL} section in \tts{test1.so} to
+\tts{RELA}, but let's assume it did not.  All output containing {\sl 2bc}
+above would change to {\sl 2b8} (that changed above only because \tts{.rel.dyn}
+section grew up by 4 bytes during the conversion to \tts{RELA} format),
+the rest would stay unchanged.
+When some program linked against \tts{test1.so} was prelinked,
+the (only) relocation in \tts{test1.so} would not be used and {\sl j} would
+contain the right value, 0x4db72b0 (address of {\sl i + 8}; note that IA-32
+is little endian, so the values in .data section are harder to read
+for a human).  Now, let's assume one of the shared libraries the executable
+is linked against is upgraded.  This means prelink information cannot
+be used, as it is out of date.  Let's assume it was a library other
+than \tts{test2.so}.  Normal relocation processing for \tts{test1.so}
+needs to happen.  Standard \tts{R\_386\_32} calculation is \tts{S~+~A},
+in this case 0x4db72a8 + 0x4db72b0 = 0x9b6e558 and {\sl j} contains wrong
+value.  Either \tts{test2.so} could change and now the {\sl i} variable would
+have different address, or some other shared library linked to the executable
+could overload symbol {\sl i}.  Without additional information the dynamic
+linker cannot find out the addend is 8.
+
+The original value of a symbol could perhaps be stored in some special
+allocated section and the dynamic linker could do some magic to locate it,
+but it would mean standard relocation handling code in the dynamic linker
+cannot be used for relocation processing of prelinked shared libraries
+where prelinking information cannot be used.
+So \tts{prelink} in this case converts the whole \tts{.rel.dyn} section
+into the \tts{RELA} format, the addend is stored in \tts{r\_addend} field
+and when doing relocation processing, it really doesn't matter what
+value is at the memory location pointed by \tts{r\_offset}.
+The disadvantage of this is that the relocation section
+grew by 50\%.  If prelinking information can be used, it shouldn't matter much,
+since the section is never loaded at runtime because it is not accessed.
+If prelinking cannot be used, whether because it is out of date or
+because the shared library has been
+loaded by \tts{dlopen}, it will increase memory footprint, but it is read-only
+memory which is typically not used after startup and can be discarded
+as it is backed out by the file containing the shared library.
+
+At least on IA-32, \tts{REL} to \tts{RELA} conversion is not always
+necessary.  If \tts{R\_386\_32} added is originally 0, \tts{prelink}
+can instead change its type to \tts{R\_386\_GLOB\_DAT}, which is a
+similar dynamic relocation, but calculated as \tts{S} instead of
+\tts{S~+~A}.  There is no similar conversion for \tts{R\_386\_PC32}
+possible though, on the other side this relocation type should never
+appear in position independent shared libraries, only in position
+dependent code.  On ARM, the situation is the same, just using
+different relocation names (\tts{R\_ARM\_32}, \tts{R\_ARM\_GLOB\_DAT}
+and \tts{R\_ARM\_PC24}).
+
+The \tts{.rel.plt} section doesn't have to be converted to \tts{RELA}
+format on either of these architectures, if the conversion is needed,
+all other \tts{.rel.*} allocated sections, which have to be adjacent
+as they are pointed to by \tts{DT\_REL} and \tts{DT\_RELSZ} dynamic tags,
+have to be converted together.  The conversion itself is fairly easy,
+some architecture specific code just has to fetch the original addend
+from memory pointed by the relocation and store it into \tts{r\_addend}
+field (or clear \tts{r\_addend} if the particular relocation type
+never uses the addend).  The main problem is that when the conversion
+happens, the \tts{.rel.dyn} section grows by 50\% and there needs to be
+room for that in the read-only loadable segment of the shared library.
+
+In shared libraries it is always possible to grow the first read-only
+\tts{PT\_LOAD} segment by adding the additional data at the beginning
+of the read-only segment, as the shared library is relocatable.
+\tts{Prelink} can relocate the whole shared library to a higher address
+than it has assigned for it.  The file offsets of all sections
+and the section header table file offset need to be increased,
+but the \tts{ELF} header and program headers need to stay at the beginning
+of the file.  The relocation section can then be moved to the newly created
+space between the end of the program header table and the first section.
+
+Moving the section from the old location to the newly created space
+would leave often very big gap in virtual address space as well as in
+the file at the old location of the relocation section.  Fortunately the
+linker typically puts special \tts{ELF} sections including allocated
+relocation section before the code section and other read-only sections
+under user's control.  These special sections are intended for dynamic
+linking only.  Their addresses are stored just in the \tts{.dynamic} section
+and \tts{prelink} can easily adjust them there.  There is no need for
+a shared library to store address of one of the special sections
+into its code or data sections and existing linkers in fact don't create
+such references.  When growing the relocation section, \tts{prelink}
+checks whether all sections before the relocation section are
+special
+\footnote{As special sections \tts{prelink} considers sections with
+\tts{SHT\_NOTE}, \tts{SHT\_HASH}, \tts{SHT\_DYNSYM}, \tts{SHT\_STRTAB},
+\tts{SHT\_GNU\_verdef}, \tts{SHT\_GNU\_verneed}, \tts{SHT\_GNU\_versym},
+\tts{SHT\_REL} or \tts{SHT\_RELA} type or the \tts{.interp} section.}
+and if they are, just moves them to lower addresses, so that the
+newly created space is right above the relocation section.
+The advantage is that instead of moving all sections by the size of
+the new relocation section they can be adjusted ideally just by the
+difference between old and new relocation section size.
+
+There are two factors which can increase the necessary adjustment of
+all higher sections.  The first is required section alignment of any
+allocated section above the relocation section.  \tts{Prelink} needs
+to find the highest section alignment among those sections and
+increase the adjustment from the difference between old and new
+relocation section up to the next multiple of that alignment.
+
+The second factor is only relevant to shared libraries where linker
+optimized the data segment placement.  Traditionally linker assigned
+the end address of the read-only segment plus the architecture's
+maximum \tts{ELF} page size as the start address of the read-write
+segment.  While this created smallest file sizes of the shared libraries,
+it often wasted one page in the read-write segment because of partial
+pages.  When linker optimizes such that less space is wasted in partial
+pages, the distance between read-only and read-write segments can be
+smaller than architecture specific maximum \tts{ELF} page size.
+\tts{Prelink} has to take this into account, so that when adjusting
+the sections the read-only and read-write segment don't end up on the
+same page.  Unfortunately \tts{prelink} cannot increase or decrease
+the distance between the read-only and read-write segments, since
+it is possible that the shared library has relative addresses of
+any allocated code, data or \tts{.bss} sections
+stored in its sections without any relocations which would allow
+\tts{prelink} to change them.  \tts{Prelink} has to move all sections
+starting with the first allocated \tts{SHT\_PROGBITS} section other
+than \tts{.interp} up to the last allocated \tts{SHT\_PROGBITS} or
+\tts{SHT\_NOBITS} section as a block and thus needs to increase
+the adjustment in steps of the highest section alignment as many times
+times as needed so that the segments end up in different pages.
+Below are 3 examples:
+
+\noindent{{\small\begin{verbatim}
+$ cat > test1.c <<EOF
+int i[2] __attribute__((aligned (32)));
+#define J1(N) int *j##N = &i[1];
+#define J2(N) J1(N##0) J1(N##1) J1(N##2) J1(N##3) J1(N##4)
+#define J3(N) J2(N##0) J2(N##1) J2(N##2) J2(N##3) J2(N##4)
+#define J4(N) J3(N##0) J3(N##1) J3(N##2) J3(N##3) J3(N##4)
+J4(0) J4(1) J3(2) J3(3) J1(4)
+const int l[256] = { [10] = 1 };
+/* Put a zero sized section at the end of read-only segment,
+   so that the end address of the segment is printed.  */
+asm (".section ro_seg_end, \"a\"; .previous");
+EOF
+$ gcc -shared -O2 -nostdlib -fpic -o test1.so test1.c
+$ readelf -S test1.so | grep '^  \['
+  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
+  [ 0]                   NULL            00000000 000000 000000 00      0   0  0
+  [ 1] .hash             HASH            000000b4 0000b4 000930 04   A  2   0  4
+  [ 2] .dynsym           DYNSYM          000009e4 0009e4 001430 10   A  3   d  4
+  [ 3] .dynstr           STRTAB          00001e14 001e14 000735 00   A  0   0  1
+  [ 4] .rel.dyn          REL             0000254c 00254c 000968 08   A  2   0  4
+  [ 5] .text             PROGBITS        00002eb4 002eb4 000000 00  AX  0   0  4
+  [ 6] .rodata           PROGBITS        00002ec0 002ec0 000400 00   A  0   0 32
+  [ 7] ro_seg_end        PROGBITS        000032c0 0032c0 000000 00   A  0   0  1
+  [ 8] .data             PROGBITS        000042c0 0032c0 0004b4 00  WA  0   0  4
+  [ 9] .dynamic          DYNAMIC         00004774 003774 000070 08  WA  3   0  4
+  [10] .got              PROGBITS        000047e4 0037e4 00000c 04  WA  0   0  4
+  [11] .bss              NOBITS          00004800 003800 000008 00  WA  0   0 32
+  [12] .comment          PROGBITS        00000000 003800 000033 00      0   0  1
+  [13] .shstrtab         STRTAB          00000000 003833 000075 00      0   0  1
+  [14] .symtab           SYMTAB          00000000 003b28 001470 10     15  11  4
+  [15] .strtab           STRTAB          00000000 004f98 000742 00      0   0  1
+$ readelf -l test1.so | grep LOAD
+  LOAD           0x000000 0x00000000 0x00000000 0x032c0 0x032c0 R E 0x1000
+  LOAD           0x0032c0 0x000042c0 0x000042c0 0x00530 0x00548 RW  0x1000
+$ prelink -N ./test1.so
+$ readelf -l test1.so | grep LOAD
+  LOAD           0x000000 0x02000000 0x02000000 0x03780 0x03780 R E 0x1000
+  LOAD           0x003780 0x02004780 0x02004780 0x00530 0x00548 RW  0x1000
+$ readelf -S test1.so | grep '^  \['
+  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
+  [ 0]                   NULL            00000000 000000 000000 00      0   0  0
+  [ 1] .hash             HASH            020000b4 0000b4 000930 04   A  2   0  4
+  [ 2] .dynsym           DYNSYM          020009e4 0009e4 001430 10   A  3   d  4
+  [ 3] .dynstr           STRTAB          02001e14 001e14 000735 00   A  0   0  1
+  [ 4] .rel.dyn          RELA            0200254c 00254c 000e1c 0c   A  2   0  4
+  [ 5] .text             PROGBITS        02003374 003374 000000 00  AX  0   0  4
+  [ 6] .rodata           PROGBITS        02003380 003380 000400 00   A  0   0 32
+  [ 7] ro_seg_end        PROGBITS        02003780 003780 000000 00   A  0   0  1
+  [ 8] .data             PROGBITS        02004780 003780 0004b4 00  WA  0   0  4
+  [ 9] .dynamic          DYNAMIC         02004c34 003c34 000070 08  WA  3   0  4
+  [10] .got              PROGBITS        02004ca4 003ca4 00000c 04  WA  0   0  4
+  [11] .bss              NOBITS          02004cc0 003cc0 000008 00  WA  0   0 32
+  [12] .comment          PROGBITS        00000000 003cc0 000033 00      0   0  1
+  [13] .gnu.liblist      GNU_LIBLIST     00000000 003cf3 000000 14     14   0  4
+  [14] .gnu.libstr       STRTAB          00000000 003cf3 000000 00      0   0  1
+  [15] .gnu.prelink_undo PROGBITS        00000000 003cf4 00030c 01      0   0  4
+  [16] .shstrtab         STRTAB          00000000 004003 0000a0 00      0   0  1
+  [17] .symtab           SYMTAB          00000000 0043a0 001470 10     18  11  4
+  [18] .strtab           STRTAB          00000000 005810 000742 00      0   0  1
+\end{verbatim}}
+\prelinklistingcaption{Growing read-only segment with segment distance one page}}
+
+\begin{figure}[!ht]
+\centering
+\includegraphics[width=0.8\textwidth]{dso1}
+\caption{Growing read-only segment with segment distance one page}
+\end{figure}
+
+In this example the read-write segment starts at address \tts{0x42c0}, which
+is one page above the end of read-only segment.  \tts{Prelink} needs to grow
+the read-only \tts{PT\_LOAD} segment by 50\% of \tts{.rel.dyn} size, i.e.
+\tts{0x4b4} bytes.  \tts{Prelink} just needs to round that up for the
+highest alignment (32 bytes required by \tts{.rodata} or \tts{.bss}
+sections) and moves all sections above \tts{.rel.dyn} by \tts{0x4c0} bytes.
+
+\noindent{{\small\begin{verbatim}
+$ cat > test2.c <<EOF
+int i[2] __attribute__((aligned (32)));
+#define J1(N) int *j##N = &i[1];
+#define J2(N) J1(N##0) J1(N##1) J1(N##2) J1(N##3) J1(N##4)
+#define J3(N) J2(N##0) J2(N##1) J2(N##2) J2(N##3) J2(N##4)
+#define J4(N) J3(N##0) J3(N##1) J3(N##2) J3(N##3) J3(N##4)
+J4(0) J4(1) J3(2) J3(3) J1(4)
+const int l[256] = { [10] = 1 };
+int k[670];
+asm (".section ro_seg_end, \"a\"; .previous");
+EOF
+$ gcc -shared -O2 -nostdlib -fpic -o test2.so test2.c
+$ readelf -S test2.so | grep '^  \['
+  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
+  [ 0]                   NULL            00000000 000000 000000 00      0   0  0
+  [ 1] .hash             HASH            000000b4 0000b4 000934 04   A  2   0  4
+  [ 2] .dynsym           DYNSYM          000009e8 0009e8 001440 10   A  3   d  4
+  [ 3] .dynstr           STRTAB          00001e28 001e28 000737 00   A  0   0  1
+  [ 4] .rel.dyn          REL             00002560 002560 000968 08   A  2   0  4
+  [ 5] .text             PROGBITS        00002ec8 002ec8 000000 00  AX  0   0  4
+  [ 6] .rodata           PROGBITS        00002ee0 002ee0 000400 00   A  0   0 32
+  [ 7] ro_seg_end        PROGBITS        000032e0 0032e0 000000 00   A  0   0  1
+  [ 8] .data             PROGBITS        00004000 004000 0004b4 00  WA  0   0  4
+  [ 9] .dynamic          DYNAMIC         000044b4 0044b4 000070 08  WA  3   0  4
+  [10] .got              PROGBITS        00004524 004524 00000c 04  WA  0   0  4
+  [11] .bss              NOBITS          00004540 004540 000a88 00  WA  0   0 32
+  [12] .comment          PROGBITS        00000000 004540 000033 00      0   0  1
+  [13] .shstrtab         STRTAB          00000000 004573 000075 00      0   0  1
+  [14] .symtab           SYMTAB          00000000 004868 001480 10     15  11  4
+  [15] .strtab           STRTAB          00000000 005ce8 000744 00      0   0  1
+$ readelf -l test2.so | grep LOAD
+  LOAD           0x000000 0x00000000 0x00000000 0x032e0 0x032e0 R E 0x1000
+  LOAD           0x004000 0x00004000 0x00004000 0x00530 0x00fc8 RW  0x1000
+$ prelink -N ./test2.so
+$ readelf -l test2.so | grep LOAD
+  LOAD           0x000000 0x02000000 0x02000000 0x037a0 0x037a0 R E 0x1000
+  LOAD           0x0044c0 0x020044c0 0x020044c0 0x00530 0x00fc8 RW  0x1000
+$ readelf -S test2.so | grep '^  \['
+  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
+  [ 0]                   NULL            00000000 000000 000000 00      0   0  0
+  [ 1] .hash             HASH            020000b4 0000b4 000934 04   A  2   0  4
+  [ 2] .dynsym           DYNSYM          020009e8 0009e8 001440 10   A  3   d  4
+  [ 3] .dynstr           STRTAB          02001e28 001e28 000737 00   A  0   0  1
+  [ 4] .rel.dyn          RELA            02002560 002560 000e1c 0c   A  2   0  4
+  [ 5] .text             PROGBITS        02003388 003388 000000 00  AX  0   0  4
+  [ 6] .rodata           PROGBITS        020033a0 0033a0 000400 00   A  0   0 32
+  [ 7] ro_seg_end        PROGBITS        020037a0 0037a0 000000 00   A  0   0  1
+  [ 8] .data             PROGBITS        020044c0 0044c0 0004b4 00  WA  0   0  4
+  [ 9] .dynamic          DYNAMIC         02004974 004974 000070 08  WA  3   0  4
+  [10] .got              PROGBITS        020049e4 0049e4 00000c 04  WA  0   0  4
+  [11] .bss              NOBITS          02004a00 004a00 000a88 00  WA  0   0 32
+  [12] .comment          PROGBITS        00000000 004a00 000033 00      0   0  1
+  [13] .gnu.liblist      GNU_LIBLIST     00000000 004a33 000000 14     14   0  4
+  [14] .gnu.libstr       STRTAB          00000000 004a33 000000 00      0   0  1
+  [15] .gnu.prelink_undo PROGBITS        00000000 004a34 00030c 01      0   0  4
+  [16] .shstrtab         STRTAB          00000000 004d43 0000a0 00      0   0  1
+  [17] .symtab           SYMTAB          00000000 0050e0 001480 10     18  11  4
+  [18] .strtab           STRTAB          00000000 006560 000744 00      0   0  1
+\end{verbatim}}
+\prelinklistingcaption{Growing read-only segment not requiring additional padding}}
+
+\begin{figure}[!ht]
+\centering
+\includegraphics[width=0.8\textwidth]{dso2}
+\caption{Growing read-only segment not requiring additional padding}
+\end{figure}
+
+In the second example \tts{prelink} can grow by just \tts{0x4c0} bytes as
+well, eventhough the distance between read-write and read-only segment
+is just \tts{0xd20} bytes.  With this distance, hypothetical adjustment
+by any size less than \tts{0xd21} bytes (modulo 4096) would need just
+rounding up to the next multiple of 32 bytes, while adjustments
+from \tts{0xd21} up to \tts{0xfe0} would require adjustments in
+multiples of 4096 bytes.
+
+\noindent{{\small\begin{verbatim}
+$ cat > test3.c <<EOF
+int i[2] __attribute__((aligned (32)));
+#define J1(N) int *j##N = &i[1];
+#define J2(N) J1(N##0) J1(N##1) J1(N##2) J1(N##3) J1(N##4)
+#define J3(N) J2(N##0) J2(N##1) J2(N##2) J2(N##3) J2(N##4)
+#define J4(N) J3(N##0) J3(N##1) J3(N##2) J3(N##3) J3(N##4)
+J4(0) J4(1) J3(2) J3(3) J1(4)
+int k[670];
+asm (".section ro_seg_end, \"a\"; .previous");
+EOF
+$ gcc -shared -O2 -nostdlib -fpic -o test3.so test3.c
+$ readelf -S test3.so | grep '^  \['
+  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
+  [ 0]                   NULL            00000000 000000 000000 00      0   0  0
+  [ 1] .hash             HASH            000000b4 0000b4 00092c 04   A  2   0  4
+  [ 2] .dynsym           DYNSYM          000009e0 0009e0 001420 10   A  3   c  4
+  [ 3] .dynstr           STRTAB          00001e00 001e00 000735 00   A  0   0  1
+  [ 4] .rel.dyn          REL             00002538 002538 000968 08   A  2   0  4
+  [ 5] .text             PROGBITS        00002ea0 002ea0 000000 00  AX  0   0  4
+  [ 6] ro_seg_end        PROGBITS        00002ea0 002ea0 000000 00   A  0   0  1
+  [ 7] .data             PROGBITS        00003000 003000 0004b4 00  WA  0   0  4
+  [ 8] .dynamic          DYNAMIC         000034b4 0034b4 000070 08  WA  3   0  4
+  [ 9] .got              PROGBITS        00003524 003524 00000c 04  WA  0   0  4
+  [10] .bss              NOBITS          00003540 003540 000a88 00  WA  0   0 32
+  [11] .comment          PROGBITS        00000000 003540 000033 00      0   0  1
+  [12] .shstrtab         STRTAB          00000000 003573 00006d 00      0   0  1
+  [13] .symtab           SYMTAB          00000000 003838 001460 10     14  10  4
+  [14] .strtab           STRTAB          00000000 004c98 000742 00      0   0  1
+$ readelf -l test3.so | grep LOAD
+  LOAD           0x000000 0x00000000 0x00000000 0x02ea0 0x02ea0 R E 0x1000
+  LOAD           0x003000 0x00003000 0x00003000 0x00530 0x00fc8 RW  0x1000
+$ prelink -N ./test3.so
+$ readelf -l test3.so | grep LOAD
+  LOAD           0x000000 0x02000000 0x02000000 0x03ea0 0x03ea0 R E 0x1000
+  LOAD           0x004000 0x02004000 0x02004000 0x00530 0x00fc8 RW  0x1000
+$ readelf -S test3.so | grep '^  \['
+  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
+  [ 0]                   NULL            00000000 000000 000000 00      0   0  0
+  [ 1] .hash             HASH            020000b4 0000b4 00092c 04   A  2   0  4
+  [ 2] .dynsym           DYNSYM          020009e0 0009e0 001420 10   A  3   c  4
+  [ 3] .dynstr           STRTAB          02001e00 001e00 000735 00   A  0   0  1
+  [ 4] .rel.dyn          RELA            02002538 002538 000e1c 0c   A  2   0  4
+  [ 5] .text             PROGBITS        02003ea0 003ea0 000000 00  AX  0   0  4
+  [ 6] ro_seg_end        PROGBITS        02003ea0 003ea0 000000 00   A  0   0  1
+  [ 7] .data             PROGBITS        02004000 004000 0004b4 00  WA  0   0  4
+  [ 8] .dynamic          DYNAMIC         020044b4 0044b4 000070 08  WA  3   0  4
+  [ 9] .got              PROGBITS        02004524 004524 00000c 04  WA  0   0  4
+  [10] .bss              NOBITS          02004540 004540 000a88 00  WA  0   0 32
+  [11] .comment          PROGBITS        00000000 004540 000033 00      0   0  1
+  [12] .gnu.liblist      GNU_LIBLIST     00000000 004573 000000 14     13   0  4
+  [13] .gnu.libstr       STRTAB          00000000 004573 000000 00      0   0  1
+  [14] .gnu.prelink_undo PROGBITS        00000000 004574 0002e4 01      0   0  4
+  [15] .shstrtab         STRTAB          00000000 00485b 000098 00      0   0  1
+  [16] .symtab           SYMTAB          00000000 004bc8 001460 10     17  10  4
+  [17] .strtab           STRTAB          00000000 006028 000742 00      0   0  1
+\end{verbatim}}
+\prelinklistingcaption{Growing read-only segment if page padding needed}}
+
+\begin{figure}[!ht]
+\centering
+\includegraphics[width=0.8\textwidth]{dso3}
+\caption{Growing read-only segment if page padding needed}
+\end{figure}
+
+In the last example the distance between \tts{PT\_LOAD} segments is very
+small, just \tts{0x160} bytes and the adjustment had to be done by 4096
+bytes.
+
+% Fortunately, shared libraries are position independent, so all absolute
+% values in them are either stored in well known \tts{ELF} structures,
+% or have corresponding dynamic relocations.  The only problem might be
+% with relative relocations, which are resolved at link time.
+% The start of read-only \tts{PT\_LOAD} segment of shared libraries is
+% typically used by special sections used by the dynamic linker
+% (\tts{.hash}, \tts{.dynsym}, \tts{.dynstr}, \tts{.gnu.version*},
+% \tts{.rel*}, \tts{.note*}).  It makes no sense for a shared library to
+% have relocations against these sections or some addresses inside of them,
+% furthermore it is impossible to do it without specially crafted
+% linker script.  So \tts{prelink} makes the assumption that it can grow
+% freely the shared library after \tts{.rel.dyn} section, as long
+% as only sections mentioned above come before \tts{.rel.dyn} (it actually
+% checks section types, not names).  \tts{Prelink} certainly can grow the shared library
+% size in multiplies of \tts{ELF} architecture specific maximum page size,
+% but usually it can do better.  Particularly, \tts{prelink} can grow by the 50\% size
+% of \tts{.rel.dyn} section rounded up to the largest section alignment
+% in all sections following it, but it has to make sure that two
+% different \tts{PT\_LOAD} segments (typically the read-only and read-write)
+% will not share the same page, otherwise it needs to grow it more in
+% multiplies of the maximum section alignment until they are on different
+% pages.  Growing is done by using the shared library relocation code with
+% start address set to end of \tts{.rel.dyn} section.  \tts{.rel.plt}
+% section is then moved right to the end of \tts{.rel.dyn} section,
+% \tts{.dynamic} section needs updating all addresses, type of
+% relocation section, segment table needs to be adjusted accordingly
+% and file offsets in section header table as well.
+
+\section{Conflicts}
+
+As said earlier, if symbol lookup of some symbol in particular shared
+library results in different values when that shared library's natural
+search scope is used and when using search scope of the application the
+DSO is used in, this is considered a {\sl conflict}.
+Here is an example of a conflict on IA-32:
+
+\noindent{{\small\begin{verbatim}
+$ cat > test1.c <<EOF
+int i;
+int *j = &i;
+int *foo (void) { return &i; }
+EOF
+$ cat > test2.c <<EOF
+int i;
+int *k = &i;
+int *bar (void) { return &i; }
+EOF
+$ cat > test.c <<EOF
+#include <stdio.h>
+extern int i, *j, *k, *foo (void), bar (void);
+int main (void)
+{
+#ifdef PRINT_I
+  printf ("%p\n", &i);
+#endif
+  printf ("%p %p %p %p\n", j, k, foo (), bar ());
+}
+EOF
+$ gcc -nostdlib -shared -fpic -s -o test1.so test1.c
+$ gcc -nostdlib -shared -fpic -o test2.so test2.c ./test1.so
+$ gcc -o test test.c ./test2.so ./test1.so
+$ ./test
+0x16137c 0x16137c 0x16137c 0x16137c
+$ readelf -r ./test1.so
+
+Relocation section '.rel.dyn' at offset 0x2bc contains 2 entries:
+ Offset     Info    Type            Sym.Value  Sym. Name
+000012e4  00000d01 R_386_32          00001368   i
+00001364  00000d06 R_386_GLOB_DAT    00001368   i
+$ prelink -N ./test ./test1.so ./test2.so
+$ LD_WARN= LD_TRACE_PRELINKING=1 LD_BIND_NOW=1 /lib/ld-linux.so.2 ./test1.so
+        ./test1.so => ./test1.so (0x04db6000, 0x00000000)
+$ LD_WARN= LD_TRACE_PRELINKING=1 LD_BIND_NOW=1 /lib/ld-linux.so.2 ./test2.so
+        ./test2.so => ./test2.so (0x04dba000, 0x00000000)
+        ./test1.so => ./test1.so (0x04db6000, 0x00000000)
+$ LD_WARN= LD_TRACE_PRELINKING=1 LD_BIND_NOW=1 /lib/ld-linux.so.2 ./test \
+  | sed 's/^[[:space:]]*/  /'
+  ./test => ./test (0x08048000, 0x00000000)
+  ./test2.so => ./test2.so (0x04dba000, 0x00000000)
+  ./test1.so => ./test1.so (0x04db6000, 0x00000000)
+  libc.so.6 => /lib/tls/libc.so.6 (0x00b22000, 0x00000000) TLS(0x1, 0x00000028)
+  /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x00b0a000, 0x00000000)
+$ readelf -S ./test1.so | grep '\.data\|\.got'
+  [ 6] .data             PROGBITS        04db72e4 0002e4 000004 00  WA  0   0  4
+  [ 8] .got              PROGBITS        04db7358 000358 000010 04  WA  0   0  4
+$ readelf -r ./test1.so
+
+Relocation section '.rel.dyn' at offset 0x2bc contains 2 entries:
+ Offset     Info    Type            Sym.Value  Sym. Name
+04db72e4  00000d06 R_386_GLOB_DAT    04db7368   i
+04db7364  00000d06 R_386_GLOB_DAT    04db7368   i
+$ objdump -s -j .got -j .data test1.so
+
+test1.so:     file format elf32-i386
+
+Contents of section .data:
+ 4db72e4 6873db04                             hs..
+Contents of section .got:
+ 4db7358 e8120000 00000000 00000000 6873db04  ............hs..
+$ readelf -r ./test | sed '/\.gnu\.conflict/,$!d'
+Relocation section '.gnu.conflict' at offset 0x7ac contains 18 entries:
+ Offset     Info    Type            Sym.Value  Sym. Name + Addend
+04db72e4  00000001 R_386_32                                     04dbb37c
+04db7364  00000001 R_386_32                                     04dbb37c
+00c56874  00000001 R_386_32                                     fffffff0
+00c56878  00000001 R_386_32                                     00000001
+00c568bc  00000001 R_386_32                                     fffffff4
+00c56900  00000001 R_386_32                                     ffffffec
+00c56948  00000001 R_386_32                                     ffffffdc
+00c5695c  00000001 R_386_32                                     ffffffe0
+00c56980  00000001 R_386_32                                     fffffff8
+00c56988  00000001 R_386_32                                     ffffffe4
+00c569a4  00000001 R_386_32                                     ffffffd8
+00c569c4  00000001 R_386_32                                     ffffffe8
+00c569d8  00000001 R_386_32                                     080485b8
+00b1f510  00000007 R_386_JUMP_SLOT                              00b91460
+00b1f514  00000007 R_386_JUMP_SLOT                              00b91080
+00b1f518  00000007 R_386_JUMP_SLOT                              00b91750
+00b1f51c  00000007 R_386_JUMP_SLOT                              00b912c0
+00b1f520  00000007 R_386_JUMP_SLOT                              00b91200
+$ ./test
+0x4dbb37c 0x4dbb37c 0x4dbb37c 0x4dbb37c
+\end{verbatim}}
+\prelinklistingcaption{Conflict example}}
+
+In the example, among some conflicts caused by the dynamic linker and the C library,
+\footnote{Particularly in the example, the 5 \tts{R\_386\_JUMP\_SLOT} fixups
+are \tts{PLT} slots in the dynamic linker for memory allocator functions
+resolving to C library functions instead of dynamic linker's own trivial
+implementation.  First 10 \tts{R\_386\_32} fixups at offsets 0xc56874
+to 0xc569c4 are Thread Local Storage fixups in the C library and
+the fixup at 0xc569d8 is for {\sl \_IO\_stdin\_used} weak undefined symbol
+in the C library, resolving to a symbol with the same name in the executable.}
+there is a conflict for the symbol {\sl i} in \tts{test1.so} shared library.
+\tts{test1.so} has just itself in its natural symbol lookup scope (as proved
+by
+
+\tts{LD\_WARN= LD\_TRACE\_PRELINKING=1 LD\_BIND\_NOW=1 /lib/ld-linux.so.2 ./test1.so}
+
+command output), so when looking up symbol {\sl i} in this
+scope the definition in \tts{test1.so} is chosen.  \tts{test1.so} has two
+relocations against the symbol {\sl i}, one \tts{R\_386\_32} against \tts{.data}
+section and one \tts{R\_386\_GLOB\_DAT} against \tts{.got} section.  When
+prelinking \tts{test1.so} library, the dynamic linker stores the address of
+{\sl i} (0x4db7368) into both locations (at offsets 0x4db72e4 and 0x4db7364).
+The global symbol search scope in \tts{test} executable contains the executable
+itself, \tts{test2.so} and \tts{test1.so} libraries, \tts{libc.so.6} and
+the dynamic linker in the listed order.
+When doing symbol lookup for symbol {\sl i}
+in \tts{test1.so} when doing relocation processing of the whole executable,
+address of {\sl i} in \tts{test2.so} is returned as that symbol comes earlier
+in the global search scope.  So, when none of the libraries nor the executable
+is prelinked, the program prints 4 identical addresses.  If prelink didn't
+create conflict fixups for the two relocations against the symbol {\sl i}
+in \tts{test1.so}, prelinked executable (which bypasses normal relocation
+processing on startup) would print instead of the desired
+
+\tts{0x4dbb37c 0x4dbb37c 0x4dbb37c 0x4dbb37c}
+
+different addresses,
+
+\tts{0x4db7368 0x4dbb37c 0x4db7368 0x4dbb37c}
+
+That is a functionality change that \tts{prelink} cannot be permitted to
+make, so instead it fixes up the two locations by storing the desired
+value in there.  In this case \tts{prelink} really cannot avoid that
+- \tts{test1.so} shared library could be also used without \tts{test2.so}
+in some other executable's symbol search scope.
+Or there could be some executable linked with:
+
+\noindent{{\small\begin{verbatim}
+$ gcc -o test2 test.c ./test1.so ./test2.so
+\end{verbatim}}
+\prelinklistingcaption{Conflict example with swapped order of libraries}}
+
+where {\sl i} lookup in \tts{test1.so} and \tts{test2.so} is supposed
+to resolve to {\sl i} in \tts{test1.so}.
+
+Now consider what happens if the executable is linked with \tts{-DPRINT\_I}:
+
+\noindent{{\small\begin{verbatim}
+$ gcc -DPRINT_I -o test3 test.c ./test2.so ./test1.so
+$ ./test3
+0x804972c
+0x804972c 0x804972c 0x804972c 0x804972c
+$ prelink -N ./test3 ./test1.so ./test2.so
+$ readelf -S ./test2.so | grep '\.data\|\.got'
+  [ 6] .data             PROGBITS        04dbb2f0 0002f0 000004 00  WA  0   0  4
+  [ 8] .got              PROGBITS        04dbb36c 00036c 000010 04  WA  0   0  4
+$ readelf -r ./test2.so
+
+Relocation section '.rel.dyn' at offset 0x2c8 contains 2 entries:
+ Offset     Info    Type            Sym.Value  Sym. Name
+04dbb2f0  00000d06 R_386_GLOB_DAT    04dbb37c   i
+04dbb378  00000d06 R_386_GLOB_DAT    04dbb37c   i
+$ objdump -s -j .got -j .data test2.so
+
+test2.so:     file format elf32-i386
+
+Contents of section .data:
+ 4dbb2f0 7cb3db04                             |...            
+Contents of section .got:
+ 4dbb36c f4120000 00000000 00000000 7cb3db04  ............|...
+$ readelf -r ./test3
+
+Relocation section '.rel.dyn' at offset 0x370 contains 4 entries:
+ Offset     Info    Type            Sym.Value  Sym. Name
+08049720  00000e06 R_386_GLOB_DAT    00000000   __gmon_start__
+08049724  00000105 R_386_COPY        08049724   j
+08049728  00000305 R_386_COPY        08049728   k
+0804972c  00000405 R_386_COPY        0804972c   i
+
+Relocation section '.rel.plt' at offset 0x390 contains 4 entries:
+ Offset     Info    Type            Sym.Value  Sym. Name
+08049710  00000607 R_386_JUMP_SLOT   080483d8   __libc_start_main
+08049714  00000707 R_386_JUMP_SLOT   080483e8   printf
+08049718  00000807 R_386_JUMP_SLOT   080483f8   foo
+0804971c  00000c07 R_386_JUMP_SLOT   08048408   bar
+
+Relocation section '.gnu.conflict' at offset 0x7f0 contains 20 entries:
+ Offset     Info    Type            Sym.Value  Sym. Name + Addend
+04dbb2f0  00000001 R_386_32                                     0804972c
+04dbb378  00000001 R_386_32                                     0804972c
+04db72e4  00000001 R_386_32                                     0804972c
+04db7364  00000001 R_386_32                                     0804972c
+00c56874  00000001 R_386_32                                     fffffff0
+00c56878  00000001 R_386_32                                     00000001
+00c568bc  00000001 R_386_32                                     fffffff4
+00c56900  00000001 R_386_32                                     ffffffec
+00c56948  00000001 R_386_32                                     ffffffdc
+00c5695c  00000001 R_386_32                                     ffffffe0
+00c56980  00000001 R_386_32                                     fffffff8
+00c56988  00000001 R_386_32                                     ffffffe4
+00c569a4  00000001 R_386_32                                     ffffffd8
+00c569c4  00000001 R_386_32                                     ffffffe8
+00c569d8  00000001 R_386_32                                     080485f0
+00b1f510  00000007 R_386_JUMP_SLOT                              00b91460
+00b1f514  00000007 R_386_JUMP_SLOT                              00b91080
+00b1f518  00000007 R_386_JUMP_SLOT                              00b91750
+00b1f51c  00000007 R_386_JUMP_SLOT                              00b912c0
+00b1f520  00000007 R_386_JUMP_SLOT                              00b91200
+$ ./test3
+0x804972c
+0x804972c 0x804972c 0x804972c 0x804972c
+\end{verbatim}}
+\prelinklistingcaption{Conflict example with COPY relocation for conflicting symbol}}
+
+Because the executable is not compiled as position independent code and
+\tts{main} function takes address of {\sl i} variable, the object
+file for \tts{test3.c} contains a \tts{R\_386\_32} relocation against
+{\sl i}.  The linker cannot make dynamic relocations against read-only
+segment in the executable, so the address of {\sl i} must be constant.
+This is accomplished by creating a new object {\sl i} in the executable's
+\tts{.dynbss} section and creating a dynamic \tts{R\_386\_COPY} relocation
+for it.  The relocation ensures that during startup the content of
+{\sl i} object earliest in the search scope without the executable
+is copied to this {\sl i} object in executable.  Now, unlike \tts{test}
+executable, in \tts{test3} executable {\sl i} lookups in both \tts{test1.so}
+and \tts{test2.so} libraries result in address of {\sl i} in the executable
+(instead of \tts{test2.so}).  This means that two conflict fixups
+are needed again for \tts{test1.so} (but storing 0x804972c instead of
+0x4dbb37c) and two new fixups are needed for \tts{test2.so}.
+
+If the executable is compiled as position independent code,
+
+\noindent{{\small\begin{verbatim}
+$ gcc -fpic -DPRINT_I -o test4 test.c ./test2.so ./test1.so
+$ ./test4
+0x4dbb37c
+0x4dbb37c 0x4dbb37c 0x4dbb37c 0x4dbb37c
+\end{verbatim}}
+\prelinklistingcaption{Conflict example with position independent code in the executable}}
+
+the address of {\sl i} is stored in executable's \tts{.got} section,
+which is writable and thus can have dynamic relocation against it.
+So the linker creates a \tts{R\_386\_GLOB\_DAT} relocation against
+the \tts{.got} section, the symbol {\sl i} is undefined in the executable
+and no copy relocations are needed.  In this case, only \tts{test1.so}
+will need 2 fixups, \tts{test2.so} will not need any.
+
+There are various reasons for conflicts:
+\begin{itemize}
+\item Improperly linked shared libraries.  If a shared library always needs
+symbols from some particular shared library, it should be linked against
+that library, usually by adding \tts{-lLIBNAME} to \tts{gcc -shared} command
+line used during linking of the shared library.  This both reduces conflict
+fixups in \tts{prelink} and makes the library easier to load using
+\tts{dlopen}, because applications don't have to remember that they have
+to load some other library first.  The best place to record the dependency
+is in the shared library itself.  Another reason is if the needed library
+uses symbol versioning for its symbols.  Not linking against that library
+can result in malfunctioning shared library.  \tts{Prelink} issues a warning for
+such libraries - \tts{Warning: {\sl library} has undefined non-weak symbols}.
+When linking a shared library, the \tts{-Wl,-z,defs} option can be used to
+ensure there are no such undefined non-weak symbols.  There are exceptions,
+when undefined non-weak symbols in shared libraries are desirable.
+One exception is when there are multiple shared libraries providing the
+same functionality, and a shared library doesn't care which one is used.
+An example can be e.g. \tts{libreadline.so.4}, which needs some terminal
+handling functions, which are provided be either \tts{libtermcap.so.2},
+or \tts{libncurses.so.5}.  Another exception is with plugins or other
+shared libraries which expect some symbols to be resolved to symbols
+defined in the executable.
+\item A library overriding functionality of some other library.  One example
+is e.g. C library and POSIX thread library.  Older versions of the GNU C library
+did not provide cancelable entry points required by the standard.  This is
+not needed for non-threaded applications.  So only the \tts{libpthread.so.0} shared
+library which provides POSIX threading support then overrode the
+cancellation entry points required by the standard by wrapper functions
+which provided the required functionality.  Although most recent versions
+of the GNU C library handle cancellation even in entry points in \tts{libc.so.6}
+(this was needed for cases when \tts{libc.so.6} comes earlier before
+\tts{libpthread.so.0} in symbol search scope and used to be worked around
+by non-standard handling of weak symbols in the dynamic linker), because
+of symbol versioning the symbols had to stay in \tts{libpthread.so.0}
+as well as in \tts{libc.so.6}.  This means every program using POSIX
+threads on Linux will have a couple of conflict fixups because of this.
+\item Programs which need copy relocations.  Although \tts{prelink} will
+resolve the copy relocations at prelinking time, if any shared library
+has relocations against the symbol which needed copy relocation, all such
+relocations will need conflict fixups.  Generally, it is better to not
+export variables from shared libraries in their APIs, instead provide
+accessor functions.
+\item Function pointer equality requirement for functions called from
+executables.  When address of some global function is taken, at least
+C and C++ require that this pointer is the same in the whole program.
+Executables typically contain position dependent code, so when code in the
+executable takes address of some function not defined in the executable itself,
+that address must be link time constant.  Linker accomplishes this by
+creating a \tts{PLT} slot for the function unless there was one already
+and resolving to the address of \tts{PLT} slot.  The symbol for the function
+is created with \tts{st\_value} equal to address of the \tts{PLT} slot,
+but \tts{st\_shndx} set to \tts{SHN\_UNDEF}.  Such symbols are treated
+specially by the dynamic linker, in that \tts{PLT} relocations
+resolve to first symbol in the global search scope after the executable,
+while symbol lookups for all other relocation types return the
+address of the symbol in the executable.  Unfortunately, GNU linker doesn't
+differentiate between taking address of a function in an executable (especially
+one for which no dynamic relocation is possible in case it is in read-only
+segment) and just calling the function, but never taking its address.
+If it cleared the \tts{st\_value} field of the \tts{SHN\_UNDEF} function symbols
+in case nothing in the executable takes the function's address, several \tts{prelink}
+conflict could disappear (\tts{SHN\_UNDEF} symbols with \tts{st\_value} set
+to 0 are treated always as real undefined symbols by the dynamic linker).
+\item \tts{COMDAT} code and data in C++.  C++ language has several places where
+it may need to emit some code or data without a clear unique
+compilation unit owning it.  Examples include taking address of an
+\tts{inline} function, local static variable in \tts{inline} functions,
+virtual tables for some classes (this depends on \tts{\#pragma interface}
+or \tts{\#pragma implementation} presence, presence of non-inline
+non-pure-virtual member function in the class, etc.), {\sl RTTI} info for them.
+Compilers and linkers handle these using various \tts{COMDAT} schemes,
+e.g. GNU linker's \tts{.gnu.linkonce*} special sections or using
+\tts{SHT\_GROUP}.  Unfortunately, all these duplicate merging schemes
+work only during linking of shared libraries or executables, no duplicate
+removal is done across shared libraries.  Shared libraries typically
+have relocations against their \tts{COMDAT} code or data objects (otherwise
+they wouldn't be at least in most cases emitted at all), so if there are
+\tts{COMDAT} duplicates across shared libraries or the executable, they
+lead to conflict fixups.  The linker theoretically could try to
+merge \tts{COMDAT} duplicates across shared libraries if specifically
+requested by the user (if a \tts{COMDAT} symbol is already present in
+one of the dependent shared libraries and is \tts{STB\_WEAK}, the linker
+could skip it).  Unfortunately, this only works as long as the user has
+full control over the dependent shared libraries, because the \tts{COMDAT}
+symbol could be exported from them just as a side effect of their
+implementation (e.g. they use some class internally).  When such libraries
+are rebuilt even with minor changes in their implementation (unfortunately
+with C++ shared libraries it is usually not very clear what part is exported
+ABI and what is not), some of those \tts{COMDAT} symbols in them could go
+away (e.g. because suddenly they use a different class internally and
+the previously used class is not referenced anywhere).  When \tts{COMDAT}
+objects are not merged across shared libraries, this makes no problems,
+as each library which needs the \tts{COMDAT} has its own copy.  But with
+\tts{COMDAT} duplicate removal between shared libraries there could suddenly
+be unresolved references and the shared libraries would need to be relinked.
+The only place where this could work safely is when a single package
+includes several C++ shared libraries which depend on each other.  They are
+then shipped always together and when one changes, all others need changing
+too.
+\end{itemize}
+
+\section{Prelink optimizations to reduce number of conflict fixups}
+
+\tts{Prelink} can optimize out some conflict fixups if it can prove that
+the changes are not observable by the application at runtime (opening its
+executable and reading it doesn't count).  If there is a data object in some
+shared library with a symbol that is overridden by a symbol in a different
+shared library earlier in global symbol lookup scope or in the executable, then
+that data object is likely never referenced and it shouldn't matter what it
+contains.  Examine the following example:
+
+\noindent{{\small\begin{verbatim}
+$ cat > test1.c <<EOF
+int i, j, k;
+struct A { int *a; int *b; int *c; } x = { &i, &j, &k };
+struct A *y = &x;
+EOF
+$ cat > test2.c <<EOF
+int i, j, k;
+struct A { int *a; int *b; int *c; } x = { &i, &j, &k };
+struct A *z = &x;
+EOF
+$ cat > test.c <<EOF
+#include <stdio.h>
+extern struct A { int *a; int *b; int *c; } *y, *z;
+int main (void)
+{
+  printf ("%p: %p %p %p\n", y, y->a, y->b, y->c);
+  printf ("%p: %p %p %p\n", z, z->a, z->b, z->c);
+}
+EOF
+$ gcc -nostdlib -shared -fpic -s -o test1.so test1.c
+$ gcc -nostdlib -shared -fpic -o test2.so test2.c ./test1.so
+$ gcc -o test test.c ./test2.so ./test1.so
+$ ./test
+0xaf3314: 0xaf33b0 0xaf33a8 0xaf33ac
+0xaf3314: 0xaf33b0 0xaf33a8 0xaf33ac
+\end{verbatim}}
+\prelinklistingcaption{C example where conflict fixups could be optimized out}}
+
+In this example there are 3 conflict fixups pointing into the 12 byte
+long {\sl x} object in \tts{test1.so} shared library (among other
+conflicts).  And nothing in the program can poke at {\sl x} content
+in \tts{test1.so}, simply because it has to look at it through
+{\sl x} symbol which resolves to \tts{test2.so}.  So in this
+case \tts{prelink} could skip those 3 conflicts.  Unfortunately
+it is not that easy:
+
+\noindent{{\small\begin{verbatim}
+$ cat > test3.c <<EOF
+int i, j, k;
+static struct A { int *a; int *b; int *c; } local = { &i, &j, &k };
+extern struct A x;
+struct A *y = &x;
+struct A *y2 = &local;
+extern struct A x __attribute__((alias ("local")));
+EOF
+$ cat > test4.c <<EOF
+#include <stdio.h>
+extern struct A { int *a; int *b; int *c; } *y, *y2, *z;
+int main (void)
+{
+  printf ("%p: %p %p %p\n", y, y->a, y->b, y->c);
+  printf ("%p: %p %p %p\n", y2, y2->a, y2->b, y2->c);
+  printf ("%p: %p %p %p\n", z, z->a, z->b, z->c);
+}
+EOF
+$ gcc -nostdlib -shared -fpic -s -o test3.so test3.c
+$ gcc -nostdlib -shared -fpic -o test4.so test2.c ./test3.so
+$ gcc -o test4 test4.c ./test4.so ./test3.so
+$ ./test4
+0x65a314: 0x65a3b0 0x65a3a8 0x65a3ac
+0xbd1328: 0x65a3b0 0x65a3a8 0x65a3ac
+0x65a314: 0x65a3b0 0x65a3a8 0x65a3ac
+\end{verbatim}}
+\prelinklistingcaption{Modified C example where conflict fixups cannot be removed}}
+
+In this example, there are again 3 conflict fixups pointing into the
+12 byte long {\sl x} object in \tts{test3.so} shared library.
+The fact that variable local is located at the same 12 bytes
+is totally invisible to prelink, as local is a \tts{STB\_LOCAL}
+symbol which doesn't show up in \tts{.dynsym} section.  But if those
+3 conflict fixups are removed, then suddenly program's observable
+behavior changes (the last 3 addresses on second line would be
+different than those on first or third line).
+
+Fortunately, there are at least some objects where \tts{prelink}
+can be reasonably sure they will never be referenced through some
+local alias.  Those are various compiler generated objects with
+well defined meaning which is \tts{prelink} able to identify
+in shared libraries.  The most important ones are C++ virtual tables
+and {\sl RTTI} data.  They are emitted as COMDAT data by the compiler,
+in GCC into \tts{.gnu.linkonce.d.*} sections.  Data or code in these
+sections can be accessed only through global symbols, otherwise linker
+might create unexpected results when two or more of these sections
+are merged together (all but one deleted).  When \tts{prelink} is checking
+for such data, it first checks whether the shared library in question
+is linked against \tts{libstdc++.so}.  If not, it is not a C++ library
+(or incorrectly built one) and thus it makes no sense to search any further.
+It looks only in \tts{.data} section, for \tts{STB\_WEAK} \tts{STT\_OBJECT}
+symbols whose names start with certain prefixes
+\footnote{\tts{\_\_vt\_} for GCC 2.95.x and 2.96-RH virtual tables,
+\tts{\_ZTV} for GCC 3.x virtual tables and \tts{\_ZTI} for GCC 3.x {\sl RTTI} data.}
+and where no other symbols (in dynamic symbol table) point into the objects.
+If these objects are unused because there is a conflict on their symbol,
+all conflict fixups pointing into the virtual table or {\sl RTTI} structure
+can be discarded.
+
+Another possible optimization is again related to C++ virtual tables.
+Function addresses in them are not intended for pointer comparisons.
+C++ code only loads them from the virtual tables and calls through
+the pointer.  Pointers to member functions are handled differently.
+As pointer equivalence is the only reason why all function pointers
+resolve to \tts{PLT} slots in the executable even when the executable doesn't
+include implementation of the function (i.e. has \tts{SHN\_UNDEF} symbol
+with non-zero \tts{st\_value} pointing at the \tts{PLT} slot in the
+executable), \tts{prelink} can resolve method addresses in virtual tables
+to the actual method implementation.  In many cases this is in the same
+library as the virtual table (or in one of libraries in its natural
+symbol lookup scope), so a conflict fixup is unnecessary.
+This optimization speeds up programs also after control is transfered
+to the application and not just the time to start up the application,
+although just a few cycles per method call.
+
+The conflict fixup reduction is quite big on some programs.
+Below is statistics for \tts{kmail} program on completely unprelinked box:
+
+\noindent{{\small\begin{verbatim}
+$ LD_DEBUG=statistics /usr/bin/kmail 2>&1 | sed '2,8!d;s/^ *//'
+10621:       total startup time in dynamic loader: 240724867 clock cycles
+10621:                 time needed for relocation: 234049636 clock cycles (97.2%)
+10621:                      number of relocations: 34854
+10621:           number of relocations from cache: 74364
+10621:             number of relative relocations: 35351
+10621:                time needed to load objects: 6241678 clock cycles (2.5%)
+$ ls -l /usr/bin/kmail
+-rwxr-xr-x    1 root     root      2149084 Oct  2 12:05 /usr/bin/kmail
+$ ( Xvfb :3 & ) >/dev/null 2>&1 </dev/null; sleep 20
+$ ( DISPLAY=:3 kmail& ) >/dev/null 2>&1 </dev/null; sleep 10; killall kmail
+$ ( DISPLAY=:3 kmail& ) >/dev/null 2>&1 </dev/null; sleep 10
+$ cat /proc/`/sbin/pidof kmail`/statm
+4164 4164 3509 224 33 3907 655
+$ killall Xvfb kdeinit kmail
+\end{verbatim}}
+\prelinklistingcaption{Statistics for unprelinked \tts{kmail}}}
+
+\tts{statm} special file for a process contains its memory statistics.
+The numbers in it mean in order total number of used pages (on IA-32
+Linux a page is 4KB), number of resident pages (i.e. not swapped out),
+number of shared pages, number of text pages, number of library pages,
+number of stack and other pages and number of dirty pages used by the
+process.  Distinction between text and library pages is very rough,
+so those numbers aren't that much useful.  Of interest are mainly
+first number, third number and last number.
+
+Statistics for \tts{kmail} on completely prelinked box:
+
+\noindent{{\small\begin{verbatim}
+$ LD_DEBUG=statistics /usr/bin/kmail 2>&1 | sed '2,8!d;s/^ *//'
+14864:       total startup time in dynamic loader: 8409504 clock cycles
+14864:                 time needed for relocation: 3024720 clock cycles (35.9%)
+14864:                      number of relocations: 0
+14864:           number of relocations from cache: 8961
+14864:             number of relative relocations: 0
+14864:                time needed to load objects: 4897336 clock cycles (58.2%)
+$ ls -l /usr/bin/kmail
+-rwxr-xr-x    1 root     root      2269500 Oct  2 12:05 /usr/bin/kmail
+$ ( Xvfb :3 & ) >/dev/null 2>&1 </dev/null; sleep 20
+$ ( DISPLAY=:3 kmail& ) >/dev/null 2>&1 </dev/null; sleep 10; killall kmail
+$ ( DISPLAY=:3 kmail& ) >/dev/null 2>&1 </dev/null; sleep 10
+$ cat /proc/`/sbin/pidof kmail`/statm
+3803 3803 3186 249 33 3521 617
+$ killall Xvfb kdeinit kmail
+\end{verbatim}}
+\prelinklistingcaption{Statistics for prelinked \tts{kmail}}}
+
+Statistics for \tts{kmail} on completely prelinked box with C++ conflict fixup
+optimizations turned off:
+
+\noindent{{\small\begin{verbatim}
+$ LD_DEBUG=statistics /usr/bin/kmail 2>&1 | sed '2,8!d;s/^ *//'
+20645:       total startup time in dynamic loader: 9704168 clock cycles
+20645:                 time needed for relocation: 4734715 clock cycles (48.7%)
+20645:                      number of relocations: 0
+20645:           number of relocations from cache: 59871
+20645:             number of relative relocations: 0
+20645:                time needed to load objects: 4487971 clock cycles (46.2%)
+ls -l /usr/bin/kmail
+-rwxr-xr-x    1 root     root      2877360 Oct  2 12:05 /usr/bin/kmail
+$ ( Xvfb :3 & ) >/dev/null 2>&1 </dev/null; sleep 20
+$ ( DISPLAY=:3 kmail& ) >/dev/null 2>&1 </dev/null; sleep 10; killall kmail
+$ ( DISPLAY=:3 kmail& ) >/dev/null 2>&1 </dev/null; sleep 10
+$ cat /proc/`/sbin/pidof kmail`/statm
+3957 3957 3329 398 33 3526 628
+$ killall Xvfb kdeinit kmail
+\end{verbatim}}
+\prelinklistingcaption{Statistics for prelinked \tts{kmail} without conflict fixup reduction}}
+
+On this application, C++ conflict fixup optimizations saved 50910 unneeded
+conflict fixups, speeded up startup by 13.3\% and decreased number of dirty
+pages by 11, which means the application needs 44KB less memory per-process.
+
+\section{Thread Local Storage support}
+
+Thread Local Storage ([12], [13], [14]) support has been recently added to
+GCC, GNU binutils and GNU C Library.  \tts{TLS} support is a set of new
+relocations which together with dynamic linker and POSIX thread library
+additions provide faster and easier to use alternative to traditional
+POSIX thread local data API (\tts{pthread\_getspecific},
+\tts{pthread\_setspecific}, \tts{pthread\_key\_*}).
+
+\tts{TLS} necessitated several changes to \tts{prelink}.  Thread Local
+symbols (with type \tts{STT\_TLS}) must not be relocated, as they are
+relative to the start of \tts{PT\_TLS} segment and thus not virtual
+addresses.  The dynamic linker had to be enhanced so that it tells
+\tts{prelink} at \tts{LD\_TRACE\_PRELINKING} time what \tts{TLS} module
+IDs have been assigned and what addresses relative to start of \tts{TLS}
+block have been given to \tts{PT\_TLS} segment of each library or executable.
+There are 3 classes of new \tts{TLS} dynamic relocations \tts{prelink}
+is interested in (with different names on different architectures).
+
+In first class are module ID relocations, which are used for \tts{TLS}
+Global Dynamic and Local Dynamic models (for Global Dynamic model
+they are supposed to resolve to module ID of the executable or shared library
+of particular \tts{STT\_TLS} symbol, for Local Dynamic model this
+resolves to module ID of the containing shared library).  These
+relocations are hard to prelink in any useful way without moving
+\tts{TLS} module ID assignment from the dynamic linker to \tts{prelink}.
+Although \tts{prelink} can find out what shared library will contain
+particular \tts{STT\_TLS} symbol unless there will be conflicts
+for that symbol, it doesn't know how many shared libraries with
+\tts{PT\_TLS} segment will precede it or whether executable will or
+will not have \tts{PT\_TLS} segment.  Until \tts{TLS} is widely
+deployed by many libraries, \tts{prelink} could guess that
+only \tts{libc.so} will have \tts{PT\_TLS} and store 1 (first module ID
+the dynamic linker assigns), but given that \tts{libc.so} uses just
+one such relocation it is not probably worth doing this when soon other
+shared libraries besides \tts{libc.so} and \tts{libGL.so} start using
+it heavily.  Because of this \tts{prelink} doesn't do anything special
+when prelinking shared libraries with these relocations and for each
+relocations in this class creates one conflict fixup.
+
+In second class are relocations which resolve to \tts{st\_value}
+of some \tts{STT\_TLS} symbol.  These relocations are used in
+Global Dynamic \tts{TLS} model (in Local Dynamic they are resolved
+at link time already) and from \tts{prelink} point of view they are
+much more similar to normal relocations than the other two classes.
+When the \tts{STT\_TLS} symbol is looked up successfully in shared library's
+natural search scope, \tts{prelink} just stores its \tts{st\_value}
+into the relocation.  The chances there will be a conflict are even
+smaller than with normal symbol lookups, since overloading \tts{TLS}
+symbols means wasted memory in each single thread and thus library
+writers will try to avoid it if possible.
+
+The third class includes relocations which resolve to offsets within
+program's initial \tts{TLS} block
+\footnote{Negative on architectures which have
+\tts{TLS} block immediately below thread pointer (e.g. IA-32, AMD64,
+SPARC, S/390) and positive on architectures which have \tts{TLS} block
+at thread pointer or a few bytes above it (e.g. PowerPC, Alpha, IA-64,
+SuperH).}
+Relocation in this class are used in Initial Exec \tts{TLS} model
+(or in Local Exec model if this model is supported in shared libraries).
+These offsets are even harder to predict than module IDs and unlike
+module IDs it wouldn't be very helpful if they were assigned by
+\tts{prelink} instead of dynamic linker (which would just read them
+from some dynamic tag).  That's because \tts{TLS} block needs to be
+packed tightly and any assignments in \tts{prelink} couldn't take
+into account other shared libraries linked into the same executable
+and the executable itself.  Similarly to module ID relocations,
+\tts{prelink} doesn't do anything about them when prelinking shared
+libraries and for each such relocation creates a conflict fixup.
+
+\section{Prelinking of executables and shared libraries}
+
+Rewriting of executables is harder than for shared libraries, both because
+there are more changes necessary and because shared libraries are
+relocatable and thus have dynamic relocations for all absolute addresses.
+
+After collecting all information from the dynamic linker and assigning
+virtual address space slots to all shared libraries, prelinking of shared
+libraries involves following steps:
+\begin{itemize}
+\item Relocation of the shared library to the assigned base address.
+\item \tts{REL} to \tts{RELA} conversion if needed (the only step which
+changes sizes of allocated sections in the middle).
+\item On architectures which have \tts{SHT\_NOBITS} \tts{.plt} sections,
+before relocations are applied the section needs to be converted to
+\tts{SHT\_PROGBITS}.  As the section needs to be at the end (or after it)
+of file backed part of some \tts{PT\_LOAD} segment, this just means that
+the file backed up part needs to be enlarged, the file filled with zeros
+and all following section file offsets or program header entry file
+offsets adjusted.  All \tts{SHT\_NOBITS} sections in the same \tts{PT\_LOAD}
+segment with virtual addresses lower than the \tts{.plt} start address
+need to be converted from \tts{SHT\_NOBITS} to \tts{SHT\_PROGBITS} too.
+Without making the section \tts{SHT\_PROGBITS}, \tts{prelink} cannot
+apply relocations against it as such sections contain only zeros.
+Architectures with \tts{SHT\_NOBITS} \tts{.plt} section supported by
+\tts{prelink} are PowerPC and PowerPC64.
+\item Applying relocations.  For each dynamic relocation in the shared
+library, address of relocation's symbol looked up in natural symbol lookup
+search scope of the shared library (or 0 if the symbol is not found in
+that search scope) is stored in an architecture and relocation type
+dependent way to memory pointed by \tts{r\_offset} field of the relocation.
+This step uses symbol lookup information provided by dynamic linker.
+\item Addition or modification of \tts{DT\_CHECKSUM} and
+\tts{DT\_GNU\_PRELINKED} dynamic tags.
+\footnote{\tts{Prelink} is not able to grow \tts{.dynamic} section, so it
+needs some spare dynamic tags (DT\_NULL) at the end of \tts{.dynamic}
+section.  GNU linker versions released after August 2001 leave space by
+default.}  The former is set to checksum of allocated sections in the
+shared library, the latter to time of prelinking.
+\item On architectures which don't use writable \tts{.plt}, but instead use
+\tts{.got.plt} (this section is merged during linking into \tts{.got})
+section, \tts{prelink} typically stores address into the first PLT slot
+in \tts{.plt} section to the reserved second word of \tts{.got} section.
+On these architectures, the dynamic linker has to initialize \tts{.plt}
+section if lazy binding.  On non-prelinked executables or shared libraries
+this typically means adding load offset to the values in \tts{.got.plt}
+section,  for prelinked shared libraries or executables if prelinking
+information cannot be used it needs to compute the right values in
+\tts{.got.plt} section without looking at this section's content
+(since it contains prelinking information).  The second word in \tts{.got}
+section is used for this computation.
+\item Addition of \tts{.gnu\_prelink\_undo} unallocated section if not
+present yet.  This section is used by \tts{prelink} internally during
+undo operation.
+\item Addition of \tts{.gnu\_liblist} and \tts{.gnu\_libstr} unallocated
+sections or, if they are already present, their update including possible
+growing or shrinking.  These sections are used only by \tts{prelink} to
+compare the dependent libraries (and their order) at the time when the
+shared library was prelinked against current dependencies.  If a shared
+library has no dependencies (e.g. dynamic linker), these sections are not
+present.
+\end{itemize}
+
+Adding or resizing unallocated section needs just file offsets of following
+unallocated sections recomputed (ensuring proper alignment), growing section
+header table and \tts{.shstrtab} and adding new section names to that section.
+
+Prelinking of executables involves following steps:
+\begin{itemize}
+\item \tts{REL} to \tts{RELA} conversion if needed.
+\item \tts{SHT\_NOBITS} to \tts{SHT\_PROGBITS} conversion of \tts{.plt} section
+if needed.
+\item Applying relocations.
+\item Addition or resizing of allocated \tts{.gnu.conflict} section containing
+list of conflict fixups.
+\item Addition or resizing of allocated \tts{.gnu.liblist} section which is used
+by the dynamic linker at runtime to see if none of the dependencies changed
+or were reordered.  If they were, it continues normal relocation processing,
+otherwise they can be skipped and only conflict fixups applied.
+\item Growing of allocated \tts{.dynstr} section, where strings referenced from
+\tts{.gnu.liblist} section need to be added.
+\item If there are any COPY relocations (which \tts{prelink} wants to handle
+rather than deferring them as conflict fixups to runtime), they need to be applied.
+\item Modifying second word in \tts{.got} section for \tts{.got.plt} using
+architectures.
+\item Addition or adjusting of dynamic tags which allow the dynamic linker
+to find the \tts{.gnu.liblist} and \tts{.gnu.conflict} sections and their
+sizes.  \tts{DT\_GNU\_CONFLICT} and \tts{DT\_GNU\_CONFLICTSZ} should be present
+if there are any conflict fixups.  It should contain the virtual address of
+the \tts{.gnu.conflict} section start resp. its size in bytes. 
+\tts{DT\_GNU\_LIBLIST} and \tts{DT\_GNU\_LIBLISTSZ} need to be present in
+all prelinked executables and must be equal the to virtual address of
+the \tts{.gnu.liblist} section and its size in bytes.
+\item Addition of \tts{.gnu\_prelink\_undo} unallocated section if not present.
+\end{itemize}
+
+Executables can have absolute relocations already applied (and without a
+dynamic relocation) to virtually any allocated \tts{SHT\_PROGBITS} section
+\footnote{One exception is \tts{.interp} special section.  It shouldn't have
+relocations applied to it, nor any other section should reference it.},
+against almost all allocated \tts{SHT\_PROGBITS} and \tts{SHT\_NOBITS}
+sections.  This means that when growing, adding or shrinking allocated
+sections in executables, all \tts{SHT\_PROGBITS} and \tts{SHT\_NOBITS} section
+must keep their original virtual addresses and sizes
+\footnote{With a notable exception of splitting one section into two
+covering the same virtual address range.}. \tts{Prelink} tries various
+places where to put allocated sections which were added or grew:
+\begin{itemize}
+\item In the unlikely case if there is already some gap between
+sections in read-only \tts{PT\_LOAD} segment where the section fits.
+\item If the \tts{SHT\_NOBITS} sections are small enough to fit
+into a page together with the preceding \tts{SHT\_PROGBITS} section and there
+is still some space in the page after the \tts{SHT\_NOBITS} sections.
+In this case, \tts{prelink} converts the \tts{SHT\_NOBITS} sections into
+\tts{SHT\_PROGBITS} sections, fills them with zeros and adds the new section
+after it.  This doesn't increase number of \tts{PT\_LOAD} segments, but
+unfortunately those added sections are writable.  This doesn't matter
+much for e.g. \tts{.gnu.conflict} section which is only used before control
+is transfered to the program, but could matter for \tts{.dynstr} which is
+used even during \tts{dlopen}.
+\item On IA-32, executables have for historical reasons base address 0x8048000.
+The reason for this was that when stack was put immediately below executables,
+stack and the executable could coexist in the same second level page table.
+Linux puts the stack typically at the end of virtual address space and so
+keeping this exact base address is not really necessary.  \tts{Prelink} can
+decrease the base address and thus increase size of read-only \tts{PT\_LOAD}
+segment while \tts{SHT\_PROGBITS} and \tts{SHT\_NOBITS} section can stay
+at their previous addresses.  Just their file offsets need to be increased.
+All these segment header adjustments need to be done in multiplies of
+\tts{ELF} page sizes, so even if \tts{prelink} chose to do similar things
+on architectures other than IA-32 which typically start executables on some address
+which is a power of 2, it would be only reasonable if \tts{ELF} page size
+on that architecture (which can be much bigger than page size used by the
+operating system) is very small.
+\item Last possibility is to create a new \tts{PT\_LOAD} segment.
+\footnote{Linux kernels before 2.4.10 loaded executables which had middle \tts{PT\_LOAD}
+segment with \tts{p\_memsz} bigger than \tts{p\_filesz} incorrectly, so
+\tts{prelink} should be only used on systems with 2.4.10 or later kernels.}
+Section immediately above program header table (typically \tts{.interp})
+has to be moved somewhere else, but if possible close to the beginning
+of the executable.  The new \tts{PT\_LOAD} segment is then added after the
+last \tts{PT\_LOAD} segment.  The segment has to be writable even when
+all the sections in it are read-only, unless it ends exactly on a page
+boundary, because \tts{brk} area starts immediately after the end of last
+\tts{PT\_LOAD} segment and the executable expects it to be writable.
+\end{itemize}
+
+So that verification works properly, if there is \tts{.gnu.prelink\_undo}
+section in the executable, \tts{prelink} first reshuffles the sections and
+segments for the purpose of finding places for the sections to the original
+sequence as recorded in the \tts{.gnu.prelink\_undo} section.
+Examples of the above mentioned cases:
+
+\noindent{{\small\begin{verbatim}
+$ SEDCMD='s/^.* \.plt.*$/.../;/\[.*\.text/,/\[.*\.got/d'
+$ SEDCMD2='/Section to Segment/,$d;/^Key to/,/^Program/d;/^[A-Z]/d;/^ *$/d'
+$ cat > test1.c <<EOF
+int main (void) { return 0; }
+EOF
+$ gcc -Wl,--verbose 2>&1 \
+  | sed '/^===/,/^===/!d;/^===/d;s/\.rel\.dyn/. += 512; &/' > test1.lds
+$ gcc -s -O2 -o test1 test1.c -Wl,-T,test1.lds
+$ readelf -Sl ./test1 | sed -e "$SEDCMD" -e "$SEDCMD2"
+  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
+  [ 0]                   NULL            00000000 000000 000000 00      0   0  0
+  [ 1] .interp           PROGBITS        08048114 000114 000013 00   A  0   0  1
+  [ 2] .note.ABI-tag     NOTE            08048128 000128 000020 00   A  0   0  4
+  [ 3] .hash             HASH            08048148 000148 000024 04   A  4   0  4
+  [ 4] .dynsym           DYNSYM          0804816c 00016c 000040 10   A  5   1  4
+  [ 5] .dynstr           STRTAB          080481ac 0001ac 000045 00   A  0   0  1
+  [ 6] .gnu.version      VERSYM          080481f2 0001f2 000008 02   A  4   0  2
+  [ 7] .gnu.version_r    VERNEED         080481fc 0001fc 000020 00   A  5   1  4
+  [ 8] .rel.dyn          REL             0804841c 00041c 000008 08   A  4   0  4
+  [ 9] .rel.plt          REL             08048424 000424 000008 08   A  4   b  4
+  [10] .init             PROGBITS        0804842c 00042c 000017 00  AX  0   0  4
+...
+  [22] .bss              NOBITS          080496f8 0006f8 000004 00  WA  0   0  4
+  [23] .comment          PROGBITS        00000000 0006f8 000132 00      0   0  1
+  [24] .shstrtab         STRTAB          00000000 00082a 0000be 00      0   0  1
+  Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
+  PHDR           0x000034 0x08048034 0x08048034 0x000e0 0x000e0 R E 0x4
+  INTERP         0x000114 0x08048114 0x08048114 0x00013 0x00013 R   0x1
+      [Requesting program interpreter: /lib/ld-linux.so.2]
+  LOAD           0x000000 0x08048000 0x08048000 0x005fc 0x005fc R E 0x1000
+  LOAD           0x0005fc 0x080495fc 0x080495fc 0x000fc 0x00100 RW  0x1000
+  DYNAMIC        0x000608 0x08049608 0x08049608 0x000c8 0x000c8 RW  0x4
+  NOTE           0x000128 0x08048128 0x08048128 0x00020 0x00020 R   0x4
+  STACK          0x000000 0x00000000 0x00000000 0x00000 0x00000 RW  0x4
+$ prelink -N ./test1
+$ readelf -Sl ./test1 | sed -e "$SEDCMD" -e "$SEDCMD2"
+  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
+  [ 0]                   NULL            00000000 000000 000000 00      0   0  0
+  [ 1] .interp           PROGBITS        08048114 000114 000013 00   A  0   0  1
+  [ 2] .note.ABI-tag     NOTE            08048128 000128 000020 00   A  0   0  4
+  [ 3] .hash             HASH            08048148 000148 000024 04   A  4   0  4
+  [ 4] .dynsym           DYNSYM          0804816c 00016c 000040 10   A  8   1  4
+  [ 5] .gnu.liblist      GNU_LIBLIST     080481ac 0001ac 000028 14   A  8   0  4
+  [ 6] .gnu.version      VERSYM          080481f2 0001f2 000008 02   A  4   0  2
+  [ 7] .gnu.version_r    VERNEED         080481fc 0001fc 000020 00   A  8   1  4
+  [ 8] .dynstr           STRTAB          0804821c 00021c 000058 00   A  0   0  1
+  [ 9] .gnu.conflict     RELA            08048274 000274 0000c0 0c   A  4   0  4
+  [10] .rel.dyn          REL             0804841c 00041c 000008 08   A  4   0  4
+  [11] .rel.plt          REL             08048424 000424 000008 08   A  4   d  4
+  [12] .init             PROGBITS        0804842c 00042c 000017 00  AX  0   0  4
+...
+  [24] .bss              NOBITS          080496f8 0006f8 000004 00  WA  0   0  4
+  [25] .comment          PROGBITS        00000000 0006f8 000132 00      0   0  1
+  [26] .gnu.prelink_undo PROGBITS        00000000 00082c 0004d4 01      0   0  4
+  [27] .shstrtab         STRTAB          00000000 000d00 0000eb 00      0   0  1
+  Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
+  PHDR           0x000034 0x08048034 0x08048034 0x000e0 0x000e0 R E 0x4
+  INTERP         0x000114 0x08048114 0x08048114 0x00013 0x00013 R   0x1
+      [Requesting program interpreter: /lib/ld-linux.so.2]
+  LOAD           0x000000 0x08048000 0x08048000 0x005fc 0x005fc R E 0x1000
+  LOAD           0x0005fc 0x080495fc 0x080495fc 0x000fc 0x00100 RW  0x1000
+  DYNAMIC        0x000608 0x08049608 0x08049608 0x000c8 0x000c8 RW  0x4
+  NOTE           0x000128 0x08048128 0x08048128 0x00020 0x00020 R   0x4
+  STACK          0x000000 0x00000000 0x00000000 0x00000 0x00000 RW  0x4
+\end{verbatim}}
+\prelinklistingcaption{Reshuffling of an executable with a gap between sections}}
+
+\begin{figure}[!ht]
+\centering
+\includegraphics[width=\textwidth]{gap}
+\caption{Reshuffling of an executable with a gap between sections}
+\end{figure}
+
+In the above sample, there was enough space between sections (particularly
+between the end of the \tts{.gnu.version\_r} section and the start of \tts{.rel.dyn})
+that the new sections could be added there.
+
+\noindent{{\small\begin{verbatim}
+$ SEDCMD='s/^.* \.plt.*$/.../;/\[.*\.text/,/\[.*\.got/d'
+$ SEDCMD2='/Section to Segment/,$d;/^Key to/,/^Program/d;/^[A-Z]/d;/^ *$/d'
+$ cat > test2.c <<EOF
+int main (void) { return 0; }
+EOF
+$ gcc -s -O2 -o test2 test2.c
+$ readelf -Sl ./test2 | sed -e "$SEDCMD" -e "$SEDCMD2"
+  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
+  [ 0]                   NULL            00000000 000000 000000 00      0   0  0
+  [ 1] .interp           PROGBITS        08048114 000114 000013 00   A  0   0  1
+  [ 2] .note.ABI-tag     NOTE            08048128 000128 000020 00   A  0   0  4
+  [ 3] .hash             HASH            08048148 000148 000024 04   A  4   0  4
+  [ 4] .dynsym           DYNSYM          0804816c 00016c 000040 10   A  5   1  4
+  [ 5] .dynstr           STRTAB          080481ac 0001ac 000045 00   A  0   0  1
+  [ 6] .gnu.version      VERSYM          080481f2 0001f2 000008 02   A  4   0  2
+  [ 7] .gnu.version_r    VERNEED         080481fc 0001fc 000020 00   A  5   1  4
+  [ 8] .rel.dyn          REL             0804821c 00021c 000008 08   A  4   0  4
+  [ 9] .rel.plt          REL             08048224 000224 000008 08   A  4   b  4
+  [10] .init             PROGBITS        0804822c 00022c 000017 00  AX  0   0  4
+...
+  [22] .bss              NOBITS          080494f8 0004f8 000004 00  WA  0   0  4
+  [23] .comment          PROGBITS        00000000 0004f8 000132 00      0   0  1
+  [24] .shstrtab         STRTAB          00000000 00062a 0000be 00      0   0  1
+  Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
+  PHDR           0x000034 0x08048034 0x08048034 0x000e0 0x000e0 R E 0x4
+  INTERP         0x000114 0x08048114 0x08048114 0x00013 0x00013 R   0x1
+      [Requesting program interpreter: /lib/ld-linux.so.2]
+  LOAD           0x000000 0x08048000 0x08048000 0x003fc 0x003fc R E 0x1000
+  LOAD           0x0003fc 0x080493fc 0x080493fc 0x000fc 0x00100 RW  0x1000
+  DYNAMIC        0x000408 0x08049408 0x08049408 0x000c8 0x000c8 RW  0x4
+  NOTE           0x000128 0x08048128 0x08048128 0x00020 0x00020 R   0x4
+  STACK          0x000000 0x00000000 0x00000000 0x00000 0x00000 RW  0x4
+$ prelink -N ./test2
+$ readelf -Sl ./test2 | sed -e "$SEDCMD" -e "$SEDCMD2"
+  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
+  [ 0]                   NULL            00000000 000000 000000 00      0   0  0
+  [ 1] .interp           PROGBITS        08048114 000114 000013 00   A  0   0  1
+  [ 2] .note.ABI-tag     NOTE            08048128 000128 000020 00   A  0   0  4
+  [ 3] .hash             HASH            08048148 000148 000024 04   A  4   0  4
+  [ 4] .dynsym           DYNSYM          0804816c 00016c 000040 10   A 23   1  4
+  [ 5] .gnu.liblist      GNU_LIBLIST     080481ac 0001ac 000028 14   A 23   0  4
+  [ 6] .gnu.version      VERSYM          080481f2 0001f2 000008 02   A  4   0  2
+  [ 7] .gnu.version_r    VERNEED         080481fc 0001fc 000020 00   A 23   1  4
+  [ 8] .rel.dyn          REL             0804821c 00021c 000008 08   A  4   0  4
+  [ 9] .rel.plt          REL             08048224 000224 000008 08   A  4   b  4
+  [10] .init             PROGBITS        0804822c 00022c 000017 00  AX  0   0  4
+...
+  [22] .bss              PROGBITS        080494f8 0004f8 000004 00  WA  0   0  4
+  [23] .dynstr           STRTAB          080494fc 0004fc 000058 00   A  0   0  1
+  [24] .gnu.conflict     RELA            08049554 000554 0000c0 0c   A  4   0  4
+  [25] .comment          PROGBITS        00000000 000614 000132 00      0   0  1
+  [26] .gnu.prelink_undo PROGBITS        00000000 000748 0004d4 01      0   0  4
+  [27] .shstrtab         STRTAB          00000000 000c1c 0000eb 00      0   0  1
+  Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
+  PHDR           0x000034 0x08048034 0x08048034 0x000e0 0x000e0 R E 0x4
+  INTERP         0x000114 0x08048114 0x08048114 0x00013 0x00013 R   0x1
+      [Requesting program interpreter: /lib/ld-linux.so.2]
+  LOAD           0x000000 0x08048000 0x08048000 0x003fc 0x003fc R E 0x1000
+  LOAD           0x0003fc 0x080493fc 0x080493fc 0x00218 0x00218 RW  0x1000
+  DYNAMIC        0x000408 0x08049408 0x08049408 0x000c8 0x000c8 RW  0x4
+  NOTE           0x000128 0x08048128 0x08048128 0x00020 0x00020 R   0x4
+  STACK          0x000000 0x00000000 0x00000000 0x00000 0x00000 RW  0x4
+\end{verbatim}}
+\prelinklistingcaption{Reshuffling of an executable with small \tts{.bss}}}
+
+\begin{figure}[!ht]
+\centering
+\includegraphics[width=\textwidth]{bss}
+\caption{Reshuffling of an executable with small \tts{.bss}}
+\end{figure}
+
+In this case \tts{.bss} section was small enough that \tts{prelink}
+converted it to \tts{SHT\_PROGBITS}.
+
+\noindent{{\small\begin{verbatim}
+$ SEDCMD='s/^.* \.plt.*$/.../;/\[.*\.text/,/\[.*\.got/d'
+$ SEDCMD2='/Section to Segment/,$d;/^Key to/,/^Program/d;/^[A-Z]/d;/^ *$/d'
+$ cat > test3.c <<EOF
+int foo [4096];
+int main (void) { return 0; }
+EOF
+$ gcc -s -O2 -o test3 test3.c
+$ readelf -Sl ./test3 | sed -e "$SEDCMD" -e "$SEDCMD2"
+  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
+  [ 0]                   NULL            00000000 000000 000000 00      0   0  0
+  [ 1] .interp           PROGBITS        08048114 000114 000013 00   A  0   0  1
+  [ 2] .note.ABI-tag     NOTE            08048128 000128 000020 00   A  0   0  4
+  [ 3] .hash             HASH            08048148 000148 000024 04   A  4   0  4
+  [ 4] .dynsym           DYNSYM          0804816c 00016c 000040 10   A  5   1  4
+  [ 5] .dynstr           STRTAB          080481ac 0001ac 000045 00   A  0   0  1
+  [ 6] .gnu.version      VERSYM          080481f2 0001f2 000008 02   A  4   0  2
+  [ 7] .gnu.version_r    VERNEED         080481fc 0001fc 000020 00   A  5   1  4
+  [ 8] .rel.dyn          REL             0804821c 00021c 000008 08   A  4   0  4
+  [ 9] .rel.plt          REL             08048224 000224 000008 08   A  4   b  4
+  [10] .init             PROGBITS        0804822c 00022c 000017 00  AX  0   0  4
+...
+  [22] .bss              NOBITS          08049500 000500 004020 00  WA  0   0 32
+  [23] .comment          PROGBITS        00000000 000500 000132 00      0   0  1
+  [24] .shstrtab         STRTAB          00000000 000632 0000be 00      0   0  1
+  Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
+  PHDR           0x000034 0x08048034 0x08048034 0x000e0 0x000e0 R E 0x4
+  INTERP         0x000114 0x08048114 0x08048114 0x00013 0x00013 R   0x1
+      [Requesting program interpreter: /lib/ld-linux.so.2]
+  LOAD           0x000000 0x08048000 0x08048000 0x003fc 0x003fc R E 0x1000
+  LOAD           0x0003fc 0x080493fc 0x080493fc 0x000fc 0x04124 RW  0x1000
+  DYNAMIC        0x000408 0x08049408 0x08049408 0x000c8 0x000c8 RW  0x4
+  NOTE           0x000128 0x08048128 0x08048128 0x00020 0x00020 R   0x4
+  STACK          0x000000 0x00000000 0x00000000 0x00000 0x00000 RW  0x4
+$ prelink -N ./test3
+$ readelf -Sl ./test3 | sed -e "$SEDCMD" -e "$SEDCMD2"
+  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
+  [ 0]                   NULL            00000000 000000 000000 00      0   0  0
+  [ 1] .interp           PROGBITS        08047114 000114 000013 00   A  0   0  1
+  [ 2] .note.ABI-tag     NOTE            08047128 000128 000020 00   A  0   0  4
+  [ 3] .dynstr           STRTAB          08047148 000148 000058 00   A  0   0  1
+  [ 4] .gnu.liblist      GNU_LIBLIST     080471a0 0001a0 000028 14   A  3   0  4
+  [ 5] .gnu.conflict     RELA            080471c8 0001c8 0000c0 0c   A  7   0  4
+  [ 6] .hash             HASH            08048148 001148 000024 04   A  7   0  4
+  [ 7] .dynsym           DYNSYM          0804816c 00116c 000040 10   A  3   1  4
+  [ 8] .gnu.version      VERSYM          080481f2 0011f2 000008 02   A  7   0  2
+  [ 9] .gnu.version_r    VERNEED         080481fc 0011fc 000020 00   A  3   1  4
+  [10] .rel.dyn          REL             0804821c 00121c 000008 08   A  7   0  4
+  [11] .rel.plt          REL             08048224 001224 000008 08   A  7   d  4
+  [12] .init             PROGBITS        0804822c 00122c 000017 00  AX  0   0  4
+...
+  [24] .bss              NOBITS          08049500 0014f8 004020 00  WA  0   0 32
+  [25] .comment          PROGBITS        00000000 0014f8 000132 00      0   0  1
+  [26] .gnu.prelink_undo PROGBITS        00000000 00162c 0004d4 01      0   0  4
+  [27] .shstrtab         STRTAB          00000000 001b00 0000eb 00      0   0  1
+  Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
+  PHDR           0x000034 0x08047034 0x08047034 0x000e0 0x000e0 R E 0x4
+  INTERP         0x000114 0x08047114 0x08047114 0x00013 0x00013 R   0x1
+      [Requesting program interpreter: /lib/ld-linux.so.2]
+  LOAD           0x000000 0x08047000 0x08047000 0x013fc 0x013fc R E 0x1000
+  LOAD           0x0013fc 0x080493fc 0x080493fc 0x000fc 0x04124 RW  0x1000
+  DYNAMIC        0x001408 0x08049408 0x08049408 0x000c8 0x000c8 RW  0x4
+  NOTE           0x000128 0x08047128 0x08047128 0x00020 0x00020 R   0x4
+  STACK          0x000000 0x00000000 0x00000000 0x00000 0x00000 RW  0x4
+\end{verbatim}}
+\prelinklistingcaption{Reshuffling of an executable with decreasing of base address}}
+
+\begin{figure}[!ht]
+\centering
+\includegraphics[width=\textwidth]{basemove}
+\caption{Reshuffling of an executable with decreasing of the base address}
+\end{figure}
+
+In \tts{test3} the base address of the executable was decreased by one page and
+the new sections added there.
+
+\noindent{{\small\begin{verbatim}
+$ SEDCMD='s/^.* \.plt.*$/.../;/\[.*\.text/,/\[.*\.got/d'
+$ SEDCMD2='/Section to Segment/,$d;/^Key to/,/^Program/d;/^[A-Z]/d;/^ *$/d'
+$ cat > test4.c <<EOF
+int foo [4096];
+int main (void) { return 0; }
+EOF
+$ gcc -Wl,--verbose 2>&1 \
+  | sed '/^===/,/^===/!d;/^===/d;s/0x08048000/0x08000000/' > test4.lds
+$ gcc -s -O2 -o test4 test4.c -Wl,-T,test4.lds
+$ readelf -Sl ./test4 | sed -e "$SEDCMD" -e "$SEDCMD2"
+  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
+  [ 0]                   NULL            00000000 000000 000000 00      0   0  0
+  [ 1] .interp           PROGBITS        08000114 000114 000013 00   A  0   0  1
+  [ 2] .note.ABI-tag     NOTE            08000128 000128 000020 00   A  0   0  4
+  [ 3] .hash             HASH            08000148 000148 000024 04   A  4   0  4
+  [ 4] .dynsym           DYNSYM          0800016c 00016c 000040 10   A  5   1  4
+  [ 5] .dynstr           STRTAB          080001ac 0001ac 000045 00   A  0   0  1
+  [ 6] .gnu.version      VERSYM          080001f2 0001f2 000008 02   A  4   0  2
+  [ 7] .gnu.version_r    VERNEED         080001fc 0001fc 000020 00   A  5   1  4
+  [ 8] .rel.dyn          REL             0800021c 00021c 000008 08   A  4   0  4
+  [ 9] .rel.plt          REL             08000224 000224 000008 08   A  4   b  4
+  [10] .init             PROGBITS        0800022c 00022c 000017 00  AX  0   0  4
+...
+  [22] .bss              NOBITS          08001500 000500 004020 00  WA  0   0 32
+  [23] .comment          PROGBITS        00000000 000500 000132 00      0   0  1
+  [24] .shstrtab         STRTAB          00000000 000632 0000be 00      0   0  1
+  Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
+  PHDR           0x000034 0x08000034 0x08000034 0x000e0 0x000e0 R E 0x4
+  INTERP         0x000114 0x08000114 0x08000114 0x00013 0x00013 R   0x1
+      [Requesting program interpreter: /lib/ld-linux.so.2]
+  LOAD           0x000000 0x08000000 0x08000000 0x003fc 0x003fc R E 0x1000
+  LOAD           0x0003fc 0x080013fc 0x080013fc 0x000fc 0x04124 RW  0x1000
+  DYNAMIC        0x000408 0x08001408 0x08001408 0x000c8 0x000c8 RW  0x4
+  NOTE           0x000128 0x08000128 0x08000128 0x00020 0x00020 R   0x4
+  STACK          0x000000 0x00000000 0x00000000 0x00000 0x00000 RW  0x4
+$ prelink -N ./test4
+$ readelf -Sl ./test4 | sed -e "$SEDCMD" -e "$SEDCMD2"
+  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
+  [ 0]                   NULL            00000000 000000 000000 00      0   0  0
+  [ 1] .interp           PROGBITS        08000134 000134 000013 00   A  0   0  1
+  [ 2] .note.ABI-tag     NOTE            08000148 000148 000020 00   A  0   0  4
+  [ 3] .hash             HASH            08000168 000168 000024 04   A  4   0  4
+  [ 4] .dynsym           DYNSYM          0800018c 00018c 000040 10   A 22   1  4
+  [ 5] .gnu.version      VERSYM          080001f2 0001f2 000008 02   A  4   0  2
+  [ 6] .gnu.version_r    VERNEED         080001fc 0001fc 000020 00   A 22   1  4
+  [ 7] .rel.dyn          REL             0800021c 00021c 000008 08   A  4   0  4
+  [ 8] .rel.plt          REL             08000224 000224 000008 08   A  4   a  4
+  [ 9] .init             PROGBITS        0800022c 00022c 000017 00  AX  0   0  4
+...
+  [21] .bss              NOBITS          08001500 0004f8 004020 00  WA  0   0 32
+  [22] .dynstr           STRTAB          080064f8 0004f8 000058 00   A  0   0  1
+  [23] .gnu.liblist      GNU_LIBLIST     08006550 000550 000028 14   A 22   0  4
+  [24] .gnu.conflict     RELA            08006578 000578 0000c0 0c   A  4   0  4
+  [25] .comment          PROGBITS        00000000 000638 000132 00      0   0  1
+  [26] .gnu.prelink_undo PROGBITS        00000000 00076c 0004d4 01      0   0  4
+  [27] .shstrtab         STRTAB          00000000 000c40 0000eb 00      0   0  1
+  Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
+  PHDR           0x000034 0x08000034 0x08000034 0x000e0 0x000e0 R E 0x4
+  INTERP         0x000134 0x08000134 0x08000134 0x00013 0x00013 R   0x1
+      [Requesting program interpreter: /lib/ld-linux.so.2]
+  LOAD           0x000000 0x08000000 0x08000000 0x003fc 0x003fc R E 0x1000
+  LOAD           0x0003fc 0x080013fc 0x080013fc 0x000fc 0x04124 RW  0x1000
+  LOAD           0x0004f8 0x080064f8 0x080064f8 0x00140 0x00140 RW  0x1000
+  DYNAMIC        0x000408 0x08001408 0x08001408 0x000c8 0x000c8 RW  0x4
+  NOTE           0x000148 0x08000148 0x08000148 0x00020 0x00020 R   0x4
+  STACK          0x000000 0x00000000 0x00000000 0x00000 0x00000 RW  0x4
+\end{verbatim}}
+\prelinklistingcaption{Reshuffling of an executable with addition of a new segment}}
+
+\begin{figure}[!ht]
+\centering
+\includegraphics[width=\textwidth]{newseg}
+\caption{Reshuffling of an executable with addition of a new segment}
+\end{figure}
+
+In the last example, base address was not decreased but instead a new
+\tts{PT\_LOAD} segment has been added.
+
+\tts{R\_<arch>\_COPY} relocations are typically against first part of the
+\tts{SHT\_NOBITS} \tts{.bss} section.  So that \tts{prelink} can apply them,
+it needs to first change their section to \tts{SHT\_PROGBITS}, but as \tts{.bss}
+section typically occupies much larger part of memory, it is not desirable
+to convert \tts{.bss} section into \tts{SHT\_PROGBITS} as whole.  A section
+cannot be partly \tts{SHT\_PROGBITS} and partly \tts{SHT\_NOBITS}, so \tts{prelink}
+first splits the section into two parts, first \tts{.dynbss} which covers area
+from the start of \tts{.bss} section up to highest byte to which some COPY
+relocation is applied and then the old \tts{.bss}.  The first is converted
+to \tts{SHT\_PROGBITS} and its size is decreased, the latter stays \tts{SHT\_NOBITS}
+and its start address and file offset are adjusted as well as its size decreased.
+The dynamic linker handles relocations in the executable last, so \tts{prelink}
+cannot just copy memory from the shared library where the symbol of the COPY
+relocation has been looked up in.  There might be relocations applied by the
+dynamic linker in normal relocation processing to the objects, so \tts{prelink}
+has to first process the relocations against that memory area.  Relocations
+which don't need conflict fixups are already applied, so \tts{prelink} just
+needs to apply conflict fixups against the memory area, then copy it
+to the newly created \tts{.dynbss} section.
+
+Here is an example which shows various things which COPY relocation handling
+in \tts{prelink} needs to deal with:
+
+\noindent{{\small\begin{verbatim}
+$ cat > test1.c <<EOF
+struct A { char a; struct A *b; int *c; int *d; };
+int bar, baz;
+struct A foo = { 1, &foo, &bar, &baz };
+int *addr (void) { return &baz; }
+EOF
+$ cat > test.c <<EOF
+#include <stdio.h>
+struct A { char a; struct A *b; int *c; int *d; };
+int bar, *addr (void), big[8192];
+extern struct A foo;
+int main (void)
+{
+  printf ("%p: %d %p %p %p %p %p\n", &foo, foo.a, foo.b, foo.c, foo.d,
+         &bar, addr ());
+}
+EOF
+$ gcc -nostdlib -shared -fpic -s -o test1.so test1.c
+$ gcc -s -o test test.c ./test1.so
+$ ./test
+0x80496c0: 1 0x80496c0 0x80516e0 0x4833a4 0x80516e0 0x4833a4
+$ readelf -r test | sed '/\.rel\.dyn/,/\.rel\.plt/!d;/^0/!d'
+080496ac  00000c06 R_386_GLOB_DAT    00000000   __gmon_start__
+080496c0  00000605 R_386_COPY        080496c0   foo
+$ readelf -S test | grep bss
+  [22] .bss              NOBITS          080496c0 0006c0 008024 00  WA  0   0 32
+$ prelink -N ./test ./test1.so
+$ readelf -s test | grep foo
+     6: 080496c0    16 OBJECT  GLOBAL DEFAULT   25 foo
+$ readelf -s test1.so | grep foo
+    15: 004a9314    16 OBJECT  GLOBAL DEFAULT    6 foo
+$ readelf -r test | sed '/.gnu.conflict/,/\.rel\.dyn/!d;/^0/!d'
+004a9318  00000001 R_386_32                                     080496c0
+004a931c  00000001 R_386_32                                     080516e0
+005f9874  00000001 R_386_32                                     fffffff0
+005f9878  00000001 R_386_32                                     00000001
+005f98bc  00000001 R_386_32                                     fffffff4
+005f9900  00000001 R_386_32                                     ffffffec
+005f9948  00000001 R_386_32                                     ffffffdc
+005f995c  00000001 R_386_32                                     ffffffe0
+005f9980  00000001 R_386_32                                     fffffff8
+005f9988  00000001 R_386_32                                     ffffffe4
+005f99a4  00000001 R_386_32                                     ffffffd8
+005f99c4  00000001 R_386_32                                     ffffffe8
+005f99d8  00000001 R_386_32                                     08048584
+004c2510  00000007 R_386_JUMP_SLOT                              00534460
+004c2514  00000007 R_386_JUMP_SLOT                              00534080
+004c2518  00000007 R_386_JUMP_SLOT                              00534750
+004c251c  00000007 R_386_JUMP_SLOT                              005342c0
+004c2520  00000007 R_386_JUMP_SLOT                              00534200
+$ objdump -s -j .dynbss test
+
+test:     file format elf32-i386
+
+Contents of section .dynbss:
+ 80496c0 01000000 c0960408 e0160508 a4934a00  ..............J.
+$ objdump -s -j .data test1.so
+
+test1.so:     file format elf32-i386
+
+Contents of section .data:
+ 4a9314 01000000 14934a00 a8934a00 a4934a00  ......J...J...J.
+$ readelf -S test | grep bss
+  [24] .dynbss           PROGBITS        080496c0 0016c0 000010 00  WA  0   0 32
+  [25] .bss              NOBITS          080496d0 0016d0 008014 00  WA  0   0 32
+$ sed 's/8192/1/' test.c > test2.c
+$ gcc -s -o test2 test2.c ./test1.so
+$ readelf -S test2 | grep bss
+  [22] .bss              NOBITS          080496b0 0006b0 00001c 00  WA  0   0  8
+$ prelink -N ./test2 ./test1.so
+$ readelf -S test2 | grep bss
+  [22] .dynbss           PROGBITS        080496b0 0006b0 000010 00  WA  0   0  8
+  [23] .bss              PROGBITS        080496c0 0006c0 00000c 00  WA  0   0  8
+\end{verbatim}}
+\prelinklistingcaption{Relocation handling of \tts{.dynbss} objects}}
+
+Because \tts{test.c} executable is not compiled as position independent code and
+takes address of {\sl foo} variable, a COPY relocation is needed to avoid
+dynamic relocation against executable's read-only \tts{PT\_LOAD} segment.
+The {\sl foo} object in \tts{test1.so} has one field with no relocations
+applied at all, one relocation against the variable itself, one relocation
+which needs a conflict fixup (as it is overridden by the variable in the
+executable) and one with relocation which doesn't need any fixups.
+The first and last field contain already the right values in prelinked
+\tts{test1.so}, while second and third one need to be changed for symbol
+addresses in the executable (as shown in the \tts{objdump} output).
+The conflict fixups against {\sl foo} in \tts{test1.so} need to stay
+(unless it is a C++ virtual table or {\sl RTTI} data, i.e. not in this testcase).
+In \tts{test}, \tts{prelink} changed \tts{.dynbss} to \tts{SHT\_PROGBITS}
+and kept \tts{SHT\_NOBITS} \tts{.bss}, while in slightly modified testcase
+(\tts{test2}) the size of \tts{.bss} was small enough that \tts{prelink}
+chose to make it \tts{SHT\_PROGBITS} too and grow the read-write
+\tts{PT\_LOAD} segment and put \tts{.dynstr} and \tts{.gnu.conflict}
+sections after it.
+
+\section{Prelink undo operation}
+
+Prelinking of shared libraries and executables is designed to be reversible,
+so that prelink operation followed by undo operation generates bitwise
+identical file to the original before prelinking.  For this operation
+\tts{prelink} stores the original \tts{ELF} header, all the program and
+all section headers into a \tts{.gnu.prelink\_undo} section before it starts prelinking
+an unprelinked executable or shared library.  When undoing the modifications,
+\tts{prelink} has to convert \tts{RELA} back to \tts{REL} first if \tts{REL}
+to \tts{RELA} conversion was done during prelinking and all allocated
+sections above it relocated down to adjust for the section shrink.
+Relocation types which were changed when trying to avoid \tts{REL} to
+\tts{RELA} conversion need to be changed back (e.g. on IA-32, it is
+assumed \tts{R\_386\_GLOB\_DAT} relocations should be only those
+against \tts{.got} section and \tts{R\_386\_32} relocations in the
+remaining places).  On \tts{RELA} architectures, the memory pointed
+by \tts{r\_offset} field of the relocations needs to be reinitialized
+to the values stored there by the linker originally.
+For \tts{prelink} it doesn't matter much what this value is (e.g.
+always 0, copy of \tts{r\_addend}, etc.), as long as it is computable
+from the information \tts{prelink} has during undo operation
+\footnote{Such as relocation type, \tts{r\_addend} value,
+type, binding, flags or other attributes of relocation's symbol,
+what section the relocation points into or the offset within
+section it points to.}.  The GNU linker had to be changed on several
+architectures, so that it stores there such a value, as in several places
+the value e.g. depended on original addend before final link (which is
+not available anywhere after final link time, since \tts{r\_addend}
+field could be adjusted during the final link).
+If second word of \tts{.got} section has been modified, it needs
+to be reverted back to the original value (on most architectures zero).
+In executables, sections which were moved during prelinking need to be
+put back and segments added while prelinking must be removed.
+
+There are 3 different ways how an undo operation can be performed:
+\begin{itemize}
+\item Undoing individual executables or shared libraries specified on the
+command line in place (i.e. when the undo operation is successful,
+the prelinked executable or library is atomically replaced with the
+undone object).
+\item With \tts{-o} option, only a single executable or shared library
+given on the command line is undone and stored to the file specified
+as \tts{-o} option's argument.
+\item With \tts{-ua} options, \tts{prelink} builds a list of executables
+in paths written in its config file (plus directories and executables
+or libraries from command line) and all shared libraries these executables
+depend on.  All executables and libraries in the list are then unprelinked.
+This option is used to unprelink the whole system.  It is not perfect
+and needs to be worked on, since e.g. if some executable uses some shared
+library which no other executable links against, this executable (and shared
+library) is prelinked, then the executable is removed (e.g. uninstalled)
+but the shared library is kept, then the shared library is not
+unprelinked unless specifically mentioned on the command line.
+\end{itemize}
+
+\section{Verification of prelinked files}
+
+As \tts{prelink} needs to modify executables and shared libraries installed
+on a system, it complicates system integrity verification (e.g. \tts{rpm -V},
+TripWire).  These systems store checksums of installed files into some
+database and during verification compute them again and compare to the
+values stored in the database.  On a prelinked system most of the executables
+and shared libraries would be reported as modified.  \tts{Prelink} offers
+a special mode for these systems, in which it verifies that unprelinking
+the executable or shared library followed by immediate prelinking (with the
+same base address) creates bitwise identical output with the executable
+or shared library that's being verified.  Furthermore, depending on
+other \tts{prelink} options, it either writes the unprelinked image
+to its standard output or computes MD5 or SHA1 digest from this unprelinked
+image.  Mere undo operation to a file and checksumming it is not good
+enough, since an intruder could have modified e.g. conflict fixups or
+memory which relocations point at, changing a behavior of the program
+while file after unprelinking would be unmodified.
+
+During verification, both \tts{prelink} executable and the dynamic linker
+are used, so a proper system integrity verification first checks whether
+\tts{prelink} executable (which is statically linked for this reason) hasn't
+been modified, then uses \tts{prelink --verify} to verify the dynamic linker
+(when verificating \tts{ld.so} the dynamic linker is not executed)
+followed by verification of other executables and libraries.
+
+Verification requires all dependencies of checked object to be unmodified
+since last prelinking.  If some dependency has been changed or is missing,
+\tts{prelink} will report it and return with non-zero exit status.
+This is because prelinking depends on their content and so if they are
+modified, the executable or shared library might be different to one after
+unprelinking followed by prelinking again.  In the future, perhaps it
+would be possible to even verify executables or shared libraries without
+unmodified dependencies, under the assumption that in such case the prelink
+information will not be used.  It would just need to verify that nothing
+else but the information only used when dependencies are up to date
+has changed between the executable or library on the filesystem and file
+after unprelink followed by prelink cycle.  The prelink operation
+would need to be modified in this case, so that no information is
+collected from the dynamic linker, the list of dependencies is assumed
+to be the one stored in the executable and expect it to have identical
+number of conflict fixups.
+
+\section{Measurements}
+
+There are two areas where \tts{prelink} can speed things up noticeably.
+The primary is certainly startup time of big GUI applications where the
+dynamic linker spends from 100ms up to a few seconds before giving control
+to the application.  Another area is when lots of small programs are started
+up, but their execution time is rather short, so the startup time which
+\tts{prelink} optimizes is a noticeable fraction of the total time.
+This is typical for shell scripting.
+
+First numbers are from \tts{lmbench} benchmark, version 3.0-a3.
+Most of the benchmarks in \tts{lmbench} suite measure kernel speed,
+so it doesn't matter much whether \tts{prelink} is used or not.
+Only in \tts{lat\_proc} benchmark \tts{prelink} shows up visibly.
+This benchmark measures 3 different things:
+\begin{itemize}
+\item {\sl fork proc}, which is \tts{fork()} followed by immediate
+\tts{exit(1)} in the child and \tts{wait(0)} in the parent.  The results
+are (as expected) about the same between unprelinked and prelinked systems.
+\item {\sl exec proc}, i.e. \tts{fork()} followed by immediate
+\tts{close(1)} and \tts{execve()} of a simple hello world program (this
+program is compiled and linked during the benchmark into a temporary
+directory and is never prelinked).  The numbers are 160$\mu$s to 200$\mu$s
+better on prelinked systems, because there is no relocation processing needed
+initially in the dynamic linker and because all relative relocations
+in \tts{libc.so.6} can be skipped.
+\item {\sl sh proc}, i.e. \tts{fork()} followed by immediate \tts{close(1)}
+and \tts{execlp("/bin/sh", "sh", "-c", "/tmp/hello", 0)}.  Although
+the hello world program is not prelinked in this case either, the shell is,
+so out of the 900$\mu$s to 1000$\mu$s speedup less than 200$\mu$s can be
+accounted on the speed up of the hello world program as in {\sl exec proc}
+benchmark and the rest to the speedup of shell startup.
+\end{itemize}
+
+First 4 rows are from running the benchmark on a fully unprelinked system,
+the last 4 rows on the same system, but fully prelinked.
+
+\noindent{{\small\begin{verbatim}
+                 L M B E N C H  3 . 0   S U M M A R Y
+                 ------------------------------------
+                (Alpha software, do not distribute)
+
+Processor, Processes - times in microseconds - smaller is better
+-------------------------------------------------------------------------
+Host           OS  Mhz null null      open slct sig  sig  fork exec sh  
+                       call  I/O stat clos TCP  inst hndl proc proc proc
+---- ------------ ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
+pork Linux 2.4.22  651 0.53 0.97 6.20 8.10 41.2 1.44 4.30 276. 1497 5403
+pork Linux 2.4.22  651 0.53 0.95 6.14 7.91 37.8 1.43 4.34 274. 1486 5391
+pork Linux 2.4.22  651 0.56 0.94 6.18 8.09 43.4 1.41 4.30 251. 1507 5423
+pork Linux 2.4.22  651 0.53 0.94 6.12 8.09 41.0 1.43 4.40 256. 1497 5385
+pork Linux 2.4.22  651 0.56 0.94 5.79 7.58 39.1 1.41 4.30 271. 1319 4460
+pork Linux 2.4.22  651 0.56 0.92 5.76 7.40 38.9 1.41 4.30 253. 1304 4417
+pork Linux 2.4.22  651 0.56 0.95 6.20 7.83 37.7 1.41 4.37 248. 1323 4481
+pork Linux 2.4.22  651 0.56 1.01 6.04 7.77 37.9 1.43 4.32 256. 1324 4457
+\end{verbatim}}
+\prelinklistingcaption{\tts{lmbench} results without and with prelinking}}
+
+Below is a sample timing of a 239K long configure shell script from GCC
+on both unprelinked and prelinked system.  Preparation step was following:
+
+\noindent{{\small\begin{verbatim}
+cd; cvs -d :pserver:anoncvs@subversions.gnu.org:/cvsroot/gcc login
+# Empty password
+cvs -d :pserver:anoncvs@subversions.gnu.org:/cvsroot/gcc -z3 co -D20031103 gcc
+mkdir ~/gcc/obj
+cd ~/gcc/obj; ../configure i386-redhat-linux; make configure-gcc
+\end{verbatim}}
+\prelinklistingcaption{Preparation script for shell script tests}}
+
+On an unprelinked system, the results were:
+
+\noindent{{\small\begin{verbatim}
+cd ~/gcc/obj/gcc
+for i in 1 2; do ./config.status --recheck > /dev/null 2>&1; done
+for i in 1 2 3 4; do time ./config.status --recheck > /dev/null 2>&1; done
+
+real    0m4.436s
+user    0m1.730s
+sys     0m1.260s
+
+real    0m4.409s
+user    0m1.660s
+sys     0m1.340s
+
+real    0m4.431s
+user    0m1.810s
+sys     0m1.300s
+
+real    0m4.432s
+user    0m1.670s
+sys     0m1.210s
+\end{verbatim}}
+\prelinklistingcaption{Shell script test results on unprelinked system}}
+
+and on a fully prelinked system:
+
+\noindent{{\small\begin{verbatim}
+cd ~/gcc/obj/gcc
+for i in 1 2; do ./config.status --recheck > /dev/null 2>&1; done
+for i in 1 2 3 4; do time ./config.status --recheck > /dev/null 2>&1; done
+
+real    0m4.126s
+user    0m1.590s
+sys     0m1.240s
+
+real    0m4.151s
+user    0m1.620s
+sys     0m1.230s
+
+real    0m4.161s
+user    0m1.600s
+sys     0m1.190s
+
+real    0m4.122s
+user    0m1.570s
+sys     0m1.230s
+\end{verbatim}}
+\prelinklistingcaption{Shell script test results on prelinked system}}
+
+Now timing of a few big GUI programs.  All timings were done without X
+server running and with \tts{DISPLAY} environment variable not set
+(so that when control is transfered to the application, it very soon
+finds out there is no X server it can talk to and bail out).  The
+measurements are done by the dynamic linker in ticks on a 651MHz
+dual Pentium III machine, i.e. ticks have to be divided by 651000000
+to get times in seconds.  Each application has been run 4 times
+and the results with smallest total time spent in the dynamic
+linker was chosen.  Epiphany WWW browser and Evolution mail client
+were chosen as examples of \tts{Gtk+} applications (typically they use
+really many shared libraries, but many of them are quite small,
+there aren't really many relocations nor conflict fixups and most
+of the libraries are written in C) and Konqueror WWW browser and
+KWord word processor were chosen as examples of \tts{KDE} applications
+(typically they use slightly fewer shared libraries, though
+still a lot, most of the shared libraries are written in C++,
+have many relocations and cause many conflict fixups, especially
+without C++ conflict fixup optimizations in \tts{prelink}).
+On non-prelinked system, the timings are done with lazy binding,
+i.e. without \tts{LD\_BIND\_NOW=1} set in the environment.
+This is because that's how people generally run programs, on the other
+side it is not exact apples to apples comparison, since on prelinked
+system there is no lazy binding with the exception of shared libraries
+loaded through \tts{dlopen}.  So when control is passed to the application,
+prelinked programs should be slightly faster for a while since non-prelinked
+programs will have to do symbol lookups and processing relocations
+(and on various architectures flushing instruction caches) whenever
+they call some function they haven't called before in particular shared
+library or in the executable.
+
+\noindent{{\small\begin{verbatim}
+$ ldd `which epiphany-bin` | wc -l
+     64
+$ # Unprelinked system
+$ LD_DEBUG=statistics epiphany-bin 2>&1 | sed 's/^ *//'
+18960:
+18960:     runtime linker statistics:
+18960:       total startup time in dynamic loader: 67336593 clock cycles
+18960:                 time needed for relocation: 58119983 clock cycles (86.3%)
+18960:                      number of relocations: 6999
+18960:           number of relocations from cache: 4770
+18960:             number of relative relocations: 31494
+18960:                time needed to load objects: 8696104 clock cycles (12.9%)
+
+(epiphany-bin:18960): Gtk-WARNING **: cannot open display:
+18960:
+18960:     runtime linker statistics:
+18960:                final number of relocations: 7692
+18960:     final number of relocations from cache: 4770
+$ # Prelinked system
+$ LD_DEBUG=statistics epiphany-bin 2>&1 | sed 's/^ *//'
+25697:
+25697:  runtime linker statistics:
+25697:    total startup time in dynamic loader: 7313721 clock cycles
+25697:              time needed for relocation: 565680 clock cycles (7.7%)
+25697:                   number of relocations: 0
+25697:        number of relocations from cache: 1205
+25697:          number of relative relocations: 0
+25697:             time needed to load objects: 6179467 clock cycles (84.4%)
+
+(epiphany-bin:25697): Gtk-WARNING **: cannot open display:
+25697:
+25697:  runtime linker statistics:
+25697:             final number of relocations: 31
+25697:  final number of relocations from cache: 1205
+
+$ ldd `which evolution` | wc -l
+     68
+$ # Unprelinked system
+$ LD_DEBUG=statistics evolution 2>&1 | sed 's/^ *//'
+19042:
+19042:  runtime linker statistics:
+19042:    total startup time in dynamic loader: 54382122 clock cycles
+19042:              time needed for relocation: 43403190 clock cycles (79.8%)
+19042:                   number of relocations: 3452
+19042:        number of relocations from cache: 2885
+19042:          number of relative relocations: 34957
+19042:             time needed to load objects: 10450142 clock cycles (19.2%)
+
+(evolution:19042): Gtk-WARNING **: cannot open display:
+19042:
+19042:  runtime linker statistics:
+19042:             final number of relocations: 4075
+19042:  final number of relocations from cache: 2885
+$ # Prelinked system
+$ LD_DEBUG=statistics evolution 2>&1 | sed 's/^ *//'
+25723:
+25723:  runtime linker statistics:
+25723:    total startup time in dynamic loader: 9176140 clock cycles
+25723:              time needed for relocation: 203783 clock cycles (2.2%)
+25723:                   number of relocations: 0
+25723:        number of relocations from cache: 525
+25723:          number of relative relocations: 0
+25723:             time needed to load objects: 8405157 clock cycles (91.5%)
+
+(evolution:25723): Gtk-WARNING **: cannot open display:
+25723:
+25723:  runtime linker statistics:
+25723:             final number of relocations: 31
+25723:  final number of relocations from cache: 525
+
+$ ldd `which konqueror` | wc -l
+     37
+$ # Unprelinked system
+$ LD_DEBUG=statistics konqueror 2>&1 | sed 's/^ *//'
+18979:
+18979:  runtime linker statistics:
+18979:    total startup time in dynamic loader: 131985703 clock cycles
+18979:              time needed for relocation: 127341077 clock cycles (96.4%)
+18979:                   number of relocations: 25473
+18979:        number of relocations from cache: 53594
+18979:          number of relative relocations: 31171
+18979:             time needed to load objects: 4318803 clock cycles (3.2%)
+konqueror: cannot connect to X server
+18979:
+18979:  runtime linker statistics:
+18979:             final number of relocations: 25759
+18979:  final number of relocations from cache: 53594
+$ # Prelinked system
+$ LD_DEBUG=statistics konqueror 2>&1 | sed 's/^ *//'
+25733:
+25733:  runtime linker statistics:
+25733:    total startup time in dynamic loader: 5533696 clock cycles
+25733:              time needed for relocation: 1941489 clock cycles (35.0%)
+25733:                   number of relocations: 0
+25733:        number of relocations from cache: 2066
+25733:          number of relative relocations: 0
+25733:             time needed to load objects: 3217736 clock cycles (58.1%)
+konqueror: cannot connect to X server
+25733:
+25733:  runtime linker statistics:
+25733:             final number of relocations: 0
+25733:  final number of relocations from cache: 2066
+
+$ ldd `which kword` | wc -l
+     40
+$ # Unprelinked system
+$ LD_DEBUG=statistics kword 2>&1 | sed 's/^ *//'
+19065:
+19065:  runtime linker statistics:
+19065:    total startup time in dynamic loader: 153684591 clock cycles
+19065:              time needed for relocation: 148255294 clock cycles (96.4%)
+19065:                   number of relocations: 26231
+19065:        number of relocations from cache: 55833
+19065:          number of relative relocations: 30660
+19065:             time needed to load objects: 5068746 clock cycles (3.2%)
+kword: cannot connect to X server
+19065:
+19065:  runtime linker statistics:
+19065:             final number of relocations: 26528
+19065:  final number of relocations from cache: 55833
+$ # Prelinked system
+$ LD_DEBUG=statistics kword 2>&1 | sed 's/^ *//'
+25749:
+25749:  runtime linker statistics:
+25749:    total startup time in dynamic loader: 6516635 clock cycles
+25749:              time needed for relocation: 2106856 clock cycles (32.3%)
+25749:                   number of relocations: 0
+25749:        number of relocations from cache: 2130
+25749:          number of relative relocations: 0
+25749:             time needed to load objects: 4008585 clock cycles (61.5%)
+kword: cannot connect to X server
+25749:
+25749:  runtime linker statistics:
+25749:             final number of relocations: 0
+25749:  final number of relocations from cache: 2130
+\end{verbatim}}
+\prelinklistingcaption{Dynamic linker statistics for unprelinked and prelinked GUI programs}}
+
+In the case of above mentioned \tts{Gtk+} applications, the original startup
+time spent in the dynamic linker decreased into 11\% to 17\% of the original
+times, with \tts{KDE} applications it decreased even into around 4.2\% of original
+times.
+
+The startup time reported by the dynamic linker is only part of the total
+startup time of a GUI program.  Unfortunately it cannot be measured very
+accurately without patching each application separately, so that it would
+print current process CPU time at the point when all windows are painted and
+the process starts waiting for user input.  The following table contains
+values reported by \tts{time(1)} command on each of the 4 GUI programs
+running under X, both on unprelinked and fully prelinked system.
+As soon as each program painted its windows, it was killed by
+application's quit hot key
+\footnote{\tts{Ctrl+W} for Epiphany, \tts{Ctrl+Q} for Evolution and
+Konqueror and \tts{Enter} in Kword's document type choice dialog.}.
+Especially the \tts{real} time values depend also on the speed of
+human reactions, so each measurement was repeated 10 times.  All timings
+were done with hot caches, after running the applications two times
+before measurement.
+
+\noindent{\small\begin{center}
+\begin{longtable}{l|llllllllll|ll}
+{\bf Type} & \multicolumn{10}{l|}{\bf Values (in seconds)} & {\bf Average} & {\bf Std.Dev.} \\
+\hline
+\endhead
+& \multicolumn{10}{l|}{unprelinked epiphany} && \\
+\hline
+{real} & {3.053} & {2.84} & {2.996} & {2.901} & {3.019} & {2.929} & {2.883} & {2.975} & {2.922} & {3.026} & {2.954} & {0.0698} \\
+{user} & {2.33} & {2.31} & {2.28} & {2.32} & {2.44} & {2.37} & {2.29} & {2.35} & {2.34} & {2.41} & {2.344} & {0.0508} \\
+{sys} & {0.2} & {0.23} & {0.23} & {0.19} & {0.19} & {0.12} & {0.25} & {0.16} & {0.14} & {0.14} & {0.185} & {0.0440} \\
+\hline
+& \multicolumn{10}{l|}{prelinked epiphany} && \\
+\hline
+{real} & {2.773} & {2.743} & {2.833} & {2.753} & {2.753} & {2.644} & {2.717} & {2.897} & {2.68} & {2.761} & {2.755} & {0.0716} \\
+{user} & {2.18} & {2.17} & {2.17} & {2.12} & {2.23} & {2.26} & {2.13} & {2.17} & {2.15} & {2.15} & {2.173} & {0.0430} \\
+{sys} & {0.13} & {0.15} & {0.18} & {0.15} & {0.11} & {0.04} & {0.18} & {0.14} & {0.1} & {0.15} & {0.133} & {0.0416} \\
+\hline
+& \multicolumn{10}{l|}{unprelinked evolution} && \\
+\hline
+{real} & {2.106} & {1.886} & {1.828} & {2.12} & {1.867} & {1.871} & {2.242} & {1.871} & {1.862} & {2.241} & {1.989} & {0.1679} \\
+{user} & {1.12} & {1.09} & {1.15} & {1.19} & {1.17} & {1.23} & {1.15} & {1.11} & {1.17} & {1.14} & {1.152} & {0.0408} \\
+{sys} & {0.1} & {0.11} & {0.13} & {0.07} & {0.1} & {0.05} & {0.11} & {0.11} & {0.09} & {0.08} & {0.095} & {0.0232} \\
+\hline
+& \multicolumn{10}{l|}{prelinked evolution} && \\
+\hline
+{real} & {1.684} & {1.621} & {1.686} & {1.72} & {1.694} & {1.691} & {1.631} & {1.697} & {1.668} & {1.535} & {1.663} & {0.0541} \\
+{user} & {0.92} & {0.87} & {0.92} & {0.95} & {0.79} & {0.86} & {0.94} & {0.87} & {0.89} & {0.86} & {0.887} & {0.0476} \\
+{sys} & {0.06} & {0.1} & {0.06} & {0.05} & {0.11} & {0.08} & {0.07} & {0.1} & {0.12} & {0.07} & {0.082} & {0.0239} \\
+\hline
+& \multicolumn{10}{l|}{unprelinked kword} && \\
+\hline
+{real} & {2.111} & {1.414} & {1.36} & {1.356} & {1.259} & {1.383} & {1.28} & {1.321} & {1.252} & {1.407} & {1.414} & {0.2517} \\
+{user} & {1.04} & {0.9} & {0.93} & {0.88} & {0.89} & {0.89} & {0.87} & {0.89} & {0.9} & {0.8} & {0.899} & {0.0597} \\
+{sys} & {0.07} & {0.04} & {0.06} & {0.05} & {0.06} & {0.1} & {0.09} & {0.08} & {0.08} & {0.12} & {0.075} & {0.0242} \\
+\hline
+& \multicolumn{10}{l|}{prelinked kword} && \\
+\hline
+{real} & {1.59} & {1.052} & {0.972} & {1.064} & {1.106} & {1.087} & {1.066} & {1.087} & {1.065} & {1.005} & {1.109} & {0.1735} \\
+{user} & {0.61} & {0.53} & {0.58} & {0.6} & {0.6} & {0.58} & {0.59} & {0.61} & {0.57} & {0.6} & {0.587} & {0.0241} \\
+{sys} & {0.08} & {0.08} & {0.06} & {0.06} & {0.03} & {0.07} & {0.06} & {0.03} & {0.06} & {0.04} & {0.057} & {0.0183} \\
+\hline
+& \multicolumn{10}{l|}{unprelinked konqueror} && \\
+\hline
+{real} & {1.306} & {1.386} & {1.27} & {1.243} & {1.227} & {1.286} & {1.262} & {1.322} & {1.345} & {1.332} & {1.298} & {0.0495} \\
+{user} & {0.88} & {0.86} & {0.88} & {0.9} & {0.87} & {0.83} & {0.83} & {0.86} & {0.86} & {0.89} & {0.866} & {0.0232} \\
+{sys} & {0.07} & {0.11} & {0.12} & {0.1} & {0.12} & {0.08} & {0.13} & {0.12} & {0.09} & {0.08} & {0.102} & {0.0210} \\
+\hline
+& \multicolumn{10}{l|}{prelinked konqueror} && \\
+\hline
+{real} & {1.056} & {0.962} & {0.961} & {0.906} & {0.927} & {0.923} & {0.933} & {0.958} & {0.955} & {1.142} & {0.972} & {0.0722} \\
+{user} & {0.56} & {0.6} & {0.56} & {0.52} & {0.57} & {0.58} & {0.5} & {0.57} & {0.61} & {0.55} & {0.562} & {0.0334} \\
+{sys} & {0.1} & {0.13} & {0.08} & {0.15} & {0.07} & {0.09} & {0.09} & {0.09} & {0.1} & {0.08} & {0.098} & {0.0244} \\
+\hline
+\multicolumn{13}{l}{} \\
+\caption{GUI program start up times without and with prelinking} \\
+\end{longtable}
+\end{center}}
+
+\tts{OpenOffice.org} is probably the largest program these days in Linux,
+mostly written in C++.  In \tts{OpenOffice.org} 1.1, the main executable,
+\tts{soffice.bin}, links directly against 34 shared libraries, but typically
+during startup it loads using \tts{dlopen} many others.  As has been
+mentioned earlier, \tts{prelink} cannot speed up loading shared libraries
+using \tts{dlopen}, since it cannot predict in which order and what
+shared libraries will be loaded (and thus cannot compute conflict fixups).
+The \tts{soffice.bin} is typically started through a wrapper script
+and depending on what arguments are passed to it, different
+\tts{OpenOffice.org} application is started.  With no options, it starts
+just empty window with menu from which the applications can be started,
+with say \tts{private:factory/swriter} argument it starts
+a word processor, with \tts{private:factory/scalc} it starts a spreadsheet
+etc.  When \tts{soffice.bin} is already running, if you start another
+copy of it, it just instructs the already running copy to pop up a new
+window and exits.
+
+In an experiment, \tts{soffice.bin} has been invoked 7 times against running
+X server, with no arguments, \tts{private:factory/swriter},
+\tts{private:factory/scalc}, \tts{private:factory/sdraw},
+\tts{private:factory/simpress}, \tts{private:factory/smath} arguments
+(in all these cases nothing was pressed at all) and last with
+the \tts{private:factory/swriter} argument where the menu item \tts{New Presentation}
+was selected and the word processor window closed.
+In all these cases, \tts{/proc/`pidof soffice.bin`/maps} file was
+captured and the application then killed.  This file contains among
+other things list of all shared libraries mmapped by the process at
+the point where it started waiting for user input after loading up.
+These lists were then summarized, to get number of the runs in
+which particular shared library was loaded up out of the total 7
+runs.  There were 38 shared libraries shipped as part of \tts{OpenOffice.org}
+package which have been loaded in all 7 times, another 3 shared
+libraries included in \tts{OpenOffice.org} (and also one shared
+library shipped in another package, \tts{libdb\_cxx-4.1.so})
+which were loaded 6 times.
+\footnote{In all runs but when ran without
+arguments.  But when the application is started without any
+arguments, it cannot do any useful work, so one loads one of the
+applications afterward anyway.}  There was one shared library
+loaded in 5 runs, but was locale specific and thus not worth
+considering.  Inspecting \tts{OpenOffice.org} source, these shared
+libraries are never unloaded with \tts{dlclose}, so \tts{soffice.bin}
+can be made much more \tts{prelink} friendly and thus save substantial
+amount of startup time by linking against all those 76 shared libraries
+instead of just 34 shared libraries it is linked against.
+In the timings below, \tts{soffice1.bin} is the original \tts{soffice.bin}
+as created by the \tts{OpenOffice.org} makefiles and \tts{soffice3.bin} is
+the same executable linked dynamically against additional 42 shared libraries.
+The ordering of those 42 shared libraries matters for the number of conflict
+fixups, unfortunately with large C++ shared libraries there is no obvious rule
+for ordering them as sometimes it is more useful when a shared library precedes
+its dependency and sometimes vice versa, so a few different orderings were
+tried in several steps and always the one with smallest number of conflict
+fixups was chosen.  Still, the number of conflict fixups is quite high
+and big part of the fixups are storing addresses of \tts{PLT} slots in
+the executable into various places in shared libraries
+\footnote{This might get better when the linker is modified to handle
+calls without ever taking address of the function in executables specially,
+but only testing it will actually show it up.}
+\tts{soffice2.bin} is another experiment, where the executable itself is empty
+source file, all objects which were originally in \tts{soffice.bin}
+executable with the exception of start files were recompiled as position independent
+code and linked into a new shared library.  This reduced number of conflicts
+a lot and speeded up start up times against \tts{soffice3.bin} when caches
+are hot.  It is a little bit slower than \tts{soffice3.bin} when running
+with cold caches (e.g. for the first time after bootup), as there is one
+more shared library to load etc.
+
+In the timings below, numbers for \tts{soffice1.bin} and \tts{soffice2.bin}
+resp. \tts{soffice3.bin} cannot be easily compared, as \tts{soffice1.bin}
+loads less than half of the needed shared libraries which the remaining
+two executables load and the time to load those shared libraries doesn't
+show up there.  Still, when it is prelinked it takes just slightly more
+than two times longer to load \tts{soffice2.bin} than \tts{soffice1.bin}
+and the times are still less than 7\% of how long it takes to load
+just the initial 34 shared libraries when not prelinking.
+
+\noindent{{\small\begin{verbatim}
+$ S='s/^ *//'
+$ ldd /usr/lib/openoffice/program/soffice1.bin | wc -l
+     34
+$ # Unprelinked system
+$ LD_DEBUG=statistics /usr/lib/openoffice/program/soffice1.bin 2>&1 | sed "$S"
+19095:
+19095:  runtime linker statistics:
+19095:    total startup time in dynamic loader: 159833582 clock cycles
+19095:              time needed for relocation: 155464174 clock cycles (97.2%)
+19095:                   number of relocations: 31136
+19095:        number of relocations from cache: 31702
+19095:          number of relative relocations: 18284
+19095:             time needed to load objects: 3919645 clock cycles (2.4%)
+/usr/lib/openoffice/program/soffice1.bin X11 error: Can't open display:
+Set DISPLAY environment variable, use -display option
+or check permissions of your X-Server
+(See "man X" resp. "man xhost" for details)
+19095:
+19095:  runtime linker statistics:
+19095:             final number of relocations: 31715
+19095:  final number of relocations from cache: 31702
+$ # Prelinked system
+$ LD_DEBUG=statistics /usr/lib/openoffice/program/soffice1.bin 2>&1 | sed "$S"
+25759:
+25759:  runtime linker statistics:
+25759:    total startup time in dynamic loader: 4252397 clock cycles
+25759:              time needed for relocation: 1189840 clock cycles (27.9%)
+25759:                   number of relocations: 0
+25759:        number of relocations from cache: 2142
+25759:          number of relative relocations: 0
+25759:             time needed to load objects: 2604486 clock cycles (61.2%)
+/usr/lib/openoffice/program/soffice1.bin X11 error: Can't open display:
+Set DISPLAY environment variable, use -display option
+or check permissions of your X-Server
+(See "man X" resp. "man xhost" for details)
+25759:
+25759:  runtime linker statistics:
+25759:             final number of relocations: 24
+25759:  final number of relocations from cache: 2142
+$ ldd /usr/lib/openoffice/program/soffice2.bin | wc -l
+     77
+$ # Unprelinked system
+$ LD_DEBUG=statistics /usr/lib/openoffice/program/soffice2.bin 2>&1 | sed "$S"
+19115:
+19115:  runtime linker statistics:
+19115:    total startup time in dynamic loader: 947793670 clock cycles
+19115:              time needed for relocation: 936895741 clock cycles (98.8%)
+19115:                   number of relocations: 69164
+19115:        number of relocations from cache: 94502
+19115:          number of relative relocations: 59374
+19115:             time needed to load objects: 10046486 clock cycles (1.0%)
+/usr/lib/openoffice/program/soffice2.bin X11 error: Can't open display:
+Set DISPLAY environment variable, use -display option
+or check permissions of your X-Server
+(See "man X" resp. "man xhost" for details)
+19115:
+19115:  runtime linker statistics:
+19115:             final number of relocations: 69966
+19115:  final number of relocations from cache: 94502
+$ # Prelinked system
+$ LD_DEBUG=statistics /usr/lib/openoffice/program/soffice2.bin 2>&1 | sed "$S"
+25777:
+25777:  runtime linker statistics:
+25777:    total startup time in dynamic loader: 10952099 clock cycles
+25777:              time needed for relocation: 3254518 clock cycles (29.7%)
+25777:                   number of relocations: 0
+25777:        number of relocations from cache: 5309
+25777:          number of relative relocations: 0
+25777:             time needed to load objects: 6805013 clock cycles (62.1%)
+/usr/lib/openoffice/program/soffice2.bin X11 error: Can't open display:
+Set DISPLAY environment variable, use -display option
+or check permissions of your X-Server
+(See "man X" resp. "man xhost" for details)
+25777:
+25777:  runtime linker statistics:
+25777:             final number of relocations: 24
+25777:  final number of relocations from cache: 5309
+$ ldd /usr/lib/openoffice/program/soffice3.bin | wc -l
+     76
+$ # Unprelinked system
+$ LD_DEBUG=statistics /usr/lib/openoffice/program/soffice3.bin 2>&1 | sed "$S"
+19131:
+19131:  runtime linker statistics:
+19131:    total startup time in dynamic loader: 852275754 clock cycles
+19131:              time needed for relocation: 840996859 clock cycles (98.6%)
+19131:                   number of relocations: 68362
+19131:        number of relocations from cache: 89213
+19131:          number of relative relocations: 55831
+19131:             time needed to load objects: 10170207 clock cycles (1.1%)
+/usr/lib/openoffice/program/soffice3.bin X11 error: Can't open display:
+Set DISPLAY environment variable, use -display option
+or check permissions of your X-Server
+(See "man X" resp. "man xhost" for details)
+19131:
+19131:  runtime linker statistics:
+19131:             final number of relocations: 69177
+19131:  final number of relocations from cache: 89213
+$ # Prelinked system
+$ LD_DEBUG=statistics /usr/lib/openoffice/program/soffice3.bin 2>&1 | sed "$S"
+25847:
+25847:  runtime linker statistics:
+25847:    total startup time in dynamic loader: 12277407 clock cycles
+25847:              time needed for relocation: 4232915 clock cycles (34.4%)
+25847:                   number of relocations: 0
+25847:        number of relocations from cache: 8961
+25847:          number of relative relocations: 0
+25847:             time needed to load objects: 6925023 clock cycles (56.4%)
+/usr/lib/openoffice/program/soffice3.bin X11 error: Can't open display:
+Set DISPLAY environment variable, use -display option
+or check permissions of your X-Server
+(See "man X" resp. "man xhost" for details)
+25847:
+25847:  runtime linker statistics:
+25847:             final number of relocations: 24
+25847:  final number of relocations from cache: 8961
+\end{verbatim}}
+\prelinklistingcaption{Dynamic linker statistics for unprelinked and prelinked OpenOffice.org}}
+
+Below are measurement using \tts{time(1)} for each of the \tts{soffice.bin}
+variants, prelinked and unprelinked.  \tts{OpenOffice.org} was killed
+immediately after painting \tts{Writer}'s window using \tts{Ctrl+Q}.
+
+\noindent{\small\begin{center}
+\begin{longtable}{l|llllllllll|ll}
+{\bf Type} & \multicolumn{10}{l|}{\bf Values (in seconds)} & {\bf Average} & {\bf Std.Dev.} \\
+\hline
+\endhead
+& \multicolumn{10}{l|}{unprelinked soffice1.bin private:factory/swriter} && \\
+\hline
+{real} & {5.569} & {5.149} & {5.547} & {5.559} & {5.549} & {5.139} & {5.55} & {5.559} & {5.598} & {5.559} & {5.478} & {0.1765} \\
+{user} & {4.65} & {4.57} & {4.62} & {4.64} & {4.57} & {4.55} & {4.65} & {4.49} & {4.52} & {4.46} & {4.572} & {0.0680} \\
+{sys} & {0.29} & {0.24} & {0.19} & {0.21} & {0.21} & {0.21} & {0.25} & {0.25} & {0.27} & {0.26} & {0.238} & {0.0319} \\
+\hline
+& \multicolumn{10}{l|}{prelinked soffice1.bin private:factory/swriter} && \\
+\hline
+{real} & {4.946} & {4.899} & {5.291} & {4.879} & {4.879} & {4.898} & {5.299} & {4.901} & {4.887} & {4.901} & {4.978} & {0.1681} \\
+{user} & {4.23} & {4.27} & {4.18} & {4.24} & {4.17} & {4.22} & {4.15} & {4.25} & {4.26} & {4.31} & {4.228} & {0.0494} \\
+{sys} & {0.22} & {0.22} & {0.24} & {0.26} & {0.3} & {0.26} & {0.29} & {0.17} & {0.21} & {0.23} & {0.24} & {0.0389} \\
+\hline
+& \multicolumn{10}{l|}{unprelinked soffice2.bin private:factory/swriter} && \\
+\hline
+{real} & {5.575} & {5.166} & {5.592} & {5.149} & {5.571} & {5.559} & {5.159} & {5.157} & {5.569} & {5.149} & {5.365} & {0.2201} \\
+{user} & {4.59} & {4.5} & {4.57} & {4.37} & {4.47} & {4.57} & {4.56} & {4.41} & {4.63} & {4.5} & {4.517} & {0.0826} \\
+{sys} & {0.24} & {0.24} & {0.21} & {0.34} & {0.27} & {0.19} & {0.19} & {0.27} & {0.19} & {0.29} & {0.243} & {0.0501} \\
+\hline
+& \multicolumn{10}{l|}{prelinked soffice2.bin private:factory/swriter} && \\
+\hline
+{real} & {3.69} & {3.66} & {3.658} & {3.661} & {3.639} & {3.638} & {3.649} & {3.659} & {3.65} & {3.659} & {3.656} & {0.0146} \\
+{user} & {2.93} & {2.88} & {2.88} & {2.9} & {2.84} & {2.63} & {2.89} & {2.85} & {2.77} & {2.83} & {2.84} & {0.0860} \\
+{sys} & {0.22} & {0.18} & {0.23} & {0.2} & {0.18} & {0.29} & {0.22} & {0.23} & {0.24} & {0.22} & {0.221} & {0.0318} \\
+\hline
+& \multicolumn{10}{l|}{unprelinked soffice3.bin private:factory/swriter} && \\
+\hline
+{real} & {5.031} & {5.02} & {5.009} & {5.028} & {5.019} & {5.019} & {5.019} & {5.052} & {5.426} & {5.029} & {5.065} & {0.1273} \\
+{user} & {4.31} & {4.35} & {4.34} & {4.3} & {4.38} & {4.29} & {4.45} & {4.37} & {4.38} & {4.44} & {4.361} & {0.0547} \\
+{sys} & {0.27} & {0.25} & {0.26} & {0.27} & {0.27} & {0.31} & {0.18} & {0.17} & {0.16} & {0.15} & {0.229} & {0.0576} \\
+\hline
+& \multicolumn{10}{l|}{prelinked soffice3.bin private:factory/swriter} && \\
+\hline
+{real} & {3.705} & {3.669} & {3.659} & {3.669} & {3.66} & {3.659} & {3.659} & {3.661} & {3.668} & {3.649} & {3.666} & {0.0151} \\
+{user} & {2.86} & {2.88} & {2.85} & {2.84} & {2.83} & {2.86} & {2.84} & {2.91} & {2.86} & {2.8} & {2.853} & {0.0295} \\
+{sys} & {0.26} & {0.19} & {0.27} & {0.25} & {0.24} & {0.23} & {0.28} & {0.21} & {0.21} & {0.27} & {0.241} & {0.0303} \\
+\hline
+\multicolumn{13}{l}{} \\
+\caption{OpenOffice.org start up times without and with prelinking} \\
+\end{longtable}
+\end{center}}
+
+\section{Similar tools on other ELF using Operating Systems}
+
+Something similar to \tts{prelink} is available on other \tts{ELF}
+platforms.  On Irix there is \tts{QUICKSTART} and on Solaris \tts{crle}.
+
+SGI \tts{QUICKSTART} is much closer to \tts{prelink} from these two.
+The \tts{rqs} program relocates libraries to (if possible) unique
+virtual address space slot.  The base address is either specified
+on the command line with the \tts{-l} option, or \tts{rqs} uses
+a \tts{so\_locations} registry with \tts{-c} or \tts{-u} options
+and finds a not yet occupied slot.  This is similar to how \tts{prelink}
+lays out libraries without the \tts{-m} option.
+
+\tts{QUICKSTART} uses the same data structure for library lists
+(\tts{ElfNN\_Lib}) as \tts{prelink}, but uses more fields in it
+(\tts{prelink} doesn't use \tts{l\_version} and \tts{l\_flags} fields at
+the moment) and uses different dynamic tags and section type for
+it.  Another difference is that \tts{QUICKSTART} makes all liblist
+section \tts{SHF\_ALLOC}, whether in shared libraries or executables.
+\tts{prelink} only needs liblist section in the executable be allocated,
+liblist sections in shared libraries are not allocated and used
+at \tts{prelink} time only.
+
+The biggest difference between \tts{QUICKSTART} and \tts{prelink}
+is in how conflicts are encoded.  SGI stores them in a very compact
+format, as array of \tts{.dynsym} section indexes for symbols which
+are conflicting.  There is no information publicly available
+what exactly SGI dynamic linker does when it is resolving the conflicts,
+so this is just a guess.  Given that the conflicts can be stored
+in a shared library or executable different to the shared library with the
+relocations against the conflicting symbol and different to the shared
+library which the symbol was originally resolved to, there doesn't seem
+to be an obvious way how to handle the conflicts very cheaply.
+The dynamic linker probably collects list of all conflicting symbol
+names, for each such symbol computes \tts{ELF} hash and walks hash buckets
+for this hash of all shared libraries, looking for the symbol.
+Every time it finds the symbol, all relocations against it need to be
+redone.  Unlike this, \tts{prelink} stores conflicts as an array of
+\tts{ElfNN\_Rela} structures, with one entry for each shared relocation
+against conflicting symbol in some shared library.  This guarantees
+that there are no symbol lookups during program startup (provided
+that shared libraries have not been changed after prelinking), while
+with \tts{QUICKSTART} will do some symbol lookups if there are any
+conflicts.  \tts{QUICKSTART} puts conflict sections into the executable
+and every shared library where \tts{rqs} determines conflicts while
+\tts{prelink} stores them in the executable only (but the array is typically
+much bigger).  Disk space requirements for prelinked executables are certainly
+bigger than for requickstarted executables, but which one has bigger runtime
+memory requirements is unclear.  If prelinking can be used, all \tts{.rela*}
+and \tts{.rel*} sections in the executable and all shared libraries are skipped,
+so they will not need to be paged in during whole program's life (with the
+exception of first and last pages in the relocation sections which can be
+paged in because of other sections on the same page), but whole
+\tts{.gnu.conflict} section needs to be paged in (read-only) and processed.
+With \tts{QUICKSTART}, probably all (much smaller) conflict sections need
+to be paged in and also likely for each conflict whole relocation sections
+of each library which needs the conflict to be applied against.
+
+In \tts{QUICKSTART} documentation, SGI says that conflicts are very costly
+and that developers should avoid them.  Unfortunately, this is sometimes quite
+hard, especially with C++ shared libraries.  It is unclear whether \tts{rqs}
+does any optimizations to trim down the number of conflicts.
+
+Sun took completely different approach.  The dynamic linker provides a
+\tts{dldump (const char *ipath, const char *opath, int flags);} function.
+{\sl ipath} is supposed to be a path to an \tts{ELF} object loaded already in
+the current process.  This function creates a new \tts{ELF} object at
+{\sl opath}, which is like the {\sl ipath} object, but relocated to the
+base address which it has actually been mapped at in the current process
+and with some relocations (specified in {\sl flags} bitmask) applied as
+they have been resolved in the current process.  Relocations, which have
+been applied, are overwritten in the relocation sections with
+\tts{R\_*\_NONE} relocations.  The \tts{crle} executable, in addition to other
+functions not related to startup times, with some specific options uses the
+\tts{dldump} function to dump all shared libraries a particular executable
+uses (and the executable itself) into a new directory, with selected
+relocation classes being already applied.  The main disadvantage of this
+approach is that such alternate shared libraries are at least for
+most relocation classes not shareable across different programs at all
+(and for those where they could be shareable a little bit there will
+be many relocations left for the dynamic linker, so the speed gains will
+be small).  Another disadvantage is that all relocation sections need to
+be paged into the memory, just to find out that most of the relocations
+are \tts{R\_*\_NONE}.
+
+\section{ELF extensions for prelink}
+
+\tts{Prelink} needs a few \tts{ELF} extensions for its data structures
+in \tts{ELF} objects.  For list of dependencies at the time of prelinking,
+a new section type \tts{SHT\_GNU\_LIBLIST} is defined:
+
+\noindent{{\small\begin{verbatim}
+#define SHT_GNU_LIBLIST   0x6ffffff7  /* Prelink library list */
+
+typedef struct
+{
+  Elf32_Word l_name;            /* Name (string table index) */
+  Elf32_Word l_time_stamp;      /* Timestamp */
+  Elf32_Word l_checksum;        /* Checksum */
+  Elf32_Word l_version;         /* Unused, should be zero */
+  Elf32_Word l_flags;           /* Unused, should be zero */
+} Elf32_Lib;
+
+typedef struct
+{
+  Elf64_Word l_name;            /* Name (string table index) */
+  Elf64_Word l_time_stamp;      /* Timestamp */
+  Elf64_Word l_checksum;        /* Checksum */
+  Elf64_Word l_version;         /* Unused, should be zero */
+  Elf64_Word l_flags;           /* Unused, should be zero */
+} Elf64_Lib;
+\end{verbatim}}
+\prelinklistingcaption{New structures and section type constants used by \tts{prelink}}}
+
+Introduces a few new special sections:
+
+\noindent{\begin{center}
+\begin{longtable}{l|lc}
+{\bf Name} & {\bf Type} & {\bf Attributes} \\
+\hline
+& {\sl In shared libraries} & \\
+{.gnu.liblist} & {SHT\_GNU\_LIBLIST} & {0} \\
+{.gnu.libstr} & {SHT\_STRTAB} & {0} \\
+{.gnu.prelink\_undo} & {SHT\_PROGBITS} & {0} \\
+\hline
+& {\sl In executables} & \\
+{.gnu.liblist} & {SHT\_GNU\_LIBLIST} & {SHF\_ALLOC} \\
+{.gnu.conflict} & {SHT\_RELA} & {SHF\_ALLOC} \\
+{.gnu.prelink\_undo} & {SHT\_PROGBITS} & {0} \\
+\multicolumn{3}{l}{} \\
+\caption{Special sections introduced by \tts{prelink}} \\
+\end{longtable}
+\end{center}}
+
+\begin{description}
+\item[\tts{.gnu.liblist}] This section contains one \tts{ElfNN\_Lib} structure
+for each shared library which the object has been prelinked against,
+in the order in which they appear in symbol search scope.
+Section's \tts{sh\_link} value should contain section index of \tts{.gnu.libstr}
+for shared libraries and section index of \tts{.dynsym} for executables.
+\tts{l\_name} field contains the dependent library's name as index
+into the section pointed by\tts{sh\_link} field.  \tts{l\_time\_stamp}
+resp. \tts{l\_checksum} should contain copies of \tts{DT\_GNU\_PRELINKED}
+resp. \tts{DT\_CHECKSUM} values of the dependent library.
+
+\item[\tts{.gnu.conflict}] This section contains one \tts{ElfNN\_Rela}
+structure for each needed \tts{prelink} conflict fixup.  \tts{r\_offset}
+field contains the absolute address at which the fixup needs to be applied,
+\tts{r\_addend} the value that needs to be stored at that location.
+\tts{ELFNN\_R\_SYM} of \tts{r\_info} field should be zero,
+\tts{ELFNN\_R\_TYPE} of \tts{r\_info} field should be architecture
+specific relocation type which should be handled the same as
+for \tts{.rela.*} sections on the architecture.  For \tts{EM\_ALPHA} machine,
+all types with \tts{R\_ALPHA\_JMP\_SLOT} in lowest 8 bits of \tts{ELF64\_R\_TYPE}
+should be handled as \tts{R\_ALPHA\_JMP\_SLOT} relocation, the upper
+24 bits contains index in original \tts{.rela.plt} section of the
+\tts{R\_ALPHA\_JMP\_SLOT} relocation the fixup was created for.
+
+\item[\tts{.gnu.libstr}] This section contains strings for \tts{.gnu.liblist}
+section in shared libraries where \tts{.gnu.liblist} section is not
+allocated.
+
+\item[\tts{.gnu.prelink\_undo}] This section contains \tts{prelink} private
+data used for \tts{prelink --undo} operation.  This data includes the
+original \tts{ElfNN\_Ehdr} of the object before prelinking and all its
+original \tts{ElfNN\_Phdr} and \tts{ElfNN\_Shdr} headers.
+\end{description}
+
+\tts{Prelink} also defines 6 new dynamic tags:
+
+\noindent{{\small\begin{verbatim}
+#define DT_GNU_PRELINKED  0x6ffffdf5  /* Prelinking timestamp */
+#define DT_GNU_CONFLICTSZ 0x6ffffdf6  /* Size of conflict section */
+#define DT_GNU_LIBLISTSZ  0x6ffffdf7  /* Size of library list */
+#define DT_CHECKSUM       0x6ffffdf8  /* Library checksum */
+
+#define DT_GNU_CONFLICT   0x6ffffef8  /* Start of conflict section */
+#define DT_GNU_LIBLIST    0x6ffffef9  /* Library list */
+\end{verbatim}}
+\prelinklistingcaption{\tts{Prelink} dynamic tags}}
+
+\tts{DT\_GNU\_PRELINKED} and \tts{DT\_CHECKSUM} dynamic tags must
+be present in prelinked shared libraries.  The corresponding
+\tts{d\_un.d\_val} fields should contain time when the library
+has been prelinked (in seconds since January, 1st, 1970, 00:00 UTC)
+resp. \tts{CRC32} checksum of all sections with one of
+\tts{SHF\_ALLOC}, \tts{SHF\_WRITE} or \tts{SHF\_EXECINSTR} bit set
+whose type is not \tts{SHT\_NOBITS}, in the order they appear in the
+shared library's section header table, with \tts{DT\_GNU\_PRELINKED}
+and \tts{DT\_CHECKSUM} \tts{d\_un.v\_val} values set to 0 for
+the time of checksum computation.
+
+The \tts{DT\_GNU\_LIBLIST} and \tts{DT\_GNU\_LIBLISTSZ} dynamic tags
+must be present in all prelinked executables.  The \tts{d\_un.d\_ptr} value of
+the \tts{DT\_GNU\_LIBLIST} dynamic tag contains the virtual address
+of the \tts{.gnu.liblist} section in the executable and \tts{d\_un.d\_val}
+of \tts{DT\_GNU\_LIBLISTSZ} tag contains its size in bytes.
+
+\tts{DT\_GNU\_CONFLICT} and \tts{DT\_GNU\_CONFLICTSZ} dynamic tags
+may be present in prelinked executables.  \tts{d\_un.d\_ptr} of
+\tts{DT\_GNU\_CONFLICT} dynamic tag contains the virtual address
+of \tts{.gnu.conflict} section in the executable (if present)
+and \tts{d\_un.d\_val} of \tts{DT\_GNU\_CONFLICTSZ} tag contains
+its size in bytes.
+
+\begin{appendix}
+
+\section{Glossary}
+\printglossary
+
+\section{References}
+
+\begin{description}
+\item[\textrm{[1]}]
+\href{http://www.caldera.com/developers/devspecs/gabi41.pdf}%
+{\sl System V Application Binary Interface, Edition 4.1}.
+
+\item[\textrm{[2]}]
+\href{http://www.caldera.com/developers/devspecs/abi386-4.pdf}%
+{\sl System V Application Binary Interface, Intel 386 Architecture Processor
+Supplement}.
+
+\item[\textrm{[3]}]
+\href{http://www.x86-64.org/cgi-bin/cvsweb.cgi/x86-64-ABI/}%
+{\sl System V Application Binary Interface, AMD64 Architecture Processor
+Supplement}.
+
+\item[\textrm{[4]}]
+\href{http://refspecs.freestandards.org/elf/IA64-SysV-psABI.pdf}%
+{{\sl System V Application Binary Interface, Intel Itanium Architecture Processor
+Supplement}, Intel Corporation, 2001}.
+
+\item[\textrm{[5]}]
+\href{http://refspecs.freestandards.org/elf/elfspec_ppc.pdf}%
+{Steve Zucker, Kari Karhi, {\sl System V Application Binary Interface,
+PowerPC Architecture Processor Supplement}, SunSoft, IBM, 1995}.
+
+\item[\textrm{[6]}]
+\href{ftp://ftp.linuxppc64.org/pub/people/amodra/PPC-elf64abi.txt.gz}%
+{\sl System V Application Binary Interface, PowerPC64 Architecture Processor
+Supplement}.
+
+\item[\textrm{[7]}]
+\href{http://www.arm.com/support/566FHT/$File/ARMELF.pdf}%
+{\sl System V Application Binary Interface, ARM Architecture Processor
+Supplement}.
+
+\item[\textrm{[8]}]
+\href{http://www.sparc.com/standards/SCD.2.4.1.ps.Z}%
+{{\sl SPARC Compliance Definition, Version 2.4.1},
+SPARC International, Inc., 1999}.
+
+\item[\textrm{[9]}]
+\href{http://people.redhat.com/drepper/dsohowto.pdf}%
+{Ulrich Drepper, {\sl How To Write Shared Libraries}, Red Hat, Inc., 2003}.
+
+\item[\textrm{[10]}]
+\href{http://docs.sun.com/db/doc/816-1386}%
+{{\sl Linker And Library Guide}, Sun Microsystems, 2002}.
+
+\item[\textrm{[11]}]
+\href{http://www.gzlinux.org/docs/category/dev/c/linkerandloader.pdf}%
+{John R. Levine, {\sl Linkers and Loaders}, 1999}.
+
+\item[\textrm{[12]}]
+\href{http://people.redhat.com/drepper/tls.pdf}%
+{Ulrich Drepper, {\sl ELF Handling For Thread-Local Storage}, Red Hat, Inc.,
+2003}.
+
+\item[\textrm{[13]}]
+\href{ftp://ftp.linuxppc64.org/pub/people/amodra/ppc32tls.txt.gz}%
+{Alan Modra, {\sl PowerPC Specific Thread Local Storage ABI}, 2003}.
+
+\item[\textrm{[14]}]
+\href{ftp://ftp.linuxppc64.org/pub/people/amodra/ppc64tls.txt.gz}%
+{Alan Modra, {\sl PowerPC64 Specific Thread Local Storage ABI}, 2003}.
+
+\item[\textrm{[15]}]
+\href{http://www.eagercon.com/dwarf/dwarf-2.0.0.pdf}%
+{\sl DWARF Debugging Information Format Version 2}.
+
+\item[\textrm{[16]}]
+\href{http://reality.sgiweb.org/davea/dwarf3-draft8-011125.pdf}%
+{{\sl DWARF Debugging Information Format Version 3}, Draft, 2001}.
+
+\item[\textrm{[17]}]
+\href{http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/gdb/doc/stabs.texinfo?cvsroot=src}%
+{\sl The "stabs" debugging information format}.
+\end{description}
+
+
+\section{Revision History}
+
+\begin{description}
+\item[2003-11-03] First draft.
+
+
+\end{description}
+
+\end{appendix}
+
+\end{document}
diff --git a/doc/prelinklisting.sty b/doc/prelinklisting.sty
new file mode 100644 (file)
index 0000000..f0aff06
--- /dev/null
@@ -0,0 +1,41 @@
+\NeedsTeXFormat{LaTeX2e}[2003/12/06]
+\ProvidesPackage{prelinklisting}[]
+\newcounter{prelinklisting}
+\renewcommand\theprelinklisting{\@arabic\c@prelinklisting}
+\newcommand\prelinklistingname{Listing}
+\newcommand\listprelinklistingname{List of Listings}
+\def\fps@prelinklisting{tbp}
+\def\ftype@prelinklisting{5}
+\def\ext@prelinklisting{lol}
+\def\fnum@prelinklisting{\prelinklistingname~\theprelinklisting}
+\newcommand\listofprelinklistings{%
+\begingroup
+\csname lol@parskip\endcsname
+\@ifundefined{chapter}{\section}{\chapter}*{\listprelinklistingname
+      \@mkboth{\MakeUppercase\listprelinklistingname}%
+              {\MakeUppercase\listprelinklistingname}}%
+    \@starttoc{\ext@prelinklisting}%
+\endgroup
+    }
+\newcommand*\l@prelinklisting{\@dottedtocline{1}{1.5em}{2.3em}}
+\def\JJ@caption{%
+    \bgroup
+    \@ifnextchar[{\egroup\JJ@c@ption\@firstofone}\JJ@capti@n}
+\def\JJ@capti@n{%
+  \@ifstar
+    {\egroup\JJ@c@ption\@gobble[]}%
+    {\egroup\@xdblarg{\JJ@c@ption\@firstofone}}}
+\def\JJ@c@ption#1[#2]#3{%
+  \JJ@makecaption#1\fnum@prelinklisting{#3}%
+  \def\@tempa{#2}%
+  \ifx\@tempa\@empty\else
+     {\let\\\space
+      \hyperdef{prelinklisting}{\theprelinklisting}{}
+      \let\theHprelinklisting\theprelinklisting
+      \hyper@makecurrent{prelinklisting}
+      \addcontentsline{lol}{prelinklisting}{\protect\numberline{\theprelinklisting}{#2}}%
+      \addtocounter{prelinklisting}{1}}%
+  \fi}
+\def\JJ@makecaption#1#2#3{{#1{#2: }#3\endgraf\vskip\baselineskip}}
+\let\prelinklistingcaption\JJ@caption
+\endinput
diff --git a/gelf/Makefile.am b/gelf/Makefile.am
new file mode 100644 (file)
index 0000000..f6320fa
--- /dev/null
@@ -0,0 +1,13 @@
+## Process this file with automake to create Makefile.in
+
+AUTOMAKE_OPTIONS = 1.4 gnu
+
+DEFS = -D_GNU_SOURCE -DHAVE_CONFIG_H -Wall
+AM_CFLAGS = -Wall
+INCLUDES = @GELFINCLUDE@
+
+noinst_LTLIBRARIES = libgelf.la
+
+libgelf_la_SOURCES = gelf.c
+
+noinst_HEADERS = gelf.h
diff --git a/gelf/Makefile.in b/gelf/Makefile.in
new file mode 100644 (file)
index 0000000..05f9925
--- /dev/null
@@ -0,0 +1,345 @@
+# Makefile.in generated by automake 1.6.3 from Makefile.am.
+# @configure_input@
+
+# Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
+# Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+SHELL = @SHELL@
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = @srcdir@
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+
+bindir = @bindir@
+sbindir = @sbindir@
+libexecdir = @libexecdir@
+datadir = @datadir@
+sysconfdir = @sysconfdir@
+sharedstatedir = @sharedstatedir@
+localstatedir = @localstatedir@
+libdir = @libdir@
+infodir = @infodir@
+mandir = @mandir@
+includedir = @includedir@
+oldincludedir = /usr/include
+pkgdatadir = $(datadir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+top_builddir = ..
+
+ACLOCAL = @ACLOCAL@
+AUTOCONF = @AUTOCONF@
+AUTOMAKE = @AUTOMAKE@
+AUTOHEADER = @AUTOHEADER@
+
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+INSTALL = @INSTALL@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_DATA = @INSTALL_DATA@
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = @program_transform_name@
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+host_alias = @host_alias@
+host_triplet = @host@
+
+EXEEXT = @EXEEXT@
+OBJEXT = @OBJEXT@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+AMTAR = @AMTAR@
+AR = @AR@
+AS = @AS@
+AWK = @AWK@
+CC = @CC@
+CPP = @CPP@
+CXX = @CXX@
+CXXCPP = @CXXCPP@
+DEPDIR = @DEPDIR@
+DLLTOOL = @DLLTOOL@
+ECHO = @ECHO@
+EGREP = @EGREP@
+F77 = @F77@
+GCJ = @GCJ@
+GCJFLAGS = @GCJFLAGS@
+GELFINCLUDE = @GELFINCLUDE@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LIBGELF = @LIBGELF@
+LIBTOOL = @LIBTOOL@
+LN_S = @LN_S@
+OBJDUMP = @OBJDUMP@
+PACKAGE = @PACKAGE@
+RANLIB = @RANLIB@
+RC = @RC@
+STRIP = @STRIP@
+VERSION = @VERSION@
+am__include = @am__include@
+am__quote = @am__quote@
+install_sh = @install_sh@
+
+AUTOMAKE_OPTIONS = 1.4 gnu
+
+DEFS = -D_GNU_SOURCE -DHAVE_CONFIG_H -Wall
+AM_CFLAGS = -Wall
+INCLUDES = @GELFINCLUDE@
+
+noinst_LTLIBRARIES = libgelf.la
+
+libgelf_la_SOURCES = gelf.c
+
+noinst_HEADERS = gelf.h
+subdir = gelf
+mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+LTLIBRARIES = $(noinst_LTLIBRARIES)
+
+libgelf_la_LDFLAGS =
+libgelf_la_LIBADD =
+am_libgelf_la_OBJECTS = gelf.lo
+libgelf_la_OBJECTS = $(am_libgelf_la_OBJECTS)
+DEFAULT_INCLUDES =  -I. -I$(srcdir) -I$(top_builddir)
+CPPFLAGS = @CPPFLAGS@
+LDFLAGS = @LDFLAGS@
+LIBS = @LIBS@
+depcomp = $(SHELL) $(top_srcdir)/depcomp
+am__depfiles_maybe = depfiles
+@AMDEP_TRUE@DEP_FILES = ./$(DEPDIR)/gelf.Plo
+COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
+       $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) \
+       $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+CCLD = $(CC)
+LINK = $(LIBTOOL) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+       $(AM_LDFLAGS) $(LDFLAGS) -o $@
+CFLAGS = @CFLAGS@
+DIST_SOURCES = $(libgelf_la_SOURCES)
+HEADERS = $(noinst_HEADERS)
+
+DIST_COMMON = $(noinst_HEADERS) Makefile.am Makefile.in
+SOURCES = $(libgelf_la_SOURCES)
+
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .c .lo .o .obj
+$(srcdir)/Makefile.in:  Makefile.am  $(top_srcdir)/configure.in $(ACLOCAL_M4)
+       cd $(top_srcdir) && \
+         $(AUTOMAKE) --gnu  gelf/Makefile
+Makefile:  $(srcdir)/Makefile.in  $(top_builddir)/config.status
+       cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)
+
+clean-noinstLTLIBRARIES:
+       -test -z "$(noinst_LTLIBRARIES)" || rm -f $(noinst_LTLIBRARIES)
+       @list='$(noinst_LTLIBRARIES)'; for p in $$list; do \
+         dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+         test -z "$dir" && dir=.; \
+         echo "rm -f \"$${dir}/so_locations\""; \
+         rm -f "$${dir}/so_locations"; \
+       done
+libgelf.la: $(libgelf_la_OBJECTS) $(libgelf_la_DEPENDENCIES) 
+       $(LINK)  $(libgelf_la_LDFLAGS) $(libgelf_la_OBJECTS) $(libgelf_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+       -rm -f *.$(OBJEXT) core *.core
+
+distclean-compile:
+       -rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/gelf.Plo@am__quote@
+
+distclean-depend:
+       -rm -rf ./$(DEPDIR)
+
+.c.o:
+@AMDEP_TRUE@   source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@   depfile='$(DEPDIR)/$*.Po' tmpdepfile='$(DEPDIR)/$*.TPo' @AMDEPBACKSLASH@
+@AMDEP_TRUE@   $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+       $(COMPILE) -c `test -f '$<' || echo '$(srcdir)/'`$<
+
+.c.obj:
+@AMDEP_TRUE@   source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@   depfile='$(DEPDIR)/$*.Po' tmpdepfile='$(DEPDIR)/$*.TPo' @AMDEPBACKSLASH@
+@AMDEP_TRUE@   $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+       $(COMPILE) -c `cygpath -w $<`
+
+.c.lo:
+@AMDEP_TRUE@   source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@   depfile='$(DEPDIR)/$*.Plo' tmpdepfile='$(DEPDIR)/$*.TPlo' @AMDEPBACKSLASH@
+@AMDEP_TRUE@   $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+       $(LTCOMPILE) -c -o $@ `test -f '$<' || echo '$(srcdir)/'`$<
+CCDEPMODE = @CCDEPMODE@
+
+mostlyclean-libtool:
+       -rm -f *.lo
+
+clean-libtool:
+       -rm -rf .libs _libs
+
+distclean-libtool:
+       -rm -f libtool
+uninstall-info-am:
+
+ETAGS = etags
+ETAGSFLAGS =
+
+tags: TAGS
+
+ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
+       list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+       unique=`for i in $$list; do \
+           if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+         done | \
+         $(AWK) '    { files[$$0] = 1; } \
+              END { for (i in files) print i; }'`; \
+       mkid -fID $$unique
+
+TAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+               $(TAGS_FILES) $(LISP)
+       tags=; \
+       here=`pwd`; \
+       list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+       unique=`for i in $$list; do \
+           if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+         done | \
+         $(AWK) '    { files[$$0] = 1; } \
+              END { for (i in files) print i; }'`; \
+       test -z "$(ETAGS_ARGS)$$tags$$unique" \
+         || $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+            $$tags $$unique
+
+GTAGS:
+       here=`$(am__cd) $(top_builddir) && pwd` \
+         && cd $(top_srcdir) \
+         && gtags -i $(GTAGS_ARGS) $$here
+
+distclean-tags:
+       -rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+
+top_distdir = ..
+distdir = $(top_distdir)/$(PACKAGE)-$(VERSION)
+
+distdir: $(DISTFILES)
+       @list='$(DISTFILES)'; for file in $$list; do \
+         if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+         dir=`echo "$$file" | sed -e 's,/[^/]*$$,,'`; \
+         if test "$$dir" != "$$file" && test "$$dir" != "."; then \
+           dir="/$$dir"; \
+           $(mkinstalldirs) "$(distdir)$$dir"; \
+         else \
+           dir=''; \
+         fi; \
+         if test -d $$d/$$file; then \
+           if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+             cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+           fi; \
+           cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+         else \
+           test -f $(distdir)/$$file \
+           || cp -p $$d/$$file $(distdir)/$$file \
+           || exit 1; \
+         fi; \
+       done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES) $(HEADERS)
+
+installdirs:
+
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+       @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+       $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+         INSTALL_STRIP_FLAG=-s \
+         `test -z '$(STRIP)' || \
+           echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+       -rm -f Makefile $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+       @echo "This command is intended for maintainers to use"
+       @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
+       mostlyclean-am
+
+distclean: distclean-am
+
+distclean-am: clean-am distclean-compile distclean-depend \
+       distclean-generic distclean-libtool distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-exec-am:
+
+install-info: install-info-am
+
+install-man:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+       mostlyclean-libtool
+
+uninstall-am: uninstall-info-am
+
+.PHONY: GTAGS all all-am check check-am clean clean-generic \
+       clean-libtool clean-noinstLTLIBRARIES distclean \
+       distclean-compile distclean-depend distclean-generic \
+       distclean-libtool distclean-tags distdir dvi dvi-am info \
+       info-am install install-am install-data install-data-am \
+       install-exec install-exec-am install-info install-info-am \
+       install-man install-strip installcheck installcheck-am \
+       installdirs maintainer-clean maintainer-clean-generic \
+       mostlyclean mostlyclean-compile mostlyclean-generic \
+       mostlyclean-libtool tags uninstall uninstall-am \
+       uninstall-info-am
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/gelf/gelf.c b/gelf/gelf.c
new file mode 100644 (file)
index 0000000..915cf5b
--- /dev/null
@@ -0,0 +1,573 @@
+/* Generic ELF wrapper for libelf which does not support gelf_ API.
+   Copyright (C) 2001, 2002, 2004 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <elf.h>
+#include <libelf.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include "gelf.h"
+
+inline int
+gelf_getclass (Elf *elf)
+{
+  size_t size;
+  char *e_ident = elf_getident (elf, &size);
+
+  if (e_ident == NULL)
+    return ELFCLASSNONE;
+  switch (e_ident [EI_CLASS])
+    {
+    case ELFCLASS32:
+    case ELFCLASS64:
+      return e_ident [EI_CLASS];
+    default:
+      return ELFCLASSNONE;
+    }
+}
+
+size_t
+gelf_fsize (Elf *elf, Elf_Type type, size_t count, unsigned int ver)
+{
+  switch (gelf_getclass (elf))
+    {
+    case ELFCLASS32:
+      return elf32_fsize (type, count, ver);
+    case ELFCLASS64:
+      return elf64_fsize (type, count, ver);
+    default:
+      return 0;
+    }
+}
+
+GElf_Ehdr *
+gelf_getehdr (Elf *elf, GElf_Ehdr *dst)
+{
+  Elf32_Ehdr *ehdr32;
+  Elf64_Ehdr *ehdr64;
+
+  switch (gelf_getclass (elf))
+    {
+    case ELFCLASS32:
+      ehdr32 = elf32_getehdr (elf);
+      if (ehdr32 != NULL)
+       {
+         memcpy (dst->e_ident, ehdr32->e_ident, EI_NIDENT);
+         dst->e_type = ehdr32->e_type;
+         dst->e_machine = ehdr32->e_machine;
+         dst->e_version = ehdr32->e_version;
+         dst->e_entry = ehdr32->e_entry;
+         dst->e_phoff = ehdr32->e_phoff;
+         dst->e_shoff = ehdr32->e_shoff;
+         dst->e_flags = ehdr32->e_flags;
+         dst->e_ehsize = ehdr32->e_ehsize;
+         dst->e_phentsize = ehdr32->e_phentsize;
+         dst->e_phnum = ehdr32->e_phnum;
+         dst->e_shentsize = ehdr32->e_shentsize;
+         dst->e_shnum = ehdr32->e_shnum;
+         dst->e_shstrndx = ehdr32->e_shstrndx;
+         return dst;
+       }
+      break;
+    case ELFCLASS64:
+      ehdr64 = elf64_getehdr (elf);
+      if (ehdr64 != NULL)
+       {
+         memcpy (dst, ehdr64, sizeof (Elf64_Ehdr));
+         return dst;
+       }
+    }
+  return NULL;
+}
+
+int
+gelf_update_ehdr (Elf *elf, GElf_Ehdr *src)
+{
+  Elf32_Ehdr *ehdr32;
+  Elf64_Ehdr *ehdr64;
+
+  switch (gelf_getclass (elf))
+    {
+    case ELFCLASS32:
+      ehdr32 = elf32_getehdr (elf);
+      if (ehdr32 == NULL)
+       return 0;
+      memcpy (ehdr32->e_ident, src->e_ident, EI_NIDENT);
+      ehdr32->e_type = src->e_type;
+      ehdr32->e_machine = src->e_machine;
+      ehdr32->e_version = src->e_version;
+      ehdr32->e_entry = src->e_entry;
+      ehdr32->e_phoff = src->e_phoff;
+      ehdr32->e_shoff = src->e_shoff;
+      ehdr32->e_flags = src->e_flags;
+      ehdr32->e_ehsize = src->e_ehsize;
+      ehdr32->e_phentsize = src->e_phentsize;
+      ehdr32->e_phnum = src->e_phnum;
+      ehdr32->e_shentsize = src->e_shentsize;
+      ehdr32->e_shnum = src->e_shnum;
+      ehdr32->e_shstrndx = src->e_shstrndx;
+      return 1;
+    case ELFCLASS64:
+      ehdr64 = elf64_getehdr (elf);
+      if (ehdr64 != NULL)
+       {
+         memcpy (ehdr64, src, sizeof (Elf64_Ehdr));
+         return 1;
+       }
+    default:
+      break;
+    }
+  return 0;
+}
+
+unsigned long
+gelf_newehdr (Elf *elf, int class)
+{
+  switch (class)
+    {
+    case ELFCLASS32:
+      return (unsigned long) elf32_newehdr (elf);
+    case ELFCLASS64:
+      return (unsigned long) elf64_newehdr (elf);
+    default:
+      return 0;
+    }
+}
+
+GElf_Phdr *
+gelf_getphdr (Elf *elf, int ndx, GElf_Phdr *dst)
+{
+  Elf32_Ehdr *ehdr32;
+  Elf64_Ehdr *ehdr64;
+  Elf32_Phdr *phdr32;
+  Elf64_Phdr *phdr64;
+
+  switch (gelf_getclass (elf))
+    {
+    case ELFCLASS32:
+      phdr32 = elf32_getphdr (elf);
+      if (phdr32 == NULL)
+       return NULL;
+      ehdr32 = elf32_getehdr (elf);
+      if (ehdr32 == NULL)
+       return NULL;
+      if (ndx >= ehdr32->e_phnum)
+       return NULL;
+      phdr32 += ndx;
+      dst->p_type = phdr32->p_type;
+      dst->p_offset = phdr32->p_offset;
+      dst->p_vaddr = phdr32->p_vaddr;
+      dst->p_paddr = phdr32->p_paddr;
+      dst->p_filesz = phdr32->p_filesz;
+      dst->p_memsz = phdr32->p_memsz;
+      dst->p_flags = phdr32->p_flags;
+      dst->p_align = phdr32->p_align;
+      return dst;
+    case ELFCLASS64:
+      phdr64 = elf64_getphdr (elf);
+      if (phdr64 == NULL)
+       return NULL;
+      ehdr64 = elf64_getehdr (elf);
+      if (ehdr64 == NULL)
+       return NULL;
+      if (ndx >= ehdr64->e_phnum)
+       return NULL;
+      memcpy (dst, phdr64 + ndx, sizeof (Elf64_Phdr));
+      return dst;
+    default:
+      return NULL;
+    }
+}
+
+int
+gelf_update_phdr (Elf *elf, int ndx, GElf_Phdr *src)
+{
+  Elf32_Ehdr *ehdr32;
+  Elf64_Ehdr *ehdr64;
+  Elf32_Phdr *phdr32;
+  Elf64_Phdr *phdr64;
+
+  switch (gelf_getclass (elf))
+    {
+    case ELFCLASS32:
+      phdr32 = elf32_getphdr (elf);
+      if (phdr32 == NULL)
+       return 0;
+      ehdr32 = elf32_getehdr (elf);
+      if (ehdr32 == NULL)
+       return 0;
+      if (ndx >= ehdr32->e_phnum)
+       return 0;
+      phdr32 += ndx;
+      phdr32->p_type = src->p_type;
+      phdr32->p_offset = src->p_offset;
+      phdr32->p_vaddr = src->p_vaddr;
+      phdr32->p_paddr = src->p_paddr;
+      phdr32->p_filesz = src->p_filesz;
+      phdr32->p_memsz = src->p_memsz;
+      phdr32->p_flags = src->p_flags;
+      phdr32->p_align = src->p_align;
+      return 1;
+    case ELFCLASS64:
+      phdr64 = elf64_getphdr (elf);
+      if (phdr64 == NULL)
+       return 0;
+      ehdr64 = elf64_getehdr (elf);
+      if (ehdr64 == NULL)
+       return 0;
+      if (ndx >= ehdr64->e_phnum)
+       return 0;
+      memcpy (phdr64 + ndx, src, sizeof (Elf64_Phdr));
+      return 1;
+    default:
+      return 0;
+    }
+}
+
+unsigned long
+gelf_newphdr (Elf *elf, size_t phnum)
+{
+  switch (gelf_getclass (elf))
+    {
+    case ELFCLASS32:
+      return (unsigned long) elf32_newphdr (elf, phnum);
+    case ELFCLASS64:
+      return (unsigned long) elf64_newphdr (elf, phnum);
+    default:
+      return 0;
+    }
+}
+
+GElf_Shdr *
+gelfx_getshdr (Elf *elf, Elf_Scn *scn, GElf_Shdr *dst)
+{
+  Elf32_Shdr *shdr32;
+  Elf64_Shdr *shdr64;
+
+  switch (gelf_getclass (elf))
+    {
+    case ELFCLASS32:
+      shdr32 = elf32_getshdr (scn);
+      if (shdr32 == NULL)
+       return NULL;
+      dst->sh_name = shdr32->sh_name;
+      dst->sh_type = shdr32->sh_type;
+      dst->sh_flags = shdr32->sh_flags;
+      dst->sh_addr = shdr32->sh_addr;
+      dst->sh_offset = shdr32->sh_offset;
+      dst->sh_size = shdr32->sh_size;
+      dst->sh_link = shdr32->sh_link;
+      dst->sh_info = shdr32->sh_info;
+      dst->sh_addralign = shdr32->sh_addralign;
+      dst->sh_entsize = shdr32->sh_entsize;
+      return dst;
+    case ELFCLASS64:
+      shdr64 = elf64_getshdr (scn);
+      if (shdr64 == NULL)
+       return NULL;
+      memcpy (dst, shdr64, sizeof (Elf64_Shdr));
+      return dst;
+    default:
+      return NULL;
+    }
+}
+
+int
+gelfx_update_shdr (Elf *elf, Elf_Scn *scn, GElf_Shdr *src)
+{
+  Elf32_Shdr *shdr32;
+  Elf64_Shdr *shdr64;
+
+  switch (gelf_getclass (elf))
+    {
+    case ELFCLASS32:
+      shdr32 = elf32_getshdr (scn);
+      if (shdr32 == NULL)
+       return 0;
+      shdr32->sh_name = src->sh_name;
+      shdr32->sh_type = src->sh_type;
+      shdr32->sh_flags = src->sh_flags;
+      shdr32->sh_addr = src->sh_addr;
+      shdr32->sh_offset = src->sh_offset;
+      shdr32->sh_size = src->sh_size;
+      shdr32->sh_link = src->sh_link;
+      shdr32->sh_info = src->sh_info;
+      shdr32->sh_addralign = src->sh_addralign;
+      shdr32->sh_entsize = src->sh_entsize;
+      return 1;
+    case ELFCLASS64:
+      shdr64 = elf64_getshdr (scn);
+      if (shdr64 == NULL)
+       return 0;
+      memcpy (shdr64, src, sizeof (Elf64_Shdr));
+      return 1;
+    default:
+      return 0;
+    }
+}
+
+Elf_Data *
+gelf_xlatetom (Elf *elf, Elf_Data *dst, const Elf_Data *src, unsigned encode)
+{
+  switch (gelf_getclass (elf))
+    {
+    case ELFCLASS32:
+      return elf32_xlatetom (dst, src, encode);
+    case ELFCLASS64:
+      return elf64_xlatetom (dst, src, encode);
+    default:
+      return NULL;
+    }
+}
+
+Elf_Data *
+gelf_xlatetof (Elf *elf, Elf_Data *dst, const Elf_Data *src, unsigned encode)
+{
+  switch (gelf_getclass (elf))
+    {
+    case ELFCLASS32:
+      return elf32_xlatetof (dst, src, encode);
+    case ELFCLASS64:
+      return elf64_xlatetof (dst, src, encode);
+    default:
+      return NULL;
+    }
+}
+
+GElf_Sym *gelfx_getsym (Elf *elf, Elf_Data *data, int ndx, GElf_Sym *dst)
+{
+  Elf32_Sym *sym32;
+
+  if (data->d_type != ELF_T_SYM)
+    return NULL;
+
+  switch (gelf_getclass (elf))
+    {
+    case ELFCLASS32:
+      if ((ndx + 1) * sizeof (Elf32_Sym) > data->d_size)
+       return NULL;
+      sym32 = &((Elf32_Sym *) data->d_buf)[ndx];
+      dst->st_name = sym32->st_name;
+      dst->st_info = sym32->st_info;
+      dst->st_other = sym32->st_other;
+      dst->st_shndx = sym32->st_shndx;
+      dst->st_value = sym32->st_value;
+      dst->st_size = sym32->st_size;
+      return dst;
+    case ELFCLASS64:
+      if ((ndx + 1) * sizeof (Elf64_Sym) > data->d_size)
+       return NULL;
+      *dst = ((GElf_Sym *) data->d_buf)[ndx];
+      return dst;
+    default:
+      return NULL;
+    }
+}
+
+int gelfx_update_sym (Elf *elf, Elf_Data *data, int ndx, GElf_Sym *src)
+{
+  Elf32_Sym *sym32;
+
+  if (data->d_type != ELF_T_SYM)
+    return 0;
+
+  switch (gelf_getclass (elf))
+    {
+    case ELFCLASS32:
+      if ((ndx + 1) * sizeof (Elf32_Sym) > data->d_size)
+       return 0;
+      sym32 = &((Elf32_Sym *) data->d_buf)[ndx];
+      sym32->st_name = src->st_name;
+      sym32->st_info = src->st_info;
+      sym32->st_other = src->st_other;
+      sym32->st_shndx = src->st_shndx;
+      sym32->st_value = src->st_value;
+      sym32->st_size = src->st_size;
+      return 1;
+    case ELFCLASS64:
+      if ((ndx + 1) * sizeof (Elf64_Sym) > data->d_size)
+       return 0;
+      ((GElf_Sym *) data->d_buf)[ndx] = *src;
+      return 1;
+    default:
+      return 0;
+    }
+}
+
+GElf_Dyn *gelfx_getdyn (Elf *elf, Elf_Data *data, int ndx, GElf_Dyn *dst)
+{
+  Elf32_Dyn *dyn32;
+
+  if (data->d_type != ELF_T_DYN)
+    return NULL;
+
+  switch (gelf_getclass (elf))
+    {
+    case ELFCLASS32:
+      if ((ndx + 1) * sizeof (Elf32_Dyn) > data->d_size)
+       return NULL;
+      dyn32 = &((Elf32_Dyn *) data->d_buf)[ndx];
+      dst->d_tag = dyn32->d_tag;
+      dst->d_un.d_val = dyn32->d_un.d_val;
+      return dst;
+    case ELFCLASS64:
+      if ((ndx + 1) * sizeof (Elf64_Dyn) > data->d_size)
+       return NULL;
+      *dst = ((GElf_Dyn *) data->d_buf)[ndx];
+      return dst;
+    default:
+      return NULL;
+    }
+}
+
+int gelfx_update_dyn (Elf *elf, Elf_Data *data, int ndx, GElf_Dyn *src)
+{
+  Elf32_Dyn *dyn32;
+
+  if (data->d_type != ELF_T_DYN)
+    return 0;
+
+  switch (gelf_getclass (elf))
+    {
+    case ELFCLASS32:
+      if ((ndx + 1) * sizeof (Elf32_Dyn) > data->d_size)
+       return 0;
+      dyn32 = &((Elf32_Dyn *) data->d_buf)[ndx];
+      dyn32->d_tag = src->d_tag;
+      dyn32->d_un.d_val = src->d_un.d_val;
+      return 1;
+    case ELFCLASS64:
+      if ((ndx + 1) * sizeof (Elf64_Dyn) > data->d_size)
+       return 0;
+      ((GElf_Dyn *) data->d_buf)[ndx] = *src;
+      return 1;
+    default:
+      return 0;
+    }
+}
+
+GElf_Rel *gelfx_getrel (Elf *elf, Elf_Data *data, int ndx, GElf_Rel *dst)
+{
+  Elf32_Rel *rel32;
+
+  if (data->d_type != ELF_T_REL)
+    return NULL;
+
+  switch (gelf_getclass (elf))
+    {
+    case ELFCLASS32:
+      if ((ndx + 1) * sizeof (Elf32_Rel) > data->d_size)
+       return NULL;
+      rel32 = &((Elf32_Rel *) data->d_buf)[ndx];
+      dst->r_offset = rel32->r_offset;
+      dst->r_info = GELF_R_INFO (ELF32_R_SYM (rel32->r_info),
+                                ELF32_R_TYPE (rel32->r_info));
+      return dst;
+    case ELFCLASS64:
+      if ((ndx + 1) * sizeof (Elf64_Rel) > data->d_size)
+       return NULL;
+      *dst = ((GElf_Rel *) data->d_buf)[ndx];
+      return dst;
+    default:
+      return NULL;
+    }
+}
+
+int gelfx_update_rel (Elf *elf, Elf_Data *data, int ndx, GElf_Rel *src)
+{
+  Elf32_Rel *rel32;
+
+  if (data->d_type != ELF_T_REL)
+    return 0;
+
+  switch (gelf_getclass (elf))
+    {
+    case ELFCLASS32:
+      if ((ndx + 1) * sizeof (Elf32_Rel) > data->d_size)
+       return 0;
+      rel32 = &((Elf32_Rel *) data->d_buf)[ndx];
+      rel32->r_offset = src->r_offset;
+      rel32->r_info = ELF32_R_INFO (GELF_R_SYM (src->r_info),
+                                    GELF_R_TYPE (src->r_info));
+      return 1;
+    case ELFCLASS64:
+      if ((ndx + 1) * sizeof (Elf64_Rel) > data->d_size)
+       return 0;
+      ((GElf_Rel *) data->d_buf)[ndx] = *src;
+      return 1;
+    default:
+      return 0;
+    }
+}
+
+GElf_Rela *gelfx_getrela (Elf *elf, Elf_Data *data, int ndx, GElf_Rela *dst)
+{
+  Elf32_Rela *rela32;
+
+  if (data->d_type != ELF_T_RELA)
+    return NULL;
+
+  switch (gelf_getclass (elf))
+    {
+    case ELFCLASS32:
+      if ((ndx + 1) * sizeof (Elf32_Rela) > data->d_size)
+       return NULL;
+      rela32 = &((Elf32_Rela *) data->d_buf)[ndx];
+      dst->r_offset = rela32->r_offset;
+      dst->r_info = GELF_R_INFO (ELF32_R_SYM (rela32->r_info),
+                                ELF32_R_TYPE (rela32->r_info));
+      dst->r_addend = rela32->r_addend;
+      return dst;
+    case ELFCLASS64:
+      if ((ndx + 1) * sizeof (Elf64_Rela) > data->d_size)
+       return NULL;
+      *dst = ((GElf_Rela *) data->d_buf)[ndx];
+      return dst;
+    default:
+      return NULL;
+    }
+}
+
+int gelfx_update_rela (Elf *elf, Elf_Data *data, int ndx, GElf_Rela *src)
+{
+  Elf32_Rela *rela32;
+
+  if (data->d_type != ELF_T_RELA)
+    return 0;
+
+  switch (gelf_getclass (elf))
+    {
+    case ELFCLASS32:
+      if ((ndx + 1) * sizeof (Elf32_Rela) > data->d_size)
+       return 0;
+      rela32 = &((Elf32_Rela *) data->d_buf)[ndx];
+      rela32->r_offset = src->r_offset;
+      rela32->r_info = ELF32_R_INFO (GELF_R_SYM (src->r_info),
+                                    GELF_R_TYPE (src->r_info));
+      rela32->r_addend = src->r_addend;
+      return 1;
+    case ELFCLASS64:
+      if ((ndx + 1) * sizeof (Elf64_Rela) > data->d_size)
+       return 0;
+      ((GElf_Rela *) data->d_buf)[ndx] = *src;
+      return 1;
+    default:
+      return 0;
+    }
+}
diff --git a/gelf/gelf.h b/gelf/gelf.h
new file mode 100644 (file)
index 0000000..6b76a15
--- /dev/null
@@ -0,0 +1,72 @@
+/* Generic ELF wrapper for libelf which does not support gelf_ API.
+   Copyright (C) 2001 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifndef GELF_H
+#define        GELF_H
+
+typedef Elf64_Half     GElf_Half;
+typedef Elf64_Word     GElf_Word;
+typedef        Elf64_Sword     GElf_Sword;
+typedef Elf64_Xword    GElf_Xword;
+typedef        Elf64_Sxword    GElf_Sxword;
+typedef Elf64_Addr     GElf_Addr;
+typedef Elf64_Off      GElf_Off;
+typedef Elf64_Ehdr     GElf_Ehdr;
+typedef Elf64_Shdr     GElf_Shdr;
+typedef Elf64_Section  GElf_Section;
+typedef Elf64_Sym      GElf_Sym;
+typedef Elf64_Rel      GElf_Rel;
+typedef Elf64_Rela     GElf_Rela;
+typedef Elf64_Phdr     GElf_Phdr;
+typedef Elf64_Dyn      GElf_Dyn;
+#define GELF_ST_BIND   ELF64_ST_BIND
+#define GELF_ST_TYPE   ELF64_ST_TYPE
+#define GELF_ST_INFO   ELF64_ST_INFO
+#define GELF_ST_VISIBILITY ELF64_ST_VISIBILITY
+#define GELF_R_SYM     ELF64_R_SYM
+#define GELF_R_TYPE    ELF64_R_TYPE
+#define GELF_R_INFO    ELF64_R_INFO
+
+extern int gelf_getclass (Elf *);
+extern size_t gelf_fsize (Elf *, Elf_Type, size_t, unsigned);
+extern GElf_Ehdr *gelf_getehdr (Elf *, GElf_Ehdr *);
+extern int gelf_update_ehdr (Elf *, GElf_Ehdr *);
+extern unsigned long gelf_newehdr (Elf *, int);
+extern GElf_Phdr *gelf_getphdr (Elf *, int, GElf_Phdr *);
+extern int gelf_update_phdr (Elf *, int, GElf_Phdr *);
+extern unsigned long gelf_newphdr (Elf *, size_t);
+extern Elf_Data *gelf_xlatetom (Elf *, Elf_Data *, const Elf_Data *, unsigned);
+extern Elf_Data *gelf_xlatetof (Elf *, Elf_Data *, const Elf_Data *, unsigned);
+/* The gelf_ equivalents of these functions only provide Elf_Scn resp.
+   Elf_Data pointers, without changing the underlying libelf implementation
+   it is either impossible to get Elf * pointer from that or it requires
+   internal knowledge about the libelf implementation.  */
+extern GElf_Shdr *gelfx_getshdr (Elf *, Elf_Scn *, GElf_Shdr *);
+extern int gelfx_update_shdr (Elf *, Elf_Scn *, GElf_Shdr *);
+extern GElf_Sym *gelfx_getsym (Elf *, Elf_Data *, int, GElf_Sym *);
+extern int gelfx_update_sym (Elf *, Elf_Data *, int, GElf_Sym *);
+extern GElf_Dyn *gelfx_getdyn (Elf *, Elf_Data *, int, GElf_Dyn *);
+extern int gelfx_update_dyn (Elf *, Elf_Data *, int, GElf_Dyn *);
+extern GElf_Rel *gelfx_getrel (Elf *, Elf_Data *, int, GElf_Rel *);
+extern GElf_Rela *gelfx_getrela (Elf *, Elf_Data *, int, GElf_Rela *);
+extern int gelfx_update_rel (Elf *, Elf_Data *, int, GElf_Rel *);
+extern int gelfx_update_rela (Elf *, Elf_Data *, int, GElf_Rela *);
+
+#define HAVE_GELFX_GETSHDR 1
+
+#endif /* GELF_H */
diff --git a/gelfx/Makefile.am b/gelfx/Makefile.am
new file mode 100644 (file)
index 0000000..ae51b93
--- /dev/null
@@ -0,0 +1,5 @@
+## Process this file with automake to create Makefile.in
+
+AUTOMAKE_OPTIONS = 1.4 gnu
+
+noinst_HEADERS = gelfx.h
diff --git a/gelfx/Makefile.in b/gelfx/Makefile.in
new file mode 100644 (file)
index 0000000..692bbea
--- /dev/null
@@ -0,0 +1,268 @@
+# Makefile.in generated by automake 1.6.3 from Makefile.am.
+# @configure_input@
+
+# Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
+# Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+SHELL = @SHELL@
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = @srcdir@
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+
+bindir = @bindir@
+sbindir = @sbindir@
+libexecdir = @libexecdir@
+datadir = @datadir@
+sysconfdir = @sysconfdir@
+sharedstatedir = @sharedstatedir@
+localstatedir = @localstatedir@
+libdir = @libdir@
+infodir = @infodir@
+mandir = @mandir@
+includedir = @includedir@
+oldincludedir = /usr/include
+pkgdatadir = $(datadir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+top_builddir = ..
+
+ACLOCAL = @ACLOCAL@
+AUTOCONF = @AUTOCONF@
+AUTOMAKE = @AUTOMAKE@
+AUTOHEADER = @AUTOHEADER@
+
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+INSTALL = @INSTALL@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_DATA = @INSTALL_DATA@
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = @program_transform_name@
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+host_alias = @host_alias@
+host_triplet = @host@
+
+EXEEXT = @EXEEXT@
+OBJEXT = @OBJEXT@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+AMTAR = @AMTAR@
+AR = @AR@
+AS = @AS@
+AWK = @AWK@
+CC = @CC@
+CPP = @CPP@
+CXX = @CXX@
+CXXCPP = @CXXCPP@
+DEPDIR = @DEPDIR@
+DLLTOOL = @DLLTOOL@
+ECHO = @ECHO@
+EGREP = @EGREP@
+F77 = @F77@
+GCJ = @GCJ@
+GCJFLAGS = @GCJFLAGS@
+GELFINCLUDE = @GELFINCLUDE@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LIBGELF = @LIBGELF@
+LIBTOOL = @LIBTOOL@
+LN_S = @LN_S@
+OBJDUMP = @OBJDUMP@
+PACKAGE = @PACKAGE@
+RANLIB = @RANLIB@
+RC = @RC@
+STRIP = @STRIP@
+VERSION = @VERSION@
+am__include = @am__include@
+am__quote = @am__quote@
+install_sh = @install_sh@
+
+AUTOMAKE_OPTIONS = 1.4 gnu
+
+noinst_HEADERS = gelfx.h
+subdir = gelfx
+mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+DIST_SOURCES =
+HEADERS = $(noinst_HEADERS)
+
+DIST_COMMON = $(noinst_HEADERS) Makefile.am Makefile.in
+all: all-am
+
+.SUFFIXES:
+$(srcdir)/Makefile.in:  Makefile.am  $(top_srcdir)/configure.in $(ACLOCAL_M4)
+       cd $(top_srcdir) && \
+         $(AUTOMAKE) --gnu  gelfx/Makefile
+Makefile:  $(srcdir)/Makefile.in  $(top_builddir)/config.status
+       cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)
+
+mostlyclean-libtool:
+       -rm -f *.lo
+
+clean-libtool:
+       -rm -rf .libs _libs
+
+distclean-libtool:
+       -rm -f libtool
+uninstall-info-am:
+
+ETAGS = etags
+ETAGSFLAGS =
+
+tags: TAGS
+
+ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
+       list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+       unique=`for i in $$list; do \
+           if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+         done | \
+         $(AWK) '    { files[$$0] = 1; } \
+              END { for (i in files) print i; }'`; \
+       mkid -fID $$unique
+
+TAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+               $(TAGS_FILES) $(LISP)
+       tags=; \
+       here=`pwd`; \
+       list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+       unique=`for i in $$list; do \
+           if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+         done | \
+         $(AWK) '    { files[$$0] = 1; } \
+              END { for (i in files) print i; }'`; \
+       test -z "$(ETAGS_ARGS)$$tags$$unique" \
+         || $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+            $$tags $$unique
+
+GTAGS:
+       here=`$(am__cd) $(top_builddir) && pwd` \
+         && cd $(top_srcdir) \
+         && gtags -i $(GTAGS_ARGS) $$here
+
+distclean-tags:
+       -rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+
+top_distdir = ..
+distdir = $(top_distdir)/$(PACKAGE)-$(VERSION)
+
+distdir: $(DISTFILES)
+       @list='$(DISTFILES)'; for file in $$list; do \
+         if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+         dir=`echo "$$file" | sed -e 's,/[^/]*$$,,'`; \
+         if test "$$dir" != "$$file" && test "$$dir" != "."; then \
+           dir="/$$dir"; \
+           $(mkinstalldirs) "$(distdir)$$dir"; \
+         else \
+           dir=''; \
+         fi; \
+         if test -d $$d/$$file; then \
+           if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+             cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+           fi; \
+           cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+         else \
+           test -f $(distdir)/$$file \
+           || cp -p $$d/$$file $(distdir)/$$file \
+           || exit 1; \
+         fi; \
+       done
+check-am: all-am
+check: check-am
+all-am: Makefile $(HEADERS)
+
+installdirs:
+
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+       @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+       $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+         INSTALL_STRIP_FLAG=-s \
+         `test -z '$(STRIP)' || \
+           echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+       -rm -f Makefile $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+       @echo "This command is intended for maintainers to use"
+       @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-am
+
+distclean-am: clean-am distclean-generic distclean-libtool \
+       distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-exec-am:
+
+install-info: install-info-am
+
+install-man:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+uninstall-am: uninstall-info-am
+
+.PHONY: GTAGS all all-am check check-am clean clean-generic \
+       clean-libtool distclean distclean-generic distclean-libtool \
+       distclean-tags distdir dvi dvi-am info info-am install \
+       install-am install-data install-data-am install-exec \
+       install-exec-am install-info install-info-am install-man \
+       install-strip installcheck installcheck-am installdirs \
+       maintainer-clean maintainer-clean-generic mostlyclean \
+       mostlyclean-generic mostlyclean-libtool tags uninstall \
+       uninstall-am uninstall-info-am
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/gelfx/gelfx.h b/gelfx/gelfx.h
new file mode 100644 (file)
index 0000000..c011a57
--- /dev/null
@@ -0,0 +1,40 @@
+/* Generic ELF wrapper for libelf which does not support gelf_ API.
+   Copyright (C) 2001 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifndef GELFX_H
+#define        GELFX_H
+
+#include <libelf.h>
+#include <gelf.h>
+
+#ifndef HAVE_GELFX_GETSHDR
+
+#define gelfx_getshdr(elf,scn,shdr) gelf_getshdr(scn,shdr)
+#define gelfx_update_shdr(elf,scn,shdr) gelf_update_shdr(scn,shdr)
+#define gelfx_getsym(elf,data,ndx,x) gelf_getsym(data,ndx,x)
+#define gelfx_update_sym(elf,data,ndx,x) gelf_update_sym(data,ndx,x)
+#define gelfx_getdyn(elf,data,ndx,x) gelf_getdyn(data,ndx,x)
+#define gelfx_update_dyn(elf,data,ndx,x) gelf_update_dyn(data,ndx,x)
+#define gelfx_getrel(elf,data,ndx,x) gelf_getrel(data,ndx,x)
+#define gelfx_update_rel(elf,data,ndx,x) gelf_update_rel(data,ndx,x)
+#define gelfx_getrela(elf,data,ndx,x) gelf_getrela(data,ndx,x)
+#define gelfx_update_rela(elf,data,ndx,x) gelf_update_rela(data,ndx,x)
+
+#endif
+
+#endif /* GELFX_H */
diff --git a/gelfx32/Makefile.am b/gelfx32/Makefile.am
new file mode 100644 (file)
index 0000000..ae51b93
--- /dev/null
@@ -0,0 +1,5 @@
+## Process this file with automake to create Makefile.in
+
+AUTOMAKE_OPTIONS = 1.4 gnu
+
+noinst_HEADERS = gelfx.h
diff --git a/gelfx32/Makefile.in b/gelfx32/Makefile.in
new file mode 100644 (file)
index 0000000..4f6898a
--- /dev/null
@@ -0,0 +1,268 @@
+# Makefile.in generated by automake 1.6.3 from Makefile.am.
+# @configure_input@
+
+# Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
+# Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+SHELL = @SHELL@
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = @srcdir@
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+
+bindir = @bindir@
+sbindir = @sbindir@
+libexecdir = @libexecdir@
+datadir = @datadir@
+sysconfdir = @sysconfdir@
+sharedstatedir = @sharedstatedir@
+localstatedir = @localstatedir@
+libdir = @libdir@
+infodir = @infodir@
+mandir = @mandir@
+includedir = @includedir@
+oldincludedir = /usr/include
+pkgdatadir = $(datadir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+top_builddir = ..
+
+ACLOCAL = @ACLOCAL@
+AUTOCONF = @AUTOCONF@
+AUTOMAKE = @AUTOMAKE@
+AUTOHEADER = @AUTOHEADER@
+
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+INSTALL = @INSTALL@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_DATA = @INSTALL_DATA@
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = @program_transform_name@
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+host_alias = @host_alias@
+host_triplet = @host@
+
+EXEEXT = @EXEEXT@
+OBJEXT = @OBJEXT@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+AMTAR = @AMTAR@
+AR = @AR@
+AS = @AS@
+AWK = @AWK@
+CC = @CC@
+CPP = @CPP@
+CXX = @CXX@
+CXXCPP = @CXXCPP@
+DEPDIR = @DEPDIR@
+DLLTOOL = @DLLTOOL@
+ECHO = @ECHO@
+EGREP = @EGREP@
+F77 = @F77@
+GCJ = @GCJ@
+GCJFLAGS = @GCJFLAGS@
+GELFINCLUDE = @GELFINCLUDE@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LIBGELF = @LIBGELF@
+LIBTOOL = @LIBTOOL@
+LN_S = @LN_S@
+OBJDUMP = @OBJDUMP@
+PACKAGE = @PACKAGE@
+RANLIB = @RANLIB@
+RC = @RC@
+STRIP = @STRIP@
+VERSION = @VERSION@
+am__include = @am__include@
+am__quote = @am__quote@
+install_sh = @install_sh@
+
+AUTOMAKE_OPTIONS = 1.4 gnu
+
+noinst_HEADERS = gelfx.h
+subdir = gelfx32
+mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+DIST_SOURCES =
+HEADERS = $(noinst_HEADERS)
+
+DIST_COMMON = $(noinst_HEADERS) Makefile.am Makefile.in
+all: all-am
+
+.SUFFIXES:
+$(srcdir)/Makefile.in:  Makefile.am  $(top_srcdir)/configure.in $(ACLOCAL_M4)
+       cd $(top_srcdir) && \
+         $(AUTOMAKE) --gnu  gelfx32/Makefile
+Makefile:  $(srcdir)/Makefile.in  $(top_builddir)/config.status
+       cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)
+
+mostlyclean-libtool:
+       -rm -f *.lo
+
+clean-libtool:
+       -rm -rf .libs _libs
+
+distclean-libtool:
+       -rm -f libtool
+uninstall-info-am:
+
+ETAGS = etags
+ETAGSFLAGS =
+
+tags: TAGS
+
+ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
+       list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+       unique=`for i in $$list; do \
+           if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+         done | \
+         $(AWK) '    { files[$$0] = 1; } \
+              END { for (i in files) print i; }'`; \
+       mkid -fID $$unique
+
+TAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+               $(TAGS_FILES) $(LISP)
+       tags=; \
+       here=`pwd`; \
+       list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+       unique=`for i in $$list; do \
+           if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+         done | \
+         $(AWK) '    { files[$$0] = 1; } \
+              END { for (i in files) print i; }'`; \
+       test -z "$(ETAGS_ARGS)$$tags$$unique" \
+         || $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+            $$tags $$unique
+
+GTAGS:
+       here=`$(am__cd) $(top_builddir) && pwd` \
+         && cd $(top_srcdir) \
+         && gtags -i $(GTAGS_ARGS) $$here
+
+distclean-tags:
+       -rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+
+top_distdir = ..
+distdir = $(top_distdir)/$(PACKAGE)-$(VERSION)
+
+distdir: $(DISTFILES)
+       @list='$(DISTFILES)'; for file in $$list; do \
+         if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+         dir=`echo "$$file" | sed -e 's,/[^/]*$$,,'`; \
+         if test "$$dir" != "$$file" && test "$$dir" != "."; then \
+           dir="/$$dir"; \
+           $(mkinstalldirs) "$(distdir)$$dir"; \
+         else \
+           dir=''; \
+         fi; \
+         if test -d $$d/$$file; then \
+           if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+             cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+           fi; \
+           cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+         else \
+           test -f $(distdir)/$$file \
+           || cp -p $$d/$$file $(distdir)/$$file \
+           || exit 1; \
+         fi; \
+       done
+check-am: all-am
+check: check-am
+all-am: Makefile $(HEADERS)
+
+installdirs:
+
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+       @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+       $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+         INSTALL_STRIP_FLAG=-s \
+         `test -z '$(STRIP)' || \
+           echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+       -rm -f Makefile $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+       @echo "This command is intended for maintainers to use"
+       @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-am
+
+distclean-am: clean-am distclean-generic distclean-libtool \
+       distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-exec-am:
+
+install-info: install-info-am
+
+install-man:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+uninstall-am: uninstall-info-am
+
+.PHONY: GTAGS all all-am check check-am clean clean-generic \
+       clean-libtool distclean distclean-generic distclean-libtool \
+       distclean-tags distdir dvi dvi-am info info-am install \
+       install-am install-data install-data-am install-exec \
+       install-exec-am install-info install-info-am install-man \
+       install-strip installcheck installcheck-am installdirs \
+       maintainer-clean maintainer-clean-generic mostlyclean \
+       mostlyclean-generic mostlyclean-libtool tags uninstall \
+       uninstall-am uninstall-info-am
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/gelfx32/gelfx.h b/gelfx32/gelfx.h
new file mode 100644 (file)
index 0000000..7668a84
--- /dev/null
@@ -0,0 +1,227 @@
+/* gelf API which supports ELFCLASS32 only.
+   Copyright (C) 2001 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifndef GELFX_H
+#define        GELFX_H
+
+#include <error.h>
+#include <libelf.h>
+#include <stdlib.h>
+#include <string.h>
+
+typedef Elf32_Half     GElf_Half;
+typedef Elf32_Word     GElf_Word;
+typedef        Elf32_Sword     GElf_Sword;
+typedef Elf32_Xword    GElf_Xword;
+typedef        Elf32_Sxword    GElf_Sxword;
+typedef Elf32_Addr     GElf_Addr;
+typedef Elf32_Off      GElf_Off;
+typedef Elf32_Ehdr     GElf_Ehdr;
+typedef Elf32_Shdr     GElf_Shdr;
+typedef Elf32_Section  GElf_Section;
+typedef Elf32_Sym      GElf_Sym;
+typedef Elf32_Rel      GElf_Rel;
+typedef Elf32_Rela     GElf_Rela;
+typedef Elf32_Phdr     GElf_Phdr;
+typedef Elf32_Dyn      GElf_Dyn;
+#define GELF_ST_BIND   ELF32_ST_BIND
+#define GELF_ST_TYPE   ELF32_ST_TYPE
+#define GELF_ST_INFO   ELF32_ST_INFO
+#define GELF_R_SYM     ELF32_R_SYM
+#define GELF_R_TYPE    ELF32_R_TYPE
+#define GELF_R_INFO    ELF32_R_INFO
+
+extern inline int
+gelf_getclass (Elf *elf)
+{
+  size_t size;
+  char *e_ident = elf_getident (elf, &size);
+  if (e_ident [EI_CLASS] == ELFCLASS64)
+    error (EXIT_FAILURE, 0, "64-bit ELF not supported");
+  return e_ident [EI_CLASS] == ELFCLASS32 ? ELFCLASS32 : ELFCLASSNONE;
+}
+
+#define gelf_fsize(e,t,c,v) elf32_fsize(t,c,v)
+
+extern inline GElf_Ehdr *gelf_getehdr (Elf *elf, GElf_Ehdr *dst)
+{
+  Elf32_Ehdr *ehdr = elf32_getehdr (elf);
+  if (ehdr == NULL)
+    return NULL;
+  return memcpy (dst, ehdr, sizeof (Elf32_Ehdr));
+}
+
+extern inline int
+gelf_update_ehdr (Elf *elf, GElf_Ehdr *src)
+{
+  Elf32_Ehdr *ehdr = elf32_getehdr (elf);
+  if (ehdr == NULL)
+    return 0;
+  memcpy (ehdr, src, sizeof (Elf32_Ehdr));
+  return 1;
+}
+
+extern inline unsigned long
+gelf_newehdr (Elf *elf, int class)
+{
+  if (class != ELFCLASS32)
+    return 0;
+  return (unsigned long) elf32_newehdr (elf);
+}
+
+extern inline GElf_Phdr *
+gelf_getphdr (Elf *elf, int ndx, GElf_Phdr *dst)
+{
+  Elf32_Ehdr *ehdr = elf32_getehdr (elf);
+  Elf32_Phdr *phdr = elf32_getphdr (elf);
+  if (ehdr == NULL || phdr == NULL || ndx >= ehdr->e_phnum)
+    return NULL;
+  return memcpy (dst, phdr + ndx, sizeof (Elf32_Phdr));
+}
+
+extern inline int
+gelf_update_phdr (Elf *elf, int ndx, GElf_Phdr *src)
+{
+  Elf32_Ehdr *ehdr = elf32_getehdr (elf);
+  Elf32_Phdr *phdr = elf32_getphdr (elf);
+  if (ehdr == NULL || phdr == NULL || ndx >= ehdr->e_phnum)
+    return 0;
+  memcpy (phdr + ndx, src, sizeof (Elf32_Phdr));
+  return 1;
+}
+
+extern inline unsigned long
+gelf_newphdr (Elf *elf, size_t phnum)
+{
+  return (unsigned long) elf32_newphdr (elf, phnum);
+}
+
+#define gelf_xlatetom(e,d,s,n) elf32_xlatetom(e,d,s,n)
+#define gelf_xlatetof(e,d,s,n) elf32_xlatetof(e,d,s,n)
+
+extern inline GElf_Shdr *
+gelf_getshdr (Elf_Scn *scn, GElf_Shdr *dst)
+{
+  Elf32_Shdr *shdr = elf32_getshdr (scn);
+  if (shdr == NULL)
+    return NULL;
+  return memcpy (dst, shdr, sizeof (Elf32_Shdr));
+}
+
+extern inline int
+gelf_update_shdr (Elf_Scn *scn, GElf_Shdr *src)
+{
+  Elf32_Shdr *shdr = elf32_getshdr (scn);
+  if (shdr == NULL)
+    return 0;
+  memcpy (shdr, src, sizeof (Elf32_Shdr));
+  return 1;
+}
+
+extern inline GElf_Sym *
+gelf_getsym (Elf_Data *data, int ndx, GElf_Sym *dst)
+{
+  if (data->d_type != ELF_T_SYM
+      || (ndx + 1) * sizeof (Elf32_Sym) > data->d_size)
+    return NULL;
+  *dst = ((GElf_Sym *) data->d_buf)[ndx];
+  return dst;
+}
+
+extern inline int
+gelf_update_sym (Elf_Data *data, int ndx, GElf_Sym *src)
+{
+  if (data->d_type != ELF_T_SYM
+      || (ndx + 1) * sizeof (Elf32_Sym) > data->d_size)
+    return 0;
+  ((GElf_Sym *) data->d_buf)[ndx] = *src;
+  return 1;
+}
+
+extern inline GElf_Dyn *
+gelf_getdyn (Elf_Data *data, int ndx, GElf_Dyn *dst)
+{
+  if (data->d_type != ELF_T_DYN
+      || (ndx + 1) * sizeof (Elf32_Dyn) > data->d_size)
+    return NULL;
+  *dst = ((GElf_Dyn *) data->d_buf)[ndx];
+  return dst;
+}
+
+extern inline int
+gelf_update_dyn (Elf_Data *data, int ndx, GElf_Dyn *src)
+{
+  if (data->d_type != ELF_T_DYN
+      || (ndx + 1) * sizeof (Elf32_Dyn) > data->d_size)
+    return 0;
+  ((GElf_Dyn *) data->d_buf)[ndx] = *src;
+  return 1;
+}
+
+extern inline GElf_Rel *
+gelf_getrel (Elf_Data *data, int ndx, GElf_Rel *dst)
+{
+  if (data->d_type != ELF_T_REL
+      || (ndx + 1) * sizeof (Elf32_Rel) > data->d_size)
+    return NULL;
+  *dst = ((GElf_Rel *) data->d_buf)[ndx];
+  return dst;
+}
+
+extern inline int
+gelf_update_rel (Elf_Data *data, int ndx, GElf_Rel *src)
+{
+  if (data->d_type != ELF_T_REL
+      || (ndx + 1) * sizeof (Elf32_Rel) > data->d_size)
+    return 0;
+  ((GElf_Rel *) data->d_buf)[ndx] = *src;
+  return 1;
+}
+
+extern inline GElf_Rela *
+gelf_getrela (Elf_Data *data, int ndx, GElf_Rela *dst)
+{
+  if (data->d_type != ELF_T_RELA
+      || (ndx + 1) * sizeof (Elf32_Rela) > data->d_size)
+    return NULL;
+  *dst = ((GElf_Rela *) data->d_buf)[ndx];
+  return dst;
+}
+
+extern inline int
+gelf_update_rela (Elf_Data *data, int ndx, GElf_Rela *src)
+{
+  if (data->d_type != ELF_T_RELA
+      || (ndx + 1) * sizeof (Elf32_Rela) > data->d_size)
+    return 0;
+  ((GElf_Rela *) data->d_buf)[ndx] = *src;
+  return 1;
+}
+
+#define gelfx_getshdr(elf,scn,shdr) gelf_getshdr(scn,shdr)
+#define gelfx_update_shdr(elf,scn,shdr) gelf_update_shdr(scn,shdr)
+#define gelfx_getsym(elf,data,ndx,x) gelf_getsym(data,ndx,x)
+#define gelfx_update_sym(elf,data,ndx,x) gelf_update_sym(data,ndx,x)
+#define gelfx_getdyn(elf,data,ndx,x) gelf_getdyn(data,ndx,x)
+#define gelfx_update_dyn(elf,data,ndx,x) gelf_update_dyn(data,ndx,x)
+#define gelfx_getrel(elf,data,ndx,x) gelf_getrel(data,ndx,x)
+#define gelfx_update_rel(elf,data,ndx,x) gelf_update_rel(data,ndx,x)
+#define gelfx_getrela(elf,data,ndx,x) gelf_getrela(data,ndx,x)
+#define gelfx_update_rela(elf,data,ndx,x) gelf_update_rela(data,ndx,x)
+
+#endif /* GELFX_H */
diff --git a/install-sh b/install-sh
new file mode 100755 (executable)
index 0000000..398a88e
--- /dev/null
@@ -0,0 +1,251 @@
+#!/bin/sh
+#
+# install - install a program, script, or datafile
+# This comes from X11R5 (mit/util/scripts/install.sh).
+#
+# Copyright 1991 by the Massachusetts Institute of Technology
+#
+# Permission to use, copy, modify, distribute, and sell this software and its
+# documentation for any purpose is hereby granted without fee, provided that
+# the above copyright notice appear in all copies and that both that
+# copyright notice and this permission notice appear in supporting
+# documentation, and that the name of M.I.T. not be used in advertising or
+# publicity pertaining to distribution of the software without specific,
+# written prior permission.  M.I.T. makes no representations about the
+# suitability of this software for any purpose.  It is provided "as is"
+# without express or implied warranty.
+#
+# Calling this script install-sh is preferred over install.sh, to prevent
+# `make' implicit rules from creating a file called install from it
+# when there is no Makefile.
+#
+# This script is compatible with the BSD install script, but was written
+# from scratch.  It can only install one file at a time, a restriction
+# shared with many OS's install programs.
+
+
+# set DOITPROG to echo to test this script
+
+# Don't use :- since 4.3BSD and earlier shells don't like it.
+doit="${DOITPROG-}"
+
+
+# put in absolute paths if you don't have them in your path; or use env. vars.
+
+mvprog="${MVPROG-mv}"
+cpprog="${CPPROG-cp}"
+chmodprog="${CHMODPROG-chmod}"
+chownprog="${CHOWNPROG-chown}"
+chgrpprog="${CHGRPPROG-chgrp}"
+stripprog="${STRIPPROG-strip}"
+rmprog="${RMPROG-rm}"
+mkdirprog="${MKDIRPROG-mkdir}"
+
+transformbasename=""
+transform_arg=""
+instcmd="$mvprog"
+chmodcmd="$chmodprog 0755"
+chowncmd=""
+chgrpcmd=""
+stripcmd=""
+rmcmd="$rmprog -f"
+mvcmd="$mvprog"
+src=""
+dst=""
+dir_arg=""
+
+while [ x"$1" != x ]; do
+    case $1 in
+       -c) instcmd="$cpprog"
+           shift
+           continue;;
+
+       -d) dir_arg=true
+           shift
+           continue;;
+
+       -m) chmodcmd="$chmodprog $2"
+           shift
+           shift
+           continue;;
+
+       -o) chowncmd="$chownprog $2"
+           shift
+           shift
+           continue;;
+
+       -g) chgrpcmd="$chgrpprog $2"
+           shift
+           shift
+           continue;;
+
+       -s) stripcmd="$stripprog"
+           shift
+           continue;;
+
+       -t=*) transformarg=`echo $1 | sed 's/-t=//'`
+           shift
+           continue;;
+
+       -b=*) transformbasename=`echo $1 | sed 's/-b=//'`
+           shift
+           continue;;
+
+       *)  if [ x"$src" = x ]
+           then
+               src=$1
+           else
+               # this colon is to work around a 386BSD /bin/sh bug
+               :
+               dst=$1
+           fi
+           shift
+           continue;;
+    esac
+done
+
+if [ x"$src" = x ]
+then
+       echo "install:  no input file specified"
+       exit 1
+else
+       :
+fi
+
+if [ x"$dir_arg" != x ]; then
+       dst=$src
+       src=""
+       
+       if [ -d $dst ]; then
+               instcmd=:
+               chmodcmd=""
+       else
+               instcmd=$mkdirprog
+       fi
+else
+
+# Waiting for this to be detected by the "$instcmd $src $dsttmp" command
+# might cause directories to be created, which would be especially bad 
+# if $src (and thus $dsttmp) contains '*'.
+
+       if [ -f $src -o -d $src ]
+       then
+               :
+       else
+               echo "install:  $src does not exist"
+               exit 1
+       fi
+       
+       if [ x"$dst" = x ]
+       then
+               echo "install:  no destination specified"
+               exit 1
+       else
+               :
+       fi
+
+# If destination is a directory, append the input filename; if your system
+# does not like double slashes in filenames, you may need to add some logic
+
+       if [ -d $dst ]
+       then
+               dst="$dst"/`basename $src`
+       else
+               :
+       fi
+fi
+
+## this sed command emulates the dirname command
+dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
+
+# Make sure that the destination directory exists.
+#  this part is taken from Noah Friedman's mkinstalldirs script
+
+# Skip lots of stat calls in the usual case.
+if [ ! -d "$dstdir" ]; then
+defaultIFS='
+       '
+IFS="${IFS-${defaultIFS}}"
+
+oIFS="${IFS}"
+# Some sh's can't handle IFS=/ for some reason.
+IFS='%'
+set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'`
+IFS="${oIFS}"
+
+pathcomp=''
+
+while [ $# -ne 0 ] ; do
+       pathcomp="${pathcomp}${1}"
+       shift
+
+       if [ ! -d "${pathcomp}" ] ;
+        then
+               $mkdirprog "${pathcomp}"
+       else
+               :
+       fi
+
+       pathcomp="${pathcomp}/"
+done
+fi
+
+if [ x"$dir_arg" != x ]
+then
+       $doit $instcmd $dst &&
+
+       if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else : ; fi &&
+       if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else : ; fi &&
+       if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else : ; fi &&
+       if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else : ; fi
+else
+
+# If we're going to rename the final executable, determine the name now.
+
+       if [ x"$transformarg" = x ] 
+       then
+               dstfile=`basename $dst`
+       else
+               dstfile=`basename $dst $transformbasename | 
+                       sed $transformarg`$transformbasename
+       fi
+
+# don't allow the sed command to completely eliminate the filename
+
+       if [ x"$dstfile" = x ] 
+       then
+               dstfile=`basename $dst`
+       else
+               :
+       fi
+
+# Make a temp file name in the proper directory.
+
+       dsttmp=$dstdir/#inst.$$#
+
+# Move or copy the file name to the temp name
+
+       $doit $instcmd $src $dsttmp &&
+
+       trap "rm -f ${dsttmp}" 0 &&
+
+# and set any options; do chmod last to preserve setuid bits
+
+# If any of these fail, we abort the whole thing.  If we want to
+# ignore errors from any of these, just make sure not to ignore
+# errors from the above "$doit $instcmd $src $dsttmp" command.
+
+       if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else :;fi &&
+       if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else :;fi &&
+       if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else :;fi &&
+       if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else :;fi &&
+
+# Now rename the file to the real destination.
+
+       $doit $rmcmd -f $dstdir/$dstfile &&
+       $doit $mvcmd $dsttmp $dstdir/$dstfile 
+
+fi &&
+
+
+exit 0
diff --git a/ltconfig b/ltconfig
new file mode 100755 (executable)
index 0000000..c14d83c
--- /dev/null
+++ b/ltconfig
@@ -0,0 +1,3114 @@
+#! /bin/sh
+
+# ltconfig - Create a system-specific libtool.
+# Copyright (C) 1996-1999 Free Software Foundation, Inc.
+# Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
+#
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# A lot of this script is taken from autoconf-2.10.
+
+# Check that we are running under the correct shell.
+SHELL=${CONFIG_SHELL-/bin/sh}
+echo=echo
+if test "X$1" = X--no-reexec; then
+  # Discard the --no-reexec flag, and continue.
+  shift
+elif test "X$1" = X--fallback-echo; then
+  # Avoid inline document here, it may be left over
+  :
+elif test "X`($echo '\t') 2>/dev/null`" = 'X\t'; then
+  # Yippee, $echo works!
+  :
+else
+  # Restart under the correct shell.
+  exec "$SHELL" "$0" --no-reexec ${1+"$@"}
+fi
+
+if test "X$1" = X--fallback-echo; then
+  # used as fallback echo
+  shift
+  cat <<EOF
+$*
+EOF
+  exit 0
+fi
+
+# Find the correct PATH separator.  Usually this is `:', but
+# DJGPP uses `;' like DOS.
+if test "X${PATH_SEPARATOR+set}" != Xset; then
+  UNAME=${UNAME-`uname 2>/dev/null`}
+  case X$UNAME in
+    *-DOS) PATH_SEPARATOR=';' ;;
+    *)     PATH_SEPARATOR=':' ;;
+  esac
+fi
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+if test "X${CDPATH+set}" = Xset; then CDPATH=:; export CDPATH; fi
+
+if test "X${echo_test_string+set}" != Xset; then
+  # find a string as large as possible, as long as the shell can cope with it
+  for cmd in 'sed 50q "$0"' 'sed 20q "$0"' 'sed 10q "$0"' 'sed 2q "$0"' 'echo test'; do
+    # expected sizes: less than 2Kb, 1Kb, 512 bytes, 16 bytes, ...
+    if (echo_test_string="`eval $cmd`") 2>/dev/null &&
+       echo_test_string="`eval $cmd`" &&
+       (test "X$echo_test_string" = "X$echo_test_string") 2>/dev/null; then
+      break
+    fi
+  done
+fi
+
+if test "X`($echo '\t') 2>/dev/null`" != 'X\t' ||
+   test "X`($echo "$echo_test_string") 2>/dev/null`" != X"$echo_test_string"; then
+  # The Solaris, AIX, and Digital Unix default echo programs unquote
+  # backslashes.  This makes it impossible to quote backslashes using
+  #   echo "$something" | sed 's/\\/\\\\/g'
+  #
+  # So, first we look for a working echo in the user's PATH.
+
+  IFS="${IFS=  }"; save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR}"
+  for dir in $PATH /usr/ucb; do
+    if (test -f $dir/echo || test -f $dir/echo$ac_exeext) &&
+       test "X`($dir/echo '\t') 2>/dev/null`" = 'X\t' &&
+       test "X`($dir/echo "$echo_test_string") 2>/dev/null`" = X"$echo_test_string"; then
+      echo="$dir/echo"
+      break
+    fi
+  done
+  IFS="$save_ifs"
+
+  if test "X$echo" = Xecho; then
+    # We didn't find a better echo, so look for alternatives.
+    if test "X`(print -r '\t') 2>/dev/null`" = 'X\t' &&
+       test "X`(print -r "$echo_test_string") 2>/dev/null`" = X"$echo_test_string"; then
+      # This shell has a builtin print -r that does the trick.
+      echo='print -r'
+    elif (test -f /bin/ksh || test -f /bin/ksh$ac_exeext) &&
+        test "X$CONFIG_SHELL" != X/bin/ksh; then
+      # If we have ksh, try running ltconfig again with it.
+      ORIGINAL_CONFIG_SHELL="${CONFIG_SHELL-/bin/sh}"
+      export ORIGINAL_CONFIG_SHELL
+      CONFIG_SHELL=/bin/ksh
+      export CONFIG_SHELL
+      exec "$CONFIG_SHELL" "$0" --no-reexec ${1+"$@"}
+    else
+      # Try using printf.
+      echo='printf "%s\n"'
+      if test "X`($echo '\t') 2>/dev/null`" = 'X\t' &&
+        test "X`($echo "$echo_test_string") 2>/dev/null`" = X"$echo_test_string"; then
+       # Cool, printf works
+       :
+      elif test "X`("$ORIGINAL_CONFIG_SHELL" "$0" --fallback-echo '\t') 2>/dev/null`" = 'X\t' &&
+          test "X`("$ORIGINAL_CONFIG_SHELL" "$0" --fallback-echo "$echo_test_string") 2>/dev/null`" = X"$echo_test_string"; then
+       CONFIG_SHELL="$ORIGINAL_CONFIG_SHELL"
+       export CONFIG_SHELL
+       SHELL="$CONFIG_SHELL"
+       export SHELL
+       echo="$CONFIG_SHELL $0 --fallback-echo"
+      elif test "X`("$CONFIG_SHELL" "$0" --fallback-echo '\t') 2>/dev/null`" = 'X\t' &&
+          test "X`("$CONFIG_SHELL" "$0" --fallback-echo "$echo_test_string") 2>/dev/null`" = X"$echo_test_string"; then
+       echo="$CONFIG_SHELL $0 --fallback-echo"
+      else
+       # maybe with a smaller string...
+       prev=:
+
+       for cmd in 'echo test' 'sed 2q "$0"' 'sed 10q "$0"' 'sed 20q "$0"' 'sed 50q "$0"'; do
+         if (test "X$echo_test_string" = "X`eval $cmd`") 2>/dev/null; then
+           break
+         fi
+         prev="$cmd"
+       done
+
+       if test "$prev" != 'sed 50q "$0"'; then
+         echo_test_string=`eval $prev`
+         export echo_test_string
+         exec "${ORIGINAL_CONFIG_SHELL}" "$0" ${1+"$@"}
+       else
+         # Oops.  We lost completely, so just stick with echo.
+         echo=echo
+       fi
+      fi
+    fi
+  fi
+fi
+
+# Sed substitution that helps us do robust quoting.  It backslashifies
+# metacharacters that are still active within double-quoted strings.
+Xsed='sed -e s/^X//'
+sed_quote_subst='s/\([\\"\\`$\\\\]\)/\\\1/g'
+
+# Same as above, but do not quote variable references.
+double_quote_subst='s/\([\\"\\`\\\\]\)/\\\1/g'
+
+# Sed substitution to delay expansion of an escaped shell variable in a
+# double_quote_subst'ed string.
+delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'
+
+# The name of this program.
+progname=`$echo "X$0" | $Xsed -e 's%^.*/%%'`
+
+# Constants:
+PROGRAM=ltconfig
+PACKAGE=libtool
+VERSION=1.3.5
+TIMESTAMP=" (1.385.2.206 2000/05/27 11:12:27)"
+ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
+ac_link='${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+rm="rm -f"
+
+help="Try \`$progname --help' for more information."
+
+# Global variables:
+default_ofile=libtool
+can_build_shared=yes
+enable_shared=yes
+# All known linkers require a `.a' archive for static linking (except M$VC,
+# which needs '.lib').
+enable_static=yes
+enable_fast_install=yes
+enable_dlopen=unknown
+enable_win32_dll=no
+ltmain=
+silent=
+srcdir=
+ac_config_guess=
+ac_config_sub=
+host=
+nonopt=
+ofile="$default_ofile"
+verify_host=yes
+with_gcc=no
+with_gnu_ld=no
+need_locks=yes
+ac_ext=c
+objext=o
+libext=a
+exeext=
+cache_file=
+
+old_AR="$AR"
+old_CC="$CC"
+old_CFLAGS="$CFLAGS"
+old_CPPFLAGS="$CPPFLAGS"
+old_LDFLAGS="$LDFLAGS"
+old_LD="$LD"
+old_LN_S="$LN_S"
+old_LIBS="$LIBS"
+old_NM="$NM"
+old_RANLIB="$RANLIB"
+old_DLLTOOL="$DLLTOOL"
+old_OBJDUMP="$OBJDUMP"
+old_AS="$AS"
+
+# Parse the command line options.
+args=
+prev=
+for option
+do
+  case "$option" in
+  -*=*) optarg=`echo "$option" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
+  *) optarg= ;;
+  esac
+
+  # If the previous option needs an argument, assign it.
+  if test -n "$prev"; then
+    eval "$prev=\$option"
+    prev=
+    continue
+  fi
+
+  case "$option" in
+  --help) cat <<EOM
+Usage: $progname [OPTION]... [HOST [LTMAIN]]
+
+Generate a system-specific libtool script.
+
+    --debug                enable verbose shell tracing
+    --disable-shared       do not build shared libraries
+    --disable-static       do not build static libraries
+    --disable-fast-install do not optimize for fast installation
+    --enable-dlopen        enable dlopen support
+    --enable-win32-dll     enable building dlls on win32 hosts
+    --help                 display this help and exit
+    --no-verify            do not verify that HOST is a valid host type
+-o, --output=FILE          specify the output file [default=$default_ofile]
+    --quiet                same as \`--silent'
+    --silent               do not print informational messages
+    --srcdir=DIR           find \`config.guess' in DIR
+    --version              output version information and exit
+    --with-gcc             assume that the GNU C compiler will be used
+    --with-gnu-ld          assume that the C compiler uses the GNU linker
+    --disable-lock         disable file locking
+    --cache-file=FILE      configure cache file
+
+LTMAIN is the \`ltmain.sh' shell script fragment or \`ltmain.c' program
+that provides basic libtool functionality.
+
+HOST is the canonical host system name [default=guessed].
+EOM
+  exit 0
+  ;;
+
+  --debug)
+    echo "$progname: enabling shell trace mode"
+    set -x
+    ;;
+
+  --disable-shared) enable_shared=no ;;
+
+  --disable-static) enable_static=no ;;
+
+  --disable-fast-install) enable_fast_install=no ;;
+
+  --enable-dlopen) enable_dlopen=yes ;;
+
+  --enable-win32-dll) enable_win32_dll=yes ;;
+
+  --quiet | --silent) silent=yes ;;
+
+  --srcdir) prev=srcdir ;;
+  --srcdir=*) srcdir="$optarg" ;;
+
+  --no-verify) verify_host=no ;;
+
+  --output | -o) prev=ofile ;;
+  --output=*) ofile="$optarg" ;;
+
+  --version) echo "$PROGRAM (GNU $PACKAGE) $VERSION$TIMESTAMP"; exit 0 ;;
+
+  --with-gcc) with_gcc=yes ;;
+  --with-gnu-ld) with_gnu_ld=yes ;;
+
+  --disable-lock) need_locks=no ;;
+
+  --cache-file=*) cache_file="$optarg" ;;
+
+  -*)
+    echo "$progname: unrecognized option \`$option'" 1>&2
+    echo "$help" 1>&2
+    exit 1
+    ;;
+
+  *)
+    if test -z "$ltmain"; then
+      ltmain="$option"
+    elif test -z "$host"; then
+# This generates an unnecessary warning for sparc-sun-solaris4.1.3_U1
+#      if test -n "`echo $option| sed 's/[-a-z0-9.]//g'`"; then
+#        echo "$progname: warning \`$option' is not a valid host type" 1>&2
+#      fi
+      host="$option"
+    else
+      echo "$progname: too many arguments" 1>&2
+      echo "$help" 1>&2
+      exit 1
+    fi ;;
+  esac
+done
+
+if test -z "$ltmain"; then
+  echo "$progname: you must specify a LTMAIN file" 1>&2
+  echo "$help" 1>&2
+  exit 1
+fi
+
+if test ! -f "$ltmain"; then
+  echo "$progname: \`$ltmain' does not exist" 1>&2
+  echo "$help" 1>&2
+  exit 1
+fi
+
+# Quote any args containing shell metacharacters.
+ltconfig_args=
+for arg
+do
+  case "$arg" in
+  *" "*|*"     "*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?]*)
+  ltconfig_args="$ltconfig_args '$arg'" ;;
+  *) ltconfig_args="$ltconfig_args $arg" ;;
+  esac
+done
+
+# A relevant subset of AC_INIT.
+
+# File descriptor usage:
+# 0 standard input
+# 1 file creation
+# 2 errors and warnings
+# 3 some systems may open it to /dev/tty
+# 4 used on the Kubota Titan
+# 5 compiler messages saved in config.log
+# 6 checking for... messages and results
+if test "$silent" = yes; then
+  exec 6>/dev/null
+else
+  exec 6>&1
+fi
+exec 5>>./config.log
+
+# NLS nuisances.
+# Only set LANG and LC_ALL to C if already set.
+# These must not be set unconditionally because not all systems understand
+# e.g. LANG=C (notably SCO).
+if test "X${LC_ALL+set}" = Xset; then LC_ALL=C; export LC_ALL; fi
+if test "X${LANG+set}"   = Xset; then LANG=C;   export LANG;   fi
+
+if test -n "$cache_file" && test -r "$cache_file"; then
+  echo "loading cache $cache_file within ltconfig"
+  . $cache_file
+fi
+
+if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
+  # Stardent Vistra SVR4 grep lacks -e, says ghazi@caip.rutgers.edu.
+  if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then
+    ac_n= ac_c='
+' ac_t='       '
+  else
+    ac_n=-n ac_c= ac_t=
+  fi
+else
+  ac_n= ac_c='\c' ac_t=
+fi
+
+if test -z "$srcdir"; then
+  # Assume the source directory is the same one as the path to LTMAIN.
+  srcdir=`$echo "X$ltmain" | $Xsed -e 's%/[^/]*$%%'`
+  test "$srcdir" = "$ltmain" && srcdir=.
+fi
+
+trap "$rm conftest*; exit 1" 1 2 15
+if test "$verify_host" = yes; then
+  # Check for config.guess and config.sub.
+  ac_aux_dir=
+  for ac_dir in $srcdir $srcdir/.. $srcdir/../..; do
+    if test -f $ac_dir/config.guess; then
+      ac_aux_dir=$ac_dir
+      break
+    fi
+  done
+  if test -z "$ac_aux_dir"; then
+    echo "$progname: cannot find config.guess in $srcdir $srcdir/.. $srcdir/../.." 1>&2
+    echo "$help" 1>&2
+    exit 1
+  fi
+  ac_config_guess=$ac_aux_dir/config.guess
+  ac_config_sub=$ac_aux_dir/config.sub
+
+  # Make sure we can run config.sub.
+  if $SHELL $ac_config_sub sun4 >/dev/null 2>&1; then :
+  else
+    echo "$progname: cannot run $ac_config_sub" 1>&2
+    echo "$help" 1>&2
+    exit 1
+  fi
+
+  echo $ac_n "checking host system type""... $ac_c" 1>&6
+
+  host_alias=$host
+  case "$host_alias" in
+  "")
+    if host_alias=`$SHELL $ac_config_guess`; then :
+    else
+      echo "$progname: cannot guess host type; you must specify one" 1>&2
+      echo "$help" 1>&2
+      exit 1
+    fi ;;
+  esac
+  host=`$SHELL $ac_config_sub $host_alias`
+  echo "$ac_t$host" 1>&6
+
+  # Make sure the host verified.
+  test -z "$host" && exit 1
+
+elif test -z "$host"; then
+  echo "$progname: you must specify a host type if you use \`--no-verify'" 1>&2
+  echo "$help" 1>&2
+  exit 1
+else
+  host_alias=$host
+fi
+
+# Transform linux* to *-*-linux-gnu*, to support old configure scripts.
+case "$host_os" in
+linux-gnu*) ;;
+linux*) host=`echo $host | sed 's/^\(.*-.*-linux\)\(.*\)$/\1-gnu\2/'`
+esac
+
+host_cpu=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
+host_vendor=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
+host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
+
+case "$host_os" in
+aix3*)
+  # AIX sometimes has problems with the GCC collect2 program.  For some
+  # reason, if we set the COLLECT_NAMES environment variable, the problems
+  # vanish in a puff of smoke.
+  if test "X${COLLECT_NAMES+set}" != Xset; then
+    COLLECT_NAMES=
+    export COLLECT_NAMES
+  fi
+  ;;
+esac
+
+# Determine commands to create old-style static archives.
+old_archive_cmds='$AR cru $oldlib$oldobjs'
+old_postinstall_cmds='chmod 644 $oldlib'
+old_postuninstall_cmds=
+
+# Set a sane default for `AR'.
+test -z "$AR" && AR=ar
+
+# Set a sane default for `OBJDUMP'.
+test -z "$OBJDUMP" && OBJDUMP=objdump
+
+# If RANLIB is not set, then run the test.
+if test "${RANLIB+set}" != "set"; then
+  result=no
+
+  echo $ac_n "checking for ranlib... $ac_c" 1>&6
+  IFS="${IFS=  }"; save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR}"
+  for dir in $PATH; do
+    test -z "$dir" && dir=.
+    if test -f $dir/ranlib || test -f $dir/ranlib$ac_exeext; then
+      RANLIB="ranlib"
+      result="ranlib"
+      break
+    fi
+  done
+  IFS="$save_ifs"
+
+  echo "$ac_t$result" 1>&6
+fi
+
+if test -n "$RANLIB"; then
+  old_archive_cmds="$old_archive_cmds~\$RANLIB \$oldlib"
+  old_postinstall_cmds="\$RANLIB \$oldlib~$old_postinstall_cmds"
+fi
+
+# Set sane defaults for `DLLTOOL', `OBJDUMP', and `AS', used on cygwin.
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+test -z "$OBJDUMP" && OBJDUMP=objdump
+test -z "$AS" && AS=as
+
+# Check to see if we are using GCC.
+if test "$with_gcc" != yes || test -z "$CC"; then
+  # If CC is not set, then try to find GCC or a usable CC.
+  if test -z "$CC"; then
+    echo $ac_n "checking for gcc... $ac_c" 1>&6
+    IFS="${IFS=        }"; save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR}"
+    for dir in $PATH; do
+      test -z "$dir" && dir=.
+      if test -f $dir/gcc || test -f $dir/gcc$ac_exeext; then
+       CC="gcc"
+       break
+      fi
+    done
+    IFS="$save_ifs"
+
+    if test -n "$CC"; then
+      echo "$ac_t$CC" 1>&6
+    else
+      echo "$ac_t"no 1>&6
+    fi
+  fi
+
+  # Not "gcc", so try "cc", rejecting "/usr/ucb/cc".
+  if test -z "$CC"; then
+    echo $ac_n "checking for cc... $ac_c" 1>&6
+    IFS="${IFS=        }"; save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR}"
+    cc_rejected=no
+    for dir in $PATH; do
+      test -z "$dir" && dir=.
+      if test -f $dir/cc || test -f $dir/cc$ac_exeext; then
+       if test "$dir/cc" = "/usr/ucb/cc"; then
+         cc_rejected=yes
+         continue
+       fi
+       CC="cc"
+       break
+      fi
+    done
+    IFS="$save_ifs"
+    if test $cc_rejected = yes; then
+      # We found a bogon in the path, so make sure we never use it.
+      set dummy $CC
+      shift
+      if test $# -gt 0; then
+       # We chose a different compiler from the bogus one.
+       # However, it has the same name, so the bogon will be chosen
+       # first if we set CC to just the name; use the full file name.
+       shift
+       set dummy "$dir/cc" "$@"
+       shift
+       CC="$@"
+      fi
+    fi
+
+    if test -n "$CC"; then
+      echo "$ac_t$CC" 1>&6
+    else
+      echo "$ac_t"no 1>&6
+    fi
+
+    if test -z "$CC"; then
+      echo "$progname: error: no acceptable cc found in \$PATH" 1>&2
+      exit 1
+    fi
+  fi
+
+  # Now see if the compiler is really GCC.
+  with_gcc=no
+  echo $ac_n "checking whether we are using GNU C... $ac_c" 1>&6
+  echo "$progname:581: checking whether we are using GNU C" >&5
+
+  $rm conftest.c
+  cat > conftest.c <<EOF
+#ifdef __GNUC__
+  yes;
+#endif
+EOF
+  if { ac_try='${CC-cc} -E conftest.c'; { (eval echo $progname:589: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+    with_gcc=yes
+  fi
+  $rm conftest.c
+  echo "$ac_t$with_gcc" 1>&6
+fi
+
+# Allow CC to be a program name with arguments.
+set dummy $CC
+compiler="$2"
+
+echo $ac_n "checking for object suffix... $ac_c" 1>&6
+$rm conftest*
+echo 'int i = 1;' > conftest.c
+echo "$progname:603: checking for object suffix" >& 5
+if { (eval echo $progname:604: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; }; then
+  # Append any warnings to the config.log.
+  cat conftest.err 1>&5
+
+  for ac_file in conftest.*; do
+    case $ac_file in
+    *.c) ;;
+    *) objext=`echo $ac_file | sed -e s/conftest.//` ;;
+    esac
+  done
+else
+  cat conftest.err 1>&5
+  echo "$progname: failed program was:" >&5
+  cat conftest.c >&5
+fi
+$rm conftest*
+echo "$ac_t$objext" 1>&6
+
+echo $ac_n "checking for executable suffix... $ac_c" 1>&6
+if eval "test \"`echo '$''{'ac_cv_exeext'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_cv_exeext="no"
+  $rm conftest*
+  echo 'main () { return 0; }' > conftest.c
+  echo "$progname:629: checking for executable suffix" >& 5
+  if { (eval echo $progname:630: \"$ac_link\") 1>&5; (eval $ac_link) 2>conftest.err; }; then
+    # Append any warnings to the config.log.
+    cat conftest.err 1>&5
+
+    for ac_file in conftest.*; do
+      case $ac_file in
+      *.c | *.err | *.$objext ) ;;
+      *) ac_cv_exeext=.`echo $ac_file | sed -e s/conftest.//` ;;
+      esac
+    done
+  else
+    cat conftest.err 1>&5
+    echo "$progname: failed program was:" >&5
+    cat conftest.c >&5
+  fi
+  $rm conftest*
+fi
+if test "X$ac_cv_exeext" = Xno; then
+  exeext=""
+else
+  exeext="$ac_cv_exeext"
+fi
+echo "$ac_t$ac_cv_exeext" 1>&6
+
+echo $ac_n "checking for $compiler option to produce PIC... $ac_c" 1>&6
+pic_flag=
+special_shlib_compile_flags=
+wl=
+link_static_flag=
+no_builtin_flag=
+
+if test "$with_gcc" = yes; then
+  wl='-Wl,'
+  link_static_flag='-static'
+
+  case "$host_os" in
+  beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
+    # PIC is the default for these OSes.
+    ;;
+  aix*)
+    # Below there is a dirty hack to force normal static linking with -ldl
+    # The problem is because libdl dynamically linked with both libc and
+    # libC (AIX C++ library), which obviously doesn't included in libraries
+    # list by gcc. This cause undefined symbols with -static flags.
+    # This hack allows C programs to be linked with "-static -ldl", but
+    # we not sure about C++ programs.
+    link_static_flag="$link_static_flag ${wl}-lC"
+    ;;
+  cygwin* | mingw* | os2*)
+    # We can build DLLs from non-PIC.
+    ;;
+  amigaos*)
+    # FIXME: we need at least 68020 code to build shared libraries, but
+    # adding the `-m68020' flag to GCC prevents building anything better,
+    # like `-m68040'.
+    pic_flag='-m68020 -resident32 -malways-restore-a4'
+    ;;
+  sysv4*MP*)
+    if test -d /usr/nec; then
+       pic_flag=-Kconform_pic
+    fi
+    ;;
+  *)
+    pic_flag='-fPIC'
+    ;;
+  esac
+else
+  # PORTME Check for PIC flags for the system compiler.
+  case "$host_os" in
+  aix3* | aix4*)
+    # All AIX code is PIC.
+    link_static_flag='-bnso -bI:/lib/syscalls.exp'
+    ;;
+
+  hpux9* | hpux10* | hpux11*)
+    # Is there a better link_static_flag that works with the bundled CC?
+    wl='-Wl,'
+    link_static_flag="${wl}-a ${wl}archive"
+    pic_flag='+Z'
+    ;;
+
+  irix5* | irix6*)
+    wl='-Wl,'
+    link_static_flag='-non_shared'
+    # PIC (with -KPIC) is the default.
+    ;;
+
+  cygwin* | mingw* | os2*)
+    # We can build DLLs from non-PIC.
+    ;;
+
+  osf3* | osf4* | osf5*)
+    # All OSF/1 code is PIC.
+    wl='-Wl,'
+    link_static_flag='-non_shared'
+    ;;
+
+  sco3.2v5*)
+    pic_flag='-Kpic'
+    link_static_flag='-dn'
+    special_shlib_compile_flags='-belf'
+    ;;
+
+  solaris*)
+    pic_flag='-KPIC'
+    link_static_flag='-Bstatic'
+    wl='-Wl,'
+    ;;
+
+  sunos4*)
+    pic_flag='-PIC'
+    link_static_flag='-Bstatic'
+    wl='-Qoption ld '
+    ;;
+
+  sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+    pic_flag='-KPIC'
+    link_static_flag='-Bstatic'
+    wl='-Wl,'
+    ;;
+
+  uts4*)
+    pic_flag='-pic'
+    link_static_flag='-Bstatic'
+    ;;
+  sysv4*MP*)
+    if test -d /usr/nec ;then
+      pic_flag='-Kconform_pic'
+      link_static_flag='-Bstatic'
+    fi
+    ;;
+  *)
+    can_build_shared=no
+    ;;
+  esac
+fi
+
+if test -n "$pic_flag"; then
+  echo "$ac_t$pic_flag" 1>&6
+
+  # Check to make sure the pic_flag actually works.
+  echo $ac_n "checking if $compiler PIC flag $pic_flag works... $ac_c" 1>&6
+  $rm conftest*
+  echo "int some_variable = 0;" > conftest.c
+  save_CFLAGS="$CFLAGS"
+  CFLAGS="$CFLAGS $pic_flag -DPIC"
+  echo "$progname:776: checking if $compiler PIC flag $pic_flag works" >&5
+  if { (eval echo $progname:777: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; } && test -s conftest.$objext; then
+    # Append any warnings to the config.log.
+    cat conftest.err 1>&5
+    
+    case "$host_os" in
+    hpux9* | hpux10* | hpux11*)
+      # On HP-UX, both CC and GCC only warn that PIC is supported... then they
+      # create non-PIC objects.  So, if there were any warnings, we assume that
+      # PIC is not supported.
+      if test -s conftest.err; then
+       echo "$ac_t"no 1>&6
+       can_build_shared=no
+       pic_flag=
+      else
+       echo "$ac_t"yes 1>&6
+       pic_flag=" $pic_flag"
+      fi
+      ;;
+    *)
+      echo "$ac_t"yes 1>&6
+      pic_flag=" $pic_flag"
+      ;;
+    esac
+  else
+    # Append any errors to the config.log.
+    cat conftest.err 1>&5
+    can_build_shared=no
+    pic_flag=
+    echo "$ac_t"no 1>&6
+  fi
+  CFLAGS="$save_CFLAGS"
+  $rm conftest*
+else
+  echo "$ac_t"none 1>&6
+fi
+
+# Check to see if options -o and -c are simultaneously supported by compiler
+echo $ac_n "checking if $compiler supports -c -o file.o... $ac_c" 1>&6
+$rm -r conftest 2>/dev/null
+mkdir conftest
+cd conftest
+$rm conftest*
+echo "int some_variable = 0;" > conftest.c
+mkdir out
+# According to Tom Tromey, Ian Lance Taylor reported there are C compilers
+# that will create temporary files in the current directory regardless of
+# the output directory.  Thus, making CWD read-only will cause this test
+# to fail, enabling locking or at least warning the user not to do parallel
+# builds.
+chmod -w .
+save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -o out/conftest2.o"
+echo "$progname:829: checking if $compiler supports -c -o file.o" >&5
+if { (eval echo $progname:830: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>out/conftest.err; } && test -s out/conftest2.o; then
+
+  # The compiler can only warn and ignore the option if not recognized
+  # So say no if there are warnings
+    if test -s out/conftest.err; then
+      echo "$ac_t"no 1>&6
+      compiler_c_o=no
+    else
+      echo "$ac_t"yes 1>&6
+      compiler_c_o=yes
+    fi
+else
+  # Append any errors to the config.log.
+  cat out/conftest.err 1>&5
+  compiler_c_o=no
+  echo "$ac_t"no 1>&6
+fi
+CFLAGS="$save_CFLAGS"
+chmod u+w .
+$rm conftest* out/*
+rmdir out
+cd ..
+rmdir conftest
+$rm -r conftest 2>/dev/null
+
+if test x"$compiler_c_o" = x"yes"; then
+  # Check to see if we can write to a .lo
+  echo $ac_n "checking if $compiler supports -c -o file.lo... $ac_c" 1>&6
+  $rm conftest*
+  echo "int some_variable = 0;" > conftest.c
+  save_CFLAGS="$CFLAGS"
+  CFLAGS="$CFLAGS -c -o conftest.lo"
+  echo "$progname:862: checking if $compiler supports -c -o file.lo" >&5
+if { (eval echo $progname:863: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; } && test -s conftest.lo; then
+
+    # The compiler can only warn and ignore the option if not recognized
+    # So say no if there are warnings
+      if test -s conftest.err; then
+       echo "$ac_t"no 1>&6
+       compiler_o_lo=no
+      else
+       echo "$ac_t"yes 1>&6
+       compiler_o_lo=yes
+      fi
+  else
+    # Append any errors to the config.log.
+    cat conftest.err 1>&5
+    compiler_o_lo=no
+    echo "$ac_t"no 1>&6
+  fi
+  CFLAGS="$save_CFLAGS"
+  $rm conftest*
+else
+  compiler_o_lo=no
+fi
+
+# Check to see if we can do hard links to lock some files if needed
+hard_links="nottested"
+if test "$compiler_c_o" = no && test "$need_locks" != no; then
+  # do not overwrite the value of need_locks provided by the user
+  echo $ac_n "checking if we can lock with hard links... $ac_c" 1>&6
+  hard_links=yes
+  $rm conftest*
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  touch conftest.a
+  ln conftest.a conftest.b 2>&5 || hard_links=no
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  echo "$ac_t$hard_links" 1>&6
+  $rm conftest*
+  if test "$hard_links" = no; then
+    echo "*** WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2
+    need_locks=warn
+  fi
+else
+  need_locks=no
+fi
+
+if test "$with_gcc" = yes; then
+  # Check to see if options -fno-rtti -fno-exceptions are supported by compiler
+  echo $ac_n "checking if $compiler supports -fno-rtti -fno-exceptions ... $ac_c" 1>&6
+  $rm conftest*
+  echo "int some_variable = 0;" > conftest.c
+  save_CFLAGS="$CFLAGS"
+  CFLAGS="$CFLAGS -fno-rtti -fno-exceptions -c conftest.c"
+  echo "$progname:914: checking if $compiler supports -fno-rtti -fno-exceptions" >&5
+  if { (eval echo $progname:915: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; } && test -s conftest.o; then
+
+    # The compiler can only warn and ignore the option if not recognized
+    # So say no if there are warnings
+      if test -s conftest.err; then
+       echo "$ac_t"no 1>&6
+       compiler_rtti_exceptions=no
+      else
+       echo "$ac_t"yes 1>&6
+       compiler_rtti_exceptions=yes
+      fi
+  else
+    # Append any errors to the config.log.
+    cat conftest.err 1>&5
+    compiler_rtti_exceptions=no
+    echo "$ac_t"no 1>&6
+  fi
+  CFLAGS="$save_CFLAGS"
+  $rm conftest*
+
+  if test "$compiler_rtti_exceptions" = "yes"; then
+    no_builtin_flag=' -fno-builtin -fno-rtti -fno-exceptions'
+  else
+    no_builtin_flag=' -fno-builtin'
+  fi
+  
+fi
+
+# Check for any special shared library compilation flags.
+if test -n "$special_shlib_compile_flags"; then
+  echo "$progname: warning: \`$CC' requires \`$special_shlib_compile_flags' to build shared libraries" 1>&2
+  if echo "$old_CC $old_CFLAGS " | egrep -e "[         ]$special_shlib_compile_flags[  ]" >/dev/null; then :
+  else
+    echo "$progname: add \`$special_shlib_compile_flags' to the CC or CFLAGS env variable and reconfigure" 1>&2
+    can_build_shared=no
+  fi
+fi
+
+echo $ac_n "checking if $compiler static flag $link_static_flag works... $ac_c" 1>&6
+$rm conftest*
+echo 'main(){return(0);}' > conftest.c
+save_LDFLAGS="$LDFLAGS"
+LDFLAGS="$LDFLAGS $link_static_flag"
+echo "$progname:958: checking if $compiler static flag $link_static_flag works" >&5
+if { (eval echo $progname:959: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+  echo "$ac_t$link_static_flag" 1>&6
+else
+  echo "$ac_t"none 1>&6
+  link_static_flag=
+fi
+LDFLAGS="$save_LDFLAGS"
+$rm conftest*
+
+if test -z "$LN_S"; then
+  # Check to see if we can use ln -s, or we need hard links.
+  echo $ac_n "checking whether ln -s works... $ac_c" 1>&6
+  $rm conftest.dat
+  if ln -s X conftest.dat 2>/dev/null; then
+    $rm conftest.dat
+    LN_S="ln -s"
+  else
+    LN_S=ln
+  fi
+  if test "$LN_S" = "ln -s"; then
+    echo "$ac_t"yes 1>&6
+  else
+    echo "$ac_t"no 1>&6
+  fi
+fi
+
+# Make sure LD is an absolute path.
+if test -z "$LD"; then
+  ac_prog=ld
+  if test "$with_gcc" = yes; then
+    # Check if gcc -print-prog-name=ld gives a path.
+    echo $ac_n "checking for ld used by GCC... $ac_c" 1>&6
+    echo "$progname:991: checking for ld used by GCC" >&5
+    ac_prog=`($CC -print-prog-name=ld) 2>&5`
+    case "$ac_prog" in
+    # Accept absolute paths.
+    [\\/]* | [A-Za-z]:[\\/]*)
+      re_direlt='/[^/][^/]*/\.\./'
+      # Canonicalize the path of ld
+      ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
+      while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
+       ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
+      done
+      test -z "$LD" && LD="$ac_prog"
+      ;;
+    "")
+      # If it fails, then pretend we are not using GCC.
+      ac_prog=ld
+      ;;
+    *)
+      # If it is relative, then search for the first ld in PATH.
+      with_gnu_ld=unknown
+      ;;
+    esac
+  elif test "$with_gnu_ld" = yes; then
+    echo $ac_n "checking for GNU ld... $ac_c" 1>&6
+    echo "$progname:1015: checking for GNU ld" >&5
+  else
+    echo $ac_n "checking for non-GNU ld""... $ac_c" 1>&6
+    echo "$progname:1018: checking for non-GNU ld" >&5
+  fi
+
+  if test -z "$LD"; then
+    IFS="${IFS=        }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR}"
+    for ac_dir in $PATH; do
+      test -z "$ac_dir" && ac_dir=.
+      if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+       LD="$ac_dir/$ac_prog"
+       # Check to see if the program is GNU ld.  I'd rather use --version,
+       # but apparently some GNU ld's only accept -v.
+       # Break only if it was the GNU/non-GNU ld that we prefer.
+       if "$LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then
+         test "$with_gnu_ld" != no && break
+       else
+         test "$with_gnu_ld" != yes && break
+       fi
+      fi
+    done
+    IFS="$ac_save_ifs"
+  fi
+
+  if test -n "$LD"; then
+    echo "$ac_t$LD" 1>&6
+  else
+    echo "$ac_t"no 1>&6
+  fi
+
+  if test -z "$LD"; then
+    echo "$progname: error: no acceptable ld found in \$PATH" 1>&2
+    exit 1
+  fi
+fi
+
+# Check to see if it really is or is not GNU ld.
+echo $ac_n "checking if the linker ($LD) is GNU ld... $ac_c" 1>&6
+# I'd rather use --version here, but apparently some GNU ld's only accept -v.
+if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
+  with_gnu_ld=yes
+else
+  with_gnu_ld=no
+fi
+echo "$ac_t$with_gnu_ld" 1>&6
+
+# See if the linker supports building shared libraries.
+echo $ac_n "checking whether the linker ($LD) supports shared libraries... $ac_c" 1>&6
+
+allow_undefined_flag=
+no_undefined_flag=
+need_lib_prefix=unknown
+need_version=unknown
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+archive_cmds=
+archive_expsym_cmds=
+old_archive_from_new_cmds=
+export_dynamic_flag_spec=
+whole_archive_flag_spec=
+thread_safe_flag_spec=
+hardcode_libdir_flag_spec=
+hardcode_libdir_separator=
+hardcode_direct=no
+hardcode_minus_L=no
+hardcode_shlibpath_var=unsupported
+runpath_var=
+always_export_symbols=no
+export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | sed '\''s/.* //'\'' | sort | uniq > $export_symbols'
+# include_expsyms should be a list of space-separated symbols to be *always*
+# included in the symbol list
+include_expsyms=
+# exclude_expsyms can be an egrep regular expression of symbols to exclude
+# it will be wrapped by ` (' and `)$', so one must not match beginning or
+# end of line.  Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc',
+# as well as any symbol that contains `d'.
+exclude_expsyms="_GLOBAL_OFFSET_TABLE_"
+# Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
+# platforms (ab)use it in PIC code, but their linkers get confused if
+# the symbol is explicitly referenced.  Since portable code cannot
+# rely on this symbol name, it's probably fine to never include it in
+# preloaded symbol tables.
+
+case "$host_os" in
+cygwin* | mingw*)
+  # FIXME: the MSVC++ port hasn't been tested in a loooong time
+  # When not using gcc, we currently assume that we are using
+  # Microsoft Visual C++.
+  if test "$with_gcc" != yes; then
+    with_gnu_ld=no
+  fi
+  ;;
+
+esac
+
+ld_shlibs=yes
+if test "$with_gnu_ld" = yes; then
+  # If archive_cmds runs LD, not CC, wlarc should be empty
+  wlarc='${wl}'
+
+  # See if GNU ld supports shared libraries.
+  case "$host_os" in
+  aix3* | aix4*)
+    # On AIX, the GNU linker is very broken
+    ld_shlibs=no
+    cat <<EOF 1>&2
+
+*** Warning: the GNU linker, at least up to release 2.9.1, is reported
+*** to be unable to reliably create shared libraries on AIX.
+*** Therefore, libtool is disabling shared libraries support.  If you
+*** really care for shared libraries, you may want to modify your PATH
+*** so that a non-GNU linker is found, and then restart.
+
+EOF
+    ;;
+
+  amigaos*)
+    archive_cmds='$rm $objdir/a2ixlibrary.data~$echo "#define NAME $libname" > $objdir/a2ixlibrary.data~$echo "#define LIBRARY_ID 1" >> $objdir/a2ixlibrary.data~$echo "#define VERSION $major" >> $objdir/a2ixlibrary.data~$echo "#define REVISION $revision" >> $objdir/a2ixlibrary.data~$AR cru $lib $libobjs~$RANLIB $lib~(cd $objdir && a2ixlibrary -32)'
+    hardcode_libdir_flag_spec='-L$libdir'
+    hardcode_minus_L=yes
+
+    # Samuel A. Falvo II <kc5tja@dolphin.openprojects.net> reports
+    # that the semantics of dynamic libraries on AmigaOS, at least up
+    # to version 4, is to share data among multiple programs linked
+    # with the same dynamic library.  Since this doesn't match the
+    # behavior of shared libraries on other platforms, we can use
+    # them.
+    ld_shlibs=no
+    ;;
+
+  beos*)
+    if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
+      allow_undefined_flag=unsupported
+      # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
+      # support --undefined.  This deserves some investigation.  FIXME
+      archive_cmds='$CC -nostart $libobjs $deplibs $linkopts ${wl}-soname $wl$soname -o $lib'
+    else
+      ld_shlibs=no
+    fi
+    ;;
+
+  cygwin* | mingw*)
+    # hardcode_libdir_flag_spec is actually meaningless, as there is
+    # no search path for DLLs.
+    hardcode_libdir_flag_spec='-L$libdir'
+    allow_undefined_flag=unsupported
+    always_export_symbols=yes
+
+    # Extract the symbol export list from an `--export-all' def file,
+    # then regenerate the def file from the symbol export list, so that
+    # the compiled dll only exports the symbol export list.
+    # Be careful not to strip the DATA tag left by newer dlltools.
+    export_symbols_cmds='test -f $objdir/$soname-ltdll.c || sed -e "/^# \/\* ltdll\.c starts here \*\//,/^# \/\* ltdll.c ends here \*\// { s/^# //; p; }" -e d < $0 > $objdir/$soname-ltdll.c~
+      test -f $objdir/$soname-ltdll.$objext || (cd $objdir && $CC -c $soname-ltdll.c)~
+      $DLLTOOL --export-all --exclude-symbols DllMain@12,_cygwin_dll_entry@12,_cygwin_noncygwin_dll_entry@12 --output-def $objdir/$soname-def  $objdir/$soname-ltdll.$objext $libobjs $convenience~
+      sed -e "1,/EXPORTS/d" -e "s/ @ [0-9]*//" -e "s/ *;.*$//" < $objdir/$soname-def > $export_symbols'
+
+    # If DATA tags from a recent dlltool are present, honour them!
+    archive_expsym_cmds='echo EXPORTS > $objdir/$soname-def~
+      _lt_hint=1;
+      cat $export_symbols | while read symbol; do
+        set dummy \$symbol;
+        case \$# in
+          2) echo "    \$2 @ \$_lt_hint ; " >> $objdir/$soname-def;;
+          *) echo "     \$2 @ \$_lt_hint \$3 ; " >> $objdir/$soname-def;;
+        esac;
+       _lt_hint=`expr 1 + \$_lt_hint`;
+      done~
+      test -f $objdir/$soname-ltdll.c || sed -e "/^# \/\* ltdll\.c starts here \*\//,/^# \/\* ltdll.c ends here \*\// { s/^# //; p; }" -e d < $0 > $objdir/$soname-ltdll.c~
+      test -f $objdir/$soname-ltdll.$objext || (cd $objdir && $CC -c $soname-ltdll.c)~
+      $CC -Wl,--base-file,$objdir/$soname-base -Wl,--dll -nostartfiles -Wl,-e,__cygwin_dll_entry@12 -o $lib $objdir/$soname-ltdll.$objext $libobjs $deplibs $linkopts~
+      $DLLTOOL --as=$AS --dllname $soname --exclude-symbols DllMain@12,_cygwin_dll_entry@12,_cygwin_noncygwin_dll_entry@12 --def $objdir/$soname-def --base-file $objdir/$soname-base --output-exp $objdir/$soname-exp~
+      $CC -Wl,--base-file,$objdir/$soname-base $objdir/$soname-exp -Wl,--dll -nostartfiles -Wl,-e,__cygwin_dll_entry@12 -o $lib $objdir/$soname-ltdll.$objext $libobjs $deplibs $linkopts~
+      $DLLTOOL --as=$AS --dllname $soname --exclude-symbols DllMain@12,_cygwin_dll_entry@12,_cygwin_noncygwin_dll_entry@12 --def $objdir/$soname-def --base-file $objdir/$soname-base --output-exp $objdir/$soname-exp~
+      $CC $objdir/$soname-exp -Wl,--dll -nostartfiles -Wl,-e,__cygwin_dll_entry@12 -o $lib $objdir/$soname-ltdll.$objext $libobjs $deplibs $linkopts'
+
+      old_archive_from_new_cmds='$DLLTOOL --as=$AS --dllname $soname --def $objdir/$soname-def --output-lib $objdir/$libname.a' 
+    ;;
+
+  netbsd*)
+    if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
+      archive_cmds='$CC -shared $libobjs $deplibs $linkopts ${wl}-soname $wl$soname -o $lib'
+      archive_expsym_cmds='$CC -shared $libobjs $deplibs $linkopts ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+    else
+      archive_cmds='$LD -Bshareable $libobjs $deplibs $linkopts -o $lib'
+      # can we support soname and/or expsyms with a.out? -oliva
+    fi
+    ;;
+
+  solaris* | sysv5*)
+    if $LD -v 2>&1 | egrep 'BFD 2\.8' > /dev/null; then
+      ld_shlibs=no
+      cat <<EOF 1>&2
+
+*** Warning: The releases 2.8.* of the GNU linker cannot reliably
+*** create shared libraries on Solaris systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.9.1 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+EOF
+    elif $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
+      archive_cmds='$CC -shared $libobjs $deplibs $linkopts ${wl}-soname $wl$soname -o $lib'
+      archive_expsym_cmds='$CC -shared $libobjs $deplibs $linkopts ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+    else
+      ld_shlibs=no
+    fi
+    ;;      
+
+  sunos4*)
+    archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linkopts'
+    wlarc=
+    hardcode_direct=yes
+    hardcode_shlibpath_var=no
+    ;;
+
+  *)
+    if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
+      archive_cmds='$CC -shared $libobjs $deplibs $linkopts ${wl}-soname $wl$soname -o $lib'
+      archive_expsym_cmds='$CC -shared $libobjs $deplibs $linkopts ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+    else
+      ld_shlibs=no
+    fi
+    ;;
+  esac
+
+  if test "$ld_shlibs" = yes; then
+    runpath_var=LD_RUN_PATH
+    hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
+    export_dynamic_flag_spec='${wl}--export-dynamic'
+    case $host_os in
+    cygwin* | mingw*)
+      # dlltool doesn't understand --whole-archive et. al.
+      whole_archive_flag_spec=
+      ;;
+    *)
+      # ancient GNU ld didn't support --whole-archive et. al.
+      if $LD --help 2>&1 | egrep 'no-whole-archive' > /dev/null; then
+        whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+      else
+        whole_archive_flag_spec=
+      fi
+      ;;
+    esac
+  fi
+else
+  # PORTME fill in a description of your system's linker (not GNU ld)
+  case "$host_os" in
+  aix3*)
+    allow_undefined_flag=unsupported
+    always_export_symbols=yes
+    archive_expsym_cmds='$LD -o $objdir/$soname $libobjs $deplibs $linkopts -bE:$export_symbols -T512 -H512 -bM:SRE~$AR cru $lib $objdir/$soname'
+    # Note: this linker hardcodes the directories in LIBPATH if there
+    # are no directories specified by -L.
+    hardcode_minus_L=yes
+    if test "$with_gcc" = yes && test -z "$link_static_flag"; then
+      # Neither direct hardcoding nor static linking is supported with a
+      # broken collect2.
+      hardcode_direct=unsupported
+    fi
+    ;;
+
+  aix4*)
+    hardcode_libdir_flag_spec='${wl}-b ${wl}nolibpath ${wl}-b ${wl}libpath:$libdir:/usr/lib:/lib'
+    hardcode_libdir_separator=':'
+    if test "$with_gcc" = yes; then
+      collect2name=`${CC} -print-prog-name=collect2`
+      if test -f "$collect2name" && \
+        strings "$collect2name" | grep resolve_lib_name >/dev/null
+      then
+       # We have reworked collect2
+       hardcode_direct=yes
+      else
+       # We have old collect2
+       hardcode_direct=unsupported
+       # It fails to find uninstalled libraries when the uninstalled
+       # path is not listed in the libpath.  Setting hardcode_minus_L
+       # to unsupported forces relinking
+       hardcode_minus_L=yes
+       hardcode_libdir_flag_spec='-L$libdir'
+       hardcode_libdir_separator=
+      fi
+      shared_flag='-shared'
+    else
+      shared_flag='${wl}-bM:SRE'
+      hardcode_direct=yes
+    fi
+    allow_undefined_flag=' ${wl}-berok'
+    archive_cmds="\$CC $shared_flag"' -o $objdir/$soname $libobjs $deplibs $linkopts ${wl}-bexpall ${wl}-bnoentry${allow_undefined_flag}'
+    archive_expsym_cmds="\$CC $shared_flag"' -o $objdir/$soname $libobjs $deplibs $linkopts ${wl}-bE:$export_symbols ${wl}-bnoentry${allow_undefined_flag}'
+    case "$host_os" in aix4.[01]|aix4.[01].*)
+      # According to Greg Wooledge, -bexpall is only supported from AIX 4.2 on
+      always_export_symbols=yes ;;
+    esac
+   ;;
+
+  amigaos*)
+    archive_cmds='$rm $objdir/a2ixlibrary.data~$echo "#define NAME $libname" > $objdir/a2ixlibrary.data~$echo "#define LIBRARY_ID 1" >> $objdir/a2ixlibrary.data~$echo "#define VERSION $major" >> $objdir/a2ixlibrary.data~$echo "#define REVISION $revision" >> $objdir/a2ixlibrary.data~$AR cru $lib $libobjs~$RANLIB $lib~(cd $objdir && a2ixlibrary -32)'
+    hardcode_libdir_flag_spec='-L$libdir'
+    hardcode_minus_L=yes
+    # see comment about different semantics on the GNU ld section
+    ld_shlibs=no
+    ;;
+
+  cygwin* | mingw*)
+    # When not using gcc, we currently assume that we are using
+    # Microsoft Visual C++.
+    # hardcode_libdir_flag_spec is actually meaningless, as there is
+    # no search path for DLLs.
+    hardcode_libdir_flag_spec=' '
+    allow_undefined_flag=unsupported
+    # Tell ltmain to make .lib files, not .a files.
+    libext=lib
+    # FIXME: Setting linknames here is a bad hack.
+    archive_cmds='$CC -o $lib $libobjs $linkopts `echo "$deplibs" | sed -e '\''s/ -lc$//'\''` -link -dll~linknames='
+    # The linker will automatically build a .lib file if we build a DLL.
+    old_archive_from_new_cmds='true'
+    # FIXME: Should let the user specify the lib program.
+    old_archive_cmds='lib /OUT:$oldlib$oldobjs'
+    fix_srcfile_path='`cygpath -w $srcfile`'
+    ;;
+
+  freebsd1*)
+    ld_shlibs=no
+    ;;
+
+  # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
+  # support.  Future versions do this automatically, but an explicit c++rt0.o
+  # does not break anything, and helps significantly (at the cost of a little
+  # extra space).
+  freebsd2.2*)
+    archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linkopts /usr/lib/c++rt0.o'
+    hardcode_libdir_flag_spec='-R$libdir'
+    hardcode_direct=yes
+    hardcode_shlibpath_var=no
+    ;;
+
+  # Unfortunately, older versions of FreeBSD 2 do not have this feature.
+  freebsd2*)
+    archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linkopts'
+    hardcode_direct=yes
+    hardcode_minus_L=yes
+    hardcode_shlibpath_var=no
+    ;;
+
+  # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
+  freebsd*)
+    archive_cmds='$CC -shared -o $lib $libobjs $deplibs $linkopts'
+    hardcode_libdir_flag_spec='-R$libdir'
+    hardcode_direct=yes
+    hardcode_shlibpath_var=no
+    ;;
+
+  hpux9* | hpux10* | hpux11*)
+    case "$host_os" in
+    hpux9*) archive_cmds='$rm $objdir/$soname~$LD -b +b $install_libdir -o $objdir/$soname $libobjs $deplibs $linkopts~test $objdir/$soname = $lib || mv $objdir/$soname $lib' ;;
+    *) archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linkopts' ;;
+    esac
+    hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+    hardcode_libdir_separator=:
+    hardcode_direct=yes
+    hardcode_minus_L=yes # Not in the search PATH, but as the default
+                        # location of the library.
+    export_dynamic_flag_spec='${wl}-E'
+    ;;
+
+  irix5* | irix6*)
+    if test "$with_gcc" = yes; then
+      archive_cmds='$CC -shared $libobjs $deplibs $linkopts ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
+    else
+      archive_cmds='$LD -shared $libobjs $deplibs $linkopts -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
+    fi
+    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+    hardcode_libdir_separator=:
+    ;;
+
+  netbsd*)
+    if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
+      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linkopts'  # a.out
+    else
+      archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linkopts'      # ELF
+    fi
+    hardcode_libdir_flag_spec='${wl}-R$libdir'
+    hardcode_direct=yes
+    hardcode_shlibpath_var=no
+    ;;
+
+  openbsd*)
+    archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linkopts'
+    hardcode_libdir_flag_spec='-R$libdir'
+    hardcode_direct=yes
+    hardcode_shlibpath_var=no
+    ;;
+
+  os2*)
+    hardcode_libdir_flag_spec='-L$libdir'
+    hardcode_minus_L=yes
+    allow_undefined_flag=unsupported
+    archive_cmds='$echo "LIBRARY $libname INITINSTANCE" > $objdir/$libname.def~$echo "DESCRIPTION \"$libname\"" >> $objdir/$libname.def~$echo DATA >> $objdir/$libname.def~$echo " SINGLE NONSHARED" >> $objdir/$libname.def~$echo EXPORTS >> $objdir/$libname.def~emxexp $libobjs >> $objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $linkopts $objdir/$libname.def'
+    old_archive_from_new_cmds='emximp -o $objdir/$libname.a $objdir/$libname.def'
+    ;;
+
+  osf3*)
+    if test "$with_gcc" = yes; then
+      allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
+      archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $linkopts ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
+    else
+      allow_undefined_flag=' -expect_unresolved \*'
+      archive_cmds='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linkopts -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
+    fi
+    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+    hardcode_libdir_separator=:
+    ;;
+
+  osf4* | osf5*)  # As osf3* with the addition of the -msym flag
+    if test "$with_gcc" = yes; then
+      allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
+      archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $linkopts ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
+    else
+      allow_undefined_flag=' -expect_unresolved \*'
+      archive_cmds='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linkopts -msym -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
+    fi
+    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+    hardcode_libdir_separator=:
+    ;;
+  rhapsody*)
+    archive_cmds='$CC -bundle -undefined suppress -o $lib $libobjs $deplibs $linkopts'
+    hardcode_libdir_flags_spec='-L$libdir'
+    hardcode_direct=yes
+    hardcode_shlibpath_var=no
+    ;;
+                                       
+  sco3.2v5*)
+    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linkopts'
+    hardcode_shlibpath_var=no
+    runpath_var=LD_RUN_PATH
+    hardcode_runpath_var=yes
+    ;;
+
+  solaris*)
+    no_undefined_flag=' -z text'
+    # $CC -shared without GNU ld will not create a library from C++
+    # object files and a static libstdc++, better avoid it by now
+    archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linkopts'
+    archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+               $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linkopts~$rm $lib.exp'
+    hardcode_libdir_flag_spec='-R$libdir'
+    hardcode_shlibpath_var=no
+    case "$host_os" in
+    solaris2.[0-5] | solaris2.[0-5].*) ;;
+    *) # Supported since Solaris 2.6 (maybe 2.5.1?)
+      whole_archive_flag_spec='-z allextract$convenience -z defaultextract' ;;
+    esac
+    ;;
+
+  sunos4*)
+    archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linkopts'
+    hardcode_libdir_flag_spec='-L$libdir'
+    hardcode_direct=yes
+    hardcode_minus_L=yes
+    hardcode_shlibpath_var=no
+    ;;
+
+  sysv4)
+    if test "x$host_vendor" = xsequent; then
+      # Use $CC to link under sequent, because it throws in some extra .o 
+      # files that make .init and .fini sections work.
+      archive_cmds='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $linkopts'
+    else
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linkopts'
+    fi
+    runpath_var='LD_RUN_PATH'
+    hardcode_shlibpath_var=no
+    hardcode_direct=no #Motorola manual says yes, but my tests say they lie 
+    ;;  
+
+  sysv4.3*)
+    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linkopts'
+    hardcode_shlibpath_var=no
+    export_dynamic_flag_spec='-Bexport'
+    ;;
+
+  sysv5*)
+    no_undefined_flag=' -z text'
+    # $CC -shared without GNU ld will not create a library from C++
+    # object files and a static libstdc++, better avoid it by now
+    archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linkopts'
+    archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+               $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linkopts~$rm $lib.exp'
+    hardcode_libdir_flag_spec=
+    hardcode_shlibpath_var=no
+    runpath_var='LD_RUN_PATH'
+    ;;
+
+  uts4*)
+    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linkopts'
+    hardcode_libdir_flag_spec='-L$libdir'
+    hardcode_shlibpath_var=no
+    ;;
+
+  dgux*)
+    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linkopts'
+    hardcode_libdir_flag_spec='-L$libdir'
+    hardcode_shlibpath_var=no
+    ;;
+
+  sysv4*MP*)
+    if test -d /usr/nec; then
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linkopts'
+      hardcode_shlibpath_var=no
+      runpath_var=LD_RUN_PATH
+      hardcode_runpath_var=yes
+      ld_shlibs=yes
+    fi
+    ;;
+
+  sysv4.2uw2*)
+    archive_cmds='$LD -G -o $lib $libobjs $deplibs $linkopts'
+    hardcode_direct=yes
+    hardcode_minus_L=no
+    hardcode_shlibpath_var=no
+    hardcode_runpath_var=yes
+    runpath_var=LD_RUN_PATH
+    ;;
+
+  unixware7*)
+    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linkopts'
+    runpath_var='LD_RUN_PATH'
+    hardcode_shlibpath_var=no
+    ;;
+
+  *)
+    ld_shlibs=no
+    ;;
+  esac
+fi
+echo "$ac_t$ld_shlibs" 1>&6
+test "$ld_shlibs" = no && can_build_shared=no
+
+if test -z "$NM"; then
+  echo $ac_n "checking for BSD-compatible nm... $ac_c" 1>&6
+  case "$NM" in
+  [\\/]* | [A-Za-z]:[\\/]*) ;; # Let the user override the test with a path.
+  *)
+    IFS="${IFS=        }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR}"
+    for ac_dir in $PATH /usr/ucb /usr/ccs/bin /bin; do
+      test -z "$ac_dir" && ac_dir=.
+      if test -f $ac_dir/nm || test -f $ac_dir/nm$ac_exeext; then
+       # Check to see if the nm accepts a BSD-compat flag.
+       # Adding the `sed 1q' prevents false positives on HP-UX, which says:
+       #   nm: unknown option "B" ignored
+       if ($ac_dir/nm -B /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
+         NM="$ac_dir/nm -B"
+         break
+       elif ($ac_dir/nm -p /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
+         NM="$ac_dir/nm -p"
+         break
+       else
+         NM=${NM="$ac_dir/nm"} # keep the first match, but
+         continue # so that we can try to find one that supports BSD flags
+       fi
+      fi
+    done
+    IFS="$ac_save_ifs"
+    test -z "$NM" && NM=nm
+    ;;
+  esac
+  echo "$ac_t$NM" 1>&6
+fi
+
+# Check for command to grab the raw symbol name followed by C symbol from nm.
+echo $ac_n "checking command to parse $NM output... $ac_c" 1>&6
+
+# These are sane defaults that work on at least a few old systems.
+# [They come from Ultrix.  What could be older than Ultrix?!! ;)]
+
+# Character class describing NM global symbol codes.
+symcode='[BCDEGRST]'
+
+# Regexp to match symbols that can be accessed directly from C.
+sympat='\([_A-Za-z][_A-Za-z0-9]*\)'
+
+# Transform the above into a raw symbol and a C symbol.
+symxfrm='\1 \2\3 \3'
+
+# Transform an extracted symbol line into a proper C declaration
+global_symbol_to_cdecl="sed -n -e 's/^. .* \(.*\)$/extern char \1;/p'"
+
+# Define system-specific variables.
+case "$host_os" in
+aix*)
+  symcode='[BCDT]'
+  ;;
+cygwin* | mingw*)
+  symcode='[ABCDGISTW]'
+  ;;
+hpux*) # Its linker distinguishes data from code symbols
+  global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern char \1();/p' -e 's/^. .* \(.*\)$/extern char \1;/p'"
+  ;;
+irix*)
+  symcode='[BCDEGRST]'
+  ;;
+solaris*)
+  symcode='[BDT]'
+  ;;
+sysv4)
+  symcode='[DFNSTU]'
+  ;;
+esac
+
+# If we're using GNU nm, then use its standard symbol codes.
+if $NM -V 2>&1 | egrep '(GNU|with BFD)' > /dev/null; then
+  symcode='[ABCDGISTW]'
+fi
+
+# Try without a prefix undercore, then with it.
+for ac_symprfx in "" "_"; do
+
+  # Write the raw and C identifiers.
+  global_symbol_pipe="sed -n -e 's/^.*[        ]\($symcode\)[  ][      ]*\($ac_symprfx\)$sympat$/$symxfrm/p'"
+
+  # Check to see that the pipe works correctly.
+  pipe_works=no
+  $rm conftest*
+  cat > conftest.c <<EOF
+#ifdef __cplusplus
+extern "C" {
+#endif
+char nm_test_var;
+void nm_test_func(){}
+#ifdef __cplusplus
+}
+#endif
+main(){nm_test_var='a';nm_test_func();return(0);}
+EOF
+
+  echo "$progname:1653: checking if global_symbol_pipe works" >&5
+  if { (eval echo $progname:1654: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; } && test -s conftest.$objext; then
+    # Now try to grab the symbols.
+    nlist=conftest.nm
+    if { echo "$progname:1657: eval \"$NM conftest.$objext | $global_symbol_pipe > $nlist\"" >&5; eval "$NM conftest.$objext | $global_symbol_pipe > $nlist 2>&5"; } && test -s "$nlist"; then
+
+      # Try sorting and uniquifying the output.
+      if sort "$nlist" | uniq > "$nlist"T; then
+       mv -f "$nlist"T "$nlist"
+      else
+       rm -f "$nlist"T
+      fi
+
+      # Make sure that we snagged all the symbols we need.
+      if egrep ' nm_test_var$' "$nlist" >/dev/null; then
+       if egrep ' nm_test_func$' "$nlist" >/dev/null; then
+         cat <<EOF > conftest.c
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+EOF
+         # Now generate the symbol file.
+         eval "$global_symbol_to_cdecl"' < "$nlist" >> conftest.c'
+
+         cat <<EOF >> conftest.c
+#if defined (__STDC__) && __STDC__
+# define lt_ptr_t void *
+#else
+# define lt_ptr_t char *
+# define const
+#endif
+
+/* The mapping between symbol names and symbols. */
+const struct {
+  const char *name;
+  lt_ptr_t address;
+}
+lt_preloaded_symbols[] =
+{
+EOF
+         sed 's/^. \(.*\) \(.*\)$/  {"\2", (lt_ptr_t) \&\2},/' < "$nlist" >> conftest.c
+         cat <<\EOF >> conftest.c
+  {0, (lt_ptr_t) 0}
+};
+
+#ifdef __cplusplus
+}
+#endif
+EOF
+         # Now try linking the two files.
+         mv conftest.$objext conftstm.$objext
+         save_LIBS="$LIBS"
+         save_CFLAGS="$CFLAGS"
+         LIBS="conftstm.$objext"
+         CFLAGS="$CFLAGS$no_builtin_flag"
+         if { (eval echo $progname:1709: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+           pipe_works=yes
+         else
+           echo "$progname: failed program was:" >&5
+           cat conftest.c >&5
+         fi
+         LIBS="$save_LIBS"
+       else
+         echo "cannot find nm_test_func in $nlist" >&5
+       fi
+      else
+       echo "cannot find nm_test_var in $nlist" >&5
+      fi
+    else
+      echo "cannot run $global_symbol_pipe" >&5
+    fi
+  else
+    echo "$progname: failed program was:" >&5
+    cat conftest.c >&5
+  fi
+  $rm conftest* conftst*
+
+  # Do not use the global_symbol_pipe unless it works.
+  if test "$pipe_works" = yes; then
+    break
+  else
+    global_symbol_pipe=
+  fi
+done
+if test "$pipe_works" = yes; then
+  echo "${ac_t}ok" 1>&6
+else
+  echo "${ac_t}failed" 1>&6
+fi
+
+if test -z "$global_symbol_pipe"; then
+  global_symbol_to_cdecl=
+fi
+
+# Check hardcoding attributes.
+echo $ac_n "checking how to hardcode library paths into programs... $ac_c" 1>&6
+hardcode_action=
+if test -n "$hardcode_libdir_flag_spec" || \
+   test -n "$runpath_var"; then
+
+  # We can hardcode non-existant directories.
+  if test "$hardcode_direct" != no &&
+     # If the only mechanism to avoid hardcoding is shlibpath_var, we
+     # have to relink, otherwise we might link with an installed library
+     # when we should be linking with a yet-to-be-installed one
+     ## test "$hardcode_shlibpath_var" != no &&
+     test "$hardcode_minus_L" != no; then
+    # Linking always hardcodes the temporary library directory.
+    hardcode_action=relink
+  else
+    # We can link without hardcoding, and we can hardcode nonexisting dirs.
+    hardcode_action=immediate
+  fi
+else
+  # We cannot hardcode anything, or else we can only hardcode existing
+  # directories.
+  hardcode_action=unsupported
+fi
+echo "$ac_t$hardcode_action" 1>&6
+
+
+reload_flag=
+reload_cmds='$LD$reload_flag -o $output$reload_objs'
+echo $ac_n "checking for $LD option to reload object files... $ac_c" 1>&6
+# PORTME Some linkers may need a different reload flag.
+reload_flag='-r'
+echo "$ac_t$reload_flag" 1>&6
+test -n "$reload_flag" && reload_flag=" $reload_flag"
+
+# PORTME Fill in your ld.so characteristics
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+file_magic_cmd=
+file_magic_test_file=
+deplibs_check_method='unknown'
+# Need to set the preceding variable on all platforms that support
+# interlibrary dependencies.
+# 'none' -- dependencies not supported.
+# `unknown' -- same as none, but documents that we really don't know.
+# 'pass_all' -- all dependencies passed with no checks.
+# 'test_compile' -- check by making test program.
+# 'file_magic [regex]' -- check by looking for files in library path
+# which responds to the $file_magic_cmd with a given egrep regex.
+# If you have `file' or equivalent on your system and you're not sure
+# whether `pass_all' will *always* work, you probably want this one.
+echo $ac_n "checking dynamic linker characteristics... $ac_c" 1>&6
+case "$host_os" in
+aix3*)
+  version_type=linux
+  library_names_spec='${libname}${release}.so$versuffix $libname.a'
+  shlibpath_var=LIBPATH
+
+  # AIX has no versioning support, so we append a major version to the name.
+  soname_spec='${libname}${release}.so$major'
+  ;;
+
+aix4*)
+  version_type=linux
+  # AIX has no versioning support, so currently we can not hardcode correct
+  # soname into executable. Probably we can add versioning support to
+  # collect2, so additional links can be useful in future.
+  # We preserve .a as extension for shared libraries though AIX4.2
+  # and later linker supports .so
+  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.a'
+  shlibpath_var=LIBPATH
+  deplibs_check_method=pass_all
+  ;;
+
+amigaos*)
+  library_names_spec='$libname.ixlibrary $libname.a'
+  # Create ${libname}_ixlibrary.a entries in /sys/libs.
+  finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`$echo "X$lib" | $Xsed -e '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; test $rm /sys/libs/${libname}_ixlibrary.a; $show "(cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a)"; (cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a) || exit 1; done'
+  ;;
+
+beos*)
+  library_names_spec='${libname}.so'
+  dynamic_linker="$host_os ld.so"
+  shlibpath_var=LIBRARY_PATH
+  deplibs_check_method=pass_all
+  lt_cv_dlopen="load_add_on"
+  lt_cv_dlopen_libs=
+  lt_cv_dlopen_self=yes
+  ;;
+
+bsdi4*)
+  version_type=linux
+  need_version=no
+  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
+  soname_spec='${libname}${release}.so$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)'
+  file_magic_cmd=/usr/bin/file
+  file_magic_test_file=/shlib/libc.so
+  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+  export_dynamic_flag_spec=-rdynamic
+  # the default ld.so.conf also contains /usr/contrib/lib and
+  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+  # libtool to hard-code these into programs
+  ;;
+
+cygwin* | mingw*)
+  version_type=windows
+  need_version=no
+  need_lib_prefix=no
+  if test "$with_gcc" = yes; then
+    library_names_spec='${libname}`echo ${release} | sed -e 's/[.]/-/g'`${versuffix}.dll $libname.a'
+  else
+    library_names_spec='${libname}`echo ${release} | sed -e 's/[.]/-/g'`${versuffix}.dll $libname.lib'
+  fi
+  dynamic_linker='Win32 ld.exe'
+  deplibs_check_method='file_magic file format pei*-i386(.*architecture: i386)?'
+  file_magic_cmd='${OBJDUMP} -f'
+  # FIXME: first we should search . and the directory the executable is in
+  shlibpath_var=PATH
+  lt_cv_dlopen="LoadLibrary"
+  lt_cv_dlopen_libs=
+  ;;
+
+freebsd1*)
+  dynamic_linker=no
+  ;;
+  
+freebsd*)
+  objformat=`test -x /usr/bin/objformat && /usr/bin/objformat || echo aout`
+  version_type=freebsd-$objformat
+  case "$version_type" in
+    freebsd-elf*)
+      deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB shared object'
+      file_magic_cmd=/usr/bin/file
+      file_magic_test_file=`echo /usr/lib/libc.so*`
+      library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so $libname.so'
+      need_version=no
+      need_lib_prefix=no
+      ;;
+    freebsd-*)
+      deplibs_check_method=unknown
+      library_names_spec='${libname}${release}.so$versuffix $libname.so$versuffix'
+      need_version=yes
+      ;;
+  esac
+  shlibpath_var=LD_LIBRARY_PATH
+  case "$host_os" in
+  freebsd2* | freebsd3.[01]* | freebsdelf3.[01]*)
+    shlibpath_overrides_runpath=yes
+    ;;
+  *) # from 3.2 on
+    shlibpath_overrides_runpath=no
+    ;;
+  esac
+  ;;
+
+gnu*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so${major} ${libname}.so'
+  soname_spec='${libname}${release}.so$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+hpux9* | hpux10* | hpux11*)
+  # Give a soname corresponding to the major version so that dld.sl refuses to
+  # link against other versions.
+  dynamic_linker="$host_os dld.sl"
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  shlibpath_var=SHLIB_PATH
+  shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+  library_names_spec='${libname}${release}.sl$versuffix ${libname}${release}.sl$major $libname.sl'
+  soname_spec='${libname}${release}.sl$major'
+  # HP-UX runs *really* slowly unless shared libraries are mode 555.
+  postinstall_cmds='chmod 555 $lib'
+  case "$host_os" in
+  hpux10.20*)
+    # TODO:  Does this work for hpux-11 too?
+    deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9].[0-9]) shared library'
+    file_magic_cmd=/usr/bin/file
+    file_magic_test_file=/usr/lib/libc.sl
+    ;;
+  esac
+  ;;
+
+irix5* | irix6*)
+  version_type=irix
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}.so.$major'
+  library_names_spec='${libname}${release}.so.$versuffix ${libname}${release}.so.$major ${libname}${release}.so $libname.so'
+  case "$host_os" in
+  irix5*)
+    libsuff= shlibsuff=
+    # this will be overridden with pass_all, but let us keep it just in case
+    deplibs_check_method="file_magic ELF 32-bit MSB dynamic lib MIPS - version 1"
+    ;;
+  *)
+    case "$LD" in # libtool.m4 will add one of these switches to LD
+    *-32|*"-32 ") libsuff= shlibsuff= libmagic=32-bit;;
+    *-n32|*"-n32 ") libsuff=32 shlibsuff=N32 libmagic=N32;;
+    *-64|*"-64 ") libsuff=64 shlibsuff=64 libmagic=64-bit;;
+    *) libsuff= shlibsuff= libmagic=never-match;;
+    esac
+    ;;
+  esac
+  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
+  sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
+  file_magic_cmd=/usr/bin/file
+  file_magic_test_file=`echo /lib${libsuff}/libc.so*`
+  deplibs_check_method='pass_all'
+  ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux-gnuoldld* | linux-gnuaout* | linux-gnucoff*)
+  dynamic_linker=no
+  ;;
+
+# This must be Linux ELF.
+linux-gnu*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
+  soname_spec='${libname}${release}.so$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  deplibs_check_method=pass_all
+
+  if test -f /lib/ld.so.1; then
+    dynamic_linker='GNU ld.so'
+  else
+    # Only the GNU ld.so supports shared libraries on MkLinux.
+    case "$host_cpu" in
+    powerpc*) dynamic_linker=no ;;
+    *) dynamic_linker='Linux ld.so' ;;
+    esac
+  fi
+  ;;
+
+netbsd*)
+  version_type=sunos
+  if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
+    library_names_spec='${libname}${release}.so$versuffix ${libname}.so$versuffix'
+    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+    dynamic_linker='NetBSD (a.out) ld.so'
+  else
+    library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major ${libname}${release}.so ${libname}.so'
+    soname_spec='${libname}${release}.so$major'
+    dynamic_linker='NetBSD ld.elf_so'
+  fi
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+openbsd*)
+  version_type=sunos
+  if test "$with_gnu_ld" = yes; then
+    need_lib_prefix=no
+    need_version=no
+  fi
+  library_names_spec='${libname}${release}.so$versuffix ${libname}.so$versuffix'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+os2*)
+  libname_spec='$name'
+  need_lib_prefix=no
+  library_names_spec='$libname.dll $libname.a'
+  dynamic_linker='OS/2 ld.exe'
+  shlibpath_var=LIBPATH
+  ;;
+
+osf3* | osf4* | osf5*)
+  version_type=osf
+  need_version=no
+  soname_spec='${libname}${release}.so'
+  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so $libname.so'
+  shlibpath_var=LD_LIBRARY_PATH
+  # this will be overridden with pass_all, but let us keep it just in case
+  deplibs_check_method='file_magic COFF format alpha shared library'
+  file_magic_cmd=/usr/bin/file
+  file_magic_test_file=/shlib/libc.so
+  deplibs_check_method='pass_all'
+  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+  sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
+  ;;
+
+rhapsody*)
+  version_type=sunos
+  library_names_spec='${libname}.so'
+  soname_spec='${libname}.so'
+  shlibpath_var=DYLD_LIBRARY_PATH
+  deplibs_check_method=pass_all
+  ;;
+
+sco3.2v5*)
+  version_type=osf
+  soname_spec='${libname}${release}.so$major'
+  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+solaris*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
+  soname_spec='${libname}${release}.so$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  # ldd complains unless libraries are executable
+  postinstall_cmds='chmod +x $lib'
+  deplibs_check_method="file_magic ELF [0-9][0-9]-bit [LM]SB dynamic lib"
+  file_magic_cmd=/usr/bin/file
+  file_magic_test_file=/lib/libc.so
+  ;;
+
+sunos4*)
+  version_type=sunos
+  library_names_spec='${libname}${release}.so$versuffix ${libname}.so$versuffix'
+  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  if test "$with_gnu_ld" = yes; then
+    need_lib_prefix=no
+  fi
+  need_version=yes
+  ;;
+
+sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+  version_type=linux
+  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
+  soname_spec='${libname}${release}.so$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  case "$host_vendor" in
+    sequent)
+      file_magic_cmd='/bin/file'
+      deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )'
+      ;;
+    ncr)
+      deplibs_check_method='pass_all'
+      ;;
+    motorola)
+      need_lib_prefix=no
+      need_version=no
+      shlibpath_overrides_runpath=no
+      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+      deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]'
+      file_magic_cmd=/usr/bin/file
+      file_magic_test_file=`echo /usr/lib/libc.so*`
+      ;;
+  esac
+  ;;
+
+uts4*)
+  version_type=linux
+  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
+  soname_spec='${libname}${release}.so$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+dgux*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
+  soname_spec='${libname}${release}.so$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+sysv4*MP*)
+  if test -d /usr/nec ;then
+    version_type=linux
+    library_names_spec='$libname.so.$versuffix $libname.so.$major $libname.so'
+    soname_spec='$libname.so.$major'
+    shlibpath_var=LD_LIBRARY_PATH
+  fi
+  ;;
+
+*)
+  dynamic_linker=no
+  ;;
+esac
+echo "$ac_t$dynamic_linker" 1>&6
+test "$dynamic_linker" = no && can_build_shared=no
+
+# Report the final consequences.
+echo "checking if libtool supports shared libraries... $can_build_shared" 1>&6
+
+# Only try to build win32 dlls if AC_LIBTOOL_WIN32_DLL was used in
+# configure.in, otherwise build static only libraries.
+case "$host_os" in
+cygwin* | mingw* | os2*)
+  if test x$can_build_shared = xyes; then
+    test x$enable_win32_dll = xno && can_build_shared=no
+    echo "checking if package supports dlls... $can_build_shared" 1>&6
+  fi
+;;
+esac
+
+if test -n "$file_magic_test_file" && test -n "$file_magic_cmd"; then
+  case "$deplibs_check_method" in
+  "file_magic "*)
+    file_magic_regex="`expr \"$deplibs_check_method\" : \"file_magic \(.*\)\"`"
+    if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+       egrep "$file_magic_regex" > /dev/null; then
+      :
+    else
+      cat <<EOF 1>&2
+
+*** Warning: the command libtool uses to detect shared libraries,
+*** $file_magic_cmd, produces output that libtool cannot recognize.
+*** The result is that libtool may fail to recognize shared libraries
+*** as such.  This will affect the creation of libtool libraries that
+*** depend on shared libraries, but programs linked with such libtool
+*** libraries will work regardless of this problem.  Nevertheless, you
+*** may want to report the problem to your system manager and/or to
+*** bug-libtool@gnu.org
+
+EOF
+    fi ;;
+  esac
+fi
+
+echo $ac_n "checking whether to build shared libraries... $ac_c" 1>&6
+test "$can_build_shared" = "no" && enable_shared=no
+
+# On AIX, shared libraries and static libraries use the same namespace, and
+# are all built from PIC.
+case "$host_os" in
+aix3*)
+  test "$enable_shared" = yes && enable_static=no
+  if test -n "$RANLIB"; then
+    archive_cmds="$archive_cmds~\$RANLIB \$lib"
+    postinstall_cmds='$RANLIB $lib'
+  fi
+  ;;
+
+aix4*)
+  test "$enable_shared" = yes && enable_static=no
+  ;;
+esac
+
+echo "$ac_t$enable_shared" 1>&6
+
+# Make sure either enable_shared or enable_static is yes.
+test "$enable_shared" = yes || enable_static=yes
+
+echo "checking whether to build static libraries... $enable_static" 1>&6
+
+if test "$hardcode_action" = relink; then
+  # Fast installation is not supported
+  enable_fast_install=no
+elif test "$shlibpath_overrides_runpath" = yes ||
+     test "$enable_shared" = no; then
+  # Fast installation is not necessary
+  enable_fast_install=needless
+fi
+
+echo $ac_n "checking for objdir... $ac_c" 1>&6
+rm -f .libs 2>/dev/null
+mkdir .libs 2>/dev/null
+if test -d .libs; then
+  objdir=.libs
+else
+  # MS-DOS does not allow filenames that begin with a dot.
+  objdir=_libs
+fi
+rmdir .libs 2>/dev/null
+echo "$ac_t$objdir" 1>&6
+
+if test "x$enable_dlopen" != xyes; then
+  enable_dlopen=unknown
+  enable_dlopen_self=unknown
+  enable_dlopen_self_static=unknown
+else
+if eval "test \"`echo '$''{'lt_cv_dlopen'+set}'`\" != set"; then
+  lt_cv_dlopen=no lt_cv_dlopen_libs=
+echo $ac_n "checking for dlopen in -ldl""... $ac_c" 1>&6
+echo "$progname:2248: checking for dlopen in -ldl" >&5
+ac_lib_var=`echo dl'_'dlopen | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_save_LIBS="$LIBS"
+LIBS="-ldl  $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 2256 "ltconfig"
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen();
+
+int main() {
+dlopen()
+; return 0; }
+EOF
+if { (eval echo $progname:2269: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=yes"
+else
+  echo "$progname: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"
+else
+  echo "$ac_t""no" 1>&6
+echo $ac_n "checking for dlopen""... $ac_c" 1>&6
+echo "$progname:2288: checking for dlopen" >&5
+if eval "test \"`echo '$''{'ac_cv_func_dlopen'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 2293 "ltconfig"
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char dlopen(); below.  */
+#include <assert.h>
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen();
+
+int main() {
+
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_dlopen) || defined (__stub___dlopen)
+choke me
+#else
+dlopen();
+#endif
+
+; return 0; }
+EOF
+if { (eval echo $progname:2318: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_func_dlopen=yes"
+else
+  echo "$progname: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_func_dlopen=no"
+fi
+rm -f conftest*
+fi
+if eval "test \"`echo '$ac_cv_func_'dlopen`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  lt_cv_dlopen="dlopen"
+else
+  echo "$ac_t""no" 1>&6
+echo $ac_n "checking for dld_link in -ldld""... $ac_c" 1>&6
+echo "$progname:2335: checking for dld_link in -ldld" >&5
+ac_lib_var=`echo dld'_'dld_link | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_save_LIBS="$LIBS"
+LIBS="-ldld  $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 2343 "ltconfig"
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dld_link();
+
+int main() {
+dld_link()
+; return 0; }
+EOF
+if { (eval echo $progname:2356: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=yes"
+else
+  echo "$progname: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-ldld"
+else
+  echo "$ac_t""no" 1>&6
+echo $ac_n "checking for shl_load""... $ac_c" 1>&6
+echo "$progname:2375: checking for shl_load" >&5
+if eval "test \"`echo '$''{'ac_cv_func_shl_load'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 2380 "ltconfig"
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char shl_load(); below.  */
+#include <assert.h>
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char shl_load();
+
+int main() {
+
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_shl_load) || defined (__stub___shl_load)
+choke me
+#else
+shl_load();
+#endif
+
+; return 0; }
+EOF
+if { (eval echo $progname:2405: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_func_shl_load=yes"
+else
+  echo "$progname: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_func_shl_load=no"
+fi
+rm -f conftest*
+fi
+
+if eval "test \"`echo '$ac_cv_func_'shl_load`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  lt_cv_dlopen="shl_load"
+else
+  echo "$ac_t""no" 1>&6
+echo $ac_n "checking for shl_load in -ldld""... $ac_c" 1>&6
+echo "$progname:2423: checking for shl_load in -ldld" >&5
+ac_lib_var=`echo dld'_'shl_load | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_save_LIBS="$LIBS"
+LIBS="-ldld  $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 2431 "ltconfig"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char shl_load();
+
+int main() {
+shl_load()
+; return 0; }
+EOF
+if { (eval echo $progname:2445: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=yes"
+else
+  echo "$progname: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-ldld"
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+
+fi
+
+    
+fi
+
+  
+fi
+
+
+fi
+
+fi
+
+  if test "x$lt_cv_dlopen" != xno; then
+    enable_dlopen=yes
+  fi
+
+  case "$lt_cv_dlopen" in
+  dlopen)
+for ac_hdr in dlfcn.h; do
+ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
+echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
+echo "$progname:2488: checking for $ac_hdr" >&5
+if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 2493 "ltconfig"
+#include <$ac_hdr>
+int fnord = 0;
+EOF
+ac_try="$ac_compile >/dev/null 2>conftest.out"
+{ (eval echo $progname:2498: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
+if test -z "$ac_err"; then
+  rm -rf conftest*
+  eval "ac_cv_header_$ac_safe=yes"
+else
+  echo "$ac_err" >&5
+  echo "$progname: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_header_$ac_safe=no"
+fi
+rm -f conftest*
+fi
+if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+done
+
+    if test "x$ac_cv_header_dlfcn_h" = xyes; then
+      CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
+    fi
+    eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
+    LIBS="$lt_cv_dlopen_libs $LIBS"
+
+  echo $ac_n "checking whether a program can dlopen itself""... $ac_c" 1>&6
+echo "$progname:2526: checking whether a program can dlopen itself" >&5
+if test "${lt_cv_dlopen_self+set}" = set; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test "$cross_compiling" = yes; then
+    lt_cv_dlopen_self=cross
+  else
+    cat > conftest.c <<EOF
+#line 2534 "ltconfig"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+# define LTDL_GLOBAL   RTLD_GLOBAL
+#else
+# ifdef DL_GLOBAL
+#  define LTDL_GLOBAL  DL_GLOBAL
+# else
+#  define LTDL_GLOBAL  0
+# endif
+#endif
+
+/* We may have to define LTDL_LAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LTDL_LAZY_OR_NOW
+# ifdef RTLD_LAZY
+#  define LTDL_LAZY_OR_NOW     RTLD_LAZY
+# else
+#  ifdef DL_LAZY
+#   define LTDL_LAZY_OR_NOW    DL_LAZY
+#  else
+#   ifdef RTLD_NOW
+#    define LTDL_LAZY_OR_NOW   RTLD_NOW
+#   else
+#    ifdef DL_NOW
+#     define LTDL_LAZY_OR_NOW  DL_NOW
+#    else
+#     define LTDL_LAZY_OR_NOW  0
+#    endif
+#   endif
+#  endif
+# endif
+#endif
+
+fnord() { int i=42;}
+main() { void *self, *ptr1, *ptr2; self=dlopen(0,LTDL_GLOBAL|LTDL_LAZY_OR_NOW);
+    if(self) { ptr1=dlsym(self,"fnord"); ptr2=dlsym(self,"_fnord");
+              if(ptr1 || ptr2) { dlclose(self); exit(0); } } exit(1); } 
+
+EOF
+if { (eval echo $progname:2580: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
+then
+  lt_cv_dlopen_self=yes
+else
+  echo "$progname: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -fr conftest*
+  lt_cv_dlopen_self=no
+fi
+rm -fr conftest*
+fi
+
+fi
+
+echo "$ac_t""$lt_cv_dlopen_self" 1>&6
+
+  if test "$lt_cv_dlopen_self" = yes; then
+    LDFLAGS="$LDFLAGS $link_static_flag"
+  echo $ac_n "checking whether a statically linked program can dlopen itself""... $ac_c" 1>&6
+echo "$progname:2599: checking whether a statically linked program can dlopen itself" >&5
+if test "${lt_cv_dlopen_self_static+set}" = set; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test "$cross_compiling" = yes; then
+    lt_cv_dlopen_self_static=cross
+  else
+    cat > conftest.c <<EOF
+#line 2607 "ltconfig"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+# define LTDL_GLOBAL   RTLD_GLOBAL
+#else
+# ifdef DL_GLOBAL
+#  define LTDL_GLOBAL  DL_GLOBAL
+# else
+#  define LTDL_GLOBAL  0
+# endif
+#endif
+
+/* We may have to define LTDL_LAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LTDL_LAZY_OR_NOW
+# ifdef RTLD_LAZY
+#  define LTDL_LAZY_OR_NOW     RTLD_LAZY
+# else
+#  ifdef DL_LAZY
+#   define LTDL_LAZY_OR_NOW    DL_LAZY
+#  else
+#   ifdef RTLD_NOW
+#    define LTDL_LAZY_OR_NOW   RTLD_NOW
+#   else
+#    ifdef DL_NOW
+#     define LTDL_LAZY_OR_NOW  DL_NOW
+#    else
+#     define LTDL_LAZY_OR_NOW  0
+#    endif
+#   endif
+#  endif
+# endif
+#endif
+
+fnord() { int i=42;}
+main() { void *self, *ptr1, *ptr2; self=dlopen(0,LTDL_GLOBAL|LTDL_LAZY_OR_NOW);
+    if(self) { ptr1=dlsym(self,"fnord"); ptr2=dlsym(self,"_fnord");
+    if(ptr1 || ptr2) { dlclose(self); exit(0); } } exit(1); } 
+
+EOF
+if { (eval echo $progname:2653: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
+then
+  lt_cv_dlopen_self_static=yes
+else
+  echo "$progname: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -fr conftest*
+  lt_cv_dlopen_self_static=no
+fi
+rm -fr conftest*
+fi
+
+fi
+
+echo "$ac_t""$lt_cv_dlopen_self_static" 1>&6
+fi
+    ;;
+  esac
+
+  case "$lt_cv_dlopen_self" in
+  yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
+  *) enable_dlopen_self=unknown ;;
+  esac
+
+  case "$lt_cv_dlopen_self_static" in
+  yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
+  *) enable_dlopen_self_static=unknown ;;
+  esac
+fi
+
+# Copy echo and quote the copy, instead of the original, because it is
+# used later.
+ltecho="$echo"
+if test "X$ltecho" = "X$CONFIG_SHELL $0 --fallback-echo"; then
+   ltecho="$CONFIG_SHELL \$0 --fallback-echo"
+fi
+LTSHELL="$SHELL"
+
+LTCONFIG_VERSION="$VERSION"
+
+# Only quote variables if we're using ltmain.sh.
+case "$ltmain" in
+*.sh)
+  # Now quote all the things that may contain metacharacters.
+  for var in ltecho old_CC old_CFLAGS old_CPPFLAGS \
+    old_LD old_LDFLAGS old_LIBS \
+    old_NM old_RANLIB old_LN_S old_DLLTOOL old_OBJDUMP old_AS \
+    AR CC LD LN_S NM LTSHELL LTCONFIG_VERSION \
+    reload_flag reload_cmds wl \
+    pic_flag link_static_flag no_builtin_flag export_dynamic_flag_spec \
+    thread_safe_flag_spec whole_archive_flag_spec libname_spec \
+    library_names_spec soname_spec \
+    RANLIB old_archive_cmds old_archive_from_new_cmds old_postinstall_cmds \
+    old_postuninstall_cmds archive_cmds archive_expsym_cmds postinstall_cmds postuninstall_cmds \
+    file_magic_cmd export_symbols_cmds deplibs_check_method allow_undefined_flag no_undefined_flag \
+    finish_cmds finish_eval global_symbol_pipe global_symbol_to_cdecl \
+    hardcode_libdir_flag_spec hardcode_libdir_separator  \
+    sys_lib_search_path_spec sys_lib_dlsearch_path_spec \
+    compiler_c_o compiler_o_lo need_locks exclude_expsyms include_expsyms; do
+
+    case "$var" in
+    reload_cmds | old_archive_cmds | old_archive_from_new_cmds | \
+    old_postinstall_cmds | old_postuninstall_cmds | \
+    export_symbols_cmds | archive_cmds | archive_expsym_cmds | \
+    postinstall_cmds | postuninstall_cmds | \
+    finish_cmds | sys_lib_search_path_spec | sys_lib_dlsearch_path_spec)
+      # Double-quote double-evaled strings.
+      eval "$var=\\\"\`\$echo \"X\$$var\" | \$Xsed -e \"\$double_quote_subst\" -e \"\$sed_quote_subst\" -e \"\$delay_variable_subst\"\`\\\""
+      ;;
+    *)
+      eval "$var=\\\"\`\$echo \"X\$$var\" | \$Xsed -e \"\$sed_quote_subst\"\`\\\""
+      ;;
+    esac
+  done
+
+  case "$ltecho" in
+  *'\$0 --fallback-echo"')
+    ltecho=`$echo "X$ltecho" | $Xsed -e 's/\\\\\\\$0 --fallback-echo"$/$0 --fallback-echo"/'`
+    ;;
+  esac
+
+  trap "$rm \"$ofile\"; exit 1" 1 2 15
+  echo "creating $ofile"
+  $rm "$ofile"
+  cat <<EOF > "$ofile"
+#! $SHELL
+
+# `$echo "$ofile" | sed 's%^.*/%%'` - Provide generalized library-building support services.
+# Generated automatically by $PROGRAM (GNU $PACKAGE $VERSION$TIMESTAMP)
+# NOTE: Changes made to this file will be lost: look at ltconfig or ltmain.sh.
+#
+# Copyright (C) 1996-1999 Free Software Foundation, Inc.
+# Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# Sed that helps us avoid accidentally triggering echo(1) options like -n.
+Xsed="sed -e s/^X//"
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+if test "X\${CDPATH+set}" = Xset; then CDPATH=:; export CDPATH; fi
+
+### BEGIN LIBTOOL CONFIG
+EOF
+  cfgfile="$ofile"
+  ;;
+
+*)
+  # Double-quote the variables that need it (for aesthetics).
+  for var in old_CC old_CFLAGS old_CPPFLAGS \
+    old_LD old_LDFLAGS old_LIBS \
+    old_NM old_RANLIB old_LN_S old_DLLTOOL old_OBJDUMP old_AS; do
+    eval "$var=\\\"\$var\\\""
+  done
+
+  # Just create a config file.
+  cfgfile="$ofile.cfg"
+  trap "$rm \"$cfgfile\"; exit 1" 1 2 15
+  echo "creating $cfgfile"
+  $rm "$cfgfile"
+  cat <<EOF > "$cfgfile"
+# `$echo "$cfgfile" | sed 's%^.*/%%'` - Libtool configuration file.
+# Generated automatically by $PROGRAM (GNU $PACKAGE $VERSION$TIMESTAMP)
+EOF
+  ;;
+esac
+
+cat <<EOF >> "$cfgfile"
+# Libtool was configured as follows, on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
+#
+# CC=$old_CC CFLAGS=$old_CFLAGS CPPFLAGS=$old_CPPFLAGS \\
+# LD=$old_LD LDFLAGS=$old_LDFLAGS LIBS=$old_LIBS \\
+# NM=$old_NM RANLIB=$old_RANLIB LN_S=$old_LN_S \\
+# DLLTOOL=$old_DLLTOOL OBJDUMP=$old_OBJDUMP AS=$old_AS \\
+#   $0$ltconfig_args
+#
+# Compiler and other test output produced by $progname, useful for
+# debugging $progname, is in ./config.log if it exists.
+
+# The version of $progname that generated this script.
+LTCONFIG_VERSION=$LTCONFIG_VERSION
+
+# Shell to use when invoking shell scripts.
+SHELL=$LTSHELL
+
+# Whether or not to build shared libraries.
+build_libtool_libs=$enable_shared
+
+# Whether or not to build static libraries.
+build_old_libs=$enable_static
+
+# Whether or not to optimize for fast installation.
+fast_install=$enable_fast_install
+
+# The host system.
+host_alias=$host_alias
+host=$host
+
+# An echo program that does not interpret backslashes.
+echo=$ltecho
+
+# The archiver.
+AR=$AR
+
+# The default C compiler.
+CC=$CC
+
+# The linker used to build libraries.
+LD=$LD
+
+# Whether we need hard or soft links.
+LN_S=$LN_S
+
+# A BSD-compatible nm program.
+NM=$NM
+
+# Used on cygwin: DLL creation program.
+DLLTOOL="$DLLTOOL"
+
+# Used on cygwin: object dumper.
+OBJDUMP="$OBJDUMP"
+
+# Used on cygwin: assembler.
+AS="$AS"
+
+# The name of the directory that contains temporary libtool files.
+objdir=$objdir
+
+# How to create reloadable object files.
+reload_flag=$reload_flag
+reload_cmds=$reload_cmds
+
+# How to pass a linker flag through the compiler.
+wl=$wl
+
+# Object file suffix (normally "o").
+objext="$objext"
+
+# Old archive suffix (normally "a").
+libext="$libext"
+
+# Executable file suffix (normally "").
+exeext="$exeext"
+
+# Additional compiler flags for building library objects.
+pic_flag=$pic_flag
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o=$compiler_c_o
+
+# Can we write directly to a .lo ?
+compiler_o_lo=$compiler_o_lo
+
+# Must we lock files when doing compilation ?
+need_locks=$need_locks
+
+# Do we need the lib prefix for modules?
+need_lib_prefix=$need_lib_prefix
+
+# Do we need a version for libraries?
+need_version=$need_version
+
+# Whether dlopen is supported.
+dlopen=$enable_dlopen
+
+# Whether dlopen of programs is supported.
+dlopen_self=$enable_dlopen_self
+
+# Whether dlopen of statically linked programs is supported.
+dlopen_self_static=$enable_dlopen_self_static
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag=$link_static_flag
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=$no_builtin_flag
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec=$export_dynamic_flag_spec
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec=$whole_archive_flag_spec
+
+# Compiler flag to generate thread-safe objects.
+thread_safe_flag_spec=$thread_safe_flag_spec
+
+# Library versioning type.
+version_type=$version_type
+
+# Format of library name prefix.
+libname_spec=$libname_spec
+
+# List of archive names.  First name is the real one, the rest are links.
+# The last name is the one that the linker finds with -lNAME.
+library_names_spec=$library_names_spec
+
+# The coded name of the library, if different from the real name.
+soname_spec=$soname_spec
+
+# Commands used to build and install an old-style archive.
+RANLIB=$RANLIB
+old_archive_cmds=$old_archive_cmds
+old_postinstall_cmds=$old_postinstall_cmds
+old_postuninstall_cmds=$old_postuninstall_cmds
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=$old_archive_from_new_cmds
+
+# Commands used to build and install a shared archive.
+archive_cmds=$archive_cmds
+archive_expsym_cmds=$archive_expsym_cmds
+postinstall_cmds=$postinstall_cmds
+postuninstall_cmds=$postuninstall_cmds
+
+# Method to check whether dependent libraries are shared objects.
+deplibs_check_method=$deplibs_check_method
+
+# Command to use when deplibs_check_method == file_magic.
+file_magic_cmd=$file_magic_cmd
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=$allow_undefined_flag
+
+# Flag that forces no undefined symbols.
+no_undefined_flag=$no_undefined_flag
+
+# Commands used to finish a libtool library installation in a directory.
+finish_cmds=$finish_cmds
+
+# Same as above, but a single script fragment to be evaled but not shown.
+finish_eval=$finish_eval
+
+# Take the output of nm and produce a listing of raw symbols and C names.
+global_symbol_pipe=$global_symbol_pipe
+
+# Transform the output of nm in a proper C declaration
+global_symbol_to_cdecl=$global_symbol_to_cdecl
+
+# This is the shared library runtime path variable.
+runpath_var=$runpath_var
+
+# This is the shared library path variable.
+shlibpath_var=$shlibpath_var
+
+# Is shlibpath searched before the hard-coded library search path?
+shlibpath_overrides_runpath=$shlibpath_overrides_runpath
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=$hardcode_action
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist.
+hardcode_libdir_flag_spec=$hardcode_libdir_flag_spec
+
+# Whether we need a single -rpath flag with a separated argument.
+hardcode_libdir_separator=$hardcode_libdir_separator
+
+# Set to yes if using DIR/libNAME.so during linking hardcodes DIR into the
+# resulting binary.
+hardcode_direct=$hardcode_direct
+
+# Set to yes if using the -LDIR flag during linking hardcodes DIR into the
+# resulting binary.
+hardcode_minus_L=$hardcode_minus_L
+
+# Set to yes if using SHLIBPATH_VAR=DIR during linking hardcodes DIR into
+# the resulting binary.
+hardcode_shlibpath_var=$hardcode_shlibpath_var
+
+# Compile-time system search path for libraries
+sys_lib_search_path_spec=$sys_lib_search_path_spec
+
+# Run-time system search path for libraries
+sys_lib_dlsearch_path_spec=$sys_lib_dlsearch_path_spec
+
+# Fix the shell variable \$srcfile for the compiler.
+fix_srcfile_path="$fix_srcfile_path"
+
+# Set to yes if exported symbols are required.
+always_export_symbols=$always_export_symbols
+
+# The commands to list exported symbols.
+export_symbols_cmds=$export_symbols_cmds
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms=$exclude_expsyms
+
+# Symbols that must always be exported.
+include_expsyms=$include_expsyms
+
+EOF
+
+case "$ltmain" in
+*.sh)
+  echo '### END LIBTOOL CONFIG' >> "$ofile"
+  echo >> "$ofile"
+  case "$host_os" in
+  aix3*)
+    cat <<\EOF >> "$ofile"
+
+# AIX sometimes has problems with the GCC collect2 program.  For some
+# reason, if we set the COLLECT_NAMES environment variable, the problems
+# vanish in a puff of smoke.
+if test "X${COLLECT_NAMES+set}" != Xset; then
+  COLLECT_NAMES=
+  export COLLECT_NAMES
+fi
+EOF
+    ;;
+  esac
+
+  # Append the ltmain.sh script.
+  sed '$q' "$ltmain" >> "$ofile" || (rm -f "$ofile"; exit 1)
+  # We use sed instead of cat because bash on DJGPP gets confused if
+  # if finds mixed CR/LF and LF-only lines.  Since sed operates in
+  # text mode, it properly converts lines to CR/LF.  This bash problem
+  # is reportedly fixed, but why not run on old versions too?
+
+  chmod +x "$ofile"
+  ;;
+
+*)
+  # Compile the libtool program.
+  echo "FIXME: would compile $ltmain"
+  ;;
+esac
+
+test -n "$cache_file" || exit 0
+
+# AC_CACHE_SAVE
+trap '' 1 2 15
+cat > confcache <<\EOF
+# This file is a shell script that caches the results of configure
+# tests run on this system so they can be shared between configure
+# scripts and configure runs.  It is not useful on other systems.
+# If it contains results you don't want to keep, you may remove or edit it.
+#
+# By default, configure uses ./config.cache as the cache file,
+# creating it if it does not exist already.  You can give configure
+# the --cache-file=FILE option to use a different cache file; that is
+# what configure does when it calls configure scripts in
+# subdirectories, so they share the cache.
+# Giving --cache-file=/dev/null disables caching, for debugging configure.
+# config.status only pays attention to the cache file if you give it the
+# --recheck option to rerun configure.
+#
+EOF
+# The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, don't put newlines in cache variables' values.
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
+(set) 2>&1 |
+  case `(ac_space=' '; set | grep ac_space) 2>&1` in
+  *ac_space=\ *)
+    # `set' does not quote correctly, so add quotes (double-quote substitution
+    # turns \\\\ into \\, and sed turns \\ into \).
+    sed -n \
+      -e "s/'/'\\\\''/g" \
+      -e "s/^\\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\\)=\\(.*\\)/\\1=\${\\1='\\2'}/p"
+    ;;
+  *)
+    # `set' quotes correctly as required by POSIX, so do not add quotes.
+    sed -n -e 's/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=${\1=\2}/p'
+    ;;
+  esac >> confcache
+if cmp -s $cache_file confcache; then
+  :
+else
+  if test -w $cache_file; then
+    echo "updating cache $cache_file"
+    cat confcache > $cache_file
+  else
+    echo "not updating unwritable cache $cache_file"
+  fi
+fi
+rm -f confcache
+
+exit 0
+
+# Local Variables:
+# mode:shell-script
+# sh-indentation:2
+# End:
diff --git a/ltmain.sh b/ltmain.sh
new file mode 100644 (file)
index 0000000..c8c38c2
--- /dev/null
+++ b/ltmain.sh
@@ -0,0 +1,5064 @@
+# ltmain.sh - Provide generalized library-building support services.
+# NOTE: Changing this file will not affect anything until you rerun configure.
+#
+# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001
+# Free Software Foundation, Inc.
+# Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# Check that we have a working $echo.
+if test "X$1" = X--no-reexec; then
+  # Discard the --no-reexec flag, and continue.
+  shift
+elif test "X$1" = X--fallback-echo; then
+  # Avoid inline document here, it may be left over
+  :
+elif test "X`($echo '\t') 2>/dev/null`" = 'X\t'; then
+  # Yippee, $echo works!
+  :
+else
+  # Restart under the correct shell, and then maybe $echo will work.
+  exec $SHELL "$0" --no-reexec ${1+"$@"}
+fi
+
+if test "X$1" = X--fallback-echo; then
+  # used as fallback echo
+  shift
+  cat <<EOF
+$*
+EOF
+  exit 0
+fi
+
+# The name of this program.
+progname=`$echo "$0" | sed 's%^.*/%%'`
+modename="$progname"
+
+# Constants.
+PROGRAM=ltmain.sh
+PACKAGE=libtool
+VERSION=1.4.2
+TIMESTAMP=" (1.922.2.54 2001/09/11 03:33:37)"
+
+default_mode=
+help="Try \`$progname --help' for more information."
+magic="%%%MAGIC variable%%%"
+mkdir="mkdir"
+mv="mv -f"
+rm="rm -f"
+
+# Sed substitution that helps us do robust quoting.  It backslashifies
+# metacharacters that are still active within double-quoted strings.
+Xsed='sed -e 1s/^X//'
+sed_quote_subst='s/\([\\`\\"$\\\\]\)/\\\1/g'
+SP2NL='tr \040 \012'
+NL2SP='tr \015\012 \040\040'
+
+# NLS nuisances.
+# Only set LANG and LC_ALL to C if already set.
+# These must not be set unconditionally because not all systems understand
+# e.g. LANG=C (notably SCO).
+# We save the old values to restore during execute mode.
+if test "${LC_ALL+set}" = set; then
+  save_LC_ALL="$LC_ALL"; LC_ALL=C; export LC_ALL
+fi
+if test "${LANG+set}" = set; then
+  save_LANG="$LANG"; LANG=C; export LANG
+fi
+
+# Make sure IFS has a sensible default
+: ${IFS="      "}
+
+if test "$build_libtool_libs" != yes && test "$build_old_libs" != yes; then
+  echo "$modename: not configured to build any kind of library" 1>&2
+  echo "Fatal configuration error.  See the $PACKAGE docs for more information." 1>&2
+  exit 1
+fi
+
+# Global variables.
+mode=$default_mode
+nonopt=
+prev=
+prevopt=
+run=
+show="$echo"
+show_help=
+execute_dlfiles=
+lo2o="s/\\.lo\$/.${objext}/"
+o2lo="s/\\.${objext}\$/.lo/"
+
+# Parse our command line options once, thoroughly.
+while test $# -gt 0
+do
+  arg="$1"
+  shift
+
+  case $arg in
+  -*=*) optarg=`$echo "X$arg" | $Xsed -e 's/[-_a-zA-Z0-9]*=//'` ;;
+  *) optarg= ;;
+  esac
+
+  # If the previous option needs an argument, assign it.
+  if test -n "$prev"; then
+    case $prev in
+    execute_dlfiles)
+      execute_dlfiles="$execute_dlfiles $arg"
+      ;;
+    *)
+      eval "$prev=\$arg"
+      ;;
+    esac
+
+    prev=
+    prevopt=
+    continue
+  fi
+
+  # Have we seen a non-optional argument yet?
+  case $arg in
+  --help)
+    show_help=yes
+    ;;
+
+  --version)
+    echo "$PROGRAM (GNU $PACKAGE) $VERSION$TIMESTAMP"
+    exit 0
+    ;;
+
+  --config)
+    sed -e '1,/^# ### BEGIN LIBTOOL CONFIG/d' -e '/^# ### END LIBTOOL CONFIG/,$d' $0
+    exit 0
+    ;;
+
+  --debug)
+    echo "$progname: enabling shell trace mode"
+    set -x
+    ;;
+
+  --dry-run | -n)
+    run=:
+    ;;
+
+  --features)
+    echo "host: $host"
+    if test "$build_libtool_libs" = yes; then
+      echo "enable shared libraries"
+    else
+      echo "disable shared libraries"
+    fi
+    if test "$build_old_libs" = yes; then
+      echo "enable static libraries"
+    else
+      echo "disable static libraries"
+    fi
+    exit 0
+    ;;
+
+  --finish) mode="finish" ;;
+
+  --mode) prevopt="--mode" prev=mode ;;
+  --mode=*) mode="$optarg" ;;
+
+  --preserve-dup-deps) duplicate_deps="yes" ;;
+
+  --quiet | --silent)
+    show=:
+    ;;
+
+  -dlopen)
+    prevopt="-dlopen"
+    prev=execute_dlfiles
+    ;;
+
+  -*)
+    $echo "$modename: unrecognized option \`$arg'" 1>&2
+    $echo "$help" 1>&2
+    exit 1
+    ;;
+
+  *)
+    nonopt="$arg"
+    break
+    ;;
+  esac
+done
+
+if test -n "$prevopt"; then
+  $echo "$modename: option \`$prevopt' requires an argument" 1>&2
+  $echo "$help" 1>&2
+  exit 1
+fi
+
+# If this variable is set in any of the actions, the command in it
+# will be execed at the end.  This prevents here-documents from being
+# left over by shells.
+exec_cmd=
+
+if test -z "$show_help"; then
+
+  # Infer the operation mode.
+  if test -z "$mode"; then
+    case $nonopt in
+    *cc | *++ | gcc* | *-gcc*)
+      mode=link
+      for arg
+      do
+       case $arg in
+       -c)
+          mode=compile
+          break
+          ;;
+       esac
+      done
+      ;;
+    *db | *dbx | *strace | *truss)
+      mode=execute
+      ;;
+    *install*|cp|mv)
+      mode=install
+      ;;
+    *rm)
+      mode=uninstall
+      ;;
+    *)
+      # If we have no mode, but dlfiles were specified, then do execute mode.
+      test -n "$execute_dlfiles" && mode=execute
+
+      # Just use the default operation mode.
+      if test -z "$mode"; then
+       if test -n "$nonopt"; then
+         $echo "$modename: warning: cannot infer operation mode from \`$nonopt'" 1>&2
+       else
+         $echo "$modename: warning: cannot infer operation mode without MODE-ARGS" 1>&2
+       fi
+      fi
+      ;;
+    esac
+  fi
+
+  # Only execute mode is allowed to have -dlopen flags.
+  if test -n "$execute_dlfiles" && test "$mode" != execute; then
+    $echo "$modename: unrecognized option \`-dlopen'" 1>&2
+    $echo "$help" 1>&2
+    exit 1
+  fi
+
+  # Change the help message to a mode-specific one.
+  generic_help="$help"
+  help="Try \`$modename --help --mode=$mode' for more information."
+
+  # These modes are in order of execution frequency so that they run quickly.
+  case $mode in
+  # libtool compile mode
+  compile)
+    modename="$modename: compile"
+    # Get the compilation command and the source file.
+    base_compile=
+    prev=
+    lastarg=
+    srcfile="$nonopt"
+    suppress_output=
+
+    user_target=no
+    for arg
+    do
+      case $prev in
+      "") ;;
+      xcompiler)
+       # Aesthetically quote the previous argument.
+       prev=
+       lastarg=`$echo "X$arg" | $Xsed -e "$sed_quote_subst"`
+
+       case $arg in
+       # Double-quote args containing other shell metacharacters.
+       # Many Bourne shells cannot handle close brackets correctly
+       # in scan sets, so we specify it separately.
+       *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \   ]*|*]*|"")
+         arg="\"$arg\""
+         ;;
+       esac
+
+       # Add the previous argument to base_compile.
+       if test -z "$base_compile"; then
+         base_compile="$lastarg"
+       else
+         base_compile="$base_compile $lastarg"
+       fi
+       continue
+       ;;
+      esac
+
+      # Accept any command-line options.
+      case $arg in
+      -o)
+       if test "$user_target" != "no"; then
+         $echo "$modename: you cannot specify \`-o' more than once" 1>&2
+         exit 1
+       fi
+       user_target=next
+       ;;
+
+      -static)
+       build_old_libs=yes
+       continue
+       ;;
+
+      -prefer-pic)
+       pic_mode=yes
+       continue
+       ;;
+
+      -prefer-non-pic)
+       pic_mode=no
+       continue
+       ;;
+
+      -Xcompiler)
+       prev=xcompiler
+       continue
+       ;;
+
+      -Wc,*)
+       args=`$echo "X$arg" | $Xsed -e "s/^-Wc,//"`
+       lastarg=
+       save_ifs="$IFS"; IFS=','
+       for arg in $args; do
+         IFS="$save_ifs"
+
+         # Double-quote args containing other shell metacharacters.
+         # Many Bourne shells cannot handle close brackets correctly
+         # in scan sets, so we specify it separately.
+         case $arg in
+           *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \       ]*|*]*|"")
+           arg="\"$arg\""
+           ;;
+         esac
+         lastarg="$lastarg $arg"
+       done
+       IFS="$save_ifs"
+       lastarg=`$echo "X$lastarg" | $Xsed -e "s/^ //"`
+
+       # Add the arguments to base_compile.
+       if test -z "$base_compile"; then
+         base_compile="$lastarg"
+       else
+         base_compile="$base_compile $lastarg"
+       fi
+       continue
+       ;;
+      esac
+
+      case $user_target in
+      next)
+       # The next one is the -o target name
+       user_target=yes
+       continue
+       ;;
+      yes)
+       # We got the output file
+       user_target=set
+       libobj="$arg"
+       continue
+       ;;
+      esac
+
+      # Accept the current argument as the source file.
+      lastarg="$srcfile"
+      srcfile="$arg"
+
+      # Aesthetically quote the previous argument.
+
+      # Backslashify any backslashes, double quotes, and dollar signs.
+      # These are the only characters that are still specially
+      # interpreted inside of double-quoted scrings.
+      lastarg=`$echo "X$lastarg" | $Xsed -e "$sed_quote_subst"`
+
+      # Double-quote args containing other shell metacharacters.
+      # Many Bourne shells cannot handle close brackets correctly
+      # in scan sets, so we specify it separately.
+      case $lastarg in
+      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \    ]*|*]*|"")
+       lastarg="\"$lastarg\""
+       ;;
+      esac
+
+      # Add the previous argument to base_compile.
+      if test -z "$base_compile"; then
+       base_compile="$lastarg"
+      else
+       base_compile="$base_compile $lastarg"
+      fi
+    done
+
+    case $user_target in
+    set)
+      ;;
+    no)
+      # Get the name of the library object.
+      libobj=`$echo "X$srcfile" | $Xsed -e 's%^.*/%%'`
+      ;;
+    *)
+      $echo "$modename: you must specify a target with \`-o'" 1>&2
+      exit 1
+      ;;
+    esac
+
+    # Recognize several different file suffixes.
+    # If the user specifies -o file.o, it is replaced with file.lo
+    xform='[cCFSfmso]'
+    case $libobj in
+    *.ada) xform=ada ;;
+    *.adb) xform=adb ;;
+    *.ads) xform=ads ;;
+    *.asm) xform=asm ;;
+    *.c++) xform=c++ ;;
+    *.cc) xform=cc ;;
+    *.cpp) xform=cpp ;;
+    *.cxx) xform=cxx ;;
+    *.f90) xform=f90 ;;
+    *.for) xform=for ;;
+    esac
+
+    libobj=`$echo "X$libobj" | $Xsed -e "s/\.$xform$/.lo/"`
+
+    case $libobj in
+    *.lo) obj=`$echo "X$libobj" | $Xsed -e "$lo2o"` ;;
+    *)
+      $echo "$modename: cannot determine name of library object from \`$libobj'" 1>&2
+      exit 1
+      ;;
+    esac
+
+    if test -z "$base_compile"; then
+      $echo "$modename: you must specify a compilation command" 1>&2
+      $echo "$help" 1>&2
+      exit 1
+    fi
+
+    # Delete any leftover library objects.
+    if test "$build_old_libs" = yes; then
+      removelist="$obj $libobj"
+    else
+      removelist="$libobj"
+    fi
+
+    $run $rm $removelist
+    trap "$run $rm $removelist; exit 1" 1 2 15
+
+    # On Cygwin there's no "real" PIC flag so we must build both object types
+    case $host_os in
+    cygwin* | mingw* | pw32* | os2*)
+      pic_mode=default
+      ;;
+    esac
+    if test "$pic_mode" = no && test "$deplibs_check_method" != pass_all; then
+      # non-PIC code in shared libraries is not supported
+      pic_mode=default
+    fi
+
+    # Calculate the filename of the output object if compiler does
+    # not support -o with -c
+    if test "$compiler_c_o" = no; then
+      output_obj=`$echo "X$srcfile" | $Xsed -e 's%^.*/%%' -e 's%\.[^.]*$%%'`.${objext}
+      lockfile="$output_obj.lock"
+      removelist="$removelist $output_obj $lockfile"
+      trap "$run $rm $removelist; exit 1" 1 2 15
+    else
+      need_locks=no
+      lockfile=
+    fi
+
+    # Lock this critical section if it is needed
+    # We use this script file to make the link, it avoids creating a new file
+    if test "$need_locks" = yes; then
+      until $run ln "$0" "$lockfile" 2>/dev/null; do
+       $show "Waiting for $lockfile to be removed"
+       sleep 2
+      done
+    elif test "$need_locks" = warn; then
+      if test -f "$lockfile"; then
+       echo "\
+*** ERROR, $lockfile exists and contains:
+`cat $lockfile 2>/dev/null`
+
+This indicates that another process is trying to use the same
+temporary object file, and libtool could not work around it because
+your compiler does not support \`-c' and \`-o' together.  If you
+repeat this compilation, it may succeed, by chance, but you had better
+avoid parallel builds (make -j) in this platform, or get a better
+compiler."
+
+       $run $rm $removelist
+       exit 1
+      fi
+      echo $srcfile > "$lockfile"
+    fi
+
+    if test -n "$fix_srcfile_path"; then
+      eval srcfile=\"$fix_srcfile_path\"
+    fi
+
+    # Only build a PIC object if we are building libtool libraries.
+    if test "$build_libtool_libs" = yes; then
+      # Without this assignment, base_compile gets emptied.
+      fbsd_hideous_sh_bug=$base_compile
+
+      if test "$pic_mode" != no; then
+       # All platforms use -DPIC, to notify preprocessed assembler code.
+       command="$base_compile $srcfile $pic_flag -DPIC"
+      else
+       # Don't build PIC code
+       command="$base_compile $srcfile"
+      fi
+      if test "$build_old_libs" = yes; then
+       lo_libobj="$libobj"
+       dir=`$echo "X$libobj" | $Xsed -e 's%/[^/]*$%%'`
+       if test "X$dir" = "X$libobj"; then
+         dir="$objdir"
+       else
+         dir="$dir/$objdir"
+       fi
+       libobj="$dir/"`$echo "X$libobj" | $Xsed -e 's%^.*/%%'`
+
+       if test -d "$dir"; then
+         $show "$rm $libobj"
+         $run $rm $libobj
+       else
+         $show "$mkdir $dir"
+         $run $mkdir $dir
+         status=$?
+         if test $status -ne 0 && test ! -d $dir; then
+           exit $status
+         fi
+       fi
+      fi
+      if test "$compiler_o_lo" = yes; then
+       output_obj="$libobj"
+       command="$command -o $output_obj"
+      elif test "$compiler_c_o" = yes; then
+       output_obj="$obj"
+       command="$command -o $output_obj"
+      fi
+
+      $run $rm "$output_obj"
+      $show "$command"
+      if $run eval "$command"; then :
+      else
+       test -n "$output_obj" && $run $rm $removelist
+       exit 1
+      fi
+
+      if test "$need_locks" = warn &&
+        test x"`cat $lockfile 2>/dev/null`" != x"$srcfile"; then
+       echo "\
+*** ERROR, $lockfile contains:
+`cat $lockfile 2>/dev/null`
+
+but it should contain:
+$srcfile
+
+This indicates that another process is trying to use the same
+temporary object file, and libtool could not work around it because
+your compiler does not support \`-c' and \`-o' together.  If you
+repeat this compilation, it may succeed, by chance, but you had better
+avoid parallel builds (make -j) in this platform, or get a better
+compiler."
+
+       $run $rm $removelist
+       exit 1
+      fi
+
+      # Just move the object if needed, then go on to compile the next one
+      if test x"$output_obj" != x"$libobj"; then
+       $show "$mv $output_obj $libobj"
+       if $run $mv $output_obj $libobj; then :
+       else
+         error=$?
+         $run $rm $removelist
+         exit $error
+       fi
+      fi
+
+      # If we have no pic_flag, then copy the object into place and finish.
+      if (test -z "$pic_flag" || test "$pic_mode" != default) &&
+        test "$build_old_libs" = yes; then
+       # Rename the .lo from within objdir to obj
+       if test -f $obj; then
+         $show $rm $obj
+         $run $rm $obj
+       fi
+
+       $show "$mv $libobj $obj"
+       if $run $mv $libobj $obj; then :
+       else
+         error=$?
+         $run $rm $removelist
+         exit $error
+       fi
+
+       xdir=`$echo "X$obj" | $Xsed -e 's%/[^/]*$%%'`
+       if test "X$xdir" = "X$obj"; then
+         xdir="."
+       else
+         xdir="$xdir"
+       fi
+       baseobj=`$echo "X$obj" | $Xsed -e "s%.*/%%"`
+       libobj=`$echo "X$baseobj" | $Xsed -e "$o2lo"`
+       # Now arrange that obj and lo_libobj become the same file
+       $show "(cd $xdir && $LN_S $baseobj $libobj)"
+       if $run eval '(cd $xdir && $LN_S $baseobj $libobj)'; then
+         # Unlock the critical section if it was locked
+         if test "$need_locks" != no; then
+           $run $rm "$lockfile"
+         fi
+         exit 0
+       else
+         error=$?
+         $run $rm $removelist
+         exit $error
+       fi
+      fi
+
+      # Allow error messages only from the first compilation.
+      suppress_output=' >/dev/null 2>&1'
+    fi
+
+    # Only build a position-dependent object if we build old libraries.
+    if test "$build_old_libs" = yes; then
+      if test "$pic_mode" != yes; then
+       # Don't build PIC code
+       command="$base_compile $srcfile"
+      else
+       # All platforms use -DPIC, to notify preprocessed assembler code.
+       command="$base_compile $srcfile $pic_flag -DPIC"
+      fi
+      if test "$compiler_c_o" = yes; then
+       command="$command -o $obj"
+       output_obj="$obj"
+      fi
+
+      # Suppress compiler output if we already did a PIC compilation.
+      command="$command$suppress_output"
+      $run $rm "$output_obj"
+      $show "$command"
+      if $run eval "$command"; then :
+      else
+       $run $rm $removelist
+       exit 1
+      fi
+
+      if test "$need_locks" = warn &&
+        test x"`cat $lockfile 2>/dev/null`" != x"$srcfile"; then
+       echo "\
+*** ERROR, $lockfile contains:
+`cat $lockfile 2>/dev/null`
+
+but it should contain:
+$srcfile
+
+This indicates that another process is trying to use the same
+temporary object file, and libtool could not work around it because
+your compiler does not support \`-c' and \`-o' together.  If you
+repeat this compilation, it may succeed, by chance, but you had better
+avoid parallel builds (make -j) in this platform, or get a better
+compiler."
+
+       $run $rm $removelist
+       exit 1
+      fi
+
+      # Just move the object if needed
+      if test x"$output_obj" != x"$obj"; then
+       $show "$mv $output_obj $obj"
+       if $run $mv $output_obj $obj; then :
+       else
+         error=$?
+         $run $rm $removelist
+         exit $error
+       fi
+      fi
+
+      # Create an invalid libtool object if no PIC, so that we do not
+      # accidentally link it into a program.
+      if test "$build_libtool_libs" != yes; then
+       $show "echo timestamp > $libobj"
+       $run eval "echo timestamp > \$libobj" || exit $?
+      else
+       # Move the .lo from within objdir
+       $show "$mv $libobj $lo_libobj"
+       if $run $mv $libobj $lo_libobj; then :
+       else
+         error=$?
+         $run $rm $removelist
+         exit $error
+       fi
+      fi
+    fi
+
+    # Unlock the critical section if it was locked
+    if test "$need_locks" != no; then
+      $run $rm "$lockfile"
+    fi
+
+    exit 0
+    ;;
+
+  # libtool link mode
+  link | relink)
+    modename="$modename: link"
+    case $host in
+    *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2*)
+      # It is impossible to link a dll without this setting, and
+      # we shouldn't force the makefile maintainer to figure out
+      # which system we are compiling for in order to pass an extra
+      # flag for every libtool invokation.
+      # allow_undefined=no
+
+      # FIXME: Unfortunately, there are problems with the above when trying
+      # to make a dll which has undefined symbols, in which case not
+      # even a static library is built.  For now, we need to specify
+      # -no-undefined on the libtool link line when we can be certain
+      # that all symbols are satisfied, otherwise we get a static library.
+      allow_undefined=yes
+      ;;
+    *)
+      allow_undefined=yes
+      ;;
+    esac
+    libtool_args="$nonopt"
+    compile_command="$nonopt"
+    finalize_command="$nonopt"
+
+    compile_rpath=
+    finalize_rpath=
+    compile_shlibpath=
+    finalize_shlibpath=
+    convenience=
+    old_convenience=
+    deplibs=
+    old_deplibs=
+    compiler_flags=
+    linker_flags=
+    dllsearchpath=
+    lib_search_path=`pwd`
+    inst_prefix_dir=
+
+    avoid_version=no
+    dlfiles=
+    dlprefiles=
+    dlself=no
+    export_dynamic=no
+    export_symbols=
+    export_symbols_regex=
+    generated=
+    libobjs=
+    ltlibs=
+    module=no
+    no_install=no
+    objs=
+    prefer_static_libs=no
+    preload=no
+    prev=
+    prevarg=
+    release=
+    rpath=
+    xrpath=
+    perm_rpath=
+    temp_rpath=
+    thread_safe=no
+    vinfo=
+
+    # We need to know -static, to get the right output filenames.
+    for arg
+    do
+      case $arg in
+      -all-static | -static)
+       if test "X$arg" = "X-all-static"; then
+         if test "$build_libtool_libs" = yes && test -z "$link_static_flag"; then
+           $echo "$modename: warning: complete static linking is impossible in this configuration" 1>&2
+         fi
+         if test -n "$link_static_flag"; then
+           dlopen_self=$dlopen_self_static
+         fi
+       else
+         if test -z "$pic_flag" && test -n "$link_static_flag"; then
+           dlopen_self=$dlopen_self_static
+         fi
+       fi
+       build_libtool_libs=no
+       build_old_libs=yes
+       prefer_static_libs=yes
+       break
+       ;;
+      esac
+    done
+
+    # See if our shared archives depend on static archives.
+    test -n "$old_archive_from_new_cmds" && build_old_libs=yes
+
+    # Go through the arguments, transforming them on the way.
+    while test $# -gt 0; do
+      arg="$1"
+      shift
+      case $arg in
+      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \    ]*|*]*|"")
+       qarg=\"`$echo "X$arg" | $Xsed -e "$sed_quote_subst"`\" ### testsuite: skip nested quoting test
+       ;;
+      *) qarg=$arg ;;
+      esac
+      libtool_args="$libtool_args $qarg"
+
+      # If the previous option needs an argument, assign it.
+      if test -n "$prev"; then
+       case $prev in
+       output)
+         compile_command="$compile_command @OUTPUT@"
+         finalize_command="$finalize_command @OUTPUT@"
+         ;;
+       esac
+
+       case $prev in
+       dlfiles|dlprefiles)
+         if test "$preload" = no; then
+           # Add the symbol object into the linking commands.
+           compile_command="$compile_command @SYMFILE@"
+           finalize_command="$finalize_command @SYMFILE@"
+           preload=yes
+         fi
+         case $arg in
+         *.la | *.lo) ;;  # We handle these cases below.
+         force)
+           if test "$dlself" = no; then
+             dlself=needless
+             export_dynamic=yes
+           fi
+           prev=
+           continue
+           ;;
+         self)
+           if test "$prev" = dlprefiles; then
+             dlself=yes
+           elif test "$prev" = dlfiles && test "$dlopen_self" != yes; then
+             dlself=yes
+           else
+             dlself=needless
+             export_dynamic=yes
+           fi
+           prev=
+           continue
+           ;;
+         *)
+           if test "$prev" = dlfiles; then
+             dlfiles="$dlfiles $arg"
+           else
+             dlprefiles="$dlprefiles $arg"
+           fi
+           prev=
+           continue
+           ;;
+         esac
+         ;;
+       expsyms)
+         export_symbols="$arg"
+         if test ! -f "$arg"; then
+           $echo "$modename: symbol file \`$arg' does not exist"
+           exit 1
+         fi
+         prev=
+         continue
+         ;;
+       expsyms_regex)
+         export_symbols_regex="$arg"
+         prev=
+         continue
+         ;;
+        inst_prefix)
+         inst_prefix_dir="$arg"
+         prev=
+         continue
+         ;;
+       release)
+         release="-$arg"
+         prev=
+         continue
+         ;;
+       rpath | xrpath)
+         # We need an absolute path.
+         case $arg in
+         [\\/]* | [A-Za-z]:[\\/]*) ;;
+         *)
+           $echo "$modename: only absolute run-paths are allowed" 1>&2
+           exit 1
+           ;;
+         esac
+         if test "$prev" = rpath; then
+           case "$rpath " in
+           *" $arg "*) ;;
+           *) rpath="$rpath $arg" ;;
+           esac
+         else
+           case "$xrpath " in
+           *" $arg "*) ;;
+           *) xrpath="$xrpath $arg" ;;
+           esac
+         fi
+         prev=
+         continue
+         ;;
+       xcompiler)
+         compiler_flags="$compiler_flags $qarg"
+         prev=
+         compile_command="$compile_command $qarg"
+         finalize_command="$finalize_command $qarg"
+         continue
+         ;;
+       xlinker)
+         linker_flags="$linker_flags $qarg"
+         compiler_flags="$compiler_flags $wl$qarg"
+         prev=
+         compile_command="$compile_command $wl$qarg"
+         finalize_command="$finalize_command $wl$qarg"
+         continue
+         ;;
+       *)
+         eval "$prev=\"\$arg\""
+         prev=
+         continue
+         ;;
+       esac
+      fi # test -n $prev
+
+      prevarg="$arg"
+
+      case $arg in
+      -all-static)
+       if test -n "$link_static_flag"; then
+         compile_command="$compile_command $link_static_flag"
+         finalize_command="$finalize_command $link_static_flag"
+       fi
+       continue
+       ;;
+
+      -allow-undefined)
+       # FIXME: remove this flag sometime in the future.
+       $echo "$modename: \`-allow-undefined' is deprecated because it is the default" 1>&2
+       continue
+       ;;
+
+      -avoid-version)
+       avoid_version=yes
+       continue
+       ;;
+
+      -dlopen)
+       prev=dlfiles
+       continue
+       ;;
+
+      -dlpreopen)
+       prev=dlprefiles
+       continue
+       ;;
+
+      -export-dynamic)
+       export_dynamic=yes
+       continue
+       ;;
+
+      -export-symbols | -export-symbols-regex)
+       if test -n "$export_symbols" || test -n "$export_symbols_regex"; then
+         $echo "$modename: more than one -exported-symbols argument is not allowed"
+         exit 1
+       fi
+       if test "X$arg" = "X-export-symbols"; then
+         prev=expsyms
+       else
+         prev=expsyms_regex
+       fi
+       continue
+       ;;
+
+      -inst-prefix-dir)
+       prev=inst_prefix
+       continue
+       ;;
+
+      # The native IRIX linker understands -LANG:*, -LIST:* and -LNO:*
+      # so, if we see these flags be careful not to treat them like -L
+      -L[A-Z][A-Z]*:*)
+       case $with_gcc/$host in
+       no/*-*-irix*)
+         compile_command="$compile_command $arg"
+         finalize_command="$finalize_command $arg"
+         ;;
+       esac
+       continue
+       ;;
+
+      -L*)
+       dir=`$echo "X$arg" | $Xsed -e 's/^-L//'`
+       # We need an absolute path.
+       case $dir in
+       [\\/]* | [A-Za-z]:[\\/]*) ;;
+       *)
+         absdir=`cd "$dir" && pwd`
+         if test -z "$absdir"; then
+           $echo "$modename: cannot determine absolute directory name of \`$dir'" 1>&2
+           exit 1
+         fi
+         dir="$absdir"
+         ;;
+       esac
+       case "$deplibs " in
+       *" -L$dir "*) ;;
+       *)
+         deplibs="$deplibs -L$dir"
+         lib_search_path="$lib_search_path $dir"
+         ;;
+       esac
+       case $host in
+       *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2*)
+         case :$dllsearchpath: in
+         *":$dir:"*) ;;
+         *) dllsearchpath="$dllsearchpath:$dir";;
+         esac
+         ;;
+       esac
+       continue
+       ;;
+
+      -l*)
+       if test "X$arg" = "X-lc" || test "X$arg" = "X-lm"; then
+         case $host in
+         *-*-cygwin* | *-*-pw32* | *-*-beos*)
+           # These systems don't actually have a C or math library (as such)
+           continue
+           ;;
+         *-*-mingw* | *-*-os2*)
+           # These systems don't actually have a C library (as such)
+           test "X$arg" = "X-lc" && continue
+           ;;
+         *-*-openbsd*)
+           # Do not include libc due to us having libc/libc_r.
+           test "X$arg" = "X-lc" && continue
+           ;;
+         esac
+        elif test "X$arg" = "X-lc_r"; then
+         case $host in
+         *-*-openbsd*)
+           # Do not include libc_r directly, use -pthread flag.
+           continue
+           ;;
+         esac
+       fi
+       deplibs="$deplibs $arg"
+       continue
+       ;;
+
+      -module)
+       module=yes
+       continue
+       ;;
+
+      -no-fast-install)
+       fast_install=no
+       continue
+       ;;
+
+      -no-install)
+       case $host in
+       *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2*)
+         # The PATH hackery in wrapper scripts is required on Windows
+         # in order for the loader to find any dlls it needs.
+         $echo "$modename: warning: \`-no-install' is ignored for $host" 1>&2
+         $echo "$modename: warning: assuming \`-no-fast-install' instead" 1>&2
+         fast_install=no
+         ;;
+       *) no_install=yes ;;
+       esac
+       continue
+       ;;
+
+      -no-undefined)
+       allow_undefined=no
+       continue
+       ;;
+
+      -o) prev=output ;;
+
+      -release)
+       prev=release
+       continue
+       ;;
+
+      -rpath)
+       prev=rpath
+       continue
+       ;;
+
+      -R)
+       prev=xrpath
+       continue
+       ;;
+
+      -R*)
+       dir=`$echo "X$arg" | $Xsed -e 's/^-R//'`
+       # We need an absolute path.
+       case $dir in
+       [\\/]* | [A-Za-z]:[\\/]*) ;;
+       *)
+         $echo "$modename: only absolute run-paths are allowed" 1>&2
+         exit 1
+         ;;
+       esac
+       case "$xrpath " in
+       *" $dir "*) ;;
+       *) xrpath="$xrpath $dir" ;;
+       esac
+       continue
+       ;;
+
+      -static)
+       # The effects of -static are defined in a previous loop.
+       # We used to do the same as -all-static on platforms that
+       # didn't have a PIC flag, but the assumption that the effects
+       # would be equivalent was wrong.  It would break on at least
+       # Digital Unix and AIX.
+       continue
+       ;;
+
+      -thread-safe)
+       thread_safe=yes
+       continue
+       ;;
+
+      -version-info)
+       prev=vinfo
+       continue
+       ;;
+
+      -Wc,*)
+       args=`$echo "X$arg" | $Xsed -e "$sed_quote_subst" -e 's/^-Wc,//'`
+       arg=
+       save_ifs="$IFS"; IFS=','
+       for flag in $args; do
+         IFS="$save_ifs"
+         case $flag in
+           *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \       ]*|*]*|"")
+           flag="\"$flag\""
+           ;;
+         esac
+         arg="$arg $wl$flag"
+         compiler_flags="$compiler_flags $flag"
+       done
+       IFS="$save_ifs"
+       arg=`$echo "X$arg" | $Xsed -e "s/^ //"`
+       ;;
+
+      -Wl,*)
+       args=`$echo "X$arg" | $Xsed -e "$sed_quote_subst" -e 's/^-Wl,//'`
+       arg=
+       save_ifs="$IFS"; IFS=','
+       for flag in $args; do
+         IFS="$save_ifs"
+         case $flag in
+           *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \       ]*|*]*|"")
+           flag="\"$flag\""
+           ;;
+         esac
+         arg="$arg $wl$flag"
+         compiler_flags="$compiler_flags $wl$flag"
+         linker_flags="$linker_flags $flag"
+       done
+       IFS="$save_ifs"
+       arg=`$echo "X$arg" | $Xsed -e "s/^ //"`
+       ;;
+
+      -Xcompiler)
+       prev=xcompiler
+       continue
+       ;;
+
+      -Xlinker)
+       prev=xlinker
+       continue
+       ;;
+
+      # Some other compiler flag.
+      -* | +*)
+       # Unknown arguments in both finalize_command and compile_command need
+       # to be aesthetically quoted because they are evaled later.
+       arg=`$echo "X$arg" | $Xsed -e "$sed_quote_subst"`
+       case $arg in
+       *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \   ]*|*]*|"")
+         arg="\"$arg\""
+         ;;
+       esac
+       ;;
+
+      *.lo | *.$objext)
+       # A library or standard object.
+       if test "$prev" = dlfiles; then
+         # This file was specified with -dlopen.
+         if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then
+           dlfiles="$dlfiles $arg"
+           prev=
+           continue
+         else
+           # If libtool objects are unsupported, then we need to preload.
+           prev=dlprefiles
+         fi
+       fi
+
+       if test "$prev" = dlprefiles; then
+         # Preload the old-style object.
+         dlprefiles="$dlprefiles "`$echo "X$arg" | $Xsed -e "$lo2o"`
+         prev=
+       else
+         case $arg in
+         *.lo) libobjs="$libobjs $arg" ;;
+         *) objs="$objs $arg" ;;
+         esac
+       fi
+       ;;
+
+      *.$libext)
+       # An archive.
+       deplibs="$deplibs $arg"
+       old_deplibs="$old_deplibs $arg"
+       continue
+       ;;
+
+      *.la)
+       # A libtool-controlled library.
+
+       if test "$prev" = dlfiles; then
+         # This library was specified with -dlopen.
+         dlfiles="$dlfiles $arg"
+         prev=
+       elif test "$prev" = dlprefiles; then
+         # The library was specified with -dlpreopen.
+         dlprefiles="$dlprefiles $arg"
+         prev=
+       else
+         deplibs="$deplibs $arg"
+       fi
+       continue
+       ;;
+
+      # Some other compiler argument.
+      *)
+       # Unknown arguments in both finalize_command and compile_command need
+       # to be aesthetically quoted because they are evaled later.
+       arg=`$echo "X$arg" | $Xsed -e "$sed_quote_subst"`
+       case $arg in
+       *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \   ]*|*]*|"")
+         arg="\"$arg\""
+         ;;
+       esac
+       ;;
+      esac # arg
+
+      # Now actually substitute the argument into the commands.
+      if test -n "$arg"; then
+       compile_command="$compile_command $arg"
+       finalize_command="$finalize_command $arg"
+      fi
+    done # argument parsing loop
+
+    if test -n "$prev"; then
+      $echo "$modename: the \`$prevarg' option requires an argument" 1>&2
+      $echo "$help" 1>&2
+      exit 1
+    fi
+
+    if test "$export_dynamic" = yes && test -n "$export_dynamic_flag_spec"; then
+      eval arg=\"$export_dynamic_flag_spec\"
+      compile_command="$compile_command $arg"
+      finalize_command="$finalize_command $arg"
+    fi
+
+    # calculate the name of the file, without its directory
+    outputname=`$echo "X$output" | $Xsed -e 's%^.*/%%'`
+    libobjs_save="$libobjs"
+
+    if test -n "$shlibpath_var"; then
+      # get the directories listed in $shlibpath_var
+      eval shlib_search_path=\`\$echo \"X\${$shlibpath_var}\" \| \$Xsed -e \'s/:/ /g\'\`
+    else
+      shlib_search_path=
+    fi
+    eval sys_lib_search_path=\"$sys_lib_search_path_spec\"
+    eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\"
+
+    output_objdir=`$echo "X$output" | $Xsed -e 's%/[^/]*$%%'`
+    if test "X$output_objdir" = "X$output"; then
+      output_objdir="$objdir"
+    else
+      output_objdir="$output_objdir/$objdir"
+    fi
+    # Create the object directory.
+    if test ! -d "$output_objdir"; then
+      $show "$mkdir $output_objdir"
+      $run $mkdir $output_objdir
+      status=$?
+      if test "$status" -ne 0 && test ! -d "$output_objdir"; then
+       exit $status
+      fi
+    fi
+
+    # Determine the type of output
+    case $output in
+    "")
+      $echo "$modename: you must specify an output file" 1>&2
+      $echo "$help" 1>&2
+      exit 1
+      ;;
+    *.$libext) linkmode=oldlib ;;
+    *.lo | *.$objext) linkmode=obj ;;
+    *.la) linkmode=lib ;;
+    *) linkmode=prog ;; # Anything else should be a program.
+    esac
+
+    specialdeplibs=
+    libs=
+    # Find all interdependent deplibs by searching for libraries
+    # that are linked more than once (e.g. -la -lb -la)
+    for deplib in $deplibs; do
+      if test "X$duplicate_deps" = "Xyes" ; then
+       case "$libs " in
+       *" $deplib "*) specialdeplibs="$specialdeplibs $deplib" ;;
+       esac
+      fi
+      libs="$libs $deplib"
+    done
+
+    if test "$linkmode" = lib; then
+      libs="$predeps $libs $compiler_lib_search_path $postdeps"
+
+      # Compute libraries that are listed more than once in $predeps
+      # $postdeps and mark them as special (i.e., whose duplicates are
+      # not to be eliminated).
+      pre_post_deps=
+      if test "X$duplicate_deps" = "Xyes" ; then
+       for pre_post_dep in $predeps $postdeps; do
+         case "$pre_post_deps " in
+         *" $pre_post_dep "*) specialdeplibs="$specialdeplibs $pre_post_deps" ;;
+         esac
+         pre_post_deps="$pre_post_deps $pre_post_dep"
+       done
+      fi
+      pre_post_deps=
+    fi
+
+    deplibs=
+    newdependency_libs=
+    newlib_search_path=
+    need_relink=no # whether we're linking any uninstalled libtool libraries
+    notinst_deplibs= # not-installed libtool libraries
+    notinst_path= # paths that contain not-installed libtool libraries
+    case $linkmode in
+    lib)
+       passes="conv link"
+       for file in $dlfiles $dlprefiles; do
+         case $file in
+         *.la) ;;
+         *)
+           $echo "$modename: libraries can \`-dlopen' only libtool libraries: $file" 1>&2
+           exit 1
+           ;;
+         esac
+       done
+       ;;
+    prog)
+       compile_deplibs=
+       finalize_deplibs=
+       alldeplibs=no
+       newdlfiles=
+       newdlprefiles=
+       passes="conv scan dlopen dlpreopen link"
+       ;;
+    *)  passes="conv"
+       ;;
+    esac
+    for pass in $passes; do
+      if test "$linkmode" = prog; then
+       # Determine which files to process
+       case $pass in
+       dlopen)
+         libs="$dlfiles"
+         save_deplibs="$deplibs" # Collect dlpreopened libraries
+         deplibs=
+         ;;
+       dlpreopen) libs="$dlprefiles" ;;
+       link) libs="$deplibs %DEPLIBS% $dependency_libs" ;;
+       esac
+      fi
+      for deplib in $libs; do
+       lib=
+       found=no
+       case $deplib in
+       -l*)
+         if test "$linkmode" = oldlib && test "$linkmode" = obj; then
+           $echo "$modename: warning: \`-l' is ignored for archives/objects: $deplib" 1>&2
+           continue
+         fi
+         if test "$pass" = conv; then
+           deplibs="$deplib $deplibs"
+           continue
+         fi
+         name=`$echo "X$deplib" | $Xsed -e 's/^-l//'`
+         for searchdir in $newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path; do
+           # Search the libtool library
+           lib="$searchdir/lib${name}.la"
+           if test -f "$lib"; then
+             found=yes
+             break
+           fi
+         done
+         if test "$found" != yes; then
+           # deplib doesn't seem to be a libtool library
+           if test "$linkmode,$pass" = "prog,link"; then
+             compile_deplibs="$deplib $compile_deplibs"
+             finalize_deplibs="$deplib $finalize_deplibs"
+           else
+             deplibs="$deplib $deplibs"
+             test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs"
+           fi
+           continue
+         fi
+         ;; # -l
+       -L*)
+         case $linkmode in
+         lib)
+           deplibs="$deplib $deplibs"
+           test "$pass" = conv && continue
+           newdependency_libs="$deplib $newdependency_libs"
+           newlib_search_path="$newlib_search_path "`$echo "X$deplib" | $Xsed -e 's/^-L//'`
+           ;;
+         prog)
+           if test "$pass" = conv; then
+             deplibs="$deplib $deplibs"
+             continue
+           fi
+           if test "$pass" = scan; then
+             deplibs="$deplib $deplibs"
+             newlib_search_path="$newlib_search_path "`$echo "X$deplib" | $Xsed -e 's/^-L//'`
+           else
+             compile_deplibs="$deplib $compile_deplibs"
+             finalize_deplibs="$deplib $finalize_deplibs"
+           fi
+           ;;
+         *)
+           $echo "$modename: warning: \`-L' is ignored for archives/objects: $deplib" 1>&2
+           ;;
+         esac # linkmode
+         continue
+         ;; # -L
+       -R*)
+         if test "$pass" = link; then
+           dir=`$echo "X$deplib" | $Xsed -e 's/^-R//'`
+           # Make sure the xrpath contains only unique directories.
+           case "$xrpath " in
+           *" $dir "*) ;;
+           *) xrpath="$xrpath $dir" ;;
+           esac
+         fi
+         deplibs="$deplib $deplibs"
+         continue
+         ;;
+       *.la) lib="$deplib" ;;
+       *.$libext)
+         if test "$pass" = conv; then
+           deplibs="$deplib $deplibs"
+           continue
+         fi
+         case $linkmode in
+         lib)
+           if test "$deplibs_check_method" != pass_all; then
+             echo
+             echo "*** Warning: This library needs some functionality provided by $deplib."
+             echo "*** I have the capability to make that library automatically link in when"
+             echo "*** you link to this library.  But I can only do this if you have a"
+             echo "*** shared version of the library, which you do not appear to have."
+           else
+             echo
+             echo "*** Warning: Linking the shared library $output against the"
+             echo "*** static library $deplib is not portable!"
+             deplibs="$deplib $deplibs"
+           fi
+           continue
+           ;;
+         prog)
+           if test "$pass" != link; then
+             deplibs="$deplib $deplibs"
+           else
+             compile_deplibs="$deplib $compile_deplibs"
+             finalize_deplibs="$deplib $finalize_deplibs"
+           fi
+           continue
+           ;;
+         esac # linkmode
+         ;; # *.$libext
+       *.lo | *.$objext)
+         if test "$pass" = dlpreopen || test "$dlopen_support" != yes || test "$build_libtool_libs" = no; then
+           # If there is no dlopen support or we're linking statically,
+           # we need to preload.
+           newdlprefiles="$newdlprefiles $deplib"
+           compile_deplibs="$deplib $compile_deplibs"
+           finalize_deplibs="$deplib $finalize_deplibs"
+         else
+           newdlfiles="$newdlfiles $deplib"
+         fi
+         continue
+         ;;
+       %DEPLIBS%)
+         alldeplibs=yes
+         continue
+         ;;
+       esac # case $deplib
+       if test "$found" = yes || test -f "$lib"; then :
+       else
+         $echo "$modename: cannot find the library \`$lib'" 1>&2
+         exit 1
+       fi
+
+       # Check to see that this really is a libtool archive.
+       if (sed -e '2q' $lib | egrep "^# Generated by .*$PACKAGE") >/dev/null 2>&1; then :
+       else
+         $echo "$modename: \`$lib' is not a valid libtool archive" 1>&2
+         exit 1
+       fi
+
+       ladir=`$echo "X$lib" | $Xsed -e 's%/[^/]*$%%'`
+       test "X$ladir" = "X$lib" && ladir="."
+
+       dlname=
+       dlopen=
+       dlpreopen=
+       libdir=
+       library_names=
+       old_library=
+       # If the library was installed with an old release of libtool,
+       # it will not redefine variable installed.
+       installed=yes
+
+       # Read the .la file
+       case $lib in
+       */* | *\\*) . $lib ;;
+       *) . ./$lib ;;
+       esac
+
+       if test "$linkmode,$pass" = "lib,link" ||
+          test "$linkmode,$pass" = "prog,scan" ||
+          { test "$linkmode" = oldlib && test "$linkmode" = obj; }; then
+          # Add dl[pre]opened files of deplib
+         test -n "$dlopen" && dlfiles="$dlfiles $dlopen"
+         test -n "$dlpreopen" && dlprefiles="$dlprefiles $dlpreopen"
+       fi
+
+       if test "$pass" = conv; then
+         # Only check for convenience libraries
+         deplibs="$lib $deplibs"
+         if test -z "$libdir"; then
+           if test -z "$old_library"; then
+             $echo "$modename: cannot find name of link library for \`$lib'" 1>&2
+             exit 1
+           fi
+           # It is a libtool convenience library, so add in its objects.
+           convenience="$convenience $ladir/$objdir/$old_library"
+           old_convenience="$old_convenience $ladir/$objdir/$old_library"
+           tmp_libs=
+           for deplib in $dependency_libs; do
+             deplibs="$deplib $deplibs"
+              if test "X$duplicate_deps" = "Xyes" ; then
+               case "$tmp_libs " in
+               *" $deplib "*) specialdeplibs="$specialdeplibs $deplib" ;;
+               esac
+              fi
+             tmp_libs="$tmp_libs $deplib"
+           done
+         elif test "$linkmode" != prog && test "$linkmode" != lib; then
+           $echo "$modename: \`$lib' is not a convenience library" 1>&2
+           exit 1
+         fi
+         continue
+       fi # $pass = conv
+
+       # Get the name of the library we link against.
+       linklib=
+       for l in $old_library $library_names; do
+         linklib="$l"
+       done
+       if test -z "$linklib"; then
+         $echo "$modename: cannot find name of link library for \`$lib'" 1>&2
+         exit 1
+       fi
+
+       # This library was specified with -dlopen.
+       if test "$pass" = dlopen; then
+         if test -z "$libdir"; then
+           $echo "$modename: cannot -dlopen a convenience library: \`$lib'" 1>&2
+           exit 1
+         fi
+         if test -z "$dlname" || test "$dlopen_support" != yes || test "$build_libtool_libs" = no; then
+           # If there is no dlname, no dlopen support or we're linking
+           # statically, we need to preload.
+           dlprefiles="$dlprefiles $lib"
+         else
+           newdlfiles="$newdlfiles $lib"
+         fi
+         continue
+       fi # $pass = dlopen
+
+       # We need an absolute path.
+       case $ladir in
+       [\\/]* | [A-Za-z]:[\\/]*) abs_ladir="$ladir" ;;
+       *)
+         abs_ladir=`cd "$ladir" && pwd`
+         if test -z "$abs_ladir"; then
+           $echo "$modename: warning: cannot determine absolute directory name of \`$ladir'" 1>&2
+           $echo "$modename: passing it literally to the linker, although it might fail" 1>&2
+           abs_ladir="$ladir"
+         fi
+         ;;
+       esac
+       laname=`$echo "X$lib" | $Xsed -e 's%^.*/%%'`
+
+       # Find the relevant object directory and library name.
+       if test "X$installed" = Xyes; then
+         if test ! -f "$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then
+           $echo "$modename: warning: library \`$lib' was moved." 1>&2
+           dir="$ladir"
+           absdir="$abs_ladir"
+           libdir="$abs_ladir"
+         else
+           dir="$libdir"
+           absdir="$libdir"
+         fi
+       else
+         dir="$ladir/$objdir"
+         absdir="$abs_ladir/$objdir"
+         # Remove this search path later
+         notinst_path="$notinst_path $abs_ladir"
+       fi # $installed = yes
+       name=`$echo "X$laname" | $Xsed -e 's/\.la$//' -e 's/^lib//'`
+
+       # This library was specified with -dlpreopen.
+       if test "$pass" = dlpreopen; then
+         if test -z "$libdir"; then
+           $echo "$modename: cannot -dlpreopen a convenience library: \`$lib'" 1>&2
+           exit 1
+         fi
+         # Prefer using a static library (so that no silly _DYNAMIC symbols
+         # are required to link).
+         if test -n "$old_library"; then
+           newdlprefiles="$newdlprefiles $dir/$old_library"
+         # Otherwise, use the dlname, so that lt_dlopen finds it.
+         elif test -n "$dlname"; then
+           newdlprefiles="$newdlprefiles $dir/$dlname"
+         else
+           newdlprefiles="$newdlprefiles $dir/$linklib"
+         fi
+       fi # $pass = dlpreopen
+
+       if test -z "$libdir"; then
+         # Link the convenience library
+         if test "$linkmode" = lib; then
+           deplibs="$dir/$old_library $deplibs"
+         elif test "$linkmode,$pass" = "prog,link"; then
+           compile_deplibs="$dir/$old_library $compile_deplibs"
+           finalize_deplibs="$dir/$old_library $finalize_deplibs"
+         else
+           deplibs="$lib $deplibs"
+         fi
+         continue
+       fi
+
+       if test "$linkmode" = prog && test "$pass" != link; then
+         newlib_search_path="$newlib_search_path $ladir"
+         deplibs="$lib $deplibs"
+
+         linkalldeplibs=no
+         if test "$link_all_deplibs" != no || test -z "$library_names" ||
+            test "$build_libtool_libs" = no; then
+           linkalldeplibs=yes
+         fi
+
+         tmp_libs=
+         for deplib in $dependency_libs; do
+           case $deplib in
+           -L*) newlib_search_path="$newlib_search_path "`$echo "X$deplib" | $Xsed -e 's/^-L//'`;; ### testsuite: skip nested quoting test
+           esac
+           # Need to link against all dependency_libs?
+           if test "$linkalldeplibs" = yes; then
+             deplibs="$deplib $deplibs"
+           else
+             # Need to hardcode shared library paths
+             # or/and link against static libraries
+             newdependency_libs="$deplib $newdependency_libs"
+           fi
+           if test "X$duplicate_deps" = "Xyes" ; then
+             case "$tmp_libs " in
+             *" $deplib "*) specialdeplibs="$specialdeplibs $deplib" ;;
+             esac
+           fi
+           tmp_libs="$tmp_libs $deplib"
+         done # for deplib
+         continue
+       fi # $linkmode = prog...
+
+       link_static=no # Whether the deplib will be linked statically
+       if test -n "$library_names" &&
+          { test "$prefer_static_libs" = no || test -z "$old_library"; }; then
+         # Link against this shared library
+
+         if test "$linkmode,$pass" = "prog,link" ||
+          { test "$linkmode" = lib && test "$hardcode_into_libs" = yes; }; then
+           # Hardcode the library path.
+           # Skip directories that are in the system default run-time
+           # search path.
+           case " $sys_lib_dlsearch_path " in
+           *" $absdir "*) ;;
+           *)
+             case "$compile_rpath " in
+             *" $absdir "*) ;;
+             *) compile_rpath="$compile_rpath $absdir"
+             esac
+             ;;
+           esac
+           case " $sys_lib_dlsearch_path " in
+           *" $libdir "*) ;;
+           *)
+             case "$finalize_rpath " in
+             *" $libdir "*) ;;
+             *) finalize_rpath="$finalize_rpath $libdir"
+             esac
+             ;;
+           esac
+           if test "$linkmode" = prog; then
+             # We need to hardcode the library path
+             if test -n "$shlibpath_var"; then
+               # Make sure the rpath contains only unique directories.
+               case "$temp_rpath " in
+               *" $dir "*) ;;
+               *" $absdir "*) ;;
+               *) temp_rpath="$temp_rpath $dir" ;;
+               esac
+             fi
+           fi
+         fi # $linkmode,$pass = prog,link...
+
+         if test "$alldeplibs" = yes &&
+            { test "$deplibs_check_method" = pass_all ||
+              { test "$build_libtool_libs" = yes &&
+                test -n "$library_names"; }; }; then
+           # We only need to search for static libraries
+           continue
+         fi
+
+         if test "$installed" = no; then
+           notinst_deplibs="$notinst_deplibs $lib"
+           need_relink=yes
+         fi
+
+         if test -n "$old_archive_from_expsyms_cmds"; then
+           # figure out the soname
+           set dummy $library_names
+           realname="$2"
+           shift; shift
+           libname=`eval \\$echo \"$libname_spec\"`
+           # use dlname if we got it. it's perfectly good, no?
+           if test -n "$dlname"; then
+             soname="$dlname"
+           elif test -n "$soname_spec"; then
+             # bleh windows
+             case $host in
+             *cygwin*)
+               major=`expr $current - $age`
+               versuffix="-$major"
+               ;;
+             esac
+             eval soname=\"$soname_spec\"
+           else
+             soname="$realname"
+           fi
+
+           # Make a new name for the extract_expsyms_cmds to use
+           soroot="$soname"
+           soname=`echo $soroot | sed -e 's/^.*\///'`
+           newlib="libimp-`echo $soname | sed 's/^lib//;s/\.dll$//'`.a"
+
+           # If the library has no export list, then create one now
+           if test -f "$output_objdir/$soname-def"; then :
+           else
+             $show "extracting exported symbol list from \`$soname'"
+             save_ifs="$IFS"; IFS='~'
+             eval cmds=\"$extract_expsyms_cmds\"
+             for cmd in $cmds; do
+               IFS="$save_ifs"
+               $show "$cmd"
+               $run eval "$cmd" || exit $?
+             done
+             IFS="$save_ifs"
+           fi
+
+           # Create $newlib
+           if test -f "$output_objdir/$newlib"; then :; else
+             $show "generating import library for \`$soname'"
+             save_ifs="$IFS"; IFS='~'
+             eval cmds=\"$old_archive_from_expsyms_cmds\"
+             for cmd in $cmds; do
+               IFS="$save_ifs"
+               $show "$cmd"
+               $run eval "$cmd" || exit $?
+             done
+             IFS="$save_ifs"
+           fi
+           # make sure the library variables are pointing to the new library
+           dir=$output_objdir
+           linklib=$newlib
+         fi # test -n "$old_archive_from_expsyms_cmds"
+
+         if test "$linkmode" = prog || test "$mode" != relink; then
+           add_shlibpath=
+           add_dir=
+           add=
+           lib_linked=yes
+           case $hardcode_action in
+           immediate | unsupported)
+             if test "$hardcode_direct" = no; then
+               add="$dir/$linklib"
+             elif test "$hardcode_minus_L" = no; then
+               case $host in
+               *-*-sunos*) add_shlibpath="$dir" ;;
+               esac
+               add_dir="-L$dir"
+               add="-l$name"
+             elif test "$hardcode_shlibpath_var" = no; then
+               add_shlibpath="$dir"
+               add="-l$name"
+             else
+               lib_linked=no
+             fi
+             ;;
+           relink)
+             if test "$hardcode_direct" = yes; then
+               add="$dir/$linklib"
+             elif test "$hardcode_minus_L" = yes; then
+               add_dir="-L$dir"
+               add="-l$name"
+             elif test "$hardcode_shlibpath_var" = yes; then
+               add_shlibpath="$dir"
+               add="-l$name"
+             else
+               lib_linked=no
+             fi
+             ;;
+           *) lib_linked=no ;;
+           esac
+
+           if test "$lib_linked" != yes; then
+             $echo "$modename: configuration error: unsupported hardcode properties"
+             exit 1
+           fi
+
+           if test -n "$add_shlibpath"; then
+             case :$compile_shlibpath: in
+             *":$add_shlibpath:"*) ;;
+             *) compile_shlibpath="$compile_shlibpath$add_shlibpath:" ;;
+             esac
+           fi
+           if test "$linkmode" = prog; then
+             test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs"
+             test -n "$add" && compile_deplibs="$add $compile_deplibs"
+           else
+             test -n "$add_dir" && deplibs="$add_dir $deplibs"
+             test -n "$add" && deplibs="$add $deplibs"
+             if test "$hardcode_direct" != yes && \
+                test "$hardcode_minus_L" != yes && \
+                test "$hardcode_shlibpath_var" = yes; then
+               case :$finalize_shlibpath: in
+               *":$libdir:"*) ;;
+               *) finalize_shlibpath="$finalize_shlibpath$libdir:" ;;
+               esac
+             fi
+           fi
+         fi
+
+         if test "$linkmode" = prog || test "$mode" = relink; then
+           add_shlibpath=
+           add_dir=
+           add=
+           # Finalize command for both is simple: just hardcode it.
+           if test "$hardcode_direct" = yes; then
+             add="$libdir/$linklib"
+           elif test "$hardcode_minus_L" = yes; then
+             # Try looking first in the location we're being installed to.
+             add_dir=
+             if test -n "$inst_prefix_dir"; then
+               case "$libdir" in
+               [\\/]*)
+                 add_dir="-L$inst_prefix_dir$libdir"
+                 ;;
+               esac
+             fi
+             add_dir="$add_dir -L$libdir"
+             add="-l$name"
+           elif test "$hardcode_shlibpath_var" = yes; then
+             case :$finalize_shlibpath: in
+             *":$libdir:"*) ;;
+             *) finalize_shlibpath="$finalize_shlibpath$libdir:" ;;
+             esac
+             add="-l$name"
+           else
+             # We cannot seem to hardcode it, guess we'll fake it.
+             # Try looking first in the location we're being installed to.
+             add_dir=
+             if test -n "$inst_prefix_dir"; then
+               case "$libdir" in
+               [\\/]*)
+                 add_dir="-L$inst_prefix_dir$libdir"
+                 ;;
+               esac
+             fi
+             add_dir="$add_dir -L$libdir"
+             add="-l$name"
+           fi
+
+           if test "$linkmode" = prog; then
+             test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs"
+             test -n "$add" && finalize_deplibs="$add $finalize_deplibs"
+           else
+             test -n "$add_dir" && deplibs="$add_dir $deplibs"
+             test -n "$add" && deplibs="$add $deplibs"
+           fi
+         fi
+       elif test "$linkmode" = prog; then
+         if test "$alldeplibs" = yes &&
+            { test "$deplibs_check_method" = pass_all ||
+              { test "$build_libtool_libs" = yes &&
+                test -n "$library_names"; }; }; then
+           # We only need to search for static libraries
+           continue
+         fi
+
+         # Try to link the static library
+         # Here we assume that one of hardcode_direct or hardcode_minus_L
+         # is not unsupported.  This is valid on all known static and
+         # shared platforms.
+         if test "$hardcode_direct" != unsupported; then
+           test -n "$old_library" && linklib="$old_library"
+           compile_deplibs="$dir/$linklib $compile_deplibs"
+           finalize_deplibs="$dir/$linklib $finalize_deplibs"
+         else
+           compile_deplibs="-l$name -L$dir $compile_deplibs"
+           finalize_deplibs="-l$name -L$dir $finalize_deplibs"
+         fi
+       elif test "$build_libtool_libs" = yes; then
+         # Not a shared library
+         if test "$deplibs_check_method" != pass_all; then
+           # We're trying link a shared library against a static one
+           # but the system doesn't support it.
+
+           # Just print a warning and add the library to dependency_libs so
+           # that the program can be linked against the static library.
+           echo
+           echo "*** Warning: This library needs some functionality provided by $lib."
+           echo "*** I have the capability to make that library automatically link in when"
+           echo "*** you link to this library.  But I can only do this if you have a"
+           echo "*** shared version of the library, which you do not appear to have."
+           if test "$module" = yes; then
+             echo "*** Therefore, libtool will create a static module, that should work "
+             echo "*** as long as the dlopening application is linked with the -dlopen flag."
+             if test -z "$global_symbol_pipe"; then
+               echo
+               echo "*** However, this would only work if libtool was able to extract symbol"
+               echo "*** lists from a program, using \`nm' or equivalent, but libtool could"
+               echo "*** not find such a program.  So, this module is probably useless."
+               echo "*** \`nm' from GNU binutils and a full rebuild may help."
+             fi
+             if test "$build_old_libs" = no; then
+               build_libtool_libs=module
+               build_old_libs=yes
+             else
+               build_libtool_libs=no
+             fi
+           fi
+         else
+           convenience="$convenience $dir/$old_library"
+           old_convenience="$old_convenience $dir/$old_library"
+           deplibs="$dir/$old_library $deplibs"
+           link_static=yes
+         fi
+       fi # link shared/static library?
+
+       if test "$linkmode" = lib; then
+         if test -n "$dependency_libs" &&
+            { test "$hardcode_into_libs" != yes || test "$build_old_libs" = yes ||
+              test "$link_static" = yes; }; then
+           # Extract -R from dependency_libs
+           temp_deplibs=
+           for libdir in $dependency_libs; do
+             case $libdir in
+             -R*) temp_xrpath=`$echo "X$libdir" | $Xsed -e 's/^-R//'`
+                  case " $xrpath " in
+                  *" $temp_xrpath "*) ;;
+                  *) xrpath="$xrpath $temp_xrpath";;
+                  esac;;
+             *) temp_deplibs="$temp_deplibs $libdir";;
+             esac
+           done
+           dependency_libs="$temp_deplibs"
+         fi
+
+         newlib_search_path="$newlib_search_path $absdir"
+         # Link against this library
+         test "$link_static" = no && newdependency_libs="$abs_ladir/$laname $newdependency_libs"
+         # ... and its dependency_libs
+         tmp_libs=
+         for deplib in $dependency_libs; do
+           newdependency_libs="$deplib $newdependency_libs"
+           if test "X$duplicate_deps" = "Xyes" ; then
+             case "$tmp_libs " in
+             *" $deplib "*) specialdeplibs="$specialdeplibs $deplib" ;;
+             esac
+           fi
+           tmp_libs="$tmp_libs $deplib"
+         done
+
+         if test "$link_all_deplibs" != no; then
+           # Add the search paths of all dependency libraries
+           for deplib in $dependency_libs; do
+             case $deplib in
+             -L*) path="$deplib" ;;
+             *.la)
+               dir=`$echo "X$deplib" | $Xsed -e 's%/[^/]*$%%'`
+               test "X$dir" = "X$deplib" && dir="."
+               # We need an absolute path.
+               case $dir in
+               [\\/]* | [A-Za-z]:[\\/]*) absdir="$dir" ;;
+               *)
+                 absdir=`cd "$dir" && pwd`
+                 if test -z "$absdir"; then
+                   $echo "$modename: warning: cannot determine absolute directory name of \`$dir'" 1>&2
+                   absdir="$dir"
+                 fi
+                 ;;
+               esac
+               if grep "^installed=no" $deplib > /dev/null; then
+                 path="-L$absdir/$objdir"
+               else
+                 eval libdir=`sed -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
+                 if test -z "$libdir"; then
+                   $echo "$modename: \`$deplib' is not a valid libtool archive" 1>&2
+                   exit 1
+                 fi
+                 if test "$absdir" != "$libdir"; then
+                   $echo "$modename: warning: \`$deplib' seems to be moved" 1>&2
+                 fi
+                 path="-L$absdir"
+               fi
+               ;;
+             *) continue ;;
+             esac
+             case " $deplibs " in
+             *" $path "*) ;;
+             *) deplibs="$deplibs $path" ;;
+             esac
+           done
+         fi # link_all_deplibs != no
+       fi # linkmode = lib
+      done # for deplib in $libs
+      if test "$pass" = dlpreopen; then
+       # Link the dlpreopened libraries before other libraries
+       for deplib in $save_deplibs; do
+         deplibs="$deplib $deplibs"
+       done
+      fi
+      if test "$pass" != dlopen; then
+       test "$pass" != scan && dependency_libs="$newdependency_libs"
+       if test "$pass" != conv; then
+         # Make sure lib_search_path contains only unique directories.
+         lib_search_path=
+         for dir in $newlib_search_path; do
+           case "$lib_search_path " in
+           *" $dir "*) ;;
+           *) lib_search_path="$lib_search_path $dir" ;;
+           esac
+         done
+         newlib_search_path=
+       fi
+
+       if test "$linkmode,$pass" != "prog,link"; then
+         vars="deplibs"
+       else
+         vars="compile_deplibs finalize_deplibs"
+       fi
+       for var in $vars dependency_libs; do
+         # Add libraries to $var in reverse order
+         eval tmp_libs=\"\$$var\"
+         new_libs=
+         for deplib in $tmp_libs; do
+           case $deplib in
+           -L*) new_libs="$deplib $new_libs" ;;
+           *)
+             case " $specialdeplibs " in
+             *" $deplib "*) new_libs="$deplib $new_libs" ;;
+             *)
+               case " $new_libs " in
+               *" $deplib "*) ;;
+               *) new_libs="$deplib $new_libs" ;;
+               esac
+               ;;
+             esac
+             ;;
+           esac
+         done
+         tmp_libs=
+         for deplib in $new_libs; do
+           case $deplib in
+           -L*)
+             case " $tmp_libs " in
+             *" $deplib "*) ;;
+             *) tmp_libs="$tmp_libs $deplib" ;;
+             esac
+             ;;
+           *) tmp_libs="$tmp_libs $deplib" ;;
+           esac
+         done
+         eval $var=\"$tmp_libs\"
+       done # for var
+      fi
+      if test "$pass" = "conv" &&
+       { test "$linkmode" = "lib" || test "$linkmode" = "prog"; }; then
+       libs="$deplibs" # reset libs
+       deplibs=
+      fi
+    done # for pass
+    if test "$linkmode" = prog; then
+      dlfiles="$newdlfiles"
+      dlprefiles="$newdlprefiles"
+    fi
+
+    case $linkmode in
+    oldlib)
+      if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
+       $echo "$modename: warning: \`-dlopen' is ignored for archives" 1>&2
+      fi
+
+      if test -n "$rpath"; then
+       $echo "$modename: warning: \`-rpath' is ignored for archives" 1>&2
+      fi
+
+      if test -n "$xrpath"; then
+       $echo "$modename: warning: \`-R' is ignored for archives" 1>&2
+      fi
+
+      if test -n "$vinfo"; then
+       $echo "$modename: warning: \`-version-info' is ignored for archives" 1>&2
+      fi
+
+      if test -n "$release"; then
+       $echo "$modename: warning: \`-release' is ignored for archives" 1>&2
+      fi
+
+      if test -n "$export_symbols" || test -n "$export_symbols_regex"; then
+       $echo "$modename: warning: \`-export-symbols' is ignored for archives" 1>&2
+      fi
+
+      # Now set the variables for building old libraries.
+      build_libtool_libs=no
+      oldlibs="$output"
+      objs="$objs$old_deplibs"
+      ;;
+
+    lib)
+      # Make sure we only generate libraries of the form `libNAME.la'.
+      case $outputname in
+      lib*)
+       name=`$echo "X$outputname" | $Xsed -e 's/\.la$//' -e 's/^lib//'`
+       eval libname=\"$libname_spec\"
+       ;;
+      *)
+       if test "$module" = no; then
+         $echo "$modename: libtool library \`$output' must begin with \`lib'" 1>&2
+         $echo "$help" 1>&2
+         exit 1
+       fi
+       if test "$need_lib_prefix" != no; then
+         # Add the "lib" prefix for modules if required
+         name=`$echo "X$outputname" | $Xsed -e 's/\.la$//'`
+         eval libname=\"$libname_spec\"
+       else
+         libname=`$echo "X$outputname" | $Xsed -e 's/\.la$//'`
+       fi
+       ;;
+      esac
+
+      if test -n "$objs"; then
+       if test "$deplibs_check_method" != pass_all; then
+         $echo "$modename: cannot build libtool library \`$output' from non-libtool objects on this host:$objs" 2>&1
+         exit 1
+       else
+         echo
+         echo "*** Warning: Linking the shared library $output against the non-libtool"
+         echo "*** objects $objs is not portable!"
+         libobjs="$libobjs $objs"
+       fi
+      fi
+
+      if test "$dlself" != no; then
+       $echo "$modename: warning: \`-dlopen self' is ignored for libtool libraries" 1>&2
+      fi
+
+      set dummy $rpath
+      if test "$#" -gt 2; then
+       $echo "$modename: warning: ignoring multiple \`-rpath's for a libtool library" 1>&2
+      fi
+      install_libdir="$2"
+
+      oldlibs=
+      if test -z "$rpath"; then
+       if test "$build_libtool_libs" = yes; then
+         # Building a libtool convenience library.
+         libext=al
+         oldlibs="$output_objdir/$libname.$libext $oldlibs"
+         build_libtool_libs=convenience
+         build_old_libs=yes
+       fi
+
+       if test -n "$vinfo"; then
+         $echo "$modename: warning: \`-version-info' is ignored for convenience libraries" 1>&2
+       fi
+
+       if test -n "$release"; then
+         $echo "$modename: warning: \`-release' is ignored for convenience libraries" 1>&2
+       fi
+      else
+
+       # Parse the version information argument.
+       save_ifs="$IFS"; IFS=':'
+       set dummy $vinfo 0 0 0
+       IFS="$save_ifs"
+
+       if test -n "$8"; then
+         $echo "$modename: too many parameters to \`-version-info'" 1>&2
+         $echo "$help" 1>&2
+         exit 1
+       fi
+
+       current="$2"
+       revision="$3"
+       age="$4"
+
+       # Check that each of the things are valid numbers.
+       case $current in
+       [0-9]*) ;;
+       *)
+         $echo "$modename: CURRENT \`$current' is not a nonnegative integer" 1>&2
+         $echo "$modename: \`$vinfo' is not valid version information" 1>&2
+         exit 1
+         ;;
+       esac
+
+       case $revision in
+       [0-9]*) ;;
+       *)
+         $echo "$modename: REVISION \`$revision' is not a nonnegative integer" 1>&2
+         $echo "$modename: \`$vinfo' is not valid version information" 1>&2
+         exit 1
+         ;;
+       esac
+
+       case $age in
+       [0-9]*) ;;
+       *)
+         $echo "$modename: AGE \`$age' is not a nonnegative integer" 1>&2
+         $echo "$modename: \`$vinfo' is not valid version information" 1>&2
+         exit 1
+         ;;
+       esac
+
+       if test "$age" -gt "$current"; then
+         $echo "$modename: AGE \`$age' is greater than the current interface number \`$current'" 1>&2
+         $echo "$modename: \`$vinfo' is not valid version information" 1>&2
+         exit 1
+       fi
+
+       # Calculate the version variables.
+       major=
+       versuffix=
+       verstring=
+       case $version_type in
+       none) ;;
+
+       darwin)
+         # Like Linux, but with the current version available in
+         # verstring for coding it into the library header
+         major=.`expr $current - $age`
+         versuffix="$major.$age.$revision"
+         # Darwin ld doesn't like 0 for these options...
+         minor_current=`expr $current + 1`
+         verstring="-compatibility_version $minor_current -current_version $minor_current.$revision"
+         ;;
+
+       freebsd-aout)
+         major=".$current"
+         versuffix=".$current.$revision";
+         ;;
+
+       freebsd-elf)
+         major=".$current"
+         versuffix=".$current";
+         ;;
+
+       irix)
+         major=`expr $current - $age + 1`
+         verstring="sgi$major.$revision"
+
+         # Add in all the interfaces that we are compatible with.
+         loop=$revision
+         while test "$loop" -ne 0; do
+           iface=`expr $revision - $loop`
+           loop=`expr $loop - 1`
+           verstring="sgi$major.$iface:$verstring"
+         done
+
+         # Before this point, $major must not contain `.'.
+         major=.$major
+         versuffix="$major.$revision"
+         ;;
+
+       linux)
+         major=.`expr $current - $age`
+         versuffix="$major.$age.$revision"
+         ;;
+
+       osf)
+         major=`expr $current - $age`
+         versuffix=".$current.$age.$revision"
+         verstring="$current.$age.$revision"
+
+         # Add in all the interfaces that we are compatible with.
+         loop=$age
+         while test "$loop" -ne 0; do
+           iface=`expr $current - $loop`
+           loop=`expr $loop - 1`
+           verstring="$verstring:${iface}.0"
+         done
+
+         # Make executables depend on our current version.
+         verstring="$verstring:${current}.0"
+         ;;
+
+       sunos)
+         major=".$current"
+         versuffix=".$current.$revision"
+         ;;
+
+       windows)
+         # Use '-' rather than '.', since we only want one
+         # extension on DOS 8.3 filesystems.
+         major=`expr $current - $age`
+         versuffix="-$major"
+         ;;
+
+       *)
+         $echo "$modename: unknown library version type \`$version_type'" 1>&2
+         echo "Fatal configuration error.  See the $PACKAGE docs for more information." 1>&2
+         exit 1
+         ;;
+       esac
+
+       # Clear the version info if we defaulted, and they specified a release.
+       if test -z "$vinfo" && test -n "$release"; then
+         major=
+         verstring="0.0"
+         case $version_type in
+         darwin)
+           # we can't check for "0.0" in archive_cmds due to quoting
+           # problems, so we reset it completely
+           verstring=""
+           ;;
+         *)
+           verstring="0.0"
+           ;;
+         esac
+         if test "$need_version" = no; then
+           versuffix=
+         else
+           versuffix=".0.0"
+         fi
+       fi
+
+       # Remove version info from name if versioning should be avoided
+       if test "$avoid_version" = yes && test "$need_version" = no; then
+         major=
+         versuffix=
+         verstring=""
+       fi
+
+       # Check to see if the archive will have undefined symbols.
+       if test "$allow_undefined" = yes; then
+         if test "$allow_undefined_flag" = unsupported; then
+           $echo "$modename: warning: undefined symbols not allowed in $host shared libraries" 1>&2
+           build_libtool_libs=no
+           build_old_libs=yes
+         fi
+       else
+         # Don't allow undefined symbols.
+         allow_undefined_flag="$no_undefined_flag"
+       fi
+      fi
+
+      if test "$mode" != relink; then
+       # Remove our outputs.
+       $show "${rm}r $output_objdir/$outputname $output_objdir/$libname.* $output_objdir/${libname}${release}.*"
+       $run ${rm}r $output_objdir/$outputname $output_objdir/$libname.* $output_objdir/${libname}${release}.*
+      fi
+
+      # Now set the variables for building old libraries.
+      if test "$build_old_libs" = yes && test "$build_libtool_libs" != convenience ; then
+       oldlibs="$oldlibs $output_objdir/$libname.$libext"
+
+       # Transform .lo files to .o files.
+       oldobjs="$objs "`$echo "X$libobjs" | $SP2NL | $Xsed -e '/\.'${libext}'$/d' -e "$lo2o" | $NL2SP`
+      fi
+
+      # Eliminate all temporary directories.
+      for path in $notinst_path; do
+       lib_search_path=`echo "$lib_search_path " | sed -e 's% $path % %g'`
+       deplibs=`echo "$deplibs " | sed -e 's% -L$path % %g'`
+       dependency_libs=`echo "$dependency_libs " | sed -e 's% -L$path % %g'`
+      done
+
+      if test -n "$xrpath"; then
+       # If the user specified any rpath flags, then add them.
+       temp_xrpath=
+       for libdir in $xrpath; do
+         temp_xrpath="$temp_xrpath -R$libdir"
+         case "$finalize_rpath " in
+         *" $libdir "*) ;;
+         *) finalize_rpath="$finalize_rpath $libdir" ;;
+         esac
+       done
+       if test "$hardcode_into_libs" != yes || test "$build_old_libs" = yes; then
+         dependency_libs="$temp_xrpath $dependency_libs"
+       fi
+      fi
+
+      # Make sure dlfiles contains only unique files that won't be dlpreopened
+      old_dlfiles="$dlfiles"
+      dlfiles=
+      for lib in $old_dlfiles; do
+       case " $dlprefiles $dlfiles " in
+       *" $lib "*) ;;
+       *) dlfiles="$dlfiles $lib" ;;
+       esac
+      done
+
+      # Make sure dlprefiles contains only unique files
+      old_dlprefiles="$dlprefiles"
+      dlprefiles=
+      for lib in $old_dlprefiles; do
+       case "$dlprefiles " in
+       *" $lib "*) ;;
+       *) dlprefiles="$dlprefiles $lib" ;;
+       esac
+      done
+
+      if test "$build_libtool_libs" = yes; then
+       if test -n "$rpath"; then
+         case $host in
+         *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos*)
+           # these systems don't actually have a c library (as such)!
+           ;;
+         *-*-rhapsody* | *-*-darwin1.[012])
+           # Rhapsody C library is in the System framework
+           deplibs="$deplibs -framework System"
+           ;;
+         *-*-netbsd*)
+           # Don't link with libc until the a.out ld.so is fixed.
+           ;;
+         *-*-openbsd*)
+           # Do not include libc due to us having libc/libc_r.
+           ;;
+         *)
+           # Add libc to deplibs on all other systems if necessary.
+           if test "$build_libtool_need_lc" = "yes"; then
+             deplibs="$deplibs -lc"
+           fi
+           ;;
+         esac
+       fi
+
+       # Transform deplibs into only deplibs that can be linked in shared.
+       name_save=$name
+       libname_save=$libname
+       release_save=$release
+       versuffix_save=$versuffix
+       major_save=$major
+       # I'm not sure if I'm treating the release correctly.  I think
+       # release should show up in the -l (ie -lgmp5) so we don't want to
+       # add it in twice.  Is that correct?
+       release=""
+       versuffix=""
+       major=""
+       newdeplibs=
+       droppeddeps=no
+       case $deplibs_check_method in
+       pass_all)
+         # Don't check for shared/static.  Everything works.
+         # This might be a little naive.  We might want to check
+         # whether the library exists or not.  But this is on
+         # osf3 & osf4 and I'm not really sure... Just
+         # implementing what was already the behaviour.
+         newdeplibs=$deplibs
+         ;;
+       test_compile)
+         # This code stresses the "libraries are programs" paradigm to its
+         # limits. Maybe even breaks it.  We compile a program, linking it
+         # against the deplibs as a proxy for the library.  Then we can check
+         # whether they linked in statically or dynamically with ldd.
+         $rm conftest.c
+         cat > conftest.c <<EOF
+         int main() { return 0; }
+EOF
+         $rm conftest
+         $CC -o conftest conftest.c $deplibs
+         if test "$?" -eq 0 ; then
+           ldd_output=`ldd conftest`
+           for i in $deplibs; do
+             name="`expr $i : '-l\(.*\)'`"
+             # If $name is empty we are operating on a -L argument.
+             if test -n "$name" && test "$name" != "0"; then
+               libname=`eval \\$echo \"$libname_spec\"`
+               deplib_matches=`eval \\$echo \"$library_names_spec\"`
+               set dummy $deplib_matches
+               deplib_match=$2
+               if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0 ; then
+                 newdeplibs="$newdeplibs $i"
+               else
+                 droppeddeps=yes
+                 echo
+                 echo "*** Warning: This library needs some functionality provided by $i."
+                 echo "*** I have the capability to make that library automatically link in when"
+                 echo "*** you link to this library.  But I can only do this if you have a"
+                 echo "*** shared version of the library, which you do not appear to have."
+               fi
+             else
+               newdeplibs="$newdeplibs $i"
+             fi
+           done
+         else
+           # Error occured in the first compile.  Let's try to salvage the situation:
+           # Compile a seperate program for each library.
+           for i in $deplibs; do
+             name="`expr $i : '-l\(.*\)'`"
+            # If $name is empty we are operating on a -L argument.
+             if test -n "$name" && test "$name" != "0"; then
+               $rm conftest
+               $CC -o conftest conftest.c $i
+               # Did it work?
+               if test "$?" -eq 0 ; then
+                 ldd_output=`ldd conftest`
+                 libname=`eval \\$echo \"$libname_spec\"`
+                 deplib_matches=`eval \\$echo \"$library_names_spec\"`
+                 set dummy $deplib_matches
+                 deplib_match=$2
+                 if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0 ; then
+                   newdeplibs="$newdeplibs $i"
+                 else
+                   droppeddeps=yes
+                   echo
+                   echo "*** Warning: This library needs some functionality provided by $i."
+                   echo "*** I have the capability to make that library automatically link in when"
+                   echo "*** you link to this library.  But I can only do this if you have a"
+                   echo "*** shared version of the library, which you do not appear to have."
+                 fi
+               else
+                 droppeddeps=yes
+                 echo
+                 echo "*** Warning!  Library $i is needed by this library but I was not able to"
+                 echo "***  make it link in!  You will probably need to install it or some"
+                 echo "*** library that it depends on before this library will be fully"
+                 echo "*** functional.  Installing it before continuing would be even better."
+               fi
+             else
+               newdeplibs="$newdeplibs $i"
+             fi
+           done
+         fi
+         ;;
+       file_magic*)
+         set dummy $deplibs_check_method
+         file_magic_regex=`expr "$deplibs_check_method" : "$2 \(.*\)"`
+         for a_deplib in $deplibs; do
+           name="`expr $a_deplib : '-l\(.*\)'`"
+           # If $name is empty we are operating on a -L argument.
+           if test -n "$name" && test "$name" != "0"; then
+             libname=`eval \\$echo \"$libname_spec\"`
+             for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
+                   potential_libs=`ls $i/$libname[.-]* 2>/dev/null`
+                   for potent_lib in $potential_libs; do
+                     # Follow soft links.
+                     if ls -lLd "$potent_lib" 2>/dev/null \
+                        | grep " -> " >/dev/null; then
+                       continue
+                     fi
+                     # The statement above tries to avoid entering an
+                     # endless loop below, in case of cyclic links.
+                     # We might still enter an endless loop, since a link
+                     # loop can be closed while we follow links,
+                     # but so what?
+                     potlib="$potent_lib"
+                     while test -h "$potlib" 2>/dev/null; do
+                       potliblink=`ls -ld $potlib | sed 's/.* -> //'`
+                       case $potliblink in
+                       [\\/]* | [A-Za-z]:[\\/]*) potlib="$potliblink";;
+                       *) potlib=`$echo "X$potlib" | $Xsed -e 's,[^/]*$,,'`"$potliblink";;
+                       esac
+                     done
+                     if eval $file_magic_cmd \"\$potlib\" 2>/dev/null \
+                        | sed 10q \
+                        | egrep "$file_magic_regex" > /dev/null; then
+                       newdeplibs="$newdeplibs $a_deplib"
+                       a_deplib=""
+                       break 2
+                     fi
+                   done
+             done
+             if test -n "$a_deplib" ; then
+               droppeddeps=yes
+               echo
+               echo "*** Warning: This library needs some functionality provided by $a_deplib."
+               echo "*** I have the capability to make that library automatically link in when"
+               echo "*** you link to this library.  But I can only do this if you have a"
+               echo "*** shared version of the library, which you do not appear to have."
+             fi
+           else
+             # Add a -L argument.
+             newdeplibs="$newdeplibs $a_deplib"
+           fi
+         done # Gone through all deplibs.
+         ;;
+       match_pattern*)
+         set dummy $deplibs_check_method
+         match_pattern_regex=`expr "$deplibs_check_method" : "$2 \(.*\)"`
+         for a_deplib in $deplibs; do
+           name="`expr $a_deplib : '-l\(.*\)'`"
+           # If $name is empty we are operating on a -L argument.
+           if test -n "$name" && test "$name" != "0"; then
+             libname=`eval \\$echo \"$libname_spec\"`
+             for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
+               potential_libs=`ls $i/$libname[.-]* 2>/dev/null`
+               for potent_lib in $potential_libs; do
+                 if eval echo \"$potent_lib\" 2>/dev/null \
+                     | sed 10q \
+                     | egrep "$match_pattern_regex" > /dev/null; then
+                   newdeplibs="$newdeplibs $a_deplib"
+                   a_deplib=""
+                   break 2
+                 fi
+               done
+             done
+             if test -n "$a_deplib" ; then
+               droppeddeps=yes
+               echo
+               echo "*** Warning: This library needs some functionality provided by $a_deplib."
+               echo "*** I have the capability to make that library automatically link in when"
+               echo "*** you link to this library.  But I can only do this if you have a"
+               echo "*** shared version of the library, which you do not appear to have."
+             fi
+           else
+             # Add a -L argument.
+             newdeplibs="$newdeplibs $a_deplib"
+           fi
+         done # Gone through all deplibs.
+         ;;
+       none | unknown | *)
+         newdeplibs=""
+         if $echo "X $deplibs" | $Xsed -e 's/ -lc$//' \
+              -e 's/ -[LR][^ ]*//g' -e 's/[    ]//g' |
+            grep . >/dev/null; then
+           echo
+           if test "X$deplibs_check_method" = "Xnone"; then
+             echo "*** Warning: inter-library dependencies are not supported in this platform."
+           else
+             echo "*** Warning: inter-library dependencies are not known to be supported."
+           fi
+           echo "*** All declared inter-library dependencies are being dropped."
+           droppeddeps=yes
+         fi
+         ;;
+       esac
+       versuffix=$versuffix_save
+       major=$major_save
+       release=$release_save
+       libname=$libname_save
+       name=$name_save
+
+       case $host in
+       *-*-rhapsody* | *-*-darwin1.[012])
+         # On Rhapsody replace the C library is the System framework
+         newdeplibs=`$echo "X $newdeplibs" | $Xsed -e 's/ -lc / -framework System /'`
+         ;;
+       esac
+
+       if test "$droppeddeps" = yes; then
+         if test "$module" = yes; then
+           echo
+           echo "*** Warning: libtool could not satisfy all declared inter-library"
+           echo "*** dependencies of module $libname.  Therefore, libtool will create"
+           echo "*** a static module, that should work as long as the dlopening"
+           echo "*** application is linked with the -dlopen flag."
+           if test -z "$global_symbol_pipe"; then
+             echo
+             echo "*** However, this would only work if libtool was able to extract symbol"
+             echo "*** lists from a program, using \`nm' or equivalent, but libtool could"
+             echo "*** not find such a program.  So, this module is probably useless."
+             echo "*** \`nm' from GNU binutils and a full rebuild may help."
+           fi
+           if test "$build_old_libs" = no; then
+             oldlibs="$output_objdir/$libname.$libext"
+             build_libtool_libs=module
+             build_old_libs=yes
+           else
+             build_libtool_libs=no
+           fi
+         else
+           echo "*** The inter-library dependencies that have been dropped here will be"
+           echo "*** automatically added whenever a program is linked with this library"
+           echo "*** or is declared to -dlopen it."
+
+           if test "$allow_undefined" = no; then
+             echo
+             echo "*** Since this library must not contain undefined symbols,"
+             echo "*** because either the platform does not support them or"
+             echo "*** it was explicitly requested with -no-undefined,"
+             echo "*** libtool will only create a static version of it."
+             if test "$build_old_libs" = no; then
+               oldlibs="$output_objdir/$libname.$libext"
+               build_libtool_libs=module
+               build_old_libs=yes
+             else
+               build_libtool_libs=no
+             fi
+           fi
+         fi
+       fi
+       # Done checking deplibs!
+       deplibs=$newdeplibs
+      fi
+
+      # All the library-specific variables (install_libdir is set above).
+      library_names=
+      old_library=
+      dlname=
+
+      # Test again, we may have decided not to build it any more
+      if test "$build_libtool_libs" = yes; then
+       if test "$hardcode_into_libs" = yes; then
+         # Hardcode the library paths
+         hardcode_libdirs=
+         dep_rpath=
+         rpath="$finalize_rpath"
+         test "$mode" != relink && rpath="$compile_rpath$rpath"
+         for libdir in $rpath; do
+           if test -n "$hardcode_libdir_flag_spec"; then
+             if test -n "$hardcode_libdir_separator"; then
+               if test -z "$hardcode_libdirs"; then
+                 hardcode_libdirs="$libdir"
+               else
+                 # Just accumulate the unique libdirs.
+                 case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
+                 *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
+                   ;;
+                 *)
+                   hardcode_libdirs="$hardcode_libdirs$hardcode_libdir_separator$libdir"
+                   ;;
+                 esac
+               fi
+             else
+               eval flag=\"$hardcode_libdir_flag_spec\"
+               dep_rpath="$dep_rpath $flag"
+             fi
+           elif test -n "$runpath_var"; then
+             case "$perm_rpath " in
+             *" $libdir "*) ;;
+             *) perm_rpath="$perm_rpath $libdir" ;;
+             esac
+           fi
+         done
+         # Substitute the hardcoded libdirs into the rpath.
+         if test -n "$hardcode_libdir_separator" &&
+            test -n "$hardcode_libdirs"; then
+           libdir="$hardcode_libdirs"
+           eval dep_rpath=\"$hardcode_libdir_flag_spec\"
+         fi
+         if test -n "$runpath_var" && test -n "$perm_rpath"; then
+           # We should set the runpath_var.
+           rpath=
+           for dir in $perm_rpath; do
+             rpath="$rpath$dir:"
+           done
+           eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var"
+         fi
+         test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs"
+       fi
+
+       shlibpath="$finalize_shlibpath"
+       test "$mode" != relink && shlibpath="$compile_shlibpath$shlibpath"
+       if test -n "$shlibpath"; then
+         eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var"
+       fi
+
+       # Get the real and link names of the library.
+       eval library_names=\"$library_names_spec\"
+       set dummy $library_names
+       realname="$2"
+       shift; shift
+
+       if test -n "$soname_spec"; then
+         eval soname=\"$soname_spec\"
+       else
+         soname="$realname"
+       fi
+       test -z "$dlname" && dlname=$soname
+
+       lib="$output_objdir/$realname"
+       for link
+       do
+         linknames="$linknames $link"
+       done
+
+       # Ensure that we have .o objects for linkers which dislike .lo
+       # (e.g. aix) in case we are running --disable-static
+       for obj in $libobjs; do
+         xdir=`$echo "X$obj" | $Xsed -e 's%/[^/]*$%%'`
+         if test "X$xdir" = "X$obj"; then
+           xdir="."
+         else
+           xdir="$xdir"
+         fi
+         baseobj=`$echo "X$obj" | $Xsed -e 's%^.*/%%'`
+         oldobj=`$echo "X$baseobj" | $Xsed -e "$lo2o"`
+         if test ! -f $xdir/$oldobj; then
+           $show "(cd $xdir && ${LN_S} $baseobj $oldobj)"
+           $run eval '(cd $xdir && ${LN_S} $baseobj $oldobj)' || exit $?
+         fi
+       done
+
+       # Use standard objects if they are pic
+       test -z "$pic_flag" && libobjs=`$echo "X$libobjs" | $SP2NL | $Xsed -e "$lo2o" | $NL2SP`
+
+       # Prepare the list of exported symbols
+       if test -z "$export_symbols"; then
+         if test "$always_export_symbols" = yes || test -n "$export_symbols_regex"; then
+           $show "generating symbol list for \`$libname.la'"
+           export_symbols="$output_objdir/$libname.exp"
+           $run $rm $export_symbols
+           eval cmds=\"$export_symbols_cmds\"
+           save_ifs="$IFS"; IFS='~'
+           for cmd in $cmds; do
+             IFS="$save_ifs"
+             $show "$cmd"
+             $run eval "$cmd" || exit $?
+           done
+           IFS="$save_ifs"
+           if test -n "$export_symbols_regex"; then
+             $show "egrep -e \"$export_symbols_regex\" \"$export_symbols\" > \"${export_symbols}T\""
+             $run eval 'egrep -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
+             $show "$mv \"${export_symbols}T\" \"$export_symbols\""
+             $run eval '$mv "${export_symbols}T" "$export_symbols"'
+           fi
+         fi
+       fi
+
+       if test -n "$export_symbols" && test -n "$include_expsyms"; then
+         $run eval '$echo "X$include_expsyms" | $SP2NL >> "$export_symbols"'
+       fi
+
+       if test -n "$convenience"; then
+         if test -n "$whole_archive_flag_spec"; then
+           eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
+         else
+           gentop="$output_objdir/${outputname}x"
+           $show "${rm}r $gentop"
+           $run ${rm}r "$gentop"
+           $show "mkdir $gentop"
+           $run mkdir "$gentop"
+           status=$?
+           if test "$status" -ne 0 && test ! -d "$gentop"; then
+             exit $status
+           fi
+           generated="$generated $gentop"
+
+           for xlib in $convenience; do
+             # Extract the objects.
+             case $xlib in
+             [\\/]* | [A-Za-z]:[\\/]*) xabs="$xlib" ;;
+             *) xabs=`pwd`"/$xlib" ;;
+             esac
+             xlib=`$echo "X$xlib" | $Xsed -e 's%^.*/%%'`
+             xdir="$gentop/$xlib"
+
+             $show "${rm}r $xdir"
+             $run ${rm}r "$xdir"
+             $show "mkdir $xdir"
+             $run mkdir "$xdir"
+             status=$?
+             if test "$status" -ne 0 && test ! -d "$xdir"; then
+               exit $status
+             fi
+             $show "(cd $xdir && $AR x $xabs)"
+             $run eval "(cd \$xdir && $AR x \$xabs)" || exit $?
+
+             libobjs="$libobjs "`find $xdir -name \*.o -print -o -name \*.lo -print | $NL2SP`
+           done
+         fi
+       fi
+
+       if test "$thread_safe" = yes && test -n "$thread_safe_flag_spec"; then
+         eval flag=\"$thread_safe_flag_spec\"
+         linker_flags="$linker_flags $flag"
+       fi
+
+       # Make a backup of the uninstalled library when relinking
+       if test "$mode" = relink; then
+         $run eval '(cd $output_objdir && $rm ${realname}U && $mv $realname ${realname}U)' || exit $?
+       fi
+
+       # Do each of the archive commands.
+       if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
+         eval cmds=\"$archive_expsym_cmds\"
+       else
+         eval cmds=\"$archive_cmds\"
+       fi
+       save_ifs="$IFS"; IFS='~'
+       for cmd in $cmds; do
+         IFS="$save_ifs"
+         $show "$cmd"
+         $run eval "$cmd" || exit $?
+       done
+       IFS="$save_ifs"
+
+       # Restore the uninstalled library and exit
+       if test "$mode" = relink; then
+         $run eval '(cd $output_objdir && $rm ${realname}T && $mv $realname ${realname}T && $mv "$realname"U $realname)' || exit $?
+         exit 0
+       fi
+
+       # Create links to the real library.
+       for linkname in $linknames; do
+         if test "$realname" != "$linkname"; then
+           $show "(cd $output_objdir && $rm $linkname && $LN_S $realname $linkname)"
+           $run eval '(cd $output_objdir && $rm $linkname && $LN_S $realname $linkname)' || exit $?
+         fi
+       done
+
+       # If -module or -export-dynamic was specified, set the dlname.
+       if test "$module" = yes || test "$export_dynamic" = yes; then
+         # On all known operating systems, these are identical.
+         dlname="$soname"
+       fi
+      fi
+      ;;
+
+    obj)
+      if test -n "$deplibs"; then
+       $echo "$modename: warning: \`-l' and \`-L' are ignored for objects" 1>&2
+      fi
+
+      if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
+       $echo "$modename: warning: \`-dlopen' is ignored for objects" 1>&2
+      fi
+
+      if test -n "$rpath"; then
+       $echo "$modename: warning: \`-rpath' is ignored for objects" 1>&2
+      fi
+
+      if test -n "$xrpath"; then
+       $echo "$modename: warning: \`-R' is ignored for objects" 1>&2
+      fi
+
+      if test -n "$vinfo"; then
+       $echo "$modename: warning: \`-version-info' is ignored for objects" 1>&2
+      fi
+
+      if test -n "$release"; then
+       $echo "$modename: warning: \`-release' is ignored for objects" 1>&2
+      fi
+
+      case $output in
+      *.lo)
+       if test -n "$objs$old_deplibs"; then
+         $echo "$modename: cannot build library object \`$output' from non-libtool objects" 1>&2
+         exit 1
+       fi
+       libobj="$output"
+       obj=`$echo "X$output" | $Xsed -e "$lo2o"`
+       ;;
+      *)
+       libobj=
+       obj="$output"
+       ;;
+      esac
+
+      # Delete the old objects.
+      $run $rm $obj $libobj
+
+      # Objects from convenience libraries.  This assumes
+      # single-version convenience libraries.  Whenever we create
+      # different ones for PIC/non-PIC, this we'll have to duplicate
+      # the extraction.
+      reload_conv_objs=
+      gentop=
+      # reload_cmds runs $LD directly, so let us get rid of
+      # -Wl from whole_archive_flag_spec
+      wl=
+
+      if test -n "$convenience"; then
+       if test -n "$whole_archive_flag_spec"; then
+         eval reload_conv_objs=\"\$reload_objs $whole_archive_flag_spec\"
+       else
+         gentop="$output_objdir/${obj}x"
+         $show "${rm}r $gentop"
+         $run ${rm}r "$gentop"
+         $show "mkdir $gentop"
+         $run mkdir "$gentop"
+         status=$?
+         if test "$status" -ne 0 && test ! -d "$gentop"; then
+           exit $status
+         fi
+         generated="$generated $gentop"
+
+         for xlib in $convenience; do
+           # Extract the objects.
+           case $xlib in
+           [\\/]* | [A-Za-z]:[\\/]*) xabs="$xlib" ;;
+           *) xabs=`pwd`"/$xlib" ;;
+           esac
+           xlib=`$echo "X$xlib" | $Xsed -e 's%^.*/%%'`
+           xdir="$gentop/$xlib"
+
+           $show "${rm}r $xdir"
+           $run ${rm}r "$xdir"
+           $show "mkdir $xdir"
+           $run mkdir "$xdir"
+           status=$?
+           if test "$status" -ne 0 && test ! -d "$xdir"; then
+             exit $status
+           fi
+           $show "(cd $xdir && $AR x $xabs)"
+           $run eval "(cd \$xdir && $AR x \$xabs)" || exit $?
+
+           reload_conv_objs="$reload_objs "`find $xdir -name \*.o -print -o -name \*.lo -print | $NL2SP`
+         done
+       fi
+      fi
+
+      # Create the old-style object.
+      reload_objs="$objs$old_deplibs "`$echo "X$libobjs" | $SP2NL | $Xsed -e '/\.'${libext}$'/d' -e '/\.lib$/d' -e "$lo2o" | $NL2SP`" $reload_conv_objs" ### testsuite: skip nested quoting test
+
+      output="$obj"
+      eval cmds=\"$reload_cmds\"
+      save_ifs="$IFS"; IFS='~'
+      for cmd in $cmds; do
+       IFS="$save_ifs"
+       $show "$cmd"
+       $run eval "$cmd" || exit $?
+      done
+      IFS="$save_ifs"
+
+      # Exit if we aren't doing a library object file.
+      if test -z "$libobj"; then
+       if test -n "$gentop"; then
+         $show "${rm}r $gentop"
+         $run ${rm}r $gentop
+       fi
+
+       exit 0
+      fi
+
+      if test "$build_libtool_libs" != yes; then
+       if test -n "$gentop"; then
+         $show "${rm}r $gentop"
+         $run ${rm}r $gentop
+       fi
+
+       # Create an invalid libtool object if no PIC, so that we don't
+       # accidentally link it into a program.
+       $show "echo timestamp > $libobj"
+       $run eval "echo timestamp > $libobj" || exit $?
+       exit 0
+      fi
+
+      if test -n "$pic_flag" || test "$pic_mode" != default; then
+       # Only do commands if we really have different PIC objects.
+       reload_objs="$libobjs $reload_conv_objs"
+       output="$libobj"
+       eval cmds=\"$reload_cmds\"
+       save_ifs="$IFS"; IFS='~'
+       for cmd in $cmds; do
+         IFS="$save_ifs"
+         $show "$cmd"
+         $run eval "$cmd" || exit $?
+       done
+       IFS="$save_ifs"
+      else
+       # Just create a symlink.
+       $show $rm $libobj
+       $run $rm $libobj
+       xdir=`$echo "X$libobj" | $Xsed -e 's%/[^/]*$%%'`
+       if test "X$xdir" = "X$libobj"; then
+         xdir="."
+       else
+         xdir="$xdir"
+       fi
+       baseobj=`$echo "X$libobj" | $Xsed -e 's%^.*/%%'`
+       oldobj=`$echo "X$baseobj" | $Xsed -e "$lo2o"`
+       $show "(cd $xdir && $LN_S $oldobj $baseobj)"
+       $run eval '(cd $xdir && $LN_S $oldobj $baseobj)' || exit $?
+      fi
+
+      if test -n "$gentop"; then
+       $show "${rm}r $gentop"
+       $run ${rm}r $gentop
+      fi
+
+      exit 0
+      ;;
+
+    prog)
+      case $host in
+       *cygwin*) output=`echo $output | sed -e 's,.exe$,,;s,$,.exe,'` ;;
+      esac
+      if test -n "$vinfo"; then
+       $echo "$modename: warning: \`-version-info' is ignored for programs" 1>&2
+      fi
+
+      if test -n "$release"; then
+       $echo "$modename: warning: \`-release' is ignored for programs" 1>&2
+      fi
+
+      if test "$preload" = yes; then
+       if test "$dlopen_support" = unknown && test "$dlopen_self" = unknown &&
+          test "$dlopen_self_static" = unknown; then
+         $echo "$modename: warning: \`AC_LIBTOOL_DLOPEN' not used. Assuming no dlopen support."
+       fi
+      fi
+
+      case $host in
+      *-*-rhapsody* | *-*-darwin1.[012])
+       # On Rhapsody replace the C library is the System framework
+       compile_deplibs=`$echo "X $compile_deplibs" | $Xsed -e 's/ -lc / -framework System /'`
+       finalize_deplibs=`$echo "X $finalize_deplibs" | $Xsed -e 's/ -lc / -framework System /'`
+       ;;
+      esac
+
+      compile_command="$compile_command $compile_deplibs"
+      finalize_command="$finalize_command $finalize_deplibs"
+
+      if test -n "$rpath$xrpath"; then
+       # If the user specified any rpath flags, then add them.
+       for libdir in $rpath $xrpath; do
+         # This is the magic to use -rpath.
+         case "$finalize_rpath " in
+         *" $libdir "*) ;;
+         *) finalize_rpath="$finalize_rpath $libdir" ;;
+         esac
+       done
+      fi
+
+      # Now hardcode the library paths
+      rpath=
+      hardcode_libdirs=
+      for libdir in $compile_rpath $finalize_rpath; do
+       if test -n "$hardcode_libdir_flag_spec"; then
+         if test -n "$hardcode_libdir_separator"; then
+           if test -z "$hardcode_libdirs"; then
+             hardcode_libdirs="$libdir"
+           else
+             # Just accumulate the unique libdirs.
+             case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
+             *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
+               ;;
+             *)
+               hardcode_libdirs="$hardcode_libdirs$hardcode_libdir_separator$libdir"
+               ;;
+             esac
+           fi
+         else
+           eval flag=\"$hardcode_libdir_flag_spec\"
+           rpath="$rpath $flag"
+         fi
+       elif test -n "$runpath_var"; then
+         case "$perm_rpath " in
+         *" $libdir "*) ;;
+         *) perm_rpath="$perm_rpath $libdir" ;;
+         esac
+       fi
+       case $host in
+       *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2*)
+         case :$dllsearchpath: in
+         *":$libdir:"*) ;;
+         *) dllsearchpath="$dllsearchpath:$libdir";;
+         esac
+         ;;
+       esac
+      done
+      # Substitute the hardcoded libdirs into the rpath.
+      if test -n "$hardcode_libdir_separator" &&
+        test -n "$hardcode_libdirs"; then
+       libdir="$hardcode_libdirs"
+       eval rpath=\" $hardcode_libdir_flag_spec\"
+      fi
+      compile_rpath="$rpath"
+
+      rpath=
+      hardcode_libdirs=
+      for libdir in $finalize_rpath; do
+       if test -n "$hardcode_libdir_flag_spec"; then
+         if test -n "$hardcode_libdir_separator"; then
+           if test -z "$hardcode_libdirs"; then
+             hardcode_libdirs="$libdir"
+           else
+             # Just accumulate the unique libdirs.
+             case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
+             *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
+               ;;
+             *)
+               hardcode_libdirs="$hardcode_libdirs$hardcode_libdir_separator$libdir"
+               ;;
+             esac
+           fi
+         else
+           eval flag=\"$hardcode_libdir_flag_spec\"
+           rpath="$rpath $flag"
+         fi
+       elif test -n "$runpath_var"; then
+         case "$finalize_perm_rpath " in
+         *" $libdir "*) ;;
+         *) finalize_perm_rpath="$finalize_perm_rpath $libdir" ;;
+         esac
+       fi
+      done
+      # Substitute the hardcoded libdirs into the rpath.
+      if test -n "$hardcode_libdir_separator" &&
+        test -n "$hardcode_libdirs"; then
+       libdir="$hardcode_libdirs"
+       eval rpath=\" $hardcode_libdir_flag_spec\"
+      fi
+      finalize_rpath="$rpath"
+
+      if test -n "$libobjs" && test "$build_old_libs" = yes; then
+       # Transform all the library objects into standard objects.
+       compile_command=`$echo "X$compile_command" | $SP2NL | $Xsed -e "$lo2o" | $NL2SP`
+       finalize_command=`$echo "X$finalize_command" | $SP2NL | $Xsed -e "$lo2o" | $NL2SP`
+      fi
+
+      dlsyms=
+      if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
+       if test -n "$NM" && test -n "$global_symbol_pipe"; then
+         dlsyms="${outputname}S.c"
+       else
+         $echo "$modename: not configured to extract global symbols from dlpreopened files" 1>&2
+       fi
+      fi
+
+      if test -n "$dlsyms"; then
+       case $dlsyms in
+       "") ;;
+       *.c)
+         # Discover the nlist of each of the dlfiles.
+         nlist="$output_objdir/${outputname}.nm"
+
+         $show "$rm $nlist ${nlist}S ${nlist}T"
+         $run $rm "$nlist" "${nlist}S" "${nlist}T"
+
+         # Parse the name list into a source file.
+         $show "creating $output_objdir/$dlsyms"
+
+         test -z "$run" && $echo > "$output_objdir/$dlsyms" "\
+/* $dlsyms - symbol resolution table for \`$outputname' dlsym emulation. */
+/* Generated by $PROGRAM - GNU $PACKAGE $VERSION$TIMESTAMP */
+
+#ifdef __cplusplus
+extern \"C\" {
+#endif
+
+/* Prevent the only kind of declaration conflicts we can make. */
+#define lt_preloaded_symbols some_other_symbol
+
+/* External symbol declarations for the compiler. */\
+"
+
+         if test "$dlself" = yes; then
+           $show "generating symbol list for \`$output'"
+
+           test -z "$run" && $echo ': @PROGRAM@ ' > "$nlist"
+
+           # Add our own program objects to the symbol list.
+           progfiles=`$echo "X$objs$old_deplibs" | $SP2NL | $Xsed -e "$lo2o" | $NL2SP`
+           for arg in $progfiles; do
+             $show "extracting global C symbols from \`$arg'"
+             $run eval "$NM $arg | $global_symbol_pipe >> '$nlist'"
+           done
+
+           if test -n "$exclude_expsyms"; then
+             $run eval 'egrep -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T'
+             $run eval '$mv "$nlist"T "$nlist"'
+           fi
+
+           if test -n "$export_symbols_regex"; then
+             $run eval 'egrep -e "$export_symbols_regex" "$nlist" > "$nlist"T'
+             $run eval '$mv "$nlist"T "$nlist"'
+           fi
+
+           # Prepare the list of exported symbols
+           if test -z "$export_symbols"; then
+             export_symbols="$output_objdir/$output.exp"
+             $run $rm $export_symbols
+             $run eval "sed -n -e '/^: @PROGRAM@$/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"'
+           else
+             $run eval "sed -e 's/\([][.*^$]\)/\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$output.exp"'
+             $run eval 'grep -f "$output_objdir/$output.exp" < "$nlist" > "$nlist"T'
+             $run eval 'mv "$nlist"T "$nlist"'
+           fi
+         fi
+
+         for arg in $dlprefiles; do
+           $show "extracting global C symbols from \`$arg'"
+           name=`echo "$arg" | sed -e 's%^.*/%%'`
+           $run eval 'echo ": $name " >> "$nlist"'
+           $run eval "$NM $arg | $global_symbol_pipe >> '$nlist'"
+         done
+
+         if test -z "$run"; then
+           # Make sure we have at least an empty file.
+           test -f "$nlist" || : > "$nlist"
+
+           if test -n "$exclude_expsyms"; then
+             egrep -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T
+             $mv "$nlist"T "$nlist"
+           fi
+
+           # Try sorting and uniquifying the output.
+           if grep -v "^: " < "$nlist" | sort +2 | uniq > "$nlist"S; then
+             :
+           else
+             grep -v "^: " < "$nlist" > "$nlist"S
+           fi
+
+           if test -f "$nlist"S; then
+             eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$dlsyms"'
+           else
+             echo '/* NONE */' >> "$output_objdir/$dlsyms"
+           fi
+
+           $echo >> "$output_objdir/$dlsyms" "\
+
+#undef lt_preloaded_symbols
+
+#if defined (__STDC__) && __STDC__
+# define lt_ptr void *
+#else
+# define lt_ptr char *
+# define const
+#endif
+
+/* The mapping between symbol names and symbols. */
+const struct {
+  const char *name;
+  lt_ptr address;
+}
+lt_preloaded_symbols[] =
+{\
+"
+
+           eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$dlsyms"
+
+           $echo >> "$output_objdir/$dlsyms" "\
+  {0, (lt_ptr) 0}
+};
+
+/* This works around a problem in FreeBSD linker */
+#ifdef FREEBSD_WORKAROUND
+static const void *lt_preloaded_setup() {
+  return lt_preloaded_symbols;
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif\
+"
+         fi
+
+         pic_flag_for_symtable=
+         case $host in
+         # compiling the symbol table file with pic_flag works around
+         # a FreeBSD bug that causes programs to crash when -lm is
+         # linked before any other PIC object.  But we must not use
+         # pic_flag when linking with -static.  The problem exists in
+         # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1.
+         *-*-freebsd2*|*-*-freebsd3.0*|*-*-freebsdelf3.0*)
+           case "$compile_command " in
+           *" -static "*) ;;
+           *) pic_flag_for_symtable=" $pic_flag -DPIC -DFREEBSD_WORKAROUND";;
+           esac;;
+         *-*-hpux*)
+           case "$compile_command " in
+           *" -static "*) ;;
+           *) pic_flag_for_symtable=" $pic_flag -DPIC";;
+           esac
+         esac
+
+         # Now compile the dynamic symbol file.
+         $show "(cd $output_objdir && $CC -c$no_builtin_flag$pic_flag_for_symtable \"$dlsyms\")"
+         $run eval '(cd $output_objdir && $CC -c$no_builtin_flag$pic_flag_for_symtable "$dlsyms")' || exit $?
+
+         # Clean up the generated files.
+         $show "$rm $output_objdir/$dlsyms $nlist ${nlist}S ${nlist}T"
+         $run $rm "$output_objdir/$dlsyms" "$nlist" "${nlist}S" "${nlist}T"
+
+         # Transform the symbol file into the correct name.
+         compile_command=`$echo "X$compile_command" | $Xsed -e "s%@SYMFILE@%$output_objdir/${outputname}S.${objext}%"`
+         finalize_command=`$echo "X$finalize_command" | $Xsed -e "s%@SYMFILE@%$output_objdir/${outputname}S.${objext}%"`
+         ;;
+       *)
+         $echo "$modename: unknown suffix for \`$dlsyms'" 1>&2
+         exit 1
+         ;;
+       esac
+      else
+       # We keep going just in case the user didn't refer to
+       # lt_preloaded_symbols.  The linker will fail if global_symbol_pipe
+       # really was required.
+
+       # Nullify the symbol file.
+       compile_command=`$echo "X$compile_command" | $Xsed -e "s% @SYMFILE@%%"`
+       finalize_command=`$echo "X$finalize_command" | $Xsed -e "s% @SYMFILE@%%"`
+      fi
+
+      if test "$need_relink" = no || test "$build_libtool_libs" != yes; then
+       # Replace the output file specification.
+       compile_command=`$echo "X$compile_command" | $Xsed -e 's%@OUTPUT@%'"$output"'%g'`
+       link_command="$compile_command$compile_rpath"
+
+       # We have no uninstalled library dependencies, so finalize right now.
+       $show "$link_command"
+       $run eval "$link_command"
+       status=$?
+
+       # Delete the generated files.
+       if test -n "$dlsyms"; then
+         $show "$rm $output_objdir/${outputname}S.${objext}"
+         $run $rm "$output_objdir/${outputname}S.${objext}"
+       fi
+
+       exit $status
+      fi
+
+      if test -n "$shlibpath_var"; then
+       # We should set the shlibpath_var
+       rpath=
+       for dir in $temp_rpath; do
+         case $dir in
+         [\\/]* | [A-Za-z]:[\\/]*)
+           # Absolute path.
+           rpath="$rpath$dir:"
+           ;;
+         *)
+           # Relative path: add a thisdir entry.
+           rpath="$rpath\$thisdir/$dir:"
+           ;;
+         esac
+       done
+       temp_rpath="$rpath"
+      fi
+
+      if test -n "$compile_shlibpath$finalize_shlibpath"; then
+       compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command"
+      fi
+      if test -n "$finalize_shlibpath"; then
+       finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command"
+      fi
+
+      compile_var=
+      finalize_var=
+      if test -n "$runpath_var"; then
+       if test -n "$perm_rpath"; then
+         # We should set the runpath_var.
+         rpath=
+         for dir in $perm_rpath; do
+           rpath="$rpath$dir:"
+         done
+         compile_var="$runpath_var=\"$rpath\$$runpath_var\" "
+       fi
+       if test -n "$finalize_perm_rpath"; then
+         # We should set the runpath_var.
+         rpath=
+         for dir in $finalize_perm_rpath; do
+           rpath="$rpath$dir:"
+         done
+         finalize_var="$runpath_var=\"$rpath\$$runpath_var\" "
+       fi
+      fi
+
+      if test "$no_install" = yes; then
+       # We don't need to create a wrapper script.
+       link_command="$compile_var$compile_command$compile_rpath"
+       # Replace the output file specification.
+       link_command=`$echo "X$link_command" | $Xsed -e 's%@OUTPUT@%'"$output"'%g'`
+       # Delete the old output file.
+       $run $rm $output
+       # Link the executable and exit
+       $show "$link_command"
+       $run eval "$link_command" || exit $?
+       exit 0
+      fi
+
+      if test "$hardcode_action" = relink; then
+       # Fast installation is not supported
+       link_command="$compile_var$compile_command$compile_rpath"
+       relink_command="$finalize_var$finalize_command$finalize_rpath"
+
+       $echo "$modename: warning: this platform does not like uninstalled shared libraries" 1>&2
+       $echo "$modename: \`$output' will be relinked during installation" 1>&2
+      else
+       if test "$fast_install" != no; then
+         link_command="$finalize_var$compile_command$finalize_rpath"
+         if test "$fast_install" = yes; then
+           relink_command=`$echo "X$compile_var$compile_command$compile_rpath" | $Xsed -e 's%@OUTPUT@%\$progdir/\$file%g'`
+         else
+           # fast_install is set to needless
+           relink_command=
+         fi
+       else
+         link_command="$compile_var$compile_command$compile_rpath"
+         relink_command="$finalize_var$finalize_command$finalize_rpath"
+       fi
+      fi
+
+      # Replace the output file specification.
+      link_command=`$echo "X$link_command" | $Xsed -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'`
+
+      # Delete the old output files.
+      $run $rm $output $output_objdir/$outputname $output_objdir/lt-$outputname
+
+      $show "$link_command"
+      $run eval "$link_command" || exit $?
+
+      # Now create the wrapper script.
+      $show "creating $output"
+
+      # Quote the relink command for shipping.
+      if test -n "$relink_command"; then
+       # Preserve any variables that may affect compiler behavior
+       for var in $variables_saved_for_relink; do
+         if eval test -z \"\${$var+set}\"; then
+           relink_command="{ test -z \"\${$var+set}\" || unset $var || { $var=; export $var; }; }; $relink_command"
+         elif eval var_value=\$$var; test -z "$var_value"; then
+           relink_command="$var=; export $var; $relink_command"
+         else
+           var_value=`$echo "X$var_value" | $Xsed -e "$sed_quote_subst"`
+           relink_command="$var=\"$var_value\"; export $var; $relink_command"
+         fi
+       done
+       relink_command="(cd `pwd`; $relink_command)"
+       relink_command=`$echo "X$relink_command" | $Xsed -e "$sed_quote_subst"`
+      fi
+
+      # Quote $echo for shipping.
+      if test "X$echo" = "X$SHELL $0 --fallback-echo"; then
+       case $0 in
+       [\\/]* | [A-Za-z]:[\\/]*) qecho="$SHELL $0 --fallback-echo";;
+       *) qecho="$SHELL `pwd`/$0 --fallback-echo";;
+       esac
+       qecho=`$echo "X$qecho" | $Xsed -e "$sed_quote_subst"`
+      else
+       qecho=`$echo "X$echo" | $Xsed -e "$sed_quote_subst"`
+      fi
+
+      # Only actually do things if our run command is non-null.
+      if test -z "$run"; then
+       # win32 will think the script is a binary if it has
+       # a .exe suffix, so we strip it off here.
+       case $output in
+         *.exe) output=`echo $output|sed 's,.exe$,,'` ;;
+       esac
+       # test for cygwin because mv fails w/o .exe extensions
+       case $host in
+         *cygwin*) exeext=.exe ;;
+         *) exeext= ;;
+       esac
+       $rm $output
+       trap "$rm $output; exit 1" 1 2 15
+
+       $echo > $output "\
+#! $SHELL
+
+# $output - temporary wrapper script for $objdir/$outputname
+# Generated by $PROGRAM - GNU $PACKAGE $VERSION$TIMESTAMP
+#
+# The $output program cannot be directly executed until all the libtool
+# libraries that it depends on are installed.
+#
+# This wrapper script should never be moved out of the build directory.
+# If it is, it will not operate correctly.
+
+# Sed substitution that helps us do robust quoting.  It backslashifies
+# metacharacters that are still active within double-quoted strings.
+Xsed='sed -e 1s/^X//'
+sed_quote_subst='$sed_quote_subst'
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+if test \"\${CDPATH+set}\" = set; then CDPATH=:; export CDPATH; fi
+
+relink_command=\"$relink_command\"
+
+# This environment variable determines our operation mode.
+if test \"\$libtool_install_magic\" = \"$magic\"; then
+  # install mode needs the following variable:
+  notinst_deplibs='$notinst_deplibs'
+else
+  # When we are sourced in execute mode, \$file and \$echo are already set.
+  if test \"\$libtool_execute_magic\" != \"$magic\"; then
+    echo=\"$qecho\"
+    file=\"\$0\"
+    # Make sure echo works.
+    if test \"X\$1\" = X--no-reexec; then
+      # Discard the --no-reexec flag, and continue.
+      shift
+    elif test \"X\`(\$echo '\t') 2>/dev/null\`\" = 'X\t'; then
+      # Yippee, \$echo works!
+      :
+    else
+      # Restart under the correct shell, and then maybe \$echo will work.
+      exec $SHELL \"\$0\" --no-reexec \${1+\"\$@\"}
+    fi
+  fi\
+"
+       $echo >> $output "\
+
+  # Find the directory that this script lives in.
+  thisdir=\`\$echo \"X\$file\" | \$Xsed -e 's%/[^/]*$%%'\`
+  test \"x\$thisdir\" = \"x\$file\" && thisdir=.
+
+  # Follow symbolic links until we get to the real thisdir.
+  file=\`ls -ld \"\$file\" | sed -n 's/.*-> //p'\`
+  while test -n \"\$file\"; do
+    destdir=\`\$echo \"X\$file\" | \$Xsed -e 's%/[^/]*\$%%'\`
+
+    # If there was a directory component, then change thisdir.
+    if test \"x\$destdir\" != \"x\$file\"; then
+      case \"\$destdir\" in
+      [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;;
+      *) thisdir=\"\$thisdir/\$destdir\" ;;
+      esac
+    fi
+
+    file=\`\$echo \"X\$file\" | \$Xsed -e 's%^.*/%%'\`
+    file=\`ls -ld \"\$thisdir/\$file\" | sed -n 's/.*-> //p'\`
+  done
+
+  # Try to get the absolute directory name.
+  absdir=\`cd \"\$thisdir\" && pwd\`
+  test -n \"\$absdir\" && thisdir=\"\$absdir\"
+"
+
+       if test "$fast_install" = yes; then
+         echo >> $output "\
+  program=lt-'$outputname'$exeext
+  progdir=\"\$thisdir/$objdir\"
+
+  if test ! -f \"\$progdir/\$program\" || \\
+     { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | sed 1q\`; \\
+       test \"X\$file\" != \"X\$progdir/\$program\"; }; then
+
+    file=\"\$\$-\$program\"
+
+    if test ! -d \"\$progdir\"; then
+      $mkdir \"\$progdir\"
+    else
+      $rm \"\$progdir/\$file\"
+    fi"
+
+         echo >> $output "\
+
+    # relink executable if necessary
+    if test -n \"\$relink_command\"; then
+      if relink_command_output=\`eval \$relink_command 2>&1\`; then :
+      else
+       $echo \"\$relink_command_output\" >&2
+       $rm \"\$progdir/\$file\"
+       exit 1
+      fi
+    fi
+
+    $mv \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null ||
+    { $rm \"\$progdir/\$program\";
+      $mv \"\$progdir/\$file\" \"\$progdir/\$program\"; }
+    $rm \"\$progdir/\$file\"
+  fi"
+       else
+         echo >> $output "\
+  program='$outputname'
+  progdir=\"\$thisdir/$objdir\"
+"
+       fi
+
+       echo >> $output "\
+
+  if test -f \"\$progdir/\$program\"; then"
+
+       # Export our shlibpath_var if we have one.
+       if test "$shlibpath_overrides_runpath" = yes && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
+         $echo >> $output "\
+    # Add our own library path to $shlibpath_var
+    $shlibpath_var=\"$temp_rpath\$$shlibpath_var\"
+
+    # Some systems cannot cope with colon-terminated $shlibpath_var
+    # The second colon is a workaround for a bug in BeOS R4 sed
+    $shlibpath_var=\`\$echo \"X\$$shlibpath_var\" | \$Xsed -e 's/::*\$//'\`
+
+    export $shlibpath_var
+"
+       fi
+
+       # fixup the dll searchpath if we need to.
+       if test -n "$dllsearchpath"; then
+         $echo >> $output "\
+    # Add the dll search path components to the executable PATH
+    PATH=$dllsearchpath:\$PATH
+"
+       fi
+
+       $echo >> $output "\
+    if test \"\$libtool_execute_magic\" != \"$magic\"; then
+      # Run the actual program with our arguments.
+"
+       case $host in
+       # win32 systems need to use the prog path for dll
+       # lookup to work
+       *-*-cygwin* | *-*-pw32*)
+         $echo >> $output "\
+      exec \$progdir/\$program \${1+\"\$@\"}
+"
+         ;;
+
+       # Backslashes separate directories on plain windows
+       *-*-mingw | *-*-os2*)
+         $echo >> $output "\
+      exec \$progdir\\\\\$program \${1+\"\$@\"}
+"
+         ;;
+
+       *)
+         $echo >> $output "\
+      # Export the path to the program.
+      PATH=\"\$progdir:\$PATH\"
+      export PATH
+
+      exec \$program \${1+\"\$@\"}
+"
+         ;;
+       esac
+       $echo >> $output "\
+      \$echo \"\$0: cannot exec \$program \${1+\"\$@\"}\"
+      exit 1
+    fi
+  else
+    # The program doesn't exist.
+    \$echo \"\$0: error: \$progdir/\$program does not exist\" 1>&2
+    \$echo \"This script is just a wrapper for \$program.\" 1>&2
+    echo \"See the $PACKAGE documentation for more information.\" 1>&2
+    exit 1
+  fi
+fi\
+"
+       chmod +x $output
+      fi
+      exit 0
+      ;;
+    esac
+
+    # See if we need to build an old-fashioned archive.
+    for oldlib in $oldlibs; do
+
+      if test "$build_libtool_libs" = convenience; then
+       oldobjs="$libobjs_save"
+       addlibs="$convenience"
+       build_libtool_libs=no
+      else
+       if test "$build_libtool_libs" = module; then
+         oldobjs="$libobjs_save"
+         build_libtool_libs=no
+       else
+         oldobjs="$objs$old_deplibs "`$echo "X$libobjs_save" | $SP2NL | $Xsed -e '/\.'${libext}'$/d' -e '/\.lib$/d' -e "$lo2o" | $NL2SP`
+       fi
+       addlibs="$old_convenience"
+      fi
+
+      if test -n "$addlibs"; then
+       gentop="$output_objdir/${outputname}x"
+       $show "${rm}r $gentop"
+       $run ${rm}r "$gentop"
+       $show "mkdir $gentop"
+       $run mkdir "$gentop"
+       status=$?
+       if test "$status" -ne 0 && test ! -d "$gentop"; then
+         exit $status
+       fi
+       generated="$generated $gentop"
+
+       # Add in members from convenience archives.
+       for xlib in $addlibs; do
+         # Extract the objects.
+         case $xlib in
+         [\\/]* | [A-Za-z]:[\\/]*) xabs="$xlib" ;;
+         *) xabs=`pwd`"/$xlib" ;;
+         esac
+         xlib=`$echo "X$xlib" | $Xsed -e 's%^.*/%%'`
+         xdir="$gentop/$xlib"
+
+         $show "${rm}r $xdir"
+         $run ${rm}r "$xdir"
+         $show "mkdir $xdir"
+         $run mkdir "$xdir"
+         status=$?
+         if test "$status" -ne 0 && test ! -d "$xdir"; then
+           exit $status
+         fi
+         $show "(cd $xdir && $AR x $xabs)"
+         $run eval "(cd \$xdir && $AR x \$xabs)" || exit $?
+
+         oldobjs="$oldobjs "`find $xdir -name \*.${objext} -print -o -name \*.lo -print | $NL2SP`
+       done
+      fi
+
+      # Do each command in the archive commands.
+      if test -n "$old_archive_from_new_cmds" && test "$build_libtool_libs" = yes; then
+       eval cmds=\"$old_archive_from_new_cmds\"
+      else
+       # Ensure that we have .o objects in place in case we decided
+       # not to build a shared library, and have fallen back to building
+       # static libs even though --disable-static was passed!
+       for oldobj in $oldobjs; do
+         if test ! -f $oldobj; then
+           xdir=`$echo "X$oldobj" | $Xsed -e 's%/[^/]*$%%'`
+           if test "X$xdir" = "X$oldobj"; then
+             xdir="."
+           else
+             xdir="$xdir"
+           fi
+           baseobj=`$echo "X$oldobj" | $Xsed -e 's%^.*/%%'`
+           obj=`$echo "X$baseobj" | $Xsed -e "$o2lo"`
+           $show "(cd $xdir && ${LN_S} $obj $baseobj)"
+           $run eval '(cd $xdir && ${LN_S} $obj $baseobj)' || exit $?
+         fi
+       done
+
+       eval cmds=\"$old_archive_cmds\"
+      fi
+      save_ifs="$IFS"; IFS='~'
+      for cmd in $cmds; do
+       IFS="$save_ifs"
+       $show "$cmd"
+       $run eval "$cmd" || exit $?
+      done
+      IFS="$save_ifs"
+    done
+
+    if test -n "$generated"; then
+      $show "${rm}r$generated"
+      $run ${rm}r$generated
+    fi
+
+    # Now create the libtool archive.
+    case $output in
+    *.la)
+      old_library=
+      test "$build_old_libs" = yes && old_library="$libname.$libext"
+      $show "creating $output"
+
+      # Preserve any variables that may affect compiler behavior
+      for var in $variables_saved_for_relink; do
+       if eval test -z \"\${$var+set}\"; then
+         relink_command="{ test -z \"\${$var+set}\" || unset $var || { $var=; export $var; }; }; $relink_command"
+       elif eval var_value=\$$var; test -z "$var_value"; then
+         relink_command="$var=; export $var; $relink_command"
+       else
+         var_value=`$echo "X$var_value" | $Xsed -e "$sed_quote_subst"`
+         relink_command="$var=\"$var_value\"; export $var; $relink_command"
+       fi
+      done
+      # Quote the link command for shipping.
+      relink_command="(cd `pwd`; $SHELL $0 --mode=relink $libtool_args @inst_prefix_dir@)"
+      relink_command=`$echo "X$relink_command" | $Xsed -e "$sed_quote_subst"`
+
+      # Only create the output if not a dry run.
+      if test -z "$run"; then
+       for installed in no yes; do
+         if test "$installed" = yes; then
+           if test -z "$install_libdir"; then
+             break
+           fi
+           output="$output_objdir/$outputname"i
+           # Replace all uninstalled libtool libraries with the installed ones
+           newdependency_libs=
+           for deplib in $dependency_libs; do
+             case $deplib in
+             *.la)
+               name=`$echo "X$deplib" | $Xsed -e 's%^.*/%%'`
+               eval libdir=`sed -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
+               if test -z "$libdir"; then
+                 $echo "$modename: \`$deplib' is not a valid libtool archive" 1>&2
+                 exit 1
+               fi
+               newdependency_libs="$newdependency_libs $libdir/$name"
+               ;;
+             *) newdependency_libs="$newdependency_libs $deplib" ;;
+             esac
+           done
+           dependency_libs="$newdependency_libs"
+           newdlfiles=
+           for lib in $dlfiles; do
+             name=`$echo "X$lib" | $Xsed -e 's%^.*/%%'`
+             eval libdir=`sed -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
+             if test -z "$libdir"; then
+               $echo "$modename: \`$lib' is not a valid libtool archive" 1>&2
+               exit 1
+             fi
+             newdlfiles="$newdlfiles $libdir/$name"
+           done
+           dlfiles="$newdlfiles"
+           newdlprefiles=
+           for lib in $dlprefiles; do
+             name=`$echo "X$lib" | $Xsed -e 's%^.*/%%'`
+             eval libdir=`sed -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
+             if test -z "$libdir"; then
+               $echo "$modename: \`$lib' is not a valid libtool archive" 1>&2
+               exit 1
+             fi
+             newdlprefiles="$newdlprefiles $libdir/$name"
+           done
+           dlprefiles="$newdlprefiles"
+         fi
+         $rm $output
+         # place dlname in correct position for cygwin
+         tdlname=$dlname
+         case $host,$output,$installed,$module,$dlname in
+           *cygwin*,*lai,yes,no,*.dll) tdlname=../bin/$dlname ;;
+         esac
+         $echo > $output "\
+# $outputname - a libtool library file
+# Generated by $PROGRAM - GNU $PACKAGE $VERSION$TIMESTAMP
+#
+# Please DO NOT delete this file!
+# It is necessary for linking the library.
+
+# The name that we can dlopen(3).
+dlname='$tdlname'
+
+# Names of this library.
+library_names='$library_names'
+
+# The name of the static archive.
+old_library='$old_library'
+
+# Libraries that this one depends upon.
+dependency_libs='$dependency_libs'
+
+# Version information for $libname.
+current=$current
+age=$age
+revision=$revision
+
+# Is this an already installed library?
+installed=$installed
+
+# Files to dlopen/dlpreopen
+dlopen='$dlfiles'
+dlpreopen='$dlprefiles'
+
+# Directory that this library needs to be installed in:
+libdir='$install_libdir'"
+         if test "$installed" = no && test "$need_relink" = yes; then
+           $echo >> $output "\
+relink_command=\"$relink_command\""
+         fi
+       done
+      fi
+
+      # Do a symbolic link so that the libtool archive can be found in
+      # LD_LIBRARY_PATH before the program is installed.
+      $show "(cd $output_objdir && $rm $outputname && $LN_S ../$outputname $outputname)"
+      $run eval '(cd $output_objdir && $rm $outputname && $LN_S ../$outputname $outputname)' || exit $?
+      ;;
+    esac
+    exit 0
+    ;;
+
+  # libtool install mode
+  install)
+    modename="$modename: install"
+
+    # There may be an optional sh(1) argument at the beginning of
+    # install_prog (especially on Windows NT).
+    if test "$nonopt" = "$SHELL" || test "$nonopt" = /bin/sh ||
+       # Allow the use of GNU shtool's install command.
+       $echo "X$nonopt" | $Xsed | grep shtool > /dev/null; then
+      # Aesthetically quote it.
+      arg=`$echo "X$nonopt" | $Xsed -e "$sed_quote_subst"`
+      case $arg in
+      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \    ]*|*]*)
+       arg="\"$arg\""
+       ;;
+      esac
+      install_prog="$arg "
+      arg="$1"
+      shift
+    else
+      install_prog=
+      arg="$nonopt"
+    fi
+
+    # The real first argument should be the name of the installation program.
+    # Aesthetically quote it.
+    arg=`$echo "X$arg" | $Xsed -e "$sed_quote_subst"`
+    case $arg in
+    *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \      ]*|*]*)
+      arg="\"$arg\""
+      ;;
+    esac
+    install_prog="$install_prog$arg"
+
+    # We need to accept at least all the BSD install flags.
+    dest=
+    files=
+    opts=
+    prev=
+    install_type=
+    isdir=no
+    stripme=
+    for arg
+    do
+      if test -n "$dest"; then
+       files="$files $dest"
+       dest="$arg"
+       continue
+      fi
+
+      case $arg in
+      -d) isdir=yes ;;
+      -f) prev="-f" ;;
+      -g) prev="-g" ;;
+      -m) prev="-m" ;;
+      -o) prev="-o" ;;
+      -s)
+       stripme=" -s"
+       continue
+       ;;
+      -*) ;;
+
+      *)
+       # If the previous option needed an argument, then skip it.
+       if test -n "$prev"; then
+         prev=
+       else
+         dest="$arg"
+         continue
+       fi
+       ;;
+      esac
+
+      # Aesthetically quote the argument.
+      arg=`$echo "X$arg" | $Xsed -e "$sed_quote_subst"`
+      case $arg in
+      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \    ]*|*]*)
+       arg="\"$arg\""
+       ;;
+      esac
+      install_prog="$install_prog $arg"
+    done
+
+    if test -z "$install_prog"; then
+      $echo "$modename: you must specify an install program" 1>&2
+      $echo "$help" 1>&2
+      exit 1
+    fi
+
+    if test -n "$prev"; then
+      $echo "$modename: the \`$prev' option requires an argument" 1>&2
+      $echo "$help" 1>&2
+      exit 1
+    fi
+
+    if test -z "$files"; then
+      if test -z "$dest"; then
+       $echo "$modename: no file or destination specified" 1>&2
+      else
+       $echo "$modename: you must specify a destination" 1>&2
+      fi
+      $echo "$help" 1>&2
+      exit 1
+    fi
+
+    # Strip any trailing slash from the destination.
+    dest=`$echo "X$dest" | $Xsed -e 's%/$%%'`
+
+    # Check to see that the destination is a directory.
+    test -d "$dest" && isdir=yes
+    if test "$isdir" = yes; then
+      destdir="$dest"
+      destname=
+    else
+      destdir=`$echo "X$dest" | $Xsed -e 's%/[^/]*$%%'`
+      test "X$destdir" = "X$dest" && destdir=.
+      destname=`$echo "X$dest" | $Xsed -e 's%^.*/%%'`
+
+      # Not a directory, so check to see that there is only one file specified.
+      set dummy $files
+      if test "$#" -gt 2; then
+       $echo "$modename: \`$dest' is not a directory" 1>&2
+       $echo "$help" 1>&2
+       exit 1
+      fi
+    fi
+    case $destdir in
+    [\\/]* | [A-Za-z]:[\\/]*) ;;
+    *)
+      for file in $files; do
+       case $file in
+       *.lo) ;;
+       *)
+         $echo "$modename: \`$destdir' must be an absolute directory name" 1>&2
+         $echo "$help" 1>&2
+         exit 1
+         ;;
+       esac
+      done
+      ;;
+    esac
+
+    # This variable tells wrapper scripts just to set variables rather
+    # than running their programs.
+    libtool_install_magic="$magic"
+
+    staticlibs=
+    future_libdirs=
+    current_libdirs=
+    for file in $files; do
+
+      # Do each installation.
+      case $file in
+      *.$libext)
+       # Do the static libraries later.
+       staticlibs="$staticlibs $file"
+       ;;
+
+      *.la)
+       # Check to see that this really is a libtool archive.
+       if (sed -e '2q' $file | egrep "^# Generated by .*$PACKAGE") >/dev/null 2>&1; then :
+       else
+         $echo "$modename: \`$file' is not a valid libtool archive" 1>&2
+         $echo "$help" 1>&2
+         exit 1
+       fi
+
+       library_names=
+       old_library=
+       relink_command=
+       # If there is no directory component, then add one.
+       case $file in
+       */* | *\\*) . $file ;;
+       *) . ./$file ;;
+       esac
+
+       # Add the libdir to current_libdirs if it is the destination.
+       if test "X$destdir" = "X$libdir"; then
+         case "$current_libdirs " in
+         *" $libdir "*) ;;
+         *) current_libdirs="$current_libdirs $libdir" ;;
+         esac
+       else
+         # Note the libdir as a future libdir.
+         case "$future_libdirs " in
+         *" $libdir "*) ;;
+         *) future_libdirs="$future_libdirs $libdir" ;;
+         esac
+       fi
+
+       dir=`$echo "X$file" | $Xsed -e 's%/[^/]*$%%'`/
+       test "X$dir" = "X$file/" && dir=
+       dir="$dir$objdir"
+
+       if test -n "$relink_command"; then
+         # Determine the prefix the user has applied to our future dir.
+         inst_prefix_dir=`$echo "$destdir" | sed "s%$libdir\$%%"`
+
+         # Don't allow the user to place us outside of our expected
+         # location b/c this prevents finding dependent libraries that
+         # are installed to the same prefix.
+         if test "$inst_prefix_dir" = "$destdir"; then
+           $echo "$modename: error: cannot install \`$file' to a directory not ending in $libdir" 1>&2
+           exit 1
+         fi
+
+         if test -n "$inst_prefix_dir"; then
+           # Stick the inst_prefix_dir data into the link command.
+           relink_command=`$echo "$relink_command" | sed "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"`
+         else
+           relink_command=`$echo "$relink_command" | sed "s%@inst_prefix_dir@%%"`
+         fi
+
+         $echo "$modename: warning: relinking \`$file'" 1>&2
+         $show "$relink_command"
+         if $run eval "$relink_command"; then :
+         else
+           $echo "$modename: error: relink \`$file' with the above command before installing it" 1>&2
+           exit 1
+         fi
+       fi
+
+       # See the names of the shared library.
+       set dummy $library_names
+       if test -n "$2"; then
+         realname="$2"
+         shift
+         shift
+
+         srcname="$realname"
+         test -n "$relink_command" && srcname="$realname"T
+
+         # Install the shared library and build the symlinks.
+         $show "$install_prog $dir/$srcname $destdir/$realname"
+         $run eval "$install_prog $dir/$srcname $destdir/$realname" || exit $?
+         if test -n "$stripme" && test -n "$striplib"; then
+           $show "$striplib $destdir/$realname"
+           $run eval "$striplib $destdir/$realname" || exit $?
+         fi
+
+         if test "$#" -gt 0; then
+           # Delete the old symlinks, and create new ones.
+           for linkname
+           do
+             if test "$linkname" != "$realname"; then
+               $show "(cd $destdir && $rm $linkname && $LN_S $realname $linkname)"
+               $run eval "(cd $destdir && $rm $linkname && $LN_S $realname $linkname)"
+             fi
+           done
+         fi
+
+         # Do each command in the postinstall commands.
+         lib="$destdir/$realname"
+         eval cmds=\"$postinstall_cmds\"
+         save_ifs="$IFS"; IFS='~'
+         for cmd in $cmds; do
+           IFS="$save_ifs"
+           $show "$cmd"
+           $run eval "$cmd" || exit $?
+         done
+         IFS="$save_ifs"
+       fi
+
+       # Install the pseudo-library for information purposes.
+       name=`$echo "X$file" | $Xsed -e 's%^.*/%%'`
+       instname="$dir/$name"i
+       $show "$install_prog $instname $destdir/$name"
+       $run eval "$install_prog $instname $destdir/$name" || exit $?
+
+       # Maybe install the static library, too.
+       test -n "$old_library" && staticlibs="$staticlibs $dir/$old_library"
+       ;;
+
+      *.lo)
+       # Install (i.e. copy) a libtool object.
+
+       # Figure out destination file name, if it wasn't already specified.
+       if test -n "$destname"; then
+         destfile="$destdir/$destname"
+       else
+         destfile=`$echo "X$file" | $Xsed -e 's%^.*/%%'`
+         destfile="$destdir/$destfile"
+       fi
+
+       # Deduce the name of the destination old-style object file.
+       case $destfile in
+       *.lo)
+         staticdest=`$echo "X$destfile" | $Xsed -e "$lo2o"`
+         ;;
+       *.$objext)
+         staticdest="$destfile"
+         destfile=
+         ;;
+       *)
+         $echo "$modename: cannot copy a libtool object to \`$destfile'" 1>&2
+         $echo "$help" 1>&2
+         exit 1
+         ;;
+       esac
+
+       # Install the libtool object if requested.
+       if test -n "$destfile"; then
+         $show "$install_prog $file $destfile"
+         $run eval "$install_prog $file $destfile" || exit $?
+       fi
+
+       # Install the old object if enabled.
+       if test "$build_old_libs" = yes; then
+         # Deduce the name of the old-style object file.
+         staticobj=`$echo "X$file" | $Xsed -e "$lo2o"`
+
+         $show "$install_prog $staticobj $staticdest"
+         $run eval "$install_prog \$staticobj \$staticdest" || exit $?
+       fi
+       exit 0
+       ;;
+
+      *)
+       # Figure out destination file name, if it wasn't already specified.
+       if test -n "$destname"; then
+         destfile="$destdir/$destname"
+       else
+         destfile=`$echo "X$file" | $Xsed -e 's%^.*/%%'`
+         destfile="$destdir/$destfile"
+       fi
+
+       # Do a test to see if this is really a libtool program.
+       if (sed -e '4q' $file | egrep "^# Generated by .*$PACKAGE") >/dev/null 2>&1; then
+         notinst_deplibs=
+         relink_command=
+
+         # If there is no directory component, then add one.
+         case $file in
+         */* | *\\*) . $file ;;
+         *) . ./$file ;;
+         esac
+
+         # Check the variables that should have been set.
+         if test -z "$notinst_deplibs"; then
+           $echo "$modename: invalid libtool wrapper script \`$file'" 1>&2
+           exit 1
+         fi
+
+         finalize=yes
+         for lib in $notinst_deplibs; do
+           # Check to see that each library is installed.
+           libdir=
+           if test -f "$lib"; then
+             # If there is no directory component, then add one.
+             case $lib in
+             */* | *\\*) . $lib ;;
+             *) . ./$lib ;;
+             esac
+           fi
+           libfile="$libdir/"`$echo "X$lib" | $Xsed -e 's%^.*/%%g'` ### testsuite: skip nested quoting test
+           if test -n "$libdir" && test ! -f "$libfile"; then
+             $echo "$modename: warning: \`$lib' has not been installed in \`$libdir'" 1>&2
+             finalize=no
+           fi
+         done
+
+         relink_command=
+         # If there is no directory component, then add one.
+         case $file in
+         */* | *\\*) . $file ;;
+         *) . ./$file ;;
+         esac
+
+         outputname=
+         if test "$fast_install" = no && test -n "$relink_command"; then
+           if test "$finalize" = yes && test -z "$run"; then
+             tmpdir="/tmp"
+             test -n "$TMPDIR" && tmpdir="$TMPDIR"
+              tmpdir=`mktemp -d $tmpdir/libtool-XXXXXX 2> /dev/null`
+              if test $? = 0 ; then :
+              else
+                tmpdir="$tmpdir/libtool-$$"
+              fi
+             if $mkdir -p "$tmpdir" && chmod 700 "$tmpdir"; then :
+             else
+               $echo "$modename: error: cannot create temporary directory \`$tmpdir'" 1>&2
+               continue
+             fi
+             file=`$echo "X$file" | $Xsed -e 's%^.*/%%'`
+             outputname="$tmpdir/$file"
+             # Replace the output file specification.
+             relink_command=`$echo "X$relink_command" | $Xsed -e 's%@OUTPUT@%'"$outputname"'%g'`
+
+             $show "$relink_command"
+             if $run eval "$relink_command"; then :
+             else
+               $echo "$modename: error: relink \`$file' with the above command before installing it" 1>&2
+               ${rm}r "$tmpdir"
+               continue
+             fi
+             file="$outputname"
+           else
+             $echo "$modename: warning: cannot relink \`$file'" 1>&2
+           fi
+         else
+           # Install the binary that we compiled earlier.
+           file=`$echo "X$file" | $Xsed -e "s%\([^/]*\)$%$objdir/\1%"`
+         fi
+       fi
+
+       # remove .exe since cygwin /usr/bin/install will append another
+       # one anyways
+       case $install_prog,$host in
+       /usr/bin/install*,*cygwin*)
+         case $file:$destfile in
+         *.exe:*.exe)
+           # this is ok
+           ;;
+         *.exe:*)
+           destfile=$destfile.exe
+           ;;
+         *:*.exe)
+           destfile=`echo $destfile | sed -e 's,.exe$,,'`
+           ;;
+         esac
+         ;;
+       esac
+       $show "$install_prog$stripme $file $destfile"
+       $run eval "$install_prog\$stripme \$file \$destfile" || exit $?
+       test -n "$outputname" && ${rm}r "$tmpdir"
+       ;;
+      esac
+    done
+
+    for file in $staticlibs; do
+      name=`$echo "X$file" | $Xsed -e 's%^.*/%%'`
+
+      # Set up the ranlib parameters.
+      oldlib="$destdir/$name"
+
+      $show "$install_prog $file $oldlib"
+      $run eval "$install_prog \$file \$oldlib" || exit $?
+
+      if test -n "$stripme" && test -n "$striplib"; then
+       $show "$old_striplib $oldlib"
+       $run eval "$old_striplib $oldlib" || exit $?
+      fi
+
+      # Do each command in the postinstall commands.
+      eval cmds=\"$old_postinstall_cmds\"
+      save_ifs="$IFS"; IFS='~'
+      for cmd in $cmds; do
+       IFS="$save_ifs"
+       $show "$cmd"
+       $run eval "$cmd" || exit $?
+      done
+      IFS="$save_ifs"
+    done
+
+    if test -n "$future_libdirs"; then
+      $echo "$modename: warning: remember to run \`$progname --finish$future_libdirs'" 1>&2
+    fi
+
+    if test -n "$current_libdirs"; then
+      # Maybe just do a dry run.
+      test -n "$run" && current_libdirs=" -n$current_libdirs"
+      exec_cmd='$SHELL $0 --finish$current_libdirs'
+    else
+      exit 0
+    fi
+    ;;
+
+  # libtool finish mode
+  finish)
+    modename="$modename: finish"
+    libdirs="$nonopt"
+    admincmds=
+
+    if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
+      for dir
+      do
+       libdirs="$libdirs $dir"
+      done
+
+      for libdir in $libdirs; do
+       if test -n "$finish_cmds"; then
+         # Do each command in the finish commands.
+         eval cmds=\"$finish_cmds\"
+         save_ifs="$IFS"; IFS='~'
+         for cmd in $cmds; do
+           IFS="$save_ifs"
+           $show "$cmd"
+           $run eval "$cmd" || admincmds="$admincmds
+       $cmd"
+         done
+         IFS="$save_ifs"
+       fi
+       if test -n "$finish_eval"; then
+         # Do the single finish_eval.
+         eval cmds=\"$finish_eval\"
+         $run eval "$cmds" || admincmds="$admincmds
+       $cmds"
+       fi
+      done
+    fi
+
+    # Exit here if they wanted silent mode.
+    test "$show" = : && exit 0
+
+    echo "----------------------------------------------------------------------"
+    echo "Libraries have been installed in:"
+    for libdir in $libdirs; do
+      echo "   $libdir"
+    done
+    echo
+    echo "If you ever happen to want to link against installed libraries"
+    echo "in a given directory, LIBDIR, you must either use libtool, and"
+    echo "specify the full pathname of the library, or use the \`-LLIBDIR'"
+    echo "flag during linking and do at least one of the following:"
+    if test -n "$shlibpath_var"; then
+      echo "   - add LIBDIR to the \`$shlibpath_var' environment variable"
+      echo "     during execution"
+    fi
+    if test -n "$runpath_var"; then
+      echo "   - add LIBDIR to the \`$runpath_var' environment variable"
+      echo "     during linking"
+    fi
+    if test -n "$hardcode_libdir_flag_spec"; then
+      libdir=LIBDIR
+      eval flag=\"$hardcode_libdir_flag_spec\"
+
+      echo "   - use the \`$flag' linker flag"
+    fi
+    if test -n "$admincmds"; then
+      echo "   - have your system administrator run these commands:$admincmds"
+    fi
+    if test -f /etc/ld.so.conf; then
+      echo "   - have your system administrator add LIBDIR to \`/etc/ld.so.conf'"
+    fi
+    echo
+    echo "See any operating system documentation about shared libraries for"
+    echo "more information, such as the ld(1) and ld.so(8) manual pages."
+    echo "----------------------------------------------------------------------"
+    exit 0
+    ;;
+
+  # libtool execute mode
+  execute)
+    modename="$modename: execute"
+
+    # The first argument is the command name.
+    cmd="$nonopt"
+    if test -z "$cmd"; then
+      $echo "$modename: you must specify a COMMAND" 1>&2
+      $echo "$help"
+      exit 1
+    fi
+
+    # Handle -dlopen flags immediately.
+    for file in $execute_dlfiles; do
+      if test ! -f "$file"; then
+       $echo "$modename: \`$file' is not a file" 1>&2
+       $echo "$help" 1>&2
+       exit 1
+      fi
+
+      dir=
+      case $file in
+      *.la)
+       # Check to see that this really is a libtool archive.
+       if (sed -e '2q' $file | egrep "^# Generated by .*$PACKAGE") >/dev/null 2>&1; then :
+       else
+         $echo "$modename: \`$lib' is not a valid libtool archive" 1>&2
+         $echo "$help" 1>&2
+         exit 1
+       fi
+
+       # Read the libtool library.
+       dlname=
+       library_names=
+
+       # If there is no directory component, then add one.
+       case $file in
+       */* | *\\*) . $file ;;
+       *) . ./$file ;;
+       esac
+
+       # Skip this library if it cannot be dlopened.
+       if test -z "$dlname"; then
+         # Warn if it was a shared library.
+         test -n "$library_names" && $echo "$modename: warning: \`$file' was not linked with \`-export-dynamic'"
+         continue
+       fi
+
+       dir=`$echo "X$file" | $Xsed -e 's%/[^/]*$%%'`
+       test "X$dir" = "X$file" && dir=.
+
+       if test -f "$dir/$objdir/$dlname"; then
+         dir="$dir/$objdir"
+       else
+         $echo "$modename: cannot find \`$dlname' in \`$dir' or \`$dir/$objdir'" 1>&2
+         exit 1
+       fi
+       ;;
+
+      *.lo)
+       # Just add the directory containing the .lo file.
+       dir=`$echo "X$file" | $Xsed -e 's%/[^/]*$%%'`
+       test "X$dir" = "X$file" && dir=.
+       ;;
+
+      *)
+       $echo "$modename: warning \`-dlopen' is ignored for non-libtool libraries and objects" 1>&2
+       continue
+       ;;
+      esac
+
+      # Get the absolute pathname.
+      absdir=`cd "$dir" && pwd`
+      test -n "$absdir" && dir="$absdir"
+
+      # Now add the directory to shlibpath_var.
+      if eval "test -z \"\$$shlibpath_var\""; then
+       eval "$shlibpath_var=\"\$dir\""
+      else
+       eval "$shlibpath_var=\"\$dir:\$$shlibpath_var\""
+      fi
+    done
+
+    # This variable tells wrapper scripts just to set shlibpath_var
+    # rather than running their programs.
+    libtool_execute_magic="$magic"
+
+    # Check if any of the arguments is a wrapper script.
+    args=
+    for file
+    do
+      case $file in
+      -*) ;;
+      *)
+       # Do a test to see if this is really a libtool program.
+       if (sed -e '4q' $file | egrep "^# Generated by .*$PACKAGE") >/dev/null 2>&1; then
+         # If there is no directory component, then add one.
+         case $file in
+         */* | *\\*) . $file ;;
+         *) . ./$file ;;
+         esac
+
+         # Transform arg to wrapped name.
+         file="$progdir/$program"
+       fi
+       ;;
+      esac
+      # Quote arguments (to preserve shell metacharacters).
+      file=`$echo "X$file" | $Xsed -e "$sed_quote_subst"`
+      args="$args \"$file\""
+    done
+
+    if test -z "$run"; then
+      if test -n "$shlibpath_var"; then
+       # Export the shlibpath_var.
+       eval "export $shlibpath_var"
+      fi
+
+      # Restore saved enviroment variables
+      if test "${save_LC_ALL+set}" = set; then
+       LC_ALL="$save_LC_ALL"; export LC_ALL
+      fi
+      if test "${save_LANG+set}" = set; then
+       LANG="$save_LANG"; export LANG
+      fi
+
+      # Now prepare to actually exec the command.
+      exec_cmd="\$cmd$args"
+    else
+      # Display what would be done.
+      if test -n "$shlibpath_var"; then
+       eval "\$echo \"\$shlibpath_var=\$$shlibpath_var\""
+       $echo "export $shlibpath_var"
+      fi
+      $echo "$cmd$args"
+      exit 0
+    fi
+    ;;
+
+  # libtool clean and uninstall mode
+  clean | uninstall)
+    modename="$modename: $mode"
+    rm="$nonopt"
+    files=
+    rmforce=
+    exit_status=0
+
+    # This variable tells wrapper scripts just to set variables rather
+    # than running their programs.
+    libtool_install_magic="$magic"
+
+    for arg
+    do
+      case $arg in
+      -f) rm="$rm $arg"; rmforce=yes ;;
+      -*) rm="$rm $arg" ;;
+      *) files="$files $arg" ;;
+      esac
+    done
+
+    if test -z "$rm"; then
+      $echo "$modename: you must specify an RM program" 1>&2
+      $echo "$help" 1>&2
+      exit 1
+    fi
+
+    rmdirs=
+
+    for file in $files; do
+      dir=`$echo "X$file" | $Xsed -e 's%/[^/]*$%%'`
+      if test "X$dir" = "X$file"; then
+       dir=.
+       objdir="$objdir"
+      else
+       objdir="$dir/$objdir"
+      fi
+      name=`$echo "X$file" | $Xsed -e 's%^.*/%%'`
+      test "$mode" = uninstall && objdir="$dir"
+
+      # Remember objdir for removal later, being careful to avoid duplicates
+      if test "$mode" = clean; then
+       case " $rmdirs " in
+         *" $objdir "*) ;;
+         *) rmdirs="$rmdirs $objdir" ;;
+       esac
+      fi
+
+      # Don't error if the file doesn't exist and rm -f was used.
+      if (test -L "$file") >/dev/null 2>&1 \
+       || (test -h "$file") >/dev/null 2>&1 \
+       || test -f "$file"; then
+       :
+      elif test -d "$file"; then
+       exit_status=1
+       continue
+      elif test "$rmforce" = yes; then
+       continue
+      fi
+
+      rmfiles="$file"
+
+      case $name in
+      *.la)
+       # Possibly a libtool archive, so verify it.
+       if (sed -e '2q' $file | egrep "^# Generated by .*$PACKAGE") >/dev/null 2>&1; then
+         . $dir/$name
+
+         # Delete the libtool libraries and symlinks.
+         for n in $library_names; do
+           rmfiles="$rmfiles $objdir/$n"
+         done
+         test -n "$old_library" && rmfiles="$rmfiles $objdir/$old_library"
+         test "$mode" = clean && rmfiles="$rmfiles $objdir/$name $objdir/${name}i"
+
+         if test "$mode" = uninstall; then
+           if test -n "$library_names"; then
+             # Do each command in the postuninstall commands.
+             eval cmds=\"$postuninstall_cmds\"
+             save_ifs="$IFS"; IFS='~'
+             for cmd in $cmds; do
+               IFS="$save_ifs"
+               $show "$cmd"
+               $run eval "$cmd"
+               if test "$?" -ne 0 && test "$rmforce" != yes; then
+                 exit_status=1
+               fi
+             done
+             IFS="$save_ifs"
+           fi
+
+           if test -n "$old_library"; then
+             # Do each command in the old_postuninstall commands.
+             eval cmds=\"$old_postuninstall_cmds\"
+             save_ifs="$IFS"; IFS='~'
+             for cmd in $cmds; do
+               IFS="$save_ifs"
+               $show "$cmd"
+               $run eval "$cmd"
+               if test "$?" -ne 0 && test "$rmforce" != yes; then
+                 exit_status=1
+               fi
+             done
+             IFS="$save_ifs"
+           fi
+           # FIXME: should reinstall the best remaining shared library.
+         fi
+       fi
+       ;;
+
+      *.lo)
+       if test "$build_old_libs" = yes; then
+         oldobj=`$echo "X$name" | $Xsed -e "$lo2o"`
+         rmfiles="$rmfiles $dir/$oldobj"
+       fi
+       ;;
+
+      *)
+       # Do a test to see if this is a libtool program.
+       if test "$mode" = clean &&
+          (sed -e '4q' $file | egrep "^# Generated by .*$PACKAGE") >/dev/null 2>&1; then
+         relink_command=
+         . $dir/$file
+
+         rmfiles="$rmfiles $objdir/$name $objdir/${name}S.${objext}"
+         if test "$fast_install" = yes && test -n "$relink_command"; then
+           rmfiles="$rmfiles $objdir/lt-$name"
+         fi
+       fi
+       ;;
+      esac
+      $show "$rm $rmfiles"
+      $run $rm $rmfiles || exit_status=1
+    done
+
+    # Try to remove the ${objdir}s in the directories where we deleted files
+    for dir in $rmdirs; do
+      if test -d "$dir"; then
+       $show "rmdir $dir"
+       $run rmdir $dir >/dev/null 2>&1
+      fi
+    done
+
+    exit $exit_status
+    ;;
+
+  "")
+    $echo "$modename: you must specify a MODE" 1>&2
+    $echo "$generic_help" 1>&2
+    exit 1
+    ;;
+  esac
+
+  if test -z "$exec_cmd"; then
+    $echo "$modename: invalid operation mode \`$mode'" 1>&2
+    $echo "$generic_help" 1>&2
+    exit 1
+  fi
+fi # test -z "$show_help"
+
+if test -n "$exec_cmd"; then
+  eval exec $exec_cmd
+  exit 1
+fi
+
+# We need to display help for each of the modes.
+case $mode in
+"") $echo \
+"Usage: $modename [OPTION]... [MODE-ARG]...
+
+Provide generalized library-building support services.
+
+    --config          show all configuration variables
+    --debug           enable verbose shell tracing
+-n, --dry-run         display commands without modifying any files
+    --features        display basic configuration information and exit
+    --finish          same as \`--mode=finish'
+    --help            display this help message and exit
+    --mode=MODE       use operation mode MODE [default=inferred from MODE-ARGS]
+    --quiet           same as \`--silent'
+    --silent          don't print informational messages
+    --version         print version information
+
+MODE must be one of the following:
+
+      clean           remove files from the build directory
+      compile         compile a source file into a libtool object
+      execute         automatically set library path, then run a program
+      finish          complete the installation of libtool libraries
+      install         install libraries or executables
+      link            create a library or an executable
+      uninstall       remove libraries from an installed directory
+
+MODE-ARGS vary depending on the MODE.  Try \`$modename --help --mode=MODE' for
+a more detailed description of MODE."
+  exit 0
+  ;;
+
+clean)
+  $echo \
+"Usage: $modename [OPTION]... --mode=clean RM [RM-OPTION]... FILE...
+
+Remove files from the build directory.
+
+RM is the name of the program to use to delete files associated with each FILE
+(typically \`/bin/rm').  RM-OPTIONS are options (such as \`-f') to be passed
+to RM.
+
+If FILE is a libtool library, object or program, all the files associated
+with it are deleted. Otherwise, only FILE itself is deleted using RM."
+  ;;
+
+compile)
+  $echo \
+"Usage: $modename [OPTION]... --mode=compile COMPILE-COMMAND... SOURCEFILE
+
+Compile a source file into a libtool library object.
+
+This mode accepts the following additional options:
+
+  -o OUTPUT-FILE    set the output file name to OUTPUT-FILE
+  -prefer-pic       try to building PIC objects only
+  -prefer-non-pic   try to building non-PIC objects only
+  -static           always build a \`.o' file suitable for static linking
+
+COMPILE-COMMAND is a command to be used in creating a \`standard' object file
+from the given SOURCEFILE.
+
+The output file name is determined by removing the directory component from
+SOURCEFILE, then substituting the C source code suffix \`.c' with the
+library object suffix, \`.lo'."
+  ;;
+
+execute)
+  $echo \
+"Usage: $modename [OPTION]... --mode=execute COMMAND [ARGS]...
+
+Automatically set library path, then run a program.
+
+This mode accepts the following additional options:
+
+  -dlopen FILE      add the directory containing FILE to the library path
+
+This mode sets the library path environment variable according to \`-dlopen'
+flags.
+
+If any of the ARGS are libtool executable wrappers, then they are translated
+into their corresponding uninstalled binary, and any of their required library
+directories are added to the library path.
+
+Then, COMMAND is executed, with ARGS as arguments."
+  ;;
+
+finish)
+  $echo \
+"Usage: $modename [OPTION]... --mode=finish [LIBDIR]...
+
+Complete the installation of libtool libraries.
+
+Each LIBDIR is a directory that contains libtool libraries.
+
+The commands that this mode executes may require superuser privileges.  Use
+the \`--dry-run' option if you just want to see what would be executed."
+  ;;
+
+install)
+  $echo \
+"Usage: $modename [OPTION]... --mode=install INSTALL-COMMAND...
+
+Install executables or libraries.
+
+INSTALL-COMMAND is the installation command.  The first component should be
+either the \`install' or \`cp' program.
+
+The rest of the components are interpreted as arguments to that command (only
+BSD-compatible install options are recognized)."
+  ;;
+
+link)
+  $echo \
+"Usage: $modename [OPTION]... --mode=link LINK-COMMAND...
+
+Link object files or libraries together to form another library, or to
+create an executable program.
+
+LINK-COMMAND is a command using the C compiler that you would use to create
+a program from several object files.
+
+The following components of LINK-COMMAND are treated specially:
+
+  -all-static       do not do any dynamic linking at all
+  -avoid-version    do not add a version suffix if possible
+  -dlopen FILE      \`-dlpreopen' FILE if it cannot be dlopened at runtime
+  -dlpreopen FILE   link in FILE and add its symbols to lt_preloaded_symbols
+  -export-dynamic   allow symbols from OUTPUT-FILE to be resolved with dlsym(3)
+  -export-symbols SYMFILE
+                   try to export only the symbols listed in SYMFILE
+  -export-symbols-regex REGEX
+                   try to export only the symbols matching REGEX
+  -LLIBDIR          search LIBDIR for required installed libraries
+  -lNAME            OUTPUT-FILE requires the installed library libNAME
+  -module           build a library that can dlopened
+  -no-fast-install  disable the fast-install mode
+  -no-install       link a not-installable executable
+  -no-undefined     declare that a library does not refer to external symbols
+  -o OUTPUT-FILE    create OUTPUT-FILE from the specified objects
+  -release RELEASE  specify package release information
+  -rpath LIBDIR     the created library will eventually be installed in LIBDIR
+  -R[ ]LIBDIR       add LIBDIR to the runtime path of programs and libraries
+  -static           do not do any dynamic linking of libtool libraries
+  -version-info CURRENT[:REVISION[:AGE]]
+                   specify library version info [each variable defaults to 0]
+
+All other options (arguments beginning with \`-') are ignored.
+
+Every other argument is treated as a filename.  Files ending in \`.la' are
+treated as uninstalled libtool libraries, other files are standard or library
+object files.
+
+If the OUTPUT-FILE ends in \`.la', then a libtool library is created,
+only library objects (\`.lo' files) may be specified, and \`-rpath' is
+required, except when creating a convenience library.
+
+If OUTPUT-FILE ends in \`.a' or \`.lib', then a standard library is created
+using \`ar' and \`ranlib', or on Windows using \`lib'.
+
+If OUTPUT-FILE ends in \`.lo' or \`.${objext}', then a reloadable object file
+is created, otherwise an executable program is created."
+  ;;
+
+uninstall)
+  $echo \
+"Usage: $modename [OPTION]... --mode=uninstall RM [RM-OPTION]... FILE...
+
+Remove libraries from an installation directory.
+
+RM is the name of the program to use to delete files associated with each FILE
+(typically \`/bin/rm').  RM-OPTIONS are options (such as \`-f') to be passed
+to RM.
+
+If FILE is a libtool library, all the files associated with it are deleted.
+Otherwise, only FILE itself is deleted using RM."
+  ;;
+
+*)
+  $echo "$modename: invalid operation mode \`$mode'" 1>&2
+  $echo "$help" 1>&2
+  exit 1
+  ;;
+esac
+
+echo
+$echo "Try \`$modename --help' for more information about other modes."
+
+exit 0
+
+# Local Variables:
+# mode:shell-script
+# sh-indentation:2
+# End:
diff --git a/m4/Makefile.am b/m4/Makefile.am
new file mode 100644 (file)
index 0000000..d9fab43
--- /dev/null
@@ -0,0 +1,4 @@
+## Process this file with automake to produce Makefile.in -*-Makefile-*-
+
+##m4-files-begin
+EXTRA_DIST = libelf.m4
diff --git a/m4/Makefile.in b/m4/Makefile.in
new file mode 100644 (file)
index 0000000..e7a76bf
--- /dev/null
@@ -0,0 +1,186 @@
+# Makefile.in generated automatically by automake 1.4-p5 from Makefile.am
+
+# Copyright (C) 1994, 1995-8, 1999, 2001 Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+
+SHELL = @SHELL@
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = @srcdir@
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+
+bindir = @bindir@
+sbindir = @sbindir@
+libexecdir = @libexecdir@
+datadir = @datadir@
+sysconfdir = @sysconfdir@
+sharedstatedir = @sharedstatedir@
+localstatedir = @localstatedir@
+libdir = @libdir@
+infodir = @infodir@
+mandir = @mandir@
+includedir = @includedir@
+oldincludedir = /usr/include
+
+DESTDIR =
+
+pkgdatadir = $(datadir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+
+top_builddir = ..
+
+ACLOCAL = @ACLOCAL@
+AUTOCONF = @AUTOCONF@
+AUTOMAKE = @AUTOMAKE@
+AUTOHEADER = @AUTOHEADER@
+
+INSTALL = @INSTALL@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@ $(AM_INSTALL_PROGRAM_FLAGS)
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+transform = @program_transform_name@
+
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+host_alias = @host_alias@
+host_triplet = @host@
+AS = @AS@
+CC = @CC@
+CPP = @CPP@
+CXX = @CXX@
+DLLTOOL = @DLLTOOL@
+GELFINCLUDE = @GELFINCLUDE@
+GETCONF = @GETCONF@
+LIBGELF = @LIBGELF@
+LIBTOOL = @LIBTOOL@
+LN_S = @LN_S@
+MAKEINFO = @MAKEINFO@
+OBJDUMP = @OBJDUMP@
+PACKAGE = @PACKAGE@
+RANLIB = @RANLIB@
+VERSION = @VERSION@
+
+EXTRA_DIST = libelf.m4
+mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
+CONFIG_HEADER = ../config.h
+CONFIG_CLEAN_FILES = 
+DIST_COMMON =  Makefile.am Makefile.in
+
+
+DISTFILES = $(DIST_COMMON) $(SOURCES) $(HEADERS) $(TEXINFOS) $(EXTRA_DIST)
+
+TAR = gtar
+GZIP_ENV = --best
+all: all-redirect
+.SUFFIXES:
+$(srcdir)/Makefile.in: Makefile.am $(top_srcdir)/configure.in $(ACLOCAL_M4) 
+       cd $(top_srcdir) && $(AUTOMAKE) --gnu m4/Makefile
+
+Makefile: $(srcdir)/Makefile.in  $(top_builddir)/config.status $(BUILT_SOURCES)
+       cd $(top_builddir) \
+         && CONFIG_FILES=$(subdir)/$@ CONFIG_HEADERS= $(SHELL) ./config.status
+
+tags: TAGS
+TAGS:
+
+
+distdir = $(top_builddir)/$(PACKAGE)-$(VERSION)/$(subdir)
+
+subdir = m4
+
+distdir: $(DISTFILES)
+       here=`cd $(top_builddir) && pwd`; \
+       top_distdir=`cd $(top_distdir) && pwd`; \
+       distdir=`cd $(distdir) && pwd`; \
+       cd $(top_srcdir) \
+         && $(AUTOMAKE) --include-deps --build-dir=$$here --srcdir-name=$(top_srcdir) --output-dir=$$top_distdir --gnu m4/Makefile
+       @for file in $(DISTFILES); do \
+         d=$(srcdir); \
+         if test -d $$d/$$file; then \
+           cp -pr $$d/$$file $(distdir)/$$file; \
+         else \
+           test -f $(distdir)/$$file \
+           || ln $$d/$$file $(distdir)/$$file 2> /dev/null \
+           || cp -p $$d/$$file $(distdir)/$$file || :; \
+         fi; \
+       done
+info-am:
+info: info-am
+dvi-am:
+dvi: dvi-am
+check-am: all-am
+check: check-am
+installcheck-am:
+installcheck: installcheck-am
+install-exec-am:
+install-exec: install-exec-am
+
+install-data-am:
+install-data: install-data-am
+
+install-am: all-am
+       @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+install: install-am
+uninstall-am:
+uninstall: uninstall-am
+all-am: Makefile
+all-redirect: all-am
+install-strip:
+       $(MAKE) $(AM_MAKEFLAGS) AM_INSTALL_PROGRAM_FLAGS=-s install
+installdirs:
+
+
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+       -rm -f Makefile $(CONFIG_CLEAN_FILES)
+       -rm -f config.cache config.log stamp-h stamp-h[0-9]*
+
+maintainer-clean-generic:
+mostlyclean-am:  mostlyclean-generic
+
+mostlyclean: mostlyclean-am
+
+clean-am:  clean-generic mostlyclean-am
+
+clean: clean-am
+
+distclean-am:  distclean-generic clean-am
+       -rm -f libtool
+
+distclean: distclean-am
+
+maintainer-clean-am:  maintainer-clean-generic distclean-am
+       @echo "This command is intended for maintainers to use;"
+       @echo "it deletes files that may require special tools to rebuild."
+
+maintainer-clean: maintainer-clean-am
+
+.PHONY: tags distdir info-am info dvi-am dvi check check-am \
+installcheck-am installcheck install-exec-am install-exec \
+install-data-am install-data install-am install uninstall-am uninstall \
+all-redirect all-am all installdirs mostlyclean-generic \
+distclean-generic clean-generic maintainer-clean-generic clean \
+mostlyclean distclean maintainer-clean
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/m4/libelf.m4 b/m4/libelf.m4
new file mode 100644 (file)
index 0000000..1156e34
--- /dev/null
@@ -0,0 +1,119 @@
+#serial 7
+
+dnl Some libelf versions have bugs in Elf64_Sxword conversions.
+dnl Detect it.
+
+dnl Written by Jakub Jelinek <jakub@redhat.com>.
+
+AC_DEFUN(AC_LIBELF_SXWORD,
+  [AC_TRY_RUN([
+#include <errno.h>
+#include <fcntl.h>
+#include <elf.h>
+#include <libelf.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+static unsigned char sparc64_elf[] = {
+0x7f,0x45,0x4c,0x46,0x02,0x02,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x01,0x00,0x2b,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x78,
+0x00,0x00,0x00,0x02,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x40,0x00,0x08,0x00,0x05,
+0x00,0x00,0x07,0xff,0xf0,0x00,0x00,0x00,0x00,0x2e,0x73,0x79,0x6d,0x74,0x61,0x62,
+0x00,0x2e,0x73,0x74,0x72,0x74,0x61,0x62,0x00,0x2e,0x73,0x68,0x73,0x74,0x72,0x74,
+0x61,0x62,0x00,0x2e,0x74,0x65,0x78,0x74,0x00,0x2e,0x64,0x61,0x74,0x61,0x00,0x2e,
+0x62,0x73,0x73,0x00,0x66,0x6f,0x6f,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1b,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x21,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x27,0x00,0x00,0x00,0x08,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x2c,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x11,0x00,0x00,0x00,0x03,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x48,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x02,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x78,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x78,
+0x00,0x00,0x00,0x07,0x00,0x00,0x00,0x05,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x00,0x00,0x00,0x09,0x00,0x00,0x00,0x03,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x02,0xf0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x02,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x04,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00 };
+
+int main (void)
+{
+  Elf *elf;
+  int fd;
+  Elf64_Ehdr *ehdr;
+  Elf64_Addr val;
+  Elf_Scn *scn;
+
+  fd = open ("conflibelftest", O_RDWR | O_CREAT | O_EXCL, 0600);
+  if (fd == -1) exit (1);
+  unlink ("conflibelftest");
+  if (write (fd, sparc64_elf, sizeof(sparc64_elf)) != sizeof(sparc64_elf))
+    exit (1);
+  if (lseek (fd, 0, SEEK_SET) != 0) exit (1);
+  elf_version (EV_CURRENT);
+  elf = elf_begin (fd, ELF_C_RDWR, NULL); if (elf == NULL) exit (2);
+  if ((ehdr = elf64_getehdr (elf)) == NULL) exit (3);
+  scn = NULL;
+  while ((scn = elf_nextscn (elf, scn)) != NULL)
+    {
+      char *name = NULL;
+      Elf64_Shdr *shdr;
+      Elf_Data *src, *dst;
+
+      if ((shdr = elf64_getshdr (scn))
+         && (name = elf_strptr (elf, ehdr->e_shstrndx, shdr->sh_name))
+         && !strcmp (name, "foo"))
+       {
+         src = elf_rawdata (scn, NULL);
+         if (shdr->sh_size != 8 || src->d_off || src->d_size != 8) exit (4);
+         if (src == NULL || elf_rawdata (scn, src) != NULL) exit (5);
+         if ((dst = elf_newdata (scn)) == NULL) exit (6);
+         dst->d_buf = &val;
+         dst->d_size = 8;
+         dst->d_off = 0;
+         dst->d_type = ELF_T_SXWORD;
+         src->d_type = ELF_T_SXWORD;
+         if (elf64_xlatetom (dst, src, ELFDATA2MSB) == NULL) exit (7);
+         if (val != 0x7fff0000000)
+           exit (42);
+         elf_end (elf);
+         exit (0);
+       }
+    }
+  exit (8);
+}
+    ],,[AC_MSG_ERROR([libelf does not properly convert Elf64_Sxword quantities.
+If you are using libelf-0.7.0, please use patches/libelf-0.7.0.patch.])],
+[AC_MSG_WARN([Could not test whether libelf properly converts Elf64_Sxword quantities.
+If you are using libelf-0.7.0 and your libelf is buggy, please use
+patches/libelf-0.7.0.patch.])])
+  ])
diff --git a/missing b/missing
new file mode 100755 (executable)
index 0000000..dd58370
--- /dev/null
+++ b/missing
@@ -0,0 +1,336 @@
+#! /bin/sh
+# Common stub for a few missing GNU programs while installing.
+# Copyright 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
+# Originally by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+if test $# -eq 0; then
+  echo 1>&2 "Try \`$0 --help' for more information"
+  exit 1
+fi
+
+run=:
+
+# In the cases where this matters, `missing' is being run in the
+# srcdir already.
+if test -f configure.ac; then
+  configure_ac=configure.ac
+else
+  configure_ac=configure.in
+fi
+
+case "$1" in
+--run)
+  # Try to run requested program, and just exit if it succeeds.
+  run=
+  shift
+  "$@" && exit 0
+  ;;
+esac
+
+# If it does not exist, or fails to run (possibly an outdated version),
+# try to emulate it.
+case "$1" in
+
+  -h|--h|--he|--hel|--help)
+    echo "\
+$0 [OPTION]... PROGRAM [ARGUMENT]...
+
+Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
+error status if there is no known handling for PROGRAM.
+
+Options:
+  -h, --help      display this help and exit
+  -v, --version   output version information and exit
+  --run           try to run the given command, and emulate it if it fails
+
+Supported PROGRAM values:
+  aclocal      touch file \`aclocal.m4'
+  autoconf     touch file \`configure'
+  autoheader   touch file \`config.h.in'
+  automake     touch all \`Makefile.in' files
+  bison        create \`y.tab.[ch]', if possible, from existing .[ch]
+  flex         create \`lex.yy.c', if possible, from existing .c
+  help2man     touch the output file
+  lex          create \`lex.yy.c', if possible, from existing .c
+  makeinfo     touch the output file
+  tar          try tar, gnutar, gtar, then tar without non-portable flags
+  yacc         create \`y.tab.[ch]', if possible, from existing .[ch]"
+    ;;
+
+  -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
+    echo "missing 0.4 - GNU automake"
+    ;;
+
+  -*)
+    echo 1>&2 "$0: Unknown \`$1' option"
+    echo 1>&2 "Try \`$0 --help' for more information"
+    exit 1
+    ;;
+
+  aclocal*)
+    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
+       # We have it, but it failed.
+       exit 1
+    fi
+
+    echo 1>&2 "\
+WARNING: \`$1' is missing on your system.  You should only need it if
+         you modified \`acinclude.m4' or \`${configure_ac}'.  You might want
+         to install the \`Automake' and \`Perl' packages.  Grab them from
+         any GNU archive site."
+    touch aclocal.m4
+    ;;
+
+  autoconf)
+    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
+       # We have it, but it failed.
+       exit 1
+    fi
+
+    echo 1>&2 "\
+WARNING: \`$1' is missing on your system.  You should only need it if
+         you modified \`${configure_ac}'.  You might want to install the
+         \`Autoconf' and \`GNU m4' packages.  Grab them from any GNU
+         archive site."
+    touch configure
+    ;;
+
+  autoheader)
+    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
+       # We have it, but it failed.
+       exit 1
+    fi
+
+    echo 1>&2 "\
+WARNING: \`$1' is missing on your system.  You should only need it if
+         you modified \`acconfig.h' or \`${configure_ac}'.  You might want
+         to install the \`Autoconf' and \`GNU m4' packages.  Grab them
+         from any GNU archive site."
+    files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
+    test -z "$files" && files="config.h"
+    touch_files=
+    for f in $files; do
+      case "$f" in
+      *:*) touch_files="$touch_files "`echo "$f" |
+                                      sed -e 's/^[^:]*://' -e 's/:.*//'`;;
+      *) touch_files="$touch_files $f.in";;
+      esac
+    done
+    touch $touch_files
+    ;;
+
+  automake*)
+    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
+       # We have it, but it failed.
+       exit 1
+    fi
+
+    echo 1>&2 "\
+WARNING: \`$1' is missing on your system.  You should only need it if
+         you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
+         You might want to install the \`Automake' and \`Perl' packages.
+         Grab them from any GNU archive site."
+    find . -type f -name Makefile.am -print |
+          sed 's/\.am$/.in/' |
+          while read f; do touch "$f"; done
+    ;;
+
+  autom4te)
+    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
+       # We have it, but it failed.
+       exit 1
+    fi
+
+    echo 1>&2 "\
+WARNING: \`$1' is needed, and you do not seem to have it handy on your
+         system.  You might have modified some files without having the
+         proper tools for further handling them.
+         You can get \`$1Help2man' as part of \`Autoconf' from any GNU
+         archive site."
+
+    file=`echo "$*" | sed -n 's/.*--output[ =]*\([^ ]*\).*/\1/p'`
+    test -z "$file" && file=`echo "$*" | sed -n 's/.*-o[ ]*\([^ ]*\).*/\1/p'`
+    if test -f "$file"; then
+       touch $file
+    else
+       test -z "$file" || exec >$file
+       echo "#! /bin/sh"
+       echo "# Created by GNU Automake missing as a replacement of"
+       echo "#  $ $@"
+       echo "exit 0"
+       chmod +x $file
+       exit 1
+    fi
+    ;;
+
+  bison|yacc)
+    echo 1>&2 "\
+WARNING: \`$1' is missing on your system.  You should only need it if
+         you modified a \`.y' file.  You may need the \`Bison' package
+         in order for those modifications to take effect.  You can get
+         \`Bison' from any GNU archive site."
+    rm -f y.tab.c y.tab.h
+    if [ $# -ne 1 ]; then
+        eval LASTARG="\${$#}"
+       case "$LASTARG" in
+       *.y)
+           SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
+           if [ -f "$SRCFILE" ]; then
+                cp "$SRCFILE" y.tab.c
+           fi
+           SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
+           if [ -f "$SRCFILE" ]; then
+                cp "$SRCFILE" y.tab.h
+           fi
+         ;;
+       esac
+    fi
+    if [ ! -f y.tab.h ]; then
+       echo >y.tab.h
+    fi
+    if [ ! -f y.tab.c ]; then
+       echo 'main() { return 0; }' >y.tab.c
+    fi
+    ;;
+
+  lex|flex)
+    echo 1>&2 "\
+WARNING: \`$1' is missing on your system.  You should only need it if
+         you modified a \`.l' file.  You may need the \`Flex' package
+         in order for those modifications to take effect.  You can get
+         \`Flex' from any GNU archive site."
+    rm -f lex.yy.c
+    if [ $# -ne 1 ]; then
+        eval LASTARG="\${$#}"
+       case "$LASTARG" in
+       *.l)
+           SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
+           if [ -f "$SRCFILE" ]; then
+                cp "$SRCFILE" lex.yy.c
+           fi
+         ;;
+       esac
+    fi
+    if [ ! -f lex.yy.c ]; then
+       echo 'main() { return 0; }' >lex.yy.c
+    fi
+    ;;
+
+  help2man)
+    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
+       # We have it, but it failed.
+       exit 1
+    fi
+
+    echo 1>&2 "\
+WARNING: \`$1' is missing on your system.  You should only need it if
+        you modified a dependency of a manual page.  You may need the
+        \`Help2man' package in order for those modifications to take
+        effect.  You can get \`Help2man' from any GNU archive site."
+
+    file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'`
+    if test -z "$file"; then
+       file=`echo "$*" | sed -n 's/.*--output=\([^ ]*\).*/\1/p'`
+    fi
+    if [ -f "$file" ]; then
+       touch $file
+    else
+       test -z "$file" || exec >$file
+       echo ".ab help2man is required to generate this page"
+       exit 1
+    fi
+    ;;
+
+  makeinfo)
+    if test -z "$run" && (makeinfo --version) > /dev/null 2>&1; then
+       # We have makeinfo, but it failed.
+       exit 1
+    fi
+
+    echo 1>&2 "\
+WARNING: \`$1' is missing on your system.  You should only need it if
+         you modified a \`.texi' or \`.texinfo' file, or any other file
+         indirectly affecting the aspect of the manual.  The spurious
+         call might also be the consequence of using a buggy \`make' (AIX,
+         DU, IRIX).  You might want to install the \`Texinfo' package or
+         the \`GNU make' package.  Grab either from any GNU archive site."
+    file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'`
+    if test -z "$file"; then
+      file=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
+      file=`sed -n '/^@setfilename/ { s/.* \([^ ]*\) *$/\1/; p; q; }' $file`
+    fi
+    touch $file
+    ;;
+
+  tar)
+    shift
+    if test -n "$run"; then
+      echo 1>&2 "ERROR: \`tar' requires --run"
+      exit 1
+    fi
+
+    # We have already tried tar in the generic part.
+    # Look for gnutar/gtar before invocation to avoid ugly error
+    # messages.
+    if (gnutar --version > /dev/null 2>&1); then
+       gnutar ${1+"$@"} && exit 0
+    fi
+    if (gtar --version > /dev/null 2>&1); then
+       gtar ${1+"$@"} && exit 0
+    fi
+    firstarg="$1"
+    if shift; then
+       case "$firstarg" in
+       *o*)
+           firstarg=`echo "$firstarg" | sed s/o//`
+           tar "$firstarg" ${1+"$@"} && exit 0
+           ;;
+       esac
+       case "$firstarg" in
+       *h*)
+           firstarg=`echo "$firstarg" | sed s/h//`
+           tar "$firstarg" ${1+"$@"} && exit 0
+           ;;
+       esac
+    fi
+
+    echo 1>&2 "\
+WARNING: I can't seem to be able to run \`tar' with the given arguments.
+         You may want to install GNU tar or Free paxutils, or check the
+         command line arguments."
+    exit 1
+    ;;
+
+  *)
+    echo 1>&2 "\
+WARNING: \`$1' is needed, and you do not seem to have it handy on your
+         system.  You might have modified some files without having the
+         proper tools for further handling them.  Check the \`README' file,
+         it often tells you about the needed prerequirements for installing
+         this package.  You may also peek at any GNU archive site, in case
+         some other package would contain this missing \`$1' program."
+    exit 1
+    ;;
+esac
+
+exit 0
diff --git a/mkinstalldirs b/mkinstalldirs
new file mode 100755 (executable)
index 0000000..f9c37af
--- /dev/null
@@ -0,0 +1,101 @@
+#! /bin/sh
+# mkinstalldirs --- make directory hierarchy
+# Author: Noah Friedman <friedman@prep.ai.mit.edu>
+# Created: 1993-05-16
+# Public domain
+
+# $Id: mkinstalldirs,v 1.13 1999/01/05 03:18:55 bje Exp $
+
+errstatus=0
+dirmode=""
+
+usage="\
+Usage: mkinstalldirs [-h] [--help] [-m mode] dir ..."
+
+# process command line arguments
+while test $# -gt 0 ; do
+   case "${1}" in
+     -h | --help | --h* )                      # -h for help
+       echo "${usage}" 1>&2; exit 0 ;;
+     -m )                                      # -m PERM arg
+       shift
+       test $# -eq 0 && { echo "${usage}" 1>&2; exit 1; }
+       dirmode="${1}"
+       shift ;;
+     -- ) shift; break ;;                      # stop option processing
+     -* ) echo "${usage}" 1>&2; exit 1 ;;      # unknown option
+     * )  break ;;                             # first non-opt arg
+   esac
+done
+
+for file
+do
+  if test -d "$file"; then
+    shift
+  else
+    break
+  fi
+done
+
+case $# in
+0) exit 0 ;;
+esac
+
+case $dirmode in
+'')
+  if mkdir -p -- . 2>/dev/null; then
+    echo "mkdir -p -- $*"
+    exec mkdir -p -- "$@"
+  fi ;;
+*)
+  if mkdir -m "$dirmode" -p -- . 2>/dev/null; then
+    echo "mkdir -m $dirmode -p -- $*"
+    exec mkdir -m "$dirmode" -p -- "$@"
+  fi ;;
+esac
+
+for file
+do
+   set fnord `echo ":$file" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`
+   shift
+
+   pathcomp=
+   for d
+   do
+     pathcomp="$pathcomp$d"
+     case "$pathcomp" in
+       -* ) pathcomp=./$pathcomp ;;
+     esac
+
+     if test ! -d "$pathcomp"; then
+       echo "mkdir $pathcomp"
+
+       mkdir "$pathcomp" || lasterr=$?
+
+       if test ! -d "$pathcomp"; then
+         errstatus=$lasterr
+       else
+         if test ! -z "$dirmode"; then
+            echo "chmod $dirmode $pathcomp"
+
+            lasterr=""
+            chmod "$dirmode" "$pathcomp" || lasterr=$?
+
+            if test ! -z "$lasterr"; then
+              errstatus=$lasterr
+            fi
+         fi
+       fi
+     fi
+
+     pathcomp="$pathcomp/"
+   done
+done
+
+exit $errstatus
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 3
+# End:
+# mkinstalldirs ends here
diff --git a/packaging/prelink.conf b/packaging/prelink.conf
new file mode 100644 (file)
index 0000000..8959bf0
--- /dev/null
@@ -0,0 +1,44 @@
+# This config file contains a list of directories both with binaries
+# and libraries prelink should consider by default.
+# If a directory name is prefixed with `-l ', the directory hierarchy
+# will be walked as long as filesystem boundaries are not crossed.
+# If a directory name is prefixed with `-h ', symbolic links in a
+# directory hierarchy are followed.
+# Directories or files with `-b ' prefix will be blacklisted.
+-b *.la
+-b *.png
+-b *.py
+-b *.pl
+-b *.pm
+-b *.sh
+-b *.xml
+-b *.xslt
+-b *.a
+-b *.js
+-b /lib/modules
+-b /usr/lib/locale
+-l /usr/local/sbin
+-l /sbin
+-l /usr/sbin
+-l /usr/local/bin
+-l /bin
+-l /usr/bin
+-l /usr/X11R6/bin
+-l /usr/games
+-l /usr/local/lib
+-l /lib
+-l /usr/lib
+-l /usr/X11R6/lib
+
+# Non-standard directories in SLP containing ELF binaries
+-l /default-files
+-l /opt/apps
+-l /opt/lib
+-l /opt/live
+-l /opt/ug-1/lib
+-l /opt/ug/lib
+-l /usr/etc/package-manager/backendlib
+-l /usr/libexec
+-l /usr/share/air25-runtime
+-l /usr/share/scim
+-l /usr/share/we/bin
diff --git a/packaging/prelink.spec b/packaging/prelink.spec
new file mode 100644 (file)
index 0000000..41f96b1
--- /dev/null
@@ -0,0 +1,53 @@
+#sbs-git:slp/pkgs/p/prelink prelink 0.0.20100106 53be293a9c8dc4944a4194b79f7d627dd1056a04
+Name:       prelink
+Summary:    An ELF prelinking utility
+Version:    0.0.20100106
+Release:    1
+Group:      System/Base
+License:    GPLv2+
+Source0:    http://people.redhat.com/jakub/prelink/%{name}-%{version}.tar.gz
+Source1:    prelink.conf
+Requires:   /bin/find
+Requires:   /bin/awk
+Requires:   /bin/grep
+BuildRequires:  elfutils-libelf-devel-static
+BuildRequires:  glibc-static
+
+
+%description
+The prelink package contains a utility which modifies ELF shared libraries
+and executables, so that far fewer relocations need to be resolved at runtime
+and thus programs come up faster.
+
+
+
+
+%prep
+%setup -q
+
+
+%build
+%configure \
+       --disable-shared \
+       --disable-libtool-lock \
+       --disable-dependency-tracking
+
+make %{?jobs:-j%jobs}
+
+%install
+rm -rf %{buildroot}
+%make_install
+
+mkdir -p %{buildroot}%{_sysconfdir}
+cp -af %{SOURCE1} %{buildroot}%{_sysconfdir}
+
+%remove_docs
+
+
+
+%files
+%verify(not md5 size mtime) %config(noreplace) %{_sysconfdir}/prelink.conf
+%{_prefix}/sbin/prelink
+%{_prefix}/bin/execstack
+
+
diff --git a/patches/Makefile.am b/patches/Makefile.am
new file mode 100644 (file)
index 0000000..efe5d40
--- /dev/null
@@ -0,0 +1,5 @@
+## Process this file with automake to create Makefile.in
+
+AUTOMAKE_OPTIONS = 1.4 gnu
+
+EXTRA_DIST = libelf-0.7.0.patch libelf-0.7.0-hash.patch linux-2.4.10.patch
diff --git a/patches/Makefile.in b/patches/Makefile.in
new file mode 100644 (file)
index 0000000..8412943
--- /dev/null
@@ -0,0 +1,231 @@
+# Makefile.in generated by automake 1.6.3 from Makefile.am.
+# @configure_input@
+
+# Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
+# Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+SHELL = @SHELL@
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = @srcdir@
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+
+bindir = @bindir@
+sbindir = @sbindir@
+libexecdir = @libexecdir@
+datadir = @datadir@
+sysconfdir = @sysconfdir@
+sharedstatedir = @sharedstatedir@
+localstatedir = @localstatedir@
+libdir = @libdir@
+infodir = @infodir@
+mandir = @mandir@
+includedir = @includedir@
+oldincludedir = /usr/include
+pkgdatadir = $(datadir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+top_builddir = ..
+
+ACLOCAL = @ACLOCAL@
+AUTOCONF = @AUTOCONF@
+AUTOMAKE = @AUTOMAKE@
+AUTOHEADER = @AUTOHEADER@
+
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+INSTALL = @INSTALL@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_DATA = @INSTALL_DATA@
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = @program_transform_name@
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+host_alias = @host_alias@
+host_triplet = @host@
+
+EXEEXT = @EXEEXT@
+OBJEXT = @OBJEXT@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+AMTAR = @AMTAR@
+AR = @AR@
+AS = @AS@
+AWK = @AWK@
+CC = @CC@
+CPP = @CPP@
+CXX = @CXX@
+CXXCPP = @CXXCPP@
+DEPDIR = @DEPDIR@
+DLLTOOL = @DLLTOOL@
+ECHO = @ECHO@
+EGREP = @EGREP@
+F77 = @F77@
+GCJ = @GCJ@
+GCJFLAGS = @GCJFLAGS@
+GELFINCLUDE = @GELFINCLUDE@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LIBGELF = @LIBGELF@
+LIBTOOL = @LIBTOOL@
+LN_S = @LN_S@
+OBJDUMP = @OBJDUMP@
+PACKAGE = @PACKAGE@
+RANLIB = @RANLIB@
+RC = @RC@
+STRIP = @STRIP@
+VERSION = @VERSION@
+am__include = @am__include@
+am__quote = @am__quote@
+install_sh = @install_sh@
+
+AUTOMAKE_OPTIONS = 1.4 gnu
+
+EXTRA_DIST = libelf-0.7.0.patch libelf-0.7.0-hash.patch linux-2.4.10.patch
+subdir = patches
+mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+DIST_SOURCES =
+DIST_COMMON = Makefile.am Makefile.in
+all: all-am
+
+.SUFFIXES:
+$(srcdir)/Makefile.in:  Makefile.am  $(top_srcdir)/configure.in $(ACLOCAL_M4)
+       cd $(top_srcdir) && \
+         $(AUTOMAKE) --gnu  patches/Makefile
+Makefile:  $(srcdir)/Makefile.in  $(top_builddir)/config.status
+       cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)
+
+mostlyclean-libtool:
+       -rm -f *.lo
+
+clean-libtool:
+       -rm -rf .libs _libs
+
+distclean-libtool:
+       -rm -f libtool
+uninstall-info-am:
+tags: TAGS
+TAGS:
+
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+
+top_distdir = ..
+distdir = $(top_distdir)/$(PACKAGE)-$(VERSION)
+
+distdir: $(DISTFILES)
+       @list='$(DISTFILES)'; for file in $$list; do \
+         if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+         dir=`echo "$$file" | sed -e 's,/[^/]*$$,,'`; \
+         if test "$$dir" != "$$file" && test "$$dir" != "."; then \
+           dir="/$$dir"; \
+           $(mkinstalldirs) "$(distdir)$$dir"; \
+         else \
+           dir=''; \
+         fi; \
+         if test -d $$d/$$file; then \
+           if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+             cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+           fi; \
+           cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+         else \
+           test -f $(distdir)/$$file \
+           || cp -p $$d/$$file $(distdir)/$$file \
+           || exit 1; \
+         fi; \
+       done
+check-am: all-am
+check: check-am
+all-am: Makefile
+
+installdirs:
+
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+       @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+       $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+         INSTALL_STRIP_FLAG=-s \
+         `test -z '$(STRIP)' || \
+           echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+       -rm -f Makefile $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+       @echo "This command is intended for maintainers to use"
+       @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-am
+
+distclean-am: clean-am distclean-generic distclean-libtool
+
+dvi: dvi-am
+
+dvi-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-exec-am:
+
+install-info: install-info-am
+
+install-man:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+uninstall-am: uninstall-info-am
+
+.PHONY: all all-am check check-am clean clean-generic clean-libtool \
+       distclean distclean-generic distclean-libtool distdir dvi \
+       dvi-am info info-am install install-am install-data \
+       install-data-am install-exec install-exec-am install-info \
+       install-info-am install-man install-strip installcheck \
+       installcheck-am installdirs maintainer-clean \
+       maintainer-clean-generic mostlyclean mostlyclean-generic \
+       mostlyclean-libtool uninstall uninstall-am uninstall-info-am
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/patches/libelf-0.7.0-hash.patch b/patches/libelf-0.7.0-hash.patch
new file mode 100644 (file)
index 0000000..7fcf7f3
--- /dev/null
@@ -0,0 +1,20 @@
+2002-06-14  Jakub Jelinek  <jakub@redhat.com>
+
+       * update.c (_elf64_layout): Don't overwrite sh_entsize
+       unconditionally for ELF64 - some platforms use
+       64 bit DT_HASH entries.
+
+--- libelf-0.7.0/lib/update.c.jj       Fri Jun 12 15:42:39 1998
++++ libelf-0.7.0/lib/update.c  Fri Jun 14 10:22:19 2002
+@@ -317,7 +317,10 @@ _elf64_layout(Elf *elf, unsigned *flag) 
+       entsize = scn_entsize(elf, version, shdr->sh_type);
+       if (entsize > 1) {
+-          rewrite(shdr->sh_entsize, entsize, scn->s_shdr_flags);
++          /* Some architectures use 64-bit hash entries.  */
++          if (shdr->sh_type != SHT_HASH
++              || shdr->sh_entsize != _fsize(elf->e_class, version, ELF_T_ADDR))
++              rewrite(shdr->sh_entsize, entsize, scn->s_shdr_flags);
+       }
+       if (layout) {
diff --git a/patches/libelf-0.7.0.patch b/patches/libelf-0.7.0.patch
new file mode 100644 (file)
index 0000000..1e9e57a
--- /dev/null
@@ -0,0 +1,16 @@
+2001-09-26  Jakub Jelinek  <jakub@redhat.com>
+
+       * lib/64.xlatetof.c (__load_i64M): Don't blow away upper 32 bits
+       if 31th bit is set.
+
+--- libelf-0.7.0/lib/64.xlatetof.c.jj  Tue Aug 25 17:22:24 1998
++++ libelf-0.7.0/lib/64.xlatetof.c     Wed Sep 26 15:00:18 2001
+@@ -42,7 +42,7 @@ __load_i64L(const unsigned char *from) {
+ static __libelf_i64_t
+ __load_i64M(const unsigned char *from) {
+-    return ((__libelf_u64_t)__load_u32M(from) << 32) | (__libelf_i64_t)__load_i32M(from + 4);
++    return ((__libelf_i64_t)__load_i32M(from) << 32) | (__libelf_u64_t)__load_u32M(from + 4);
+ }
+ static void
diff --git a/patches/linux-2.4.10.patch b/patches/linux-2.4.10.patch
new file mode 100644 (file)
index 0000000..dbd6702
--- /dev/null
@@ -0,0 +1,50 @@
+--- linux/fs/binfmt_elf.c.jj   Thu Sep  6 16:12:04 2001
++++ linux/fs/binfmt_elf.c      Mon Oct  1 08:22:06 2001
+@@ -400,7 +400,6 @@ static int load_elf_binary(struct linux_
+       int load_addr_set = 0;
+       char * elf_interpreter = NULL;
+       unsigned int interpreter_type = INTERPRETER_NONE;
+-      mm_segment_t old_fs;
+       unsigned long error;
+       struct elf_phdr * elf_ppnt, *elf_phdata;
+       unsigned long elf_bss, k, elf_brk;
+@@ -574,8 +573,6 @@ static int load_elf_binary(struct linux_
+          the image should be loaded at fixed address, not at a variable
+          address. */
+-      old_fs = get_fs();
+-      set_fs(get_ds());
+       for(i = 0, elf_ppnt = elf_phdata; i < elf_ex.e_phnum; i++, elf_ppnt++) {
+               int elf_prot = 0, elf_flags;
+               unsigned long vaddr;
+@@ -583,6 +580,22 @@ static int load_elf_binary(struct linux_
+               if (elf_ppnt->p_type != PT_LOAD)
+                       continue;
++              if (unlikely (elf_brk > elf_bss)) {
++                      unsigned long nbyte;
++                  
++                      /* There was a PT_LOAD segment with p_memsz > p_filesz
++                         before this one. Map anonymous pages, if needed,
++                         and clear the area.  */
++                      set_brk (elf_bss + load_bias, elf_brk + load_bias);
++                      nbyte = ELF_PAGEOFFSET(elf_bss);
++                      if (nbyte) {
++                              nbyte = ELF_MIN_ALIGN - nbyte;
++                              if (nbyte > elf_brk - elf_bss)
++                                      nbyte = elf_brk - elf_bss;
++                              clear_user((void *) elf_bss + elf_bias, nbyte);
++                      }
++              }
++
+               if (elf_ppnt->p_flags & PF_R) elf_prot |= PROT_READ;
+               if (elf_ppnt->p_flags & PF_W) elf_prot |= PROT_WRITE;
+               if (elf_ppnt->p_flags & PF_X) elf_prot |= PROT_EXEC;
+@@ -626,7 +639,6 @@ static int load_elf_binary(struct linux_
+               if (k > elf_brk)
+                       elf_brk = k;
+       }
+-      set_fs(old_fs);
+       elf_entry += load_bias;
+       elf_bss += load_bias;
diff --git a/src/Makefile.am b/src/Makefile.am
new file mode 100644 (file)
index 0000000..d2265aa
--- /dev/null
@@ -0,0 +1,28 @@
+## Process this file with automake to create Makefile.in
+
+AUTOMAKE_OPTIONS = 1.4 gnu
+
+DEFS = -D_GNU_SOURCE -DHAVE_CONFIG_H -Wall -Wno-pointer-sign
+AM_CFLAGS = -Wall -Wno-pointer-sign
+AM_CPPFLAGS = -DSBINDIR='"@sbindir@"'
+INCLUDES = @GELFINCLUDE@
+
+sbin_PROGRAMS = prelink
+bin_PROGRAMS = execstack
+
+arch_SOURCES = arch-i386.c arch-alpha.c arch-ppc.c arch-ppc64.c \
+              arch-sparc.c arch-sparc64.c arch-x86_64.c arch-mips.c \
+              arch-s390.c arch-s390x.c arch-arm.c arch-sh.c arch-ia64.c
+common_SOURCES = checksum.c data.c dso.c dwarf2.c dwarf2.h fptr.c fptr.h     \
+                hashtab.c hashtab.h mdebug.c prelink.h stabs.c crc32.c
+prelink_SOURCES = cache.c conflict.c cxx.c doit.c exec.c execle_open.c get.c \
+                 gather.c layout.c main.c prelink.c     \
+                 prelinktab.h reloc.c reloc.h space.c undo.c undoall.c      \
+                 verify.c canonicalize.c md5.c md5.h sha.c sha.h            \
+                 $(common_SOURCES) $(arch_SOURCES)
+prelink_LDADD = @LIBGELF@
+prelink_LDFLAGS = -all-static
+
+execstack_SOURCES = execstack.c $(common_SOURCES) $(arch_SOURCES)
+
+extra_DIST = makecrc.c
diff --git a/src/Makefile.in b/src/Makefile.in
new file mode 100644 (file)
index 0000000..85cf845
--- /dev/null
@@ -0,0 +1,500 @@
+# Makefile.in generated by automake 1.6.3 from Makefile.am.
+# @configure_input@
+
+# Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
+# Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+SHELL = @SHELL@
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = @srcdir@
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+
+bindir = @bindir@
+sbindir = @sbindir@
+libexecdir = @libexecdir@
+datadir = @datadir@
+sysconfdir = @sysconfdir@
+sharedstatedir = @sharedstatedir@
+localstatedir = @localstatedir@
+libdir = @libdir@
+infodir = @infodir@
+mandir = @mandir@
+includedir = @includedir@
+oldincludedir = /usr/include
+pkgdatadir = $(datadir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+top_builddir = ..
+
+ACLOCAL = @ACLOCAL@
+AUTOCONF = @AUTOCONF@
+AUTOMAKE = @AUTOMAKE@
+AUTOHEADER = @AUTOHEADER@
+
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+INSTALL = @INSTALL@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_DATA = @INSTALL_DATA@
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = @program_transform_name@
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+host_alias = @host_alias@
+host_triplet = @host@
+
+EXEEXT = @EXEEXT@
+OBJEXT = @OBJEXT@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+AMTAR = @AMTAR@
+AR = @AR@
+AS = @AS@
+AWK = @AWK@
+CC = @CC@
+CPP = @CPP@
+CXX = @CXX@
+CXXCPP = @CXXCPP@
+DEPDIR = @DEPDIR@
+DLLTOOL = @DLLTOOL@
+ECHO = @ECHO@
+EGREP = @EGREP@
+F77 = @F77@
+GCJ = @GCJ@
+GCJFLAGS = @GCJFLAGS@
+GELFINCLUDE = @GELFINCLUDE@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LIBGELF = @LIBGELF@
+LIBTOOL = @LIBTOOL@
+LN_S = @LN_S@
+OBJDUMP = @OBJDUMP@
+PACKAGE = @PACKAGE@
+RANLIB = @RANLIB@
+RC = @RC@
+STRIP = @STRIP@
+VERSION = @VERSION@
+am__include = @am__include@
+am__quote = @am__quote@
+install_sh = @install_sh@
+
+AUTOMAKE_OPTIONS = 1.4 gnu
+
+DEFS = -D_GNU_SOURCE -DHAVE_CONFIG_H -Wall -Wno-pointer-sign
+AM_CFLAGS = -Wall -Wno-pointer-sign
+AM_CPPFLAGS = -DSBINDIR='"@sbindir@"'
+INCLUDES = @GELFINCLUDE@
+
+sbin_PROGRAMS = prelink
+bin_PROGRAMS = execstack
+
+arch_SOURCES = arch-i386.c arch-alpha.c arch-ppc.c arch-ppc64.c \
+              arch-sparc.c arch-sparc64.c arch-x86_64.c arch-mips.c \
+              arch-s390.c arch-s390x.c arch-arm.c arch-sh.c arch-ia64.c
+
+common_SOURCES = checksum.c data.c dso.c dwarf2.c dwarf2.h fptr.c fptr.h     \
+                hashtab.c hashtab.h mdebug.c prelink.h stabs.c crc32.c
+
+prelink_SOURCES = cache.c conflict.c cxx.c doit.c exec.c execle_open.c get.c \
+                 gather.c layout.c main.c prelink.c     \
+                 prelinktab.h reloc.c reloc.h space.c undo.c undoall.c      \
+                 verify.c canonicalize.c md5.c md5.h sha.c sha.h            \
+                 $(common_SOURCES) $(arch_SOURCES)
+
+prelink_LDADD = @LIBGELF@
+prelink_LDFLAGS = -all-static
+
+execstack_SOURCES = execstack.c $(common_SOURCES) $(arch_SOURCES)
+
+extra_DIST = makecrc.c
+subdir = src
+mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+bin_PROGRAMS = execstack$(EXEEXT)
+sbin_PROGRAMS = prelink$(EXEEXT)
+PROGRAMS = $(bin_PROGRAMS) $(sbin_PROGRAMS)
+
+am__objects_1 = checksum.$(OBJEXT) data.$(OBJEXT) dso.$(OBJEXT) \
+       dwarf2.$(OBJEXT) fptr.$(OBJEXT) hashtab.$(OBJEXT) \
+       mdebug.$(OBJEXT) stabs.$(OBJEXT) crc32.$(OBJEXT)
+am__objects_2 = arch-i386.$(OBJEXT) arch-alpha.$(OBJEXT) \
+       arch-ppc.$(OBJEXT) arch-ppc64.$(OBJEXT) arch-sparc.$(OBJEXT) \
+       arch-sparc64.$(OBJEXT) arch-x86_64.$(OBJEXT) \
+       arch-mips.$(OBJEXT) arch-s390.$(OBJEXT) arch-s390x.$(OBJEXT) \
+       arch-arm.$(OBJEXT) arch-sh.$(OBJEXT) arch-ia64.$(OBJEXT)
+am_execstack_OBJECTS = execstack.$(OBJEXT) $(am__objects_1) \
+       $(am__objects_2)
+execstack_OBJECTS = $(am_execstack_OBJECTS)
+execstack_LDADD = $(LDADD)
+execstack_DEPENDENCIES =
+execstack_LDFLAGS =
+am_prelink_OBJECTS = cache.$(OBJEXT) conflict.$(OBJEXT) cxx.$(OBJEXT) \
+       doit.$(OBJEXT) exec.$(OBJEXT) execle_open.$(OBJEXT) \
+       get.$(OBJEXT) gather.$(OBJEXT) layout.$(OBJEXT) main.$(OBJEXT) \
+       prelink.$(OBJEXT) reloc.$(OBJEXT) space.$(OBJEXT) \
+       undo.$(OBJEXT) undoall.$(OBJEXT) verify.$(OBJEXT) \
+       canonicalize.$(OBJEXT) md5.$(OBJEXT) sha.$(OBJEXT) \
+       $(am__objects_1) $(am__objects_2)
+prelink_OBJECTS = $(am_prelink_OBJECTS)
+prelink_DEPENDENCIES =
+DEFAULT_INCLUDES =  -I. -I$(srcdir) -I$(top_builddir)
+CPPFLAGS = @CPPFLAGS@
+LDFLAGS = @LDFLAGS@
+LIBS = @LIBS@
+depcomp = $(SHELL) $(top_srcdir)/depcomp
+am__depfiles_maybe = depfiles
+@AMDEP_TRUE@DEP_FILES = ./$(DEPDIR)/arch-alpha.Po \
+@AMDEP_TRUE@   ./$(DEPDIR)/arch-arm.Po ./$(DEPDIR)/arch-i386.Po \
+@AMDEP_TRUE@   ./$(DEPDIR)/arch-ia64.Po ./$(DEPDIR)/arch-mips.Po \
+@AMDEP_TRUE@   ./$(DEPDIR)/arch-ppc.Po ./$(DEPDIR)/arch-ppc64.Po \
+@AMDEP_TRUE@   ./$(DEPDIR)/arch-s390.Po ./$(DEPDIR)/arch-s390x.Po \
+@AMDEP_TRUE@   ./$(DEPDIR)/arch-sh.Po ./$(DEPDIR)/arch-sparc.Po \
+@AMDEP_TRUE@   ./$(DEPDIR)/arch-sparc64.Po \
+@AMDEP_TRUE@   ./$(DEPDIR)/arch-x86_64.Po ./$(DEPDIR)/cache.Po \
+@AMDEP_TRUE@   ./$(DEPDIR)/canonicalize.Po ./$(DEPDIR)/checksum.Po \
+@AMDEP_TRUE@   ./$(DEPDIR)/conflict.Po ./$(DEPDIR)/crc32.Po \
+@AMDEP_TRUE@   ./$(DEPDIR)/cxx.Po ./$(DEPDIR)/data.Po \
+@AMDEP_TRUE@   ./$(DEPDIR)/doit.Po ./$(DEPDIR)/dso.Po \
+@AMDEP_TRUE@   ./$(DEPDIR)/dwarf2.Po ./$(DEPDIR)/exec.Po \
+@AMDEP_TRUE@   ./$(DEPDIR)/execle_open.Po ./$(DEPDIR)/execstack.Po \
+@AMDEP_TRUE@   ./$(DEPDIR)/fptr.Po ./$(DEPDIR)/gather.Po \
+@AMDEP_TRUE@   ./$(DEPDIR)/get.Po ./$(DEPDIR)/hashtab.Po \
+@AMDEP_TRUE@   ./$(DEPDIR)/layout.Po ./$(DEPDIR)/main.Po \
+@AMDEP_TRUE@   ./$(DEPDIR)/md5.Po ./$(DEPDIR)/mdebug.Po \
+@AMDEP_TRUE@   ./$(DEPDIR)/prelink.Po ./$(DEPDIR)/reloc.Po \
+@AMDEP_TRUE@   ./$(DEPDIR)/sha.Po ./$(DEPDIR)/space.Po \
+@AMDEP_TRUE@   ./$(DEPDIR)/stabs.Po ./$(DEPDIR)/undo.Po \
+@AMDEP_TRUE@   ./$(DEPDIR)/undoall.Po ./$(DEPDIR)/verify.Po
+COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
+       $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) \
+       $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+CCLD = $(CC)
+LINK = $(LIBTOOL) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+       $(AM_LDFLAGS) $(LDFLAGS) -o $@
+CFLAGS = @CFLAGS@
+DIST_SOURCES = $(execstack_SOURCES) $(prelink_SOURCES)
+DIST_COMMON = Makefile.am Makefile.in
+SOURCES = $(execstack_SOURCES) $(prelink_SOURCES)
+
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .c .lo .o .obj
+$(srcdir)/Makefile.in:  Makefile.am  $(top_srcdir)/configure.in $(ACLOCAL_M4)
+       cd $(top_srcdir) && \
+         $(AUTOMAKE) --gnu  src/Makefile
+Makefile:  $(srcdir)/Makefile.in  $(top_builddir)/config.status
+       cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)
+binPROGRAMS_INSTALL = $(INSTALL_PROGRAM)
+install-binPROGRAMS: $(bin_PROGRAMS)
+       @$(NORMAL_INSTALL)
+       $(mkinstalldirs) $(DESTDIR)$(bindir)
+       @list='$(bin_PROGRAMS)'; for p in $$list; do \
+         p1=`echo $$p|sed 's/$(EXEEXT)$$//'`; \
+         if test -f $$p \
+            || test -f $$p1 \
+         ; then \
+           f=`echo "$$p1" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`; \
+          echo " $(INSTALL_PROGRAM_ENV) $(LIBTOOL) --mode=install $(binPROGRAMS_INSTALL) $$p $(DESTDIR)$(bindir)/$$f"; \
+          $(INSTALL_PROGRAM_ENV) $(LIBTOOL) --mode=install $(binPROGRAMS_INSTALL) $$p $(DESTDIR)$(bindir)/$$f; \
+         else :; fi; \
+       done
+
+uninstall-binPROGRAMS:
+       @$(NORMAL_UNINSTALL)
+       @list='$(bin_PROGRAMS)'; for p in $$list; do \
+         f=`echo "$$p" | sed 's,^.*/,,;s/$(EXEEXT)$$//;$(transform);s/$$/$(EXEEXT)/'`; \
+         echo " rm -f $(DESTDIR)$(bindir)/$$f"; \
+         rm -f $(DESTDIR)$(bindir)/$$f; \
+       done
+
+clean-binPROGRAMS:
+       @list='$(bin_PROGRAMS)'; for p in $$list; do \
+         f=`echo $$p|sed 's/$(EXEEXT)$$//'`; \
+         echo " rm -f $$p $$f"; \
+         rm -f $$p $$f ; \
+       done
+sbinPROGRAMS_INSTALL = $(INSTALL_PROGRAM)
+install-sbinPROGRAMS: $(sbin_PROGRAMS)
+       @$(NORMAL_INSTALL)
+       $(mkinstalldirs) $(DESTDIR)$(sbindir)
+       @list='$(sbin_PROGRAMS)'; for p in $$list; do \
+         p1=`echo $$p|sed 's/$(EXEEXT)$$//'`; \
+         if test -f $$p \
+            || test -f $$p1 \
+         ; then \
+           f=`echo "$$p1" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`; \
+          echo " $(INSTALL_PROGRAM_ENV) $(LIBTOOL) --mode=install $(sbinPROGRAMS_INSTALL) $$p $(DESTDIR)$(sbindir)/$$f"; \
+          $(INSTALL_PROGRAM_ENV) $(LIBTOOL) --mode=install $(sbinPROGRAMS_INSTALL) $$p $(DESTDIR)$(sbindir)/$$f; \
+         else :; fi; \
+       done
+
+uninstall-sbinPROGRAMS:
+       @$(NORMAL_UNINSTALL)
+       @list='$(sbin_PROGRAMS)'; for p in $$list; do \
+         f=`echo "$$p" | sed 's,^.*/,,;s/$(EXEEXT)$$//;$(transform);s/$$/$(EXEEXT)/'`; \
+         echo " rm -f $(DESTDIR)$(sbindir)/$$f"; \
+         rm -f $(DESTDIR)$(sbindir)/$$f; \
+       done
+
+clean-sbinPROGRAMS:
+       @list='$(sbin_PROGRAMS)'; for p in $$list; do \
+         f=`echo $$p|sed 's/$(EXEEXT)$$//'`; \
+         echo " rm -f $$p $$f"; \
+         rm -f $$p $$f ; \
+       done
+execstack$(EXEEXT): $(execstack_OBJECTS) $(execstack_DEPENDENCIES) 
+       @rm -f execstack$(EXEEXT)
+       $(LINK) $(execstack_LDFLAGS) $(execstack_OBJECTS) $(execstack_LDADD) $(LIBS)
+prelink$(EXEEXT): $(prelink_OBJECTS) $(prelink_DEPENDENCIES) 
+       @rm -f prelink$(EXEEXT)
+       $(LINK) $(prelink_LDFLAGS) $(prelink_OBJECTS) $(prelink_LDADD) $(LIBS)
+
+mostlyclean-compile:
+       -rm -f *.$(OBJEXT) core *.core
+
+distclean-compile:
+       -rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/arch-alpha.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/arch-arm.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/arch-i386.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/arch-ia64.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/arch-mips.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/arch-ppc.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/arch-ppc64.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/arch-s390.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/arch-s390x.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/arch-sh.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/arch-sparc.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/arch-sparc64.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/arch-x86_64.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cache.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/canonicalize.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/checksum.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/conflict.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/crc32.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cxx.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/data.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/doit.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/dso.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/dwarf2.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/exec.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/execle_open.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/execstack.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/fptr.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/gather.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/get.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/hashtab.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/layout.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/main.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/md5.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/mdebug.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/prelink.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/reloc.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/sha.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/space.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/stabs.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/undo.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/undoall.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/verify.Po@am__quote@
+
+distclean-depend:
+       -rm -rf ./$(DEPDIR)
+
+.c.o:
+@AMDEP_TRUE@   source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@   depfile='$(DEPDIR)/$*.Po' tmpdepfile='$(DEPDIR)/$*.TPo' @AMDEPBACKSLASH@
+@AMDEP_TRUE@   $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+       $(COMPILE) -c `test -f '$<' || echo '$(srcdir)/'`$<
+
+.c.obj:
+@AMDEP_TRUE@   source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@   depfile='$(DEPDIR)/$*.Po' tmpdepfile='$(DEPDIR)/$*.TPo' @AMDEPBACKSLASH@
+@AMDEP_TRUE@   $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+       $(COMPILE) -c `cygpath -w $<`
+
+.c.lo:
+@AMDEP_TRUE@   source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@   depfile='$(DEPDIR)/$*.Plo' tmpdepfile='$(DEPDIR)/$*.TPlo' @AMDEPBACKSLASH@
+@AMDEP_TRUE@   $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+       $(LTCOMPILE) -c -o $@ `test -f '$<' || echo '$(srcdir)/'`$<
+CCDEPMODE = @CCDEPMODE@
+
+mostlyclean-libtool:
+       -rm -f *.lo
+
+clean-libtool:
+       -rm -rf .libs _libs
+
+distclean-libtool:
+       -rm -f libtool
+uninstall-info-am:
+
+ETAGS = etags
+ETAGSFLAGS =
+
+tags: TAGS
+
+ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
+       list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+       unique=`for i in $$list; do \
+           if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+         done | \
+         $(AWK) '    { files[$$0] = 1; } \
+              END { for (i in files) print i; }'`; \
+       mkid -fID $$unique
+
+TAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+               $(TAGS_FILES) $(LISP)
+       tags=; \
+       here=`pwd`; \
+       list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+       unique=`for i in $$list; do \
+           if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+         done | \
+         $(AWK) '    { files[$$0] = 1; } \
+              END { for (i in files) print i; }'`; \
+       test -z "$(ETAGS_ARGS)$$tags$$unique" \
+         || $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+            $$tags $$unique
+
+GTAGS:
+       here=`$(am__cd) $(top_builddir) && pwd` \
+         && cd $(top_srcdir) \
+         && gtags -i $(GTAGS_ARGS) $$here
+
+distclean-tags:
+       -rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+
+top_distdir = ..
+distdir = $(top_distdir)/$(PACKAGE)-$(VERSION)
+
+distdir: $(DISTFILES)
+       @list='$(DISTFILES)'; for file in $$list; do \
+         if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+         dir=`echo "$$file" | sed -e 's,/[^/]*$$,,'`; \
+         if test "$$dir" != "$$file" && test "$$dir" != "."; then \
+           dir="/$$dir"; \
+           $(mkinstalldirs) "$(distdir)$$dir"; \
+         else \
+           dir=''; \
+         fi; \
+         if test -d $$d/$$file; then \
+           if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+             cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+           fi; \
+           cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+         else \
+           test -f $(distdir)/$$file \
+           || cp -p $$d/$$file $(distdir)/$$file \
+           || exit 1; \
+         fi; \
+       done
+check-am: all-am
+check: check-am
+all-am: Makefile $(PROGRAMS)
+
+installdirs:
+       $(mkinstalldirs) $(DESTDIR)$(bindir) $(DESTDIR)$(sbindir)
+
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+       @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+       $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+         INSTALL_STRIP_FLAG=-s \
+         `test -z '$(STRIP)' || \
+           echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+       -rm -f Makefile $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+       @echo "This command is intended for maintainers to use"
+       @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-binPROGRAMS clean-generic clean-libtool \
+       clean-sbinPROGRAMS mostlyclean-am
+
+distclean: distclean-am
+
+distclean-am: clean-am distclean-compile distclean-depend \
+       distclean-generic distclean-libtool distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-exec-am: install-binPROGRAMS install-sbinPROGRAMS
+
+install-info: install-info-am
+
+install-man:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+       mostlyclean-libtool
+
+uninstall-am: uninstall-binPROGRAMS uninstall-info-am \
+       uninstall-sbinPROGRAMS
+
+.PHONY: GTAGS all all-am check check-am clean clean-binPROGRAMS \
+       clean-generic clean-libtool clean-sbinPROGRAMS distclean \
+       distclean-compile distclean-depend distclean-generic \
+       distclean-libtool distclean-tags distdir dvi dvi-am info \
+       info-am install install-am install-binPROGRAMS install-data \
+       install-data-am install-exec install-exec-am install-info \
+       install-info-am install-man install-sbinPROGRAMS install-strip \
+       installcheck installcheck-am installdirs maintainer-clean \
+       maintainer-clean-generic mostlyclean mostlyclean-compile \
+       mostlyclean-generic mostlyclean-libtool tags uninstall \
+       uninstall-am uninstall-binPROGRAMS uninstall-info-am \
+       uninstall-sbinPROGRAMS
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/src/arch-alpha.c b/src/arch-alpha.c
new file mode 100644 (file)
index 0000000..b326b0b
--- /dev/null
@@ -0,0 +1,505 @@
+/* Copyright (C) 2001, 2002, 2003, 2004, 2009 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <locale.h>
+#include <error.h>
+#include <argp.h>
+#include <stdlib.h>
+
+#include "prelink.h"
+
+static int
+alpha_adjust_dyn (DSO *dso, int n, GElf_Dyn *dyn, GElf_Addr start,
+                 GElf_Addr adjust)
+{
+  return 0;
+}
+
+static int
+alpha_adjust_rel (DSO *dso, GElf_Rel *rel, GElf_Addr start,
+                 GElf_Addr adjust)
+{
+  error (0, 0, "%s: Alpha doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+alpha_adjust_rela (DSO *dso, GElf_Rela *rela, GElf_Addr start,
+                  GElf_Addr adjust)
+{
+  if (GELF_R_TYPE (rela->r_info) == R_ALPHA_RELATIVE
+      || GELF_R_TYPE (rela->r_info) == R_ALPHA_JMP_SLOT)
+    {
+      GElf_Addr val = read_ule64 (dso, rela->r_offset);
+
+      if (val >= start)
+       {
+         write_le64 (dso, rela->r_offset, val + adjust);
+         if (val == rela->r_addend)
+           rela->r_addend += adjust;
+       }
+    }
+  else if (GELF_R_TYPE (rela->r_info) == R_ALPHA_GLOB_DAT)
+    {
+      GElf_Addr val = read_ule64 (dso, rela->r_offset) - rela->r_addend;
+
+      if (val && val >= start)
+       write_le64 (dso, rela->r_offset, val + adjust + rela->r_addend);
+    }
+  return 0;
+}
+
+static int
+alpha_prelink_rel (struct prelink_info *info, GElf_Rel *rel,
+                  GElf_Addr reladdr)
+{
+  error (0, 0, "%s: Alpha doesn't support REL relocs", info->dso->filename);
+  return 1;
+}
+
+static void
+alpha_fixup_plt (DSO *dso, GElf_Rela *rela, GElf_Addr relaaddr,
+                GElf_Addr value)
+{
+  Elf64_Sxword disp;
+  Elf64_Addr plt;
+
+  relaaddr -= dso->info[DT_JMPREL];
+  relaaddr /= sizeof (Elf64_Rela);
+  relaaddr *= 12;
+  plt = dso->info[DT_PLTGOT] + 32 + relaaddr;
+  disp = ((Elf64_Sxword) (value - plt - 12)) / 4;
+  if (disp >= -0x100000 && disp < 0x100000)
+    {
+      int32_t hi, lo;
+
+      hi = value - plt;
+      lo = (int16_t) hi;
+      hi = (hi - lo) >> 16;
+
+      /* ldah $27,hi($27)
+        lda $27,lo($27)
+        br $31,value  */
+      write_le32 (dso, plt, 0x277b0000 | (hi & 0xffff));
+      write_le32 (dso, plt + 4, 0x237b0000 | (lo & 0xffff));
+      write_le32 (dso, plt + 8, 0xc3e00000 | (disp & 0x1fffff));
+    }
+  else
+    {
+      int32_t hi, lo;
+
+      hi = rela->r_offset - plt;
+      lo = (int16_t) hi;
+      hi = (hi - lo) >> 16;
+
+      /* ldah $27,hi($27)
+        ldq $27,lo($27)
+        jmp $31,($27)  */
+      write_le32 (dso, plt, 0x277b0000 | (hi & 0xffff));
+      write_le32 (dso, plt + 4, 0xa77b0000 | (lo & 0xffff));
+      write_le32 (dso, plt + 8, 0x6bfb0000);
+    }
+}
+
+static int
+alpha_is_indirect_plt (DSO *dso, GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  Elf64_Addr pltaddr;
+  uint32_t plt[3];
+  int32_t hi, lo;
+
+  relaaddr -= dso->info[DT_JMPREL];
+  relaaddr /= sizeof (Elf64_Rela);
+  relaaddr *= 12;
+  pltaddr = dso->info[DT_PLTGOT] + 32 + relaaddr;
+  hi = rela->r_offset - pltaddr;
+  lo = (int16_t) hi;
+  hi = (hi - lo) >> 16;
+  plt[0] = read_ule32 (dso, pltaddr);
+  plt[1] = read_ule32 (dso, pltaddr + 4);
+  plt[2] = read_ule32 (dso, pltaddr + 8);
+  if (plt[0] == (0x277b0000 | (hi & 0xffff))
+      && plt[1] == (0xa77b0000 | (lo & 0xffff))
+      && plt[2] == 0x6bfb0000)
+    return 1;
+  return 0;
+}
+
+static int
+alpha_prelink_rela (struct prelink_info *info, GElf_Rela *rela,
+                   GElf_Addr relaaddr)
+{
+  DSO *dso;
+  GElf_Addr value;
+
+  if (GELF_R_TYPE (rela->r_info) == R_ALPHA_RELATIVE
+      || GELF_R_TYPE (rela->r_info) == R_ALPHA_NONE)
+    /* Fast path: nothing to do.  */
+    return 0;
+  dso = info->dso;
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  value += rela->r_addend;
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_ALPHA_GLOB_DAT:
+    case R_ALPHA_REFQUAD:
+    case R_ALPHA_DTPREL64:
+      write_le64 (dso, rela->r_offset, value);
+      break;
+    case R_ALPHA_JMP_SLOT:
+      write_le64 (dso, rela->r_offset, value);
+      alpha_fixup_plt (dso, rela, relaaddr, value);
+      break;
+    /* DTPMOD64 and TPREL64 is impossible to predict in shared libraries
+       unless prelink sets the rules.  */
+    case R_ALPHA_DTPMOD64:
+      if (dso->ehdr.e_type == ET_EXEC)
+       {
+         error (0, 0, "%s: R_ALPHA_DTPMOD64 reloc in executable?",
+                dso->filename);
+         return 1;
+       }
+      break;
+    case R_ALPHA_TPREL64:
+      if (dso->ehdr.e_type == ET_EXEC && info->resolvetls)
+       write_le64 (dso, rela->r_offset, value + info->resolvetls->offset);
+      break;
+    default:
+      error (0, 0, "%s: Unknown alpha relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+alpha_apply_conflict_rela (struct prelink_info *info, GElf_Rela *rela,
+                          char *buf, GElf_Addr dest_addr)
+{
+  switch (GELF_R_TYPE (rela->r_info) & 0xff)
+    {
+    case R_ALPHA_GLOB_DAT:
+    case R_ALPHA_REFQUAD:
+    case R_ALPHA_JMP_SLOT:
+      buf_write_le64 (buf, rela->r_addend);
+      break;
+    default:
+      abort ();
+    }
+  return 0;
+}
+
+static int
+alpha_apply_rel (struct prelink_info *info, GElf_Rel *rel, char *buf)
+{
+  error (0, 0, "%s: Alpha doesn't support REL relocs", info->dso->filename);
+  return 1;
+}
+
+static int
+alpha_apply_rela (struct prelink_info *info, GElf_Rela *rela, char *buf)
+{
+  GElf_Addr value;
+
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_ALPHA_NONE:
+      break;
+    case R_ALPHA_GLOB_DAT:
+    case R_ALPHA_REFQUAD:
+    case R_ALPHA_JMP_SLOT:
+      buf_write_le64 (buf, value + rela->r_addend);
+      break;
+    case R_ALPHA_RELATIVE:
+      error (0, 0, "%s: R_ALPHA_RELATIVE in ET_EXEC object?", info->dso->filename);
+      return 1;
+    default:
+      return 1;
+    }
+  return 0;
+}
+
+static int
+alpha_prelink_conflict_rel (DSO *dso, struct prelink_info *info,
+                           GElf_Rel *rel, GElf_Addr reladdr)
+{
+  error (0, 0, "%s: Alpha doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+alpha_prelink_conflict_rela (DSO *dso, struct prelink_info *info,
+                            GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  GElf_Addr value;
+  struct prelink_conflict *conflict;
+  struct prelink_tls *tls;
+  GElf_Rela *ret;
+
+  if (GELF_R_TYPE (rela->r_info) == R_ALPHA_RELATIVE
+      || GELF_R_TYPE (rela->r_info) == R_ALPHA_NONE
+      || info->dso == dso)
+    /* Fast path: nothing to do.  */
+    return 0;
+  conflict = prelink_conflict (info, GELF_R_SYM (rela->r_info),
+                              GELF_R_TYPE (rela->r_info));
+  if (conflict == NULL)
+    {
+      if (info->curtls == NULL)
+       return 0;
+      switch (GELF_R_TYPE (rela->r_info))
+       {
+       /* Even local DTPMOD64 and TPREL64 relocs need conflicts.  */
+       case R_ALPHA_DTPMOD64:
+       case R_ALPHA_TPREL64:
+         break;
+       default:
+         return 0;
+       }
+      value = 0;
+    }
+  else if (conflict->ifunc)
+    {
+      error (0, 0, "%s: STT_GNU_IFUNC not handled on Alpha yet",
+            dso->filename);
+      return 1;
+    }
+  else
+    {
+      /* DTPREL64 wants to see only real conflicts, not lookups
+        with reloc_class RTYPE_CLASS_TLS.  */
+      if (GELF_R_TYPE (rela->r_info) == R_ALPHA_DTPREL64
+         && conflict->lookup.tls == conflict->conflict.tls
+         && conflict->lookupval == conflict->conflictval)
+       return 0;
+
+      value = conflict_lookup_value (conflict);
+    }
+  ret = prelink_conflict_add_rela (info);
+  if (ret == NULL)
+    return 1;
+  ret->r_offset = rela->r_offset;
+  ret->r_info = GELF_R_INFO (0, GELF_R_TYPE (rela->r_info));
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_ALPHA_GLOB_DAT:
+    case R_ALPHA_REFQUAD:
+      ret->r_addend = value + rela->r_addend;
+      break;
+    case R_ALPHA_JMP_SLOT:
+      ret->r_addend = value + rela->r_addend;
+      if (alpha_is_indirect_plt (dso, rela, relaaddr))
+       ret->r_info = GELF_R_INFO (0, R_ALPHA_GLOB_DAT);
+      else
+       {
+         relaaddr -= dso->info[DT_JMPREL];
+         relaaddr /= sizeof (Elf64_Rela);
+         if (relaaddr > 0xffffff)
+           {
+             error (0, 0, "%s: Cannot create R_ALPHA_JMP_SLOT conflict against .rel.plt with more than 16M entries",
+                    dso->filename);
+             return 1;
+           }
+         ret->r_info = GELF_R_INFO (0, (relaaddr << 8) | R_ALPHA_JMP_SLOT);
+       }
+      break;
+    case R_ALPHA_DTPMOD64:
+    case R_ALPHA_DTPREL64:
+    case R_ALPHA_TPREL64:
+      if (conflict != NULL
+         && (conflict->reloc_class != RTYPE_CLASS_TLS
+             || conflict->lookup.tls == NULL))
+       {
+         error (0, 0, "%s: TLS reloc not resolving to STT_TLS symbol",
+                dso->filename);
+         return 1;
+       }
+      tls = conflict ? conflict->lookup.tls : info->curtls;
+      ret->r_info = GELF_R_INFO (0, R_ALPHA_GLOB_DAT);
+      switch (GELF_R_TYPE (rela->r_info))
+       {
+       case R_ALPHA_DTPMOD64:
+         ret->r_addend = tls->modid;
+         break;
+       case R_ALPHA_DTPREL64:
+         ret->r_addend = value + rela->r_addend;
+         break;
+       case R_ALPHA_TPREL64:
+         ret->r_addend = value + rela->r_addend + tls->offset;
+         break;
+       }
+      break;
+    default:
+      error (0, 0, "%s: Unknown Alpha relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+alpha_rel_to_rela (DSO *dso, GElf_Rel *rel, GElf_Rela *rela)
+{
+  error (0, 0, "%s: Alpha doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+alpha_need_rel_to_rela (DSO *dso, int first, int last)
+{
+  return 0;
+}
+
+static int
+alpha_arch_prelink (struct prelink_info *info)
+{
+  DSO *dso;
+
+  /* Correct sh_entsize on .plt sections.  */
+  dso = info->dso;
+  if (dso->info[DT_PLTGOT])
+    {
+      int sec = addr_to_sec (dso, dso->info[DT_PLTGOT] + 16);
+      assert (sec != -1);
+      if (dso->shdr[sec].sh_type == SHT_PROGBITS
+         && dso->shdr[sec].sh_entsize == 32)
+       dso->shdr[sec].sh_entsize = 0;
+    }
+  return 0;
+}
+
+static int
+alpha_undo_prelink_rela (DSO *dso, GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  int sec;
+  Elf_Scn *scn;
+  Elf_Data *data;
+  GElf_Sym sym;
+
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_ALPHA_NONE:
+    case R_ALPHA_RELATIVE:
+      break;
+    case R_ALPHA_JMP_SLOT:
+      relaaddr -= dso->info[DT_JMPREL];
+      relaaddr /= sizeof (Elf64_Rela);
+      relaaddr *= 12;
+      relaaddr += dso->info[DT_PLTGOT] + 32;
+      /* br at,.plt  */
+      write_le32 (dso, relaaddr,
+                 0xc39fffff - (relaaddr - dso->info[DT_PLTGOT]) / 4);
+      write_le64 (dso, relaaddr + 4, 0);
+      write_le64 (dso, rela->r_offset, relaaddr);
+      break;
+    case R_ALPHA_GLOB_DAT:
+      /* This is ugly.  Linker doesn't clear memory at r_offset of GLOB_DAT
+        reloc, but instead puts in sym.st_value + addend.  */
+      sec = addr_to_sec (dso, relaaddr);
+      assert (sec != -1);
+      sec = dso->shdr[sec].sh_link;
+      assert (sec > 0 && sec < dso->ehdr.e_shnum);
+      scn = dso->scn[sec];
+      data = elf_getdata (scn, NULL);
+      assert (data != NULL && elf_getdata (scn, data) == NULL);
+      assert (GELF_R_SYM (rela->r_info)
+             <= dso->shdr[sec].sh_size / sizeof (Elf64_Sym));
+      gelfx_getsym (dso->elf, data, GELF_R_SYM (rela->r_info), &sym);
+      write_le64 (dso, rela->r_offset, sym.st_value + rela->r_addend);
+      break;
+    case R_ALPHA_REFQUAD:
+    case R_ALPHA_DTPMOD64:
+    case R_ALPHA_DTPREL64:
+    case R_ALPHA_TPREL64:
+      write_le64 (dso, rela->r_offset, 0);
+      break;
+    default:
+      error (0, 0, "%s: Unknown alpha relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+alpha_reloc_size (int reloc_type)
+{
+  return 8;
+}
+
+static int
+alpha_reloc_class (int reloc_type)
+{
+  switch (reloc_type)
+    {
+    case R_ALPHA_JMP_SLOT:
+      return RTYPE_CLASS_PLT;
+    case R_ALPHA_DTPMOD64:
+    case R_ALPHA_DTPREL64:
+    case R_ALPHA_TPREL64:
+      return RTYPE_CLASS_TLS;
+    default:
+      return RTYPE_CLASS_VALID;
+    }
+}
+
+PL_ARCH = {
+  .name = "Alpha",
+  .class = ELFCLASS64,
+  .machine = EM_ALPHA,
+  .alternate_machine = { EM_FAKE_ALPHA },
+  .R_JMP_SLOT = R_ALPHA_JMP_SLOT,
+  .R_COPY = -1,
+  .R_RELATIVE = R_ALPHA_RELATIVE,
+  .rtype_class_valid = RTYPE_CLASS_VALID,
+  .dynamic_linker = "/lib/ld-linux.so.2",
+  .adjust_dyn = alpha_adjust_dyn,
+  .adjust_rel = alpha_adjust_rel,
+  .adjust_rela = alpha_adjust_rela,
+  .prelink_rel = alpha_prelink_rel,
+  .prelink_rela = alpha_prelink_rela,
+  .prelink_conflict_rel = alpha_prelink_conflict_rel,
+  .prelink_conflict_rela = alpha_prelink_conflict_rela,
+  .apply_conflict_rela = alpha_apply_conflict_rela,
+  .apply_rel = alpha_apply_rel,
+  .apply_rela = alpha_apply_rela,
+  .rel_to_rela = alpha_rel_to_rela,
+  .need_rel_to_rela = alpha_need_rel_to_rela,
+  .reloc_size = alpha_reloc_size,
+  .reloc_class = alpha_reloc_class,
+  .max_reloc_size = 8,
+  .arch_prelink = alpha_arch_prelink,
+  .undo_prelink_rela = alpha_undo_prelink_rela,
+  /* Although TASK_UNMAPPED_BASE is 0x0000020000000000, we leave some
+     area so that mmap of /etc/ld.so.cache and ld.so's malloc
+     does not take some library's VA slot.
+     Also, if this guard area isn't too small, typically
+     even dlopened libraries will get the slots they desire.  */
+  .mmap_base = 0x0000020001000000LL,
+  .mmap_end =  0x0000020100000000LL,
+  .max_page_size = 0x10000,
+  .page_size = 0x02000
+};
diff --git a/src/arch-arm.c b/src/arch-arm.c
new file mode 100644 (file)
index 0000000..47fde9b
--- /dev/null
@@ -0,0 +1,864 @@
+/* Copyright (C) 2001, 2002, 2004, 2009 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <locale.h>
+#include <error.h>
+#include <argp.h>
+#include <stdlib.h>
+
+#include "prelink.h"
+
+static int
+arm_adjust_dyn (DSO *dso, int n, GElf_Dyn *dyn, GElf_Addr start,
+               GElf_Addr adjust)
+{
+  if (dyn->d_tag == DT_PLTGOT)
+    {
+      int sec = addr_to_sec (dso, dyn->d_un.d_ptr);
+      Elf32_Addr data;
+
+      if (sec == -1)
+       return 0;
+
+      data = read_une32 (dso, dyn->d_un.d_ptr);
+      /* If .got.plt[0] points to _DYNAMIC, it needs to be adjusted.  */
+      if (data == dso->shdr[n].sh_addr && data >= start)
+       write_ne32 (dso, dyn->d_un.d_ptr, data + adjust);
+
+      data = read_une32 (dso, dyn->d_un.d_ptr + 4);
+      /* If .got.plt[1] points to .plt, it needs to be adjusted.  */
+      if (data && data >= start)
+       {
+         int i;
+
+         for (i = 1; i < dso->ehdr.e_shnum; i++)
+           if (data == dso->shdr[i].sh_addr
+               && dso->shdr[i].sh_type == SHT_PROGBITS
+               && strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                  dso->shdr[i].sh_name), ".plt") == 0)
+             {
+               write_ne32 (dso, dyn->d_un.d_ptr + 4, data + adjust);
+               break;
+             }
+       }
+    }
+  return 0;
+}
+
+static int
+arm_adjust_rel (DSO *dso, GElf_Rel *rel, GElf_Addr start,
+               GElf_Addr adjust)
+{
+  Elf32_Addr data;
+  switch (GELF_R_TYPE (rel->r_info))
+    {
+    case R_ARM_RELATIVE:
+    case R_ARM_JUMP_SLOT:
+      data = read_une32 (dso, rel->r_offset);
+      if (data >= start)
+       write_ne32 (dso, rel->r_offset, data + adjust);
+      break;
+    }
+  return 0;
+}
+
+static int
+arm_adjust_rela (DSO *dso, GElf_Rela *rela, GElf_Addr start,
+                GElf_Addr adjust)
+{
+  Elf32_Addr data;
+
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_ARM_RELATIVE:
+      if ((Elf32_Addr) rela->r_addend >= start)
+       {
+         rela->r_addend += (Elf32_Sword) adjust;
+         /* Write it to the memory location as well.
+            Not necessary, but we can do it.  */
+         write_ne32 (dso, rela->r_offset, rela->r_addend);
+       }
+      break;
+    case R_ARM_JUMP_SLOT:
+      data = read_une32 (dso, rela->r_offset);
+      if (data >= start)
+       write_ne32 (dso, rela->r_offset, data + adjust);
+      break;
+      break;
+    }
+  return 0;
+}
+
+static int
+arm_prelink_rel (struct prelink_info *info, GElf_Rel *rel, GElf_Addr reladdr)
+{
+  DSO *dso;
+  GElf_Addr value;
+
+  if (GELF_R_TYPE (rel->r_info) == R_ARM_RELATIVE
+      || GELF_R_TYPE (rel->r_info) == R_ARM_NONE)
+    /* Fast path: nothing to do.  */
+    return 0;
+  dso = info->dso;
+  value = info->resolve (info, GELF_R_SYM (rel->r_info),
+                        GELF_R_TYPE (rel->r_info));
+  switch (GELF_R_TYPE (rel->r_info))
+    {
+    case R_ARM_GLOB_DAT:
+    case R_ARM_JUMP_SLOT:
+      write_ne32 (dso, rel->r_offset, value);
+      break;
+    case R_ARM_ABS32:
+      {
+       if (read_une32 (dso, rel->r_offset))
+         {
+           error (0, 0, "%s: R_ARM_ABS32 relocs with non-zero addend should not be present in prelinked REL sections",
+                  dso->filename);
+           return 1;
+         }
+       rel->r_info = GELF_R_INFO (GELF_R_SYM (rel->r_info), R_ARM_GLOB_DAT);
+       write_ne32 (dso, rel->r_offset, value);
+       /* Tell prelink_rel routine *rel has changed.  */
+       return 2;
+      }
+    case R_ARM_PC24:
+      error (0, 0, "%s: R_ARM_PC24 relocs with non-zero addend should not be present in prelinked REL sections",
+            dso->filename);
+      return 1;
+    case R_ARM_COPY:
+      if (dso->ehdr.e_type == ET_EXEC)
+       /* COPY relocs are handled specially in generic code.  */
+       return 0;
+      error (0, 0, "%s: R_ARM_COPY reloc in shared library?", dso->filename);
+      return 1;
+    case R_ARM_TLS_DTPOFF32:
+      write_ne32 (dso, rel->r_offset, value);
+      break;
+    /* DTPMOD32 and TPOFF32 is impossible to predict in shared libraries
+       unless prelink sets the rules.  */
+    case R_ARM_TLS_DTPMOD32:
+      if (dso->ehdr.e_type == ET_EXEC)
+        {
+          error (0, 0, "%s: R_ARM_TLS_DTPMOD32 reloc in executable?",
+                 dso->filename);
+          return 1;
+        }
+      break;
+    case R_ARM_TLS_TPOFF32:
+      if (dso->ehdr.e_type == ET_EXEC)
+       error (0, 0, "%s: R_ARM_TLS_TPOFF32 relocs should not be present in "
+              "prelinked ET_EXEC REL sections",
+              dso->filename);
+      break;
+    default:
+      error (0, 0, "%s: Unknown arm relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rel->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+arm_prelink_rela (struct prelink_info *info, GElf_Rela *rela,
+                 GElf_Addr relaaddr)
+{
+  DSO *dso;
+  GElf_Addr value;
+  Elf32_Sword val;
+
+  if (GELF_R_TYPE (rela->r_info) == R_ARM_RELATIVE
+      || GELF_R_TYPE (rela->r_info) == R_ARM_NONE)
+    /* Fast path: nothing to do.  */
+    return 0;
+  dso = info->dso;
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_ARM_GLOB_DAT:
+    case R_ARM_JUMP_SLOT:
+      write_ne32 (dso, rela->r_offset, value + rela->r_addend);
+      break;
+    case R_ARM_ABS32:
+      write_ne32 (dso, rela->r_offset, value + rela->r_addend);
+      break;
+    case R_ARM_PC24:
+      val = value + rela->r_addend - rela->r_offset;
+      val >>= 2;
+      if ((Elf32_Word) val + 0x800000 >= 0x1000000)
+       {
+         error (0, 0, "%s: R_ARM_PC24 overflow", dso->filename);
+         return 1;
+       }
+      val &= 0xffffff;
+      write_ne32 (dso, rela->r_offset,
+                 (read_une32 (dso, rela->r_offset) & 0xff000000) | val);
+      break;
+    case R_ARM_COPY:
+      if (dso->ehdr.e_type == ET_EXEC)
+       /* COPY relocs are handled specially in generic code.  */
+       return 0;
+      error (0, 0, "%s: R_ARM_COPY reloc in shared library?", dso->filename);
+      return 1;
+    case R_ARM_TLS_DTPOFF32:
+      write_ne32 (dso, rela->r_offset, value + rela->r_addend);
+      break;
+    /* DTPMOD32 and TPOFF32 is impossible to predict in shared libraries
+       unless prelink sets the rules.  */
+    case R_ARM_TLS_DTPMOD32:
+      if (dso->ehdr.e_type == ET_EXEC)
+        {
+          error (0, 0, "%s: R_ARM_TLS_DTPMOD32 reloc in executable?",
+                 dso->filename);
+          return 1;
+        }
+      break;
+    case R_ARM_TLS_TPOFF32:
+      if (dso->ehdr.e_type == ET_EXEC && info->resolvetls)
+        write_ne32 (dso, rela->r_offset,
+                    value + rela->r_addend + info->resolvetls->offset);
+      break;
+    default:
+      error (0, 0, "%s: Unknown arm relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+arm_apply_conflict_rela (struct prelink_info *info, GElf_Rela *rela,
+                        char *buf, GElf_Addr dest_addr)
+{
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_ARM_GLOB_DAT:
+    case R_ARM_JUMP_SLOT:
+    case R_ARM_ABS32:
+      buf_write_ne32 (info->dso, buf, rela->r_addend);
+      break;
+    default:
+      abort ();
+    }
+  return 0;
+}
+
+static int
+arm_apply_rel (struct prelink_info *info, GElf_Rel *rel, char *buf)
+{
+  GElf_Addr value;
+  Elf32_Sword val;
+
+  value = info->resolve (info, GELF_R_SYM (rel->r_info),
+                        GELF_R_TYPE (rel->r_info));
+  switch (GELF_R_TYPE (rel->r_info))
+    {
+    case R_ARM_NONE:
+      break;
+    case R_ARM_GLOB_DAT:
+    case R_ARM_JUMP_SLOT:
+      buf_write_ne32 (info->dso, buf, value);
+      break;
+    case R_ARM_ABS32:
+      buf_write_ne32 (info->dso, buf, value + read_une32 (info->dso, rel->r_offset));
+      break;
+    case R_ARM_PC24:
+      val = value + rel->r_offset;
+      value = read_une32 (info->dso, rel->r_offset) << 8;
+      value = ((Elf32_Sword) value) >> 6;
+      val += value;
+      val >>= 2;
+      if ((Elf32_Word) val + 0x800000 >= 0x1000000)
+       {
+         error (0, 0, "%s: R_ARM_PC24 overflow", info->dso->filename);
+         return 1;
+       }
+      val &= 0xffffff;
+      buf_write_ne32 (info->dso, buf, (buf_read_une32 (info->dso, buf) & 0xff000000) | val);
+      break;
+    case R_ARM_COPY:
+      abort ();
+    case R_ARM_RELATIVE:
+      error (0, 0, "%s: R_ARM_RELATIVE in ET_EXEC object?", info->dso->filename);
+      return 1;
+    default:
+      return 1;
+    }
+  return 0;
+}
+
+static int
+arm_apply_rela (struct prelink_info *info, GElf_Rela *rela, char *buf)
+{
+  GElf_Addr value;
+  Elf32_Sword val;
+
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_ARM_NONE:
+      break;
+    case R_ARM_GLOB_DAT:
+    case R_ARM_JUMP_SLOT:
+    case R_ARM_ABS32:
+      buf_write_ne32 (info->dso, buf, value + rela->r_addend);
+      break;
+    case R_ARM_PC24:
+      val = value + rela->r_addend - rela->r_offset;
+      val >>= 2;
+      if ((Elf32_Word) val + 0x800000 >= 0x1000000)
+       {
+         error (0, 0, "%s: R_ARM_PC24 overflow", info->dso->filename);
+         return 1;
+       }
+      val &= 0xffffff;
+      buf_write_ne32 (info->dso, buf, (buf_read_une32 (info->dso, buf) & 0xff000000) | val);
+      break;
+    case R_ARM_COPY:
+      abort ();
+    case R_ARM_RELATIVE:
+      error (0, 0, "%s: R_ARM_RELATIVE in ET_EXEC object?", info->dso->filename);
+      return 1;
+    default:
+      return 1;
+    }
+  return 0;
+}
+
+static int
+arm_prelink_conflict_rel (DSO *dso, struct prelink_info *info, GElf_Rel *rel,
+                         GElf_Addr reladdr)
+{
+  GElf_Addr value;
+  struct prelink_conflict *conflict;
+  struct prelink_tls *tls;
+  GElf_Rela *ret;
+
+  if (GELF_R_TYPE (rel->r_info) == R_ARM_RELATIVE
+      || GELF_R_TYPE (rel->r_info) == R_ARM_NONE
+      || info->dso == dso)
+    /* Fast path: nothing to do.  */
+    return 0;
+  conflict = prelink_conflict (info, GELF_R_SYM (rel->r_info),
+                              GELF_R_TYPE (rel->r_info));
+  if (conflict == NULL)
+    {
+      if (info->curtls == NULL)
+       return 0;
+
+      switch (GELF_R_TYPE (rel->r_info))
+       {
+       /* Even local DTPMOD and TPOFF relocs need conflicts.  */
+       case R_ARM_TLS_DTPMOD32:
+       case R_ARM_TLS_TPOFF32:
+         break;
+
+       default:
+         return 0;
+       }
+      value = 0;
+    }
+  else if (conflict->ifunc)
+    {
+      error (0, 0, "%s: STT_GNU_IFUNC not handled on ARM yet",
+            dso->filename);
+      return 1;
+    }
+  else
+    {
+      /* DTPOFF32 wants to see only real conflicts, not lookups
+        with reloc_class RTYPE_CLASS_TLS.  */
+      if (GELF_R_TYPE (rel->r_info) == R_ARM_TLS_DTPOFF32
+         && conflict->lookup.tls == conflict->conflict.tls
+         && conflict->lookupval == conflict->conflictval)
+        return 0;
+
+      value = conflict_lookup_value (conflict);
+    }
+
+  ret = prelink_conflict_add_rela (info);
+  if (ret == NULL)
+    return 1;
+  ret->r_offset = rel->r_offset;
+  ret->r_info = GELF_R_INFO (0, GELF_R_TYPE (rel->r_info));
+  switch (GELF_R_TYPE (rel->r_info))
+    {
+    case R_ARM_GLOB_DAT:
+    case R_ARM_JUMP_SLOT:
+      ret->r_addend = (Elf32_Sword) value;
+      break;
+    case R_ARM_ABS32:
+    case R_ARM_PC24:
+      error (0, 0, "%s: R_ARM_%s relocs should not be present in prelinked REL sections",
+            dso->filename, GELF_R_TYPE (rel->r_info) == R_ARM_ABS32 ? "ABS32" : "PC24");
+      return 1;
+    case R_ARM_COPY:
+      error (0, 0, "R_ARM_COPY should not be present in shared libraries");
+      return 1;
+    case R_ARM_TLS_DTPMOD32:
+    case R_ARM_TLS_DTPOFF32:
+    case R_ARM_TLS_TPOFF32:
+      if (conflict != NULL
+         && (conflict->reloc_class != RTYPE_CLASS_TLS
+             || conflict->lookup.tls == NULL))
+       {
+         error (0, 0, "%s: TLS reloc not resolving to STT_TLS symbol",
+                dso->filename);
+         return 1;
+       }
+      tls = conflict ? conflict->lookup.tls : info->curtls;
+      ret->r_info = GELF_R_INFO (0, R_ARM_ABS32);
+      switch (GELF_R_TYPE (rel->r_info))
+       {
+       case R_ARM_TLS_DTPMOD32:
+         ret->r_addend = tls->modid;
+         break;
+       case R_ARM_TLS_DTPOFF32:
+         ret->r_addend = value;
+         break;
+       case R_ARM_TLS_TPOFF32:
+         ret->r_addend = (value + read_une32 (dso, rel->r_offset)
+                          + tls->offset);
+         break;
+       }
+      break;
+    default:
+      error (0, 0, "%s: Unknown arm relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rel->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+arm_prelink_conflict_rela (DSO *dso, struct prelink_info *info,
+                          GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  GElf_Addr value;
+  struct prelink_conflict *conflict;
+  struct prelink_tls *tls;
+  GElf_Rela *ret;
+  Elf32_Sword val;
+
+  if (GELF_R_TYPE (rela->r_info) == R_ARM_RELATIVE
+      || GELF_R_TYPE (rela->r_info) == R_ARM_NONE
+      || info->dso == dso)
+    /* Fast path: nothing to do.  */
+    return 0;
+  conflict = prelink_conflict (info, GELF_R_SYM (rela->r_info),
+                              GELF_R_TYPE (rela->r_info));
+
+  if (conflict == NULL)
+    {
+      if (info->curtls == NULL)
+       return 0;
+
+      switch (GELF_R_TYPE (rela->r_info))
+       {
+       /* Even local DTPMOD and TPOFF relocs need conflicts.  */
+       case R_ARM_TLS_DTPMOD32:
+       case R_ARM_TLS_TPOFF32:
+         break;
+
+       default:
+         return 0;
+       }
+      value = 0;
+    }
+  else if (conflict->ifunc)
+    {
+      error (0, 0, "%s: STT_GNU_IFUNC not handled on ARM yet",
+            dso->filename);
+      return 1;
+    }
+  else
+    {
+      /* DTPOFF32 wants to see only real conflicts, not lookups
+        with reloc_class RTYPE_CLASS_TLS.  */
+      if (GELF_R_TYPE (rela->r_info) == R_ARM_TLS_DTPOFF32
+         && conflict->lookup.tls == conflict->conflict.tls
+         && conflict->lookupval == conflict->conflictval)
+        return 0;
+
+      value = conflict_lookup_value (conflict);
+    }
+
+  ret = prelink_conflict_add_rela (info);
+  if (ret == NULL)
+    return 1;
+  ret->r_offset = rela->r_offset;
+  ret->r_info = GELF_R_INFO (0, GELF_R_TYPE (rela->r_info));
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_ARM_GLOB_DAT:
+    case R_ARM_JUMP_SLOT:
+    case R_ARM_ABS32:
+      ret->r_addend = (Elf32_Sword) (value + rela->r_addend);
+      break;
+    case R_ARM_PC24:
+      val = value + rela->r_addend - rela->r_offset;
+      val >>= 2;
+      if ((Elf32_Word) val + 0x800000 >= 0x1000000)
+       {
+         error (0, 0, "%s: R_ARM_PC24 overflow", dso->filename);
+         return 1;
+       }
+      value = read_une32 (dso, rela->r_offset) & 0xff000000;
+      ret->r_addend = (Elf32_Sword) (value | (val & 0xffffff));
+      ret->r_info = GELF_R_INFO (0, R_ARM_ABS32);
+      break;
+    case R_ARM_COPY:
+      error (0, 0, "R_ARM_COPY should not be present in shared libraries");
+      return 1;
+    case R_ARM_TLS_DTPMOD32:
+    case R_ARM_TLS_DTPOFF32:
+    case R_ARM_TLS_TPOFF32:
+      if (conflict != NULL
+         && (conflict->reloc_class != RTYPE_CLASS_TLS
+             || conflict->lookup.tls == NULL))
+       {
+         error (0, 0, "%s: TLS reloc not resolving to STT_TLS symbol",
+                dso->filename);
+         return 1;
+       }
+      tls = conflict ? conflict->lookup.tls : info->curtls;
+      ret->r_info = GELF_R_INFO (0, R_ARM_ABS32);
+      switch (GELF_R_TYPE (rela->r_info))
+       {
+       case R_ARM_TLS_DTPMOD32:
+         ret->r_addend = tls->modid;
+         break;
+       case R_ARM_TLS_DTPOFF32:
+         ret->r_addend = value;
+         break;
+       case R_ARM_TLS_TPOFF32:
+         ret->r_addend = value + rela->r_addend + tls->offset;
+         break;
+       }
+      break;
+    default:
+      error (0, 0, "%s: Unknown arm relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+arm_rel_to_rela (DSO *dso, GElf_Rel *rel, GElf_Rela *rela)
+{
+  rela->r_offset = rel->r_offset;
+  rela->r_info = rel->r_info;
+  switch (GELF_R_TYPE (rel->r_info))
+    {
+    case R_ARM_JUMP_SLOT:
+      /* We should be never converting .rel.plt into .rela.plt.  */
+      abort ();
+    case R_ARM_RELATIVE:
+    case R_ARM_ABS32:
+    case R_ARM_TLS_TPOFF32:
+      rela->r_addend = (Elf32_Sword) read_une32 (dso, rel->r_offset);
+      break;
+    case R_ARM_PC24:
+      rela->r_addend = read_une32 (dso, rel->r_offset) << 8;
+      rela->r_addend = ((Elf32_Sword) rela->r_addend) >> 6;
+      break;
+    case R_ARM_COPY:
+    case R_ARM_GLOB_DAT:
+    case R_ARM_TLS_DTPMOD32:
+    case R_ARM_TLS_DTPOFF32:
+      rela->r_addend = 0;
+      break;
+    }
+  return 0;
+}
+
+static int
+arm_rela_to_rel (DSO *dso, GElf_Rela *rela, GElf_Rel *rel)
+{
+  rel->r_offset = rela->r_offset;
+  rel->r_info = rela->r_info;
+  switch (GELF_R_TYPE (rel->r_info))
+    {
+    case R_ARM_JUMP_SLOT:
+      /* We should be never converting .rel.plt into .rela.plt
+        and thus never .rela.plt back to .rel.plt.  */
+      abort ();
+    case R_ARM_RELATIVE:
+    case R_ARM_ABS32:
+    case R_ARM_TLS_TPOFF32:
+      write_ne32 (dso, rela->r_offset, rela->r_addend);
+      break;
+    case R_ARM_PC24:
+      write_ne32 (dso, rela->r_offset,
+                 (read_une32 (dso, rela->r_offset) & 0xff000000)
+                 | ((rela->r_addend >> 2) & 0xffffff));
+      break;
+    case R_ARM_GLOB_DAT:
+    case R_ARM_TLS_DTPMOD32:
+    case R_ARM_TLS_DTPOFF32:
+      write_ne32 (dso, rela->r_offset, 0);
+      break;
+    }
+  return 0;
+}
+
+static int
+arm_need_rel_to_rela (DSO *dso, int first, int last)
+{
+  Elf_Data *data;
+  Elf_Scn *scn;
+  Elf32_Rel *rel, *relend;
+  unsigned int val;
+
+  while (first <= last)
+    {
+      data = NULL;
+      scn = dso->scn[first++];
+      while ((data = elf_getdata (scn, data)) != NULL)
+       {
+         rel = (Elf32_Rel *) data->d_buf;
+         relend = rel + data->d_size / sizeof (Elf32_Rel);
+         for (; rel < relend; rel++)
+           switch (ELF32_R_TYPE (rel->r_info))
+             {
+             case R_ARM_ABS32:
+               val = read_une32 (dso, rel->r_offset);
+               /* R_ARM_ABS32 with addend 0 can be converted
+                  to R_ARM_GLOB_DAT and we don't have to convert
+                  to RELA because of that.  */
+               if (val == 0)
+                 break;
+               /* FALLTHROUGH */
+             case R_ARM_PC24:
+               return 1;
+             case R_ARM_TLS_TPOFF32:
+               /* In shared libraries TPOFF is changed always into
+                  conflicts, for executables we need to preserve
+                  original addend.  */
+               if (dso->ehdr.e_type == ET_EXEC)
+                 return 1;
+
+               break;
+             }
+       }
+    }
+  return 0;
+}
+
+static int
+arm_arch_prelink (struct prelink_info *info)
+{
+  DSO *dso;
+  int i;
+
+  dso = info->dso;
+  if (dso->info[DT_PLTGOT])
+    {
+      /* Write address of .plt into got[1].
+        .plt is what got[3] contains unless prelinking.  */
+      int sec = addr_to_sec (dso, dso->info[DT_PLTGOT]);
+      Elf32_Addr data;
+
+      if (sec == -1)
+       return 1;
+
+      for (i = 1; i < dso->ehdr.e_shnum; i++)
+       if (dso->shdr[i].sh_type == SHT_PROGBITS
+           && ! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                dso->shdr[i].sh_name),
+                        ".plt"))
+       break;
+
+      if (i == dso->ehdr.e_shnum)
+       return 0;
+      data = dso->shdr[i].sh_addr;
+      write_ne32 (dso, dso->info[DT_PLTGOT] + 4, data);
+    }
+
+  return 0;
+}
+
+static int
+arm_arch_undo_prelink (DSO *dso)
+{
+  int i;
+
+  if (dso->info[DT_PLTGOT])
+    {
+      /* Clear got[1] if it contains address of .plt.  */
+      int sec = addr_to_sec (dso, dso->info[DT_PLTGOT]);
+      Elf32_Addr data;
+
+      if (sec == -1)
+       return 1;
+
+      for (i = 1; i < dso->ehdr.e_shnum; i++)
+       if (dso->shdr[i].sh_type == SHT_PROGBITS
+           && ! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                dso->shdr[i].sh_name),
+                        ".plt"))
+       break;
+
+      if (i == dso->ehdr.e_shnum)
+       return 0;
+      data = read_une32 (dso, dso->info[DT_PLTGOT] + 4);
+      if (data == dso->shdr[i].sh_addr)
+       write_ne32 (dso, dso->info[DT_PLTGOT] + 4, 0);
+    }
+
+  return 0;
+}
+
+static int
+arm_undo_prelink_rel (DSO *dso, GElf_Rel *rel, GElf_Addr reladdr)
+{
+  int sec;
+  const char *name;
+
+  switch (GELF_R_TYPE (rel->r_info))
+    {
+    case R_ARM_RELATIVE:
+    case R_ARM_NONE:
+      break;
+    case R_ARM_JUMP_SLOT:
+      sec = addr_to_sec (dso, rel->r_offset);
+      name = strptr (dso, dso->ehdr.e_shstrndx, dso->shdr[sec].sh_name);
+      if (sec == -1 || (strcmp (name, ".got") && strcmp (name, ".got.plt")))
+       {
+         error (0, 0, "%s: R_ARM_JMP_SLOT not pointing into .got section",
+                dso->filename);
+         return 1;
+       }
+      else
+       {
+         Elf32_Addr data = read_une32 (dso, dso->shdr[sec].sh_addr + 4);
+
+         assert (rel->r_offset >= dso->shdr[sec].sh_addr + 12);
+         assert (((rel->r_offset - dso->shdr[sec].sh_addr) & 3) == 0);
+         write_ne32 (dso, rel->r_offset, data);
+       }
+      break;
+    case R_ARM_GLOB_DAT:
+      sec = addr_to_sec (dso, rel->r_offset);
+
+      write_ne32 (dso, rel->r_offset, 0);
+      if (sec != -1)
+       {
+         if (strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                             dso->shdr[sec].sh_name),
+                     ".got"))
+           {
+             rel->r_info = GELF_R_INFO (GELF_R_SYM (rel->r_info), R_ARM_ABS32);
+             return 2;
+           }
+       }
+      break;
+    case R_ARM_ABS32:
+    case R_ARM_PC24:
+      error (0, 0, "%s: R_ARM_%s relocs should not be present in prelinked REL sections",
+            GELF_R_TYPE (rel->r_info) == R_ARM_ABS32 ? "ABS32" : "PC24",
+            dso->filename);
+      return 1;
+    case R_ARM_COPY:
+      if (dso->ehdr.e_type == ET_EXEC)
+       /* COPY relocs are handled specially in generic code.  */
+       return 0;
+      error (0, 0, "%s: R_ARM_COPY reloc in shared library?", dso->filename);
+      return 1;
+    case R_ARM_TLS_DTPMOD32:
+    case R_ARM_TLS_DTPOFF32:
+      write_ne32 (dso, rel->r_offset, 0);
+      break;
+    case R_ARM_TLS_TPOFF32:
+      break;
+    default:
+      error (0, 0, "%s: Unknown arm relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rel->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+arm_reloc_size (int reloc_type)
+{
+  assert (reloc_type != R_ARM_COPY);
+  return 4;
+}
+
+static int
+arm_reloc_class (int reloc_type)
+{
+  switch (reloc_type)
+    {
+    case R_ARM_COPY: return RTYPE_CLASS_COPY;
+    case R_ARM_JUMP_SLOT: return RTYPE_CLASS_PLT;
+    case R_ARM_TLS_DTPMOD32:
+    case R_ARM_TLS_DTPOFF32:
+    case R_ARM_TLS_TPOFF32:
+      return RTYPE_CLASS_TLS;
+    default: return RTYPE_CLASS_VALID;
+    }
+}
+
+PL_ARCH = {
+  .name = "ARM",
+  .class = ELFCLASS32,
+  .machine = EM_ARM,
+  .alternate_machine = { EM_NONE },
+  .R_JMP_SLOT = R_ARM_JUMP_SLOT,
+  .R_COPY = R_ARM_COPY,
+  .R_RELATIVE = R_ARM_RELATIVE,
+  .rtype_class_valid = RTYPE_CLASS_VALID,
+  .dynamic_linker = "/lib/ld-linux.so.2",
+  .adjust_dyn = arm_adjust_dyn,
+  .adjust_rel = arm_adjust_rel,
+  .adjust_rela = arm_adjust_rela,
+  .prelink_rel = arm_prelink_rel,
+  .prelink_rela = arm_prelink_rela,
+  .prelink_conflict_rel = arm_prelink_conflict_rel,
+  .prelink_conflict_rela = arm_prelink_conflict_rela,
+  .apply_conflict_rela = arm_apply_conflict_rela,
+  .apply_rel = arm_apply_rel,
+  .apply_rela = arm_apply_rela,
+  .rel_to_rela = arm_rel_to_rela,
+  .rela_to_rel = arm_rela_to_rel,
+  .need_rel_to_rela = arm_need_rel_to_rela,
+  .reloc_size = arm_reloc_size,
+  .reloc_class = arm_reloc_class,
+  .max_reloc_size = 4,
+  .arch_prelink = arm_arch_prelink,
+  .arch_undo_prelink = arm_arch_undo_prelink,
+  .undo_prelink_rel = arm_undo_prelink_rel,
+  /* Although TASK_UNMAPPED_BASE is 0x40000000, we leave some
+     area so that mmap of /etc/ld.so.cache and ld.so's malloc
+     does not take some library's VA slot.
+     Also, if this guard area isn't too small, typically
+     even dlopened libraries will get the slots they desire.  */
+  .mmap_base = 0x41000000,
+  .mmap_end =  0x50000000,
+  .max_page_size = 0x8000,
+  .page_size = 0x1000
+};
diff --git a/src/arch-cris.c b/src/arch-cris.c
new file mode 100644 (file)
index 0000000..d70260a
--- /dev/null
@@ -0,0 +1,412 @@
+/* Copyright (C) 2001, 2002, 2004, 2009 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <locale.h>
+#include <error.h>
+#include <argp.h>
+#include <stdlib.h>
+
+#include "prelink.h"
+
+static int
+cris_adjust_dyn (DSO *dso, int n, GElf_Dyn *dyn, GElf_Addr start,
+                GElf_Addr adjust)
+{
+  if (dyn->d_tag == DT_PLTGOT)
+    {
+      int sec = addr_to_sec (dso, dyn->d_un.d_ptr);
+      Elf32_Addr data;
+
+      if (sec == -1)
+       return 0;
+
+      data = read_ule32 (dso, dyn->d_un.d_ptr);
+      /* If .got[0] points to _DYNAMIC, it needs to be adjusted.  */
+      if (data == dso->shdr[n].sh_addr && data >= start)
+       write_le32 (dso, dyn->d_un.d_ptr, data + adjust);
+
+      data = read_ule32 (dso, dyn->d_un.d_ptr + 4);
+      /* If .got[1] points to .plt + 28, it needs to be adjusted.  */
+      if (data && data >= start)
+       {
+         int i;
+
+         for (i = 1; i < dso->ehdr.e_shnum; i++)
+           if (data == dso->shdr[i].sh_addr + 28
+               && dso->shdr[i].sh_type == SHT_PROGBITS
+               && strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                       dso->shdr[i].sh_name), ".plt") == 0)
+             {
+               write_le32 (dso, dyn->d_un.d_ptr + 4, data + adjust);
+               break;
+             }
+       }
+    }
+  return 0;
+}
+
+static int
+cris_adjust_rel (DSO *dso, GElf_Rel *rel, GElf_Addr start,
+                GElf_Addr adjust)
+{
+  error (0, 0, "%s: CRIS doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+cris_adjust_rela (DSO *dso, GElf_Rela *rela, GElf_Addr start,
+                 GElf_Addr adjust)
+{
+  Elf32_Addr data;
+
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_CRIS_RELATIVE:
+      if ((Elf32_Addr) rela->r_addend >= start)
+       rela->r_addend += (Elf32_Sword) adjust;
+      break;
+    case R_CRIS_JUMP_SLOT:
+      data = read_ule32 (dso, rela->r_offset);
+      if (data >= start)
+       write_le32 (dso, rela->r_offset, data + adjust);
+      break;
+      break;
+    }
+  return 0;
+}
+
+static int
+cris_prelink_rel (struct prelink_info *info, GElf_Rel *rel, GElf_Addr reladdr)
+{
+  error (0, 0, "%s: CRIS doesn't support REL relocs", info->dso->filename);
+  return 1;
+}
+
+static int
+cris_prelink_rela (struct prelink_info *info, GElf_Rela *rela,
+                  GElf_Addr relaaddr)
+{
+  DSO *dso;
+  GElf_Addr value;
+
+  dso = info->dso;
+  if (GELF_R_TYPE (rela->r_info) == R_CRIS_NONE)
+    /* Fast path: nothing to do.  */
+    return 0;
+  else if (GELF_R_TYPE (rela->r_info) == R_CRIS_RELATIVE)
+    {
+      write_le32 (dso, rela->r_offset, rela->r_addend);
+      return 0;
+    }
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  value += rela->r_addend;
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_CRIS_GLOB_DAT:
+    case R_CRIS_JUMP_SLOT:
+    case R_CRIS_32:
+      write_le32 (dso, rela->r_offset, value);
+      break;
+    case R_CRIS_16:
+      write_le16 (dso, rela->r_offset, value);
+      break;
+    case R_CRIS_8:
+      write_8 (dso, rela->r_offset, value);
+      break;
+    case R_CRIS_32_PCREL:
+      write_le32 (dso, rela->r_offset, value - rela->r_offset - 4);
+      break;
+    case R_CRIS_16_PCREL:
+      write_le16 (dso, rela->r_offset, value - rela->r_offset - 2);
+      break;
+    case R_CRIS_8_PCREL:
+      write_8 (dso, rela->r_offset, value - rela->r_offset - 1);
+      break;
+    case R_CRIS_COPY:
+      if (dso->ehdr.e_type == ET_EXEC)
+       /* COPY relocs are handled specially in generic code.  */
+       return 0;
+      error (0, 0, "%s: R_CRIS_COPY reloc in shared library?", dso->filename);
+      return 1;
+    default:
+      error (0, 0, "%s: Unknown cris relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+cris_apply_conflict_rela (struct prelink_info *info, GElf_Rela *rela,
+                         char *buf, GElf_Addr dest_addr)
+{
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_CRIS_GLOB_DAT:
+    case R_CRIS_JUMP_SLOT:
+    case R_CRIS_32:
+      buf_write_le32 (buf, rela->r_addend);
+      break;
+    case R_CRIS_16:
+      buf_write_le16 (buf, rela->r_addend);
+      break;
+    case R_CRIS_8:
+      buf_write_8 (buf, rela->r_addend);
+      break;
+    default:
+      abort ();
+    }
+  return 0;
+}
+
+static int
+cris_apply_rel (struct prelink_info *info, GElf_Rel *rel, char *buf)
+{
+  error (0, 0, "%s: CRIS doesn't support REL relocs", info->dso->filename);
+  return 1;
+}
+
+static int
+cris_apply_rela (struct prelink_info *info, GElf_Rela *rela, char *buf)
+{
+  GElf_Addr value;
+
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  value += rela->r_addend;
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_CRIS_NONE:
+      break;
+    case R_CRIS_GLOB_DAT:
+    case R_CRIS_JUMP_SLOT:
+    case R_CRIS_32:
+      buf_write_le32 (buf, value);
+      break;
+    case R_CRIS_16:
+      buf_write_le16 (buf, value);
+      break;
+    case R_CRIS_8:
+      buf_write_8 (buf, value);
+      break;
+    case R_CRIS_32_PCREL:
+      buf_write_le32 (buf, value - rela->r_offset - 4);
+      break;
+    case R_CRIS_16_PCREL:
+      buf_write_le16 (buf, value - rela->r_offset - 2);
+      break;
+    case R_CRIS_8:
+      buf_write_8 (buf, value - rela->r_offset - 1);
+      break;
+    case R_CRIS_COPY:
+      abort ();
+    case R_CRIS_RELATIVE:
+      error (0, 0, "%s: R_CRIS_RELATIVE in ET_EXEC object?", info->dso->filename);
+      return 1;
+    default:
+      return 1;
+    }
+  return 0;
+}
+
+static int
+cris_prelink_conflict_rel (DSO *dso, struct prelink_info *info, GElf_Rel *rel,
+                          GElf_Addr reladdr)
+{
+  error (0, 0, "%s: CRIS doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+cris_prelink_conflict_rela (DSO *dso, struct prelink_info *info,
+                           GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  GElf_Addr value;
+  struct prelink_conflict *conflict;
+  GElf_Rela *ret;
+
+  if (GELF_R_TYPE (rela->r_info) == R_CRIS_RELATIVE
+      || GELF_R_TYPE (rela->r_info) == R_CRIS_NONE
+      || info->dso == dso)
+    /* Fast path: nothing to do.  */
+    return 0;
+  conflict = prelink_conflict (info, GELF_R_SYM (rela->r_info),
+                              GELF_R_TYPE (rela->r_info));
+  if (conflict == NULL)
+    return 0;
+  else if (conflict->ifunc)
+    {
+      error (0, 0, "%s: STT_GNU_IFUNC not handled on CRIS yet",
+            dso->filename);
+      return 1;
+    }
+  value = conflict_lookup_value (conflict);
+  ret = prelink_conflict_add_rela (info);
+  if (ret == NULL)
+    return 1;
+  ret->r_offset = rela->r_offset;
+  ret->r_info = GELF_R_INFO (0, GELF_R_TYPE (rela->r_info));
+  value += rela->r_addend;
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_CRIS_GLOB_DAT:
+    case R_CRIS_JUMP_SLOT:
+    case R_CRIS_32:
+    case R_CRIS_16:
+    case R_CRIS_8:
+      ret->r_addend = (Elf32_Sword) (value + rela->r_addend);
+      break;
+    case R_CRIS_32_PCREL:
+      ret->r_addend = (Elf32_Sword) (value + rela->r_addend
+                                    - rela->r_offset - 4);
+      ret->r_info = GELF_R_INFO (0, R_CRIS_32);
+      break;
+    case R_CRIS_16_PCREL:
+      ret->r_addend = (Elf32_Sword) (value + rela->r_addend
+                                    - rela->r_offset - 2);
+      ret->r_info = GELF_R_INFO (0, R_CRIS_16);
+      break;
+    case R_CRIS_8_PCREL:
+      ret->r_addend = (Elf32_Sword) (value + rela->r_addend
+                                    - rela->r_offset - 1);
+      ret->r_info = GELF_R_INFO (0, R_CRIS_8);
+      break;
+    case R_CRIS_COPY:
+      error (0, 0, "R_CRIS_COPY should not be present in shared libraries");
+      return 1;
+    default:
+      error (0, 0, "%s: Unknown cris relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+cris_rel_to_rela (DSO *dso, GElf_Rel *rel, GElf_Rela *rela)
+{
+  return 0;
+}
+
+static int
+cris_need_rel_to_rela (DSO *dso, int first, int last)
+{
+  return 0;
+}
+
+static int
+cris_arch_prelink (struct prelink_info *info)
+{
+  DSO *dso;
+  int i;
+
+  dso = info->dso;
+  if (dso->info[DT_PLTGOT])
+    {
+      /* Write address of .plt + 28 into got[1].
+        .plt + 28 is what got[3] contains unless prelinking.  */
+      int sec = addr_to_sec (dso, dso->info[DT_PLTGOT]);
+      Elf32_Addr data;
+
+      if (sec == -1)
+       return 1;
+
+      for (i = 1; i < dso->ehdr.e_shnum; i++)
+       if (dso->shdr[i].sh_type == SHT_PROGBITS
+           && ! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                dso->shdr[i].sh_name),
+                        ".plt"))
+       break;
+
+      assert (i < dso->ehdr.e_shnum);
+      data = dso->shdr[i].sh_addr + 28;
+      write_le32 (dso, dso->info[DT_PLTGOT] + 4, data);
+    }
+
+  return 0;
+}
+
+static int
+cris_reloc_size (int reloc_type)
+{
+  switch (reloc_type)
+    {
+    case R_CRIS_16:
+    case R_CRIS_16_PCREL:
+      return 2;
+    case R_CRIS_8:
+    case R_CRIS_8_PCREL:
+      return 1;
+    default:
+      return 4;
+    }
+}
+
+static int
+cris_reloc_class (int reloc_type)
+{
+  switch (reloc_type)
+    {
+    case R_CRIS_COPY: return RTYPE_CLASS_COPY;
+    case R_CRIS_JUMP_SLOT: return RTYPE_CLASS_PLT;
+    default: return RTYPE_CLASS_VALID;
+    }
+}
+
+PL_ARCH = {
+  .name = "CRIS",
+  .class = ELFCLASS32,
+  .machine = EM_CRIS,
+  .alternate_machine = { EM_NONE },
+  .R_JUMP_SLOT = R_CRIS_JUMP_SLOT,
+  .R_COPY = R_CRIS_COPY,
+  .R_RELATIVE = R_CRIS_RELATIVE,
+  .rtype_class_valid = RTYPE_CLASS_VALID,
+  .dynamic_linker = "/lib/ld.so.1",
+  .adjust_dyn = cris_adjust_dyn,
+  .adjust_rel = cris_adjust_rel,
+  .adjust_rela = cris_adjust_rela,
+  .prelink_rel = cris_prelink_rel,
+  .prelink_rela = cris_prelink_rela,
+  .prelink_conflict_rel = cris_prelink_conflict_rel,
+  .prelink_conflict_rela = cris_prelink_conflict_rela,
+  .apply_conflict_rela = cris_apply_conflict_rela,
+  .apply_rel = cris_apply_rel,
+  .apply_rela = cris_apply_rela,
+  .rel_to_rela = cris_rel_to_rela,
+  .need_rel_to_rela = cris_need_rel_to_rela,
+  .reloc_size = cris_reloc_size,
+  .reloc_class = cris_reloc_class,
+  .max_reloc_size = 4,
+  .arch_prelink = cris_arch_prelink,
+  /* Although TASK_UNMAPPED_BASE is 0x3aaaa000, we leave some
+     area so that mmap of /etc/ld.so.cache and ld.so's malloc
+     does not take some library's VA slot.
+     Also, if this guard area isn't too small, typically
+     even dlopened libraries will get the slots they desire.  */
+  .mmap_base = 0x3c000000,
+  .mmap_end =  0x48000000,
+  .max_page_size = 0x2000,
+  .page_size = 0x2000
+};
diff --git a/src/arch-i386.c b/src/arch-i386.c
new file mode 100644 (file)
index 0000000..67b12b5
--- /dev/null
@@ -0,0 +1,1127 @@
+/* Copyright (C) 2001, 2002, 2003, 2004, 2009 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <locale.h>
+#include <error.h>
+#include <argp.h>
+#include <stdlib.h>
+
+#include "prelink.h"
+#include "layout.h"
+
+static int
+i386_adjust_dyn (DSO *dso, int n, GElf_Dyn *dyn, GElf_Addr start,
+                GElf_Addr adjust)
+{
+  if (dyn->d_tag == DT_PLTGOT)
+    {
+      int sec = addr_to_sec (dso, dyn->d_un.d_ptr);
+      Elf32_Addr data;
+
+      if (sec == -1)
+       return 0;
+
+      data = read_ule32 (dso, dyn->d_un.d_ptr);
+      /* If .got.plt[0] points to _DYNAMIC, it needs to be adjusted.  */
+      if (data == dso->shdr[n].sh_addr && data >= start)
+       write_le32 (dso, dyn->d_un.d_ptr, data + adjust);
+
+      data = read_ule32 (dso, dyn->d_un.d_ptr + 4);
+      /* If .got.plt[1] points to .plt + 0x16, it needs to be adjusted.  */
+      if (data && data >= start)
+       {
+         int i;
+
+         for (i = 1; i < dso->ehdr.e_shnum; i++)
+           if (data == dso->shdr[i].sh_addr + 0x16
+               && dso->shdr[i].sh_type == SHT_PROGBITS
+               && strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                       dso->shdr[i].sh_name), ".plt") == 0)
+             {
+               write_le32 (dso, dyn->d_un.d_ptr + 4, data + adjust);
+               break;
+             }
+       }
+    }
+  return 0;
+}
+
+static int
+i386_adjust_rel (DSO *dso, GElf_Rel *rel, GElf_Addr start,
+                GElf_Addr adjust)
+{
+  Elf32_Addr data;
+  switch (GELF_R_TYPE (rel->r_info))
+    {
+    case R_386_RELATIVE:
+    case R_386_JMP_SLOT:
+    case R_386_IRELATIVE:
+      data = read_ule32 (dso, rel->r_offset);
+      if (data >= start)
+       write_le32 (dso, rel->r_offset, data + adjust);
+      break;
+    }
+  return 0;
+}
+
+static int
+i386_adjust_rela (DSO *dso, GElf_Rela *rela, GElf_Addr start,
+                 GElf_Addr adjust)
+{
+  Elf32_Addr data;
+
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_386_RELATIVE:
+    case R_386_IRELATIVE:
+      if ((Elf32_Addr) rela->r_addend >= start)
+       {
+         rela->r_addend += (Elf32_Sword) adjust;
+         /* Write it to the memory location as well.
+            Not necessary, but we can do it.  */
+         write_le32 (dso, rela->r_offset, rela->r_addend);
+       }
+      break;
+    case R_386_JMP_SLOT:
+      data = read_ule32 (dso, rela->r_offset);
+      if (data >= start)
+       write_le32 (dso, rela->r_offset, data + adjust);
+      break;
+      break;
+    }
+  return 0;
+}
+
+static int
+i386_prelink_rel (struct prelink_info *info, GElf_Rel *rel, GElf_Addr reladdr)
+{
+  DSO *dso;
+  GElf_Addr value;
+
+  if (GELF_R_TYPE (rel->r_info) == R_386_RELATIVE
+      || GELF_R_TYPE (rel->r_info) == R_386_IRELATIVE
+      || GELF_R_TYPE (rel->r_info) == R_386_NONE)
+    /* Fast path: nothing to do.  */
+    return 0;
+  dso = info->dso;
+  value = info->resolve (info, GELF_R_SYM (rel->r_info),
+                        GELF_R_TYPE (rel->r_info));
+  switch (GELF_R_TYPE (rel->r_info))
+    {
+    case R_386_GLOB_DAT:
+    case R_386_JMP_SLOT:
+      write_le32 (dso, rel->r_offset, value);
+      break;
+    case R_386_32:
+      {
+       if (read_ule32 (dso, rel->r_offset))
+         {
+           error (0, 0, "%s: R_386_32 relocs with non-zero addend should not be present in prelinked REL sections",
+                  dso->filename);
+           return 1;
+         }
+       rel->r_info = GELF_R_INFO (GELF_R_SYM (rel->r_info), R_386_GLOB_DAT);
+       write_le32 (dso, rel->r_offset, value);
+       /* Tell prelink_rel routine *rel has changed.  */
+       return 2;
+      }
+    case R_386_PC32:
+      error (0, 0, "%s: R_386_PC32 relocs should not be present in prelinked REL sections",
+            dso->filename);
+      return 1;
+    case R_386_TLS_DTPOFF32:
+      write_le32 (dso, rel->r_offset, value);
+      break;
+    /* DTPMOD32 and TPOFF{32,} is impossible to predict unless prelink
+       sets the rules.  Also for TPOFF{32,} there is REL->RELA problem.  */
+    case R_386_TLS_DTPMOD32:
+      if (dso->ehdr.e_type == ET_EXEC)
+       {
+         error (0, 0, "%s: R_386_TLS_DTPMOD32 reloc in executable?",
+                dso->filename);
+         return 1;
+       }
+      break;
+    case R_386_TLS_TPOFF32:
+    case R_386_TLS_TPOFF:
+      if (dso->ehdr.e_type == ET_EXEC)
+       error (0, 0, "%s: R_386_TLS_TPOFF relocs should not be present in prelinked ET_EXEC REL sections",
+              dso->filename);
+      break;
+    case R_386_COPY:
+      if (dso->ehdr.e_type == ET_EXEC)
+       /* COPY relocs are handled specially in generic code.  */
+       return 0;
+      error (0, 0, "%s: R_386_COPY reloc in shared library?", dso->filename);
+      return 1;
+    default:
+      error (0, 0, "%s: Unknown i386 relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rel->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+i386_prelink_rela (struct prelink_info *info, GElf_Rela *rela,
+                  GElf_Addr relaaddr)
+{
+  DSO *dso;
+  GElf_Addr value;
+
+  if (GELF_R_TYPE (rela->r_info) == R_386_RELATIVE
+      || GELF_R_TYPE (rela->r_info) == R_386_IRELATIVE
+      || GELF_R_TYPE (rela->r_info) == R_386_NONE)
+    /* Fast path: nothing to do.  */
+    return 0;
+  dso = info->dso;
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_386_GLOB_DAT:
+    case R_386_JMP_SLOT:
+      write_le32 (dso, rela->r_offset, value + rela->r_addend);
+      break;
+    case R_386_32:
+      write_le32 (dso, rela->r_offset, value + rela->r_addend);
+      break;
+    case R_386_PC32:
+      write_le32 (dso, rela->r_offset, value + rela->r_addend - rela->r_offset);
+      break;
+    case R_386_TLS_DTPOFF32:
+      write_le32 (dso, rela->r_offset, value + rela->r_addend);
+      break;
+    /* DTPMOD32 and TPOFF{32,} is impossible to predict unless prelink
+       sets the rules.  */
+    case R_386_TLS_DTPMOD32:
+      if (dso->ehdr.e_type == ET_EXEC)
+       {
+         error (0, 0, "%s: R_386_TLS_DTPMOD32 reloc in executable?",
+                dso->filename);
+         return 1;
+       }
+      break;
+    case R_386_TLS_TPOFF32:
+      if (dso->ehdr.e_type == ET_EXEC && info->resolvetls)
+       write_le32 (dso, rela->r_offset,
+                   -(value + rela->r_addend - info->resolvetls->offset));
+      break;
+    case R_386_TLS_TPOFF:
+      if (dso->ehdr.e_type == ET_EXEC && info->resolvetls)
+       write_le32 (dso, rela->r_offset,
+                   value + rela->r_addend - info->resolvetls->offset);
+      break;
+    case R_386_COPY:
+      if (dso->ehdr.e_type == ET_EXEC)
+       /* COPY relocs are handled specially in generic code.  */
+       return 0;
+      error (0, 0, "%s: R_386_COPY reloc in shared library?", dso->filename);
+      return 1;
+    default:
+      error (0, 0, "%s: Unknown i386 relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+i386_apply_conflict_rela (struct prelink_info *info, GElf_Rela *rela,
+                         char *buf, GElf_Addr dest_addr)
+{
+  GElf_Rela *ret;
+
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_386_GLOB_DAT:
+    case R_386_JMP_SLOT:
+    case R_386_32:
+      buf_write_le32 (buf, rela->r_addend);
+      break;
+    case R_386_IRELATIVE:
+      if (dest_addr == 0)
+       return 5;
+      ret = prelink_conflict_add_rela (info);
+      if (ret == NULL)
+       return 1;
+      ret->r_offset = dest_addr;
+      ret->r_info = GELF_R_INFO (0, R_386_IRELATIVE);
+      ret->r_addend = rela->r_addend;
+      break;
+    default:
+      abort ();
+    }
+  return 0;
+}
+
+static int
+i386_apply_rel (struct prelink_info *info, GElf_Rel *rel, char *buf)
+{
+  GElf_Addr value;
+
+  value = info->resolve (info, GELF_R_SYM (rel->r_info),
+                        GELF_R_TYPE (rel->r_info));
+  switch (GELF_R_TYPE (rel->r_info))
+    {
+    case R_386_NONE:
+      break;
+    case R_386_GLOB_DAT:
+    case R_386_JMP_SLOT:
+      buf_write_le32 (buf, value);
+      break;
+    case R_386_32:
+      buf_write_le32 (buf, value + read_ule32 (info->dso, rel->r_offset));
+      break;
+    case R_386_PC32:
+      buf_write_le32 (buf, value + read_ule32 (info->dso, rel->r_offset)
+                          - rel->r_offset);
+      break;
+    case R_386_COPY:
+      abort ();
+    case R_386_RELATIVE:
+      error (0, 0, "%s: R_386_RELATIVE in ET_EXEC object?", info->dso->filename);
+      return 1;
+    default:
+      return 1;
+    }
+  return 0;
+}
+
+static int
+i386_apply_rela (struct prelink_info *info, GElf_Rela *rela, char *buf)
+{
+  GElf_Addr value;
+
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_386_NONE:
+      break;
+    case R_386_GLOB_DAT:
+    case R_386_JMP_SLOT:
+    case R_386_32:
+      buf_write_le32 (buf, value + rela->r_addend);
+      break;
+    case R_386_PC32:
+      buf_write_le32 (buf, value + rela->r_addend - rela->r_offset);
+      break;
+    case R_386_COPY:
+      abort ();
+    case R_386_RELATIVE:
+      error (0, 0, "%s: R_386_RELATIVE in ET_EXEC object?", info->dso->filename);
+      return 1;
+    default:
+      return 1;
+    }
+  return 0;
+}
+
+static int
+i386_prelink_conflict_rel (DSO *dso, struct prelink_info *info, GElf_Rel *rel,
+                          GElf_Addr reladdr)
+{
+  GElf_Addr value;
+  struct prelink_conflict *conflict;
+  struct prelink_tls *tls;
+  GElf_Rela *ret;
+
+  if (GELF_R_TYPE (rel->r_info) == R_386_RELATIVE
+      || GELF_R_TYPE (rel->r_info) == R_386_NONE)
+    /* Fast path: nothing to do.  */
+    return 0;
+  conflict = prelink_conflict (info, GELF_R_SYM (rel->r_info),
+                              GELF_R_TYPE (rel->r_info));
+  if (conflict == NULL)
+    {
+      switch (GELF_R_TYPE (rel->r_info))
+       {
+       /* Even local DTPMOD and TPOFF relocs need conflicts.  */
+       case R_386_TLS_DTPMOD32:
+       case R_386_TLS_TPOFF32:
+       case R_386_TLS_TPOFF:
+         if (info->curtls == NULL || info->dso == dso)
+           return 0;
+         break;
+       /* Similarly IRELATIVE relocations always need conflicts.  */
+       case R_386_IRELATIVE:
+         break;
+       default:
+         return 0;
+       }
+      value = 0;
+    }
+  else if (info->dso == dso && !conflict->ifunc)
+    return 0;
+  else
+    {
+      /* DTPOFF32 wants to see only real conflicts, not lookups
+        with reloc_class RTYPE_CLASS_TLS.  */
+      if (GELF_R_TYPE (rel->r_info) == R_386_TLS_DTPOFF32
+         && conflict->lookup.tls == conflict->conflict.tls
+         && conflict->lookupval == conflict->conflictval)
+       return 0;
+
+      value = conflict_lookup_value (conflict);
+    }
+  ret = prelink_conflict_add_rela (info);
+  if (ret == NULL)
+    return 1;
+  ret->r_offset = rel->r_offset;
+  ret->r_info = GELF_R_INFO (0, GELF_R_TYPE (rel->r_info));
+  switch (GELF_R_TYPE (rel->r_info))
+    {
+    case R_386_GLOB_DAT:
+      ret->r_info = GELF_R_INFO (0, R_386_32);
+      /* FALLTHROUGH */
+    case R_386_JMP_SLOT:
+      ret->r_addend = (Elf32_Sword) value;
+      if (conflict != NULL && conflict->ifunc)
+       ret->r_info = GELF_R_INFO (0, R_386_IRELATIVE);
+      break;
+    case R_386_IRELATIVE:
+      ret->r_addend = (Elf32_Sword) read_ule32 (dso, rel->r_offset);
+      break;
+    case R_386_32:
+    case R_386_PC32:
+      error (0, 0, "%s: R_386_%s32 relocs should not be present in prelinked REL sections",
+            dso->filename, GELF_R_TYPE (rel->r_info) == R_386_32 ? "" : "PC");
+      return 1;
+    case R_386_TLS_DTPMOD32:
+    case R_386_TLS_DTPOFF32:
+    case R_386_TLS_TPOFF32:
+    case R_386_TLS_TPOFF:
+      if (conflict != NULL
+         && (conflict->reloc_class != RTYPE_CLASS_TLS
+             || conflict->lookup.tls == NULL))
+       {
+         error (0, 0, "%s: R_386_TLS not resolving to STT_TLS symbol",
+                dso->filename);
+         return 1;
+       }
+      tls = conflict ? conflict->lookup.tls : info->curtls;
+      ret->r_info = GELF_R_INFO (0, R_386_32);
+      switch (GELF_R_TYPE (rel->r_info))
+       {
+       case R_386_TLS_DTPMOD32:
+         ret->r_addend = tls->modid;
+         break;
+       case R_386_TLS_DTPOFF32:
+         ret->r_addend = value;
+         break;
+       case R_386_TLS_TPOFF32:
+         ret->r_addend = -(value + read_ule32 (dso, rel->r_offset)
+                           - tls->offset);
+         break;
+       case R_386_TLS_TPOFF:
+         ret->r_addend = value + read_ule32 (dso, rel->r_offset)
+                         - tls->offset;
+       }
+      break;
+    case R_386_COPY:
+      error (0, 0, "R_386_COPY should not be present in shared libraries");
+      return 1;
+    default:
+      error (0, 0, "%s: Unknown i386 relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rel->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+i386_prelink_conflict_rela (DSO *dso, struct prelink_info *info,
+                           GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  GElf_Addr value;
+  struct prelink_conflict *conflict;
+  struct prelink_tls *tls;
+  GElf_Rela *ret;
+
+  if (GELF_R_TYPE (rela->r_info) == R_386_RELATIVE
+      || GELF_R_TYPE (rela->r_info) == R_386_NONE)
+    /* Fast path: nothing to do.  */
+    return 0;
+  conflict = prelink_conflict (info, GELF_R_SYM (rela->r_info),
+                              GELF_R_TYPE (rela->r_info));
+  if (conflict == NULL)
+    {
+      switch (GELF_R_TYPE (rela->r_info))
+       {
+       /* Even local DTPMOD and TPOFF relocs need conflicts.  */
+       case R_386_TLS_DTPMOD32:
+       case R_386_TLS_TPOFF32:
+       case R_386_TLS_TPOFF:
+         if (info->curtls == NULL || info->dso == dso)
+           return 0;
+         break;
+       /* Similarly IRELATIVE relocations always need conflicts.  */
+       case R_386_IRELATIVE:
+         break;
+       default:
+         return 0;
+       }
+      value = 0;
+    }
+  else if (info->dso == dso && !conflict->ifunc)
+    return 0;
+  else
+    {
+      /* DTPOFF32 wants to see only real conflicts, not lookups
+        with reloc_class RTYPE_CLASS_TLS.  */
+      if (GELF_R_TYPE (rela->r_info) == R_386_TLS_DTPOFF32
+         && conflict->lookup.tls == conflict->conflict.tls
+         && conflict->lookupval == conflict->conflictval)
+       return 0;
+
+      value = conflict_lookup_value (conflict);
+    }
+  ret = prelink_conflict_add_rela (info);
+  if (ret == NULL)
+    return 1;
+  ret->r_offset = rela->r_offset;
+  ret->r_info = GELF_R_INFO (0, GELF_R_TYPE (rela->r_info));
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_386_GLOB_DAT:
+      ret->r_info = GELF_R_INFO (0, R_386_32);
+      /* FALLTHROUGH */
+    case R_386_JMP_SLOT:
+    case R_386_IRELATIVE:
+      ret->r_addend = (Elf32_Sword) (value + rela->r_addend);
+      if (conflict != NULL && conflict->ifunc)
+       ret->r_info = GELF_R_INFO (0, R_386_IRELATIVE);
+      break;
+    case R_386_32:
+      value += rela->r_addend;
+      ret->r_addend = (Elf32_Sword) value;
+      if (conflict != NULL && conflict->ifunc)
+       ret->r_info = GELF_R_INFO (0, R_386_IRELATIVE);
+      break;
+    case R_386_PC32:
+      ret->r_addend = (Elf32_Sword) (value + rela->r_addend - rela->r_offset);
+      ret->r_info = GELF_R_INFO (0, R_386_32);
+      break;
+    case R_386_COPY:
+      error (0, 0, "R_386_COPY should not be present in shared libraries");
+      return 1;
+    case R_386_TLS_DTPMOD32:
+    case R_386_TLS_DTPOFF32:
+    case R_386_TLS_TPOFF32:
+    case R_386_TLS_TPOFF:
+      if (conflict != NULL
+         && (conflict->reloc_class != RTYPE_CLASS_TLS
+             || conflict->lookup.tls == NULL))
+       {
+         error (0, 0, "%s: R_386_TLS not resolving to STT_TLS symbol",
+                dso->filename);
+         return 1;
+       }
+      tls = conflict ? conflict->lookup.tls : info->curtls;
+      ret->r_info = GELF_R_INFO (0, R_386_32);
+      switch (GELF_R_TYPE (rela->r_info))
+       {
+       case R_386_TLS_DTPMOD32:
+         ret->r_addend = tls->modid;
+         break;
+       case R_386_TLS_DTPOFF32:
+         ret->r_addend += value;
+         break;
+       case R_386_TLS_TPOFF32:
+         ret->r_addend = -(value + rela->r_addend - tls->offset);
+         break;
+       case R_386_TLS_TPOFF:
+         ret->r_addend = value + rela->r_addend - tls->offset;
+         break;
+       }
+      break;
+    default:
+      error (0, 0, "%s: Unknown i386 relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+i386_rel_to_rela (DSO *dso, GElf_Rel *rel, GElf_Rela *rela)
+{
+  rela->r_offset = rel->r_offset;
+  rela->r_info = rel->r_info;
+  switch (GELF_R_TYPE (rel->r_info))
+    {
+    case R_386_JMP_SLOT:
+      /* We should be never converting .rel.plt into .rela.plt.  */
+      abort ();
+    case R_386_RELATIVE:
+    case R_386_IRELATIVE:
+    case R_386_32:
+    case R_386_PC32:
+    case R_386_TLS_TPOFF32:
+    case R_386_TLS_TPOFF:
+      rela->r_addend = (Elf32_Sword) read_ule32 (dso, rel->r_offset);
+      break;
+    case R_386_COPY:
+    case R_386_GLOB_DAT:
+    case R_386_TLS_DTPOFF32:
+    case R_386_TLS_DTPMOD32:
+      rela->r_addend = 0;
+      break;
+    }
+  return 0;
+}
+
+static int
+i386_need_rel_to_rela (DSO *dso, int first, int last)
+{
+  Elf_Data *data;
+  Elf_Scn *scn;
+  Elf32_Rel *rel, *relend;
+  unsigned int val;
+
+  while (first <= last)
+    {
+      data = NULL;
+      scn = dso->scn[first++];
+      while ((data = elf_getdata (scn, data)) != NULL)
+       {
+         rel = (Elf32_Rel *) data->d_buf;
+         relend = rel + data->d_size / sizeof (Elf32_Rel);
+         for (; rel < relend; rel++)
+           switch (ELF32_R_TYPE (rel->r_info))
+             {
+             case R_386_32:
+               val = read_ule32 (dso, rel->r_offset);
+               /* R_386_32 with addend 0 can be converted
+                  to R_386_GLOB_DAT and we don't have to convert
+                  to RELA because of that.  */
+               if (val == 0)
+                 break;
+               /* FALLTHROUGH */
+             case R_386_PC32:
+               return 1;
+             case R_386_TLS_TPOFF32:
+             case R_386_TLS_TPOFF:
+               /* In shared libraries TPOFF is changed always into
+                  conflicts, for executables we need to preserve
+                  original addend.  */
+               if (dso->ehdr.e_type == ET_EXEC)
+                 return 1;
+               break;
+             }
+       }
+    }
+  return 0;
+}
+
+static int
+i386_arch_prelink (struct prelink_info *info)
+{
+  DSO *dso;
+  int i;
+
+  dso = info->dso;
+  if (dso->info[DT_PLTGOT])
+    {
+      /* Write address of .plt + 0x16 into got[1].
+        .plt + 0x16 is what got[3] contains unless prelinking.  */
+      int sec = addr_to_sec (dso, dso->info[DT_PLTGOT]);
+      Elf32_Addr data;
+
+      if (sec == -1)
+       return 1;
+
+      for (i = 1; i < dso->ehdr.e_shnum; i++)
+       if (dso->shdr[i].sh_type == SHT_PROGBITS
+           && ! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                dso->shdr[i].sh_name),
+                        ".plt"))
+       break;
+
+      if (i == dso->ehdr.e_shnum)
+       return 0;
+      data = dso->shdr[i].sh_addr + 0x16;
+      write_le32 (dso, dso->info[DT_PLTGOT] + 4, data);
+    }
+
+  return 0;
+}
+
+static int
+i386_arch_undo_prelink (DSO *dso)
+{
+  int i;
+
+  if (dso->info[DT_PLTGOT])
+    {
+      /* Clear got[1] if it contains address of .plt + 0x16.  */
+      int sec = addr_to_sec (dso, dso->info[DT_PLTGOT]);
+      Elf32_Addr data;
+
+      if (sec == -1)
+       return 1;
+
+      for (i = 1; i < dso->ehdr.e_shnum; i++)
+       if (dso->shdr[i].sh_type == SHT_PROGBITS
+           && ! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                dso->shdr[i].sh_name),
+                        ".plt"))
+       break;
+
+      if (i == dso->ehdr.e_shnum)
+       return 0;
+      data = read_ule32 (dso, dso->info[DT_PLTGOT] + 4);
+      if (data == dso->shdr[i].sh_addr + 0x16)
+       write_le32 (dso, dso->info[DT_PLTGOT] + 4, 0);
+    }
+
+  return 0;
+}
+
+static int
+i386_undo_prelink_rel (DSO *dso, GElf_Rel *rel, GElf_Addr reladdr)
+{
+  int sec;
+  const char *name;
+
+  switch (GELF_R_TYPE (rel->r_info))
+    {
+    case R_386_NONE:
+    case R_386_RELATIVE:
+    case R_386_IRELATIVE:
+      break;
+    case R_386_JMP_SLOT:
+      sec = addr_to_sec (dso, rel->r_offset);
+      name = strptr (dso, dso->ehdr.e_shstrndx, dso->shdr[sec].sh_name);
+      if (sec == -1 || (strcmp (name, ".got") && strcmp (name, ".got.plt")))
+       {
+         error (0, 0, "%s: R_386_JMP_SLOT not pointing into .got section",
+                dso->filename);
+         return 1;
+       }
+      else
+       {
+         Elf32_Addr data = read_ule32 (dso, dso->shdr[sec].sh_addr + 4);
+
+         assert (rel->r_offset >= dso->shdr[sec].sh_addr + 12);
+         assert (((rel->r_offset - dso->shdr[sec].sh_addr) & 3) == 0);
+         write_le32 (dso, rel->r_offset,
+                     4 * (rel->r_offset - dso->shdr[sec].sh_addr - 12)
+                     + data);
+       }
+      break;
+    case R_386_GLOB_DAT:
+      sec = addr_to_sec (dso, rel->r_offset);
+
+      write_le32 (dso, rel->r_offset, 0);
+      if (sec != -1)
+       {
+         if (strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                             dso->shdr[sec].sh_name),
+                     ".got"))
+           {
+             rel->r_info = GELF_R_INFO (GELF_R_SYM (rel->r_info), R_386_32);
+             return 2;
+           }
+       }
+      break;
+    case R_386_32:
+    case R_386_PC32:
+      error (0, 0, "%s: R_386_%s32 relocs should not be present in prelinked REL sections",
+            GELF_R_TYPE (rel->r_info) == R_386_32 ? "" : "PC", dso->filename);
+      return 1;
+    case R_386_COPY:
+      if (dso->ehdr.e_type == ET_EXEC)
+       /* COPY relocs are handled specially in generic code.  */
+       return 0;
+      error (0, 0, "%s: R_386_COPY reloc in shared library?", dso->filename);
+      return 1;
+    case R_386_TLS_DTPMOD32:
+    case R_386_TLS_DTPOFF32:
+      write_le32 (dso, rel->r_offset, 0);
+      break;
+    case R_386_TLS_TPOFF32:
+    case R_386_TLS_TPOFF:
+      break;
+    default:
+      error (0, 0, "%s: Unknown i386 relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rel->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+i386_rela_to_rel (DSO *dso, GElf_Rela *rela, GElf_Rel *rel)
+{
+  rel->r_offset = rela->r_offset;
+  rel->r_info = rela->r_info;
+  switch (GELF_R_TYPE (rel->r_info))
+    {
+    case R_386_JMP_SLOT:
+      /* We should be never converting .rel.plt into .rela.plt
+        and thus never .rela.plt back to .rel.plt.  */
+      abort ();
+    case R_386_RELATIVE:
+    case R_386_IRELATIVE:
+    case R_386_32:
+    case R_386_PC32:
+    case R_386_TLS_TPOFF32:
+    case R_386_TLS_TPOFF:
+      write_le32 (dso, rela->r_offset, rela->r_addend);
+      break;
+    case R_386_COPY:
+    case R_386_GLOB_DAT:
+    case R_386_TLS_DTPMOD32:
+    case R_386_TLS_DTPOFF32:
+      write_le32 (dso, rela->r_offset, 0);
+      break;
+    }
+  return 0;
+}
+
+static int
+i386_reloc_size (int reloc_type)
+{
+  assert (reloc_type != R_386_COPY);
+  return 4;
+}
+
+static int
+i386_reloc_class (int reloc_type)
+{
+  switch (reloc_type)
+    {
+    case R_386_COPY: return RTYPE_CLASS_COPY;
+    case R_386_JMP_SLOT: return RTYPE_CLASS_PLT;
+    case R_386_TLS_DTPMOD32:
+    case R_386_TLS_DTPOFF32:
+    case R_386_TLS_TPOFF32:
+    case R_386_TLS_TPOFF:
+      return RTYPE_CLASS_TLS;
+    default: return RTYPE_CLASS_VALID;
+    }
+}
+
+/* Library memory regions if --exec-shield in order of precedence:
+   0x00101000 + (rand % 0x00cff000) .. 0x00e00000 bottom to top
+   0x00101000 .. 0x00101000 + (rand % 0x00cff000) bottom to top
+   0x02000000 + (rand % 0x06000000) .. 0x08000000 bottom to top
+   0x02000000 .. 0x02000000 + (rand % 0x06000000) bottom to top
+   0x41000000 + (rand % 0x0f000000) .. 0x50000000 bottom to top
+   0x41000000 .. 0x41000000 + (rand % 0x0f000000) bottom to top  */
+
+#define REG0S  0x00101000
+#define REG0E  0x00e00000
+#define REG1S  0x02000000
+#define REG1E  0x08000000
+#define REG2S  0x41000000
+#define REG2E  0x50000000
+
+struct i386_layout_data
+{
+  struct prelink_entry e[6];
+  Elf32_Addr addrs[12];
+};
+
+static inline void
+list_append (struct prelink_entry *x, struct prelink_entry *e)
+{
+  x->prev->next = e;
+  e->prev = x->prev;
+  e->next = NULL;
+  x->prev = e;
+}
+
+static inline void
+list_merge (struct prelink_entry *x, struct prelink_entry *e)
+{
+  struct prelink_entry *end = e->prev;
+  x->prev->next = e;
+  e->prev = x->prev;
+  x->prev = end;
+}
+
+static int
+i386_layout_libs_init (struct layout_libs *l)
+{
+  if (exec_shield)
+    {
+      int i;
+      struct prelink_entry *e;
+
+      l->mmap_base = REG0S;
+      l->mmap_end = REG2E;
+      /* Don't allow this to be overridden.  */
+      mmap_reg_start = ~(GElf_Addr) 0;
+      mmap_reg_end = ~(GElf_Addr) 0;
+      for (i = 0; i < l->nlibs; ++i)
+       {
+         e = l->libs[i];
+         if (e->done == 0)
+           continue;
+         if (e->base < REG0S
+             || (e->base < REG1S && e->layend > REG0E)
+             || (e->base < REG2S && e->layend > REG1E)
+             || e->layend > REG2E)
+           e->done = 0;
+       }
+    }
+  else
+    {
+      l->mmap_base = REG2S;
+      l->mmap_end = REG2E;
+    }
+  return 0;
+}
+
+static void
+i386_find_free_addr (struct layout_libs *l, Elf32_Addr *ret,
+                    Elf32_Addr beg, Elf32_Addr end, Elf32_Addr start)
+{
+  struct prelink_entry *e;
+  Elf32_Addr low, hi;
+
+  ret[0] = beg;
+  ret[3] = end;
+  for (e = l->list; e != NULL; e = e->next)
+    if (e->base >= start)
+      break;
+  if (e == l->list)
+    {
+      ret[1] = ret[2] = start;
+      return;
+    }
+
+  if (e == NULL)
+    e = l->list;
+  low = start;
+  for (e = e->prev; ; e = e->prev)
+    {
+      if (e->base < beg)
+       break;
+      if (e->layend > low)
+       low = e->base;
+      if (e == l->list)
+       break;
+    }
+
+  if (low == start)
+    {
+      ret[1] = ret[2] = start;
+      return;
+    }
+
+  hi = start;
+  for (; e; e = e->next)
+    {
+      if (e->base >= end)
+       break;
+      if (e->base >= hi)
+       break;
+      if (e->layend > hi)
+       hi = e->layend;
+    }
+
+  assert (low >= beg && hi <= end);
+
+  if (hi - start > start - low)
+    start = low;
+  else
+    start = hi;
+
+  ret[1] = ret[2] = start;
+}
+
+static int
+i386_layout_libs_pre (struct layout_libs *l)
+{
+  Elf32_Addr mmap_start, virt;
+  struct prelink_entry *e, *next;
+  struct i386_layout_data *pld;
+  int i;
+
+  if (!exec_shield)
+    {
+      l->mmap_fin = l->mmap_end;
+      l->fake = NULL;
+      l->fakecnt = 0;
+      return 0;
+    }
+
+  pld = calloc (sizeof (*pld), 1);
+  if (pld == NULL)
+    error (EXIT_FAILURE, ENOMEM, "Cannot lay libraries out");
+
+  l->arch_data = pld;
+
+  mmap_start = l->mmap_start - REG0S;
+  /* Unless not randomizing, try not to make the first region
+     too small, because otherwise it is likely libc.so as first
+     big library would often end up at REG0S.  */
+  virt = mmap_start % (REG0E - REG0S - 0x200000);
+  i386_find_free_addr (l, pld->addrs + 0, REG0S, REG0E, REG0S + virt);
+  virt = mmap_start % (REG1E - REG1S - 0x200000);
+  i386_find_free_addr (l, pld->addrs + 4, REG1S, REG1E, REG1S + virt);
+  virt = mmap_start % (REG0E - REG0S - 0x200000);
+  i386_find_free_addr (l, pld->addrs + 8, REG2S, REG2E, REG2S + virt);
+  i = 0;
+  virt = pld->addrs[3] - pld->addrs[2];
+  pld->e[0].u.tmp = -1;
+  pld->e[0].base = virt;
+  pld->e[0].end = pld->e[0].base;
+  pld->e[0].layend = pld->e[0].end;
+  pld->e[0].prev = &pld->e[0];
+  next = NULL;
+  for (e = l->list; e != NULL; e = next)
+    {
+      next = e->next;
+      while (i < 5
+            && (e->base >= pld->addrs[2 * i + 1]
+                || pld->addrs[2 * i] == pld->addrs[2 * i + 1]))
+       {
+         ++i;
+         pld->e[i].u.tmp = -1;
+         if (i & 1)
+           virt -= pld->addrs[2 * i + 1] - pld->addrs[2 * i];
+         else
+           {
+             virt += pld->addrs[2 * i - 1] - pld->addrs[2 * i - 4];
+             virt += pld->addrs[2 * i + 3] - pld->addrs[2 * i + 2];
+           }
+         pld->e[i].base = virt;
+         pld->e[i].end = pld->e[i].base;
+         pld->e[i].layend = pld->e[i].end;
+         pld->e[i].prev = &pld->e[i];
+       }
+      e->base += (Elf32_Sword) (virt - pld->addrs[2 * i]);
+      e->end += (Elf32_Sword) (virt - pld->addrs[2 * i]);
+      e->layend += (Elf32_Sword) (virt - pld->addrs[2 * i]);
+      list_append (&pld->e[i], e);
+    }
+  while (i < 5)
+    {
+      ++i;
+      pld->e[i].u.tmp = -1;
+      if (i & 1)
+       virt -= pld->addrs[2 * i + 1] - pld->addrs[2 * i];
+      else
+       {
+         virt += pld->addrs[2 * i - 1] - pld->addrs[2 * i - 4];
+         virt += pld->addrs[2 * i + 3] - pld->addrs[2 * i + 2];
+       }
+      pld->e[i].base = virt;
+      pld->e[i].end = pld->e[i].base;
+      pld->e[i].layend = pld->e[i].end;
+      pld->e[i].prev = &pld->e[i];
+    }
+  l->list = &pld->e[1];
+  list_merge (&pld->e[1], &pld->e[0]);
+  list_merge (&pld->e[1], &pld->e[3]);
+  list_merge (&pld->e[1], &pld->e[2]);
+  list_merge (&pld->e[1], &pld->e[5]);
+  list_merge (&pld->e[1], &pld->e[4]);
+
+  l->mmap_start = 0;
+  l->mmap_base = 0;
+  l->mmap_fin = virt + pld->addrs[2 * i + 1] - pld->addrs[2 * i];
+  l->mmap_end = l->mmap_fin;
+  l->fakecnt = 6;
+  l->fake = pld->e;
+
+  return 0;
+}
+
+static int
+i386_layout_libs_post (struct layout_libs *l)
+{
+  struct prelink_entry *e;
+  struct i386_layout_data *pld = (struct i386_layout_data *) l->arch_data;
+  Elf32_Sword adj = 0;
+  int i;
+
+  if (!exec_shield)
+    return 0;
+
+  for (i = 0, e = l->list; e != NULL; e = e->next)
+    {
+      if (e == &pld->e[i ^ 1])
+       {
+         adj = pld->addrs[2 * (i ^ 1)] - e->base;
+         ++i;
+       }
+      else
+       {
+         e->base += adj;
+         e->end += adj;
+         e->layend += adj;
+       }
+    }
+
+  free (l->arch_data);
+  return 0;
+}
+
+PL_ARCH = {
+  .name = "i386",
+  .class = ELFCLASS32,
+  .machine = EM_386,
+  .alternate_machine = { EM_NONE },
+  .R_JMP_SLOT = R_386_JMP_SLOT,
+  .R_COPY = R_386_COPY,
+  .R_RELATIVE = R_386_RELATIVE,
+  .rtype_class_valid = RTYPE_CLASS_VALID,
+  .dynamic_linker = "/lib/ld-linux.so.2",
+  .adjust_dyn = i386_adjust_dyn,
+  .adjust_rel = i386_adjust_rel,
+  .adjust_rela = i386_adjust_rela,
+  .prelink_rel = i386_prelink_rel,
+  .prelink_rela = i386_prelink_rela,
+  .prelink_conflict_rel = i386_prelink_conflict_rel,
+  .prelink_conflict_rela = i386_prelink_conflict_rela,
+  .apply_conflict_rela = i386_apply_conflict_rela,
+  .apply_rel = i386_apply_rel,
+  .apply_rela = i386_apply_rela,
+  .rel_to_rela = i386_rel_to_rela,
+  .rela_to_rel = i386_rela_to_rel,
+  .need_rel_to_rela = i386_need_rel_to_rela,
+  .reloc_size = i386_reloc_size,
+  .reloc_class = i386_reloc_class,
+  .max_reloc_size = 4,
+  .arch_prelink = i386_arch_prelink,
+  .arch_undo_prelink = i386_arch_undo_prelink,
+  .undo_prelink_rel = i386_undo_prelink_rel,
+  .layout_libs_init = i386_layout_libs_init,
+  .layout_libs_pre = i386_layout_libs_pre,
+  .layout_libs_post = i386_layout_libs_post,
+  /* Although TASK_UNMAPPED_BASE is 0x40000000, we leave some
+     area so that mmap of /etc/ld.so.cache and ld.so's malloc
+     does not take some library's VA slot.
+     Also, if this guard area isn't too small, typically
+     even dlopened libraries will get the slots they desire.  */
+  .mmap_base = REG2S,
+  .mmap_end =  REG2E,
+  .max_page_size = 0x1000,
+  .page_size = 0x1000
+};
diff --git a/src/arch-ia64.c b/src/arch-ia64.c
new file mode 100644 (file)
index 0000000..2573d69
--- /dev/null
@@ -0,0 +1,533 @@
+/* Copyright (C) 2001, 2002, 2003, 2004, 2009 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <locale.h>
+#include <error.h>
+#include <argp.h>
+#include <stdlib.h>
+
+#include "prelink.h"
+#include "fptr.h"
+
+static int
+ia64_adjust_dyn (DSO *dso, int n, GElf_Dyn *dyn, GElf_Addr start,
+                GElf_Addr adjust)
+{
+  if (dyn->d_tag == DT_IA_64_PLT_RESERVE)
+    {
+      int sec = addr_to_sec (dso, dyn->d_un.d_ptr);
+      Elf64_Addr data;
+
+      if (sec != -1)
+       {
+         data = read_ule64 (dso, dyn->d_un.d_ptr + 8);
+
+         /* If .got[1] points to .plt + 0x30, it needs to be adjusted.  */
+         if (data && data >= start)
+           {
+             int i;
+
+             for (i = 1; i < dso->ehdr.e_shnum; i++)
+               if (data == dso->shdr[i].sh_addr + 0x30
+                   && dso->shdr[i].sh_type == SHT_PROGBITS
+                   && strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                      dso->shdr[i].sh_name), ".plt") == 0)
+                 {
+                   write_le64 (dso, dyn->d_un.d_ptr + 8, data + adjust);
+                   break;
+                 }
+           }
+       }
+
+      if (dyn->d_un.d_ptr >= start)
+       dyn->d_un.d_ptr += adjust;
+      return 1;
+    }
+
+  return 0;
+}
+
+static int
+ia64_adjust_rel (DSO *dso, GElf_Rel *rel, GElf_Addr start,
+                GElf_Addr adjust)
+{
+  error (0, 0, "%s: IA-64 doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+ia64_adjust_rela (DSO *dso, GElf_Rela *rela, GElf_Addr start,
+                 GElf_Addr adjust)
+{
+  if ((GELF_R_TYPE (rela->r_info) & ~3) == R_IA64_REL32MSB
+      && rela->r_addend >= start)
+    {
+      rela->r_addend += adjust;
+      switch (GELF_R_TYPE (rela->r_info) & 3)
+       {
+       case 0: write_be32 (dso, rela->r_offset, rela->r_addend); break;
+       case 1: write_le32 (dso, rela->r_offset, rela->r_addend); break;
+       case 2: write_be64 (dso, rela->r_offset, rela->r_addend); break;
+       case 3: write_le64 (dso, rela->r_offset, rela->r_addend); break;
+       }
+    }
+  else if ((GELF_R_TYPE (rela->r_info) & ~1) == R_IA64_IPLTMSB)
+    {
+      GElf_Addr val, gp;
+
+      if (GELF_R_TYPE (rela->r_info) & 1)
+       {
+         val = read_ule64 (dso, rela->r_offset);
+         gp = read_ule64 (dso, rela->r_offset + 8);
+       }
+      else
+       {
+         val = read_ube64 (dso, rela->r_offset);
+         gp = read_ube64 (dso, rela->r_offset + 8);
+       }
+      if (gp == dso->info[DT_PLTGOT])
+       {
+         if (val >= start)
+           val += adjust;
+         if (gp >= start)
+           gp += adjust;
+       }
+      if (GELF_R_TYPE (rela->r_info) & 1)
+       {
+         write_le64 (dso, rela->r_offset, val);
+         write_le64 (dso, rela->r_offset + 8, gp);
+       }
+      else
+       {
+         write_le64 (dso, rela->r_offset, val);
+         write_le64 (dso, rela->r_offset + 8, gp);
+       }
+    }
+  return 0;
+}
+
+static int
+ia64_prelink_rel (struct prelink_info *info, GElf_Rel *rel, GElf_Addr reladdr)
+{
+  error (0, 0, "%s: IA-64 doesn't support REL relocs", info->dso->filename);
+  return 1;
+}
+
+static int
+ia64_prelink_rela (struct prelink_info *info, GElf_Rela *rela,
+                  GElf_Addr relaaddr)
+{
+  DSO *dso;
+  GElf_Addr value;
+
+  if ((GELF_R_TYPE (rela->r_info) & ~3) == R_IA64_REL32MSB
+      || GELF_R_TYPE (rela->r_info) == R_IA64_NONE)
+    /* Fast path: nothing to do.  */
+    return 0;
+  dso = info->dso;
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  value += rela->r_addend;
+  if ((GELF_R_TYPE (rela->r_info) & ~3) == R_IA64_DIR32MSB)
+    {
+      /* Nothing to do.  */
+    }
+  else if ((GELF_R_TYPE (rela->r_info) & ~3) == R_IA64_PCREL32MSB)
+    {
+      value -= rela->r_offset & -16;
+    }
+  else if ((GELF_R_TYPE (rela->r_info) & ~3) == R_IA64_FPTR32MSB)
+    {
+      /* FIXME */
+    }
+  else if ((GELF_R_TYPE (rela->r_info) & ~1) == R_IA64_IPLTMSB)
+    {
+      GElf_Addr gp = info->resolveent->pltgot;
+
+      if (GELF_R_TYPE (rela->r_info) & 1)
+       {
+         write_le64 (dso, rela->r_offset, value);
+         write_le64 (dso, rela->r_offset + 8, gp);
+       }
+      else
+       {
+         write_be64 (dso, rela->r_offset, value);
+         write_be64 (dso, rela->r_offset + 8, gp);
+       }
+
+      return 0;
+    }
+  else
+    {
+      error (0, 0, "%s: Unknown ia64 relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+
+  switch (GELF_R_TYPE (rela->r_info) & 3)
+    {
+    case 0: write_be32 (dso, rela->r_offset, value); break;
+    case 1: write_le32 (dso, rela->r_offset, value); break;
+    case 2: write_be64 (dso, rela->r_offset, value); break;
+    case 3: write_le64 (dso, rela->r_offset, value); break;
+    }
+  return 0;
+}
+
+static int
+ia64_apply_conflict_rela (struct prelink_info *info, GElf_Rela *rela,
+                         char *buf, GElf_Addr dest_addr)
+{
+  if ((GELF_R_TYPE (rela->r_info) & ~1) == R_IA64_IPLTMSB)
+    {
+      GElf_Addr gp = 0;
+      int i;
+
+      for (i = 0; i < info->ent->ndepends; ++i)
+       if (info->ent->depends[i]->base <= rela->r_addend
+           && info->ent->depends[i]->end > rela->r_addend)
+         {
+           gp = info->ent->depends[i]->pltgot;
+           break;
+         }
+
+      if (i == info->ent->ndepends)
+       abort ();
+
+      if (GELF_R_TYPE (rela->r_info) & 1)
+       {
+         buf_write_le64 (buf, rela->r_addend);
+         buf_write_le64 (buf + 8, gp);
+       }
+      else
+       {
+         buf_write_be64 (buf, rela->r_addend);
+         buf_write_be64 (buf + 8, gp);
+       }
+      return 0;
+    }
+
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_IA64_DIR32MSB: buf_write_be32 (buf, rela->r_addend); break;
+    case R_IA64_DIR32LSB: buf_write_le32 (buf, rela->r_addend); break;
+    case R_IA64_DIR64MSB: buf_write_be64 (buf, rela->r_addend); break;
+    case R_IA64_DIR64LSB: buf_write_le64 (buf, rela->r_addend); break;
+    default:
+      abort ();
+    }
+  return 0;
+}
+
+static int
+ia64_apply_rel (struct prelink_info *info, GElf_Rel *rel, char *buf)
+{
+  error (0, 0, "%s: IA-64 doesn't support REL relocs", info->dso->filename);
+  return 1;
+}
+
+static int
+ia64_apply_rela (struct prelink_info *info, GElf_Rela *rela, char *buf)
+{
+  GElf_Addr value;
+
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  value += rela->r_addend;
+  if ((GELF_R_TYPE (rela->r_info) & ~3) == R_IA64_DIR32MSB)
+    {
+      /* Nothing to do.  */
+    }
+  else if ((GELF_R_TYPE (rela->r_info) & ~3) == R_IA64_PCREL32MSB)
+    {
+      value -= rela->r_offset & -16;
+    }
+  else if ((GELF_R_TYPE (rela->r_info) & ~3) == R_IA64_FPTR32MSB)
+    {
+      /* FIXME */
+    }
+  else if ((GELF_R_TYPE (rela->r_info) & ~1) == R_IA64_IPLTMSB)
+    {
+      GElf_Addr gp = info->resolveent->pltgot;
+
+      if (GELF_R_TYPE (rela->r_info) & 1)
+       {
+         buf_write_le64 (buf, value);
+         buf_write_le64 (buf + 8, gp);
+       }
+      else
+       {
+         buf_write_be64 (buf, value);
+         buf_write_be64 (buf + 8, gp);
+       }
+      return 0;
+    }
+  else
+    return 1;
+
+  switch (GELF_R_TYPE (rela->r_info) & 3)
+    {
+    case 0: buf_write_be32 (buf, value); break;
+    case 1: buf_write_le32 (buf, value); break;
+    case 2: buf_write_be64 (buf, value); break;
+    case 3: buf_write_le64 (buf, value); break;
+    }
+  return 0;
+}
+
+static int
+ia64_prelink_conflict_rel (DSO *dso, struct prelink_info *info, GElf_Rel *rel,
+                          GElf_Addr reladdr)
+{
+  error (0, 0, "%s: IA-64 doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+ia64_prelink_conflict_rela (DSO *dso, struct prelink_info *info,
+                           GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  GElf_Addr value;
+  struct prelink_conflict *conflict;
+  GElf_Rela *ret;
+
+  if ((GELF_R_TYPE (rela->r_info) & ~3) == R_IA64_REL32MSB
+      || GELF_R_TYPE (rela->r_info) == R_IA64_NONE
+      || info->dso == dso)
+    /* Fast path: nothing to do.  */
+    return 0;
+  conflict = prelink_conflict (info, GELF_R_SYM (rela->r_info),
+                              GELF_R_TYPE (rela->r_info));
+  if (conflict == NULL)
+    return 0;
+  else if (conflict->ifunc)
+    {
+      error (0, 0, "%s: STT_GNU_IFUNC not handled on IA-64 yet",
+            dso->filename);
+      return 1;
+    }
+  value = conflict_lookup_value (conflict);
+  ret = prelink_conflict_add_rela (info);
+  if (ret == NULL)
+    return 1;
+  ret->r_offset = rela->r_offset;
+  ret->r_info = GELF_R_INFO (0, GELF_R_TYPE (rela->r_info));
+  if ((GELF_R_TYPE (rela->r_info) & ~3) == R_IA64_DIR32MSB
+      || (GELF_R_TYPE (rela->r_info) & ~1) == R_IA64_IPLTMSB)
+    {
+      ret->r_addend = value + rela->r_addend;
+      return 0;
+    }
+  else if ((GELF_R_TYPE (rela->r_info) & ~3) == R_IA64_PCREL32MSB)
+    {
+      ret->r_addend = value + rela->r_addend - (rela->r_offset & -16);
+      ret->r_info = GELF_R_INFO (0, GELF_R_TYPE (rela->r_info)
+                                   + R_IA64_DIR32MSB - R_IA64_PCREL32MSB);
+      return 0;
+    }
+  else if (GELF_R_TYPE (rela->r_info) == R_IA64_COPY)
+    {
+      error (0, 0, "R_IA64_COPY should not be present in shared libraries");
+      return 1;
+    }
+  error (0, 0, "%s: Unknown ia64 relocation type %d", dso->filename,
+        (int) GELF_R_TYPE (rela->r_info));
+  return 1;
+}
+
+static int
+ia64_rel_to_rela (DSO *dso, GElf_Rel *rel, GElf_Rela *rela)
+{
+  error (0, 0, "%s: IA-64 doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+ia64_need_rel_to_rela (DSO *dso, int first, int last)
+{
+  return 0;
+}
+
+static GElf_Addr
+ia64_create_opd (struct prelink_info *info, int first, int last, int plt)
+{
+  Elf_Data *d;
+  Elf_Scn *scn;
+  Elf64_Rela *rela, *relaend;
+  DSO *dso = info->dso;
+  int sec;
+
+  if (opd_init (info))
+    return -1;
+
+  if (plt)
+    info->ent->opd->plt_start = dso->shdr[dso->shdr[plt].sh_info].sh_addr;
+  else
+    info->ent->opd->plt_start = dso->shdr[dso->dynamic].sh_addr;
+  sec = first;
+  while (sec <= last)
+    {
+      d = NULL;
+      scn = dso->scn[sec++];
+      while ((d = elf_getdata (scn, d)) != NULL)
+       {
+         rela = (Elf64_Rela *) d->d_buf;
+         relaend = rela + d->d_size / sizeof (Elf64_Rela);
+         for (; rela < relaend; rela++)
+           if ((ELF64_R_TYPE (rela->r_info) & ~3) == R_IA64_FPTR32MSB
+               && opd_add (info, ELF64_R_SYM (rela->r_info),
+                           R_IA64_FPTR64LSB))
+             return -1;
+       }
+    }
+
+  sec = first;
+  while (sec)
+    {
+      d = NULL;
+      if (sec == plt)
+       break;
+      scn = dso->scn[sec++];
+      if (sec == last + 1)
+       sec = plt;
+      while ((d = elf_getdata (scn, d)) != NULL)
+       {
+         rela = (Elf64_Rela *) d->d_buf;
+         relaend = rela + d->d_size / sizeof (Elf64_Rela);
+         for (; rela < relaend; rela++)
+           if ((ELF64_R_TYPE (rela->r_info) & ~1) == R_IA64_IPLTMSB)
+             opd_note_plt (info, ELF64_R_SYM (rela->r_info), R_IA64_IPLTLSB,
+                           rela->r_offset);
+       }
+    }
+
+  return opd_size (info, 16);
+}
+
+static int
+ia64_arch_prelink (struct prelink_info *info)
+{
+  DSO *dso;
+  int plt = -1, got = -1, i;
+  const char *name;
+
+  /* Write address of .plt + 0x30 into .got[1].
+     .plt + 0x30 is what .IA_64.pltoff[0] contains unless prelinking.  */
+
+  dso = info->dso;
+  for (i = 1; i < dso->ehdr.e_shnum; i++)
+    if (dso->shdr[i].sh_type == SHT_PROGBITS)
+      {
+       name = strptr (dso, dso->ehdr.e_shstrndx, dso->shdr[i].sh_name);
+       if (! strcmp (name, ".got"))
+         {
+           if (got != -1)
+             {
+               error (0, 0, "%s: More than one .got section", dso->filename);
+               return 1;
+             }
+           got = i;
+         }
+       else if (! strcmp (name, ".plt"))
+         {
+           if (plt != -1)
+             {
+               error (0, 0, "%s: More than one .plt section", dso->filename);
+               return 1;
+             }
+           plt = i;
+         }
+      }
+
+  if (plt == -1)
+    return 0;
+
+  if (got == -1)
+    {
+      error (0, 0, "%s: Has .plt section but not .got section", dso->filename);
+      return 1;
+    }
+
+  write_le64 (dso, dso->shdr[got].sh_addr + 8, dso->shdr[plt].sh_addr + 0x30);
+  return 0;
+}
+
+static int
+ia64_reloc_size (int reloc_type)
+{
+  if ((reloc_type & ~1) == R_IA64_IPLTMSB)
+    return 16;
+  return (reloc_type & 2) ? 8 : 4;
+}
+
+static int
+ia64_reloc_class (int reloc_type)
+{
+  switch (reloc_type)
+    {
+    case R_IA64_IPLTLSB:
+    case R_IA64_IPLTMSB:
+      return RTYPE_CLASS_PLT;
+    default: return RTYPE_CLASS_VALID;
+    }
+}
+
+PL_ARCH = {
+  .name = "IA-64",
+  .class = ELFCLASS64,
+  .machine = EM_IA_64,
+  .alternate_machine = { EM_NONE },
+  .R_JMP_SLOT = R_IA64_IPLTLSB,
+  .R_COPY = -1,
+  .R_RELATIVE = R_IA64_REL64LSB,
+  .rtype_class_valid = RTYPE_CLASS_VALID,
+  .dynamic_linker = "/lib/ld-linux-ia64.so.2",
+  .adjust_dyn = ia64_adjust_dyn,
+  .adjust_rel = ia64_adjust_rel,
+  .adjust_rela = ia64_adjust_rela,
+  .prelink_rel = ia64_prelink_rel,
+  .prelink_rela = ia64_prelink_rela,
+  .prelink_conflict_rel = ia64_prelink_conflict_rel,
+  .prelink_conflict_rela = ia64_prelink_conflict_rela,
+  .apply_conflict_rela = ia64_apply_conflict_rela,
+  .apply_rel = ia64_apply_rel,
+  .apply_rela = ia64_apply_rela,
+  .rel_to_rela = ia64_rel_to_rela,
+  .need_rel_to_rela = ia64_need_rel_to_rela,
+  .create_opd = ia64_create_opd,
+  .reloc_size = ia64_reloc_size,
+  .reloc_class = ia64_reloc_class,
+  .max_reloc_size = 16,
+  .arch_prelink = ia64_arch_prelink,
+  /* Although TASK_UNMAPPED_BASE is 0x2000000000000000, we leave some
+     area so that mmap of /etc/ld.so.cache and ld.so's malloc
+     does not take some library's VA slot.
+     Also, if this guard area isn't too small, typically
+     even dlopened libraries will get the slots they desire.  */
+  .mmap_base = 0x2000000010000000LL,
+  .mmap_end =  0x4000000000000000LL,
+  .max_page_size = 0x10000,
+  /* The kernel can be configured for 4K, 8K, 16K and 64K,
+     but most kernels have at least 8K.  */
+  .page_size = 0x02000
+};
diff --git a/src/arch-mips.c b/src/arch-mips.c
new file mode 100644 (file)
index 0000000..3e39f03
--- /dev/null
@@ -0,0 +1,1041 @@
+/* Copyright (C) 2006 CodeSourcery
+   Written by Richard Sandiford <richard@codesourcery.com>, 2006
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+/* GENERAL NOTES
+
+   The psABI defines R_MIPS_REL32 as A - EA + S, where the value of EA
+   depends on the symbol index.  If the index is less than DT_MIPS_GOTSYM,
+   EA is the symbol's st_value "plus displacement".  If the index is greater
+   than or equal to DT_MIPS_GOTSYM, EA is the original value of the
+   associated GOT entry.
+
+   However, glibc's dynamic linker implements a different definition.
+   If the index is less than DT_MIPS_GOTSYM, the dynamic linker adds the
+   symbol's st_value and the base address to the addend.  If the index
+   is greater than or equal to DT_MIPS_GOTSYM, the dynamic linker adds
+   the final symbol value to the addend.
+
+   MIPS GOTs are divided into three parts:
+
+     - Reserved entries (of which GNU objects have 2)
+     - Local entries
+     - Global entries
+
+   DT_MIPS_LOCAL_GOTNO gives the total number of reserved and local
+   entries.  The local entries all hold virtual addresses and the
+   dynamic linker will add the base address to each one.
+
+   Unlike most other architectures, the MIPS ABI does not use
+   relocations to initialize the global GOT entries.  Instead, global
+   GOT entry X is mapped to dynamic symbol DT_MIPS_GOTSYM + X, and there
+   are a total of DT_MIPS_SYMTABNO - DT_MIPS_GOTSYM global GOT entries.
+
+   The interpretation of a global GOT entry depends on the symbol entry
+   and the initial GOT contents.  The psABI lists the following cases:
+
+      st_shndx    st_type     st_value      initial GOT value
+      --------    -------     --------      -----------------
+   A: SHN_UNDEF   STT_FUNC    0             st_value (== 0) / QS
+   B: SHN_UNDEF   STT_FUNC    stub address  st_value / QS
+   C: SHN_UNDEF   all others  0             st_value (== 0) / QS
+   D: SHN_COMMON  any         alignment     0 / QS
+   E: all others  STT_FUNC    value         st_value / stub address
+   F: all others  all others  value         st_value
+
+   (wording slightly modified from the psABI table).  Here, QS denotes
+   Quickstart values.
+
+   The dynamic linker treats each case as follows:
+
+   - [A, B when not binding lazily, C, D, E when not binding lazily, F]
+     Resolve the symbol and store its value in the GOT.
+
+   - [B when binding lazily] Set the GOT entry to the st_value plus
+     the base address.
+
+   - [E when binding lazily] If the GOT entry is different from the st_value,
+     add the base addreess to the GOT entry.  Otherwise resolve the symbol
+     and store its value in the GOT (as for A, C, etc).
+
+   As the table shows, we can install Quickstart values for types A-D.
+   Installing Quickstart values for type F should be a no-op, because the
+   GOT should already hold the desired value.  Installing Quickstart values
+   for type E would either be a no-op (if the GOT entry already contains
+   st_value) or would lose the address of the lazy binding stub.  */
+
+#include <config.h>
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <locale.h>
+#include <error.h>
+#include <argp.h>
+#include <stdlib.h>
+
+#include "prelink.h"
+#include "layout.h"
+
+/* The thread pointer points 0x7000 past the first static TLS block.  */
+#define TLS_TP_OFFSET 0x7000
+
+/* Dynamic thread vector pointers point 0x8000 past the start of each
+   TLS block.  */
+#define TLS_DTV_OFFSET 0x8000
+
+/* The number of reserved entries at the beginning of the GOT.
+   The dynamic linker points entry 0 to the resolver function
+   and entry 1 to the link_map.  */
+#define RESERVED_GOTNO 2
+
+/* A structure for iterating over local GOT entries.  */
+struct mips_local_got_iterator {
+  /* The DSO containing the GOT.  */
+  DSO *dso;
+
+  /* The size of a GOT entry.  */
+  GElf_Word entry_size;
+
+  /* The index of the current GOT entry.  */
+  GElf_Word got_index;
+
+  /* A pointer to the current GOT entry.  */
+  unsigned char *got_entry;
+
+  /* True if we failed to read an entry correctly.  */
+  int failed;
+
+  /* Used internally to obtain GOT_ENTRY.  */
+  struct data_iterator got_iterator;
+};
+
+/* Set up LGI to iterate over DSO's local GOT.  The caller should use
+   mips_get_local_got_entry to read the first entry.  */
+
+static inline void
+mips_init_local_got_iterator (struct mips_local_got_iterator *lgi, DSO *dso)
+{
+  lgi->dso = dso;
+  lgi->entry_size = gelf_fsize (dso->elf, ELF_T_WORD, 1, EV_CURRENT);
+  lgi->got_index = RESERVED_GOTNO - 1;
+  lgi->failed = 0;
+  init_data_iterator (&lgi->got_iterator, dso,
+                     dso->info[DT_PLTGOT]
+                     + (lgi->got_index + 1) * lgi->entry_size);
+}
+
+/* Return true if LGI has not reached the end of the GOT and if the next
+   entry can be accessed.  When returning true, use LGI's fields to
+   describe the next entry.  */
+
+static inline int
+mips_get_local_got_entry (struct mips_local_got_iterator *lgi)
+{
+  lgi->got_index++;
+  if (lgi->got_index >= lgi->dso->info_DT_MIPS_LOCAL_GOTNO)
+    return 0;
+
+  lgi->got_entry = get_data_from_iterator (&lgi->got_iterator,
+                                          lgi->entry_size);
+  if (lgi->got_entry == NULL)
+    {
+      error (0, 0, "%s: Malformed local GOT\n", lgi->dso->filename);
+      lgi->failed = 1;
+      return 0;
+    }
+
+  return 1;
+}
+
+/* A structure for iterating over global GOT entries.  */
+struct mips_global_got_iterator {
+  /* The DSO containing the GOT.  */
+  DSO *dso;
+
+  /* The size of a GOT entry.  */
+  GElf_Word entry_size;
+
+  /* The virtual address of the current GOT entry.  */
+  GElf_Addr got_addr;
+
+  /* The index of the associated entry in the dynamic symbol table.  */
+  GElf_Word sym_index;
+
+  /* A pointer to the current GOT entry.  */
+  unsigned char *got_entry;
+
+  /* The symbol associated with the current GOT entry.  */
+  GElf_Sym sym;
+
+  /* True if we failed to read an entry correctly.  */
+  int failed;
+
+  /* Used internally to obtain GOT_ENTRY and SYM.  */
+  struct data_iterator got_iterator;
+  struct data_iterator sym_iterator;
+};
+
+/* Set up GGI to iterate over DSO's global GOT.  The caller should use
+   mips_get_global_got_entry to read the first entry.  */
+
+static inline void
+mips_init_global_got_iterator (struct mips_global_got_iterator *ggi, DSO *dso)
+{
+  GElf_Word sym_size;
+
+  ggi->dso = dso;
+  ggi->entry_size = gelf_fsize (dso->elf, ELF_T_WORD, 1, EV_CURRENT);
+  ggi->got_addr = (dso->info[DT_PLTGOT]
+                  + (dso->info_DT_MIPS_LOCAL_GOTNO - 1) * ggi->entry_size);
+  ggi->sym_index = dso->info_DT_MIPS_GOTSYM - 1;
+  ggi->failed = 0;
+
+  sym_size = gelf_fsize (dso->elf, ELF_T_SYM, 1, EV_CURRENT);
+  init_data_iterator (&ggi->got_iterator, dso,
+                     ggi->got_addr + ggi->entry_size);
+  init_data_iterator (&ggi->sym_iterator, dso,
+                     dso->info[DT_SYMTAB] + (ggi->sym_index + 1) * sym_size);
+}
+
+/* Return true if GGI has not reached the end of the GOT and if the next
+   entry can be accessed.  When returning true, use GGI's fields to
+   describe the next entry.  */
+
+static inline int
+mips_get_global_got_entry (struct mips_global_got_iterator *ggi)
+{
+  ggi->sym_index++;
+  ggi->got_addr += ggi->entry_size;
+  if (ggi->sym_index >= ggi->dso->info_DT_MIPS_SYMTABNO)
+    return 0;
+
+  ggi->got_entry = get_data_from_iterator (&ggi->got_iterator,
+                                          ggi->entry_size);
+  if (ggi->got_entry == NULL
+      || !get_sym_from_iterator (&ggi->sym_iterator, &ggi->sym))
+    {
+      error (0, 0, "%s: Malformed global GOT\n", ggi->dso->filename);
+      ggi->failed = 1;
+      return 0;
+    }
+
+  return 1;
+}
+
+static int
+mips_arch_adjust (DSO *dso, GElf_Addr start, GElf_Addr adjust)
+{
+  struct mips_local_got_iterator lgi;
+  struct mips_global_got_iterator ggi;
+  GElf_Addr value;
+
+  if (dso->info[DT_PLTGOT] == 0)
+    return 0;
+
+  /* Adjust every local GOT entry by ADJUST.  Every adjustment moves
+     the code and data, so we do not need to check START here.  */
+  mips_init_local_got_iterator (&lgi, dso);
+  while (mips_get_local_got_entry (&lgi))
+    {
+      value = buf_read_une32 (dso, lgi.got_entry);
+      buf_write_ne32 (dso, lgi.got_entry, value + adjust);
+    }
+
+  /* Adjust every global GOT entry.  Referring to the table above:
+
+     For [A, B, C]: Adjust the GOT entry if it contains st_value
+     and if the symbol's value will be adjusted.
+
+     For [D]: Do nothing.  SHN_COMMON entries never need adjusting.
+
+     For [E, F]: Adjust the GOT entry if it does not contain st_value
+     -- in other words, if it is a type E entry that points to a lazy
+     binding stub -- or if the symbol's value will also be adjusted.  */
+  mips_init_global_got_iterator (&ggi, dso);
+  while (mips_get_global_got_entry (&ggi))
+    {
+      value = buf_read_une32 (dso, ggi.got_entry);
+      if (ggi.sym.st_shndx != SHN_COMMON
+         && value >= start
+         && (value == ggi.sym.st_value
+             ? adjust_symbol_p (dso, &ggi.sym)
+             : ggi.sym.st_shndx != SHN_UNDEF))
+       buf_write_ne32 (dso, ggi.got_entry, value + adjust);
+    }
+
+  return lgi.failed || ggi.failed;
+}
+
+static int
+mips_adjust_dyn (DSO *dso, int n, GElf_Dyn *dyn, GElf_Addr start,
+                GElf_Addr adjust)
+{
+  switch (dyn->d_tag)
+    {
+    case DT_MIPS_TIME_STAMP:
+    case DT_MIPS_ICHECKSUM:
+    case DT_MIPS_IVERSION:
+    case DT_MIPS_CONFLICT:
+    case DT_MIPS_CONFLICTNO:
+    case DT_MIPS_LIBLIST:
+    case DT_MIPS_LIBLISTNO:
+      error (0, 0, "%s: File contains QuickStart information", dso->filename);
+      return 1;
+
+    case DT_MIPS_BASE_ADDRESS:
+    case DT_MIPS_RLD_MAP:
+    case DT_MIPS_OPTIONS:
+      if (dyn->d_un.d_ptr >= start)
+       dyn->d_un.d_ptr += adjust;
+      return 1;
+
+    case DT_MIPS_LOCAL_GOTNO:
+    case DT_MIPS_UNREFEXTNO:
+    case DT_MIPS_SYMTABNO:
+    case DT_MIPS_HIPAGENO:
+    case DT_MIPS_GOTSYM:
+      /* We don't change the layout of the GOT or symbol table.  */
+      return 1;
+
+    case DT_MIPS_RLD_VERSION:
+    case DT_MIPS_FLAGS:
+      /* We don't change these properties.  */
+      return 1;
+    }
+  return 0;
+}
+
+/* Read the addend for a relocation in DSO.  If RELA is nonnull,
+   use its r_addend, otherwise read a 32-bit in-place addend from
+   address R_OFFSET.  */
+
+static inline uint32_t
+mips_read_addend (DSO *dso, GElf_Addr r_offset, GElf_Rela *rela)
+{
+  return rela ? rela->r_addend : read_une32 (dso, r_offset);
+}
+
+/* Like mips_read_addend, but change the addend to VALUE.  */
+
+static inline void
+mips_write_addend (DSO *dso, GElf_Addr r_offset, GElf_Rela *rela,
+                  uint32_t value)
+{
+  if (rela)
+    rela->r_addend = (int32_t) value;
+  else
+    write_ne32 (dso, r_offset, value);
+}
+
+/* There is a relocation of type R_INFO against address R_OFFSET in DSO.
+   Adjust it so that virtual addresses >= START are increased by ADJUST
+   If the relocation is in a RELA section, RELA points to the relocation,
+   otherwise it is null.  */
+
+static int
+mips_adjust_reloc (DSO *dso, GElf_Addr r_offset, GElf_Xword r_info,
+                  GElf_Addr start, GElf_Addr adjust, GElf_Rela *rela)
+{
+  GElf_Addr value;
+  GElf_Word r_sym;
+
+  if (GELF_R_TYPE (r_info) == R_MIPS_REL32)
+    {
+      r_sym = GELF_R_SYM (r_info);
+      if (r_sym < dso->info_DT_MIPS_GOTSYM)
+       {
+         /* glibc's dynamic linker adds the symbol's st_value and the
+            base address to the addend.  It therefore treats all symbols
+            as being relative, even if they would normally be considered
+            absolute.  For example, the special null symbol should always
+            have the value zero, even when the base address is nonzero,
+            but R_MIPS_REL32 relocations against the null symbol must
+            nevertheles be adjusted as if that symbol were relative.
+            The same would apply to SHN_ABS symbols too.
+
+            Thus the result of the relocation calculation must always
+            be adjusted by ADJUST.  (We do not need to check START because
+            every adjustment requested by the caller will affect all
+            legitimate local relocation values.)  This means that we
+            should add ADJUST to the addend if and only if the symbol's
+            value is not being adjusted.
+
+            In general, we can only check whether a symbol's value is
+            being adjusted by reading its entry in the dynamic symbol
+            table and then querying adjust_symbol_p.  However, this
+            generality is fortunately not needed.  Modern versions
+            of binutils will never generate R_MIPS_REL32 relocations
+            against symbols in the range [1, DT_MIPS_GOTSYM), so we
+            only need to handle relocations against the null symbol.  */
+         if (r_sym != 0)
+           {
+             error (0, 0, "%s: The prelinker does not support R_MIPS_REL32"
+                    " relocs against local symbols", dso->filename);
+             return 1;
+           }
+         value = mips_read_addend (dso, r_offset, rela);
+         mips_write_addend (dso, r_offset, rela, value + adjust);
+       }
+    }
+  return 0;
+}
+
+static int
+mips_adjust_rel (DSO *dso, GElf_Rel *rel, GElf_Addr start, GElf_Addr adjust)
+{
+  return mips_adjust_reloc (dso, rel->r_offset, rel->r_info,
+                           start, adjust, NULL);
+}
+
+static int
+mips_adjust_rela (DSO *dso, GElf_Rela *rela, GElf_Addr start, GElf_Addr adjust)
+{
+  return mips_adjust_reloc (dso, rela->r_offset, rela->r_info,
+                           start, adjust, rela);
+}
+
+/* Calculate relocation RELA as A + VALUE and store the result in DSO.  */
+
+static void
+mips_prelink_32bit_reloc (DSO *dso, GElf_Rela *rela, GElf_Addr value)
+{
+  assert (rela != NULL);
+  write_ne32 (dso, rela->r_offset, value + rela->r_addend);
+}
+
+/* There is a relocation of type R_INFO against address R_OFFSET in DSO.
+   Prelink the relocation field, using INFO to look up symbol values.
+   If the relocation is in a RELA section, RELA points to the relocation,
+   otherwise it is null.  */
+
+static int
+mips_prelink_reloc (struct prelink_info *info, GElf_Addr r_offset,
+                   GElf_Xword r_info, GElf_Rela *rela)
+{
+  DSO *dso;
+  GElf_Addr value;
+  GElf_Word r_sym;
+  int r_type;
+
+  dso = info->dso;
+  r_sym = GELF_R_SYM (r_info);
+  r_type = GELF_R_TYPE (r_info);
+  switch (r_type)
+    {
+    case R_MIPS_NONE:
+      break;
+
+    case R_MIPS_REL32:
+      /* An in-place R_MIPS_REL32 relocation against symbol 0 needs no
+        adjustment.  */
+      if (rela != NULL || GELF_R_SYM (r_info) != 0)
+       {
+         value = info->resolve (info, r_sym, r_type);
+         mips_prelink_32bit_reloc (dso, rela, value);
+       }
+      break;
+
+    case R_MIPS_GLOB_DAT:
+      write_ne32 (dso, r_offset, info->resolve (info, r_sym, r_type));
+      break;
+
+    case R_MIPS_TLS_DTPMOD32:
+      if (dso->ehdr.e_type == ET_EXEC)
+       {
+         error (0, 0, "%s: R_MIPS_TLS_DTPMOD32 reloc in executable?",
+                dso->filename);
+         return 1;
+       }
+      /* These relocations will be resolved using a conflict.  We need
+        not change the field value here.  */
+      break;
+
+    case R_MIPS_TLS_DTPREL32:
+      value = info->resolve (info, r_sym, r_type);
+      mips_prelink_32bit_reloc (dso, rela, value - TLS_DTV_OFFSET);
+      break;
+
+    case R_MIPS_TLS_TPREL32:
+      /* Relocations in a shared library will be resolved using a conflict.
+        We need not change the relocation field here.  */
+      if (dso->ehdr.e_type == ET_EXEC)
+       {
+         value = info->resolve (info, r_sym, r_type);
+         value += info->resolvetls->offset - TLS_TP_OFFSET;
+         mips_prelink_32bit_reloc (dso, rela, value);
+       }
+      break;
+
+    default:
+      error (0, 0, "%s: Unknown MIPS relocation type %d",
+            dso->filename, (int) GELF_R_TYPE (r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+mips_prelink_rel (struct prelink_info *info, GElf_Rel *rel, GElf_Addr reladdr)
+{
+  DSO *dso;
+
+  /* Convert R_MIPS_REL32 relocations against global symbols into
+     R_MIPS_GLOB_DAT if the addend is zero.  */
+  dso = info->dso;
+  if (GELF_R_TYPE (rel->r_info) == R_MIPS_REL32
+      && GELF_R_SYM (rel->r_info) >= dso->info_DT_MIPS_GOTSYM
+      && read_une32 (dso, rel->r_offset) == 0)
+    {
+      rel->r_info = GELF_R_INFO (GELF_R_SYM (rel->r_info), R_MIPS_GLOB_DAT);
+      write_ne32 (dso, rel->r_offset,
+                 info->resolve (info, GELF_R_SYM (rel->r_info),
+                                GELF_R_TYPE (rel->r_info)));
+      return 2;
+    }
+  return mips_prelink_reloc (info, rel->r_offset, rel->r_info, NULL);
+}
+
+static int
+mips_prelink_rela (struct prelink_info *info, GElf_Rela *rela,
+                  GElf_Addr relaaddr)
+{
+  return mips_prelink_reloc (info, rela->r_offset, rela->r_info, rela);
+}
+
+/* CONFLICT is a conflict returned by prelink_conflict for a symbol
+   belonging to DSO.  Set *TLS_OUT to the associated TLS information.
+   Return 1 on failure.  */
+
+static int
+mips_get_tls (DSO *dso, struct prelink_conflict *conflict,
+             struct prelink_tls **tls_out)
+{
+  if (conflict->reloc_class != RTYPE_CLASS_TLS
+      || conflict->lookup.tls == NULL)
+    {
+      error (0, 0, "%s: R_MIPS_TLS not resolving to STT_TLS symbol",
+            dso->filename);
+      return 1;
+    }
+
+  *tls_out = conflict->lookup.tls;
+  return 0;
+}
+
+/* There is a relocation of type R_INFO against address R_OFFSET in DSO.
+   See if the relocation field must be adjusted by a conflict when DSO
+   is used in the context described by INFO.  Add a conflict entry if so.
+   If the relocation is in a RELA section, RELA points to the relocation,
+   otherwise it is null.  */
+
+static int
+mips_prelink_conflict_reloc (DSO *dso, struct prelink_info *info,
+                            GElf_Addr r_offset, GElf_Xword r_info,
+                            GElf_Rela *rela)
+{
+  GElf_Addr value;
+  struct prelink_conflict *conflict;
+  struct prelink_tls *tls = NULL;
+  GElf_Rela *entry;
+
+  if (info->dso == dso)
+    return 0;
+
+  conflict = prelink_conflict (info, GELF_R_SYM (r_info),
+                              GELF_R_TYPE (r_info));
+  if (conflict == NULL)
+    {
+      switch (GELF_R_TYPE (r_info))
+       {
+       case R_MIPS_TLS_DTPMOD32:
+       case R_MIPS_TLS_TPREL32:
+         tls = info->curtls;
+         if (tls == NULL)
+           return 0;
+         /* A relocation against symbol 0.  A shared library cannot
+            know what the final module IDs or TP-relative offsets are,
+            so the executable must always have a conflict for them.  */
+         value = 0;
+         break;
+       default:
+         return 0;
+       }
+    }
+  else if (conflict->ifunc)
+    {
+      error (0, 0, "%s: STT_GNU_IFUNC not handled on MIPS yet",
+            dso->filename);
+      return 1;
+    }
+  else
+    {
+      /* DTPREL32 relocations just involve the symbol value; no other
+        TLS information is needed.  Ignore conflicts created from a
+        lookup of type RTYPE_CLASS_TLS if no real conflict exists.  */
+      if (GELF_R_TYPE (r_info) == R_MIPS_TLS_DTPREL32
+         && conflict->lookup.tls == conflict->conflict.tls
+         && conflict->lookupval == conflict->conflictval)
+       return 0;
+
+      value = conflict_lookup_value (conflict);
+    }
+  /* VALUE now contains the final symbol value.  Change it to the
+     value we want to store at R_OFFSET.  */
+  switch (GELF_R_TYPE (r_info))
+    {
+    case R_MIPS_REL32:
+      value += mips_read_addend (dso, r_offset, rela);
+      break;
+
+    case R_MIPS_GLOB_DAT:
+      break;
+
+    case R_MIPS_TLS_DTPMOD32:
+      if (conflict != NULL && mips_get_tls (dso, conflict, &tls) == 1)
+       return 1;
+      value = tls->modid;
+      break;
+
+    case R_MIPS_TLS_DTPREL32:
+      value += mips_read_addend (dso, r_offset, rela) - TLS_DTV_OFFSET;
+      break;
+
+    case R_MIPS_TLS_TPREL32:
+      if (conflict != NULL && mips_get_tls (dso, conflict, &tls) == 1)
+       return 1;
+      value += (mips_read_addend (dso, r_offset, rela)
+               + tls->offset - TLS_TP_OFFSET);
+      break;
+
+    default:
+      error (0, 0, "%s: Unknown MIPS relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (r_info));
+      return 1;
+    }
+  /* Create and initialize a conflict entry.  */
+  entry = prelink_conflict_add_rela (info);
+  if (entry == NULL)
+    return 1;
+  entry->r_addend = (int32_t) value;
+  entry->r_offset = r_offset;
+  entry->r_info = GELF_R_INFO (0, R_MIPS_REL32);
+  return 0;
+}
+
+static int
+mips_prelink_conflict_rel (DSO *dso, struct prelink_info *info,
+                          GElf_Rel *rel, GElf_Addr reladdr)
+{
+  return mips_prelink_conflict_reloc (dso, info, rel->r_offset,
+                                     rel->r_info, NULL);
+}
+
+static int
+mips_prelink_conflict_rela (DSO *dso, struct prelink_info *info,
+                           GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  return mips_prelink_conflict_reloc (dso, info, rela->r_offset,
+                                     rela->r_info, rela);
+}
+
+static int
+mips_arch_prelink_conflict (DSO *dso, struct prelink_info *info)
+{
+  struct mips_global_got_iterator ggi;
+  GElf_Addr value;
+  struct prelink_conflict *conflict;
+  GElf_Rela *entry;
+
+  if (info->dso == dso || dso->info[DT_PLTGOT] == 0)
+    return 0;
+
+  /* Add a conflict for every global GOT entry that does not hold the
+     right value, either because of a conflict, or because the DSO has
+     a lazy binding stub for a symbol that it also defines.  */
+  mips_init_global_got_iterator (&ggi, dso);
+  while (mips_get_global_got_entry (&ggi))
+    {
+      conflict = prelink_conflict (info, ggi.sym_index, R_MIPS_REL32);
+      if (conflict != NULL)
+       value = conflict_lookup_value (conflict);
+      else if (ggi.sym.st_shndx != SHN_UNDEF
+              && ggi.sym.st_shndx != SHN_COMMON)
+       value = ggi.sym.st_value;
+      else
+       continue;
+      if (buf_read_une32 (dso, ggi.got_entry) != value)
+       {
+         entry = prelink_conflict_add_rela (info);
+         if (entry == NULL)
+           return 1;
+         entry->r_addend = (int32_t) value;
+         entry->r_offset = ggi.got_addr;
+         entry->r_info = GELF_R_INFO (0, R_MIPS_REL32);
+       }
+    }
+
+  return ggi.failed;
+}
+
+static int
+mips_apply_conflict_rela (struct prelink_info *info, GElf_Rela *rela,
+                         char *buf, GElf_Addr dest_addr)
+{
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_MIPS_REL32:
+      buf_write_ne32 (info->dso, buf, rela->r_addend);
+      break;
+
+    default:
+      abort ();
+    }
+  return 0;
+}
+
+/* BUF points to a 32-bit field in DSO that is subject to relocation.
+   If the relocation is in a RELA section, RELA points to the relocation,
+   otherwise it is null.  Add the addend to ADJUSTMENT and install the
+   result.  */
+
+static inline void
+mips_apply_adjustment (DSO *dso, GElf_Rela *rela, char *buf,
+                      GElf_Addr adjustment)
+{
+  if (rela)
+    adjustment += rela->r_addend;
+  else
+    adjustment += buf_read_une32 (dso, buf);
+  buf_write_ne32 (dso, buf, adjustment);
+}
+
+static int
+mips_apply_reloc (struct prelink_info *info, GElf_Xword r_info,
+                 GElf_Rela *rela, char *buf)
+{
+  DSO *dso;
+
+  dso = info->dso;
+  switch (GELF_R_TYPE (r_info))
+    {
+    case R_MIPS_NONE:
+      break;
+
+    case R_MIPS_REL32:
+      mips_apply_adjustment (dso, rela, buf,
+                            info->resolve (info, GELF_R_SYM (r_info),
+                                           GELF_R_TYPE (r_info)));
+      break;
+
+    default:
+      return 1;
+    }
+  return 0;
+}
+
+static int
+mips_apply_rel (struct prelink_info *info, GElf_Rel *rel, char *buf)
+{
+  return mips_apply_reloc (info, rel->r_info, NULL, buf);
+}
+
+static int
+mips_apply_rela (struct prelink_info *info, GElf_Rela *rela, char *buf)
+{
+  return mips_apply_reloc (info, rela->r_info, rela, buf);
+}
+
+static int
+mips_rel_to_rela (DSO *dso, GElf_Rel *rel, GElf_Rela *rela)
+{
+  rela->r_offset = rel->r_offset;
+  rela->r_info = rel->r_info;
+  switch (GELF_R_TYPE (rel->r_info))
+    {
+    case R_MIPS_REL32:
+    case R_MIPS_TLS_DTPREL32:
+    case R_MIPS_TLS_TPREL32:
+      /* These relocations have an in-place addend.  */
+      rela->r_addend = (int32_t) read_une32 (dso, rel->r_offset);
+      break;
+
+    case R_MIPS_NONE:
+    case R_MIPS_GLOB_DAT:
+    case R_MIPS_TLS_DTPMOD32:
+      /* These relocations have no addend.  */
+      rela->r_addend = 0;
+      break;
+
+    default:
+      error (0, 0, "%s: Unknown MIPS relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rel->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+mips_rela_to_rel (DSO *dso, GElf_Rela *rela, GElf_Rel *rel)
+{
+  rel->r_offset = rela->r_offset;
+  rel->r_info = rela->r_info;
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_MIPS_NONE:
+      break;
+
+    case R_MIPS_REL32:
+    case R_MIPS_TLS_DTPREL32:
+    case R_MIPS_TLS_TPREL32:
+      /* These relocations have an in-place addend.  */
+      write_ne32 (dso, rela->r_offset, rela->r_addend);
+      break;
+
+    case R_MIPS_GLOB_DAT:
+    case R_MIPS_TLS_DTPMOD32:
+      /* These relocations have no addend.  */
+      write_ne32 (dso, rela->r_offset, 0);
+      break;
+
+    default:
+      error (0, 0, "%s: Unknown MIPS relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+mips_need_rel_to_rela (DSO *dso, int first, int last)
+{
+  Elf_Data *data;
+  Elf_Scn *scn;
+  Elf32_Rel *rel, *relend;
+  int n;
+
+  for (n = first; n <= last; n++)
+    {
+      data = NULL;
+      scn = dso->scn[n];
+      while ((data = elf_getdata (scn, data)) != NULL)
+       {
+         rel = (Elf32_Rel *) data->d_buf;
+         relend = rel + data->d_size / sizeof (Elf32_Rel);
+         for (; rel < relend; rel++)
+           switch (ELF32_R_TYPE (rel->r_info))
+             {
+             case R_MIPS_NONE:
+               break;
+
+             case R_MIPS_REL32:
+               /* The SVR4 definition was designed to allow exactly the
+                  sort of prelinking we want to do here, in combination
+                  with Quickstart.  Unfortunately, glibc's definition
+                  makes it impossible for relocations against anything
+                  other than the null symbol.  We get around this for
+                  zero addends by using a R_MIPS_GLOB_DAT relocation
+                  instead, where R_MIPS_GLOB_DAT is a GNU extension
+                  added specifically for this purpose.  */
+               if (ELF32_R_SYM (rel->r_info) != 0
+                   && (ELF32_R_SYM (rel->r_info) < dso->info_DT_MIPS_GOTSYM
+                       || read_une32 (dso, rel->r_offset) != 0))
+                 return 1;
+               break;
+
+             case R_MIPS_GLOB_DAT:
+               /* This relocation has no addend.  */
+               break;
+
+             case R_MIPS_TLS_DTPMOD32:
+               /* The relocation will be resolved using a conflict.  */
+               break;
+
+             case R_MIPS_TLS_DTPREL32:
+               /* We can prelink these fields, and the addend is relative
+                  to the symbol value.  A RELA entry is needed.  */
+               return 1;
+
+             case R_MIPS_TLS_TPREL32:
+               /* Relocations in shared libraries will be resolved by a
+                  conflict.  Relocations in executables will not, and the
+                  addend is relative to the symbol value.  */
+               if (dso->ehdr.e_type == ET_EXEC)
+                 return 1;
+               break;
+
+             default:
+               error (0, 0, "%s: Unknown MIPS relocation type %d",
+                      dso->filename, (int) GELF_R_TYPE (rel->r_info));
+               return 1;
+             }
+       }
+    }
+  return 0;
+}
+
+static int
+mips_reloc_size (int reloc_type)
+{
+  return 4;
+}
+
+static int
+mips_reloc_class (int reloc_type)
+{
+  switch (reloc_type)
+    {
+    case R_MIPS_TLS_DTPMOD32:
+    case R_MIPS_TLS_DTPREL32:
+    case R_MIPS_TLS_TPREL32:
+      return RTYPE_CLASS_TLS;
+    default:
+      /* MIPS lazy resolution stubs are local to the containing object,
+        so SHN_UNDEF symbols never participate in symbol lookup.  */
+      return RTYPE_CLASS_PLT;
+    }
+}
+
+static int
+mips_arch_prelink (struct prelink_info *info)
+{
+  struct mips_global_got_iterator ggi;
+  DSO *dso;
+  GElf_Addr value;
+
+  dso = info->dso;
+  if (dso->info[DT_PLTGOT] == 0)
+    return 0;
+
+  /* Install Quickstart values for all global GOT entries of type A-D
+     in the table above.  */
+  mips_init_global_got_iterator (&ggi, dso);
+  while (mips_get_global_got_entry (&ggi))
+    {
+      value = info->resolve (info, ggi.sym_index, R_MIPS_REL32);
+      if (ggi.sym.st_shndx == SHN_UNDEF
+         || ggi.sym.st_shndx == SHN_COMMON)
+       buf_write_ne32 (dso, ggi.got_entry, value);
+      else
+       {
+         /* Type E and F in the table above.  We cannot install Quickstart
+            values for type E, but we should never need to in executables,
+            because an executable should not use lazy binding stubs for
+            symbols it defines itself.  Although we could in theory just
+            discard any such stub address, it goes against the principle
+            that prelinking should be reversible.
+
+            When type E entries occur in shared libraries, we can fix
+            them up using conflicts.
+
+            Type F entries should never need a Quickstart value -- the
+            current value should already be correct.  However, the conflict
+            code will cope correctly with malformed type F entries in
+            shared libraries, so we only complain about executables here.  */
+         if (dso->ehdr.e_type == ET_EXEC
+             && value != buf_read_une32 (dso, ggi.got_entry))
+           {
+             error (0, 0, "%s: The global GOT entries for defined symbols"
+                    " do not match their st_values\n", dso->filename);
+             return 1;
+           }
+       }
+    }
+  return ggi.failed;
+}
+
+static int
+mips_arch_undo_prelink (DSO *dso)
+{
+  struct mips_global_got_iterator ggi;
+
+  if (dso->info[DT_PLTGOT] == 0)
+    return 0;
+
+  mips_init_global_got_iterator (&ggi, dso);
+  while (mips_get_global_got_entry (&ggi))
+    if (ggi.sym.st_shndx == SHN_UNDEF)
+      /* Types A-C in the table above.  */
+      buf_write_ne32 (dso, ggi.got_entry, ggi.sym.st_value);
+    else if (ggi.sym.st_shndx == SHN_COMMON)
+      /* Type D in the table above.  */
+      buf_write_ne32 (dso, ggi.got_entry, 0);
+  return ggi.failed;
+}
+
+static int
+mips_undo_prelink_rel (DSO *dso, GElf_Rel *rel, GElf_Addr reladdr)
+{
+  /* Convert R_MIPS_GLOB_DAT relocations back into R_MIPS_REL32
+     relocations.  Ideally we'd have some mechanism for recording
+     these changes in the undo section, but in the absence of that,
+     it's better to assume that the original relocation was
+     R_MIPS_REL32; R_MIPS_GLOB_DAT was added specifically for the
+     prelinker and shouldn't be used in non-prelinked binaries.  */
+  if (GELF_R_TYPE (rel->r_info) == R_MIPS_GLOB_DAT)
+    {
+      write_ne32 (dso, rel->r_offset, 0);
+      rel->r_info = GELF_R_INFO (GELF_R_SYM (rel->r_info), R_MIPS_REL32);
+      return 2;
+    }
+  return 0;
+}
+
+PL_ARCH = {
+  .name = "MIPS",
+  .class = ELFCLASS32,
+  .machine = EM_MIPS,
+  .max_reloc_size = 4,
+  .dynamic_linker = "/lib/ld.so.1",
+  /* MIPS does not use COPY relocs or jump slots.  Pick a value outside
+     the ELF32_R_TYPE range.  */
+  .R_COPY = ~0U,
+  .R_JMP_SLOT = ~0U,
+  /* R_MIPS_REL32 relocations against symbol 0 do act as relative relocs,
+     but those against other symbols don't.  */
+  .R_RELATIVE = ~0U,
+  .rtype_class_valid = RTYPE_CLASS_VALID,
+  .arch_adjust = mips_arch_adjust,
+  .adjust_dyn = mips_adjust_dyn,
+  .adjust_rel = mips_adjust_rel,
+  .adjust_rela = mips_adjust_rela,
+  .prelink_rel = mips_prelink_rel,
+  .prelink_rela = mips_prelink_rela,
+  .prelink_conflict_rel = mips_prelink_conflict_rel,
+  .prelink_conflict_rela = mips_prelink_conflict_rela,
+  .arch_prelink_conflict = mips_arch_prelink_conflict,
+  .apply_conflict_rela = mips_apply_conflict_rela,
+  .apply_rel = mips_apply_rel,
+  .apply_rela = mips_apply_rela,
+  .rel_to_rela = mips_rel_to_rela,
+  .rela_to_rel = mips_rela_to_rel,
+  .need_rel_to_rela = mips_need_rel_to_rela,
+  .reloc_size = mips_reloc_size,
+  .reloc_class = mips_reloc_class,
+  .arch_prelink = mips_arch_prelink,
+  .arch_undo_prelink = mips_arch_undo_prelink,
+  .undo_prelink_rel = mips_undo_prelink_rel,
+  /* Although TASK_UNMAPPED_BASE is 0x2aaa8000, we leave some
+     area so that mmap of /etc/ld.so.cache and ld.so's malloc
+     does not take some library's VA slot.
+     Also, if this guard area isn't too small, typically
+     even dlopened libraries will get the slots they desire.  */
+  .mmap_base = 0x2c000000,
+  .mmap_end =  0x3c000000,
+  .max_page_size = 0x10000,
+  .page_size = 0x1000
+};
diff --git a/src/arch-ppc.c b/src/arch-ppc.c
new file mode 100644 (file)
index 0000000..b209c7a
--- /dev/null
@@ -0,0 +1,1188 @@
+/* Copyright (C) 2001, 2002, 2003, 2004, 2005, 2009 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <locale.h>
+#include <error.h>
+#include <argp.h>
+#include <stdlib.h>
+
+#include "prelink.h"
+#include "layout.h"
+
+#ifndef DT_PPC_GOT
+# define DT_PPC_GOT    (DT_LOPROC + 0)
+#endif
+
+#define DT_PPC_GOT_BIT DT_LOPROC_BIT
+
+static int
+ppc_adjust_dyn (DSO *dso, int n, GElf_Dyn *dyn, GElf_Addr start,
+               GElf_Addr adjust)
+{
+  if (dyn->d_tag == DT_PPC_GOT)
+    {
+      Elf32_Addr data;
+
+      data = read_ube32 (dso, dyn->d_un.d_ptr);
+      /* DT_PPC_GOT[0] points to _DYNAMIC, it needs to be adjusted.  */
+      if (data == dso->shdr[n].sh_addr && data >= start)
+       write_be32 (dso, dyn->d_un.d_ptr, data + adjust);
+
+      data = read_ube32 (dso, dyn->d_un.d_ptr + 4);
+      /* DT_PPC_GOT[1] points to .glink in prelinked libs.  */
+      if (data && data >= start)
+       write_be32 (dso, dyn->d_un.d_ptr + 4, data + adjust);
+
+      if (dyn->d_un.d_ptr >= start)
+       {
+         dyn->d_un.d_ptr += adjust;
+         return 1;
+       }
+    }
+  else if (dyn->d_tag == DT_PLTGOT
+          && !dynamic_info_is_set (dso, DT_PPC_GOT_BIT))
+    {
+      int i;
+
+      for (i = 1; i < dso->ehdr.e_shnum; ++i)
+       if (! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                             dso->shdr[i].sh_name), ".got")
+           && dso->shdr[i].sh_size >= 16)
+         {
+           Elf32_Addr data, addr;
+           int step;
+
+           /* If .got[1] points to _DYNAMIC, it needs to be adjusted.
+              Other possible locations of the .got header are at the
+              end of .got or around offset 32768 in it.  */
+           for (addr = dso->shdr[i].sh_addr, step = 0; step < 18; step++)
+             {
+               if (read_ube32 (dso, addr) == 0x4e800021
+                   && (data = read_ube32 (dso, addr + 4))
+                      == dso->shdr[n].sh_addr
+                   && data >= start
+                   && read_ube32 (dso, addr + 8) == 0
+                   && read_ube32 (dso, addr + 12) == 0)
+                 {
+                   /* Probably should use here a check that neither of
+                      the 4 addresses contains a dynamic relocation against
+                      it.  */
+                   write_be32 (dso, addr + 4, data + adjust);
+                   break;
+                 }
+               if (step == 0)
+                 addr = dso->shdr[i].sh_addr + dso->shdr[i].sh_size - 16;
+               else if (step == 1)
+                 {
+                   if (dso->shdr[i].sh_size >= 32768 - 32)
+                     addr = dso->shdr[i].sh_addr + 32768 - 32 - 16;
+                   else
+                     break;
+                 }
+               else
+                 {
+                   addr += 4;
+                   if (addr + 16
+                       > dso->shdr[i].sh_addr + dso->shdr[i].sh_size)
+                     break;
+                 }
+             }
+           break;
+         }
+    }
+
+  return 0;
+}
+
+static int
+ppc_adjust_rel (DSO *dso, GElf_Rel *rel, GElf_Addr start,
+               GElf_Addr adjust)
+{
+  error (0, 0, "%s: PowerPC doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+ppc_adjust_rela (DSO *dso, GElf_Rela *rela, GElf_Addr start,
+                GElf_Addr adjust)
+{
+  if (GELF_R_TYPE (rela->r_info) == R_PPC_RELATIVE
+      || GELF_R_TYPE (rela->r_info) == R_PPC_IRELATIVE)
+    {
+      if ((Elf32_Word) rela->r_addend >= start)
+       rela->r_addend += (Elf32_Sword) adjust;
+    }
+  if (GELF_R_TYPE (rela->r_info) == R_PPC_JMP_SLOT
+      && dynamic_info_is_set (dso, DT_PPC_GOT_BIT))
+    {
+      Elf32_Addr data = read_ube32 (dso, rela->r_offset);
+      if (data >= start)
+       write_be32 (dso, rela->r_offset, data + adjust);
+    }
+  return 0;
+}
+
+static int
+ppc_prelink_rel (struct prelink_info *info, GElf_Rel *rel,
+                GElf_Addr reladdr)
+{
+  error (0, 0, "%s: PowerPC doesn't support REL relocs", info->dso->filename);
+  return 1;
+}
+
+static void
+ppc_fixup_plt (DSO *dso, GElf_Rela *rela, GElf_Addr value)
+{
+  Elf32_Sword disp = value - rela->r_offset;
+
+  if (disp >= -0x2000000 && disp < 0x2000000)
+    {
+      /* b value  */
+      write_be32 (dso, rela->r_offset, 0x48000000 | (disp & 0x3fffffc));
+    }
+  else if ((Elf32_Addr) value >= -0x2000000 || value < 0x2000000)
+    {
+      /* ba value  */
+      write_be32 (dso, rela->r_offset, 0x48000002 | (value & 0x3fffffc));
+    }
+  else
+    {
+      Elf32_Addr plt = dso->info[DT_PLTGOT];
+
+      if (rela->r_offset - plt < (8192 * 2 + 18) * 4)
+       {
+         Elf32_Word index = (rela->r_offset - plt - 18 * 4) / (4 * 2);
+         Elf32_Word count = dso->info[DT_PLTRELSZ] / sizeof (Elf32_Rela);
+         Elf32_Addr data;
+
+         data = plt + (18 + 2 * count
+                       + (count > 8192 ? (count - 8192) * 2 : 0)) * 4;
+         write_be32 (dso, data + 4 * index, value);
+         /* li %r11, 4*index
+            b .plt+0  */
+         write_be32 (dso, rela->r_offset,
+                     0x39600000 | ((index * 4) & 0xffff));
+         write_be32 (dso, rela->r_offset + 4,
+                     0x48000000 | ((plt - rela->r_offset - 4) & 0x3fffffc));
+       }
+      else
+       {
+         /* lis %r12, %hi(finaladdr)
+            addi %r12, %r12, %lo(finaladdr)
+            mtctr %r12
+            bctr  */
+         write_be32 (dso, rela->r_offset,
+                     0x39800000 | (((value + 0x8000) >> 16) & 0xffff));
+         write_be32 (dso, rela->r_offset + 4, 0x398c0000 | (value & 0xffff));
+         write_be32 (dso, rela->r_offset + 8, 0x7d8903a6);
+         write_be32 (dso, rela->r_offset + 12, 0x4e800420);
+       }
+    }
+}
+
+static int
+ppc_prelink_rela (struct prelink_info *info, GElf_Rela *rela,
+                 GElf_Addr relaaddr)
+{
+  DSO *dso = info->dso;
+  GElf_Addr value;
+
+  if (GELF_R_TYPE (rela->r_info) == R_PPC_NONE
+      || GELF_R_TYPE (rela->r_info) == R_PPC_IRELATIVE)
+    return 0;
+  else if (GELF_R_TYPE (rela->r_info) == R_PPC_RELATIVE)
+    {
+      write_be32 (dso, rela->r_offset, rela->r_addend);
+      return 0;
+    }
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  value += rela->r_addend;
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_PPC_GLOB_DAT:
+    case R_PPC_ADDR32:
+    case R_PPC_UADDR32:
+      write_be32 (dso, rela->r_offset, value);
+      break;
+    case R_PPC_DTPREL32:
+      write_be32 (dso, rela->r_offset, value - 0x8000);
+      break;
+    case R_PPC_JMP_SLOT:
+      if (dynamic_info_is_set (dso, DT_PPC_GOT_BIT))
+       write_be32 (dso, rela->r_offset, value);
+      else
+       ppc_fixup_plt (dso, rela, value);
+      break;
+    case R_PPC_ADDR16:
+    case R_PPC_UADDR16:
+    case R_PPC_ADDR16_LO:
+      write_be16 (dso, rela->r_offset, value);
+      break;
+    case R_PPC_DTPREL16:
+    case R_PPC_DTPREL16_LO:
+      write_be16 (dso, rela->r_offset, value - 0x8000);
+      break;
+    case R_PPC_ADDR16_HI:
+    case R_PPC_DTPREL16_HA:
+      write_be16 (dso, rela->r_offset, value >> 16);
+      break;
+    case R_PPC_DTPREL16_HI:
+      write_be16 (dso, rela->r_offset, (value - 0x8000) >> 16);
+      break;
+    case R_PPC_ADDR16_HA:
+      write_be16 (dso, rela->r_offset, (value + 0x8000) >> 16);
+      break;
+    case R_PPC_ADDR24:
+      write_be32 (dso, rela->r_offset,
+                 (value & 0x03fffffc)
+                 | (read_ube32 (dso, rela->r_offset) & 0xfc000003));
+      break;
+    case R_PPC_ADDR14:
+      write_be32 (dso, rela->r_offset,
+                 (value & 0xfffc)
+                 | (read_ube32 (dso, rela->r_offset) & 0xffff0003));
+      break;
+    case R_PPC_ADDR14_BRTAKEN:
+    case R_PPC_ADDR14_BRNTAKEN:
+      write_be32 (dso, rela->r_offset,
+                 (value & 0xfffc)
+                 | (read_ube32 (dso, rela->r_offset) & 0xffdf0003)
+                 | ((((GELF_R_TYPE (rela->r_info) == R_PPC_ADDR14_BRTAKEN)
+                      << 21)
+                     ^ (value >> 10)) & 0x00200000));
+      break;
+    case R_PPC_REL24:
+      write_be32 (dso, rela->r_offset,
+                 ((value - rela->r_offset) & 0x03fffffc)
+                 | (read_ube32 (dso, rela->r_offset) & 0xfc000003));
+      break;
+    case R_PPC_REL32:
+      write_be32 (dso, rela->r_offset, value - rela->r_offset);
+      break;
+    /* DTPMOD32 and TPREL* is impossible to predict in shared libraries
+       unless prelink sets the rules.  */
+    case R_PPC_DTPMOD32:
+      if (dso->ehdr.e_type == ET_EXEC)
+       {
+         error (0, 0, "%s: R_PPC_DTPMOD32 reloc in executable?",
+                dso->filename);
+         return 1;
+       }
+      break;
+    case R_PPC_TPREL32:
+    case R_PPC_TPREL16:
+    case R_PPC_TPREL16_LO:
+    case R_PPC_TPREL16_HI:
+    case R_PPC_TPREL16_HA:
+      if (dso->ehdr.e_type == ET_EXEC && info->resolvetls)
+       {
+         value += info->resolvetls->offset - 0x7000;
+         switch (GELF_R_TYPE (rela->r_info))
+           {
+           case R_PPC_TPREL32:
+             write_be32 (dso, rela->r_offset, value);
+             break;
+           case R_PPC_TPREL16:
+           case R_PPC_TPREL16_LO:
+             write_be16 (dso, rela->r_offset, value);
+             break;
+           case R_PPC_TPREL16_HI:
+             write_be16 (dso, rela->r_offset, value >> 16);
+             break;
+           case R_PPC_TPREL16_HA:
+             write_be16 (dso, rela->r_offset, (value + 0x8000) >> 16);
+             break;
+           }
+       }
+      break;
+    case R_PPC_COPY:
+      if (dso->ehdr.e_type == ET_EXEC)
+       /* COPY relocs are handled specially in generic code.  */
+       return 0;
+      error (0, 0, "%s: R_PPC_COPY reloc in shared library?", dso->filename);
+      return 1;
+    default:
+      error (0, 0, "%s: Unknown ppc relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+ppc_apply_conflict_rela (struct prelink_info *info, GElf_Rela *rela,
+                        char *buf, GElf_Addr dest_addr)
+{
+  GElf_Rela *ret;
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_PPC_ADDR32:
+    case R_PPC_UADDR32:
+      buf_write_be32 (buf, rela->r_addend);
+      break;
+    case R_PPC_ADDR16:
+    case R_PPC_UADDR16:
+      buf_write_be16 (buf, rela->r_addend);
+      break;
+    case R_PPC_IRELATIVE:
+      if (dest_addr == 0)
+       return 5;
+      ret = prelink_conflict_add_rela (info);
+      if (ret == NULL)
+       return 1;
+      ret->r_offset = dest_addr;
+      ret->r_info = GELF_R_INFO (0, R_PPC_IRELATIVE);
+      ret->r_addend = rela->r_addend;
+      break;
+    default:
+      abort ();
+    }
+  return 0;
+}
+
+static int
+ppc_apply_rel (struct prelink_info *info, GElf_Rel *rel, char *buf)
+{
+  error (0, 0, "%s: PowerPC doesn't support REL relocs", info->dso->filename);
+  return 1;
+}
+
+static int
+ppc_apply_rela (struct prelink_info *info, GElf_Rela *rela, char *buf)
+{
+  GElf_Addr value;
+
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  value += rela->r_addend;
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_PPC_NONE:
+      break;
+    case R_PPC_GLOB_DAT:
+    case R_PPC_ADDR32:
+    case R_PPC_UADDR32:
+      buf_write_be32 (buf, value);
+      break;
+    case R_PPC_ADDR16_HA:
+      value += 0x8000;
+      /* FALLTHROUGH  */
+    case R_PPC_ADDR16_HI:
+      value = value >> 16;
+      /* FALLTHROUGH  */
+    case R_PPC_ADDR16:
+    case R_PPC_UADDR16:
+    case R_PPC_ADDR16_LO:
+      buf_write_be16 (buf, value);
+      break;
+    case R_PPC_ADDR24:
+      buf_write_be32 (buf, (value & 0x03fffffc)
+                          | (buf_read_ube32 (buf) & 0xfc000003));
+      break;
+    case R_PPC_ADDR14:
+      buf_write_be32 (buf, (value & 0xfffc)
+                          | (buf_read_ube32 (buf) & 0xffff0003));
+      break;
+    case R_PPC_ADDR14_BRTAKEN:
+    case R_PPC_ADDR14_BRNTAKEN:
+      buf_write_be32 (buf, (value & 0xfffc)
+                          | (buf_read_ube32 (buf) & 0xffdf0003)
+                          | ((((GELF_R_TYPE (rela->r_info)
+                                == R_PPC_ADDR14_BRTAKEN) << 21)
+                              ^ (value >> 10)) & 0x00200000));
+      break;
+    case R_PPC_REL24:
+      buf_write_be32 (buf, ((value - rela->r_offset) & 0x03fffffc)
+                          | (buf_read_ube32 (buf) & 0xfc000003));
+      break;
+    case R_PPC_REL32:
+      buf_write_be32 (buf, value - rela->r_offset);
+      break;
+    case R_PPC_RELATIVE:
+      error (0, 0, "%s: R_PPC_RELATIVE in ET_EXEC object?",
+            info->dso->filename);
+      return 1;
+    default:
+      return 1;
+    }
+  return 0;
+}
+
+static int
+ppc_prelink_conflict_rel (DSO *dso, struct prelink_info *info,
+                         GElf_Rel *rel, GElf_Addr reladdr)
+{
+  error (0, 0, "%s: PowerPC doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+ppc_prelink_conflict_rela (DSO *dso, struct prelink_info *info,
+                          GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  GElf_Addr value;
+  struct prelink_conflict *conflict;
+  struct prelink_tls *tls;
+  GElf_Rela *ret;
+  int r_type;
+
+  if (GELF_R_TYPE (rela->r_info) == R_PPC_RELATIVE
+      || GELF_R_TYPE (rela->r_info) == R_PPC_NONE)
+    /* Fast path: nothing to do.  */
+    return 0;
+  conflict = prelink_conflict (info, GELF_R_SYM (rela->r_info),
+                              GELF_R_TYPE (rela->r_info));
+  if (conflict == NULL)
+    {
+      switch (GELF_R_TYPE (rela->r_info))
+       {
+       /* Even local DTPMOD and TPREL relocs need conflicts.  */
+       case R_PPC_DTPMOD32:
+       case R_PPC_TPREL32:
+       case R_PPC_TPREL16:
+       case R_PPC_TPREL16_LO:
+       case R_PPC_TPREL16_HI:
+       case R_PPC_TPREL16_HA:
+         if (info->curtls == NULL || info->dso == dso)
+           return 0;
+         break;
+       /* Similarly IRELATIVE relocations always need conflicts.  */
+       case R_PPC_IRELATIVE:
+         break;
+       default:
+         return 0;
+       }
+      value = 0;
+    }
+  else if (info->dso == dso && !conflict->ifunc)
+    return 0;
+  else
+    {
+      /* DTPREL wants to see only real conflicts, not lookups
+        with reloc_class RTYPE_CLASS_TLS.  */
+      if (conflict->lookup.tls == conflict->conflict.tls
+         && conflict->lookupval == conflict->conflictval)
+       switch (GELF_R_TYPE (rela->r_info))
+         {
+         case R_PPC_DTPREL32:
+         case R_PPC_DTPREL16:
+         case R_PPC_DTPREL16_LO:
+         case R_PPC_DTPREL16_HI:
+         case R_PPC_DTPREL16_HA:
+           return 0;
+         }
+
+      value = conflict_lookup_value (conflict);
+    }
+  ret = prelink_conflict_add_rela (info);
+  if (ret == NULL)
+    return 1;
+  ret->r_offset = rela->r_offset;
+  value += rela->r_addend;
+  r_type = GELF_R_TYPE (rela->r_info);
+  switch (r_type)
+    {
+    case R_PPC_GLOB_DAT:
+      r_type = R_PPC_ADDR32;
+    case R_PPC_ADDR32:
+    case R_PPC_UADDR32:
+    case R_PPC_IRELATIVE:
+      if (conflict != NULL && conflict->ifunc)
+       r_type = R_PPC_IRELATIVE;
+      break;
+    case R_PPC_JMP_SLOT:
+      if (dynamic_info_is_set (dso, DT_PPC_GOT_BIT))
+       {
+         r_type = R_PPC_ADDR32;
+         if (conflict != NULL && conflict->ifunc)
+           r_type = R_PPC_IRELATIVE;
+       }
+      break;
+    case R_PPC_ADDR16_HA:
+      value += 0x8000;
+      /* FALLTHROUGH  */
+    case R_PPC_ADDR16_HI:
+      value = value >> 16;
+      /* FALLTHROUGH  */
+    case R_PPC_ADDR16:
+    case R_PPC_UADDR16:
+    case R_PPC_ADDR16_LO:
+      if (r_type != R_PPC_UADDR16)
+       r_type = R_PPC_ADDR16;
+      value = ((value & 0xffff) ^ 0x8000) - 0x8000;
+      break;
+    case R_PPC_ADDR24:
+      r_type = R_PPC_ADDR32;
+      value = (value & 0x03fffffc)
+             | (read_ube32 (dso, rela->r_offset) & 0xfc000003);
+      break;
+    case R_PPC_ADDR14:
+      r_type = R_PPC_ADDR32;
+      value = (value & 0xfffc)
+             | (read_ube32 (dso, rela->r_offset) & 0xffff0003);
+      break;
+    case R_PPC_ADDR14_BRTAKEN:
+    case R_PPC_ADDR14_BRNTAKEN:
+      r_type = R_PPC_ADDR32;
+      value = (value & 0xfffc)
+             | (read_ube32 (dso, rela->r_offset) & 0xffdf0003)
+             | ((((r_type == R_PPC_ADDR14_BRTAKEN) << 21)
+                 ^ (value >> 10)) & 0x00200000);
+      break;
+    case R_PPC_REL24:
+      r_type = R_PPC_ADDR32;
+      value = ((value - rela->r_offset) & 0x03fffffc)
+             | (read_ube32 (dso, rela->r_offset) & 0xfc000003);
+      break;
+    case R_PPC_REL32:
+      r_type = R_PPC_ADDR32;
+      value -= rela->r_offset;
+      break;
+    case R_PPC_DTPMOD32:
+    case R_PPC_DTPREL32:
+    case R_PPC_DTPREL16:
+    case R_PPC_DTPREL16_LO:
+    case R_PPC_DTPREL16_HI:
+    case R_PPC_DTPREL16_HA:
+    case R_PPC_TPREL32:
+    case R_PPC_TPREL16:
+    case R_PPC_TPREL16_LO:
+    case R_PPC_TPREL16_HI:
+    case R_PPC_TPREL16_HA:
+      if (conflict != NULL
+         && (conflict->reloc_class != RTYPE_CLASS_TLS
+             || conflict->lookup.tls == NULL))
+       {
+         error (0, 0, "%s: TLS reloc not resolving to STT_TLS symbol",
+                dso->filename);
+         return 1;
+       }
+      tls = conflict ? conflict->lookup.tls : info->curtls;
+      r_type = R_PPC_ADDR16;
+      switch (GELF_R_TYPE (rela->r_info))
+       {
+       case R_PPC_DTPMOD32:
+         r_type = R_PPC_ADDR32;
+         value = tls->modid;
+         break;
+       case R_PPC_DTPREL32:
+         r_type = R_PPC_ADDR32;
+         value -= 0x8000;
+         break;
+       case R_PPC_DTPREL16:
+       case R_PPC_DTPREL16_LO:
+         value -= 0x8000;
+         break;
+       case R_PPC_DTPREL16_HI:
+         value = (value - 0x8000) >> 16;
+         break;
+       case R_PPC_DTPREL16_HA:
+         value >>= 16;
+         break;
+       case R_PPC_TPREL32:
+         r_type = R_PPC_ADDR32;
+         value += tls->offset - 0x7000;
+         break;
+       case R_PPC_TPREL16:
+       case R_PPC_TPREL16_LO:
+         value += tls->offset - 0x7000;
+         break;
+       case R_PPC_TPREL16_HI:
+         value = (value + tls->offset - 0x7000) >> 16;
+         break;
+       case R_PPC_TPREL16_HA:
+         value = (value + tls->offset - 0x7000 + 0x8000) >> 16;
+         break;
+       }
+      if (r_type == R_PPC_ADDR16)
+       value = ((value & 0xffff) ^ 0x8000) - 0x8000;
+      break;
+    default:
+      error (0, 0, "%s: Unknown PowerPC relocation type %d", dso->filename,
+            r_type);
+      return 1;
+    }
+  if (conflict != NULL && conflict->ifunc && r_type != R_PPC_IRELATIVE)
+    {
+      error (0, 0, "%s: relocation %d against IFUNC symbol", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  ret->r_info = GELF_R_INFO (0, r_type);
+  ret->r_addend = (Elf32_Sword) value;
+  return 0;
+}
+
+static int
+ppc_rel_to_rela (DSO *dso, GElf_Rel *rel, GElf_Rela *rela)
+{
+  error (0, 0, "%s: PowerPC doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+ppc_need_rel_to_rela (DSO *dso, int first, int last)
+{
+  return 0;
+}
+
+static int
+ppc_arch_pre_prelink (DSO *dso)
+{
+  Elf_Data *data = NULL;
+  Elf_Scn *scn;
+  GElf_Dyn dyn;
+  Elf32_Addr val;
+  int i;
+
+  if (!dynamic_info_is_set (dso, DT_PPC_GOT_BIT))
+    return 0;
+
+  assert (dso->shdr[dso->dynamic].sh_type == SHT_DYNAMIC);
+
+  scn = dso->scn[dso->dynamic];
+  while ((data = elf_getdata (scn, data)) != NULL)
+    {
+      int ndx, maxndx;
+
+      maxndx = data->d_size / dso->shdr[dso->dynamic].sh_entsize;
+      for (ndx = 0; ndx < maxndx; ++ndx)
+       {
+         gelfx_getdyn (dso->elf, data, ndx, &dyn);
+         assert (dyn.d_tag != DT_NULL);
+         if (dyn.d_tag == DT_PPC_GOT)
+           break;
+       }
+      if (ndx < maxndx)
+       break;
+    }
+
+  /* DT_PPC_GOT[1] should point to .glink in prelinked libs.  */
+  val = read_ube32 (dso, dyn.d_un.d_ptr + 4);
+  if (val)
+    return 0;
+
+  for (i = 1; i < dso->ehdr.e_shnum; ++i)
+    if (! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                         dso->shdr[i].sh_name), ".plt"))
+      break;
+
+  if (i == dso->ehdr.e_shnum)
+    return 0;
+
+  val = read_ube32 (dso, dso->shdr[i].sh_addr);
+  write_be32 (dso, dyn.d_un.d_ptr + 4, val);
+
+  return 0;
+}
+
+static int
+ppc_arch_prelink (struct prelink_info *info)
+{
+  DSO *dso = info->dso;
+  Elf32_Addr plt = dso->info[DT_PLTGOT];
+
+  if (plt && !dynamic_info_is_set (dso, DT_PPC_GOT_BIT))
+    {
+      Elf32_Word count = dso->info[DT_PLTRELSZ] / sizeof (Elf32_Rela);
+      Elf32_Addr data;
+
+      data = plt + (18 + 2 * count
+                   + (count > 8192 ? (count - 8192) * 2 : 0)) * 4;
+
+      /* addis %r11, %r11, %hi(data)
+        lwz %r11, %r11, %lo(data)
+        mtctr %r11
+        bctr  */
+      write_be32 (dso, plt, 0x3d6b0000 | (((data + 0x8000) >> 16) & 0xffff));
+      write_be32 (dso, plt + 4, 0x816b0000 | (data & 0xffff));
+      write_be32 (dso, plt + 8, 0x7d6903a6);
+      write_be32 (dso, plt + 12, 0x4e800420);
+    }
+  return 0;
+}
+
+static int
+ppc_arch_undo_prelink (DSO *dso)
+{
+  Elf_Data *data = NULL;
+  Elf_Scn *scn;
+  GElf_Dyn dyn;
+  Elf32_Addr val, addr, endaddr;
+  int i;
+
+  if (!dynamic_info_is_set (dso, DT_PPC_GOT_BIT))
+    return 0;
+
+  assert (dso->shdr[dso->dynamic].sh_type == SHT_DYNAMIC);
+
+  scn = dso->scn[dso->dynamic];
+  while ((data = elf_getdata (scn, data)) != NULL)
+    {
+      int ndx, maxndx;
+
+      maxndx = data->d_size / dso->shdr[dso->dynamic].sh_entsize;
+      for (ndx = 0; ndx < maxndx; ++ndx)
+       {
+         gelfx_getdyn (dso->elf, data, ndx, &dyn);
+         assert (dyn.d_tag != DT_NULL);
+         if (dyn.d_tag == DT_PPC_GOT)
+           break;
+       }
+      if (ndx < maxndx)
+       break;
+    }
+
+  /* DT_PPC_GOT[1] should point to .glink in prelinked libs.  */
+  val = read_ube32 (dso, dyn.d_un.d_ptr + 4);
+  if (!val)
+    return 0;
+
+  for (i = 1; i < dso->ehdr.e_shnum; ++i)
+    if (! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                         dso->shdr[i].sh_name), ".plt"))
+      break;
+
+  if (i == dso->ehdr.e_shnum || (dso->shdr[i].sh_size & 3))
+    return 0;
+
+  addr = dso->shdr[i].sh_addr;
+  endaddr = addr + dso->shdr[i].sh_size;
+  for (; addr < endaddr; addr += 4, val += 4)
+    write_be32 (dso, addr, val);
+
+  write_be32 (dso, dyn.d_un.d_ptr + 4, 0);
+
+  return 0;
+}
+
+
+static int
+ppc_undo_prelink_rela (DSO *dso, GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_PPC_NONE:
+      return 0;
+    case R_PPC_RELATIVE:
+    case R_PPC_GLOB_DAT:
+    case R_PPC_ADDR32:
+    case R_PPC_UADDR32:
+    case R_PPC_REL32:
+    case R_PPC_DTPMOD32:
+    case R_PPC_DTPREL32:
+    case R_PPC_TPREL32:
+      write_be32 (dso, rela->r_offset, 0);
+      break;
+    case R_PPC_JMP_SLOT:
+      /* .plt section will become SHT_NOBITS if DT_PPC_GOT is not present,
+        otherwise .plt section will be unprelinked in
+        ppc_arch_undo_prelink.  */
+      return 0;
+    case R_PPC_IRELATIVE:
+      /* .iplt section will become SHT_NOBITS.  */
+      return 0;
+    case R_PPC_ADDR16:
+    case R_PPC_UADDR16:
+    case R_PPC_ADDR16_LO:
+    case R_PPC_ADDR16_HI:
+    case R_PPC_ADDR16_HA:
+    case R_PPC_DTPREL16:
+    case R_PPC_TPREL16:
+    case R_PPC_DTPREL16_LO:
+    case R_PPC_TPREL16_LO:
+    case R_PPC_DTPREL16_HI:
+    case R_PPC_TPREL16_HI:
+    case R_PPC_DTPREL16_HA:
+    case R_PPC_TPREL16_HA:
+      write_be16 (dso, rela->r_offset, 0);
+      break;
+    case R_PPC_ADDR24:
+    case R_PPC_REL24:
+      write_be32 (dso, rela->r_offset,
+                 read_ube32 (dso, rela->r_offset) & 0xfc000003);
+      break;
+    case R_PPC_ADDR14:
+      write_be32 (dso, rela->r_offset,
+                 read_ube32 (dso, rela->r_offset) & 0xffff0003);
+      break;
+    case R_PPC_ADDR14_BRTAKEN:
+    case R_PPC_ADDR14_BRNTAKEN:
+      write_be32 (dso, rela->r_offset,
+                 read_ube32 (dso, rela->r_offset) & 0xffdf0003);
+      break;
+    case R_PPC_COPY:
+      if (dso->ehdr.e_type == ET_EXEC)
+       /* COPY relocs are handled specially in generic code.  */
+       return 0;
+      error (0, 0, "%s: R_PPC_COPY reloc in shared library?", dso->filename);
+      return 1;
+    default:
+      error (0, 0, "%s: Unknown ppc relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+ppc_reloc_size (int reloc_type)
+{
+  switch (reloc_type)
+    {
+    case R_PPC_ADDR16:
+    case R_PPC_UADDR16:
+    case R_PPC_ADDR16_LO:
+    case R_PPC_ADDR16_HI:
+    case R_PPC_ADDR16_HA:
+    case R_PPC_DTPREL16:
+    case R_PPC_DTPREL16_LO:
+    case R_PPC_DTPREL16_HI:
+    case R_PPC_DTPREL16_HA:
+    case R_PPC_TPREL16:
+    case R_PPC_TPREL16_LO:
+    case R_PPC_TPREL16_HI:
+    case R_PPC_TPREL16_HA:
+      return 2;
+    default:
+      break;
+    }
+  return 4;
+}
+
+static int
+ppc_reloc_class (int reloc_type)
+{
+  switch (reloc_type)
+    {
+    case R_PPC_COPY: return RTYPE_CLASS_COPY;
+    case R_PPC_JMP_SLOT: return RTYPE_CLASS_PLT;
+    default:
+      if (reloc_type >= R_PPC_DTPMOD32 && reloc_type <= R_PPC_DTPREL32)
+       return RTYPE_CLASS_TLS;
+      return RTYPE_CLASS_VALID;
+    }
+}
+
+/* Library memory regions in order of precedence:
+   0xe800000 .. 0x10000000 top to bottom
+   0x40000 .. 0xe800000 bottom to top
+   0x18000000 .. 0x30000000 bottom to top  */
+
+#define REG0S  0x0e800000
+#define REG0E  0x10000000
+#define REG1S  0x00040000
+#define REG1E  REG0S
+#define REG2S  0x18000000
+#define REG2E  0x30000000
+
+struct ppc_layout_data
+{
+  int cnt;
+  struct prelink_entry e[3];
+  Elf32_Addr mmap_start, first_start, last_start;
+  struct
+    {
+      struct prelink_entry *e;
+      Elf32_Addr base, end, layend;
+    } ents[0];
+};
+
+static inline void
+list_append (struct prelink_entry *x, struct prelink_entry *e)
+{
+  x->prev->next = e;
+  e->prev = x->prev;
+  e->next = NULL;
+  x->prev = e;
+}
+
+static int
+addr_cmp (const void *A, const void *B)
+{
+  struct prelink_entry *a = * (struct prelink_entry **) A;
+  struct prelink_entry *b = * (struct prelink_entry **) B;
+
+  if (a->base < b->base)
+    return -1;
+  else if (a->base > b->base)
+    return 1;
+  if (a->layend < b->layend)
+    return -1;
+  else if (a->layend > b->layend)
+    return 1;
+  return 0;
+}
+
+static void
+list_sort (struct prelink_entry *x)
+{
+  int cnt, i;
+  struct prelink_entry *e;
+  struct prelink_entry **a;
+
+  if (x->next == NULL)
+    return;
+  for (cnt = 0, e = x->next; e != NULL; e = e->next)
+    ++cnt;
+  a = alloca (cnt * sizeof (*a));
+  for (i = 0, e = x->next; e != NULL; e = e->next)
+    a[i++] = e;
+  qsort (a, cnt, sizeof (*a), addr_cmp);
+  x->next = NULL;
+  x->prev = x;
+  for (i = 0; i < cnt; ++i)
+    list_append (x, a[i]);
+}
+
+static int
+ppc_layout_libs_pre (struct layout_libs *l)
+{
+  Elf32_Addr mmap_start = l->mmap_start - REG1S;
+  Elf32_Addr first_start = REG0S, last_start = REG2S;
+  struct prelink_entry *e, e0, *next = NULL;
+  struct ppc_layout_data *pld;
+  int cnt;
+
+  mmap_start = REG0E - (mmap_start & 0xff0000);
+  for (cnt = 0, e = l->list; e != NULL; e = e->next, ++cnt)
+    {
+      if (e->base < mmap_start && e->layend > mmap_start)
+       mmap_start = (e->layend + 0xffff) & ~0xffff;
+      if (e->base < REG0S && e->layend > REG0S && first_start > e->base)
+       first_start = e->base;
+      if (e->base < REG0E && e->layend > REG2S && last_start < e->layend)
+       last_start = e->layend;
+    }
+  if (mmap_start > REG0E)
+    mmap_start = REG0E;
+
+  pld = calloc (sizeof (*pld) + cnt * sizeof (pld->ents[0]), 1);
+  if (pld == NULL)
+    error (EXIT_FAILURE, ENOMEM, "Cannot lay libraries out");
+
+  l->arch_data = pld;
+  memset (&e0, 0, sizeof (e0));
+  e0.prev = &e0;
+  pld->cnt = cnt;
+  pld->e[0].u.tmp = -1;
+  pld->e[0].base = REG1S + REG0E - mmap_start;
+  pld->e[0].end = pld->e[0].base;
+  pld->e[0].layend = pld->e[0].end;
+  pld->e[0].prev = &pld->e[0];
+  pld->e[1].u.tmp = -1;
+  pld->e[1].base = pld->e[0].end + mmap_start - REG0S;
+  pld->e[1].end = pld->e[1].base;
+  pld->e[1].layend = pld->e[1].end;
+  pld->e[1].prev = &pld->e[1];
+  pld->e[2].u.tmp = -1;
+  pld->e[2].base = pld->e[1].end + first_start - REG1S;
+  pld->e[2].end = pld->e[1].base;
+  pld->e[2].layend = pld->e[2].end;
+  pld->e[2].prev = &pld->e[2];
+  for (cnt = 0, e = l->list; e != NULL; e = next, ++cnt)
+    {
+      next = e->next;
+      pld->ents[cnt].e = e;
+      pld->ents[cnt].base = e->base;
+      pld->ents[cnt].end = e->end;
+      pld->ents[cnt].layend = e->layend;
+      if (e->layend <= REG0S)
+       {
+         if (e->base < REG1S)
+           e->base = REG1S;
+         else if (e->base > first_start)
+           e->base = first_start;
+         if (e->layend < REG1S)
+           e->layend = REG1S;
+         else if (e->layend > first_start)
+           e->layend = first_start;
+         e->base += pld->e[1].end - REG1S;
+         e->layend += pld->e[1].end - REG1S;
+         list_append (&pld->e[1], e);
+       }
+      else if (e->base < mmap_start)
+       {
+         if (e->base < REG0S)
+           e->base = REG0S;
+         if (e->layend > mmap_start)
+           e->layend = mmap_start;
+         e->base = pld->e[0].end + mmap_start - e->layend;
+         e->layend = pld->e[0].layend + mmap_start - pld->ents[cnt].base;
+         list_append (&pld->e[0], e);
+       }
+      else if (e->base < REG0E)
+       {
+         if (e->layend > REG0E)
+           e->layend = REG0E;
+         e->base = REG1S + REG0E - e->layend;
+         e->layend = REG1S + REG0E - pld->ents[cnt].base;
+         list_append (&e0, e);
+       }
+      else if (e->layend >= last_start)
+       {
+         if (e->base < last_start)
+           e->base = last_start;
+         e->base += pld->e[2].end - last_start;
+         e->layend += pld->e[2].end - last_start;
+         list_append (&pld->e[2], e);
+       }
+      e->end = e->layend;
+    }
+
+  list_sort (&pld->e[0]);
+  if (e0.next == NULL)
+    l->list = &pld->e[0];
+  else
+    {
+      list_sort (&e0);
+      l->list = e0.next;
+      l->list->prev = pld->e[0].prev;
+      e0.prev->next = &pld->e[0];
+      pld->e[0].prev = e0.prev;
+    }
+
+  e0.prev = l->list->prev;
+  l->list->prev = pld->e[1].prev;
+  e0.prev->next = &pld->e[1];
+  pld->e[1].prev = e0.prev;
+
+  e0.prev = l->list->prev;
+  l->list->prev = pld->e[2].prev;
+  e0.prev->next = &pld->e[2];
+  pld->e[2].prev = e0.prev;
+
+  pld->mmap_start = mmap_start;
+  pld->first_start = first_start;
+  pld->last_start = last_start;
+
+  l->mmap_start = REG1S;
+  l->mmap_fin = pld->e[2].end + REG2E - last_start;
+  l->mmap_end = l->mmap_fin;
+  l->fakecnt = 3;
+  l->fake = pld->e;
+
+  return 0;
+}
+
+static int
+ppc_layout_libs_post (struct layout_libs *l)
+{
+  struct prelink_entry *e;
+  struct ppc_layout_data *pld = (struct ppc_layout_data *) l->arch_data;
+  Elf32_Addr base, end;
+  int i;
+
+  /* First fix up base and end fields we saved.  */
+  for (i = 0; i < pld->cnt; ++i)
+    {
+      pld->ents[i].e->base = pld->ents[i].base;
+      pld->ents[i].e->layend = pld->ents[i].layend;
+      pld->ents[i].e->end = pld->ents[i].end;
+      pld->ents[i].e->done |= 0x40;
+    }
+  pld->e[0].done |= 0x40;
+  pld->e[1].done |= 0x40;
+  pld->e[2].done |= 0x40;
+
+  /* Now fix up the newly created items.  */
+  for (e = l->list; e != NULL; e = e->next)
+    if (e->done & 0x40)
+      e->done &= ~0x40;
+    else
+      {
+       base = e->base;
+       end = e->layend;
+       if (e->base < pld->e[0].base)
+         {
+           e->base = REG1S + REG0E - end;
+           e->end += e->base - base;
+           e->layend = REG1S + REG0E - base;
+         }
+       else if (e->base < pld->e[1].base)
+         {
+           e->base = pld->e[0].end + pld->mmap_start - end;
+           e->end += e->base - base;
+           e->layend = pld->e[0].end + pld->mmap_start - base;
+         }
+       else if (e->base < pld->e[2].base)
+         {
+           e->base -= pld->e[1].end - REG1S;
+           e->end -= pld->e[1].end - REG1S;
+           e->layend -= pld->e[1].end - REG1S;
+         }
+       else
+         {
+           e->base -= pld->e[2].end - pld->last_start;
+           e->end -= pld->e[2].end - pld->last_start;
+           e->layend -= pld->e[2].end - pld->last_start;
+         }
+      }
+
+  for (i = 0; i < pld->cnt; ++i)
+    pld->ents[i].e->done &= ~0x40;
+
+  free (l->arch_data);
+  return 0;
+}
+
+PL_ARCH = {
+  .name = "PowerPC",
+  .class = ELFCLASS32,
+  .machine = EM_PPC,
+  .alternate_machine = { EM_NONE },
+  .R_JMP_SLOT = R_PPC_JMP_SLOT,
+  .R_COPY = R_PPC_COPY,
+  .R_RELATIVE = R_PPC_RELATIVE,
+  .rtype_class_valid = RTYPE_CLASS_VALID,
+  .dynamic_linker = "/lib/ld.so.1",
+  .adjust_dyn = ppc_adjust_dyn,
+  .adjust_rel = ppc_adjust_rel,
+  .adjust_rela = ppc_adjust_rela,
+  .prelink_rel = ppc_prelink_rel,
+  .prelink_rela = ppc_prelink_rela,
+  .prelink_conflict_rel = ppc_prelink_conflict_rel,
+  .prelink_conflict_rela = ppc_prelink_conflict_rela,
+  .apply_conflict_rela = ppc_apply_conflict_rela,
+  .apply_rel = ppc_apply_rel,
+  .apply_rela = ppc_apply_rela,
+  .rel_to_rela = ppc_rel_to_rela,
+  .need_rel_to_rela = ppc_need_rel_to_rela,
+  .reloc_size = ppc_reloc_size,
+  .reloc_class = ppc_reloc_class,
+  .max_reloc_size = 4,
+  .arch_pre_prelink = ppc_arch_pre_prelink,
+  .arch_prelink = ppc_arch_prelink,
+  .arch_undo_prelink = ppc_arch_undo_prelink,
+  .undo_prelink_rela = ppc_undo_prelink_rela,
+  .layout_libs_pre = ppc_layout_libs_pre,
+  .layout_libs_post = ppc_layout_libs_post,
+  /* This will need some changes in layout.c.
+     PowerPC prefers addresses right below REG0E
+     and can use the region above REG2S if libs don't fit.  */
+  .mmap_base = REG1S,
+  .mmap_end =  REG2E,
+  .max_page_size = 0x10000,
+  .page_size = 0x1000
+};
diff --git a/src/arch-ppc64.c b/src/arch-ppc64.c
new file mode 100644 (file)
index 0000000..351fab1
--- /dev/null
@@ -0,0 +1,900 @@
+/* Copyright (C) 2002, 2003, 2004, 2009 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2002.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <locale.h>
+#include <error.h>
+#include <argp.h>
+#include <stdlib.h>
+
+#include "prelink.h"
+#include "layout.h"
+
+struct opd_rec
+{
+  GElf_Addr fn, toc, chain;
+};
+
+struct opd_lib
+{
+  GElf_Addr start, size;
+  GElf_Addr table[1];
+};
+
+static int
+ppc64_adjust_section (DSO *dso, int n, GElf_Addr start, GElf_Addr adjust)
+{
+  if (dso->shdr[n].sh_type == SHT_PROGBITS
+      && ! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                          dso->shdr[n].sh_name), ".got"))
+    {
+      Elf64_Addr data;
+
+      /* .got[0]-0x8000 points to .got, it needs to be adjusted.  */
+      data = read_ube64 (dso, dso->shdr[n].sh_addr);
+      if (addr_to_sec (dso, data - 0x8000) == n
+         && data - 0x8000 == dso->shdr[n].sh_addr)
+       write_be64 (dso, dso->shdr[n].sh_addr, data + adjust);
+    }
+  return 0;
+}
+
+static int
+ppc64_adjust_dyn (DSO *dso, int n, GElf_Dyn *dyn, GElf_Addr start,
+                 GElf_Addr adjust)
+{
+  if (dyn->d_tag == DT_PPC64_GLINK && dyn->d_un.d_ptr >= start)
+    {
+      dyn->d_un.d_ptr += adjust;
+      return 1;
+    }
+
+  return 0;
+}
+
+static int
+ppc64_adjust_rel (DSO *dso, GElf_Rel *rel, GElf_Addr start,
+                 GElf_Addr adjust)
+{
+  error (0, 0, "%s: PowerPC64 doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+ppc64_adjust_rela (DSO *dso, GElf_Rela *rela, GElf_Addr start,
+                  GElf_Addr adjust)
+{
+  if (GELF_R_TYPE (rela->r_info) == R_PPC64_RELATIVE
+      || GELF_R_TYPE (rela->r_info) == R_PPC64_IRELATIVE)
+    {
+      GElf_Addr val = read_ube64 (dso, rela->r_offset);
+
+      if (val == rela->r_addend && val >= start)
+       write_be64 (dso, rela->r_offset, val + adjust);
+      if (rela->r_addend >= start)
+       rela->r_addend += adjust;
+    }
+  else if (GELF_R_TYPE (rela->r_info) == R_PPC64_JMP_IREL)
+    {
+      if (rela->r_addend >= start)
+       rela->r_addend += adjust;
+    }
+  return 0;
+}
+
+static int
+ppc64_prelink_rel (struct prelink_info *info, GElf_Rel *rel,
+                  GElf_Addr reladdr)
+{
+  error (0, 0, "%s: PowerPC64 doesn't support REL relocs", info->dso->filename);
+  return 1;
+}
+
+static int
+ppc64_fixup_plt (struct prelink_info *info, GElf_Rela *rela, GElf_Addr value)
+{
+  DSO *dso = info->dso;
+  int sec, i;
+  size_t n;
+  struct opd_rec rec;
+
+  if (value == 0)
+    {
+      rec.fn = 0;
+      rec.toc = 0;
+      rec.chain = 0;
+    }
+  else if ((sec = addr_to_sec (dso, value)) != -1)
+    {
+      rec.fn = read_ube64 (dso, value);
+      rec.toc = read_ube64 (dso, value + 8);
+      rec.chain = read_ube64 (dso, value + 16);
+    }
+  else
+    {
+      for (i = 0; i < info->ent->ndepends; ++i)
+       if (info->ent->depends[i]->opd
+           && info->ent->depends[i]->opd->start <= value
+           && (info->ent->depends[i]->opd->start
+               + info->ent->depends[i]->opd->size) > value)
+       break;
+
+      if (i == info->ent->ndepends)
+       {
+         error (0, 0, "%s: R_PPC64_JMP_SLOT doesn't resolve to an .opd address",
+                dso->filename);
+         return 1;
+       }
+      if ((value - info->ent->depends[i]->opd->start) % 8)
+       {
+         error (0, 0, "%s: R_PPC64_JMP_SLOT doesn't resolve to valid .opd section location",
+                dso->filename);
+         return 1;
+       }
+      n = (value - info->ent->depends[i]->opd->start) / 8;
+      rec.fn = info->ent->depends[i]->opd->table[n];
+      rec.toc = info->ent->depends[i]->opd->table[n + 1];
+      rec.chain = info->ent->depends[i]->opd->table[n + 2];
+    }
+  write_be64 (dso, rela->r_offset, rec.fn);
+  write_be64 (dso, rela->r_offset + 8, rec.toc);
+  write_be64 (dso, rela->r_offset + 16, rec.chain);
+  return 0;
+}
+
+static int
+ppc64_prelink_rela (struct prelink_info *info, GElf_Rela *rela,
+                   GElf_Addr relaaddr)
+{
+  DSO *dso = info->dso;
+  GElf_Addr value;
+
+  if (GELF_R_TYPE (rela->r_info) == R_PPC64_NONE
+      || GELF_R_TYPE (rela->r_info) == R_PPC64_IRELATIVE
+      || GELF_R_TYPE (rela->r_info) == R_PPC64_JMP_IREL)
+    return 0;
+  else if (GELF_R_TYPE (rela->r_info) == R_PPC64_RELATIVE)
+    {
+      write_be64 (dso, rela->r_offset, rela->r_addend);
+      return 0;
+    }
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  value += rela->r_addend;
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_PPC64_GLOB_DAT:
+    case R_PPC64_ADDR64:
+    case R_PPC64_UADDR64:
+      write_be64 (dso, rela->r_offset, value);
+      break;
+    case R_PPC64_DTPREL64:
+      write_be64 (dso, rela->r_offset, value - 0x8000);
+      break;
+    case R_PPC64_ADDR32:
+    case R_PPC64_UADDR32:
+      write_be32 (dso, rela->r_offset, value);
+      break;
+    case R_PPC64_JMP_SLOT:
+      return ppc64_fixup_plt (info, rela, value);
+    case R_PPC64_ADDR16:
+    case R_PPC64_UADDR16:
+    case R_PPC64_ADDR16_LO:
+      write_be16 (dso, rela->r_offset, value);
+      break;
+    case R_PPC64_DTPREL16:
+    case R_PPC64_DTPREL16_LO:
+      write_be16 (dso, rela->r_offset, value - 0x8000);
+      break;
+    case R_PPC64_ADDR16_HI:
+    case R_PPC64_DTPREL16_HA:
+      write_be16 (dso, rela->r_offset, value >> 16);
+      break;
+    case R_PPC64_DTPREL16_HI:
+      write_be16 (dso, rela->r_offset, (value - 0x8000) >> 16);
+      break;
+    case R_PPC64_ADDR16_HA:
+      write_be16 (dso, rela->r_offset, (value + 0x8000) >> 16);
+      break;
+    case R_PPC64_ADDR16_HIGHER:
+      write_be16 (dso, rela->r_offset, value >> 32);
+      break;
+    case R_PPC64_ADDR16_HIGHERA:
+      write_be16 (dso, rela->r_offset, (value + 0x8000) >> 32);
+      break;
+    case R_PPC64_ADDR16_HIGHEST:
+      write_be16 (dso, rela->r_offset, value >> 48);
+      break;
+    case R_PPC64_ADDR16_HIGHESTA:
+      write_be16 (dso, rela->r_offset, (value + 0x8000) >> 48);
+      break;
+    case R_PPC64_ADDR16_LO_DS:
+    case R_PPC64_ADDR16_DS:
+      write_be16 (dso, rela->r_offset,
+                 (value & 0xfffc) | read_ube16 (dso, rela->r_offset & 3));
+      break;
+    case R_PPC64_ADDR24:
+      write_be32 (dso, rela->r_offset,
+                 (value & 0x03fffffc)
+                 | (read_ube32 (dso, rela->r_offset) & 0xfc000003));
+      break;
+    case R_PPC64_ADDR14:
+      write_be32 (dso, rela->r_offset,
+                 (value & 0xfffc)
+                 | (read_ube32 (dso, rela->r_offset) & 0xffff0003));
+      break;
+    case R_PPC64_ADDR14_BRTAKEN:
+    case R_PPC64_ADDR14_BRNTAKEN:
+      write_be32 (dso, rela->r_offset,
+                 (value & 0xfffc)
+                 | (read_ube32 (dso, rela->r_offset) & 0xffdf0003)
+                 | ((((GELF_R_TYPE (rela->r_info) == R_PPC64_ADDR14_BRTAKEN)
+                      << 21)
+                     ^ (value >> 42)) & 0x00200000));
+      break;
+    case R_PPC64_REL24:
+      write_be32 (dso, rela->r_offset,
+                 ((value - rela->r_offset) & 0x03fffffc)
+                 | (read_ube32 (dso, rela->r_offset) & 0xfc000003));
+      break;
+    case R_PPC64_REL32:
+      write_be32 (dso, rela->r_offset, value - rela->r_offset);
+      break;
+    case R_PPC64_REL64:
+      write_be64 (dso, rela->r_offset, value - rela->r_offset);
+      break;
+    /* DTPMOD64 and TPREL* is impossible to predict in shared libraries
+       unless prelink sets the rules.  */
+    case R_PPC64_DTPMOD64:
+      if (dso->ehdr.e_type == ET_EXEC)
+       {
+         error (0, 0, "%s: R_PPC64_DTPMOD64 reloc in executable?",
+                dso->filename);
+         return 1;
+       }
+      break;
+    case R_PPC64_TPREL64:
+    case R_PPC64_TPREL16:
+    case R_PPC64_TPREL16_LO:
+    case R_PPC64_TPREL16_HI:
+    case R_PPC64_TPREL16_HA:
+      if (dso->ehdr.e_type == ET_EXEC && info->resolvetls)
+       {
+         value += info->resolvetls->offset - 0x7000;
+         switch (GELF_R_TYPE (rela->r_info))
+           {
+           case R_PPC64_TPREL64:
+             write_be64 (dso, rela->r_offset, value);
+             break;
+           case R_PPC64_TPREL16:
+           case R_PPC64_TPREL16_LO:
+             write_be16 (dso, rela->r_offset, value);
+             break;
+           case R_PPC64_TPREL16_HI:
+             write_be16 (dso, rela->r_offset, value >> 16);
+             break;
+           case R_PPC64_TPREL16_HA:
+             write_be16 (dso, rela->r_offset, (value + 0x8000) >> 16);
+             break;
+           }
+       }
+      break;
+    case R_PPC64_COPY:
+      if (dso->ehdr.e_type == ET_EXEC)
+       /* COPY relocs are handled specially in generic code.  */
+       return 0;
+      error (0, 0, "%s: R_PPC64_COPY reloc in shared library?", dso->filename);
+      return 1;
+    default:
+      error (0, 0, "%s: Unknown ppc relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+ppc64_apply_conflict_rela (struct prelink_info *info, GElf_Rela *rela,
+                          char *buf, GElf_Addr dest_addr)
+{
+  GElf_Rela *ret;
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_PPC64_ADDR64:
+    case R_PPC64_UADDR64:
+      buf_write_be64 (buf, rela->r_addend);
+      break;
+    case R_PPC64_ADDR32:
+    case R_PPC64_UADDR32:
+      buf_write_be32 (buf, rela->r_addend);
+      break;
+    case R_PPC64_ADDR16:
+    case R_PPC64_UADDR16:
+      buf_write_be16 (buf, rela->r_addend);
+      break;
+    case R_PPC64_IRELATIVE:
+      if (dest_addr == 0)
+       return 5;
+      ret = prelink_conflict_add_rela (info);
+      if (ret == NULL)
+       return 1;
+      ret->r_offset = dest_addr;
+      ret->r_info = GELF_R_INFO (0, R_PPC64_IRELATIVE);
+      ret->r_addend = rela->r_addend;
+      break;
+    default:
+      abort ();
+    }
+  return 0;
+}
+
+static int
+ppc64_apply_rel (struct prelink_info *info, GElf_Rel *rel, char *buf)
+{
+  error (0, 0, "%s: PowerPC64 doesn't support REL relocs", info->dso->filename);
+  return 1;
+}
+
+static int
+ppc64_apply_rela (struct prelink_info *info, GElf_Rela *rela, char *buf)
+{
+  GElf_Addr value;
+
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  value += rela->r_addend;
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_PPC64_NONE:
+      break;
+    case R_PPC64_GLOB_DAT:
+    case R_PPC64_ADDR64:
+    case R_PPC64_UADDR64:
+      buf_write_be64 (buf, value);
+      break;
+    case R_PPC64_ADDR32:
+    case R_PPC64_UADDR32:
+      buf_write_be32 (buf, value);
+      break;
+    case R_PPC64_ADDR16_HA:
+      value += 0x8000;
+      /* FALLTHROUGH  */
+    case R_PPC64_ADDR16_HI:
+      value = value >> 16;
+      /* FALLTHROUGH  */
+    case R_PPC64_ADDR16:
+    case R_PPC64_UADDR16:
+    case R_PPC64_ADDR16_LO:
+      buf_write_be16 (buf, value);
+      break;
+    case R_PPC64_ADDR16_HIGHERA:
+      value += 0x8000;
+      /* FALLTHROUGH  */
+    case R_PPC64_ADDR16_HIGHER:
+      buf_write_be16 (buf, value >> 32);
+      break;
+    case R_PPC64_ADDR16_HIGHESTA:
+      value += 0x8000;
+      /* FALLTHROUGH  */
+    case R_PPC64_ADDR16_HIGHEST:
+      buf_write_be16 (buf, value >> 48);
+      break;
+    case R_PPC64_ADDR16_LO_DS:
+    case R_PPC64_ADDR16_DS:
+      buf_write_be16 (buf, (value & 0xfffc)
+                          | (buf_read_ube16 (buf) & 3));
+      break;
+    case R_PPC64_ADDR24:
+      buf_write_be32 (buf, (value & 0x03fffffc)
+                          | (buf_read_ube32 (buf) & 0xfc000003));
+      break;
+    case R_PPC64_ADDR14:
+      buf_write_be32 (buf, (value & 0xfffc)
+                          | (buf_read_ube32 (buf) & 0xffff0003));
+      break;
+    case R_PPC64_ADDR14_BRTAKEN:
+    case R_PPC64_ADDR14_BRNTAKEN:
+      buf_write_be32 (buf, (value & 0xfffc)
+                          | (buf_read_ube32 (buf) & 0xffdf0003)
+                          | ((((GELF_R_TYPE (rela->r_info)
+                                == R_PPC64_ADDR14_BRTAKEN) << 21)
+                              ^ (value >> 42)) & 0x00200000));
+      break;
+    case R_PPC64_REL24:
+      buf_write_be32 (buf, ((value - rela->r_offset) & 0x03fffffc)
+                          | (buf_read_ube32 (buf) & 0xfc000003));
+      break;
+    case R_PPC64_REL32:
+      buf_write_be32 (buf, value - rela->r_offset);
+      break;
+    case R_PPC64_REL64:
+      buf_write_be64 (buf, value - rela->r_offset);
+      break;
+    case R_PPC64_RELATIVE:
+      error (0, 0, "%s: R_PPC64_RELATIVE in ET_EXEC object?",
+            info->dso->filename);
+      return 1;
+    default:
+      return 1;
+    }
+  return 0;
+}
+
+static int
+ppc64_prelink_conflict_rel (DSO *dso, struct prelink_info *info,
+                           GElf_Rel *rel, GElf_Addr reladdr)
+{
+  error (0, 0, "%s: PowerPC64 doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+ppc64_prelink_conflict_rela (DSO *dso, struct prelink_info *info,
+                            GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  GElf_Addr value;
+  struct prelink_conflict *conflict;
+  struct prelink_tls *tls;
+  GElf_Rela *ret;
+  int r_type;
+
+  if (GELF_R_TYPE (rela->r_info) == R_PPC64_RELATIVE
+      || GELF_R_TYPE (rela->r_info) == R_PPC64_NONE)
+    /* Fast path: nothing to do.  */
+    return 0;
+  conflict = prelink_conflict (info, GELF_R_SYM (rela->r_info),
+                              GELF_R_TYPE (rela->r_info));
+  if (conflict == NULL)
+    {
+      switch (GELF_R_TYPE (rela->r_info))
+       {
+       /* Even local DTPMOD and TPREL relocs need conflicts.  */
+       case R_PPC64_DTPMOD64:
+       case R_PPC64_TPREL64:
+       case R_PPC64_TPREL16:
+       case R_PPC64_TPREL16_LO:
+       case R_PPC64_TPREL16_HI:
+       case R_PPC64_TPREL16_HA:
+         if (info->curtls == NULL || info->dso == dso)
+           return 0;
+         break;
+       /* Similarly IRELATIVE relocations always need conflicts.  */
+       case R_PPC64_IRELATIVE:
+       case R_PPC64_JMP_IREL:
+         break;
+       default:
+         return 0;
+       }
+      value = 0;
+    }
+  else if (info->dso == dso && !conflict->ifunc)
+    return 0;
+  else
+    {
+      /* DTPREL wants to see only real conflicts, not lookups
+        with reloc_class RTYPE_CLASS_TLS.  */
+      if (conflict->lookup.tls == conflict->conflict.tls
+         && conflict->lookupval == conflict->conflictval)
+       switch (GELF_R_TYPE (rela->r_info))
+         {
+         case R_PPC64_DTPREL64:
+         case R_PPC64_DTPREL16:
+         case R_PPC64_DTPREL16_LO:
+         case R_PPC64_DTPREL16_HI:
+         case R_PPC64_DTPREL16_HA:
+           return 0;
+         }
+
+      value = conflict_lookup_value (conflict);
+    }
+  ret = prelink_conflict_add_rela (info);
+  if (ret == NULL)
+    return 1;
+  ret->r_offset = rela->r_offset;
+  value += rela->r_addend;
+  r_type = GELF_R_TYPE (rela->r_info);
+  switch (r_type)
+    {
+    case R_PPC64_GLOB_DAT:
+      r_type = R_PPC64_ADDR64;
+    case R_PPC64_ADDR64:
+    case R_PPC64_UADDR64:
+      if (conflict != NULL && conflict->ifunc)
+       r_type = R_PPC64_IRELATIVE;
+      break;
+    case R_PPC64_IRELATIVE:
+    case R_PPC64_JMP_IREL:
+      break;
+    case R_PPC64_JMP_SLOT:
+      if (conflict != NULL && conflict->ifunc)
+       r_type = R_PPC64_JMP_IREL;
+      break;
+    case R_PPC64_ADDR32:
+    case R_PPC64_UADDR32:
+      value = (Elf32_Sword) value;
+      break;
+    case R_PPC64_ADDR16_HA:
+      value += 0x8000;
+      /* FALLTHROUGH  */
+    case R_PPC64_ADDR16_HI:
+      value = value >> 16;
+      /* FALLTHROUGH  */
+    case R_PPC64_ADDR16:
+    case R_PPC64_UADDR16:
+    case R_PPC64_ADDR16_LO:
+      if (r_type != R_PPC64_UADDR16)
+       r_type = R_PPC64_ADDR16;
+      value = ((value & 0xffff) ^ 0x8000) - 0x8000;
+      break;
+    case R_PPC64_ADDR16_HIGHERA:
+      value += 0x8000;
+      /* FALLTHROUGH  */
+    case R_PPC64_ADDR16_HIGHER:
+      r_type = R_PPC64_ADDR16;
+      value = (((value >> 32) & 0xffff) ^ 0x8000) - 0x8000;
+      break;
+    case R_PPC64_ADDR16_HIGHESTA:
+      value += 0x8000;
+      /* FALLTHROUGH  */
+    case R_PPC64_ADDR16_HIGHEST:
+      r_type = R_PPC64_ADDR16;
+      value = ((Elf64_Sxword) value) >> 48;
+      break;
+    case R_PPC64_ADDR16_LO_DS:
+    case R_PPC64_ADDR16_DS:
+      r_type = R_PPC64_ADDR16;
+      value = ((value & 0xffff) ^ 0x8000) - 0x8000;
+      value |= read_ube16 (dso, rela->r_offset) & 3;
+      break;
+    case R_PPC64_ADDR24:
+      r_type = R_PPC64_ADDR32;
+      value = (value & 0x03fffffc)
+             | (read_ube32 (dso, rela->r_offset) & 0xfc000003);
+      value = (Elf32_Sword) value;
+      break;
+    case R_PPC64_ADDR14:
+      r_type = R_PPC64_ADDR32;
+      value = (value & 0xfffc)
+             | (read_ube32 (dso, rela->r_offset) & 0xffff0003);
+      value = (Elf32_Sword) value;
+      break;
+    case R_PPC64_ADDR14_BRTAKEN:
+    case R_PPC64_ADDR14_BRNTAKEN:
+      r_type = R_PPC64_ADDR32;
+      value = (value & 0xfffc)
+             | (read_ube32 (dso, rela->r_offset) & 0xffdf0003)
+             | ((((r_type == R_PPC64_ADDR14_BRTAKEN) << 21)
+                 ^ (value >> 42)) & 0x00200000);
+      value = (Elf32_Sword) value;
+      break;
+    case R_PPC64_REL24:
+      r_type = R_PPC64_ADDR32;
+      value = ((value - rela->r_offset) & 0x03fffffc)
+             | (read_ube32 (dso, rela->r_offset) & 0xfc000003);
+      value = (Elf32_Sword) value;
+      break;
+    case R_PPC64_REL32:
+      r_type = R_PPC64_ADDR32;
+      value -= rela->r_offset;
+      value = (Elf32_Sword) value;
+      break;
+    case R_PPC64_REL64:
+      r_type = R_PPC64_ADDR64;
+      value -= rela->r_offset;
+      break;
+    case R_PPC64_DTPMOD64:
+    case R_PPC64_DTPREL64:
+    case R_PPC64_DTPREL16:
+    case R_PPC64_DTPREL16_LO:
+    case R_PPC64_DTPREL16_HI:
+    case R_PPC64_DTPREL16_HA:
+    case R_PPC64_TPREL64:
+    case R_PPC64_TPREL16:
+    case R_PPC64_TPREL16_LO:
+    case R_PPC64_TPREL16_HI:
+    case R_PPC64_TPREL16_HA:
+      if (conflict != NULL
+         && (conflict->reloc_class != RTYPE_CLASS_TLS
+             || conflict->lookup.tls == NULL))
+       {
+         error (0, 0, "%s: TLS reloc not resolving to STT_TLS symbol",
+                dso->filename);
+         return 1;
+       }
+      tls = conflict ? conflict->lookup.tls : info->curtls;
+      r_type = R_PPC64_ADDR16;
+      switch (GELF_R_TYPE (rela->r_info))
+       {
+       case R_PPC64_DTPMOD64:
+         r_type = R_PPC64_ADDR64;
+         value = tls->modid;
+         break;
+       case R_PPC64_DTPREL64:
+         r_type = R_PPC64_ADDR64;
+         value -= 0x8000;
+         break;
+       case R_PPC64_DTPREL16:
+       case R_PPC64_DTPREL16_LO:
+         value -= 0x8000;
+         break;
+       case R_PPC64_DTPREL16_HI:
+         value = (value - 0x8000) >> 16;
+         break;
+       case R_PPC64_DTPREL16_HA:
+         value >>= 16;
+         break;
+       case R_PPC64_TPREL64:
+         r_type = R_PPC64_ADDR64;
+         value += tls->offset - 0x7000;
+         break;
+       case R_PPC64_TPREL16:
+       case R_PPC64_TPREL16_LO:
+         value += tls->offset - 0x7000;
+         break;
+       case R_PPC64_TPREL16_HI:
+         value = (value + tls->offset - 0x7000) >> 16;
+         break;
+       case R_PPC64_TPREL16_HA:
+         value = (value + tls->offset - 0x7000 + 0x8000) >> 16;
+         break;
+       }
+      if (r_type == R_PPC64_ADDR16)
+       value = ((value & 0xffff) ^ 0x8000) - 0x8000;
+      break;
+    default:
+      error (0, 0, "%s: Unknown PowerPC64 relocation type %d", dso->filename,
+            r_type);
+      return 1;
+    }
+  if (conflict != NULL && conflict->ifunc
+      && r_type != R_PPC64_IRELATIVE && r_type != R_PPC64_JMP_IREL)
+    {
+      error (0, 0, "%s: relocation %d against IFUNC symbol", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  ret->r_info = GELF_R_INFO (0, r_type);
+  ret->r_addend = value;
+  return 0;
+}
+
+static int
+ppc64_rel_to_rela (DSO *dso, GElf_Rel *rel, GElf_Rela *rela)
+{
+  error (0, 0, "%s: PowerPC64 doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+ppc64_need_rel_to_rela (DSO *dso, int first, int last)
+{
+  return 0;
+}
+
+static int
+ppc64_undo_prelink_rela (DSO *dso, GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_PPC64_NONE:
+      return 0;
+    case R_PPC64_JMP_SLOT:
+      /* .plt section will become SHT_NOBITS.  */
+      return 0;
+    case R_PPC64_JMP_IREL:
+      /* .iplt section will become SHT_NOBITS.  */
+      return 0;
+    case R_PPC64_RELATIVE:
+    case R_PPC64_ADDR64:
+    case R_PPC64_IRELATIVE:
+      write_be64 (dso, rela->r_offset, rela->r_addend);
+      break;
+    case R_PPC64_GLOB_DAT:
+    case R_PPC64_UADDR64:
+    case R_PPC64_DTPREL64:
+    case R_PPC64_TPREL64:
+    case R_PPC64_DTPMOD64:
+    case R_PPC64_REL64:
+      write_be64 (dso, rela->r_offset, 0);
+      break;
+    case R_PPC64_ADDR32:
+    case R_PPC64_UADDR32:
+    case R_PPC64_REL32:
+      write_be32 (dso, rela->r_offset, 0);
+      break;
+    case R_PPC64_ADDR16_HA:
+    case R_PPC64_DTPREL16_HA:
+    case R_PPC64_TPREL16_HA:
+    case R_PPC64_ADDR16_HI:
+    case R_PPC64_DTPREL16_HI:
+    case R_PPC64_TPREL16_HI:
+    case R_PPC64_ADDR16:
+    case R_PPC64_UADDR16:
+    case R_PPC64_ADDR16_LO:
+    case R_PPC64_DTPREL16:
+    case R_PPC64_TPREL16:
+    case R_PPC64_DTPREL16_LO:
+    case R_PPC64_TPREL16_LO:
+    case R_PPC64_ADDR16_HIGHERA:
+    case R_PPC64_ADDR16_HIGHER:
+    case R_PPC64_ADDR16_HIGHESTA:
+    case R_PPC64_ADDR16_HIGHEST:
+    case R_PPC64_ADDR16_LO_DS:
+    case R_PPC64_ADDR16_DS:
+      write_be16 (dso, rela->r_offset, 0);
+      break;
+    case R_PPC64_ADDR24:
+    case R_PPC64_REL24:
+      write_be32 (dso, rela->r_offset,
+                 read_ube32 (dso, rela->r_offset) & 0xfc000003);
+      break;
+    case R_PPC64_ADDR14:
+      write_be32 (dso, rela->r_offset,
+                 read_ube32 (dso, rela->r_offset) & 0xffff0003);
+      break;
+    case R_PPC64_ADDR14_BRTAKEN:
+    case R_PPC64_ADDR14_BRNTAKEN:
+      write_be32 (dso, rela->r_offset,
+                 read_ube32 (dso, rela->r_offset) & 0xffdf0003);
+      break;
+    case R_PPC64_COPY:
+      if (dso->ehdr.e_type == ET_EXEC)
+       /* COPY relocs are handled specially in generic code.  */
+       return 0;
+      error (0, 0, "%s: R_PPC64_COPY reloc in shared library?", dso->filename);
+      return 1;
+    default:
+      error (0, 0, "%s: Unknown ppc relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+ppc64_reloc_size (int reloc_type)
+{
+  switch (reloc_type)
+    {
+    case R_PPC64_ADDR16:
+    case R_PPC64_UADDR16:
+    case R_PPC64_ADDR16_LO:
+    case R_PPC64_ADDR16_HA:
+    case R_PPC64_ADDR16_HI:
+    case R_PPC64_ADDR16_LO_DS:
+    case R_PPC64_ADDR16_DS:
+    case R_PPC64_ADDR16_HIGHER:
+    case R_PPC64_ADDR16_HIGHERA:
+    case R_PPC64_ADDR16_HIGHEST:
+    case R_PPC64_ADDR16_HIGHESTA:
+    case R_PPC64_DTPREL16:
+    case R_PPC64_DTPREL16_LO:
+    case R_PPC64_DTPREL16_HI:
+    case R_PPC64_DTPREL16_HA:
+    case R_PPC64_TPREL16:
+    case R_PPC64_TPREL16_LO:
+    case R_PPC64_TPREL16_HI:
+    case R_PPC64_TPREL16_HA:
+      return 2;
+    case R_PPC64_GLOB_DAT:
+    case R_PPC64_ADDR64:
+    case R_PPC64_UADDR64:
+    case R_PPC64_REL64:
+    case R_PPC64_DTPMOD64:
+    case R_PPC64_DTPREL64:
+    case R_PPC64_TPREL64:
+    case R_PPC64_IRELATIVE:
+      return 8;
+    default:
+      break;
+    }
+  return 4;
+}
+
+static int
+ppc64_reloc_class (int reloc_type)
+{
+  switch (reloc_type)
+    {
+    case R_PPC64_COPY: return RTYPE_CLASS_COPY | RTYPE_CLASS_PLT;
+    default:
+      if (reloc_type >= R_PPC64_DTPMOD64
+         && reloc_type <= R_PPC64_TPREL16_HIGHESTA)
+       return RTYPE_CLASS_TLS;
+      return RTYPE_CLASS_PLT;
+    }
+}
+
+static int
+ppc64_read_opd (DSO *dso, struct prelink_entry *ent)
+{
+  int opd;
+  GElf_Addr n, s;
+
+  free (ent->opd);
+  ent->opd = NULL;
+  for (opd = 1; opd < dso->ehdr.e_shnum; ++opd)
+    if (dso->shdr[opd].sh_type == SHT_PROGBITS
+       && ! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                            dso->shdr[opd].sh_name), ".opd"))
+      break;
+  if (opd == dso->ehdr.e_shnum)
+    return 0;
+  ent->opd = malloc (sizeof (struct opd_lib) + dso->shdr[opd].sh_size);
+  /* The error will happen only when we'll need the opd.  */
+  if (ent->opd == NULL)
+    return 0;
+  s = dso->shdr[opd].sh_addr;
+  for (n = 0; n < dso->shdr[opd].sh_size / 8; ++n, s += 8)
+    ent->opd->table[n] = read_ube64 (dso, s);
+  ent->opd->start = dso->shdr[opd].sh_addr;
+  ent->opd->size = dso->shdr[opd].sh_size;
+  return 0;
+}
+
+static int
+ppc64_free_opd (struct prelink_entry *ent)
+{
+  free (ent->opd);
+  ent->opd = NULL;
+  return 0;
+}
+
+PL_ARCH = {
+  .name = "PowerPC",
+  .class = ELFCLASS64,
+  .machine = EM_PPC64,
+  .alternate_machine = { EM_NONE },
+  .R_JMP_SLOT = R_PPC64_JMP_SLOT,
+  .R_COPY = R_PPC64_COPY,
+  .R_RELATIVE = R_PPC64_RELATIVE,
+  .rtype_class_valid = RTYPE_CLASS_PLT,
+  .dynamic_linker = "/lib64/ld64.so.1",
+  .adjust_section = ppc64_adjust_section,
+  .adjust_dyn = ppc64_adjust_dyn,
+  .adjust_rel = ppc64_adjust_rel,
+  .adjust_rela = ppc64_adjust_rela,
+  .prelink_rel = ppc64_prelink_rel,
+  .prelink_rela = ppc64_prelink_rela,
+  .prelink_conflict_rel = ppc64_prelink_conflict_rel,
+  .prelink_conflict_rela = ppc64_prelink_conflict_rela,
+  .apply_conflict_rela = ppc64_apply_conflict_rela,
+  .apply_rel = ppc64_apply_rel,
+  .apply_rela = ppc64_apply_rela,
+  .rel_to_rela = ppc64_rel_to_rela,
+  .need_rel_to_rela = ppc64_need_rel_to_rela,
+  .reloc_size = ppc64_reloc_size,
+  .reloc_class = ppc64_reloc_class,
+  .read_opd = ppc64_read_opd,
+  .free_opd = ppc64_free_opd,
+  .max_reloc_size = 8,
+  .undo_prelink_rela = ppc64_undo_prelink_rela,
+  /* Although TASK_UNMAPPED_BASE is 0x8000000000, we leave some
+     area so that mmap of /etc/ld.so.cache and ld.so's malloc
+     does not take some library's VA slot.
+     Also, if this guard area isn't too small, typically
+     even dlopened libraries will get the slots they desire.  */
+  .mmap_base = 0x8001000000LL,
+  .mmap_end =  0x8100000000LL,
+  .max_page_size = 0x10000,
+  .page_size = 0x1000
+};
diff --git a/src/arch-s390.c b/src/arch-s390.c
new file mode 100644 (file)
index 0000000..829392e
--- /dev/null
@@ -0,0 +1,607 @@
+/* Copyright (C) 2001, 2002, 2003, 2004, 2009, 2010 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <locale.h>
+#include <error.h>
+#include <argp.h>
+#include <stdlib.h>
+
+#include "prelink.h"
+
+static int
+s390_adjust_dyn (DSO *dso, int n, GElf_Dyn *dyn, GElf_Addr start,
+                GElf_Addr adjust)
+{
+  if (dyn->d_tag == DT_PLTGOT)
+    {
+      int sec = addr_to_sec (dso, dyn->d_un.d_ptr);
+      Elf64_Addr data;
+
+      if (sec == -1)
+       return 0;
+
+      data = read_ube32 (dso, dyn->d_un.d_ptr);
+      /* If .got.plt[0] points to _DYNAMIC, it needs to be adjusted.  */
+      if (data == dso->shdr[n].sh_addr && data >= start)
+       write_be32 (dso, dyn->d_un.d_ptr, data + adjust);
+
+      data = read_ube32 (dso, dyn->d_un.d_ptr + 4);
+      /* If .got.plt[1] points to .plt + 0x2c, it needs to be adjusted.  */
+      if (data && data >= start)
+       {
+         int i;
+
+         for (i = 1; i < dso->ehdr.e_shnum; i++)
+           if (data == dso->shdr[i].sh_addr + 0x2c
+               && dso->shdr[i].sh_type == SHT_PROGBITS
+               && strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                       dso->shdr[i].sh_name), ".plt") == 0)
+             {
+               write_be32 (dso, dyn->d_un.d_ptr + 4, data + adjust);
+               break;
+             }
+       }
+    }
+  return 0;
+}
+
+static int
+s390_adjust_rel (DSO *dso, GElf_Rel *rel, GElf_Addr start,
+                GElf_Addr adjust)
+{
+  error (0, 0, "%s: S390 doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+s390_adjust_rela (DSO *dso, GElf_Rela *rela, GElf_Addr start,
+                 GElf_Addr adjust)
+{
+  Elf32_Addr addr;
+
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_390_RELATIVE:
+      if ((Elf32_Addr) rela->r_addend >= start)
+       {
+         addr = read_ube32 (dso, rela->r_offset);
+         if (addr == rela->r_addend)
+           write_be32 (dso, rela->r_offset, addr + adjust);
+         rela->r_addend += (Elf32_Sword) adjust;
+       }
+      break;
+    case R_390_JMP_SLOT:
+      addr = read_ube32 (dso, rela->r_offset);
+      if (addr >= start)
+       write_be32 (dso, rela->r_offset, addr + adjust);
+      break;
+    }
+  return 0;
+}
+
+static int
+s390_prelink_rel (struct prelink_info *info, GElf_Rel *rel, GElf_Addr reladdr)
+{
+  error (0, 0, "%s: S390 doesn't support REL relocs", info->dso->filename);
+  return 1;
+}
+
+static int
+s390_prelink_rela (struct prelink_info *info, GElf_Rela *rela,
+                  GElf_Addr relaaddr)
+{
+  DSO *dso = info->dso;
+  GElf_Addr value;
+
+  if (GELF_R_TYPE (rela->r_info) == R_390_NONE)
+    return 0;
+  else if (GELF_R_TYPE (rela->r_info) == R_390_RELATIVE)
+    {
+      write_be32 (dso, rela->r_offset, rela->r_addend);
+      return 0;
+    }
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  value += rela->r_addend;
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_390_GLOB_DAT:
+    case R_390_JMP_SLOT:
+      write_be32 (dso, rela->r_offset, value - rela->r_addend);
+      break;
+    case R_390_32:
+      write_be32 (dso, rela->r_offset, value);
+      break;
+    case R_390_PC32:
+      write_be32 (dso, rela->r_offset, value - rela->r_offset);
+      break;
+    case R_390_PC32DBL:
+    case R_390_PLT32DBL:
+      write_be32 (dso, rela->r_offset,
+                 ((Elf32_Sword) (value - rela->r_offset)) >> 1);
+      break;
+    case R_390_16:
+      write_be16 (dso, rela->r_offset, value);
+      break;
+    case R_390_PC16:
+      write_be16 (dso, rela->r_offset, value - rela->r_offset);
+      break;
+    case R_390_PC16DBL:
+    case R_390_PLT16DBL:
+      write_be16 (dso, rela->r_offset,
+                 ((int16_t) (value - rela->r_offset)) >> 1);
+      break;
+    case R_390_8:
+      write_8 (dso, rela->r_offset, value);
+      break;
+    case R_390_TLS_DTPOFF:
+      write_be32 (dso, rela->r_offset, value);
+      break;
+    /* DTPMOD and TPOFF is impossible to predict in shared libraries
+       unless prelink sets the rules.  */
+    case R_390_TLS_DTPMOD:
+      if (dso->ehdr.e_type == ET_EXEC)
+       {
+         error (0, 0, "%s: R_390_TLS_DTPMOD reloc in executable?",
+                dso->filename);
+         return 1;
+       }
+      break;
+    case R_390_TLS_TPOFF:
+      if (dso->ehdr.e_type == ET_EXEC && info->resolvetls)
+       write_be32 (dso, rela->r_offset,
+                   value - info->resolvetls->offset);
+      break;
+    case R_390_COPY:
+      if (dso->ehdr.e_type == ET_EXEC)
+       /* COPY relocs are handled specially in generic code.  */
+       return 0;
+      error (0, 0, "%s: R_390_COPY reloc in shared library?", dso->filename);
+      return 1;
+    default:
+      error (0, 0, "%s: Unknown S390 relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+s390_apply_conflict_rela (struct prelink_info *info, GElf_Rela *rela,
+                         char *buf, GElf_Addr dest_addr)
+{
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_390_32:
+      buf_write_be32 (buf, rela->r_addend);
+      break;
+    case R_390_16:
+      buf_write_be16 (buf, rela->r_addend);
+      break;
+    case R_390_8:
+      buf_write_8 (buf, rela->r_addend);
+      break;
+    default:
+      abort ();
+    }
+  return 0;
+}
+
+static int
+s390_apply_rel (struct prelink_info *info, GElf_Rel *rel, char *buf)
+{
+  error (0, 0, "%s: S390 doesn't support REL relocs", info->dso->filename);
+  return 1;
+}
+
+static int
+s390_apply_rela (struct prelink_info *info, GElf_Rela *rela, char *buf)
+{
+  GElf_Addr value;
+
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  value += rela->r_addend;
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_390_NONE:
+      break;
+    case R_390_GLOB_DAT:
+    case R_390_JMP_SLOT:
+      buf_write_be32 (buf, value - rela->r_addend);
+      break;
+    case R_390_32:
+      buf_write_be32 (buf, value);
+      break;
+    case R_390_PC32:
+      buf_write_be32 (buf, value - rela->r_offset);
+      break;
+    case R_390_PC32DBL:
+    case R_390_PLT32DBL:
+      buf_write_be32 (buf, ((Elf32_Sword) (value - rela->r_offset)) >> 1);
+      break;
+    case R_390_16:
+      buf_write_be16 (buf, value);
+      break;
+    case R_390_PC16:
+      buf_write_be16 (buf, value - rela->r_offset);
+      break;
+    case R_390_PC16DBL:
+    case R_390_PLT16DBL:
+      buf_write_be16 (buf, ((int16_t) (value - rela->r_offset)) >> 1);
+      break;
+    case R_390_8:
+      buf_write_8 (buf, value);
+      break;
+    case R_390_COPY:
+      abort ();
+    case R_390_RELATIVE:
+      error (0, 0, "%s: R_390_RELATIVE in ET_EXEC object?", info->dso->filename);
+      return 1;
+    default:
+      return 1;
+    }
+  return 0;
+}
+
+static int
+s390_prelink_conflict_rel (DSO *dso, struct prelink_info *info, GElf_Rel *rel,
+                          GElf_Addr reladdr)
+{
+  error (0, 0, "%s: S390 doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+s390_prelink_conflict_rela (DSO *dso, struct prelink_info *info,
+                           GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  GElf_Addr value;
+  struct prelink_conflict *conflict;
+  struct prelink_tls *tls;
+  GElf_Rela *ret;
+
+  if (GELF_R_TYPE (rela->r_info) == R_390_RELATIVE
+      || GELF_R_TYPE (rela->r_info) == R_390_NONE
+      || info->dso == dso)
+    /* Fast path: nothing to do.  */
+    return 0;
+  conflict = prelink_conflict (info, GELF_R_SYM (rela->r_info),
+                              GELF_R_TYPE (rela->r_info));
+  if (conflict == NULL)
+    {
+      if (info->curtls == NULL)
+       return 0;
+      switch (GELF_R_TYPE (rela->r_info))
+       {
+       /* Even local DTPMOD and TPOFF relocs need conflicts.  */
+       case R_390_TLS_DTPMOD:
+       case R_390_TLS_TPOFF:
+         break;
+       default:
+         return 0;
+       }
+      value = 0;
+    }
+  else if (conflict->ifunc)
+    {
+      error (0, 0, "%s: STT_GNU_IFUNC not handled on S390 yet",
+            dso->filename);
+      return 1;
+    }
+  else
+    {
+      /* DTPOFF wants to see only real conflicts, not lookups
+        with reloc_class RTYPE_CLASS_TLS.  */
+      if (GELF_R_TYPE (rela->r_info) == R_390_TLS_DTPOFF
+         && conflict->lookup.tls == conflict->conflict.tls
+         && conflict->lookupval == conflict->conflictval)
+       return 0;
+
+      value = conflict_lookup_value (conflict);
+    }
+  ret = prelink_conflict_add_rela (info);
+  if (ret == NULL)
+    return 1;
+  ret->r_offset = rela->r_offset;
+  ret->r_info = GELF_R_INFO (0, R_390_32);
+  value += rela->r_addend;
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_390_GLOB_DAT:
+    case R_390_JMP_SLOT:
+      ret->r_addend = (Elf32_Sword) (value - rela->r_addend);
+      break;
+    case R_390_32:
+      ret->r_addend = (Elf32_Sword) value;
+      break;
+    case R_390_PC32:
+      ret->r_addend = (Elf32_Sword) (value - rela->r_offset);
+      break;
+    case R_390_PC32DBL:
+    case R_390_PLT32DBL:
+      ret->r_addend = ((Elf32_Sword) (value - rela->r_offset)) >> 1;
+      break;
+    case R_390_PC16:
+      value -= rela->r_offset;
+    case R_390_16:
+      ret->r_addend = (Elf32_Half) value;
+      ret->r_info = GELF_R_INFO (0, R_390_16);
+      break;
+    case R_390_PC16DBL:
+    case R_390_PLT16DBL:
+      ret->r_addend = (Elf32_Half) (((int16_t) (value - rela->r_offset)) >> 1);
+      ret->r_info = GELF_R_INFO (0, R_390_16);
+      break;
+    case R_390_8:
+      ret->r_addend = value & 0xff;
+      ret->r_info = GELF_R_INFO (0, R_390_8);
+      break;
+    case R_390_COPY:
+      error (0, 0, "R_390_COPY should not be present in shared libraries");
+      return 1;
+    case R_390_TLS_DTPMOD:
+    case R_390_TLS_DTPOFF:
+    case R_390_TLS_TPOFF:
+      if (conflict != NULL
+         && (conflict->reloc_class != RTYPE_CLASS_TLS
+             || conflict->lookup.tls == NULL))
+       {
+         error (0, 0, "%s: TLS reloc not resolving to STT_TLS symbol",
+                dso->filename);
+         return 1;
+       }
+      tls = conflict ? conflict->lookup.tls : info->curtls;
+      switch (GELF_R_TYPE (rela->r_info))
+       {
+       case R_390_TLS_DTPMOD:
+         ret->r_addend = tls->modid;
+         break;
+       case R_390_TLS_DTPOFF:
+         ret->r_addend = value;
+         break;
+       case R_390_TLS_TPOFF:
+         ret->r_addend = value - tls->offset;
+         break;
+       }
+      break;
+
+    default:
+      error (0, 0, "%s: Unknown S390 relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+s390_rel_to_rela (DSO *dso, GElf_Rel *rel, GElf_Rela *rela)
+{
+  error (0, 0, "%s: S390 doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+s390_need_rel_to_rela (DSO *dso, int first, int last)
+{
+  return 0;
+}
+
+static int
+s390_arch_prelink (struct prelink_info *info)
+{
+  DSO *dso;
+  int i;
+
+  dso = info->dso;
+  if (dso->info[DT_PLTGOT])
+    {
+      /* Write address of .plt + 0x2c into got[1].
+        .plt + 0x2c is what got[3] contains unless prelinking.  */
+      int sec = addr_to_sec (dso, dso->info[DT_PLTGOT]);
+      Elf64_Addr data;
+
+      if (sec == -1)
+       return 1;
+
+      for (i = 1; i < dso->ehdr.e_shnum; i++)
+       if (dso->shdr[i].sh_type == SHT_PROGBITS
+           && ! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                dso->shdr[i].sh_name),
+                        ".plt"))
+       break;
+
+      if (i == dso->ehdr.e_shnum)
+       return 0;
+      data = dso->shdr[i].sh_addr + 0x2c;
+      write_be32 (dso, dso->info[DT_PLTGOT] + 4, data);
+    }
+
+  return 0;
+}
+
+static int
+s390_arch_undo_prelink (DSO *dso)
+{
+  int i;
+
+  if (dso->info[DT_PLTGOT])
+    {
+      /* Clear got[1] if it contains address of .plt + 0x2c.  */
+      int sec = addr_to_sec (dso, dso->info[DT_PLTGOT]);
+      Elf32_Addr data;
+
+      if (sec == -1)
+       return 1;
+
+      for (i = 1; i < dso->ehdr.e_shnum; i++)
+       if (dso->shdr[i].sh_type == SHT_PROGBITS
+           && ! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                dso->shdr[i].sh_name),
+                        ".plt"))
+       break;
+
+      if (i == dso->ehdr.e_shnum)
+       return 0;
+      data = read_ube32 (dso, dso->info[DT_PLTGOT] + 4);
+      if (data == dso->shdr[i].sh_addr + 0x2c)
+       write_be32 (dso, dso->info[DT_PLTGOT] + 4, 0);
+    }
+
+  return 0;
+}
+
+static int
+s390_undo_prelink_rela (DSO *dso, GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  int sec;
+  const char *name;
+
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_390_NONE:
+    case R_390_RELATIVE:
+      break;
+    case R_390_JMP_SLOT:
+      sec = addr_to_sec (dso, rela->r_offset);
+      name = strptr (dso, dso->ehdr.e_shstrndx, dso->shdr[sec].sh_name);
+      if (sec == -1 || (strcmp (name, ".got") && strcmp (name, ".got.plt")))
+       {
+         error (0, 0, "%s: R_390_JMP_SLOT not pointing into .got section",
+                dso->filename);
+         return 1;
+       }
+      else
+       {
+         Elf32_Addr data = read_ube32 (dso, dso->shdr[sec].sh_addr + 4);
+
+         assert (rela->r_offset >= dso->shdr[sec].sh_addr + 12);
+         assert (((rela->r_offset - dso->shdr[sec].sh_addr) & 3) == 0);
+         write_be32 (dso, rela->r_offset,
+                     8 * (rela->r_offset - dso->shdr[sec].sh_addr - 12)
+                     + data);
+       }
+      break;
+    case R_390_GLOB_DAT:
+    case R_390_32:
+    case R_390_PC32:
+    case R_390_PC32DBL:
+    case R_390_PLT32DBL:
+    case R_390_TLS_DTPMOD:
+    case R_390_TLS_DTPOFF:
+    case R_390_TLS_TPOFF:
+      write_be32 (dso, rela->r_offset, 0);
+      break;
+    case R_390_16:
+    case R_390_PC16:
+    case R_390_PC16DBL:
+    case R_390_PLT16DBL:
+      write_be16 (dso, rela->r_offset, 0);
+      break;
+    case R_390_8:
+      write_8 (dso, rela->r_offset, 0);
+      break;
+    case R_390_COPY:
+      if (dso->ehdr.e_type == ET_EXEC)
+       /* COPY relocs are handled specially in generic code.  */
+       return 0;
+      error (0, 0, "%s: R_390_COPY reloc in shared library?", dso->filename);
+      return 1;
+    default:
+      error (0, 0, "%s: Unknown s390 relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+s390_reloc_size (int reloc_type)
+{
+  switch (reloc_type)
+    {
+    case R_390_16:
+    case R_390_PC16:
+    case R_390_PC16DBL:
+    case R_390_PLT16DBL:
+      return 2;
+    case R_390_8:
+      return 1;  
+    default:
+      return 4;
+    }
+}
+
+static int
+s390_reloc_class (int reloc_type)
+{
+  switch (reloc_type)
+    {
+    case R_390_COPY: return RTYPE_CLASS_COPY;
+    case R_390_JMP_SLOT: return RTYPE_CLASS_PLT;
+    case R_390_TLS_DTPMOD:
+    case R_390_TLS_DTPOFF:
+    case R_390_TLS_TPOFF:
+      return RTYPE_CLASS_TLS;
+    default: return RTYPE_CLASS_VALID;
+    }
+}
+
+PL_ARCH = {
+  .name = "S390",
+  .class = ELFCLASS32,
+  .machine = EM_S390,
+  .alternate_machine = { 0xA390 },
+  .R_JMP_SLOT = R_390_JMP_SLOT,
+  .R_COPY = R_390_COPY,
+  .R_RELATIVE = R_390_RELATIVE,
+  .rtype_class_valid = RTYPE_CLASS_VALID,
+  .dynamic_linker = "/lib/ld.so.1",
+  .adjust_dyn = s390_adjust_dyn,
+  .adjust_rel = s390_adjust_rel,
+  .adjust_rela = s390_adjust_rela,
+  .prelink_rel = s390_prelink_rel,
+  .prelink_rela = s390_prelink_rela,
+  .prelink_conflict_rel = s390_prelink_conflict_rel,
+  .prelink_conflict_rela = s390_prelink_conflict_rela,
+  .apply_conflict_rela = s390_apply_conflict_rela,
+  .apply_rel = s390_apply_rel,
+  .apply_rela = s390_apply_rela,
+  .rel_to_rela = s390_rel_to_rela,
+  .need_rel_to_rela = s390_need_rel_to_rela,
+  .reloc_size = s390_reloc_size,
+  .reloc_class = s390_reloc_class,
+  .max_reloc_size = 4,
+  .arch_prelink = s390_arch_prelink,
+  .arch_undo_prelink = s390_arch_undo_prelink,
+  .undo_prelink_rela = s390_undo_prelink_rela,
+  /* Although TASK_UNMAPPED_BASE is 0x40000000, we leave some
+     area so that mmap of /etc/ld.so.cache and ld.so's malloc
+     does not take some library's VA slot.
+     Also, if this guard area isn't too small, typically
+     even dlopened libraries will get the slots they desire.  */
+  .mmap_base = 0x41000000,
+  .mmap_end =  0x50000000,
+  .max_page_size = 0x1000,
+  .page_size = 0x1000
+};
diff --git a/src/arch-s390x.c b/src/arch-s390x.c
new file mode 100644 (file)
index 0000000..a0321ef
--- /dev/null
@@ -0,0 +1,637 @@
+/* Copyright (C) 2001, 2002, 2003, 2004, 2009 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <locale.h>
+#include <error.h>
+#include <argp.h>
+#include <stdlib.h>
+
+#include "prelink.h"
+
+static int
+s390x_adjust_dyn (DSO *dso, int n, GElf_Dyn *dyn, GElf_Addr start,
+                 GElf_Addr adjust)
+{
+  if (dyn->d_tag == DT_PLTGOT)
+    {
+      int sec = addr_to_sec (dso, dyn->d_un.d_ptr);
+      Elf64_Addr data;
+
+      if (sec == -1)
+       return 0;
+
+      data = read_ube64 (dso, dyn->d_un.d_ptr);
+      /* If .got.plt[0] points to _DYNAMIC, it needs to be adjusted.  */
+      if (data == dso->shdr[n].sh_addr && data >= start)
+       write_be64 (dso, dyn->d_un.d_ptr, data + adjust);
+
+      data = read_ube64 (dso, dyn->d_un.d_ptr + 8);
+      /* If .got.plt[1] points to .plt + 0x2e, it needs to be adjusted.  */
+      if (data && data >= start)
+       {
+         int i;
+
+         for (i = 1; i < dso->ehdr.e_shnum; i++)
+           if (data == dso->shdr[i].sh_addr + 0x2e
+               && dso->shdr[i].sh_type == SHT_PROGBITS
+               && strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                       dso->shdr[i].sh_name), ".plt") == 0)
+             {
+               write_be64 (dso, dyn->d_un.d_ptr + 8, data + adjust);
+               break;
+             }
+       }
+    }
+  return 0;
+}
+
+static int
+s390x_adjust_rel (DSO *dso, GElf_Rel *rel, GElf_Addr start,
+                 GElf_Addr adjust)
+{
+  error (0, 0, "%s: S390 doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+s390x_adjust_rela (DSO *dso, GElf_Rela *rela, GElf_Addr start,
+                  GElf_Addr adjust)
+{
+  Elf64_Addr addr;
+
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_390_RELATIVE:
+      if (rela->r_addend >= start)
+       {
+         addr = read_ube64 (dso, rela->r_offset);
+         if (addr == rela->r_addend)
+           write_be64 (dso, rela->r_offset, addr + adjust);
+         rela->r_addend += adjust;
+       }
+      break;
+    case R_390_JMP_SLOT:
+      addr = read_ube64 (dso, rela->r_offset);
+      if (addr >= start)
+       write_be64 (dso, rela->r_offset, addr + adjust);
+      break;
+    }
+  return 0;
+}
+
+static int
+s390x_prelink_rel (struct prelink_info *info, GElf_Rel *rel, GElf_Addr reladdr)
+{
+  error (0, 0, "%s: S390 doesn't support REL relocs", info->dso->filename);
+  return 1;
+}
+
+static int
+s390x_prelink_rela (struct prelink_info *info, GElf_Rela *rela,
+                   GElf_Addr relaaddr)
+{
+  DSO *dso = info->dso;
+  GElf_Addr value;
+
+  if (GELF_R_TYPE (rela->r_info) == R_390_NONE)
+    return 0;
+  else if (GELF_R_TYPE (rela->r_info) == R_390_RELATIVE)
+    {
+      write_be64 (dso, rela->r_offset, rela->r_addend);
+      return 0;
+    }
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  value += rela->r_addend;
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_390_GLOB_DAT:
+    case R_390_JMP_SLOT:
+    case R_390_64:
+      write_be64 (dso, rela->r_offset, value);
+      break;
+    case R_390_PC64:
+      write_be64 (dso, rela->r_offset, value - rela->r_offset);
+      break;
+    case R_390_32:
+      write_be32 (dso, rela->r_offset, value);
+      break;
+    case R_390_PC32:
+      write_be32 (dso, rela->r_offset, value - rela->r_offset);
+      break;
+    case R_390_PC32DBL:
+    case R_390_PLT32DBL:
+      write_be32 (dso, rela->r_offset,
+                 ((Elf32_Sword) (value - rela->r_offset)) >> 1);
+      break;
+    case R_390_16:
+      write_be16 (dso, rela->r_offset, value);
+      break;
+    case R_390_PC16:
+      write_be16 (dso, rela->r_offset, value - rela->r_offset);
+      break;
+    case R_390_PC16DBL:
+    case R_390_PLT16DBL:
+      write_be16 (dso, rela->r_offset,
+                 ((int16_t) (value - rela->r_offset)) >> 1);
+      break;
+    case R_390_8:
+      write_8 (dso, rela->r_offset, value);
+      break;
+    case R_390_TLS_DTPOFF:
+      write_be64 (dso, rela->r_offset, value);
+      break;
+    /* DTPMOD and TPOFF is impossible to predict in shared libraries
+       unless prelink sets the rules.  */
+    case R_390_TLS_DTPMOD:
+      if (dso->ehdr.e_type == ET_EXEC)
+       {
+         error (0, 0, "%s: R_390_TLS_DTPMOD reloc in executable?",
+                dso->filename);
+         return 1;
+       }
+      break;
+    case R_390_TLS_TPOFF:
+      if (dso->ehdr.e_type == ET_EXEC && info->resolvetls)
+       write_be64 (dso, rela->r_offset, value - info->resolvetls->offset);
+      break;
+    case R_390_COPY:
+      if (dso->ehdr.e_type == ET_EXEC)
+       /* COPY relocs are handled specially in generic code.  */
+       return 0;
+      error (0, 0, "%s: R_390_COPY reloc in shared library?", dso->filename);
+      return 1;
+    default:
+      error (0, 0, "%s: Unknown S390 relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+s390x_apply_conflict_rela (struct prelink_info *info, GElf_Rela *rela,
+                          char *buf, GElf_Addr dest_addr)
+{
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_390_64:
+      buf_write_be64 (buf, rela->r_addend);
+      break;
+    case R_390_32:
+      buf_write_be32 (buf, rela->r_addend);
+      break;
+    case R_390_16:
+      buf_write_be16 (buf, rela->r_addend);
+      break;
+    case R_390_8:
+      buf_write_8 (buf, rela->r_addend);
+      break;
+    default:
+      abort ();
+    }
+  return 0;
+}
+
+static int
+s390x_apply_rel (struct prelink_info *info, GElf_Rel *rel, char *buf)
+{
+  error (0, 0, "%s: S390 doesn't support REL relocs", info->dso->filename);
+  return 1;
+}
+
+static int
+s390x_apply_rela (struct prelink_info *info, GElf_Rela *rela, char *buf)
+{
+  GElf_Addr value;
+
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  value += rela->r_addend;
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_390_NONE:
+      break;
+    case R_390_GLOB_DAT:
+    case R_390_JMP_SLOT:
+    case R_390_64:
+      buf_write_be64 (buf, value);
+      break;
+    case R_390_PC64:
+      buf_write_be64 (buf, value - rela->r_offset);
+      break;
+    case R_390_32:
+      buf_write_be32 (buf, value);
+      break;
+    case R_390_PC32:
+      buf_write_be32 (buf, value - rela->r_offset);
+      break;
+    case R_390_PC32DBL:
+    case R_390_PLT32DBL:
+      buf_write_be32 (buf, ((Elf32_Sword) (value - rela->r_offset)) >> 1);
+      break;
+    case R_390_16:
+      buf_write_be16 (buf, value);
+      break;
+    case R_390_PC16:
+      buf_write_be16 (buf, value - rela->r_offset);
+      break;
+    case R_390_PC16DBL:
+    case R_390_PLT16DBL:
+      buf_write_be16 (buf, ((int16_t) (value - rela->r_offset)) >> 1);
+      break;
+    case R_390_8:
+      buf_write_8 (buf, value);
+      break;
+    case R_390_COPY:
+      abort ();
+    case R_390_RELATIVE:
+      error (0, 0, "%s: R_390_RELATIVE in ET_EXEC object?", info->dso->filename);
+      return 1;
+    default:
+      return 1;
+    }
+  return 0;
+}
+
+static int
+s390x_prelink_conflict_rel (DSO *dso, struct prelink_info *info, GElf_Rel *rel,
+                           GElf_Addr reladdr)
+{
+  error (0, 0, "%s: S390 doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+s390x_prelink_conflict_rela (DSO *dso, struct prelink_info *info,
+                            GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  GElf_Addr value;
+  struct prelink_conflict *conflict;
+  struct prelink_tls *tls;
+  GElf_Rela *ret;
+  int r_type;
+
+  if (GELF_R_TYPE (rela->r_info) == R_390_RELATIVE
+      || GELF_R_TYPE (rela->r_info) == R_390_NONE
+      || info->dso == dso)
+    /* Fast path: nothing to do.  */
+    return 0;
+  conflict = prelink_conflict (info, GELF_R_SYM (rela->r_info),
+                              GELF_R_TYPE (rela->r_info));
+  if (conflict == NULL)
+    {
+      if (info->curtls == NULL)
+       return 0;
+      switch (GELF_R_TYPE (rela->r_info))
+       {
+       /* Even local DTPMOD and TPOFF relocs need conflicts.  */
+       case R_390_TLS_DTPMOD:
+       case R_390_TLS_TPOFF:
+         break;
+       default:
+         return 0;
+       }
+      value = 0;
+    }
+  else if (conflict->ifunc)
+    {
+      error (0, 0, "%s: STT_GNU_IFUNC not handled on S390x yet",
+            dso->filename);
+      return 1;
+    }
+  else
+    {
+      /* DTPOFF wants to see only real conflicts, not lookups
+        with reloc_class RTYPE_CLASS_TLS.  */
+      if (GELF_R_TYPE (rela->r_info) == R_390_TLS_DTPOFF
+         && conflict->lookup.tls == conflict->conflict.tls
+         && conflict->lookupval == conflict->conflictval)
+       return 0;
+
+      value = conflict_lookup_value (conflict);
+    }
+  ret = prelink_conflict_add_rela (info);
+  if (ret == NULL)
+    return 1;
+  ret->r_offset = rela->r_offset;
+  r_type = GELF_R_TYPE (rela->r_info);
+  value += rela->r_addend;
+  switch (r_type)
+    {
+    case R_390_PC64:
+      value -= rela->r_offset;
+    case R_390_GLOB_DAT:
+    case R_390_JMP_SLOT:
+    case R_390_64:
+      ret->r_addend = value;
+      r_type = R_390_64;
+      break;
+    case R_390_PC32:
+      value -= rela->r_offset;
+    case R_390_32:
+      ret->r_addend = (Elf32_Addr) value;
+      r_type = R_390_32;
+      break;
+    case R_390_PC32DBL:
+    case R_390_PLT32DBL:
+      ret->r_addend
+       = (Elf32_Addr) (((Elf32_Sword) (value - rela->r_offset)) >> 1);
+      r_type = R_390_32;
+      break;
+    case R_390_PC16:
+      value -= rela->r_offset;
+    case R_390_16:
+      ret->r_addend = (Elf32_Half) value;
+      r_type = R_390_16;
+      break;
+    case R_390_PC16DBL:
+    case R_390_PLT16DBL:
+      ret->r_addend = (Elf32_Half) (((int16_t) (value - rela->r_offset)) >> 1);
+      r_type = R_390_16;
+      break;
+    case R_390_8:
+      ret->r_addend = value & 0xff;
+      break;
+    case R_390_COPY:
+      error (0, 0, "R_390_COPY should not be present in shared libraries");
+      return 1;
+    case R_390_TLS_DTPMOD:
+    case R_390_TLS_DTPOFF:
+    case R_390_TLS_TPOFF:
+      if (conflict != NULL
+         && (conflict->reloc_class != RTYPE_CLASS_TLS
+             || conflict->lookup.tls == NULL))
+       {
+         error (0, 0, "%s: TLS reloc not resolving to STT_TLS symbol",
+                dso->filename);
+         return 1;
+       }
+      tls = conflict ? conflict->lookup.tls : info->curtls;
+      switch (r_type)
+       {
+       case R_390_TLS_DTPMOD:
+         ret->r_addend = tls->modid;
+         break;
+       case R_390_TLS_DTPOFF:
+         ret->r_addend = value;
+         break;
+       case R_390_TLS_TPOFF:
+         ret->r_addend = value - tls->offset;
+         break;
+       }
+      r_type = R_390_64;
+      break;
+    default:
+      error (0, 0, "%s: Unknown S390 relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  ret->r_info = GELF_R_INFO (0, r_type);
+  return 0;
+}
+
+static int
+s390x_rel_to_rela (DSO *dso, GElf_Rel *rel, GElf_Rela *rela)
+{
+  error (0, 0, "%s: S390 doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+s390x_need_rel_to_rela (DSO *dso, int first, int last)
+{
+  return 0;
+}
+
+static int
+s390x_arch_prelink (struct prelink_info *info)
+{
+  DSO *dso;
+  int i;
+
+  dso = info->dso;
+  if (dso->info[DT_PLTGOT])
+    {
+      /* Write address of .plt + 0x2e into got[1].
+        .plt + 0x2e is what got[3] contains unless prelinking.  */
+      int sec = addr_to_sec (dso, dso->info[DT_PLTGOT]);
+      Elf64_Addr data;
+
+      if (sec == -1)
+       return 1;
+
+      for (i = 1; i < dso->ehdr.e_shnum; i++)
+       if (dso->shdr[i].sh_type == SHT_PROGBITS
+           && ! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                dso->shdr[i].sh_name),
+                        ".plt"))
+       break;
+
+      if (i == dso->ehdr.e_shnum)
+       return 0;
+      data = dso->shdr[i].sh_addr + 0x2e;
+      write_be64 (dso, dso->info[DT_PLTGOT] + 8, data);
+    }
+
+  return 0;
+}
+
+static int
+s390x_arch_undo_prelink (DSO *dso)
+{
+  int i;
+
+  if (dso->info[DT_PLTGOT])
+    {
+      /* Clear got[1] if it contains address of .plt + 0x2e.  */
+      int sec = addr_to_sec (dso, dso->info[DT_PLTGOT]);
+      Elf64_Addr data;
+
+      if (sec == -1)
+       return 1;
+
+      for (i = 1; i < dso->ehdr.e_shnum; i++)
+       if (dso->shdr[i].sh_type == SHT_PROGBITS
+           && ! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                dso->shdr[i].sh_name),
+                        ".plt"))
+       break;
+
+      if (i == dso->ehdr.e_shnum)
+       return 0;
+      data = read_ube64 (dso, dso->info[DT_PLTGOT] + 8);
+      if (data == dso->shdr[i].sh_addr + 0x2e)
+       write_be64 (dso, dso->info[DT_PLTGOT] + 8, 0);
+    }
+
+  return 0;
+}
+
+static int
+s390x_undo_prelink_rela (DSO *dso, GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  int sec;
+  const char *name;
+
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_390_NONE:
+    case R_390_RELATIVE:
+      break;
+    case R_390_JMP_SLOT:
+      sec = addr_to_sec (dso, rela->r_offset);
+      name = strptr (dso, dso->ehdr.e_shstrndx, dso->shdr[sec].sh_name);
+      if (sec == -1 || (strcmp (name, ".got") && strcmp (name, ".got.plt")))
+       {
+         error (0, 0, "%s: R_390_JMP_SLOT not pointing into .got section",
+                dso->filename);
+         return 1;
+       }
+      else
+       {
+         Elf64_Addr data = read_ube64 (dso, dso->shdr[sec].sh_addr + 8);
+
+         assert (rela->r_offset >= dso->shdr[sec].sh_addr + 24);
+         assert (((rela->r_offset - dso->shdr[sec].sh_addr) & 7) == 0);
+         write_be64 (dso, rela->r_offset,
+                     4 * (rela->r_offset - dso->shdr[sec].sh_addr - 24)
+                     + data);
+       }
+      break;
+    case R_390_GLOB_DAT:
+    case R_390_64:
+    case R_390_PC64:
+    case R_390_TLS_DTPMOD:
+    case R_390_TLS_DTPOFF:
+    case R_390_TLS_TPOFF:
+      write_be64 (dso, rela->r_offset, 0);
+      break;
+    case R_390_32:
+    case R_390_PC32:
+    case R_390_PC32DBL:
+    case R_390_PLT32DBL:
+      write_be32 (dso, rela->r_offset, 0);
+      break;
+    case R_390_16:
+    case R_390_PC16:
+    case R_390_PC16DBL:
+    case R_390_PLT16DBL:
+      write_be16 (dso, rela->r_offset, 0);
+      break;
+    case R_390_8:
+      write_8 (dso, rela->r_offset, 0);
+      break;
+    case R_390_COPY:
+      if (dso->ehdr.e_type == ET_EXEC)
+       /* COPY relocs are handled specially in generic code.  */
+       return 0;
+      error (0, 0, "%s: R_390_COPY reloc in shared library?", dso->filename);
+      return 1;
+    default:
+      error (0, 0, "%s: Unknown s390x relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+s390x_reloc_size (int reloc_type)
+{
+  switch (reloc_type)
+    {
+    case R_390_GLOB_DAT:
+    case R_390_JMP_SLOT:
+    case R_390_64:
+    case R_390_PC64:
+      return 8;
+    case R_390_32:
+    case R_390_PC32:
+    case R_390_PC32DBL:
+    case R_390_PLT32DBL:
+    default:
+      return 4;
+    case R_390_16:
+    case R_390_PC16:
+    case R_390_PC16DBL:
+    case R_390_PLT16DBL:
+      return 2;
+    case R_390_8:
+      return 1;
+    }
+}
+
+static int
+s390x_reloc_class (int reloc_type)
+{
+  switch (reloc_type)
+    {
+    case R_390_COPY: return RTYPE_CLASS_COPY;
+    case R_390_JMP_SLOT: return RTYPE_CLASS_PLT;
+    case R_390_TLS_DTPMOD:
+    case R_390_TLS_DTPOFF:
+    case R_390_TLS_TPOFF:
+      return RTYPE_CLASS_TLS;
+    default: return RTYPE_CLASS_VALID;
+    }
+}
+
+PL_ARCH = {
+  .name = "S390",
+  .class = ELFCLASS64,
+  .machine = EM_S390,
+  .alternate_machine = { 0xA390 },
+  .R_JMP_SLOT = R_390_JMP_SLOT,
+  .R_COPY = R_390_COPY,
+  .R_RELATIVE = R_390_RELATIVE,
+  .rtype_class_valid = RTYPE_CLASS_VALID,
+  .dynamic_linker = "/lib/ld64.so.1",
+  .adjust_dyn = s390x_adjust_dyn,
+  .adjust_rel = s390x_adjust_rel,
+  .adjust_rela = s390x_adjust_rela,
+  .prelink_rel = s390x_prelink_rel,
+  .prelink_rela = s390x_prelink_rela,
+  .prelink_conflict_rel = s390x_prelink_conflict_rel,
+  .prelink_conflict_rela = s390x_prelink_conflict_rela,
+  .apply_conflict_rela = s390x_apply_conflict_rela,
+  .apply_rel = s390x_apply_rel,
+  .apply_rela = s390x_apply_rela,
+  .rel_to_rela = s390x_rel_to_rela,
+  .need_rel_to_rela = s390x_need_rel_to_rela,
+  .reloc_size = s390x_reloc_size,
+  .reloc_class = s390x_reloc_class,
+  .max_reloc_size = 8,
+  .arch_prelink = s390x_arch_prelink,
+  .arch_undo_prelink = s390x_arch_undo_prelink,
+  .undo_prelink_rela = s390x_undo_prelink_rela,
+  /* Although TASK_UNMAPPED_BASE is 0x4000000000, we leave some
+     area so that mmap of /etc/ld.so.cache and ld.so's malloc
+     does not take some library's VA slot.
+     Also, if this guard area isn't too small, typically
+     even dlopened libraries will get the slots they desire.  */
+  .mmap_base = 0x4010000000LL,
+  .mmap_end =  0x5000000000LL,
+  .max_page_size = 0x1000,
+  .page_size = 0x1000
+};
diff --git a/src/arch-sh.c b/src/arch-sh.c
new file mode 100644 (file)
index 0000000..095ed58
--- /dev/null
@@ -0,0 +1,453 @@
+/* Copyright (C) 2001, 2002, 2003, 2004, 2009 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <locale.h>
+#include <error.h>
+#include <argp.h>
+#include <stdlib.h>
+
+#include "prelink.h"
+
+static int
+sh_adjust_dyn (DSO *dso, int n, GElf_Dyn *dyn, GElf_Addr start,
+              GElf_Addr adjust)
+{
+  if (dyn->d_tag == DT_PLTGOT)
+    {
+      int sec = addr_to_sec (dso, dyn->d_un.d_ptr);
+      Elf32_Addr data;
+
+      if (sec == -1)
+       return 0;
+
+      data = read_une32 (dso, dyn->d_un.d_ptr);
+      /* If .got.plt[0] points to _DYNAMIC, it needs to be adjusted.  */
+      if (data == dso->shdr[n].sh_addr && data >= start)
+       write_ne32 (dso, dyn->d_un.d_ptr, data + adjust);
+
+      data = read_une32 (dso, dyn->d_un.d_ptr + 4);
+      /* If .got.plt[1] points to .plt + 36, it needs to be adjusted.  */
+      if (data && data >= start)
+       {
+         int i;
+
+         for (i = 1; i < dso->ehdr.e_shnum; i++)
+           if (data == dso->shdr[i].sh_addr + 36
+               && dso->shdr[i].sh_type == SHT_PROGBITS
+               && strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                       dso->shdr[i].sh_name), ".plt") == 0)
+             {
+               write_ne32 (dso, dyn->d_un.d_ptr + 4, data + adjust);
+               break;
+             }
+       }
+    }
+  return 0;
+}
+
+static int
+sh_adjust_rel (DSO *dso, GElf_Rel *rel, GElf_Addr start,
+              GElf_Addr adjust)
+{
+  error (0, 0, "%s: SH doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+sh_adjust_rela (DSO *dso, GElf_Rela *rela, GElf_Addr start,
+               GElf_Addr adjust)
+{
+  Elf32_Addr data;
+
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_SH_RELATIVE:
+      if (rela->r_addend && (Elf32_Addr) rela->r_addend >= start)
+       {
+         rela->r_addend += (Elf32_Sword) adjust;
+         break;
+       }
+      /* FALLTHROUGH */
+    case R_SH_JMP_SLOT:
+      data = read_une32 (dso, rela->r_offset);
+      if (data >= start)
+       write_ne32 (dso, rela->r_offset, data + adjust);
+      break;
+      break;
+    }
+  return 0;
+}
+
+static int
+sh_prelink_rel (struct prelink_info *info, GElf_Rel *rel, GElf_Addr reladdr)
+{
+  error (0, 0, "%s: SH doesn't support REL relocs", info->dso->filename);
+  return 1;
+}
+
+static int
+sh_prelink_rela (struct prelink_info *info, GElf_Rela *rela,
+                GElf_Addr relaaddr)
+{
+  DSO *dso;
+  GElf_Addr value;
+
+  dso = info->dso;
+  if (GELF_R_TYPE (rela->r_info) == R_SH_NONE)
+    /* Fast path: nothing to do.  */
+    return 0;
+  else if (GELF_R_TYPE (rela->r_info) == R_SH_RELATIVE)
+    {
+      if (rela->r_addend)
+       write_ne32 (dso, rela->r_offset, rela->r_addend);
+      return 0;
+    }
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  value += rela->r_addend;
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_SH_GLOB_DAT:
+    case R_SH_JMP_SLOT:
+    case R_SH_DIR32:
+      write_ne32 (dso, rela->r_offset, value);
+      break;
+    case R_SH_REL32:
+      write_ne32 (dso, rela->r_offset, value - rela->r_addend);
+      break;
+    case R_SH_COPY:
+      if (dso->ehdr.e_type == ET_EXEC)
+       /* COPY relocs are handled specially in generic code.  */
+       return 0;
+      error (0, 0, "%s: R_SH_COPY reloc in shared library?", dso->filename);
+      return 1;
+    default:
+      error (0, 0, "%s: Unknown sh relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+sh_apply_conflict_rela (struct prelink_info *info, GElf_Rela *rela,
+                       char *buf, GElf_Addr dest_addr)
+{
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_SH_GLOB_DAT:
+    case R_SH_JMP_SLOT:
+    case R_SH_DIR32:
+      buf_write_ne32 (info->dso, buf, rela->r_addend);
+      break;
+    default:
+      abort ();
+    }
+  return 0;
+}
+
+static int
+sh_apply_rel (struct prelink_info *info, GElf_Rel *rel, char *buf)
+{
+  error (0, 0, "%s: SH doesn't support REL relocs", info->dso->filename);
+  return 1;
+}
+
+static int
+sh_apply_rela (struct prelink_info *info, GElf_Rela *rela, char *buf)
+{
+  GElf_Addr value;
+
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  value += rela->r_addend;
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_SH_NONE:
+      break;
+    case R_SH_GLOB_DAT:
+    case R_SH_JMP_SLOT:
+    case R_SH_DIR32:
+      buf_write_ne32 (info->dso, buf, value);
+      break;
+    case R_SH_REL32:
+      buf_write_ne32 (info->dso, buf, value - rela->r_offset);
+      break;
+    case R_SH_COPY:
+      abort ();
+    case R_SH_RELATIVE:
+      error (0, 0, "%s: R_SH_RELATIVE in ET_EXEC object?", info->dso->filename);
+      return 1;
+    default:
+      return 1;
+    }
+  return 0;
+}
+
+static int
+sh_prelink_conflict_rel (DSO *dso, struct prelink_info *info, GElf_Rel *rel,
+                        GElf_Addr reladdr)
+{
+  error (0, 0, "%s: SH doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+sh_prelink_conflict_rela (DSO *dso, struct prelink_info *info,
+                         GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  GElf_Addr value;
+  struct prelink_conflict *conflict;
+  GElf_Rela *ret;
+
+  if (GELF_R_TYPE (rela->r_info) == R_SH_RELATIVE
+      || GELF_R_TYPE (rela->r_info) == R_SH_NONE
+      || info->dso == dso)
+    /* Fast path: nothing to do.  */
+    return 0;
+  conflict = prelink_conflict (info, GELF_R_SYM (rela->r_info),
+                              GELF_R_TYPE (rela->r_info));
+  if (conflict == NULL)
+    return 0;
+  else if (conflict->ifunc)
+    {
+      error (0, 0, "%s: STT_GNU_IFUNC not handled on SuperH yet",
+            dso->filename);
+      return 1;
+    }
+  value = conflict_lookup_value (conflict);
+  ret = prelink_conflict_add_rela (info);
+  if (ret == NULL)
+    return 1;
+  ret->r_offset = rela->r_offset;
+  ret->r_info = GELF_R_INFO (0, GELF_R_TYPE (rela->r_info));
+  value += rela->r_addend;
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_SH_REL32:
+      value -= rela->r_offset;
+      ret->r_info = GELF_R_INFO (0, R_SH_DIR32);
+      /* FALLTHROUGH */
+    case R_SH_DIR32:
+      if ((rela->r_offset & 3) == 0)
+       ret->r_info = GELF_R_INFO (0, R_SH_GLOB_DAT);
+      /* FALLTHROUGH */
+    case R_SH_GLOB_DAT:
+    case R_SH_JMP_SLOT:
+      ret->r_addend = (Elf32_Sword) (value + rela->r_addend);
+      break;
+    case R_SH_COPY:
+      error (0, 0, "R_SH_COPY should not be present in shared libraries");
+      return 1;
+    default:
+      error (0, 0, "%s: Unknown sh relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+sh_rel_to_rela (DSO *dso, GElf_Rel *rel, GElf_Rela *rela)
+{
+  return 0;
+}
+
+static int
+sh_need_rel_to_rela (DSO *dso, int first, int last)
+{
+  return 0;
+}
+
+static int
+sh_arch_prelink (struct prelink_info *info)
+{
+  DSO *dso;
+  int i;
+
+  dso = info->dso;
+  if (dso->info[DT_PLTGOT])
+    {
+      /* Write address of .plt + 36 into got[1].
+        .plt + 36 is what got[3] contains unless prelinking.  */
+      int sec = addr_to_sec (dso, dso->info[DT_PLTGOT]);
+      Elf32_Addr data;
+
+      if (sec == -1)
+       return 1;
+
+      for (i = 1; i < dso->ehdr.e_shnum; i++)
+       if (dso->shdr[i].sh_type == SHT_PROGBITS
+           && ! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                dso->shdr[i].sh_name),
+                        ".plt"))
+       break;
+
+      if (i == dso->ehdr.e_shnum)
+       return 0;
+      data = dso->shdr[i].sh_addr + 36;
+      write_ne32 (dso, dso->info[DT_PLTGOT] + 4, data);
+    }
+
+  return 0;
+}
+
+static int
+sh_arch_undo_prelink (DSO *dso)
+{
+  int i;
+
+  if (dso->info[DT_PLTGOT])
+    {
+      /* Clear got[1] if it contains address of .plt + 36.  */
+      int sec = addr_to_sec (dso, dso->info[DT_PLTGOT]);
+      Elf32_Addr data;
+
+      if (sec == -1)
+       return 1;
+
+      for (i = 1; i < dso->ehdr.e_shnum; i++)
+       if (dso->shdr[i].sh_type == SHT_PROGBITS
+           && ! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                dso->shdr[i].sh_name),
+                        ".plt"))
+       break;
+
+      if (i == dso->ehdr.e_shnum)
+       return 0;
+      data = read_une32 (dso, dso->info[DT_PLTGOT] + 4);
+      if (data == dso->shdr[i].sh_addr + 36)
+       write_ne32 (dso, dso->info[DT_PLTGOT] + 4, 0);
+    }
+
+  return 0;
+}
+
+static int
+sh_undo_prelink_rela (DSO *dso, GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  int sec;
+  const char *name;
+
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_SH_NONE:
+      break;
+    case R_SH_RELATIVE:
+      if (rela->r_addend)
+       write_le32 (dso, rela->r_offset, 0);
+      break;
+    case R_SH_JMP_SLOT:
+      sec = addr_to_sec (dso, rela->r_offset);
+      name = strptr (dso, dso->ehdr.e_shstrndx, dso->shdr[sec].sh_name);
+      if (sec == -1 || (strcmp (name, ".got") && strcmp (name, ".got.plt")))
+       {
+         error (0, 0, "%s: R_SH_JMP_SLOT not pointing into .got section",
+                dso->filename);
+         return 1;
+       }
+      else
+       {
+         Elf32_Addr data = read_une32 (dso, dso->shdr[sec].sh_addr + 4);
+
+         assert (rela->r_offset >= dso->shdr[sec].sh_addr + 12);
+         assert (((rela->r_offset - dso->shdr[sec].sh_addr) & 3) == 0);
+         write_ne32 (dso, rela->r_offset,
+                     7 * (rela->r_offset - dso->shdr[sec].sh_addr - 12)
+                     + data);
+       }
+      break;
+    case R_SH_GLOB_DAT:
+    case R_SH_DIR32:
+    case R_SH_REL32:
+      write_ne32 (dso, rela->r_offset, 0);
+      break;
+    case R_SH_COPY:
+      if (dso->ehdr.e_type == ET_EXEC)
+       /* COPY relocs are handled specially in generic code.  */
+       return 0;
+      error (0, 0, "%s: R_SH_COPY reloc in shared library?", dso->filename);
+      return 1;
+    default:
+      error (0, 0, "%s: Unknown sh relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+sh_reloc_size (int reloc_type)
+{
+  return 4;
+}
+
+static int
+sh_reloc_class (int reloc_type)
+{
+  switch (reloc_type)
+    {
+    case R_SH_COPY: return RTYPE_CLASS_COPY;
+    case R_SH_JMP_SLOT: return RTYPE_CLASS_PLT;
+    default: return RTYPE_CLASS_VALID;
+    }
+}
+
+PL_ARCH = {
+  .name = "SuperH",
+  .class = ELFCLASS32,
+  .machine = EM_SH,
+  .alternate_machine = { EM_NONE },
+  .R_JMP_SLOT = R_SH_JMP_SLOT,
+  .R_COPY = R_SH_COPY,
+  .R_RELATIVE = R_SH_RELATIVE,
+  .rtype_class_valid = RTYPE_CLASS_VALID,
+  .dynamic_linker = "/lib/ld-linux.so.2",
+  .adjust_dyn = sh_adjust_dyn,
+  .adjust_rel = sh_adjust_rel,
+  .adjust_rela = sh_adjust_rela,
+  .prelink_rel = sh_prelink_rel,
+  .prelink_rela = sh_prelink_rela,
+  .prelink_conflict_rel = sh_prelink_conflict_rel,
+  .prelink_conflict_rela = sh_prelink_conflict_rela,
+  .apply_conflict_rela = sh_apply_conflict_rela,
+  .apply_rel = sh_apply_rel,
+  .apply_rela = sh_apply_rela,
+  .rel_to_rela = sh_rel_to_rela,
+  .need_rel_to_rela = sh_need_rel_to_rela,
+  .reloc_size = sh_reloc_size,
+  .reloc_class = sh_reloc_class,
+  .max_reloc_size = 4,
+  .arch_prelink = sh_arch_prelink,
+  .arch_undo_prelink = sh_arch_undo_prelink,
+  .undo_prelink_rela = sh_undo_prelink_rela,
+  /* Although TASK_UNMAPPED_BASE is 0x29555000, we leave some
+     area so that mmap of /etc/ld.so.cache and ld.so's malloc
+     does not take some library's VA slot.
+     Also, if this guard area isn't too small, typically
+     even dlopened libraries will get the slots they desire.  */
+  .mmap_base = 0x30000000,
+  .mmap_end =  0x40000000,
+  .max_page_size = 0x2000,
+  .page_size = 0x1000
+};
diff --git a/src/arch-sparc.c b/src/arch-sparc.c
new file mode 100644 (file)
index 0000000..7a3c8db
--- /dev/null
@@ -0,0 +1,645 @@
+/* Copyright (C) 2001, 2002, 2004, 2009 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <locale.h>
+#include <error.h>
+#include <argp.h>
+#include <stdlib.h>
+
+#include "prelink.h"
+
+static int
+sparc_adjust_dyn (DSO *dso, int n, GElf_Dyn *dyn, GElf_Addr start,
+                 GElf_Addr adjust)
+{
+  if (dyn->d_tag == DT_PLTGOT)
+    {
+      int i;
+
+      for (i = 1; i < dso->ehdr.e_shnum; ++i)
+       if (! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                             dso->shdr[i].sh_name), ".got"))
+         {
+           Elf32_Addr data;
+
+           data = read_ube32 (dso, dso->shdr[i].sh_addr);
+           /* .got[0] points to _DYNAMIC, it needs to be adjusted.  */
+           if (data == dso->shdr[n].sh_addr && data >= start)
+             write_be32 (dso, dso->shdr[i].sh_addr, data + adjust);
+           break;
+         }
+    }
+
+  return 0;
+}
+
+static int
+sparc_adjust_rel (DSO *dso, GElf_Rel *rel, GElf_Addr start,
+                 GElf_Addr adjust)
+{
+  error (0, 0, "%s: Sparc doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+sparc_adjust_rela (DSO *dso, GElf_Rela *rela, GElf_Addr start,
+                  GElf_Addr adjust)
+{
+  if (GELF_R_TYPE (rela->r_info) == R_SPARC_RELATIVE)
+    {
+      if (rela->r_addend)
+       {
+         if ((Elf32_Addr) rela->r_addend >= start)
+           rela->r_addend += (Elf32_Sword) adjust;
+       }
+      else
+       {
+         GElf_Addr val = read_ube32 (dso, rela->r_offset);
+
+         if (val >= start)
+           write_be32 (dso, rela->r_offset, val + adjust);
+       }
+    }
+  return 0;
+}
+
+static int
+sparc_prelink_rel (struct prelink_info *info, GElf_Rel *rel,
+                  GElf_Addr reladdr)
+{
+  error (0, 0, "%s: Sparc doesn't support REL relocs", info->dso->filename);
+  return 1;
+}
+
+static void
+sparc_fixup_plt (DSO *dso, GElf_Rela *rela, GElf_Addr value)
+{
+  Elf32_Sword disp = value - rela->r_offset;
+
+  if (disp >= -0x800000 && disp < 0x800000)
+    {
+      /* b,a value
+         nop
+        nop  */
+      write_be32 (dso, rela->r_offset, 0x30800000 | ((disp >> 2) & 0x3fffff));
+      write_be32 (dso, rela->r_offset + 4, 0x01000000);
+      write_be32 (dso, rela->r_offset + 8, 0x01000000);
+    }
+  else
+    {
+      /* sethi %hi(value), %g1
+        jmpl %g1 + %lo(value), %g0
+         nop  */
+      write_be32 (dso, rela->r_offset, 0x03000000 | ((value >> 10) & 0x3fffff));
+      write_be32 (dso, rela->r_offset + 4, 0x81c06000 | (value & 0x3ff));
+      write_be32 (dso, rela->r_offset + 8, 0x01000000);
+    }
+}
+
+static int
+sparc_prelink_rela (struct prelink_info *info, GElf_Rela *rela,
+                   GElf_Addr relaaddr)
+{
+  DSO *dso = info->dso;
+  GElf_Addr value;
+
+  if (GELF_R_TYPE (rela->r_info) == R_SPARC_NONE)
+    return 0;
+  else if (GELF_R_TYPE (rela->r_info) == R_SPARC_RELATIVE)
+    {
+      /* 32-bit SPARC handles RELATIVE relocs as
+        *(int *)rela->r_offset += l_addr + rela->r_addend.
+        RELATIVE relocs against .got traditionally used to have the
+        addend in memory pointed by r_offset and 0 r_addend,
+        other RELATIVE relocs and more recent .got RELATIVE relocs
+        too have 0 in memory and non-zero r_addend.  For prelinking,
+        we need the value in memory to be already relocated for
+        l_addr == 0 case, so we have to make sure r_addend will be 0.  */
+      if (rela->r_addend == 0)
+       return 0;
+      value = read_ube32 (dso, rela->r_offset);
+      value += rela->r_addend;
+      rela->r_addend = 0;
+      write_be32 (dso, rela->r_offset, value);
+      /* Tell prelink_rela routine it should update the relocation.  */
+      return 2;
+    }
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  value += rela->r_addend;
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_SPARC_GLOB_DAT:
+    case R_SPARC_32:
+    case R_SPARC_UA32:
+      write_be32 (dso, rela->r_offset, value);
+      break;
+    case R_SPARC_JMP_SLOT:
+      sparc_fixup_plt (dso, rela, value);
+      break;
+    case R_SPARC_8:
+      write_8 (dso, rela->r_offset, value);
+      break;
+    case R_SPARC_16:
+    case R_SPARC_UA16:
+      write_be16 (dso, rela->r_offset, value);
+      break;
+    case R_SPARC_LO10:
+      write_be32 (dso, rela->r_offset,
+                 (value & 0x3ff) | (read_ube32 (dso, rela->r_offset) & ~0x3ff));
+      break;
+    case R_SPARC_HI22:
+      write_be32 (dso, rela->r_offset,
+                 ((value >> 10) & 0x3fffff)
+                 | (read_ube32 (dso, rela->r_offset) & 0xffc00000));
+      break;
+    case R_SPARC_DISP8:
+      write_8 (dso, rela->r_offset, value - rela->r_offset);
+      break;
+    case R_SPARC_DISP16:
+      write_be16 (dso, rela->r_offset, value - rela->r_offset);
+      break;
+    case R_SPARC_DISP32:
+      write_be32 (dso, rela->r_offset, value - rela->r_offset);
+      break;
+    case R_SPARC_WDISP30:
+      write_be32 (dso, rela->r_offset,
+                 (((value - rela->r_offset) >> 2) & 0x3fffffff)
+                 | (read_ube32 (dso, rela->r_offset) & 0xc0000000));
+      break;
+    case R_SPARC_TLS_DTPOFF32:
+      write_be32 (dso, rela->r_offset, value + rela->r_addend);
+      break;
+    /* DTPMOD32 and TPOFF32 is impossible to predict in shared libraries
+       unless prelink sets the rules.  */
+    case R_SPARC_TLS_DTPMOD32:
+      if (dso->ehdr.e_type == ET_EXEC)
+       {
+         error (0, 0, "%s: R_SPARC_TLS_DTPMOD32 reloc in executable?",
+                dso->filename);
+         return 1;
+       }
+      break;
+    case R_SPARC_TLS_TPOFF32:
+      if (dso->ehdr.e_type == ET_EXEC && info->resolvetls)
+       write_be32 (dso, rela->r_offset,
+                   value + rela->r_addend - info->resolvetls->offset);
+      break;
+    case R_SPARC_TLS_LE_HIX22:
+      if (dso->ehdr.e_type == ET_EXEC && info->resolvetls)
+       write_be32 (dso, rela->r_offset,
+                   (read_ube32 (dso, rela->r_offset) & 0xffc00000)
+                   | (((~(value + rela->r_addend - info->resolvetls->offset))
+                       >> 10) & 0x3fffff));
+      break;
+    case R_SPARC_TLS_LE_LOX10:
+      if (dso->ehdr.e_type == ET_EXEC && info->resolvetls)
+       write_be32 (dso, rela->r_offset,
+                   (read_ube32 (dso, rela->r_offset) & 0xffffe000) | 0x1c00
+                   | ((value + rela->r_addend - info->resolvetls->offset)
+                      & 0x3ff));
+      break;
+    case R_SPARC_COPY:
+      if (dso->ehdr.e_type == ET_EXEC)
+       /* COPY relocs are handled specially in generic code.  */
+       return 0;
+      error (0, 0, "%s: R_SPARC_COPY reloc in shared library?", dso->filename);
+      return 1;
+    default:
+      error (0, 0, "%s: Unknown sparc relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+sparc_apply_conflict_rela (struct prelink_info *info, GElf_Rela *rela,
+                          char *buf, GElf_Addr dest_addr)
+{
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_SPARC_32:
+    case R_SPARC_UA32:
+      buf_write_be32 (buf, rela->r_addend);
+      break;
+    case R_SPARC_16:
+    case R_SPARC_UA16:
+      buf_write_be16 (buf, rela->r_addend);
+      break;
+    case R_SPARC_8:
+      buf_write_8 (buf, rela->r_addend);
+      break;
+    default:
+      abort ();
+    }
+  return 0;
+}
+
+static int
+sparc_apply_rel (struct prelink_info *info, GElf_Rel *rel, char *buf)
+{
+  error (0, 0, "%s: Sparc doesn't support REL relocs", info->dso->filename);
+  return 1;
+}
+
+static int
+sparc_apply_rela (struct prelink_info *info, GElf_Rela *rela, char *buf)
+{
+  GElf_Addr value;
+
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  value += rela->r_addend;
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_SPARC_NONE:
+      break;
+    case R_SPARC_DISP32:
+      value -= rela->r_offset;
+    case R_SPARC_GLOB_DAT:
+    case R_SPARC_32:
+    case R_SPARC_UA32:
+      buf_write_be32 (buf, value);
+      break;
+    case R_SPARC_DISP16:
+      value -= rela->r_offset;
+    case R_SPARC_16:
+    case R_SPARC_UA16:
+      buf_write_be16 (buf, value);
+      break;
+    case R_SPARC_DISP8:
+      value -= rela->r_offset;
+    case R_SPARC_8:
+      buf_write_8 (buf, value);
+      break;
+    case R_SPARC_LO10:
+      buf_write_be32 (buf, (buf_read_ube32 (buf) & ~0x3ff) | (value & 0x3ff));
+      break;
+    case R_SPARC_HI22:
+      buf_write_be32 (buf, (buf_read_ube32 (buf) & 0xffc00000)
+                          | ((value >> 10) & 0x3fffff));
+      break;
+    case R_SPARC_WDISP30:
+      buf_write_be32 (buf, (buf_read_ube32 (buf) & 0xc0000000)
+                          | (((value - rela->r_offset) >> 2) & 0x3fffffff));
+      break;
+    case R_SPARC_RELATIVE:
+      error (0, 0, "%s: R_SPARC_RELATIVE in ET_EXEC object?",
+            info->dso->filename);
+      return 1;
+    default:
+      return 1;
+    }
+  return 0;
+}
+
+static int
+sparc_prelink_conflict_rel (DSO *dso, struct prelink_info *info,
+                           GElf_Rel *rel, GElf_Addr reladdr)
+{
+  error (0, 0, "%s: Sparc doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+sparc_prelink_conflict_rela (DSO *dso, struct prelink_info *info,
+                            GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  GElf_Addr value;
+  struct prelink_conflict *conflict;
+  struct prelink_tls *tls;
+  GElf_Rela *ret;
+  int r_type;
+
+  if (GELF_R_TYPE (rela->r_info) == R_SPARC_RELATIVE
+      || GELF_R_TYPE (rela->r_info) == R_SPARC_NONE
+      || info->dso == dso)
+    /* Fast path: nothing to do.  */
+    return 0;
+  conflict = prelink_conflict (info, GELF_R_SYM (rela->r_info),
+                              GELF_R_TYPE (rela->r_info));
+  if (conflict == NULL)
+    {
+      if (info->curtls == NULL)
+       return 0;
+      switch (GELF_R_TYPE (rela->r_info))
+       {
+       /* Even local DTPMOD32 and TPOFF32 relocs need conflicts.  */
+       case R_SPARC_TLS_DTPMOD32:
+       case R_SPARC_TLS_TPOFF32:
+       case R_SPARC_TLS_LE_HIX22:
+       case R_SPARC_TLS_LE_LOX10:
+         break;
+       default:
+         return 0;
+       }
+      value = 0;
+    }
+  else if (conflict->ifunc)
+    {
+      error (0, 0, "%s: STT_GNU_IFUNC not handled on SPARC yet",
+            dso->filename);
+      return 1;
+    }
+  else
+    {
+      /* DTPOFF32 wants to see only real conflicts, not lookups
+        with reloc_class RTYPE_CLASS_TLS.  */
+      if (GELF_R_TYPE (rela->r_info) == R_SPARC_TLS_DTPOFF32
+         && conflict->lookup.tls == conflict->conflict.tls
+         && conflict->lookupval == conflict->conflictval)
+       return 0;
+
+      value = conflict_lookup_value (conflict);
+    }
+  ret = prelink_conflict_add_rela (info);
+  if (ret == NULL)
+    return 1;
+  ret->r_offset = rela->r_offset;
+  value += rela->r_addend;
+  r_type = GELF_R_TYPE (rela->r_info);
+  switch (r_type)
+    {
+    case R_SPARC_DISP32:
+      value -= rela->r_offset;
+    case R_SPARC_GLOB_DAT:
+    case R_SPARC_32:
+      r_type = R_SPARC_32;
+      break;
+    case R_SPARC_DISP16:
+      value -= rela->r_offset;
+    case R_SPARC_16:
+      r_type = R_SPARC_16;
+      break;
+    case R_SPARC_DISP8:
+      value -= rela->r_offset;
+    case R_SPARC_8:
+      r_type = R_SPARC_8;
+      break;
+    /* Attempt to transform all reloc which read-modify-write into
+       simple writes.  */
+    case R_SPARC_LO10:
+      value = (read_ube32 (dso, rela->r_offset) & ~0x3ff) | (value & 0x3ff);
+      r_type = R_SPARC_32;
+      break;
+    case R_SPARC_HI22:
+      value = (read_ube32 (dso, rela->r_offset) & 0xffc00000)
+             | ((value >> 10) & 0x3fffff);
+      r_type = R_SPARC_32;
+      break;
+    case R_SPARC_WDISP30:
+      value = (read_ube32 (dso, rela->r_offset) & 0xc0000000)
+             | (((value - rela->r_offset) >> 2) & 0x3fffffff);
+      r_type = R_SPARC_32;
+      break;
+    case R_SPARC_UA16:
+    case R_SPARC_UA32:
+    case R_SPARC_JMP_SLOT:
+      break;
+    case R_SPARC_TLS_DTPMOD32:
+    case R_SPARC_TLS_DTPOFF32:
+    case R_SPARC_TLS_TPOFF32:
+    case R_SPARC_TLS_LE_HIX22:
+    case R_SPARC_TLS_LE_LOX10:
+      if (conflict != NULL
+         && (conflict->reloc_class != RTYPE_CLASS_TLS
+             || conflict->lookup.tls == NULL))
+       {
+         error (0, 0, "%s: TLS reloc not resolving to STT_TLS symbol",
+                dso->filename);
+         return 1;
+       }
+      r_type = R_SPARC_32;
+      tls = conflict ? conflict->lookup.tls : info->curtls;
+      switch (GELF_R_TYPE (rela->r_info))
+       {
+       case R_SPARC_TLS_DTPMOD32:
+         value = tls->modid;
+         break;
+       case R_SPARC_TLS_DTPOFF32:
+         break;
+       case R_SPARC_TLS_TPOFF32:
+         value -= tls->offset;
+         break;
+       case R_SPARC_TLS_LE_HIX22:
+         value -= tls->offset;
+         value = (read_ube32 (dso, rela->r_offset) & 0xffc00000)
+                 | (((~value) >> 10) & 0x3fffff);
+         break;
+       case R_SPARC_TLS_LE_LOX10:
+         value -= tls->offset;
+         value = (read_ube32 (dso, rela->r_offset) & 0xffffe000) | 0x1c00
+                 | (value & 0x3ff);
+         break;
+       }
+      break;
+    default:
+      error (0, 0, "%s: Unknown Sparc relocation type %d", dso->filename,
+            r_type);
+      return 1;
+    }
+  ret->r_info = GELF_R_INFO (0, r_type);
+  ret->r_addend = (Elf32_Sword) value;
+  return 0;
+}
+
+static int
+sparc_rel_to_rela (DSO *dso, GElf_Rel *rel, GElf_Rela *rela)
+{
+  error (0, 0, "%s: Sparc doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+sparc_need_rel_to_rela (DSO *dso, int first, int last)
+{
+  return 0;
+}
+
+static int
+sparc_arch_prelink (struct prelink_info *info)
+{
+  return 0;
+}
+
+static int
+sparc_undo_prelink_rela (DSO *dso, GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  int sec;
+
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_SPARC_NONE:
+      return 0;
+    case R_SPARC_RELATIVE:
+      /* 32-bit SPARC handles RELATIVE relocs as
+        *(int *)rela->r_offset += l_addr + rela->r_addend.
+        RELATIVE relocs against .got traditionally used to have the
+        addend in memory pointed by r_offset and 0 r_addend,
+        other RELATIVE relocs and more recent RELATIVE relocs have 0
+        in memory and non-zero r_addend.
+        Always store 0 to memory when doing undo.  */
+      assert (rela->r_addend == 0);
+      rela->r_addend = (Elf32_Sword) read_ube32 (dso, rela->r_offset);
+      write_be32 (dso, rela->r_offset, 0);
+      /* Tell undo_prelink_rela routine it should update the
+        relocation.  */
+      return 2;
+    case R_SPARC_GLOB_DAT:
+    case R_SPARC_32:
+    case R_SPARC_UA32:
+    case R_SPARC_DISP32:
+    case R_SPARC_TLS_DTPMOD32:
+    case R_SPARC_TLS_DTPOFF32:
+    case R_SPARC_TLS_TPOFF32:
+      write_be32 (dso, rela->r_offset, 0);
+      break;
+    case R_SPARC_JMP_SLOT:
+      sec = addr_to_sec (dso, rela->r_offset);
+      if (sec != -1)
+       {
+         /* sethi .-.plt, %g1
+            b,a .plt+0  */
+         write_be32 (dso, rela->r_offset,
+                     0x03000000
+                     | ((rela->r_offset - dso->shdr[sec].sh_addr)
+                        & 0x3fffff));
+         write_be32 (dso, rela->r_offset + 4,
+                     0x30800000
+                     | (((dso->shdr[sec].sh_addr - rela->r_offset - 4) >> 2)
+                        & 0x3fffff));
+       }
+      break;
+    case R_SPARC_8:
+    case R_SPARC_DISP8:
+      write_8 (dso, rela->r_offset, 0);
+      break;
+    case R_SPARC_16:
+    case R_SPARC_UA16:
+    case R_SPARC_DISP16:
+      write_be16 (dso, rela->r_offset, 0);
+      break;
+    case R_SPARC_LO10:
+      write_be32 (dso, rela->r_offset,
+                 read_ube32 (dso, rela->r_offset) & ~0x3ff);
+      break;
+    case R_SPARC_TLS_LE_LOX10:
+      write_be32 (dso, rela->r_offset,
+                 read_ube32 (dso, rela->r_offset) & 0xffffe000);
+      break;
+    case R_SPARC_HI22:
+    case R_SPARC_TLS_LE_HIX22:
+      write_be32 (dso, rela->r_offset,
+                 read_ube32 (dso, rela->r_offset) & 0xffc00000);
+      break;
+    case R_SPARC_WDISP30:
+      write_be32 (dso, rela->r_offset,
+                 read_ube32 (dso, rela->r_offset) & 0xc0000000);
+      break;
+    case R_SPARC_COPY:
+      if (dso->ehdr.e_type == ET_EXEC)
+       /* COPY relocs are handled specially in generic code.  */
+       return 0;
+      error (0, 0, "%s: R_SPARC_COPY reloc in shared library?", dso->filename);
+      return 1;
+    default:
+      error (0, 0, "%s: Unknown sparc relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+sparc_reloc_size (int reloc_type)
+{
+  switch (reloc_type)
+    {
+    case R_SPARC_8:
+    case R_SPARC_DISP8:
+      return 1;
+    case R_SPARC_16:
+    case R_SPARC_DISP16:
+    case R_SPARC_UA16:
+      return 2;
+    default:
+      break;
+    }
+  return 4;
+}
+
+static int
+sparc_reloc_class (int reloc_type)
+{
+  switch (reloc_type)
+    {
+    case R_SPARC_COPY: return RTYPE_CLASS_COPY;
+    case R_SPARC_JMP_SLOT: return RTYPE_CLASS_PLT;
+    case R_SPARC_TLS_DTPMOD32:
+    case R_SPARC_TLS_DTPOFF32:
+    case R_SPARC_TLS_TPOFF32:
+    case R_SPARC_TLS_LE_HIX22:
+    case R_SPARC_TLS_LE_LOX10:
+      return RTYPE_CLASS_TLS;
+    default: return RTYPE_CLASS_VALID;
+    }
+}
+
+PL_ARCH = {
+  .name = "SPARC",
+  .class = ELFCLASS32,
+  .machine = EM_SPARC,
+  .alternate_machine = { EM_SPARC32PLUS },
+  .R_JMP_SLOT = R_SPARC_JMP_SLOT,
+  .R_COPY = R_SPARC_COPY,
+  .R_RELATIVE = R_SPARC_RELATIVE,
+  .rtype_class_valid = RTYPE_CLASS_VALID,
+  .dynamic_linker = "/lib/ld-linux.so.2",
+  .adjust_dyn = sparc_adjust_dyn,
+  .adjust_rel = sparc_adjust_rel,
+  .adjust_rela = sparc_adjust_rela,
+  .prelink_rel = sparc_prelink_rel,
+  .prelink_rela = sparc_prelink_rela,
+  .prelink_conflict_rel = sparc_prelink_conflict_rel,
+  .prelink_conflict_rela = sparc_prelink_conflict_rela,
+  .apply_conflict_rela = sparc_apply_conflict_rela,
+  .apply_rel = sparc_apply_rel,
+  .apply_rela = sparc_apply_rela,
+  .rel_to_rela = sparc_rel_to_rela,
+  .need_rel_to_rela = sparc_need_rel_to_rela,
+  .reloc_size = sparc_reloc_size,
+  .reloc_class = sparc_reloc_class,
+  .max_reloc_size = 4,
+  .arch_prelink = sparc_arch_prelink,
+  .undo_prelink_rela = sparc_undo_prelink_rela,
+  /* Although TASK_UNMAPPED_BASE is 0x70000000, we leave some
+     area so that mmap of /etc/ld.so.cache and ld.so's malloc
+     does not take some library's VA slot.
+     Also, if this guard area isn't too small, typically
+     even dlopened libraries will get the slots they desire.  */
+  .mmap_base = 0x71000000LL,
+  .mmap_end =  0x80000000LL,
+  .max_page_size = 0x10000,
+  .page_size = 0x1000
+};
diff --git a/src/arch-sparc64.c b/src/arch-sparc64.c
new file mode 100644 (file)
index 0000000..63e107f
--- /dev/null
@@ -0,0 +1,849 @@
+/* Copyright (C) 2001, 2002, 2004, 2009 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <locale.h>
+#include <error.h>
+#include <argp.h>
+#include <stdlib.h>
+
+#include "prelink.h"
+
+#define SPARC64_R_TYPE(info) (GELF_R_TYPE (info) & 0xff)
+
+static int
+sparc64_adjust_dyn (DSO *dso, int n, GElf_Dyn *dyn, GElf_Addr start,
+                   GElf_Addr adjust)
+{
+  if (dyn->d_tag == DT_PLTGOT)
+    {
+      int i;
+
+      for (i = 1; i < dso->ehdr.e_shnum; ++i)
+       if (! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                             dso->shdr[i].sh_name), ".got"))
+         {
+           Elf64_Addr data;
+
+           data = read_ube64 (dso, dso->shdr[i].sh_addr);
+           /* .got[0] points to _DYNAMIC, it needs to be adjusted.  */
+           if (data == dso->shdr[n].sh_addr && data >= start)
+             write_be64 (dso, dso->shdr[i].sh_addr, data + adjust);
+           break;
+         }
+    }
+
+  return 0;
+}
+
+static int
+sparc64_adjust_rel (DSO *dso, GElf_Rel *rel, GElf_Addr start,
+                   GElf_Addr adjust)
+{
+  error (0, 0, "%s: Sparc doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+sparc64_adjust_rela (DSO *dso, GElf_Rela *rela, GElf_Addr start,
+                    GElf_Addr adjust)
+{
+  if (SPARC64_R_TYPE (rela->r_info) == R_SPARC_RELATIVE)
+    {
+      if (rela->r_addend >= start)
+       rela->r_addend += adjust;
+    }
+  else if (SPARC64_R_TYPE (rela->r_info) == R_SPARC_JMP_SLOT
+          && rela->r_addend)
+    {
+      /* .plt[32768+] r_addends are -some_address_in_plt_section.  */
+      if ((- rela->r_addend) >= start)
+       rela->r_addend -= adjust;
+    }
+  return 0;
+}
+
+static int
+sparc64_prelink_rel (struct prelink_info *info, GElf_Rel *rel,
+                    GElf_Addr reladdr)
+{
+  error (0, 0, "%s: Sparc doesn't support REL relocs", info->dso->filename);
+  return 1;
+}
+
+static void
+sparc64_fixup_plt (DSO *dso, GElf_Rela *rela, GElf_Addr value)
+{
+  Elf64_Sxword disp = value - rela->r_offset;
+
+  if (rela->r_addend)
+    {
+      /* .plt[32768+]  */
+      write_be64 (dso, rela->r_offset, value);
+    }
+  else if (disp >= -0x800000 && disp < 0x800000)
+    {
+      /* b,a value
+         nop
+        nop  */
+      write_be32 (dso, rela->r_offset, 0x30800000 | ((disp >> 2) & 0x3fffff));
+      write_be32 (dso, rela->r_offset + 4, 0x01000000);
+      write_be32 (dso, rela->r_offset + 8, 0x01000000);
+    }
+  else if (! (value >> 32))
+    {
+      /* sethi %hi(value), %g1
+        jmpl %g1 + %lo(value), %g0
+         nop  */
+      write_be32 (dso, rela->r_offset, 0x03000000 | ((value >> 10) & 0x3fffff));
+      write_be32 (dso, rela->r_offset + 4, 0x81c06000 | (value & 0x3ff));
+      write_be32 (dso, rela->r_offset + 8, 0x01000000);
+    }
+  else if ((rela->r_offset + 4 > value
+           && ((rela->r_offset - value) >> 31) == 0)
+          || (value > rela->r_offset + 4
+              && ((value - rela->r_offset - 4) >> 31) == 0))
+    {
+      /* mov %o7, %g1
+        call value
+         mov %g1, %o7  */
+      write_be32 (dso, rela->r_offset, 0x8210000f);
+      write_be32 (dso, rela->r_offset + 4, 0x40000000
+                 | (((value - rela->r_offset - 4) >> 2) & 0x3fffffff));
+      write_be32 (dso, rela->r_offset + 8, 0x9e100001);
+    }
+  else
+    {
+      unsigned int csts[4];
+      int i = 0;
+
+      /* sethi %hh(value), %g1
+        sethi %lm(value), %g5
+        or %g1, %hm(value), %g1
+        or %g5, %lo(value), %g5
+        sllx %g1, 32, %g1
+        jmpl %g1 + %g5, %g0
+         nop  */
+
+      csts[0] = value >> 42;
+      csts[1] = (value >> 32) & 0x3ff;
+      csts[2] = (value >> 10) & 0x3fffff;
+      csts[3] = value & 0x3ff;
+      write_be32 (dso, rela->r_offset, 0x03000000 | csts[0]);
+      write_be32 (dso, rela->r_offset + 4, 0x0b000000 | csts[2]);
+      /* Sparc64 shared libs are often 0xfffff800XXXXXXXX, so optimize
+        for this common case.  */
+      if (csts[1] == 0)
+       write_be32 (dso, rela->r_offset + 8, 0x83287020);
+      else
+       write_be32 (dso, rela->r_offset + 8, 0x82106000 | csts[1]);
+      write_be32 (dso, rela->r_offset + 12, 0x8a116000 | csts[3]);
+      if (csts[1] != 0)
+       write_be32 (dso, rela->r_offset + 16, 0x83287020), i = 4;
+      write_be32 (dso, rela->r_offset + 16 + i, 0x81c04005);
+      write_be32 (dso, rela->r_offset + 20 + i, 0x01000000);
+    }
+}
+
+static int
+sparc64_prelink_rela (struct prelink_info *info, GElf_Rela *rela,
+                     GElf_Addr relaaddr)
+{
+  DSO *dso = info->dso;
+  GElf_Addr value;
+
+  if (SPARC64_R_TYPE (rela->r_info) == R_SPARC_NONE)
+    return 0;
+  else if (SPARC64_R_TYPE (rela->r_info) == R_SPARC_RELATIVE)
+    {
+      /* 64-bit SPARC handles RELATIVE relocs as
+        *(long *)rela->r_offset = l_addr + rela->r_addend,
+        so we must update the memory.  */
+      write_be64 (dso, rela->r_offset, rela->r_addend);
+      return 0;
+    }
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        SPARC64_R_TYPE (rela->r_info));
+  value += rela->r_addend;
+  switch (SPARC64_R_TYPE (rela->r_info))
+    {
+    case R_SPARC_GLOB_DAT:
+    case R_SPARC_64:
+    case R_SPARC_UA64:
+      write_be64 (dso, rela->r_offset, value);
+      break;
+    case R_SPARC_32:
+    case R_SPARC_UA32:
+      write_be32 (dso, rela->r_offset, value);
+      break;
+    case R_SPARC_JMP_SLOT:
+      sparc64_fixup_plt (dso, rela, value);
+      break;
+    case R_SPARC_8:
+      write_8 (dso, rela->r_offset, value);
+      break;
+    case R_SPARC_16:
+    case R_SPARC_UA16:
+      write_be16 (dso, rela->r_offset, value);
+      break;
+    case R_SPARC_LO10:
+      write_be32 (dso, rela->r_offset,
+                 (value & 0x3ff) | (read_ube32 (dso, rela->r_offset) & ~0x3ff));
+      break;
+    case R_SPARC_LM22:
+    case R_SPARC_HI22:
+      write_be32 (dso, rela->r_offset,
+                 ((value >> 10) & 0x3fffff)
+                 | (read_ube32 (dso, rela->r_offset) & 0xffc00000));
+      break;
+    case R_SPARC_DISP8:
+      write_8 (dso, rela->r_offset, value - rela->r_offset);
+      break;
+    case R_SPARC_DISP16:
+      write_be16 (dso, rela->r_offset, value - rela->r_offset);
+      break;
+    case R_SPARC_DISP32:
+      write_be32 (dso, rela->r_offset, value - rela->r_offset);
+      break;
+    case R_SPARC_DISP64:
+      write_be64 (dso, rela->r_offset, value - rela->r_offset);
+      break;
+    case R_SPARC_WDISP30:
+      write_be32 (dso, rela->r_offset,
+                 (((value - rela->r_offset) >> 2) & 0x3fffffff)
+                 | (read_ube32 (dso, rela->r_offset) & 0xc0000000));
+      break;
+    case R_SPARC_TLS_DTPOFF64:
+      write_be64 (dso, rela->r_offset, value + rela->r_addend);
+      break;
+    /* DTPMOD64 and TPOFF64 is impossible to predict in shared libraries
+       unless prelink sets the rules.  */
+    case R_SPARC_TLS_DTPMOD64:
+      if (dso->ehdr.e_type == ET_EXEC)
+       {
+         error (0, 0, "%s: R_SPARC_TLS_DTPMOD64 reloc in executable?",
+                dso->filename);
+         return 1;
+       }
+      break;
+    case R_SPARC_TLS_TPOFF64:
+      if (dso->ehdr.e_type == ET_EXEC && info->resolvetls)
+       write_be64 (dso, rela->r_offset,
+                   value + rela->r_addend - info->resolvetls->offset);
+      break;
+    case R_SPARC_TLS_LE_HIX22:
+      if (dso->ehdr.e_type == ET_EXEC && info->resolvetls)
+       write_be32 (dso, rela->r_offset,
+                   (read_ube32 (dso, rela->r_offset) & 0xffc00000)
+                   | (((~(value + rela->r_addend - info->resolvetls->offset))
+                       >> 10) & 0x3fffff));
+      break;
+    case R_SPARC_TLS_LE_LOX10:
+      if (dso->ehdr.e_type == ET_EXEC && info->resolvetls)
+       write_be32 (dso, rela->r_offset,
+                   (read_ube32 (dso, rela->r_offset) & 0xffffe000) | 0x1c00
+                   | ((value + rela->r_addend - info->resolvetls->offset)
+                      & 0x3ff));
+      break;
+    case R_SPARC_H44:
+      write_be32 (dso, rela->r_offset,
+                 ((value >> 22) & 0x3fffff)
+                 | (read_ube32 (dso, rela->r_offset) & 0xffc00000));
+      break;
+    case R_SPARC_M44:
+      write_be32 (dso, rela->r_offset,
+                 ((value >> 12) & 0x3ff)
+                 | (read_ube32 (dso, rela->r_offset) & ~0x3ff));
+      break;
+    case R_SPARC_L44:
+      write_be32 (dso, rela->r_offset,
+                 (value & 0xfff) | (read_ube32 (dso, rela->r_offset) & ~0xfff));
+      break;
+    case R_SPARC_HH22:
+      write_be32 (dso, rela->r_offset,
+                 ((value >> 42) & 0x3fffff)
+                 | (read_ube32 (dso, rela->r_offset) & 0xffc00000));
+      break;
+    case R_SPARC_HM10:
+      write_be32 (dso, rela->r_offset,
+                 ((value >> 32) & 0x3ff)
+                 | (read_ube32 (dso, rela->r_offset) & ~0x3ff));
+      break;
+    case R_SPARC_OLO10:
+      write_be32 (dso, rela->r_offset,
+                 (((value & 0x3ff) + (GELF_R_TYPE (rela->r_info) >> 8)) & 0x1fff)
+                 | (read_ube32 (dso, rela->r_offset) & ~0x1fff));
+      break;
+    case R_SPARC_COPY:
+      if (dso->ehdr.e_type == ET_EXEC)
+       /* COPY relocs are handled specially in generic code.  */
+       return 0;
+      error (0, 0, "%s: R_SPARC_COPY reloc in shared library?", dso->filename);
+      return 1;
+    default:
+      error (0, 0, "%s: Unknown sparc relocation type %d", dso->filename,
+            (int) SPARC64_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+sparc64_apply_conflict_rela (struct prelink_info *info, GElf_Rela *rela,
+                            char *buf, GElf_Addr dest_addr)
+{
+  switch (SPARC64_R_TYPE (rela->r_info))
+    {
+    case R_SPARC_64:
+    case R_SPARC_UA64:
+      buf_write_be64 (buf, rela->r_addend);
+      break;
+    case R_SPARC_32:
+    case R_SPARC_UA32:
+      buf_write_be32 (buf, rela->r_addend);
+      break;
+    case R_SPARC_16:
+    case R_SPARC_UA16:
+      buf_write_be16 (buf, rela->r_addend);
+      break;
+    case R_SPARC_8:
+      buf_write_8 (buf, rela->r_addend);
+      break;
+    default:
+      abort ();
+    }
+  return 0;
+}
+
+static int
+sparc64_apply_rel (struct prelink_info *info, GElf_Rel *rel, char *buf)
+{
+  error (0, 0, "%s: Sparc doesn't support REL relocs", info->dso->filename);
+  return 1;
+}
+
+static int
+sparc64_apply_rela (struct prelink_info *info, GElf_Rela *rela, char *buf)
+{
+  GElf_Addr value;
+
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        SPARC64_R_TYPE (rela->r_info));
+  value += rela->r_addend;
+  switch (SPARC64_R_TYPE (rela->r_info))
+    {
+    case R_SPARC_NONE:
+      break;
+    case R_SPARC_DISP64:
+      value -= rela->r_offset;
+    case R_SPARC_GLOB_DAT:
+    case R_SPARC_64:
+    case R_SPARC_UA64:
+      buf_write_be64 (buf, value);
+      break;
+    case R_SPARC_DISP32:
+      value -= rela->r_offset;
+    case R_SPARC_32:
+    case R_SPARC_UA32:
+      buf_write_be32 (buf, value);
+      break;
+    case R_SPARC_DISP16:
+      value -= rela->r_offset;
+    case R_SPARC_16:
+    case R_SPARC_UA16:
+      buf_write_be16 (buf, value);
+      break;
+    case R_SPARC_DISP8:
+      value -= rela->r_offset;
+    case R_SPARC_8:
+      buf_write_8 (buf, value);
+      break;
+    case R_SPARC_LO10:
+      buf_write_be32 (buf, (buf_read_ube32 (buf) & ~0x3ff) | (value & 0x3ff));
+      break;
+    case R_SPARC_LM22:
+    case R_SPARC_HI22:
+      buf_write_be32 (buf, (buf_read_ube32 (buf) & 0xffc00000)
+                          | ((value >> 10) & 0x3fffff));
+      break;
+    case R_SPARC_WDISP30:
+      buf_write_be32 (buf, (buf_read_ube32 (buf) & 0xc0000000)
+                          | (((value - rela->r_offset) >> 2) & 0x3fffffff));
+      break;
+    case R_SPARC_H44:
+      buf_write_be32 (buf, (buf_read_ube32 (buf) & 0xffc00000)
+                          | ((value >> 22) & 0x3fffff));
+      break;
+    case R_SPARC_M44:
+      buf_write_be32 (buf, (buf_read_ube32 (buf) & ~0x3ff)
+                          | ((value >> 12) & 0x3ff));
+      break;
+    case R_SPARC_L44:
+      buf_write_be32 (buf, (buf_read_ube32 (buf) & ~0xfff) | (value & 0xfff));
+      break;
+    case R_SPARC_HH22:
+      buf_write_be32 (buf, (buf_read_ube32 (buf) & 0xffc00000)
+                          | ((value >> 42) & 0x3fffff));
+      break;
+    case R_SPARC_HM10:
+      buf_write_be32 (buf, (buf_read_ube32 (buf) & ~0x3ff)
+                          | ((value >> 32) & 0x3ff));
+      break;
+    case R_SPARC_OLO10:
+      buf_write_be32 (buf, (buf_read_ube32 (buf) & ~0x1fff)
+                          | (((value & 0x3ff)
+                              + (GELF_R_TYPE (rela->r_info) >> 8)) & 0x1fff));
+      break;
+    case R_SPARC_RELATIVE:
+      error (0, 0, "%s: R_SPARC_RELATIVE in ET_EXEC object?",
+            info->dso->filename);
+      return 1;
+    default:
+      return 1;
+    }
+  return 0;
+}
+
+static int
+sparc64_prelink_conflict_rel (DSO *dso, struct prelink_info *info,
+                             GElf_Rel *rel, GElf_Addr reladdr)
+{
+  error (0, 0, "%s: Sparc doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+sparc64_prelink_conflict_rela (DSO *dso, struct prelink_info *info,
+                              GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  GElf_Addr value;
+  struct prelink_conflict *conflict;
+  struct prelink_tls *tls;
+  GElf_Rela *ret;
+  int r_type;
+
+  if (SPARC64_R_TYPE (rela->r_info) == R_SPARC_RELATIVE
+      || SPARC64_R_TYPE (rela->r_info) == R_SPARC_NONE
+      || info->dso == dso)
+    /* Fast path: nothing to do.  */
+    return 0;
+  conflict = prelink_conflict (info, GELF_R_SYM (rela->r_info),
+                              SPARC64_R_TYPE (rela->r_info));
+  if (conflict == NULL)
+    {
+      if (info->curtls == NULL)
+       return 0;
+      switch (SPARC64_R_TYPE (rela->r_info))
+       {
+       /* Even local DTPMOD64 and TPOFF64 relocs need conflicts.  */
+       case R_SPARC_TLS_DTPMOD64:
+       case R_SPARC_TLS_TPOFF64:
+       case R_SPARC_TLS_LE_HIX22:
+       case R_SPARC_TLS_LE_LOX10:
+         break;
+       default:
+         return 0;
+       }
+      value = 0;
+    }
+  else if (conflict->ifunc)
+    {
+      error (0, 0, "%s: STT_GNU_IFUNC not handled on SPARC64 yet",
+            dso->filename);
+      return 1;
+    }
+  else
+    {
+      /* DTPOFF64 wants to see only real conflicts, not lookups
+        with reloc_class RTYPE_CLASS_TLS.  */
+      if (SPARC64_R_TYPE (rela->r_info) == R_SPARC_TLS_DTPOFF64
+         && conflict->lookup.tls == conflict->conflict.tls
+         && conflict->lookupval == conflict->conflictval)
+       return 0;
+
+      value = conflict_lookup_value (conflict);
+    }
+  ret = prelink_conflict_add_rela (info);
+  if (ret == NULL)
+    return 1;
+  ret->r_offset = rela->r_offset;
+  value += rela->r_addend;
+  r_type = SPARC64_R_TYPE (rela->r_info);
+  switch (r_type)
+    {
+    case R_SPARC_DISP64:
+      value -= rela->r_offset;
+    case R_SPARC_GLOB_DAT:
+    case R_SPARC_64:
+      r_type = R_SPARC_64;
+      break;
+    case R_SPARC_DISP32:
+      value -= rela->r_offset;
+    case R_SPARC_32:
+      r_type = R_SPARC_32;
+      break;
+    case R_SPARC_DISP16:
+      value -= rela->r_offset;
+    case R_SPARC_16:
+      r_type = R_SPARC_16;
+      break;
+    case R_SPARC_DISP8:
+      value -= rela->r_offset;
+    case R_SPARC_8:
+      r_type = R_SPARC_8;
+      break;
+    /* Attempt to transform all reloc which read-modify-write into
+       simple writes.  */
+    case R_SPARC_LO10:
+      value = (read_ube32 (dso, rela->r_offset) & ~0x3ff) | (value & 0x3ff);
+      r_type = R_SPARC_32;
+      break;
+    case R_SPARC_LM22:
+    case R_SPARC_HI22:
+      value = (read_ube32 (dso, rela->r_offset) & 0xffc00000)
+             | ((value >> 10) & 0x3fffff);
+      r_type = R_SPARC_32;
+      break;
+    case R_SPARC_WDISP30:
+      value = (read_ube32 (dso, rela->r_offset) & 0xc0000000)
+             | (((value - rela->r_offset) >> 2) & 0x3fffffff);
+      r_type = R_SPARC_32;
+      break;
+    case R_SPARC_H44:
+      value = (read_ube32 (dso, rela->r_offset) & 0xffc00000)
+             | ((value >> 22) & 0x3fffff);
+      r_type = R_SPARC_32;
+      break;
+    case R_SPARC_M44:
+      value = (read_ube32 (dso, rela->r_offset) & ~0x3ff)
+             | ((value >> 12) & 0x3ff);
+      r_type = R_SPARC_32;
+      break;
+    case R_SPARC_L44:
+      value = (read_ube32 (dso, rela->r_offset) & ~0xfff) | (value & 0xfff);
+      r_type = R_SPARC_32;
+      break;
+    case R_SPARC_HH22:
+      value = (read_ube32 (dso, rela->r_offset) & 0xffc00000)
+             | ((value >> 42) & 0x3fffff);
+      r_type = R_SPARC_32;
+      break;
+    case R_SPARC_HM10:
+      value = (read_ube32 (dso, rela->r_offset) & ~0x3ff)
+             | ((value >> 32) & 0x3ff);
+      r_type = R_SPARC_32;
+      break;
+    case R_SPARC_OLO10:
+      value = (read_ube32 (dso, rela->r_offset) & ~0x1fff)
+             | (((value & 0x3ff) + (GELF_R_TYPE (rela->r_info) >> 8)) & 0x1fff);
+      r_type = R_SPARC_32;
+      break;
+    case R_SPARC_JMP_SLOT:
+      if (rela->r_addend)
+       r_type = R_SPARC_64;
+      break;
+    case R_SPARC_UA16:
+    case R_SPARC_UA32:
+    case R_SPARC_UA64:
+      break;
+    case R_SPARC_TLS_DTPMOD64:
+    case R_SPARC_TLS_DTPOFF64:
+    case R_SPARC_TLS_TPOFF64:
+    case R_SPARC_TLS_LE_HIX22:
+    case R_SPARC_TLS_LE_LOX10:
+      if (conflict != NULL
+         && (conflict->reloc_class != RTYPE_CLASS_TLS
+             || conflict->lookup.tls == NULL))
+       {
+         error (0, 0, "%s: TLS reloc not resolving to STT_TLS symbol",
+                dso->filename);
+         return 1;
+       }
+      tls = conflict ? conflict->lookup.tls : info->curtls;
+      switch (r_type)
+       {
+       case R_SPARC_TLS_DTPMOD64:
+         r_type = R_SPARC_64;
+         value = tls->modid;
+         break;
+       case R_SPARC_TLS_DTPOFF64:
+         r_type = R_SPARC_64;
+         break;
+       case R_SPARC_TLS_TPOFF64:
+         r_type = R_SPARC_64;
+         value -= tls->offset;
+         break;
+       case R_SPARC_TLS_LE_HIX22:
+         r_type = R_SPARC_32;
+         value -= tls->offset;
+         value = (read_ube32 (dso, rela->r_offset) & 0xffc00000)
+                 | (((~value) >> 10) & 0x3fffff);
+         break;
+       case R_SPARC_TLS_LE_LOX10:
+         r_type = R_SPARC_32;
+         value -= tls->offset;
+         value = (read_ube32 (dso, rela->r_offset) & 0xffffe000) | 0x1c00
+                 | (value & 0x3ff);
+         break;
+       }
+      break;
+    default:
+      error (0, 0, "%s: Unknown Sparc relocation type %d", dso->filename,
+            r_type);
+      return 1;
+    }
+  ret->r_info = GELF_R_INFO (0, r_type);
+  ret->r_addend = value;
+  return 0;
+}
+
+static int
+sparc64_rel_to_rela (DSO *dso, GElf_Rel *rel, GElf_Rela *rela)
+{
+  error (0, 0, "%s: Sparc doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+sparc64_need_rel_to_rela (DSO *dso, int first, int last)
+{
+  return 0;
+}
+
+static int
+sparc64_arch_prelink (struct prelink_info *info)
+{
+  return 0;
+}
+
+static int
+sparc64_undo_prelink_rela (DSO *dso, GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  int sec;
+
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_SPARC_NONE:
+      break;
+    case R_SPARC_JMP_SLOT:
+      sec = addr_to_sec (dso, rela->r_offset);
+      if (sec != -1)
+       {
+         if (rela->r_addend == 0)
+           {
+             /* sethi .-.plt, %g1
+                b,a %xcc, .plt+0x20  */
+             write_be32 (dso, rela->r_offset,
+                         0x03000000
+                         | ((rela->r_offset - dso->shdr[sec].sh_addr)
+                            & 0x3fffff));
+             write_be32 (dso, rela->r_offset + 4,
+                         0x30680000
+                         | (((dso->shdr[sec].sh_addr + 32
+                              - rela->r_offset - 4) >> 2)
+                            & 0x7ffff));
+             write_be32 (dso, rela->r_offset + 8, 0x01000000);
+             write_be32 (dso, rela->r_offset + 12, 0x01000000);
+             write_be32 (dso, rela->r_offset + 16, 0x01000000);
+             write_be32 (dso, rela->r_offset + 20, 0x01000000);
+             write_be32 (dso, rela->r_offset + 24, 0x01000000);
+             write_be32 (dso, rela->r_offset + 28, 0x01000000);
+           }
+         else
+           {
+             GElf_Addr slot = ((rela->r_offset + 0x400
+                                - dso->shdr[sec].sh_addr)
+                               / 0x1400) * 0x1400
+                              + dso->shdr[sec].sh_addr - 0x400;
+             /* slot+12 contains: ldx [%o7 + X], %g1  */
+             GElf_Addr ptr = slot + (read_ube32 (dso, slot + 12) & 0xfff) + 4;
+
+             write_be64 (dso, rela->r_offset,
+                         dso->shdr[sec].sh_addr
+                         - (slot + ((rela->r_offset - ptr) / 8) * 24 + 4));
+           }
+       }
+      break;
+    case R_SPARC_RELATIVE:
+    case R_SPARC_GLOB_DAT:
+    case R_SPARC_64:
+    case R_SPARC_UA64:
+    case R_SPARC_DISP64:
+    case R_SPARC_TLS_DTPMOD64:
+    case R_SPARC_TLS_DTPOFF64:
+    case R_SPARC_TLS_TPOFF64:
+      write_be64 (dso, rela->r_offset, 0);
+      break;
+    case R_SPARC_32:
+    case R_SPARC_UA32:
+    case R_SPARC_DISP32:
+      write_be32 (dso, rela->r_offset, 0);
+      break;
+    case R_SPARC_8:
+    case R_SPARC_DISP8:
+      write_8 (dso, rela->r_offset, 0);
+      break;
+    case R_SPARC_16:
+    case R_SPARC_UA16:
+    case R_SPARC_DISP16:
+      write_be16 (dso, rela->r_offset, 0);
+      break;
+    case R_SPARC_LO10:
+      write_be32 (dso, rela->r_offset,
+                 read_ube32 (dso, rela->r_offset) & ~0x3ff);
+      break;
+    case R_SPARC_LM22:
+    case R_SPARC_HI22:
+      write_be32 (dso, rela->r_offset,
+                 read_ube32 (dso, rela->r_offset) & 0xffc00000);
+      break;
+    case R_SPARC_WDISP30:
+      write_be32 (dso, rela->r_offset,
+                 read_ube32 (dso, rela->r_offset) & 0xc0000000);
+      break;
+    case R_SPARC_H44:
+      write_be32 (dso, rela->r_offset,
+                 read_ube32 (dso, rela->r_offset) & 0xffc00000);
+      break;
+    case R_SPARC_M44:
+      write_be32 (dso, rela->r_offset,
+                 read_ube32 (dso, rela->r_offset) & ~0x3ff);
+      break;
+    case R_SPARC_L44:
+      write_be32 (dso, rela->r_offset,
+                 read_ube32 (dso, rela->r_offset) & ~0xfff);
+      break;
+    case R_SPARC_HH22:
+      write_be32 (dso, rela->r_offset,
+                 read_ube32 (dso, rela->r_offset) & 0xffc00000);
+      break;
+    case R_SPARC_HM10:
+      write_be32 (dso, rela->r_offset,
+                 read_ube32 (dso, rela->r_offset) & ~0x3ff);
+      break;
+    case R_SPARC_OLO10:
+      write_be32 (dso, rela->r_offset,
+                 read_ube32 (dso, rela->r_offset) & ~0x1fff);
+      break;
+    case R_SPARC_TLS_LE_LOX10:
+      write_be32 (dso, rela->r_offset,
+                 read_ube32 (dso, rela->r_offset) & 0xffffe000);
+      break;
+    case R_SPARC_TLS_LE_HIX22:
+      write_be32 (dso, rela->r_offset,
+                 read_ube32 (dso, rela->r_offset) & 0xffc00000);
+      break;
+    case R_SPARC_COPY:
+      if (dso->ehdr.e_type == ET_EXEC)
+       /* COPY relocs are handled specially in generic code.  */
+       return 0;
+      error (0, 0, "%s: R_SPARC_COPY reloc in shared library?", dso->filename);
+      return 1;
+    default:
+      error (0, 0, "%s: Unknown sparc relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+sparc64_reloc_size (int reloc_type)
+{
+  switch (reloc_type)
+    {
+    case R_SPARC_8:
+    case R_SPARC_DISP8:
+      return 1;
+    case R_SPARC_16:
+    case R_SPARC_DISP16:
+    case R_SPARC_UA16:
+      return 2;
+    case R_SPARC_RELATIVE:
+    case R_SPARC_64:
+    case R_SPARC_UA64:
+    case R_SPARC_GLOB_DAT:
+      return 8;
+    default:
+      break;
+    }
+  return 4;
+}
+
+static int
+sparc64_reloc_class (int reloc_type)
+{
+  switch (reloc_type)
+    {
+    case R_SPARC_COPY: return RTYPE_CLASS_COPY;
+    case R_SPARC_JMP_SLOT: return RTYPE_CLASS_PLT;
+    case R_SPARC_TLS_DTPMOD64:
+    case R_SPARC_TLS_DTPOFF64:
+    case R_SPARC_TLS_TPOFF64:
+    case R_SPARC_TLS_LE_HIX22:
+    case R_SPARC_TLS_LE_LOX10:
+      return RTYPE_CLASS_TLS;
+    default: return RTYPE_CLASS_VALID;
+    }
+}
+
+PL_ARCH = {
+  .name = "SPARC",
+  .class = ELFCLASS64,
+  .machine = EM_SPARCV9,
+  .alternate_machine = { EM_NONE },
+  .R_JMP_SLOT = R_SPARC_JMP_SLOT,
+  .R_COPY = R_SPARC_COPY,
+  .R_RELATIVE = R_SPARC_RELATIVE,
+  .rtype_class_valid = RTYPE_CLASS_VALID,
+  .dynamic_linker = "/lib64/ld-linux.so.2",
+  .adjust_dyn = sparc64_adjust_dyn,
+  .adjust_rel = sparc64_adjust_rel,
+  .adjust_rela = sparc64_adjust_rela,
+  .prelink_rel = sparc64_prelink_rel,
+  .prelink_rela = sparc64_prelink_rela,
+  .prelink_conflict_rel = sparc64_prelink_conflict_rel,
+  .prelink_conflict_rela = sparc64_prelink_conflict_rela,
+  .apply_conflict_rela = sparc64_apply_conflict_rela,
+  .apply_rel = sparc64_apply_rel,
+  .apply_rela = sparc64_apply_rela,
+  .rel_to_rela = sparc64_rel_to_rela,
+  .need_rel_to_rela = sparc64_need_rel_to_rela,
+  .reloc_size = sparc64_reloc_size,
+  .reloc_class = sparc64_reloc_class,
+  .max_reloc_size = 8,
+  .arch_prelink = sparc64_arch_prelink,
+  .undo_prelink_rela = sparc64_undo_prelink_rela,
+  /* Although TASK_UNMAPPED_BASE is 0xfffff80100000000, we leave some
+     area so that mmap of /etc/ld.so.cache and ld.so's malloc
+     does not take some library's VA slot.
+     Also, if this guard area isn't too small, typically
+     even dlopened libraries will get the slots they desire.  */
+  .mmap_base = 0xfffff80101000000LL,
+  /* If we need yet more space for shared libraries, we can of course
+     expand, but limiting all DSOs into 4 GB means stack overflows
+     jumping to shared library functions is much harder (there is
+     '\0' byte in the address before the bytes that matter).  */
+  .mmap_end =  0xfffff80200000000LL,
+  .max_page_size = 0x100000,
+  .page_size = 0x2000
+};
diff --git a/src/arch-x86_64.c b/src/arch-x86_64.c
new file mode 100644 (file)
index 0000000..3c760ed
--- /dev/null
@@ -0,0 +1,563 @@
+/* Copyright (C) 2001, 2002, 2003, 2004, 2006, 2009 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <locale.h>
+#include <error.h>
+#include <argp.h>
+#include <stdlib.h>
+
+#include "prelink.h"
+
+static int
+x86_64_adjust_dyn (DSO *dso, int n, GElf_Dyn *dyn, GElf_Addr start,
+                  GElf_Addr adjust)
+{
+  if (dyn->d_tag == DT_PLTGOT)
+    {
+      int sec = addr_to_sec (dso, dyn->d_un.d_ptr);
+      Elf64_Addr data;
+
+      if (sec == -1)
+       return 0;
+
+      data = read_ule64 (dso, dyn->d_un.d_ptr);
+      /* If .got.plt[0] points to _DYNAMIC, it needs to be adjusted.  */
+      if (data == dso->shdr[n].sh_addr && data >= start)
+       write_le64 (dso, dyn->d_un.d_ptr, data + adjust);
+
+      data = read_ule64 (dso, dyn->d_un.d_ptr + 8);
+      /* If .got.plt[1] points to .plt + 0x16, it needs to be adjusted.  */
+      if (data && data >= start)
+       {
+         int i;
+
+         for (i = 1; i < dso->ehdr.e_shnum; i++)
+           if (data == dso->shdr[i].sh_addr + 0x16
+               && dso->shdr[i].sh_type == SHT_PROGBITS
+               && strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                       dso->shdr[i].sh_name), ".plt") == 0)
+             {
+               write_le64 (dso, dyn->d_un.d_ptr + 8, data + adjust);
+               break;
+             }
+       }
+    }
+  return 0;
+}
+
+static int
+x86_64_adjust_rel (DSO *dso, GElf_Rel *rel, GElf_Addr start,
+                  GElf_Addr adjust)
+{
+  error (0, 0, "%s: X86-64 doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+x86_64_adjust_rela (DSO *dso, GElf_Rela *rela, GElf_Addr start,
+                   GElf_Addr adjust)
+{
+  Elf64_Addr addr;
+
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_X86_64_RELATIVE:
+      if (rela->r_addend >= start)
+       {
+         if (read_ule64 (dso, rela->r_offset) == rela->r_addend)
+           write_le64 (dso, rela->r_offset, rela->r_addend + adjust);
+         rela->r_addend += adjust;
+       }
+      break;
+    case R_X86_64_IRELATIVE:
+      if (rela->r_addend >= start)
+       rela->r_addend += adjust;
+      /* FALLTHROUGH */
+    case R_X86_64_JUMP_SLOT:
+      addr = read_ule64 (dso, rela->r_offset);
+      if (addr >= start)
+       write_le64 (dso, rela->r_offset, addr + adjust);
+      break;
+    }
+  return 0;
+}
+
+static int
+x86_64_prelink_rel (struct prelink_info *info, GElf_Rel *rel, GElf_Addr reladdr)
+{
+  error (0, 0, "%s: X86-64 doesn't support REL relocs", info->dso->filename);
+  return 1;
+}
+
+static int
+x86_64_prelink_rela (struct prelink_info *info, GElf_Rela *rela,
+                    GElf_Addr relaaddr)
+{
+  DSO *dso;
+  GElf_Addr value;
+
+  dso = info->dso;
+  if (GELF_R_TYPE (rela->r_info) == R_X86_64_NONE
+      || GELF_R_TYPE (rela->r_info) == R_X86_64_IRELATIVE)
+    return 0;
+  else if (GELF_R_TYPE (rela->r_info) == R_X86_64_RELATIVE)
+    {
+      write_le64 (dso, rela->r_offset, rela->r_addend);
+      return 0;
+    }
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_X86_64_GLOB_DAT:
+    case R_X86_64_JUMP_SLOT:
+    case R_X86_64_64:
+      write_le64 (dso, rela->r_offset, value + rela->r_addend);
+      break;
+    case R_X86_64_32:
+      write_le32 (dso, rela->r_offset, value + rela->r_addend);
+      break;
+    case R_X86_64_PC32:
+      write_le32 (dso, rela->r_offset, value + rela->r_addend - rela->r_offset);
+      break;
+    case R_X86_64_DTPOFF64:
+      write_le64 (dso, rela->r_offset, value + rela->r_addend);
+      break;
+    /* DTPMOD64 and TPOFF64 is impossible to predict in shared libraries
+       unless prelink sets the rules.  */
+    case R_X86_64_DTPMOD64:
+      if (dso->ehdr.e_type == ET_EXEC)
+       {
+         error (0, 0, "%s: R_X86_64_DTPMOD64 reloc in executable?",
+                dso->filename);
+         return 1;
+       }
+      break;
+    case R_X86_64_TPOFF64:
+      if (dso->ehdr.e_type == ET_EXEC && info->resolvetls)
+       write_le64 (dso, rela->r_offset,
+                   value + rela->r_addend - info->resolvetls->offset);
+      break;
+    case R_X86_64_COPY:
+      if (dso->ehdr.e_type == ET_EXEC)
+       /* COPY relocs are handled specially in generic code.  */
+       return 0;
+      error (0, 0, "%s: R_X86_64_COPY reloc in shared library?", dso->filename);
+      return 1;
+    default:
+      error (0, 0, "%s: Unknown X86-64 relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+x86_64_apply_conflict_rela (struct prelink_info *info, GElf_Rela *rela,
+                           char *buf, GElf_Addr dest_addr)
+{
+  GElf_Rela *ret;
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_X86_64_GLOB_DAT:
+    case R_X86_64_JUMP_SLOT:
+    case R_X86_64_64:
+      buf_write_le64 (buf, rela->r_addend);
+      break;
+    case R_X86_64_IRELATIVE:
+      if (dest_addr == 0)
+       return 5;
+      ret = prelink_conflict_add_rela (info);
+      if (ret == NULL)
+       return 1;
+      ret->r_offset = dest_addr;
+      ret->r_info = GELF_R_INFO (0, R_X86_64_IRELATIVE);
+      ret->r_addend = rela->r_addend;
+      break;
+    case R_X86_64_32:
+      buf_write_le32 (buf, rela->r_addend);
+      break;
+    default:
+      abort ();
+    }
+  return 0;
+}
+
+static int
+x86_64_apply_rel (struct prelink_info *info, GElf_Rel *rel, char *buf)
+{
+  error (0, 0, "%s: X86-64 doesn't support REL relocs", info->dso->filename);
+  return 1;
+}
+
+static int
+x86_64_apply_rela (struct prelink_info *info, GElf_Rela *rela, char *buf)
+{
+  GElf_Addr value;
+
+  value = info->resolve (info, GELF_R_SYM (rela->r_info),
+                        GELF_R_TYPE (rela->r_info));
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_X86_64_NONE:
+      break;
+    case R_X86_64_GLOB_DAT:
+    case R_X86_64_JUMP_SLOT:
+    case R_X86_64_64:
+      buf_write_le64 (buf, value + rela->r_addend);
+      break;
+    case R_X86_64_32:
+      buf_write_le32 (buf, value + rela->r_addend);
+      break;
+    case R_X86_64_PC32:
+      buf_write_le32 (buf, value + rela->r_addend - rela->r_offset);
+      break;
+    case R_X86_64_COPY:
+      abort ();
+    case R_X86_64_RELATIVE:
+      error (0, 0, "%s: R_X86_64_RELATIVE in ET_EXEC object?", info->dso->filename);
+      return 1;
+    default:
+      return 1;
+    }
+  return 0;
+}
+
+static int
+x86_64_prelink_conflict_rel (DSO *dso, struct prelink_info *info, GElf_Rel *rel,
+                          GElf_Addr reladdr)
+{
+  error (0, 0, "%s: X86-64 doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+x86_64_prelink_conflict_rela (DSO *dso, struct prelink_info *info,
+                           GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  GElf_Addr value;
+  struct prelink_conflict *conflict;
+  struct prelink_tls *tls;
+  GElf_Rela *ret;
+
+  if (GELF_R_TYPE (rela->r_info) == R_X86_64_RELATIVE
+      || GELF_R_TYPE (rela->r_info) == R_X86_64_NONE)
+    /* Fast path: nothing to do.  */
+    return 0;
+  conflict = prelink_conflict (info, GELF_R_SYM (rela->r_info),
+                              GELF_R_TYPE (rela->r_info));
+  if (conflict == NULL)
+    {
+      switch (GELF_R_TYPE (rela->r_info))
+       {
+       /* Even local DTPMOD and TPOFF relocs need conflicts.  */
+       case R_X86_64_DTPMOD64:
+       case R_X86_64_TPOFF64:
+         if (info->curtls == NULL || info->dso == dso)
+           return 0;
+         break;
+       /* Similarly IRELATIVE relocations always need conflicts.  */
+       case R_X86_64_IRELATIVE:
+         break;
+       default:
+         return 0;
+       }
+      value = 0;
+    }
+  else if (info->dso == dso && !conflict->ifunc)
+    return 0;
+  else
+    {
+      /* DTPOFF wants to see only real conflicts, not lookups
+        with reloc_class RTYPE_CLASS_TLS.  */
+      if (GELF_R_TYPE (rela->r_info) == R_X86_64_DTPOFF64
+         && conflict->lookup.tls == conflict->conflict.tls
+         && conflict->lookupval == conflict->conflictval)
+       return 0;
+
+      value = conflict_lookup_value (conflict);
+    }
+  ret = prelink_conflict_add_rela (info);
+  if (ret == NULL)
+    return 1;
+  ret->r_offset = rela->r_offset;
+  ret->r_info = GELF_R_INFO (0, GELF_R_TYPE (rela->r_info));
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_X86_64_GLOB_DAT:
+      ret->r_info = GELF_R_INFO (0, R_X86_64_64);
+      /* FALLTHROUGH */
+    case R_X86_64_JUMP_SLOT:
+    case R_X86_64_64:
+    case R_X86_64_IRELATIVE:
+      ret->r_addend = value + rela->r_addend;
+      if (conflict != NULL && conflict->ifunc)
+       ret->r_info = GELF_R_INFO (0, R_X86_64_IRELATIVE);
+      break;
+    case R_X86_64_32:
+      value += rela->r_addend;
+      ret->r_addend = value;
+      break;
+    case R_X86_64_PC32:
+      ret->r_addend = value + rela->r_addend - rela->r_offset;
+      ret->r_info = GELF_R_INFO (0, R_X86_64_32);
+      break;
+    case R_X86_64_COPY:
+      error (0, 0, "R_X86_64_COPY should not be present in shared libraries");
+      return 1;
+    case R_X86_64_DTPMOD64:
+    case R_X86_64_DTPOFF64:
+    case R_X86_64_TPOFF64:
+      if (conflict != NULL
+         && (conflict->reloc_class != RTYPE_CLASS_TLS
+             || conflict->lookup.tls == NULL))
+       {
+         error (0, 0, "%s: TLS reloc not resolving to STT_TLS symbol",
+                dso->filename);
+         return 1;
+       }
+      tls = conflict ? conflict->lookup.tls : info->curtls;
+      ret->r_info = GELF_R_INFO (0, R_X86_64_64);
+      switch (GELF_R_TYPE (rela->r_info))
+       {
+       case R_X86_64_DTPMOD64:
+         ret->r_addend = tls->modid;
+         break;
+       case R_X86_64_DTPOFF64:
+         ret->r_addend = value + rela->r_addend;
+         break;
+       case R_X86_64_TPOFF64:
+         ret->r_addend = value + rela->r_addend - tls->offset;
+         break;
+       }
+      break;
+
+    default:
+      error (0, 0, "%s: Unknown X86-64 relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+x86_64_rel_to_rela (DSO *dso, GElf_Rel *rel, GElf_Rela *rela)
+{
+  error (0, 0, "%s: X86-64 doesn't support REL relocs", dso->filename);
+  return 1;
+}
+
+static int
+x86_64_need_rel_to_rela (DSO *dso, int first, int last)
+{
+  return 0;
+}
+
+static int
+x86_64_arch_prelink (struct prelink_info *info)
+{
+  DSO *dso;
+  int i;
+
+  dso = info->dso;
+  if (dso->info[DT_PLTGOT])
+    {
+      /* Write address of .plt + 0x16 into got[1].
+        .plt + 0x16 is what got[3] contains unless prelinking.  */
+      int sec = addr_to_sec (dso, dso->info[DT_PLTGOT]);
+      Elf64_Addr data;
+
+      if (sec == -1)
+       return 1;
+
+      for (i = 1; i < dso->ehdr.e_shnum; i++)
+       if (dso->shdr[i].sh_type == SHT_PROGBITS
+           && ! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                dso->shdr[i].sh_name),
+                        ".plt"))
+       break;
+
+      assert (i < dso->ehdr.e_shnum);
+      data = dso->shdr[i].sh_addr + 0x16;
+      write_le64 (dso, dso->info[DT_PLTGOT] + 8, data);
+    }
+
+  return 0;
+}
+
+static int
+x86_64_arch_undo_prelink (DSO *dso)
+{
+  int i;
+
+  if (dso->info[DT_PLTGOT])
+    {
+      /* Clear got[1] if it contains address of .plt + 0x16.  */
+      int sec = addr_to_sec (dso, dso->info[DT_PLTGOT]);
+      Elf64_Addr data;
+
+      if (sec == -1)
+       return 1;
+
+      for (i = 1; i < dso->ehdr.e_shnum; i++)
+       if (dso->shdr[i].sh_type == SHT_PROGBITS
+           && ! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                dso->shdr[i].sh_name),
+                        ".plt"))
+       break;
+
+      if (i == dso->ehdr.e_shnum)
+       return 0;
+      data = read_ule64 (dso, dso->info[DT_PLTGOT] + 8);
+      if (data == dso->shdr[i].sh_addr + 0x16)
+       write_le64 (dso, dso->info[DT_PLTGOT] + 8, 0);
+    }
+
+  return 0;
+}
+
+static int
+x86_64_undo_prelink_rela (DSO *dso, GElf_Rela *rela, GElf_Addr relaaddr)
+{
+  int sec;
+  const char *name;
+
+  switch (GELF_R_TYPE (rela->r_info))
+    {
+    case R_X86_64_NONE:
+    case R_X86_64_RELATIVE:
+    case R_X86_64_IRELATIVE:
+      break;
+    case R_X86_64_JUMP_SLOT:
+      sec = addr_to_sec (dso, rela->r_offset);
+      name = strptr (dso, dso->ehdr.e_shstrndx, dso->shdr[sec].sh_name);
+      if (sec == -1 || (strcmp (name, ".got") && strcmp (name, ".got.plt")))
+       {
+         error (0, 0, "%s: R_X86_64_JUMP_SLOT not pointing into .got section",
+                dso->filename);
+         return 1;
+       }
+      else
+       {
+         Elf64_Addr data = read_ule64 (dso, dso->shdr[sec].sh_addr + 8);
+
+         assert (rela->r_offset >= dso->shdr[sec].sh_addr + 24);
+         assert (((rela->r_offset - dso->shdr[sec].sh_addr) & 7) == 0);
+         write_le64 (dso, rela->r_offset,
+                     2 * (rela->r_offset - dso->shdr[sec].sh_addr - 24)
+                     + data);
+       }
+      break;
+    case R_X86_64_GLOB_DAT:
+    case R_X86_64_64:
+    case R_X86_64_DTPMOD64:
+    case R_X86_64_DTPOFF64:
+    case R_X86_64_TPOFF64:
+      write_le64 (dso, rela->r_offset, 0);
+      break;
+    case R_X86_64_32:
+    case R_X86_64_PC32:
+      write_le32 (dso, rela->r_offset, 0);
+      break;
+    case R_X86_64_COPY:
+      if (dso->ehdr.e_type == ET_EXEC)
+       /* COPY relocs are handled specially in generic code.  */
+       return 0;
+      error (0, 0, "%s: R_X86_64_COPY reloc in shared library?", dso->filename);
+      return 1;
+    default:
+      error (0, 0, "%s: Unknown X86-64 relocation type %d", dso->filename,
+            (int) GELF_R_TYPE (rela->r_info));
+      return 1;
+    }
+  return 0;
+}
+
+static int
+x86_64_reloc_size (int reloc_type)
+{
+  switch (reloc_type)
+    {
+    case R_X86_64_GLOB_DAT:
+    case R_X86_64_JUMP_SLOT:
+    case R_X86_64_64:
+    case R_X86_64_IRELATIVE:
+      return 8;
+    default:
+      return 4;
+    }
+}
+
+static int
+x86_64_reloc_class (int reloc_type)
+{
+  switch (reloc_type)
+    {
+    case R_X86_64_COPY: return RTYPE_CLASS_COPY;
+    case R_X86_64_JUMP_SLOT: return RTYPE_CLASS_PLT;
+    case R_X86_64_DTPMOD64:
+    case R_X86_64_DTPOFF64:
+    case R_X86_64_TPOFF64:
+      return RTYPE_CLASS_TLS;
+    default: return RTYPE_CLASS_VALID;
+    }
+}
+
+PL_ARCH = {
+  .name = "x86-64",
+  .class = ELFCLASS64,
+  .machine = EM_X86_64,
+  .alternate_machine = { EM_NONE },
+  .R_JMP_SLOT = R_X86_64_JUMP_SLOT,
+  .R_COPY = R_X86_64_COPY,
+  .R_RELATIVE = R_X86_64_RELATIVE,
+  .rtype_class_valid = RTYPE_CLASS_VALID,
+  .dynamic_linker = "/lib64/ld-linux-x86-64.so.2",
+  .adjust_dyn = x86_64_adjust_dyn,
+  .adjust_rel = x86_64_adjust_rel,
+  .adjust_rela = x86_64_adjust_rela,
+  .prelink_rel = x86_64_prelink_rel,
+  .prelink_rela = x86_64_prelink_rela,
+  .prelink_conflict_rel = x86_64_prelink_conflict_rel,
+  .prelink_conflict_rela = x86_64_prelink_conflict_rela,
+  .apply_conflict_rela = x86_64_apply_conflict_rela,
+  .apply_rel = x86_64_apply_rel,
+  .apply_rela = x86_64_apply_rela,
+  .rel_to_rela = x86_64_rel_to_rela,
+  .need_rel_to_rela = x86_64_need_rel_to_rela,
+  .reloc_size = x86_64_reloc_size,
+  .reloc_class = x86_64_reloc_class,
+  .max_reloc_size = 8,
+  .arch_prelink = x86_64_arch_prelink,
+  .arch_undo_prelink = x86_64_arch_undo_prelink,
+  .undo_prelink_rela = x86_64_undo_prelink_rela,
+  /* Although TASK_UNMAPPED_BASE is 0x2a95555555, we leave some
+     area so that mmap of /etc/ld.so.cache and ld.so's malloc
+     does not take some library's VA slot.
+     Also, if this guard area isn't too small, typically
+     even dlopened libraries will get the slots they desire.  */
+  .mmap_base = 0x3000000000LL,
+  .mmap_end =  0x4000000000LL,
+  .max_page_size = 0x200000,
+  .page_size = 0x1000
+};
diff --git a/src/cache.c b/src/cache.c
new file mode 100644 (file)
index 0000000..b677e22
--- /dev/null
@@ -0,0 +1,856 @@
+/* Copyright (C) 2001, 2002, 2003, 2004, 2006 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/wait.h>
+#include <sys/mman.h>
+#include "prelinktab.h"
+
+htab_t prelink_devino_htab, prelink_filename_htab;
+
+int prelink_entry_count;
+
+static hashval_t
+devino_hash (const void *p)
+{
+  struct prelink_entry *e = (struct prelink_entry *)p;
+
+  return (e->dev << 2) ^ (e->ino) ^ (e->ino >> 20);
+}
+
+static int
+devino_eq (const void *p, const void *q)
+{
+  struct prelink_entry *e = (struct prelink_entry *)p;
+  struct prelink_entry *f = (struct prelink_entry *)q;
+
+  return e->ino == f->ino && e->dev == f->dev;
+}
+
+static hashval_t
+filename_hash (const void *p)
+{
+  struct prelink_entry *e = (struct prelink_entry *)p;
+  const unsigned char *s = (const unsigned char *)e->filename;
+  hashval_t h = 0;
+  unsigned char c;
+  size_t len = 0;
+
+  while ((c = *s++) != '\0')
+    {
+      h += c + (c << 17);
+      h ^= h >> 2;
+      ++len;
+    }
+  return h + len + (len << 17);
+}
+
+static int
+filename_eq (const void *p, const void *q)
+{
+  struct prelink_entry *e = (struct prelink_entry *)p;
+  struct prelink_entry *f = (struct prelink_entry *)q;
+
+  return strcmp (e->filename, f->filename) == 0;
+}
+
+int
+prelink_init_cache (void)
+{
+  prelink_devino_htab = htab_try_create (100, devino_hash, devino_eq, NULL);
+  prelink_filename_htab = htab_try_create (100, filename_hash, filename_eq,
+                                          NULL);
+  if (prelink_devino_htab == NULL || prelink_filename_htab == NULL)
+    error (EXIT_FAILURE, ENOMEM, "Could not create hash table");
+  return 0;
+}
+
+struct prelink_entry *
+prelink_find_entry (const char *filename, const struct stat64 *stp,
+                   int insert)
+{
+  struct prelink_entry e, *ent = NULL;
+  void **filename_slot, *dummy = NULL;
+  void **devino_slot = NULL;
+  struct stat64 st;
+  char *canon_filename = NULL;
+
+  e.filename = filename;
+  filename_slot = htab_find_slot (prelink_filename_htab, &e,
+                                 insert ? INSERT : NO_INSERT);
+  if (filename_slot == NULL)
+    {
+      if (insert)
+       goto error_out;
+      filename_slot = &dummy;
+    }
+
+  if (*filename_slot != NULL)
+    return (struct prelink_entry *) *filename_slot;
+
+  if (! stp)
+    {
+      canon_filename = prelink_canonicalize (filename, &st);
+      if (canon_filename == NULL && stat64 (filename, &st) < 0)
+       {
+         error (0, errno, "Could not stat %s", filename);
+         if (insert)
+           {
+             *filename_slot = &dummy;
+             htab_clear_slot (prelink_filename_htab, filename_slot);
+           }
+         return NULL;
+       }
+      stp = &st;
+    }
+
+  e.dev = stp->st_dev;
+  e.ino = stp->st_ino;
+  devino_slot = htab_find_slot (prelink_devino_htab, &e,
+                               insert ? INSERT : NO_INSERT);
+  if (devino_slot == NULL)
+    {
+      if (insert)
+       goto error_out;
+      free (canon_filename);
+      return NULL;
+    }
+
+  if (*devino_slot != NULL)
+    {
+      ent = (struct prelink_entry *) *devino_slot;
+      if (canon_filename == NULL)
+       canon_filename = prelink_canonicalize (filename, NULL);
+      if (canon_filename == NULL)
+       {
+         error (0, 0, "Could not canonicalize filename %s", filename);
+         goto error_out2;
+       }
+
+      if (strcmp (canon_filename, ent->canon_filename) != 0)
+       {
+         struct prelink_link *hardlink;
+
+         hardlink = (struct prelink_link *)
+                    malloc (sizeof (struct prelink_link));
+         if (hardlink == NULL)
+           {
+             error (0, ENOMEM, "Could not record hardlink %s to %s",
+                    canon_filename, ent->canon_filename);
+             goto error_out2;
+           }
+
+         hardlink->canon_filename = canon_filename;
+         hardlink->next = ent->hardlink;
+         ent->hardlink = hardlink;
+       }
+      else
+       free (canon_filename);
+      return ent;
+    }
+
+  if (! insert)
+    {
+      if (canon_filename != NULL)
+       free (canon_filename);
+      return NULL;
+    }
+
+  ent = (struct prelink_entry *) calloc (sizeof (struct prelink_entry), 1);
+  if (ent == NULL)
+    goto error_out;
+
+  ent->filename = strdup (filename);
+  if (ent->filename == NULL)
+    goto error_out;
+
+  if (canon_filename != NULL)
+    ent->canon_filename = canon_filename;
+  else
+    ent->canon_filename = prelink_canonicalize (filename, NULL);
+  if (ent->canon_filename == NULL)
+    {
+      error (0, 0, "Could not canonicalize filename %s", filename);
+      free ((char *) ent->filename);
+      free (ent);
+      goto error_out2;
+    }
+
+  ent->dev = stp->st_dev;
+  ent->ino = stp->st_ino;
+  ent->ctime = stp->st_ctime;
+  ent->mtime = stp->st_mtime;
+
+  *filename_slot = ent;
+  *devino_slot = ent;
+  ++prelink_entry_count;
+  return ent;
+
+error_out:
+  free (ent);
+  error (0, ENOMEM, "Could not insert %s into hash table", filename);
+error_out2:
+  if (insert)
+    {
+      if (filename_slot != NULL)
+       {
+         assert (*filename_slot == NULL);
+         *filename_slot = &dummy;
+         htab_clear_slot (prelink_filename_htab, filename_slot);
+       }
+      if (devino_slot != NULL && *devino_slot == NULL)
+       {
+         *devino_slot = &dummy;
+         htab_clear_slot (prelink_devino_htab, devino_slot);
+       }
+    }
+  free (canon_filename);
+  return NULL;
+}
+
+static struct prelink_entry *
+prelink_load_entry (const char *filename)
+{
+  struct prelink_entry e, *ent = NULL;
+  void **filename_slot, *dummy = NULL;
+  void **devino_slot = &dummy;
+  struct stat64 st;
+  uint32_t ctime = 0, mtime = 0;
+  char *canon_filename = NULL;
+
+  e.filename = filename;
+  filename_slot = htab_find_slot (prelink_filename_htab, &e, INSERT);
+  if (filename_slot == NULL)
+    goto error_out;
+
+  if (*filename_slot != NULL)
+    return (struct prelink_entry *) *filename_slot;
+
+  canon_filename = prelink_canonicalize (filename, &st);
+  if (canon_filename == NULL)
+    goto error_out2;
+  if (strcmp (canon_filename, filename) != 0)
+    {
+      *filename_slot = &dummy;
+      htab_clear_slot (prelink_filename_htab, filename_slot);
+
+      e.filename = canon_filename;
+      filename_slot = htab_find_slot (prelink_filename_htab, &e, INSERT);
+      if (filename_slot == NULL)
+       goto error_out;
+
+      if (*filename_slot != NULL)
+       {
+         free (canon_filename);
+         return (struct prelink_entry *) *filename_slot;
+       }
+    }
+
+  if (! S_ISREG (st.st_mode))
+    {
+      free (canon_filename);
+      *filename_slot = &dummy;
+      htab_clear_slot (prelink_filename_htab, filename_slot);
+      return NULL;
+    }
+  else
+    {
+      e.dev = st.st_dev;
+      e.ino = st.st_ino;
+      ctime = (uint32_t) st.st_ctime;
+      mtime = (uint32_t) st.st_mtime;
+      devino_slot = htab_find_slot (prelink_devino_htab, &e, INSERT);
+      if (devino_slot == NULL)
+       goto error_out;
+    }
+
+  if (*devino_slot != NULL)
+    {
+      free (canon_filename);
+      *filename_slot = &dummy;
+      htab_clear_slot (prelink_filename_htab, filename_slot);
+      return (struct prelink_entry *) *devino_slot;
+    }
+
+  ent = (struct prelink_entry *) calloc (sizeof (struct prelink_entry), 1);
+  if (ent == NULL)
+    goto error_out;
+
+  ent->filename = strdup (filename);
+  if (ent->filename == NULL)
+    goto error_out;
+
+  ent->canon_filename = canon_filename;
+  ent->dev = e.dev;
+  ent->ino = e.ino;
+  ent->ctime = ctime;
+  ent->mtime = mtime;
+  *filename_slot = ent;
+  *devino_slot = ent;
+  ++prelink_entry_count;
+  return ent;
+
+error_out:
+  free (ent);
+  error (0, ENOMEM, "Could not insert %s into hash table", filename);
+error_out2:
+  if (filename_slot != NULL)
+    {
+      *filename_slot = &dummy;
+      htab_clear_slot (prelink_filename_htab, filename_slot);
+    }
+  if (devino_slot != NULL && devino_slot != &dummy)
+    {
+      *devino_slot = &dummy;
+      htab_clear_slot (prelink_devino_htab, devino_slot);
+    }
+  free (canon_filename);
+  return NULL;
+}
+
+static int
+deps_cmp (const void *A, const void *B)
+{
+  struct prelink_entry *a = * (struct prelink_entry **) A;
+  struct prelink_entry *b = * (struct prelink_entry **) B;
+
+  if (a == NULL)
+    return (b != NULL);
+  if (a != NULL && b == NULL)
+    return -1;
+
+  if (a->type == ET_NONE && b->type != ET_NONE)
+    return 1;
+  if (a->type != ET_NONE && b->type == ET_NONE)
+    return -1;
+
+  /* Libraries with fewest dependencies first.  */
+  if (a->ndepends < b->ndepends)
+    return -1;
+  if (a->ndepends > b->ndepends)
+    return 1;
+  return 0;
+}
+
+int
+prelink_load_cache (void)
+{
+  int fd, i, j;
+  struct stat64 st;
+  struct prelink_cache *cache;
+  struct prelink_entry **ents;
+  size_t cache_size;
+  uint32_t string_start, *dep;
+
+  fd = open (prelink_cache, O_RDONLY);
+  if (fd < 0)
+    return 0; /* The cache does not exist yet.  */
+
+  if (fstat64 (fd, &st) < 0
+      || st.st_size == 0)
+    {
+      close (fd);
+      return 0;
+    }
+
+  cache = mmap (0, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
+  if (cache == MAP_FAILED)
+    error (EXIT_FAILURE, errno, "mmap of prelink cache file failed.");
+  cache_size = st.st_size;
+  if (memcmp (cache->magic, PRELINK_CACHE_MAGIC,
+             sizeof (PRELINK_CACHE_MAGIC) - 1))
+    {
+      if (memcmp (cache->magic, PRELINK_CACHE_NAME,
+                 sizeof (PRELINK_CACHE_NAME) - 1))
+       error (EXIT_FAILURE, 0, "%s: is not prelink cache file",
+              prelink_cache);
+      munmap (cache, cache_size);
+      return 0;
+    }
+  dep = (uint32_t *) & cache->entry[cache->nlibs];
+  string_start = ((long) dep) - ((long) cache)
+                + cache->ndeps * sizeof (uint32_t);
+  ents = (struct prelink_entry **)
+        alloca (cache->nlibs * sizeof (struct prelink_entry *));
+  memset (ents, 0, cache->nlibs * sizeof (struct prelink_entry *));
+  for (i = 0; i < cache->nlibs; i++)
+    {
+      /* Sanity checks.  */
+      if (cache->entry[i].filename < string_start
+         || cache->entry[i].filename >= string_start + cache->len_strings
+         || cache->entry[i].depends >= cache->ndeps)
+       error (EXIT_FAILURE, 0, "%s: bogus prelink cache file",
+              prelink_cache);
+
+      ents[i] = prelink_load_entry (((char *) cache)
+                                   + cache->entry[i].filename);
+    }
+
+  for (i = 0; i < cache->nlibs; i++)
+    {
+      if (ents[i] == NULL)
+       continue;
+
+      if (ents[i]->type != ET_NONE)
+       continue;
+
+      ents[i]->checksum = cache->entry[i].checksum;
+      ents[i]->base = cache->entry[i].base;
+      ents[i]->end = cache->entry[i].end;
+      ents[i]->type = (ents[i]->base == 0 && ents[i]->end == 0)
+                     ? ET_CACHE_EXEC : ET_CACHE_DYN;
+      ents[i]->flags = cache->entry[i].flags;
+
+      if (ents[i]->flags == PCF_UNPRELINKABLE)
+       ents[i]->type = (quick || print_cache) ? ET_UNPRELINKABLE : ET_NONE;
+
+      /* If mtime is equal to ctime, assume the filesystem does not store
+        ctime.  */
+      if (quick
+         && ((ents[i]->ctime == ents[i]->mtime
+              && ents[i]->type != ET_UNPRELINKABLE)
+             || ents[i]->ctime != cache->entry[i].ctime
+             || ents[i]->mtime != cache->entry[i].mtime))
+       ents[i]->type = ET_NONE;
+
+      for (j = cache->entry[i].depends; dep[j] != i; ++j)
+       if (dep[j] >= cache->nlibs)
+         error (EXIT_FAILURE, 0, "%s: bogus prelink cache file",
+                prelink_cache);
+       else if (ents[dep[j]] == NULL)
+         ents[i]->type = ET_NONE;
+
+      if (ents[i]->type == ET_NONE)
+       continue;
+
+      ents[i]->ndepends = j - cache->entry[i].depends;
+      if (ents[i]->ndepends)
+       {
+         ents[i]->depends =
+           (struct prelink_entry **)
+           malloc (ents[i]->ndepends * sizeof (struct prelink_entry *));
+         if (ents[i]->depends == NULL)
+           error (EXIT_FAILURE, ENOMEM, "Cannot read cache file %s",
+                  prelink_cache);
+
+         for (j = 0; j < ents[i]->ndepends; ++j)
+           ents[i]->depends[j] = ents[dep[cache->entry[i].depends + j]];
+       }
+    }
+
+  if (quick)
+    {
+      qsort (ents, cache->nlibs, sizeof (struct prelink_entry *), deps_cmp);
+      for (i = 0; i < cache->nlibs; ++i)
+       {
+         if (ents[i] == NULL || ents[i]->type == ET_NONE)
+           continue;
+
+         for (j = 0; j < ents[i]->ndepends; ++j)
+           if (ents[i]->depends[j]->type == ET_NONE)
+             {
+               ents[i]->type = ET_NONE;
+               free (ents[i]->depends);
+               ents[i]->depends = NULL;
+               ents[i]->ndepends = 0;
+               break;
+             }
+       }
+    }
+
+  munmap (cache, cache_size);
+  close (fd);
+  return 0;
+}
+
+static int
+prelink_print_cache_size (void **p, void *info)
+{
+  struct prelink_entry *e = * (struct prelink_entry **) p;
+  int *psize = (int *) info;
+
+  if ((e->base & 0xffffffff) != e->base
+      || (e->end & 0xffffffff) != e->end)
+    {
+      *psize = 16;
+      return 0;
+    }
+
+  return 1;
+}
+
+static int
+prelink_print_cache_object (void **p, void *info)
+{
+  struct prelink_entry *e = * (struct prelink_entry **) p;
+  int *psize = (int *) info, i;
+
+  if (e->type == ET_UNPRELINKABLE)
+    {
+      printf ("%s (not prelinkable)%s\n", e->filename, e->ndepends ? ":" : "");
+      for (i = 0; i < e->ndepends; i++)
+       if (e->depends[i]->type == ET_UNPRELINKABLE)
+         printf ("    %s (not prelinkable)\n", e->depends[i]->filename);
+       else
+         printf ("    %s [0x%08x]\n", e->depends[i]->filename,
+                 e->depends[i]->checksum);
+      return 1;
+    }
+
+  if (e->type == ET_CACHE_DYN)
+    printf ("%s [0x%08x] 0x%0*llx-0x%0*llx%s\n", e->filename, e->checksum,
+           *psize, (long long) e->base, *psize, (long long) e->end,
+           e->ndepends ? ":" : "");
+  else
+    printf ("%s%s\n", e->filename, e->ndepends ? ":" : "");
+  for (i = 0; i < e->ndepends; i++)
+    printf ("    %s [0x%08x]\n", e->depends[i]->filename,
+           e->depends[i]->checksum);
+  return 1;
+}
+
+int
+prelink_print_cache (void)
+{
+  int size = 8;
+
+  printf ("%d objects found in prelink cache `%s'\n", prelink_entry_count,
+         prelink_cache);
+
+  htab_traverse (prelink_filename_htab, prelink_print_cache_size, &size);
+  htab_traverse (prelink_filename_htab, prelink_print_cache_object, &size);
+  return 0;
+}
+
+struct collect_ents
+{
+  struct prelink_entry **ents;
+  size_t len_strings;
+  int nents;
+  int ndeps;
+};
+
+static int
+prelink_save_cache_check (struct prelink_entry *ent)
+{
+  int i;
+
+  for (i = 0; i < ent->ndepends; ++i)
+    switch (ent->depends[i]->type)
+      {
+      case ET_DYN:
+       if (ent->depends[i]->done < 2
+           || (quick && (ent->depends[i]->flags & PCF_PRELINKED)))
+         return 1;
+       break;
+      case ET_CACHE_DYN:
+       break;
+      case ET_UNPRELINKABLE:
+       if (ent->type != ET_UNPRELINKABLE)
+         return 1;
+       break;
+      default:
+       return 1;
+      }
+
+  return 0;
+}
+
+static int
+find_ents (void **p, void *info)
+{
+  struct collect_ents *l = (struct collect_ents *) info;
+  struct prelink_entry *e = * (struct prelink_entry **) p;
+
+  if (((e->type == ET_DYN || e->type == ET_EXEC) && e->done == 2)
+      || ((e->type == ET_CACHE_DYN || e->type == ET_CACHE_EXEC
+          || e->type == ET_UNPRELINKABLE)
+         && ! prelink_save_cache_check (e)))
+    {
+      l->ents[l->nents++] = e;
+      l->ndeps += e->ndepends + 1;
+      l->len_strings += strlen (e->canon_filename) + 1;
+    }
+  return 1;
+}
+
+int
+prelink_save_cache (int do_warn)
+{
+  struct prelink_cache cache;
+  struct collect_ents l;
+  struct prelink_cache_entry *data;
+  uint32_t *deps, ndeps = 0, i, j, k;
+  char *strings;
+  int fd, len;
+  struct prelink_entry *ents_array[prelink_entry_count];
+
+  memset (&cache, 0, sizeof (cache));
+  memcpy ((char *) & cache, PRELINK_CACHE_MAGIC,
+         sizeof (PRELINK_CACHE_MAGIC) - 1);
+  l.ents = ents_array;
+  l.nents = 0;
+  l.ndeps = 0;
+  l.len_strings = 0;
+  htab_traverse (prelink_filename_htab, find_ents, &l);
+  cache.nlibs = l.nents;
+  cache.ndeps = l.ndeps;
+  cache.len_strings = l.len_strings;
+
+  len = cache.nlibs * sizeof (struct prelink_cache_entry)
+       + cache.ndeps * sizeof (uint32_t) + cache.len_strings;
+  char data_buf[len];
+  data = (struct prelink_cache_entry *) data_buf;
+  deps = (uint32_t *) & data[cache.nlibs];
+  strings = (char *) & deps[cache.ndeps];
+
+  for (i = 0; i < l.nents; ++i)
+    {
+      data[i].filename = (strings - (char *) data) + sizeof (cache);
+      strings = stpcpy (strings, l.ents[i]->canon_filename) + 1;
+      data[i].checksum = l.ents[i]->checksum;
+      data[i].flags = l.ents[i]->flags & ~PCF_PRELINKED;
+      data[i].ctime = l.ents[i]->ctime;
+      data[i].mtime = l.ents[i]->mtime;
+      if (l.ents[i]->type == ET_EXEC || l.ents[i]->type == ET_CACHE_EXEC)
+       {
+         data[i].base = 0;
+         data[i].end = 0;
+       }
+      else if (l.ents[i]->type == ET_UNPRELINKABLE)
+       {
+         data[i].base = 0;
+         data[i].end = 0;
+         data[i].checksum = 0;
+         data[i].flags = PCF_UNPRELINKABLE;
+       }
+      else
+       {
+         data[i].base = l.ents[i]->base;
+         data[i].end = l.ents[i]->end;
+       }
+    }
+
+  for (i = 0; i < cache.nlibs; i++)
+    {
+      data[i].depends = ndeps;
+      for (j = 0; j < l.ents[i]->ndepends; j++)
+       {
+         for (k = 0; k < cache.nlibs; k++)
+           if (l.ents[k] == l.ents[i]->depends[j])
+             break;
+         if (k == cache.nlibs)
+           abort ();
+         deps[ndeps++] = k;
+       }
+      deps[ndeps++] = i;
+    }
+
+  size_t prelink_cache_len = strlen (prelink_cache);
+  char prelink_cache_tmp [prelink_cache_len + sizeof (".XXXXXX")];
+  memcpy (mempcpy (prelink_cache_tmp, prelink_cache, prelink_cache_len),
+         ".XXXXXX", sizeof (".XXXXXX"));
+  fd = mkstemp (prelink_cache_tmp);
+  if (fd < 0)
+    {
+      error (0, errno, "Could not write prelink cache");
+      return 1;
+    }
+
+  if (write (fd, &cache, sizeof (cache)) != sizeof (cache)
+      || write (fd, data, len) != len
+      || fchmod (fd, 0644)
+      || close (fd)
+      || rename (prelink_cache_tmp, prelink_cache))
+    {
+      error (0, errno, "Could not write prelink cache");
+      unlink (prelink_cache_tmp);
+      return 1;
+    }
+  return 0;
+}
+
+#ifndef NDEBUG
+static void
+prelink_entry_dumpfn (FILE *f, const void *ptr)
+{
+  struct prelink_entry *e = (struct prelink_entry *) ptr;
+  struct prelink_link *l;
+  int i;
+
+  fprintf (f, "%s|%s|%s|%x|%x|%llx|%llx|%llx|%llx|%llx|%d|%d|%d|%d|%d|%d|%d|",
+          e->filename,
+          strcmp (e->canon_filename, e->filename) ? e->canon_filename : "",
+          e->soname && strcmp (e->soname, e->filename) ? e->soname : "",
+          e->timestamp, e->checksum,
+          (long long) e->base, (long long) e->end, (long long) e->pltgot,
+          (long long) e->dev, (long long) e->ino,
+          e->type, e->done, e->ndepends, e->refs, e->flags,
+          e->prev ? e->prev->u.tmp : -1, e->next ? e->next->u.tmp : -1);
+  for (i = 0; i < e->ndepends; ++i)
+    fprintf (f, "%d-", e->depends [i]->u.tmp);
+  fputc ('|', f);
+  for (l = e->hardlink; l; l = l->next)
+    fprintf (f, "%s|", l->canon_filename);
+  fputs ("\n", f);
+}
+
+void
+prelink_entry_dump (htab_t htab, const char *filename)
+{
+  size_t i;
+
+  for (i = 0; i < htab->size; ++i)
+    if (htab->entries [i] && htab->entries [i] != (void *) 1)
+      ((struct prelink_entry *) htab->entries [i])->u.tmp = i;
+  htab_dump (htab, filename, prelink_entry_dumpfn);
+}
+
+static char *restore_line;
+static size_t restore_size;
+
+static void *
+prelink_entry_restorefn (FILE *f)
+{
+  struct prelink_entry *e;
+  struct prelink_link **plink;
+  char *p, *q, *s;
+  long long ll[5];
+  int ii[5];
+  int i;
+
+  if (getline (&restore_line, &restore_size, f) < 0)
+    abort ();
+  e = (struct prelink_entry *) calloc (1, sizeof (struct prelink_entry));
+  if (e == NULL)
+    abort ();
+  p = restore_line;
+  q = strchr (p, '|');
+  s = malloc (q - p + 1);
+  memcpy (s, p, q - p);
+  s [q - p] = '\0';
+  e->filename = s;
+  ++q;
+  p = q;
+  if (*p == '|')
+    e->canon_filename = strdup (e->filename);
+  else
+    {
+      q = strchr (p, '|');
+      s = malloc (q - p + 1);
+      memcpy (s, p, q - p);
+      s [q - p] = '\0';
+      e->canon_filename = s;
+    }
+  ++q;
+  p = q;
+  if (*p == '|')
+    e->soname = strdup (e->filename);
+  else
+    {
+      q = strchr (p, '|');
+      s = malloc (q - p + 1);
+      memcpy (s, p, q - p);
+      s [q - p] = '\0';
+      e->soname = s;
+    }
+  p = q + 1;
+  if (sscanf (p, "%x|%x|%llx|%llx|%llx|%llx|%llx|%d|%d|%d|%d|%d|%d|%d|%n",
+             ii, ii + 1, ll, ll + 1, ll + 2, ll + 3, ll + 4,
+             &e->type, &e->done, &e->ndepends, &e->refs, &e->flags,
+             ii + 2, ii + 3, ii + 4) < 14)
+    abort ();
+  e->timestamp = ii[0];
+  e->checksum = ii[1];
+  e->base = ll[0];
+  e->end = ll[1];
+  e->pltgot = ll[2];
+  e->dev = ll[3];
+  e->ino = ll[4];
+  e->prev = (void *) (long) ii[2];
+  e->next = (void *) (long) ii[3];
+  e->depends = (struct prelink_entry **)
+              malloc (e->ndepends * sizeof (struct prelink_entry *));
+  p += ii[4];
+  for (i = 0; i < e->ndepends; ++i)
+    {
+      e->depends [i] = (void *) strtol (p, &q, 0);
+      if (p == q || *q != '-')
+       abort ();
+      p = q + 1;
+    }
+  if (*p++ != '|')
+    abort ();
+  plink = &e->hardlink;
+  while (*p != '\n')
+    {
+      struct prelink_link *link = (struct prelink_link *)
+                                 malloc (sizeof (struct prelink_link));
+      q = strchr (p, '|');
+      *plink = link;
+      plink = &link->next;
+      s = malloc (q - p + 1);
+      memcpy (s, p, q - p);
+      s [q - p] = '\0';
+      e->soname = s;
+      link->canon_filename = s;
+      p = q + 1;
+    }
+  *plink = NULL;
+  ++prelink_entry_count;
+  return e;
+}
+
+void
+prelink_entry_restore (htab_t htab, const char *filename)
+{
+  size_t i, j;
+  struct prelink_entry *e;
+
+  prelink_entry_count = 0;
+  htab_restore (htab, filename, prelink_entry_restorefn);
+  free (restore_line);
+  for (i = 0; i < htab->size; ++i)
+    if (htab->entries [i] && htab->entries [i] != (void *) 1)
+      {
+       e = (struct prelink_entry *) htab->entries [i];
+       if (e->prev == (void *) -1)
+         e->prev = NULL;
+       else
+         e->prev = (struct prelink_entry *)
+                   htab->entries [(long) e->prev];
+       if (e->next == (void *) -1)
+         e->next = NULL;
+       else
+         e->next = (struct prelink_entry *)
+                   htab->entries [(long) e->next];
+       for (j = 0; j < e->ndepends; ++j)
+         {
+           e->depends [j] = (struct prelink_entry *)
+                            htab->entries [(long) e->depends [j]];
+         }
+      }
+}
+#endif
diff --git a/src/canonicalize.c b/src/canonicalize.c
new file mode 100644 (file)
index 0000000..79df44e
--- /dev/null
@@ -0,0 +1,319 @@
+/* Return the canonical absolute name of a given file.
+   Copyright (C) 1996-2002, 2004, 2005, 2006 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <limits.h>
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <stddef.h>
+
+#include "hashtab.h"
+
+htab_t prelink_dirname_htab;
+
+struct dirname_entry
+{
+  const char *dirname;
+  size_t dirname_len;
+  const char *canon_dirname;
+  size_t canon_dirname_len;
+};
+
+static hashval_t
+dirname_hash (const void *p)
+{
+  struct dirname_entry *e = (struct dirname_entry *)p;
+  const unsigned char *s = (const unsigned char *)e->dirname;
+  hashval_t h = 0;
+  unsigned char c;
+  size_t len = e->dirname_len;
+
+  while (len--)
+    {
+      c = *s++;
+      h += c + (c << 17);
+      h ^= h >> 2;
+    }
+  return h + e->dirname_len + (e->dirname_len << 17);
+}
+
+static int
+dirname_eq (const void *p, const void *q)
+{
+  struct dirname_entry *e = (struct dirname_entry *)p;
+  struct dirname_entry *f = (struct dirname_entry *)q;
+
+  return (e->dirname_len == f->dirname_len
+         && memcmp (e->dirname, f->dirname, e->dirname_len) == 0);
+}
+
+/* Return the canonical absolute name of file NAME.  A canonical name
+   does not contain any `.', `..' components nor any repeated path
+   separators ('/') or symlinks.  All path components must exist.
+   The result is malloc'd.  */
+
+static char *
+canon_filename (const char *name, int nested, struct stat64 *stp)
+{
+  char *rpath, *dest, *extra_buf = NULL;
+  const char *start, *end, *rpath_limit;
+  long int path_max;
+  int num_links = 0;
+  int stp_initialized = 0;
+
+  if (name == NULL)
+    {
+      errno = EINVAL;
+      return NULL;
+    }
+
+  if (name[0] == '\0')
+    {
+      errno = ENOENT;
+      return NULL;
+    }
+
+#ifdef PATH_MAX
+  path_max = PATH_MAX;
+#else
+  path_max = pathconf (name, _PC_PATH_MAX);
+  if (path_max <= 0)
+    path_max = 1024;
+#endif
+
+  rpath = malloc (path_max);
+  if (rpath == NULL)
+    return NULL;
+  rpath_limit = rpath + path_max;
+
+  if (name[0] != '/')
+    {
+      if (!getcwd (rpath, path_max))
+       {
+         rpath[0] = '\0';
+         goto error;
+       }
+      dest = strchr (rpath, '\0');
+    }
+  else
+    {
+      rpath[0] = '/';
+      dest = rpath + 1;
+
+      if (!nested)
+       {
+         if (prelink_dirname_htab == NULL)
+           prelink_dirname_htab = htab_try_create (100, dirname_hash,
+                                                   dirname_eq, NULL);
+         if (prelink_dirname_htab == NULL)
+           nested = 1;
+       }
+      if (!nested)
+       {
+         struct dirname_entry e;
+         void **dirname_slot;
+
+         end = strrchr (name, '/');
+
+         e.dirname = name;
+         e.dirname_len = end - name;
+         dirname_slot = htab_find_slot (prelink_dirname_htab, &e, INSERT);
+         if (*dirname_slot == NULL)
+           {
+             struct dirname_entry *ep = malloc (sizeof (struct dirname_entry)
+                                                + e.dirname_len + 1);
+             if (ep != NULL)
+               {
+                 char *dirname = (char *) (ep + 1);
+                 struct stat64 st;
+
+                 ep->dirname = (const char *) dirname;
+                 ep->dirname_len = e.dirname_len;
+                 memcpy (dirname, name, ep->dirname_len);
+                 dirname[ep->dirname_len] = '\0';
+                 ep->canon_dirname = canon_filename (ep->dirname, 1, &st);
+                 if (ep->canon_dirname == NULL || !S_ISDIR (st.st_mode))
+                   free (ep);
+                 else
+                   {
+                     ep->canon_dirname_len = strlen (ep->canon_dirname);
+                     *dirname_slot = ep;
+                   }
+               }
+           }
+
+         if (*dirname_slot != NULL)
+           {
+             struct dirname_entry *ep = *dirname_slot;
+
+             if (rpath + ep->canon_dirname_len + 1 >= rpath_limit)
+               {
+                 size_t new_size;
+                 char *new_rpath;
+
+                 new_size = rpath_limit - rpath;
+                 if (ep->canon_dirname_len + 1 > path_max)
+                   new_size += ep->canon_dirname_len + 1;
+                 else
+                   new_size += path_max;
+                 new_rpath = (char *) realloc (rpath, new_size);
+                 if (new_rpath == NULL)
+                   goto error;
+                 rpath = new_rpath;
+                 rpath_limit = rpath + new_size;
+               }
+             dest = mempcpy (rpath, ep->canon_dirname, ep->canon_dirname_len);
+             *dest = '\0';
+             name = end + 1;
+           }
+       }
+    }
+
+  for (start = end = name; *start; start = end)
+    {
+      int n;
+
+      /* Skip sequence of multiple path-separators.  */
+      while (*start == '/')
+       ++start;
+
+      /* Find end of path component.  */
+      for (end = start; *end && *end != '/'; ++end)
+       /* Nothing.  */;
+
+      if (end - start == 0)
+       break;
+      else if (end - start == 1 && start[0] == '.')
+       /* nothing */;
+      else if (end - start == 2 && start[0] == '.' && start[1] == '.')
+       {
+         /* Back up to previous component, ignore if at root already.  */
+         if (dest > rpath + 1)
+           while ((--dest)[-1] != '/');
+         stp_initialized = 0;
+       }
+      else
+       {
+         size_t new_size;
+
+         if (dest[-1] != '/')
+           *dest++ = '/';
+
+         if (dest + (end - start) >= rpath_limit)
+           {
+             ptrdiff_t dest_offset = dest - rpath;
+             char *new_rpath;
+
+             new_size = rpath_limit - rpath;
+             if (end - start + 1 > path_max)
+               new_size += end - start + 1;
+             else
+               new_size += path_max;
+             new_rpath = (char *) realloc (rpath, new_size);
+             if (new_rpath == NULL)
+               goto error;
+             rpath = new_rpath;
+             rpath_limit = rpath + new_size;
+
+             dest = rpath + dest_offset;
+           }
+
+         dest = mempcpy (dest, start, end - start);
+         *dest = '\0';
+
+         if (lstat64 (rpath, stp) < 0)
+           goto error;
+
+         stp_initialized = 1;
+
+         if (S_ISLNK (stp->st_mode))
+           {
+             char *buf = alloca (path_max);
+             size_t len;
+
+             if (++num_links > MAXSYMLINKS)
+               {
+                 errno = ELOOP;
+                 goto error;
+               }
+
+             n = readlink (rpath, buf, path_max);
+             if (n < 0)
+               goto error;
+             buf[n] = '\0';
+
+             if (!extra_buf)
+               extra_buf = alloca (path_max);
+
+             len = strlen (end);
+             if ((long int) (n + len) >= path_max)
+               {
+                 errno = ENAMETOOLONG;
+                 goto error;
+               }
+
+             /* Careful here, end may be a pointer into extra_buf... */
+             memmove (&extra_buf[n], end, len + 1);
+             name = end = memcpy (extra_buf, buf, n);
+
+             if (buf[0] == '/')
+               dest = rpath + 1;       /* It's an absolute symlink */
+             else
+               /* Back up to previous component, ignore if at root already: */
+               if (dest > rpath + 1)
+                 while ((--dest)[-1] != '/');
+           }
+         else if (!S_ISDIR (stp->st_mode) && *end != '\0')
+           {
+             errno = ENOTDIR;
+             goto error;
+           }
+       }
+    }
+  if (dest > rpath + 1 && dest[-1] == '/')
+    --dest;
+  *dest = '\0';
+
+  if (!stp_initialized && lstat64 (rpath, stp) < 0)
+    goto error;
+
+  if (dest + 1 - rpath <= (rpath_limit - rpath) / 2)
+    {
+      char *new_rpath = realloc (rpath, dest + 1 - rpath);
+
+      if (new_rpath != NULL)
+       return new_rpath;
+    }
+  return rpath;
+
+error:
+  free (rpath);
+  return NULL;
+}
+
+char *
+prelink_canonicalize (const char *name, struct stat64 *stp)
+{
+  struct stat64 st;
+  return canon_filename (name, 0, stp ? stp : &st);
+}
diff --git a/src/checksum.c b/src/checksum.c
new file mode 100644 (file)
index 0000000..20a23a0
--- /dev/null
@@ -0,0 +1,89 @@
+/* Copyright (C) 2001, 2002, 2003 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <endian.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include "prelink.h"
+
+int
+prelink_set_checksum (DSO *dso)
+{
+  extern uint32_t crc32 (uint32_t crc, unsigned char *buf, size_t len);
+  uint32_t crc;
+  int i, cvt;
+
+  if (set_dynamic (dso, DT_CHECKSUM, 0, 1))
+    return 1;
+
+  if (dso->info_DT_GNU_PRELINKED
+      && set_dynamic (dso, DT_GNU_PRELINKED, 0, 1))
+    return 1;
+
+  /* Ensure any pending .mdebug/.dynsym/.dynstr etc. modifications
+     write_dso would do happen before checksumming.  */
+  if (prepare_write_dso (dso))
+    return 1;
+
+  cvt = ! ((__BYTE_ORDER == __LITTLE_ENDIAN
+           && dso->ehdr.e_ident[EI_DATA] == ELFDATA2LSB)
+          || (__BYTE_ORDER == __BIG_ENDIAN
+              && dso->ehdr.e_ident[EI_DATA] == ELFDATA2MSB));
+  crc = 0;
+  for (i = 1; i < dso->ehdr.e_shnum; ++i)
+    {
+      if (! (dso->shdr[i].sh_flags & (SHF_ALLOC | SHF_WRITE | SHF_EXECINSTR)))
+       continue;
+      if (dso->shdr[i].sh_type != SHT_NOBITS && dso->shdr[i].sh_size)
+       {
+         Elf_Scn *scn = dso->scn[i];
+         Elf_Data *d = NULL;
+
+         /* Cannot use elf_rawdata here, since the image is not written
+            yet.  */
+         while ((d = elf_getdata (scn, d)) != NULL)
+           {
+             if (cvt && d->d_type != ELF_T_BYTE)
+               {
+                 gelf_xlatetof (dso->elf, d, d,
+                                dso->ehdr.e_ident[EI_DATA]);
+                 crc = crc32 (crc, d->d_buf, d->d_size);
+                 gelf_xlatetom (dso->elf, d, d,
+                                dso->ehdr.e_ident[EI_DATA]);
+               }
+             else
+               crc = crc32 (crc, d->d_buf, d->d_size);
+           }
+       }
+    }
+
+  if (set_dynamic (dso, DT_CHECKSUM, crc, 1))
+    abort ();
+  if (dso->info_DT_GNU_PRELINKED
+      && set_dynamic (dso, DT_GNU_PRELINKED, dso->info_DT_GNU_PRELINKED, 1))
+    abort ();
+  dso->info_DT_CHECKSUM = crc;
+
+  return 0;
+}
diff --git a/src/conflict.c b/src/conflict.c
new file mode 100644 (file)
index 0000000..9c936ce
--- /dev/null
@@ -0,0 +1,823 @@
+/* Copyright (C) 2001, 2002, 2003, 2004, 2007, 2009 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include "prelink.h"
+#include "reloc.h"
+
+struct prelink_conflict *
+prelink_conflict (struct prelink_info *info, GElf_Word r_sym,
+                 int reloc_type)
+{
+  GElf_Word symoff = info->symtab_start + r_sym * info->symtab_entsize;
+  struct prelink_conflict *conflict;
+  int reloc_class = info->dso->arch->reloc_class (reloc_type);
+  size_t idx = 0;
+
+  if (info->curconflicts->hash != &info->curconflicts->first)
+    idx = symoff % 251;
+  for (conflict = info->curconflicts->hash[idx]; conflict;
+       conflict = conflict->next)
+    if (conflict->symoff == symoff && conflict->reloc_class == reloc_class)
+      {
+       conflict->used = 1;
+       return conflict;
+      }
+
+  return NULL;
+}
+
+GElf_Rela *
+prelink_conflict_add_rela (struct prelink_info *info)
+{
+  GElf_Rela *ret;
+
+  if (info->conflict_rela_alloced == info->conflict_rela_size)
+    {
+      info->conflict_rela_alloced += 10;
+      info->conflict_rela = realloc (info->conflict_rela,
+                                    info->conflict_rela_alloced
+                                    * sizeof (GElf_Rela));
+      if (info->conflict_rela == NULL)
+       {
+         error (0, ENOMEM, "Could not build .gnu.conflict section memory image");
+         return NULL;
+       }
+    }
+  ret = info->conflict_rela + info->conflict_rela_size++;
+  ret->r_offset = 0;
+  ret->r_info = 0;
+  ret->r_addend = 0;
+  return ret;
+}
+
+static int
+prelink_conflict_rel (DSO *dso, int n, struct prelink_info *info)
+{
+  Elf_Data *data = NULL;
+  Elf_Scn *scn = dso->scn[n];
+  GElf_Rel rel;
+  int sec, ndx, maxndx;
+
+  while ((data = elf_getdata (scn, data)) != NULL)
+    {
+      GElf_Addr addr = dso->shdr[n].sh_addr + data->d_off;
+
+      maxndx = data->d_size / dso->shdr[n].sh_entsize;
+      for (ndx = 0; ndx < maxndx;
+          ++ndx, addr += dso->shdr[n].sh_entsize)
+       {
+         gelfx_getrel (dso->elf, data, ndx, &rel);
+         sec = addr_to_sec (dso, rel.r_offset);
+         if (sec == -1)
+           continue;
+
+         if (dso->arch->prelink_conflict_rel (dso, info, &rel, addr))
+           return 1;
+       }
+    }
+  return 0;
+}
+
+static int
+prelink_conflict_rela (DSO *dso, int n, struct prelink_info *info)
+{
+  Elf_Data *data = NULL;
+  Elf_Scn *scn = dso->scn[n];
+  GElf_Rela rela;
+  int sec, ndx, maxndx;
+
+  while ((data = elf_getdata (scn, data)) != NULL)
+    {
+      GElf_Addr addr = dso->shdr[n].sh_addr + data->d_off;
+
+      maxndx = data->d_size / dso->shdr[n].sh_entsize;
+      for (ndx = 0; ndx < maxndx;
+          ++ndx, addr += dso->shdr[n].sh_entsize)
+       {
+         gelfx_getrela (dso->elf, data, ndx, &rela);
+         sec = addr_to_sec (dso, rela.r_offset);
+         if (sec == -1)
+           continue;
+
+         if (dso->arch->prelink_conflict_rela (dso, info, &rela, addr))
+           return 1;
+       }
+    }
+  return 0;
+}
+
+struct copy_relocs
+{
+  GElf_Rela *rela;
+  int alloced;
+  int count;
+};
+
+static int
+prelink_add_copy_rel (DSO *dso, int n, GElf_Rel *rel, struct copy_relocs *cr)
+{
+  Elf_Data *data = NULL;
+  int symsec = dso->shdr[n].sh_link;
+  Elf_Scn *scn = dso->scn[symsec];
+  GElf_Sym sym;
+  size_t entsize = dso->shdr[symsec].sh_entsize;
+  off_t off = GELF_R_SYM (rel->r_info) * entsize;
+
+  while ((data = elf_getdata (scn, data)) != NULL)
+    {
+      if (data->d_off <= off &&
+         data->d_off + data->d_size >= off + entsize)
+       {
+         gelfx_getsym (dso->elf, data, (off - data->d_off) / entsize, &sym);
+         if (sym.st_size == 0)
+           {
+             error (0, 0, "%s: Copy reloc against symbol with zero size",
+                    dso->filename);
+             return 1;
+           }
+
+         if (cr->alloced == cr->count)
+           {
+             cr->alloced += 10;
+             cr->rela = realloc (cr->rela, cr->alloced * sizeof (GElf_Rela));
+             if (cr->rela == NULL)
+               {
+                 error (0, ENOMEM, "%s: Could not build list of COPY relocs",
+                        dso->filename);
+                 return 1;
+               }
+           }
+         cr->rela[cr->count].r_offset = rel->r_offset;
+         cr->rela[cr->count].r_info = rel->r_info;
+         cr->rela[cr->count].r_addend = sym.st_size;
+         ++cr->count;
+         return 0;
+       }
+    }
+
+  error (0, 0, "%s: Copy reloc against unknown symbol", dso->filename);
+  return 1;
+}
+
+static int
+prelink_find_copy_rel (DSO *dso, int n, struct copy_relocs *cr)
+{
+  Elf_Data *data = NULL;
+  Elf_Scn *scn = dso->scn[n];
+  GElf_Rel rel;
+  int sec, ndx, maxndx;
+
+  while ((data = elf_getdata (scn, data)) != NULL)
+    {
+      maxndx = data->d_size / dso->shdr[n].sh_entsize;
+      for (ndx = 0; ndx < maxndx; ++ndx)
+       {
+         gelfx_getrel (dso->elf, data, ndx, &rel);
+         sec = addr_to_sec (dso, rel.r_offset);
+         if (sec == -1)
+           continue;
+
+         if (GELF_R_TYPE (rel.r_info) == dso->arch->R_COPY
+             && prelink_add_copy_rel (dso, n, &rel, cr))
+           return 1;
+       }
+    }
+  return 0;
+}
+
+static int
+prelink_find_copy_rela (DSO *dso, int n, struct copy_relocs *cr)
+{
+  Elf_Data *data = NULL;
+  Elf_Scn *scn = dso->scn[n];
+  union {
+    GElf_Rel rel;
+    GElf_Rela rela;
+  } u;
+  int sec, ndx, maxndx;
+
+  while ((data = elf_getdata (scn, data)) != NULL)
+    {
+      maxndx = data->d_size / dso->shdr[n].sh_entsize;
+      for (ndx = 0; ndx < maxndx; ++ndx)
+       {
+         gelfx_getrela (dso->elf, data, ndx, &u.rela);
+         sec = addr_to_sec (dso, u.rela.r_offset);
+         if (sec == -1)
+           continue;
+
+         if (GELF_R_TYPE (u.rela.r_info) == dso->arch->R_COPY)
+           {
+             if (u.rela.r_addend != 0)
+               {
+                 error (0, 0, "%s: COPY reloc with non-zero addend?",
+                        dso->filename);
+                 return 1;
+               }
+             if (prelink_add_copy_rel (dso, n, &u.rel, cr))
+               return 1;
+           }
+       }
+    }
+  return 0;
+}
+
+static int
+rela_cmp (const void *A, const void *B)
+{
+  GElf_Rela *a = (GElf_Rela *)A;
+  GElf_Rela *b = (GElf_Rela *)B;
+
+  if (a->r_offset < b->r_offset)
+    return -1;
+  if (a->r_offset > b->r_offset)
+    return 1;
+  return 0;
+}
+
+static int
+conflict_rela_cmp (const void *A, const void *B)
+{
+  GElf_Rela *a = (GElf_Rela *)A;
+  GElf_Rela *b = (GElf_Rela *)B;
+
+  if (GELF_R_SYM (a->r_info) < GELF_R_SYM (b->r_info))
+    return -1;
+  if (GELF_R_SYM (a->r_info) > GELF_R_SYM (b->r_info))
+    return 1;
+  if (a->r_offset < b->r_offset)
+    return -1;
+  if (a->r_offset > b->r_offset)
+    return 1;
+  return 0;
+}
+
+int
+get_relocated_mem (struct prelink_info *info, DSO *dso, GElf_Addr addr,
+                  char *buf, GElf_Word size, GElf_Addr dest_addr)
+{
+  int sec = addr_to_sec (dso, addr), j;
+  Elf_Scn *scn;
+  Elf_Data *data;
+  off_t off;
+
+  if (sec == -1)
+    return 1;
+
+  memset (buf, 0, size);
+  if (dso->shdr[sec].sh_type != SHT_NOBITS)
+    {
+      scn = dso->scn[sec];
+      data = NULL;
+      off = addr - dso->shdr[sec].sh_addr;
+      while ((data = elf_rawdata (scn, data)) != NULL)
+       {
+         if (data->d_off < off + size
+             && data->d_off + data->d_size > off)
+           {
+             off_t off2 = off - data->d_off;
+             size_t len = size;
+
+             if (off2 < 0)
+               {
+                 len += off2;
+                 off2 = 0;
+               }
+             if (off2 + len > data->d_size)
+               len = data->d_size - off2;
+             assert (off2 + len <= data->d_size);
+             assert (len <= size);
+             memcpy (buf + off2 - off, data->d_buf + off2, len);
+           }
+       }
+    }
+
+  if (info->dso != dso)
+    {
+      /* This is tricky. We need to apply any conflicts
+        against memory area which we've copied to the COPY
+        reloc offset.  */
+      for (j = 0; j < info->conflict_rela_size; ++j)
+       {
+         int reloc_type, reloc_size, ret;
+         off_t off;
+
+         if (info->conflict_rela[j].r_offset >= addr + size)
+           continue;
+         if (info->conflict_rela[j].r_offset + dso->arch->max_reloc_size
+             <= addr)
+           continue;
+
+         reloc_type = GELF_R_TYPE (info->conflict_rela[j].r_info);
+         reloc_size = dso->arch->reloc_size (reloc_type);
+         if (info->conflict_rela[j].r_offset + reloc_size <= addr)
+           continue;
+
+         off = info->conflict_rela[j].r_offset - addr;
+
+         /* Check if whole relocation fits into the area.
+            Punt if not.  */
+         if (off < 0 || size - off < reloc_size)
+           return 2;
+         /* Note that apply_conflict_rela shouldn't rely on R_SYM
+            field of conflict to be 0.  */
+         ret
+           = dso->arch->apply_conflict_rela (info, info->conflict_rela + j,
+                                             buf + off,
+                                             dest_addr ? dest_addr + off : 0);
+         if (ret)
+           return ret;
+       }
+    }
+  else
+    {
+      int i, ndx, maxndx;
+      int reloc_type, reloc_size;
+      union { GElf_Rel rel; GElf_Rela rela; } u;
+      off_t off;
+
+      if (addr + size > info->dynbss_base
+         && addr < info->dynbss_base + info->dynbss_size)
+       {
+         if (addr < info->dynbss_base
+             || addr + size > info->dynbss_base + info->dynbss_size)
+           return 4;
+
+         memcpy (buf, info->dynbss + (addr - info->dynbss_base), size);
+         return 0;
+       }
+
+      if (addr + size > info->sdynbss_base
+         && addr < info->sdynbss_base + info->sdynbss_size)
+       {
+         if (addr < info->sdynbss_base
+             || addr + size > info->sdynbss_base + info->sdynbss_size)
+           return 4;
+
+         memcpy (buf, info->sdynbss + (addr - info->sdynbss_base), size);
+         return 0;
+       }
+
+      for (i = 1; i < dso->ehdr.e_shnum; ++i)
+       {
+
+         if (! (dso->shdr[i].sh_flags & SHF_ALLOC))
+           continue;
+         if (! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                               dso->shdr[i].sh_name),
+                       ".gnu.conflict"))
+           continue;
+         switch (dso->shdr[i].sh_type)
+           {
+           case SHT_REL:
+           case SHT_RELA:
+             break;
+           default:
+             continue;
+           }
+         scn = dso->scn[i];
+         data = NULL;
+         while ((data = elf_getdata (scn, data)) != NULL)
+           {
+             maxndx = data->d_size / dso->shdr[i].sh_entsize;
+             for (ndx = 0; ndx < maxndx; ++ndx)
+               {
+                 if (dso->shdr[i].sh_type == SHT_REL)
+                   gelfx_getrel (dso->elf, data, ndx, &u.rel);
+                 else
+                   gelfx_getrela (dso->elf, data, ndx, &u.rela);
+
+                 if (u.rel.r_offset >= addr + size)
+                   continue;
+                 if (u.rel.r_offset + dso->arch->max_reloc_size <= addr)
+                   continue;
+
+                 reloc_type = GELF_R_TYPE (u.rel.r_info);
+                 reloc_size = dso->arch->reloc_size (reloc_type);
+                 if (u.rel.r_offset + reloc_size <= addr)
+                   continue;
+
+                 if (reloc_type == dso->arch->R_COPY)
+                   return 3;
+
+                 off = u.rel.r_offset - addr;
+
+                 /* Check if whole relocation fits into the area.
+                    Punt if not.  */
+                 if (off < 0 || size - off < reloc_size)
+                   return 2;
+
+                 if (dso->shdr[i].sh_type == SHT_REL)
+                   dso->arch->apply_rel (info, &u.rel, buf + off);
+                 else
+                   dso->arch->apply_rela (info, &u.rela, buf + off);
+               }
+           }
+       }
+    }
+
+  return 0;
+}
+
+int
+prelink_build_conflicts (struct prelink_info *info)
+{
+  int i, ndeps = info->ent->ndepends + 1;
+  struct prelink_entry *ent;
+  int ret = 0;
+  DSO *dso;
+  struct copy_relocs cr;
+
+  info->dsos = alloca (sizeof (struct DSO *) * ndeps);
+  memset (info->dsos, 0, sizeof (struct DSO *) * ndeps);
+  memset (&cr, 0, sizeof (cr));
+  info->dsos[0] = info->dso;
+  for (i = 1; i < ndeps; ++i)
+    {
+      ent = info->ent->depends[i - 1];
+      if ((dso = open_dso (ent->filename)) == NULL)
+       goto error_out;
+      info->dsos[i] = dso;
+      /* Now check that the DSO matches what we recorded about it.  */
+      if (ent->timestamp != dso->info_DT_GNU_PRELINKED
+         || ent->checksum != dso->info_DT_CHECKSUM
+         || ent->base != dso->base)
+       {
+         error (0, 0, "%s: Library %s has changed since it has been prelinked",
+                info->dso->filename, ent->filename);
+         goto error_out;
+       }
+    }
+
+  for (i = 0; i < ndeps; ++i)
+    {
+      int j, sec, first_conflict, maxidx;
+      struct prelink_conflict *conflict;
+
+      dso = info->dsos[i];
+      ent = i ? info->ent->depends[i - 1] : info->ent;
+
+      /* Verify .gnu.liblist sections of all dependent libraries.  */
+      if (i && ent->ndepends > 0)
+       {
+         const char *name;
+         int nliblist;
+         Elf32_Lib *liblist;
+         Elf_Scn *scn;
+         Elf_Data *data;
+
+         for (j = 1; j < dso->ehdr.e_shnum; ++j)
+           if (dso->shdr[j].sh_type == SHT_GNU_LIBLIST
+               && (name = strptr (dso, dso->ehdr.e_shstrndx,
+                                  dso->shdr[j].sh_name))
+               && ! strcmp (name, ".gnu.liblist")
+               && (dso->shdr[j].sh_size % sizeof (Elf32_Lib)) == 0)
+             break;
+
+         if (j == dso->ehdr.e_shnum)
+           {
+             error (0, 0, "%s: Library %s has dependencies, but doesn't contain .gnu.liblist section",
+                    info->dso->filename, ent->filename);
+             goto error_out;
+           }
+
+         nliblist = dso->shdr[j].sh_size / sizeof (Elf32_Lib);
+         scn = dso->scn[j];
+         data = elf_getdata (scn, NULL);
+         if (data == NULL || elf_getdata (scn, data)
+             || data->d_buf == NULL || data->d_off
+             || data->d_size != dso->shdr[j].sh_size)
+           {
+             error (0, 0, "%s: Could not read .gnu.liblist section from %s",
+                    info->dso->filename, ent->filename);
+             goto error_out;
+           }
+
+         if (nliblist != ent->ndepends)
+           {
+             error (0, 0, "%s: Library %s has different number of libs in .gnu.liblist than expected",
+                    info->dso->filename, ent->filename);
+             goto error_out;
+           }
+         liblist = (Elf32_Lib *) data->d_buf;
+         for (j = 0; j < nliblist; ++j)
+           if (liblist[j].l_time_stamp != ent->depends[j]->timestamp
+               || liblist[j].l_checksum != ent->depends[j]->checksum)
+             {
+               error (0, 0, "%s: .gnu.liblist in library %s is inconsistent with recorded dependencies",
+                      info->dso->filename, ent->filename);
+               goto error_out;
+             }
+
+         /* Extra check, maybe not needed.  */
+         for (j = 0; j < nliblist; ++j)
+           {
+             int k;
+             for (k = 0; k < info->ent->ndepends; ++k)
+               if (liblist[j].l_time_stamp == info->ent->depends[k]->timestamp
+                   && liblist[j].l_checksum == info->ent->depends[k]->checksum)
+                 break;
+
+             if (k == info->ent->ndepends)
+               abort ();
+           }
+       }
+
+      info->curconflicts = &info->conflicts[i];
+      info->curtls = info->tls[i].modid ? info->tls + i : NULL;
+      first_conflict = info->conflict_rela_size;
+      sec = addr_to_sec (dso, dso->info[DT_SYMTAB]);
+      /* DT_SYMTAB should be found and should point to
+        start of .dynsym section.  */
+      if (sec == -1 || dso->info[DT_SYMTAB] != dso->shdr[sec].sh_addr)
+       {
+         error (0, 0, "Bad symtab");
+         goto error_out;
+       }
+      info->symtab_start = dso->shdr[sec].sh_addr - dso->base;
+      info->symtab_end = info->symtab_start + dso->shdr[sec].sh_size;
+      for (j = 0; j < dso->ehdr.e_shnum; ++j)
+       {
+         if (! (dso->shdr[j].sh_flags & SHF_ALLOC))
+           continue;
+         switch (dso->shdr[j].sh_type)
+           {
+           case SHT_REL:
+             if (i == 0
+                 && strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                    dso->shdr[j].sh_name),
+                            ".gnu.conflict") == 0)
+               break;
+             if (prelink_conflict_rel (dso, j, info))
+               goto error_out;
+             break;
+           case SHT_RELA:
+             if (i == 0
+                 && strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                    dso->shdr[j].sh_name),
+                            ".gnu.conflict") == 0)
+               break;
+             if (prelink_conflict_rela (dso, j, info))
+               goto error_out;
+             break;
+           }
+       }
+
+      if (dso->arch->arch_prelink_conflict
+         && dso->arch->arch_prelink_conflict (dso, info))
+       goto error_out;
+
+      maxidx = 1;
+      if (info->curconflicts->hash != &info->curconflicts->first)
+       maxidx = 251;
+      for (j = 0; j < maxidx; j++)
+       for (conflict = info->curconflicts->hash[j]; conflict;
+            conflict = conflict->next)
+         if (! conflict->used && (i || conflict->ifunc))
+           {
+             error (0, 0, "%s: Conflict %08llx not found in any relocation",
+                    dso->filename, (unsigned long long) conflict->symoff);
+             ret = 1;
+           }
+
+      /* Record library's position in search scope into R_SYM field.  */
+      for (j = first_conflict; j < info->conflict_rela_size; ++j)
+       info->conflict_rela[j].r_info
+         = GELF_R_INFO (i, GELF_R_TYPE (info->conflict_rela[j].r_info));
+
+      if (dynamic_info_is_set (dso, DT_TEXTREL)
+         && info->conflict_rela_size > first_conflict)
+       {
+         /* We allow prelinking against non-PIC libraries, as long as
+            no conflict is against read-only segment.  */
+         int k;
+
+         for (j = first_conflict; j < info->conflict_rela_size; ++j)
+           for (k = 0; k < dso->ehdr.e_phnum; ++k)
+             if (dso->phdr[k].p_type == PT_LOAD
+                 && (dso->phdr[k].p_flags & PF_W) == 0
+                 && dso->phdr[k].p_vaddr
+                    <= info->conflict_rela[j].r_offset
+                 && dso->phdr[k].p_vaddr + dso->phdr[k].p_memsz
+                    > info->conflict_rela[j].r_offset)
+               {
+                 error (0, 0, "%s: Cannot prelink against non-PIC shared library %s",
+                        info->dso->filename, dso->filename);
+                 goto error_out;
+               }
+       }
+    }
+
+  dso = info->dso;
+  for (i = 0; i < dso->ehdr.e_shnum; ++i)
+    {
+      if (! (dso->shdr[i].sh_flags & SHF_ALLOC))
+       continue;
+      switch (dso->shdr[i].sh_type)
+       {
+       case SHT_REL:
+         if (prelink_find_copy_rel (dso, i, &cr))
+           goto error_out;
+         break;
+       case SHT_RELA:
+         if (prelink_find_copy_rela (dso, i, &cr))
+           goto error_out;
+         break;
+       }
+    }
+
+  if (cr.count)
+    {
+      int bss1, bss2, firstbss2 = 0;
+      const char *name;
+
+      qsort (cr.rela, cr.count, sizeof (GElf_Rela), rela_cmp);
+      bss1 = addr_to_sec (dso, cr.rela[0].r_offset);
+      bss2 = addr_to_sec (dso, cr.rela[cr.count - 1].r_offset);
+      if (bss1 != bss2)
+       {
+         for (i = 1; i < cr.count; ++i)
+           if (cr.rela[i].r_offset
+               >= dso->shdr[bss1].sh_addr + dso->shdr[bss1].sh_size)
+             break;
+         if (cr.rela[i].r_offset < dso->shdr[bss2].sh_addr)
+           {
+             error (0, 0, "%s: Copy relocs against 3 or more sections",
+                    dso->filename);
+             goto error_out;
+           }
+         firstbss2 = i;
+         info->sdynbss_size = cr.rela[i - 1].r_offset - cr.rela[0].r_offset;
+         info->sdynbss_size += cr.rela[i - 1].r_addend;
+         info->sdynbss = calloc (info->sdynbss_size, 1);
+         info->sdynbss_base = cr.rela[0].r_offset;
+         if (info->sdynbss == NULL)
+           {
+             error (0, ENOMEM, "%s: Cannot build .sdynbss", dso->filename);
+             goto error_out;
+           }
+
+         for (i = 0; i < dso->ehdr.e_phnum; ++i)
+           if (dso->phdr[i].p_type == PT_LOAD
+               && dso->shdr[bss1].sh_addr >= dso->phdr[i].p_vaddr
+               && dso->shdr[bss1].sh_addr
+                  < dso->phdr[i].p_vaddr + dso->phdr[i].p_memsz)
+             break;
+         if (i == dso->ehdr.e_phnum
+             || dso->shdr[bss2].sh_addr + dso->shdr[bss2].sh_size
+                > dso->phdr[i].p_vaddr + dso->phdr[i].p_memsz)
+           {
+             error (0, 0, "%s: Copy relocs against more than one segment",
+                    dso->filename);
+             goto error_out;
+           }
+       }
+
+      info->dynbss_size = cr.rela[cr.count - 1].r_offset
+                         - cr.rela[firstbss2].r_offset;
+      info->dynbss_size += cr.rela[cr.count - 1].r_addend;
+      info->dynbss = calloc (info->dynbss_size, 1);
+      info->dynbss_base = cr.rela[firstbss2].r_offset;
+      if (info->dynbss == NULL)
+       {
+         error (0, ENOMEM, "%s: Cannot build .dynbss", dso->filename);
+         goto error_out;
+       }
+
+      /* emacs apparently has .rel.bss relocations against .data section,
+        crap.  */
+      if (dso->shdr[bss1].sh_type != SHT_NOBITS
+         && strcmp (name = strptr (dso, dso->ehdr.e_shstrndx,
+                                   dso->shdr[bss1].sh_name),
+                    ".dynbss") != 0
+         && strcmp (name, ".sdynbss") != 0)
+       {
+         error (0, 0, "%s: COPY relocations don't point into .bss or .sbss section",
+                dso->filename);
+         goto error_out;
+       }
+      if (bss1 != bss2
+         && dso->shdr[bss2].sh_type != SHT_NOBITS
+         && strcmp (name = strptr (dso, dso->ehdr.e_shstrndx,
+                                   dso->shdr[bss2].sh_name),
+                    ".dynbss") != 0
+         && strcmp (name, ".sdynbss") != 0)
+       {
+         error (0, 0, "%s: COPY relocations don't point into .bss or .sbss section",
+                dso->filename);
+         goto error_out;
+       }
+
+      for (i = 0; i < cr.count; ++i)
+       {
+         struct prelink_symbol *s;
+         DSO *ndso = NULL;
+         int j, reloc_class;
+
+         reloc_class
+           = dso->arch->reloc_class (GELF_R_TYPE (cr.rela[i].r_info));
+
+         assert (reloc_class != RTYPE_CLASS_TLS);
+
+         for (s = & info->symbols[GELF_R_SYM (cr.rela[i].r_info)]; s;
+              s = s->next)
+           if (s->reloc_class == reloc_class)
+             break;
+
+         if (s == NULL || s->u.ent == NULL)
+           {
+             error (0, 0, "%s: Could not find symbol copy reloc is against",
+                    dso->filename);
+             goto error_out;
+           }
+
+         for (j = 1; j < ndeps; ++j)
+           if (info->ent->depends[j - 1] == s->u.ent)
+             {
+               ndso = info->dsos[j];
+               break;
+             }
+
+         assert (j < ndeps);
+         if (i < firstbss2)
+           j = get_relocated_mem (info, ndso, s->u.ent->base + s->value,
+                                  info->sdynbss + cr.rela[i].r_offset
+                                  - info->sdynbss_base, cr.rela[i].r_addend,
+                                  cr.rela[i].r_offset);
+         else
+           j = get_relocated_mem (info, ndso, s->u.ent->base + s->value,
+                                  info->dynbss + cr.rela[i].r_offset
+                                  - info->dynbss_base, cr.rela[i].r_addend,
+                                  cr.rela[i].r_offset);
+
+         switch (j)
+           {
+           case 1:
+             error (0, 0, "%s: Could not find variable copy reloc is against",
+                    dso->filename);
+             goto error_out;
+           case 2:
+             error (0, 0, "%s: Conflict partly overlaps with %08llx-%08llx area",
+                    dso->filename,
+                    (long long) cr.rela[i].r_offset,
+                    (long long) (cr.rela[i].r_offset + cr.rela[i].r_addend));
+             goto error_out;
+           }
+       }
+    }
+
+  if (info->conflict_rela_size)
+    {
+      qsort (info->conflict_rela, info->conflict_rela_size, sizeof (GElf_Rela),
+            conflict_rela_cmp);
+
+      /* Now make sure all conflict RELA's are against absolute 0 symbol.  */
+      for (i = 0; i < info->conflict_rela_size; ++i)
+       info->conflict_rela[i].r_info
+         = GELF_R_INFO (0, GELF_R_TYPE (info->conflict_rela[i].r_info));
+
+      if (enable_cxx_optimizations && remove_redundant_cxx_conflicts (info))
+       goto error_out;
+    }
+
+  for (i = 1; i < ndeps; ++i)
+    if (info->dsos[i])
+      close_dso (info->dsos[i]);
+
+  info->dsos = NULL;
+  free (cr.rela);
+  return ret;
+
+error_out:
+  free (cr.rela);
+  free (info->dynbss);
+  free (info->sdynbss);
+  info->dynbss = NULL;
+  info->sdynbss = NULL;
+  for (i = 1; i < ndeps; ++i)
+    if (info->dsos[i])
+      close_dso (info->dsos[i]);
+  return 1;
+}
diff --git a/src/crc32.c b/src/crc32.c
new file mode 100644 (file)
index 0000000..f36abb5
--- /dev/null
@@ -0,0 +1,87 @@
+/* Copyright (C) 2001 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <stdint.h>
+#include <sys/types.h>
+
+/* Table computed with Mark Adler's makecrc.c utility.  */
+static const uint32_t crc32_table[256] =
+{
+  0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
+  0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
+  0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
+  0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
+  0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
+  0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
+  0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
+  0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
+  0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
+  0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
+  0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
+  0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
+  0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
+  0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
+  0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
+  0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
+  0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
+  0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
+  0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
+  0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
+  0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
+  0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
+  0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
+  0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
+  0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
+  0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
+  0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
+  0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
+  0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
+  0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
+  0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
+  0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
+  0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
+  0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
+  0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
+  0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
+  0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
+  0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
+  0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
+  0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
+  0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
+  0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
+  0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
+  0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
+  0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
+  0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
+  0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
+  0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
+  0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
+  0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
+  0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
+  0x2d02ef8d
+};
+
+uint32_t crc32 (uint32_t crc, unsigned char *buf, size_t len)
+{
+  unsigned char *end;
+
+  crc = ~crc;
+  for (end = buf + len; buf < end; ++buf)
+    crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8);
+  return ~crc;
+}
diff --git a/src/cxx.c b/src/cxx.c
new file mode 100644 (file)
index 0000000..9a20b3c
--- /dev/null
+++ b/src/cxx.c
@@ -0,0 +1,641 @@
+/* Copyright (C) 2001, 2002, 2003, 2007, 2009 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <alloca.h>
+#include <assert.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/wait.h>
+#include "prelink.h"
+
+static struct
+  {
+    const char *prefix;
+    unsigned char prefix_len, st_info, check_pltref;
+  }
+specials[] =
+  {
+    /* G++ 3.0 ABI.  */
+    /* Virtual table.  */
+    { "_ZTV", 4, GELF_ST_INFO (STB_WEAK, STT_OBJECT), 1 },
+    /* Typeinfo.  */
+    { "_ZTI", 4, GELF_ST_INFO (STB_WEAK, STT_OBJECT), 0 },
+    /* G++ 2.96-RH ABI.  */
+    /* Virtual table.  */
+    { "__vt_", 5, GELF_ST_INFO (STB_WEAK, STT_OBJECT), 0 },
+    { NULL, 0, 0, 0 }
+  };
+
+struct find_cxx_sym_valsize
+{
+  GElf_Addr start;
+  GElf_Addr end;
+  unsigned int idx;
+  unsigned char mark;
+};
+
+struct find_cxx_sym_cache
+{
+  Elf_Data *symtab, *strtab;
+  int symsec, strsec, count;
+  struct find_cxx_sym_valsize vals[];
+};
+
+struct find_cxx_sym
+{
+  DSO *dso;
+  int n;
+  struct find_cxx_sym_cache *cache;
+  struct prelink_entry *ent;
+  Elf_Data *symtab, *strtab;
+  int symsec, strsec;
+  int lastndx;
+  GElf_Sym sym;
+};
+
+static int
+cachecmp (const void *a, const void *b)
+{
+  GElf_Addr va = ((const struct find_cxx_sym_valsize *) a)->start;
+  GElf_Addr vb = ((const struct find_cxx_sym_valsize *) b)->start;
+
+  if (va < vb)
+    return -1;
+  if (va > vb)
+    return 1;
+
+  va = ((const struct find_cxx_sym_valsize *) a)->end;
+  vb = ((const struct find_cxx_sym_valsize *) b)->end;
+
+  if (va < vb)
+    return -1;
+
+  return va > vb;
+}
+
+static struct find_cxx_sym_cache *
+create_cache (DSO *dso, int plt)
+{
+  Elf_Data *symtab, *strtab;
+  Elf_Scn *scn;
+  int symsec, strsec, ndx, dndx, maxndx;
+  struct find_cxx_sym_cache *cache;
+  GElf_Addr top;
+
+  symsec = addr_to_sec (dso, dso->info[DT_SYMTAB]);
+  if (symsec == -1)
+    return (struct find_cxx_sym_cache *) -1UL;
+  scn = dso->scn[symsec];
+  symtab = elf_getdata (scn, NULL);
+  assert (elf_getdata (scn, symtab) == NULL);
+  strsec = addr_to_sec (dso, dso->info[DT_STRTAB]);
+  if (strsec == -1)
+    return (struct find_cxx_sym_cache *) -1UL;
+  scn = dso->scn[strsec];
+  strtab = elf_getdata (scn, NULL);
+  assert (elf_getdata (scn, strtab) == NULL);
+  maxndx = symtab->d_size / dso->shdr[symsec].sh_entsize;
+
+  cache = malloc (sizeof (*cache) + sizeof (cache->vals[0]) * maxndx);
+  if (cache == NULL)
+    {
+      error (0, ENOMEM, "%s: Could load symbol table", dso->filename);
+      return NULL;
+    }
+
+  cache->symsec = symsec;
+  cache->strsec = strsec;
+  cache->symtab = symtab;
+  cache->strtab = strtab;
+  for (ndx = 0, dndx = 0; ndx < maxndx; ++ndx)
+    {
+      GElf_Sym sym;
+      const char *name;
+      int k;
+
+      gelfx_getsym (dso->elf, symtab, ndx, &sym);
+      if (plt)
+       {
+         if (sym.st_shndx != SHN_UNDEF || sym.st_value == 0)
+           continue;
+       }
+      else if (sym.st_shndx == SHN_UNDEF)
+       continue;
+      cache->vals[dndx].start = sym.st_value;
+      cache->vals[dndx].end = sym.st_value + sym.st_size;
+      cache->vals[dndx].idx = ndx;
+      cache->vals[dndx].mark = 0;
+      name = (const char *) strtab->d_buf + sym.st_name;
+      if (!plt && ELF32_ST_VISIBILITY (sym.st_other) == STV_DEFAULT)
+       for (k = 0; specials[k].prefix; ++k)
+         if (sym.st_info == specials[k].st_info
+             && strncmp (name, specials[k].prefix,
+                         specials[k].prefix_len) == 0)
+           {
+             cache->vals[dndx].mark = 1;
+             break;
+           }
+      ++dndx;
+    }
+
+  maxndx = dndx;
+  qsort (cache->vals, maxndx, sizeof (cache->vals[0]), cachecmp);
+
+  if (!plt)
+    {
+      for (top = 0, ndx = 0; ndx < maxndx; ++ndx)
+       {
+         if (cache->vals[ndx].start < top
+             || (ndx < maxndx - 1
+                 && cache->vals[ndx].end > cache->vals[ndx + 1].start))
+           cache->vals[ndx].mark = 0;
+         if (cache->vals[ndx].end > top)
+           top = cache->vals[ndx].end;
+       }
+
+      for (ndx = dndx = 0; ndx < maxndx; ++ndx)
+       if (cache->vals[ndx].mark)
+         cache->vals[dndx++] = cache->vals[ndx];
+    }
+  cache->count = dndx;
+  return cache;
+}
+
+static int
+find_cxx_sym (struct prelink_info *info, GElf_Addr addr,
+             struct find_cxx_sym *fcs, int reloc_size,
+             struct find_cxx_sym_cache **cache)
+{
+  int n, ndeps = info->ent->ndepends + 1;
+  unsigned int hi, lo, mid;
+  DSO *dso = NULL;
+  struct find_cxx_sym_cache *c;
+
+  if (fcs->dso == NULL
+      || addr < fcs->dso->base
+      || addr >= fcs->dso->end)
+    {
+      for (n = 1; n < ndeps; ++n)
+       {
+         dso = info->dsos[n];
+         if (addr >= dso->base
+             && addr < dso->end)
+           break;
+       }
+
+      if (n == ndeps
+         && addr >= info->dso->base
+         && addr < info->dso->end)
+       {
+         n = 0;
+         dso = info->dso;
+       }
+
+      assert (n < ndeps);
+
+      if (cache[n] == NULL)
+       {
+         cache[n] = create_cache (dso, 0);
+         if (cache[n] == NULL)
+           return -2;
+       }
+      if (cache[n] == (struct find_cxx_sym_cache *) -1UL)
+       return -1;
+
+      fcs->n = n;
+      fcs->ent = n ? info->ent->depends[n - 1] : info->ent;
+      fcs->dso = dso;
+      fcs->cache = cache[n];
+      fcs->symsec = fcs->cache->symsec;
+      fcs->symtab = fcs->cache->symtab;
+      fcs->strsec = fcs->cache->strsec;
+      fcs->strtab = fcs->cache->strtab;
+      fcs->lastndx = -1;
+    }
+  else
+    dso = fcs->dso;
+
+  c = fcs->cache;
+  lo = 0;
+  hi = c->count;
+  if (fcs->lastndx != -1)
+    {
+      if (c->vals[fcs->lastndx].start <= addr)
+       {
+         lo = fcs->lastndx;
+         if (hi - lo >= 16)
+           {
+             if (c->vals[lo + 2].start > addr)
+               hi = lo + 2;
+             else if (c->vals[lo + 15].start > addr)
+               hi = lo + 15;
+           }
+       }
+      else
+       {
+         hi = fcs->lastndx;
+         if (hi >= 15)
+           {
+             if (c->vals[hi - 2].start <= addr)
+               lo = hi - 2;
+             else if (c->vals[hi - 15].start <= addr)
+               lo = hi - 15;
+           }
+       }
+    }
+  while (lo < hi)
+    {
+      mid = (lo + hi) / 2;
+      if (c->vals[mid].start <= addr)
+       {
+         if (c->vals[mid].end >= addr + reloc_size)
+           {
+             gelfx_getsym (dso->elf, fcs->symtab, c->vals[mid].idx,
+                           &fcs->sym);
+             fcs->lastndx = mid;
+             return c->vals[mid].idx;
+           }
+         lo = mid + 1;
+       }
+      else
+       hi = mid;
+    }
+
+  return -1;
+}
+
+/* The idea here is that C++ virtual tables are always emitted
+   in .gnu.linkonce.d.* sections as WEAK symbols and they
+   need to be the same.
+   We check if they are and if yes, remove conflicts against
+   virtual tables which will not be used.  */
+
+int
+remove_redundant_cxx_conflicts (struct prelink_info *info)
+{
+  int i, j, k, n, o, state, removed = 0;
+  int ndx, sec;
+  unsigned int hi, lo, mid;
+  int reloc_type, reloc_size;
+  struct find_cxx_sym fcs1, fcs2;
+  char *mem1, *mem2;
+  const char *name = NULL, *secname = NULL;
+  GElf_Addr symtab_start;
+  GElf_Word symoff;
+  Elf_Data *binsymtab = NULL;
+  int binsymtabsec;
+  struct prelink_conflict *conflict;
+  struct find_cxx_sym_cache **cache;
+  struct find_cxx_sym_cache *binsymcache = NULL;
+  int ret = 0;
+  int rtype_class_valid;
+
+  /* Don't bother doing this for non-C++ programs.  */
+  for (i = 0; i < info->ent->ndepends; ++i)
+    if (strstr (info->ent->depends[i]->canon_filename, "libstdc++"))
+      break;
+  if (i == info->ent->ndepends)
+    return 0;
+
+  binsymtabsec = addr_to_sec (info->dso, info->dso->info[DT_SYMTAB]);
+  if (binsymtabsec != -1)
+    {
+      Elf_Scn *scn = info->dso->scn[binsymtabsec];
+
+      binsymtab = elf_getdata (scn, NULL);
+      assert (elf_getdata (scn, binsymtab) == NULL);
+    }
+
+  rtype_class_valid = info->dso->arch->rtype_class_valid;
+
+  state = 0;
+  memset (&fcs1, 0, sizeof (fcs1));
+  memset (&fcs2, 0, sizeof (fcs2));
+  cache = alloca (sizeof (struct find_cxx_sym_cache *)
+                 * (info->ent->ndepends + 1));
+  memset (cache, '\0', sizeof (struct find_cxx_sym_cache *)
+                      * (info->ent->ndepends + 1));
+  for (i = 0; i < info->conflict_rela_size; ++i)
+    {
+      size_t cidx;
+
+      reloc_type = GELF_R_TYPE (info->conflict_rela[i].r_info);
+      reloc_size = info->dso->arch->reloc_size (reloc_type);
+
+      if (GELF_R_SYM (info->conflict_rela[i].r_info) != 0)
+       continue;
+
+      if (state
+         && fcs1.sym.st_value <= info->conflict_rela[i].r_offset
+         && fcs1.sym.st_value + fcs1.sym.st_size
+            >= info->conflict_rela[i].r_offset + reloc_size)
+       {
+         if (state == 3)
+           goto remove_noref;
+         if (state == 2)
+           goto check_pltref;
+         continue;
+       }
+
+      n = find_cxx_sym (info, info->conflict_rela[i].r_offset,
+                       &fcs1, reloc_size, cache);
+
+      state = 0;
+      if (n == -1)
+       continue;
+      if (n == -2)
+       {
+         ret = 1;
+         goto out_free_cache;
+       }
+      state = 1;
+      sec = addr_to_sec (fcs1.dso, fcs1.sym.st_value);
+      if (sec == -1)
+       continue;
+      secname = strptr (fcs1.dso, fcs1.dso->ehdr.e_shstrndx,
+                       fcs1.dso->shdr[sec].sh_name);
+      if (secname == NULL)
+       continue;
+
+      name = (const char *) fcs1.strtab->d_buf + fcs1.sym.st_name;
+
+      for (k = 0; specials[k].prefix; ++k)
+       if (ELF32_ST_VISIBILITY (fcs1.sym.st_other) == STV_DEFAULT
+           && fcs1.sym.st_info == specials[k].st_info
+           && strncmp (name, specials[k].prefix, specials[k].prefix_len) == 0)
+         break;
+
+      if (specials[k].prefix == NULL)
+       continue;
+
+      if (strcmp (secname, ".data") != 0
+         && strcmp (secname, ".data.rel.ro") != 0
+         && strcmp (secname, ".sdata") != 0)
+       continue;
+
+      if (specials[k].check_pltref)
+       state = 2;
+
+      symtab_start = fcs1.dso->shdr[fcs1.symsec].sh_addr - fcs1.dso->base;
+      symoff = symtab_start + n * fcs1.dso->shdr[fcs1.symsec].sh_entsize;
+
+      cidx = 0;
+      if (info->conflicts[fcs1.n].hash != &info->conflicts[fcs1.n].first)
+       cidx = symoff % 251;
+      for (conflict = info->conflicts[fcs1.n].hash[cidx]; conflict;
+          conflict = conflict->next)
+       if (conflict->symoff == symoff
+           && conflict->reloc_class == rtype_class_valid)
+         break;
+
+      if (conflict == NULL)
+       goto check_pltref;
+
+      if (conflict->conflict.ent != fcs1.ent
+         || fcs1.dso->base + conflict->conflictval != fcs1.sym.st_value)
+       goto check_pltref;
+
+      if (verbose > 4)
+       error (0, 0, "Possible C++ conflict removal from unreferenced table at %s:%s+%d",
+              fcs1.dso->filename, name,
+              (int) (info->conflict_rela[i].r_offset - fcs1.sym.st_value));
+
+      /* Limit size slightly.  */
+      if (fcs1.sym.st_size > 16384)
+       goto check_pltref;
+
+      o = find_cxx_sym (info, conflict->lookup.ent->base + conflict->lookupval,
+                       &fcs2, fcs1.sym.st_size, cache);
+
+      if (o == -2)
+       {
+         ret = 1;
+         goto out_free_cache;
+       }
+
+      if (o == -1
+         || fcs1.sym.st_size != fcs2.sym.st_size
+         || fcs1.sym.st_info != fcs2.sym.st_info
+         || ELF32_ST_VISIBILITY (fcs2.sym.st_other) != STV_DEFAULT
+         || strcmp (name, (char *) fcs2.strtab->d_buf + fcs2.sym.st_name) != 0)
+       goto check_pltref;
+
+      mem1 = malloc (fcs1.sym.st_size * 2);
+      if (mem1 == NULL)
+       {
+         error (0, ENOMEM, "%s: Could not compare %s arrays",
+                info->dso->filename, name);
+         ret = 1;
+         goto out_free_cache;
+       }
+
+      mem2 = mem1 + fcs1.sym.st_size;
+
+      if (get_relocated_mem (info, fcs1.dso, fcs1.sym.st_value, mem1,
+                            fcs1.sym.st_size, 0)
+         || get_relocated_mem (info, fcs2.dso, fcs2.sym.st_value, mem2,
+                               fcs1.sym.st_size, 0)
+         || memcmp (mem1, mem2, fcs1.sym.st_size) != 0)
+       {
+         free (mem1);
+         goto check_pltref;
+       }
+
+      free (mem1);
+
+      state = 3;
+
+remove_noref:
+      if (verbose > 3)
+       error (0, 0, "Removing C++ conflict from unreferenced table at %s:%s+%d",
+              fcs1.dso->filename, name,
+              (int) (info->conflict_rela[i].r_offset - fcs1.sym.st_value));
+
+      info->conflict_rela[i].r_info =
+       GELF_R_INFO (1, GELF_R_TYPE (info->conflict_rela[i].r_info));
+      ++removed;
+      continue;
+
+check_pltref:
+      /* If the binary calls directly (or takes its address) one of the
+        methods in a virtual table, but doesn't define it, there is no
+        need to leave conflicts in the virtual table which will only
+        slow down the code (as it has to hop through binary's .plt
+        back to the method).  */
+      if (state != 2
+         || info->conflict_rela[i].r_addend < info->dso->base
+         || info->conflict_rela[i].r_addend >= info->dso->end
+         || binsymtab == NULL)
+       continue;
+
+      if (binsymcache == NULL)
+       {
+         binsymcache = create_cache (info->dso, 1);
+         if (binsymcache == NULL)
+           {
+             ret = 1;
+             goto out_free_cache;
+           }
+       }
+      if (binsymcache == (struct find_cxx_sym_cache *) -1UL)
+       continue;
+
+      lo = 0;
+      mid = 0;
+      hi = binsymcache->count;
+      while (lo < hi)
+       {
+         mid = (lo + hi) / 2;
+         if (binsymcache->vals[mid].start < info->conflict_rela[i].r_addend)
+           lo = mid + 1;
+         else if (binsymcache->vals[mid].start
+                  > info->conflict_rela[i].r_addend)
+           hi = mid;
+         else
+           break;
+       }
+      if (lo >= hi)
+       continue;
+
+      while (mid > 0 && binsymcache->vals[mid - 1].start
+                       == info->conflict_rela[i].r_addend)
+       --mid;
+
+      while (mid < binsymcache->count
+            && binsymcache->vals[mid].start
+               == info->conflict_rela[i].r_addend)
+       {
+         GElf_Sym sym;
+
+         ndx = binsymcache->vals[mid].idx;
+         mid++;
+         gelfx_getsym (info->dso->elf, binsymtab, ndx, &sym);
+         assert (sym.st_value == info->conflict_rela[i].r_addend);
+         if (sym.st_shndx == SHN_UNDEF && sym.st_value)
+           {
+             struct prelink_symbol *s;
+             size_t maxidx, l;
+
+             if (verbose > 4)
+               error (0, 0, "Possible C++ conflict removal due to reference to binary's .plt at %s:%s+%d",
+                      fcs1.dso->filename, name,
+                      (int) (info->conflict_rela[i].r_offset
+                             - fcs1.sym.st_value));
+
+             for (s = &info->symbols[ndx]; s; s = s->next)
+               if (s->reloc_class == RTYPE_CLASS_PLT)
+                 break;
+
+             if (s == NULL)
+               break;
+
+             maxidx = 1;
+             if (info->conflicts[fcs1.n].hash
+                 != &info->conflicts[fcs1.n].first)
+               {
+                 if (info->conflicts[fcs1.n].hash2 == NULL)
+                   {
+                     info->conflicts[fcs1.n].hash2
+                       = calloc (sizeof (struct prelink_conflict *), 251);
+                     if (info->conflicts[fcs1.n].hash2 != NULL)
+                       {
+                         for (l = 0; l < 251; l++)
+                           for (conflict = info->conflicts[fcs1.n].hash[l];
+                                conflict; conflict = conflict->next)
+                             if (conflict->reloc_class == rtype_class_valid
+                                 && conflict->conflict.ent)
+                               {
+                                 size_t ccidx
+                                   = (conflict->lookup.ent->base
+                                      + conflict->lookupval) % 251;
+                                 conflict->next2
+                                   = info->conflicts[fcs1.n].hash2[ccidx];
+                                 info->conflicts[fcs1.n].hash2[ccidx]
+                                   = conflict;
+                               }
+                       }
+                   }
+                 if (info->conflicts[fcs1.n].hash2 != NULL)
+                   {
+                     size_t ccidx = info->conflict_rela[i].r_addend % 251;
+                     for (conflict = info->conflicts[fcs1.n].hash2[ccidx];
+                          conflict; conflict = conflict->next2)
+                       if (conflict->lookup.ent->base + conflict->lookupval
+                           == info->conflict_rela[i].r_addend
+                           && (conflict->conflict.ent->base
+                               + conflict->conflictval
+                               == s->u.ent->base + s->value))
+                         goto pltref_remove;
+                     break;
+                   }
+                 maxidx = 251;
+               }
+
+             for (l = 0; l < maxidx; l++)
+               for (conflict = info->conflicts[fcs1.n].hash[l];
+                    conflict; conflict = conflict->next)
+                 if (conflict->lookup.ent->base + conflict->lookupval
+                     == info->conflict_rela[i].r_addend
+                     && conflict->conflict.ent
+                     && (conflict->conflict.ent->base
+                         + conflict->conflictval == s->u.ent->base + s->value)
+                     && conflict->reloc_class == rtype_class_valid)
+                   {
+pltref_remove:
+                     if (verbose > 3)
+                       error (0, 0, "Removing C++ conflict due to reference to binary's .plt at %s:%s+%d",
+                              fcs1.dso->filename, name,
+                              (int) (info->conflict_rela[i].r_offset
+                                     - fcs1.sym.st_value));
+
+                     info->conflict_rela[i].r_info =
+                       GELF_R_INFO (1, GELF_R_TYPE (info->conflict_rela[i].r_info));
+                     ++removed;
+                     goto pltref_check_done;
+                   }
+
+pltref_check_done:
+             break;
+           }
+       }
+    }
+
+  if (removed)
+    {
+      for (i = 0, j = 0; i < info->conflict_rela_size; ++i)
+       if (GELF_R_SYM (info->conflict_rela[i].r_info) == 0)
+         {
+           if (i != j)
+             info->conflict_rela[j] = info->conflict_rela[i];
+           ++j;
+         }
+      info->conflict_rela_size = j;
+    }
+
+out_free_cache:
+  for (i = 0; i < info->ent->ndepends + 1; i++)
+    if (cache[i] && cache[i] != (struct find_cxx_sym_cache *) -1UL)
+      free (cache[i]);
+  if (binsymcache && binsymcache != (struct find_cxx_sym_cache *) -1UL)
+    free (binsymcache);
+  return ret;
+}
diff --git a/src/data.c b/src/data.c
new file mode 100644 (file)
index 0000000..742d6b3
--- /dev/null
@@ -0,0 +1,329 @@
+/* Copyright (C) 2001, 2002 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include "prelink.h"
+
+#define UREAD(le,nn)                                           \
+uint##nn##_t                                                   \
+read_u##le##nn (DSO *dso, GElf_Addr addr)                      \
+{                                                              \
+  unsigned char *data = get_data (dso, addr, NULL);            \
+                                                               \
+  if (data == NULL)                                            \
+    return 0;                                                  \
+                                                               \
+  return buf_read_u##le##nn (data);                            \
+}
+
+#define WRITE(le,nn)                                           \
+int                                                            \
+write_##le##nn (DSO *dso, GElf_Addr addr, uint##nn##_t val)    \
+{                                                              \
+  int sec;                                                     \
+  unsigned char *data = get_data (dso, addr, &sec);            \
+                                                               \
+  if (data == NULL)                                            \
+    return -1;                                                 \
+                                                               \
+  buf_write_##le##nn (data, val);                              \
+  elf_flagscn (dso->scn[sec], ELF_C_SET, ELF_F_DIRTY);         \
+  return 0;                                                    \
+}
+
+#define BUFREADUNE(nn)                                         \
+uint##nn##_t                                                   \
+buf_read_une##nn (DSO *dso, unsigned char *buf)                        \
+{                                                              \
+  if (dso->ehdr.e_ident[EI_DATA] == ELFDATA2LSB)               \
+    return buf_read_ule32 (buf);                               \
+  else                                                         \
+    return buf_read_ube32 (buf);                               \
+}
+
+#define READUNE(nn)                                            \
+uint##nn##_t                                                   \
+read_une##nn (DSO *dso, GElf_Addr addr)                                \
+{                                                              \
+  if (dso->ehdr.e_ident[EI_DATA] == ELFDATA2LSB)               \
+    return read_ule##nn (dso, addr);                           \
+  else                                                         \
+    return read_ube##nn (dso, addr);                           \
+}
+
+#define WRITENE(nn)                                            \
+void                                                           \
+write_ne##nn (DSO *dso, GElf_Addr addr, uint##nn##_t val)      \
+{                                                              \
+  if (dso->ehdr.e_ident[EI_DATA] == ELFDATA2LSB)               \
+    write_le##nn (dso, addr, val);                             \
+  else                                                         \
+    write_be##nn (dso, addr, val);                             \
+}
+
+#define BUFWRITENE(nn)                                         \
+void                                                           \
+buf_write_ne##nn (DSO *dso, unsigned char *buf,                        \
+                 uint##nn##_t val)                             \
+{                                                              \
+  if (dso->ehdr.e_ident[EI_DATA] == ELFDATA2LSB)               \
+    buf_write_le##nn (buf, val);                               \
+  else                                                         \
+    buf_write_be##nn (buf, val);                               \
+}
+
+#define READWRITE(le,nn) UREAD(le,nn) WRITE(le,nn)
+#define READWRITESIZE(nn) \
+  READWRITE(le,nn) READWRITE(be,nn) \
+  BUFREADUNE(nn) READUNE(nn) \
+  WRITENE(nn) BUFWRITENE(nn)
+
+unsigned char *
+get_data (DSO *dso, GElf_Addr addr, int *secp)
+{
+  int sec = addr_to_sec (dso, addr);
+  Elf_Data *data = NULL;
+
+  if (sec == -1)
+    return NULL;
+
+  if (secp)
+    *secp = sec;
+
+  addr -= dso->shdr[sec].sh_addr;
+  while ((data = elf_getdata (dso->scn[sec], data)) != NULL)
+    if (data->d_off <= addr && data->d_off + data->d_size > addr)
+      return (unsigned char *) data->d_buf + (addr - data->d_off);
+
+  return NULL;
+}
+
+/* Initialize IT so that the first byte it provides is address ADDR
+   of DSO.  */
+
+void
+init_data_iterator (struct data_iterator *it, DSO *dso, GElf_Addr addr)
+{
+  it->dso = dso;
+  it->data = NULL;
+  it->addr = addr;
+}
+
+/* Return a pointer to the next SIZE bytes pointed to by IT, and move
+   IT to the end of the returned block.  Return null if the data could
+   not be read for some reason.  */
+
+unsigned char *
+get_data_from_iterator (struct data_iterator *it, GElf_Addr size)
+{
+  unsigned char *ptr;
+
+  /* If we're at the end of a data block, move onto the next.  */
+  if (it->data && it->data->d_off + it->data->d_size == it->sec_offset)
+    it->data = elf_getdata (it->dso->scn[it->sec], it->data);
+
+  if (it->data == NULL)
+    {
+      /* Find out which section contains the next byte.  */
+      it->sec = addr_to_sec (it->dso, it->addr);
+      if (it->sec < 0)
+       return NULL;
+
+      /* Fast-forward to the block that contains ADDR, if any.  */
+      it->sec_offset = it->addr - it->dso->shdr[it->sec].sh_addr;
+      do
+       it->data = elf_getdata (it->dso->scn[it->sec], it->data);
+      while (it->data && it->data->d_off + it->data->d_size <= it->sec_offset);
+    }
+
+  /* Make sure that all the data we want is included in this block.  */
+  if (it->data == NULL
+      || it->data->d_off > it->sec_offset
+      || it->data->d_off + it->data->d_size < it->sec_offset + size)
+    return NULL;
+
+  ptr = (unsigned char *) it->data->d_buf + (it->sec_offset - it->data->d_off);
+  it->sec_offset += size;
+  it->addr += size;
+  return ptr;
+}
+
+/* Read the symbol pointed to by IT into SYM and move IT onto the
+   next symbol.  Return true on success.  */
+
+int
+get_sym_from_iterator (struct data_iterator *it, GElf_Sym *sym)
+{
+  GElf_Addr offset, size;
+  unsigned char *ptr;
+
+  size = gelf_fsize (it->dso->elf, ELF_T_SYM, 1, EV_CURRENT);
+  ptr = get_data_from_iterator (it, size);
+  if (ptr != NULL)
+    {
+      offset = ptr - (unsigned char *) it->data->d_buf;
+      if (offset % size == 0)
+       {
+         gelfx_getsym (it->dso->elf, it->data, offset / size, sym);
+         return 1;
+       }
+    }
+  return 0;
+}
+
+inline uint8_t
+buf_read_u8 (unsigned char *data)
+{
+  return *data;
+}
+
+inline uint16_t
+buf_read_ule16 (unsigned char *data)
+{
+  return data[0] | (data[1] << 8);
+}
+
+inline uint16_t
+buf_read_ube16 (unsigned char *data)
+{
+  return data[1] | (data[0] << 8);
+}
+
+inline uint32_t
+buf_read_ule32 (unsigned char *data)
+{
+  return data[0] | (data[1] << 8) | (data[2] << 16) | (data[3] << 24);
+}
+
+inline uint32_t
+buf_read_ube32 (unsigned char *data)
+{
+  return data[3] | (data[2] << 8) | (data[1] << 16) | (data[0] << 24);
+}
+
+inline uint64_t
+buf_read_ule64 (unsigned char *data)
+{
+  return (data[0] | (data[1] << 8) | (data[2] << 16))
+        | (((uint64_t)data[3]) << 24)
+        | (((uint64_t)data[4]) << 32)
+        | (((uint64_t)data[5]) << 40)
+        | (((uint64_t)data[6]) << 48)
+        | (((uint64_t)data[7]) << 56);
+}
+
+inline uint64_t
+buf_read_ube64 (unsigned char *data)
+{
+  return (data[7] | (data[6] << 8) | (data[5] << 16))
+        | (((uint64_t)data[4]) << 24)
+        | (((uint64_t)data[3]) << 32)
+        | (((uint64_t)data[2]) << 40)
+        | (((uint64_t)data[1]) << 48)
+        | (((uint64_t)data[0]) << 56);
+}
+
+inline void
+buf_write_8 (unsigned char *data, uint8_t val)
+{
+  *data = val;
+}
+
+inline void
+buf_write_le16 (unsigned char *data, uint16_t val)
+{
+  data[0] = val;
+  data[1] = val >> 8;
+}
+
+inline void
+buf_write_be16 (unsigned char *data, uint16_t val)
+{
+  data[1] = val;
+  data[0] = val >> 8;
+}
+
+inline void
+buf_write_le32 (unsigned char *data, uint32_t val)
+{
+  data[0] = val;
+  data[1] = val >> 8;
+  data[2] = val >> 16;
+  data[3] = val >> 24;
+}
+
+inline void
+buf_write_be32 (unsigned char *data, uint32_t val)
+{
+  data[3] = val;
+  data[2] = val >> 8;
+  data[1] = val >> 16;
+  data[0] = val >> 24;
+}
+
+inline void
+buf_write_le64 (unsigned char *data, uint64_t val)
+{
+  data[0] = val;
+  data[1] = val >> 8;
+  data[2] = val >> 16;
+  data[3] = val >> 24;
+  data[4] = val >> 32;
+  data[5] = val >> 40;
+  data[6] = val >> 48;
+  data[7] = val >> 56;
+}
+
+inline void
+buf_write_be64 (unsigned char *data, uint64_t val)
+{
+  data[7] = val;
+  data[6] = val >> 8;
+  data[5] = val >> 16;
+  data[4] = val >> 24;
+  data[3] = val >> 32;
+  data[2] = val >> 40;
+  data[1] = val >> 48;
+  data[0] = val >> 56;
+}
+
+READWRITE(,8)
+READWRITESIZE(16)
+READWRITESIZE(32)
+READWRITESIZE(64)
+
+const char *
+strptr (DSO *dso, int sec, off_t offset)
+{
+  Elf_Scn *scn;
+  Elf_Data *data;
+
+  scn = dso->scn[sec];
+  if (offset >= 0 && offset < dso->shdr[sec].sh_size)
+    {
+      data = NULL;
+      while ((data = elf_getdata (scn, data)) != NULL)
+       {
+         if (data->d_buf
+             && offset >= data->d_off
+             && offset < data->d_off + data->d_size)
+           return (const char *) data->d_buf + (offset - data->d_off);
+       }
+    }
+
+  return NULL;
+}
diff --git a/src/doit.c b/src/doit.c
new file mode 100644 (file)
index 0000000..a289dd7
--- /dev/null
@@ -0,0 +1,254 @@
+/* Copyright (C) 2001, 2003, 2004, 2005, 2007 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <alloca.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <time.h>
+#include <unistd.h>
+#include "prelinktab.h"
+
+struct collect_ents
+  {
+    struct prelink_entry **ents;
+    int nents;
+  };
+
+static int
+find_ents (void **p, void *info)
+{
+  struct collect_ents *l = (struct collect_ents *) info;
+  struct prelink_entry *e = * (struct prelink_entry **) p;
+
+  e->u.tmp = 0;
+  if ((e->type == ET_DYN && e->done == 1)
+      || (e->type == ET_EXEC && e->done == 0 && ! libs_only))
+    l->ents[l->nents++] = e;
+
+  return 1;
+}
+
+static void
+prelink_ent (struct prelink_entry *ent)
+{
+  int i, j;
+  DSO *dso;
+  struct stat64 st;
+  struct prelink_link *hardlink;
+  char *move = NULL;
+  size_t movelen = 0;
+
+  for (i = 0; i < ent->ndepends; ++i)
+    if (ent->depends[i]->done == 1)
+      prelink_ent (ent->depends[i]);
+
+  for (i = 0; i < ent->ndepends; ++i)
+    if (ent->depends[i]->done != 2)
+      {
+       ent->done = 0;
+       if (! undo)
+         ent->type = ET_UNPRELINKABLE;
+       if (verbose)
+         error (0, 0, "Could not prelink %s because its dependency %s could not be prelinked",
+                ent->filename, ent->depends[i]->filename);
+       return;
+      }
+
+  ent->u.tmp = 1;
+  for (i = 0; i < ent->ndepends; ++i)
+    ent->depends[i]->u.tmp = 1;
+  for (i = 0; i < ent->ndepends; ++i)
+    {
+      struct prelink_entry *dent = ent->depends[i];
+      for (j = 0; j < dent->ndepends; ++j)
+       if (dent->depends[j]->u.tmp == 0)
+         {
+           ent->done = 0;
+           if (! undo)
+             ent->type = ET_UNPRELINKABLE;
+           if (verbose)
+             error (0, 0, "Could not prelink %s because it doesn't use %s, but one of its dependencies has been prelinked against it",
+                    ent->filename, dent->depends[j]->filename);
+           ent->u.tmp = 0;
+           for (i = 0; i < ent->ndepends; ++i)
+             ent->depends[i]->u.tmp = 0;
+           return;
+         }
+    }
+  ent->u.tmp = 0;
+  for (i = 0; i < ent->ndepends; ++i)
+    ent->depends[i]->u.tmp = 0;
+
+  if (verbose)
+    {
+      if (dry_run)
+       printf ("Would prelink %s\n", ent->canon_filename);
+      else
+       printf ("Prelinking %s\n", ent->canon_filename);
+    }
+
+  dso = open_dso (ent->canon_filename);
+  if (dso == NULL)
+    goto error_out;
+
+  if (fstat64 (dso->fd, &st) < 0)
+    {
+      error (0, errno, "%s changed during prelinking", ent->filename);
+      goto error_out;
+    }
+
+  if (st.st_dev != ent->dev || st.st_ino != ent->ino)
+    {
+      error (0, 0, "%s changed during prelinking", ent->filename);
+      goto error_out;
+    }
+
+  if (dry_run)
+    close_dso (dso);
+  else
+    {
+      if (prelink_prepare (dso))
+       goto make_unprelinkable;
+      if (ent->type == ET_DYN && relocate_dso (dso, ent->base))
+       goto make_unprelinkable;
+      if (prelink (dso, ent))
+       goto make_unprelinkable;
+      if (update_dso (dso, NULL))
+       {
+         dso = NULL;
+         goto error_out;
+       }
+    }
+  ent->done = 2;
+  ent->flags |= PCF_PRELINKED;
+
+  /* Redo hardlinks.  */
+  for (hardlink = ent->hardlink; hardlink; hardlink = hardlink->next)
+    {
+      size_t len;
+
+      if (lstat64 (hardlink->canon_filename, &st) < 0)
+       {
+         error (0, 0, "Could not stat %s (former hardlink to %s)",
+                hardlink->canon_filename, ent->canon_filename);
+         continue;
+       }
+
+      if (st.st_dev != ent->dev || st.st_ino != ent->ino)
+       {
+         error (0, 0, "%s is no longer hardlink to %s",
+                hardlink->canon_filename, ent->canon_filename);
+         continue;
+       }
+
+      if (verbose)
+       {
+         if (dry_run)
+           printf ("Would link %s to %s\n", hardlink->canon_filename,
+                   ent->canon_filename);
+         else
+           printf ("Linking %s to %s\n", hardlink->canon_filename,
+                   ent->canon_filename);
+       }
+
+      if (dry_run)
+       continue;
+
+      len = strlen (hardlink->canon_filename);
+      if (len + sizeof (".#prelink#") > movelen)
+       {
+         movelen = len + sizeof (".#prelink#");
+         move = realloc (move, movelen);
+         if (move == NULL)
+           {
+             error (0, ENOMEM, "Could not hardlink %s to %s",
+                    hardlink->canon_filename, ent->canon_filename);
+             movelen = 0;
+             continue;
+           }
+       }
+
+      memcpy (mempcpy (move, hardlink->canon_filename, len), ".#prelink#",
+             sizeof (".#prelink#"));
+      if (rename (hardlink->canon_filename, move) < 0)
+       {
+         error (0, errno, "Could not hardlink %s to %s",
+                hardlink->canon_filename, ent->canon_filename);
+         continue;
+       }
+
+      if (link (ent->canon_filename, hardlink->canon_filename) < 0)
+       {
+         error (0, errno, "Could not hardlink %s to %s",
+                hardlink->canon_filename, ent->canon_filename);
+
+         if (rename (move, hardlink->canon_filename) < 0)
+           {
+             error (0, errno, "Could not rename %s back to %s",
+                    move, hardlink->canon_filename);
+           }
+         continue;
+       }
+
+      if (unlink (move) < 0)
+       {
+         error (0, errno, "Could not unlink %s", move);
+         continue;
+       }
+    }
+  free (move);
+
+  if (! dry_run && stat64 (ent->canon_filename, &st) >= 0)
+    {
+      ent->dev = st.st_dev;
+      ent->ino = st.st_ino;
+      ent->ctime = st.st_ctime;
+      ent->mtime = st.st_mtime;
+    }
+  return;
+
+make_unprelinkable:
+  if (! undo)
+    ent->type = ET_UNPRELINKABLE;
+error_out:
+  ent->done = 0;
+  if (dso)
+    close_dso (dso);
+  return;
+}
+
+void
+prelink_all (void)
+{
+  struct collect_ents l;
+  int i;
+
+  l.ents =
+    (struct prelink_entry **) alloca (prelink_entry_count
+                                     * sizeof (struct prelink_entry *));
+  l.nents = 0;
+  htab_traverse (prelink_filename_htab, find_ents, &l);
+
+  for (i = 0; i < l.nents; ++i)
+    if (l.ents[i]->done == 1
+       || (l.ents[i]->done == 0 && l.ents[i]->type == ET_EXEC))
+      prelink_ent (l.ents[i]);
+}
diff --git a/src/dso.c b/src/dso.c
new file mode 100644 (file)
index 0000000..c12997b
--- /dev/null
+++ b/src/dso.c
@@ -0,0 +1,1793 @@
+/* Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <time.h>
+#include <unistd.h>
+#include <utime.h>
+#include "prelink.h"
+
+#if defined HAVE_LIBSELINUX && defined HAVE_SELINUX_SELINUX_H
+#include <selinux/selinux.h>
+#define USE_SELINUX
+#endif
+
+#define RELOCATE_SCN(shf) \
+  ((shf) & (SHF_WRITE | SHF_ALLOC | SHF_EXECINSTR))
+
+#ifndef ELF_F_PERMISSIVE
+# define ELF_F_PERMISSIVE 0
+#endif
+
+void
+read_dynamic (DSO *dso)
+{
+  int i;
+
+  memset (dso->info, 0, sizeof(dso->info));
+  dso->info_set_mask = 0;
+  for (i = 0; i < dso->ehdr.e_shnum; i++)
+    if (dso->shdr[i].sh_type == SHT_DYNAMIC)
+      {
+       Elf_Data *data = NULL;
+       Elf_Scn *scn = dso->scn[i];
+       GElf_Dyn dyn;
+
+       dso->dynamic = i;
+       while ((data = elf_getdata (scn, data)) != NULL)
+         {
+           int ndx, maxndx;
+
+           maxndx = data->d_size / dso->shdr[i].sh_entsize;
+           for (ndx = 0; ndx < maxndx; ++ndx)
+             {
+               gelfx_getdyn (dso->elf, data, ndx, &dyn);
+               if (dyn.d_tag == DT_NULL)
+                 break;
+               else if ((GElf_Xword) dyn.d_tag < DT_NUM)
+                 {
+                   dso->info[dyn.d_tag] = dyn.d_un.d_val;
+                   if (dyn.d_tag < 50)
+                     dso->info_set_mask |= (1ULL << dyn.d_tag);
+                 }
+               else if (dyn.d_tag == DT_CHECKSUM)
+                 {
+                   dso->info_DT_CHECKSUM = dyn.d_un.d_val;
+                   dso->info_set_mask |= (1ULL << DT_CHECKSUM_BIT);
+                 }
+               else if (dyn.d_tag == DT_GNU_PRELINKED)
+                 {
+                   dso->info_DT_GNU_PRELINKED = dyn.d_un.d_val;
+                   dso->info_set_mask |= (1ULL << DT_GNU_PRELINKED_BIT);
+                 }
+               else if (dyn.d_tag == DT_VERDEF)
+                 {
+                   dso->info_DT_VERDEF = dyn.d_un.d_val;
+                   dso->info_set_mask |= (1ULL << DT_VERDEF_BIT);
+                 }
+               else if (dyn.d_tag == DT_VERNEED)
+                 {
+                   dso->info_DT_VERNEED = dyn.d_un.d_val;
+                   dso->info_set_mask |= (1ULL << DT_VERNEED_BIT);
+                 }
+               else if (dyn.d_tag == DT_VERSYM)
+                 {
+                   dso->info_DT_VERSYM = dyn.d_un.d_val;
+                   dso->info_set_mask |= (1ULL << DT_VERSYM_BIT);
+                 }
+               else if (dyn.d_tag == DT_FILTER)
+                 dso->info_set_mask |= (1ULL << DT_FILTER_BIT);
+               else if (dyn.d_tag == DT_AUXILIARY)
+                 dso->info_set_mask |= (1ULL << DT_AUXILIARY_BIT);
+               else if (dyn.d_tag == DT_LOPROC)
+                 dso->info_set_mask |= (1ULL << DT_LOPROC_BIT);
+               else if (dyn.d_tag == DT_GNU_HASH)
+                 {
+                   dso->info_DT_GNU_HASH = dyn.d_un.d_val;
+                   dso->info_set_mask |= (1ULL << DT_GNU_HASH_BIT);
+                 }
+               if (dso->ehdr.e_machine == EM_MIPS)
+                 {
+                   if (dyn.d_tag == DT_MIPS_LOCAL_GOTNO)
+                     dso->info_DT_MIPS_LOCAL_GOTNO = dyn.d_un.d_val;
+                   else if (dyn.d_tag == DT_MIPS_GOTSYM)
+                     dso->info_DT_MIPS_GOTSYM = dyn.d_un.d_val;
+                   else if (dyn.d_tag == DT_MIPS_SYMTABNO)
+                     dso->info_DT_MIPS_SYMTABNO = dyn.d_un.d_val;
+                 }
+             }
+           if (ndx < maxndx)
+             break;
+         }
+      }
+}
+
+int
+set_dynamic (DSO *dso, GElf_Word tag, GElf_Addr value, int fatal)
+{
+  Elf_Data *data;
+  Elf_Scn *scn;
+  GElf_Dyn dyn;
+  int ndx, maxndx;
+  uint64_t mask = dso->info_set_mask;
+
+  assert (dso->shdr[dso->dynamic].sh_type == SHT_DYNAMIC);
+
+  scn = dso->scn[dso->dynamic];
+
+  data = elf_getdata (scn, NULL);
+  assert (elf_getdata (scn, data) == NULL);
+
+  switch (tag)
+    {
+    case DT_CHECKSUM:
+      mask |= (1ULL << DT_CHECKSUM_BIT); break;
+    case DT_GNU_PRELINKED:
+      mask |= (1ULL << DT_GNU_PRELINKED_BIT); break;
+    case DT_VERDEF:
+      mask |= (1ULL << DT_VERDEF_BIT); break;
+    case DT_VERNEED:
+      mask |= (1ULL << DT_VERNEED_BIT); break;
+    case DT_VERSYM:
+      mask |= (1ULL << DT_VERSYM_BIT); break;
+    default:
+      if (tag < DT_NUM && tag < 50)
+       mask |= (1ULL << tag);
+      break;
+    }
+
+  maxndx = data->d_size / dso->shdr[dso->dynamic].sh_entsize;
+  for (ndx = 0; ndx < maxndx; ndx++)
+    {
+      gelfx_getdyn (dso->elf, data, ndx, &dyn);
+      if (dyn.d_tag == DT_NULL)
+       break;
+      else if (dyn.d_tag == tag)
+       {
+         if (dyn.d_un.d_ptr != value)
+           {
+             dyn.d_un.d_ptr = value;
+             gelfx_update_dyn (dso->elf, data, ndx, &dyn);
+             elf_flagscn (scn, ELF_C_SET, ELF_F_DIRTY);
+           }
+
+         return 0;
+       }
+    }
+  assert (ndx < maxndx);
+
+  if (ndx + 1 < maxndx)
+    {
+      /* DT_NULL is not the last dynamic entry.  */
+      gelfx_update_dyn (dso->elf, data, ndx + 1, &dyn);
+      dyn.d_tag = tag;
+      dyn.d_un.d_ptr = value;
+      gelfx_update_dyn (dso->elf, data, ndx, &dyn);
+      dso->info_set_mask = mask;
+      elf_flagscn (scn, ELF_C_SET, ELF_F_DIRTY);
+      return 0;
+    }
+
+  if (fatal)
+    error (0, 0, "%s: Not enough room to add .dynamic entry",
+          dso->filename);
+  return 1;
+}
+
+int
+check_dso (DSO *dso)
+{
+  int i, last = 1;
+
+  /* FIXME: Several routines in prelink and in libelf-0.7.0 too
+     rely on sh_offset's monotonically increasing.  */
+  for (i = 2; i < dso->ehdr.e_shnum; ++i)
+    {
+      if (dso->shdr[last].sh_offset
+         + (dso->shdr[last].sh_type == SHT_NOBITS
+            ? 0 : dso->shdr[last].sh_size) > dso->shdr[i].sh_offset)
+       {
+         if (!dso->permissive
+             || RELOCATE_SCN (dso->shdr[last].sh_flags)
+             || RELOCATE_SCN (dso->shdr[i].sh_flags))
+           {
+             error (0, 0, "%s: section file offsets not monotonically increasing",
+                    dso->filename);
+             return 1;
+           }
+       }
+      if (!dso->permissive
+         || (dso->shdr[i].sh_type != SHT_NOBITS && dso->shdr[i].sh_size != 0))
+       last = i;
+    }
+  return 0;
+}
+
+DSO *
+open_dso (const char *name)
+{
+  int fd;
+
+  fd = open (name, O_RDONLY);
+  if (fd == -1)
+    {
+      error (0, errno, "cannot open \"%s\"", name);
+      return NULL;
+    }
+  return fdopen_dso (fd, name);
+}
+
+/* WARNING: If prelink is ever multi-threaded, this will not work
+   Other alternatives are:
+   1) make section_cmp nested function - trampolines
+      vs. non-exec stack needs to be resolved for it though
+   2) make the variable __thread
+   3) use locking around the qsort
+ */
+static DSO *section_cmp_dso;
+
+static int
+section_cmp (const void *A, const void *B)
+{
+  int *a = (int *) A;
+  int *b = (int *) B;
+  DSO *dso = section_cmp_dso;
+
+  if (dso->shdr[*a].sh_offset < dso->shdr[*b].sh_offset)
+    return -1;
+  if (dso->shdr[*a].sh_offset > dso->shdr[*b].sh_offset)
+    return 1;
+  if (*a < *b)
+    return -1;
+  return *a > *b;
+}
+
+DSO *
+fdopen_dso (int fd, const char *name)
+{
+  Elf *elf = NULL;
+  GElf_Ehdr ehdr;
+  GElf_Addr last_off;
+  int i, j, k, last, *sections, *invsections;
+  DSO *dso = NULL;
+  struct PLArch *plarch;
+  extern struct PLArch __start_pl_arch[], __stop_pl_arch[];
+
+  elf = elf_begin (fd, ELF_C_READ, NULL);
+  if (elf == NULL)
+    {
+      error (0, 0, "cannot open ELF file: %s", elf_errmsg (-1));
+      goto error_out;
+    }
+
+  if (elf_kind (elf) != ELF_K_ELF)
+    {
+      error (0, 0, "\"%s\" is not an ELF file", name);
+      goto error_out;
+    }
+
+  if (gelf_getehdr (elf, &ehdr) == NULL)
+    {
+      error (0, 0, "cannot get the ELF header: %s",
+            elf_errmsg (-1));
+      goto error_out;
+    }
+
+  if (ehdr.e_type != ET_DYN && ehdr.e_type != ET_EXEC)
+    {
+      error (0, 0, "\"%s\" is not a shared library", name);
+      goto error_out;
+    }
+
+  if (ehdr.e_shnum == 0)
+    {
+      GElf_Phdr phdr;
+
+      /* Check for UPX compressed executables.  */
+      if (ehdr.e_type == ET_EXEC
+         && ehdr.e_phnum > 0
+         && (gelf_getphdr (elf, 0, &phdr), phdr.p_type == PT_LOAD)
+         && phdr.p_filesz >= 256
+         && phdr.p_filesz <= 4096
+         && phdr.p_offset == 0
+         && ehdr.e_phoff + ehdr.e_phnum * ehdr.e_phentsize < phdr.p_filesz)
+       {
+         char *buf = alloca (phdr.p_filesz);
+         size_t start = ehdr.e_phoff + ehdr.e_phnum * ehdr.e_phentsize;
+
+         if (pread (fd, buf, phdr.p_filesz, 0) == phdr.p_filesz
+             && memmem (buf + start, phdr.p_filesz - start,
+                        "UPX!", 4) != NULL)
+           {
+             error (0, 0, "\"%s\" is UPX compressed executable", name);
+             goto error_out;
+           }
+       }
+      error (0, 0, "\"%s\" has no section headers", name);
+      goto error_out;
+    }
+
+  /* Allocate DSO structure. Leave place for additional 20 new section
+     headers.  */
+  dso = (DSO *)
+       malloc (sizeof(DSO) + (ehdr.e_shnum + 20) * sizeof(GElf_Shdr)
+               + (ehdr.e_phnum + 1) * sizeof(GElf_Phdr)
+               + (ehdr.e_shnum + 20) * sizeof(Elf_Scn *));
+  if (!dso)
+    {
+      error (0, ENOMEM, "Could not open DSO");
+      goto error_out;
+    }
+
+  elf_flagelf (elf, ELF_C_SET, ELF_F_LAYOUT | ELF_F_PERMISSIVE);
+
+  memset (dso, 0, sizeof(DSO));
+  dso->elf = elf;
+  dso->ehdr = ehdr;
+  dso->phdr = (GElf_Phdr *) &dso->shdr[ehdr.e_shnum + 20];
+  dso->scn = (Elf_Scn **) &dso->phdr[ehdr.e_phnum + 1];
+  switch (ehdr.e_ident[EI_CLASS])
+    {
+    case ELFCLASS32:
+      dso->mask = 0xffffffff; break;
+    case ELFCLASS64:
+      dso->mask = 0xffffffffffffffffULL; break;
+    }
+  for (i = 0; i < ehdr.e_phnum; ++i)
+    gelf_getphdr (elf, i, dso->phdr + i);
+  dso->fd = fd;
+
+  for (i = 0, j = 0; i < ehdr.e_shnum; ++i)
+    {
+      dso->scn[i] = elf_getscn (elf, i);
+      gelfx_getshdr (elf, dso->scn[i], dso->shdr + i);
+      if ((dso->shdr[i].sh_flags & SHF_ALLOC) && dso->shdr[i].sh_type != SHT_NOBITS)
+       j = 1;
+    }
+  if (j == 0)
+    {
+      /* If all ALLOC sections are SHT_NOBITS, then this is a
+        stripped-to-file debuginfo.  Skip it silently.  */
+      goto error_out;
+    }
+
+  sections = (int *) alloca (dso->ehdr.e_shnum * sizeof (int) * 2);
+  sections[0] = 0;
+  for (i = 1, j = 1, k = dso->ehdr.e_shnum, last = -1;
+       i < dso->ehdr.e_shnum; ++i)
+    if (RELOCATE_SCN (dso->shdr[i].sh_flags))
+      {
+       last = i;
+       sections[j++] = i;
+      }
+    else
+      sections[--k] = i;
+  assert (j == k);
+
+  section_cmp_dso = dso;
+  qsort (sections + k, dso->ehdr.e_shnum - k, sizeof (*sections), section_cmp);
+  invsections = sections + dso->ehdr.e_shnum;
+  invsections[0] = 0;
+  for (i = 1, j = 0; i < ehdr.e_shnum; ++i)
+    {
+      if (i != sections[i])
+       {
+         j = 1;
+         dso->scn[i] = elf_getscn (elf, sections[i]);
+         gelfx_getshdr (elf, dso->scn[i], dso->shdr + i);
+       }
+      invsections[sections[i]] = i;
+    }
+
+  if (j)
+    {
+      dso->move = init_section_move (dso);
+      if (dso->move == NULL)
+       goto error_out;
+      memcpy (dso->move->old_to_new, invsections, dso->ehdr.e_shnum * sizeof (int));
+      memcpy (dso->move->new_to_old, sections, dso->ehdr.e_shnum * sizeof (int));
+    }
+
+  last_off = 0;
+  for (i = 1; i < ehdr.e_shnum; ++i)
+    {
+      if (dso->shdr[i].sh_link >= ehdr.e_shnum)
+       {
+         error (0, 0, "%s: bogus sh_link value %d", name,
+                dso->shdr[i].sh_link);
+         goto error_out;
+       }
+      dso->shdr[i].sh_link = invsections[dso->shdr[i].sh_link];
+      if (dso->shdr[i].sh_type == SHT_REL
+         || dso->shdr[i].sh_type == SHT_RELA
+         || (dso->shdr[i].sh_flags & SHF_INFO_LINK))
+       {
+         if (dso->shdr[i].sh_info >= ehdr.e_shnum)
+           {
+             error (0, 0, "%s: bogus sh_info value %d", name,
+                    dso->shdr[i].sh_info);
+             goto error_out;
+           }
+         dso->shdr[i].sh_info = invsections[dso->shdr[i].sh_info];
+       }
+
+      /* Some linkers mess up sh_offset fields for empty or nobits
+        sections.  */
+      if (RELOCATE_SCN (dso->shdr[i].sh_flags)
+         && (dso->shdr[i].sh_size == 0
+             || dso->shdr[i].sh_type == SHT_NOBITS))
+       {
+         for (j = i + 1; j < ehdr.e_shnum; ++j)
+           if (! RELOCATE_SCN (dso->shdr[j].sh_flags))
+             break;
+           else if (dso->shdr[j].sh_size != 0
+                    && dso->shdr[j].sh_type != SHT_NOBITS)
+             break;
+         dso->shdr[i].sh_offset = (last_off + dso->shdr[i].sh_addralign - 1)
+                                  & ~(dso->shdr[i].sh_addralign - 1);
+         if (j < ehdr.e_shnum
+             && dso->shdr[i].sh_offset > dso->shdr[j].sh_offset)
+           {
+             GElf_Addr k;
+
+             for (k = dso->shdr[i].sh_addralign - 1; k; )
+               {
+                 k >>= 1;
+                 dso->shdr[i].sh_offset = (last_off + k) & ~k;
+                 if (dso->shdr[i].sh_offset <= dso->shdr[j].sh_offset)
+                   break;
+               }
+           }
+         last_off = dso->shdr[i].sh_offset;
+       }
+      else
+       last_off = dso->shdr[i].sh_offset + dso->shdr[i].sh_size;
+    }
+  dso->ehdr.e_shstrndx = invsections[dso->ehdr.e_shstrndx];
+
+  for (plarch = __start_pl_arch; plarch < __stop_pl_arch; plarch++)
+    if (plarch->class == ehdr.e_ident[EI_CLASS]
+       && (plarch->machine == ehdr.e_machine
+           || plarch->alternate_machine[0] == ehdr.e_machine
+           || plarch->alternate_machine[1] == ehdr.e_machine
+           || plarch->alternate_machine[2] == ehdr.e_machine))
+      break;
+
+  if (plarch == __stop_pl_arch || ehdr.e_machine == EM_NONE)
+    {
+      error (0, 0, "\"%s\"'s architecture is not supported", name);
+      goto error_out;
+    }
+
+  dso->arch = plarch;
+
+  dso->base = ~(GElf_Addr) 0;
+  dso->align = 0;
+  dso->end = 0;
+  for (i = 0; i < dso->ehdr.e_phnum; i++)
+    if (dso->phdr[i].p_type == PT_LOAD)
+      {
+       GElf_Addr base, end;
+
+       if (dso->phdr[i].p_align > dso->align)
+         dso->align = dso->phdr[i].p_align;
+       base = dso->phdr[i].p_vaddr & ~(dso->phdr[i].p_align - 1);
+       end = dso->phdr[i].p_vaddr + dso->phdr[i].p_memsz;
+       if (base < dso->base)
+         dso->base = base;
+       if (end > dso->end)
+         dso->end = end;
+      }
+
+  if (dso->base == ~(GElf_Addr) 0)
+    {
+      error (0, 0, "%s: cannot find loadable segment", name);
+      goto error_out;
+    }
+
+  read_dynamic (dso);
+
+  dso->filename = (const char *) strdup (name);
+  dso->soname = dso->filename;
+  if (dso->info[DT_STRTAB] && dso->info[DT_SONAME])
+    {
+      const char *soname;
+
+      soname = get_data (dso, dso->info[DT_STRTAB] + dso->info[DT_SONAME],
+                        NULL);
+      if (soname && soname[0] != '\0')
+       dso->soname = (const char *) strdup (soname);
+    }
+
+  if (dso->arch->machine == EM_ALPHA
+      || dso->arch->machine == EM_MIPS)
+    for (i = 1; i < ehdr.e_shnum; ++i)
+      {
+       if ((dso->shdr[i].sh_type == SHT_ALPHA_DEBUG
+            && dso->arch->machine == EM_ALPHA)
+           || (dso->shdr[i].sh_type == SHT_MIPS_DEBUG
+               && dso->arch->machine == EM_MIPS))
+         {
+           const char *name
+             = strptr (dso, dso->ehdr.e_shstrndx, dso->shdr[i].sh_name);
+           if (! strcmp (name, ".mdebug"))
+             dso->mdebug_orig_offset = dso->shdr[i].sh_offset;
+           break;
+         }
+      }
+
+  return dso;
+
+error_out:
+  if (dso)
+    {
+      free (dso->move);
+      if (dso->soname != dso->filename)
+       free ((char *) dso->soname);
+      free ((char *) dso->filename);
+      free (dso);
+    }
+  if (elf)
+    elf_end (elf);
+  if (fd != -1)
+    close (fd);
+  return NULL;
+}
+
+static int
+adjust_symtab_section_indices (DSO *dso, int n, int old_shnum, int *old_to_new)
+{
+  Elf_Data *data = NULL;
+  Elf_Scn *scn = dso->scn[n];
+  GElf_Sym sym;
+  int changed = 0, ndx, maxndx;
+
+  while ((data = elf_getdata (scn, data)) != NULL)
+    {
+      maxndx = data->d_size / dso->shdr[n].sh_entsize;
+      for (ndx = 0; ndx < maxndx; ++ndx)
+       {
+         gelfx_getsym (dso->elf, data, ndx, &sym);
+         if (sym.st_shndx > SHN_UNDEF && sym.st_shndx < SHN_LORESERVE)
+           {
+             if (sym.st_shndx >= old_shnum
+                 || old_to_new[sym.st_shndx] == -1)
+               {
+                 if (! sym.st_size &&
+                     sym.st_info == ELF32_ST_INFO (STB_LOCAL, STT_SECTION))
+                   {
+                     sym.st_value = 0;
+                     sym.st_shndx = SHN_UNDEF;
+                     gelfx_update_sym (dso->elf, data, ndx, &sym);
+                     changed = 1;
+                     continue;
+                   }
+                 else
+                   {
+                     if (sym.st_shndx >= old_shnum)
+                       {
+                         error (0, 0, "%s: Symbol section index outside of section numbers",
+                                dso->filename);
+                         return 1;
+                       }
+                     error (0, 0, "%s: Section symbol points into has been removed",
+                            dso->filename);
+                     return 1;
+                   }
+               }
+             if (old_to_new[sym.st_shndx] != sym.st_shndx)
+               {
+                 changed = 1;
+                 sym.st_shndx = old_to_new[sym.st_shndx];
+                 gelfx_update_sym (dso->elf, data, ndx, &sym);
+               }
+           }
+       }
+    }
+
+  if (changed)
+    elf_flagscn (scn, ELF_C_SET, ELF_F_DIRTY);
+
+  return 0;
+}
+
+static int
+set_stt_section_values (DSO *dso, int n)
+{
+  Elf_Data *data;
+  Elf_Scn *scn = dso->scn[n];
+  GElf_Sym sym;
+  int ndx, maxndx, sec;
+  char seen[dso->ehdr.e_shnum];
+
+  memset (seen, 0, dso->ehdr.e_shnum);
+  data = elf_getdata (scn, NULL);
+  assert (data != NULL);
+  assert (elf_getdata (scn, data) == NULL);
+  assert (data->d_off == 0);
+
+  maxndx = data->d_size / dso->shdr[n].sh_entsize;
+  gelfx_getsym (dso->elf, data, 0, &sym);
+  if (sym.st_info != ELF32_ST_INFO (STB_LOCAL, STT_NOTYPE)
+      || sym.st_size != 0 || sym.st_other != 0
+      || sym.st_value != 0 || sym.st_shndx != SHN_UNDEF
+      || sym.st_name != 0)
+    return 0;
+
+  for (ndx = 1; ndx < maxndx; ++ndx)
+    {
+      gelfx_getsym (dso->elf, data, ndx, &sym);
+      if (sym.st_info == ELF32_ST_INFO (STB_LOCAL, STT_SECTION)
+         && sym.st_size == 0 && sym.st_other == 0
+         && sym.st_name == 0)
+       {
+         if (sym.st_shndx > SHN_UNDEF && sym.st_shndx < SHN_LORESERVE)
+           {
+             seen[sym.st_shndx] = 1;
+             sym.st_value = dso->shdr[sym.st_shndx].sh_addr;
+             gelfx_update_sym (dso->elf, data, ndx, &sym);
+           }
+       }
+      else
+       break;
+    }
+
+  for (ndx = 1, sec = 1; ndx < maxndx; ++ndx)
+    {
+      gelfx_getsym (dso->elf, data, ndx, &sym);
+      if (sym.st_info == ELF32_ST_INFO (STB_LOCAL, STT_SECTION)
+         && sym.st_size == 0 && sym.st_other == 0
+         && sym.st_name == 0)
+       {
+         if (sym.st_shndx == SHN_UNDEF)
+           {
+             while (sec < dso->ehdr.e_shnum && seen[sec])
+               ++sec;
+
+             if (sec >= dso->ehdr.e_shnum)
+               sym.st_value = 0;
+             else
+               sym.st_value = dso->shdr[sec].sh_addr;
+             sym.st_shndx = sec++;
+             gelfx_update_sym (dso->elf, data, ndx, &sym);
+           }
+       }
+      else
+       break;
+    }
+
+  return 0;
+}
+
+struct section_move *
+init_section_move (DSO *dso)
+{
+  struct section_move *move;
+  int i;
+
+  move = malloc (sizeof (struct section_move)
+                + (dso->ehdr.e_shnum * 2 + 20) * sizeof (int));
+  if (move == NULL)
+    {
+      error (0, ENOMEM, "%s: Could not move sections", dso->filename);
+      return move;
+    }
+  move->old_shnum = dso->ehdr.e_shnum;
+  move->new_shnum = dso->ehdr.e_shnum;
+  move->old_to_new = (int *)(move + 1);
+  move->new_to_old = move->old_to_new + move->new_shnum;
+  for (i = 0; i < move->new_shnum; i++)
+    {
+      move->old_to_new[i] = i;
+      move->new_to_old[i] = i;
+    }
+  return move;
+}
+
+void
+add_section (struct section_move *move, int sec)
+{
+  int i;
+
+  assert (move->new_shnum < move->old_shnum + 20);
+  assert (sec <= move->new_shnum);
+
+  memmove (move->new_to_old + sec + 1, move->new_to_old + sec,
+          (move->new_shnum - sec) * sizeof (int));
+  ++move->new_shnum;
+  move->new_to_old[sec] = -1;
+  for (i = 1; i < move->old_shnum; i++)
+    if (move->old_to_new[i] >= sec)
+      ++move->old_to_new[i];
+}
+
+void
+remove_section (struct section_move *move, int sec)
+{
+  int i;
+
+  assert (sec < move->new_shnum);
+
+  memmove (move->new_to_old + sec, move->new_to_old + sec + 1,
+          (move->new_shnum - sec - 1) * sizeof (int));
+  --move->new_shnum;
+  for (i = 1; i < move->old_shnum; i++)
+    if (move->old_to_new[i] == sec)
+      move->old_to_new[i] = -1;
+    else if (move->old_to_new[i] > sec)
+      --move->old_to_new[i];
+}
+
+int
+reopen_dso (DSO *dso, struct section_move *move, const char *temp_base)
+{
+  char filename[strlen (temp_base ? temp_base : dso->filename)
+               + sizeof ("/dev/shm/.#prelink#.XXXXXX")];
+  int adddel = 0;
+  int free_move = 0;
+  Elf *elf = NULL;
+  GElf_Ehdr ehdr;
+  char *e_ident;
+  int fd, i, j;
+
+  if (move == NULL)
+    {
+      move = init_section_move (dso);
+      if (move == NULL)
+       return 1;
+      free_move = 1;
+    }
+  else
+    assert (dso->ehdr.e_shnum == move->old_shnum);
+
+  if (temp_base == NULL)
+    temp_base = dso->filename;
+  sprintf (filename, "%s.#prelink#.XXXXXX", temp_base);
+
+  fd = mkstemp (filename);
+  if (fd == -1)
+    {
+      strcpy (filename, "/tmp/#prelink#.XXXXXX");
+      fd = mkstemp (filename);
+      if (fd == -1)
+       {
+         strcpy (filename, "/dev/shm/#prelink#.XXXXXX");
+         fd = mkstemp (filename);
+       }
+      if (fd == -1)
+       {
+         error (0, errno, "Could not create temporary file %s", filename);
+         goto error_out;
+       }
+    }
+
+  elf = elf_begin (fd, ELF_C_WRITE, NULL);
+  if (elf == NULL)
+    {
+      error (0, 0, "cannot open ELF file: %s", elf_errmsg (-1));
+      goto error_out;
+
+    }
+
+  /* Some gelf_newehdr implementations don't return the resulting
+     ElfNN_Ehdr, so we have to do it the hard way instead of:
+     e_ident = (char *) gelf_newehdr (elf, gelf_getclass (dso->elf));  */
+  switch (gelf_getclass (dso->elf))
+    {
+    case ELFCLASS32:
+      e_ident = (char *) elf32_newehdr (elf);
+      break;
+    case ELFCLASS64:
+      e_ident = (char *) elf64_newehdr (elf);
+      break;
+    default:
+      e_ident = NULL;
+      break;
+    }
+
+  if (e_ident == NULL
+      /* This is here just for the gelfx wrapper, so that gelf_update_ehdr
+        already has the correct ELF class.  */
+      || memcpy (e_ident, dso->ehdr.e_ident, EI_NIDENT) == NULL
+      || gelf_update_ehdr (elf, &dso->ehdr) == 0
+      || gelf_newphdr (elf, dso->ehdr.e_phnum) == 0)
+    {
+      error (0, 0, "Could not create new ELF headers");
+      goto error_out;
+    }
+  ehdr = dso->ehdr;
+  elf_flagelf (elf, ELF_C_SET, ELF_F_LAYOUT | ELF_F_PERMISSIVE);
+  for (i = 0; i < ehdr.e_phnum; ++i)
+    gelf_update_phdr (elf, i, dso->phdr + i);
+
+  for (i = 1; i < move->new_shnum; ++i)
+    {
+      Elf_Scn *scn;
+      Elf_Data data, *data1, *data2;
+
+      if (move->new_to_old[i] == -1)
+       {
+         scn = elf_newscn (elf);
+         elf_newdata (scn);
+       }
+      else
+       {
+         j = move->new_to_old[i];
+         scn = elf_newscn (elf);
+         gelfx_update_shdr (elf, scn, &dso->shdr[j]);
+         if (dso->shdr[j].sh_type == SHT_NOBITS)
+           {
+              data1 = elf_getdata (dso->scn[j], NULL);
+              data2 = elf_newdata (scn);
+              memcpy (data2, data1, sizeof (*data1));
+           }
+         else
+           {
+             memset (&data, 0, sizeof data);
+             data.d_type = ELF_T_NUM;
+             data1 = NULL;
+             while ((data1 = elf_getdata (dso->scn[j], data1))
+                    != NULL)
+               {
+                 if (data.d_type == ELF_T_NUM)
+                   data = *data1;
+                 else if (data.d_type != data1->d_type
+                          || data.d_version != data1->d_version)
+                   abort ();
+                 else
+                   {
+                     if (data1->d_off < data.d_off)
+                       {
+                         data.d_size += data.d_off - data1->d_off;
+                         data.d_off = data1->d_off;
+                       }
+                     if (data1->d_off + data1->d_size
+                         > data.d_off + data.d_size)
+                       data.d_size = data1->d_off + data1->d_size
+                                     - data.d_off;
+                     if (data1->d_align > data.d_align)
+                       data.d_align = data1->d_align;
+                   }
+               }
+             if (data.d_type == ELF_T_NUM)
+               {
+                 assert (dso->shdr[j].sh_size == 0);
+                 continue;
+               }
+             if (data.d_size != 0)
+               {
+                 data.d_buf = calloc (1, data.d_size);
+                 if (data.d_buf == NULL)
+                   {
+                     error (0, ENOMEM, "%s: Could not copy section",
+                            dso->filename);
+                     goto error_out;
+                   }
+               }
+             else
+               data.d_buf = NULL;
+             data1 = NULL;
+             while ((data1 = elf_getdata (dso->scn[j], data1))
+                    != NULL)
+               memcpy (data.d_buf + data1->d_off - data.d_off, data1->d_buf,
+                       data1->d_size);
+             data2 = elf_newdata (scn);
+             memcpy (data2, &data, sizeof (data));
+           }
+       }
+    }
+
+  ehdr.e_shnum = move->new_shnum;
+  dso->temp_filename = strdup (filename);
+  if (dso->temp_filename == NULL)
+    {
+      error (0, ENOMEM, "%s: Could not save temporary filename", dso->filename);
+      goto error_out;
+    }
+  dso->elfro = dso->elf;
+  dso->elf = elf;
+  dso->fdro = dso->fd;
+  dso->fd = fd;
+  dso->ehdr = ehdr;
+  dso->lastscn = 0;
+  elf = NULL;
+  fd = -1;
+  for (i = 1; i < move->old_shnum; i++)
+    if (move->old_to_new[i] != i)
+      {
+       adddel = 1;
+       break;
+      }
+  if (! adddel)
+    for (i = 1; i < move->new_shnum; i++)
+      if (move->new_to_old[i] != i)
+       {
+         adddel = 1;
+         break;
+       }
+
+  for (i = 1; i < move->new_shnum; i++)
+    {
+      dso->scn[i] = elf_getscn (dso->elf, i);
+      gelfx_getshdr (dso->elf, dso->scn[i], dso->shdr + i);
+      if (move->new_to_old[i] == -1)
+       continue;
+      if (dso->move
+         && (dso->shdr[i].sh_type == SHT_SYMTAB
+             || dso->shdr[i].sh_type == SHT_DYNSYM))
+       {
+         if (adjust_symtab_section_indices (dso, i, dso->move->old_shnum,
+                                            dso->move->old_to_new))
+           goto error_out;
+       }
+      if (adddel)
+       {
+         if (dso->shdr[i].sh_link)
+           {
+             if (dso->shdr[i].sh_link >= move->old_shnum)
+               {
+                 error (0, 0, "%s: bogus sh_link value %d", dso->filename,
+                        dso->shdr[i].sh_link);
+                 goto error_out;
+               }
+             if (move->old_to_new[dso->shdr[i].sh_link] == -1)
+               {
+                 error (0, 0, "Section sh_link points to has been removed");
+                 goto error_out;
+               }
+             dso->shdr[i].sh_link = move->old_to_new[dso->shdr[i].sh_link];
+           }
+         /* Only some section types use sh_info for section index.  */
+         if (dso->shdr[i].sh_info
+             && (dso->shdr[i].sh_type == SHT_REL
+                 || dso->shdr[i].sh_type == SHT_RELA
+                 || (dso->shdr[i].sh_flags & SHF_INFO_LINK)))
+           {
+             if (dso->shdr[i].sh_info >= move->old_shnum)
+               {
+                 error (0, 0, "%s: bogus sh_info value %d", dso->filename,
+                        dso->shdr[i].sh_info);
+                 goto error_out;
+               }
+             if (move->old_to_new[dso->shdr[i].sh_info] == -1)
+               {
+                 error (0, 0, "Section sh_info points to has been removed");
+                 goto error_out;
+               }
+             dso->shdr[i].sh_info = move->old_to_new[dso->shdr[i].sh_info];
+           }
+         if (dso->shdr[i].sh_type == SHT_SYMTAB
+             || dso->shdr[i].sh_type == SHT_DYNSYM)
+           {
+             if (adjust_symtab_section_indices (dso, i, move->old_shnum,
+                                                move->old_to_new))
+               goto error_out;
+           }
+       }
+    }
+
+  free (dso->move);
+  dso->move = NULL;
+
+  dso->ehdr.e_shstrndx = move->old_to_new[dso->ehdr.e_shstrndx];
+  gelf_update_ehdr (dso->elf, &dso->ehdr);
+
+  read_dynamic (dso);
+
+  /* If shoff does not point after last section, we need to adjust the sections
+     after it if we added or removed some sections.  */
+  if (move->old_shnum != move->new_shnum
+      && adjust_dso_nonalloc (dso, 0, dso->ehdr.e_shoff + 1,
+                             ((long) move->new_shnum - (long) move->old_shnum)
+                             * gelf_fsize (dso->elf, ELF_T_SHDR, 1,
+                                           EV_CURRENT)))
+    goto error_out;
+
+  if (free_move)
+    free (move);
+  return 0;
+
+error_out:
+  if (free_move)
+    free (move);
+  if (elf)
+    elf_end (elf);
+  if (fd != -1)
+    {
+      unlink (filename);
+      close (fd);
+    }
+  return 1;
+}
+
+/* Return true if the value of symbol SYM, which belongs to DSO,
+   should be treated as an address within the DSO, and should
+   therefore track DSO's relocations.  */
+
+int
+adjust_symbol_p (DSO *dso, GElf_Sym *sym)
+{
+  if (sym->st_shndx == SHN_ABS
+      && sym->st_value != 0
+      && GELF_ST_TYPE (sym->st_info) <= STT_FUNC)
+    /* This is problematic.  How do we find out if
+       we should relocate this?  Assume we should.  */
+    return 1;
+
+  /* If a MIPS object does not define a symbol, but has a lazy binding
+     stub for it, st_value will point to that stub.  Note that unlike
+     other targets, these stub addresses never participate in symbol
+     lookup; the stubs can only be called by the object that defines them.
+     st_values are only used in this way so that the associated GOT entry
+     can store a Quickstart value without losing the original stub
+     address.  */
+  if (dso->ehdr.e_machine == EM_MIPS
+      && sym->st_shndx == SHN_UNDEF
+      && sym->st_value != 0)
+    return 1;
+
+  return (sym->st_shndx > SHN_UNDEF
+         && sym->st_shndx < dso->ehdr.e_shnum
+         && ELF32_ST_TYPE (sym->st_info) != STT_TLS
+         && RELOCATE_SCN (dso->shdr[sym->st_shndx].sh_flags));
+}
+
+static int
+adjust_symtab (DSO *dso, int n, GElf_Addr start, GElf_Addr adjust)
+{
+  Elf_Data *data = NULL;
+  Elf_Scn *scn = dso->scn[n];
+  GElf_Sym sym;
+  int ndx, maxndx;
+
+  while ((data = elf_getdata (scn, data)) != NULL)
+    {
+      maxndx = data->d_size / dso->shdr[n].sh_entsize;
+      for (ndx = 0; ndx < maxndx; ++ndx)
+       {
+         gelfx_getsym (dso->elf, data, ndx, &sym);
+         if (adjust_symbol_p (dso, &sym) && sym.st_value >= start)
+           {
+             sym.st_value += adjust;
+             gelfx_update_sym (dso->elf, data, ndx, &sym);
+           }
+       }
+    }
+
+  elf_flagscn (scn, ELF_C_SET, ELF_F_DIRTY);
+  return 0;
+}
+
+int
+dso_is_rdwr (DSO *dso)
+{
+  return dso->elfro != NULL;
+}
+
+GElf_Addr
+adjust_old_to_new (DSO *dso, GElf_Addr addr)
+{
+  int i;
+
+  if (dso->adjust == NULL)
+    return addr; /* Fast path.  */
+
+  for (i = 0; i < dso->nadjust; i++)
+    if (addr >= dso->adjust[i].start)
+      {
+       addr += dso->adjust[i].adjust;
+       assert (dso->ehdr.e_ident[EI_CLASS] != ELFCLASS32
+               || addr == (Elf32_Addr) addr);
+       return addr;
+      }
+
+  return addr;
+}
+
+GElf_Addr
+adjust_new_to_old (DSO *dso, GElf_Addr addr)
+{
+  int i;
+
+  if (dso->adjust == NULL)
+    return addr; /* Fast path.  */
+
+  for (i = 0; i < dso->nadjust; i++)
+    if (addr >= dso->adjust[i].start + dso->adjust[i].adjust)
+      {
+       addr -= dso->adjust[i].adjust;
+       assert (dso->ehdr.e_ident[EI_CLASS] != ELFCLASS32
+               || addr == (Elf32_Addr) addr);
+       return addr;
+      }
+
+  return addr;
+}
+
+static int
+adjust_dynamic (DSO *dso, int n, GElf_Addr start, GElf_Addr adjust)
+{
+  Elf_Data *data = NULL;
+  Elf_Scn *scn = dso->scn[n];
+  GElf_Dyn dyn;
+  int ndx, maxndx;
+
+  while ((data = elf_getdata (scn, data)) != NULL)
+    {
+      maxndx = data->d_size / dso->shdr[n].sh_entsize;
+      for (ndx = 0; ndx < maxndx; ++ndx)
+       {
+         gelfx_getdyn (dso->elf, data, ndx, &dyn);
+         if (dso->arch->adjust_dyn (dso, n, &dyn, start, adjust) == 0)
+           switch (dyn.d_tag)
+             {
+             case DT_REL:
+             case DT_RELA:
+               /* On some arches DT_REL* may be 0 indicating no relocations
+                  (if DT_REL*SZ is also 0).  Don't adjust it in that case.  */
+               if (dyn.d_un.d_ptr && dyn.d_un.d_ptr >= start)
+                 {
+                   dyn.d_un.d_ptr += adjust;
+                   gelfx_update_dyn (dso->elf, data, ndx, &dyn);
+                 }
+               break;
+             default:
+               if (dyn.d_tag < DT_ADDRRNGLO || dyn.d_tag > DT_ADDRRNGHI)
+                 break;
+               /* FALLTHROUGH */
+             case DT_INIT:
+             case DT_FINI:
+             case DT_HASH:
+             case DT_STRTAB:
+             case DT_SYMTAB:
+             case DT_JMPREL:
+             case DT_INIT_ARRAY:
+             case DT_FINI_ARRAY:
+             case DT_PREINIT_ARRAY:
+             case DT_VERDEF:
+             case DT_VERNEED:
+             case DT_VERSYM:
+             case DT_PLTGOT:
+               if (dyn.d_un.d_ptr >= start)
+                 {
+                   dyn.d_un.d_ptr += adjust;
+                   gelfx_update_dyn (dso->elf, data, ndx, &dyn);
+                 }
+               break;
+             }
+         else
+           gelfx_update_dyn (dso->elf, data, ndx, &dyn);
+       }
+    }
+
+  elf_flagscn (scn, ELF_C_SET, ELF_F_DIRTY);
+
+  /* Update the cached dynamic info as well.  */
+  read_dynamic (dso);
+  return 0;
+}
+
+int
+addr_to_sec (DSO *dso, GElf_Addr addr)
+{
+  GElf_Shdr *shdr;
+  int i;
+
+  shdr = &dso->shdr[dso->lastscn];
+  for (i = -1; i < dso->ehdr.e_shnum; shdr = &dso->shdr[++i])
+    if (RELOCATE_SCN (shdr->sh_flags)
+       && shdr->sh_addr <= addr && shdr->sh_addr + shdr->sh_size > addr
+       && (shdr->sh_type != SHT_NOBITS || (shdr->sh_flags & SHF_TLS) == 0))
+      {
+       if (i != -1)
+         dso->lastscn = i;
+       return dso->lastscn;
+      }
+
+  return -1;
+}
+
+static int
+adjust_rel (DSO *dso, int n, GElf_Addr start, GElf_Addr adjust)
+{
+  Elf_Data *data = NULL;
+  Elf_Scn *scn = dso->scn[n];
+  GElf_Rel rel;
+  int sec, ndx, maxndx;
+
+  while ((data = elf_getdata (scn, data)) != NULL)
+    {
+      maxndx = data->d_size / dso->shdr[n].sh_entsize;
+      for (ndx = 0; ndx < maxndx; ++ndx)
+       {
+         gelfx_getrel (dso->elf, data, ndx, &rel);
+         sec = addr_to_sec (dso, rel.r_offset);
+         if (sec == -1)
+           continue;
+
+         dso->arch->adjust_rel (dso, &rel, start, adjust);
+         addr_adjust (rel.r_offset, start, adjust);
+         gelfx_update_rel (dso->elf, data, ndx, &rel);
+       }
+    }
+
+  elf_flagscn (scn, ELF_C_SET, ELF_F_DIRTY);
+  return 0;
+}
+
+static int
+adjust_rela (DSO *dso, int n, GElf_Addr start, GElf_Addr adjust)
+{
+  Elf_Data *data = NULL;
+  Elf_Scn *scn = dso->scn[n];
+  GElf_Rela rela;
+  int sec, ndx, maxndx;
+
+  while ((data = elf_getdata (scn, data)) != NULL)
+    {
+      maxndx = data->d_size / dso->shdr[n].sh_entsize;
+      for (ndx = 0; ndx < maxndx; ++ndx)
+       {
+         gelfx_getrela (dso->elf, data, ndx, &rela);
+         sec = addr_to_sec (dso, rela.r_offset);
+         if (sec == -1)
+           continue;
+
+         dso->arch->adjust_rela (dso, &rela, start, adjust);
+         addr_adjust (rela.r_offset, start, adjust);
+         gelfx_update_rela (dso->elf, data, ndx, &rela);
+       }
+    }
+
+  elf_flagscn (scn, ELF_C_SET, ELF_F_DIRTY);
+  return 0;
+}
+
+int
+adjust_nonalloc (DSO *dso, GElf_Ehdr *ehdr, GElf_Shdr *shdr, int first,
+                GElf_Addr start, GElf_Addr adjust)
+{
+  int i;
+
+  for (i = 1; i < ehdr->e_shnum; i++)
+    {
+      if (RELOCATE_SCN (shdr[i].sh_flags) || shdr[i].sh_type == SHT_NULL)
+       continue;
+
+      if ((shdr[i].sh_offset > start
+          || (shdr[i].sh_offset == start && i >= first))
+         && (adjust & (shdr[i].sh_addralign - 1)))
+       adjust = (adjust + shdr[i].sh_addralign - 1)
+                & ~(shdr[i].sh_addralign - 1);
+    }
+
+  if (ehdr->e_shoff >= start)
+    {
+      GElf_Addr shdralign = gelf_fsize (dso->elf, ELF_T_ADDR, 1, EV_CURRENT);
+
+      if (adjust & (shdralign - 1))
+       adjust = (adjust + shdralign - 1) & ~(shdralign - 1);
+      ehdr->e_shoff += adjust;
+    }
+
+  for (i = 1; i < ehdr->e_shnum; i++)
+    {
+      if (RELOCATE_SCN (shdr[i].sh_flags) || shdr[i].sh_type == SHT_NULL)
+       continue;
+
+      if (shdr[i].sh_offset > start
+         || (shdr[i].sh_offset == start && i >= first))
+       shdr[i].sh_offset += adjust;
+    }
+  return 0;
+}
+
+int
+adjust_dso_nonalloc (DSO *dso, int first, GElf_Addr start, GElf_Addr adjust)
+{
+  return adjust_nonalloc (dso, &dso->ehdr, dso->shdr, first, start, adjust);
+}
+
+/* Add ADJUST to all addresses above START.  */
+int
+adjust_dso (DSO *dso, GElf_Addr start, GElf_Addr adjust)
+{
+  int i;
+
+  if (dso->arch->arch_adjust
+      && dso->arch->arch_adjust (dso, start, adjust))
+    return 1;
+
+  if (dso->ehdr.e_entry >= start)
+    {
+      dso->ehdr.e_entry += adjust;
+      gelf_update_ehdr (dso->elf, &dso->ehdr);
+      elf_flagehdr (dso->elf, ELF_C_SET, ELF_F_DIRTY);
+    }
+
+  for (i = 0; i < dso->ehdr.e_phnum; i++)
+    {
+      /* Leave STACK segment alone, it has
+        p_vaddr == p_paddr == p_offset == p_filesz == p_memsz == 0.  */
+      if (dso->phdr[i].p_type == PT_GNU_STACK)
+       continue;
+      if (! start)
+       {
+         dso->phdr[i].p_vaddr += adjust;
+         dso->phdr[i].p_paddr += adjust;
+       }
+      else if (start <= dso->phdr[i].p_vaddr)
+       {
+         dso->phdr[i].p_vaddr += adjust;
+         dso->phdr[i].p_paddr += adjust;
+         dso->phdr[i].p_offset += adjust;
+       }
+      else if (start < dso->phdr[i].p_vaddr + dso->phdr[i].p_filesz)
+       {
+         dso->phdr[i].p_filesz += adjust;
+         dso->phdr[i].p_memsz += adjust;
+       }
+      else if (start < dso->phdr[i].p_vaddr + dso->phdr[i].p_memsz)
+       dso->phdr[i].p_memsz += adjust;
+      else
+       continue;
+      if (dso->phdr[i].p_type == PT_LOAD
+         && (dso->phdr[i].p_vaddr - dso->phdr[i].p_offset)
+            % dso->phdr[i].p_align)
+       {
+         error (0, 0, "%s: PT_LOAD %08llx %08llx 0x%x would be not properly aligned",
+                dso->filename, (long long) dso->phdr[i].p_offset,
+                (long long) dso->phdr[i].p_vaddr, (int) dso->phdr[i].p_align);
+         return 1;
+       }
+      gelf_update_phdr (dso->elf, i, dso->phdr + i);
+    }
+  elf_flagphdr (dso->elf, ELF_C_SET, ELF_F_DIRTY);
+
+  for (i = 1; i < dso->ehdr.e_shnum; i++)
+    {
+      const char *name;
+
+      if (dso->arch->adjust_section)
+       {
+         int ret = dso->arch->adjust_section (dso, i, start, adjust);
+
+         if (ret == 1)
+           return 1;
+         else if (ret)
+           continue;
+       }
+      switch (dso->shdr[i].sh_type)
+       {
+       case SHT_PROGBITS:
+         name = strptr (dso, dso->ehdr.e_shstrndx, dso->shdr[i].sh_name);
+         if (strcmp (name, ".stab") == 0
+             && adjust_stabs (dso, i, start, adjust))
+           return 1;
+         if (strcmp (name, ".debug_info") == 0
+             && adjust_dwarf2 (dso, i, start, adjust))
+           return 1;
+         break;
+       case SHT_HASH:
+       case SHT_GNU_HASH:
+       case SHT_NOBITS:
+       case SHT_STRTAB:
+         break;
+       case SHT_SYMTAB:
+       case SHT_DYNSYM:
+         if (adjust_symtab (dso, i, start, adjust))
+           return 1;
+         break;
+       case SHT_DYNAMIC:
+         if (adjust_dynamic (dso, i, start, adjust))
+           return 1;
+         break;
+       case SHT_REL:
+         if (adjust_rel (dso, i, start, adjust))
+           return 1;
+         break;
+       case SHT_RELA:
+         if (adjust_rela (dso, i, start, adjust))
+           return 1;
+         break;
+       }
+      if ((dso->arch->machine == EM_ALPHA
+          && dso->shdr[i].sh_type == SHT_ALPHA_DEBUG)
+         || (dso->arch->machine == EM_MIPS
+             && dso->shdr[i].sh_type == SHT_MIPS_DEBUG))
+       if (adjust_mdebug (dso, i, start, adjust))
+         return 1;
+    }
+
+  for (i = 0; i < dso->ehdr.e_shnum; i++)
+    {
+      if (RELOCATE_SCN (dso->shdr[i].sh_flags))
+       {
+         if (dso->shdr[i].sh_addr >= start)
+           {
+             Elf_Scn *scn = dso->scn[i];
+
+             dso->shdr[i].sh_addr += adjust;
+             if (start)
+               dso->shdr[i].sh_offset += adjust;
+             gelfx_update_shdr (dso->elf, scn, dso->shdr + i);
+             elf_flagshdr (scn, ELF_C_SET, ELF_F_DIRTY);
+           }
+       }
+    }
+
+  addr_adjust (dso->base, start, adjust);
+  addr_adjust (dso->end, start, adjust);
+
+  if (start)
+    {
+      start = adjust_new_to_old (dso, start);
+      for (i = 0; i < dso->nadjust; i++)
+       if (start < dso->adjust[i].start)
+         dso->adjust[i].adjust += adjust;
+       else
+         break;
+      if (i < dso->nadjust && start == dso->adjust[i].start)
+       dso->adjust[i].adjust += adjust;
+      else
+       {
+         dso->adjust =
+           realloc (dso->adjust, (dso->nadjust + 1) * sizeof (*dso->adjust));
+         if (dso->adjust == NULL)
+           {
+             error (0, ENOMEM, "Cannot record the list of adjustements being made");
+             return 1;
+           }
+         memmove (dso->adjust + i + 1, dso->adjust + i, dso->nadjust - i);
+         dso->adjust[i].start = start;
+         dso->adjust[i].adjust = adjust;
+         ++dso->nadjust;
+       }
+    }
+
+  return start ? adjust_dso_nonalloc (dso, 0, 0, adjust) : 0;
+}
+
+int
+recompute_nonalloc_offsets (DSO *dso)
+{
+  int i, first_nonalloc, sec_before_shoff = 0;
+  GElf_Addr last_offset = 0;
+  GElf_Addr shdralign = gelf_fsize (dso->elf, ELF_T_ADDR, 1, EV_CURRENT);
+  GElf_Addr shdrsize = gelf_fsize (dso->elf, ELF_T_SHDR, 1, EV_CURRENT)
+                      * dso->ehdr.e_shnum;
+
+  for (i = 1; i < dso->ehdr.e_shnum; ++i)
+    if (RELOCATE_SCN (dso->shdr[i].sh_flags))
+      {
+       if (dso->shdr[i].sh_type == SHT_NOBITS)
+         last_offset = dso->shdr[i].sh_offset;
+       else
+         last_offset = dso->shdr[i].sh_offset + dso->shdr[i].sh_size;
+      }
+    else
+      break;
+
+  first_nonalloc = i;
+  if (dso->ehdr.e_shoff < dso->shdr[i].sh_offset)
+    {
+      dso->ehdr.e_shoff = (last_offset + shdralign - 1) & ~(shdralign - 1);
+      last_offset = dso->ehdr.e_shoff + shdrsize;
+    }
+  else
+    for (; i < dso->ehdr.e_shnum; ++i)
+      if (dso->shdr[i].sh_offset < dso->ehdr.e_shoff
+         && (i == dso->ehdr.e_shnum - 1
+             || dso->shdr[i + 1].sh_offset > dso->ehdr.e_shoff))
+       {
+         sec_before_shoff = i;
+         break;
+       }
+
+  for (i = first_nonalloc; i < dso->ehdr.e_shnum; ++i)
+    {
+      assert (!RELOCATE_SCN (dso->shdr[i].sh_flags));
+      assert (dso->shdr[i].sh_type != SHT_NOBITS);
+      dso->shdr[i].sh_offset = (last_offset + dso->shdr[i].sh_addralign - 1)
+                              & ~(dso->shdr[i].sh_addralign - 1);
+      last_offset = dso->shdr[i].sh_offset + dso->shdr[i].sh_size;
+      if (i == sec_before_shoff)
+       {
+         dso->ehdr.e_shoff = (last_offset + shdralign - 1) & ~(shdralign - 1);
+         last_offset = dso->ehdr.e_shoff + shdrsize;
+       }
+    }
+
+  return 0;
+}
+
+int
+strtabfind (DSO *dso, int strndx, const char *name)
+{
+  Elf_Scn *scn;
+  Elf_Data *data;
+  const char *p, *q, *r;
+  size_t len = strlen (name);
+
+  if (dso->shdr[strndx].sh_type != SHT_STRTAB)
+    return 0;
+
+  scn = dso->scn[strndx];
+  data = elf_getdata (scn, NULL);
+  assert (elf_getdata (scn, data) == NULL);
+  assert (data->d_off == 0);
+  assert (data->d_size == dso->shdr[strndx].sh_size);
+  q = data->d_buf + data->d_size;
+  for (p = data->d_buf; p < q; p = r + 1)
+    {
+      r = strchr (p, '\0');
+      if (r - p >= len && memcmp (r - len, name, len) == 0)
+       return (r - (const char *) data->d_buf) - len;
+    }
+
+  return 0;
+}
+
+int
+shstrtabadd (DSO *dso, const char *name)
+{
+  Elf_Scn *scn;
+  Elf_Data *data;
+  GElf_Addr adjust;
+  const char *p, *q, *r;
+  size_t len = strlen (name), align;
+  int ret;
+
+  scn = dso->scn[dso->ehdr.e_shstrndx];
+  data = elf_getdata (scn, NULL);
+  assert (elf_getdata (scn, data) == NULL);
+  assert (data->d_off == 0);
+  assert (data->d_size == dso->shdr[dso->ehdr.e_shstrndx].sh_size);
+  q = data->d_buf + data->d_size;
+  for (p = data->d_buf; p < q; p = r + 1)
+    {
+      r = strchr (p, '\0');
+      if (r - p >= len && memcmp (r - len, name, len) == 0)
+       return (r - (const char *) data->d_buf) - len;
+    }
+
+  data->d_buf = realloc (data->d_buf, data->d_size + len + 1);
+  if (data->d_buf == NULL)
+    {
+      error (0, ENOMEM, "Cannot add new section name %s", name);
+      return 0;
+    }
+
+  memcpy (data->d_buf + data->d_size, name, len + 1);
+  ret = data->d_size;
+  data->d_size += len + 1;
+  align = gelf_fsize (dso->elf, ELF_T_ADDR, 1, EV_CURRENT);
+  adjust = (len + 1 + align - 1) & ~(align - 1);
+  if (adjust_dso_nonalloc (dso, 0,
+                          dso->shdr[dso->ehdr.e_shstrndx].sh_offset
+                          + dso->shdr[dso->ehdr.e_shstrndx].sh_size,
+                          adjust))
+    return 0;
+  dso->shdr[dso->ehdr.e_shstrndx].sh_size += len + 1;
+  return ret;
+}
+
+int
+relocate_dso (DSO *dso, GElf_Addr base)
+{
+  /* Check if it is already relocated.  */
+  if (dso->base == base)
+    return 0;
+
+  if (! dso_is_rdwr (dso))
+    {
+      if (reopen_dso (dso, NULL, NULL))
+       return 1;
+    }
+
+  return adjust_dso (dso, 0, base - dso->base);
+}
+
+static int
+close_dso_1 (DSO *dso)
+{
+  if (dso_is_rdwr (dso))
+    {
+      int i;
+
+      for (i = 1; i < dso->ehdr.e_shnum; ++i)
+       {
+         Elf_Scn *scn = dso->scn[i];
+         Elf_Data *data = NULL;
+
+         while ((data = elf_getdata (scn, data)) != NULL)
+           {
+             free (data->d_buf);
+             data->d_buf = NULL;
+           }
+       }
+    }
+
+  elf_end (dso->elf);
+  close (dso->fd);
+  if (dso->elfro)
+    {
+      elf_end (dso->elfro);
+      close (dso->fdro);
+    }
+  if (dso->filename != dso->soname)
+    free ((char *) dso->soname);
+  free ((char *) dso->filename);
+  free ((char *) dso->temp_filename);
+  free (dso->move);
+  free (dso->adjust);
+  free (dso->undo.d_buf);
+  free (dso);
+  return 0;
+}
+
+int
+close_dso (DSO *dso)
+{
+  int rdwr = dso_is_rdwr (dso);
+
+  if (rdwr && dso->temp_filename != NULL)
+    unlink (dso->temp_filename);
+  close_dso_1 (dso);
+  return 0;
+}
+
+int
+prepare_write_dso (DSO *dso)
+{
+  int i;
+
+  if (check_dso (dso)
+      || (dso->mdebug_orig_offset && finalize_mdebug (dso)))
+    return 1;
+
+  gelf_update_ehdr (dso->elf, &dso->ehdr);
+  for (i = 0; i < dso->ehdr.e_phnum; ++i)
+    gelf_update_phdr (dso->elf, i, dso->phdr + i);
+  for (i = 0; i < dso->ehdr.e_shnum; ++i)
+    {
+      gelfx_update_shdr (dso->elf, dso->scn[i], dso->shdr + i);
+      if (dso->shdr[i].sh_type == SHT_SYMTAB
+         || dso->shdr[i].sh_type == SHT_DYNSYM)
+       set_stt_section_values (dso, i);
+    }
+  return 0;
+}
+
+int
+write_dso (DSO *dso)
+{
+  if (prepare_write_dso (dso))
+    return 1;
+
+  if (! dso->permissive && ELF_F_PERMISSIVE)
+    elf_flagelf (dso->elf, ELF_C_CLR, ELF_F_PERMISSIVE);
+
+  if (elf_update (dso->elf, ELF_C_WRITE) == -1)
+    return 2;
+  return 0;
+}
+
+int
+set_security_context (DSO *dso, const char *temp_name, const char *name)
+{
+#ifdef USE_SELINUX
+  static int selinux_enabled = -1;
+  if (selinux_enabled == -1)
+    selinux_enabled = is_selinux_enabled ();
+  if (selinux_enabled > 0)
+    {
+      security_context_t scontext;
+      if (getfilecon (name, &scontext) < 0)
+       {
+         /* If the filesystem doesn't support extended attributes,
+            the original had no special security context and the
+            target cannot have one either.  */
+         if (errno == EOPNOTSUPP)
+           return 0;
+
+         error (0, errno, "Could not get security context for %s",
+                name);
+         return 1;
+       }
+      if (setfilecon (temp_name, scontext) < 0)
+       {
+         error (0, errno, "Could not set security context for %s",
+                name);
+         freecon (scontext);
+         return 1;
+       }
+      freecon (scontext);
+    }
+#endif
+  return 0;
+}
+
+int
+update_dso (DSO *dso, const char *orig_name)
+{
+  int rdwr = dso_is_rdwr (dso);
+
+  if (rdwr)
+    {
+      char *name1, *name2;
+      struct utimbuf u;
+      struct stat64 st;
+
+      switch (write_dso (dso))
+       {
+       case 2:
+         error (0, 0, "Could not write %s: %s", dso->filename,
+                elf_errmsg (-1));
+         /* FALLTHROUGH */
+       case 1:
+         close_dso (dso);
+         return 1;
+       case 0:
+         break;
+       }
+
+      name1 = strdupa (dso->filename);
+      name2 = strdupa (dso->temp_filename);
+      if (fstat64 (dso->fdro, &st) < 0)
+       {
+         error (0, errno, "Could not stat %s", dso->filename);
+         close_dso (dso);
+         return 1;
+       }
+      if (fchown (dso->fd, st.st_uid, st.st_gid) < 0
+         || fchmod (dso->fd, st.st_mode & 07777) < 0)
+       {
+         error (0, errno, "Could not set %s owner or mode", dso->filename);
+         close_dso (dso);
+         return 1;
+       }
+      close_dso_1 (dso);
+      u.actime = time (NULL);
+      u.modtime = st.st_mtime;
+      utime (name2, &u);
+
+      if (set_security_context (dso, name2, orig_name ? orig_name : name1))
+       {
+         unlink (name2);
+         return 1;
+       }
+
+      if (rename (name2, name1))
+       {
+         unlink (name2);
+         error (0, errno, "Could not rename temporary to %s", name1);
+         return 1;
+       }
+    }
+  else
+    close_dso_1 (dso);
+
+  return 0;
+}
diff --git a/src/dwarf2.c b/src/dwarf2.c
new file mode 100644 (file)
index 0000000..1e7596c
--- /dev/null
@@ -0,0 +1,1181 @@
+/* Copyright (C) 2001, 2002, 2003, 2005, 2006, 2009 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <byteswap.h>
+#include <endian.h>
+#include <errno.h>
+#include <error.h>
+#include <limits.h>
+#include <string.h>
+#include <sys/types.h>
+
+#include "dwarf2.h"
+#include "hashtab.h"
+#include "prelink.h"
+
+#define read_uleb128(ptr) ({           \
+  unsigned int ret = 0;                        \
+  unsigned int c;                      \
+  int shift = 0;                       \
+  do                                   \
+    {                                  \
+      c = *ptr++;                      \
+      ret |= (c & 0x7f) << shift;      \
+      shift += 7;                      \
+    } while (c & 0x80);                        \
+                                       \
+  if (shift >= 35)                     \
+    ret = UINT_MAX;                    \
+  ret;                                 \
+})
+
+static uint16_t (*do_read_16) (unsigned char *ptr);
+static uint32_t (*do_read_32) (unsigned char *ptr);
+static uint64_t (*do_read_32_64) (unsigned char *ptr);
+static uint64_t (*do_read_64) (unsigned char *ptr);
+static uint64_t (*do_read_ptr) (unsigned char *ptr);
+static void (*write_32) (unsigned char *ptr, GElf_Addr val);
+static void (*write_64) (unsigned char *ptr, GElf_Addr val);
+static void (*write_ptr) (unsigned char *ptr, GElf_Addr val);
+
+static int ptr_size;
+
+#define read_1(ptr) *ptr++
+
+#define read_16(ptr) ({                        \
+  uint16_t ret = do_read_16 (ptr);     \
+  ptr += 2;                            \
+  ret;                                 \
+})
+
+#define read_32(ptr) ({                        \
+  uint32_t ret = do_read_32 (ptr);     \
+  ptr += 4;                            \
+  ret;                                 \
+})
+
+#define read_64(ptr) ({                        \
+  uint64_t ret = do_read_64 (ptr);     \
+  ptr += 8;                            \
+  ret;                                 \
+})
+
+#define read_ptr(ptr) ({               \
+  uint64_t ret = do_read_ptr (ptr);    \
+  ptr += ptr_size;                     \
+  ret;                                 \
+})
+
+static uint64_t
+buf_read_ule32_64 (unsigned char *p)
+{
+  return buf_read_ule32 (p);
+}
+
+static uint64_t
+buf_read_ube32_64 (unsigned char *p)
+{
+  return buf_read_ube32 (p);
+}
+
+static void
+dwarf2_write_le32 (unsigned char *p, GElf_Addr val)
+{
+  uint32_t v = (uint32_t) val;
+
+  p[0] = v;
+  p[1] = v >> 8;
+  p[2] = v >> 16;
+  p[3] = v >> 24;
+}
+
+static void
+dwarf2_write_le64 (unsigned char *p, GElf_Addr val)
+{
+  p[0] = val;
+  p[1] = val >> 8;
+  p[2] = val >> 16;
+  p[3] = val >> 24;
+  p[4] = val >> 32;
+  p[5] = val >> 40;
+  p[6] = val >> 48;
+  p[7] = val >> 56;
+}
+
+static void
+dwarf2_write_be32 (unsigned char *p, GElf_Addr val)
+{
+  uint32_t v = (uint32_t) val;
+
+  p[3] = v;
+  p[2] = v >> 8;
+  p[1] = v >> 16;
+  p[0] = v >> 24;
+}
+
+static void
+dwarf2_write_be64 (unsigned char *p, GElf_Addr val)
+{
+  p[7] = val;
+  p[6] = val >> 8;
+  p[5] = val >> 16;
+  p[4] = val >> 24;
+  p[3] = val >> 32;
+  p[2] = val >> 40;
+  p[1] = val >> 48;
+  p[0] = val >> 56;
+}
+
+static struct
+  {
+    const char *name;
+    unsigned char *data;
+    size_t size;
+    int sec;
+  } debug_sections[] =
+  {
+#define DEBUG_INFO     0
+#define DEBUG_ABBREV   1
+#define DEBUG_LINE     2
+#define DEBUG_ARANGES  3
+#define DEBUG_PUBNAMES 4
+#define DEBUG_PUBTYPES 5
+#define DEBUG_MACINFO  6
+#define DEBUG_LOC      7
+#define DEBUG_STR      8
+#define DEBUG_FRAME    9
+#define DEBUG_RANGES   10
+    { ".debug_info", NULL, 0, 0 },
+    { ".debug_abbrev", NULL, 0, 0 },
+    { ".debug_line", NULL, 0, 0 },
+    { ".debug_aranges", NULL, 0, 0 },
+    { ".debug_pubnames", NULL, 0, 0 },
+    { ".debug_pubtypes", NULL, 0, 0 },
+    { ".debug_macinfo", NULL, 0, 0 },
+    { ".debug_loc", NULL, 0, 0 },
+    { ".debug_str", NULL, 0, 0 },
+    { ".debug_frame", NULL, 0, 0 },
+    { ".debug_ranges", NULL, 0, 0 },
+    { NULL, NULL, 0 }
+  };
+
+struct abbrev_attr
+  {
+    unsigned int attr;
+    unsigned int form;
+  };
+
+struct abbrev_tag
+  {
+    unsigned int entry;
+    unsigned int tag;
+    int nattr;
+    struct abbrev_attr attr[0];
+  };
+
+struct cu_data
+  {
+    GElf_Addr cu_entry_pc;
+    GElf_Addr cu_low_pc;
+    unsigned char cu_version;
+  };
+
+static hashval_t
+abbrev_hash (const void *p)
+{
+  struct abbrev_tag *t = (struct abbrev_tag *)p;
+
+  return t->entry;
+}
+
+static int
+abbrev_eq (const void *p, const void *q)
+{
+  struct abbrev_tag *t1 = (struct abbrev_tag *)p;
+  struct abbrev_tag *t2 = (struct abbrev_tag *)q;
+
+  return t1->entry == t2->entry;
+}
+
+static void
+abbrev_del (void *p)
+{
+  free (p);
+}
+
+static htab_t
+read_abbrev (DSO *dso, unsigned char *ptr)
+{
+  htab_t h = htab_try_create (50, abbrev_hash, abbrev_eq, abbrev_del);
+  unsigned int attr, form;
+  struct abbrev_tag *t;
+  int size;
+  void **slot;
+
+  if (h == NULL)
+    {
+no_memory:
+      error (0, ENOMEM, "%s: Could not read .debug_abbrev", dso->filename);
+      if (h)
+       htab_delete (h);
+      return NULL;
+    }
+
+  while ((attr = read_uleb128 (ptr)) != 0)
+    {
+      size = 10;
+      t = malloc (sizeof (*t) + size * sizeof (struct abbrev_attr));
+      if (t == NULL)
+       goto no_memory;
+      t->entry = attr;
+      t->nattr = 0;
+      slot = htab_find_slot (h, t, INSERT);
+      if (slot == NULL)
+       {
+         free (t);
+         goto no_memory;
+       }
+      if (*slot != NULL)
+       {
+         error (0, 0, "%s: Duplicate DWARF abbreviation %d", dso->filename,
+                t->entry);
+         free (t);
+         htab_delete (h);
+         return NULL;
+       }
+      t->tag = read_uleb128 (ptr);
+      ++ptr; /* skip children flag.  */
+      while ((attr = read_uleb128 (ptr)) != 0)
+       {
+         if (t->nattr == size)
+           {
+             size += 10;
+             t = realloc (t, sizeof (*t) + size * sizeof (struct abbrev_attr));
+             if (t == NULL)
+               goto no_memory;
+           }
+         form = read_uleb128 (ptr);
+         if (form == 2 || form > DW_FORM_indirect)
+           {
+             error (0, 0, "%s: Unknown DWARF DW_FORM_%d", dso->filename, form);
+             htab_delete (h);
+             return NULL;
+           }
+
+         t->attr[t->nattr].attr = attr;
+         t->attr[t->nattr++].form = form;
+       }
+      if (read_uleb128 (ptr) != 0)
+       {
+         error (0, 0, "%s: DWARF abbreviation does not end with 2 zeros",
+                dso->filename);
+         htab_delete (h);
+         return NULL;
+       }
+      *slot = t;
+    }
+
+  return h;
+}
+
+static int
+adjust_location_list (DSO *dso, unsigned char *ptr, size_t len,
+                     GElf_Addr start, GElf_Addr adjust)
+{
+  unsigned char *end = ptr + len;
+  unsigned char op;
+  GElf_Addr addr;
+
+  while (ptr < end)
+    {
+      op = *ptr++;
+      switch (op)
+       {
+       case DW_OP_addr:
+         addr = read_ptr (ptr);
+         if (addr >= start && addr_to_sec (dso, addr) != -1)
+           write_ptr (ptr - ptr_size, addr + adjust);
+         break;
+       case DW_OP_deref:
+       case DW_OP_dup:
+       case DW_OP_drop:
+       case DW_OP_over:
+       case DW_OP_swap:
+       case DW_OP_rot:
+       case DW_OP_xderef:
+       case DW_OP_abs:
+       case DW_OP_and:
+       case DW_OP_div:
+       case DW_OP_minus:
+       case DW_OP_mod:
+       case DW_OP_mul:
+       case DW_OP_neg:
+       case DW_OP_not:
+       case DW_OP_or:
+       case DW_OP_plus:
+       case DW_OP_shl:
+       case DW_OP_shr:
+       case DW_OP_shra:
+       case DW_OP_xor:
+       case DW_OP_eq:
+       case DW_OP_ge:
+       case DW_OP_gt:
+       case DW_OP_le:
+       case DW_OP_lt:
+       case DW_OP_ne:
+       case DW_OP_lit0 ... DW_OP_lit31:
+       case DW_OP_reg0 ... DW_OP_reg31:
+       case DW_OP_nop:
+       case DW_OP_push_object_address:
+       case DW_OP_form_tls_address:
+       case DW_OP_call_frame_cfa:
+       case DW_OP_stack_value:
+       case DW_OP_GNU_push_tls_address:
+       case DW_OP_GNU_uninit:
+         break;
+       case DW_OP_const1u:
+       case DW_OP_pick:
+       case DW_OP_deref_size:
+       case DW_OP_xderef_size:
+       case DW_OP_const1s:
+         ++ptr;
+         break;
+       case DW_OP_const2u:
+       case DW_OP_const2s:
+       case DW_OP_skip:
+       case DW_OP_bra:
+       case DW_OP_call2:
+         ptr += 2;
+         break;
+       case DW_OP_const4u:
+       case DW_OP_const4s:
+       case DW_OP_call4:
+       case DW_OP_call_ref:
+         ptr += 4;
+         break;
+       case DW_OP_const8u:
+       case DW_OP_const8s:
+         ptr += 8;
+         break;
+       case DW_OP_constu:
+       case DW_OP_plus_uconst:
+       case DW_OP_regx:
+       case DW_OP_piece:
+       case DW_OP_consts:
+       case DW_OP_breg0 ... DW_OP_breg31:
+       case DW_OP_fbreg:
+         read_uleb128 (ptr);
+         break;
+       case DW_OP_bregx:
+       case DW_OP_bit_piece:
+         read_uleb128 (ptr);
+         read_uleb128 (ptr);
+         break;
+       case DW_OP_implicit_value:
+         {
+           uint32_t len = read_uleb128 (ptr);
+           ptr += len;
+         }
+         break;
+       default:
+         error (0, 0, "%s: Unknown DWARF DW_OP_%d", dso->filename, op);
+         return 1;
+       }
+    }
+  return 0;
+}
+
+static int
+adjust_dwarf2_ranges (DSO *dso, GElf_Addr offset, GElf_Addr base,
+                     GElf_Addr start, GElf_Addr adjust)
+{
+  unsigned char *ptr, *endsec;
+  GElf_Addr low, high;
+  int adjusted_base;
+
+  ptr = debug_sections[DEBUG_RANGES].data;
+  if (ptr == NULL)
+    {
+      error (0, 0, "%s: DW_AT_ranges attribute, yet no .debug_ranges section",
+            dso->filename);
+      return 1;
+    }
+  if (offset >= debug_sections[DEBUG_RANGES].size)
+    {
+      error (0, 0,
+            "%s: DW_AT_ranges offset %Ld outside of .debug_ranges section",
+            dso->filename, (long long) offset);
+      return 1;
+    }
+  endsec = ptr + debug_sections[DEBUG_RANGES].size;
+  ptr += offset;
+  adjusted_base = (base && base >= start && addr_to_sec (dso, base) != -1);
+  while (ptr < endsec)
+    {
+      low = read_ptr (ptr);
+      high = read_ptr (ptr);
+      if (low == 0 && high == 0)
+       break;
+
+      if (low == ~ (GElf_Addr) 0 || (ptr_size == 4 && low == 0xffffffff))
+       {
+         base = high;
+         adjusted_base = (base && base >= start
+                          && addr_to_sec (dso, base) != -1);
+         if (adjusted_base)
+           write_ptr (ptr - ptr_size, base + adjust);
+       }
+      else if (! adjusted_base)
+       {
+         if (base + low >= start && addr_to_sec (dso, base + low) != -1)
+           {
+             write_ptr (ptr - 2 * ptr_size, low + adjust);
+             if (high == low)
+               write_ptr (ptr - ptr_size, high + adjust);
+           }
+         if (low != high && base + high >= start
+             && addr_to_sec (dso, base + high - 1) != -1)
+           write_ptr (ptr - ptr_size, high + adjust);
+       }
+    }
+
+  elf_flagscn (dso->scn[debug_sections[DEBUG_RANGES].sec], ELF_C_SET,
+              ELF_F_DIRTY);
+  return 0;
+}
+
+static int
+adjust_dwarf2_loc (DSO *dso, GElf_Addr offset, GElf_Addr base,
+                  GElf_Addr start, GElf_Addr adjust)
+{
+  unsigned char *ptr, *endsec;
+  GElf_Addr low, high;
+  int adjusted_base;
+  size_t len;
+
+  ptr = debug_sections[DEBUG_LOC].data;
+  if (ptr == NULL)
+    {
+      error (0, 0, "%s: loclistptr attribute, yet no .debug_loc section",
+            dso->filename);
+      return 1;
+    }
+  if (offset >= debug_sections[DEBUG_LOC].size)
+    {
+      error (0, 0,
+            "%s: loclistptr offset %Ld outside of .debug_loc section",
+            dso->filename, (long long) offset);
+      return 1;
+    }
+  endsec = ptr + debug_sections[DEBUG_LOC].size;
+  ptr += offset;
+  adjusted_base = (base && base >= start && addr_to_sec (dso, base) != -1);
+  while (ptr < endsec)
+    {
+      low = read_ptr (ptr);
+      high = read_ptr (ptr);
+      if (low == 0 && high == 0)
+       break;
+
+      if (low == ~ (GElf_Addr) 0 || (ptr_size == 4 && low == 0xffffffff))
+       {
+         base = high;
+         adjusted_base = (base && base >= start
+                          && addr_to_sec (dso, base) != -1);
+         if (adjusted_base)
+           write_ptr (ptr - ptr_size, base + adjust);
+         continue;
+       }
+      len = read_16 (ptr);
+      assert (ptr + len <= endsec);
+
+      if (adjust_location_list (dso, ptr, len, start, adjust))
+       return 1;
+
+      ptr += len;
+    }
+
+  elf_flagscn (dso->scn[debug_sections[DEBUG_LOC].sec], ELF_C_SET,
+              ELF_F_DIRTY);
+  return 0;
+}
+
+static unsigned char *
+adjust_attributes (DSO *dso, unsigned char *ptr, struct abbrev_tag *t,
+                  struct cu_data *cu,
+                  GElf_Addr start, GElf_Addr adjust)
+{
+  int i;
+  GElf_Addr addr;
+
+  for (i = 0; i < t->nattr; ++i)
+    {
+      uint32_t form = t->attr[i].form;
+      uint32_t len = 0;
+
+      while (1)
+       {
+         switch (t->attr[i].attr)
+           {
+           case DW_AT_location:
+           case DW_AT_string_length:
+           case DW_AT_return_addr:
+           case DW_AT_data_member_location:
+           case DW_AT_frame_base:
+           case DW_AT_static_link:
+           case DW_AT_use_location:
+           case DW_AT_vtable_elem_location:
+           case DW_AT_ranges:
+             if (form == DW_FORM_data4)
+               addr = read_32 (ptr), ptr -= 4;
+             else if (form == DW_FORM_data8)
+               addr = read_64 (ptr), ptr -= 8;
+             else
+               break;
+             {
+               GElf_Addr base;
+
+               if (cu->cu_entry_pc != ~ (GElf_Addr) 0)
+                 base = cu->cu_entry_pc;
+               else if (cu->cu_low_pc != ~ (GElf_Addr) 0)
+                 base = cu->cu_low_pc;
+               else
+                 base = 0;
+               if (t->attr[i].attr == DW_AT_ranges)
+                 {
+                   if (adjust_dwarf2_ranges (dso, addr, base, start, adjust))
+                     return NULL;
+                 }
+               else
+                 {
+                   if (adjust_dwarf2_loc (dso, addr, base, start, adjust))
+                     return NULL;
+                 }
+             }
+             break;
+           }
+         switch (form)
+           {
+           case DW_FORM_addr:
+             addr = read_ptr (ptr);
+             if (t->tag == DW_TAG_compile_unit
+                 || t->tag == DW_TAG_partial_unit)
+               {
+                 if (t->attr[i].attr == DW_AT_entry_pc)
+                   cu->cu_entry_pc = addr;
+                 else if (t->attr[i].attr == DW_AT_low_pc)
+                   cu->cu_low_pc = addr;
+                 if (addr == 0)
+                   break;
+               }
+             if (addr >= start && addr_to_sec (dso, addr) != -1)
+               write_ptr (ptr - ptr_size, addr + adjust);
+             break;
+           case DW_FORM_ref1:
+           case DW_FORM_flag:
+           case DW_FORM_data1:
+             ++ptr;
+             break;
+           case DW_FORM_ref2:
+           case DW_FORM_data2:
+             ptr += 2;
+             break;
+           case DW_FORM_ref4:
+           case DW_FORM_data4:
+             ptr += 4;
+             break;
+           case DW_FORM_ref8:
+           case DW_FORM_data8:
+             ptr += 8;
+             break;
+           case DW_FORM_sdata:
+           case DW_FORM_ref_udata:
+           case DW_FORM_udata:
+             read_uleb128 (ptr);
+             break;
+           case DW_FORM_ref_addr:
+             if (cu->cu_version == 2)
+               ptr += ptr_size;
+             else
+               ptr += 4;
+             break;
+           case DW_FORM_strp:
+             ptr += 4;
+             break;
+           case DW_FORM_string:
+             ptr = strchr (ptr, '\0') + 1;
+             break;
+           case DW_FORM_indirect:
+             form = read_uleb128 (ptr);
+             continue;
+           case DW_FORM_block1:
+             len = *ptr++;
+             break;
+           case DW_FORM_block2:
+             len = read_16 (ptr);
+             form = DW_FORM_block1;
+             break;
+           case DW_FORM_block4:
+             len = read_32 (ptr);
+             form = DW_FORM_block1;
+             break;
+           case DW_FORM_block:
+             len = read_uleb128 (ptr);
+             form = DW_FORM_block1;
+             assert (len < UINT_MAX);
+             break;
+           default:
+             error (0, 0, "%s: Unknown DWARF DW_FORM_%d", dso->filename,
+                    form);
+             return NULL;
+           }
+
+         if (form == DW_FORM_block1)
+           {
+             switch (t->attr[i].attr)
+               {
+               case DW_AT_frame_base:
+               case DW_AT_location:
+               case DW_AT_data_member_location:
+               case DW_AT_vtable_elem_location:
+                 if (adjust_location_list (dso, ptr, len, start, adjust))
+                   return NULL;
+                 break;
+               default:
+                 if (t->attr[i].attr <= DW_AT_call_line
+                     || (t->attr[i].attr >= DW_AT_MIPS_fde
+                         && t->attr[i].attr <= DW_AT_MIPS_has_inlines)
+                     || (t->attr[i].attr >= DW_AT_sf_names
+                         && t->attr[i].attr <= DW_AT_body_end))
+                   break;
+                 error (0, 0, "%s: Unknown DWARF DW_AT_%d with block DW_FORM",
+                        dso->filename, t->attr[i].attr);
+                 return NULL;
+               }
+             ptr += len;
+           }
+
+         break;
+       }
+    }
+
+  return ptr;
+}
+
+static int
+adjust_dwarf2_line (DSO *dso, GElf_Addr start, GElf_Addr adjust)
+{
+  unsigned char *ptr = debug_sections[DEBUG_LINE].data;
+  unsigned char *endsec = ptr + debug_sections[DEBUG_LINE].size;
+  unsigned char *endcu, *endprol;
+  unsigned char opcode_base, *opcode_lengths, op;
+  uint32_t value;
+  GElf_Addr addr;
+  int i;
+
+  while (ptr < endsec)
+    {
+      endcu = ptr + 4;
+      endcu += read_32 (ptr);
+      if (endcu == ptr + 0xffffffff)
+       {
+         error (0, 0, "%s: 64-bit DWARF not supported", dso->filename);
+         return 1;
+       }
+
+      if (endcu > endsec)
+       {
+         error (0, 0, "%s: .debug_line CU does not fit into section",
+                dso->filename);
+         return 1;
+       }
+
+      value = read_16 (ptr);
+      if (value != 2 && value != 3)
+       {
+         error (0, 0, "%s: DWARF version %d unhandled", dso->filename,
+                value);
+         return 1;
+       }
+
+      endprol = ptr + 4;
+      endprol += read_32 (ptr);
+      if (endprol > endcu)
+       {
+         error (0, 0, "%s: .debug_line CU prologue does not fit into CU",
+                dso->filename);
+         return 1;
+       }
+
+      opcode_base = ptr[4];
+      opcode_lengths = ptr + 4;
+
+      ptr = endprol;
+      while (ptr < endcu)
+       {
+         op = *ptr++;
+         if (op >= opcode_base)
+           continue;
+         if (op == 0)
+           {
+             unsigned int len = read_uleb128 (ptr);
+
+             assert (len < UINT_MAX);
+             op = *ptr++;
+             switch (op)
+               {
+               case DW_LNE_set_address:
+                 addr = read_ptr (ptr);
+                 if (addr >= start && addr_to_sec (dso, addr) != -1)
+                   write_ptr (ptr - ptr_size, addr + adjust);
+                 break;
+               case DW_LNE_end_sequence:
+               case DW_LNE_define_file:
+               default:
+                 ptr += len - 1;
+                 break;
+               }
+           }
+         else if (op == DW_LNS_fixed_advance_pc)
+           ptr += 2;
+         else
+           for (i = 0; i < opcode_lengths[op]; ++i)
+             read_uleb128 (ptr);
+       }
+    }
+
+  elf_flagscn (dso->scn[debug_sections[DEBUG_LINE].sec], ELF_C_SET,
+              ELF_F_DIRTY);
+  return 0;
+}
+
+static int
+adjust_dwarf2_aranges (DSO *dso, GElf_Addr start, GElf_Addr adjust)
+{
+  unsigned char *ptr = debug_sections[DEBUG_ARANGES].data;
+  unsigned char *endsec = ptr + debug_sections[DEBUG_ARANGES].size;
+  unsigned char *endcu;
+  GElf_Addr addr, len;
+  uint32_t value;
+
+  while (ptr < endsec)
+    {
+      endcu = ptr + 4;
+      endcu += read_32 (ptr);
+      if (endcu == ptr + 0xffffffff)
+       {
+         error (0, 0, "%s: 64-bit DWARF not supported", dso->filename);
+         return 1;
+       }
+
+      if (endcu > endsec)
+       {
+         error (0, 0, "%s: .debug_line CU does not fit into section",
+                dso->filename);
+         return 1;
+       }
+
+      value = read_16 (ptr);
+      if (value != 2)
+       {
+         error (0, 0, "%s: DWARF version %d unhandled", dso->filename,
+                value);
+         return 1;
+       }
+
+      ptr += 4;
+      if (ptr[0] != ptr_size || ptr[1])
+       {
+         error (0, 0, "%s: Unsupported .debug_aranges address size %d or segment size %d",
+                dso->filename, ptr[0], ptr[1]);
+         return 1;
+       }
+
+      ptr += 6;
+      while (ptr < endcu)
+       {
+         addr = read_ptr (ptr);
+         len = read_ptr (ptr);
+         if (addr == 0 && len == 0)
+           break;
+         if (addr >= start && addr_to_sec (dso, addr) != -1)
+           write_ptr (ptr - 2 * ptr_size, addr + adjust);
+       }
+      assert (ptr == endcu);
+    }
+
+  elf_flagscn (dso->scn[debug_sections[DEBUG_LINE].sec], ELF_C_SET,
+              ELF_F_DIRTY);
+  return 0;
+}
+
+static int
+adjust_dwarf2_frame (DSO *dso, GElf_Addr start, GElf_Addr adjust)
+{
+  unsigned char *ptr = debug_sections[DEBUG_FRAME].data;
+  unsigned char *endsec = ptr + debug_sections[DEBUG_FRAME].size;
+  unsigned char *endie;
+  GElf_Addr addr, len;
+  uint32_t value;
+
+  while (ptr < endsec)
+    {
+      endie = ptr + 4;
+      endie += read_32 (ptr);
+      if (endie == ptr + 0xffffffff)
+       {
+         error (0, 0, "%s: 64-bit DWARF not supported", dso->filename);
+         return 1;
+       }
+
+      if (endie > endsec)
+       {
+         error (0, 0, "%s: .debug_frame CIE/FDE does not fit into section",
+                dso->filename);
+         return 1;
+       }
+
+      value = read_32 (ptr);
+      if (value == 0xffffffff)
+       {
+         /* CIE.  */
+         uint32_t version = *ptr++;
+         if (version != 1 && version != 3)
+           {
+             error (0, 0, "%s: unhandled .debug_frame version %d",
+                    dso->filename, version);
+             return 1;
+           }
+         if (*ptr != '\0')
+           {
+             error (0, 0, "%s: .debug_frame unhandled augmentation \"%s\"",
+                    dso->filename, ptr);
+             return 1;
+           }
+         ptr++;  /* Skip augmentation.  */
+         read_uleb128 (ptr);  /* Skip code_alignment factor.  */
+         read_uleb128 (ptr);  /* Skip data_alignment factor.  */
+         if (version >= 3)
+           read_uleb128 (ptr);  /* Skip return_address_register.  */
+         else
+           ptr++;
+       }
+      else
+       {
+         addr = read_ptr (ptr);
+         if (addr >= start && addr_to_sec (dso, addr) != -1)
+           write_ptr (ptr - ptr_size, addr + adjust);
+         read_ptr (ptr);  /* Skip address range.  */
+       }
+
+      while (ptr < endie)
+       {
+         unsigned char insn = *ptr++;
+
+         if ((insn & 0xc0) == DW_CFA_advance_loc
+             || (insn & 0xc0) == DW_CFA_restore)
+           continue;
+         else if ((insn & 0xc0) == DW_CFA_offset)
+           {
+             read_uleb128 (ptr);
+             continue;
+           }
+         switch (insn)
+           {
+           case DW_CFA_nop:
+           case DW_CFA_remember_state:
+           case DW_CFA_restore_state:
+           case DW_CFA_GNU_window_save:
+             break;
+           case DW_CFA_offset_extended:
+           case DW_CFA_register:
+           case DW_CFA_def_cfa:
+           case DW_CFA_offset_extended_sf:
+           case DW_CFA_def_cfa_sf:
+           case DW_CFA_GNU_negative_offset_extended:
+           case DW_CFA_val_offset:
+           case DW_CFA_val_offset_sf:
+             read_uleb128 (ptr);
+             /* FALLTHROUGH */
+           case DW_CFA_restore_extended:
+           case DW_CFA_undefined:
+           case DW_CFA_same_value:
+           case DW_CFA_def_cfa_register:
+           case DW_CFA_def_cfa_offset:
+           case DW_CFA_def_cfa_offset_sf:
+           case DW_CFA_GNU_args_size:
+             read_uleb128 (ptr);
+             break;
+           case DW_CFA_set_loc:
+             addr = read_ptr (ptr);
+             if (addr >= start && addr_to_sec (dso, addr) != -1)
+               write_ptr (ptr - ptr_size, addr + adjust);
+             break;
+           case DW_CFA_advance_loc1:
+             ptr++;
+             break;
+           case DW_CFA_advance_loc2:
+             ptr += 2;
+             break;
+           case DW_CFA_advance_loc4:
+             ptr += 4;
+             break;
+           case DW_CFA_expression:
+           case DW_CFA_val_expression:
+             read_uleb128 (ptr);
+             /* FALLTHROUGH */
+           case DW_CFA_def_cfa_expression:
+             len = read_uleb128 (ptr);
+             if (adjust_location_list (dso, ptr, len, start, adjust))
+               return 1;
+             ptr += len;
+             break;
+           default:
+             error (0, 0, "%s: Unhandled DW_CFA_%02x operation",
+                    dso->filename, insn);
+             return 1;
+           }
+       }
+    }
+
+  elf_flagscn (dso->scn[debug_sections[DEBUG_FRAME].sec], ELF_C_SET,
+              ELF_F_DIRTY);
+  return 0;
+}
+
+int
+adjust_dwarf2 (DSO *dso, int n, GElf_Addr start, GElf_Addr adjust)
+{
+  Elf_Data *data;
+  Elf_Scn *scn;
+  int i, j;
+  struct cu_data cu;
+
+  for (i = 0; debug_sections[i].name; ++i)
+    {
+      debug_sections[i].data = NULL;
+      debug_sections[i].size = 0;
+      debug_sections[i].sec = 0;
+    }
+  ptr_size = 0;
+
+  memset (&cu, 0, sizeof(cu));
+  for (i = 1; i < dso->ehdr.e_shnum; ++i)
+    if (! (dso->shdr[i].sh_flags & (SHF_ALLOC | SHF_WRITE | SHF_EXECINSTR))
+       && dso->shdr[i].sh_size)
+      {
+       const char *name = strptr (dso, dso->ehdr.e_shstrndx,
+                                  dso->shdr[i].sh_name);
+
+       if (strncmp (name, ".debug_", sizeof (".debug_") - 1) == 0)
+         {
+           for (j = 0; debug_sections[j].name; ++j)
+             if (strcmp (name, debug_sections[j].name) == 0)
+               {
+                 if (debug_sections[j].data)
+                   {
+                     error (0, 0, "%s: Found two copies of %s section",
+                            dso->filename, name);
+                     return 1;
+                   }
+
+                 scn = dso->scn[i];
+                 data = elf_getdata (scn, NULL);
+                 assert (data != NULL && data->d_buf != NULL);
+                 assert (elf_getdata (scn, data) == NULL);
+                 assert (data->d_off == 0);
+                 assert (data->d_size == dso->shdr[i].sh_size);
+                 debug_sections[j].data = data->d_buf;
+                 debug_sections[j].size = data->d_size;
+                 debug_sections[j].sec = i;
+                 break;
+               }
+
+           if (debug_sections[j].name == NULL)
+             {
+               error (0, 0, "%s: Unknown debugging section %s",
+                      dso->filename, name);
+             }
+         }
+      }
+
+  if (dso->ehdr.e_ident[EI_DATA] == ELFDATA2LSB)
+    {
+      do_read_16 = buf_read_ule16;
+      do_read_32 = buf_read_ule32;
+      do_read_32_64 = buf_read_ule32_64;
+      do_read_64 = buf_read_ule64;
+      write_32 = dwarf2_write_le32;
+      write_64 = dwarf2_write_le64;
+    }
+  else if (dso->ehdr.e_ident[EI_DATA] == ELFDATA2MSB)
+    {
+      do_read_16 = buf_read_ube16;
+      do_read_32 = buf_read_ube32;
+      do_read_32_64 = buf_read_ube32_64;
+      do_read_64 = buf_read_ube64;
+      write_32 = dwarf2_write_be32;
+      write_64 = dwarf2_write_be64;
+    }
+  else
+    {
+      error (0, 0, "%s: Wrong ELF data enconding", dso->filename);
+      return 1;
+    }
+
+  if (debug_sections[DEBUG_INFO].data != NULL)
+    {
+      unsigned char *ptr, *endcu, *endsec;
+      uint32_t value;
+      htab_t abbrev;
+      struct abbrev_tag tag, *t;
+
+      ptr = debug_sections[DEBUG_INFO].data;
+      endsec = ptr + debug_sections[DEBUG_INFO].size;
+      while (ptr < endsec)
+       {
+         if (ptr + 11 > endsec)
+           {
+             error (0, 0, "%s: .debug_info CU header too small",
+                    dso->filename);
+             return 1;
+           }
+
+         endcu = ptr + 4;
+         endcu += read_32 (ptr);
+         if (endcu == ptr + 0xffffffff)
+           {
+             error (0, 0, "%s: 64-bit DWARF not supported", dso->filename);
+             return 1;
+           }
+
+         if (endcu > endsec)
+           {
+             error (0, 0, "%s: .debug_info too small", dso->filename);
+             return 1;
+           }
+
+         value = read_16 (ptr);
+         if (value != 2 && value != 3)
+           {
+             error (0, 0, "%s: DWARF version %d unhandled", dso->filename,
+                    value);
+             return 1;
+           }
+         cu.cu_version = value;
+
+         value = read_32 (ptr);
+         if (value >= debug_sections[DEBUG_ABBREV].size)
+           {
+             if (debug_sections[DEBUG_ABBREV].data == NULL)
+               error (0, 0, "%s: .debug_abbrev not present", dso->filename);
+             else
+               error (0, 0, "%s: DWARF CU abbrev offset too large",
+                      dso->filename);
+             return 1;
+           }
+
+         if (ptr_size == 0)
+           {
+             ptr_size = read_1 (ptr);
+             if (ptr_size == 4)
+               {
+                 do_read_ptr = do_read_32_64;
+                 write_ptr = write_32;
+               }
+             else if (ptr_size == 8)
+               {
+                 do_read_ptr = do_read_64;
+                 write_ptr = write_64;
+               }
+             else
+               {
+                 error (0, 0, "%s: Invalid DWARF pointer size %d",
+                        dso->filename, ptr_size);
+                 return 1;
+               }
+           }
+         else if (read_1 (ptr) != ptr_size)
+           {
+             error (0, 0, "%s: DWARF pointer size differs between CUs",
+                    dso->filename);
+             return 1;
+           }
+
+         abbrev = read_abbrev (dso,
+                               debug_sections[DEBUG_ABBREV].data + value);
+         if (abbrev == NULL)
+           return 1;
+
+         cu.cu_entry_pc = ~ (GElf_Addr) 0;
+         cu.cu_low_pc = ~ (GElf_Addr) 0;
+
+         while (ptr < endcu)
+           {
+             tag.entry = read_uleb128 (ptr);
+             if (tag.entry == 0)
+               continue;
+             t = htab_find_with_hash (abbrev, &tag, tag.entry);
+             if (t == NULL)
+               {
+                 error (0, 0, "%s: Could not find DWARF abbreviation %d",
+                        dso->filename, tag.entry);
+                 htab_delete (abbrev);
+                 return 1;
+               }
+
+             ptr = adjust_attributes (dso, ptr, t, &cu, start, adjust);
+             if (ptr == NULL)
+               {
+                 htab_delete (abbrev);
+                 return 1;
+               }
+           }
+
+         htab_delete (abbrev);
+       }
+    }
+
+  if (ptr_size == 0)
+    /* Should not happen.  */
+    ptr_size = dso->ehdr.e_ident[EI_CLASS] == ELFCLASS64 ? 8 : 4;
+
+  if (debug_sections[DEBUG_LINE].data != NULL
+      && adjust_dwarf2_line (dso, start, adjust))
+    return 1;
+
+  if (debug_sections[DEBUG_ARANGES].data != NULL
+      && adjust_dwarf2_aranges (dso, start, adjust))
+    return 1;
+
+  if (debug_sections[DEBUG_FRAME].data != NULL
+      && adjust_dwarf2_frame (dso, start, adjust))
+    return 1;
+
+  /* .debug_abbrev requires no adjustement.  */
+  /* .debug_pubnames requires no adjustement.  */
+  /* .debug_pubtypes requires no adjustement.  */
+  /* .debug_macinfo requires no adjustement.  */
+  /* .debug_str requires no adjustement.  */
+  /* .debug_ranges adjusted for each DW_AT_ranges pointing into it.  */
+  /* .debug_loc adjusted for each loclistptr pointing into it.  */
+
+  elf_flagscn (dso->scn[n], ELF_C_SET, ELF_F_DIRTY);
+  return 0;
+}
diff --git a/src/dwarf2.h b/src/dwarf2.h
new file mode 100644 (file)
index 0000000..143a00b
--- /dev/null
@@ -0,0 +1,502 @@
+/* Copyright (C) 2001, 2002, 2009 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#define DW_TAG_padding                 0x00
+#define DW_TAG_array_type              0x01
+#define DW_TAG_class_type              0x02
+#define DW_TAG_entry_point             0x03
+#define DW_TAG_enumeration_type                0x04
+#define DW_TAG_formal_parameter                0x05
+#define DW_TAG_imported_declaration    0x08
+#define DW_TAG_label                   0x0a
+#define DW_TAG_lexical_block           0x0b
+#define DW_TAG_member                  0x0d
+#define DW_TAG_pointer_type            0x0f
+#define DW_TAG_reference_type          0x10
+#define DW_TAG_compile_unit            0x11
+#define DW_TAG_string_type             0x12
+#define DW_TAG_structure_type          0x13
+#define DW_TAG_subroutine_type         0x15
+#define DW_TAG_typedef                 0x16
+#define DW_TAG_union_type              0x17
+#define DW_TAG_unspecified_parameters  0x18
+#define DW_TAG_variant                 0x19
+#define DW_TAG_common_block            0x1a
+#define DW_TAG_common_inclusion                0x1b
+#define DW_TAG_inheritance             0x1c
+#define DW_TAG_inlined_subroutine      0x1d
+#define DW_TAG_module                  0x1e
+#define DW_TAG_ptr_to_member_type      0x1f
+#define DW_TAG_set_type                        0x20
+#define DW_TAG_subrange_type           0x21
+#define DW_TAG_with_stmt               0x22
+#define DW_TAG_access_declaration      0x23
+#define DW_TAG_base_type               0x24
+#define DW_TAG_catch_block             0x25
+#define DW_TAG_const_type              0x26
+#define DW_TAG_constant                        0x27
+#define DW_TAG_enumerator              0x28
+#define DW_TAG_file_type               0x29
+#define DW_TAG_friend                  0x2a
+#define DW_TAG_namelist                        0x2b
+#define DW_TAG_namelist_item           0x2c
+#define DW_TAG_packed_type             0x2d
+#define DW_TAG_subprogram              0x2e
+#define DW_TAG_template_type_param     0x2f
+#define DW_TAG_template_value_param    0x30
+#define DW_TAG_thrown_type             0x31
+#define DW_TAG_try_block               0x32
+#define DW_TAG_variant_part            0x33
+#define DW_TAG_variable                        0x34
+#define DW_TAG_volatile_type           0x35
+#define DW_TAG_dwarf_procedure         0x36
+#define DW_TAG_restrict_type           0x37
+#define DW_TAG_interface_type          0x38
+#define DW_TAG_namespace               0x39
+#define DW_TAG_imported_module         0x3a
+#define DW_TAG_unspecified_type                0x3b
+#define DW_TAG_partial_unit            0x3c
+#define DW_TAG_imported_unit           0x3d
+#define DW_TAG_condition               0x3f
+#define DW_TAG_shared_type             0x40
+#define DW_TAG_MIPS_loop               0x4081
+#define DW_TAG_format_label            0x4101
+#define DW_TAG_function_template       0x4102
+#define DW_TAG_class_template          0x4103
+#define DW_TAG_GNU_BINCL               0x4104
+#define DW_TAG_GNU_EINCL               0x4105
+#define DW_TAG_lo_user                 0x4080
+#define DW_TAG_hi_user                 0xffff
+
+#define DW_children_no                 0x0
+#define        DW_children_yes                 0x1
+
+#define DW_FORM_addr                   0x01
+#define DW_FORM_block2                 0x03
+#define DW_FORM_block4                 0x04
+#define DW_FORM_data2                  0x05
+#define DW_FORM_data4                  0x06
+#define DW_FORM_data8                  0x07
+#define DW_FORM_string                 0x08
+#define DW_FORM_block                  0x09
+#define DW_FORM_block1                 0x0a
+#define DW_FORM_data1                  0x0b
+#define DW_FORM_flag                   0x0c
+#define DW_FORM_sdata                  0x0d
+#define DW_FORM_strp                   0x0e
+#define DW_FORM_udata                  0x0f
+#define DW_FORM_ref_addr               0x10
+#define DW_FORM_ref1                   0x11
+#define DW_FORM_ref2                   0x12
+#define DW_FORM_ref4                   0x13
+#define DW_FORM_ref8                   0x14
+#define DW_FORM_ref_udata              0x15
+#define DW_FORM_indirect               0x16
+
+#define DW_AT_sibling                  0x01
+#define DW_AT_location                 0x02
+#define DW_AT_name                     0x03
+#define DW_AT_ordering                 0x09
+#define DW_AT_subscr_data              0x0a
+#define DW_AT_byte_size                        0x0b
+#define DW_AT_bit_offset               0x0c
+#define DW_AT_bit_size                 0x0d
+#define DW_AT_element_list             0x0f
+#define DW_AT_stmt_list                        0x10
+#define DW_AT_low_pc                   0x11
+#define DW_AT_high_pc                  0x12
+#define DW_AT_language                 0x13
+#define DW_AT_member                   0x14
+#define DW_AT_discr                    0x15
+#define DW_AT_discr_value              0x16
+#define DW_AT_visibility               0x17
+#define DW_AT_import                   0x18
+#define DW_AT_string_length            0x19
+#define DW_AT_common_reference         0x1a
+#define DW_AT_comp_dir                 0x1b
+#define DW_AT_const_value              0x1c
+#define DW_AT_containing_type          0x1d
+#define DW_AT_default_value            0x1e
+#define DW_AT_inline                   0x20
+#define DW_AT_is_optional              0x21
+#define DW_AT_lower_bound              0x22
+#define DW_AT_producer                 0x25
+#define DW_AT_prototyped               0x27
+#define DW_AT_return_addr              0x2a
+#define DW_AT_start_scope              0x2c
+#define DW_AT_stride_size              0x2e
+#define DW_AT_upper_bound              0x2f
+#define DW_AT_abstract_origin          0x31
+#define DW_AT_accessibility            0x32
+#define DW_AT_address_class            0x33
+#define DW_AT_artificial               0x34
+#define DW_AT_base_types               0x35
+#define DW_AT_calling_convention       0x36
+#define DW_AT_count                    0x37
+#define DW_AT_data_member_location     0x38
+#define DW_AT_decl_column              0x39
+#define DW_AT_decl_file                        0x3a
+#define DW_AT_decl_line                        0x3b
+#define DW_AT_declaration              0x3c
+#define DW_AT_discr_list               0x3d
+#define DW_AT_encoding                 0x3e
+#define DW_AT_external                 0x3f
+#define DW_AT_frame_base               0x40
+#define DW_AT_friend                   0x41
+#define DW_AT_identifier_case          0x42
+#define DW_AT_macro_info               0x43
+#define DW_AT_namelist_items           0x44
+#define DW_AT_priority                 0x45
+#define DW_AT_segment                  0x46
+#define DW_AT_specification            0x47
+#define DW_AT_static_link              0x48
+#define DW_AT_type                     0x49
+#define DW_AT_use_location             0x4a
+#define DW_AT_variable_parameter       0x4b
+#define DW_AT_virtuality               0x4c
+#define DW_AT_vtable_elem_location     0x4d
+#define DW_AT_allocated                        0x4e
+#define DW_AT_associated               0x4f
+#define DW_AT_data_location            0x50
+#define DW_AT_stride                   0x51
+#define DW_AT_entry_pc                 0x52
+#define DW_AT_use_UTF8                 0x53
+#define DW_AT_extension                        0x54
+#define DW_AT_ranges                   0x55
+#define DW_AT_trampoline               0x56
+#define DW_AT_call_column              0x57
+#define DW_AT_call_file                        0x58
+#define DW_AT_call_line                        0x59
+#define DW_AT_MIPS_fde                 0x2001
+#define DW_AT_MIPS_loop_begin          0x2002
+#define DW_AT_MIPS_tail_loop_begin     0x2003
+#define DW_AT_MIPS_epilog_begin                0x2004
+#define DW_AT_MIPS_loop_unroll_factor  0x2005
+#define DW_AT_MIPS_software_pipeline_depth 0x2006
+#define DW_AT_MIPS_linkage_name                0x2007
+#define DW_AT_MIPS_stride              0x2008
+#define DW_AT_MIPS_abstract_name       0x2009
+#define DW_AT_MIPS_clone_origin                0x200a
+#define DW_AT_MIPS_has_inlines         0x200b
+#define DW_AT_sf_names                 0x2101
+#define DW_AT_src_info                 0x2102
+#define DW_AT_mac_info                 0x2103
+#define DW_AT_src_coords               0x2104
+#define DW_AT_body_begin               0x2105
+#define DW_AT_body_end                 0x2106
+#define DW_AT_lo_user                  0x2000
+#define DW_AT_hi_user                  0x3ff0
+
+#define DW_OP_addr                     0x03
+#define DW_OP_deref                    0x06
+#define DW_OP_const1u                  0x08
+#define DW_OP_const1s                  0x09
+#define DW_OP_const2u                  0x0a
+#define DW_OP_const2s                  0x0b
+#define DW_OP_const4u                  0x0c
+#define DW_OP_const4s                  0x0d
+#define DW_OP_const8u                  0x0e
+#define DW_OP_const8s                  0x0f
+#define DW_OP_constu                   0x10
+#define DW_OP_consts                   0x11
+#define DW_OP_dup                      0x12
+#define DW_OP_drop                     0x13
+#define DW_OP_over                     0x14
+#define DW_OP_pick                     0x15
+#define DW_OP_swap                     0x16
+#define DW_OP_rot                      0x17
+#define DW_OP_xderef                   0x18
+#define DW_OP_abs                      0x19
+#define DW_OP_and                      0x1a
+#define DW_OP_div                      0x1b
+#define DW_OP_minus                    0x1c
+#define DW_OP_mod                      0x1d
+#define DW_OP_mul                      0x1e
+#define DW_OP_neg                      0x1f
+#define DW_OP_not                      0x20
+#define DW_OP_or                       0x21
+#define DW_OP_plus                     0x22
+#define DW_OP_plus_uconst              0x23
+#define DW_OP_shl                      0x24
+#define DW_OP_shr                      0x25
+#define DW_OP_shra                     0x26
+#define DW_OP_xor                      0x27
+#define DW_OP_bra                      0x28
+#define DW_OP_eq                       0x29
+#define DW_OP_ge                       0x2a
+#define DW_OP_gt                       0x2b
+#define DW_OP_le                       0x2c
+#define DW_OP_lt                       0x2d
+#define DW_OP_ne                       0x2e
+#define DW_OP_skip                     0x2f
+#define DW_OP_lit0                     0x30
+#define DW_OP_lit1                     0x31
+#define DW_OP_lit2                     0x32
+#define DW_OP_lit3                     0x33
+#define DW_OP_lit4                     0x34
+#define DW_OP_lit5                     0x35
+#define DW_OP_lit6                     0x36
+#define DW_OP_lit7                     0x37
+#define DW_OP_lit8                     0x38
+#define DW_OP_lit9                     0x39
+#define DW_OP_lit10                    0x3a
+#define DW_OP_lit11                    0x3b
+#define DW_OP_lit12                    0x3c
+#define DW_OP_lit13                    0x3d
+#define DW_OP_lit14                    0x3e
+#define DW_OP_lit15                    0x3f
+#define DW_OP_lit16                    0x40
+#define DW_OP_lit17                    0x41
+#define DW_OP_lit18                    0x42
+#define DW_OP_lit19                    0x43
+#define DW_OP_lit20                    0x44
+#define DW_OP_lit21                    0x45
+#define DW_OP_lit22                    0x46
+#define DW_OP_lit23                    0x47
+#define DW_OP_lit24                    0x48
+#define DW_OP_lit25                    0x49
+#define DW_OP_lit26                    0x4a
+#define DW_OP_lit27                    0x4b
+#define DW_OP_lit28                    0x4c
+#define DW_OP_lit29                    0x4d
+#define DW_OP_lit30                    0x4e
+#define DW_OP_lit31                    0x4f
+#define DW_OP_reg0                     0x50
+#define DW_OP_reg1                     0x51
+#define DW_OP_reg2                     0x52
+#define DW_OP_reg3                     0x53
+#define DW_OP_reg4                     0x54
+#define DW_OP_reg5                     0x55
+#define DW_OP_reg6                     0x56
+#define DW_OP_reg7                     0x57
+#define DW_OP_reg8                     0x58
+#define DW_OP_reg9                     0x59
+#define DW_OP_reg10                    0x5a
+#define DW_OP_reg11                    0x5b
+#define DW_OP_reg12                    0x5c
+#define DW_OP_reg13                    0x5d
+#define DW_OP_reg14                    0x5e
+#define DW_OP_reg15                    0x5f
+#define DW_OP_reg16                    0x60
+#define DW_OP_reg17                    0x61
+#define DW_OP_reg18                    0x62
+#define DW_OP_reg19                    0x63
+#define DW_OP_reg20                    0x64
+#define DW_OP_reg21                    0x65
+#define DW_OP_reg22                    0x66
+#define DW_OP_reg23                    0x67
+#define DW_OP_reg24                    0x68
+#define DW_OP_reg25                    0x69
+#define DW_OP_reg26                    0x6a
+#define DW_OP_reg27                    0x6b
+#define DW_OP_reg28                    0x6c
+#define DW_OP_reg29                    0x6d
+#define DW_OP_reg30                    0x6e
+#define DW_OP_reg31                    0x6f
+#define DW_OP_breg0                    0x70
+#define DW_OP_breg1                    0x71
+#define DW_OP_breg2                    0x72
+#define DW_OP_breg3                    0x73
+#define DW_OP_breg4                    0x74
+#define DW_OP_breg5                    0x75
+#define DW_OP_breg6                    0x76
+#define DW_OP_breg7                    0x77
+#define DW_OP_breg8                    0x78
+#define DW_OP_breg9                    0x79
+#define DW_OP_breg10                   0x7a
+#define DW_OP_breg11                   0x7b
+#define DW_OP_breg12                   0x7c
+#define DW_OP_breg13                   0x7d
+#define DW_OP_breg14                   0x7e
+#define DW_OP_breg15                   0x7f
+#define DW_OP_breg16                   0x80
+#define DW_OP_breg17                   0x81
+#define DW_OP_breg18                   0x82
+#define DW_OP_breg19                   0x83
+#define DW_OP_breg20                   0x84
+#define DW_OP_breg21                   0x85
+#define DW_OP_breg22                   0x86
+#define DW_OP_breg23                   0x87
+#define DW_OP_breg24                   0x88
+#define DW_OP_breg25                   0x89
+#define DW_OP_breg26                   0x8a
+#define DW_OP_breg27                   0x8b
+#define DW_OP_breg28                   0x8c
+#define DW_OP_breg29                   0x8d
+#define DW_OP_breg30                   0x8e
+#define DW_OP_breg31                   0x8f
+#define DW_OP_regx                     0x90
+#define DW_OP_fbreg                    0x91
+#define DW_OP_bregx                    0x92
+#define DW_OP_piece                    0x93
+#define DW_OP_deref_size               0x94
+#define DW_OP_xderef_size              0x95
+#define DW_OP_nop                      0x96
+#define DW_OP_push_object_address      0x97
+#define DW_OP_call2                    0x98
+#define DW_OP_call4                    0x99
+#define DW_OP_call_ref                 0x9a
+#define DW_OP_form_tls_address         0x9b
+#define DW_OP_call_frame_cfa           0x9c
+#define DW_OP_bit_piece                        0x9d
+#define DW_OP_implicit_value           0x9e
+#define DW_OP_stack_value              0x9f
+#define DW_OP_GNU_push_tls_address     0xe0
+#define DW_OP_GNU_uninit               0xf0
+#define DW_OP_GNU_encoded_addr         0xf1
+#define DW_OP_lo_user                  0xe0
+#define DW_OP_hi_user                  0xff
+
+#define DW_ATE_void                    0x0
+#define DW_ATE_address                 0x1
+#define DW_ATE_boolean                 0x2
+#define DW_ATE_complex_float           0x3
+#define DW_ATE_float                   0x4
+#define DW_ATE_signed                  0x5
+#define DW_ATE_signed_char             0x6
+#define DW_ATE_unsigned                        0x7
+#define DW_ATE_unsigned_char           0x8
+#define DW_ATE_imaginary_float         0x9
+#define DW_ATE_packed_decimal          0xa
+#define DW_ATE_numeric_string          0xb
+#define DW_ATE_edited                  0xc
+#define DW_ATE_signed_fixed            0xd
+#define DW_ATE_unsigned_fixed          0xe
+#define DW_ATE_decimal_float           0xf
+#define        DW_ATE_lo_user                  0x80
+#define        DW_ATE_hi_user                  0xff
+
+#define DW_ORD_row_major               0x0
+#define DW_ORD_col_major               0x1
+
+#define DW_ACCESS_public               0x1
+#define DW_ACCESS_protected            0x2
+#define DW_ACCESS_private              0x3
+
+#define DW_VIS_local                   0x1
+#define DW_VIS_exported                        0x2
+#define DW_VIS_qualified               0x3
+
+#define DW_VIRTUALITY_none             0x0
+#define DW_VIRTUALITY_virtual          0x1
+#define DW_VIRTUALITY_pure_virtual     0x2
+
+#define DW_ID_case_sensitive           0x0
+#define DW_ID_up_case                  0x1
+#define DW_ID_down_case                        0x2
+#define DW_ID_case_insensitive         0x3
+
+#define DW_CC_normal                   0x1
+#define DW_CC_program                  0x2
+#define DW_CC_nocall                   0x3
+#define DW_CC_lo_user                  0x40
+#define DW_CC_hi_user                  0xff
+
+#define DW_INL_not_inlined             0x0
+#define DW_INL_inlined                 0x1
+#define DW_INL_declared_not_inlined    0x2
+#define DW_INL_declared_inlined                0x3
+
+#define DW_DSC_label                   0x0
+#define DW_DSC_range                   0x1
+
+#define DW_LNS_extended_op             0x0
+#define DW_LNS_copy                    0x1
+#define DW_LNS_advance_pc              0x2
+#define DW_LNS_advance_line            0x3
+#define DW_LNS_set_file                        0x4
+#define DW_LNS_set_column              0x5
+#define DW_LNS_negate_stmt             0x6
+#define DW_LNS_set_basic_block         0x7
+#define DW_LNS_const_add_pc            0x8
+#define DW_LNS_fixed_advance_pc                0x9
+
+#define DW_LNE_end_sequence            0x1
+#define DW_LNE_set_address             0x2
+#define DW_LNE_define_file             0x3
+
+#define DW_CFA_advance_loc             0x40
+#define DW_CFA_offset                  0x80
+#define DW_CFA_restore                 0xc0
+#define DW_CFA_nop                     0x00
+#define DW_CFA_set_loc                 0x01
+#define DW_CFA_advance_loc1            0x02
+#define DW_CFA_advance_loc2            0x03
+#define DW_CFA_advance_loc4            0x04
+#define DW_CFA_offset_extended         0x05
+#define DW_CFA_restore_extended                0x06
+#define DW_CFA_undefined               0x07
+#define DW_CFA_same_value              0x08
+#define DW_CFA_register                        0x09
+#define DW_CFA_remember_state          0x0a
+#define DW_CFA_restore_state           0x0b
+#define DW_CFA_def_cfa                 0x0c
+#define DW_CFA_def_cfa_register                0x0d
+#define DW_CFA_def_cfa_offset          0x0e
+#define DW_CFA_def_cfa_expression      0x0f
+#define DW_CFA_expression              0x10
+#define DW_CFA_offset_extended_sf      0x11
+#define DW_CFA_def_cfa_sf              0x12
+#define DW_CFA_def_cfa_offset_sf       0x13
+#define DW_CFA_val_offset              0x14
+#define DW_CFA_val_offset_sf           0x15
+#define DW_CFA_val_expression          0x16
+#define DW_CFA_MIPS_advance_loc8       0x1d
+#define DW_CFA_GNU_window_save         0x2d
+#define DW_CFA_GNU_args_size           0x2e
+#define DW_CFA_GNU_negative_offset_extended 0x2f
+
+#define DW_CIE_ID                      0xffffffff
+#define DW_CIE_VERSION                 1
+
+#define DW_CFA_extended                0
+#define DW_CFA_low_user                0x1c
+#define DW_CFA_high_user               0x3f
+
+#define DW_CHILDREN_no                 0x00
+#define DW_CHILDREN_yes                        0x01
+
+#define DW_ADDR_none                   0
+
+#define DW_LANG_C89                    0x0001
+#define DW_LANG_C                      0x0002
+#define DW_LANG_Ada83                  0x0003
+#define DW_LANG_C_plus_plus            0x0004
+#define DW_LANG_Cobol74                        0x0005
+#define DW_LANG_Cobol85                        0x0006
+#define DW_LANG_Fortran77              0x0007
+#define DW_LANG_Fortran90              0x0008
+#define DW_LANG_Pascal83               0x0009
+#define DW_LANG_Modula2                        0x000a
+#define DW_LANG_Java                   0x000b
+#define DW_LANG_C99                    0x000c
+#define DW_LANG_Ada95                  0x000d
+#define DW_LANG_Fortran95              0x000e
+#define DW_LANG_PLI                    0x000f
+#define DW_LANG_ObjC                   0x0010
+#define DW_LANG_ObjC_plus_plus         0x0011
+#define DW_LANG_UPC                    0x0012
+#define DW_LANG_D                      0x0013
+#define DW_LANG_Mips_Assembler         0x8001
+#define DW_LANG_lo_user                        0x8000
+#define DW_LANG_hi_user                        0xffff
+
+#define DW_MACINFO_define              1
+#define DW_MACINFO_undef               2
+#define DW_MACINFO_start_file          3
+#define DW_MACINFO_end_file            4
+#define DW_MACINFO_vendor_ext          255
diff --git a/src/exec.c b/src/exec.c
new file mode 100644 (file)
index 0000000..7c8f38f
--- /dev/null
@@ -0,0 +1,1068 @@
+/* Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include "prelink.h"
+#include "reloc.h"
+#include "space.h"
+
+int
+update_dynamic_tags (DSO *dso, GElf_Shdr *shdr, GElf_Shdr *old_shdr,
+                    struct section_move *move)
+{
+  int i, j;
+
+  for (i = 1; i < move->new_shnum; ++i)
+    {
+      j = move->new_to_old[i];
+      if (j == -1)
+       continue;
+      if ((dynamic_info_is_set (dso, DT_HASH)
+          && dso->info[DT_HASH] == old_shdr[j].sh_addr
+          && old_shdr[j].sh_type == SHT_HASH
+          && set_dynamic (dso, DT_HASH, shdr[i].sh_addr, 1))
+         || (dynamic_info_is_set (dso, DT_SYMTAB)
+             && dso->info[DT_SYMTAB] == old_shdr[j].sh_addr
+             && old_shdr[j].sh_type == SHT_DYNSYM
+             && set_dynamic (dso, DT_SYMTAB, shdr[i].sh_addr, 1))
+         || (dynamic_info_is_set (dso, DT_STRTAB)
+             && dso->info[DT_STRTAB] == old_shdr[j].sh_addr
+             && old_shdr[j].sh_type == SHT_STRTAB
+             && set_dynamic (dso, DT_STRTAB, shdr[i].sh_addr, 1))
+         || (dynamic_info_is_set (dso, DT_VERDEF_BIT)
+             && dso->info_DT_VERDEF == old_shdr[j].sh_addr
+             && old_shdr[j].sh_type == SHT_GNU_verdef
+             && set_dynamic (dso, DT_VERDEF, shdr[i].sh_addr, 1))
+         || (dynamic_info_is_set (dso, DT_VERNEED_BIT)
+             && dso->info_DT_VERNEED == old_shdr[j].sh_addr
+             && old_shdr[j].sh_type == SHT_GNU_verneed
+             && set_dynamic (dso, DT_VERNEED, shdr[i].sh_addr, 1))
+         || (dynamic_info_is_set (dso, DT_VERSYM_BIT)
+             && dso->info_DT_VERSYM == old_shdr[j].sh_addr
+             && old_shdr[j].sh_type == SHT_GNU_versym
+             && set_dynamic (dso, DT_VERSYM, shdr[i].sh_addr, 1))
+         || (dynamic_info_is_set (dso, DT_GNU_HASH_BIT)
+             && dso->info_DT_GNU_HASH == old_shdr[j].sh_addr
+             && old_shdr[j].sh_type == SHT_GNU_HASH
+             && set_dynamic (dso, DT_GNU_HASH, shdr[i].sh_addr, 1)))
+       return 1;
+    }
+
+  return 0;
+}
+
+int
+prelink_exec (struct prelink_info *info)
+{
+  int i, j, ndeps = info->ent->ndepends + 1;
+  int dynstrndx, dynstrndxnew, growdynstr = 0, shstrndxnew;
+  int old_conflict = 0, old_liblist = 0;
+  int new_conflict = -1, new_liblist = -1;
+  int new_reloc = -1, new_plt = -1, new_dynstr = -1;
+  int old_dynbss = -1, old_bss = -1, new_dynbss = -1;
+  int old_sdynbss = -1, old_sbss = -1, new_sdynbss = -1;
+  int addcnt, undo, shnum_after_undo;
+  struct reloc_info rinfo, rinfonew;
+  DSO *dso = info->dso;
+  GElf_Ehdr ehdr;
+  GElf_Phdr phdr[dso->ehdr.e_phnum + 1];
+  GElf_Shdr old_shdr[dso->ehdr.e_shnum], new_shdr[dso->ehdr.e_shnum + 20];
+  GElf_Shdr shdr_after_undo[dso->ehdr.e_shnum + 20];
+  GElf_Shdr *shdr;
+  Elf32_Lib *liblist = NULL;
+  struct readonly_adjust adjust;
+  struct section_move *move = NULL;
+
+  if (prelink_build_conflicts (info))
+    return 1;
+
+  if (find_reloc_sections (dso, &rinfo))
+    return 1;
+
+  move = init_section_move (dso);
+  if (move == NULL)
+    return 1;
+
+  ehdr = dso->ehdr;
+  memcpy (phdr, dso->phdr, dso->ehdr.e_phnum * sizeof (GElf_Phdr));
+  memcpy (old_shdr, dso->shdr, dso->ehdr.e_shnum * sizeof (GElf_Shdr));
+  shdr = new_shdr;
+  memcpy (shdr, dso->shdr, dso->ehdr.e_shnum * sizeof (GElf_Shdr));
+
+  for (undo = 1; undo < dso->ehdr.e_shnum; ++undo)
+    if (! strcmp (strptr (dso, dso->ehdr.e_shstrndx, dso->shdr[undo].sh_name),
+                 ".gnu.prelink_undo"))
+      break;
+
+  if (undo < dso->ehdr.e_shnum)
+    {
+      Elf_Data *data;
+
+      if (undo_sections (dso, undo, move, &rinfo, &ehdr, phdr, shdr))
+       {
+error_out:
+         free (liblist);
+         free (move);
+         return 1;
+       }
+
+      data = elf_getdata (dso->scn[undo], NULL);
+      assert (data->d_buf != NULL);
+      assert (data->d_off == 0);
+      assert (data->d_size == dso->shdr[undo].sh_size);
+      dso->undo = *data;
+      dso->undo.d_buf = malloc (dso->undo.d_size);
+      if (dso->undo.d_buf == NULL)
+       {
+         error (0, ENOMEM, "%s: Could not create .gnu.prelink_undo section",
+                dso->filename);
+         goto error_out;
+       }
+      memcpy (dso->undo.d_buf, data->d_buf, data->d_size);
+      ehdr.e_shstrndx = dso->ehdr.e_shstrndx;
+    }
+  undo = 0;
+
+  memcpy (shdr_after_undo, shdr, ehdr.e_shnum * sizeof (GElf_Shdr));
+
+  for (dynstrndx = 1; dynstrndx < dso->ehdr.e_shnum; ++dynstrndx)
+    if (! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                         dso->shdr[dynstrndx].sh_name),
+                 ".dynstr"))
+      break;
+
+  if (dynstrndx == dso->ehdr.e_shnum)
+    {
+      error (0, 0, "%s: Could not find .dynstr section", dso->filename);
+      goto error_out;
+    }
+
+  dynstrndxnew = move->old_to_new[dynstrndx];
+  shstrndxnew = move->old_to_new[dso->ehdr.e_shstrndx];
+  shnum_after_undo = move->new_shnum;
+
+  if (ndeps > 1)
+    {
+      liblist = calloc (ndeps - 1, sizeof (Elf32_Lib));
+      if (liblist == NULL)
+       {
+         error (0, ENOMEM, "%s: Cannot build .gnu.liblist section",
+                dso->filename);
+         goto error_out;
+       }
+    }
+  else
+    liblist = NULL;
+
+  for (i = 0; i < ndeps - 1; ++i)
+    {
+      struct prelink_entry *ent = info->ent->depends[i];
+
+      liblist[i].l_name = strtabfind (dso, dynstrndx, info->sonames[i + 1]);
+      if (liblist[i].l_name >= shdr[dynstrndxnew].sh_size)
+       liblist[i].l_name = 0;
+      if (liblist[i].l_name == 0)
+       growdynstr += strlen (info->sonames[i + 1]) + 1;
+      liblist[i].l_time_stamp = ent->timestamp;
+      liblist[i].l_checksum = ent->checksum;
+    }
+
+  if (info->dynbss)
+    {
+      old_bss = addr_to_sec (dso, info->dynbss_base);
+      assert (old_bss != -1);
+      if (move->old_to_new[old_bss] == -1)
+       ++old_bss;
+      assert (move->old_to_new[old_bss] != -1);
+      assert (shdr[move->old_to_new[old_bss]].sh_addr <= info->dynbss_base);
+      assert (shdr[move->old_to_new[old_bss]].sh_addr
+             + shdr[move->old_to_new[old_bss]].sh_size > info->dynbss_base);
+    }
+  if (info->sdynbss)
+    {
+      old_sbss = addr_to_sec (dso, info->sdynbss_base);
+      assert (old_sbss != -1);
+      if (move->old_to_new[old_sbss] == -1)
+       ++old_sbss;
+      assert (move->old_to_new[old_sbss] != -1);
+      assert (shdr[move->old_to_new[old_sbss]].sh_addr <= info->sdynbss_base);
+      assert (shdr[move->old_to_new[old_sbss]].sh_addr
+             + shdr[move->old_to_new[old_sbss]].sh_size > info->sdynbss_base);
+    }
+
+  rinfonew = rinfo;
+  if (rinfo.first != -1)
+    {
+      rinfonew.first = move->old_to_new[rinfo.first];
+      rinfonew.last = move->old_to_new[rinfo.last];
+      if (shdr[rinfonew.first].sh_type == SHT_REL
+         && dso->shdr[rinfo.first].sh_type == SHT_RELA)
+       {
+         rinfonew.rel_to_rela = 1;
+         rinfonew.reldyn_rela = 0;
+       }
+    }
+  if (rinfo.plt != -1)
+    {
+      rinfonew.plt = move->old_to_new[rinfo.plt];
+      if (shdr[rinfonew.plt].sh_type == SHT_REL
+         && dso->shdr[rinfo.plt].sh_type == SHT_RELA)
+       {
+         rinfonew.rel_to_rela_plt = 1;
+         rinfonew.plt_rela = 0;
+       }
+    }
+
+  for (i = 1, j = 1; i < ehdr.e_shnum; ++i)
+    {
+      const char *name;
+      name = strptr (dso, dso->ehdr.e_shstrndx, shdr[i].sh_name);
+      if (! strcmp (name, ".dynbss"))
+       old_dynbss = move->new_to_old[j];
+      else if (! strcmp (name, ".sdynbss"))
+       old_sdynbss = move->new_to_old[j];
+      else if (! strcmp (name, ".gnu.prelink_undo"))
+       undo = -1;
+      if (! strcmp (name, ".gnu.conflict"))
+       {
+         old_conflict = move->new_to_old[j];
+         remove_section (move, j);
+       }
+      else if (! strcmp (name, ".gnu.liblist"))
+       {
+         old_liblist = move->new_to_old[j];
+         remove_section (move, j);
+       }
+      else if (rinfonew.rel_to_rela
+              && i >= rinfonew.first && i <= rinfonew.last)
+       remove_section (move, j);
+      else if (i == rinfonew.plt
+              && (rinfonew.rel_to_rela || rinfonew.rel_to_rela_plt))
+       remove_section (move, j);
+      else if (i == dynstrndxnew && growdynstr)
+       remove_section (move, j);
+      else
+       shdr[j++] = shdr[i];
+    }
+  assert (j == move->new_shnum);
+  ehdr.e_shnum = j;
+
+  if (old_sdynbss != -1 && old_dynbss == -1)
+    {
+      old_dynbss = old_sdynbss;
+      old_sdynbss = -1;
+    }
+
+  GElf_Shdr add[rinfo.last - rinfo.first + 5];
+  int old[rinfo.last - rinfo.first + 5];
+  int new[rinfo.last - rinfo.first + 5];
+  memset (add, 0, sizeof (add));
+  memset (old, 0, sizeof (old));
+  memset (new, 0, sizeof (new));
+
+  i = 0;
+  if (rinfonew.rel_to_rela)
+    {
+      add[i] = shdr_after_undo[rinfonew.first];
+      add[i].sh_size = shdr_after_undo[rinfonew.last].sh_addr
+                      + shdr_after_undo[rinfonew.last].sh_size
+                      - add[i].sh_addr;
+      assert (sizeof (Elf32_Rel) * 3 == sizeof (Elf32_Rela) * 2);
+      assert (sizeof (Elf64_Rel) * 3 == sizeof (Elf64_Rela) * 2);
+      add[i].sh_size = add[i].sh_size / 2 * 3;
+      old[i] = rinfo.first;
+      new_reloc = i++;
+      for (j = rinfo.first + 1; j <= rinfo.last; ++j)
+       {
+         add[i] = shdr_after_undo[rinfonew.first - rinfo.first + j];
+         add[i].sh_size = add[i].sh_size / 2 * 3;
+         old[i++] = j;
+       }
+      if (rinfonew.plt)
+       {
+         add[i] = shdr_after_undo[rinfonew.plt];
+         if (rinfonew.rel_to_rela_plt)
+           add[i].sh_size = add[i].sh_size / 2 * 3;
+         /* Temporarily merge them, so that they are allocated adjacently.  */
+         add[new_reloc].sh_size += add[i].sh_size;
+         old[i] = rinfo.plt;
+         new_plt = i++;
+       }
+    }
+  else if (rinfonew.rel_to_rela_plt)
+    {
+      add[i] = shdr_after_undo[rinfonew.plt];
+      assert (sizeof (Elf32_Rel) * 3 == sizeof (Elf32_Rela) * 2);
+      assert (sizeof (Elf64_Rel) * 3 == sizeof (Elf64_Rela) * 2);
+      add[i].sh_size = add[i].sh_size / 2 * 3;
+      old[i] = rinfo.plt;
+      new_plt = i++;
+    }
+  if (growdynstr)
+    {
+      add[i] = shdr_after_undo[dynstrndxnew];
+      add[i].sh_size += growdynstr;
+      old[i] = dynstrndx;
+      new_dynstr = i++;
+    }
+  add[i].sh_flags = SHF_ALLOC;
+  add[i].sh_type = SHT_GNU_LIBLIST;
+  add[i].sh_size = (ndeps - 1) * sizeof (Elf32_Lib);
+  add[i].sh_addralign = sizeof (GElf_Word);
+  add[i].sh_entsize = sizeof (Elf32_Lib);
+  old[i] = old_liblist;
+  new_liblist = i++;
+  if (info->conflict_rela_size)
+    {
+      add[i].sh_flags = SHF_ALLOC;
+      add[i].sh_type = SHT_RELA;
+      add[i].sh_entsize = gelf_fsize (dso->elf, ELF_T_RELA, 1, EV_CURRENT);
+      add[i].sh_size = info->conflict_rela_size * add[i].sh_entsize;
+      add[i].sh_addralign = gelf_fsize (dso->elf, ELF_T_ADDR, 1, EV_CURRENT);
+      old[i] = old_conflict;
+      new_conflict = i++;
+    }
+  addcnt = i;
+  memset (&adjust, 0, sizeof (adjust));
+  adjust.new = new;
+  adjust.move = move;
+
+  for (i = 0; i < addcnt; ++i)
+    {
+      new[i] = find_readonly_space (dso, add + i, &ehdr, phdr, shdr, &adjust);
+      if (new[i] == 0)
+       goto error_out;
+      add_section (move, new[i]);
+      ++adjust.newcount;
+      if (old[i])
+       {
+         move->old_to_new[old[i]] = new[i];
+         move->new_to_old[new[i]] = old[i];
+       }
+      if (i == new_reloc)
+       {
+         int k, l = new[new_reloc];
+
+         j = rinfo.last - rinfo.first + (new_plt != -1);
+         shdr[l].sh_size = shdr_after_undo[rinfonew.first].sh_size / 2 * 3;
+         for (k = 1; k <= j; ++k)
+           {
+             insert_readonly_section (&ehdr, shdr, l + k, &adjust);
+             shdr[l + k] = add[new_reloc + k];
+             shdr[l + k].sh_addr = shdr[l + k - 1].sh_addr
+                                   + shdr[l + k - 1].sh_size;
+             shdr[l + k].sh_offset = shdr[l + k - 1].sh_offset
+                                     + shdr[l + k - 1].sh_size;
+             new[++i] = l + k;
+             add_section (move, l + k);
+             move->old_to_new[rinfo.first + k] = l + k;
+             move->new_to_old[l + k] = rinfo.first + k;
+             ++adjust.newcount;
+           }
+       }
+    }
+
+  if (info->sdynbss)
+    {
+      if (old_sdynbss == -1)
+       {
+         new_sdynbss = move->old_to_new[old_sbss];
+         memmove (&shdr[new_sdynbss + 1], &shdr[new_sdynbss],
+                  (ehdr.e_shnum - new_sdynbss) * sizeof (GElf_Shdr));
+         shdr[new_sdynbss].sh_size = 0;
+         ++ehdr.e_shnum;
+         add_section (move, new_sdynbss);
+         for (i = 0; i < addcnt; ++i)
+           if (new[i] >= new_sdynbss)
+             ++new[i];
+       }
+      else
+       new_sdynbss = move->old_to_new[old_sdynbss];
+    }
+
+  if (info->dynbss)
+    {
+      if (old_dynbss == -1)
+       {
+         new_dynbss = move->old_to_new[old_bss];
+         memmove (&shdr[new_dynbss + 1], &shdr[new_dynbss],
+                  (ehdr.e_shnum - new_dynbss) * sizeof (GElf_Shdr));
+         shdr[new_dynbss].sh_size = 0;
+         ++ehdr.e_shnum;
+         add_section (move, new_dynbss);
+         for (i = 0; i < addcnt; ++i)
+           if (new[i] >= new_dynbss)
+             ++new[i];
+       }
+      else
+       new_dynbss = move->old_to_new[old_dynbss];
+    }
+
+  if (undo != -1)
+    {
+      undo = move->old_to_new[dso->ehdr.e_shstrndx];
+      memmove (&shdr[undo + 1], &shdr[undo],
+              (ehdr.e_shnum - undo) * sizeof (GElf_Shdr));
+      memset (&shdr[undo], 0, sizeof (shdr[undo]));
+      shdr[undo].sh_type = SHT_PROGBITS;
+      shdr[undo].sh_addralign = dso->undo.d_align;
+      ++ehdr.e_shnum;
+      for (i = 0; i < addcnt; ++i)
+       if (new[i] >= undo)
+         ++new[i];
+      add_section (move, undo);
+    }
+
+  i = ehdr.e_shnum;
+  ehdr.e_shnum = dso->ehdr.e_shnum;
+  dso->ehdr = ehdr;
+  memcpy (dso->phdr, phdr, ehdr.e_phnum * sizeof (GElf_Phdr));
+  if (reopen_dso (dso, move, NULL))
+    goto error_out;
+
+  assert (i == dso->ehdr.e_shnum);
+
+  if (shnum_after_undo != move->new_shnum)
+    adjust_nonalloc (dso, &dso->ehdr, shdr, 0,
+                    dso->ehdr.e_shoff + 1,
+                    ((long) move->new_shnum - (long) shnum_after_undo)
+                    * gelf_fsize (dso->elf, ELF_T_SHDR, 1, EV_CURRENT));
+
+  if (shdr_after_undo[shstrndxnew].sh_size
+      < dso->shdr[dso->ehdr.e_shstrndx].sh_size)
+    {
+      Elf_Data *data = elf_getdata (dso->scn[dso->ehdr.e_shstrndx], NULL);
+
+      assert (elf_getdata (dso->scn[dso->ehdr.e_shstrndx], data) == NULL);
+      assert (data->d_off == 0);
+      assert (shdr_after_undo[shstrndxnew].sh_size
+             == shdr[dso->ehdr.e_shstrndx].sh_size);
+      assert (data->d_size == dso->shdr[dso->ehdr.e_shstrndx].sh_size);
+      data->d_size = shdr_after_undo[shstrndxnew].sh_size;
+    }
+
+  for (i = 1; i < dso->ehdr.e_shnum; ++i)
+    if (move->new_to_old[i] == -1)
+      dso->shdr[i] = shdr[i];
+    else
+      {
+       if (shdr[i].sh_type == SHT_PROGBITS
+           && dso->shdr[i].sh_type == SHT_NOBITS)
+         {
+           Elf_Data *data = elf_getdata (dso->scn[i], NULL);
+
+           assert (data->d_buf == NULL);
+           data->d_size = shdr[i].sh_size;
+           if (data->d_size)
+             {
+               data->d_buf = calloc (shdr[i].sh_size, 1);
+               if (data->d_buf == NULL)
+                 {
+                   error (0, ENOMEM, "%s: Could not convert NOBITS section into PROGBITS",
+                          dso->filename);
+                   goto error_out;
+                 }
+             }
+           data->d_type = ELF_T_BYTE;
+         }
+       dso->shdr[i].sh_type = shdr[i].sh_type;
+       dso->shdr[i].sh_addr = shdr[i].sh_addr;
+       dso->shdr[i].sh_size = shdr[i].sh_size;
+       dso->shdr[i].sh_offset = shdr[i].sh_offset;
+      }
+
+  for (i = 0; i < dso->ehdr.e_phnum; ++i)
+    if (dso->phdr[i].p_type == PT_LOAD)
+      {
+       GElf_Addr last_offset = dso->phdr[i].p_offset;
+       GElf_Addr adj = 0;
+       int sfirst = 0, slast = 0, last = 0;
+
+       for (j = 1; j < dso->ehdr.e_shnum; ++j)
+         if (dso->shdr[j].sh_addr >= dso->phdr[i].p_vaddr
+             && dso->shdr[j].sh_addr + dso->shdr[j].sh_size
+                <= dso->phdr[i].p_vaddr + dso->phdr[i].p_memsz)
+           {
+             if (dso->shdr[j].sh_type != SHT_NOBITS
+                 || (dso->shdr[j].sh_flags & SHF_TLS))
+               {
+                 if (sfirst)
+                   {
+                     error (0, 0, "%s: NOBITS section followed by non-NOBITS section in the same segment",
+                            dso->filename);
+                     goto error_out;
+                   }
+                 continue;
+               }
+
+             if (!sfirst)
+               sfirst = j;
+             if (strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                                 dso->shdr[j].sh_name), ".plt") == 0)
+               slast = j + 1;
+             else if (j == new_dynbss || j == new_sdynbss)
+               slast = j;
+           }
+
+       if (sfirst && slast)
+         {
+           for (j = sfirst; j < slast; ++j)
+             {
+               Elf_Data *data = elf_getdata (dso->scn[j], NULL);
+
+               assert (data->d_size == dso->shdr[j].sh_size
+                       || j == new_dynbss + 1
+                       || j == new_sdynbss + 1);
+               if (data->d_size)
+                 {
+                   data->d_buf = realloc (data->d_buf, data->d_size);
+                   if (data->d_buf == NULL)
+                     {
+                       error (0, ENOMEM, "%s: Could not convert NOBITS section into PROGBITS",
+                              dso->filename);
+                       goto error_out;
+                     }
+                 }
+               memset (data->d_buf, 0, data->d_size);
+               data->d_type = ELF_T_BYTE;
+               dso->shdr[j].sh_type = SHT_PROGBITS;
+             }
+
+           adj = dso->shdr[slast - 1].sh_addr + dso->shdr[slast - 1].sh_size
+                 - dso->phdr[i].p_vaddr;
+
+           if (adj > dso->phdr[i].p_filesz)
+             {
+               adj -= dso->phdr[i].p_filesz;
+               for (j = slast;
+                    j < dso->ehdr.e_shnum
+                    && (dso->shdr[j].sh_flags
+                        & (SHF_WRITE | SHF_ALLOC | SHF_EXECINSTR));
+                    ++j)
+                 if (dso->shdr[j].sh_addr >= dso->phdr[i].p_vaddr
+                                             + dso->phdr[i].p_memsz)
+                   adj = (adj + dso->shdr[j].sh_addralign - 1)
+                         & ~(dso->shdr[j].sh_addralign - 1);
+
+               dso->phdr[i].p_filesz += adj;
+             }
+           else
+             adj = 0;
+         }
+
+       for (j = 1; j < dso->ehdr.e_shnum; ++j)
+         if (dso->shdr[j].sh_addr >= dso->phdr[i].p_vaddr
+             && dso->shdr[j].sh_addr + dso->shdr[j].sh_size
+                <= dso->phdr[i].p_vaddr + dso->phdr[i].p_memsz)
+           {
+             last = j;
+             if (dso->shdr[j].sh_type == SHT_NOBITS)
+               {
+                 last_offset += dso->shdr[j].sh_addralign - 1;
+                 last_offset &= ~(dso->shdr[j].sh_addralign - 1);
+                 if (last_offset > dso->phdr[i].p_offset
+                                   + dso->phdr[i].p_filesz)
+                   last_offset = dso->phdr[i].p_offset
+                                 + dso->phdr[i].p_filesz;
+                 dso->shdr[j].sh_offset = last_offset;
+               }
+             else if (dso->shdr[j].sh_addr + dso->shdr[j].sh_size
+                      > dso->phdr[i].p_vaddr + dso->phdr[i].p_filesz)
+               {
+                 error (0, 0, "%s: section spans beyond end of segment",
+                        dso->filename);
+                 goto error_out;
+               }
+             else
+               {
+                 dso->shdr[j].sh_offset
+                   = dso->phdr[i].p_offset + dso->shdr[j].sh_addr
+                     - dso->phdr[i].p_vaddr;
+                 last_offset = dso->shdr[j].sh_offset + dso->shdr[j].sh_size;
+               }
+           }
+
+       if (adj)
+         {
+           for (j = i + 1; j < dso->ehdr.e_phnum; ++j)
+             if (dso->phdr[j].p_type == PT_LOAD
+                 && dso->phdr[j].p_vaddr >= dso->shdr[slast - 1].sh_addr)
+               {
+                 dso->phdr[j].p_vaddr += adj;
+                 dso->phdr[j].p_paddr += adj;
+                 dso->phdr[j].p_offset += adj;
+               }
+
+           j = last + 1;
+           while (j < dso->ehdr.e_shnum
+                  && (dso->shdr[j].sh_flags
+                      & (SHF_WRITE | SHF_ALLOC | SHF_EXECINSTR)))
+             {
+               dso->shdr[j].sh_offset += adj;
+               dso->shdr[j++].sh_addr += adj;
+             }
+
+           if (adjust_dso_nonalloc (dso, last + 1,
+                                    dso->shdr[sfirst].sh_offset,
+                                    adj))
+             goto error_out;
+         }
+      }
+
+  /* Adjust .rel*.dyn (or .rel*.*) if necessary.  */
+  assert (new_reloc == -1
+         || (rinfo.last - rinfo.first
+             == (move->old_to_new[rinfo.last]
+                 - move->old_to_new[rinfo.first])));
+  rinfo.first = move->old_to_new[rinfo.first];
+  rinfo.last = move->old_to_new[rinfo.last];
+  assert (new_reloc == -1 || rinfo.first == new[new_reloc]);
+
+  if (rinfo.rel_to_rela)
+    {
+      assert (sizeof (Elf32_Rel) * 3 == sizeof (Elf32_Rela) * 2);
+      assert (sizeof (Elf64_Rel) * 3 == sizeof (Elf64_Rela) * 2);
+      assert (new_reloc != -1);
+      for (j = rinfo.first; j <= rinfo.last; ++j)
+       {
+         dso->shdr[j].sh_size
+           = dso->shdr[j].sh_size / 3 * 2;
+         if (convert_rel_to_rela (dso, j))
+           goto error_out;
+         dso->shdr[j].sh_size = shdr[j].sh_size;
+       }
+    }
+  else if (rinfonew.rel_to_rela)
+    {
+      assert (new_reloc != -1);
+      for (j = rinfo.first; j <= rinfo.last; ++j)
+       {
+         dso->shdr[j].sh_entsize
+           = gelf_fsize (dso->elf, ELF_T_RELA, 1, EV_CURRENT);
+         dso->shdr[j].sh_type = SHT_RELA;
+       }
+    }
+
+  /* Adjust .rel*.plt if necessary.  */
+  rinfo.plt = move->old_to_new[rinfo.plt];
+  if (new_plt != -1)
+    {
+      assert (rinfo.plt == new[new_plt]);
+      if (rinfo.rel_to_rela_plt)
+       {
+         assert (sizeof (Elf32_Rel) * 3 == sizeof (Elf32_Rela) * 2);
+         assert (sizeof (Elf64_Rel) * 3 == sizeof (Elf64_Rela) * 2);
+         dso->shdr[rinfo.first].sh_size
+           = dso->shdr[rinfo.first].sh_size / 3 * 2;
+         if (convert_rel_to_rela (dso, rinfo.plt))
+           goto error_out;
+         dso->shdr[rinfo.plt].sh_size = shdr[rinfo.plt].sh_size;
+       }
+      else if (rinfonew.rel_to_rela_plt)
+       {
+         dso->shdr[rinfo.plt].sh_entsize
+           = gelf_fsize (dso->elf, ELF_T_RELA, 1, EV_CURRENT);
+         dso->shdr[rinfo.plt].sh_type = SHT_RELA;
+       }
+    }
+
+  /* Add new strings into .dynstr if necessary.  */
+  if (new_dynstr != -1)
+    {
+      Elf_Data *data;
+      char *ptr;
+
+      i = new[new_dynstr];
+      data = elf_getdata (dso->scn[i], NULL);
+      assert (data->d_off == 0);
+      data->d_buf = realloc (data->d_buf, dso->shdr[i].sh_size);
+      if (data->d_buf == NULL)
+       {
+         error (0, ENOMEM, "%s: Could not append names needed for .gnu.liblist to .dynstr",
+                dso->filename);
+         goto error_out;
+       }
+      ptr = data->d_buf + shdr_after_undo[dynstrndxnew].sh_size;
+      data->d_size = dso->shdr[i].sh_size;
+      for (j = 0; j < ndeps - 1; ++j)
+       if (liblist[j].l_name == 0)
+         {
+           liblist[j].l_name = ptr - (char *) data->d_buf;
+           ptr = stpcpy (ptr, info->sonames[j + 1]) + 1;
+         }
+      assert (ptr == (char *) data->d_buf + data->d_size);
+    }
+
+  /* Create or update .sdynbss if necessary.  */
+  if (new_sdynbss != -1)
+    {
+      Elf_Data *data;
+
+      if (old_sdynbss == -1)
+       {
+         dso->shdr[new_sdynbss] = dso->shdr[new_sdynbss + 1];
+
+         dso->shdr[new_sdynbss].sh_name = shstrtabadd (dso, ".sdynbss");
+         if (dso->shdr[new_sdynbss].sh_name == 0)
+           goto error_out;
+
+         dso->shdr[new_sdynbss].sh_size =
+           info->sdynbss_base + info->sdynbss_size
+           - dso->shdr[new_sdynbss].sh_addr;
+
+         dso->shdr[new_sdynbss + 1].sh_size
+           -= dso->shdr[new_sdynbss].sh_size;
+         dso->shdr[new_sdynbss + 1].sh_addr
+           += dso->shdr[new_sdynbss].sh_size;
+         dso->shdr[new_sdynbss + 1].sh_offset
+           += dso->shdr[new_sdynbss].sh_size;
+         dso->shdr[new_sdynbss].sh_type = SHT_PROGBITS;
+       }
+      else
+       {
+         if (dso->shdr[new_sdynbss].sh_type != SHT_PROGBITS
+             || dso->shdr[new_sdynbss].sh_addr > info->sdynbss_base
+             || dso->shdr[new_sdynbss].sh_addr
+                + dso->shdr[new_sdynbss].sh_size
+                < info->sdynbss_base + info->sdynbss_size)
+           {
+             error (0, 0, "%s: Copy relocs don't point into .sdynbss section",
+                    dso->filename);
+             goto error_out;
+           }
+       }
+      data = elf_getdata (dso->scn[new_sdynbss], NULL);
+      free (data->d_buf);
+      data->d_buf = info->sdynbss;
+      info->sdynbss = NULL;
+      data->d_off = info->sdynbss_base - dso->shdr[new_sdynbss].sh_addr;
+      data->d_size = info->sdynbss_size;
+      data->d_type = ELF_T_BYTE;
+      if (old_sdynbss == -1)
+       {
+         data = elf_getdata (dso->scn[new_sdynbss + 1], NULL);
+         assert (dso->shdr[new_sdynbss + 1].sh_type != SHT_NOBITS
+                 || data->d_buf == NULL);
+         if (data->d_size != dso->shdr[new_sdynbss + 1].sh_size)
+           {
+             assert (data->d_size == dso->shdr[new_sdynbss].sh_size
+                                     + dso->shdr[new_sdynbss + 1].sh_size);
+             data->d_size -= dso->shdr[new_sdynbss].sh_size;
+           }
+       }
+    }
+
+  /* Create or update .dynbss if necessary.  */
+  if (new_dynbss != -1)
+    {
+      Elf_Data *data;
+
+      if (old_dynbss == -1)
+       {
+         GElf_Addr adj;
+
+         dso->shdr[new_dynbss] = dso->shdr[new_dynbss + 1];
+
+         if (! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                               dso->shdr[new_dynbss + 1].sh_name),
+                       ".sbss")
+             && new_sdynbss == -1)
+           dso->shdr[new_dynbss].sh_name = shstrtabadd (dso, ".sdynbss");
+         else
+           dso->shdr[new_dynbss].sh_name = shstrtabadd (dso, ".dynbss");
+         if (dso->shdr[new_dynbss].sh_name == 0)
+           goto error_out;
+
+         dso->shdr[new_dynbss].sh_size =
+           info->dynbss_base + info->dynbss_size
+           - dso->shdr[new_dynbss].sh_addr;
+
+         dso->shdr[new_dynbss + 1].sh_size
+           -= dso->shdr[new_dynbss].sh_size;
+         dso->shdr[new_dynbss + 1].sh_addr
+           += dso->shdr[new_dynbss].sh_size;
+         dso->shdr[new_dynbss + 1].sh_offset
+           += dso->shdr[new_dynbss].sh_size;
+         dso->shdr[new_dynbss].sh_type = SHT_PROGBITS;
+
+         if (dso->shdr[new_dynbss + 1].sh_type == SHT_NOBITS)
+           {
+             GElf_Addr last_offset;
+
+             for (i = 0; i < dso->ehdr.e_phnum; ++i)
+               if (dso->phdr[i].p_type == PT_LOAD
+                   && dso->phdr[i].p_vaddr <= dso->shdr[new_dynbss].sh_addr
+                   && dso->phdr[i].p_vaddr + dso->phdr[i].p_memsz
+                      >= info->dynbss_base + info->dynbss_size)
+                 break;
+             assert (i < dso->ehdr.e_phnum);
+
+             for (j = new_dynbss - 1; j; --j)
+               {
+                 if (dso->shdr[j].sh_addr < dso->phdr[i].p_vaddr)
+                   break;
+                 if (dso->shdr[j].sh_type == SHT_NOBITS
+                     && (dso->shdr[j].sh_flags & SHF_TLS) == 0)
+                   {
+                     error (0, 0, "%s: COPY relocs not present at start of first SHT_NOBITS section",
+                            dso->filename);
+                     goto error_out;
+                   }
+               }
+
+             if (dso->phdr[i].p_filesz
+                 < info->dynbss_base + info->dynbss_size
+                   - dso->phdr[i].p_vaddr)
+               {
+                 dso->phdr[i].p_filesz =
+                   info->dynbss_base + info->dynbss_size
+                   - dso->phdr[i].p_vaddr;
+                 assert (dso->phdr[i].p_filesz <= dso->phdr[i].p_memsz);
+               }
+
+             adj = dso->phdr[i].p_offset + dso->shdr[new_dynbss].sh_addr
+                   - dso->phdr[i].p_vaddr - dso->shdr[new_dynbss].sh_offset;
+
+             dso->shdr[new_dynbss].sh_offset += adj;
+             dso->shdr[new_dynbss + 1].sh_offset += adj;
+
+             adj += dso->shdr[new_dynbss].sh_size;
+
+             for (j = new_dynbss + 2;
+                  j < dso->ehdr.e_shnum
+                  && (dso->shdr[j].sh_flags
+                      & (SHF_WRITE | SHF_ALLOC | SHF_EXECINSTR));
+                  ++j)
+               if (dso->shdr[j].sh_addr >= dso->phdr[i].p_vaddr
+                                           + dso->phdr[i].p_memsz)
+                 adj = (adj + dso->shdr[j].sh_addralign - 1)
+                       & ~(dso->shdr[j].sh_addralign - 1);
+
+             for (j = i + 1; j < dso->ehdr.e_phnum; ++j)
+               if (dso->phdr[j].p_type == PT_LOAD
+                   && dso->phdr[j].p_vaddr >= dso->shdr[new_dynbss].sh_addr)
+                 {
+                   dso->phdr[j].p_vaddr += adj;
+                   dso->phdr[j].p_paddr += adj;
+                   dso->phdr[j].p_offset += adj;
+                 }
+
+             last_offset = dso->shdr[new_dynbss + 1].sh_offset;
+             for (j = new_dynbss + 2; j < dso->ehdr.e_shnum; ++j)
+               if (dso->shdr[j].sh_type != SHT_NOBITS
+                   || dso->shdr[j].sh_addr < dso->phdr[i].p_vaddr
+                   || dso->shdr[j].sh_addr + dso->shdr[j].sh_size
+                      > dso->phdr[i].p_vaddr + dso->phdr[i].p_memsz)
+                 break;
+               else
+                 {
+                   last_offset += dso->shdr[j].sh_addralign - 1;
+                   last_offset &= ~(dso->shdr[j].sh_addralign - 1);
+                   if (last_offset > dso->phdr[i].p_offset
+                                     + dso->phdr[i].p_filesz)
+                     last_offset = dso->phdr[i].p_offset
+                                   + dso->phdr[i].p_filesz;
+                   dso->shdr[j].sh_offset = last_offset;
+                 }
+
+             while (j < dso->ehdr.e_shnum
+                    && (dso->shdr[j].sh_flags
+                        & (SHF_WRITE | SHF_ALLOC | SHF_EXECINSTR)))
+               {
+                 dso->shdr[j].sh_offset += adj;
+                 dso->shdr[j++].sh_addr += adj;
+               }
+
+             if (adjust_dso_nonalloc (dso, new_dynbss + 2,
+                                      dso->shdr[new_dynbss].sh_offset,
+                                      adj))
+               goto error_out;
+           }
+       }
+      else
+       {
+         if (dso->shdr[new_dynbss].sh_type != SHT_PROGBITS
+             || dso->shdr[new_dynbss].sh_addr > info->dynbss_base
+             || dso->shdr[new_dynbss].sh_addr
+                + dso->shdr[new_dynbss].sh_size
+                < info->dynbss_base + info->dynbss_size)
+           {
+             error (0, 0, "%s: Copy relocs don't point into .dynbss section",
+                    dso->filename);
+             goto error_out;
+           }
+       }
+      data = elf_getdata (dso->scn[new_dynbss], NULL);
+      free (data->d_buf);
+      data->d_buf = info->dynbss;
+      info->dynbss = NULL;
+      data->d_off = info->dynbss_base - dso->shdr[new_dynbss].sh_addr;
+      data->d_size = info->dynbss_size;
+      data->d_type = ELF_T_BYTE;
+      if (old_dynbss == -1)
+       {
+         data = elf_getdata (dso->scn[new_dynbss + 1], NULL);
+         if (dso->shdr[new_dynbss + 1].sh_type == SHT_NOBITS
+             && data->d_buf != NULL)
+           {
+#ifndef NDEBUG
+             char *buf_start = data->d_buf;
+             char *buf_end = buf_start + data->d_size;
+
+             while (buf_start < buf_end)
+               if (*buf_start++)
+                 break;
+             assert (buf_start == buf_end);
+#endif
+             free (data->d_buf);
+             data->d_buf = NULL;
+           }
+         if (data->d_size != dso->shdr[new_dynbss + 1].sh_size)
+           {
+             assert (data->d_size == dso->shdr[new_dynbss].sh_size
+                                     + dso->shdr[new_dynbss + 1].sh_size);
+             data->d_size -= dso->shdr[new_dynbss].sh_size;
+           }
+       }
+    }
+
+  /* Create the liblist.  */
+  i = new[new_liblist];
+  dso->shdr[i].sh_flags = shdr[i].sh_flags;
+  dso->shdr[i].sh_addralign = shdr[i].sh_addralign;
+  dso->shdr[i].sh_entsize = shdr[i].sh_entsize;
+  dso->shdr[i].sh_name = shstrtabadd (dso, ".gnu.liblist");
+  if (dso->shdr[i].sh_name == 0)
+    goto error_out;
+  else
+    {
+      Elf_Data *data;
+
+      dso->shdr[i].sh_link
+       = new_dynstr != -1 ? new[new_dynstr] : move->old_to_new[dynstrndx];
+      data = elf_getdata (dso->scn[i], NULL);
+      data->d_type = ELF_T_WORD;
+      data->d_size = (ndeps - 1) * sizeof (Elf32_Lib);
+      free (data->d_buf);
+      data->d_buf = liblist;
+      liblist = NULL;
+      data->d_off = 0;
+      data->d_align = sizeof (GElf_Word);
+      data->d_version = EV_CURRENT;
+      if (set_dynamic (dso, DT_GNU_LIBLIST, dso->shdr[i].sh_addr, 1))
+       goto error_out;
+      if (set_dynamic (dso, DT_GNU_LIBLISTSZ, dso->shdr[i].sh_size, 1))
+       goto error_out;
+    }
+
+  /* Create the conflict list if necessary.  */
+  if (new_conflict != -1)
+    {
+      Elf_Data *data;
+
+      i = new[new_conflict];
+      data = elf_getdata (dso->scn[i], NULL);
+      data->d_type = ELF_T_RELA;
+      data->d_size = info->conflict_rela_size
+                    * gelf_fsize (dso->elf, ELF_T_RELA, 1, EV_CURRENT);
+      data->d_off = 0;
+      data->d_align = gelf_fsize (dso->elf, ELF_T_ADDR, 1, EV_CURRENT);
+      data->d_version = EV_CURRENT;
+      if (data->d_size)
+       {
+         data->d_buf = realloc (data->d_buf, data->d_size);
+         if (data->d_buf == NULL)
+           {
+             error (0, ENOMEM, "%s: Could not build .gnu.conflict section",
+                    dso->filename);
+             goto error_out;
+           }
+       }
+      else
+       {
+         free (data->d_buf);
+         data->d_buf = NULL;
+       }
+      for (j = 0; j < info->conflict_rela_size; ++j)
+       gelfx_update_rela (dso->elf, data, j, info->conflict_rela + j);
+      free (info->conflict_rela);
+      info->conflict_rela = NULL;
+
+      dso->shdr[i].sh_flags = shdr[i].sh_flags;
+      dso->shdr[i].sh_addralign = shdr[i].sh_addralign;
+      dso->shdr[i].sh_entsize = shdr[i].sh_entsize;
+      for (j = 1; j < dso->ehdr.e_shnum; ++j)
+       if (dso->shdr[j].sh_type == SHT_DYNSYM)
+         break;
+      assert (j < dso->ehdr.e_shnum);
+      dso->shdr[i].sh_link = j;
+      dso->shdr[i].sh_name = shstrtabadd (dso, ".gnu.conflict");
+      if (dso->shdr[i].sh_name == 0)
+       goto error_out;
+      if (set_dynamic (dso, DT_GNU_CONFLICT, dso->shdr[i].sh_addr, 1))
+       goto error_out;
+      if (set_dynamic (dso, DT_GNU_CONFLICTSZ, dso->shdr[i].sh_size, 1))
+       goto error_out;
+    }
+
+  if (undo != -1)
+    {
+      Elf_Scn *scn;
+      Elf_Data *data;
+      GElf_Addr newoffset;
+
+      dso->shdr[undo].sh_name = shstrtabadd (dso, ".gnu.prelink_undo");
+      if (dso->shdr[undo].sh_name == 0)
+       return 1;
+      dso->shdr[undo].sh_offset = dso->shdr[undo - 1].sh_offset;
+      if (dso->shdr[undo - 1].sh_type != SHT_NOBITS)
+       dso->shdr[undo].sh_offset += dso->shdr[undo - 1].sh_size;
+      dso->shdr[undo].sh_entsize = 1;
+      dso->shdr[undo].sh_size = dso->undo.d_size;
+      newoffset = dso->shdr[undo].sh_offset + dso->undo.d_align - 1;
+      newoffset &= ~(dso->shdr[undo].sh_addralign - 1);
+      if (adjust_dso_nonalloc (dso, undo + 1, dso->shdr[undo].sh_offset,
+                              dso->undo.d_size + newoffset
+                              - dso->shdr[undo].sh_offset))
+       return 1;
+      dso->shdr[undo].sh_offset = newoffset;
+      scn = dso->scn[undo];
+      data = elf_getdata (scn, NULL);
+      assert (data != NULL && elf_getdata (scn, data) == NULL);
+      free (data->d_buf);
+      *data = dso->undo;
+      dso->undo.d_buf = NULL;
+    }
+
+  recompute_nonalloc_offsets (dso);
+
+  if (update_dynamic_tags (dso, dso->shdr, old_shdr, move))
+    goto error_out;
+
+  if (update_dynamic_rel (dso, &rinfo))
+    goto error_out;
+
+  free (move);
+  return 0;
+}
diff --git a/src/execle_open.c b/src/execle_open.c
new file mode 100644 (file)
index 0000000..52872aa
--- /dev/null
@@ -0,0 +1,80 @@
+/* Copyright (C) 2001 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <errno.h>
+#include <error.h>
+#include <stdio.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+static pid_t pid;
+
+int
+execve_close (FILE *f)
+{
+  pid_t p;
+  int status;
+
+  if (f != NULL)
+    fclose (f);
+  while ((p = waitpid (pid, &status, 0)) == -1 && errno == EINTR);
+  if (p == -1 || ! WIFEXITED (status))
+    return -1;
+  return WEXITSTATUS (status);
+}
+
+FILE *
+execve_open (const char *path, char *const argv[], char *const envp[])
+{
+  int p[2];
+  FILE *f;
+
+  if (pipe (p) < 0)
+    {
+      error (0, errno, "Could not run %s", path);
+      return NULL;
+    }
+
+  switch (vfork ())
+    {
+    case -1:
+      error (0, errno, "Could not run %s", path);
+      return NULL;
+    case 0:
+      close (p[0]);
+      if (p[1] != 1)
+       {
+         dup2 (p[1], 1);
+         close (p[1]);
+       }
+      dup2 (1, 2);
+      execve (path, argv, envp);
+      _exit (127);
+    }
+
+  close (p[1]);
+
+  f = fdopen (p[0], "r");
+  if (f == NULL)
+    {
+      close (p[0]);
+      execve_close (NULL);
+    }
+
+  return f;
+}
diff --git a/src/execstack.c b/src/execstack.c
new file mode 100644 (file)
index 0000000..1e50aad
--- /dev/null
@@ -0,0 +1,459 @@
+/* Copyright (C) 2003, 2005 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2003.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <locale.h>
+#include <error.h>
+#include <argp.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/wait.h>
+
+#include "prelink.h"
+
+int set;
+int execflag;
+
+const char *argp_program_version = "execstack 1.0";
+
+const char *argp_program_bug_address = "<jakub@redhat.com>";
+
+static char argp_doc[] = "execstack -- program to query or set executable stack flag";
+
+static struct argp_option options[] = {
+  {"set-execstack",    's', 0, 0,  "Set executable stack flag bit" },
+  {"execstack",                's', 0, OPTION_HIDDEN, "" },
+  {"clear-execstack",  'c', 0, 0,  "Clear executable stack flag bit" },
+  {"noexecstack",      'c', 0, OPTION_HIDDEN, "" },
+  {"query",            'q', 0, 0,  "Query executable stack flag bit" },
+  { 0 }
+};
+
+static error_t
+parse_opt (int key, char *arg, struct argp_state *state)
+{
+  switch (key)
+    {
+    case 's':
+      set = 1;
+      execflag = 1;
+      break;
+    case 'c':
+      set = 1;
+      execflag = 0;
+      break;
+    case 'q':
+      set = 0;
+      break;
+    default:
+      return ARGP_ERR_UNKNOWN;
+    }
+  return 0;
+}
+
+static struct argp argp = { options, parse_opt, 0, argp_doc };
+
+static int execstack_set (DSO *dso, int flag);
+
+static void
+execstack_fill_phdr (DSO *dso, int i, int flag)
+{
+  memset (&dso->phdr[i], 0, sizeof (dso->phdr[i]));
+  dso->phdr[i].p_type = PT_GNU_STACK;
+  dso->phdr[i].p_flags = PF_W | PF_R | (flag ? PF_X : 0);
+  dso->phdr[i].p_align = gelf_fsize (dso->elf, ELF_T_ADDR, 1, EV_CURRENT);
+}
+
+static int
+execstack_make_rdwr (DSO *dso, int flag)
+{
+  int i, fd = -1, status;
+  pid_t pid;
+  DSO *ndso = NULL;
+  char *p = NULL;
+  char filename[strlen (dso->filename) + sizeof ".#execstack#.XXXXXX"];
+
+  for (i = 0; i < dso->ehdr.e_shnum; ++i)
+    {
+      const char *name = strptr (dso, dso->ehdr.e_shstrndx,
+                                dso->shdr[i].sh_name);
+      if (strcmp (name, ".gnu.prelink_undo") == 0)
+       break;
+    }
+
+  if (i == dso->ehdr.e_shnum)
+    return reopen_dso (dso, NULL, NULL) ? 1 : -1;
+
+  /* We need to unprelink the file first, so that prelink --undo
+     or reprelinking it doesn't destroy the PT_GNU_STACK segment
+     header we've created.  */
+  sprintf (filename, "%s.#execstack#.XXXXXX", dso->filename);
+
+  fd = mkstemp (filename);
+  if (fd == -1)
+    {
+      error (0, 0, "%s: Cannot create temporary file",
+            dso->filename);
+      goto error_out;
+    }
+
+  p = strdup (dso->filename);
+  if (p == NULL)
+    {
+      error (0, ENOMEM, "%s: Cannot create temporary file",
+            dso->filename);
+      goto error_out;
+    }
+
+  pid = vfork ();
+  if (pid == 0)
+    {
+      close (fd);
+      execlp ("prelink", "prelink", "-u", "-o", filename,
+             dso->filename, NULL);
+      execl (SBINDIR "/prelink", "prelink", "-u", "-o", filename,
+            dso->filename, NULL);
+      _exit (-1);
+    }
+
+  if (pid < 0)
+    {
+      error (0, errno, "%s: Cannot run prelink --undo",
+            dso->filename);
+      goto error_out;
+    }
+
+  if (waitpid (pid, &status, 0) < 0
+      || !WIFEXITED (status)
+      || WEXITSTATUS (status))
+    {
+      error (0, 0, "%s: prelink --undo failed", dso->filename);
+      goto error_out;
+    }
+
+  ndso = open_dso (filename);
+  if (ndso == NULL)
+    {
+      error (0, 0, "%s: Couldn't open prelink --undo output",
+            dso->filename);
+      goto error_out;
+    }
+
+  for (i = 0; i < ndso->ehdr.e_shnum; ++i)
+    {
+      const char *name = strptr (ndso, ndso->ehdr.e_shstrndx,
+                                ndso->shdr[i].sh_name);
+      if (strcmp (name, ".gnu.prelink_undo") == 0)
+       break;
+    }
+
+  if (i != ndso->ehdr.e_shnum)
+    {
+      error (0, 0, "%s: prelink --undo output contains .gnu.prelink_undo section",
+            dso->filename);
+      goto error_out;
+    }
+
+  if (ndso->ehdr.e_type != dso->ehdr.e_type)
+    {
+      error (0, 0, "%s: Object type changed during prelink --undo operation",
+            dso->filename);
+    }
+
+  if (ndso->filename != ndso->soname)
+    free ((char *) ndso->filename);
+  ndso->filename = p;
+  p = NULL;
+
+  unlink (filename);
+  close (fd);
+  fd = -1;
+  close_dso (dso);
+  return execstack_set (ndso, flag);
+
+error_out:
+  free (p);
+  if (ndso != NULL)
+    close_dso (ndso);
+  if (fd != -1)
+    {
+      unlink (filename);
+      close (fd);
+    }
+  close_dso (dso);
+  return 1;
+}
+
+static int
+execstack_set (DSO *dso, int flag)
+{
+  int i, null = -1, last, ret;
+  GElf_Addr lowoff = ~(GElf_Addr) 0, start = 0, align = 0;
+  GElf_Addr adjust;
+
+  for (i = 0; i < dso->ehdr.e_phnum; ++i)
+    if (dso->phdr[i].p_type == PT_GNU_STACK)
+      {
+       /* Found PT_GNU_STACK.  Check if we need any change or not.  */
+       if (flag ^ ((dso->phdr[i].p_flags & PF_X) != 0))
+         {
+           ret = execstack_make_rdwr (dso, flag);
+           if (ret != -1)
+             return ret;
+           dso->phdr[i].p_flags ^= PF_X;
+           goto out_write;
+         }
+       else
+         goto out_close;
+      }
+    else if (dso->phdr[i].p_type == PT_NULL)
+      null = i;
+
+  if (null != -1)
+    {
+      /* Overwrite PT_NULL segment with PT_GNU_STACK.  */
+      ret = execstack_make_rdwr (dso, flag);
+      if (ret != -1)
+       return ret;
+      execstack_fill_phdr (dso, i, flag);
+      goto out_write;
+    }
+
+  if (dso->ehdr.e_shnum == 0)
+    {
+      error (0, 0, "%s: Section header table missing", dso->filename);
+      goto error_out;
+    }
+
+  for (i = 1; i < dso->ehdr.e_shnum; ++i)
+    {
+      if (lowoff > dso->shdr[i].sh_offset)
+       {
+         if (dso->shdr[i].sh_flags & (SHF_WRITE | SHF_ALLOC | SHF_EXECINSTR))
+           {
+             lowoff = dso->shdr[i].sh_offset;
+             start = dso->shdr[i].sh_addr;
+           }
+         else
+           {
+             error (0, 0, "%s: Non-alloced sections before alloced ones",
+                    dso->filename);
+             goto error_out;
+           }
+       }
+
+      if (dso->shdr[i].sh_addralign > align)
+       align = dso->shdr[i].sh_addralign;
+    }
+
+  if (dso->ehdr.e_phoff >= lowoff)
+    {
+      error (0, 0, "%s: Program header table not before all sections",
+            dso->filename);
+      goto error_out;
+    }
+
+  if (dso->ehdr.e_shoff <= lowoff)
+    {
+      error (0, 0, "%s: Section header table before first section",
+            dso->filename);
+      goto error_out;
+    }
+
+  if (dso->ehdr.e_phoff + (dso->ehdr.e_phnum + 1) * dso->ehdr.e_phentsize
+      <= lowoff)
+    {
+      /* There is enough space for the headers even without reshuffling
+        anything.  */
+      for (i = 0; i < dso->ehdr.e_phnum; ++i)
+       if (dso->phdr[i].p_type == PT_PHDR)
+         {
+           if (dso->phdr[i].p_filesz
+               == dso->ehdr.e_phnum * dso->ehdr.e_phentsize)
+             dso->phdr[i].p_filesz += dso->ehdr.e_phentsize;
+           if (dso->phdr[i].p_memsz
+               == dso->ehdr.e_phnum * dso->ehdr.e_phentsize)
+             dso->phdr[i].p_memsz += dso->ehdr.e_phentsize;
+         }
+      i = dso->ehdr.e_phnum++;
+      ret = execstack_make_rdwr (dso, flag);
+      if (ret != -1)
+       return ret;
+      execstack_fill_phdr (dso, i, flag);
+      goto out_write;
+    }
+
+  if (dso->ehdr.e_type != ET_DYN)
+    {
+      error (0, 0, "%s: Reshuffling of objects to make room for\n"
+                  "program header entry only supported for shared libraries",
+            dso->filename);
+      goto error_out;
+    }
+
+  adjust = dso->ehdr.e_phoff + (dso->ehdr.e_phnum + 1) * dso->ehdr.e_phentsize
+          - lowoff;
+  if (align)
+    adjust = (adjust + align - 1) & ~(align - 1);
+
+  /* Need to make sure adjust doesn't cause different Phdr segments
+     to overlap on the same page.  */
+  last = -1;
+  for (i = 0; i < dso->ehdr.e_phnum; ++i)
+    if (dso->phdr[i].p_type == PT_LOAD
+       && dso->phdr[i].p_vaddr + dso->phdr[i].p_memsz >= start)
+      {
+       if (last != -1
+           && (((dso->phdr[last].p_vaddr + dso->phdr[last].p_memsz - 1)
+                ^ dso->phdr[i].p_vaddr)
+               & ~(dso->arch->max_page_size - 1))
+           && !(((dso->phdr[last].p_vaddr + dso->phdr[last].p_memsz
+                  + adjust - 1)
+                 ^ (dso->phdr[i].p_vaddr + adjust))
+                & ~(dso->arch->max_page_size - 1)))
+         {
+           if (align >= dso->arch->max_page_size)
+             {
+               error (0, 0, "%s: Cannot grow reloc sections", dso->filename);
+               goto error_out;
+             }
+           adjust = (adjust + dso->arch->max_page_size - 1)
+                    & ~(dso->arch->max_page_size - 1);
+         }
+       last = i;
+      }
+
+  for (i = 0; i < dso->ehdr.e_phnum; ++i)
+    if (dso->phdr[i].p_type == PT_PHDR)
+      {
+       if (dso->phdr[i].p_filesz == dso->ehdr.e_phnum * dso->ehdr.e_phentsize)
+         dso->phdr[i].p_filesz += dso->ehdr.e_phentsize;
+       if (dso->phdr[i].p_memsz == dso->ehdr.e_phnum * dso->ehdr.e_phentsize)
+         dso->phdr[i].p_memsz += dso->ehdr.e_phentsize;
+      }
+
+  i = dso->ehdr.e_phnum++;
+  ret = execstack_make_rdwr (dso, flag);
+  if (ret != -1)
+    return ret;
+
+  if (adjust_dso (dso, start, adjust))
+    goto error_out;
+
+  execstack_fill_phdr (dso, i, flag);
+
+out_write:
+  if (dynamic_info_is_set (dso, DT_CHECKSUM_BIT)
+      && dso_is_rdwr (dso)
+      && prelink_set_checksum (dso))
+    goto error_out;
+
+  dso->permissive = 1;
+
+  return update_dso (dso, NULL);
+
+out_close:
+  close_dso (dso);
+  return 0;
+
+error_out:
+  close_dso (dso);
+  return 1;
+}
+
+static int
+execstack_query (DSO *dso)
+{
+  int stack = '?', i;
+
+  for (i = 0; i < dso->ehdr.e_phnum; ++i)
+    if (dso->phdr[i].p_type == PT_GNU_STACK)
+      {
+       stack = (dso->phdr[i].p_flags & PF_X) ? 'X' : '-';
+       break;
+      }
+  printf ("%c %s\n", stack, dso->filename);
+  close_dso (dso);
+  return 0;
+}
+
+int
+main (int argc, char *argv[])
+{
+  int remaining, failures = 0;
+
+  setlocale (LC_ALL, "");
+
+  argp_parse (&argp, argc, argv, 0, &remaining, 0);
+
+  elf_version (EV_CURRENT);
+
+  if (remaining == argc)
+    error (EXIT_FAILURE, 0, "no files given");
+
+  while (remaining < argc)
+    {
+      DSO *dso = open_dso (argv[remaining++]);
+      int ret;
+
+      if (dso == NULL)
+       {
+         ++failures;
+         continue;
+       }
+
+      if (dso->ehdr.e_type != ET_DYN
+         && dso->ehdr.e_type != ET_EXEC)
+       {
+         ++failures;
+         error (0, 0, "%s is not a shared library nor executable", dso->filename);
+         continue;
+       }
+
+      if (set)
+       ret = execstack_set (dso, execflag);
+      else
+       ret = execstack_query (dso);
+
+      if (ret)
+       ++failures;
+    }
+
+  return failures;
+}
+
+/* FIXME: Dummy.  When arch dependent files are split into adjust and prelink
+   parts, this can go away.  */
+struct prelink_conflict *
+prelink_conflict (struct prelink_info *info, GElf_Word r_sym, int reloc_type)
+{
+  abort ();
+}
+
+GElf_Rela *
+prelink_conflict_add_rela (struct prelink_info *info)
+{
+  abort ();
+}
+
+GElf_Addr mmap_reg_start;
+GElf_Addr mmap_reg_end;
+int exec_shield;
diff --git a/src/fptr.c b/src/fptr.c
new file mode 100644 (file)
index 0000000..cfe3aed
--- /dev/null
@@ -0,0 +1,465 @@
+/* Copyright (C) 2001, 2002, 2003, 2007 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <errno.h>
+#include <error.h>
+#include "fptr.h"
+
+struct opd_refent;
+
+struct opd_tabent
+{
+  struct opd_ent *ent;
+  struct opd_refent *ref;
+};
+
+struct opd_refent
+{
+  GElf_Addr val;
+  GElf_Addr gp;
+  struct opd_refent *first;
+  struct opd_tabent *tabent;
+  struct opd_refent *next, *nextref;
+  GElf_Word refcnt;
+};
+
+struct opd_fptr
+{
+  /* The first 2 fields have to match opd_refent.  */
+  GElf_Addr val;
+  GElf_Addr gp;
+  struct opd_ent *ent;
+};
+
+static void
+opd_del (void *p)
+{
+  free (p);
+}
+
+static hashval_t
+opd_tabent_hash (const void *p)
+{
+  struct opd_tabent *e = (struct opd_tabent *)p;
+
+  return e->ent->opd;
+}
+
+static int
+opd_tabent_eq (const void *p, const void *q)
+{
+  struct opd_tabent *e = (struct opd_tabent *)p;
+  struct opd_tabent *f = (struct opd_tabent *)q;
+
+  return e->ent == f->ent;
+}
+
+static hashval_t
+opd_refent_hash (const void *p)
+{
+  struct opd_refent *e = (struct opd_refent *)p;
+
+  return e->val ^ (e->val >> 31);
+}
+
+static int
+opd_refent_eq (const void *p, const void *q)
+{
+  struct opd_refent *e = (struct opd_refent *)p;
+  struct opd_refent *f = (struct opd_refent *)q;
+
+  return e->val == f->val && e->gp == f->gp;
+}
+
+static int
+opd_gather_refent (void **p, void *info)
+{
+  struct opd_refent ***ptr = (struct opd_refent ***) info;
+  struct opd_refent *r = *(struct opd_refent **) p, *t;
+
+  for (t = r; t; t = t->next)
+    {
+      *(*ptr)++ = t;
+      t->first = r;
+    }
+  return 1;
+}
+
+static int
+opd_refent_cmp (const void *A, const void *B)
+{
+  struct opd_refent *a = * (struct opd_refent **) A;
+  struct opd_refent *b = * (struct opd_refent **) B;
+
+  if (a->refcnt > b->refcnt)
+    return -1;
+  if (a->refcnt < b->refcnt)
+    return 1;
+  return 0;
+}
+
+int
+opd_init (struct prelink_info *info)
+{
+  int i, j, nrefent = 0;
+  struct opd_lib *l;
+  struct opd_refent refent, *r, **refarr, **a;
+  struct opd_tabent tabent, *t;
+  void **tabslot;
+  htab_t tabent_htab = NULL, refent_htab = NULL;
+
+  l = calloc (sizeof (struct opd_lib), 1);
+  if (l == NULL)
+    goto error_mem;
+  l->nrefs = (info->symtab_end - info->symtab_start) / info->symtab_entsize;
+  if (l->nrefs)
+    {
+      l->u.refp = calloc (l->nrefs, sizeof (struct opd_ref *));
+      if (l->u.refp == NULL)
+       goto error_mem;
+    }
+  else
+    l->u.refp = NULL;
+  tabent_htab = htab_try_create (100, opd_tabent_hash, opd_tabent_eq, opd_del);
+  refent_htab = htab_try_create (100, opd_refent_hash, opd_refent_eq, opd_del);
+  l->htab = htab_try_create (100, opd_refent_hash, opd_refent_eq, opd_del);
+  if (tabent_htab == NULL || refent_htab == NULL || l->htab == NULL)
+    goto error_mem;
+
+  for (i = 0; i < info->ent->ndepends; ++i)
+    {
+      struct prelink_entry *ent;
+      struct prelink_conflict *conflict;
+      struct opd_lib *ol;
+      size_t maxidx = 1;
+
+      ent = info->ent->depends[i];
+      ol = ent->opd;
+      if (info->conflicts[i + 1].hash != &info->conflicts[i + 1].first)
+       maxidx = 251;
+      for (j = 0; j < ol->nrefs; ++j)
+       {
+         GElf_Addr symoff = ol->u.refs[j].symoff;
+         refent.val = ol->u.refs[j].ent->val;
+         refent.gp = ol->u.refs[j].ent->gp;
+         for (conflict = info->conflicts[i + 1].hash[symoff % maxidx]; conflict;
+              conflict = conflict->next)
+           {
+             if (conflict->symoff == symoff
+                 && conflict->reloc_class != RTYPE_CLASS_COPY
+                 && conflict->reloc_class != RTYPE_CLASS_TLS)
+               break;
+           }
+
+         if (conflict)
+           {
+             if (refent.val
+                 != conflict->conflict.ent->base + conflict->conflictval
+                 || refent.gp != conflict->conflict.ent->pltgot)
+               {
+                 error (0, 0, "%s: OPD value changed during prelinking",
+                        info->ent->filename);
+                 goto error_out;
+               }
+
+             refent.val = conflict->lookup.ent->base + conflict->lookupval;
+             refent.gp = conflict->lookup.ent->pltgot;
+           }
+
+         if (ol->u.refs[j].ent->opd & OPD_ENT_PLT)
+           {
+             struct opd_ent_plt *entp
+               = (struct opd_ent_plt *) ol->u.refs[j].ent;
+             int k;
+             size_t idx = 0;
+
+             for (k = 0; k < info->ent->ndepends; ++k)
+               if (info->ent->depends[k] == entp->lib)
+                 break;
+
+             assert (k < info->ent->ndepends);
+
+             if (info->conflicts[k + 1].hash != &info->conflicts[k + 1].first)
+               idx = entp->symoff % 251;
+             for (conflict = info->conflicts[k + 1].hash[idx]; conflict;
+                  conflict = conflict->next)
+               {
+                 if (conflict->symoff == entp->symoff
+                     && conflict->reloc_class == RTYPE_CLASS_PLT)
+                   break;
+               }
+
+             if (conflict)
+               {
+                 if (ol->u.refs[j].ent->val
+                     != conflict->conflict.ent->base + conflict->conflictval
+                     || ol->u.refs[j].ent->gp
+                        != conflict->conflict.ent->pltgot)
+                   {
+                     error (0, 0, "%s: OPD value changed during prelinking",
+                            info->ent->filename);
+                     goto error_out;
+                   }
+
+                 /* FPTR originally pointed into .plt, but since they
+                    now resolve to different values, this cannot be used.  */
+                 if (refent.val
+                     != conflict->lookup.ent->base + conflict->lookupval
+                     || refent.gp != conflict->lookup.ent->pltgot)
+                   continue;
+               }
+             else if (refent.val != ol->u.refs[j].ent->val
+                      || refent.gp != ol->u.refs[j].ent->gp)
+               continue;
+           }
+
+         tabslot = htab_find_slot (refent_htab, &refent, INSERT);
+         if (tabslot == NULL)
+           goto error_mem;
+
+         if (*tabslot != NULL)
+           {
+             for (r = (struct opd_refent *) *tabslot; r; r = r->next)
+               if (r->tabent->ent == ol->u.refs[j].ent)
+                 {
+                   r->refcnt += ol->u.refs[j].refcnt;
+                   break;
+                 }
+
+             if (r)
+               continue;
+           }
+
+         r = (struct opd_refent *) calloc (sizeof (struct opd_refent), 1);
+         if (r == NULL)
+           goto error_mem;
+
+         ++nrefent;
+         r->next = (struct opd_refent *) *tabslot;
+         *tabslot = r;
+         r->val = refent.val;
+         r->gp = refent.gp;
+         r->refcnt = ol->u.refs[j].refcnt;
+
+         tabent.ent = ol->u.refs[j].ent;
+
+         tabslot = htab_find_slot (tabent_htab, &tabent, INSERT);
+         if (tabslot == NULL)
+           goto error_mem;
+
+         if (*tabslot != NULL)
+           {
+             t = (struct opd_tabent *) *tabslot;
+             t->ref->nextref = r;
+             r->nextref = t->ref;
+           }
+         else
+           {
+             t = (struct opd_tabent *) calloc (sizeof (struct opd_tabent), 1);
+             if (t == NULL)
+               goto error_mem;
+             t->ent = ol->u.refs[j].ent;
+             *tabslot = t;
+             r->nextref = r;
+             t->ref = r;
+           }
+
+         r->tabent = t;
+       }
+    }
+
+  refarr = alloca (nrefent * sizeof (struct opd_refent *));
+  a = refarr;
+  htab_traverse (refent_htab, opd_gather_refent, &a);
+  assert (a == refarr + nrefent);
+  qsort (refarr, nrefent, sizeof (struct opd_refent *), opd_refent_cmp);
+  for (i = 0; i < nrefent; ++i)
+    {
+      struct opd_fptr *f;
+
+      if (refarr[i]->tabent == NULL)
+       continue;
+
+      f = (struct opd_fptr *) calloc (sizeof (struct opd_fptr), 1);
+      if (f == NULL)
+       goto error_mem;
+
+      f->val = refarr[i]->val;
+      f->gp = refarr[i]->gp;
+      f->ent = refarr[i]->tabent->ent;
+      tabslot = htab_find_slot (l->htab, f, INSERT);
+      if (tabslot == NULL)
+       goto error_mem;
+
+      *tabslot = f;
+      r = refarr[i]->tabent->ref;
+      do
+       {
+         if (r != refarr[i])
+           r->tabent = NULL;
+         r = r->nextref;
+       }
+      while (r != refarr[i]->tabent->ref);
+
+      for (r = refarr[i]->first; r; r = r->next)
+       r->tabent = NULL;
+    }
+
+  htab_delete (tabent_htab);
+  htab_delete (refent_htab);
+  info->ent->opd = l;
+  return 0;
+
+error_mem:
+  error (0, ENOMEM, "%s: Could not create OPD table",
+        info->ent->filename);
+error_out:
+  if (tabent_htab)
+    htab_delete (tabent_htab);
+  if (refent_htab)
+    htab_delete (refent_htab);
+  if (l && l->htab)
+    htab_delete (l->htab);
+  free (l);
+  return 1;
+}
+
+int
+opd_add (struct prelink_info *info, GElf_Word r_sym, int reloc_type)
+{
+  struct opd_fptr *f, fp;
+  void **tabslot;
+  struct opd_lib *l = info->ent->opd;
+
+  if (l->u.refp[r_sym] != NULL)
+    {
+      ++l->u.refp[r_sym]->refcnt;
+      return 0;
+    }
+
+  if (ELF64_ST_BIND (info->symtab [r_sym].st_info)
+      == STB_LOCAL)
+    {
+      fp.val = info->symtab [r_sym].st_value;
+      fp.gp = info->ent->pltgot;
+    }
+  else
+    {
+      fp.val = info->resolve (info, r_sym, reloc_type);
+      if (info->resolveent == NULL)
+       return 0;
+      fp.gp = info->resolveent->pltgot;
+    }
+
+  l->u.refp[r_sym] = malloc (sizeof (struct opd_ref));
+  if (l->u.refp[r_sym] == NULL)
+    goto error_mem;
+  l->u.refp[r_sym]->symoff = r_sym;
+  l->u.refp[r_sym]->refcnt = 1;
+  l->u.refp[r_sym]->ent = NULL;
+
+  tabslot = htab_find_slot (l->htab, &fp, INSERT);
+  if (tabslot == NULL)
+    goto error_mem;
+
+  if (*tabslot == NULL)
+    {
+      f = calloc (sizeof (struct opd_fptr), 1);
+      if (f == NULL)
+       goto error_mem;
+      f->val = fp.val;
+      f->gp = fp.gp;
+      *tabslot = f;
+    }
+
+  l->u.refp[r_sym]->ent = *tabslot;
+  return 0;
+
+error_mem:
+  error (0, ENOMEM, "%s: Could not create OPD table",
+        info->ent->filename);
+  return 1;
+}
+
+void
+opd_note_plt (struct prelink_info *info, GElf_Word r_sym, int reloc_type,
+             GElf_Addr r_offset)
+{
+  struct opd_fptr *f, fp;
+  struct opd_lib *l = info->ent->opd;
+  struct opd_ent_plt *entp;
+
+  if (ELF64_ST_BIND (info->symtab [r_sym].st_info)
+      == STB_LOCAL)
+    {
+      fp.val = info->symtab [r_sym].st_value;
+      fp.gp = info->ent->pltgot;
+    }
+  else
+    {
+      fp.val = info->resolve (info, r_sym, reloc_type);
+      if (info->resolveent == NULL)
+       return;
+      fp.gp = info->resolveent->pltgot;
+    }
+
+  f = (struct opd_fptr *) htab_find (l->htab, &fp);
+  if (f == NULL || f->ent != NULL)
+    return;
+
+  entp = calloc (sizeof (struct opd_ent_plt), 1);
+  if (entp == NULL)
+    return;
+
+  entp->v.val = fp.val;
+  entp->v.gp = fp.gp;
+  entp->v.opd = (r_offset - l->plt_start) | (OPD_ENT_PLT | OPD_ENT_NEW);
+  entp->lib = info->ent;
+  entp->symoff = r_sym;
+  f->ent = &entp->v;
+}
+
+GElf_Addr
+opd_size (struct prelink_info *info, GElf_Word entsize)
+{
+  struct opd_lib *l = info->ent->opd;
+  int i;
+  GElf_Addr ret = 0;
+  struct opd_ent *e;
+  struct opd_fptr *f;
+
+  for (i = 0; i < l->nrefs; ++i)
+    if ((f = (struct opd_fptr *) l->u.refp[i]->ent)->ent == NULL)
+      {
+       e = calloc (sizeof (struct opd_ent), 1);
+       if (e == NULL)
+         {
+           error (0, ENOMEM, "%s: Could not create OPD table",
+                  info->ent->filename);
+           return -1;
+         }
+
+       e->val = f->val;
+       e->gp = f->gp;
+       e->opd = ret | OPD_ENT_NEW;
+       ret += entsize;
+      }
+
+  return ret;
+}
diff --git a/src/fptr.h b/src/fptr.h
new file mode 100644 (file)
index 0000000..36ef7c6
--- /dev/null
@@ -0,0 +1,67 @@
+/* Copyright (C) 2001 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifndef FPTR_H
+#define FPTR_H
+
+#include "prelink.h"
+#include "hashtab.h"
+
+struct opd_ent
+{
+  GElf_Addr val;
+  GElf_Addr gp;
+  GElf_Addr opd;
+#define OPD_ENT_PLT 1
+#define OPD_ENT_NEW 2
+};
+
+struct opd_ent_plt
+{
+  struct opd_ent v;
+  struct prelink_entry *lib;
+  GElf_Word symoff;
+};
+
+struct opd_ref
+{
+  GElf_Word symoff;
+  GElf_Word refcnt;
+  struct opd_ent *ent;
+};
+
+struct opd_lib
+{
+  GElf_Addr symtab_start;
+  GElf_Addr opd_start;
+  GElf_Addr plt_start;
+  union
+    {
+      struct opd_ref *refs;
+      struct opd_ref **refp;
+    } u;
+  htab_t htab;
+  int nrefs;
+};
+
+int opd_init (struct prelink_info *info);
+int opd_add (struct prelink_info *info, GElf_Word r_sym, int reloc_type);
+void opd_note_plt (struct prelink_info *info, GElf_Word r_sym, int reloc_type,
+                  GElf_Addr r_offset);
+GElf_Addr opd_size (struct prelink_info *info, GElf_Word entsize);
+
+#endif /* FPTR_H */
diff --git a/src/gather.c b/src/gather.c
new file mode 100644 (file)
index 0000000..2752e4b
--- /dev/null
@@ -0,0 +1,1410 @@
+/* Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <fnmatch.h>
+#include <ftw.h>
+#include <glob.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "prelinktab.h"
+#include "reloc.h"
+
+#ifndef HAVE_FTW_ACTIONRETVAL
+# define FTW_ACTIONRETVAL      0
+# define FTW_CONTINUE          0
+# define FTW_STOP              1
+#endif
+
+static int gather_lib (struct prelink_entry *ent);
+static int implicit;
+
+static struct prelink_dir *dirs;
+static struct prelink_dir *blacklist;
+#ifndef HAVE_FTW_ACTIONRETVAL
+static char *blacklist_dir;
+static size_t blacklist_dir_len;
+#endif
+static struct extension
+{
+  const char *ext;
+  size_t len;
+  int is_glob;
+} *blacklist_ext;
+static int blacklist_next;
+
+static int
+gather_deps (DSO *dso, struct prelink_entry *ent)
+{
+  int i, j, seen = 0;
+  FILE *f = NULL;
+  const char *argv[5];
+  const char *envp[4];
+  char *line = NULL, *p, *q = NULL;
+  const char **depends = NULL;
+  size_t ndepends = 0, ndepends_alloced = 0;
+  size_t len = 0;
+  ssize_t n;
+  Elf_Scn *scn;
+  Elf_Data *data;
+  Elf32_Lib *liblist = NULL;
+  int nliblist = 0;
+  const char *dl;
+  const char *ent_filename;
+
+  if (check_dso (dso))
+    {
+      if (! undo)
+       ent->type = ET_UNPRELINKABLE;
+      goto error_out;
+    }
+
+  ent->pltgot = dso->info[DT_PLTGOT];
+  ent->soname = strdup (dso->soname);
+  ent->flags = (dso->arch->class == ELFCLASS64 ? PCF_ELF64 : 0)
+              | (dso->arch->machine & PCF_MACHINE);
+  if (ent->soname == NULL)
+    {
+      error (0, ENOMEM, "%s: Could not record SONAME", ent->filename);
+      goto error_out;
+    }
+
+  dl = dynamic_linker ?: dso->arch->dynamic_linker;
+  if (strcmp (dso->filename, dl) == 0
+      || is_ldso_soname (dso->soname))
+    {
+      if (dynamic_info_is_set (dso, DT_GNU_PRELINKED_BIT)
+         && dynamic_info_is_set (dso, DT_CHECKSUM_BIT))
+       {
+         if (! undo && dso->arch->read_opd)
+           dso->arch->read_opd (dso, ent);
+         ent->done = 2;
+       }
+      close_dso (dso);
+      return 0;
+    }
+
+  for (i = 1; i < dso->ehdr.e_shnum; ++i)
+    {
+      const char *name;
+      if (dso->shdr[i].sh_type == SHT_GNU_LIBLIST
+         && (name = strptr (dso, dso->ehdr.e_shstrndx, dso->shdr[i].sh_name))
+         && ! strcmp (name, ".gnu.liblist")
+         && (dso->shdr[i].sh_size % sizeof (Elf32_Lib)) == 0)
+       {
+         nliblist = dso->shdr[i].sh_size / sizeof (Elf32_Lib);
+         liblist = (Elf32_Lib *) alloca (dso->shdr[i].sh_size);
+         scn = dso->scn[i];
+         data = elf_getdata (scn, NULL);
+         if (data == NULL || elf_getdata (scn, data)
+             || data->d_buf == NULL || data->d_off
+             || data->d_size != dso->shdr[i].sh_size)
+           liblist = NULL;
+         else
+           memcpy (liblist, data->d_buf, dso->shdr[i].sh_size);
+         if (! undo)
+           break;
+       }
+      else if (undo
+              && dso->shdr[i].sh_type == SHT_PROGBITS
+              && (name = strptr (dso, dso->ehdr.e_shstrndx,
+                                 dso->shdr[i].sh_name))
+              && ! strcmp (name, ".gnu.prelink_undo"))
+       ent->done = 2;
+    }
+
+  if (! undo && dso->arch->read_opd)
+    dso->arch->read_opd (dso, ent);
+  close_dso (dso);
+  dso = NULL;
+
+  i = 0;
+  argv[i++] = dl;
+  if (ld_library_path)
+    {
+      argv[i++] = "--library-path";
+      argv[i++] = ld_library_path;
+    }
+  if (strchr (ent->filename, '/') != NULL)
+    ent_filename = ent->filename;
+  else
+    {
+      size_t flen = strlen (ent->filename);
+      char *tp = alloca (2 + flen + 1);
+      memcpy (tp, "./", 2);
+      memcpy (tp + 2, ent->filename, flen + 1);
+      ent_filename = tp;
+    }
+  argv[i++] = ent_filename;
+  argv[i] = NULL;
+  envp[0] = "LD_TRACE_LOADED_OBJECTS=1";
+  envp[1] = "LD_TRACE_PRELINKING=1";
+  envp[2] = "LD_WARN=";
+  envp[3] = NULL;
+  f = execve_open (dl, (char * const *)argv, (char * const *)envp);
+  if (f == NULL)
+    goto error_out;
+
+  do
+    {
+      n = getline (&line, &len, f);
+      if (n < 0)
+       break;
+
+      if (line[n - 1] == '\n')
+       line[n - 1] = '\0';
+
+      p = strstr (line, " => ");
+      if (p)
+       {
+         q = strstr (p, " (");
+         if (q == NULL && strcmp (p, " => not found") == 0)
+           {
+             error (0, 0, "%s: Could not find one of the dependencies",
+                    ent->filename);
+             goto error_out;
+           }
+       }
+      if (p == NULL || q == NULL)
+       {
+         if (strstr (line, "statically linked") != NULL)
+           error (0, 0, "%s: Library without dependencies", ent->filename);
+         else
+           {
+             p = strstr (line, "error while loading shared libraries: ");
+             if (p != NULL)
+               {
+                 p += sizeof "error while loading shared libraries: " - 1;
+                 q = strstr (line, "cannot open shared object file: "
+                                   "No such file or directory");
+                 if (q != NULL)
+                   {
+                     error (0, 0,
+                            "%s: Could not find one of the dependencies",
+                            ent->filename);
+                     goto error_out;
+                   }
+               }
+             error (0, 0, "%s: Could not parse `%s'", ent->filename, line);
+           }
+         goto error_out;
+       }
+
+      *p = '\0';
+      p += sizeof " => " - 1;
+      *q = '\0';
+      if (! strcmp (p, ent_filename))
+       {
+         ++seen;
+         continue;
+       }
+      if (ndepends == ndepends_alloced)
+       {
+         ndepends_alloced += 10;
+         depends =
+           (const char **) realloc (depends,
+                                    ndepends_alloced * sizeof (char *));
+         if (depends == NULL)
+           {
+             error (0, ENOMEM, "%s: Could not record dependencies",
+                    ent->filename);
+             goto error_out;
+           }
+       }
+
+      depends[ndepends] = strdupa (p);
+      ++ndepends;
+    } while (!feof (f));
+
+  if (execve_close (f))
+    {
+      f = NULL;
+      error (0, 0, "%s: Dependency tracing failed", ent->filename);
+      goto error_out;
+    }
+
+  f = NULL;
+  if (seen != 1)
+    {
+      error (0, 0, "%s seen %d times in LD_TRACE_PRELINKING output, expected once",
+            ent->filename, seen);
+      goto error_out;
+    }
+
+  free (line);
+  line = NULL;
+
+  if (ndepends == 0)
+    ent->depends = NULL;
+  else
+    {
+      ent->depends =
+       (struct prelink_entry **)
+       malloc (ndepends * sizeof (struct prelink_entry *));
+      if (ent->depends == NULL)
+       {
+         error (0, ENOMEM, "%s: Could not record dependencies", ent->filename);
+         goto error_out;
+       }
+    }
+
+  ent->ndepends = ndepends;
+  char *cache_dyn_depends = NULL;
+  if (ndepends)
+    {
+      cache_dyn_depends = alloca (ndepends);
+      memset (cache_dyn_depends, '\0', ndepends);
+    }
+  for (i = 0; i < ndepends; ++i)
+    {
+      ent->depends[i] = prelink_find_entry (depends [i], NULL, 1);
+      if (ent->depends[i] == NULL)
+       goto error_out_free_depends;
+
+      if (ent->depends[i]->type == ET_CACHE_DYN)
+       {
+         ent->depends[i]->type = ET_NONE;
+         free (ent->depends[i]->depends);
+         ent->depends[i]->depends = NULL;
+         ent->depends[i]->ndepends = 0;
+         cache_dyn_depends[i] = 1;
+       }
+
+      if (ent->depends[i]->type != ET_NONE
+         && ent->depends[i]->type != ET_BAD
+         && ent->depends[i]->type != ET_DYN
+         && ent->depends[i]->type != ET_UNPRELINKABLE)
+       {
+         error (0, 0, "%s is not a shared library", depends [i]);
+error_out_regather_libs:
+         for (i = 0; i < ndepends; ++i)
+           {
+             if (cache_dyn_depends[i] && ent->depends[i]->type == ET_NONE)
+               gather_lib (ent->depends[i]);
+           }
+         goto error_out_free_depends;
+       }
+    }
+
+  free (depends);
+  depends = NULL;
+
+  for (i = 0; i < ndepends; ++i)
+    if (ent->depends[i]->type == ET_NONE
+       && gather_lib (ent->depends[i]))
+      {
+       cache_dyn_depends[i] = 0;
+       goto error_out_regather_libs;
+      }
+
+  for (i = 0; i < ndepends; ++i)
+    for (j = 0; j < ent->depends[i]->ndepends; ++j)
+      if (ent->depends[i]->depends[j] == ent)
+       {
+         error (0, 0, "%s has a dependency cycle", ent->canon_filename);
+         goto error_out_free_depends;
+       }
+
+  for (i = 0; i < ndepends; ++i)
+    if (ent->depends[i]->type == ET_UNPRELINKABLE)
+      {
+       error (0, 0, "Could not prelink %s because its dependency %s could not be prelinked",
+              ent->filename, ent->depends[i]->filename);
+       ent->type = ET_UNPRELINKABLE;
+       goto error_out;
+      }
+
+  if (! undo && (!nliblist || liblist) && nliblist == ndepends)
+    {
+      for (i = 0; i < ndepends; ++i)
+       if (liblist[i].l_time_stamp != ent->depends[i]->timestamp
+           || liblist[i].l_checksum != ent->depends[i]->checksum
+           || ! ent->depends[i]->done)
+         break;
+
+      if (i == ndepends)
+       ent->done = 2;
+    }
+
+  return 0;
+
+error_out_free_depends:
+  free (ent->depends);
+  ent->depends = NULL;
+  ent->ndepends = 0;
+error_out:
+  if (f)
+    execve_close (f);
+  free (line);
+  free (depends);
+  if (dso)
+    close_dso (dso);
+  return 1;
+}
+
+static int
+gather_dso (DSO *dso, struct prelink_entry *ent)
+{
+  int prelinked;
+
+  if (verbose > 5)
+    printf ("Checking shared library %s\n", ent->canon_filename);
+
+  if (dso->ehdr.e_type != ET_DYN)
+    {
+      error (0, 0, "%s is not a shared library", ent->filename);
+      close_dso (dso);
+      return 1;
+    }
+
+  prelinked = (dynamic_info_is_set (dso, DT_GNU_PRELINKED_BIT)
+              && dynamic_info_is_set (dso, DT_CHECKSUM_BIT));
+  ent->timestamp = dso->info_DT_GNU_PRELINKED;
+  ent->checksum = dso->info_DT_CHECKSUM;
+  ent->base = dso->base;
+  ent->end = dso->end;
+  if (dso->arch->need_rel_to_rela != NULL && ! prelinked)
+    {
+      /* If the library has not been prelinked yet and we need
+        to convert REL to RELA, then make room for it.  */
+      struct reloc_info rinfo;
+      GElf_Addr adjust = 0;
+      int sec = dso->ehdr.e_shnum;
+
+      if (find_reloc_sections (dso, &rinfo))
+       {
+         close_dso (dso);
+         return 1;
+       }
+
+      assert (sizeof (Elf32_Rel) * 3 == sizeof (Elf32_Rela) * 2);
+      assert (sizeof (Elf64_Rel) * 3 == sizeof (Elf64_Rela) * 2);
+      if (rinfo.rel_to_rela)
+       {
+         sec = rinfo.first;
+         adjust = (dso->shdr[rinfo.last].sh_addr
+                   + dso->shdr[rinfo.last].sh_size
+                   - dso->shdr[rinfo.first].sh_addr) / 2;
+       }
+      if (rinfo.rel_to_rela_plt)
+       {
+         if (rinfo.plt < sec)
+           sec = rinfo.plt;
+         adjust += dso->shdr[rinfo.plt].sh_size / 2;
+       }
+      if (adjust)
+       {
+         int align = 0, i, last;
+         GElf_Addr start;
+
+         for (i = rinfo.plt ? rinfo.plt : rinfo.first;
+              i < dso->ehdr.e_shnum; i++)
+           {
+             if (dso->shdr[i].sh_addralign > align)
+               align = dso->shdr[i].sh_addralign;
+           }
+
+         if (rinfo.plt)
+           start = dso->shdr[rinfo.plt].sh_addr
+                   + dso->shdr[rinfo.plt].sh_size;
+         else
+           start = dso->shdr[rinfo.first].sh_addr
+                   + dso->shdr[rinfo.first].sh_size;
+
+         /* Need to make sure that all the remaining sections are properly
+            aligned.  */
+         if (align)
+           adjust = (adjust + align - 1) & ~(align - 1);
+
+         /* Need to make sure adjust doesn't cause different Phdr segments
+            to overlap on the same page.  */
+         last = -1;
+         for (i = 0; i < dso->ehdr.e_phnum; ++i)
+           if (dso->phdr[i].p_type == PT_LOAD
+               && dso->phdr[i].p_vaddr + dso->phdr[i].p_memsz >= start)
+             {
+               if (last != -1
+                   && (((dso->phdr[last].p_vaddr + dso->phdr[last].p_memsz
+                         - 1) ^ dso->phdr[i].p_vaddr)
+                       & ~(dso->arch->max_page_size - 1))
+                   && !(((dso->phdr[last].p_vaddr + dso->phdr[last].p_memsz
+                          + adjust - 1)
+                         ^ (dso->phdr[i].p_vaddr + adjust))
+                        & ~(dso->arch->max_page_size - 1)))
+                 {
+                   if (align >= dso->arch->max_page_size)
+                     {
+                       error (0, 0, "%s: Cannot grow reloc sections",
+                              ent->filename);
+                       close_dso (dso);
+                       return 1;
+                     }
+                   adjust = (adjust + dso->arch->max_page_size - 1)
+                            & ~(dso->arch->max_page_size - 1);
+                 }
+               last = i;
+             }
+
+         ent->end += adjust;
+       }
+    }
+
+  if (gather_deps (dso, ent))
+    return 1;
+
+  if (ent->done && ! prelinked && ! undo)
+    ent->done = 0;
+  ent->type = ET_DYN;
+  return 0;
+}
+
+static int
+gather_lib (struct prelink_entry *ent)
+{
+  DSO *dso;
+
+  ent->type = ET_BAD;
+  dso = open_dso (ent->filename);
+  if (dso == NULL)
+    return 1;
+
+  return gather_dso (dso, ent);
+}
+
+static int
+gather_exec (DSO *dso, const struct stat64 *st)
+{
+  int i, j;
+  Elf_Data *data;
+  const char *dl;
+  struct prelink_entry *ent;
+
+  if (verbose > 5)
+    printf ("Checking executable %s\n", dso->filename);
+
+  for (i = 0; i < dso->ehdr.e_phnum; ++i)
+    if (dso->phdr[i].p_type == PT_INTERP)
+      break;
+
+  /* If there are no PT_INTERP segments, it is statically linked.  */
+  if (i == dso->ehdr.e_phnum)
+    {
+make_unprelinkable:
+      if (undo)
+       goto error_out;
+
+      ent = prelink_find_entry (dso->filename, st, 1);
+      if (ent == NULL)
+       goto error_out;
+
+      assert (ent->type == ET_NONE);
+      ent->type = ET_UNPRELINKABLE;
+      if (dso)
+       close_dso (dso);
+      return 0;
+    }
+
+  j = addr_to_sec (dso, dso->phdr[i].p_vaddr);
+  if (j == -1 || dso->shdr[j].sh_addr != dso->phdr[i].p_vaddr
+      || dso->shdr[j].sh_type != SHT_PROGBITS)
+    {
+      error (0, 0, "%s: PT_INTERP segment not corresponding to .interp section",
+            dso->filename);
+      goto make_unprelinkable;
+    }
+
+  data = elf_getdata (dso->scn[j], NULL);
+  if (data == NULL)
+    {
+      error (0, 0, "%s: Could not read .interp section", dso->filename);
+      goto error_out;
+    }
+
+  i = strnlen (data->d_buf, data->d_size);
+  if (i == data->d_size)
+    {
+      error (0, 0, "%s: .interp section not zero terminated", dso->filename);
+      goto error_out;
+    }
+
+  dl = dynamic_linker ?: dso->arch->dynamic_linker;
+  if (strcmp (dl, data->d_buf) != 0)
+    {
+      error (0, 0, "%s: Using %s, not %s as dynamic linker", dso->filename,
+            (char *) data->d_buf, dl);
+      goto error_out;
+    }
+
+  ent = prelink_find_entry (dso->filename, st, 1);
+  if (ent == NULL)
+    goto error_out;
+
+  assert (ent->type == ET_NONE);
+  ent->u.explicit = 1;
+
+  if (gather_deps (dso, ent))
+    return 0;
+
+  for (i = 0; i < ent->ndepends; ++i)
+    ++ent->depends[i]->refs;
+
+  ent->type = ET_EXEC;
+  return 0;
+
+error_out:
+  if (dso)
+    close_dso (dso);
+  return 0;
+}
+
+static int
+add_dir_to_dirlist (const char *name, dev_t dev, int flags)
+{
+  const char *canon_name;
+  struct prelink_dir *dir;
+  size_t len;
+
+  canon_name = prelink_canonicalize (name, NULL);
+  if (canon_name == NULL)
+    {
+      if (! all && implicit)
+       return 0;
+      error (0, errno, "Could not record directory %s", name);
+      return 1;
+    }
+
+  len = strlen (canon_name);
+
+  for (dir = blacklist; dir; dir = dir->next)
+    if (((dir->flags != FTW_CHDIR && len >= dir->len)
+        || (dir->flags == FTW_CHDIR && len == dir->len))
+       && strncmp (dir->dir, canon_name, dir->len) == 0)
+      {
+       if (dir->flags == FTW_CHDIR)
+         break;
+       if ((dir->flags & FTW_MOUNT) && dir->dev != dev)
+         continue;
+       break;
+      }
+
+  if (dir != NULL)
+    {
+      free ((char *) canon_name);
+      return 2;
+    }
+
+  dir = malloc (sizeof (struct prelink_dir) + len + 1);
+  if (dir == NULL)
+    {
+      error (0, ENOMEM, "Could not record directory %s", name);
+      free ((char *) canon_name);
+      return 1;
+    }
+
+  dir->next = dirs;
+  dir->flags = flags;
+  dir->dev = dev;
+  dir->len = len;
+  strcpy (dir->dir, canon_name);
+  free ((char *) canon_name);
+  dirs = dir;
+  return 0;
+}
+
+static int
+gather_func (const char *name, const struct stat64 *st, int type,
+            struct FTW *ftwp)
+{
+  unsigned char e_ident [sizeof (Elf64_Ehdr) + sizeof (Elf64_Phdr)];
+
+#ifndef HAVE_FTW_ACTIONRETVAL
+  if (blacklist_dir)
+    {
+      if (strncmp (name, blacklist_dir, blacklist_dir_len) == 0)
+       return FTW_CONTINUE;
+      free (blacklist_dir);
+      blacklist_dir = NULL;
+    }
+#endif
+  if (type == FTW_F && S_ISREG (st->st_mode) && (st->st_mode & 0111))
+    {
+      int fd, i;
+      DSO *dso;
+      struct prelink_entry *ent;
+      size_t len = strlen (name);
+      const char *base = NULL;
+
+      for (i = 0; i < blacklist_next; ++i)
+       if (blacklist_ext[i].is_glob)
+         {
+           if (base == NULL)
+             {
+               base = strrchr (name, '/');
+               if (base == NULL)
+                 base = name;
+               else
+                 ++base;
+             }
+           if (fnmatch (blacklist_ext[i].ext, base, FNM_PERIOD) == 0)
+             return FTW_CONTINUE;
+         }
+       else if (blacklist_ext[i].len <= len
+                && memcmp (name + len - blacklist_ext[i].len,
+                           blacklist_ext[i].ext, blacklist_ext[i].len) == 0)
+         return FTW_CONTINUE;
+
+      ent = prelink_find_entry (name, st, 0);
+      if (ent != NULL && ent->type != ET_NONE)
+       {
+         if (verbose > 5)
+           {
+             if (ent->type == ET_CACHE_EXEC || ent->type == ET_CACHE_DYN)
+               printf ("Assuming prelinked %s\n", name);
+             if (ent->type == ET_UNPRELINKABLE)
+               printf ("Assuming non-prelinkable %s\n", name);
+           }
+         ent->u.explicit = 1;
+         return FTW_CONTINUE;
+       }
+
+      if (st->st_size < sizeof (e_ident))
+       return FTW_CONTINUE;
+
+      fd = open (name, O_RDONLY);
+      if (fd == -1)
+       return FTW_CONTINUE;
+
+      if (read (fd, e_ident, sizeof (e_ident)) != sizeof (e_ident))
+       {
+close_it:
+         close (fd);
+         return FTW_CONTINUE;
+       }
+
+      /* Quickly find ET_EXEC ELF binaries and most of PIE binaries.  */
+
+      if (memcmp (e_ident, ELFMAG, SELFMAG) != 0)
+       {
+make_unprelinkable:
+         if (! undo)
+           {
+             ent = prelink_find_entry (name, st, 1);
+             if (ent != NULL)
+               {
+                 assert (ent->type == ET_NONE);
+                 ent->type = ET_UNPRELINKABLE;
+               }
+           }
+         close (fd);
+         return FTW_CONTINUE;
+       }
+
+      switch (e_ident [EI_DATA])
+       {
+       case ELFDATA2LSB:
+         if (e_ident [EI_NIDENT + 1] != 0)
+           goto make_unprelinkable;
+         if (e_ident [EI_NIDENT] != ET_EXEC)
+           {
+             if (e_ident [EI_NIDENT] != ET_DYN)
+               goto make_unprelinkable;
+             else if (e_ident [EI_CLASS] == ELFCLASS32)
+               {
+                 if (e_ident [offsetof (Elf32_Ehdr, e_phoff)]
+                     == sizeof (Elf32_Ehdr)
+                     && memcmp (e_ident + offsetof (Elf32_Ehdr, e_phoff) + 1,
+                                "\0\0\0", 3) == 0
+                     && (e_ident [offsetof (Elf32_Ehdr, e_phnum)]
+                         || e_ident [offsetof (Elf32_Ehdr, e_phnum) + 1])
+                     && e_ident [sizeof (Elf32_Ehdr)
+                                 + offsetof (Elf32_Phdr, p_type)] == PT_PHDR
+                     && memcmp (e_ident + sizeof (Elf32_Ehdr)
+                                + offsetof (Elf32_Phdr, p_type) + 1,
+                                "\0\0\0", 3) == 0)
+                   {
+maybe_pie:
+                     dso = fdopen_dso (fd, name);
+                     if (dso == NULL)
+                       goto close_it;
+                     if (dynamic_info_is_set (dso, DT_DEBUG))
+                       {
+                         close_dso (dso);
+                         goto make_unprelinkable;
+                       }
+                     close_dso (dso);
+                   }
+                 goto close_it;
+               }
+             else if (e_ident [EI_CLASS] == ELFCLASS64)
+               {
+                 if (e_ident [offsetof (Elf64_Ehdr, e_phoff)]
+                     == sizeof (Elf64_Ehdr)
+                     && memcmp (e_ident + offsetof (Elf64_Ehdr, e_phoff) + 1,
+                                "\0\0\0\0\0\0\0", 7) == 0
+                     && (e_ident [offsetof (Elf64_Ehdr, e_phnum)]
+                         || e_ident [offsetof (Elf64_Ehdr, e_phnum) + 1])
+                     && e_ident [sizeof (Elf64_Ehdr)
+                                 + offsetof (Elf64_Phdr, p_type)] == PT_PHDR
+                     && memcmp (e_ident + sizeof (Elf64_Ehdr)
+                                + offsetof (Elf64_Phdr, p_type) + 1,
+                                "\0\0\0", 3) == 0)
+                   goto maybe_pie;
+                 goto close_it;
+               }
+             else
+               goto make_unprelinkable;
+           }
+         break;
+       case ELFDATA2MSB:
+         if (e_ident [EI_NIDENT] != 0)
+           goto make_unprelinkable;
+         if (e_ident [EI_NIDENT + 1] != ET_EXEC)
+           {
+             if (e_ident [EI_NIDENT + 1] != ET_DYN)
+               goto make_unprelinkable;
+             else if (e_ident [EI_CLASS] == ELFCLASS32)
+               {
+                 if (e_ident [offsetof (Elf32_Ehdr, e_phoff) + 3]
+                     == sizeof (Elf32_Ehdr)
+                     && memcmp (e_ident + offsetof (Elf32_Ehdr, e_phoff),
+                                "\0\0\0", 3) == 0
+                     && (e_ident [offsetof (Elf32_Ehdr, e_phnum)]
+                         || e_ident [offsetof (Elf32_Ehdr, e_phnum) + 1])
+                     && e_ident [sizeof (Elf32_Ehdr)
+                                 + offsetof (Elf32_Phdr, p_type) + 3]
+                        == PT_PHDR
+                     && memcmp (e_ident + sizeof (Elf32_Ehdr)
+                                + offsetof (Elf32_Phdr, p_type),
+                                "\0\0\0", 3) == 0)
+                   goto maybe_pie;
+                 goto close_it;
+               }
+             else if (e_ident [EI_CLASS] == ELFCLASS64)
+               {
+                 if (e_ident [offsetof (Elf64_Ehdr, e_phoff) + 7]
+                     == sizeof (Elf64_Ehdr)
+                     && memcmp (e_ident + offsetof (Elf64_Ehdr, e_phoff),
+                                "\0\0\0\0\0\0\0", 7) == 0
+                     && (e_ident [offsetof (Elf64_Ehdr, e_phnum)]
+                         || e_ident [offsetof (Elf64_Ehdr, e_phnum) + 1])
+                     && e_ident [sizeof (Elf64_Ehdr)
+                                 + offsetof (Elf64_Phdr, p_type) + 3]
+                        == PT_PHDR
+                     && memcmp (e_ident + sizeof (Elf64_Ehdr)
+                                + offsetof (Elf64_Phdr, p_type),
+                                "\0\0\0", 3) == 0)
+                   goto maybe_pie;
+                 goto close_it;
+               }
+             else
+               goto make_unprelinkable;
+           }
+         break;
+       default:
+         goto make_unprelinkable;
+       }
+
+      dso = fdopen_dso (fd, name);
+      if (dso == NULL)
+       return FTW_CONTINUE;
+
+      gather_exec (dso, st);
+    }
+  else if (type == FTW_D)
+    switch (add_dir_to_dirlist (name, st->st_dev, FTW_CHDIR))
+      {
+      case 0: return FTW_CONTINUE;
+      default: return FTW_STOP;
+      case 2:
+#ifdef HAVE_FTW_ACTIONRETVAL
+       return FTW_SKIP_SUBTREE;
+#else
+       {
+         blacklist_dir_len = strlen (name) + 1;
+         if (blacklist_dir_len > 1 && name[blacklist_dir_len - 2] == '/')
+           blacklist_dir_len--;
+         blacklist_dir = malloc (blacklist_dir_len + 1);
+         if (blacklist_dir == NULL)
+           {
+             error (0, ENOMEM, "Cannot store blacklisted dir name");
+             return FTW_STOP;
+           }
+         memcpy (blacklist_dir, name, blacklist_dir_len - 1);
+         blacklist_dir[blacklist_dir_len - 1] = '/';
+         blacklist_dir[blacklist_dir_len] = '\0';
+         return FTW_CONTINUE;
+       }
+#endif
+      }
+
+  return FTW_CONTINUE;
+}
+
+static int
+gather_binlib (const char *name, const struct stat64 *st)
+{
+  unsigned char e_ident [EI_NIDENT + 2];
+  int fd, type;
+  DSO *dso;
+  struct prelink_entry *ent;
+
+  if (! S_ISREG (st->st_mode))
+    {
+      error (0, 0, "%s is not a regular file", name);
+      return 1;
+    }
+
+  ent = prelink_find_entry (name, st, 0);
+  if (ent != NULL && ent->type == ET_UNPRELINKABLE)
+    {
+      free (ent->depends);
+      ent->depends = NULL;
+      ent->ndepends = 0;
+      ent->type = ET_NONE;
+    }
+  if (ent != NULL && ent->type != ET_NONE)
+    {
+      ent->u.explicit = 1;
+      return 0;
+    }
+
+  fd = open (name, O_RDONLY);
+  if (fd == -1)
+    {
+      error (0, errno, "Could not open %s", name);
+      return 1;
+    }
+
+  if (read (fd, e_ident, sizeof (e_ident)) != sizeof (e_ident))
+    {
+      error (0, errno, "Could not read ELF header from %s", name);
+      close (fd);
+      return 1;
+    }
+
+  /* Quickly find ET_EXEC/ET_DYN ELF binaries/libraries only.  */
+
+  if (memcmp (e_ident, ELFMAG, SELFMAG) != 0)
+    {
+      error (0, 0, "%s is not an ELF object", name);
+      close (fd);
+      return 1;
+    }
+
+  switch (e_ident [EI_DATA])
+    {
+    case ELFDATA2LSB:
+      if (e_ident [EI_NIDENT + 1] != 0)
+       goto unsupported_type;
+      type = e_ident [EI_NIDENT];
+      break;
+    case ELFDATA2MSB:
+      if (e_ident [EI_NIDENT] != 0)
+       goto unsupported_type;
+      type = e_ident [EI_NIDENT + 1];
+      break;
+    default:
+      goto unsupported_type;
+    }
+
+  if (type != ET_EXEC && type != ET_DYN)
+    {
+unsupported_type:
+      error (0, 0, "%s is neither ELF executable nor ELF shared library", name);
+      close (fd);
+      return 1;
+    }
+
+  dso = fdopen_dso (fd, name);
+  if (dso == NULL)
+    return 0;
+
+  if (type == ET_EXEC)
+    {
+      int i;
+
+      for (i = 0; i < dso->ehdr.e_phnum; ++i)
+       if (dso->phdr[i].p_type == PT_INTERP)
+         break;
+
+      /* If there are no PT_INTERP segments, it is statically linked.  */
+      if (i == dso->ehdr.e_phnum)
+       {
+         error (0, 0, "%s is statically linked", name);
+         close_dso (dso);
+         return 1;
+       }
+
+      return gather_exec (dso, st);
+    }
+
+  ent = prelink_find_entry (name, st, 1);
+  if (ent == NULL)
+    {
+      close_dso (dso);
+      return 1;
+    }
+
+  assert (ent->type == ET_NONE);
+  ent->type = ET_BAD;
+  ent->u.explicit = 1;
+  return gather_dso (dso, ent);
+}
+
+int
+gather_object (const char *name, int deref, int onefs)
+{
+  struct stat64 st;
+
+  if (stat64 (name, &st) < 0)
+    {
+      if (implicit)
+       return 0;
+      error (0, errno, "Could not stat %s", name);
+      return 1;
+    }
+
+  if (S_ISDIR (st.st_mode))
+    {
+      int flags = 0, ret;
+      if (! deref) flags |= FTW_PHYS;
+      if (onefs) flags |= FTW_MOUNT;
+
+      if (implicit && ! deref)
+       {
+         ret = add_dir_to_dirlist (name, st.st_dev, flags);
+         if (ret)
+           return ret == 2 ? 0 : 1;
+       }
+      if (!all && implicit && ! deref)
+       return 0;
+      ++implicit;
+      ret = nftw64 (name, gather_func, 20, flags | FTW_ACTIONRETVAL);
+      --implicit;
+      if (ret < 0)
+       error (0, errno, "Failed searching %s", name);
+#ifndef HAVE_FTW_ACTIONRETVAL
+      free (blacklist_dir);
+      blacklist_dir = NULL;
+#endif
+      return ret;
+    }
+  else
+    return gather_binlib (name, &st);
+}
+
+static struct config_line
+{
+  struct config_line *next;
+  char line[1];
+} *config_lines, **config_end = &config_lines;
+
+int
+read_config (const char *config)
+{
+  FILE *file = fopen (config, "r");
+  char *line = NULL;
+  size_t len, llen;
+  int ret = 0;
+  struct config_line *c;
+
+  if (file == NULL)
+    {
+      error (0, errno, "Can't open configuration file %s", config);
+      return 1;
+    }
+
+  do
+    {
+      ssize_t i = getline (&line, &len, file);
+      char *p;
+
+      if (i < 0)
+       break;
+
+      if (line[i - 1] == '\n')
+       line[i - 1] = '\0';
+
+      p = strchr (line, '#');
+      if (p != NULL)
+       *p = '\0';
+
+      p = line + strspn (line, " \t");
+      if (p[0] == '-' && p[1] == 'c' && (p[2] == ' ' || p[2] == '\t'))
+       {
+         glob_t g;
+         p += 2 + strspn (p + 2, " \t");
+
+         if (!glob (p, GLOB_BRACE, NULL, &g))
+           {
+             size_t n;
+
+             for (n = 0; n < g.gl_pathc; ++n)
+               if (read_config (g.gl_pathv[n]))
+                 {
+                   ret = 1;
+                   break;
+                 }
+
+             globfree (&g);
+             if (ret)
+               break;
+           }
+         continue;
+       }
+
+      llen = strlen (p);
+      c = malloc (sizeof (*c) + llen);
+      if (c == NULL)
+       {
+         error (0, ENOMEM, "Could not cache config file");
+         ret = 1;
+         break;
+       }
+
+      c->next = NULL;
+      memcpy (c->line, p, llen + 1);
+      *config_end = c;
+      config_end = &c->next;
+    }
+  while (!feof (file));
+
+  free (line);
+  fclose (file);
+  return ret;
+}
+
+int
+gather_config (void)
+{
+  struct config_line *c;
+  int ret = 0;
+
+  implicit = 1;
+  for (c = config_lines; c; c = c->next)
+    {
+      int deref = 0;
+      int onefs = 0;
+      char *p = c->line;
+
+      while (*p == '-')
+       {
+         switch (p[1])
+           {
+           case 'h': deref = 1; break;
+           case 'l': onefs = 1; break;
+           case 'b': p = ""; continue;
+           default:
+             error (0, 0, "Unknown directory option `%s'\n", p);
+             break;
+           }
+         p = p + 2 + strspn (p + 2, " \t");
+       }
+
+      if (*p == '\0')
+       continue;
+
+      if (strpbrk (p, "*?[{") == NULL)
+       {
+         ret = gather_object (p, deref, onefs);
+         if (ret)
+           {
+             ret = 1;
+             break;
+           }
+       }
+      else
+       {
+         glob_t g;
+
+         if (!glob (p, GLOB_BRACE, NULL, &g))
+           {
+             size_t n;
+
+             for (n = 0; n < g.gl_pathc; ++n)
+               {
+                 ret = gather_object (g.gl_pathv[n], deref, onefs);
+                 if (ret)
+                   {
+                     ret = 1;
+                     break;
+                   }
+               }
+
+             globfree (&g);
+             if (ret)
+               break;
+           }
+       }
+    }
+
+  implicit = 0;
+  return ret;
+}
+
+static int
+gather_check_lib (void **p, void *info)
+{
+  struct prelink_entry *e = * (struct prelink_entry **) p;
+
+  if (e->type != ET_DYN)
+    return 1;
+
+  if (! e->u.explicit)
+    {
+      struct prelink_dir *dir;
+      const char *name;
+      size_t len;
+
+      name = strrchr (e->canon_filename, '/');
+      if (!name)
+       name = e->canon_filename;
+      len = name - e->canon_filename;
+
+      for (dir = blacklist; dir; dir = dir->next)
+       if (((dir->flags != FTW_CHDIR && len >= dir->len)
+            || (dir->flags == FTW_CHDIR && len == dir->len))
+           && strncmp (dir->dir, e->canon_filename, dir->len) == 0)
+         {
+           if (dir->flags == FTW_CHDIR)
+             break;
+           if ((dir->flags & FTW_MOUNT) && dir->dev != e->dev)
+             continue;
+           break;
+         }
+
+      if (dir != NULL)
+       {
+         error (0, 0, "%s is present in a blacklisted directory %s",
+                e->canon_filename, dir->dir);
+         e->type = ET_BAD;
+         return 1;
+       }
+
+      for (dir = dirs; dir; dir = dir->next)
+       if (((dir->flags != FTW_CHDIR && len >= dir->len)
+            || (dir->flags == FTW_CHDIR && len == dir->len))
+           && strncmp (dir->dir, e->canon_filename, dir->len) == 0)
+         {
+           if (dir->flags == FTW_CHDIR)
+             break;
+           if ((dir->flags & FTW_MOUNT) && dir->dev != e->dev)
+             continue;
+           break;
+         }
+
+      if (dir == NULL)
+       {
+         error (0, 0, "%s is not present in any config file directories, nor was specified on command line",
+                e->canon_filename);
+         e->type = ET_BAD;
+         return 1;
+       }
+    }
+
+  return 1;
+}
+
+int
+gather_check_libs (void)
+{
+  struct prelink_dir *dir;
+  void *f;
+
+  htab_traverse (prelink_filename_htab, gather_check_lib, NULL);
+
+  dir = dirs;
+  while (dir != NULL)
+    {
+      f = dir;
+      dir = dir->next;
+      free (f);
+    }
+
+  dir = blacklist;
+  while (dir != NULL)
+    {
+      f = dir;
+      dir = dir->next;
+      free (f);
+    }
+
+  dirs = NULL;
+  blacklist = NULL;
+  return 0;
+}
+
+int
+add_to_blacklist (const char *name, int deref, int onefs)
+{
+  const char *canon_name;
+  struct prelink_dir *path;
+  size_t len;
+  struct stat64 st;
+
+  if (stat64 (name, &st) < 0)
+    {
+      if (implicit)
+       return 0;
+      error (0, errno, "Could not stat %s", name);
+      return 1;
+    }
+
+  if (!S_ISDIR (st.st_mode))
+    {
+      struct prelink_entry *ent;
+
+      ent = prelink_find_entry (name, &st, 1);
+      if (ent == NULL)
+       return 1;
+
+      ent->type = ET_BAD;
+      ent->u.explicit = 1;
+      return 0;
+    }
+
+  canon_name = prelink_canonicalize (name, NULL);
+  if (canon_name == NULL)
+    {
+      if (implicit)
+       return 0;
+      error (0, errno, "Could not canonicalize %s", name);
+      return 1;
+    }
+
+  len = strlen (canon_name);
+  path = malloc (sizeof (struct prelink_dir) + len + 1);
+  if (path == NULL)
+    {
+      error (0, ENOMEM, "Could not record path %s", name);
+      free ((char *) canon_name);
+      return 1;
+    }
+
+  path->next = blacklist;
+  path->flags = 0;
+  if (! deref) path->flags |= FTW_PHYS;
+  if (onefs) path->flags |= FTW_MOUNT;
+  path->dev = 0;
+  path->len = len;
+  strcpy (path->dir, canon_name);
+  free ((char *) canon_name);
+  blacklist = path;
+  return 0;
+}
+
+void
+add_blacklist_ext (const char *ext)
+{
+  blacklist_ext = realloc (blacklist_ext,
+                          (blacklist_next + 1) * sizeof (*blacklist_ext));
+  if (blacklist_ext == NULL)
+    error (EXIT_FAILURE, errno, "can't create blacklist extension list");
+  if (*ext == '*' && strpbrk (ext + 1, "*?[{") == NULL)
+    {
+      blacklist_ext[blacklist_next].is_glob = 0;
+      ext++;
+    }
+  else
+    blacklist_ext[blacklist_next].is_glob = 1;
+  blacklist_ext[blacklist_next].ext = strdup (ext);
+  if (blacklist_ext[blacklist_next].ext == NULL)
+    error (EXIT_FAILURE, errno, "can't create blacklist extension list");
+  blacklist_ext[blacklist_next].len = strlen (ext);
+  blacklist_next++;
+}
+
+int
+blacklist_from_config (void)
+{
+  struct config_line *c;
+  int ret = 0;
+
+  implicit = 1;
+  for (c = config_lines; c; c = c->next)
+    {
+      int deref = 0;
+      int onefs = 0;
+      int blacklist = 0;
+      char *p = c->line;
+
+      while (*p == '-')
+       {
+         switch (p[1])
+           {
+           case 'h': deref = 1; break;
+           case 'l': onefs = 1; break;
+           case 'b': blacklist = 1; break;
+           }
+         p = p + 2 + strspn (p + 2, " \t");
+       }
+
+      if (*p == '\0' || !blacklist)
+       continue;
+
+      if (strchr (p, '/') == NULL)
+       {
+         add_blacklist_ext (p);
+         continue;
+       }
+
+      if (strpbrk (p, "*?[{") == NULL)
+       {
+         ret = add_to_blacklist (p, deref, onefs);
+         if (ret)
+           {
+             ret = 1;
+             break;
+           }
+       }
+      else
+       {
+         glob_t g;
+
+         if (!glob (p, GLOB_BRACE | GLOB_PERIOD, NULL, &g))
+           {
+             size_t n;
+
+             for (n = 0; n < g.gl_pathc; ++n)
+               {
+                 ret = add_to_blacklist (g.gl_pathv[n], deref, onefs);
+                 if (ret)
+                   {
+                     ret = 1;
+                     break;
+                   }
+               }
+
+             globfree (&g);
+             if (ret)
+               break;
+           }
+       }
+    }
+
+  implicit = 0;
+  return ret;
+}
diff --git a/src/get.c b/src/get.c
new file mode 100644 (file)
index 0000000..fe32deb
--- /dev/null
+++ b/src/get.c
@@ -0,0 +1,717 @@
+/* Copyright (C) 2001, 2002, 2003, 2004, 2005, 2007, 2009 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/wait.h>
+#include "prelink.h"
+
+int
+is_ldso_soname (const char *soname)
+{
+  if (! strcmp (soname, "ld-linux.so.2")
+      || ! strcmp (soname, "ld.so.1")
+      || ! strcmp (soname, "ld-linux-ia64.so.2")
+      || ! strcmp (soname, "ld-linux-x86-64.so.2")
+      || ! strcmp (soname, "ld64.so.1"))
+    return 1;
+  return 0;
+}
+
+static void
+conflict_hash_init (struct prelink_conflicts *conflicts)
+{
+  struct prelink_conflict **hash
+    = calloc (sizeof (struct prelink_conflict *), 251);
+  struct prelink_conflict *conflict, *next;
+  size_t idx;
+
+  if (hash == NULL)
+    return;
+
+  for (conflict = conflicts->first; conflict; conflict = next)
+    {
+      next = conflict->next;
+      idx = conflict->symoff % 251;
+      conflict->next = hash[idx];
+      hash[idx] = conflict;
+    }
+  conflicts->hash = hash;
+}
+
+static int
+prelink_record_relocations (struct prelink_info *info, FILE *f,
+                           const char *ent_filename)
+{
+  char buffer[8192];
+  DSO *dso = info->dso;
+  struct prelink_entry *ent, *ent2;
+  struct prelink_tls *tls;
+  struct deps
+    {
+      struct prelink_entry *ent;
+      char *soname;
+      GElf_Addr start;
+      GElf_Addr l_addr;
+      GElf_Addr tls_modid;
+      GElf_Addr tls_offset;
+    } deps[info->ent->ndepends + 1];
+  char *r;
+  int i, ndeps = 0, undef = 0, seen = 0, tdeps = 0;
+  int mask_32bit = (info->dso->ehdr.e_ident[EI_CLASS] == ELFCLASS32);
+
+  /* Record the dependencies.  */
+  while ((r = fgets (buffer, 8192, f)) != NULL)
+    {
+      char *soname, *filename, *p, *q;
+      GElf_Addr start = 0, l_addr = 0, tls_modid = 0, tls_offset = 0;
+      unsigned long long l;
+
+      if (buffer[0] != '\t' || (filename = strstr (buffer, " => ")) == NULL)
+       break;
+      soname = buffer + 1;
+      p = strstr (filename + sizeof (" => "), " (0x");
+      if (p != NULL)
+       {
+         l = strtoull (p + sizeof (" (0x") - 1, &q, 16);
+         start = (GElf_Addr) l;
+         if (start != l || strncmp (q, ", 0x", sizeof (", 0x") - 1))
+           p = NULL;
+         else
+           {
+             l = strtoull (q + sizeof (", 0x") - 1, &q, 16);
+             l_addr = (GElf_Addr) l;
+             if (l_addr != l || q[-1] == 'x')
+               p = NULL;
+             else if (strncmp (q, ") TLS(0x", sizeof (") TLS(0x") - 1) == 0)
+               {
+                 l = strtoull (q + sizeof (") TLS(0x") - 1, &q, 16);
+                 tls_modid = (GElf_Addr) l;
+                 if (tls_modid != l || q[-1] == 'x'
+                     || strncmp (q, ", 0x", sizeof (", 0x") - 1))
+                   p = NULL;
+                 else
+                   {
+                     l = strtoull (q + sizeof (", 0x") - 1, &q, 16);
+                     tls_offset = (GElf_Addr) l;
+                     if (tls_offset != l || q[-1] == 'x')
+                       p = NULL;
+                   }
+               }
+             if (p && strcmp (q, ")\n"))
+               p = NULL;
+           }
+       }
+      if (p == NULL)
+       {
+         p = strchr (buffer, '\n');
+         if (p != NULL)
+           *p = '\0';
+         error (0, 0, "Could not parse line `%s'", buffer);
+         goto error_out;
+       }
+      *filename = '\0';
+      filename += sizeof (" => ") - 1;
+      *p = '\0';
+
+      if (ndeps > info->ent->ndepends)
+       {
+         error (0, 0, "%s: Recorded %d dependencies, now seeing %d\n",
+                info->ent->filename, info->ent->ndepends, ndeps - 1);
+         goto error_out;
+       }
+
+      tdeps = ndeps - seen + 1;
+      if (! seen
+         && (strcmp (info->ent->filename, filename) == 0
+             || (info->ent->filename != ent_filename
+                 && strcmp (ent_filename, filename) == 0)
+             || strcmp (info->ent->canon_filename, filename) == 0))
+       {
+         seen = 1;
+         tdeps = 0;
+       }
+      else if (ent2 = info->ent->depends [tdeps - 1],
+              strcmp (ent2->filename, filename) != 0
+              && strcmp (ent2->canon_filename, filename) != 0)
+       {
+         struct prelink_link *hardlink;
+
+         for (hardlink = ent2->hardlink; hardlink; hardlink = hardlink->next)
+           if (strcmp (hardlink->canon_filename, filename) == 0)
+             break;
+
+         if (hardlink == NULL)
+           {
+             struct stat64 st;
+
+             if (stat64 (filename, &st) < 0)
+               {
+                 error (0, errno, "%s: Could not stat %s",
+                        info->ent->filename, filename);
+                 goto error_out;
+               }
+
+             if (st.st_dev != ent2->dev || st.st_ino != ent2->ino)
+               {
+                 error (0, 0, "%s: %s => %s does not match recorded dependency",
+                        info->ent->filename, soname, filename);
+                 goto error_out;
+               }
+           }
+       }
+
+      if (! tdeps)
+       deps[0].ent = info->ent;
+      else
+       deps[tdeps].ent = info->ent->depends[tdeps - 1];
+      deps[tdeps].soname = strdup (soname);
+      if (deps[tdeps].soname == NULL)
+       {
+         error (0, ENOMEM, "Could not record `%s' SONAME", soname);
+         goto error_out;
+       }
+      deps[tdeps].start = start;
+      deps[tdeps].l_addr = l_addr;
+      deps[tdeps].tls_modid = tls_modid;
+      deps[tdeps].tls_offset = tls_offset;
+      ++ndeps;
+    }
+
+  if (ndeps != info->ent->ndepends + 1)
+    {
+      error (0, 0, "%s: Recorded %d dependencies, now seeing %d\n",
+            info->ent->filename, info->ent->ndepends, ndeps - 1);
+      goto error_out;
+    }
+
+  if (r == NULL && !ndeps)
+    {
+      error (0, 0, "%s: %s did not print any lookup lines", info->ent->filename,
+            dynamic_linker ?: dso->arch->dynamic_linker);
+      goto error_out;
+    }
+
+  info->tls = malloc (ndeps * sizeof (struct prelink_tls));
+  if (info->tls == NULL)
+    {
+      error (0, ENOMEM, "%s: Could not record dependency TLS information",
+            dso->filename);
+      goto error_out;
+    }
+
+  for (i = 0; i < ndeps; i++)
+    {
+      info->tls[i].modid = deps[i].tls_modid;
+      info->tls[i].offset = deps[i].tls_offset;
+    }
+
+  if (dso->ehdr.e_type == ET_EXEC || dso->arch->create_opd)
+    {
+      info->conflicts = (struct prelink_conflicts *)
+                       calloc (sizeof (struct prelink_conflicts), ndeps);
+      if (info->conflicts == NULL)
+       {
+         error (0, ENOMEM, "%s: Can't build list of conflicts", info->ent->filename);
+         goto error_out;
+       }
+      for (i = 0; i < ndeps; i++)
+       info->conflicts[i].hash = &info->conflicts[i].first;
+    }
+  do
+    {
+      unsigned long long symstart, symoff, valstart[3], value[3];
+      int reloc_class, len, type = 1, ifunc = 0;
+      char *symname;
+
+      r = strchr (buffer, '\n');
+      if (r)
+       *r = '\0';
+      if (strncmp (buffer, "lookup ", sizeof ("lookup ") - 1) == 0)
+       {
+         struct prelink_symbol *s;
+
+         if (sscanf (buffer, "lookup 0x%llx 0x%llx -> 0x%llx 0x%llx %n",
+                     &symstart, &symoff, &valstart[0], &value[0], &len) != 4)
+           {
+             error (0, 0, "%s: Could not parse `%s'", info->ent->filename, buffer);
+             goto error_out;
+           }
+
+         if (buffer[len] == '/')
+           {
+             ++len;
+             type = 0;
+           }
+
+         reloc_class = strtoul (buffer + len, &symname, 16);
+         if (buffer + len == symname || (reloc_class == 0 && type)
+             || (*symname != ' ' && *symname != '\t'))
+           {
+             error (0, 0, "%s: Could not parse `%s'", info->ent->filename, buffer);
+             goto error_out;
+           }
+
+         if (type)
+           reloc_class = dso->arch->reloc_class (reloc_class);
+         else
+           {
+             if (reloc_class & 8)
+               {
+                 reloc_class = ((reloc_class & ~8)
+                                | dso->arch->rtype_class_valid);
+                 ifunc = 1;
+               }
+             else if ((reloc_class | RTYPE_CLASS_VALID) == RTYPE_CLASS_TLS)
+               reloc_class |= RTYPE_CLASS_VALID;
+             else
+               reloc_class |= dso->arch->rtype_class_valid;
+           }
+
+         while (*symname == ' ' || *symname == '\t') ++symname;
+
+         ent = NULL;
+         tls = NULL;
+         if (symstart == deps[0].start
+             || ((reloc_class == RTYPE_CLASS_TLS || ifunc)
+                 && info->conflicts))
+           {
+             for (i = 0; i < ndeps; i++)
+               if (deps[i].start == valstart[0])
+                 {
+                   if (reloc_class == RTYPE_CLASS_TLS)
+                     tls = info->tls + i;
+                   else
+                     {
+                       ent = deps[i].ent;
+                       /* If the library the symbol is bound to is already
+                          prelinked, adjust the value so that it is relative
+                          to library base.  */
+                       if (mask_32bit)
+                         value[0] -= (Elf32_Addr) (deps[i].start - deps[i].l_addr);
+                       else
+                         value[0] -= deps[i].start - deps[i].l_addr;
+                     }
+                   break;
+                 }
+
+             if (ent == NULL && tls == NULL && valstart[0])
+               {
+                 error (0, 0, "Could not find base 0x%08llx in the list of bases `%s'",
+                        valstart[0], buffer);
+                 goto error_out;
+               }
+           }
+
+         if (symstart == deps[0].start && (!ifunc || info->conflicts == NULL))
+           {
+             /* Only interested in relocations from the current object.  */
+             if (symoff < info->symtab_start || symoff >= info->symtab_end)
+               {
+                 error (0, 0, "%s: Symbol `%s' offset 0x%08llx does not point into .dynsym section",
+                        info->ent->filename, symname, symoff);
+                 goto error_out;
+               }
+
+             if (ent == info->ent
+                 && reloc_class != RTYPE_CLASS_TLS)
+               value[0] = adjust_old_to_new (info->dso, value[0]);
+
+             s = &info->symbols[(symoff - info->symtab_start)
+                                 / info->symtab_entsize];
+             if (s->reloc_class)
+               {
+                 while (s->reloc_class != reloc_class && s->next != NULL)
+                   s = s->next;
+                 if (s->reloc_class == reloc_class)
+                   {
+                     if ((reloc_class != RTYPE_CLASS_TLS && s->u.ent != ent)
+                         || (reloc_class == RTYPE_CLASS_TLS
+                             && s->u.tls != tls)
+                         || s->value != value[0])
+                       {
+                         error (0, 0, "%s: Symbol `%s' with the same reloc type resolves to different values each time",
+                                info->ent->filename, symname);
+                         goto error_out;
+                       }
+                     s = NULL;
+                   }
+                 else
+                   {
+                     s->next = (struct prelink_symbol *)
+                               malloc (sizeof (struct prelink_symbol));
+                     if (s->next == NULL)
+                       {
+                         error (0, ENOMEM, "Cannot build symbol lookup map");
+                         goto error_out;
+                       }
+                     s = s->next;
+                   }
+               }
+             if (s)
+               {
+                 if (reloc_class == RTYPE_CLASS_TLS)
+                   s->u.tls = tls;
+                 else
+                   s->u.ent = ent;
+                 s->value = value[0];
+                 s->reloc_class = reloc_class;
+                 s->next = NULL;
+               }
+           }
+         else if ((reloc_class == RTYPE_CLASS_TLS || ifunc)
+                  && info->conflicts)
+           {
+             struct prelink_conflict *conflict;
+             int symowner;
+             size_t idx;
+
+             for (symowner = 0; symowner < ndeps; symowner++)
+               if (deps[symowner].start == symstart)
+                 break;
+             if (symowner == ndeps)
+               {
+                 error (0, 0, "Could not find base 0x%08llx in the list of bases `%s'",
+                        symstart, buffer);
+                 goto error_out;
+               }
+
+              idx = 0;
+             if (info->conflicts[symowner].hash != &info->conflicts[symowner].first)
+               idx = symoff % 251;
+             for (conflict = info->conflicts[symowner].hash[idx]; conflict;
+                  conflict = conflict->next)
+               if (conflict->symoff == symoff
+                   && conflict->reloc_class == reloc_class)
+                 {
+                   if ((reloc_class != RTYPE_CLASS_TLS
+                        && (conflict->lookup.ent != ent
+                            || conflict->conflict.ent != ent))
+                       || (reloc_class == RTYPE_CLASS_TLS
+                           && (conflict->lookup.tls != tls
+                               || conflict->conflict.tls != tls))
+                       || conflict->lookupval != value[0]
+                       || conflict->conflictval != value[0])
+                     {
+                       error (0, 0, "%s: Symbol `%s' with the same reloc type resolves to different values each time",
+                              info->ent->filename, symname);
+                       goto error_out;
+                     }
+                   break;
+                 }
+             if (conflict == NULL)
+               {
+                 conflict = malloc (sizeof (struct prelink_conflict));
+                 if (conflict == NULL)
+                   {
+                     error (0, ENOMEM, "Cannot build list of conflicts");
+                     goto error_out;
+                   }
+
+                 conflict->next = info->conflicts[symowner].hash[idx];
+                 conflict->next2 = NULL;
+                 info->conflicts[symowner].hash[idx] = conflict;
+                 if (reloc_class != RTYPE_CLASS_TLS)
+                   {
+                     conflict->lookup.ent = ent;
+                     conflict->conflict.ent = ent;
+                   }
+                 else
+                   {
+                     conflict->lookup.tls = tls;
+                     conflict->conflict.tls = tls;
+                   }
+                 conflict->lookupval = value[0];
+                 conflict->conflictval = value[0];
+                 conflict->symoff = symoff;
+                 conflict->reloc_class = reloc_class;
+                 conflict->used = 0;
+                 conflict->ifunc = ifunc;
+                 if (++info->conflicts[symowner].count == 16)
+                   conflict_hash_init (&info->conflicts[symowner]);
+               }
+           }
+       }
+      else if (strncmp (buffer, "conflict ", sizeof ("conflict ") - 1) == 0)
+       {
+         if (sscanf (buffer, "conflict 0x%llx 0x%llx -> 0x%llx 0x%llx x 0x%llx 0x%llx %n",
+                     &symstart, &symoff, &valstart[0], &value[0],
+                     &valstart[1], &value[1], &len) != 6)
+           {
+             error (0, 0, "%s: Could not parse `%s'", info->ent->filename, buffer);
+             goto error_out;
+           }
+
+         if (buffer[len] == '/')
+           {
+             ++len;
+             type = 0;
+           }
+
+         reloc_class = strtoul (buffer + len, &symname, 16);
+         if (buffer + len == symname || (reloc_class == 0 && type)
+             || (*symname != ' ' && *symname != '\t'))
+           {
+             error (0, 0, "%s: Could not parse `%s'", info->ent->filename, buffer);
+             goto error_out;
+           }
+
+         if (type)
+           reloc_class = dso->arch->reloc_class (reloc_class);
+         else
+           {
+             if (reloc_class & 8)
+               {
+                 reloc_class = ((reloc_class & ~8)
+                                | dso->arch->rtype_class_valid);
+                 ifunc = 1;
+               }
+             else if ((reloc_class | RTYPE_CLASS_VALID) == RTYPE_CLASS_TLS)
+               reloc_class |= RTYPE_CLASS_VALID;
+             else
+               reloc_class |= dso->arch->rtype_class_valid;
+           }
+
+         while (*symname == ' ' || *symname == '\t') ++symname;
+
+         if (symstart == deps[0].start)
+           {
+             error (0, 0, "Conflict in _dl_loaded `%s'", buffer);
+             goto error_out;
+           }
+
+         if (info->conflicts)
+           {
+             struct prelink_entry *ents[2];
+             struct prelink_tls *tlss[2];
+             struct prelink_conflict *conflict;
+             int symowner, j;
+             size_t idx;
+
+             for (symowner = 1; symowner < ndeps; symowner++)
+               if (deps[symowner].start == symstart)
+                 break;
+             if (symowner == ndeps)
+               {
+                 error (0, 0, "Could not find base 0x%08llx in the list of bases `%s'",
+                        symstart, buffer);
+                 goto error_out;
+               }
+
+             for (j = 0; j < 2; j++)
+               {
+                 ents[j] = NULL;
+                 tlss[j] = NULL;
+                 for (i = 0; i < ndeps; i++)
+                   if (deps[i].start == valstart[j])
+                     {
+                       if (reloc_class == RTYPE_CLASS_TLS)
+                         tlss[j] = info->tls + i;
+                       else
+                         {
+                           ents[j] = deps[i].ent;
+                           /* If the library the symbol is bound to is already
+                              prelinked, adjust the value so that it is relative
+                              to library base.  */
+                           if (mask_32bit)
+                             value[j] -= (Elf32_Addr) (deps[i].start - deps[i].l_addr);
+                           else
+                             value[j] -= deps[i].start - deps[i].l_addr;
+                         }
+                       break;
+                     }
+                 if (ents[j] == NULL && tlss[j] == NULL && valstart[j])
+                   {
+                     error (0, 0, "Could not find base 0x%08llx in the list of bases `%s'",
+                            valstart[j], buffer);
+                     goto error_out;
+                   }
+               }
+
+             idx = 0;
+             if (info->conflicts[symowner].hash
+                 != &info->conflicts[symowner].first)
+               idx = symoff % 251;
+             for (conflict = info->conflicts[symowner].hash[idx]; conflict;
+                  conflict = conflict->next)
+               if (conflict->symoff == symoff
+                   && conflict->reloc_class == reloc_class)
+                 {
+                   if ((reloc_class != RTYPE_CLASS_TLS
+                        && (conflict->lookup.ent != ents[0]
+                            || conflict->conflict.ent != ents[1]))
+                       || (reloc_class == RTYPE_CLASS_TLS
+                           && (conflict->lookup.tls != tlss[0]
+                               || conflict->conflict.tls != tlss[1]))
+                       || conflict->lookupval != value[0]
+                       || conflict->conflictval != value[1])
+                     {
+                       error (0, 0, "%s: Symbol `%s' with the same reloc type resolves to different values each time",
+                              info->ent->filename, symname);
+                       goto error_out;
+                     }
+                   break;
+                 }
+             if (conflict == NULL)
+               {
+                 conflict = malloc (sizeof (struct prelink_conflict));
+                 if (conflict == NULL)
+                   {
+                     error (0, ENOMEM, "Cannot build list of conflicts");
+                     goto error_out;
+                   }
+
+                 conflict->next = info->conflicts[symowner].hash[idx];
+                 conflict->next2 = NULL;
+                 info->conflicts[symowner].hash[idx] = conflict;
+                 if (reloc_class != RTYPE_CLASS_TLS)
+                   {
+                     conflict->lookup.ent = ents[0];
+                     conflict->conflict.ent = ents[1];
+                   }
+                 else
+                   {
+                     conflict->lookup.tls = tlss[0];
+                     conflict->conflict.tls = tlss[1];
+                   }
+                 conflict->lookupval = value[0];
+                 conflict->conflictval = value[1];
+                 conflict->symoff = symoff;
+                 conflict->reloc_class = reloc_class;
+                 conflict->used = 0;
+                 conflict->ifunc = ifunc;
+                 if (++info->conflicts[symowner].count == 16)
+                   conflict_hash_init (&info->conflicts[symowner]);
+               }
+           }
+       }
+      else if (strncmp (buffer, "undefined symbol: ",
+                       sizeof ("undefined symbol: ") - 1) == 0 && ! undef)
+       {
+         undef = 1;
+         if (verbose)
+           error (0, 0, "Warning: %s has undefined non-weak symbols",
+                  info->ent->filename);
+       }
+    } while (fgets (buffer, 8192, f) != NULL);
+
+  info->sonames = malloc (ndeps * sizeof (const char *));
+  if (info->sonames == NULL)
+    {
+      error (0, ENOMEM, "%s: Could not record dependency SONAMEs", dso->filename);
+      goto error_out;
+    }
+
+  for (i = 0; i < ndeps; i++)
+    info->sonames[i] = deps[i].soname;
+
+  return 0;
+
+error_out:
+  for (i = 0; i < ndeps; i++)
+    free (deps[i].soname);
+  return 1;
+}
+
+int
+prelink_get_relocations (struct prelink_info *info)
+{
+  FILE *f;
+  DSO *dso = info->dso;
+  const char *argv[5];
+  const char *envp[4];
+  int i, ret, status;
+  char *p;
+  const char *dl = dynamic_linker ?: dso->arch->dynamic_linker;
+  const char *ent_filename;
+
+  if (info->ent->type == ET_DYN)
+    {
+      assert (info->ent->base == dso->base);
+      if (info->ent->end < dso->end)
+       {
+         error (0, 0, "%s: grew since it has been recorded", info->ent->filename);
+         return 0;
+       }
+    }
+  else
+    {
+      info->ent->base = dso->base;
+      info->ent->end = dso->end;
+    }
+
+  if (is_ldso_soname (info->dso->soname))
+    return 1;
+
+  info->symbol_count = (info->symtab_end - info->symtab_start)
+                      / info->symtab_entsize;
+  info->symbols = calloc (sizeof (struct prelink_symbol), info->symbol_count);
+
+  i = 0;
+  argv[i++] = dl;
+  if (ld_library_path)
+    {
+      argv[i++] = "--library-path";
+      argv[i++] = ld_library_path;
+    }
+  if (strchr (info->ent->filename, '/') != NULL)
+    ent_filename = info->ent->filename;
+  else
+    {
+      size_t flen = strlen (info->ent->filename);
+      char *p = alloca (2 + flen + 1);
+      memcpy (p, "./", 2);
+      memcpy (p + 2, info->ent->filename, flen + 1);
+      ent_filename = p;
+    }
+  argv[i++] = ent_filename;
+  argv[i] = NULL;
+  envp[0] = "LD_TRACE_LOADED_OBJECTS=1";
+  envp[1] = "LD_BIND_NOW=1";
+  p = alloca (sizeof "LD_TRACE_PRELINKING=" + strlen (info->ent->filename));
+  strcpy (stpcpy (p, "LD_TRACE_PRELINKING="), info->ent->filename);
+  envp[2] = p;
+  envp[3] = NULL;
+
+  ret = 2;
+  f = execve_open (dl, (char * const *)argv, (char * const *)envp);
+  if (f == NULL)
+    {
+      error (0, errno, "%s: Could not trace symbol resolving",
+            info->ent->filename);
+      return 0;
+    }
+
+  if (prelink_record_relocations (info, f, ent_filename))
+    ret = 0;
+
+  if ((status = execve_close (f)))
+    {
+      if (ret)
+       error (0, status == -1 ? errno : 0,
+              "%s Could not trace symbol resolving", info->ent->filename);
+      return 0;
+    }
+
+  return ret;
+}
diff --git a/src/hashtab.c b/src/hashtab.c
new file mode 100644 (file)
index 0000000..fa27446
--- /dev/null
@@ -0,0 +1,609 @@
+/* An expandable hash tables datatype.
+   Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
+   Contributed by Vladimir Makarov (vmakarov@cygnus.com).
+
+This file is part of the libiberty library.
+Libiberty is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public
+License as published by the Free Software Foundation; either
+version 2 of the License, or (at your option) any later version.
+
+Libiberty is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with libiberty; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* This package implements basic hash table functionality.  It is possible
+   to search for an entry, create an entry and destroy an entry.
+
+   Elements in the table are generic pointers.
+
+   The size of the table is not fixed; if the occupancy of the table
+   grows too high the hash table will be expanded.
+
+   The abstract data implementation is based on generalized Algorithm D
+   from Knuth's book "The art of computer programming".  Hash table is
+   expanded by creation of new hash table and transferring elements from
+   the old table to the new table. */
+
+#include <config.h>
+#include <sys/types.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include "hashtab.h"
+
+/* This macro defines reserved value for empty table entry. */
+
+#define EMPTY_ENTRY    ((void *) 0)
+
+/* This macro defines reserved value for table entry which contained
+   a deleted element. */
+
+#define DELETED_ENTRY  ((void *) 1)
+
+static unsigned long higher_prime_number (unsigned long);
+static hashval_t hash_pointer (const void *);
+static int eq_pointer (const void *, const void *);
+static int htab_expand (htab_t);
+static void **find_empty_slot_for_expand  (htab_t, hashval_t);
+
+/* At some point, we could make these be NULL, and modify the
+   hash-table routines to handle NULL specially; that would avoid
+   function-call overhead for the common case of hashing pointers.  */
+htab_hash htab_hash_pointer = hash_pointer;
+htab_eq htab_eq_pointer = eq_pointer;
+
+/* The following function returns a nearest prime number which is
+   greater than N, and near a power of two. */
+
+static unsigned long
+higher_prime_number (n)
+     unsigned long n;
+{
+  /* These are primes that are near, but slightly smaller than, a
+     power of two.  */
+  static unsigned long primes[] = {
+    (unsigned long) 2,
+    (unsigned long) 7,
+    (unsigned long) 13,
+    (unsigned long) 31,
+    (unsigned long) 61,
+    (unsigned long) 127,
+    (unsigned long) 251,
+    (unsigned long) 509,
+    (unsigned long) 1021,
+    (unsigned long) 2039,
+    (unsigned long) 4093,
+    (unsigned long) 8191,
+    (unsigned long) 16381,
+    (unsigned long) 32749,
+    (unsigned long) 65521,
+    (unsigned long) 131071,
+    (unsigned long) 262139,
+    (unsigned long) 524287,
+    (unsigned long) 1048573,
+    (unsigned long) 2097143,
+    (unsigned long) 4194301,
+    (unsigned long) 8388593,
+    (unsigned long) 16777213,
+    (unsigned long) 33554393,
+    (unsigned long) 67108859,
+    (unsigned long) 134217689,
+    (unsigned long) 268435399,
+    (unsigned long) 536870909,
+    (unsigned long) 1073741789,
+    (unsigned long) 2147483647,
+                                       /* 4294967291L */
+    ((unsigned long) 2147483647) + ((unsigned long) 2147483644),
+  };
+
+  unsigned long* low = &primes[0];
+  unsigned long* high = &primes[sizeof(primes) / sizeof(primes[0])];
+
+  while (low != high)
+    {
+      unsigned long* mid = low + (high - low) / 2;
+      if (n > *mid)
+       low = mid + 1;
+      else
+       high = mid;
+    }
+
+  /* If we've run out of primes, abort.  */
+  if (n > *low)
+    {
+      fprintf (stderr, "Cannot find prime bigger than %lu\n", n);
+      abort ();
+    }
+
+  return *low;
+}
+
+/* Returns a hash code for P.  */
+
+static hashval_t
+hash_pointer (p)
+     const void * p;
+{
+  return (hashval_t) ((long)p >> 3);
+}
+
+/* Returns non-zero if P1 and P2 are equal.  */
+
+static int
+eq_pointer (p1, p2)
+     const void * p1;
+     const void * p2;
+{
+  return p1 == p2;
+}
+
+/* This function creates table with length slightly longer than given
+   source length.  The created hash table is initiated as empty (all the
+   hash table entries are EMPTY_ENTRY).  The function returns the created
+   hash table.  Memory allocation may fail; it may return NULL.  */
+
+htab_t
+htab_try_create (size, hash_f, eq_f, del_f)
+     size_t size;
+     htab_hash hash_f;
+     htab_eq eq_f;
+     htab_del del_f;
+{
+  htab_t result;
+
+  size = higher_prime_number (size);
+  result = (htab_t) calloc (1, sizeof (struct htab));
+  if (result == NULL)
+    return NULL;
+
+  result->entries = (void **) calloc (size, sizeof (void *));
+  if (result->entries == NULL)
+    {
+      free (result);
+      return NULL;
+    }
+
+  result->size = size;
+  result->hash_f = hash_f;
+  result->eq_f = eq_f;
+  result->del_f = del_f;
+  result->return_allocation_failure = 1;
+  return result;
+}
+
+/* This function frees all memory allocated for given hash table.
+   Naturally the hash table must already exist. */
+
+void
+htab_delete (htab)
+     htab_t htab;
+{
+  int i;
+
+  if (htab->del_f)
+    for (i = htab->size - 1; i >= 0; i--)
+      if (htab->entries[i] != EMPTY_ENTRY
+         && htab->entries[i] != DELETED_ENTRY)
+       (*htab->del_f) (htab->entries[i]);
+
+  free (htab->entries);
+  free (htab);
+}
+
+/* This function clears all entries in the given hash table.  */
+
+void
+htab_empty (htab)
+     htab_t htab;
+{
+  int i;
+
+  if (htab->del_f)
+    for (i = htab->size - 1; i >= 0; i--)
+      if (htab->entries[i] != EMPTY_ENTRY
+         && htab->entries[i] != DELETED_ENTRY)
+       (*htab->del_f) (htab->entries[i]);
+
+  memset (htab->entries, 0, htab->size * sizeof (void *));
+}
+
+/* Similar to htab_find_slot, but without several unwanted side effects:
+    - Does not call htab->eq_f when it finds an existing entry.
+    - Does not change the count of elements/searches/collisions in the
+      hash table.
+   This function also assumes there are no deleted entries in the table.
+   HASH is the hash value for the element to be inserted.  */
+
+static void **
+find_empty_slot_for_expand (htab, hash)
+     htab_t htab;
+     hashval_t hash;
+{
+  size_t size = htab->size;
+  hashval_t hash2 = 1 + hash % (size - 2);
+  unsigned int index = hash % size;
+
+  for (;;)
+    {
+      void **slot = htab->entries + index;
+
+      if (*slot == EMPTY_ENTRY)
+       return slot;
+      else if (*slot == DELETED_ENTRY)
+       abort ();
+
+      index += hash2;
+      if (index >= size)
+       index -= size;
+    }
+}
+
+/* The following function changes size of memory allocated for the
+   entries and repeatedly inserts the table elements.  The occupancy
+   of the table after the call will be about 50%.  Naturally the hash
+   table must already exist.  Remember also that the place of the
+   table entries is changed.  If memory allocation failures are allowed,
+   this function will return zero, indicating that the table could not be
+   expanded.  If all goes well, it will return a non-zero value.  */
+
+static int
+htab_expand (htab)
+     htab_t htab;
+{
+  void **oentries;
+  void **olimit;
+  void **p;
+
+  oentries = htab->entries;
+  olimit = oentries + htab->size;
+
+  htab->size = higher_prime_number (htab->size * 2);
+
+  if (htab->return_allocation_failure)
+    {
+      void **nentries = (void **) calloc (htab->size, sizeof (void **));
+      if (nentries == NULL)
+       return 0;
+      htab->entries = nentries;
+    }
+
+  htab->n_elements -= htab->n_deleted;
+  htab->n_deleted = 0;
+
+  p = oentries;
+  do
+    {
+      void * x = *p;
+
+      if (x != EMPTY_ENTRY && x != DELETED_ENTRY)
+       {
+         void **q = find_empty_slot_for_expand (htab, (*htab->hash_f) (x));
+
+         *q = x;
+       }
+
+      p++;
+    }
+  while (p < olimit);
+
+  free (oentries);
+  return 1;
+}
+
+/* This function searches for a hash table entry equal to the given
+   element.  It cannot be used to insert or delete an element.  */
+
+void *
+htab_find_with_hash (htab, element, hash)
+     htab_t htab;
+     const void * element;
+     hashval_t hash;
+{
+  unsigned int index;
+  hashval_t hash2;
+  size_t size;
+  void * entry;
+
+  htab->searches++;
+  size = htab->size;
+  index = hash % size;
+
+  entry = htab->entries[index];
+  if (entry == EMPTY_ENTRY
+      || (entry != DELETED_ENTRY && (*htab->eq_f) (entry, element)))
+    return entry;
+
+  hash2 = 1 + hash % (size - 2);
+
+  for (;;)
+    {
+      htab->collisions++;
+      index += hash2;
+      if (index >= size)
+       index -= size;
+
+      entry = htab->entries[index];
+      if (entry == EMPTY_ENTRY
+         || (entry != DELETED_ENTRY && (*htab->eq_f) (entry, element)))
+       return entry;
+    }
+}
+
+/* Like htab_find_slot_with_hash, but compute the hash value from the
+   element.  */
+
+void *
+htab_find (htab, element)
+     htab_t htab;
+     const void * element;
+{
+  return htab_find_with_hash (htab, element, (*htab->hash_f) (element));
+}
+
+/* This function searches for a hash table slot containing an entry
+   equal to the given element.  To delete an entry, call this with
+   INSERT = 0, then call htab_clear_slot on the slot returned (possibly
+   after doing some checks).  To insert an entry, call this with
+   INSERT = 1, then write the value you want into the returned slot.
+   When inserting an entry, NULL may be returned if memory allocation
+   fails.  */
+
+void **
+htab_find_slot_with_hash (htab, element, hash, insert)
+     htab_t htab;
+     const void * element;
+     hashval_t hash;
+     enum insert_option insert;
+{
+  void **first_deleted_slot;
+  unsigned int index;
+  hashval_t hash2;
+  size_t size;
+
+  if (insert == INSERT && htab->size * 3 <= htab->n_elements * 4
+      && htab_expand (htab) == 0)
+    return NULL;
+
+  size = htab->size;
+  hash2 = 1 + hash % (size - 2);
+  index = hash % size;
+
+  htab->searches++;
+  first_deleted_slot = NULL;
+
+  for (;;)
+    {
+      void * entry = htab->entries[index];
+      if (entry == EMPTY_ENTRY)
+       {
+         if (insert == NO_INSERT)
+           return NULL;
+
+         htab->n_elements++;
+
+         if (first_deleted_slot)
+           {
+             *first_deleted_slot = EMPTY_ENTRY;
+             return first_deleted_slot;
+           }
+
+         return &htab->entries[index];
+       }
+
+      if (entry == DELETED_ENTRY)
+       {
+         if (!first_deleted_slot)
+           first_deleted_slot = &htab->entries[index];
+       }
+      else  if ((*htab->eq_f) (entry, element))
+       return &htab->entries[index];
+
+      htab->collisions++;
+      index += hash2;
+      if (index >= size)
+       index -= size;
+    }
+}
+
+/* Like htab_find_slot_with_hash, but compute the hash value from the
+   element.  */
+
+void **
+htab_find_slot (htab, element, insert)
+     htab_t htab;
+     const void * element;
+     enum insert_option insert;
+{
+  return htab_find_slot_with_hash (htab, element, (*htab->hash_f) (element),
+                                  insert);
+}
+
+/* This function deletes an element with the given value from hash
+   table.  If there is no matching element in the hash table, this
+   function does nothing.  */
+
+void
+htab_remove_elt (htab, element)
+     htab_t htab;
+     void * element;
+{
+  void **slot;
+
+  slot = htab_find_slot (htab, element, NO_INSERT);
+  if (*slot == EMPTY_ENTRY)
+    return;
+
+  if (htab->del_f)
+    (*htab->del_f) (*slot);
+
+  *slot = DELETED_ENTRY;
+  htab->n_deleted++;
+}
+
+/* This function clears a specified slot in a hash table.  It is
+   useful when you've already done the lookup and don't want to do it
+   again.  */
+
+void
+htab_clear_slot (htab, slot)
+     htab_t htab;
+     void **slot;
+{
+  if (slot < htab->entries || slot >= htab->entries + htab->size
+      || *slot == EMPTY_ENTRY || *slot == DELETED_ENTRY)
+    abort ();
+
+  if (htab->del_f)
+    (*htab->del_f) (*slot);
+
+  *slot = DELETED_ENTRY;
+  htab->n_deleted++;
+}
+
+/* This function scans over the entire hash table calling
+   CALLBACK for each live entry.  If CALLBACK returns false,
+   the iteration stops.  INFO is passed as CALLBACK's second
+   argument.  */
+
+void
+htab_traverse (htab, callback, info)
+     htab_t htab;
+     htab_trav callback;
+     void * info;
+{
+  void **slot = htab->entries;
+  void **limit = slot + htab->size;
+
+  do
+    {
+      void * x = *slot;
+
+      if (x != EMPTY_ENTRY && x != DELETED_ENTRY)
+       if (!(*callback) (slot, info))
+         break;
+    }
+  while (++slot < limit);
+}
+
+/* Return the current size of given hash table. */
+
+size_t
+htab_size (htab)
+     htab_t htab;
+{
+  return htab->size;
+}
+
+/* Return the current number of elements in given hash table. */
+
+size_t
+htab_elements (htab)
+     htab_t htab;
+{
+  return htab->n_elements - htab->n_deleted;
+}
+
+/* Return the fraction of fixed collisions during all work with given
+   hash table. */
+
+double
+htab_collisions (htab)
+     htab_t htab;
+{
+  if (htab->searches == 0)
+    return 0.0;
+
+  return (double) htab->collisions / (double) htab->searches;
+}
+
+#ifndef NDEBUG
+void
+htab_dump (htab, name, dumpfn)
+     htab_t htab;
+     const char *name;
+     htab_dumpfn dumpfn;
+{
+  FILE *f = fopen (name, "w");
+  size_t i, j;
+
+  if (f == NULL)
+    abort ();
+  fprintf (f, "size %zd n_elements %zd n_deleted %zd\n",
+          htab->size, htab->n_elements, htab->n_deleted);
+  for (i = 0; i < htab->size; ++i)
+    {
+      if (htab->entries [i] == EMPTY_ENTRY
+         || htab->entries [i] == DELETED_ENTRY)
+       {
+         for (j = i + 1; j < htab->size; ++j)
+           if (htab->entries [j] != htab->entries [i])
+             break;
+         fprintf (f, "%c%zd\n",
+                  htab->entries [i] == EMPTY_ENTRY ? 'E' : 'D',
+                  j - i);
+         i = j - 1;
+       }
+      else
+       {
+         fputc ('V', f);
+         (*dumpfn) (f, htab->entries [i]);
+       }
+    }
+  fclose (f);
+}
+
+void
+htab_restore (htab, name, restorefn)
+     htab_t htab;
+     const char *name;
+     htab_restorefn restorefn;
+{
+  FILE *f = fopen (name, "r");
+  size_t size, n_elements, n_deleted, i, j, k;
+  int c;
+
+  if (f == NULL)
+    abort ();
+  if (fscanf (f, "size %zd n_elements %zd n_deleted %zd\n",
+             &size, &n_elements, &n_deleted) != 3)
+    abort ();
+  htab_empty (htab);
+  free (htab->entries);
+  htab->entries = (void **) calloc (size, sizeof (void *));
+  if (htab->entries == NULL)
+    abort ();
+  htab->size = size;
+  htab->n_elements = n_elements;
+  htab->n_deleted = n_deleted;
+  for (i = 0; i < htab->size; ++i)
+    {
+      switch ((c = fgetc (f)))
+       {
+       case 'E':
+       case 'D':
+         if (fscanf (f, "%zd\n", &j) != 1)
+           abort ();
+         if (i + j > htab->size)
+           abort ();
+         if (c == 'D')
+           for (k = i; k < i + j; ++k)
+             htab->entries [k] = DELETED_ENTRY;
+         i += j - 1;
+         break;
+       case 'V':
+         htab->entries [i] = (*restorefn) (f);
+         break;
+       default:
+         abort ();
+       }
+    }
+  fclose (f);
+}
+#endif
diff --git a/src/hashtab.h b/src/hashtab.h
new file mode 100644 (file)
index 0000000..31e63e0
--- /dev/null
@@ -0,0 +1,155 @@
+/* An expandable hash tables datatype.
+   Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+   Contributed by Vladimir Makarov (vmakarov@cygnus.com).
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+/* This package implements basic hash table functionality.  It is possible
+   to search for an entry, create an entry and destroy an entry.
+
+   Elements in the table are generic pointers.
+
+   The size of the table is not fixed; if the occupancy of the table
+   grows too high the hash table will be expanded.
+
+   The abstract data implementation is based on generalized Algorithm D
+   from Knuth's book "The art of computer programming".  Hash table is
+   expanded by creation of new hash table and transferring elements from
+   the old table to the new table.  */
+
+#ifndef __HASHTAB_H__
+#define __HASHTAB_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/* The type for a hash code.  */
+typedef unsigned int hashval_t;
+
+/* Callback function pointer types.  */
+
+/* Calculate hash of a table entry.  */
+typedef hashval_t (*htab_hash) (const void *);
+
+/* Compare a table entry with a possible entry.  The entry already in
+   the table always comes first, so the second element can be of a
+   different type (but in this case htab_find and htab_find_slot
+   cannot be used; instead the variants that accept a hash value
+   must be used).  */
+typedef int (*htab_eq) (const void *, const void *);
+
+/* Cleanup function called whenever a live element is removed from
+   the hash table.  */
+typedef void (*htab_del) (void *);
+
+/* Function called by htab_traverse for each live element.  The first
+   arg is the slot of the element (which can be passed to htab_clear_slot
+   if desired), the second arg is the auxiliary pointer handed to
+   htab_traverse.  Return 1 to continue scan, 0 to stop.  */
+typedef int (*htab_trav) (void **, void *);
+
+/* Hash tables are of the following type.  The structure
+   (implementation) of this type is not needed for using the hash
+   tables.  All work with hash table should be executed only through
+   functions mentioned below. */
+
+struct htab
+{
+  /* Pointer to hash function.  */
+  htab_hash hash_f;
+
+  /* Pointer to comparison function.  */
+  htab_eq eq_f;
+
+  /* Pointer to cleanup function.  */
+  htab_del del_f;
+
+  /* Table itself.  */
+  void **entries;
+
+  /* Current size (in entries) of the hash table */
+  size_t size;
+
+  /* Current number of elements including also deleted elements */
+  size_t n_elements;
+
+  /* Current number of deleted elements in the table */
+  size_t n_deleted;
+
+  /* The following member is used for debugging. Its value is number
+     of all calls of `htab_find_slot' for the hash table. */
+  unsigned int searches;
+
+  /* The following member is used for debugging.  Its value is number
+     of collisions fixed for time of work with the hash table. */
+  unsigned int collisions;
+
+  /* This is non-zero if we are allowed to return NULL for function calls
+     that allocate memory.  */
+  int return_allocation_failure;
+};
+
+typedef struct htab *htab_t;
+
+/* An enum saying whether we insert into the hash table or not.  */
+enum insert_option {NO_INSERT, INSERT};
+
+/* The prototypes of the package functions. */
+
+/* This function is like htab_create, but may return NULL if memory
+   allocation fails, and also signals that htab_find_slot_with_hash and
+   htab_find_slot are allowed to return NULL when inserting.  */
+extern htab_t  htab_try_create (size_t, htab_hash, htab_eq, htab_del);
+extern void    htab_delete     (htab_t);
+extern void    htab_empty      (htab_t);
+
+extern void    *htab_find      (htab_t, const void *);
+extern void    **htab_find_slot        (htab_t, const void *, enum insert_option);
+extern void    *htab_find_with_hash (htab_t, const void *, hashval_t);
+extern void    **htab_find_slot_with_hash (htab_t, const void *, hashval_t,
+                                         enum insert_option);
+extern void    htab_clear_slot (htab_t, void **);
+extern void    htab_remove_elt (htab_t, void *);
+
+extern void    htab_traverse   (htab_t, htab_trav, void *);
+
+extern size_t  htab_size       (htab_t);
+extern size_t  htab_elements   (htab_t);
+extern double  htab_collisions (htab_t);
+
+/* A hash function for pointers.  */
+extern htab_hash htab_hash_pointer;
+
+/* An equality function for pointers.  */
+extern htab_eq htab_eq_pointer;
+
+#ifndef NDEBUG
+
+#include <stdio.h>
+
+typedef void (*htab_dumpfn) (FILE *, const void *);
+typedef void *(*htab_restorefn) (FILE *);
+
+extern void    htab_dump (htab_t, const char *, htab_dumpfn);
+extern void    htab_restore (htab_t, const char *, htab_restorefn);
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __HASHTAB_H */
diff --git a/src/layout.c b/src/layout.c
new file mode 100644 (file)
index 0000000..9292425
--- /dev/null
@@ -0,0 +1,647 @@
+/* Copyright (C) 2001, 2002, 2003, 2004, 2006 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <alloca.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include "prelinktab.h"
+#include "layout.h"
+
+#ifndef NDEBUG
+# define DEBUG_LAYOUT
+#endif
+
+#ifdef DEBUG_LAYOUT
+void
+print_ent (struct prelink_entry *e)
+{
+  printf ("%s: %08x %08x/%08x\n",
+         e->filename, (int)e->base, (int)e->end, (int)e->layend);
+}
+
+void
+print_list (struct prelink_entry *e)
+{
+  for (; e; e = e->next)
+    print_ent (e);
+  printf ("\n");
+}
+#endif
+
+static int
+find_arches (void **p, void *info)
+{
+  struct layout_libs *l = (struct layout_libs *) info;
+  struct prelink_entry *e = * (struct prelink_entry **) p;
+  int i;
+
+  if (e->type == ET_DYN || e->type == ET_EXEC
+      || e->type == ET_CACHE_DYN || e->type == ET_CACHE_EXEC)
+    {
+      for (i = 0; i < l->nbinlibs; ++i)
+       if ((l->binlibs[i]->flags & (PCF_ELF64 | PCF_MACHINE))
+           == (e->flags & (PCF_ELF64 | PCF_MACHINE)))
+         return 1;
+
+      l->binlibs[l->nbinlibs++] = e;
+    }
+
+  return 1;
+}
+
+static int
+find_libs (void **p, void *info)
+{
+  struct layout_libs *l = (struct layout_libs *) info;
+  struct prelink_entry *e = * (struct prelink_entry **) p;
+
+  if ((e->flags & (PCF_ELF64 | PCF_MACHINE)) != l->flags)
+    return 1;
+
+  if (e->type == ET_DYN || e->type == ET_EXEC
+      || e->type == ET_CACHE_DYN || e->type == ET_CACHE_EXEC)
+    l->binlibs[l->nbinlibs++] = e;
+  if (e->type == ET_DYN || e->type == ET_CACHE_DYN)
+    l->libs[l->nlibs++] = e;
+  if (force)
+    e->done = 0;
+  if (e->type == ET_CACHE_DYN || e->type == ET_CACHE_EXEC)
+    e->done = 2;
+  if (e->base & (l->max_page_size - 1))
+    {
+      e->done = 0;
+      e->end -= e->base;
+      e->base = 0;
+    }
+
+  return 1;
+}
+
+static int
+refs_cmp (const void *A, const void *B)
+{
+  struct prelink_entry *a = * (struct prelink_entry **) A;
+  struct prelink_entry *b = * (struct prelink_entry **) B;
+  int i;
+
+  /* Dynamic linkers first.  */
+  if (! a->ndepends && b->ndepends)
+    return -1;
+  if (a->ndepends && ! b->ndepends)
+    return 1;
+  /* Most widely used libraries first.  */
+  if (a->refs > b->refs)
+    return -1;
+  if (a->refs < b->refs)
+    return 1;
+  /* Largest libraries first.  */
+  if (a->layend - a->base > b->layend - b->base)
+    return -1;
+  if (a->layend - a->base < b->layend - b->base)
+    return 1;
+  if (a->refs)
+    {
+      i = strcmp (a->soname, b->soname);
+      if (i)
+       return i;
+    }
+  return strcmp (a->filename, b->filename);
+}
+
+static int
+refs_rnd_cmp (const void *A, const void *B)
+{
+  struct prelink_entry *a = * (struct prelink_entry **) A;
+  struct prelink_entry *b = * (struct prelink_entry **) B;
+  int i, refs;
+
+  /* Dynamic linkers first.  */
+  if (! a->ndepends && b->ndepends)
+    return -1;
+  if (a->ndepends && ! b->ndepends)
+    return 1;
+  /* Most widely used libraries first with some randomization.  */
+  refs = a->refs < b->refs ? a->refs : b->refs;
+  if (refs < 8)
+    i = 1;
+  else if (refs < 32)
+    i = 2;
+  else if (refs < 128)
+    i = 4;
+  else
+    i = 8;
+  if (a->refs > b->refs && a->refs - b->refs >= i)
+    return -1;
+  if (a->refs < b->refs && b->refs - a->refs >= i)
+    return 1;
+  if (a->u.tmp < b->u.tmp)
+    return -1;
+  if (a->u.tmp > b->u.tmp)
+    return 1;
+  /* Largest libraries first.  */
+  if (a->layend - a->base > b->layend - b->base)
+    return -1;
+  if (a->layend - a->base < b->layend - b->base)
+    return 1;
+  if (a->refs && b->refs)
+    {
+      i = strcmp (a->soname, b->soname);
+      if (i)
+       return i;
+    }
+  return strcmp (a->filename, b->filename);
+}
+
+static int
+addr_cmp (const void *A, const void *B)
+{
+  struct prelink_entry *a = * (struct prelink_entry **) A;
+  struct prelink_entry *b = * (struct prelink_entry **) B;
+
+  if (! a->done)
+    return b->done ? 1 : 0;
+  else if (! b->done)
+    return -1;
+  if (a->base < b->base)
+    return -1;
+  else if (a->base > b->base)
+    return 1;
+  if (a->layend < b->layend)
+    return -1;
+  else if (a->layend > b->layend)
+    return 1;
+  return 0;
+}
+
+int deps_cmp (const void *A, const void *B)
+{
+  struct prelink_entry *a = * (struct prelink_entry **) A;
+  struct prelink_entry *b = * (struct prelink_entry **) B;
+
+  if (a->base < b->base)
+    return -1;
+  if (a->base > b->base)
+    return 1;
+  return 0;
+}
+
+int
+layout_libs (void)
+{
+  struct layout_libs l;
+  int arch, *arches, narches;
+  struct prelink_entry **plibs, **pbinlibs;
+
+  memset (&l, 0, sizeof (l));
+  l.libs = plibs =
+    (struct prelink_entry **) alloca (prelink_entry_count
+                                     * sizeof (struct prelink_entry *));
+  l.binlibs = pbinlibs =
+    (struct prelink_entry **) alloca (prelink_entry_count
+                                     * sizeof (struct prelink_entry *));
+  htab_traverse (prelink_filename_htab, find_arches, &l);
+  narches = l.nbinlibs;
+  arches = (int *) alloca (narches * sizeof (int));
+  for (arch = 0; arch < narches; ++arch)
+    arches[arch] = l.binlibs[arch]->flags & (PCF_ELF64 | PCF_MACHINE);
+
+  for (arch = 0; arch < narches; ++arch)
+    {
+      struct PLArch *plarch;
+      extern struct PLArch __start_pl_arch[], __stop_pl_arch[];
+      int i, j, k, m, done, class;
+      GElf_Addr mmap_start, mmap_base, mmap_end, mmap_fin, max_page_size;
+      GElf_Addr base, size;
+      struct prelink_entry *list, *e, *fake, **deps;
+      struct prelink_entry fakeent;
+      int fakecnt;
+      int (*layout_libs_pre) (struct layout_libs *l);
+      int (*layout_libs_post) (struct layout_libs *l);
+
+      for (plarch = __start_pl_arch; plarch < __stop_pl_arch; plarch++)
+       if (plarch->class == (arches[arch] & PCF_ELF64 ? ELFCLASS64 : ELFCLASS32)
+           && plarch->machine == (arches[arch] & PCF_MACHINE))
+         break;
+
+      if (plarch == __stop_pl_arch)
+       error (EXIT_FAILURE, 0, "%d-bit ELF e_machine %04x not supported",
+              (arches[arch] & PCF_ELF64) ? 64 : 32, arches[arch] & PCF_MACHINE);
+
+      list = NULL;
+      fake = NULL;
+      fakecnt = 0;
+      memset (&l, 0, sizeof (l));
+      l.flags = arches[arch];
+      l.libs = plibs;
+      l.binlibs = pbinlibs;
+      l.max_page_size = plarch->max_page_size;
+      htab_traverse (prelink_filename_htab, find_libs, &l);
+      max_page_size = plarch->max_page_size;
+
+      /* Make sure there is some room between libraries.  */
+      for (i = 0; i < l.nlibs; ++i)
+       l.libs[i]->layend = (l.libs[i]->end + 8192 + max_page_size - 1)
+                           & ~(max_page_size - 1);
+
+      if (plarch->layout_libs_init)
+       {
+         plarch->layout_libs_init (&l);
+         mmap_base = l.mmap_base;
+         mmap_end = l.mmap_end;
+       }
+      else
+       {
+         mmap_base = plarch->mmap_base;
+         mmap_end = plarch->mmap_end;
+       }
+      if (mmap_reg_start != ~(GElf_Addr) 0)
+       mmap_base = mmap_reg_start;
+      if (mmap_reg_end != ~(GElf_Addr) 0)
+       mmap_end = mmap_reg_end;
+      if (mmap_base >= mmap_end)
+       error (EXIT_FAILURE, 0,
+              "--mmap-region-start cannot be bigger than --mmap-region-end");
+      class = plarch->class;
+      /* The code below relies on having a VA slot as big as <mmap_base,mmap_end)
+        above mmap_end for -R.  */
+      if (mmap_end + (mmap_end - mmap_base) <= mmap_end)
+       random_base = 0;
+      layout_libs_pre = plarch->layout_libs_pre;
+      layout_libs_post = plarch->layout_libs_post;
+
+      deps = (struct prelink_entry **)
+            alloca (l.nlibs * sizeof (struct prelink_entry *));
+
+      /* Now see which already prelinked libraries have to be
+        re-prelinked to avoid overlaps.  */
+      for (i = 0; i < l.nbinlibs; ++i)
+       {
+         for (j = 0, k = 0; j < l.binlibs[i]->ndepends; ++j)
+           if (l.binlibs[i]->depends[j]->type == ET_DYN
+               && l.binlibs[i]->depends[j]->done)
+             deps[k++] = l.binlibs[i]->depends[j];
+         if (k)
+           {
+             qsort (deps, k, sizeof (struct prelink_entry *), deps_cmp);
+             for (j = 1; j < k; ++j)
+               if (deps[j]->base < deps[j - 1]->end
+                   && (deps[j]->type == ET_DYN
+                       || deps[j - 1]->type == ET_DYN))
+                 {
+                   if (deps[j - 1]->refs < deps[j]->refs)
+                     --j;
+                   deps[j]->done = 0;
+                   --k;
+                   memmove (deps + j, deps + j + 1, (k - j) * sizeof (*deps));
+                   if (j > 0)
+                     --j;
+                 }
+           }
+       }
+
+      /* If layout_libs_init or the for cycle above cleared
+        done flags for some libraries, make sure all libraries
+        that depend on them are re-prelinked as well.  */
+      for (i = 0; i < l.nlibs; ++i)
+       if (l.libs[i]->done)
+         for (j = 0; j < l.libs[i]->ndepends; ++j)
+           if (l.libs[i]->depends[j]->done == 0)
+             {
+               l.libs[i]->done = 0;
+               break;
+             }
+
+      /* Put the already prelinked libs into double linked list.  */
+      qsort (l.libs, l.nlibs, sizeof (struct prelink_entry *), addr_cmp);
+      for (i = 0; i < l.nlibs; ++i)
+       if (! l.libs[i]->done || l.libs[i]->layend >= mmap_base)
+         break;
+      j = 0;
+      if (i < l.nlibs && l.libs[i]->done)
+       {
+         if (l.libs[i]->base < mmap_base)
+           random_base = 0;
+         for (j = i + 1; j < l.nlibs; ++j)
+           {
+             if (! l.libs[j]->done || l.libs[j]->base >= mmap_end)
+               break;
+
+             if (l.libs[j]->base < mmap_base || l.libs[j]->layend > mmap_end)
+               random_base = 0;
+             l.libs[j]->prev = l.libs[j - 1];
+             l.libs[j - 1]->next = l.libs[j];
+           }
+         list = l.libs[i];
+         list->prev = l.libs[j - 1];
+         while (j < l.nlibs && l.libs[j]->done) ++j;
+       }
+
+      mmap_start = mmap_base;
+      mmap_fin = mmap_end;
+      done = 1;
+      if (random_base & 2)
+       {
+         mmap_start = seed;
+         if (mmap_start < mmap_base || mmap_start >= mmap_end)
+           mmap_start = mmap_base;
+
+         mmap_start = (mmap_start + max_page_size - 1) & ~(max_page_size - 1);
+       }
+      else if (random_base)
+       {
+         int fd = open ("/dev/urandom", O_RDONLY);
+
+         mmap_start = 0;
+         if (fd != -1)
+           {
+             GElf_Addr x;
+
+             if (read (fd, &x, sizeof (x)) == sizeof (x))
+               {
+                 mmap_start = x % (mmap_end - mmap_base);
+                 mmap_start += mmap_base;
+               }
+
+             close (fd);
+           }
+
+         if (! mmap_start)
+           {
+             mmap_start = ((mmap_end - mmap_base) >> 16)
+                          * (time (NULL) & 0xffff);
+             mmap_start += mmap_base;
+           }
+
+         seed = mmap_start;
+         mmap_start = (mmap_start + max_page_size - 1) & ~(max_page_size - 1);
+       }
+      if (random_base)
+       {
+         srandom (mmap_start >> 12);
+         for (i = 0; i < l.nlibs; ++i)
+           l.libs[i]->u.tmp = random ();
+         qsort (l.libs, l.nlibs, sizeof (struct prelink_entry *), refs_rnd_cmp);
+       }
+      else
+       qsort (l.libs, l.nlibs, sizeof (struct prelink_entry *), refs_cmp);
+
+      if (verbose && l.nlibs > j)
+       {
+         printf ("Laying out %d libraries in virtual address space %0*llx-%0*llx\n",
+                 l.nlibs - j, class == ELFCLASS32 ? 8 : 16, (long long) mmap_base,
+                 class == ELFCLASS32 ? 8 : 16, (long long) mmap_end);
+         if (mmap_start != mmap_base)
+           printf ("Random base 0x%0*llx\n", class == ELFCLASS32 ? 8 : 16,
+                   (long long) mmap_start);
+       }
+
+      if (layout_libs_pre)
+       {
+         l.list = list;
+         l.mmap_base = mmap_base;
+         l.mmap_start = mmap_start;
+         l.mmap_end = mmap_end;
+         layout_libs_pre (&l);
+         list = l.list;
+         mmap_base = l.mmap_base;
+         mmap_start = l.mmap_start;
+         mmap_fin = l.mmap_fin;
+         mmap_end = l.mmap_end;
+         fake = l.fake;
+         fakecnt = l.fakecnt;
+       }
+
+      if (mmap_start != mmap_base && list)
+       {
+         for (e = list; e != NULL; e = e->next)
+           {
+             if (e->base >= mmap_start)
+               break;
+             if (e->layend > mmap_start)
+               mmap_start = (e->layend + max_page_size - 1)
+                            & ~(max_page_size - 1);
+             e->base += mmap_end - mmap_base;
+             e->end += mmap_end - mmap_base;
+             e->layend += mmap_end - mmap_base;
+             e->done |= 0x80;
+           }
+
+         if (mmap_start < mmap_end)
+           {
+             if (e && e != list)
+               {
+                 memset (&fakeent, 0, sizeof (fakeent));
+                 fakeent.u.tmp = -1;
+                 fakeent.base = mmap_end;
+                 fakeent.end = mmap_end;
+                 fakeent.layend = mmap_end;
+                 fake = &fakeent;
+                 fakecnt = 1;
+                 fakeent.prev = list->prev;
+                 fakeent.next = list;
+                 list->prev = fake;
+                 fakeent.prev->next = fake;
+                 list = e;
+                 e->prev->next = NULL;
+               }
+           }
+         else
+           {
+             mmap_start = mmap_base;
+             for (e = list; e != NULL; e = e->next)
+             if (e->done & 0x80)
+               {
+                 e->done &= ~0x80;
+                 e->base -= mmap_end - mmap_base;
+                 e->end -= mmap_end - mmap_base;
+                 e->layend -= mmap_end - mmap_base;
+               }
+           }
+       }
+
+      if (mmap_start != mmap_base)
+       {
+         done |= 0x80;
+         mmap_fin = mmap_end + (mmap_start - mmap_base);
+       }
+
+      for (i = 0; i < l.nlibs; ++i)
+       l.libs[i]->u.tmp = -1;
+      m = -1;
+
+      for (i = 0; i < l.nlibs; ++i)
+       if (! l.libs[i]->done)
+         {
+           if (conserve_memory)
+             {
+               /* If conserving virtual address space, only consider libraries
+                  which ever appear together with this one.  Otherwise consider
+                  all libraries.  */
+               m = i;
+               for (j = 0; j < l.nbinlibs; ++j)
+                 {
+                   for (k = 0; k < l.binlibs[j]->ndepends; ++k)
+                     if (l.binlibs[j]->depends[k] == l.libs[i])
+                       {
+                         for (k = 0; k < l.binlibs[j]->ndepends; ++k)
+                           l.binlibs[j]->depends[k]->u.tmp = m;
+                         break;
+                       }
+                 }
+               for (j = 0; j < fakecnt; ++j)
+                 fake[j].u.tmp = m;
+             }
+
+           size = l.libs[i]->layend - l.libs[i]->base;
+           base = mmap_start;
+           for (e = list; e; e = e->next)
+             if (e->u.tmp == m)
+               {
+                 if (base + size <= e->base)
+                   goto found;
+
+                 if (base < e->layend)
+                   base = e->layend;
+               }
+
+           if (base + size > mmap_fin)
+             goto not_found;
+found:
+           l.libs[i]->end += base - l.libs[i]->base;
+           l.libs[i]->base = base;
+           l.libs[i]->layend = base + size;
+           if (base >= mmap_end)
+             l.libs[i]->done = done;
+           else
+             l.libs[i]->done = 1;
+           if (list == NULL)
+             {
+               list = l.libs[i];
+               list->prev = list;
+             }
+           else
+             {
+               if (e == NULL)
+                 e = list->prev;
+               else
+                 e = e->prev;
+               while (e != list && e->base > base)
+                 e = e->prev;
+               if (e->base > base)
+                 {
+                   l.libs[i]->next = list;
+                   l.libs[i]->prev = list->prev;
+                   list->prev = l.libs[i];
+                   list = l.libs[i];
+                 }
+               else
+                 {
+                   l.libs[i]->next = e->next;
+                   l.libs[i]->prev = e;
+                   if (e->next)
+                     e->next->prev = l.libs[i];
+                   else
+                     list->prev = l.libs[i];
+                   e->next = l.libs[i];
+                 }
+             }
+#ifdef DEBUG_LAYOUT
+           {
+             struct prelink_entry *last = list;
+             base = 0;
+             for (e = list; e; last = e, e = e->next)
+               {
+                 if (e->base < base)
+                   abort ();
+                 base = e->base;
+                 if ((e == list && e->prev->next != NULL)
+                     || (e != list && e->prev->next != e))
+                   abort ();
+               }
+             if (list->prev != last)
+               abort ();
+           }
+#endif
+           continue;
+
+not_found:
+           error (EXIT_FAILURE, 0, "Could not find virtual address slot for %s",
+                  l.libs[i]->filename);
+         }
+
+      if (layout_libs_post)
+       {
+         l.list = list;
+         layout_libs_post (&l);
+       }
+
+      if (done & 0x80)
+       for (e = list; e != NULL; e = e->next)
+         if (e->done & 0x80)
+           {
+             e->done &= ~0x80;
+             e->base -= mmap_end - mmap_base;
+             e->end -= mmap_end - mmap_base;
+             e->layend -= mmap_base - mmap_base;
+           }
+
+      if (verbose)
+       {
+         if (narches == 1)
+           printf ("Assigned virtual address space slots for libraries:\n");
+         else
+           printf ("Assigned virtual address space slots for %d-bit %s ELF libraries:\n",
+                   class == ELFCLASS32 ? 32 : 64, plarch->name);
+
+         for (i = 0; i < l.nlibs; ++i)
+           if (l.libs[i]->done >= 1)
+             printf ("%-60s %0*llx-%0*llx\n", l.libs[i]->filename,
+                     class == ELFCLASS32 ? 8 : 16, (long long) l.libs[i]->base,
+                     class == ELFCLASS32 ? 8 : 16, (long long) l.libs[i]->end);
+       }
+
+#ifdef DEBUG_LAYOUT
+      for (i = 0; i < l.nbinlibs; ++i)
+       {
+         for (j = 0; j < l.binlibs[i]->ndepends; ++j)
+           if ((l.binlibs[i]->depends[j]->type != ET_DYN
+                && l.binlibs[i]->depends[j]->type != ET_CACHE_DYN)
+               || l.binlibs[i]->depends[j]->done == 0)
+             break;
+         if (j < l.binlibs[i]->ndepends)
+           continue;
+         memcpy (deps, l.binlibs[i]->depends,
+                 l.binlibs[i]->ndepends * sizeof (struct prelink_entry *));
+         qsort (deps, l.binlibs[i]->ndepends, sizeof (struct prelink_entry *),
+                deps_cmp);
+         for (j = 1; j < l.binlibs[i]->ndepends; ++j)
+           if (deps[j]->base
+               < ((deps[j - 1]->end + max_page_size - 1)
+                  & ~(max_page_size - 1))
+               && (deps[j]->type == ET_DYN || deps[j - 1]->type == ET_DYN))
+             abort ();
+       }
+#endif
+    }
+
+  return 0;
+}
diff --git a/src/layout.h b/src/layout.h
new file mode 100644 (file)
index 0000000..f481d22
--- /dev/null
@@ -0,0 +1,35 @@
+/* Copyright (C) 2001, 2004, 2006 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifndef LAYOUT_H
+#define LAYOUT_H
+
+struct layout_libs
+  {
+    struct prelink_entry **libs;
+    struct prelink_entry **binlibs;
+    struct prelink_entry *list;
+    struct prelink_entry *fake;
+    GElf_Addr mmap_base, mmap_start, mmap_fin, mmap_end, max_page_size;
+    void *arch_data;
+    int flags;
+    int nlibs;
+    int nbinlibs;
+    int fakecnt;
+  };
+
+#endif /* LAYOUT_H */
diff --git a/src/main.c b/src/main.c
new file mode 100644 (file)
index 0000000..144ce84
--- /dev/null
@@ -0,0 +1,417 @@
+/* Copyright (C) 2001, 2002, 2003, 2004, 2005, 2007 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <locale.h>
+#include <error.h>
+#include <argp.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "prelink.h"
+
+#define PRELINK_CONF "/etc/prelink.conf"
+#define PRELINK_CACHE "/etc/prelink.cache"
+
+int all;
+int force;
+int verbose;
+int print_cache;
+int reloc_only;
+GElf_Addr reloc_base;
+int no_update;
+int random_base;
+int conserve_memory;
+int libs_only;
+int dry_run;
+int dereference;
+int one_file_system;
+int enable_cxx_optimizations = 1;
+int exec_shield;
+int undo, verify;
+enum verify_method_t verify_method;
+int quick;
+int compute_checksum;
+long long seed;
+GElf_Addr mmap_reg_start = ~(GElf_Addr) 0;
+GElf_Addr mmap_reg_end = ~(GElf_Addr) 0;
+const char *dynamic_linker;
+const char *ld_library_path;
+const char *prelink_conf = PRELINK_CONF;
+const char *prelink_cache = PRELINK_CACHE;
+const char *undo_output;
+
+const char *argp_program_version = "prelink 1.0";
+
+const char *argp_program_bug_address = "<jakub@redhat.com>";
+
+static char argp_doc[] = "prelink -- program to relocate and prelink ELF shared libraries and programs";
+
+#define OPT_DYNAMIC_LINKER     0x80
+#define OPT_LD_LIBRARY_PATH    0x81
+#define OPT_LIBS_ONLY          0x82
+#define OPT_CXX_DISABLE                0x83
+#define OPT_MMAP_REG_START     0x84
+#define OPT_MMAP_REG_END       0x85
+#define OPT_EXEC_SHIELD                0x86
+#define OPT_NO_EXEC_SHIELD     0x87
+#define OPT_SEED               0x88
+#define OPT_MD5                        0x89
+#define OPT_SHA                        0x8a
+#define OPT_COMPUTE_CHECKSUM   0x8b
+
+static struct argp_option options[] = {
+  {"all",              'a', 0, 0,  "Prelink all binaries" },
+  {"black-list",       'b', "PATH", 0, "Blacklist path" },
+  {"cache-file",       'C', "CACHE", 0, "Use CACHE as cache file" },
+  {"config-file",      'c', "CONF", 0, "Use CONF as configuration file" },
+  {"force",            'f', 0, 0,  "Force prelinking" },
+  {"dereference",      'h', 0, 0,  "Follow symlinks when processing directory trees from command line" },
+  {"one-file-system",  'l', 0, 0,  "Stay in local file system when processing directories from command line" },
+  {"conserve-memory",  'm', 0, 0,  "Allow libraries to overlap as long as they never appear in the same program" },
+  {"no-update-cache",  'N', 0, 0,  "Don't update prelink cache" },
+  {"dry-run",          'n', 0, 0,  "Don't actually prelink anything" },
+  {"undo-output",      'o', "FILE", 0, "Undo output file" },
+  {"print-cache",      'p', 0, 0,  "Print prelink cache" },
+  {"quick",            'q', 0, 0,  "Quick scan" },
+  {"random",           'R', 0, 0,  "Choose random base for libraries" },
+  {"reloc-only",       'r', "BASE_ADDRESS", 0,  "Relocate library to given address, don't prelink" },
+  {"undo",             'u', 0, 0,  "Undo prelink" },
+  {"verbose",          'v', 0, 0,  "Produce verbose output" },
+  {"verify",           'y', 0, 0,  "Verify file consistency by undoing and redoing prelink and printing original to standard output" },
+  {"md5",              OPT_MD5, 0, 0, "For verify print MD5 sum of original to standard output instead of content" },
+  {"sha",              OPT_SHA, 0, 0, "For verify print SHA sum of original to standard output instead of content" },
+  {"dynamic-linker",   OPT_DYNAMIC_LINKER, "DYNAMIC_LINKER",
+                               0,  "Special dynamic linker path" },
+  {"exec-shield",      OPT_EXEC_SHIELD, 0, 0, "Lay out libraries for exec-shield on IA-32" },
+  {"no-exec-shield",   OPT_NO_EXEC_SHIELD, 0, 0, "Don't lay out libraries for exec-shield on IA-32" },
+  {"ld-library-path",  OPT_LD_LIBRARY_PATH, "PATHLIST",
+                               0,  "What LD_LIBRARY_PATH should be used" },
+  {"libs-only",                OPT_LIBS_ONLY, 0, 0, "Prelink only libraries, no binaries" },
+  {"disable-c++-optimizations", OPT_CXX_DISABLE, 0, OPTION_HIDDEN, "" },
+  {"mmap-region-start",        OPT_MMAP_REG_START, "BASE_ADDRESS", OPTION_HIDDEN, "" },
+  {"mmap-region-end",  OPT_MMAP_REG_END, "BASE_ADDRESS", OPTION_HIDDEN, "" },
+  {"seed",             OPT_SEED, "SEED", OPTION_HIDDEN, "" },
+  {"compute-checksum", OPT_COMPUTE_CHECKSUM, 0, OPTION_HIDDEN, "" },
+  { 0 }
+};
+
+static error_t
+parse_opt (int key, char *arg, struct argp_state *state)
+{
+  char *endarg;
+
+  switch (key)
+    {
+    case 'a':
+      all = 1;
+      break;
+    case 'b':
+      if (add_to_blacklist (arg, dereference, one_file_system))
+       exit (EXIT_FAILURE);
+      break;
+    case 'f':
+      force = 1;
+      break;
+    case 'p':
+      print_cache = 1;
+      break;
+    case 'q':
+      quick = 1;
+      break;
+    case 'v':
+      ++verbose;
+      break;
+    case 'R':
+      random_base |= 1;
+      break;
+    case OPT_SEED:
+      random_base |= 2;
+      seed = strtoull (arg, &endarg, 0);
+      if (endarg != strchr (arg, '\0'))
+       error (EXIT_FAILURE, 0, "--seed option requires numberic argument");
+      break;
+    case 'r':
+      reloc_only = 1;
+      reloc_base = strtoull (arg, &endarg, 0);
+      if (endarg != strchr (arg, '\0'))
+       error (EXIT_FAILURE, 0, "-r option requires numberic argument");
+      break;
+    case 'h':
+      dereference = 1;
+      break;
+    case 'l':
+      one_file_system = 1;
+      break;
+    case 'm':
+      conserve_memory = 1;
+      break;
+    case 'N':
+      no_update = 1;
+      break;
+    case 'n':
+      dry_run = 1;
+      break;
+    case 'C':
+      prelink_cache = arg;
+      break;
+    case 'c':
+      prelink_conf = arg;
+      break;
+    case 'u':
+      undo = 1;
+      break;
+    case 'y':
+      verify = 1;
+      break;
+    case 'o':
+      undo_output = arg;
+      break;
+    case OPT_DYNAMIC_LINKER:
+      dynamic_linker = arg;
+      break;
+    case OPT_LD_LIBRARY_PATH:
+      ld_library_path = arg;
+      break;
+    case OPT_LIBS_ONLY:
+      libs_only = 1;
+      break;
+    case OPT_MD5:
+      verify_method = VERIFY_MD5;
+      break;
+    case OPT_SHA:
+      verify_method = VERIFY_SHA;
+      break;
+    case OPT_CXX_DISABLE:
+      enable_cxx_optimizations = 0;
+      break;
+    case OPT_MMAP_REG_START:
+      mmap_reg_start = strtoull (arg, &endarg, 0);
+      if (endarg != strchr (arg, '\0'))
+       error (EXIT_FAILURE, 0, "--mmap-region-start option requires numberic argument");
+      break;
+    case OPT_MMAP_REG_END:
+      mmap_reg_end = strtoull (arg, &endarg, 0);
+      if (endarg != strchr (arg, '\0'))
+       error (EXIT_FAILURE, 0, "--mmap-region-end option requires numberic argument");
+      break;
+    case OPT_EXEC_SHIELD:
+      exec_shield = 1;
+      break;
+    case OPT_NO_EXEC_SHIELD:
+      exec_shield = 0;
+      break;
+    case OPT_COMPUTE_CHECKSUM:
+      compute_checksum = 1;
+      break;
+    default:
+      return ARGP_ERR_UNKNOWN;
+    }
+  return 0;
+}
+
+static struct argp argp = { options, parse_opt, "[FILES]", argp_doc };
+
+int
+main (int argc, char *argv[])
+{
+  int remaining, failures = 0;
+
+  setlocale (LC_ALL, "");
+
+  /* Set the default for exec_shield.  */
+  if (! access ("/proc/sys/kernel/exec-shield", F_OK))
+    exec_shield = 1;
+
+  prelink_init_cache ();
+
+  elf_version (EV_CURRENT);
+
+  argp_parse (&argp, argc, argv, 0, &remaining, 0);
+
+  if (ld_library_path == NULL)
+    ld_library_path = getenv ("LD_LIBRARY_PATH");
+
+  if (all && reloc_only)
+    error (EXIT_FAILURE, 0, "--all and --reloc-only options are incompatible");
+  if ((undo || verify) && reloc_only)
+    error (EXIT_FAILURE, 0, "--undo and --reloc-only options are incompatible");
+  if (verify && (undo || all))
+    error (EXIT_FAILURE, 0, "--verify and either --undo or --all options are incompatible");
+  if (dry_run && verify)
+    error (EXIT_FAILURE, 0, "--dry-run and --verify options are incompatible");
+  if ((undo || verify) && quick)
+    error (EXIT_FAILURE, 0, "--undo and --quick options are incompatible");
+
+  if (print_cache)
+    {
+      prelink_load_cache ();
+      prelink_print_cache ();
+      return 0;
+    }
+
+  if (remaining == argc && ! all)
+    error (EXIT_FAILURE, 0, "no files given and --all not used");
+
+  if (undo_output && (!undo || all))
+    error (EXIT_FAILURE, 0, "-o can be only specified together with -u and without -a");
+
+  if (undo_output && remaining + 1 != argc)
+    error (EXIT_FAILURE, 0, "-o can only be used when undoing a single object");
+
+  if (compute_checksum)
+    {
+      while (remaining < argc)
+       {
+         DSO *dso = open_dso (argv[remaining++]);
+
+         if (dso == NULL || reopen_dso (dso, NULL, NULL)
+             || prelink_set_checksum (dso))
+           error (0, 0, "could not recompute checksum of %s", dso->filename);
+         close_dso (dso);
+         error (0, 0, "%08x %s\n", (unsigned int) dso->info_DT_CHECKSUM, dso->filename);
+       }
+      exit (0);
+    }
+
+  if (verify)
+    {
+      if (remaining + 1 != argc)
+       error (EXIT_FAILURE, 0, "only one library or binary can be verified in a single command");
+      return prelink_verify (argv[remaining]);
+    }
+
+  if (reloc_only || (undo && ! all))
+    {
+      while (remaining < argc)
+       {
+         DSO *dso = open_dso (argv[remaining++]);
+         int ret;
+
+         if (dso == NULL)
+           {
+             ++failures;
+             continue;
+           }
+
+         if (dso->ehdr.e_type != ET_DYN
+             && (reloc_only || dso->ehdr.e_type != ET_EXEC))
+           {
+             ++failures;
+             error (0, 0, "%s is not a shared library", dso->filename);
+             continue;
+           }
+
+         if (undo)
+           ret = prelink_undo (dso);
+         else
+           ret = relocate_dso (dso, reloc_base);
+
+         if (ret)
+           {
+             ++failures;
+             close_dso (dso);
+             continue;
+           }
+
+         if (dynamic_info_is_set (dso, DT_CHECKSUM_BIT)
+             && dso_is_rdwr (dso)
+             && prelink_set_checksum (dso))
+           {
+             ++failures;
+             close_dso (dso);
+             continue;
+           }
+
+         if (dry_run)
+           {
+             close_dso (dso);
+             continue;
+           }
+
+         if (reloc_only)
+           dso->permissive = 1;
+         else if (undo_output)
+           {
+             const char *output = strdup (undo_output);
+             const char *orig_filename;
+             if (!output)
+               {
+                 ++failures;
+                 close_dso (dso);
+                 continue;
+               }
+             if (dso->filename != dso->soname)
+               orig_filename = dso->filename;
+             else
+               orig_filename = strdup (dso->filename);
+             if (!orig_filename)
+               {
+                 ++failures;
+                 close_dso (dso);
+                 continue;
+               }
+             dso->filename = output;
+             if (update_dso (dso, orig_filename))
+               ++failures;
+             free ((char *) orig_filename);
+             continue;
+           }
+
+         if (update_dso (dso, NULL))
+           ++failures;
+       }
+
+      return failures;
+    }
+
+  if (read_config (prelink_conf))
+    return EXIT_FAILURE;
+
+  if (blacklist_from_config ())
+    return EXIT_FAILURE;
+
+  if (quick)
+    prelink_load_cache ();
+
+  if (gather_config ())
+    return EXIT_FAILURE;
+
+  while (remaining < argc)
+    if (gather_object (argv[remaining++], dereference, one_file_system))
+      return EXIT_FAILURE;
+
+  if (gather_check_libs ())
+    return EXIT_FAILURE;
+
+  if (undo)
+    return undo_all ();
+
+  if (! all && ! quick)
+    prelink_load_cache ();
+
+  layout_libs ();
+  prelink_all ();
+
+  if (! no_update && ! dry_run)
+    prelink_save_cache (all);
+  return 0;
+}
diff --git a/src/makecrc.c b/src/makecrc.c
new file mode 100644 (file)
index 0000000..db52013
--- /dev/null
@@ -0,0 +1,63 @@
+/* Not copyrighted 1990 Mark Adler */
+
+#ifndef lint
+static char rcsid[] = "$Id: makecrc.c,v 0.6 1993/05/28 07:42:59 jloup Exp $";
+#endif
+
+#include <stdio.h>
+
+main()
+/*
+  Generate a table for a byte-wise 32-bit CRC calculation on the polynomial:
+  x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x+1.
+
+  Polynomials over GF(2) are represented in binary, one bit per coefficient,
+  with the lowest powers in the most significant bit.  Then adding polynomials
+  is just exclusive-or, and multiplying a polynomial by x is a right shift by
+  one.  If we call the above polynomial p, and represent a byte as the
+  polynomial q, also with the lowest power in the most significant bit (so the
+  byte 0xb1 is the polynomial x^7+x^3+x+1), then the CRC is (q*x^32) mod p,
+  where a mod b means the remainder after dividing a by b.
+
+  This calculation is done using the shift-register method of multiplying and
+  taking the remainder.  The register is initialized to zero, and for each
+  incoming bit, x^32 is added mod p to the register if the bit is a one (where
+  x^32 mod p is p+x^32 = x^26+...+1), and the register is multiplied mod p by
+  x (which is shifting right by one and adding x^32 mod p if the bit shifted
+  out is a one).  We start with the highest power (least significant bit) of
+  q and repeat for all eight bits of q.
+
+  The table is simply the CRC of all possible eight bit values.  This is all
+  the information needed to generate CRC's on data a byte at a time for all
+  combinations of CRC register values and incoming bytes.  The table is
+  written to stdout as 256 long hexadecimal values in C language format.
+*/
+{
+  unsigned long c;      /* crc shift register */
+  unsigned long e;      /* polynomial exclusive-or pattern */
+  int i;                /* counter for all possible eight bit values */
+  int k;                /* byte being shifted into crc apparatus */
+
+  /* terms of polynomial defining this crc (except x^32): */
+  static int p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26};
+
+  /* Make exclusive-or pattern from polynomial (0xedb88320) */
+  e = 0;
+  for (i = 0; i < sizeof(p)/sizeof(int); i++)
+    e |= 1L << (31 - p[i]);
+
+  /* Compute and print table of CRC's, five per line */
+  printf("  0x00000000");
+  for (i = 1; i < 256; i++)
+  {
+    c = i;
+    /* The idea to initialize the register with the byte instead of
+     * zero was stolen from Haruhiko Okumura's ar002
+     */
+    for (k = 8; k; k--)
+      c = c & 1 ? (c >> 1) ^ e : c >> 1;
+    printf(i % 5 ? ", 0x%08lx" : ",\n  0x%08lx", c);
+  }
+  putchar('\n');
+  return 0;
+}
diff --git a/src/md5.c b/src/md5.c
new file mode 100644 (file)
index 0000000..0d2fdef
--- /dev/null
+++ b/src/md5.c
@@ -0,0 +1,362 @@
+/* md5.c - Functions to compute MD5 message digest of files or memory blocks
+   according to the definition of MD5 in RFC 1321 from April 1992.
+   Copyright (C) 1995, 1996, 2001, 2003 Free Software Foundation, Inc.
+   NOTE: The canonical source of this file is maintained with the GNU C
+   Library.  Bugs can be reported to bug-glibc@prep.ai.mit.edu.
+
+   This program is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the
+   Free Software Foundation; either version 2, or (at your option) any
+   later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+/* Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.  */
+
+#include <sys/types.h>
+#include <stdlib.h>
+#include <string.h>
+#include <endian.h>
+#include <byteswap.h>
+#include "md5.h"
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+# define SWAP(n)  bswap_32 (n)
+#else
+# define SWAP(n) (n)
+#endif
+
+/* This array contains the bytes used to pad the buffer to the next
+   64-byte boundary.  (RFC 1321, 3.1: Step 1)  */
+static const unsigned char fillbuf[64] = { 0x80, 0 /* , 0, 0, ...  */ };
+
+
+/* Initialize structure containing state of computation.
+   (RFC 1321, 3.3: Step 3)  */
+void
+md5_init_ctx (ctx)
+     struct md5_ctx *ctx;
+{
+  ctx->A = 0x67452301;
+  ctx->B = 0xefcdab89;
+  ctx->C = 0x98badcfe;
+  ctx->D = 0x10325476;
+
+  ctx->total[0] = ctx->total[1] = 0;
+  ctx->buflen = 0;
+}
+
+/* Put result from CTX in first 16 bytes following RESBUF.  The result
+   must be in little endian byte order.
+
+   IMPORTANT: On some systems it is required that RESBUF is correctly
+   aligned for a 32 bits value.  */
+void *
+md5_read_ctx (ctx, resbuf)
+     const struct md5_ctx *ctx;
+     void *resbuf;
+{
+  ((md5_uint32 *) resbuf)[0] = SWAP (ctx->A);
+  ((md5_uint32 *) resbuf)[1] = SWAP (ctx->B);
+  ((md5_uint32 *) resbuf)[2] = SWAP (ctx->C);
+  ((md5_uint32 *) resbuf)[3] = SWAP (ctx->D);
+
+  return resbuf;
+}
+
+/* Process the remaining bytes in the internal buffer and the usual
+   prolog according to the standard and write the result to RESBUF.
+
+   IMPORTANT: On some systems it is required that RESBUF is correctly
+   aligned for a 32 bits value.  */
+void *
+md5_finish_ctx (ctx, resbuf)
+     struct md5_ctx *ctx;
+     void *resbuf;
+{
+  /* Take yet unprocessed bytes into account.  */
+  md5_uint32 bytes = ctx->buflen;
+  size_t pad;
+
+  /* Now count remaining bytes.  */
+  ctx->total[0] += bytes;
+  if (ctx->total[0] < bytes)
+    ++ctx->total[1];
+
+  pad = bytes >= 56 ? 64 + 56 - bytes : 56 - bytes;
+  memcpy (&ctx->buffer[bytes], fillbuf, pad);
+
+  /* Put the 64-bit file length in *bits* at the end of the buffer.  */
+  *(md5_uint32 *) &ctx->buffer[bytes + pad] = SWAP (ctx->total[0] << 3);
+  *(md5_uint32 *) &ctx->buffer[bytes + pad + 4] = SWAP ((ctx->total[1] << 3) |
+                                                       (ctx->total[0] >> 29));
+
+  /* Process last bytes.  */
+  md5_process_block (ctx->buffer, bytes + pad + 8, ctx);
+
+  return md5_read_ctx (ctx, resbuf);
+}
+
+/* Compute MD5 message digest for LEN bytes beginning at BUFFER.  The
+   result is always in little endian byte order, so that a byte-wise
+   output yields to the wanted ASCII representation of the message
+   digest.  */
+void *
+md5_buffer (buffer, len, resblock)
+     const char *buffer;
+     size_t len;
+     void *resblock;
+{
+  struct md5_ctx ctx;
+
+  /* Initialize the computation context.  */
+  md5_init_ctx (&ctx);
+
+  /* Process whole buffer but last len % 64 bytes.  */
+  md5_process_bytes (buffer, len, &ctx);
+
+  /* Put result in desired memory area.  */
+  return md5_finish_ctx (&ctx, resblock);
+}
+
+
+void
+md5_process_bytes (buffer, len, ctx)
+     const void *buffer;
+     size_t len;
+     struct md5_ctx *ctx;
+{
+  /* When we already have some bits in our internal buffer concatenate
+     both inputs first.  */
+  if (ctx->buflen != 0)
+    {
+      size_t left_over = ctx->buflen;
+      size_t add = 128 - left_over > len ? len : 128 - left_over;
+
+      memcpy (&ctx->buffer[left_over], buffer, add);
+      ctx->buflen += add;
+
+      if (ctx->buflen > 64)
+       {
+         md5_process_block (ctx->buffer, ctx->buflen & ~63, ctx);
+
+         ctx->buflen &= 63;
+         /* The regions in the following copy operation cannot overlap.  */
+         memcpy (ctx->buffer, &ctx->buffer[(left_over + add) & ~63],
+                 ctx->buflen);
+       }
+
+      buffer = (const char *) buffer + add;
+      len -= add;
+    }
+
+  /* Process available complete blocks.  */
+  if (len >= 64)
+    {
+#define UNALIGNED_P(p) (((md5_uintptr) p) % __alignof__ (md5_uint32) != 0)
+      if (UNALIGNED_P (buffer))
+       while (len > 64)
+         {
+           md5_process_block (memcpy (ctx->buffer, buffer, 64), 64, ctx);
+           buffer = (const char *) buffer + 64;
+           len -= 64;
+         }
+      else
+       {
+         md5_process_block (buffer, len & ~63, ctx);
+         buffer = (const char *) buffer + (len & ~63);
+         len &= 63;
+       }
+    }
+
+  /* Move remaining bytes in internal buffer.  */
+  if (len > 0)
+    {
+      size_t left_over = ctx->buflen;
+
+      memcpy (&ctx->buffer[left_over], buffer, len);
+      left_over += len;
+      if (left_over >= 64)
+       {
+         md5_process_block (ctx->buffer, 64, ctx);
+         left_over -= 64;
+         memcpy (ctx->buffer, &ctx->buffer[64], left_over);
+       }
+      ctx->buflen = left_over;
+    }
+}
+
+
+/* These are the four functions used in the four steps of the MD5 algorithm
+   and defined in the RFC 1321.  The first function is a little bit optimized
+   (as found in Colin Plumbs public domain implementation).  */
+/* #define FF(b, c, d) ((b & c) | (~b & d)) */
+#define FF(b, c, d) (d ^ (b & (c ^ d)))
+#define FG(b, c, d) FF (d, b, c)
+#define FH(b, c, d) (b ^ c ^ d)
+#define FI(b, c, d) (c ^ (b | ~d))
+
+/* Process LEN bytes of BUFFER, accumulating context into CTX.
+   It is assumed that LEN % 64 == 0.  */
+
+void
+md5_process_block (buffer, len, ctx)
+     const void *buffer;
+     size_t len;
+     struct md5_ctx *ctx;
+{
+  md5_uint32 correct_words[16];
+  const md5_uint32 *words = buffer;
+  size_t nwords = len / sizeof (md5_uint32);
+  const md5_uint32 *endp = words + nwords;
+  md5_uint32 A = ctx->A;
+  md5_uint32 B = ctx->B;
+  md5_uint32 C = ctx->C;
+  md5_uint32 D = ctx->D;
+
+  /* First increment the byte count.  RFC 1321 specifies the possible
+     length of the file up to 2^64 bits.  Here we only compute the
+     number of bytes.  Do a double word increment.  */
+  ctx->total[0] += len;
+  if (ctx->total[0] < len)
+    ++ctx->total[1];
+
+  /* Process all bytes in the buffer with 64 bytes in each round of
+     the loop.  */
+  while (words < endp)
+    {
+      md5_uint32 *cwp = correct_words;
+      md5_uint32 A_save = A;
+      md5_uint32 B_save = B;
+      md5_uint32 C_save = C;
+      md5_uint32 D_save = D;
+
+      /* First round: using the given function, the context and a constant
+        the next context is computed.  Because the algorithms processing
+        unit is a 32-bit word and it is determined to work on words in
+        little endian byte order we perhaps have to change the byte order
+        before the computation.  To reduce the work for the next steps
+        we store the swapped words in the array CORRECT_WORDS.  */
+
+#define OP(a, b, c, d, s, T)                                           \
+      do                                                               \
+       {                                                               \
+         a += FF (b, c, d) + (*cwp++ = SWAP (*words)) + T;             \
+         ++words;                                                      \
+         a = rol (a, s);                                               \
+         a += b;                                                       \
+       }                                                               \
+      while (0)
+
+      /* Before we start, one word to the strange constants.
+        They are defined in RFC 1321 as
+
+        T[i] = (int) (4294967296.0 * fabs (sin (i))), i=1..64, or
+        perl -e 'foreach(1..64){printf "0x%08x\n", int (4294967296 * abs (sin $_))}'
+       */
+
+      /* Round 1.  */
+      OP (A, B, C, D,  7, 0xd76aa478);
+      OP (D, A, B, C, 12, 0xe8c7b756);
+      OP (C, D, A, B, 17, 0x242070db);
+      OP (B, C, D, A, 22, 0xc1bdceee);
+      OP (A, B, C, D,  7, 0xf57c0faf);
+      OP (D, A, B, C, 12, 0x4787c62a);
+      OP (C, D, A, B, 17, 0xa8304613);
+      OP (B, C, D, A, 22, 0xfd469501);
+      OP (A, B, C, D,  7, 0x698098d8);
+      OP (D, A, B, C, 12, 0x8b44f7af);
+      OP (C, D, A, B, 17, 0xffff5bb1);
+      OP (B, C, D, A, 22, 0x895cd7be);
+      OP (A, B, C, D,  7, 0x6b901122);
+      OP (D, A, B, C, 12, 0xfd987193);
+      OP (C, D, A, B, 17, 0xa679438e);
+      OP (B, C, D, A, 22, 0x49b40821);
+
+      /* For the second to fourth round we have the possibly swapped words
+        in CORRECT_WORDS.  Redefine the macro to take an additional first
+        argument specifying the function to use.  */
+#undef OP
+#define OP(f, a, b, c, d, k, s, T)                                     \
+      do                                                               \
+       {                                                               \
+         a += f (b, c, d) + correct_words[k] + T;                      \
+         a = rol (a, s);                                               \
+         a += b;                                                       \
+       }                                                               \
+      while (0)
+
+      /* Round 2.  */
+      OP (FG, A, B, C, D,  1,  5, 0xf61e2562);
+      OP (FG, D, A, B, C,  6,  9, 0xc040b340);
+      OP (FG, C, D, A, B, 11, 14, 0x265e5a51);
+      OP (FG, B, C, D, A,  0, 20, 0xe9b6c7aa);
+      OP (FG, A, B, C, D,  5,  5, 0xd62f105d);
+      OP (FG, D, A, B, C, 10,  9, 0x02441453);
+      OP (FG, C, D, A, B, 15, 14, 0xd8a1e681);
+      OP (FG, B, C, D, A,  4, 20, 0xe7d3fbc8);
+      OP (FG, A, B, C, D,  9,  5, 0x21e1cde6);
+      OP (FG, D, A, B, C, 14,  9, 0xc33707d6);
+      OP (FG, C, D, A, B,  3, 14, 0xf4d50d87);
+      OP (FG, B, C, D, A,  8, 20, 0x455a14ed);
+      OP (FG, A, B, C, D, 13,  5, 0xa9e3e905);
+      OP (FG, D, A, B, C,  2,  9, 0xfcefa3f8);
+      OP (FG, C, D, A, B,  7, 14, 0x676f02d9);
+      OP (FG, B, C, D, A, 12, 20, 0x8d2a4c8a);
+
+      /* Round 3.  */
+      OP (FH, A, B, C, D,  5,  4, 0xfffa3942);
+      OP (FH, D, A, B, C,  8, 11, 0x8771f681);
+      OP (FH, C, D, A, B, 11, 16, 0x6d9d6122);
+      OP (FH, B, C, D, A, 14, 23, 0xfde5380c);
+      OP (FH, A, B, C, D,  1,  4, 0xa4beea44);
+      OP (FH, D, A, B, C,  4, 11, 0x4bdecfa9);
+      OP (FH, C, D, A, B,  7, 16, 0xf6bb4b60);
+      OP (FH, B, C, D, A, 10, 23, 0xbebfbc70);
+      OP (FH, A, B, C, D, 13,  4, 0x289b7ec6);
+      OP (FH, D, A, B, C,  0, 11, 0xeaa127fa);
+      OP (FH, C, D, A, B,  3, 16, 0xd4ef3085);
+      OP (FH, B, C, D, A,  6, 23, 0x04881d05);
+      OP (FH, A, B, C, D,  9,  4, 0xd9d4d039);
+      OP (FH, D, A, B, C, 12, 11, 0xe6db99e5);
+      OP (FH, C, D, A, B, 15, 16, 0x1fa27cf8);
+      OP (FH, B, C, D, A,  2, 23, 0xc4ac5665);
+
+      /* Round 4.  */
+      OP (FI, A, B, C, D,  0,  6, 0xf4292244);
+      OP (FI, D, A, B, C,  7, 10, 0x432aff97);
+      OP (FI, C, D, A, B, 14, 15, 0xab9423a7);
+      OP (FI, B, C, D, A,  5, 21, 0xfc93a039);
+      OP (FI, A, B, C, D, 12,  6, 0x655b59c3);
+      OP (FI, D, A, B, C,  3, 10, 0x8f0ccc92);
+      OP (FI, C, D, A, B, 10, 15, 0xffeff47d);
+      OP (FI, B, C, D, A,  1, 21, 0x85845dd1);
+      OP (FI, A, B, C, D,  8,  6, 0x6fa87e4f);
+      OP (FI, D, A, B, C, 15, 10, 0xfe2ce6e0);
+      OP (FI, C, D, A, B,  6, 15, 0xa3014314);
+      OP (FI, B, C, D, A, 13, 21, 0x4e0811a1);
+      OP (FI, A, B, C, D,  4,  6, 0xf7537e82);
+      OP (FI, D, A, B, C, 11, 10, 0xbd3af235);
+      OP (FI, C, D, A, B,  2, 15, 0x2ad7d2bb);
+      OP (FI, B, C, D, A,  9, 21, 0xeb86d391);
+
+      /* Add the starting values of the context.  */
+      A += A_save;
+      B += B_save;
+      C += C_save;
+      D += D_save;
+    }
+
+  /* Put checksum in context given as argument.  */
+  ctx->A = A;
+  ctx->B = B;
+  ctx->C = C;
+  ctx->D = D;
+}
diff --git a/src/md5.h b/src/md5.h
new file mode 100644 (file)
index 0000000..55f6195
--- /dev/null
+++ b/src/md5.h
@@ -0,0 +1,105 @@
+/* md5.h - Declaration of functions and data types used for MD5 sum
+   computing library functions.
+   Copyright (C) 1995, 1996, 1999 Free Software Foundation, Inc.
+   NOTE: The canonical source of this file is maintained with the GNU C
+   Library.  Bugs can be reported to bug-glibc@prep.ai.mit.edu.
+
+   This program is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the
+   Free Software Foundation; either version 2, or (at your option) any
+   later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifndef _MD5_H
+#define _MD5_H 1
+
+#include <limits.h>
+#include <stdint.h>
+typedef uint32_t md5_uint32;
+typedef uintptr_t md5_uintptr;
+
+/* Structure to save state of computation between the single steps.  */
+struct md5_ctx
+{
+  md5_uint32 A;
+  md5_uint32 B;
+  md5_uint32 C;
+  md5_uint32 D;
+
+  md5_uint32 total[2];
+  md5_uint32 buflen;
+  char buffer[128];
+};
+
+/*
+ * The following three functions are build up the low level used in
+ * the function `md5_buffer'.
+ */
+
+/* Initialize structure containing state of computation.
+   (RFC 1321, 3.3: Step 3)  */
+extern void md5_init_ctx (struct md5_ctx *ctx);
+
+/* Starting with the result of former calls of this function (or the
+   initialization function update the context for the next LEN bytes
+   starting at BUFFER.
+   It is necessary that LEN is a multiple of 64!!! */
+extern void md5_process_block __P ((const void *buffer, size_t len,
+                                   struct md5_ctx *ctx));
+
+/* Starting with the result of former calls of this function (or the
+   initialization function update the context for the next LEN bytes
+   starting at BUFFER.
+   It is NOT required that LEN is a multiple of 64.  */
+extern void md5_process_bytes __P ((const void *buffer, size_t len,
+                                   struct md5_ctx *ctx));
+
+/* Process the remaining bytes in the buffer and put result from CTX
+   in first 16 bytes following RESBUF.  The result is always in little
+   endian byte order, so that a byte-wise output yields to the wanted
+   ASCII representation of the message digest.
+
+   IMPORTANT: On some systems it is required that RESBUF be correctly
+   aligned for a 32 bits value.  */
+extern void *md5_finish_ctx (struct md5_ctx *ctx, void *resbuf);
+
+
+/* Put result from CTX in first 16 bytes following RESBUF.  The result is
+   always in little endian byte order, so that a byte-wise output yields
+   to the wanted ASCII representation of the message digest.
+
+   IMPORTANT: On some systems it is required that RESBUF is correctly
+   aligned for a 32 bits value.  */
+extern void *md5_read_ctx (const struct md5_ctx *ctx, void *resbuf);
+
+
+/* Compute MD5 message digest for LEN bytes beginning at BUFFER.  The
+   result is always in little endian byte order, so that a byte-wise
+   output yields to the wanted ASCII representation of the message
+   digest.  */
+extern void *md5_buffer (const char *buffer, size_t len, void *resblock);
+
+/* The following is from gnupg-1.0.2's cipher/bithelp.h.  */
+/* Rotate a 32 bit integer by n bytes */
+#if defined __GNUC__ && defined __i386__
+static inline md5_uint32
+rol(md5_uint32 x, int n)
+{
+  __asm__("roll %%cl,%0"
+         :"=r" (x)
+         :"0" (x),"c" (n));
+  return x;
+}
+#else
+# define rol(x,n) ( ((x) << (n)) | ((x) >> (32-(n))) )
+#endif
+
+#endif
diff --git a/src/mdebug.c b/src/mdebug.c
new file mode 100644 (file)
index 0000000..4c22d2f
--- /dev/null
@@ -0,0 +1,692 @@
+/* Copyright (C) 2001 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <byteswap.h>
+#include <endian.h>
+#include <error.h>
+#include <stddef.h>
+
+#include "prelink.h"
+
+#define F8(x) unsigned char x[1];
+#define F16(x) unsigned char x[2];
+#define F24(x) unsigned char x[3];
+#define F32(x) unsigned char x[4];
+#define F64(x) unsigned char x[8];
+
+typedef struct
+{
+  F16(magic)
+  F16(vstamp)
+  F32(ilineMax)
+  F32(cbLine)
+  F32(cbLineOffset)
+  F32(idnMax)
+  F32(cbDnOffset)
+  F32(ipdMax)
+  F32(cbPdOffset)
+  F32(isymMax)
+  F32(cbSymOffset)
+  F32(ioptMax)
+  F32(cbOptOffset)
+  F32(iauxMax)
+  F32(cbAuxOffset)
+  F32(issMax)
+  F32(cbSsOffset)
+  F32(issExtMax)
+  F32(cbSsExtOffset)
+  F32(ifdMax)
+  F32(cbFdOffset)
+  F32(crfd)
+  F32(cbRfdOffset)
+  F32(iextMax)
+  F32(cbExtOffset)
+} mdebug_hdr_32;
+
+typedef struct
+{
+  F16(magic)
+  F16(vstamp)
+  F32(ilineMax)
+  F32(idnMax)
+  F32(ipdMax)
+  F32(isymMax)
+  F32(ioptMax)
+  F32(iauxMax)
+  F32(issMax)
+  F32(issExtMax)
+  F32(ifdMax)
+  F32(crfd)
+  F32(iextMax)
+  F64(cbLine)
+  F64(cbLineOffset)
+  F64(cbDnOffset)
+  F64(cbPdOffset)
+  F64(cbSymOffset)
+  F64(cbOptOffset)
+  F64(cbAuxOffset)
+  F64(cbSsOffset)
+  F64(cbSsExtOffset)
+  F64(cbFdOffset)
+  F64(cbRfdOffset)
+  F64(cbExtOffset)
+} mdebug_hdr_64;
+
+typedef struct
+{
+  F32(adr)
+  F32(rss)
+  F32(issBase)
+  F32(cbSs)
+  F32(isymBase)
+  F32(csym)
+  F32(ilineBase)
+  F32(cline)
+  F32(ioptBase)
+  F32(copt)
+  F16(ipdFirst)
+  F16(cpd)
+  F32(iauxBase)
+  F32(caux)
+  F32(rfdBase)
+  F32(crfd)
+  F8(bits1)
+  F24(bits2)
+  F32(cbLineOffset)
+  F32(cbLine)
+} mdebug_fdr_32;
+
+typedef struct
+{
+  F64(adr)
+  F64(cbLineOffset)
+  F64(cbLine)
+  F64(cbSs)
+  F32(rss)
+  F32(issBase)
+  F32(isymBase)
+  F32(csym)
+  F32(ilineBase)
+  F32(cline)
+  F32(ioptBase)
+  F32(copt)
+  F32(ipdFirst)
+  F32(cpd)
+  F32(iauxBase)
+  F32(caux)
+  F32(rfdBase)
+  F32(crfd)
+  F8(bits1)
+  F24(bits2)
+  F32(padding)
+} mdebug_fdr_64;
+
+typedef struct
+{
+  F32(iss)
+  F32(value)
+  F8(bits1)
+  F8(bits2)
+  F8(bits3)
+  F8(bits4)
+} mdebug_sym_32;
+
+typedef struct
+{
+  F64(value)
+  F32(iss)
+  F8(bits1)
+  F8(bits2)
+  F8(bits3)
+  F8(bits4)
+} mdebug_sym_64;
+
+typedef struct
+{
+  F8(bits1)
+  F8(bits2)
+  F16(fd)
+  mdebug_sym_32 asym;
+} mdebug_ext_32;
+
+typedef struct
+{
+  mdebug_sym_64 asym;
+  F8(bits1)
+  F24(bits2)
+  F32(fd)
+} mdebug_ext_64;
+
+typedef struct
+{
+  F32(adr)
+  F32(isym)
+  F32(iline)
+  F32(regmask)
+  F32(regoffset)
+  F32(iopt)
+  F32(fregmask)
+  F32(fregoffset)
+  F32(frameoffset)
+  F16(framereg)
+  F16(pcreg)
+  F32(lnLow)
+  F32(lnHigh)
+  F32(cbLineOffset)
+} mdebug_pdr_32;
+
+typedef struct
+{
+  F64(adr)
+  F64(cbLineOffset)
+  F32(isym)
+  F32(iline)
+  F32(regmask)
+  F32(regoffset)
+  F32(iopt)
+  F32(fregmask)
+  F32(fregoffset)
+  F32(frameoffset)
+  F32(lnLow)
+  F32(lnHigh)
+  F8(gp_prologue)
+  F8(bits1)
+  F8(bits2)
+  F8(localoff)
+  F16(framereg)
+  F16(pcreg)
+} mdebug_pdr_64;
+
+typedef struct
+{
+  F32(bits);
+} mdebug_rndx;
+
+typedef struct
+{
+  F8(bits1)
+  F8(bits2)
+  F8(bits3)
+  F8(bits4)
+  mdebug_rndx rndx;
+  F32(offset)
+} mdebug_opt;
+
+typedef struct
+{
+  F32(rfd)
+  F32(index)
+} mdebug_dnr;
+
+typedef struct
+{
+  F32(rfd)
+} mdebug_rfd;
+
+#define scNil          0
+#define scText         1
+#define scData         2
+#define scBss          3
+#define scRegister     4
+#define scAbs          5
+#define scUndefined    6
+#define scCdbLocal     7
+#define scBits         8
+#define scCdbSystem    9
+#define scDbx          9
+#define scRegImage     10
+#define scInfo         11
+#define scUserStruct   12
+#define scSData                13
+#define scSBss         14
+#define scRData                15
+#define scVar          16
+#define scCommon       17
+#define scSCommon      18
+#define scVarRegister  19
+#define scVariant      20
+#define scSUndefined   21
+#define scInit         22
+#define scBasedVar     23
+#define scXData                24
+#define scPData                25
+#define scFini         26
+#define scRConst       27
+#define scMax          32
+
+#define stNil          0
+#define stGlobal       1
+#define stStatic       2
+#define stParam                3
+#define stLocal                4
+#define stLabel                5
+#define stProc         6
+#define stBlock                7
+#define stEnd          8
+#define stMember       9
+#define stTypedef      10
+#define stFile         11
+#define stRegReloc     12
+#define stForward      13
+#define stStaticProc   14
+#define stConstant     15
+#define stStaParam     16
+#define stStruct       26
+#define stUnion                27
+#define stEnum         28
+#define stIndirect     34
+#define stMax          64
+
+struct mdebug
+{
+  uint32_t (*read_32) (char *);
+  GElf_Addr (*read_ptr) (char *);
+  void (*write_ptr) (char *, GElf_Addr);
+  void (*adjust_sym) (struct mdebug *, unsigned char *, GElf_Addr, GElf_Addr);
+  unsigned char *buf;
+  DSO *dso;
+};
+
+static uint32_t
+read_native_32 (char *p)
+{
+  return *(uint32_t *)p;
+}
+
+static uint32_t
+read_swap_32 (char *p)
+{
+  return bswap_32 (*(uint32_t *)p);
+}
+
+static GElf_Addr
+read_native_ptr32 (char *p)
+{
+  return *(uint32_t *)p;
+}
+
+static GElf_Addr
+read_swap_ptr32 (char *p)
+{
+  return bswap_32 (*(uint32_t *)p);
+}
+
+static void
+write_native_ptr32 (char *p, GElf_Addr v)
+{
+  *(uint32_t *)p = v;
+}
+
+static void
+write_swap_ptr32 (char *p, GElf_Addr v)
+{
+  *(uint32_t *)p = bswap_32 (v);
+}
+
+static GElf_Addr
+read_native_ptr64 (char *p)
+{
+  return *(uint64_t *)p;
+}
+
+static GElf_Addr
+read_swap_ptr64 (char *p)
+{
+  return bswap_64 (*(uint64_t *)p);
+}
+
+static void
+write_native_ptr64 (char *p, GElf_Addr v)
+{
+  *(uint64_t *)p = v;
+}
+
+static void
+write_swap_ptr64 (char *p, GElf_Addr v)
+{
+  *(uint64_t *)p = bswap_64 (v);
+}
+
+static inline int
+mdebug_sym_relocate (unsigned int st, unsigned int sc)
+{
+  switch (sc)
+    {
+    case scData:
+    case scBss:
+    case scAbs:
+    case scSData:
+    case scSBss:
+    case scRData:
+    case scXData:
+    case scPData:
+      return 1;
+    case scText:
+    case scInit:
+    case scFini:
+    case scRConst:
+      if (st != stBlock && st != stEnd && st != stFile)
+       return 1;
+    default:
+      return 0;
+    }
+}
+
+static void
+adjust_mdebug_sym_le32 (struct mdebug *mdebug, mdebug_sym_32 *symptr,
+                       GElf_Addr start, GElf_Addr adjust)
+{
+  unsigned int st, sc;
+  GElf_Addr addr;
+
+  st = symptr->bits1[0] & 0x3f;
+  sc = (symptr->bits1[0] >> 6) | ((symptr->bits2[0] & 7) << 2);
+  if (mdebug_sym_relocate (st, sc))
+    {
+      addr = mdebug->read_ptr (symptr->value);
+      if (addr >= start && (addr || sc != scAbs))
+       mdebug->write_ptr (symptr->value, addr + adjust);
+    }
+}
+
+static void
+adjust_mdebug_sym_be32 (struct mdebug *mdebug, mdebug_sym_32 *symptr,
+                       GElf_Addr start, GElf_Addr adjust)
+{
+  unsigned int st, sc;
+  GElf_Addr addr;
+
+  st = symptr->bits1[0] >> 2;
+  sc = ((symptr->bits1[0] & 3) << 3) | (symptr->bits2[0] >> 5);
+  if (mdebug_sym_relocate (st, sc))
+    {
+      addr = mdebug->read_ptr (symptr->value);
+      if (addr >= start && (addr || sc != scAbs))
+       mdebug->write_ptr (symptr->value, addr + adjust);
+    }
+}
+
+static void
+adjust_mdebug_sym_le64 (struct mdebug *mdebug, mdebug_sym_64 *symptr,
+                       GElf_Addr start, GElf_Addr adjust)
+{
+  unsigned int st, sc;
+  GElf_Addr addr;
+
+  st = symptr->bits1[0] & 0x3f;
+  sc = (symptr->bits1[0] >> 6) | ((symptr->bits2[0] & 7) << 2);
+  if (mdebug_sym_relocate (st, sc))
+    {
+      addr = mdebug->read_ptr (symptr->value);
+      if (addr >= start && (addr || sc != scAbs))
+       mdebug->write_ptr (symptr->value, addr + adjust);
+    }
+}
+
+static void
+adjust_mdebug_sym_be64 (struct mdebug *mdebug, mdebug_sym_64 *symptr,
+                       GElf_Addr start, GElf_Addr adjust)
+{
+  unsigned int st, sc;
+  GElf_Addr addr;
+
+  st = symptr->bits1[0] >> 2;
+  sc = ((symptr->bits1[0] & 3) << 3) | (symptr->bits2[0] >> 5);
+  if (mdebug_sym_relocate (st, sc))
+    {
+      addr = mdebug->read_ptr (symptr->value);
+      if (addr >= start && (addr || sc != scAbs))
+       mdebug->write_ptr (symptr->value, addr + adjust);
+    }
+}
+
+#define SIZEOf(x) \
+  (dso->arch->class == ELFCLASS32 ? sizeof (x##_32) : sizeof (x##_64))
+#define SIZEOF(x) SIZEOf(x)
+#define OFFSETOf(x,y) \
+  (dso->arch->class == ELFCLASS32 ? offsetof (x##_32, y) : offsetof (x##_64, y))
+#define OFFSETOF(x,y) OFFSETOf(x,y)
+
+static int
+start_mdebug (DSO *dso, int n, struct mdebug *mdebug)
+{
+  Elf_Data *data = NULL;
+  Elf_Scn *scn = dso->scn[n];
+
+  data = elf_getdata (scn, NULL);
+  mdebug->buf = data->d_buf;
+  mdebug->dso = dso;
+  assert (data != NULL && data->d_buf != NULL);
+  assert (elf_getdata (scn, data) == NULL);
+  assert (data->d_off == 0 && data->d_size == dso->shdr[n].sh_size);
+  if (dso->mdebug_orig_offset == 0)
+    dso->mdebug_orig_offset = dso->shdr[n].sh_offset;
+#if __BYTE_ORDER == __BIG_ENDIAN
+  if (dso->ehdr.e_ident[EI_DATA] == ELFDATA2MSB)
+#elif __BYTE_ORDER == __LITTLE_ENDIAN
+  if (dso->ehdr.e_ident[EI_DATA] == ELFDATA2LSB)
+#else
+# error Not supported host endianess
+#endif
+    {
+      mdebug->read_32 = read_native_32;
+      if (dso->arch->class == ELFCLASS32)
+       {
+         mdebug->read_ptr = read_native_ptr32;
+         mdebug->write_ptr = write_native_ptr32;
+       }
+      else
+       {
+         mdebug->read_ptr = read_native_ptr64;
+         mdebug->write_ptr = write_native_ptr64;
+       }
+    }
+#if __BYTE_ORDER == __BIG_ENDIAN
+  else if (dso->ehdr.e_ident[EI_DATA] == ELFDATA2LSB)
+#elif __BYTE_ORDER == __LITTLE_ENDIAN
+  else if (dso->ehdr.e_ident[EI_DATA] == ELFDATA2MSB)
+#endif
+    {
+      mdebug->read_32 = read_swap_32;
+      if (dso->arch->class == ELFCLASS32)
+       {
+         mdebug->read_ptr = read_swap_ptr32;
+         mdebug->write_ptr = write_swap_ptr32;
+       }
+      else
+       {
+         mdebug->read_ptr = read_swap_ptr64;
+         mdebug->write_ptr = write_swap_ptr64;
+       }
+    }
+  else
+    {
+      error (0, 0, "%s: Wrong ELF data enconding", dso->filename);
+      return 1;
+    }
+  if (dso->ehdr.e_ident[EI_DATA] == ELFDATA2LSB)
+    {
+      if (dso->arch->class == ELFCLASS32)
+       mdebug->adjust_sym = (void *) adjust_mdebug_sym_le32;
+      else
+       mdebug->adjust_sym = (void *) adjust_mdebug_sym_le64;
+    }
+  else
+    {
+      if (dso->arch->class == ELFCLASS32)
+       mdebug->adjust_sym = (void *) adjust_mdebug_sym_be32;
+      else
+       mdebug->adjust_sym = (void *) adjust_mdebug_sym_be64;
+    }
+
+  if (dso->shdr[n].sh_size < SIZEOF (mdebug_hdr))
+    {
+      error (0, 0, "%s: .mdebug section too small", dso->filename);
+      return 1;
+    }
+  return 0;
+}
+
+int
+adjust_mdebug (DSO *dso, int n, GElf_Addr start, GElf_Addr adjust)
+{
+  struct mdebug mdebug;
+  struct { GElf_Off offset; GElf_Off size; size_t entsize; } regions [11];
+  int i = 0;
+  unsigned char *symptr, *endptr;
+
+  if (start_mdebug (dso, n, &mdebug))
+    return 1;
+
+#define READ(x, y, longsize, sz) \
+do {                                                                   \
+  unsigned char *tmp;                                                  \
+  tmp = mdebug.buf + OFFSETOF (mdebug_hdr, x);                         \
+  regions[i].offset = mdebug.read_ptr (tmp);                           \
+  tmp = mdebug.buf + OFFSETOF (mdebug_hdr, y);                         \
+  if (longsize)                                                                \
+    regions[i].size = mdebug.read_ptr (tmp);                           \
+  else                                                                 \
+    regions[i].size = mdebug.read_32 (tmp);                            \
+  regions[i].entsize = sz;                                             \
+  ++i;                                                                 \
+} while (0)
+
+  READ (cbLineOffset, cbLine, 1, sizeof (char));
+  READ (cbDnOffset, idnMax, 0, sizeof (mdebug_dnr));
+  READ (cbPdOffset, ipdMax, 0, SIZEOF (mdebug_pdr));
+  READ (cbSymOffset, isymMax, 0, SIZEOF (mdebug_sym));
+  READ (cbOptOffset, ioptMax, 0, sizeof (mdebug_opt));
+  READ (cbAuxOffset, iauxMax, 0, 4 * sizeof (char));
+  READ (cbSsOffset, issMax, 0, sizeof (char));
+  READ (cbSsExtOffset, issExtMax, 0, sizeof (char));
+  READ (cbFdOffset, ifdMax, 0, SIZEOF (mdebug_fdr));
+  READ (cbRfdOffset, crfd, 0, sizeof (mdebug_rfd));
+  READ (cbExtOffset, iextMax, 0, SIZEOF (mdebug_ext));
+
+#undef READ
+
+  for (i = 0; i < 11; ++i)
+    {
+      if (regions[i].offset)
+       regions[i].offset -= dso->mdebug_orig_offset;
+      regions[i].size *= regions[i].entsize;
+      if (regions[i].offset >= dso->shdr[n].sh_size
+         || regions[i].offset + regions[i].size > dso->shdr[n].sh_size)
+       {
+         error (0, 0, "%s: File offsets in .mdebug header point outside of .mdebug section",
+                dso->filename);
+         return 1;
+       }
+    }
+
+  /* Adjust symbols.  */
+  if (regions[3].offset)
+    for (symptr = mdebug.buf + regions[3].offset,
+        endptr = symptr + regions[3].size;
+        symptr < endptr;
+        symptr += regions[3].entsize)
+      mdebug.adjust_sym (&mdebug, symptr, start, adjust);
+
+  /* Adjust file descriptor's addresses.  */
+  if (regions[8].offset)
+    for (symptr = mdebug.buf + regions[8].offset,
+        endptr = symptr + regions[8].size;
+        symptr < endptr;
+        symptr += regions[8].entsize)
+      {
+       GElf_Addr addr;
+
+       assert (offsetof (mdebug_fdr_32, adr) == 0);
+       assert (offsetof (mdebug_fdr_64, adr) == 0);
+       addr = mdebug.read_ptr (symptr);
+       if (addr >= start)
+         mdebug.write_ptr (symptr, addr + adjust);
+      }
+
+  /* Adjust extended symbols.  */
+  if (regions[10].offset)
+    for (symptr = mdebug.buf + regions[10].offset
+                 + OFFSETOF (mdebug_ext, asym),
+        endptr = symptr + regions[10].size;
+        symptr < endptr;
+        symptr += regions[10].entsize)
+      mdebug.adjust_sym (&mdebug, symptr, start, adjust);
+
+  return 0;
+}
+
+int
+finalize_mdebug (DSO *dso)
+{
+  int i;
+  struct mdebug mdebug;
+  GElf_Addr adj;
+
+  for (i = 1; i < dso->ehdr.e_shnum; i++)
+    if ((dso->arch->machine == EM_ALPHA
+        && dso->shdr[i].sh_type == SHT_ALPHA_DEBUG)
+       || (dso->arch->machine == EM_MIPS
+           && dso->shdr[i].sh_type == SHT_MIPS_DEBUG))
+      break;
+
+  assert (i < dso->ehdr.e_shnum);
+
+  /* If .mdebug's file position did not change, there is nothing to do.  */
+  adj = dso->shdr[i].sh_offset - dso->mdebug_orig_offset;
+  if (! adj)
+    return 0;
+
+  if (start_mdebug (dso, i, &mdebug))
+    return 1;
+
+#define ADJUST(x) \
+do {                                                                   \
+  unsigned char *tmp;                                                  \
+  GElf_Addr val;                                                       \
+  tmp = mdebug.buf + OFFSETOF (mdebug_hdr, x);                         \
+  val = mdebug.read_ptr (tmp);                                         \
+  if (! val)                                                           \
+    break;                                                             \
+  val += adj;                                                          \
+  if (val < dso->shdr[i].sh_offset                                     \
+      || val >= dso->shdr[i].sh_offset + dso->shdr[i].sh_size)         \
+    {                                                                  \
+      error (0, 0, "%s: File offsets in .mdebug header point outside of .mdebug section", \
+            dso->filename);                                            \
+      return 1;                                                                \
+    }                                                                  \
+  mdebug.write_ptr (tmp, val);                                         \
+} while (0)
+
+  ADJUST (cbLineOffset);
+  ADJUST (cbDnOffset);
+  ADJUST (cbPdOffset);
+  ADJUST (cbSymOffset);
+  ADJUST (cbOptOffset);
+  ADJUST (cbAuxOffset);
+  ADJUST (cbSsOffset);
+  ADJUST (cbSsExtOffset);
+  ADJUST (cbFdOffset);
+  ADJUST (cbRfdOffset);
+  ADJUST (cbExtOffset);
+
+#undef ADJUST
+  return 0;
+}
diff --git a/src/prelink.c b/src/prelink.c
new file mode 100644 (file)
index 0000000..0d113b7
--- /dev/null
@@ -0,0 +1,992 @@
+/* Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <endian.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include "prelink.h"
+#include "reloc.h"
+
+static GElf_Addr
+resolve_ldso (struct prelink_info *info, GElf_Word r_sym,
+             int reloc_type __attribute__((unused)))
+{
+  /* Dynamic linker does not depend on any other library,
+     all symbols resolve to themselves with the exception
+     of SHN_UNDEF symbols which resolve to 0.  */
+  if (info->symtab[r_sym].st_shndx == SHN_UNDEF)
+    {
+      info->resolveent = NULL;
+      info->resolvetls = NULL;
+      return 0;
+    }
+  else
+    {
+      /* As the dynamic linker is relocated first,
+        l_addr will be 0.  */
+      info->resolveent = info->ent;
+      info->resolvetls = NULL;
+      return 0 + info->symtab[r_sym].st_value;
+    }
+}
+
+static GElf_Addr
+resolve_dso (struct prelink_info *info, GElf_Word r_sym,
+            int reloc_type)
+{
+  struct prelink_symbol *s;
+  int reloc_class = info->dso->arch->reloc_class (reloc_type);
+
+  for (s = & info->symbols[r_sym]; s; s = s->next)
+    if (s->reloc_class == reloc_class)
+      break;
+
+  info->resolveent = NULL;
+  info->resolvetls = NULL;
+
+  if (s == NULL || s->u.ent == NULL)
+    return 0;
+
+  if (reloc_class == RTYPE_CLASS_TLS)
+    {
+      info->resolvetls = s->u.tls;
+      return s->value;
+    }
+
+  info->resolveent = s->u.ent;
+  return s->u.ent->base + s->value;
+}
+
+static int
+prelink_rel (DSO *dso, int n, struct prelink_info *info)
+{
+  Elf_Data *data = NULL;
+  Elf_Scn *scn = dso->scn[n];
+  GElf_Rel rel;
+  int sec;
+
+  while ((data = elf_getdata (scn, data)) != NULL)
+    {
+      int ndx, maxndx;
+      GElf_Addr addr = dso->shdr[n].sh_addr + data->d_off;
+
+      maxndx = data->d_size / dso->shdr[n].sh_entsize;
+      for (ndx = 0; ndx < maxndx;
+          ++ndx, addr += dso->shdr[n].sh_entsize)
+       {
+         gelfx_getrel (dso->elf, data, ndx, &rel);
+         sec = addr_to_sec (dso, rel.r_offset);
+         if (sec == -1)
+           continue;
+
+         switch (dso->arch->prelink_rel (info, &rel, addr))
+           {
+           case 2:
+             gelfx_update_rel (dso->elf, data, ndx, &rel);
+             break;
+           case 0:
+             break;
+           default:
+             return 1;
+           }
+       }
+    }
+  return 0;
+}
+
+static int
+prelink_rela (DSO *dso, int n, struct prelink_info *info)
+{
+  Elf_Data *data = NULL;
+  Elf_Scn *scn = dso->scn[n];
+  GElf_Rela rela;
+  int sec;
+
+  while ((data = elf_getdata (scn, data)) != NULL)
+    {
+      int ndx, maxndx;
+      GElf_Addr addr = dso->shdr[n].sh_addr + data->d_off;
+
+      maxndx = data->d_size / dso->shdr[n].sh_entsize;
+      for (ndx = 0; ndx < maxndx;
+          ++ndx, addr += dso->shdr[n].sh_entsize)
+       {
+         gelfx_getrela (dso->elf, data, ndx, &rela);
+         sec = addr_to_sec (dso, rela.r_offset);
+         if (sec == -1)
+           continue;
+
+         switch (dso->arch->prelink_rela (info, &rela, addr))
+           {
+           case 2:
+             gelfx_update_rela (dso->elf, data, ndx, &rela);
+             break;
+           case 0:
+             break;
+           default:
+             return 1;
+           }
+       }
+    }
+  return 0;
+}
+
+int
+prelink_prepare (DSO *dso)
+{
+  struct reloc_info rinfo;
+  int liblist = 0, libstr = 0, newlibstr = 0, undo = 0, newundo = 0;
+  int i;
+
+  for (i = 1; i < dso->ehdr.e_shnum; ++i)
+    {
+      const char *name
+       = strptr (dso, dso->ehdr.e_shstrndx, dso->shdr[i].sh_name);
+      if (! strcmp (name, ".gnu.liblist"))
+       liblist = i;
+      else if (! strcmp (name, ".gnu.libstr"))
+       libstr = i;
+      else if (! strcmp (name, ".gnu.prelink_undo"))
+       undo = i;
+    }
+
+  if (undo == 0)
+    {
+      Elf32_Shdr *shdr32;
+      Elf64_Shdr *shdr64;
+      Elf_Data src, dst;
+
+      dso->undo.d_size = gelf_fsize (dso->elf, ELF_T_EHDR, 1, EV_CURRENT)
+                        + gelf_fsize (dso->elf, ELF_T_PHDR,
+                                      dso->ehdr.e_phnum, EV_CURRENT)
+                        + gelf_fsize (dso->elf, ELF_T_SHDR,
+                                      dso->ehdr.e_shnum - 1, EV_CURRENT);
+      dso->undo.d_buf = malloc (dso->undo.d_size);
+      if (dso->undo.d_buf == NULL)
+       {
+         error (0, ENOMEM, "%s: Could not create .gnu.prelink_undo section",
+                dso->filename);
+         return 1;
+       }
+      dso->undo.d_type = ELF_T_BYTE;
+      dso->undo.d_off = 0;
+      dso->undo.d_align = gelf_fsize (dso->elf, ELF_T_ADDR, 1, EV_CURRENT);
+      dso->undo.d_version = EV_CURRENT;
+      src = dso->undo;
+      src.d_type = ELF_T_EHDR;
+      src.d_size = gelf_fsize (dso->elf, ELF_T_EHDR, 1, EV_CURRENT);
+      dst = src;
+      switch (gelf_getclass (dso->elf))
+       {
+       case ELFCLASS32:
+         src.d_buf = elf32_getehdr (dso->elf);
+         if (elf32_xlatetof (&dst, &src, dso->ehdr.e_ident[EI_DATA]) == NULL)
+           {
+             error (0, 0, "%s: Failed to create .gnu.prelink_undo section",
+                    dso->filename);
+             return 1;
+           }
+         break;
+       case ELFCLASS64:
+         src.d_buf = elf64_getehdr (dso->elf);
+         if (elf64_xlatetof (&dst, &src, dso->ehdr.e_ident[EI_DATA]) == NULL)
+           {
+             error (0, 0, "%s: Failed to create .gnu.prelink_undo section",
+                    dso->filename);
+             return 1;
+           }
+         break;
+       default:
+         return 1;
+       }
+      src.d_buf = dst.d_buf + src.d_size;
+      src.d_type = ELF_T_PHDR;
+      src.d_size = gelf_fsize (dso->elf, ELF_T_PHDR, dso->ehdr.e_phnum,
+                              EV_CURRENT);
+      dst = src;
+      switch (gelf_getclass (dso->elf))
+       {
+       case ELFCLASS32:
+         src.d_buf = elf32_getphdr (dso->elf);
+         if (elf32_xlatetof (&dst, &src, dso->ehdr.e_ident[EI_DATA]) == NULL)
+           {
+             error (0, 0, "%s: Failed to create .gnu.prelink_undo section",
+                    dso->filename);
+             return 1;
+           }
+         break;
+       case ELFCLASS64:
+         src.d_buf = elf64_getphdr (dso->elf);
+         if (elf64_xlatetof (&dst, &src, dso->ehdr.e_ident[EI_DATA]) == NULL)
+           {
+             error (0, 0, "%s: Failed to create .gnu.prelink_undo section",
+                    dso->filename);
+             return 1;
+           }
+         break;
+       }
+      src.d_buf = dst.d_buf + src.d_size;
+      src.d_type = ELF_T_SHDR;
+      src.d_size = gelf_fsize (dso->elf, ELF_T_SHDR,
+                              dso->ehdr.e_shnum - 1, EV_CURRENT);
+      dst = src;
+      switch (gelf_getclass (dso->elf))
+       {
+       case ELFCLASS32:
+         shdr32 = (Elf32_Shdr *) src.d_buf;
+         /* Note: cannot use dso->scn[i] below, since we want to save the
+            original section order before non-alloced sections were
+            sorted by sh_offset.  */
+         for (i = 1; i < dso->ehdr.e_shnum; ++i)
+           shdr32[i - 1] = *elf32_getshdr (elf_getscn (dso->elf, i));
+         if (elf32_xlatetof (&dst, &src, dso->ehdr.e_ident[EI_DATA]) == NULL)
+           {
+             error (0, 0, "%s: Failed to create .gnu.prelink_undo section",
+                    dso->filename);
+             return 1;
+           }
+         break;
+       case ELFCLASS64:
+         shdr64 = (Elf64_Shdr *) src.d_buf;
+         /* Note: cannot use dso->scn[i] below, since we want to save the
+            original section order before non-alloced sections were
+            sorted by sh_offset.  */
+         for (i = 1; i < dso->ehdr.e_shnum; ++i)
+           shdr64[i - 1] = *elf64_getshdr (elf_getscn (dso->elf, i));
+         if (elf64_xlatetof (&dst, &src, dso->ehdr.e_ident[EI_DATA]) == NULL)
+           {
+             error (0, 0, "%s: Failed to create .gnu.prelink_undo section",
+                    dso->filename);
+             return 1;
+           }
+         break;
+       }
+    }
+
+  if (dso->ehdr.e_type != ET_DYN)
+    return 0;
+
+  if (find_reloc_sections (dso, &rinfo))
+    return 1;
+
+  if (is_ldso_soname (dso->soname))
+    {
+      liblist = -1;
+      libstr = -1;
+    }
+
+  if (liblist && libstr && undo
+      && ! rinfo.rel_to_rela && ! rinfo.rel_to_rela_plt)
+      return 0;
+
+  if (! liblist || ! libstr || ! undo)
+    {
+      struct section_move *move;
+
+      move = init_section_move (dso);
+      if (move == NULL)
+       return 1;
+
+      if (! liblist)
+       {
+         liblist = move->old_to_new [dso->ehdr.e_shstrndx];
+         add_section (move, liblist);
+       }
+      else
+       liblist = 0;
+
+      if (! libstr)
+       {
+         add_section (move, liblist + 1);
+         libstr = liblist + 1;
+         newlibstr = 1;
+       }
+      else if (libstr != -1)
+       libstr = move->old_to_new[libstr];
+
+      if (! undo)
+       {
+         if (libstr == -1)
+           {
+             undo = move->old_to_new [dso->ehdr.e_shstrndx];
+             add_section (move, undo);
+           }
+         else
+           {
+             add_section (move, libstr + 1);
+             undo = libstr + 1;
+           }
+         newundo = 1;
+       }
+      else
+       undo = move->old_to_new[undo];
+
+      if (reopen_dso (dso, move, NULL))
+       {
+         free (move);
+         return 1;
+       }
+
+      free (move);
+      if (liblist)
+       {
+         memset (&dso->shdr[liblist], 0, sizeof (GElf_Shdr));
+         dso->shdr[liblist].sh_name = shstrtabadd (dso, ".gnu.liblist");
+         if (dso->shdr[liblist].sh_name == 0)
+           return 1;
+         dso->shdr[liblist].sh_type = SHT_GNU_LIBLIST;
+         dso->shdr[liblist].sh_offset = dso->shdr[liblist - 1].sh_offset;
+         if (dso->shdr[liblist - 1].sh_type != SHT_NOBITS)
+           dso->shdr[liblist].sh_offset += dso->shdr[liblist - 1].sh_size;
+         dso->shdr[liblist].sh_link = libstr;
+         dso->shdr[liblist].sh_addralign = sizeof (GElf_Word);
+         dso->shdr[liblist].sh_entsize = sizeof (Elf32_Lib);
+       }
+
+      if (newlibstr)
+       {
+         memset (&dso->shdr[libstr], 0, sizeof (GElf_Shdr));
+         dso->shdr[libstr].sh_name = shstrtabadd (dso, ".gnu.libstr");
+         if (dso->shdr[libstr].sh_name == 0)
+           return 1;
+         dso->shdr[libstr].sh_type = SHT_STRTAB;
+         dso->shdr[libstr].sh_offset = dso->shdr[libstr - 1].sh_offset;
+         if (dso->shdr[libstr - 1].sh_type != SHT_NOBITS)
+           dso->shdr[libstr].sh_offset += dso->shdr[libstr - 1].sh_size;
+         dso->shdr[libstr].sh_addralign = 1;
+       }
+
+      if (newundo)
+       {
+         Elf_Scn *scn;
+         Elf_Data *data;
+         GElf_Addr newoffset;
+
+         memset (&dso->shdr[undo], 0, sizeof (GElf_Shdr));
+         dso->shdr[undo].sh_name = shstrtabadd (dso, ".gnu.prelink_undo");
+         if (dso->shdr[undo].sh_name == 0)
+           return 1;
+         dso->shdr[undo].sh_type = SHT_PROGBITS;
+         dso->shdr[undo].sh_offset = dso->shdr[undo - 1].sh_offset;
+         if (dso->shdr[undo - 1].sh_type != SHT_NOBITS)
+           dso->shdr[undo].sh_offset += dso->shdr[undo - 1].sh_size;
+         dso->shdr[undo].sh_addralign = dso->undo.d_align;
+         dso->shdr[undo].sh_entsize = 1;
+         dso->shdr[undo].sh_size = dso->undo.d_size;
+         newoffset = dso->shdr[undo].sh_offset + dso->undo.d_align - 1;
+         newoffset &= ~(dso->shdr[undo].sh_addralign - 1);
+         if (adjust_dso_nonalloc (dso, undo + 1, dso->shdr[undo].sh_offset,
+                                  dso->undo.d_size + newoffset
+                                  - dso->shdr[undo].sh_offset))
+           return 1;
+         dso->shdr[undo].sh_offset = newoffset;
+         scn = dso->scn[undo];
+         data = elf_getdata (scn, NULL);
+         assert (data != NULL && elf_getdata (scn, data) == NULL);
+         free (data->d_buf);
+         *data = dso->undo;
+         dso->undo.d_buf = NULL;
+       }
+    }
+  else if (reopen_dso (dso, NULL, NULL))
+    return 1;
+
+  if (rinfo.rel_to_rela || rinfo.rel_to_rela_plt)
+    {
+      /* On REL architectures, we might need to convert some REL
+        relocations to RELA relocs.  */
+
+      int safe = 1, align = 0, last;
+      GElf_Addr start, adjust, adjust1, adjust2;
+
+      for (i = 1; i < (rinfo.plt ? rinfo.plt : rinfo.first); i++)
+       switch (dso->shdr[i].sh_type)
+         {
+         case SHT_HASH:
+         case SHT_GNU_HASH:
+         case SHT_DYNSYM:
+         case SHT_REL:
+         case SHT_RELA:
+         case SHT_STRTAB:
+         case SHT_NOTE:
+         case SHT_GNU_verdef:
+         case SHT_GNU_verneed:
+         case SHT_GNU_versym:
+           /* These sections are safe, no relocations should point
+              to it, therefore enlarging a section after sections
+              from this set only (and SHT_REL) in ET_DYN just needs
+              adjusting the rest of the library.  */
+           break;
+         case SHT_DYNAMIC:
+         case SHT_MIPS_REGINFO:
+           /* The same applies to these sections on MIPS.  The convention
+              is to put .dynamic and .reginfo near the beginning of the
+              read-only segment, before the program text.  No relocations
+              may refer to them.  */
+           if (dso->ehdr.e_machine == EM_MIPS)
+             break;
+           /* FALLTHROUGH */
+         default:
+           /* The rest of sections are not safe.  */
+           safe = 0;
+           break;
+         }
+
+      if (! safe)
+       {
+         error (0, 0, "%s: Cannot safely convert %s' section from REL to RELA",
+                dso->filename, strptr (dso, dso->ehdr.e_shstrndx,
+                                       dso->shdr[rinfo.rel_to_rela
+                                       ? rinfo.first : rinfo.plt].sh_name));
+         return 1;
+       }
+
+      for (i = rinfo.plt ? rinfo.plt : rinfo.first; i < dso->ehdr.e_shnum; i++)
+       {
+         if (dso->shdr[i].sh_addralign > align)
+           align = dso->shdr[i].sh_addralign;
+       }
+
+      if (rinfo.plt)
+       start = dso->shdr[rinfo.plt].sh_addr + dso->shdr[rinfo.plt].sh_size;
+      else
+       start = dso->shdr[rinfo.last].sh_addr + dso->shdr[rinfo.last].sh_size;
+
+      adjust1 = 0;
+      adjust2 = 0;
+      assert (sizeof (Elf32_Rel) * 3 == sizeof (Elf32_Rela) * 2);
+      assert (sizeof (Elf64_Rel) * 3 == sizeof (Elf64_Rela) * 2);
+      if (rinfo.rel_to_rela)
+       {
+         for (i = rinfo.first; i <= rinfo.last; ++i)
+           {
+             GElf_Addr size = dso->shdr[i].sh_size / 2 * 3;
+             adjust1 += size - dso->shdr[i].sh_size;
+             if (convert_rel_to_rela (dso, i))
+               return 1;
+           }
+       }
+      if (rinfo.rel_to_rela_plt)
+       {
+         GElf_Addr size = dso->shdr[rinfo.plt].sh_size / 2 * 3;
+         adjust2 = size - dso->shdr[rinfo.plt].sh_size;
+         if (convert_rel_to_rela (dso, rinfo.plt))
+           return 1;
+       }
+
+      adjust = adjust1 + adjust2;
+
+      /* Need to make sure that all the remaining sections are properly
+        aligned.  */
+      if (align)
+       adjust = (adjust + align - 1) & ~(align - 1);
+
+      /* Need to make sure adjust doesn't cause different Phdr segments
+        to overlap on the same page.  */
+      last = -1;
+      for (i = 0; i < dso->ehdr.e_phnum; ++i)
+       if (dso->phdr[i].p_type == PT_LOAD
+           && dso->phdr[i].p_vaddr + dso->phdr[i].p_memsz >= start)
+         {
+           if (last != -1
+               && (((dso->phdr[last].p_vaddr + dso->phdr[last].p_memsz - 1)
+                    ^ dso->phdr[i].p_vaddr)
+                   & ~(dso->arch->max_page_size - 1))
+               && !(((dso->phdr[last].p_vaddr + dso->phdr[last].p_memsz
+                      + adjust - 1)
+                     ^ (dso->phdr[i].p_vaddr + adjust))
+                    & ~(dso->arch->max_page_size - 1)))
+             {
+               if (align >= dso->arch->max_page_size)
+                 {
+                   error (0, 0, "%s: Cannot grow reloc sections", dso->filename);
+                   return 1;
+                 }
+               adjust = (adjust + dso->arch->max_page_size - 1)
+                        & ~(dso->arch->max_page_size - 1);
+             }
+           last = i;
+         }
+
+      /* Adjust all addresses pointing into remaining sections.  */
+      if (adjust_dso (dso, start - 1, adjust))
+       return 1;
+
+      if (rinfo.rel_to_rela)
+       {
+         GElf_Addr adjust3 = 0;
+         for (i = rinfo.first; i <= rinfo.last; ++i)
+           {
+             GElf_Addr size = dso->shdr[i].sh_size / 2 * 3;
+
+             dso->shdr[i].sh_addr += adjust3;
+             dso->shdr[i].sh_offset += adjust3;
+             adjust3 += size - dso->shdr[i].sh_size;
+             dso->shdr[i].sh_size = size;
+           }
+         assert (adjust1 == adjust3);
+         if (rinfo.plt)
+           {
+             dso->shdr[rinfo.plt].sh_addr += adjust1;
+             dso->shdr[rinfo.plt].sh_offset += adjust1;
+           }
+       }
+      if (rinfo.rel_to_rela_plt)
+       dso->shdr[rinfo.plt].sh_size += adjust2;
+
+      if (update_dynamic_rel (dso, &rinfo))
+       return 1;
+    }
+
+  return 0;
+}
+
+static int
+prelink_dso (struct prelink_info *info)
+{
+  int liblist = 0, libstr = 0, nobits_plt = 0;
+  int i, ndeps = info->ent->ndepends + 1;
+  DSO *dso = info->dso;
+  Elf32_Lib *list = NULL;
+  Elf_Scn *scn;
+  Elf_Data *data;
+  GElf_Addr oldsize, oldoffset;
+  size_t strsize;
+
+  if (dso->ehdr.e_type != ET_DYN)
+    return 0;
+
+  for (i = 1; i < dso->ehdr.e_shnum; ++i)
+    {
+      const char *name
+       = strptr (dso, dso->ehdr.e_shstrndx, dso->shdr[i].sh_name);
+      if (! strcmp (name, ".gnu.liblist"))
+       liblist = i;
+      else if (! strcmp (name, ".gnu.libstr"))
+       libstr = i;
+      else if (! strcmp (name, ".plt") && dso->shdr[i].sh_type == SHT_NOBITS)
+       nobits_plt = i;
+#if 0
+      else if (dso->arch->create_opd && ! strcmp (name, ".opd"))
+       opd = i;
+#endif
+    }
+
+  if (nobits_plt)
+    {
+      int j, first;
+      GElf_Addr adj, last_offset;
+
+      for (i = 0; i < dso->ehdr.e_phnum; ++i)
+       if (dso->phdr[i].p_type == PT_LOAD
+           && dso->phdr[i].p_vaddr <= dso->shdr[nobits_plt].sh_addr
+           && dso->phdr[i].p_vaddr + dso->phdr[i].p_memsz
+              >= dso->shdr[nobits_plt].sh_addr
+                 + dso->shdr[nobits_plt].sh_size)
+         break;
+
+      if (i == dso->ehdr.e_phnum)
+       {
+         error (0, 0, "%s: .plt section not contained within a segment",
+                dso->filename);
+         return 1;
+       }
+
+      for (j = i + 1; j < dso->ehdr.e_phnum; ++j)
+       if (dso->phdr[j].p_type == PT_LOAD)
+         {
+           error (0, 0, "%s: library's NOBITS .plt section not in loadable last segment",
+                  dso->filename);
+           return 1;
+         }
+
+      for (j = nobits_plt - 1; j > 0; --j)
+       if (dso->shdr[j].sh_addr < dso->phdr[i].p_vaddr
+           || dso->shdr[j].sh_type != SHT_NOBITS)
+         break;
+      first = j + 1;
+
+      for (j = first; j <= nobits_plt; ++j)
+       {
+         Elf_Data *data = elf_getdata (dso->scn[j], NULL);
+
+         assert (data->d_buf == NULL);
+         assert (data->d_size == dso->shdr[j].sh_size);
+         if (data->d_size)
+           {
+             data->d_buf = calloc (data->d_size, 1);
+             if (data->d_buf == NULL)
+               {
+                 error (0, ENOMEM, "%s: Could not convert NOBITS section into PROGBITS",
+                        dso->filename);
+                 return 1;
+               }
+           }
+         data->d_type = ELF_T_BYTE;
+         dso->shdr[j].sh_type = SHT_PROGBITS;
+         dso->shdr[j].sh_offset = dso->phdr[i].p_offset + dso->shdr[j].sh_addr
+                                  - dso->phdr[i].p_vaddr;
+       }
+
+      adj = dso->shdr[nobits_plt].sh_offset + dso->shdr[nobits_plt].sh_size
+           - dso->phdr[i].p_offset;
+      assert (adj <= dso->phdr[i].p_memsz);
+      if (adj > dso->phdr[i].p_filesz)
+       {
+         adj -= dso->phdr[i].p_filesz;
+         dso->phdr[i].p_filesz += adj;
+         if (adjust_dso_nonalloc (dso, nobits_plt + 1,
+                                  dso->shdr[first].sh_offset, adj))
+           return 1;
+       }
+
+      last_offset = dso->shdr[nobits_plt].sh_offset
+                   + dso->shdr[nobits_plt].sh_size;
+      for (j = nobits_plt + 1; j < dso->ehdr.e_shnum; ++j)
+       if (!(dso->shdr[j].sh_flags & (SHF_ALLOC | SHF_WRITE | SHF_EXECINSTR)))
+         break;
+       else
+         {
+           last_offset += dso->shdr[j].sh_addralign - 1;
+           last_offset &= ~(dso->shdr[j].sh_addralign - 1);
+           if (last_offset > dso->phdr[i].p_offset + dso->phdr[i].p_filesz)
+             last_offset = dso->phdr[i].p_offset + dso->phdr[i].p_filesz;
+           dso->shdr[j].sh_offset = last_offset;
+         }
+    }
+
+  if (ndeps <= 1)
+    return 0;
+
+  assert (liblist != 0);
+  assert (libstr != 0);
+
+  list = calloc (ndeps - 1, sizeof (Elf32_Lib));
+  if (list == NULL)
+    {
+      error (0, ENOMEM, "%s: Cannot build .gnu.liblist section",
+            dso->filename);
+      goto error_out;
+    }
+
+  strsize = 1;
+  for (i = 0; i < ndeps - 1; ++i)
+    {
+      struct prelink_entry *ent = info->ent->depends[i];
+
+      strsize += strlen (info->sonames[i + 1]) + 1;
+      list[i].l_time_stamp = ent->timestamp;
+      list[i].l_checksum = ent->checksum;
+    }
+
+  scn = dso->scn[libstr];
+  data = elf_getdata (scn, NULL);
+  if (data == NULL)
+    data = elf_newdata (scn);
+  assert (elf_getdata (scn, data) == NULL);
+
+  data->d_type = ELF_T_BYTE;
+  data->d_size = 1;
+  data->d_off = 0;
+  data->d_align = 1;
+  data->d_version = EV_CURRENT;
+  data->d_buf = realloc (data->d_buf, strsize);
+  if (data->d_buf == NULL)
+    {
+      error (0, ENOMEM, "%s: Could not build .gnu.libstr section",
+            dso->filename);
+      goto error_out;
+    }
+
+  oldsize = dso->shdr[libstr].sh_size;
+  dso->shdr[libstr].sh_size = 1;
+  *(char *)data->d_buf = '\0';
+  for (i = 0; i < ndeps - 1; ++i)
+    {
+      const char *name = info->sonames[i + 1];
+
+      list[i].l_name = strtabfind (dso, liblist, name);
+      if (list[i].l_name == 0)
+       {
+         size_t len = strlen (name) + 1;
+
+         memcpy (data->d_buf + data->d_size, name, len);
+         list[i].l_name = data->d_size;
+         data->d_size += len;
+         dso->shdr[libstr].sh_size += len;
+       }
+    }
+  if (oldsize != dso->shdr[libstr].sh_size)
+    {
+      GElf_Addr adjust = dso->shdr[libstr].sh_size - oldsize;
+
+      oldoffset = dso->shdr[libstr].sh_offset;
+      if (adjust_dso_nonalloc (dso, libstr + 1, oldoffset, adjust))
+       goto error_out;
+    }
+
+  scn = dso->scn[liblist];
+  data = elf_getdata (scn, NULL);
+  if (data == NULL)
+    data = elf_newdata (scn);
+  assert (elf_getdata (scn, data) == NULL);
+
+  data->d_type = ELF_T_WORD;
+  data->d_size = (ndeps - 1) * sizeof (Elf32_Lib);
+  data->d_off = 0;
+  data->d_align = sizeof (GElf_Word);
+  data->d_version = EV_CURRENT;
+  free (data->d_buf);
+  data->d_buf = list;
+  list = NULL;
+
+  if (data->d_size != dso->shdr[liblist].sh_size)
+    {
+      GElf_Addr adjust = data->d_size - dso->shdr[liblist].sh_size;
+      GElf_Addr newoffset;
+
+      oldoffset = dso->shdr[liblist].sh_offset;
+      newoffset = oldoffset;
+      if (newoffset & (data->d_align - 1))
+       {
+         newoffset = (newoffset + data->d_align - 1) & ~(data->d_align - 1);
+         adjust += newoffset - dso->shdr[liblist].sh_offset;
+       }
+      if (adjust_dso_nonalloc (dso, liblist + 1, oldoffset, adjust))
+       goto error_out;
+      dso->shdr[liblist].sh_offset = newoffset;
+      dso->shdr[liblist].sh_size = data->d_size;
+    }
+
+  recompute_nonalloc_offsets (dso);
+  return 0;
+
+error_out:
+  free (list);
+  return 1;
+}
+
+static int
+prelink_set_timestamp (struct prelink_info *info)
+{
+  DSO *dso = info->dso;
+
+  if (! verify)
+    info->ent->timestamp = (GElf_Word) time (NULL);
+  dso->info_DT_GNU_PRELINKED = info->ent->timestamp;
+  if (prelink_set_checksum (dso))
+    return 1;
+  info->ent->checksum = dso->info_DT_CHECKSUM;
+  return 0;
+}
+
+static void
+free_info (struct prelink_info *info)
+{
+  int i;
+
+  free (info->symtab);
+  free (info->dynbss);
+  free (info->sdynbss);
+  free (info->conflict_rela);
+  if (info->conflicts)
+    {
+      for (i = 0; i < info->ent->ndepends + 1; ++i)
+       {
+         if (info->conflicts[i].hash == &info->conflicts[i].first)
+           {
+             struct prelink_conflict *c = info->conflicts[i].first;
+             void *f;
+
+             while (c != NULL)
+               {
+                 f = c;
+                 c = c->next;
+                 free (f);
+               }
+           }
+         else
+           {
+             int j;
+             for (j = 0; j < 251; j++)
+               {
+                 struct prelink_conflict *c = info->conflicts[i].hash[j];
+                 void *f;
+
+                 while (c != NULL)
+                   {
+                     f = c;
+                     c = c->next;
+                     free (f);
+                   }
+               }
+             free (info->conflicts[i].hash);
+           }
+         if (info->conflicts[i].hash2 != NULL)
+           free (info->conflicts[i].hash2);
+       }
+      free (info->conflicts);
+    }
+  if (info->sonames)
+    {
+      for (i = 0; i < info->ent->ndepends + 1; ++i)
+       free ((char *) info->sonames[i]);
+      free (info->sonames);
+    }
+  free (info->tls);
+  if (info->symbols)
+    {
+      for (i = 0; i < info->symbol_count; ++i)
+       {
+         struct prelink_symbol *s = info->symbols[i].next;
+         void *f;
+
+         while (s != NULL)
+           {
+             f = s;
+             s = s->next;
+             free (f);
+           }
+       }
+      free (info->symbols);
+    }
+}
+
+int
+prelink (DSO *dso, struct prelink_entry *ent)
+{
+  int i;
+  Elf_Scn *scn;
+  Elf_Data *data;
+  struct prelink_info info;
+
+  ent->pltgot = dso->info[DT_PLTGOT];
+
+  if (! dso->info[DT_SYMTAB])
+    return 0;
+
+  if (! dso_is_rdwr (dso) && dso->ehdr.e_type == ET_DYN)
+    {
+      if (reopen_dso (dso, NULL, NULL))
+       return 1;
+    }
+
+  i = addr_to_sec (dso, dso->info[DT_SYMTAB]);
+  /* DT_SYMTAB should be found and should point to
+     start of .dynsym section.  */
+  if (i == -1
+      || dso->info[DT_SYMTAB] != dso->shdr[i].sh_addr)
+    {
+      error (0, 0, "%s: Bad symtab", dso->filename);
+      return 1;
+    }
+
+  memset (&info, 0, sizeof (info));
+  info.ent = ent;
+  info.symtab_entsize = dso->shdr[i].sh_entsize;
+  info.symtab = calloc (dso->shdr[i].sh_size / dso->shdr[i].sh_entsize,
+                       sizeof (GElf_Sym));
+  if (info.symtab == NULL)
+    {
+      error (0, ENOMEM, "%s: Cannot convert .dynsym section", dso->filename);
+      return 1;
+    }
+
+  scn = dso->scn[i];
+  data = NULL;
+  while ((data = elf_getdata (scn, data)) != NULL)
+    {
+      int ndx, maxndx, loc;
+
+      loc = data->d_off / info.symtab_entsize;
+      maxndx = data->d_size / info.symtab_entsize;
+      for (ndx = 0; ndx < maxndx; ++ndx)
+       gelfx_getsym (dso->elf, data, ndx, info.symtab + loc + ndx);
+    }
+  info.symtab_start =
+    adjust_new_to_old (dso, dso->shdr[i].sh_addr - dso->base);
+  info.symtab_end = info.symtab_start + dso->shdr[i].sh_size;
+  info.dso = dso;
+  switch (prelink_get_relocations (&info))
+    {
+    case 0:
+      goto error_out;
+    case 1:
+      info.resolve = resolve_ldso;
+      break;
+    case 2:
+      info.resolve = resolve_dso;
+      break;
+    }
+
+  if (dso->arch->arch_pre_prelink && dso->arch->arch_pre_prelink (dso))
+    goto error_out;
+
+  if (dso->ehdr.e_type == ET_EXEC)
+    {
+      if (prelink_exec (&info))
+       goto error_out;
+    }
+  else if (prelink_dso (&info))
+    goto error_out;
+
+  for (i = 1; i < dso->ehdr.e_shnum; i++)
+    {
+      if (! (dso->shdr[i].sh_flags & SHF_ALLOC))
+       continue;
+      if (! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                           dso->shdr[i].sh_name),
+                   ".gnu.conflict"))
+       continue;
+      switch (dso->shdr[i].sh_type)
+       {
+       case SHT_REL:
+         if (prelink_rel (dso, i, &info))
+           goto error_out;
+         break;
+       case SHT_RELA:
+         if (prelink_rela (dso, i, &info))
+           goto error_out;
+         break;
+       }
+    }
+
+  if (dso->arch->arch_prelink && dso->arch->arch_prelink (&info))
+    goto error_out;
+
+  if (dso->arch->read_opd && dso->arch->read_opd (dso, ent))
+    goto error_out;
+
+  /* Must be last.  */
+  if (dso->ehdr.e_type == ET_DYN
+      && prelink_set_timestamp (&info))
+    goto error_out;
+
+  free_info (&info);
+  return 0;
+
+error_out:
+  free_info (&info);
+  return 1;
+}
diff --git a/src/prelink.h b/src/prelink.h
new file mode 100644 (file)
index 0000000..8fcb599
--- /dev/null
@@ -0,0 +1,543 @@
+/* Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009
+   Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifndef PRELINK_H
+#define PRELINK_H
+
+#include <elf.h>
+#include <libelf.h>
+#include <gelfx.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/stat.h>
+
+#ifndef DT_GNU_LIBLIST
+#define DT_GNU_LIBLIST         0x6ffffef9
+#define DT_GNU_LIBLISTSZ       0x6ffffdf7
+#define DT_GNU_CONFLICT                0x6ffffef8
+#define DT_GNU_CONFLICTSZ      0x6ffffdf6
+#define DT_GNU_PRELINKED       0x6ffffdf5
+#define SHT_GNU_LIBLIST                0x6ffffff7
+#endif
+
+#if DT_GNU_LIBLIST == 0x6ffffef7
+#undef DT_GNU_LIBLIST
+#undef DT_GNU_CONFLICT
+#undef SHT_GNU_LIBLIST
+#define DT_GNU_LIBLIST         0x6ffffef9
+#define DT_GNU_CONFLICT                0x6ffffef8
+#define SHT_GNU_LIBLIST                0x6ffffff7
+#endif
+
+#ifndef DT_GNU_HASH
+#define DT_GNU_HASH            0x6ffffef5
+#define SHT_GNU_HASH           0x6ffffff6
+#endif
+
+#ifndef DT_MIPS_RLD_VERSION
+#define DT_MIPS_RLD_VERSION    0x70000001
+#define DT_MIPS_TIME_STAMP     0x70000002
+#define DT_MIPS_ICHECKSUM      0x70000003
+#define DT_MIPS_IVERSION       0x70000004
+#define DT_MIPS_FLAGS          0x70000005
+#define DT_MIPS_BASE_ADDRESS   0x70000006
+#define DT_MIPS_CONFLICT       0x70000008
+#define DT_MIPS_LIBLIST                0x70000009
+#define DT_MIPS_LOCAL_GOTNO    0x7000000a
+#define DT_MIPS_CONFLICTNO     0x7000000b
+#define DT_MIPS_LIBLISTNO      0x70000010
+#define DT_MIPS_SYMTABNO       0x70000011
+#define DT_MIPS_UNREFEXTNO     0x70000012
+#define DT_MIPS_GOTSYM         0x70000013
+#define DT_MIPS_HIPAGENO       0x70000014
+#define DT_MIPS_RLD_MAP                0x70000016
+#endif
+
+#ifndef R_MIPS_TLS_DTPMOD32
+#define R_MIPS_TLS_DTPMOD32    38
+#define R_MIPS_TLS_DTPREL32    39
+#define R_MIPS_TLS_TPREL32     47
+#endif
+
+#ifndef R_MIPS_GLOB_DAT
+#define R_MIPS_GLOB_DAT                51
+#endif
+
+#ifndef R_ARM_TLS_DTPMOD32
+#define R_ARM_TLS_DTPMOD32     17
+#define R_ARM_TLS_DTPOFF32     18
+#define R_ARM_TLS_TPOFF32      19
+#endif
+
+#ifndef R_386_IRELATIVE
+#define R_386_IRELATIVE                42
+#endif
+
+#ifndef R_X86_64_IRELATIVE
+#define R_X86_64_IRELATIVE     37
+#endif
+
+#ifndef R_PPC_IRELATIVE
+#define R_PPC_IRELATIVE                248
+#endif
+
+#ifndef R_PPC64_JMP_IREL
+#define R_PPC64_JMP_IREL       247
+#define R_PPC64_IRELATIVE      248
+#endif
+
+struct prelink_entry;
+struct prelink_info;
+struct PLArch;
+struct opd_lib;
+
+struct PLAdjust
+{
+  GElf_Addr start;
+  GElf_Addr adjust;
+};
+
+struct section_move
+{
+  int old_shnum;
+  int new_shnum;
+  int *old_to_new;
+  int *new_to_old;
+};
+
+typedef struct
+{
+  Elf *elf, *elfro;
+  GElf_Ehdr ehdr;
+  GElf_Phdr *phdr;
+  Elf_Scn **scn;
+  GElf_Addr base, end, align;
+  GElf_Addr mask;
+  GElf_Addr info[DT_NUM];
+  GElf_Addr info_DT_GNU_PRELINKED;
+  GElf_Addr info_DT_CHECKSUM;
+  GElf_Addr info_DT_VERNEED, info_DT_VERDEF, info_DT_VERSYM;
+  GElf_Addr info_DT_GNU_HASH;
+  GElf_Addr info_DT_MIPS_LOCAL_GOTNO;
+  GElf_Addr info_DT_MIPS_GOTSYM;
+  GElf_Addr info_DT_MIPS_SYMTABNO;
+#define DT_GNU_PRELINKED_BIT 50
+#define DT_CHECKSUM_BIT 51
+#define DT_VERNEED_BIT 52
+#define DT_VERDEF_BIT 53
+#define DT_VERSYM_BIT 54
+#define DT_FILTER_BIT 55
+#define DT_AUXILIARY_BIT 56
+#define DT_LOPROC_BIT 57
+#define DT_GNU_HASH_BIT 58
+  uint64_t info_set_mask;
+  int fd, fdro;
+  int lastscn, dynamic;
+  const char *soname;
+  const char *filename, *temp_filename;
+  struct PLArch *arch;
+  struct PLAdjust *adjust;
+  /* .mdebug has absolute file offsets in it.  */
+  GElf_Off mdebug_orig_offset;
+  Elf_Data undo;
+  int nadjust;
+  int permissive;
+  struct section_move *move;
+  GElf_Shdr shdr[0];
+} DSO;
+
+#define dynamic_info_is_set(dso,bit) ((dso)->info_set_mask & (1ULL << (bit)))
+
+struct layout_libs;
+
+struct PLArch
+{
+  const char *name;
+  int class;
+  int machine;
+  int alternate_machine[3];
+  int max_reloc_size;
+  const char *dynamic_linker;
+  int R_COPY;
+  int R_JMP_SLOT;
+  int R_RELATIVE;
+  int rtype_class_valid;
+  int (*arch_adjust) (DSO *dso, GElf_Addr start, GElf_Addr adjust);
+  int (*adjust_section) (DSO *dso, int n, GElf_Addr start, GElf_Addr adjust);
+  int (*adjust_dyn) (DSO *dso, int n, GElf_Dyn *dyn, GElf_Addr start,
+                    GElf_Addr adjust);
+  int (*adjust_rel) (DSO *dso, GElf_Rel *rel, GElf_Addr start,
+                    GElf_Addr adjust);
+  int (*adjust_rela) (DSO *dso, GElf_Rela *rela, GElf_Addr start,
+                     GElf_Addr adjust);
+  int (*prelink_rel) (struct prelink_info *info, GElf_Rel *rel,
+                     GElf_Addr reladdr);
+  int (*prelink_rela) (struct prelink_info *info, GElf_Rela *rela,
+                      GElf_Addr relaaddr);
+  int (*prelink_conflict_rel) (DSO *dso, struct prelink_info *info,
+                              GElf_Rel *rel, GElf_Addr reladdr);
+  int (*prelink_conflict_rela) (DSO *dso, struct prelink_info *info,
+                               GElf_Rela *rela, GElf_Addr relaaddr);
+  int (*arch_prelink_conflict) (DSO *dso, struct prelink_info *info);
+  int (*apply_conflict_rela) (struct prelink_info *info, GElf_Rela *rela,
+                             char *buf, GElf_Addr dest_addr);
+  int (*apply_rel) (struct prelink_info *info, GElf_Rel *rel, char *buf);
+  int (*apply_rela) (struct prelink_info *info, GElf_Rela *rela, char *buf);
+  int (*rel_to_rela) (DSO *dso, GElf_Rel *rel, GElf_Rela *rela);
+  int (*rela_to_rel) (DSO *dso, GElf_Rela *rela, GElf_Rel *rel);
+  int (*need_rel_to_rela) (DSO *dso, int first, int last);
+  GElf_Addr (*create_opd) (struct prelink_info *info, int first, int last,
+                          int plt);
+  int (*read_opd) (DSO *dso, struct prelink_entry *ent);
+  int (*free_opd) (struct prelink_entry *ent);
+  /* Return reloc size in bytes for given non-COPY reloc type.  */
+  int (*reloc_size) (int);
+#define RTYPE_CLASS_VALID      8
+#define RTYPE_CLASS_PLT                (8|1)
+#define RTYPE_CLASS_COPY       (8|2)
+#define RTYPE_CLASS_TLS                (8|4)
+  int (*reloc_class) (int);
+  int (*arch_pre_prelink) (DSO *dso);
+  int (*arch_prelink) (struct prelink_info *info);
+  int (*arch_undo_prelink) (DSO *dso);
+  int (*undo_prelink_rel) (DSO *dso, GElf_Rel *rel, GElf_Addr reladdr);
+  int (*undo_prelink_rela) (DSO *dso, GElf_Rela *rela, GElf_Addr relaaddr);
+  int (*layout_libs_init) (struct layout_libs *l);
+  int (*layout_libs_pre) (struct layout_libs *l);
+  int (*layout_libs_post) (struct layout_libs *l);
+  GElf_Addr mmap_base, mmap_end;
+  /* max_page_size is the ELF page size (ELF_MAXPAGESIZE in bfd),
+     page_size is PAGE_SIZE the architecture typically has,
+     or if there are more typical sizes, the smallest one.
+     It doesn't need to be the absolutely smallest supported one,
+     prelink only optimizes for such page_size.  */
+  GElf_Addr max_page_size, page_size;
+} __attribute__((aligned(64)));
+
+DSO * open_dso (const char *name);
+DSO * fdopen_dso (int fd, const char *name);
+struct section_move *init_section_move (DSO *dso);
+void add_section (struct section_move *move, int sec);
+void remove_section (struct section_move *move, int sec);
+int reopen_dso (DSO *dso, struct section_move *move, const char *);
+int adjust_symbol_p (DSO *dso, GElf_Sym *sym);
+int check_dso (DSO *dso);
+int dso_is_rdwr (DSO *dso);
+void read_dynamic (DSO *dso);
+int set_dynamic (DSO *dso, GElf_Word tag, GElf_Addr value, int fatal);
+int addr_to_sec (DSO *dso, GElf_Addr addr);
+int adjust_dso (DSO *dso, GElf_Addr start, GElf_Addr adjust);
+int adjust_nonalloc (DSO *dso, GElf_Ehdr *ehdr, GElf_Shdr *shdr, int first,
+                    GElf_Addr start, GElf_Addr adjust);
+int adjust_dso_nonalloc (DSO *dso, int first, GElf_Addr start,
+                        GElf_Addr adjust);
+int recompute_nonalloc_offsets (DSO *dso);
+int adjust_stabs (DSO *dso, int n, GElf_Addr start, GElf_Addr adjust);
+int adjust_dwarf2 (DSO *dso, int n, GElf_Addr start, GElf_Addr adjust);
+int adjust_mdebug (DSO *dso, int n, GElf_Addr start, GElf_Addr adjust);
+int finalize_mdebug (DSO *dso);
+int relocate_dso (DSO *dso, GElf_Addr base);
+int update_dso (DSO *dso, const char *);
+int prepare_write_dso (DSO *dso);
+int write_dso (DSO *dso);
+int close_dso (DSO *dso);
+GElf_Addr adjust_old_to_new (DSO *dso, GElf_Addr addr);
+GElf_Addr adjust_new_to_old (DSO *dso, GElf_Addr addr);
+int strtabfind (DSO *dso, int strndx, const char *name);
+int shstrtabadd (DSO *dso, const char *name);
+
+/* data.c */
+
+/* Used for reading consecutive blocks of data from a DSO.  */
+struct data_iterator {
+  /* The DSO that is being read.  */
+  DSO *dso;
+
+  /* The data block that contained the last byte to be read.
+     NULL if no data has been read yet or if the end of the
+     DSO has been reached.  */
+  Elf_Data *data;
+
+  /* The section that contains DATA, when DATA is nonnull.  */
+  int sec;
+
+  /* The address of the next byte.  */
+  GElf_Addr addr;
+
+  /* The offset of the next byte from the start of SEC, when DATA
+     is nonnull.  */
+  GElf_Addr sec_offset;
+};
+
+unsigned char * get_data (DSO *dso, GElf_Addr addr, int *scnp);
+#define READWRITEPROTO(le,nn)                                  \
+uint##nn##_t buf_read_u##le##nn (unsigned char *data);         \
+uint##nn##_t read_u##le##nn (DSO *dso, GElf_Addr addr);                \
+void buf_write_##le##nn (unsigned char *data, uint##nn##_t val);\
+int write_##le##nn (DSO *dso, GElf_Addr addr, uint##nn##_t val);
+#define READWRITEPROTOSIZE(nn)                                 \
+READWRITEPROTO(le,nn)                                          \
+READWRITEPROTO(be,nn)                                          \
+uint##nn##_t buf_read_une##nn (DSO *dso, unsigned char *data); \
+uint##nn##_t read_une##nn (DSO *dso, GElf_Addr addr);          \
+void buf_write_ne##nn (DSO *dso, unsigned char *data,          \
+                      uint##nn##_t val);                       \
+void write_ne##nn (DSO *dso, GElf_Addr addr, uint##nn##_t val);
+READWRITEPROTO(,8)
+READWRITEPROTOSIZE(16)
+READWRITEPROTOSIZE(32)
+READWRITEPROTOSIZE(64)
+#undef READWRITEPROTO
+#undef READWRITEPROTOSIZE
+const char * strptr (DSO *dso, int sec, off_t offset);
+void init_data_iterator (struct data_iterator *it, DSO *dso, GElf_Addr addr);
+unsigned char *get_data_from_iterator (struct data_iterator *it,
+                                      GElf_Addr size);
+int get_sym_from_iterator (struct data_iterator *it, GElf_Sym *sym);
+
+#define PL_ARCH \
+static struct PLArch plarch __attribute__((section("pl_arch"),used))
+
+#define addr_adjust(addr, start, adjust)       \
+  do {                                         \
+    if (addr >= start)                         \
+      addr += adjust;                          \
+  } while (0)
+
+struct prelink_cache_entry
+{
+  uint32_t filename;
+  uint32_t depends;
+  uint32_t checksum;
+#define PCF_UNPRELINKABLE      0x40000
+#define PCF_PRELINKED          0x20000
+#define PCF_ELF64              0x10000
+#define PCF_MACHINE            0x0ffff
+  uint32_t flags;
+  uint32_t ctime;
+  uint32_t mtime;
+  uint64_t base;
+  uint64_t end;
+};
+
+struct prelink_cache
+{
+#define PRELINK_CACHE_NAME "prelink-ELF"
+#define PRELINK_CACHE_VER "0.3.2"
+#define PRELINK_CACHE_MAGIC PRELINK_CACHE_NAME PRELINK_CACHE_VER
+  const char magic [sizeof (PRELINK_CACHE_MAGIC) - 1];
+  uint32_t nlibs;
+  uint32_t ndeps;
+  uint32_t len_strings;
+  uint32_t unused[9];
+  struct prelink_cache_entry entry[0];
+  /* uint32_t depends [ndeps]; */
+  /* const char strings [len_strings]; */
+};
+
+struct prelink_link
+{
+  struct prelink_link *next;
+  const char *canon_filename;
+};
+
+struct prelink_entry
+{
+  const char *filename;
+  const char *canon_filename;
+  const char *soname;
+  struct prelink_link *hardlink;
+  GElf_Word timestamp;
+  GElf_Word checksum;
+  GElf_Addr base, end, layend, pltgot;
+  dev_t dev;
+  ino64_t ino;
+#define ET_BAD                 (ET_NUM)
+#define ET_CACHE_EXEC          (ET_NUM + 1)
+#define ET_CACHE_DYN           (ET_NUM + 2)
+#define ET_UNPRELINKABLE       (ET_NUM + 3)
+  int type, done, ndepends, refs, flags;
+  union
+    {
+      int explicit;
+      int tmp;
+    } u;
+  uint32_t ctime, mtime;
+  struct prelink_entry **depends;
+  struct prelink_entry *prev, *next;
+  struct opd_lib *opd;
+};
+
+struct prelink_dir
+{
+  dev_t dev;
+  struct prelink_dir *next;
+  size_t len;
+  int flags;
+  char dir[0];
+};
+
+struct prelink_tls
+{
+  GElf_Addr modid;
+  GElf_Addr offset;
+};
+
+struct prelink_symbol
+{
+  union
+    {
+      struct prelink_entry *ent;
+      struct prelink_tls *tls;
+    } u;
+  struct prelink_symbol *next;
+  GElf_Addr value;
+  int reloc_class;
+};
+
+struct prelink_conflict
+{
+  struct prelink_conflict *next;
+  struct prelink_conflict *next2;
+  /* Object which it was relocated to.  */
+  union
+    {
+      struct prelink_entry *ent;
+      struct prelink_tls *tls;
+    } lookup,
+  /* Object which the relocation was prelinked to.  */
+      conflict;
+  /* Offset from start of owner to owner's symbol.  */
+  GElf_Addr symoff;
+  /* Value it has in lookup.ent.  */
+  GElf_Addr lookupval;
+  /* Value it has in conflict.ent.  */
+  GElf_Addr conflictval;
+  int reloc_class;
+  unsigned char used;
+  unsigned char ifunc;
+};
+
+struct prelink_conflicts
+{
+  struct prelink_conflict *first;
+  struct prelink_conflict **hash;
+  struct prelink_conflict **hash2;
+  size_t count;
+};
+
+#define conflict_lookup_value(cfl)                                       \
+  (((cfl)->reloc_class != RTYPE_CLASS_TLS ? (cfl)->lookup.ent->base : 0)  \
+   + (cfl)->lookupval)
+
+struct prelink_info
+{
+  DSO *dso;
+  DSO **dsos;
+  struct prelink_entry *ent;
+  struct prelink_symbol *symbols;
+  struct prelink_conflicts *conflicts;
+  struct prelink_conflicts *curconflicts;
+  struct prelink_tls *tls, *curtls;
+  const char **sonames;
+  char *dynbss, *sdynbss;
+  GElf_Addr dynbss_base, sdynbss_base;
+  size_t dynbss_size, sdynbss_size, symtab_entsize;
+  int symbol_count;
+  GElf_Sym *symtab;
+  GElf_Rela *conflict_rela;
+  size_t conflict_rela_alloced, conflict_rela_size;
+  GElf_Addr symtab_start, symtab_end;
+  GElf_Addr (*resolve) (struct prelink_info *info, GElf_Word r_sym,
+                        int reloc_type);
+  struct prelink_entry *resolveent;
+  struct prelink_tls *resolvetls;
+};
+
+int prelink_prepare (DSO *dso);
+int prelink (DSO *dso, struct prelink_entry *ent);
+int prelink_init_cache (void);
+int prelink_load_cache (void);
+int prelink_print_cache (void);
+int prelink_save_cache (int do_warn);
+struct prelink_entry *
+  prelink_find_entry (const char *filename, const struct stat64 *stp,
+                     int insert);
+struct prelink_conflict *
+  prelink_conflict (struct prelink_info *info, GElf_Word r_sym,
+                   int reloc_type);
+GElf_Rela *prelink_conflict_add_rela (struct prelink_info *info);
+int prelink_get_relocations (struct prelink_info *info);
+int prelink_build_conflicts (struct prelink_info *info);
+int update_dynamic_tags (DSO *dso, GElf_Shdr *shdr, GElf_Shdr *old_shdr,
+                        struct section_move *move);
+int prelink_exec (struct prelink_info *info);
+int prelink_set_checksum (DSO *dso);
+int is_ldso_soname (const char *soname);
+
+int prelink_undo (DSO *dso);
+
+int prelink_verify (const char *filename);
+
+int gather_object (const char *dir, int deref, int onefs);
+int read_config (const char *config);
+int gather_config (void);
+int gather_check_libs (void);
+int add_to_blacklist (const char *name, int deref, int onefs);
+int blacklist_from_config (void);
+
+FILE *execve_open (const char *path, char *const argv[], char *const envp[]);
+int execve_close (FILE *f);
+
+int remove_redundant_cxx_conflicts (struct prelink_info *info);
+int get_relocated_mem (struct prelink_info *info, DSO *dso, GElf_Addr addr,
+                      char *buf, GElf_Word size, GElf_Addr dest_addr);
+
+int layout_libs (void);
+
+void prelink_all (void);
+
+int undo_all (void);
+
+char *prelink_canonicalize (const char *name, struct stat64 *stp);
+
+extern const char *dynamic_linker;
+extern const char *ld_library_path;
+extern const char *prelink_cache;
+extern const char *prelink_conf;
+extern const char *undo_output;
+extern int all;
+extern int force;
+extern int random_base;
+extern int conserve_memory;
+extern int verbose;
+extern int dry_run;
+extern int libs_only;
+extern int enable_cxx_optimizations;
+extern int exec_shield;
+extern int undo;
+extern int verify;
+extern int print_cache;
+enum verify_method_t { VERIFY_CONTENT, VERIFY_MD5, VERIFY_SHA };
+extern enum verify_method_t verify_method;
+extern int quick;
+extern long long seed;
+extern GElf_Addr mmap_reg_start, mmap_reg_end;
+
+#endif /* PRELINK_H */
diff --git a/src/prelinktab.h b/src/prelinktab.h
new file mode 100644 (file)
index 0000000..f41c79c
--- /dev/null
@@ -0,0 +1,27 @@
+/* Copyright (C) 2001 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifndef PRELINKTAB_H
+#define PRELINKTAB_H
+
+#include "hashtab.h"
+#include "prelink.h"
+
+extern htab_t prelink_devino_htab, prelink_filename_htab;
+extern int prelink_entry_count;
+
+#endif /* PRELINKTAB_H */
diff --git a/src/reloc.c b/src/reloc.c
new file mode 100644 (file)
index 0000000..70b4dbc
--- /dev/null
@@ -0,0 +1,422 @@
+/* Copyright (C) 2001, 2002, 2003, 2005 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include "prelink.h"
+#include "reloc.h"
+
+int
+find_reloc_sections (DSO *dso, struct reloc_info *rinfo)
+{
+  int first, last, rela, i;
+  GElf_Addr start, end, pltstart, pltend;
+
+  memset (rinfo, 0, sizeof (*rinfo));
+
+  if (dynamic_info_is_set (dso, DT_REL)
+      && dynamic_info_is_set (dso, DT_RELA))
+    {
+      error (0, 0, "%s: Cannot prelink object with both DT_REL and DT_RELA tags",
+            dso->filename);
+      return 1;
+    }
+
+  rela = dynamic_info_is_set (dso, DT_RELA);
+
+  if (rela)
+    {
+      start = dso->info[DT_RELA];
+      end = dso->info[DT_RELA] + dso->info[DT_RELASZ];
+    }
+  else
+    {
+      start = dso->info[DT_REL];
+      end = dso->info[DT_REL] + dso->info[DT_RELSZ];
+    }
+  rinfo->reldyn_rela = rela;
+
+  if (dso->info[DT_JMPREL])
+    {
+      pltstart = dso->info[DT_JMPREL];
+      pltend = dso->info[DT_JMPREL] + dso->info[DT_PLTRELSZ];
+      first = addr_to_sec (dso, pltstart);
+      last = addr_to_sec (dso, pltend - 1);
+      if (first == -1
+         || last == -1
+         || first != last
+         || dso->shdr[first].sh_addr != pltstart
+         || dso->shdr[first].sh_addr + dso->shdr[first].sh_size != pltend
+         || (dso->info[DT_PLTREL] != DT_REL
+             && dso->info[DT_PLTREL] != DT_RELA)
+         || dso->shdr[first].sh_type
+            != (dso->info[DT_PLTREL] == DT_RELA ? SHT_RELA : SHT_REL)
+         || strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                            dso->shdr[first].sh_name),
+                    dso->info[DT_PLTREL] == DT_RELA
+                    ? ".rela.plt" : ".rel.plt"))
+       {
+         error (0, 0, "%s: DT_JMPREL tags don't surround .rel%s.plt section",
+                dso->filename, dso->info[DT_PLTREL] == DT_RELA ? "a" : "");
+         return 1;
+       }
+      rinfo->plt = first;
+      rinfo->plt_rela = (dso->shdr[first].sh_type == SHT_RELA);
+      if (dso->shdr[first].sh_type == SHT_REL
+         && dso->arch->need_rel_to_rela != NULL
+         && dso->arch->need_rel_to_rela (dso, first, first))
+       rinfo->rel_to_rela_plt = 1;
+    }
+  else
+    {
+      pltstart = end;
+      pltend = end;
+    }
+
+  if (start == 0 && end == 0)
+    {
+      /* No non-PLT relocations.  */
+      return 0;
+    }
+
+  if (start == end)
+    {
+      first = 0;
+      last = 0;
+    }
+  else
+    {
+      first = addr_to_sec (dso, start);
+      last = addr_to_sec (dso, end - 1);
+
+      if (first == -1
+         || last == -1
+         || dso->shdr[first].sh_addr != start
+         || dso->shdr[last].sh_addr + dso->shdr[last].sh_size != end)
+       {
+         error (0, 0, "%s: DT_REL%s tags don't surround whole relocation sections",
+                dso->filename, rela ? "A" : "");
+         return 1;
+       }
+
+      for (i = first; i <= last; i++)
+       if (dso->shdr[i].sh_type != (rela ? SHT_RELA : SHT_REL))
+         {
+           error (0, 0, "%s: DT_REL%s tags don't surround relocation sections of expected type",
+                  dso->filename, rela ? "A" : "");
+           return 1;
+         }
+    }
+
+  if (pltstart != end && pltend != end)
+    {
+      error (0, 0, "%s: DT_JMPREL tag not adjacent to DT_REL%s relocations",
+            dso->filename, rela ? "A" : "");
+      return 1;
+    }
+
+  if (pltstart == start && pltend == end)
+    {
+      /* No non-PLT relocations.  */
+      rinfo->overlap = 1;
+      return 0;
+    }
+
+  if (pltstart != end && pltend == end)
+    {
+      rinfo->overlap = 1;
+      --last;
+    }
+
+  rinfo->first = first;
+  rinfo->last = last;
+  if (! rela
+      && first
+      && dso->arch->need_rel_to_rela != NULL
+      && dso->arch->need_rel_to_rela (dso, first, last))
+    rinfo->rel_to_rela = 1;
+  return 0;
+}
+
+int
+convert_rel_to_rela (DSO *dso, int i)
+{
+  Elf_Data d1, d2, *d;
+  Elf_Scn *scn;
+  GElf_Rel rel;
+  GElf_Rela rela;
+  int ndx, maxndx;
+
+  scn = dso->scn[i];
+  d = elf_getdata (scn, NULL);
+  assert (elf_getdata (scn, d) == NULL);
+  assert (d->d_off == 0);
+  assert (d->d_size == dso->shdr[i].sh_size);
+  d1 = *d;
+  d2 = *d;
+  assert (sizeof (Elf32_Rel) * 3 == sizeof (Elf32_Rela) * 2);
+  assert (sizeof (Elf64_Rel) * 3 == sizeof (Elf64_Rela) * 2);
+  d1.d_size = d->d_size / 2 * 3;
+  d1.d_buf = malloc (d1.d_size);
+  d1.d_type = ELF_T_RELA;
+  if (d1.d_buf == NULL)
+    {
+      error (0, ENOMEM, "Cannot convert REL section to RELA");
+      return 1;
+    }
+
+  maxndx = d->d_size / dso->shdr[i].sh_entsize;
+  for (ndx = 0; ndx < maxndx; ndx++)
+    {
+      if (gelfx_getrel (dso->elf, d, ndx, &rel) == 0
+         || dso->arch->rel_to_rela (dso, &rel, &rela))
+       {
+         free (d1.d_buf);
+         return 1;
+       }
+      /* gelf_update_rel etc. should have Elf * argument, so that
+        we don't have to do this crap.  */
+      *d = d1;
+      if (gelfx_update_rela (dso->elf, d, ndx, &rela) == 0)
+       {
+         *d = d2;
+         free (d1.d_buf);
+         return 1;
+       }
+      *d = d2;
+    }
+
+  free (d2.d_buf);
+  *d = d1;
+  dso->shdr[i].sh_entsize
+    = gelf_fsize (dso->elf, ELF_T_RELA, 1, EV_CURRENT);
+  dso->shdr[i].sh_type = SHT_RELA;
+  return 0;
+}
+
+int
+convert_rela_to_rel (DSO *dso, int i)
+{
+  Elf_Data d1, d2, *d;
+  Elf_Scn *scn;
+  GElf_Rel rel;
+  GElf_Rela rela;
+  int ndx, maxndx;
+
+  scn = dso->scn[i];
+  d = elf_getdata (scn, NULL);
+  assert (elf_getdata (scn, d) == NULL);
+  assert (d->d_off == 0);
+  assert (d->d_size == dso->shdr[i].sh_size);
+  d1 = *d;
+  d2 = *d;
+  assert (sizeof (Elf32_Rel) * 3 == sizeof (Elf32_Rela) * 2);
+  assert (sizeof (Elf64_Rel) * 3 == sizeof (Elf64_Rela) * 2);
+  d1.d_size = d->d_size / 3 * 2;
+  d1.d_buf = malloc (d1.d_size);
+  d1.d_type = ELF_T_REL;
+  if (d1.d_buf == NULL)
+    {
+      error (0, ENOMEM, "Cannot convert RELA section to REL");
+      return 1;
+    }
+
+  maxndx = d->d_size / dso->shdr[i].sh_entsize;
+  for (ndx = 0; ndx < maxndx; ndx++)
+    {
+      if (gelfx_getrela (dso->elf, d, ndx, &rela) == 0
+         || dso->arch->rela_to_rel (dso, &rela, &rel))
+       {
+         free (d1.d_buf);
+         return 1;
+       }
+      /* gelf_update_rela etc. should have Elf * argument, so that
+        we don't have to do this crap.  */
+      *d = d1;
+      if (gelfx_update_rel (dso->elf, d, ndx, &rel) == 0)
+       {
+         *d = d2;
+         free (d1.d_buf);
+         return 1;
+       }
+      *d = d2;
+    }
+
+  free (d2.d_buf);
+  *d = d1;
+  dso->shdr[i].sh_entsize
+    = gelf_fsize (dso->elf, ELF_T_REL, 1, EV_CURRENT);
+  dso->shdr[i].sh_type = SHT_REL;
+  return 0;
+}
+
+int
+update_dynamic_rel (DSO *dso, struct reloc_info *rinfo)
+{
+  GElf_Dyn *info[DT_NUM], *info_DT_RELCOUNT, *info_DT_RELACOUNT;
+  GElf_Dyn *dynamic = NULL;
+  int rel = rinfo->first, plt = rinfo->plt, overlap = rinfo->overlap;
+  int dynsec, count = 0, loc;
+  Elf_Data *data;
+  Elf_Scn *scn = NULL;
+
+  memset (&info, 0, sizeof (info));
+  info_DT_RELCOUNT = NULL;
+  info_DT_RELACOUNT = NULL;
+  for (dynsec = 0; dynsec < dso->ehdr.e_shnum; dynsec++)
+    if (dso->shdr[dynsec].sh_type == SHT_DYNAMIC)
+      {
+       scn = dso->scn[dynsec];
+       dynamic = alloca (dso->shdr[dynsec].sh_size
+                         / dso->shdr[dynsec].sh_entsize * sizeof (GElf_Dyn));
+       loc = 0;
+       data = NULL;
+       while ((data = elf_getdata (scn, data)) != NULL)
+         {
+           int ndx, maxndx;
+
+           maxndx = data->d_size / dso->shdr[dynsec].sh_entsize;
+           for (ndx = 0; ndx < maxndx; ++ndx, ++loc)
+             {
+               gelfx_getdyn (dso->elf, data, ndx, dynamic + loc);
+               if (dynamic[loc].d_tag == DT_NULL)
+                 break;
+               else if ((GElf_Xword) dynamic[loc].d_tag < DT_NUM)
+                 info[dynamic[loc].d_tag] = dynamic + loc;
+               else if (dynamic[loc].d_tag == DT_RELCOUNT)
+                 info_DT_RELCOUNT = dynamic + loc;
+               else if (dynamic[loc].d_tag == DT_RELACOUNT)
+                 info_DT_RELACOUNT = dynamic + loc;
+             }
+           if (ndx < maxndx)
+             break;
+         }
+       count = loc;
+       break;
+      }
+
+  if (rel && plt && overlap)
+    {
+      if (dso->shdr[rel].sh_type != dso->shdr[plt].sh_type)
+       overlap = 0;
+    }
+
+  if (rel || (plt && overlap))
+    {
+      int dt_RELENT, dt_REL, dt_RELSZ;
+
+      if (rinfo->reldyn_rela)
+       {
+         dt_RELENT = DT_RELAENT;
+         dt_REL = DT_RELA;
+         dt_RELSZ = DT_RELASZ;
+       }
+      else
+       {
+         dt_RELENT = DT_RELENT;
+         dt_REL = DT_REL;
+         dt_RELSZ = DT_RELSZ;
+       }
+
+      assert (dso->info[dt_RELENT]
+             == gelf_fsize (dso->elf, rinfo->reldyn_rela
+                            ? ELF_T_RELA : ELF_T_REL, 1, EV_CURRENT));
+      assert (dso->info[dt_REL] != 0);
+      assert (dso->info[dt_RELSZ] != 0);
+
+      info[dt_REL]->d_un.d_ptr = dso->shdr[rel ?: plt].sh_addr;
+      if (plt && overlap)
+       info[dt_RELSZ]->d_un.d_val =
+         dso->shdr[plt].sh_addr + dso->shdr[plt].sh_size;
+      else
+       info[dt_RELSZ]->d_un.d_val =
+         dso->shdr[rinfo->last].sh_addr + dso->shdr[rinfo->last].sh_size;
+      info[dt_RELSZ]->d_un.d_val -= info[dt_REL]->d_un.d_ptr;
+
+      if (!rinfo->reldyn_rela && dso->shdr[rel ?: plt].sh_type == SHT_RELA)
+       {
+         info[DT_RELENT]->d_un.d_val =
+           gelf_fsize (dso->elf, ELF_T_RELA, 1, EV_CURRENT);
+         info[DT_REL]->d_tag = DT_RELA;
+         info[DT_RELSZ]->d_tag = DT_RELASZ;
+         info[DT_RELENT]->d_tag = DT_RELAENT;
+         if (info_DT_RELCOUNT)
+           info_DT_RELCOUNT->d_tag = DT_RELACOUNT;
+       }
+      else if (rinfo->reldyn_rela && dso->shdr[rel ?: plt].sh_type == SHT_REL)
+       {
+         info[DT_RELAENT]->d_un.d_val =
+           gelf_fsize (dso->elf, ELF_T_REL, 1, EV_CURRENT);
+         info[DT_RELA]->d_tag = DT_REL;
+         info[DT_RELASZ]->d_tag = DT_RELSZ;
+         info[DT_RELAENT]->d_tag = DT_RELENT;
+         if (info_DT_RELACOUNT)
+           info_DT_RELACOUNT->d_tag = DT_RELCOUNT;
+       }
+    }
+
+  if (plt)
+    {
+      assert (dso->info[DT_JMPREL] != 0);
+      assert (dso->info[DT_PLTREL] == rinfo->plt_rela ? DT_RELA : DT_REL);
+
+      info[DT_JMPREL]->d_un.d_ptr = dso->shdr[plt].sh_addr;
+      if (!rinfo->plt_rela && dso->shdr[plt].sh_type == SHT_RELA)
+       {
+         info[DT_PLTREL]->d_un.d_val = DT_RELA;
+         info[DT_PLTRELSZ]->d_un.d_val = dso->shdr[plt].sh_size;
+       }
+      else if (rinfo->plt_rela && dso->shdr[plt].sh_type == SHT_REL)
+       {
+         info[DT_PLTREL]->d_un.d_val = DT_REL;
+         info[DT_PLTRELSZ]->d_un.d_val = dso->shdr[plt].sh_size;
+       }
+
+      if (!rel && !overlap)
+       {
+         int dt_REL = rinfo->reldyn_rela ? DT_RELA : DT_REL;
+
+         if (info[dt_REL] && info[dt_REL]->d_un.d_ptr)
+           info[dt_REL]->d_un.d_ptr = info[DT_JMPREL]->d_un.d_ptr;
+       }
+    }
+
+  loc = 0;
+  data = NULL;
+  while ((data = elf_getdata (scn, data)) != NULL)
+    {
+      int ndx, maxndx;
+
+      maxndx = data->d_size / dso->shdr[dynsec].sh_entsize;
+      for (ndx = 0; ndx < maxndx && loc < count; ++ndx, ++loc)
+       if ((GElf_Xword) dynamic[loc].d_tag < DT_NUM
+           || dynamic[loc].d_tag == DT_RELCOUNT
+           || dynamic[loc].d_tag == DT_RELACOUNT)
+         gelfx_update_dyn (dso->elf, data, ndx, dynamic + loc);
+      if (ndx < maxndx)
+       break;
+    }
+
+  read_dynamic (dso);
+  return 0;
+}
diff --git a/src/reloc.h b/src/reloc.h
new file mode 100644 (file)
index 0000000..a2ceff9
--- /dev/null
@@ -0,0 +1,44 @@
+/* Copyright (C) 2001, 2002 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifndef RELOC_H
+#define RELOC_H
+
+#include "prelink.h"
+
+struct reloc_info
+{
+  int first; /* First dynamic SHT_REL* section.  */
+  int last; /* Last dynamic SHT_REL* section not counting .rel*.plt.  */
+  int plt; /* .rel*.plt section.  */
+  int overlap; /* 1 if DT_REL{,A}SZ range includes DT_PLTRELSZ range.  */
+  int reldyn_rela; /* first..last sections were originally RELA.  */
+  int plt_rela; /* plt section was originally RELA.  */
+  int rel_to_rela; /* first..last sections have to be converted REL->RELA.  */
+  int rel_to_rela_plt; /* plt section has to be converted REL->RELA.  */
+  int relcount; /* DT_RELCOUNT resp. DT_RELACOUNT.  */
+};
+
+int find_reloc_sections (DSO *dso, struct reloc_info *rinfo);
+int convert_rel_to_rela (DSO *dso, int i);
+int convert_rela_to_rel (DSO *dso, int i);
+int update_dynamic_rel (DSO *dso, struct reloc_info *rinfo);
+int undo_sections (DSO *dso, int undo, struct section_move *move,
+                  struct reloc_info *rinfo, GElf_Ehdr *ehdr,
+                  GElf_Phdr *phdr, GElf_Shdr *shdr);
+
+#endif /* RELOC_H */
diff --git a/src/sha.c b/src/sha.c
new file mode 100644 (file)
index 0000000..cfbc956
--- /dev/null
+++ b/src/sha.c
@@ -0,0 +1,331 @@
+/* sha.c - Functions to compute the SHA1 hash (message-digest) of files
+   or blocks of memory.  Complies to the NIST specification FIPS-180-1.
+
+   Copyright (C) 2000, 2001, 2003 Scott G. Miller
+
+   Credits:
+      Robert Klep <robert@ilse.nl>  -- Expansion function fix
+   NOTE: The canonical source of this file is maintained in GNU coreutils.
+*/
+
+#include <sys/types.h>
+#include <stdlib.h>
+#include <string.h>
+#include <byteswap.h>
+#include "md5.h"
+#include "sha.h"
+
+/*
+  Not-swap is a macro that does an endian swap on architectures that are
+  big-endian, as SHA needs some data in a little-endian format
+*/
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+# define SWAP(n)  bswap_32 (n)
+# define NOTSWAP(n) (n)
+#else
+# define SWAP(n) (n)
+# define NOTSWAP(n) bswap_32 (n)
+#endif
+
+/* This array contains the bytes used to pad the buffer to the next
+   64-byte boundary.  (RFC 1321, 3.1: Step 1)  */
+static const unsigned char fillbuf[64] = { 0x80, 0 /* , 0, 0, ...  */ };
+
+
+/*
+  Takes a pointer to a 160 bit block of data (five 32 bit ints) and
+  intializes it to the start constants of the SHA1 algorithm.  This
+  must be called before using hash in the call to sha_hash
+*/
+void
+sha_init_ctx (struct sha_ctx *ctx)
+{
+  ctx->A = 0x67452301;
+  ctx->B = 0xefcdab89;
+  ctx->C = 0x98badcfe;
+  ctx->D = 0x10325476;
+  ctx->E = 0xc3d2e1f0;
+
+  ctx->total[0] = ctx->total[1] = 0;
+  ctx->buflen = 0;
+}
+
+/* Put result from CTX in first 20 bytes following RESBUF.  The result
+   must be in little endian byte order.
+
+   IMPORTANT: On some systems it is required that RESBUF is correctly
+   aligned for a 32 bits value.  */
+void *
+sha_read_ctx (const struct sha_ctx *ctx, void *resbuf)
+{
+  ((md5_uint32 *) resbuf)[0] = NOTSWAP (ctx->A);
+  ((md5_uint32 *) resbuf)[1] = NOTSWAP (ctx->B);
+  ((md5_uint32 *) resbuf)[2] = NOTSWAP (ctx->C);
+  ((md5_uint32 *) resbuf)[3] = NOTSWAP (ctx->D);
+  ((md5_uint32 *) resbuf)[4] = NOTSWAP (ctx->E);
+
+  return resbuf;
+}
+
+/* Process the remaining bytes in the internal buffer and the usual
+   prolog according to the standard and write the result to RESBUF.
+
+   IMPORTANT: On some systems it is required that RESBUF is correctly
+   aligned for a 32 bits value.  */
+void *
+sha_finish_ctx (struct sha_ctx *ctx, void *resbuf)
+{
+  /* Take yet unprocessed bytes into account.  */
+  md5_uint32 bytes = ctx->buflen;
+  size_t pad;
+
+  /* Now count remaining bytes.  */
+  ctx->total[0] += bytes;
+  if (ctx->total[0] < bytes)
+    ++ctx->total[1];
+
+  pad = bytes >= 56 ? 64 + 56 - bytes : 56 - bytes;
+  memcpy (&ctx->buffer[bytes], fillbuf, pad);
+
+  /* Put the 64-bit file length in *bits* at the end of the buffer.  */
+  *(md5_uint32 *) &ctx->buffer[bytes + pad + 4] = NOTSWAP (ctx->total[0] << 3);
+  *(md5_uint32 *) &ctx->buffer[bytes + pad] = NOTSWAP ((ctx->total[1] << 3) |
+                                                   (ctx->total[0] >> 29));
+
+  /* Process last bytes.  */
+  sha_process_block (ctx->buffer, bytes + pad + 8, ctx);
+
+  return sha_read_ctx (ctx, resbuf);
+}
+
+/* Compute MD5 message digest for LEN bytes beginning at BUFFER.  The
+   result is always in little endian byte order, so that a byte-wise
+   output yields to the wanted ASCII representation of the message
+   digest.  */
+void *
+sha_buffer (const char *buffer, size_t len, void *resblock)
+{
+  struct sha_ctx ctx;
+
+  /* Initialize the computation context.  */
+  sha_init_ctx (&ctx);
+
+  /* Process whole buffer but last len % 64 bytes.  */
+  sha_process_bytes (buffer, len, &ctx);
+
+  /* Put result in desired memory area.  */
+  return sha_finish_ctx (&ctx, resblock);
+}
+
+void
+sha_process_bytes (const void *buffer, size_t len, struct sha_ctx *ctx)
+{
+  /* When we already have some bits in our internal buffer concatenate
+     both inputs first.  */
+  if (ctx->buflen != 0)
+    {
+      size_t left_over = ctx->buflen;
+      size_t add = 128 - left_over > len ? len : 128 - left_over;
+
+      memcpy (&ctx->buffer[left_over], buffer, add);
+      ctx->buflen += add;
+
+      if (ctx->buflen > 64)
+       {
+         sha_process_block (ctx->buffer, ctx->buflen & ~63, ctx);
+
+         ctx->buflen &= 63;
+         /* The regions in the following copy operation cannot overlap.  */
+         memcpy (ctx->buffer, &ctx->buffer[(left_over + add) & ~63],
+                 ctx->buflen);
+       }
+
+      buffer = (const char *) buffer + add;
+      len -= add;
+    }
+
+  /* Process available complete blocks.  */
+  if (len >= 64)
+    {
+#define UNALIGNED_P(p) (((md5_uintptr) p) % __alignof__ (md5_uint32) != 0)
+      if (UNALIGNED_P (buffer))
+       while (len > 64)
+         {
+           sha_process_block (memcpy (ctx->buffer, buffer, 64), 64, ctx);
+           buffer = (const char *) buffer + 64;
+           len -= 64;
+         }
+      else
+       {
+         sha_process_block (buffer, len & ~63, ctx);
+         buffer = (const char *) buffer + (len & ~63);
+         len &= 63;
+       }
+    }
+
+  /* Move remaining bytes in internal buffer.  */
+  if (len > 0)
+    {
+      size_t left_over = ctx->buflen;
+
+      memcpy (&ctx->buffer[left_over], buffer, len);
+      left_over += len;
+      if (left_over >= 64)
+       {
+         sha_process_block (ctx->buffer, 64, ctx);
+         left_over -= 64;
+         memcpy (ctx->buffer, &ctx->buffer[64], left_over);
+       }
+      ctx->buflen = left_over;
+    }
+}
+
+/* --- Code below is the primary difference between md5.c and sha.c --- */
+
+/* SHA1 round constants */
+#define K1 0x5a827999L
+#define K2 0x6ed9eba1L
+#define K3 0x8f1bbcdcL
+#define K4 0xca62c1d6L
+
+/* Round functions.  Note that F2 is the same as F4.  */
+#define F1(B,C,D) ( D ^ ( B & ( C ^ D ) ) )
+#define F2(B,C,D) (B ^ C ^ D)
+#define F3(B,C,D) ( ( B & C ) | ( D & ( B | C ) ) )
+#define F4(B,C,D) (B ^ C ^ D)
+
+/* Process LEN bytes of BUFFER, accumulating context into CTX.
+   It is assumed that LEN % 64 == 0.
+   Most of this code comes from GnuPG's cipher/sha1.c.  */
+
+void
+sha_process_block (const void *buffer, size_t len, struct sha_ctx *ctx)
+{
+  const md5_uint32 *words = buffer;
+  size_t nwords = len / sizeof (md5_uint32);
+  const md5_uint32 *endp = words + nwords;
+  md5_uint32 x[16];
+  md5_uint32 a = ctx->A;
+  md5_uint32 b = ctx->B;
+  md5_uint32 c = ctx->C;
+  md5_uint32 d = ctx->D;
+  md5_uint32 e = ctx->E;
+
+  /* First increment the byte count.  RFC 1321 specifies the possible
+     length of the file up to 2^64 bits.  Here we only compute the
+     number of bytes.  Do a double word increment.  */
+  ctx->total[0] += len;
+  if (ctx->total[0] < len)
+    ++ctx->total[1];
+
+#define M(I) ( tm =   x[I&0x0f] ^ x[(I-14)&0x0f] \
+                   ^ x[(I-8)&0x0f] ^ x[(I-3)&0x0f] \
+              , (x[I&0x0f] = rol(tm, 1)) )
+
+#define R(A,B,C,D,E,F,K,M)  do { E += rol( A, 5 )     \
+                                     + F( B, C, D )  \
+                                     + K             \
+                                     + M;            \
+                                B = rol( B, 30 );    \
+                              } while(0)
+
+  while (words < endp)
+    {
+      md5_uint32 tm;
+      int t;
+      /* FIXME: see sha1.c for a better implementation.  */
+      for (t = 0; t < 16; t++)
+       {
+         x[t] = NOTSWAP (*words);
+         words++;
+       }
+
+      R( a, b, c, d, e, F1, K1, x[ 0] );
+      R( e, a, b, c, d, F1, K1, x[ 1] );
+      R( d, e, a, b, c, F1, K1, x[ 2] );
+      R( c, d, e, a, b, F1, K1, x[ 3] );
+      R( b, c, d, e, a, F1, K1, x[ 4] );
+      R( a, b, c, d, e, F1, K1, x[ 5] );
+      R( e, a, b, c, d, F1, K1, x[ 6] );
+      R( d, e, a, b, c, F1, K1, x[ 7] );
+      R( c, d, e, a, b, F1, K1, x[ 8] );
+      R( b, c, d, e, a, F1, K1, x[ 9] );
+      R( a, b, c, d, e, F1, K1, x[10] );
+      R( e, a, b, c, d, F1, K1, x[11] );
+      R( d, e, a, b, c, F1, K1, x[12] );
+      R( c, d, e, a, b, F1, K1, x[13] );
+      R( b, c, d, e, a, F1, K1, x[14] );
+      R( a, b, c, d, e, F1, K1, x[15] );
+      R( e, a, b, c, d, F1, K1, M(16) );
+      R( d, e, a, b, c, F1, K1, M(17) );
+      R( c, d, e, a, b, F1, K1, M(18) );
+      R( b, c, d, e, a, F1, K1, M(19) );
+      R( a, b, c, d, e, F2, K2, M(20) );
+      R( e, a, b, c, d, F2, K2, M(21) );
+      R( d, e, a, b, c, F2, K2, M(22) );
+      R( c, d, e, a, b, F2, K2, M(23) );
+      R( b, c, d, e, a, F2, K2, M(24) );
+      R( a, b, c, d, e, F2, K2, M(25) );
+      R( e, a, b, c, d, F2, K2, M(26) );
+      R( d, e, a, b, c, F2, K2, M(27) );
+      R( c, d, e, a, b, F2, K2, M(28) );
+      R( b, c, d, e, a, F2, K2, M(29) );
+      R( a, b, c, d, e, F2, K2, M(30) );
+      R( e, a, b, c, d, F2, K2, M(31) );
+      R( d, e, a, b, c, F2, K2, M(32) );
+      R( c, d, e, a, b, F2, K2, M(33) );
+      R( b, c, d, e, a, F2, K2, M(34) );
+      R( a, b, c, d, e, F2, K2, M(35) );
+      R( e, a, b, c, d, F2, K2, M(36) );
+      R( d, e, a, b, c, F2, K2, M(37) );
+      R( c, d, e, a, b, F2, K2, M(38) );
+      R( b, c, d, e, a, F2, K2, M(39) );
+      R( a, b, c, d, e, F3, K3, M(40) );
+      R( e, a, b, c, d, F3, K3, M(41) );
+      R( d, e, a, b, c, F3, K3, M(42) );
+      R( c, d, e, a, b, F3, K3, M(43) );
+      R( b, c, d, e, a, F3, K3, M(44) );
+      R( a, b, c, d, e, F3, K3, M(45) );
+      R( e, a, b, c, d, F3, K3, M(46) );
+      R( d, e, a, b, c, F3, K3, M(47) );
+      R( c, d, e, a, b, F3, K3, M(48) );
+      R( b, c, d, e, a, F3, K3, M(49) );
+      R( a, b, c, d, e, F3, K3, M(50) );
+      R( e, a, b, c, d, F3, K3, M(51) );
+      R( d, e, a, b, c, F3, K3, M(52) );
+      R( c, d, e, a, b, F3, K3, M(53) );
+      R( b, c, d, e, a, F3, K3, M(54) );
+      R( a, b, c, d, e, F3, K3, M(55) );
+      R( e, a, b, c, d, F3, K3, M(56) );
+      R( d, e, a, b, c, F3, K3, M(57) );
+      R( c, d, e, a, b, F3, K3, M(58) );
+      R( b, c, d, e, a, F3, K3, M(59) );
+      R( a, b, c, d, e, F4, K4, M(60) );
+      R( e, a, b, c, d, F4, K4, M(61) );
+      R( d, e, a, b, c, F4, K4, M(62) );
+      R( c, d, e, a, b, F4, K4, M(63) );
+      R( b, c, d, e, a, F4, K4, M(64) );
+      R( a, b, c, d, e, F4, K4, M(65) );
+      R( e, a, b, c, d, F4, K4, M(66) );
+      R( d, e, a, b, c, F4, K4, M(67) );
+      R( c, d, e, a, b, F4, K4, M(68) );
+      R( b, c, d, e, a, F4, K4, M(69) );
+      R( a, b, c, d, e, F4, K4, M(70) );
+      R( e, a, b, c, d, F4, K4, M(71) );
+      R( d, e, a, b, c, F4, K4, M(72) );
+      R( c, d, e, a, b, F4, K4, M(73) );
+      R( b, c, d, e, a, F4, K4, M(74) );
+      R( a, b, c, d, e, F4, K4, M(75) );
+      R( e, a, b, c, d, F4, K4, M(76) );
+      R( d, e, a, b, c, F4, K4, M(77) );
+      R( c, d, e, a, b, F4, K4, M(78) );
+      R( b, c, d, e, a, F4, K4, M(79) );
+
+      a = ctx->A += a;
+      b = ctx->B += b;
+      c = ctx->C += c;
+      d = ctx->D += d;
+      e = ctx->E += e;
+    }
+}
diff --git a/src/sha.h b/src/sha.h
new file mode 100644 (file)
index 0000000..13583e3
--- /dev/null
+++ b/src/sha.h
@@ -0,0 +1,69 @@
+/* sha.h - Declaration of functions and datatypes for SHA1 sum computing
+   library functions.
+
+   Copyright (C) 1999, Scott G. Miller
+*/
+
+#ifndef _SHA_H
+# define _SHA_H 1
+
+# include "md5.h"
+
+/* Structure to save state of computation between the single steps.  */
+struct sha_ctx
+{
+  md5_uint32 A;
+  md5_uint32 B;
+  md5_uint32 C;
+  md5_uint32 D;
+  md5_uint32 E;
+
+  md5_uint32 total[2];
+  md5_uint32 buflen;
+  char buffer[128];
+};
+
+
+/* Starting with the result of former calls of this function (or the
+   initialization function update the context for the next LEN bytes
+   starting at BUFFER.
+   It is necessary that LEN is a multiple of 64!!! */
+extern void sha_process_block (const void *buffer, size_t len,
+                              struct sha_ctx *ctx);
+
+/* Starting with the result of former calls of this function (or the
+   initialization function update the context for the next LEN bytes
+   starting at BUFFER.
+   It is NOT required that LEN is a multiple of 64.  */
+extern void sha_process_bytes (const void *buffer, size_t len,
+                              struct sha_ctx *ctx);
+
+/* Initialize structure containing state of computation. */
+extern void sha_init_ctx (struct sha_ctx *ctx);
+
+/* Process the remaining bytes in the buffer and put result from CTX
+   in first 16 bytes following RESBUF.  The result is always in little
+   endian byte order, so that a byte-wise output yields to the wanted
+   ASCII representation of the message digest.
+
+   IMPORTANT: On some systems it is required that RESBUF is correctly
+   aligned for a 32 bits value.  */
+extern void *sha_finish_ctx (struct sha_ctx *ctx, void *resbuf);
+
+
+/* Put result from CTX in first 16 bytes following RESBUF.  The result is
+   always in little endian byte order, so that a byte-wise output yields
+   to the wanted ASCII representation of the message digest.
+
+   IMPORTANT: On some systems it is required that RESBUF is correctly
+   aligned for a 32 bits value.  */
+extern void *sha_read_ctx (const struct sha_ctx *ctx, void *resbuf);
+
+
+/* Compute MD5 message digest for LEN bytes beginning at BUFFER.  The
+   result is always in little endian byte order, so that a byte-wise
+   output yields to the wanted ASCII representation of the message
+   digest.  */
+extern void *sha_buffer (const char *buffer, size_t len, void *resblock);
+
+#endif
diff --git a/src/space.c b/src/space.c
new file mode 100644 (file)
index 0000000..f92348e
--- /dev/null
@@ -0,0 +1,754 @@
+/* Copyright (C) 2001, 2002, 2003, 2004, 2006, 2007 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include "prelink.h"
+#include "reloc.h"
+#include "space.h"
+
+#define DEBUG_SECTIONS
+
+#ifdef DEBUG_SECTIONS
+void
+print_sections (DSO *dso, GElf_Ehdr *ehdr, GElf_Shdr *shdr)
+{
+  int elf64 = ehdr->e_ident[EI_CLASS] == ELFCLASS64;
+  int i, j, shf, flag;
+  char buf[32], *q;
+  const char *p;
+  static struct { int sh_type; const char *type_name; } types[] =
+    {
+      { SHT_NULL, "NULL" },
+      { SHT_PROGBITS, "PROGBITS" },
+      { SHT_SYMTAB, "SYMTAB" },
+      { SHT_STRTAB, "STRTAB" },
+      { SHT_RELA, "RELA" },
+      { SHT_HASH, "HASH" },
+      { SHT_DYNAMIC, "DYNAMIC" },
+      { SHT_NOTE, "NOTE" },
+      { SHT_NOBITS, "NOBITS" },
+      { SHT_REL, "REL" },
+      { SHT_SHLIB, "SHLIB" },
+      { SHT_DYNSYM, "DYNSYM" },
+      { SHT_INIT_ARRAY, "INIT_ARRAY" },
+      { SHT_FINI_ARRAY, "FINI_ARRAY" },
+      { SHT_PREINIT_ARRAY, "PREINIT_ARRAY" },
+      { SHT_GROUP, "GROUP" },
+      { SHT_SYMTAB_SHNDX, "SYMTAB SECTION INDICIES" },
+      { SHT_GNU_verdef, "VERDEF" },
+      { SHT_GNU_verneed, "VERNEED" },
+      { SHT_GNU_versym, "VERSYM" },
+      { SHT_GNU_LIBLIST, "LIBLIST" },
+      { SHT_GNU_HASH, "GNU_HASH" },
+      { 0, NULL }
+    };
+
+  if (elf64)
+    printf ("  [Nr] Name              Type            Address          Off    Size   ES Flg Lk Inf Al\n");
+  else
+    printf ("  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al\n");
+  for (i = 0; i < ehdr->e_shnum; ++i)
+    {
+      p = NULL;
+      for (j = 0; types[j].type_name; ++j)
+       if (types[j].sh_type == shdr[i].sh_type)
+         {
+           p = types[j].type_name;
+           break;
+         }
+
+      if (p == NULL)
+       {
+         if (shdr[i].sh_type >= SHT_LOPROC && shdr[i].sh_type <= SHT_HIPROC)
+           sprintf (buf, "LOPROC+%x", shdr[i].sh_type - SHT_LOPROC);
+         else if (shdr[i].sh_type >= SHT_LOOS && shdr[i].sh_type <= SHT_HIOS)
+           sprintf (buf, "LOOS+%x", shdr[i].sh_type - SHT_LOOS);
+         else if (shdr[i].sh_type >= SHT_LOUSER && shdr[i].sh_type <= SHT_HIUSER)
+           sprintf (buf, "LOUSER+%x", shdr[i].sh_type - SHT_LOUSER);
+         else
+           sprintf (buf, "Unknown: %x", shdr[i].sh_type);
+         p = buf;
+       }
+
+      printf ("  [%2d] %-17.17s %-15.15s ", i,
+             strptr (dso, ehdr->e_shstrndx, shdr[i].sh_name), p);
+
+      q = buf;
+      shf = shdr[i].sh_flags;
+      while (shf)
+       {
+         flag = shf & -shf;
+         shf &= ~flag;
+         switch (flag)
+           {
+           case SHF_WRITE:             *q++ = 'W'; break;
+           case SHF_ALLOC:             *q++ = 'A'; break;
+           case SHF_EXECINSTR:         *q++ = 'X'; break;
+           case SHF_MERGE:             *q++ = 'M'; break;
+           case SHF_STRINGS:           *q++ = 'S'; break;
+           case SHF_INFO_LINK:         *q++ = 'I'; break;
+           case SHF_LINK_ORDER:        *q++ = 'L'; break;
+           case SHF_OS_NONCONFORMING:  *q++ = 'O'; break;
+           case SHF_TLS:               *q++ = 'T'; break;
+           default:
+             if (flag & SHF_MASKOS)
+               *q++ = 'o', shf &= ~SHF_MASKOS;
+             else if (flag & SHF_MASKPROC)
+               *q++ = 'p', shf &= ~SHF_MASKPROC;
+             else
+               *q++ = 'x';
+             break;
+           }
+       }
+      *q = '\0';
+      if (elf64)
+       printf (" %16.16llx %6.6llx %6.6llx %2.2lx %3s %2ld %3lx %2ld\n",
+               (long long) shdr[i].sh_addr, (long long) shdr[i].sh_offset,
+               (long long) shdr[i].sh_size, (long) shdr[i].sh_entsize,
+               buf, (long) shdr[i].sh_link, (long) shdr[i].sh_info,
+               (long) shdr[i].sh_addralign);
+      else
+       printf (" %8.8lx %6.6lx %6.6lx %2.2lx %3s %2ld %3lx %2ld\n",
+               (long) shdr[i].sh_addr, (long) shdr[i].sh_offset,
+               (long) shdr[i].sh_size, (long) shdr[i].sh_entsize,
+               buf, (long) shdr[i].sh_link, (long) shdr[i].sh_info,
+               (long) shdr[i].sh_addralign);
+    }
+}
+#endif
+
+void
+insert_readonly_section (GElf_Ehdr *ehdr, GElf_Shdr *shdr, int n,
+                        struct readonly_adjust *adjust)
+{
+  int i;
+
+  memmove (&shdr[n + 1], &shdr[n],
+          (ehdr->e_shnum - n) * sizeof (GElf_Shdr));
+  ++ehdr->e_shnum;
+  for (i = 0; i < adjust->newcount; ++i)
+    if (adjust->new[i] >= n)
+      ++adjust->new[i];
+}
+
+int
+remove_readonly_section (GElf_Ehdr *ehdr, GElf_Shdr *shdr, int n,
+                        struct readonly_adjust *adjust)
+{
+  int i, ret = -1;
+
+  memmove (&shdr[n], &shdr[n + 1],
+          (ehdr->e_shnum - n) * sizeof (GElf_Shdr));
+  --ehdr->e_shnum;
+  for (i = 0; i < adjust->newcount; ++i)
+    if (adjust->new[i] > n)
+      --adjust->new[i];
+    else if (adjust->new[i] == n)
+      {
+       adjust->new[i] = -1;
+       ret = i;
+      }
+
+  return ret;
+}
+
+static inline int
+readonly_is_movable (DSO *dso, GElf_Ehdr *ehdr, GElf_Shdr *shdr, int k)
+{
+  if (! (shdr[k].sh_flags & (SHF_ALLOC | SHF_WRITE)))
+    return 0;
+
+  switch (shdr[k].sh_type)
+    {
+    case SHT_HASH:
+    case SHT_GNU_HASH:
+    case SHT_DYNSYM:
+    case SHT_REL:
+    case SHT_RELA:
+    case SHT_STRTAB:
+    case SHT_NOTE:
+    case SHT_GNU_verdef:
+    case SHT_GNU_verneed:
+    case SHT_GNU_versym:
+    case SHT_GNU_LIBLIST:
+      return 1;
+    default:
+      if (strcmp (strptr (dso, ehdr->e_shstrndx,
+                         shdr[k].sh_name), ".interp") == 0)
+       return 1;
+      return 0;
+    }
+}
+
+int
+find_readonly_space (DSO *dso, GElf_Shdr *add, GElf_Ehdr *ehdr,
+                    GElf_Phdr *phdr, GElf_Shdr *shdr,
+                    struct readonly_adjust *adjust)
+{
+  int i, j;
+  GElf_Addr addr;
+  GElf_Off p_filesz;
+
+  if (add->sh_addr)
+    {
+      /* Prefer the current address if possible.  */
+      for (i = 0; i < ehdr->e_phnum; ++i)
+       if (phdr[i].p_type == PT_LOAD
+           && (phdr[i].p_flags & (PF_R | PF_W)) == PF_R
+           && phdr[i].p_vaddr <= add->sh_addr
+           && phdr[i].p_vaddr + phdr[i].p_filesz
+              >= add->sh_addr + add->sh_size)
+         break;
+
+      if (i < ehdr->e_phnum)
+       for (j = 1; j < ehdr->e_shnum; ++j)
+         if ((shdr[j].sh_flags & SHF_ALLOC)
+             && shdr[j].sh_addr >= add->sh_addr)
+           {
+             if (shdr[j].sh_addr >= add->sh_addr + add->sh_size
+                 && shdr[j - 1].sh_addr + shdr[j - 1].sh_size <= add->sh_addr)
+               {
+                 insert_readonly_section (ehdr, shdr, j, adjust);
+                 shdr[j] = *add;
+                 shdr[j].sh_offset = (shdr[j].sh_addr - phdr[i].p_vaddr)
+                                      + phdr[i].p_offset;
+                 return j;
+               }
+             break;
+           }
+    }
+
+  for (i = 0; i < ehdr->e_phnum; ++i)
+    if (phdr[i].p_type == PT_LOAD
+       && (phdr[i].p_flags & (PF_R | PF_W)) == PF_R)
+      {
+       GElf_Addr start = phdr[i].p_vaddr;
+       int after = -1, min;
+
+       if (phdr[i].p_offset < ehdr->e_phoff)
+         {
+           for (j = 0; j < ehdr->e_phnum; j++)
+             if (phdr[j].p_type == PT_PHDR
+                 && phdr[j].p_offset == ehdr->e_phoff
+                 && phdr[j].p_filesz >= ehdr->e_phnum * ehdr->e_phentsize)
+               break;
+           start += ehdr->e_phoff;
+           if (j < ehdr->e_phnum)
+             start += phdr[j].p_filesz;
+           else
+             start += ehdr->e_phnum * ehdr->e_phentsize;
+           start -= phdr[i].p_offset;
+         }
+       start = (start + add->sh_addralign - 1) & ~(add->sh_addralign - 1);
+       for (j = 1; j < ehdr->e_shnum; ++j)
+         if ((shdr[j].sh_flags & SHF_ALLOC)
+             && shdr[j].sh_addr >= phdr[i].p_vaddr
+             && shdr[j].sh_addr + shdr[j].sh_size
+                <= phdr[i].p_vaddr + phdr[i].p_filesz)
+           {
+             if (after == -1)
+               after = j - 1;
+             if (start + add->sh_size > shdr[j].sh_addr)
+               {
+                 start = shdr[j].sh_addr + shdr[j].sh_size;
+                 start = (start + add->sh_addralign - 1)
+                         & ~(add->sh_addralign - 1);
+                 after = j;
+               }
+           }
+
+       min = -1;
+       for (j = i + 1; j < ehdr->e_phnum; ++j)
+         if (phdr[j].p_offset >= phdr[i].p_offset + phdr[i].p_filesz
+             && (min == -1 || phdr[min].p_offset > phdr[j].p_offset))
+           min = j;
+
+       if (after != -1
+           && (start + add->sh_size <= phdr[i].p_vaddr + phdr[i].p_filesz
+               || (phdr[i].p_filesz == phdr[i].p_memsz
+                   && (min == -1
+                       || start + add->sh_size - phdr[i].p_vaddr
+                          <= phdr[min].p_offset))))
+         {
+           insert_readonly_section (ehdr, shdr, after + 1, adjust);
+           shdr[after + 1] = *add;
+           shdr[after + 1].sh_addr = start;
+           shdr[after + 1].sh_offset = (start - phdr[i].p_vaddr)
+                                        + phdr[i].p_offset;
+           if (start + add->sh_size > phdr[i].p_vaddr + phdr[i].p_filesz)
+             {
+               adjust_nonalloc (dso, ehdr, shdr, 0, 0,
+                                start + add->sh_size - phdr[i].p_vaddr
+                                - phdr[i].p_filesz);
+               phdr[i].p_filesz = start + add->sh_size - phdr[i].p_vaddr;
+               phdr[i].p_memsz = phdr[i].p_filesz;
+             }
+           return after + 1;
+         }
+      }
+
+  /* If SHT_NOBITS sections are small, just extend the last PT_LOAD
+     segment.  Small enough here means that the whole .bss fits into
+     the same CPU page as the alloced part of it.  */
+  for (i = -1, j = 0; j < ehdr->e_phnum; ++j)
+    if (phdr[j].p_type == PT_LOAD)
+      i = j;
+  p_filesz = phdr[i].p_filesz;
+
+  /* If we'll be converting NOBITS .plt to PROGBITS, account for that in the
+     calculation.  */
+  for (j = 1; j < ehdr->e_shnum; ++j)
+    {
+      if (shdr[j].sh_type == SHT_NOBITS
+         && shdr[j].sh_addr >= phdr[i].p_vaddr
+         && shdr[j].sh_addr + shdr[j].sh_size
+            <= phdr[i].p_vaddr + phdr[i].p_memsz
+         && !strcmp (strptr (dso, ehdr->e_shstrndx, shdr[j].sh_name), ".plt"))
+       {
+         if (shdr[j].sh_addr + shdr[j].sh_size - phdr[i].p_vaddr > p_filesz)
+           p_filesz = shdr[j].sh_addr + shdr[j].sh_size - phdr[i].p_vaddr;
+         break;
+       }
+    }
+
+  if (phdr[i].p_filesz
+      && p_filesz <= phdr[i].p_memsz
+      && !(((phdr[i].p_vaddr + phdr[i].p_memsz - 1)
+           ^ (phdr[i].p_vaddr + p_filesz - 1)) & ~(dso->arch->page_size - 1)))
+    {
+      for (j = 1; j < ehdr->e_shnum; ++j)
+       {
+         if (!(shdr[j].sh_flags & (SHF_ALLOC | SHF_WRITE | SHF_ALLOC)))
+           break;
+         if (shdr[j].sh_type == SHT_NOBITS
+             && (shdr[j].sh_flags & SHF_TLS) == 0
+             && shdr[j].sh_addr >= phdr[i].p_vaddr)
+           shdr[j].sh_type = SHT_PROGBITS;
+       }
+
+      insert_readonly_section (ehdr, shdr, j, adjust);
+      shdr[j] = *add;
+      shdr[j].sh_addr = (shdr[j - 1].sh_addr + shdr[j - 1].sh_size
+                        + add->sh_addralign - 1) & ~(add->sh_addralign - 1);
+      shdr[j].sh_offset = (shdr[j].sh_addr - phdr[i].p_vaddr)
+                         + phdr[i].p_offset;
+      phdr[i].p_filesz = shdr[j].sh_addr + add->sh_size - phdr[i].p_vaddr;
+      phdr[i].p_memsz = phdr[i].p_filesz;
+      adjust_nonalloc (dso, ehdr, shdr, 0, 0, phdr[i].p_offset
+                      + phdr[i].p_filesz - shdr[j + 1].sh_offset);
+      return j;
+    }
+
+  /* See if we can decrease binary's base VMA and thus gain space.
+     This trick is mainly useful for IA-32.  */
+  for (i = 0; i < ehdr->e_phnum; ++i)
+    if (phdr[i].p_type == PT_LOAD)
+      break;
+
+  addr = (add->sh_size + add->sh_addralign - 1 + phdr[i].p_align - 1)
+        & ~(phdr[i].p_align - 1);
+  if (phdr[i].p_align <= dso->arch->page_size
+      && phdr[i].p_flags == (PF_R | PF_X)
+      && phdr[i].p_filesz == phdr[i].p_memsz
+      && phdr[i].p_vaddr - addr
+      && ! (((phdr[i].p_vaddr - addr) ^ phdr[i].p_vaddr)
+           & ~(phdr[i].p_align * 256 - 1)))
+    {
+      int moveend;
+      if (! adjust->basemove_end)
+       {
+         for (moveend = 1; moveend < ehdr->e_shnum; ++moveend)
+           if (strcmp (strptr (dso, ehdr->e_shstrndx,
+                               shdr[moveend].sh_name), ".interp")
+               && shdr[moveend].sh_type != SHT_NOTE)
+             break;
+         if (moveend < ehdr->e_shnum && moveend > 1)
+           {
+             adjust->basemove_end = shdr[moveend].sh_addr;
+             adjust->moveend = moveend;
+           }
+       }
+      else
+       moveend = adjust->moveend;
+      if (moveend < ehdr->e_shnum && moveend > 1
+         && (shdr[moveend].sh_flags & (SHF_ALLOC | SHF_WRITE)))
+       {
+         int k = moveend;
+         GElf_Addr adj = addr;
+
+         if (add->sh_addr && ! adjust->move2
+             && phdr[i].p_vaddr <= add->sh_addr
+             && phdr[i].p_vaddr + phdr[i].p_filesz > add->sh_addr)
+           {
+             for (k = moveend; k < ehdr->e_shnum; ++k)
+               {
+                 if (! (shdr[k].sh_flags & (SHF_ALLOC | SHF_WRITE)))
+                   {
+                     k = ehdr->e_shnum;
+                     break;
+                   }
+
+                 if (shdr[k].sh_addr > add->sh_addr)
+                   {
+                     /* Don't allow inserting in between reloc sections
+                        if they are adjacent.  Similarly for adjacent
+                        note sections.  */
+                     int sh_type1 = (shdr[k - 1].sh_type == SHT_RELA)
+                                    ? SHT_REL : shdr[k - 1].sh_type;
+                     int sh_type2 = (shdr[k].sh_type == SHT_RELA)
+                                    ? SHT_REL : shdr[k].sh_type;
+
+                     if (sh_type1 != sh_type2)
+                       break;
+
+                     if (sh_type1 != SHT_REL && sh_type1 != SHT_NOTE)
+                       break;
+                     if ((shdr[k - 1].sh_addr
+                          + ((shdr[k - 1].sh_size + 3) & -4))
+                         != shdr[k].sh_addr)
+                       break;
+                   }
+
+                 if (! readonly_is_movable (dso, ehdr, shdr, k))
+                   {
+                     k = ehdr->e_shnum;
+                     break;
+                   }
+               }
+
+             if (k < ehdr->e_shnum)
+               {
+                 GElf_Addr a;
+
+                 a = shdr[k].sh_addr;
+                 a -= shdr[k - 1].sh_addr + shdr[k - 1].sh_size;
+                 assert (add->sh_addralign <= phdr[i].p_align);
+                 assert (add->sh_size > a);
+                 a = (add->sh_size - a + phdr[i].p_align - 1)
+                     & ~(phdr[i].p_align - 1);
+                 if (a < adj)
+                   {
+                     adjust->move2 = 1;
+                     adj = a;
+                   }
+                 else
+                   k = moveend;
+               }
+             else
+               k = moveend;
+           }
+
+         for (j = 1; j < k; ++j)
+           shdr[j].sh_addr -= adj;
+         phdr[i].p_vaddr -= adj;
+         phdr[i].p_paddr -= adj;
+         phdr[i].p_filesz += adj;
+         phdr[i].p_memsz += adj;
+         for (j = 0; j < ehdr->e_phnum; ++j)
+           {
+             if (j == i)
+               continue;
+             /* Leave STACK segment alone, it has p_vaddr == p_paddr == 0
+                and p_offset == p_filesz == p_memsz == 0.  */
+             if (phdr[j].p_type == PT_GNU_STACK)
+               continue;
+             if (phdr[j].p_vaddr
+                 < adjust->basemove_end - adjust->basemove_adjust)
+               {
+                 phdr[j].p_vaddr -= adj;
+                 phdr[j].p_paddr -= adj;
+               }
+             else
+               phdr[j].p_offset += adj;
+           }
+         adjust->basemove_adjust += adj;
+         insert_readonly_section (ehdr, shdr, k, adjust);
+         shdr[k] = *add;
+         if (k == moveend)
+           {
+             addr = shdr[k - 1].sh_addr + shdr[k - 1].sh_size;
+             addr = (addr + add->sh_addralign - 1) & ~(add->sh_addralign - 1);
+           }
+         else
+           {
+             addr = (shdr[k + 1].sh_addr - add->sh_size)
+                    & ~(add->sh_addralign - 1);
+           }
+
+         shdr[k].sh_addr = addr;
+         shdr[k].sh_offset = (addr - phdr[i].p_vaddr) + phdr[i].p_offset;
+         adjust_nonalloc (dso, ehdr, shdr, 0, 0, adj);
+         return k;
+       }
+    }
+
+  /* We have to create new PT_LOAD if at all possible.  */
+  addr = ehdr->e_phoff + (ehdr->e_phnum + 1) * ehdr->e_phentsize;
+  for (j = 1; j < ehdr->e_shnum; ++j)
+    {
+      if (addr > shdr[j].sh_offset)
+       {
+         GElf_Addr start, addstart, endaddr, *old_addr;
+         GElf_Addr minsize = ~(GElf_Addr) 0;
+         int movesec = -1, last, k, e;
+
+         if (ehdr->e_phoff < phdr[i].p_offset
+             || ehdr->e_phoff + (ehdr->e_phnum + 1) * ehdr->e_phentsize
+                > phdr[i].p_offset + phdr[i].p_filesz
+             || ! readonly_is_movable (dso, ehdr, shdr, j)
+             || shdr[j].sh_addr >= phdr[i].p_vaddr + phdr[i].p_filesz)
+           {
+             error (0, 0, "%s: No space in ELF segment table to add new ELF segment",
+                    dso->filename);
+             return 0;
+           }
+
+         start = phdr[i].p_vaddr - phdr[i].p_offset + ehdr->e_phoff
+                 + (ehdr->e_phnum + 1) * ehdr->e_phentsize;
+         for (last = 1; last < ehdr->e_shnum; ++last)
+           if (! readonly_is_movable (dso, ehdr, shdr, last)
+               || shdr[last].sh_addr >= phdr[i].p_vaddr + phdr[i].p_filesz)
+             break;
+         for (j = 1; j < last; ++j)
+           {
+             addstart = (start + add->sh_addralign - 1)
+                        & ~(add->sh_addralign - 1);
+             start = (start + shdr[j].sh_addralign - 1)
+                     & ~(shdr[j].sh_addralign - 1);
+             endaddr = -1;
+             if (j + 1 < ehdr->e_shnum)
+               endaddr = shdr[j + 1].sh_addr;
+             if (phdr[i].p_vaddr + phdr[i].p_filesz < endaddr)
+               endaddr = phdr[i].p_vaddr + phdr[i].p_filesz;
+
+             switch (shdr[j].sh_type)
+               {
+               case SHT_HASH:
+               case SHT_GNU_HASH:
+               case SHT_DYNSYM:
+               case SHT_STRTAB:
+               case SHT_GNU_verdef:
+               case SHT_GNU_verneed:
+               case SHT_GNU_versym:
+               case SHT_GNU_LIBLIST:
+                 if (endaddr >= start
+                     && endaddr - start < minsize)
+                   {
+                     minsize = endaddr - start;
+                     movesec = j;
+                   }
+                 if (endaddr > addstart
+                     && endaddr - addstart > add->sh_size
+                     && endaddr - addstart - add->sh_size
+                        < minsize)
+                   {
+                     minsize = endaddr - addstart - add->sh_size;
+                     movesec = j;
+                   }
+                 break;
+               case SHT_REL:
+               case SHT_RELA:
+               case SHT_NOTE:
+                   /* Don't allow inserting in between reloc sections
+                      if they are adjacent.  Similarly for adjacent
+                      note sections.  */
+                   if (j + 1 < ehdr->e_shnum)
+                     {
+                       if (shdr[j].sh_type == SHT_NOTE)
+                         {
+                           if (shdr[j + 1].sh_type != SHT_NOTE)
+                             break;
+                         }
+                       else if (shdr[j + 1].sh_type != SHT_REL
+                                && shdr[j + 1].sh_type != SHT_RELA)
+                         {
+                           break;
+                         }
+
+                       if ((shdr[j].sh_addr
+                            + ((shdr[j].sh_size + 3) & -4))
+                           != shdr[j + 1].sh_addr)
+                         break;
+
+                       start += shdr[j].sh_size;
+                       continue;
+                     }
+                   break;
+               }
+
+             if (start + shdr[j].sh_size <= endaddr)
+               {
+                 movesec = j + 1;
+                 break;
+               }
+             start += shdr[j].sh_size;
+           }
+
+         if (movesec == -1)
+           {
+             error (0, 0, "%s: No space in ELF segment table to add new ELF segment",
+                    dso->filename);
+             return 0;
+           }
+
+         start = phdr[i].p_vaddr - phdr[i].p_offset + ehdr->e_phoff
+                 + (ehdr->e_phnum + 1) * ehdr->e_phentsize;
+         old_addr = (GElf_Addr *) alloca (movesec * sizeof (GElf_Addr));
+         for (k = 1; k < movesec; ++k)
+           {
+             start = (start + shdr[k].sh_addralign - 1)
+                     & ~(shdr[k].sh_addralign - 1);
+             old_addr[k] = shdr[k].sh_addr;
+             shdr[k].sh_addr = start;
+             shdr[k].sh_offset = start + phdr[i].p_offset
+                                 - phdr[i].p_vaddr;
+             start += shdr[k].sh_size;
+           }
+
+         for (e = 0; e < ehdr->e_phnum; ++e)
+           if (phdr[e].p_type != PT_LOAD
+               && phdr[e].p_type != PT_GNU_STACK)
+             for (k = 1; k < movesec; ++k)
+               if (old_addr[k] == phdr[e].p_vaddr)
+                 {
+                   if (phdr[e].p_filesz != shdr[k].sh_size
+                       || phdr[e].p_memsz != shdr[k].sh_size)
+                     {
+                       int k1 = -1;
+                       if (phdr[e].p_type == PT_NOTE
+                           && shdr[k].sh_type == SHT_NOTE
+                           && phdr[e].p_filesz == phdr[e].p_memsz)
+                         {
+                           k1 = k;
+                           while (k1 < movesec)
+                             {
+                               if (shdr[k1].sh_type != SHT_NOTE
+                                   || shdr[k1].sh_addr - old_addr[k1]
+                                      != shdr[k].sh_addr - old_addr[k]
+                                   || old_addr[k1] + shdr[k1].sh_size
+                                      > phdr[e].p_vaddr + phdr[e].p_filesz)
+                                 {
+                                   k1 = -1;
+                                   break;
+                                 }
+                               if (old_addr[k1] + shdr[k1].sh_size
+                                   == phdr[e].p_vaddr + phdr[e].p_filesz)
+                                 break;
+                               ++k1;
+                             }
+                           if (k1 == movesec)
+                             k1 = -1;
+                         }
+                       if (k1 == -1)
+                         {
+                           error (0, 0, "%s: Non-PT_LOAD segment spanning more than one section",
+                                  dso->filename);
+                           return 0;
+                         }
+                     }
+                   phdr[e].p_vaddr += shdr[k].sh_addr - old_addr[k];
+                   phdr[e].p_paddr += shdr[k].sh_addr - old_addr[k];
+                   phdr[e].p_offset += shdr[k].sh_addr - old_addr[k];
+                   break;
+                 }
+
+         if (j < last)
+           /* Now continue as if there was place for a new PT_LOAD
+              in ElfW(Phdr) table initially.  */
+           break;
+         else
+           {
+             GElf_Shdr moveshdr;
+             int newidx, ret, movedidx, oldidx;
+
+             moveshdr = shdr[movesec];
+             newidx = remove_readonly_section (ehdr, shdr, movesec, adjust);
+             oldidx = adjust->move->new_to_old[movesec];
+             remove_section (adjust->move, movesec);
+             ret = find_readonly_space (dso, add, ehdr, phdr, shdr, adjust);
+             if (ret == 0)
+               return 0;
+             movedidx = find_readonly_space (dso, &moveshdr, ehdr, phdr,
+                                             shdr, adjust);
+             if (movedidx == 0)
+               return 0;
+             if (newidx != -1)
+               adjust->new[newidx] = movedidx;
+             add_section (adjust->move, movedidx);
+             if (oldidx != -1)
+               {
+                 adjust->move->old_to_new[oldidx] = movedidx;
+                 adjust->move->new_to_old[movedidx] = oldidx;
+               }
+             if (movedidx <= ret)
+               ++ret;
+             return ret;
+           }
+       }
+    }
+
+  for (i = 0, j = 0; i < ehdr->e_phnum; ++i)
+    if (phdr[i].p_type == PT_LOAD)
+      j = i;
+    else if (phdr[i].p_type == PT_PHDR)
+      {
+       if (phdr[i].p_filesz == ehdr->e_phnum * ehdr->e_phentsize)
+         phdr[i].p_filesz += ehdr->e_phentsize;
+       if (phdr[i].p_memsz == ehdr->e_phnum * ehdr->e_phentsize)
+         phdr[i].p_memsz += ehdr->e_phentsize;
+      }
+
+  memmove (&phdr[j + 2], &phdr[j + 1],
+          (ehdr->e_phnum - j - 1) * sizeof (GElf_Phdr));
+  ++ehdr->e_phnum;
+  phdr[++j].p_type = PT_LOAD;
+  phdr[j].p_offset = phdr[j - 1].p_offset + phdr[j - 1].p_filesz;
+  phdr[j].p_offset = (phdr[j].p_offset + add->sh_addralign - 1)
+                     & ~(add->sh_addralign - 1);
+  phdr[j].p_align = phdr[j - 1].p_align;
+  phdr[j].p_vaddr = phdr[j - 1].p_vaddr + phdr[j - 1].p_memsz;
+  phdr[j].p_vaddr += (phdr[j].p_align - 1);
+  phdr[j].p_vaddr &= ~(phdr[j].p_align - 1);
+  phdr[j].p_vaddr += (phdr[j].p_offset & (phdr[j].p_align - 1));
+  phdr[j].p_paddr = phdr[j].p_vaddr;
+  /* Although the content of the segment is read-only, unless it ends on
+     a page boundary, we must make it writeable. This is because the rest of
+     the last page in the segment will be used as sbrk area which is assumed
+     to be writeable.  */
+  phdr[j].p_flags = (PF_R | PF_W);
+  phdr[j].p_filesz = add->sh_size;
+  phdr[j].p_memsz = add->sh_size;
+  for (i = 1; i < ehdr->e_shnum; ++i)
+    if (! (shdr[i].sh_flags & (SHF_WRITE | SHF_ALLOC | SHF_EXECINSTR)))
+      break;
+  assert (i < ehdr->e_shnum);
+  insert_readonly_section (ehdr, shdr, i, adjust);
+  shdr[i] = *add;
+  shdr[i].sh_addr = phdr[j].p_vaddr;
+  shdr[i].sh_offset = phdr[j].p_offset;
+  adjust_nonalloc (dso, ehdr, shdr, 0, 0,
+                  phdr[j].p_offset + phdr[j].p_filesz - phdr[j - 1].p_offset
+                  - phdr[j - 1].p_filesz);
+  return i;
+}
diff --git a/src/space.h b/src/space.h
new file mode 100644 (file)
index 0000000..5c9f725
--- /dev/null
@@ -0,0 +1,39 @@
+/* Copyright (C) 2001, 2004 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifndef SPACE_H
+#define SPACE_H
+
+struct readonly_adjust
+{
+  off_t basemove_adjust;
+  GElf_Addr basemove_end;
+  int moveend;
+  int move2;
+  int newcount, *new;
+  struct section_move *move;
+};
+
+void insert_readonly_section (GElf_Ehdr *ehdr, GElf_Shdr *shdr, int n,
+                             struct readonly_adjust *adjust);
+int remove_readonly_section (GElf_Ehdr *ehdr, GElf_Shdr *shdr, int n,
+                            struct readonly_adjust *adjust);
+int find_readonly_space (DSO *dso, GElf_Shdr *add, GElf_Ehdr *ehdr,
+                        GElf_Phdr *phdr, GElf_Shdr *shdr,
+                        struct readonly_adjust *adjust);
+
+#endif /* SPACE_H */
diff --git a/src/stabs.c b/src/stabs.c
new file mode 100644 (file)
index 0000000..c0a5a6a
--- /dev/null
@@ -0,0 +1,188 @@
+/* Copyright (C) 2001, 2005, 2006 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <byteswap.h>
+#include <endian.h>
+#include <error.h>
+
+#include "prelink.h"
+
+#define N_ZERO         0x00
+#define N_GSYM         0x20
+#define N_FNAME                0x22
+#define N_FUN          0x24
+#define N_STSYM                0x26
+#define N_LCSYM                0x28
+#define N_MAIN         0x2a
+#define N_BNSYM                0x2e
+#define N_PC           0x30
+#define N_NSYMS                0x32
+#define N_NOMAP                0x34
+#define N_OBJ          0x38
+#define N_OPT          0x3c
+#define N_RSYM         0x40
+#define N_M2C          0x42
+#define N_SLINE                0x44
+#define N_DSLINE       0x46
+#define N_BSLINE       0x48
+#define N_BROWS                0x48
+#define N_DEFD         0x4a
+#define N_ENSYM                0x4e
+#define N_EHDECL       0x50
+#define N_MOD2         0x50
+#define N_CATCH                0x54
+#define N_SSYM         0x60
+#define N_SO           0x64
+#define N_LSYM         0x80
+#define N_BINCL                0x82
+#define N_SOL          0x84
+#define N_PSYM         0xa0
+#define N_EINCL                0xa2
+#define N_ENTRY                0xa4
+#define N_LBRAC                0xc0
+#define N_EXCL         0xc2
+#define N_SCOPE                0xc4
+#define N_RBRAC                0xe0
+#define N_BCOMM                0xe2
+#define N_ECOMM                0xe4
+#define N_ECOML                0xe8
+#define N_LENG         0xfe
+
+static uint32_t
+read_native (char *p)
+{
+  return *(uint32_t *)p;
+}
+
+static uint32_t
+read_swap (char *p)
+{
+  return bswap_32 (*(uint32_t *)p);
+}
+
+static void
+write_native (char *p, uint32_t v)
+{
+  *(uint32_t *)p = v;
+}
+
+static void
+write_swap (char *p, uint32_t v)
+{
+  *(uint32_t *)p = bswap_32 (v);
+}
+
+int
+adjust_stabs (DSO *dso, int n, GElf_Addr start, GElf_Addr adjust)
+{
+  Elf_Data *data = NULL;
+  Elf_Scn *scn = dso->scn[n];
+  off_t off;
+  uint32_t (*read_32) (char *p);
+  void (*write_32) (char *p, uint32_t v);
+  uint32_t value;
+  int sec, type;
+
+  assert (dso->shdr[n].sh_entsize == 12);
+  data = elf_getdata (scn, NULL);
+  assert (data != NULL && data->d_buf != NULL);
+  assert (elf_getdata (scn, data) == NULL);
+  assert (data->d_off == 0 && data->d_size == dso->shdr[n].sh_size);
+#if __BYTE_ORDER == __BIG_ENDIAN
+  if (dso->ehdr.e_ident[EI_DATA] == ELFDATA2MSB)
+#elif __BYTE_ORDER == __LITTLE_ENDIAN
+  if (dso->ehdr.e_ident[EI_DATA] == ELFDATA2LSB)
+#else
+# error Not supported host endianess
+#endif
+    {
+      read_32 = read_native;
+      write_32 = write_native;
+    }
+#if __BYTE_ORDER == __BIG_ENDIAN
+  else if (dso->ehdr.e_ident[EI_DATA] == ELFDATA2LSB)
+#elif __BYTE_ORDER == __LITTLE_ENDIAN
+  else if (dso->ehdr.e_ident[EI_DATA] == ELFDATA2MSB)
+#endif
+    {
+      read_32 = read_swap;
+      write_32 = write_swap;
+    }
+  else
+    {
+      error (0, 0, "%s: Wrong ELF data enconding", dso->filename);
+      return 1;
+    }
+
+  for (off = 0; off < data->d_size; off += 12)
+    {
+    switch ((type = *(uint8_t *)(data->d_buf + off + 4)))
+      {
+      case N_FUN:
+       /* If string is "", N_FUN is function length, otherwise
+          it is function start address.  */
+       if (read_32 (data->d_buf + off) == 0)
+         break;
+       /* FALLTHROUGH */
+      case N_STSYM:
+      case N_LCSYM:
+      case N_CATCH:
+      case N_SO:
+      case N_SOL:
+      case N_BNSYM:
+      case N_ENSYM:
+       value = read_32 (data->d_buf + off + 8);
+       sec = addr_to_sec (dso, value);
+       if (sec != -1)
+         {
+           addr_adjust (value, start, adjust);
+           write_32 (data->d_buf + off + 8, value);
+         }
+       break;
+      /* These should be always 0.  */
+      case N_GSYM:
+      case N_BINCL:
+      case N_EINCL:
+      case N_EXCL:
+      case N_BCOMM:
+      case N_ECOMM:
+      /* These contain other values.  */
+      case N_ZERO:
+      case N_NSYMS:
+      case N_NOMAP:
+      case N_RSYM:
+      case N_LSYM:
+      case N_PSYM:
+      case N_OPT:
+      /* These are relative.  */
+      case N_LBRAC:
+      case N_RBRAC:
+      case N_SLINE:
+      case N_BSLINE:
+      case N_DSLINE:
+       break;
+      default:
+       error (0, 0, "%s: Unknown stabs code 0x%02x\n", dso->filename, type);
+       return 1;
+      }
+    }
+
+  elf_flagscn (scn, ELF_C_SET, ELF_F_DIRTY);
+  return 0;
+}
diff --git a/src/undo.c b/src/undo.c
new file mode 100644 (file)
index 0000000..accbbfb
--- /dev/null
@@ -0,0 +1,712 @@
+/* Copyright (C) 2001, 2002, 2003, 2005 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <endian.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include "prelink.h"
+#include "reloc.h"
+
+static int
+undo_prelink_rel (DSO *dso, int n)
+{
+  Elf_Data *data = NULL;
+  Elf_Scn *scn = dso->scn[n];
+  GElf_Rel rel;
+  int sec;
+
+  if (dso->arch->undo_prelink_rel == NULL)
+    return 0;
+  while ((data = elf_getdata (scn, data)) != NULL)
+    {
+      int ndx, maxndx;
+      GElf_Addr addr = dso->shdr[n].sh_addr + data->d_off;
+
+      maxndx = data->d_size / dso->shdr[n].sh_entsize;
+      for (ndx = 0; ndx < maxndx;
+          ++ndx, addr += dso->shdr[n].sh_entsize)
+       {
+         gelfx_getrel (dso->elf, data, ndx, &rel);
+         sec = addr_to_sec (dso, rel.r_offset);
+         if (sec == -1)
+           continue;
+
+         switch (dso->arch->undo_prelink_rel (dso, &rel, addr))
+           {
+           case 2:
+             gelfx_update_rel (dso->elf, data, ndx, &rel);
+             break;
+           case 0:
+             break;
+           default:
+             return 1;
+           }
+       }
+    }
+  return 0;
+}
+
+static int
+undo_prelink_rela (DSO *dso, int n)
+{
+  Elf_Data *data = NULL;
+  Elf_Scn *scn = dso->scn[n];
+  GElf_Rela rela;
+  int sec;
+
+  if (dso->arch->undo_prelink_rela == NULL)
+    return 0;
+  while ((data = elf_getdata (scn, data)) != NULL)
+    {
+      int ndx, maxndx;
+      GElf_Addr addr = dso->shdr[n].sh_addr + data->d_off;
+
+      maxndx = data->d_size / dso->shdr[n].sh_entsize;
+      for (ndx = 0; ndx < maxndx;
+          ++ndx, addr += dso->shdr[n].sh_entsize)
+       {
+         gelfx_getrela (dso->elf, data, ndx, &rela);
+         sec = addr_to_sec (dso, rela.r_offset);
+         if (sec == -1)
+           continue;
+
+         switch (dso->arch->undo_prelink_rela (dso, &rela, addr))
+           {
+           case 2:
+             gelfx_update_rela (dso->elf, data, ndx, &rela);
+             break;
+           case 0:
+             break;
+           default:
+             return 1;
+           }
+       }
+    }
+  return 0;
+}
+
+static int
+remove_dynamic_prelink_tags (DSO *dso)
+{
+  Elf_Data *data;
+  Elf_Scn *scn;
+  GElf_Dyn dyn;
+  int ndx;
+
+  assert (dso->shdr[dso->dynamic].sh_type == SHT_DYNAMIC);
+  scn = dso->scn[dso->dynamic];
+  data = elf_getdata (scn, NULL);
+  assert (elf_getdata (scn, data) == NULL);
+  ndx = data->d_size / dso->shdr[dso->dynamic].sh_entsize;
+  while (--ndx >= 0)
+    {
+      gelfx_getdyn (dso->elf, data, ndx, &dyn);
+      switch (dyn.d_tag)
+       {
+       case DT_NULL:
+         continue;
+       case DT_CHECKSUM:
+       case DT_GNU_PRELINKED:
+       case DT_GNU_LIBLIST:
+       case DT_GNU_LIBLISTSZ:
+       case DT_GNU_CONFLICT:
+       case DT_GNU_CONFLICTSZ:
+         dyn.d_tag = DT_NULL;
+         dyn.d_un.d_val = 0;
+         gelfx_update_dyn (dso->elf, data, ndx, &dyn);
+         elf_flagscn (scn, ELF_C_SET, ELF_F_DIRTY);
+         break;
+       default:
+         ndx = 0;
+         break;
+       }
+    }
+  return 0;
+}
+
+int
+undo_sections (DSO *dso, int undo, struct section_move *move,
+              struct reloc_info *rinfo, GElf_Ehdr *ehdr,
+              GElf_Phdr *phdr, GElf_Shdr *shdr)
+{
+  Elf_Data src, dst, *d;
+  Elf_Scn *scn;
+  int i, j;
+
+  scn = dso->scn[undo];
+  d = elf_getdata (scn, NULL);
+  assert (d != NULL && elf_getdata (scn, d) == NULL);
+
+  src = *d;
+  src.d_type = ELF_T_EHDR;
+  src.d_align = dso->shdr[undo].sh_addralign;
+  src.d_size = gelf_fsize (dso->elf, ELF_T_EHDR, 1, EV_CURRENT);
+  dst = src;
+  if (src.d_size > d->d_size)
+    {
+      error (0, 0, "%s: .gnu.prelink_undo section too small",
+            dso->filename);
+      return 1;
+    }
+  switch (gelf_getclass (dso->elf))
+    {
+    case ELFCLASS32:
+      dst.d_buf = alloca (dst.d_size);
+      break;
+    case ELFCLASS64:
+      dst.d_buf = ehdr;
+      break;
+    default:
+      return 1;
+    }
+  if (gelf_xlatetom (dso->elf, &dst, &src, dso->ehdr.e_ident[EI_DATA]) == NULL)
+    {
+      error (0, 0, "%s: Could not read .gnu.prelink_undo section",
+            dso->filename);
+      return 1;
+    }
+  if (gelf_getclass (dso->elf) == ELFCLASS32)
+    {
+      Elf32_Ehdr *ehdr32 = (Elf32_Ehdr *) dst.d_buf;
+
+      memcpy (ehdr->e_ident, ehdr32->e_ident, sizeof (ehdr->e_ident));
+#define COPY(name) ehdr->name = ehdr32->name
+      COPY (e_type);
+      COPY (e_machine);
+      COPY (e_version);
+      COPY (e_entry);
+      COPY (e_phoff);
+      COPY (e_shoff);
+      COPY (e_flags);
+      COPY (e_ehsize);
+      COPY (e_phentsize);
+      COPY (e_phnum);
+      COPY (e_shentsize);
+      COPY (e_shnum);
+      COPY (e_shstrndx);
+#undef COPY
+    }
+
+  if (memcmp (ehdr->e_ident, dso->ehdr.e_ident, sizeof (ehdr->e_ident))
+      || ehdr->e_type != dso->ehdr.e_type
+      || ehdr->e_machine != dso->ehdr.e_machine
+      || ehdr->e_version != dso->ehdr.e_version
+      || ehdr->e_flags != dso->ehdr.e_flags
+      || ehdr->e_ehsize != dso->ehdr.e_ehsize
+      || ehdr->e_phentsize != dso->ehdr.e_phentsize
+      || ehdr->e_shentsize != dso->ehdr.e_shentsize)
+    {
+      error (0, 0, "%s: ELF headers changed since prelinking",
+            dso->filename);
+      return 1;
+    }
+
+  if (ehdr->e_phnum > dso->ehdr.e_phnum)
+    {
+      error (0, 0, "%s: Number of program headers is less than before prelinking",
+            dso->filename);
+      return 1;
+    }
+
+  if (d->d_size != (src.d_size
+                   + gelf_fsize (dso->elf, ELF_T_PHDR, ehdr->e_phnum,
+                                 EV_CURRENT)
+                   + gelf_fsize (dso->elf, ELF_T_SHDR, ehdr->e_shnum - 1,
+                                 EV_CURRENT)))
+    {
+      error (0, 0, "%s: Incorrect size of .gnu.prelink_undo section",
+            dso->filename);
+      return 1;
+    }
+
+  src.d_type = ELF_T_PHDR;
+  src.d_buf += src.d_size;
+  src.d_size = gelf_fsize (dso->elf, ELF_T_PHDR, ehdr->e_phnum, EV_CURRENT);
+  dst = src;
+  switch (gelf_getclass (dso->elf))
+    {
+    case ELFCLASS32:
+      dst.d_buf = alloca (dst.d_size);
+      break;
+    case ELFCLASS64:
+      dst.d_buf = phdr;
+      break;
+    }
+  if (gelf_xlatetom (dso->elf, &dst, &src, dso->ehdr.e_ident[EI_DATA]) == NULL)
+    {
+      error (0, 0, "%s: Could not read .gnu.prelink_undo section",
+            dso->filename);
+      return 1;
+    }
+
+  if (gelf_getclass (dso->elf) == ELFCLASS32)
+    {
+      Elf32_Phdr *phdr32 = (Elf32_Phdr *) dst.d_buf;
+
+      for (i = 0; i < ehdr->e_phnum; ++i)
+       {
+#define COPY(name) phdr[i].name = phdr32[i].name
+         COPY(p_type);
+         COPY(p_flags);
+         COPY(p_offset);
+         COPY(p_vaddr);
+         COPY(p_paddr);
+         COPY(p_filesz);
+         COPY(p_memsz);
+         COPY(p_align);
+#undef COPY
+       }
+    }
+
+  memset (shdr, 0, sizeof (GElf_Shdr));
+  src.d_type = ELF_T_SHDR;
+  src.d_buf += src.d_size;
+  src.d_size = gelf_fsize (dso->elf, ELF_T_SHDR, ehdr->e_shnum - 1, EV_CURRENT);
+  dst = src;
+  switch (gelf_getclass (dso->elf))
+    {
+    case ELFCLASS32:
+      dst.d_buf = alloca (dst.d_size);
+      break;
+    case ELFCLASS64:
+      dst.d_buf = shdr + 1;
+      break;
+    default:
+      return 1;
+    }
+  if (gelf_xlatetom (dso->elf, &dst, &src, dso->ehdr.e_ident[EI_DATA]) == NULL)
+    {
+      error (0, 0, "%s: Could not read .gnu.prelink_undo section",
+            dso->filename);
+      return 1;
+    }
+
+  if (gelf_getclass (dso->elf) == ELFCLASS32)
+    {
+      Elf32_Shdr *shdr32 = (Elf32_Shdr *) dst.d_buf;
+
+      for (i = 1; i < ehdr->e_shnum; ++i)
+       {
+#define COPY(name) shdr[i].name = shdr32[i - 1].name
+         COPY (sh_name);
+         COPY (sh_type);
+         COPY (sh_flags);
+         COPY (sh_addr);
+         COPY (sh_offset);
+         COPY (sh_size);
+         COPY (sh_link);
+         COPY (sh_info);
+         COPY (sh_addralign);
+         COPY (sh_entsize);
+#undef COPY
+       }
+    }
+
+  move->new_shnum = ehdr->e_shnum;
+  for (i = 1; i < move->old_shnum; ++i)
+    move->old_to_new[i] = -1;
+  for (i = 1; i < move->new_shnum; ++i)
+    move->new_to_old[i] = -1;
+
+  for (i = 1; i < move->old_shnum; ++i)
+    {
+      for (j = 1; j < move->new_shnum; ++j)
+       if (dso->shdr[i].sh_name == shdr[j].sh_name
+           && dso->shdr[i].sh_type == shdr[j].sh_type
+           && dso->shdr[i].sh_flags == shdr[j].sh_flags
+           && dso->shdr[i].sh_addralign == shdr[j].sh_addralign
+           && dso->shdr[i].sh_entsize == shdr[j].sh_entsize
+           && dso->shdr[i].sh_size == shdr[j].sh_size
+           && move->new_to_old[j] == -1)
+         break;
+
+      if (j == move->new_shnum)
+       continue;
+
+      move->old_to_new[i] = j;
+      move->new_to_old[j] = i;
+    }
+
+  for (i = 1; i < move->old_shnum; ++i)
+    if (move->old_to_new[i] == -1)
+      {
+       const char *name = strptr (dso, dso->ehdr.e_shstrndx,
+                                  dso->shdr[i].sh_name);
+
+       if (! strcmp (name, ".gnu.prelink_undo")
+           || ! strcmp (name, ".gnu.conflict")
+           || ! strcmp (name, ".gnu.liblist")
+           || ! strcmp (name, ".gnu.libstr")
+           || ((! strcmp (name, ".dynbss") || ! strcmp (name, ".sdynbss"))
+               && dso->ehdr.e_type == ET_EXEC))
+         continue;
+
+       if ((! strcmp (name, ".dynstr") && dso->ehdr.e_type == ET_EXEC)
+           || i == dso->ehdr.e_shstrndx)
+         {
+           for (j = 1; j < move->new_shnum; ++j)
+             if (dso->shdr[i].sh_name == shdr[j].sh_name
+                 && dso->shdr[i].sh_type == shdr[j].sh_type
+                 && dso->shdr[i].sh_flags == shdr[j].sh_flags
+                 && dso->shdr[i].sh_addralign == shdr[j].sh_addralign
+                 && dso->shdr[i].sh_entsize == shdr[j].sh_entsize
+                 && dso->shdr[i].sh_size > shdr[j].sh_size
+                 && move->new_to_old[j] == -1)
+               break;
+
+           if (j < move->new_shnum)
+             {
+               move->old_to_new[i] = j;
+               move->new_to_old[j] = i;
+               continue;
+             }
+         }
+
+       if (((i >= rinfo->first && i <= rinfo->last) || i == rinfo->plt)
+           && dso->shdr[i].sh_type == SHT_RELA)
+         {
+           for (j = 1; j < move->new_shnum; ++j)
+             if (dso->shdr[i].sh_name == shdr[j].sh_name
+                 && shdr[j].sh_type == SHT_REL
+                 && dso->shdr[i].sh_flags == shdr[j].sh_flags
+                 && dso->shdr[i].sh_addralign == shdr[j].sh_addralign
+                 && 2 * dso->shdr[i].sh_entsize == 3 * shdr[j].sh_entsize
+                 && 2 * dso->shdr[i].sh_size == 3 * shdr[j].sh_size
+                 && move->new_to_old[j] == -1)
+               break;
+
+           if (j < move->new_shnum)
+             {
+               move->old_to_new[i] = j;
+               move->new_to_old[j] = i;
+               continue;
+             }
+         }
+
+       if (! strcmp (name, ".bss")
+           || ! strcmp (name, ".sbss")
+           || ((! strcmp (name, ".plt") || ! strcmp (name, ".iplt"))
+               && dso->shdr[i].sh_type == SHT_PROGBITS))
+         {
+           int is_plt = ! strcmp (name, ".plt");
+
+           for (j = 1; j < move->new_shnum; ++j)
+             if (dso->shdr[i].sh_name == shdr[j].sh_name
+                 && dso->shdr[i].sh_flags == shdr[j].sh_flags
+                 && dso->shdr[i].sh_addralign == shdr[j].sh_addralign
+                 && (is_plt || dso->shdr[i].sh_entsize == shdr[j].sh_entsize)
+                 && move->new_to_old[j] == -1)
+               {
+                 if (is_plt)
+                   {
+                     if (dso->shdr[i].sh_size != shdr[j].sh_size)
+                       continue;
+                     if (shdr[j].sh_type == SHT_NOBITS
+                         && dso->shdr[i].sh_entsize == shdr[j].sh_entsize)
+                       break;
+                     /* On Alpha prelink fixes bogus sh_entsize of .plt
+                        sections.  */
+                     if (shdr[j].sh_type == SHT_PROGBITS)
+                       break;
+                   }
+                 else
+                   {
+                     const char *pname;
+
+                     if (dso->shdr[i].sh_type != shdr[j].sh_type
+                         && (dso->shdr[i].sh_type != SHT_PROGBITS
+                             || shdr[j].sh_type != SHT_NOBITS))
+                       continue;
+
+                     if (dso->shdr[i].sh_size == shdr[j].sh_size)
+                       break;
+
+                     pname = strptr (dso, dso->ehdr.e_shstrndx,
+                                     dso->shdr[i - 1].sh_name);
+                     if (strcmp (pname, ".dynbss")
+                         && strcmp (pname, ".sdynbss"))
+                       continue;
+
+                     if (dso->shdr[i].sh_size + dso->shdr[i - 1].sh_size
+                         == shdr[j].sh_size)
+                       break;
+                   }
+               }
+
+           if (j < move->new_shnum)
+             {
+               move->old_to_new[i] = j;
+               move->new_to_old[j] = i;
+               continue;
+             }
+         }
+
+       error (0, 0, "%s: Section %s created after prelinking",
+              dso->filename, name);
+       return 1;
+      }
+
+  for (i = 1; i < move->new_shnum; ++i)
+    if (move->new_to_old[i] == -1)
+      {
+       const char *name = strptr (dso, dso->ehdr.e_shstrndx, shdr[i].sh_name);
+
+       error (0, 0, "%s: Section %s removed after prelinking", dso->filename,
+              name);
+       return 1;
+      }
+
+  return 0;
+}
+
+int
+prelink_undo (DSO *dso)
+{
+  GElf_Ehdr ehdr;
+  GElf_Shdr shdr[dso->ehdr.e_shnum + 20], old_shdr[dso->ehdr.e_shnum];
+  GElf_Phdr phdr[dso->ehdr.e_phnum];
+  Elf_Scn *scn;
+  Elf_Data *d;
+  int undo, i;
+  struct section_move *move;
+  struct reloc_info rinfo;
+
+  for (undo = 1; undo < dso->ehdr.e_shnum; ++undo)
+    if (! strcmp (strptr (dso, dso->ehdr.e_shstrndx, dso->shdr[undo].sh_name),
+                 ".gnu.prelink_undo"))
+      break;
+
+  if (undo == dso->ehdr.e_shnum)
+    {
+      if (undo_output)
+       return reopen_dso (dso, NULL, undo_output);
+      error (0, 0, "%s does not have .gnu.prelink_undo section", dso->filename);
+      return 1;
+    }
+
+  memcpy (old_shdr, dso->shdr, sizeof (GElf_Shdr) * dso->ehdr.e_shnum);
+  move = init_section_move (dso);
+  if (move == NULL)
+    return 1;
+
+  if (find_reloc_sections (dso, &rinfo))
+    goto error_out;
+
+  if (undo_sections (dso, undo, move, &rinfo, &ehdr, phdr, shdr))
+    goto error_out;
+
+  if (reopen_dso (dso, move, undo_output))
+    goto error_out;
+
+  if (find_reloc_sections (dso, &rinfo))
+    goto error_out;
+
+  for (i = 1; i < dso->ehdr.e_shnum; i++)
+    {
+      if (! (dso->shdr[i].sh_flags & SHF_ALLOC))
+       continue;
+      if (! strcmp (strptr (dso, dso->ehdr.e_shstrndx,
+                           dso->shdr[i].sh_name),
+                   ".gnu.conflict"))
+       continue;
+      switch (dso->shdr[i].sh_type)
+       {
+       case SHT_REL:
+         if (undo_prelink_rel (dso, i))
+           goto error_out;
+         break;
+       case SHT_RELA:
+         if (undo_prelink_rela (dso, i))
+           goto error_out;
+         break;
+       }
+    }
+
+  if (dso->arch->arch_undo_prelink && dso->arch->arch_undo_prelink (dso))
+    goto error_out;
+
+  if (dso->ehdr.e_type == ET_DYN)
+    {
+      GElf_Addr adjust = 0, diff;
+
+      for (i = dso->ehdr.e_shnum - 1; i > 0; --i)
+       if (shdr[i].sh_flags & (SHF_WRITE | SHF_ALLOC | SHF_EXECINSTR))
+         {
+           adjust = shdr[i].sh_addr - dso->shdr[i].sh_addr;
+           break;
+         }
+      while (i > 0)
+       {
+         int nsec = 1, j;
+         /* Change here PROGBITS .plt into NOBITS if needed.  */
+
+         /* Convert RELA to REL if needed.  */
+         if (dso->shdr[i].sh_type == SHT_RELA && shdr[i].sh_type == SHT_REL)
+           {
+             assert (dso->arch->rela_to_rel != NULL);
+             if (i == rinfo.plt)
+               {
+                 if (convert_rela_to_rel (dso, i))
+                   goto error_out;
+                 dso->shdr[i].sh_size = shdr[i].sh_size;
+               }
+             else if (i == rinfo.last)
+               {
+                 GElf_Addr start = dso->shdr[rinfo.first].sh_addr;
+
+                 for (j = rinfo.first; j <= rinfo.last; ++j)
+                   {
+                     if (convert_rela_to_rel (dso, j))
+                       goto error_out;
+                     dso->shdr[j].sh_addr = start;
+                     dso->shdr[j].sh_size = shdr[j].sh_size;
+                     start += dso->shdr[j].sh_size;
+                   }
+                 nsec = rinfo.last - rinfo.first + 1;
+                 i = rinfo.first;
+               }
+             else
+               {
+                 error (0, 0, "%s: Cannot convert RELA to REL", dso->filename);
+                 goto error_out;
+               }
+           }
+         diff = shdr[i].sh_addr - dso->shdr[i].sh_addr;
+         if (diff != adjust)
+           {
+             assert (diff >= adjust);
+             if (adjust_dso (dso, dso->shdr[i + nsec].sh_addr, adjust - diff))
+               goto error_out;
+             adjust = diff;
+           }
+         --i;
+       }
+      if (adjust && adjust_dso (dso, 0, adjust))
+       goto error_out;
+      for (i = 1; i < dso->ehdr.e_shnum; ++i)
+       if (shdr[i].sh_flags & (SHF_WRITE | SHF_ALLOC | SHF_EXECINSTR))
+         assert (shdr[i].sh_addr == dso->shdr[i].sh_addr);
+    }
+  else
+    {
+      /* Executable.  */
+      for (i = 1; i < dso->ehdr.e_shnum; ++i)
+       {
+         const char *name = strptr (dso, dso->ehdr.e_shstrndx,
+                                    dso->shdr[i].sh_name);
+
+         if (dso->shdr[i].sh_type == SHT_PROGBITS
+             && shdr[i].sh_type == SHT_NOBITS)
+           {
+             assert (strcmp (name, ".bss") == 0
+                     || strcmp (name, ".sbss") == 0
+                     || strcmp (name, ".plt") == 0
+                     || strcmp (name, ".iplt") == 0);
+             scn = dso->scn[i];
+             d = elf_getdata (scn, NULL);
+             assert (d != NULL && elf_getdata (scn, d) == NULL);
+             assert (d->d_size == 0 || d->d_buf != NULL);
+             assert (d->d_size == dso->shdr[i].sh_size);
+             free (d->d_buf);
+             d->d_buf = NULL;
+             dso->shdr[i].sh_type = SHT_NOBITS;
+           }
+         else if (dso->shdr[i].sh_type == SHT_RELA
+                  && shdr[i].sh_type == SHT_REL)
+           {
+             if (convert_rela_to_rel (dso, i))
+               goto error_out;
+             dso->shdr[i].sh_size = shdr[i].sh_size;
+           }
+         else
+           assert (dso->shdr[i].sh_type == shdr[i].sh_type);
+         if (dso->shdr[i].sh_size != shdr[i].sh_size)
+           {
+             /* This is handled in code below for both ET_DYN and ET_EXEC.  */
+             if (i == dso->ehdr.e_shstrndx)
+               continue;
+             assert (shdr[i].sh_type == SHT_NOBITS
+                     || shdr[i].sh_size < dso->shdr[i].sh_size);
+             assert (strcmp (name, ".dynstr") == 0
+                     || strcmp (name, ".bss") == 0
+                     || strcmp (name, ".sbss") == 0);
+             scn = dso->scn[i];
+             d = elf_getdata (scn, NULL);
+             assert (d != NULL && elf_getdata (scn, d) == NULL);
+             d->d_size = shdr[i].sh_size;
+           }
+       }
+
+      if (update_dynamic_tags (dso, shdr, old_shdr, move))
+       goto error_out;
+
+      for (i = 1; i < dso->ehdr.e_shnum; ++i)
+       if (shdr[i].sh_flags & (SHF_WRITE | SHF_ALLOC | SHF_EXECINSTR))
+         dso->shdr[i].sh_addr = shdr[i].sh_addr;
+    }
+
+  /* Clear .dynamic entries added by prelink, update others.  */
+  if (remove_dynamic_prelink_tags (dso)
+      || update_dynamic_rel (dso, &rinfo))
+    goto error_out;
+
+  /* Shrink .shstrtab.  */
+  i = dso->ehdr.e_shstrndx;
+  if (shdr[i].sh_size < dso->shdr[i].sh_size)
+    {
+      scn = dso->scn[i];
+      d = elf_getdata (scn, NULL);
+      assert (d != NULL && elf_getdata (scn, d) == NULL);
+      assert (d->d_size == dso->shdr[i].sh_size);
+      d->d_size = shdr[i].sh_size;
+    }
+
+  /* Now restore the rest.  */
+  for (i = 1; i < dso->ehdr.e_shnum; ++i)
+    dso->shdr[i] = shdr[i];
+  if (dso->ehdr.e_phnum != ehdr.e_phnum)
+    {
+      assert (ehdr.e_phnum < dso->ehdr.e_phnum);
+      if (gelf_newphdr (dso->elf, ehdr.e_phnum) == 0)
+       {
+         error (0, 0, "Could not create new ELF headers");
+         goto error_out;
+       }
+    }
+  for (i = 0; i < ehdr.e_phnum; ++i)
+    dso->phdr[i] = phdr[i];
+  dso->permissive = 1;
+  assert (dso->ehdr.e_entry == ehdr.e_entry);
+  assert (dso->ehdr.e_shnum == ehdr.e_shnum);
+  assert (dso->ehdr.e_shstrndx == ehdr.e_shstrndx);
+  dso->ehdr.e_phoff = ehdr.e_phoff;
+  dso->ehdr.e_shoff = ehdr.e_shoff;
+  dso->ehdr.e_phnum = ehdr.e_phnum;
+  free (move);
+  return 0;
+
+error_out:
+  free (move);
+  return 1;
+}
diff --git a/src/undoall.c b/src/undoall.c
new file mode 100644 (file)
index 0000000..4ce4670
--- /dev/null
@@ -0,0 +1,173 @@
+/* Copyright (C) 2002, 2005 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2002.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <alloca.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <time.h>
+#include <unistd.h>
+#include "prelinktab.h"
+
+static int
+undo_one (void **p, void *info)
+{
+  struct prelink_entry *ent = * (struct prelink_entry **) p;
+  DSO *dso;
+  struct stat64 st;
+  struct prelink_link *hardlink;
+  char *move = NULL;
+  size_t movelen = 0;
+
+  if (ent->done != 2)
+    return 1;
+
+  if (ent->type != ET_DYN
+      && (ent->type != ET_EXEC || libs_only))
+    return 1;
+
+  dso = open_dso (ent->canon_filename);
+  if (dso == NULL)
+    goto error_out;
+
+  if (fstat64 (dso->fd, &st) < 0)
+    {
+      error (0, errno, "%s changed during prelinking", ent->filename);
+      goto error_out;
+    }
+
+  if (st.st_dev != ent->dev || st.st_ino != ent->ino)
+    {
+      error (0, 0, "%s changed during prelinking", ent->filename);
+      goto error_out;
+    }
+
+  if (verbose)
+    {
+      if (dry_run)
+       printf ("Would undo %s\n", ent->canon_filename);
+      else
+       printf ("Undoing %s\n", ent->canon_filename);
+    }
+
+  if (prelink_undo (dso))
+    goto error_out;
+
+  if (dry_run)
+    close_dso (dso);
+  else
+    {
+      if (update_dso (dso, NULL))
+       {
+         dso = NULL;
+         goto error_out;
+       }
+    }
+
+  dso = NULL;
+
+  /* Redo hardlinks.  */
+  for (hardlink = ent->hardlink; hardlink; hardlink = hardlink->next)
+    {
+      size_t len;
+
+      if (lstat64 (hardlink->canon_filename, &st) < 0)
+       {
+         error (0, 0, "Could not stat %s (former hardlink to %s)",
+                hardlink->canon_filename, ent->canon_filename);
+         continue;
+       }
+
+      if (st.st_dev != ent->dev || st.st_ino != ent->ino)
+       {
+         error (0, 0, "%s is no longer hardlink to %s",
+                hardlink->canon_filename, ent->canon_filename);
+         continue;
+       }
+
+      if (verbose)
+       {
+         if (dry_run)
+           printf ("Would link %s to %s\n", hardlink->canon_filename,
+                   ent->canon_filename);
+         else
+           printf ("Linking %s to %s\n", hardlink->canon_filename,
+                   ent->canon_filename);
+       }
+
+      len = strlen (hardlink->canon_filename);
+      if (len + sizeof (".#prelink#") > movelen)
+       {
+         movelen = len + sizeof (".#prelink#");
+         move = realloc (move, movelen);
+         if (move == NULL)
+           {
+             error (0, ENOMEM, "Could not hardlink %s to %s",
+                    hardlink->canon_filename, ent->canon_filename);
+             movelen = 0;
+             continue;
+           }
+       }
+
+      memcpy (mempcpy (move, hardlink->canon_filename, len), ".#prelink#",
+             sizeof (".#prelink#"));
+      if (rename (hardlink->canon_filename, move) < 0)
+       {
+         error (0, errno, "Could not hardlink %s to %s",
+                hardlink->canon_filename, ent->canon_filename);
+         continue;
+       }
+
+      if (link (ent->canon_filename, hardlink->canon_filename) < 0)
+       {
+         error (0, errno, "Could not hardlink %s to %s",
+                hardlink->canon_filename, ent->canon_filename);
+
+         if (rename (move, hardlink->canon_filename) < 0)
+           {
+             error (0, errno, "Could not rename %s back to %s",
+                    move, hardlink->canon_filename);
+           }
+         continue;
+       }
+
+      if (unlink (move) < 0)
+       {
+         error (0, errno, "Could not unlink %s", move);
+         continue;
+       }
+    }
+  free (move);
+  return 1;
+
+error_out:
+  if (dso)
+    close_dso (dso);
+  (*(int *)info)++;
+  return 1;
+}
+
+int
+undo_all (void)
+{
+  int failures = 0;
+  htab_traverse (prelink_filename_htab, undo_one, &failures);
+  return failures != 0;
+}
diff --git a/src/verify.c b/src/verify.c
new file mode 100644 (file)
index 0000000..7abc945
--- /dev/null
@@ -0,0 +1,445 @@
+/* Copyright (C) 2002, 2003, 2006, 2007 Red Hat, Inc.
+   Written by Jakub Jelinek <jakub@redhat.com>, 2002.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include <config.h>
+#include <assert.h>
+#include <endian.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include "prelink.h"
+#include "md5.h"
+#include "sha.h"
+
+static ssize_t
+send_file (int outfd, int infd, off_t *poff, size_t count)
+{
+  char buf[65536], *b, *p, *q;
+  size_t todo = count, len;
+  ssize_t n;
+
+  b = mmap (NULL, count, PROT_READ, MAP_PRIVATE, infd, *poff);
+  if (b != MAP_FAILED)
+    {
+      p = b;
+      q = p + count;
+      while (p != q)
+       {
+         n = TEMP_FAILURE_RETRY (write (outfd, p, q - p));
+         if (n < 0)
+           {
+             munmap (b, count);
+             return -1;
+           }
+         p += n;
+       }
+      munmap (b, count);
+      return count;
+    }
+
+  if (lseek (infd, *poff, SEEK_SET) != *poff)
+    return -1;
+  while (todo > 0)
+    {
+      len = todo > sizeof (buf) ? sizeof (buf) : todo;
+      p = buf;
+      q = buf + len;
+      while (p != q)
+       {
+         n = TEMP_FAILURE_RETRY (read (infd, p, q - p));
+         if (n < 0)
+           return -1;
+         p += n;
+       }
+      p = buf;
+      while (p != q)
+       {
+         n = TEMP_FAILURE_RETRY (write (outfd, p, q - p));
+         if (n < 0)
+           return -1;
+         p += n;
+       }
+      todo -= len;
+    }
+  return count;
+}
+
+static int
+checksum_file (int fd, size_t count,
+              void (*sum) (const void *, size_t, void *), void *arg)
+{
+  char buf[65536+64], *b, *p, *q;
+  size_t todo = count, len;
+  ssize_t n;
+
+  b = mmap (NULL, count, PROT_READ, MAP_PRIVATE, fd, 0);
+  if (b != MAP_FAILED)
+    {
+      sum (b, count, arg);
+      munmap (b, count);
+      return 0;
+    }
+
+  b = (char *) (((uintptr_t) buf + 63) & ~(uintptr_t) 63);
+  while (todo > 0)
+    {
+      len = todo > 65536 ? 65536 : todo;
+      p = b;
+      q = b + len;
+      while (p != q)
+       {
+         n = TEMP_FAILURE_RETRY (read (fd, p, q - p));
+         if (n < 0)
+           return 1;
+         p += n;
+       }
+      sum (b, len, arg);
+      todo -= len;
+    }
+  return 0;
+}
+
+static int
+handle_verify (int fd, const char *filename)
+{
+  off_t off;
+  size_t cnt;
+  struct stat64 st;
+
+  if (fstat64 (fd, &st) < 0)
+    {
+      error (0, errno, "%s: couldn't fstat temporary file", filename);
+      return 1;
+    }
+
+  if (verify_method == VERIFY_CONTENT)
+    {
+      off = 0;
+      if (send_file (1, fd, &off, st.st_size) != st.st_size)
+       {
+         error (0, errno, "Couldn't write file to standard output");
+         return 1;
+       }
+    }
+  else if (verify_method == VERIFY_MD5)
+    {
+      struct md5_ctx ctx;
+      unsigned char bin_buffer[16];
+
+      md5_init_ctx (&ctx);
+      if (checksum_file (fd, st.st_size,
+                        (void (*) (const void *, size_t, void *))
+                        md5_process_bytes, &ctx))
+       {
+         error (0, errno, "%s: Couldn't read temporary file", filename);
+         return 1;
+       }
+
+      md5_finish_ctx (&ctx, bin_buffer);
+      for (cnt = 0; cnt < 16; ++cnt)
+       printf ("%02x", bin_buffer[cnt]);
+      printf ("  %s\n", filename);
+    }
+  else if (verify_method == VERIFY_SHA)
+    {
+      struct sha_ctx ctx;
+      unsigned char bin_buffer[20];
+
+      sha_init_ctx (&ctx);
+      if (checksum_file (fd, st.st_size,
+                        (void (*) (const void *, size_t, void *))
+                        sha_process_bytes, &ctx))
+       {
+         error (0, errno, "%s: Couldn't read temporary file", filename);
+         return 1;
+       }
+
+      sha_finish_ctx (&ctx, bin_buffer);
+      for (cnt = 0; cnt < 20; ++cnt)
+       printf ("%02x", bin_buffer[cnt]);
+      printf ("  %s\n", filename);
+    }
+  return 0;
+}
+
+int
+prelink_verify (const char *filename)
+{
+  DSO *dso = NULL, *dso2 = NULL;
+  int fd = -1, fdorig = -1, fdundone = -1, undo, ret;
+  struct stat64 st, st2;
+  struct prelink_entry *ent;
+  GElf_Addr base;
+  char buffer[32768], buffer2[32768];
+  size_t count;
+  char *p, *q;
+
+  if (stat64 (filename, &st) < 0)
+    error (EXIT_FAILURE, errno, "Couldn't stat %s", filename);
+
+  dso = open_dso (filename);
+  if (dso == NULL)
+    goto not_prelinked;
+
+  if (dso->ehdr.e_type != ET_DYN && dso->ehdr.e_type != ET_EXEC)
+    {
+      error (0, 0, "%s is not an ELF shared library nor binary", filename);
+      goto not_prelinked;
+    }
+
+  for (undo = 1; undo < dso->ehdr.e_shnum; ++undo)
+    if (! strcmp (strptr (dso, dso->ehdr.e_shstrndx, dso->shdr[undo].sh_name),
+                 ".gnu.prelink_undo"))
+      break;
+
+  if (undo == dso->ehdr.e_shnum)
+    goto not_prelinked;
+
+  if (fstat64 (dso->fd, &st2) < 0)
+    {
+      error (0, errno, "Couldn't fstat %s", filename);
+      goto failure;
+    }
+
+  if (st.st_dev != st2.st_dev || st.st_ino != st2.st_ino
+      || st.st_size != st2.st_size)
+    {
+      error (0, 0, "%s: changed during --verify", filename);
+      goto failure;
+    }
+
+  if (read_config (prelink_conf))
+    goto failure;
+
+  if (gather_config ())
+    goto failure;
+
+  if (gather_object (filename, 0, 0))
+    goto failure;
+
+  ent = prelink_find_entry (filename, &st, 0);
+  if (ent == NULL)
+    {
+      error (0, 0, "%s disappeared while running --verify", filename);
+      goto failure;
+    }
+
+  if (ent->done != 2)
+    {
+      error (0, 0, "%s: at least one of file's dependencies has changed since prelinking",
+            filename);
+      goto failure;
+    }
+
+  base = dso->base;
+  ent->base = base;
+
+  ret = prelink_undo (dso);
+  if (ret)
+    goto failure;
+
+  switch (write_dso (dso))
+    {
+    case 2:
+      error (0, 0, "Could not write temporary for %s: %s", filename,
+            elf_errmsg (-1));
+      goto failure;
+    case 1:
+      goto failure;
+    case 0:
+      break;
+    }
+
+  fd = open (dso->temp_filename, O_RDONLY);
+  if (fd < 0)
+    {
+      error (0, errno, "Could not verify %s", filename);
+      goto failure;
+    }
+
+  fdorig = dup (dso->fdro);
+  if (fdorig < 0)
+    {
+      error (0, errno, "Could not verify %s", filename);
+      goto failure;
+    }
+
+  ent->filename = dso->temp_filename;
+  dso->temp_filename = NULL;
+  close_dso (dso);
+  dso = NULL;
+
+  fchmod (fd, 0700);
+
+  dso2 = fdopen_dso (fd, filename);
+  if (dso2 == NULL)
+    goto failure_unlink;
+  fd = -1;
+
+  if (prelink_prepare (dso2))
+    goto failure_unlink;
+
+  if (ent->type == ET_DYN && relocate_dso (dso2, base))
+    goto failure_unlink;
+
+  if (prelink (dso2, ent))
+    goto failure_unlink;
+
+  unlink (ent->filename);
+
+  if (write_dso (dso2))
+    goto failure;
+
+  fd = dup (dso2->fd);
+  if (fd < 0)
+    {
+      error (0, errno, "Could not verify %s", filename);
+      goto failure;
+    }
+
+  fdundone = dup (dso2->fdro);
+  if (fdundone < 0)
+    {
+      error (0, errno, "Could not verify %s", filename);
+      goto failure;
+    }
+
+  close_dso (dso2);
+  dso2 = NULL;
+
+  if (fstat64 (fdorig, &st2) < 0)
+    {
+      error (0, errno, "Couldn't fstat %s", filename);
+      goto failure;
+    }
+
+  if (st.st_dev != st2.st_dev || st.st_ino != st2.st_ino
+      || st.st_size != st2.st_size)
+    {
+      error (0, 0, "%s: changed during --verify", filename);
+      goto failure;
+    }
+
+  if (fstat64 (fd, &st2) < 0)
+    {
+      error (0, errno, "Couldn't fstat temporary file");
+      goto failure;
+    }
+
+  if (st.st_size != st2.st_size)
+    {
+      error (0, 0, "%s: prelinked file size differs", filename);
+      goto failure;
+    }
+
+  q = MAP_FAILED;
+  p = mmap (NULL, st.st_size, PROT_READ, MAP_PRIVATE, fdorig, 0);
+  if (p != MAP_FAILED)
+    {
+      q = mmap (NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
+      if (q == MAP_FAILED)
+       {
+         munmap (p, st.st_size);
+         p = MAP_FAILED;
+       }
+    }
+  if (p != MAP_FAILED)
+    {
+      int ret = memcmp (p, q, st.st_size);
+
+      munmap (p, st.st_size);
+      munmap (q, st.st_size);
+      if (ret != 0)
+       {
+         error (0, 0, "%s: prelinked file was modified", filename);
+         goto failure;
+       }
+    }
+  else
+    {
+      if (lseek (fdorig, 0, SEEK_SET) != 0
+         || lseek (fd, 0, SEEK_SET) != 0)
+       {
+         error (0, errno, "%s: couldn't seek to start of files", filename);
+         goto failure;
+       }
+
+      count = st.st_size;
+      while (count > 0)
+       {
+         size_t len = sizeof (buffer);
+
+         if (len > count)
+           len = count;
+         if (read (fdorig, buffer, len) != len)
+           {
+             error (0, errno, "%s: couldn't read file", filename);
+             goto failure;
+           }
+         if (read (fd, buffer2, len) != len)
+           {
+             error (0, errno, "%s: couldn't read temporary file", filename);
+             goto failure;
+           }
+         if (memcmp (buffer, buffer2, len) != 0)
+           {
+             error (0, 0, "%s: prelinked file was modified", filename);
+             goto failure;
+           }
+         count -= len;
+       }
+    }
+
+  if (handle_verify (fdundone, filename))
+    goto failure;
+
+  close (fd);
+  close (fdorig);
+  close (fdundone);
+  return 0;
+
+failure_unlink:
+  unlink (ent->filename);
+failure:
+  if (fd != -1)
+    close (fd);
+  if (fdorig != -1)
+    close (fdorig);
+  if (fdundone != -1)
+    close (fdundone);
+  if (dso)
+    close_dso (dso);
+  if (dso2)
+    close_dso (dso2);
+  return EXIT_FAILURE;
+
+not_prelinked:
+  if (dso)
+    close_dso (dso);
+  fd = open (filename, O_RDONLY);
+  if (fd < 0)
+    error (EXIT_FAILURE, errno, "Couldn't open %s", filename);
+  if (handle_verify (fd, filename))
+    return EXIT_FAILURE;
+  close (fd);
+  return 0;
+}
diff --git a/stamp-h.in b/stamp-h.in
new file mode 100644 (file)
index 0000000..9788f70
--- /dev/null
@@ -0,0 +1 @@
+timestamp
diff --git a/testsuite/Makefile.am b/testsuite/Makefile.am
new file mode 100644 (file)
index 0000000..0de603c
--- /dev/null
@@ -0,0 +1,57 @@
+## Process this file with automake to create Makefile.in
+
+AUTOMAKE_OPTIONS = 1.4 gnu
+
+DEFS = -D_GNU_SOURCE -DHAVE_CONFIG_H -Wall
+AM_CFLAGS = -Wall
+
+TESTS = movelibs.sh \
+       reloc1.sh reloc2.sh reloc3.sh reloc4.sh reloc5.sh reloc6.sh \
+       reloc7.sh reloc8.sh reloc9.sh reloc10.sh reloc11.sh \
+       shuffle1.sh shuffle2.sh shuffle3.sh shuffle4.sh shuffle5.sh \
+       shuffle6.sh shuffle7.sh shuffle8.sh shuffle9.sh undo1.sh \
+       layout1.sh layout2.sh \
+       tls1.sh tls2.sh tls3.sh tls4.sh tls5.sh tls6.sh tls7.sh \
+       cxx1.sh cxx2.sh quick1.sh quick2.sh quick3.sh cycle1.sh cycle2.sh \
+       deps1.sh deps2.sh \
+       ifunc1.sh ifunc2.sh ifunc3.sh \
+       undosyslibs.sh
+TESTS_ENVIRONMENT = \
+       PRELINK="../src/prelink -c ./prelink.conf -C ./prelink.cache --ld-library-path=. --dynamic-linker=`echo ./ld*.so.*[0-9]`" \
+       CC="$(CC) $(LINKOPTS)" CCLINK="$(CC) -Wl,--dynamic-linker=`echo ./ld*.so.*[0-9]`" \
+       CXX="$(CXX) $(LINKOPTS)" CXXLINK="$(CXX) -Wl,--dynamic-linker=`echo ./ld*.so.*[0-9]`" \
+       $(SHELL)
+
+extra_DIST = $(TESTS) functions.sh
+
+CLEANFILES = *.so *.so.* *.nop syslib.list syslnk.list prelink.cache prelink.conf \
+       $(TESTS:%.sh=%) $(TESTS:%.sh=%.log) $(TESTS:%.sh=%.lds) \
+       *.orig *.new core* *.\#prelink\#* tlstest *.first *.second
+
+clean-am: clean-dirs
+
+clean-dirs:
+       rm -rf *.tree
+
+.NOTPARALLEL:
+
+check-cycle:
+       @optlist=.; \
+       if [ "`uname -m | sed s/i.86/i.86/`" = i.86 ]; then \
+         optlist="--no-exec-shield --exec-shield"; \
+       fi; \
+       for opts2 in $$optlist; do \
+         for opts in -v -vm -vR -vmR; do \
+           PRELINK_OPTS="$$opts"; \
+           [ $$opts2 != . ] && PRELINK_OPTS="$$opts $$opts2"; \
+           echo "Checking with $$PRELINK_OPTS"; \
+           PRELINK_OPTS="$$PRELINK_OPTS" $(MAKE) $(AM_MAKEFLAGS) check || exit; \
+           $(MAKE) $(AM_MAKEFLAGS) clean || exit; \
+         done; \
+       done; \
+       echo "Checking with -Wl,-z,nocombreloc"; \
+       LINKOPTS=-Wl,-z,nocombreloc $(MAKE) $(AM_MAKEFLAGS) check || exit; \
+       $(MAKE) $(AM_MAKEFLAGS) clean || exit
+
+check-harder:
+       @CHECK_ME_HARDER=1 $(MAKE) $(AM_MAKEFLAGS) check || exit
diff --git a/testsuite/Makefile.in b/testsuite/Makefile.in
new file mode 100644 (file)
index 0000000..30eeeb5
--- /dev/null
@@ -0,0 +1,343 @@
+# Makefile.in generated by automake 1.6.3 from Makefile.am.
+# @configure_input@
+
+# Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
+# Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+SHELL = @SHELL@
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = @srcdir@
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+
+bindir = @bindir@
+sbindir = @sbindir@
+libexecdir = @libexecdir@
+datadir = @datadir@
+sysconfdir = @sysconfdir@
+sharedstatedir = @sharedstatedir@
+localstatedir = @localstatedir@
+libdir = @libdir@
+infodir = @infodir@
+mandir = @mandir@
+includedir = @includedir@
+oldincludedir = /usr/include
+pkgdatadir = $(datadir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+top_builddir = ..
+
+ACLOCAL = @ACLOCAL@
+AUTOCONF = @AUTOCONF@
+AUTOMAKE = @AUTOMAKE@
+AUTOHEADER = @AUTOHEADER@
+
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+INSTALL = @INSTALL@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_DATA = @INSTALL_DATA@
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = @program_transform_name@
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+host_alias = @host_alias@
+host_triplet = @host@
+
+EXEEXT = @EXEEXT@
+OBJEXT = @OBJEXT@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+AMTAR = @AMTAR@
+AR = @AR@
+AS = @AS@
+AWK = @AWK@
+CC = @CC@
+CPP = @CPP@
+CXX = @CXX@
+CXXCPP = @CXXCPP@
+DEPDIR = @DEPDIR@
+DLLTOOL = @DLLTOOL@
+ECHO = @ECHO@
+EGREP = @EGREP@
+F77 = @F77@
+GCJ = @GCJ@
+GCJFLAGS = @GCJFLAGS@
+GELFINCLUDE = @GELFINCLUDE@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LIBGELF = @LIBGELF@
+LIBTOOL = @LIBTOOL@
+LN_S = @LN_S@
+OBJDUMP = @OBJDUMP@
+PACKAGE = @PACKAGE@
+RANLIB = @RANLIB@
+RC = @RC@
+STRIP = @STRIP@
+VERSION = @VERSION@
+am__include = @am__include@
+am__quote = @am__quote@
+install_sh = @install_sh@
+
+AUTOMAKE_OPTIONS = 1.4 gnu
+
+DEFS = -D_GNU_SOURCE -DHAVE_CONFIG_H -Wall
+AM_CFLAGS = -Wall
+
+TESTS = movelibs.sh \
+       reloc1.sh reloc2.sh reloc3.sh reloc4.sh reloc5.sh reloc6.sh \
+       reloc7.sh reloc8.sh reloc9.sh reloc10.sh reloc11.sh \
+       shuffle1.sh shuffle2.sh shuffle3.sh shuffle4.sh shuffle5.sh \
+       shuffle6.sh shuffle7.sh shuffle8.sh shuffle9.sh undo1.sh \
+       layout1.sh layout2.sh \
+       tls1.sh tls2.sh tls3.sh tls4.sh tls5.sh tls6.sh tls7.sh \
+       cxx1.sh cxx2.sh quick1.sh quick2.sh quick3.sh cycle1.sh cycle2.sh \
+       deps1.sh deps2.sh \
+       ifunc1.sh ifunc2.sh ifunc3.sh \
+       undosyslibs.sh
+
+TESTS_ENVIRONMENT = \
+       PRELINK="../src/prelink -c ./prelink.conf -C ./prelink.cache --ld-library-path=. --dynamic-linker=`echo ./ld*.so.*[0-9]`" \
+       CC="$(CC) $(LINKOPTS)" CCLINK="$(CC) -Wl,--dynamic-linker=`echo ./ld*.so.*[0-9]`" \
+       CXX="$(CXX) $(LINKOPTS)" CXXLINK="$(CXX) -Wl,--dynamic-linker=`echo ./ld*.so.*[0-9]`" \
+       $(SHELL)
+
+
+extra_DIST = $(TESTS) functions.sh
+
+CLEANFILES = *.so *.so.* *.nop syslib.list syslnk.list prelink.cache prelink.conf \
+       $(TESTS:%.sh=%) $(TESTS:%.sh=%.log) $(TESTS:%.sh=%.lds) \
+       *.orig *.new core* *.\#prelink\#* tlstest *.first *.second
+
+subdir = testsuite
+mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+DIST_SOURCES =
+DIST_COMMON = Makefile.am Makefile.in
+all: all-am
+
+.SUFFIXES:
+$(srcdir)/Makefile.in:  Makefile.am  $(top_srcdir)/configure.in $(ACLOCAL_M4)
+       cd $(top_srcdir) && \
+         $(AUTOMAKE) --gnu  testsuite/Makefile
+Makefile:  $(srcdir)/Makefile.in  $(top_builddir)/config.status
+       cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)
+
+mostlyclean-libtool:
+       -rm -f *.lo
+
+clean-libtool:
+       -rm -rf .libs _libs
+
+distclean-libtool:
+       -rm -f libtool
+uninstall-info-am:
+tags: TAGS
+TAGS:
+
+
+check-TESTS: $(TESTS)
+       @failed=0; all=0; xfail=0; xpass=0; \
+       srcdir=$(srcdir); export srcdir; \
+       list='$(TESTS)'; \
+       if test -n "$$list"; then \
+         for tst in $$list; do \
+           if test -f ./$$tst; then dir=./; \
+           elif test -f $$tst; then dir=; \
+           else dir="$(srcdir)/"; fi; \
+           if $(TESTS_ENVIRONMENT) $${dir}$$tst; then \
+             all=`expr $$all + 1`; \
+             case " $(XFAIL_TESTS) " in \
+             *" $$tst "*) \
+               xpass=`expr $$xpass + 1`; \
+               failed=`expr $$failed + 1`; \
+               echo "XPASS: $$tst"; \
+             ;; \
+             *) \
+               echo "PASS: $$tst"; \
+             ;; \
+             esac; \
+           elif test $$? -ne 77; then \
+             all=`expr $$all + 1`; \
+             case " $(XFAIL_TESTS) " in \
+             *" $$tst "*) \
+               xfail=`expr $$xfail + 1`; \
+               echo "XFAIL: $$tst"; \
+             ;; \
+             *) \
+               failed=`expr $$failed + 1`; \
+               echo "FAIL: $$tst"; \
+             ;; \
+             esac; \
+           fi; \
+         done; \
+         if test "$$failed" -eq 0; then \
+           if test "$$xfail" -eq 0; then \
+             banner="All $$all tests passed"; \
+           else \
+             banner="All $$all tests behaved as expected ($$xfail expected failures)"; \
+           fi; \
+         else \
+           if test "$$xpass" -eq 0; then \
+             banner="$$failed of $$all tests failed"; \
+           else \
+             banner="$$failed of $$all tests did not behave as expected ($$xpass unexpected passes)"; \
+           fi; \
+         fi; \
+         dashes=`echo "$$banner" | sed s/./=/g`; \
+         echo "$$dashes"; \
+         echo "$$banner"; \
+         echo "$$dashes"; \
+         test "$$failed" -eq 0; \
+       else :; fi
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+
+top_distdir = ..
+distdir = $(top_distdir)/$(PACKAGE)-$(VERSION)
+
+distdir: $(DISTFILES)
+       @list='$(DISTFILES)'; for file in $$list; do \
+         if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+         dir=`echo "$$file" | sed -e 's,/[^/]*$$,,'`; \
+         if test "$$dir" != "$$file" && test "$$dir" != "."; then \
+           dir="/$$dir"; \
+           $(mkinstalldirs) "$(distdir)$$dir"; \
+         else \
+           dir=''; \
+         fi; \
+         if test -d $$d/$$file; then \
+           if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+             cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+           fi; \
+           cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+         else \
+           test -f $(distdir)/$$file \
+           || cp -p $$d/$$file $(distdir)/$$file \
+           || exit 1; \
+         fi; \
+       done
+check-am: all-am
+       $(MAKE) $(AM_MAKEFLAGS) check-TESTS
+check: check-am
+all-am: Makefile
+
+installdirs:
+
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+       @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+       $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+         INSTALL_STRIP_FLAG=-s \
+         `test -z '$(STRIP)' || \
+           echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+       -test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+       -rm -f Makefile $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+       @echo "This command is intended for maintainers to use"
+       @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-am
+
+distclean-am: clean-am distclean-generic distclean-libtool
+
+dvi: dvi-am
+
+dvi-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-exec-am:
+
+install-info: install-info-am
+
+install-man:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+uninstall-am: uninstall-info-am
+
+.PHONY: all all-am check check-TESTS check-am clean clean-generic \
+       clean-libtool distclean distclean-generic distclean-libtool \
+       distdir dvi dvi-am info info-am install install-am install-data \
+       install-data-am install-exec install-exec-am install-info \
+       install-info-am install-man install-strip installcheck \
+       installcheck-am installdirs maintainer-clean \
+       maintainer-clean-generic mostlyclean mostlyclean-generic \
+       mostlyclean-libtool uninstall uninstall-am uninstall-info-am
+
+
+clean-am: clean-dirs
+
+clean-dirs:
+       rm -rf *.tree
+
+.NOTPARALLEL:
+
+check-cycle:
+       @optlist=.; \
+       if [ "`uname -m | sed s/i.86/i.86/`" = i.86 ]; then \
+         optlist="--no-exec-shield --exec-shield"; \
+       fi; \
+       for opts2 in $$optlist; do \
+         for opts in -v -vm -vR -vmR; do \
+           PRELINK_OPTS="$$opts"; \
+           [ $$opts2 != . ] && PRELINK_OPTS="$$opts $$opts2"; \
+           echo "Checking with $$PRELINK_OPTS"; \
+           PRELINK_OPTS="$$PRELINK_OPTS" $(MAKE) $(AM_MAKEFLAGS) check || exit; \
+           $(MAKE) $(AM_MAKEFLAGS) clean || exit; \
+         done; \
+       done; \
+       echo "Checking with -Wl,-z,nocombreloc"; \
+       LINKOPTS=-Wl,-z,nocombreloc $(MAKE) $(AM_MAKEFLAGS) check || exit; \
+       $(MAKE) $(AM_MAKEFLAGS) clean || exit
+
+check-harder:
+       @CHECK_ME_HARDER=1 $(MAKE) $(AM_MAKEFLAGS) check || exit
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/testsuite/cxx1.C b/testsuite/cxx1.C
new file mode 100644 (file)
index 0000000..9c11a6d
--- /dev/null
@@ -0,0 +1,26 @@
+#include "cxx1.h"
+extern "C" void abort (void);
+
+void
+check (A *x, B *y)
+{
+  C d;
+  if (x->b () != 21)
+    abort ();
+  if (y->B::a () != 22)
+    abort ();
+  if (d.a () != 23)
+    abort ();
+  if (d.C::b () != 24)
+    abort ();
+}
+
+int
+main ()
+{
+  A x;
+  if (x.a () != 20)
+    abort ();
+  do_check (check, &x);
+  return 0;
+}
diff --git a/testsuite/cxx1.h b/testsuite/cxx1.h
new file mode 100644 (file)
index 0000000..d6efe9b
--- /dev/null
@@ -0,0 +1,19 @@
+struct A
+  {
+    virtual int a ();
+    virtual int b ();
+    int c;
+  };
+struct B
+  {
+    virtual int a ();
+    int b;
+  };
+struct C
+  {
+    virtual int a ();
+    virtual int b ();
+    int c;
+  };
+
+void do_check (void (*check) (A *x, B *y), A *x);
diff --git a/testsuite/cxx1.sh b/testsuite/cxx1.sh
new file mode 100755 (executable)
index 0000000..c99f198
--- /dev/null
@@ -0,0 +1,19 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+rm -f cxx1 cxx1lib*.so cxx1.log
+rm -f prelink.cache
+$CXX -shared -O2 -fpic -o cxx1lib1.so $srcdir/cxx1lib1.C
+$CXX -shared -O2 -fpic -o cxx1lib2.so $srcdir/cxx1lib2.C cxx1lib1.so
+BINS="cxx1"
+LIBS="cxx1lib1.so cxx1lib2.so"
+$CXXLINK -o cxx1 $srcdir/cxx1.C -Wl,--rpath-link,. cxx1lib2.so
+savelibs
+echo $PRELINK -vvvv ${PRELINK_OPTS--vm} ./cxx1 > cxx1.log
+$PRELINK -vvvv ${PRELINK_OPTS--vm} ./cxx1 >> cxx1.log 2>&1 || exit 1
+grep ^`echo $PRELINK | sed 's/ .*$/: /'` cxx1.log | grep -q -v 'C++ conflict' && exit 2
+[ $( grep ^`echo $PRELINK | sed 's/ .*$/: /'` cxx1.log | grep 'Removing C++ conflict' | wc -l ) -ge 5 ] || exit 3
+LD_LIBRARY_PATH=. ./cxx1 || exit 4
+readelf -a ./cxx1 >> cxx1.log 2>&1 || exit 5
+# So that it is not prelinked again
+chmod -x ./cxx1
+comparelibs >> cxx1.log 2>&1 || exit 6
diff --git a/testsuite/cxx1lib1.C b/testsuite/cxx1lib1.C
new file mode 100644 (file)
index 0000000..1eb192a
--- /dev/null
@@ -0,0 +1,34 @@
+#include "cxx1.h"
+
+int A::a ()
+{
+  return 10;
+}
+
+int A::b ()
+{
+  return 11;
+}
+
+int B::a ()
+{
+  return 12;
+}
+
+int C::a ()
+{
+  return 13;
+}
+
+int C::b ()
+{
+  return 14;
+}
+
+void
+do_check (void (*check) (A *x, B *y), A *x)
+{
+  B y;
+
+  check (x, &y);
+}
diff --git a/testsuite/cxx1lib2.C b/testsuite/cxx1lib2.C
new file mode 100644 (file)
index 0000000..77055da
--- /dev/null
@@ -0,0 +1,28 @@
+#include "cxx1.h"
+
+int A::a ()
+{
+  return 20;
+}
+
+int A::b ()
+{
+  return 21;
+}
+
+int B::a ()
+{
+  return 22;
+}
+
+int C::a ()
+{
+  return 23;
+}
+
+int C::b ()
+{
+  return 24;
+}
+
+C c;
diff --git a/testsuite/cxx2.C b/testsuite/cxx2.C
new file mode 100644 (file)
index 0000000..8b6e0bf
--- /dev/null
@@ -0,0 +1,51 @@
+#include "cxx1.h"
+extern "C" void abort (void);
+
+int A::a ()
+{
+  return 30;
+}
+
+int A::b ()
+{
+  return 31;
+}
+
+int B::a ()
+{
+  return 32;
+}
+
+int C::a ()
+{
+  return 33;
+}
+
+int C::b ()
+{
+  return 34;
+}
+
+void
+check (A *x, B *y)
+{
+  C d;
+  if (x->b () != 31)
+    abort ();
+  if (y->B::a () != 32)
+    abort ();
+  if (d.a () != 33)
+    abort ();
+  if (d.C::b () != 34)
+    abort ();
+}
+
+int
+main ()
+{
+  A x;
+  if (x.a () != 30)
+    abort ();
+  do_check (check, &x);
+  return 0;
+}
diff --git a/testsuite/cxx2.sh b/testsuite/cxx2.sh
new file mode 100755 (executable)
index 0000000..edad081
--- /dev/null
@@ -0,0 +1,19 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+rm -f cxx2 cxx2lib*.so cxx2.log
+rm -f prelink.cache
+$CXX -shared -O2 -fpic -o cxx2lib1.so $srcdir/cxx1lib1.C
+$CXX -shared -O2 -fpic -o cxx2lib2.so $srcdir/cxx1lib2.C cxx2lib1.so
+BINS="cxx2"
+LIBS="cxx2lib1.so cxx2lib2.so"
+$CXXLINK -o cxx2 $srcdir/cxx2.C -Wl,--rpath-link,. cxx2lib2.so
+savelibs
+echo $PRELINK -vvvv ${PRELINK_OPTS--vm} ./cxx2 > cxx2.log
+$PRELINK -vvvv ${PRELINK_OPTS--vm} ./cxx2 >> cxx2.log 2>&1 || exit 1
+grep ^`echo $PRELINK | sed 's/ .*$/: /'` cxx2.log | grep -q -v 'C++ conflict' && exit 2
+[ $( grep ^`echo $PRELINK | sed 's/ .*$/: /'` cxx2.log | grep 'Removing C++ conflict' | wc -l ) -ge 9 ] || exit 3
+LD_LIBRARY_PATH=. ./cxx2 || exit 4
+readelf -a ./cxx2 >> cxx2.log 2>&1 || exit 5
+# So that it is not prelinked again
+chmod -x ./cxx2
+comparelibs >> cxx2.log 2>&1 || exit 6
diff --git a/testsuite/cycle1.sh b/testsuite/cycle1.sh
new file mode 100755 (executable)
index 0000000..3dc7f93
--- /dev/null
@@ -0,0 +1,23 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+rm -f cycle1 cycle1lib*.so cycle1.log
+rm -f prelink.cache
+# Test whether prelink doesn't segfault or loop endlessly on
+# bogus library dependency chains
+echo 'int foo;' | $CC -shared -O2 -fpic -o cycle1lib1.so -xc -
+echo 'int bar;' | $CC -shared -O2 -fpic -o cycle1lib2.so -xc - -xnone cycle1lib1.so
+echo 'int foo;' | $CC -shared -O2 -fpic -o cycle1lib1.so -xc - -xnone cycle1lib2.so
+BINS="cycle1"
+LIBS="cycle1lib1.so cycle1lib2.so"
+echo 'int main (void) { return 0; } ' \
+  | $CCLINK -o cycle1 -xc - -xnone -Wl,--rpath-link,. cycle1lib2.so
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./cycle1 > cycle1.log
+$PRELINK ${PRELINK_OPTS--vm} ./cycle1 >> cycle1.log 2>&1 || exit 1
+grep -v 'has a dependency cycle' cycle1.log \
+  | grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` && exit 2
+grep -q "^`echo $PRELINK | sed 's/ .*$/: .*has a dependency cycle/'`" \
+  cycle1.log || exit 3
+LD_LIBRARY_PATH=. ./cycle1 || exit 4
+# So that it is not prelinked again
+chmod -x ./cycle1
diff --git a/testsuite/cycle2.sh b/testsuite/cycle2.sh
new file mode 100755 (executable)
index 0000000..0b99a5d
--- /dev/null
@@ -0,0 +1,26 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+rm -f cycle2 cycle2lib*.so cycle2.log
+rm -f prelink.cache
+# Test whether prelink doesn't segfault or loop endlessly on
+# bogus library dependency chains
+echo 'int i1;' | $CC -shared -O2 -fpic -o cycle2lib1.so -xc -
+echo 'int i2;' | $CC -shared -O2 -fpic -o cycle2lib2.so -xc - -xnone cycle2lib1.so
+echo 'int i3;' | $CC -shared -O2 -fpic -o cycle2lib3.so -xc - -xnone cycle2lib2.so
+echo 'int i4;' | $CC -shared -O2 -fpic -o cycle2lib4.so -xc - -xnone cycle2lib3.so
+echo 'int i5;' | $CC -shared -O2 -fpic -o cycle2lib5.so -xc - -xnone cycle2lib4.so
+echo 'int i1;' | $CC -shared -O2 -fpic -o cycle2lib1.so -xc - -xnone cycle2lib5.so
+BINS="cycle2"
+LIBS="cycle2lib1.so cycle2lib2.so cycle2lib3.so cycle2lib4.so cycle2lib5.so"
+echo 'int main (void) { return 0; } ' \
+  | $CCLINK -o cycle2 -xc - -xnone -Wl,--rpath-link,. cycle2lib5.so
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./cycle2 > cycle2.log
+$PRELINK ${PRELINK_OPTS--vm} ./cycle2 >> cycle2.log 2>&1 || exit 1
+grep -v 'has a dependency cycle' cycle2.log \
+  | grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` && exit 2
+grep -q "^`echo $PRELINK | sed 's/ .*$/: .*has a dependency cycle/'`" \
+  cycle2.log || exit 3
+LD_LIBRARY_PATH=. ./cycle2 || exit 4
+# So that it is not prelinked again
+chmod -x ./cycle2
diff --git a/testsuite/deps1.c b/testsuite/deps1.c
new file mode 100644 (file)
index 0000000..331546c
--- /dev/null
@@ -0,0 +1,18 @@
+#include "reloc1.h"
+#include <stdlib.h>
+
+static struct A local = { 77, &local, &bar + 4 };
+
+int main()
+{
+  if (foo.a != 1 || foo.b != &foo || foo.c != &bar || bar != 26)
+    abort ();
+  if (f1 () != 1 || f2 () != 2)
+    abort ();
+  local.c -= 4;
+  if (local.a != 77 || local.b != &local || local.c != &bar)
+    abort ();
+  if (f8 () != 17)
+    abort ();
+  exit (0);
+}
diff --git a/testsuite/deps1.h b/testsuite/deps1.h
new file mode 100644 (file)
index 0000000..d5868f7
--- /dev/null
@@ -0,0 +1,4 @@
+#include "reloc1.h"
+
+extern int f8 (void);
+extern int f9 (void);
diff --git a/testsuite/deps1.sh b/testsuite/deps1.sh
new file mode 100755 (executable)
index 0000000..c345c07
--- /dev/null
@@ -0,0 +1,58 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+
+PRELINK=`echo $PRELINK \
+        | sed -e 's, \./\(prelink\.\(cache\|conf\)\), deps1.tree/etc/\1,g' \
+              -e 's,path=\.,path=deps1.tree/lib:deps1.tree/usr/lib:deps1.tree/opt/lib,' \
+              -e 's,linker=\./,linker=deps1.tree/lib/,'`
+CCLINK=`echo $CCLINK \
+       | sed -e 's,linker=\./,linker=deps1.tree/lib/,'`
+rm -rf deps1.tree
+rm -f deps1.log
+mkdir -p deps1.tree/{lib,etc,usr/lib,opt/lib,usr/bin}
+$CC -shared -O2 -fpic -o deps1.tree/usr/lib/lib1.so $srcdir/deps1lib1.c
+$CC -shared -O2 -fpic -o deps1.tree/opt/lib/lib1.so $srcdir/deps1lib1.c
+$CC -shared -O2 -fpic -o deps1.tree/usr/lib/lib2.so $srcdir/deps1lib2.c \
+    -L deps1.tree/opt/lib -Wl,-rpath,deps1.tree/opt/lib -l1
+echo '' | $CC -shared -O2 -fpic -o deps1.tree/usr/lib/lib3.so -xc - -xnone \
+    -L deps1.tree/usr/lib -L deps1.tree/opt/lib -Wl,-rpath,deps1.tree/usr/lib \
+    -l1 -l2
+for lib in `cat syslib.list`; do
+  cp -p $lib.orig deps1.tree/lib/$lib
+  cp -p $lib.orig deps1.tree/lib/$lib.orig
+done
+for lib in `cat syslnk.list`; do
+  cp -dp $lib deps1.tree/lib
+done
+$CCLINK -o deps1.tree/usr/bin/bin1 $srcdir/deps1.c \
+    -Wl,-rpath,deps1.tree/usr/lib -L deps1.tree/usr/lib -l3
+cat > deps1.tree/etc/prelink.conf <<EOF
+deps1.tree/usr/bin
+deps1.tree/lib
+deps1.tree/usr/lib
+deps1.tree/opt/lib
+EOF
+LIBS="deps1.tree/usr/lib/lib1.so deps1.tree/usr/lib/lib2.so"
+LIBS="$LIBS deps1.tree/usr/lib/lib3.so deps1.tree/opt/lib/lib1.so"
+LIBS="$LIBS `sed 's|^|deps1.tree/lib/|' syslib.list`"
+BINS="deps1.tree/usr/bin/bin1"
+savelibs
+chmod 644 `ls $BINS | sed 's|$|.orig|'`
+echo $PRELINK ${PRELINK_OPTS--v} -avvvvv > deps1.log
+$PRELINK ${PRELINK_OPTS--v} -avvvvv > deps1.tree/etc/log1 2>&1 || exit 1
+cat deps1.tree/etc/log1 >> deps1.log
+LD_LIBRARY_PATH=deps1.tree/lib deps1.tree/usr/bin/bin1 || exit 2
+readelf -d deps1.tree/{usr,opt}/lib/lib1.so 2>&1 | grep CHECKSUM >> deps1.log || exit 3
+readelf -A deps1.tree/usr/lib/lib1.so >> deps1.log 2>&1 || exit 4
+readelf -A deps1.tree/opt/lib/lib1.so >> deps1.log 2>&1 || exit 5
+readelf -A deps1.tree/usr/lib/lib2.so >> deps1.log 2>&1 || exit 6
+readelf -A deps1.tree/usr/lib/lib3.so >> deps1.log 2>&1 || exit 7
+readelf -A deps1.tree/usr/bin/bin1 >> deps1.log 2>&1 || exit 8
+LIBS="deps1.tree/usr/lib/lib1.so deps1.tree/usr/lib/lib2.so"
+LIBS="$LIBS deps1.tree/opt/lib/lib1.so"
+readelf -S deps1.tree/usr/lib/lib3.so | grep -q .gnu.prelink_undo \
+  && LIBS="$LIBS deps1.tree/usr/lib/lib3.so"
+readelf -S deps1.tree/usr/bin/bin1 | grep -q .gnu.prelink_undo \
+  || BINS=
+comparelibs >> deps1.log 2>&1 || exit 8
+exit 0
diff --git a/testsuite/deps1lib1.c b/testsuite/deps1lib1.c
new file mode 100644 (file)
index 0000000..d4ab28b
--- /dev/null
@@ -0,0 +1,21 @@
+#include "deps1.h"
+
+int bar = 26;
+int baz = 28;
+
+struct A foo = { 1, &foo, &bar };
+
+int f1 (void)
+{
+  return 1;
+}
+
+int f2 (void)
+{
+  return f1 () + 1;
+}
+
+int f9 (void)
+{
+  return 18;
+}
diff --git a/testsuite/deps1lib2.c b/testsuite/deps1lib2.c
new file mode 100644 (file)
index 0000000..f73b456
--- /dev/null
@@ -0,0 +1,11 @@
+#include "reloc1.h"
+
+int f1 (void)
+{
+  return 11;
+}
+
+int f8 (void)
+{
+  return f9 () - 1;
+}
diff --git a/testsuite/deps2.sh b/testsuite/deps2.sh
new file mode 100755 (executable)
index 0000000..636023c
--- /dev/null
@@ -0,0 +1,55 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+
+PRELINK=`echo $PRELINK \
+        | sed -e 's, \./\(prelink\.\(cache\|conf\)\), deps2.tree/etc/\1,g' \
+              -e 's,path=\.,path=deps2.tree/lib:deps2.tree/usr/lib:deps2.tree/opt/lib,' \
+              -e 's,linker=\./,linker=deps2.tree/lib/,'`
+CCLINK=`echo $CCLINK \
+       | sed -e 's,linker=\./,linker=deps2.tree/lib/,'`
+rm -rf deps2.tree
+rm -f deps2.log
+mkdir -p deps2.tree/{lib,etc,usr/lib,opt/lib,usr/bin}
+$CC -shared -O2 -fpic -o deps2.tree/usr/lib/lib1.so $srcdir/deps1lib1.c
+$CC -shared -O2 -fpic -o deps2.tree/opt/lib/lib1.so $srcdir/deps2lib1.c
+$CC -shared -O2 -fpic -o deps2.tree/usr/lib/lib2.so $srcdir/deps1lib2.c \
+    -L deps2.tree/opt/lib -Wl,-rpath,deps2.tree/opt/lib -l1
+echo '' | $CC -shared -O2 -fpic -o deps2.tree/usr/lib/lib3.so -xc - -xnone \
+    -L deps2.tree/usr/lib -L deps2.tree/opt/lib -Wl,-rpath,deps2.tree/usr/lib \
+    -l1 -l2
+for lib in `cat syslib.list`; do
+  cp -p $lib.orig deps2.tree/lib/$lib
+  cp -p $lib.orig deps2.tree/lib/$lib.orig
+done
+for lib in `cat syslnk.list`; do
+  cp -dp $lib deps2.tree/lib
+done
+$CCLINK -o deps2.tree/usr/bin/bin1 $srcdir/deps1.c \
+    -Wl,-rpath,deps2.tree/usr/lib -L deps2.tree/usr/lib -l3
+cat > deps2.tree/etc/prelink.conf <<EOF
+deps2.tree/usr/bin
+deps2.tree/lib
+deps2.tree/usr/lib
+deps2.tree/opt/lib
+EOF
+LIBS="deps2.tree/usr/lib/lib1.so deps2.tree/usr/lib/lib2.so"
+LIBS="$LIBS deps2.tree/usr/lib/lib3.so deps2.tree/opt/lib/lib1.so"
+LIBS="$LIBS `sed 's|^|deps2.tree/lib/|' syslib.list`"
+BINS="deps2.tree/usr/bin/bin1"
+savelibs
+chmod 644 `ls $BINS | sed 's|$|.orig|'`
+echo $PRELINK ${PRELINK_OPTS--v} -avvvvv > deps2.log
+$PRELINK ${PRELINK_OPTS--v} -avvvvv > deps2.tree/etc/log1 2>&1 || exit 1
+cat deps2.tree/etc/log1 >> deps2.log
+LD_LIBRARY_PATH=deps2.tree/lib deps2.tree/usr/bin/bin1 || exit 2
+readelf -d deps2.tree/{usr,opt}/lib/lib1.so 2>&1 | grep CHECKSUM >> deps2.log || exit 3
+readelf -A deps2.tree/usr/lib/lib1.so >> deps2.log 2>&1 || exit 4
+readelf -A deps2.tree/opt/lib/lib1.so >> deps2.log 2>&1 || exit 5
+readelf -A deps2.tree/usr/lib/lib2.so >> deps2.log 2>&1 || exit 6
+readelf -A deps2.tree/usr/lib/lib3.so >> deps2.log 2>&1 || exit 7
+readelf -A deps2.tree/usr/bin/bin1 >> deps2.log 2>&1 || exit 8
+LIBS="deps2.tree/usr/lib/lib1.so deps2.tree/usr/lib/lib2.so"
+LIBS="$LIBS deps2.tree/opt/lib/lib1.so"
+BINS=
+comparelibs >> deps2.log 2>&1 || exit 9
+exit 0
diff --git a/testsuite/deps2lib1.c b/testsuite/deps2lib1.c
new file mode 100644 (file)
index 0000000..9d4b2de
--- /dev/null
@@ -0,0 +1,26 @@
+#include "deps1.h"
+
+int bar = 26;
+int baz = 28;
+
+struct A foo = { 1, &foo, &bar };
+
+int f0 (void)
+{
+  return f1 () + f2 () + f9 () + bar + baz;
+}
+
+int f1 (void)
+{
+  return 1;
+}
+
+int f2 (void)
+{
+  return f1 () + 1;
+}
+
+int f9 (void)
+{
+  return 18;
+}
diff --git a/testsuite/functions.sh b/testsuite/functions.sh
new file mode 100755 (executable)
index 0000000..85bf875
--- /dev/null
@@ -0,0 +1,23 @@
+#!/bin/bash
+CC="${CC:-gcc} ${LINKOPTS}"
+CCLINK=${CCLINK:-${CC} -Wl,--dynamic-linker=`echo ./ld*.so.*[0-9]`}
+CXX="${CXX:-g++} ${LINKOPTS}"
+CXXLINK=${CXXLINK:-${CXX} -Wl,--dynamic-linker=`echo ./ld*.so.*[0-9]`}
+PRELINK=${PRELINK:-../src/prelink -c ./prelink.conf -C ./prelink.cache --ld-library-path=. --dynamic-linker=`echo ./ld*.so.*[0-9]`}
+srcdir=${srcdir:-`dirname $0`}
+savelibs() {
+  for i in $LIBS $BINS; do cp -p $i $i.orig; done
+}
+comparelibs() {
+  for i in $LIBS $BINS; do
+    cp -p $i $i.new
+    echo $PRELINK -u $i.new
+    $PRELINK -u $i.new || exit
+    cmp -s $i.orig $i.new || exit
+    rm -f $i.new
+    echo $PRELINK -y $i \> $i.new
+    $PRELINK -y $i > $i.new || exit
+    cmp -s $i.orig $i.new || exit
+    rm -f $i.new
+  done
+}
diff --git a/testsuite/ifunc.h b/testsuite/ifunc.h
new file mode 100644 (file)
index 0000000..036444b
--- /dev/null
@@ -0,0 +1,57 @@
+#ifndef PICKNO
+# define PICKNO 1
+#endif
+#if PICKNO == 2
+# define PICK(fn1, fn2) #fn2
+#else
+# define PICK(fn1, fn2) #fn1
+#endif
+#ifdef __x86_64__
+# define IFUNC_ASM(fn) "\tleaq " fn "(%rip), %rax\n\tretq\n"
+#elif defined __i386__
+# ifdef __PIC__
+#  define IFUNC_ASM(fn) "\tcall 1f\n1:\tpopl %ecx\n"   \
+    "\taddl $_GLOBAL_OFFSET_TABLE_+[.-1b], %ecx\n"     \
+    "\tleal " fn "@GOTOFF(%ecx), %eax\n\tret\n"
+# else
+#  define IFUNC_ASM(fn) "\tmovl $" fn ", %eax\n\tret\n"
+# endif
+#elif defined __powerpc__
+# define IFUNC_ASM(fn) "\tmflr 12\n\tbcl 20,31,1f\n"   \
+    "\t1:mflr 3\n\tmtlr 12\n\taddis 3,3, " fn          \
+    "-1b@ha\n\taddi 3,3," fn "-1b@l\n\tblr\n"
+# if defined __powerpc64__
+#  define IFUNC_DECL(name, hidden, fn1, fn2) \
+asm (".text\n"                                         \
+     "\t.globl " #name "\n"                            \
+     "\t" hidden " " #name "\n"                                \
+     "\t.type " #name ", @gnu_indirect_function\n"     \
+     "\t.section .opd,\"aw\"\n"                                \
+     "\t.align 3\n"                                    \
+     #name ":\n"                                       \
+     "\t.quad .L." #name ",.TOC.@tocbase,0\n"          \
+     "\t.previous\n"                                   \
+     ".L." #name ":\n"                                 \
+     IFUNC_ASM (PICK (fn1, fn2))                       \
+     "\t.size " #name ", .-" #name "\n")
+# endif
+#else
+# error Architecture not supported
+#endif
+#ifndef IFUNC_DECL
+#define IFUNC_DECL(name, hidden, fn1, fn2) \
+asm (".text\n"                                         \
+     "\t.globl " #name "\n"                            \
+     "\t" hidden " " #name "\n"                                \
+     "\t.type " #name ", @gnu_indirect_function\n"     \
+     #name ":\n"                                       \
+     IFUNC_ASM (PICK (fn1, fn2))                       \
+     "\t.size " #name ", .-" #name "\n")
+#endif
+#define IFUNC(name, hidden, fn1, fn2) \
+extern __typeof (fn1) fn1 __attribute__((used));       \
+extern __typeof (fn2) fn2 __attribute__((used));       \
+extern __typeof (fn1) name;                            \
+IFUNC_DECL (name, hidden, fn1, fn2)
+#define IFUNC_LOCAL(name, fn1, fn2) IFUNC(name, ".hidden", fn1, fn2)
+#define IFUNC_GLOBAL(name, fn1, fn2) IFUNC(name, ".globl", fn1, fn2)
diff --git a/testsuite/ifunc1.c b/testsuite/ifunc1.c
new file mode 100644 (file)
index 0000000..f5500df
--- /dev/null
@@ -0,0 +1,29 @@
+#include "ifunc.h"
+
+static int bint11 (void) { return 1; }
+static int bint12 (void) { return 2; }
+
+IFUNC_LOCAL (bint1, bint11, bint12);
+
+static int lib2t21 (void) { return 1; }
+static int lib2t22 (void) { return 2; }
+
+IFUNC_GLOBAL (lib2t2, lib2t21, lib2t22);
+
+extern int lib1t2 (void);
+extern int lib1test (void);
+extern int lib2test (void);
+
+extern void abort (void);
+
+int
+main (void)
+{
+  lib1test ();
+  lib2test ();
+  if (bint1 () != PICKNO)
+    abort ();
+  if (lib1t2 () != PICKNO)
+    abort ();
+  return 0;
+}
diff --git a/testsuite/ifunc1.sh b/testsuite/ifunc1.sh
new file mode 100755 (executable)
index 0000000..7746234
--- /dev/null
@@ -0,0 +1,21 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+# First check if __thread is supported by ld.so/gcc/ld/as:
+$CCLINK -o ifunctest $srcdir/ifunctest.c -Wl,--rpath-link,. > /dev/null 2>&1 || exit 77
+( ./ifunctest || { rm -f ifunctest; exit 77; } ) 2>/dev/null || exit 77
+rm -f ifunctest ifunc1 ifunc1lib*.so ifunc1.log
+rm -f prelink.cache
+$CC -shared -O2 -fpic -o ifunc1lib1.so $srcdir/ifunc1lib1.c
+$CC -shared -O2 -fpic -o ifunc1lib2.so $srcdir/ifunc1lib2.c ifunc1lib1.so
+BINS="ifunc1"
+LIBS="ifunc1lib1.so ifunc1lib2.so"
+$CCLINK -o ifunc1 $srcdir/ifunc1.c -Wl,--rpath-link,. ifunc1lib2.so
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./ifunc1 >> ifunc1.log
+$PRELINK ${PRELINK_OPTS--vm} ./ifunc1 >> ifunc1.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` ifunc1.log && exit 2
+LD_LIBRARY_PATH=. ./ifunc1 || exit 3
+readelf -a ./ifunc1 >> ifunc1.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./ifunc1
+comparelibs >> ifunc1.log 2>&1 || exit 5
diff --git a/testsuite/ifunc1lib1.c b/testsuite/ifunc1lib1.c
new file mode 100644 (file)
index 0000000..27a3f03
--- /dev/null
@@ -0,0 +1,32 @@
+#include "ifunc.h"
+
+static int lib1t11 (void) { return 11; }
+static int lib1t12 (void) { return 12; }
+
+IFUNC_LOCAL (lib1t1, lib1t11, lib1t12);
+
+static int lib1t21 (void) { return 1; }
+static int lib1t22 (void) { return 2; }
+
+IFUNC_GLOBAL (lib1t2, lib1t21, lib1t22);
+
+static int lib1t31 (void) { return 3; }
+static int lib1t32 (void) { return 4; }
+
+IFUNC_GLOBAL (lib1t3, lib1t31, lib1t32);
+
+extern void abort (void);
+
+int (*lib1p1) (void) = lib1t1;
+
+int
+lib1test (void)
+{
+  if (lib1t1 () != PICKNO + 10)
+    abort ();
+  if (lib1t3 () != PICKNO)
+    abort ();
+  if (lib1p1 () != PICKNO + 10)
+    abort ();
+  return 0;
+}
diff --git a/testsuite/ifunc1lib2.c b/testsuite/ifunc1lib2.c
new file mode 100644 (file)
index 0000000..ca12e3d
--- /dev/null
@@ -0,0 +1,39 @@
+#include "ifunc.h"
+
+static int lib2t11 (void) { return 1; }
+static int lib2t12 (void) { return 2; }
+
+IFUNC_LOCAL (lib2t1, lib2t11, lib2t12);
+
+static int lib2t21 (void) { return 3; }
+static int lib2t22 (void) { return 4; }
+
+IFUNC_GLOBAL (lib2t2, lib2t21, lib2t22);
+
+static int lib2t31 (void) { return 1; }
+static int lib2t32 (void) { return 2; }
+
+IFUNC_GLOBAL (lib2t3, lib2t31, lib2t32);
+
+static int lib1t31 (void) { return 1; }
+static int lib1t32 (void) { return 2; }
+
+IFUNC_GLOBAL (lib1t3, lib1t31, lib1t32);
+
+int (*lib2p1) (void) = lib2t2;
+
+extern void abort (void);
+
+int
+lib2test (void)
+{
+  if (lib2t1 () != PICKNO)
+    abort ();
+  if (lib2t2 () != PICKNO)
+    abort ();
+  if (lib2t3 () != PICKNO)
+    abort ();
+  if (lib2p1 () != PICKNO)
+    abort ();
+  return 0;
+}
diff --git a/testsuite/ifunc2.sh b/testsuite/ifunc2.sh
new file mode 100755 (executable)
index 0000000..dea5bf4
--- /dev/null
@@ -0,0 +1,21 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+# First check if __thread is supported by ld.so/gcc/ld/as:
+$CCLINK -o ifunctest $srcdir/ifunctest.c -Wl,--rpath-link,. > /dev/null 2>&1 || exit 77
+( ./ifunctest || { rm -f ifunctest; exit 77; } ) 2>/dev/null || exit 77
+rm -f ifunctest ifunc2 ifunc2lib*.so ifunc2.log
+rm -f prelink.cache
+$CC -shared -O2 -fpic -o ifunc2lib1.so $srcdir/ifunc1lib1.c -DPICKNO=2
+$CC -shared -O2 -fpic -o ifunc2lib2.so $srcdir/ifunc1lib2.c ifunc2lib1.so -DPICKNO=2
+BINS="ifunc2"
+LIBS="ifunc2lib1.so ifunc2lib2.so"
+$CCLINK -o ifunc2 $srcdir/ifunc1.c -Wl,--rpath-link,. ifunc2lib2.so -DPICKNO=2
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./ifunc2 >> ifunc2.log
+$PRELINK ${PRELINK_OPTS--vm} ./ifunc2 >> ifunc2.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` ifunc2.log && exit 2
+LD_LIBRARY_PATH=. ./ifunc2 || exit 3
+readelf -a ./ifunc2 >> ifunc2.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./ifunc2
+comparelibs >> ifunc2.log 2>&1 || exit 5
diff --git a/testsuite/ifunc3.c b/testsuite/ifunc3.c
new file mode 100644 (file)
index 0000000..1f243d8
--- /dev/null
@@ -0,0 +1,32 @@
+#include "ifunc.h"
+
+static int bint11 (void) { return 1; }
+static int bint12 (void) { return 2; }
+
+IFUNC_LOCAL (bint1, bint11, bint12);
+
+static int lib2t21 (void) { return 1; }
+static int lib2t22 (void) { return 2; }
+
+IFUNC_GLOBAL (lib2t2, lib2t21, lib2t22);
+
+extern int lib1t2 (void);
+extern int lib1test (void);
+extern int lib2test (void);
+extern int (*lib1p1) (void);
+
+extern void abort (void);
+
+int
+main (void)
+{
+  lib1test ();
+  lib2test ();
+  if (bint1 () != PICKNO)
+    abort ();
+  if (lib1t2 () != PICKNO)
+    abort ();
+  if (lib1p1 () != PICKNO + 10)
+    abort ();
+  return 0;
+}
diff --git a/testsuite/ifunc3.sh b/testsuite/ifunc3.sh
new file mode 100755 (executable)
index 0000000..a54d4ec
--- /dev/null
@@ -0,0 +1,21 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+# First check if __thread is supported by ld.so/gcc/ld/as:
+$CCLINK -o ifunctest $srcdir/ifunctest.c -Wl,--rpath-link,. > /dev/null 2>&1 || exit 77
+( ./ifunctest || { rm -f ifunctest; exit 77; } ) 2>/dev/null || exit 77
+rm -f ifunctest ifunc3 ifunc3lib*.so ifunc3.log
+rm -f prelink.cache
+$CC -shared -O2 -fpic -o ifunc3lib1.so $srcdir/ifunc3lib1.c
+$CC -shared -O2 -fpic -o ifunc3lib2.so $srcdir/ifunc1lib2.c ifunc3lib1.so
+BINS="ifunc3"
+LIBS="ifunc3lib1.so ifunc3lib2.so"
+$CCLINK -o ifunc3 $srcdir/ifunc3.c -Wl,--rpath-link,. ifunc3lib2.so
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./ifunc3 >> ifunc3.log
+$PRELINK ${PRELINK_OPTS--vm} ./ifunc3 >> ifunc3.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` ifunc3.log && exit 2
+LD_LIBRARY_PATH=. ./ifunc3 || exit 3
+readelf -a ./ifunc3 >> ifunc3.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./ifunc3
+comparelibs >> ifunc3.log 2>&1 || exit 5
diff --git a/testsuite/ifunc3lib1.c b/testsuite/ifunc3lib1.c
new file mode 100644 (file)
index 0000000..133b389
--- /dev/null
@@ -0,0 +1,37 @@
+#include "ifunc.h"
+
+static int lib1t11 (void) { return 11; }
+static int lib1t12 (void) { return 12; }
+
+IFUNC_LOCAL (lib1t1, lib1t11, lib1t12);
+
+static int lib1t21 (void) { return 1; }
+static int lib1t22 (void) { return 2; }
+
+IFUNC_GLOBAL (lib1t2, lib1t21, lib1t22);
+
+static int lib1t31 (void) { return 3; }
+static int lib1t32 (void) { return 4; }
+
+IFUNC_GLOBAL (lib1t3, lib1t31, lib1t32);
+
+char lib1b1[4];
+char *lib1b2 = &lib1b1[2];
+
+extern void abort (void);
+
+int (*lib1p1) (void) = lib1t1;
+
+int
+lib1test (void)
+{
+  if (lib1t1 () != PICKNO + 10)
+    abort ();
+  if (lib1t3 () != PICKNO)
+    abort ();
+  if (lib1p1 () != PICKNO + 10)
+    abort ();
+  if (lib1b2 != lib1b1 + 2)
+    abort ();
+  return 0;
+}
diff --git a/testsuite/ifunctest.c b/testsuite/ifunctest.c
new file mode 100644 (file)
index 0000000..9ce7b1a
--- /dev/null
@@ -0,0 +1,16 @@
+#include "ifunc.h"
+
+static int foo1 (void) { return 1; }
+static int foo2 (void) { return 2; }
+
+IFUNC_LOCAL (foo, foo1, foo2);
+
+extern void abort (void);
+
+int
+main (void)
+{
+  if (foo () != PICKNO)
+    abort ();
+  return 0;
+}
diff --git a/testsuite/layout.C b/testsuite/layout.C
new file mode 100644 (file)
index 0000000..5047a34
--- /dev/null
@@ -0,0 +1,3 @@
+int main()
+{
+}
diff --git a/testsuite/layout1.sh b/testsuite/layout1.sh
new file mode 100755 (executable)
index 0000000..ee751ab
--- /dev/null
@@ -0,0 +1,22 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+rm -f prelink.cache
+rm -f layout1 layoutlib*.so layout1.log
+i=10
+BINS="layout1"
+LIBS=
+while [ $i -lt 74 ]; do
+  $CXX -shared -fpic -o layout1lib$i.so $srcdir/layoutlib.C
+  LIBS="$LIBS layout1lib$i.so"
+  i=`expr $i + 1`
+done
+$CXXLINK -o layout1 $srcdir/layout.C layout1lib*.so
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vR} ./layout1 > layout1.log
+$PRELINK ${PRELINK_OPTS--vR} ./layout1 >> layout1.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` layout1.log && exit 2
+LD_LIBRARY_PATH=. ./layout1 || exit 3
+readelf -a ./layout1 >> layout1.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./layout1
+comparelibs >> layout1.log 2>&1 || exit 5
diff --git a/testsuite/layout2.sh b/testsuite/layout2.sh
new file mode 100755 (executable)
index 0000000..7d8504b
--- /dev/null
@@ -0,0 +1,21 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+rm -f layout2 layout2lib*.so layout2.log
+i=1
+BINS="layout2"
+LIBS=
+while [ $i -lt 6 ]; do
+  $CXX -shared -fpic -o layout2lib$i.so $srcdir/layoutlib.C
+  LIBS="$LIBS layout2lib$i.so"
+  i=`expr $i + 1`
+done
+$CXXLINK -o layout2 $srcdir/layout.C layout2lib*.so
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vR} ./layout2 > layout2.log
+$PRELINK ${PRELINK_OPTS--vR} ./layout2 >> layout2.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` layout2.log && exit 2
+LD_LIBRARY_PATH=. ./layout2 || exit 3
+readelf -a ./layout2 >> layout2.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./layout2
+comparelibs >> layout2.log 2>&1 || exit 5
diff --git a/testsuite/layoutlib.C b/testsuite/layoutlib.C
new file mode 100644 (file)
index 0000000..8162515
--- /dev/null
@@ -0,0 +1,10 @@
+struct A
+  {
+    virtual int a();
+    int b;
+  };
+
+int A::a()
+{
+  return 10;
+}
diff --git a/testsuite/movelibs.sh b/testsuite/movelibs.sh
new file mode 100755 (executable)
index 0000000..4357ee8
--- /dev/null
@@ -0,0 +1,35 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+# This script copies needed C and C++ libraries into the test directory
+echo 'int main() { }' > movelibs.C
+$CXX -o movelibs movelibs.C
+> syslib.list
+> syslnk.list
+for i in `LD_TRACE_PRELINKING=1 LD_WARN= LD_TRACE_LOADED_OBJECTS=1 ./movelibs \
+         | awk '$1 !~ /^\.\/movelibs/ { print $3 } '`; do
+  k=`basename $i`
+  if [ -L $i ]; then
+    j=`ls -l $i | sed 's/^.* -> //'`
+    if echo $j | grep / >/dev/null 2>&1; then
+      cp -p $i .
+      echo $k >> syslib.list
+    else
+      cp -dp $i .
+      cp -p `dirname $i`/$j .
+      echo $j >> syslib.list
+      echo $k >> syslnk.list
+    fi
+  else
+    cp -p $i .
+    echo $k >> syslib.list
+  fi
+done
+rm -f movelibs.C movelibs
+pwd > prelink.conf
+for i in `cat syslib.list`; do
+  if readelf -WS $i 2>/dev/null | grep -q .gnu.prelink_undo; then
+    $PRELINK -u $i > /dev/null 2>&1 || exit 1
+  fi
+  cp -p $i $i.orig
+done
+exit 77
diff --git a/testsuite/quick1.c b/testsuite/quick1.c
new file mode 100644 (file)
index 0000000..dc98441
--- /dev/null
@@ -0,0 +1,21 @@
+#include "reloc1.h"
+#include <stdlib.h>
+
+static struct A local = { 77, &local, &bar + 4 };
+extern int baz;
+static char *bazp0 = (char *) &baz;
+static char *bazp1 = ((char *) &baz) + 1;
+
+int main()
+{
+  if (foo.a != 1 || foo.b != &foo || foo.c != &bar || bar != 26)
+    abort ();
+  if (f1 () != 11 || f2 () != 12)
+    abort ();
+  local.c -= 4;
+  if (local.a != 77 || local.b != &local || local.c != &bar)
+    abort ();
+  if (bazp1 - bazp0 != 1)
+    abort ();
+  exit (0);
+}
diff --git a/testsuite/quick1.sh b/testsuite/quick1.sh
new file mode 100755 (executable)
index 0000000..8974146
--- /dev/null
@@ -0,0 +1,188 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+check_one() {
+  cnt=0
+  log=$1
+  echo -n . >> quick1.log
+  text="$2"
+  shift 2
+  while [ $# -gt 0 ]; do
+    grep -q "^$text .*$1" $log || exit 40
+    cnt=$((++cnt))
+    shift
+  done
+  [ `grep "^$text " $log | wc -l` = $cnt ] || exit 41
+}
+check_log() {
+  log=$1
+  echo -n "Checking $1 " >> quick1.log
+  check_one $log 'Checking executable' $CHECKE
+  check_one $log 'Checking shared library' $CHECKL
+  check_one $log 'Assuming prelinked' $ASSUME
+  check_one $log 'Prelinking' $PREL
+  echo >> quick1.log
+}
+
+PRELINK=`echo $PRELINK \
+        | sed -e 's, \./\(prelink\.\(cache\|conf\)\), quick1.tree/etc/\1,g' \
+              -e 's,path=\.,path=quick1.tree/lib:quick1.tree/usr/lib,' \
+              -e 's,linker=\./,linker=quick1.tree/lib/,'`
+CCLINK=`echo $CCLINK \
+       | sed -e 's,linker=\./,linker=quick1.tree/lib/,'`
+rm -rf quick1.tree
+rm -f quick1.log
+mkdir -p quick1.tree/{lib,etc,usr/lib,usr/bin}
+$CC -shared -O2 -fpic -o quick1.tree/usr/lib/lib1.so $srcdir/reloc1lib1.c
+$CC -shared -O2 -fpic -o quick1.tree/usr/lib/lib2.so $srcdir/reloc1lib2.c \
+    -L quick1.tree/usr/lib -l1
+$CC -shared -O2 -fpic -o quick1.tree/usr/lib/lib3.so $srcdir/quick1lib1.c
+$CC -shared -O2 -fpic -o quick1.tree/usr/lib/lib2.later.so \
+    $srcdir/quick1lib2.c -L quick1.tree/usr/lib -l1 -l3
+echo 'int foo;' | $CC -shared -O2 -fpic -o quick1.tree/usr/lib/lib4.so -xc -
+$CC -shared -O2 -fpic -o quick1.tree/usr/lib/lib5.so $srcdir/quick1lib3.c \
+    -L quick1.tree/usr/lib -Wl,--rpath-link,quick1.tree/usr/lib -l2
+$CC -shared -O2 -fpic -o quick1.tree/usr/lib/lib6.so $srcdir/quick1lib4.c \
+    -L quick1.tree/usr/lib -Wl,--rpath-link,quick1.tree/usr/lib -l5
+echo 'int baz;' | $CC -shared -O2 -fpic -o quick1.tree/usr/lib/lib7.so -xc - \
+    -L quick1.tree/usr/lib -Wl,--rpath-link,quick1.tree/usr/lib -l6
+echo 'int baz;' | $CC -shared -O2 -fpic -o quick1.tree/usr/lib/lib7.later.so \
+    -xc - -L quick1.tree/usr/lib -Wl,--rpath-link,quick1.tree/usr/lib -l2
+for lib in `cat syslib.list`; do
+  cp -p $lib.orig quick1.tree/lib/$lib
+  cp -p $lib.orig quick1.tree/lib/$lib.orig
+done
+for lib in `cat syslnk.list`; do
+  cp -dp $lib quick1.tree/lib
+done
+$CCLINK -o quick1.tree/usr/bin/bin1 $srcdir/reloc1.c \
+    -Wl,--rpath-link,quick1.tree/usr/lib -L quick1.tree/usr/lib -l2
+echo 'int main () { extern int foo; return foo; }' \
+  | $CCLINK -o quick1.tree/usr/bin/bin2 -xc - -xnone \
+    -L quick1.tree/usr/lib -l4
+$CCLINK -o quick1.tree/usr/bin/bin3 $srcdir/reloc1.c \
+    -Wl,--rpath-link,quick1.tree/usr/lib -L quick1.tree/usr/lib -l7
+$CCLINK -o quick1.tree/usr/bin/bin4 $srcdir/quick1.c \
+    -Wl,--rpath-link,quick1.tree/usr/lib -L quick1.tree/usr/lib -l2
+$CCLINK -o quick1.tree/usr/bin/bin5 $srcdir/quick1.c \
+    -Wl,--rpath-link,quick1.tree/usr/lib -L quick1.tree/usr/lib -l7
+echo 'int main () { return 0; }' \
+  | $CCLINK -o quick1.tree/usr/bin/bin6 -xc - -xnone \
+    -Wl,--rpath-link,quick1.tree/usr/lib -L quick1.tree/usr/lib -l6
+cat > quick1.tree/etc/prelink.conf <<EOF
+quick1.tree/usr/bin
+quick1.tree/lib
+quick1.tree/usr/lib
+EOF
+LIBS="quick1.tree/usr/lib/lib1.so quick1.tree/usr/lib/lib2.so"
+LIBS="$LIBS quick1.tree/usr/lib/lib3.so quick1.tree/usr/lib/lib4.so"
+LIBS="$LIBS quick1.tree/usr/lib/lib5.so quick1.tree/usr/lib/lib6.so"
+LIBS="$LIBS quick1.tree/usr/lib/lib7.so"
+LIBS="$LIBS `sed 's|^|quick1.tree/lib/|' syslib.list`"
+BINS="quick1.tree/usr/bin/bin1 quick1.tree/usr/bin/bin2"
+BINS="$BINS quick1.tree/usr/bin/bin3 quick1.tree/usr/bin/bin4"
+BINS="$BINS quick1.tree/usr/bin/bin5 quick1.tree/usr/bin/bin6"
+savelibs
+chmod 644 `ls $BINS | sed 's|$|.orig|'`
+# Make sure prelinked binaries and libraries will have different ctimes
+# than mtimes
+sleep 3s
+# lib2.later.so needs different timestamps than lib2.so for the tests below
+touch quick1.tree/usr/lib/lib2.later.so
+cp -p quick1.tree/usr/lib/lib2.later.so{,.orig}
+# lib7.later.so needs different timestamps than lib7.so for the tests below
+touch quick1.tree/usr/lib/lib7.later.so
+cp -p quick1.tree/usr/lib/lib7.later.so{,.orig}
+echo $PRELINK ${PRELINK_OPTS--vm} -avvvvv > quick1.log
+$PRELINK ${PRELINK_OPTS--vm} -avvvvv > quick1.tree/etc/log1 2>&1 || exit 1
+cat quick1.tree/etc/log1 >> quick1.log
+echo $PRELINK ${PRELINK_OPTS--vm} -aqvvvvv >> quick1.log
+$PRELINK ${PRELINK_OPTS--vm} -aqvvvvv > quick1.tree/etc/log2 2>&1 || exit 2
+cat quick1.tree/etc/log2 >> quick1.log
+stat quick1.tree/usr/lib/lib2.so >> quick1.log
+echo chmod 644 quick1.tree/usr/lib/lib2.so >> quick1.log
+chmod 644 quick1.tree/usr/lib/lib2.so
+sleep 3s
+echo chmod 755 quick1.tree/usr/lib/lib2.so >> quick1.log
+chmod 755 quick1.tree/usr/lib/lib2.so
+stat quick1.tree/usr/lib/lib2.so >> quick1.log
+echo $PRELINK ${PRELINK_OPTS--vm} -aqvvvvv >> quick1.log
+$PRELINK ${PRELINK_OPTS--vm} -aqvvvvv > quick1.tree/etc/log3 2>&1 || exit 3
+cat quick1.tree/etc/log3 >> quick1.log
+echo $PRELINK ${PRELINK_OPTS--vm} -aqvvvvv >> quick1.log
+$PRELINK ${PRELINK_OPTS--vm} -aqvvvvv > quick1.tree/etc/log4 2>&1 || exit 4
+cat quick1.tree/etc/log4 >> quick1.log
+LD_LIBRARY_PATH=quick1.tree/lib:quick1.tree/usr/lib quick1.tree/usr/bin/bin1 || exit 5
+LD_LIBRARY_PATH=quick1.tree/lib:quick1.tree/usr/lib quick1.tree/usr/bin/bin2 || exit 6
+LD_LIBRARY_PATH=quick1.tree/lib:quick1.tree/usr/lib quick1.tree/usr/bin/bin3 || exit 7
+LD_LIBRARY_PATH=quick1.tree/lib:quick1.tree/usr/lib quick1.tree/usr/bin/bin4 || exit 8
+LD_LIBRARY_PATH=quick1.tree/lib:quick1.tree/usr/lib quick1.tree/usr/bin/bin5 || exit 9
+LD_LIBRARY_PATH=quick1.tree/lib:quick1.tree/usr/lib quick1.tree/usr/bin/bin6 || exit 10
+readelf -a quick1.tree/usr/bin/bin1 >> quick1.log 2>&1 || exit 11
+readelf -a quick1.tree/usr/bin/bin3 >> quick1.log 2>&1 || exit 12
+readelf -a quick1.tree/usr/bin/bin4 >> quick1.log 2>&1 || exit 13
+readelf -a quick1.tree/usr/bin/bin5 >> quick1.log 2>&1 || exit 14
+readelf -a quick1.tree/usr/bin/bin6 >> quick1.log 2>&1 || exit 15
+BINS="quick1.tree/usr/bin/bin1 quick1.tree/usr/bin/bin3"
+BINS="$BINS quick1.tree/usr/bin/bin4 quick1.tree/usr/bin/bin5"
+BINS="$BINS quick1.tree/usr/bin/bin6"
+LIBS="quick1.tree/usr/lib/lib2.so quick1.tree/usr/lib/lib7.so"
+comparelibs >> quick1.log 2>&1 || exit 16
+for l in 2 7; do
+  mv -f quick1.tree/usr/lib/lib$l.so{,.old}
+  mv -f quick1.tree/usr/lib/lib$l.so{,.old}.orig
+  cp -p quick1.tree/usr/lib/lib$l{.later,}.so
+  cp -p quick1.tree/usr/lib/lib$l{.later,}.so.orig
+done
+for b in 1 3 4 5 6; do
+  cp -p quick1.tree/usr/bin/bin$b{,.old}
+  chmod 644 quick1.tree/usr/bin/bin$b.old
+done
+echo $PRELINK ${PRELINK_OPTS--vm} -aqvvvvv >> quick1.log
+$PRELINK ${PRELINK_OPTS--vm} -aqvvvvv > quick1.tree/etc/log5 2>&1 || exit 17
+cat quick1.tree/etc/log5 >> quick1.log
+LD_LIBRARY_PATH=quick1.tree/lib:quick1.tree/usr/lib quick1.tree/usr/bin/bin1 || exit 18
+LD_LIBRARY_PATH=quick1.tree/lib:quick1.tree/usr/lib quick1.tree/usr/bin/bin2 || exit 19
+LD_LIBRARY_PATH=quick1.tree/lib:quick1.tree/usr/lib quick1.tree/usr/bin/bin3 || exit 20
+LD_LIBRARY_PATH=quick1.tree/lib:quick1.tree/usr/lib quick1.tree/usr/bin/bin4 || exit 21
+LD_LIBRARY_PATH=quick1.tree/lib:quick1.tree/usr/lib quick1.tree/usr/bin/bin5 || exit 22
+LD_LIBRARY_PATH=quick1.tree/lib:quick1.tree/usr/lib quick1.tree/usr/bin/bin6 || exit 23
+readelf -a quick1.tree/usr/bin/bin1 >> quick1.log 2>&1 || exit 24
+readelf -a quick1.tree/usr/bin/bin3 >> quick1.log 2>&1 || exit 25
+readelf -a quick1.tree/usr/bin/bin4 >> quick1.log 2>&1 || exit 26
+readelf -a quick1.tree/usr/bin/bin5 >> quick1.log 2>&1 || exit 27
+readelf -a quick1.tree/usr/bin/bin6 >> quick1.log 2>&1 || exit 28
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` quick1.log && exit 29
+L=quick1.tree/usr/lib/lib
+L1=${L}1.so; L2=${L}2.so; L3=${L}3.so; L4=${L}4.so
+L5=${L}5.so; L6=${L}6.so; L7=${L}7.so
+B=quick1.tree/usr/bin/bin
+B1=${B}1; B2=${B}2; B3=${B}3; B4=${B}4; B5=${B}5; B6=${B}6
+SL=`grep -f syslib.list quick1.tree/etc/log1 \
+    | sed -n '/^Prelinking/s|^.*\(quick1.tree/lib/\)|\1|p'`
+CHECKE="$B1 $B2 $B3 $B4 $B5 $B6"; CHECKL="$SL $L1 $L2 $L4 $L5 $L6 $L7" PREL="$CHECKE $CHECKL"; ASSUME=""
+check_log quick1.tree/etc/log1
+CHECKE=""; CHECKL=""; PREL=""; ASSUME="$B1 $B2 $B3 $B4 $B5 $B6 $SL $L1 $L2 $L4 $L5 $L6 $L7"
+check_log quick1.tree/etc/log2
+CHECKE="$B1 $B3 $B4 $B5 $B6"; CHECKL="$SL $L1 $L2 $L5 $L6 $L7"; PREL=""; ASSUME="$B2 $L4"
+check_log quick1.tree/etc/log3
+CHECKE=""; CHECKL=""; PREL=""; ASSUME="$B1 $B2 $B3 $B4 $B5 $B6 $SL $L1 $L2 $L4 $L5 $L6 $L7"
+check_log quick1.tree/etc/log4
+CHECKE="$B1 $B3 $B4 $B5 $B6"; CHECKL="$SL $L1 $L2 $L3 $L5 $L7 $L7"; PREL="$B1 $B3 $B4 $B5 $B6 $L2 $L3 $L5 $L6 $L7"; ASSUME="$B2 $L4"
+check_log quick1.tree/etc/log5
+BINS="$B1 $B2 $B3 $B4 $B5 $B6"
+LIBS="$SL $L1 $L2 $L3 $L4 $L5 $L6 $L7 $L2.old"
+comparelibs >> quick1.log 2>&1 || exit 30
+for i in $BINS $SL $L1 $L2 $L3 $L4 $L5 $L6 $L7; do
+  cp -p $i $i.prelinked
+done
+for i in $BINS; do
+  chmod 644 $i.prelinked
+done
+echo $PRELINK -uavvvvvv >> quick1.log
+$PRELINK -uavvvvvv >> quick1.log 2>&1 || exit 31
+for i in $BINS $SL $L1 $L2 $L3 $L4 $L5 $L6 $L7; do
+  cmp -s $i.orig $i || exit 32
+  mv -f $i.prelinked $i
+done
+chmod 755 $BINS
+exit 0
diff --git a/testsuite/quick1lib1.c b/testsuite/quick1lib1.c
new file mode 100644 (file)
index 0000000..41767ce
--- /dev/null
@@ -0,0 +1,9 @@
+int q1 (void)
+{
+  return q2 () + 1;
+}
+
+int q2 (void)
+{
+  return 77;
+}
diff --git a/testsuite/quick1lib2.c b/testsuite/quick1lib2.c
new file mode 100644 (file)
index 0000000..b545086
--- /dev/null
@@ -0,0 +1,11 @@
+extern int q1 (void);
+
+int f1 (void)
+{
+  return q1 () + 1;
+}
+
+int q2 (void)
+{
+  return 9;
+}
diff --git a/testsuite/quick1lib3.c b/testsuite/quick1lib3.c
new file mode 100644 (file)
index 0000000..06760a3
--- /dev/null
@@ -0,0 +1,7 @@
+#ifndef D1
+#define D1(n) int qvar##n; int *qpvar##n = &qvar##n;
+#endif
+#define D2(n) D1(n##0) D1(n##1) D1(n##2) D1(n##3) D1(n##4)
+#define D3(n) D2(n##0) D2(n##1) D2(n##2) D2(n##3) D2(n##4)
+#define D4(n) D3(n##0) D3(n##1) D3(n##2) D3(n##3) D3(n##4)
+D4(0) D4(1)
diff --git a/testsuite/quick1lib4.c b/testsuite/quick1lib4.c
new file mode 100644 (file)
index 0000000..53e23d7
--- /dev/null
@@ -0,0 +1,2 @@
+#define D1(n) int qvar##n;
+#include "quick1lib3.c"
diff --git a/testsuite/quick2.sh b/testsuite/quick2.sh
new file mode 100755 (executable)
index 0000000..b999786
--- /dev/null
@@ -0,0 +1,258 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+check_one() {
+  cnt=0
+  log=$1
+  echo -n . >> quick2.log
+  text="$2"
+  shift 2
+  while [ $# -gt 0 ]; do
+    grep -q "^$text .*$1" $log || exit 40
+    cnt=$((++cnt))
+    shift
+  done
+  [ `grep "^$text " $log | wc -l` = $cnt ] || exit 41
+}
+check_log() {
+  log=$1
+  echo -n "Checking $1 " >> quick2.log
+  check_one $log 'Checking executable' $CHECKE
+  check_one $log 'Checking shared library' $CHECKL
+  check_one $log 'Assuming prelinked' $ASSUME
+  check_one $log 'Prelinking' $PREL
+  check_one $log 'Assuming non-prelinkable' $UNPREL
+  echo >> quick2.log
+}
+
+PRELINK=`echo $PRELINK \
+        | sed -e 's, \./\(prelink\.\(cache\|conf\)\), quick2.tree/etc/\1,g' \
+              -e 's,path=\.,path=quick2.tree/lib:quick2.tree/usr/lib,' \
+              -e 's,linker=\./,linker=quick2.tree/lib/,'`
+CCLINK=`echo $CCLINK \
+       | sed -e 's,linker=\./,linker=quick2.tree/lib/,'`
+rm -rf quick2.tree
+rm -f quick2.log
+mkdir -p quick2.tree/{lib,etc,usr/lib,usr/bin}
+$CC -shared -O2 -fpic -o quick2.tree/usr/lib/lib1.so $srcdir/reloc1lib1.c
+$CC -shared -O2 -fpic -o quick2.tree/usr/lib/lib2.so $srcdir/reloc1lib2.c \
+    -L quick2.tree/usr/lib -l1
+$CC -shared -O2 -fpic -o quick2.tree/usr/lib/lib3.so $srcdir/quick1lib1.c
+$CC -shared -O2 -fpic -o quick2.tree/usr/lib/lib2.later.so \
+    $srcdir/quick1lib2.c -L quick2.tree/usr/lib -l1 -l3
+echo 'int foo;' | $CC -shared -O2 -fpic -o quick2.tree/usr/lib/lib4.so -xc -
+$CC -shared -O2 -fpic -o quick2.tree/usr/lib/lib5.so $srcdir/quick1lib3.c \
+    -L quick2.tree/usr/lib -Wl,--rpath-link,quick2.tree/usr/lib -l2
+$CC -shared -O2 -fpic -o quick2.tree/usr/lib/lib6.so $srcdir/quick1lib4.c \
+    -L quick2.tree/usr/lib -Wl,--rpath-link,quick2.tree/usr/lib -l5
+echo 'int baz;' | $CC -shared -O2 -fpic -o quick2.tree/usr/lib/lib7.so -xc - \
+    -L quick2.tree/usr/lib -Wl,--rpath-link,quick2.tree/usr/lib -l6 \
+    -Wl,--spare-dynamic-tags=0
+echo 'int baz;' | $CC -shared -O2 -fpic -o quick2.tree/usr/lib/lib7.later.so \
+    -xc - -L quick2.tree/usr/lib -Wl,--rpath-link,quick2.tree/usr/lib -l2
+for lib in `cat syslib.list`; do
+  cp -p $lib.orig quick2.tree/lib/$lib
+  cp -p $lib.orig quick2.tree/lib/$lib.orig
+done
+for lib in `cat syslnk.list`; do
+  cp -dp $lib quick2.tree/lib
+done
+$CCLINK -o quick2.tree/usr/bin/bin1 $srcdir/reloc1.c \
+    -Wl,--rpath-link,quick2.tree/usr/lib -L quick2.tree/usr/lib -l2
+echo 'int main () { extern int foo; return foo; }' \
+  | $CCLINK -o quick2.tree/usr/bin/bin2 -xc - -xnone \
+    -L quick2.tree/usr/lib -l4
+$CCLINK -o quick2.tree/usr/bin/bin3 $srcdir/reloc1.c \
+    -Wl,--rpath-link,quick2.tree/usr/lib -L quick2.tree/usr/lib -l7
+$CCLINK -o quick2.tree/usr/bin/bin4 $srcdir/quick1.c \
+    -Wl,--rpath-link,quick2.tree/usr/lib -L quick2.tree/usr/lib -l2
+$CCLINK -o quick2.tree/usr/bin/bin5 $srcdir/quick1.c \
+    -Wl,--rpath-link,quick2.tree/usr/lib -L quick2.tree/usr/lib -l7
+echo 'int main () { return 0; }' \
+  | $CCLINK -o quick2.tree/usr/bin/bin6 -xc - -xnone \
+    -Wl,--rpath-link,quick2.tree/usr/lib -L quick2.tree/usr/lib -l6
+echo 'int main () { return 0; }' \
+  | $CCLINK -o quick2.tree/usr/bin/bin7 -static -xc - -xnone
+cat > quick2.tree/usr/bin/bin8 <<EOF
+#!/bin/sh
+echo This is a sample shell script
+echo used to test whether even shell scripts
+echo and other executable non-ELF files
+echo are cached as non-prelinkable
+echo in /etc/prelink.cache and thus do not
+echo need to be reread every time prelink -aq
+echo is run.
+exit 0
+EOF
+chmod 755 quick2.tree/usr/bin/bin8
+cat > quick2.tree/usr/bin/bin9.sh <<EOF
+#!/bin/sh
+echo This is another sample shell script,
+echo this time with a .sh extension.
+echo This does not need to be even cached
+echo as non-prelinkable, provided -b *.sh
+echo is present in prelink.conf.
+exit 0
+EOF
+chmod 755 quick2.tree/usr/bin/bin9.sh
+cat > quick2.tree/usr/bin/bin10.py <<EOF
+#! /usr/bin/env python
+print "This is a sample python script."
+print "This does not need to be even cached"
+print "as non-prelinkable, provided -b *.py"
+print "is present in prelink.conf."
+EOF
+chmod 755 quick2.tree/usr/bin/bin10.py
+cat > quick2.tree/usr/bin/bin11.script <<EOF
+#!/bin/sh
+echo This is another sample shell script,
+echo this time matching b*11*r[hijk]*t shell pattern.
+echo This does not need to be even cached
+echo as non-prelinkable, provided -b b*11*r[hijk]*t
+echo is present in prelink.conf.
+exit 0
+EOF
+chmod 755 quick2.tree/usr/bin/bin11.script
+echo 'int main () { return 0; }' \
+  | $CCLINK -o quick2.tree/usr/bin/bin12 -pie -fPIE -xc - -xnone
+cat > quick2.tree/etc/prelink.conf <<EOF
+-b *.sh
+-c quick2.tree/etc/prelink.conf.d/*.conf
+EOF
+mkdir quick2.tree/etc/prelink.conf.d
+echo '-b *.py' > quick2.tree/etc/prelink.conf.d/py.conf
+echo '-b b*11*r[hijk]*t' > quick2.tree/etc/prelink.conf.d/script.conf
+cat > quick2.tree/etc/prelink.conf.d/rest.conf <<EOF
+quick2.tree/usr/bin
+quick2.tree/lib
+quick2.tree/usr/lib
+EOF
+LIBS="quick2.tree/usr/lib/lib1.so quick2.tree/usr/lib/lib2.so"
+LIBS="$LIBS quick2.tree/usr/lib/lib3.so quick2.tree/usr/lib/lib4.so"
+LIBS="$LIBS quick2.tree/usr/lib/lib5.so quick2.tree/usr/lib/lib6.so"
+LIBS="$LIBS quick2.tree/usr/lib/lib7.so"
+LIBS="$LIBS `sed 's|^|quick2.tree/lib/|' syslib.list`"
+BINS="quick2.tree/usr/bin/bin1 quick2.tree/usr/bin/bin2"
+BINS="$BINS quick2.tree/usr/bin/bin3 quick2.tree/usr/bin/bin4"
+BINS="$BINS quick2.tree/usr/bin/bin5 quick2.tree/usr/bin/bin6"
+BINS="$BINS quick2.tree/usr/bin/bin7 quick2.tree/usr/bin/bin8"
+savelibs
+chmod 644 `ls $BINS | sed 's|$|.orig|'`
+# Make sure prelinked binaries and libraries will have different ctimes
+# than mtimes
+sleep 3s
+# lib2.later.so needs different timestamps than lib2.so for the tests below
+touch quick2.tree/usr/lib/lib2.later.so
+cp -p quick2.tree/usr/lib/lib2.later.so{,.orig}
+# lib7.later.so needs different timestamps than lib7.so for the tests below
+touch quick2.tree/usr/lib/lib7.later.so
+cp -p quick2.tree/usr/lib/lib7.later.so{,.orig}
+echo $PRELINK ${PRELINK_OPTS--vm} -avvvvv > quick2.log
+$PRELINK ${PRELINK_OPTS--vm} -avvvvv > quick2.tree/etc/log1 2>&1 || exit 1
+cat quick2.tree/etc/log1 >> quick2.log
+grep -q 'lib7.so: Not enough room to add .dynamic entry' \
+  quick2.tree/etc/log1 || exit 60
+grep -q 'Could not prelink .*bin3 because its dependency .*lib7.so could not be prelinked' \
+  quick2.tree/etc/log1 || exit 61
+grep -q 'Could not prelink .*bin5 because its dependency .*lib7.so could not be prelinked' \
+  quick2.tree/etc/log1 || exit 62
+echo $PRELINK ${PRELINK_OPTS--vm} -aqvvvvv >> quick2.log
+$PRELINK ${PRELINK_OPTS--vm} -aqvvvvv > quick2.tree/etc/log2 2>&1 || exit 2
+cat quick2.tree/etc/log2 >> quick2.log
+stat quick2.tree/usr/lib/lib2.so >> quick2.log
+echo chmod 644 quick2.tree/usr/lib/lib2.so >> quick2.log
+chmod 644 quick2.tree/usr/lib/lib2.so
+sleep 3s
+echo chmod 755 quick2.tree/usr/lib/lib2.so >> quick2.log
+chmod 755 quick2.tree/usr/lib/lib2.so
+stat quick2.tree/usr/lib/lib2.so >> quick2.log
+echo $PRELINK ${PRELINK_OPTS--vm} -aqvvvvv >> quick2.log
+$PRELINK ${PRELINK_OPTS--vm} -aqvvvvv > quick2.tree/etc/log3 2>&1 || exit 3
+cat quick2.tree/etc/log3 >> quick2.log
+grep -q 'lib7.so: Not enough room to add .dynamic entry' \
+  quick2.tree/etc/log3 || exit 63
+grep -q 'Could not prelink .*bin3 because its dependency .*lib7.so could not be prelinked' \
+  quick2.tree/etc/log3 || exit 64
+grep -q 'Could not prelink .*bin5 because its dependency .*lib7.so could not be prelinked' \
+  quick2.tree/etc/log3 || exit 65
+echo $PRELINK ${PRELINK_OPTS--vm} -aqvvvvv >> quick2.log
+$PRELINK ${PRELINK_OPTS--vm} -aqvvvvv > quick2.tree/etc/log4 2>&1 || exit 4
+cat quick2.tree/etc/log4 >> quick2.log
+LD_LIBRARY_PATH=quick2.tree/lib:quick2.tree/usr/lib quick2.tree/usr/bin/bin1 || exit 5
+LD_LIBRARY_PATH=quick2.tree/lib:quick2.tree/usr/lib quick2.tree/usr/bin/bin2 || exit 6
+LD_LIBRARY_PATH=quick2.tree/lib:quick2.tree/usr/lib quick2.tree/usr/bin/bin3 || exit 7
+LD_LIBRARY_PATH=quick2.tree/lib:quick2.tree/usr/lib quick2.tree/usr/bin/bin4 || exit 8
+LD_LIBRARY_PATH=quick2.tree/lib:quick2.tree/usr/lib quick2.tree/usr/bin/bin5 || exit 9
+LD_LIBRARY_PATH=quick2.tree/lib:quick2.tree/usr/lib quick2.tree/usr/bin/bin6 || exit 10
+readelf -a quick2.tree/usr/bin/bin1 >> quick2.log 2>&1 || exit 11
+readelf -a quick2.tree/usr/bin/bin3 >> quick2.log 2>&1 || exit 12
+readelf -a quick2.tree/usr/bin/bin4 >> quick2.log 2>&1 || exit 13
+readelf -a quick2.tree/usr/bin/bin5 >> quick2.log 2>&1 || exit 14
+readelf -a quick2.tree/usr/bin/bin6 >> quick2.log 2>&1 || exit 15
+BINS="quick2.tree/usr/bin/bin1 quick2.tree/usr/bin/bin4"
+BINS="$BINS quick2.tree/usr/bin/bin6"
+LIBS="quick2.tree/usr/lib/lib2.so"
+comparelibs >> quick2.log 2>&1 || exit 16
+for l in 2 7; do
+  mv -f quick2.tree/usr/lib/lib$l.so{,.old}
+  mv -f quick2.tree/usr/lib/lib$l.so{,.old}.orig
+  cp -p quick2.tree/usr/lib/lib$l{.later,}.so
+  cp -p quick2.tree/usr/lib/lib$l{.later,}.so.orig
+done
+for b in 1 3 4 5 6; do
+  cp -p quick2.tree/usr/bin/bin$b{,.old}
+  chmod 644 quick2.tree/usr/bin/bin$b.old
+done
+echo $PRELINK ${PRELINK_OPTS--vm} -aqvvvvv >> quick2.log
+$PRELINK ${PRELINK_OPTS--vm} -aqvvvvv > quick2.tree/etc/log5 2>&1 || exit 17
+cat quick2.tree/etc/log5 >> quick2.log
+LD_LIBRARY_PATH=quick2.tree/lib:quick2.tree/usr/lib quick2.tree/usr/bin/bin1 || exit 18
+LD_LIBRARY_PATH=quick2.tree/lib:quick2.tree/usr/lib quick2.tree/usr/bin/bin2 || exit 19
+LD_LIBRARY_PATH=quick2.tree/lib:quick2.tree/usr/lib quick2.tree/usr/bin/bin3 || exit 20
+LD_LIBRARY_PATH=quick2.tree/lib:quick2.tree/usr/lib quick2.tree/usr/bin/bin4 || exit 21
+LD_LIBRARY_PATH=quick2.tree/lib:quick2.tree/usr/lib quick2.tree/usr/bin/bin5 || exit 22
+LD_LIBRARY_PATH=quick2.tree/lib:quick2.tree/usr/lib quick2.tree/usr/bin/bin6 || exit 23
+readelf -a quick2.tree/usr/bin/bin1 >> quick2.log 2>&1 || exit 24
+readelf -a quick2.tree/usr/bin/bin3 >> quick2.log 2>&1 || exit 25
+readelf -a quick2.tree/usr/bin/bin4 >> quick2.log 2>&1 || exit 26
+readelf -a quick2.tree/usr/bin/bin5 >> quick2.log 2>&1 || exit 27
+readelf -a quick2.tree/usr/bin/bin6 >> quick2.log 2>&1 || exit 28
+# In both etc/log1 and etc/log3 there should be one
+# "Not enough room" and two "Could not prelink" warnings.
+[ $(grep ^`echo $PRELINK | sed 's/ .*$/: /'` quick2.log | wc -l) -eq 6 ] || exit 29
+L=quick2.tree/usr/lib/lib
+L1=${L}1.so; L2=${L}2.so; L3=${L}3.so; L4=${L}4.so
+L5=${L}5.so; L6=${L}6.so; L7=${L}7.so
+B=quick2.tree/usr/bin/bin
+B1=${B}1; B2=${B}2; B3=${B}3; B4=${B}4; B5=${B}5
+B6=${B}6; B7=${B}7; B8=${B}8; B12=${B}12
+SL=`grep -f syslib.list quick2.tree/etc/log1 \
+    | sed -n '/^Prelinking/s|^.*\(quick2.tree/lib/\)|\1|p'`
+CHECK_E="$B1 $B2 $B4 $B6"; CHECKE="$CHECK_E $B3 $B5 $B7"
+CHECKL="$SL $L1 $L2 $L4 $L5 $L6 $L7"; PREL="$CHECK_E $CHECKL"; ASSUME=""; UNPREL=""
+check_log quick2.tree/etc/log1
+CHECKE=""; CHECKL=""; PREL=""; ASSUME="$B1 $B2 $B4 $B6 $SL $L1 $L2 $L4 $L5 $L6"
+UNPREL="$B3 $B5 $B7 $B8 $B12 $L7"
+check_log quick2.tree/etc/log2
+CHECKE="$B1 $B3 $B4 $B5 $B6"; CHECKL="$SL $L1 $L2 $L5 $L6 $L7"; PREL="$L7"; ASSUME="$B2 $L4"; UNPREL="$B7 $B8 $B12"
+check_log quick2.tree/etc/log3
+CHECKE=""; CHECKL=""; PREL=""; ASSUME="$B1 $B2 $B4 $B6 $SL $L1 $L2 $L4 $L5 $L6"; UNPREL="$B3 $B5 $B7 $B8 $B12 $L7"
+check_log quick2.tree/etc/log4
+CHECKE="$B1 $B3 $B4 $B5 $B6"; CHECKL="$SL $L1 $L2 $L3 $L5 $L7 $L7"; PREL="$B1 $B3 $B4 $B5 $B6 $L2 $L3 $L5 $L6 $L7"; ASSUME="$B2 $L4"; UNPREL="$B7 $B8 $B12"
+check_log quick2.tree/etc/log5
+BINS="$B1 $B2 $B3 $B4 $B5 $B6"
+LIBS="$SL $L1 $L2 $L3 $L4 $L5 $L6 $L7 $L2.old"
+comparelibs >> quick2.log 2>&1 || exit 30
+for i in $BINS $SL $L1 $L2 $L3 $L4 $L5 $L6 $L7; do
+  cp -p $i $i.prelinked
+done
+for i in $BINS; do
+  chmod 644 $i.prelinked
+done
+echo $PRELINK -uavvvvvv >> quick2.log
+$PRELINK -uavvvvvv >> quick2.log 2>&1 || exit 31
+for i in $BINS $SL $L1 $L2 $L3 $L4 $L5 $L6 $L7; do
+  cmp -s $i.orig $i || exit 32
+  mv -f $i.prelinked $i
+done
+chmod 755 $BINS
+exit 0
diff --git a/testsuite/quick3.sh b/testsuite/quick3.sh
new file mode 100755 (executable)
index 0000000..00d2aad
--- /dev/null
@@ -0,0 +1,108 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+check_one() {
+  cnt=0
+  log=$1
+  echo -n . >> quick3.log
+  text="$2"
+  shift 2
+  while [ $# -gt 0 ]; do
+    grep -q "^$text .*$1" $log || exit 40
+    cnt=$((++cnt))
+    shift
+  done
+  [ `grep "^$text " $log | wc -l` = $cnt ] || exit 41
+}
+check_log() {
+  log=$1
+  echo -n "Checking $1 " >> quick3.log
+  check_one $log 'Checking executable' $CHECKE
+  check_one $log 'Checking shared library' $CHECKL
+  check_one $log 'Assuming prelinked' $ASSUME
+  check_one $log 'Prelinking' $PREL
+  echo >> quick3.log
+}
+
+PRELINK=`echo $PRELINK \
+        | sed -e 's, \./\(prelink\.\(cache\|conf\)\), quick3.tree/etc/\1,g' \
+              -e 's,path=\.,path=quick3.tree/lib:quick3.tree/usr/lib,' \
+              -e 's,linker=\./,linker=quick3.tree/lib/,'`
+CCLINK=`echo $CCLINK \
+       | sed -e 's,linker=\./,linker=quick3.tree/lib/,'`
+rm -rf quick3.tree
+rm -f quick3.log
+mkdir -p quick3.tree/{lib,etc,usr/lib,usr/bin}
+$CC -shared -O2 -fpic -o quick3.tree/usr/lib/lib1.so $srcdir/reloc1lib1.c
+$CC -shared -O2 -fpic -o quick3.tree/usr/lib/lib2.so $srcdir/reloc1lib2.c \
+    -L quick3.tree/usr/lib -l1 -Wl,-soname,lib2.so
+for lib in `cat syslib.list`; do
+  cp -p $lib.orig quick3.tree/lib/$lib
+  cp -p $lib.orig quick3.tree/lib/$lib.orig
+done
+for lib in `cat syslnk.list`; do
+  cp -dp $lib quick3.tree/lib
+done
+$CCLINK -o quick3.tree/usr/bin/bin1 $srcdir/reloc1.c \
+    -Wl,--rpath-link,quick3.tree/usr/lib -L quick3.tree/usr/lib -l2
+cat > quick3.tree/etc/prelink.conf <<EOF
+quick3.tree/usr/bin
+quick3.tree/lib
+quick3.tree/usr/lib
+EOF
+LIBS="quick3.tree/usr/lib/lib1.so quick3.tree/usr/lib/lib2.so"
+LIBS="$LIBS `sed 's|^|quick3.tree/lib/|' syslib.list`"
+BINS="quick3.tree/usr/bin/bin1"
+savelibs
+chmod 644 `ls $BINS | sed 's|$|.orig|'`
+# Make sure prelinked binaries and libraries will have different ctimes
+# than mtimes
+sleep 3s
+echo $PRELINK ${PRELINK_OPTS--vm} -avvvvv > quick3.log
+$PRELINK ${PRELINK_OPTS--vm} -avvvvv > quick3.tree/etc/log1 2>&1 || exit 1
+cat quick3.tree/etc/log1 >> quick3.log
+echo $PRELINK ${PRELINK_OPTS--vm} -aqvvvvv >> quick3.log
+$PRELINK ${PRELINK_OPTS--vm} -aqvvvvv > quick3.tree/etc/log2 2>&1 || exit 2
+cat quick3.tree/etc/log2 >> quick3.log
+$CC -shared -O2 -fpic -o quick3.tree/usr/lib/lib2.so.0 $srcdir/reloc1lib2.c \
+    -L quick3.tree/usr/lib -l1 -Wl,-soname,lib2.so
+rm -f quick3.tree/usr/lib/lib2.so{,.orig}
+cp -p quick3.tree/usr/lib/lib2.so.0{,.orig}
+ln -sf lib2.so.0 quick3.tree/usr/lib/lib2.so
+sleep 3s
+echo $PRELINK ${PRELINK_OPTS--vm} -aqvvvvv >> quick3.log
+$PRELINK ${PRELINK_OPTS--vm} -aqvvvvv > quick3.tree/etc/log3 2>&1 || exit 3
+cat quick3.tree/etc/log3 >> quick3.log
+LD_LIBRARY_PATH=quick3.tree/lib:quick3.tree/usr/lib quick3.tree/usr/bin/bin1 || exit 4
+LIBS="quick3.tree/usr/lib/lib1.so quick3.tree/usr/lib/lib2.so.0"
+echo $PRELINK ${PRELINK_OPTS--vm} -aqvvvvv >> quick3.log
+$PRELINK ${PRELINK_OPTS--vm} -aqvvvvv > quick3.tree/etc/log4 2>&1 || exit 5
+cat quick3.tree/etc/log4 >> quick3.log
+comparelibs >> quick3.log 2>&1 || exit 6
+[ -L quick3.tree/usr/lib/lib2.so ] || exit 7
+L=quick3.tree/usr/lib/lib
+L1=${L}1.so; L2=${L}2.so; L3=${L}2.so.0
+B1=quick3.tree/usr/bin/bin1
+SL=`grep -f syslib.list quick3.tree/etc/log1 \
+    | sed -n '/^Prelinking/s|^.*\(quick3.tree/lib/\)|\1|p'`
+CHECKE="$B1"; CHECKL="$SL $L1 $L2" PREL="$CHECKE $CHECKL"; ASSUME=""
+check_log quick3.tree/etc/log1
+CHECKE=""; CHECKL=""; PREL=""; ASSUME="$B1 $L1 $L2 $SL"
+check_log quick3.tree/etc/log2
+CHECKE="$B1"; CHECKL="$SL $L1 $L3"; PREL="$B1 $L3"; ASSUME=""
+check_log quick3.tree/etc/log3
+CHECKE=""; CHECKL=""; PREL=""; ASSUME="$B1 $L1 $L3 $SL"
+check_log quick3.tree/etc/log4
+for i in $B1 $SL $L1 $L3; do
+  cp -p $i $i.prelinked
+done
+for i in $B1; do
+  chmod 644 $i.prelinked
+done
+echo $PRELINK -uavvvvvv >> quick3.log
+$PRELINK -uavvvvvv >> quick3.log 2>&1 || exit 31
+for i in $B1 $SL $L1 $L3; do
+  cmp -s $i.orig $i || exit 32
+  mv -f $i.prelinked $i
+done
+chmod 755 $BINS
+exit 0
diff --git a/testsuite/reloc1.c b/testsuite/reloc1.c
new file mode 100644 (file)
index 0000000..e679bed
--- /dev/null
@@ -0,0 +1,16 @@
+#include "reloc1.h"
+#include <stdlib.h>
+
+static struct A local = { 77, &local, &bar + 4 };
+
+int main()
+{
+  if (foo.a != 1 || foo.b != &foo || foo.c != &bar || bar != 26)
+    abort ();
+  if (f1 () != 11 || f2 () != 12)
+    abort ();
+  local.c -= 4;
+  if (local.a != 77 || local.b != &local || local.c != &bar)
+    abort ();
+  exit (0);
+}
diff --git a/testsuite/reloc1.h b/testsuite/reloc1.h
new file mode 100644 (file)
index 0000000..093dd3a
--- /dev/null
@@ -0,0 +1,12 @@
+struct A
+  {
+    char a;
+    struct A *b;
+    int *c;
+  };
+
+extern struct A foo;
+extern int bar;
+extern int f1 (void);
+extern int f2 (void);
+extern struct A *f3 (void);
diff --git a/testsuite/reloc1.sh b/testsuite/reloc1.sh
new file mode 100755 (executable)
index 0000000..124ab96
--- /dev/null
@@ -0,0 +1,18 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+rm -f reloc1 reloc1lib*.so reloc1.log
+rm -f prelink.cache
+$CC -shared -O2 -fpic -o reloc1lib1.so $srcdir/reloc1lib1.c
+$CC -shared -O2 -fpic -o reloc1lib2.so $srcdir/reloc1lib2.c reloc1lib1.so
+BINS="reloc1"
+LIBS="reloc1lib1.so reloc1lib2.so"
+$CCLINK -o reloc1 $srcdir/reloc1.c -Wl,--rpath-link,. reloc1lib2.so
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./reloc1 > reloc1.log
+$PRELINK ${PRELINK_OPTS--vm} ./reloc1 >> reloc1.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` reloc1.log && exit 2
+LD_LIBRARY_PATH=. ./reloc1 || exit 3
+readelf -a ./reloc1 >> reloc1.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./reloc1
+comparelibs >> reloc1.log 2>&1 || exit 5
diff --git a/testsuite/reloc10.c b/testsuite/reloc10.c
new file mode 100644 (file)
index 0000000..5720d33
--- /dev/null
@@ -0,0 +1,19 @@
+#include <stdlib.h>
+
+extern int bar, baz, *barp, *bazp, dummy;
+extern int f1 (void), f2 (void), f3 (void), f4 (void);
+/* Try to use COPY reloc for bar and get away without COPY
+   reloc for baz.  Similarly for barp and bazp.  */
+int *bazp2 = &baz;
+int **bazp3 = &bazp;
+
+int main (void)
+{
+  if (f1 () != 11 || f2 () != 12 || bar != 36 || *bazp2 != 38)
+    abort ();
+  if (f3 () != 14 || f4 () != 16 || *barp != 36 || **bazp3 != 38)
+    abort ();
+  if (dummy != 24)
+    abort ();
+  exit (0);
+}
diff --git a/testsuite/reloc10.sh b/testsuite/reloc10.sh
new file mode 100755 (executable)
index 0000000..94a4e69
--- /dev/null
@@ -0,0 +1,21 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+rm -f reloc10 reloc10lib*.so reloc10.log
+rm -f prelink.cache
+$CC -shared -O2 -fpic -o reloc10lib1.so $srcdir/reloc10lib1.c
+$CC -shared -O2 -nostdlib -fpic -o reloc10lib2.so $srcdir/reloc10lib2.c reloc10lib1.so
+$CC -shared -O2 -nostdlib -fpic -o reloc10lib3.so $srcdir/reloc10lib3.c reloc10lib1.so
+$CC -shared -O2 -nostdlib -fpic -o reloc10lib4.so $srcdir/reloc10lib4.c reloc10lib1.so
+$CC -shared -O2 -fpic -o reloc10lib5.so $srcdir/reloc10lib5.c reloc10lib2.so reloc10lib3.so reloc10lib4.so
+BINS="reloc10"
+LIBS="reloc10lib1.so reloc10lib2.so reloc10lib3.so reloc10lib4.so reloc10lib5.so"
+$CCLINK -o reloc10 $srcdir/reloc10.c -Wl,--rpath-link,. reloc10lib5.so
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./reloc10 > reloc10.log
+$PRELINK ${PRELINK_OPTS--vm} ./reloc10 >> reloc10.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` reloc10.log && exit 2
+LD_LIBRARY_PATH=. ./reloc10 || exit 3
+readelf -a ./reloc10 >> reloc10.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./reloc10
+comparelibs >> reloc10.log 2>&1 || exit 5
diff --git a/testsuite/reloc10lib1.c b/testsuite/reloc10lib1.c
new file mode 100644 (file)
index 0000000..2ee06d2
--- /dev/null
@@ -0,0 +1,12 @@
+int bar = 26;
+int baz = 28;
+
+int f1 (void)
+{
+  return 1;
+}
+
+int f2 (void)
+{
+  return 2;
+}
diff --git a/testsuite/reloc10lib2.c b/testsuite/reloc10lib2.c
new file mode 100644 (file)
index 0000000..fc327fc
--- /dev/null
@@ -0,0 +1,11 @@
+extern int bar, baz, f1 (void), f2 (void);
+
+int f3 (void)
+{
+  return f1 () + 3;
+}
+
+int f4 (void)
+{
+  return f2 () + 4;
+}
diff --git a/testsuite/reloc10lib3.c b/testsuite/reloc10lib3.c
new file mode 100644 (file)
index 0000000..2ec80ab
--- /dev/null
@@ -0,0 +1,3 @@
+extern int bar, baz, f1 (void), f2 (void);
+
+int *barp = &bar, *bazp = &baz;
diff --git a/testsuite/reloc10lib4.c b/testsuite/reloc10lib4.c
new file mode 100644 (file)
index 0000000..4376249
--- /dev/null
@@ -0,0 +1 @@
+int dummy = 24;
diff --git a/testsuite/reloc10lib5.c b/testsuite/reloc10lib5.c
new file mode 100644 (file)
index 0000000..19fd925
--- /dev/null
@@ -0,0 +1,12 @@
+int bar = 36;
+int baz = 38;
+
+int f1 (void)
+{
+  return 11;
+}
+
+int f2 (void)
+{
+  return 12;
+}
diff --git a/testsuite/reloc11.c b/testsuite/reloc11.c
new file mode 100644 (file)
index 0000000..923aff4
--- /dev/null
@@ -0,0 +1,16 @@
+#include <stdlib.h>
+
+extern int dummy;
+extern int var, var2, varp1 (), var2m1 (), bar ();
+int *pvar = &var, *pvar2 = &var2;
+
+int main (void)
+{
+  if (dummy != 24)
+    abort ();
+  if (*pvar != 32 || *pvar2 != 16)
+    abort ();
+  if (varp1 () != 33 || var2m1 () != 6 || bar () != 40)
+    abort ();
+  exit (0);
+}
diff --git a/testsuite/reloc11.sh b/testsuite/reloc11.sh
new file mode 100755 (executable)
index 0000000..5d3f4f1
--- /dev/null
@@ -0,0 +1,19 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+rm -f reloc11 reloc11lib*.so reloc11.log
+rm -f prelink.cache
+$CC -shared -O2 -nostdlib -fpic -o reloc11lib1.so $srcdir/reloc10lib4.c
+$CC -shared -O2 -nostdlib -fpic -o reloc11lib2.so $srcdir/reloc11lib2.c
+$CC -shared -O2 -nostdlib -fpic -o reloc11lib3.so $srcdir/reloc11lib3.c reloc11lib2.so
+BINS="reloc11"
+LIBS="reloc11lib1.so reloc11lib2.so reloc11lib3.so"
+$CCLINK -o reloc11 $srcdir/reloc11.c -Wl,--rpath-link,. reloc11lib1.so reloc11lib3.so
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./reloc11 > reloc11.log
+$PRELINK ${PRELINK_OPTS--vm} ./reloc11 >> reloc11.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` reloc11.log && exit 2
+LD_LIBRARY_PATH=. ./reloc11 || exit 3
+readelf -a ./reloc11 >> reloc11.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./reloc11
+comparelibs >> reloc11.log 2>&1 || exit 5
diff --git a/testsuite/reloc11lib2.c b/testsuite/reloc11lib2.c
new file mode 100644 (file)
index 0000000..6a2191c
--- /dev/null
@@ -0,0 +1,16 @@
+int var = 24, var2 = 16;
+
+int varp1 (void)
+{
+  return var + 1;
+}
+
+int var2m1 (void)
+{
+  return var2 - 1;
+}
+
+int bar (void)
+{
+  return varp1 () + var2m1 () + 1;
+}
diff --git a/testsuite/reloc11lib3.c b/testsuite/reloc11lib3.c
new file mode 100644 (file)
index 0000000..0cea7f3
--- /dev/null
@@ -0,0 +1,7 @@
+int var = 32;
+extern int var2;
+
+int var2m1 (void)
+{
+  return var2 - 10;
+}
diff --git a/testsuite/reloc1lib1.c b/testsuite/reloc1lib1.c
new file mode 100644 (file)
index 0000000..8aa0628
--- /dev/null
@@ -0,0 +1,16 @@
+#include "reloc1.h"
+
+int bar = 26;
+int baz = 28;
+
+struct A foo = { 1, &foo, &bar };
+
+int f1 (void)
+{
+  return 1;
+}
+
+int f2 (void)
+{
+  return f1 () + 1;
+}
diff --git a/testsuite/reloc1lib2.c b/testsuite/reloc1lib2.c
new file mode 100644 (file)
index 0000000..a338c1d
--- /dev/null
@@ -0,0 +1,6 @@
+#include "reloc1.h"
+
+int f1 (void)
+{
+  return 11;
+}
diff --git a/testsuite/reloc2.c b/testsuite/reloc2.c
new file mode 100644 (file)
index 0000000..6c7fed5
--- /dev/null
@@ -0,0 +1,13 @@
+#include <stdlib.h>
+
+extern int f2 (int add);
+extern void * f3 (void);
+
+int main()
+{
+  if (f2 (1) != 27 || f2 (0) != 1)
+    abort ();
+  if (f3 () != (void *) f3)
+    abort ();
+  exit (0);
+}
diff --git a/testsuite/reloc2.sh b/testsuite/reloc2.sh
new file mode 100755 (executable)
index 0000000..42bb63f
--- /dev/null
@@ -0,0 +1,31 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+SHFLAGS=
+case "`uname -m`" in
+  ia64|ppc*|x86_64|mips*|arm*) SHFLAGS=-fpic;; # Does not support non-pic shared libs
+  s390*) if file reloc1lib1.so | grep -q 64-bit; then SHFLAGS=-fpic; fi;;
+esac
+# Disable this test under SELinux if textrel
+if test -z "$SHFLAGS" -a -x /usr/sbin/getenforce; then
+  case "`/usr/sbin/getenforce 2>/dev/null`" in
+    Permissive|Disabled) ;;
+    *) exit 77 ;;
+  esac
+fi
+rm -f reloc2 reloc2lib*.so reloc2.log
+$CC -shared $SHFLAGS -O2 -o reloc2lib1.so $srcdir/reloc2lib1.c
+$CC -shared $SHFLAGS -O2 -o reloc2lib2.so $srcdir/reloc2lib2.c \
+  reloc2lib1.so 2>/dev/null
+BINS="reloc2"
+LIBS="reloc2lib1.so reloc2lib2.so"
+$CCLINK -o reloc2 $srcdir/reloc2.c -Wl,--rpath-link,. reloc2lib2.so
+strip -R .comment $BINS $LIBS
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./reloc2 > reloc2.log
+$PRELINK ${PRELINK_OPTS--vm} ./reloc2 >> reloc2.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` reloc2.log && exit 2
+LD_LIBRARY_PATH=. ./reloc2 || exit 3
+readelf -a ./reloc2 >> reloc2.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./reloc2
+comparelibs >> reloc2.log 2>&1 || exit 5
diff --git a/testsuite/reloc2lib1.c b/testsuite/reloc2lib1.c
new file mode 100644 (file)
index 0000000..3551704
--- /dev/null
@@ -0,0 +1,4 @@
+int f1 (int dummy)
+{
+  return 1;
+}
diff --git a/testsuite/reloc2lib2.c b/testsuite/reloc2lib2.c
new file mode 100644 (file)
index 0000000..094daad
--- /dev/null
@@ -0,0 +1,15 @@
+extern int f1 (int dummy);
+
+int f2 (int add)
+{
+  if (add)
+    return f1 (0) + 26;
+  return f1 (0);
+}
+
+/* Make sure conflict in f3 is not against read-only segment.  */
+asm (".section trampoline, \"awx\"; .previous");
+void * __attribute__((section ("trampoline"))) f3 (void)
+{
+  return (void *) f3;
+}
diff --git a/testsuite/reloc3.c b/testsuite/reloc3.c
new file mode 100644 (file)
index 0000000..2f455d7
--- /dev/null
@@ -0,0 +1,29 @@
+#include "reloc1.h"
+#include <stdlib.h>
+#include <stdio.h>
+
+int i;
+int j __attribute__((aligned (32)));
+int k[2048];
+int l = 26;
+
+void f5 (FILE *f)
+{
+  fprintf (stdout, "OK");
+}
+
+int main()
+{
+  struct A *x;
+  foo.c -= 2;
+  if (foo.a != 1 || foo.b != &foo || foo.c[0] != 28 || foo.c[1] != 29
+      || foo.c[2] != 30)
+    abort ();
+  if (f1 () != 11 || f2 () != 12)
+    abort ();
+  x = f3 ();
+  if (x->a != 2 || x->b != x || x->c != foo.c + 1)
+    abort ();
+  f5 (stdout);
+  exit (0);
+}
diff --git a/testsuite/reloc3.sh b/testsuite/reloc3.sh
new file mode 100755 (executable)
index 0000000..66e1bca
--- /dev/null
@@ -0,0 +1,19 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+rm -f reloc3 reloc3lib*.so reloc3.log
+rm -f prelink.cache
+$CC -shared -O2 -fpic -o reloc3lib1.so $srcdir/reloc3lib1.c
+$CC -shared -O2 -fpic -o reloc3lib2.so $srcdir/reloc1lib2.c reloc3lib1.so
+BINS="reloc3"
+LIBS="reloc3lib1.so reloc3lib2.so"
+$CCLINK -o reloc3 $srcdir/reloc3.c -Wl,--rpath-link,. reloc3lib2.so
+strip -g $BINS $LIBS
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./reloc3 > reloc3.log
+$PRELINK ${PRELINK_OPTS--vm} ./reloc3 >> reloc3.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` reloc3.log && exit 2
+LD_LIBRARY_PATH=. ./reloc3 >> reloc3.log || exit 3
+readelf -a ./reloc3 >> reloc3.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./reloc3
+comparelibs >> reloc3.log 2>&1 || exit 5
diff --git a/testsuite/reloc3lib1.c b/testsuite/reloc3lib1.c
new file mode 100644 (file)
index 0000000..fd649c6
--- /dev/null
@@ -0,0 +1,21 @@
+#include "reloc1.h"
+
+int baz[3] = { 28, 29, 30 };
+
+struct A foo = { 1, &foo, &baz[2] };
+static struct A xfoo = { 2, &xfoo, &baz[1] };
+
+int f1 (void)
+{
+  return 1;
+}
+
+int f2 (void)
+{
+  return f1 () + 1;
+}
+
+struct A *f3 (void)
+{
+  return &xfoo;
+}
diff --git a/testsuite/reloc4.c b/testsuite/reloc4.c
new file mode 100644 (file)
index 0000000..cb3b17a
--- /dev/null
@@ -0,0 +1,14 @@
+#include <stdio.h>
+
+int main (void)
+{
+  int i;
+
+  printf ("#include <stdlib.h>\nextern int");
+  for (i = 0; i < 255; ++i)
+    printf (" bar%02x (int),", i);
+  printf (" barff (int);\nint main (void)\n{\n  int x = 0;\n");
+  for (i = 0; i < 256; ++i)
+    printf ("  x = bar%02x (x);\n", i);
+  printf ("  if (x != 0x7fff8000) abort ();\n  exit (0);\n}\n");
+}
diff --git a/testsuite/reloc4.sh b/testsuite/reloc4.sh
new file mode 100755 (executable)
index 0000000..6fd733d
--- /dev/null
@@ -0,0 +1,34 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+# This test takes a lot of time, so skip it normally
+[ -z "$CHECK_ME_HARDER" ] && exit 77
+rm -f reloc4 reloc4lib*.so reloc4.log
+rm -f prelink.cache
+$CC -O2 -o reloc4lib1.tmp $srcdir/reloc4lib1.c
+$CC -O2 -o reloc4lib2.tmp $srcdir/reloc4lib2.c
+$CC -O2 -o reloc4lib3.tmp $srcdir/reloc4lib3.c
+$CC -O2 -o reloc4.tmp $srcdir/reloc4.c
+./reloc4lib1.tmp > reloc4lib1.tmp.c
+./reloc4lib2.tmp > reloc4lib2.tmp.c
+./reloc4lib3.tmp > reloc4lib3.tmp.c
+./reloc4.tmp > reloc4.tmp.c
+case "`$RUN uname -m`" in
+  mips*) extra=-mxgot ;;
+  *) extra= ;;
+esac
+$CC -shared -fpic $extra -o reloc4lib1.so reloc4lib1.tmp.c
+$CC -shared -fpic $extra -o reloc4lib2.so reloc4lib2.tmp.c reloc4lib1.so
+$CC -shared -fpic $extra -o reloc4lib3.so reloc4lib3.tmp.c reloc4lib2.so
+BINS="reloc4"
+LIBS="reloc4lib1.so reloc4lib2.so reloc4lib3.so"
+$CCLINK $extra -o reloc4 reloc4.tmp.c -Wl,--rpath-link,. reloc4lib3.so
+savelibs
+rm -f reloc4*.tmp reloc4*.tmp.c
+echo $PRELINK ${PRELINK_OPTS--vm} ./reloc4 > reloc4.log
+$PRELINK ${PRELINK_OPTS--vm} ./reloc4 >> reloc4.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` reloc4.log && exit 2
+LD_LIBRARY_PATH=. ./reloc4 || exit 3
+readelf -a ./reloc4 >> reloc4.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./reloc4
+comparelibs >> reloc4.log 2>&1 || exit 5
diff --git a/testsuite/reloc4lib1.c b/testsuite/reloc4lib1.c
new file mode 100644 (file)
index 0000000..f1297d8
--- /dev/null
@@ -0,0 +1,9 @@
+#include <stdio.h>
+
+int main (void)
+{
+  int i;
+
+  for (i = 0; i < 65536; ++i)
+    printf ("int foo%04x (void) { return %d; }\n", i, (i & 31) == 0 ? 0 : i);
+}
diff --git a/testsuite/reloc4lib2.c b/testsuite/reloc4lib2.c
new file mode 100644 (file)
index 0000000..07aa721
--- /dev/null
@@ -0,0 +1,17 @@
+#include <stdio.h>
+
+int main (void)
+{
+  int i, j;
+
+  for (i = 0; i < 256; ++i)
+    {
+      printf ("extern int ");
+      for (j = 0; j < 255; ++j)
+       printf ("foo%02x%02x (void), ", i, j);
+      printf ("foo%02xff (void);\nint bar%02x (int x) { return x", i, i);
+      for (j = 0; j < 256; ++j)
+       printf (" + foo%02x%02x ()", i, j);
+      printf ("; }\n");
+    }
+}
diff --git a/testsuite/reloc4lib3.c b/testsuite/reloc4lib3.c
new file mode 100644 (file)
index 0000000..1f30817
--- /dev/null
@@ -0,0 +1,9 @@
+#include <stdio.h>
+
+int main (void)
+{
+  int i;
+
+  for (i = 0; i < 65536; i += 32)
+    printf ("int foo%04x (void) { return %d; }\n", i, i);
+}
diff --git a/testsuite/reloc5.c b/testsuite/reloc5.c
new file mode 100644 (file)
index 0000000..4bc8cff
--- /dev/null
@@ -0,0 +1,21 @@
+#include <stdio.h>
+
+int main (void)
+{
+  int i;
+
+  printf ("#include <stdlib.h>\nextern char testzero[16384];\nextern int");
+  for (i = 0; i < 255; ++i)
+    printf (" bar%02x (int),", i);
+  printf (" barff (int);\nint main (void)\n{\n  int x = 0;\n");
+  for (i = 0; i < 256; ++i)
+    printf ("  x = bar%02x (x);\n", i);
+  printf ("  if (x != 0x7fff8000) abort ();\n");
+  printf ("  for (x = 0; x < 16384; ++x)\n");
+  printf ("    if (testzero[x]) abort ();\n");
+  printf ("  exit (0);\n}\n\n");
+  printf ("asm (\".section nonalloced,\\\"aw\\\",@nobits\\n\\t\"\n");
+  printf ("     \".globl testzero\\n\\t\"\n");
+  printf ("     \"testzero: .skip 16384\\n\\t\"\n");
+  printf ("     \".previous\");\n");
+}
diff --git a/testsuite/reloc5.sh b/testsuite/reloc5.sh
new file mode 100755 (executable)
index 0000000..16d2b7a
--- /dev/null
@@ -0,0 +1,20 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+# This test takes a lot of time, so skip it normally
+[ -z "$CHECK_ME_HARDER" ] && exit 77
+rm -f reloc5 reloc5.log
+rm -f prelink.cache
+$CC -O2 -o reloc5.tmp $srcdir/reloc5.c
+./reloc5.tmp > reloc5.tmp.c
+BINS="reloc5"
+$CCLINK -o reloc5 reloc5.tmp.c -Wl,--rpath-link,. reloc4lib3.so
+savelibs
+rm -f reloc5*.tmp reloc5*.tmp.c
+echo $PRELINK ${PRELINK_OPTS--vm} ./reloc5 > reloc5.log
+$PRELINK ${PRELINK_OPTS--vm} ./reloc5 >> reloc5.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` reloc5.log && exit 2
+LD_LIBRARY_PATH=. ./reloc5 || exit 3
+readelf -a ./reloc5 >> reloc5.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./reloc5
+comparelibs >> reloc5.log 2>&1 || exit 5
diff --git a/testsuite/reloc6.sh b/testsuite/reloc6.sh
new file mode 100755 (executable)
index 0000000..0ddd8d8
--- /dev/null
@@ -0,0 +1,24 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+rm -f reloc6 reloc6lib*.so reloc6.log
+rm -f prelink.cache
+$CC -shared -O2 -fpic -o reloc6lib1.so $srcdir/reloc3lib1.c
+$CC -shared -O2 -fpic -o reloc6lib2.so $srcdir/reloc1lib2.c reloc6lib1.so
+$CCLINK -o reloc6 $srcdir/reloc3.c -Wl,--rpath-link,. reloc6lib2.so
+$CCLINK -o reloc6.nop $srcdir/reloc3.c -Wl,--rpath-link,. reloc6lib2.so
+echo $PRELINK ${PRELINK_OPTS--vm} ./reloc6 > reloc6.log
+$PRELINK ${PRELINK_OPTS--vm} ./reloc6 >> reloc6.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` reloc6.log && exit 2
+LD_LIBRARY_PATH=. ./reloc6 >> reloc6.log || exit 3
+readelf -a ./reloc6 >> reloc6.log 2>&1 || exit 4
+LD_LIBRARY_PATH=. ./reloc6.nop >> reloc6.log || exit 5
+LD_LIBRARY_PATH=. LD_BIND_NOW=1 ./reloc6.nop >> reloc6.log || exit 6
+mv -f reloc6lib2.so reloc6lib2.so.p
+$CC -shared -O2 -fpic -o reloc6lib2.so $srcdir/reloc1lib2.c reloc6lib1.so
+LD_LIBRARY_PATH=. ./reloc6 >> reloc6.log || exit 7
+LD_LIBRARY_PATH=. ./reloc6.nop >> reloc6.log || exit 8
+LD_LIBRARY_PATH=. LD_BIND_NOW=1 ./reloc6.nop >> reloc6.log || exit 9
+mv -f reloc6lib2.so reloc6lib2.so.nop
+mv -f reloc6lib2.so.p reloc6lib2.so
+# So that it is not prelinked again
+chmod -x ./reloc6 ./reloc6.nop
diff --git a/testsuite/reloc7.c b/testsuite/reloc7.c
new file mode 100644 (file)
index 0000000..c1f6dc8
--- /dev/null
@@ -0,0 +1,38 @@
+#include "reloc1.h"
+#include <stdlib.h>
+#include <stdio.h>
+
+int i;
+int j __attribute__((aligned (32)));
+int k[2048];
+int l = 26;
+int m[3] = { 28, 29, 30 };
+extern int baz[3];
+
+struct A n __attribute__((section("nsec"))) = { 1, &n, &m[2] };
+static struct A o __attribute__((section("osec"))) = { 2, &o, &baz[1] };
+
+void f5 (FILE *f)
+{
+  fprintf (stdout, "OK");
+}
+
+int main()
+{
+  struct A *x;
+  foo.c -= 2;
+  if (foo.a != 1 || foo.b != &foo || foo.c[0] != 28 || foo.c[1] != 29
+      || foo.c[2] != 30)
+    abort ();
+  if (f1 () != 11 || f2 () != 12)
+    abort ();
+  x = f3 ();
+  if (x->a != 2 || x->b != x || x->c != foo.c + 1)
+    abort ();
+  if (n.a != 1 || n.b != &n || n.c != m + 2)
+    abort ();
+  if (o.a != 2 || o.b != &o || o.c != baz + 1)
+    abort ();
+  f5 (stdout);
+  exit (0);
+}
diff --git a/testsuite/reloc7.sh b/testsuite/reloc7.sh
new file mode 100755 (executable)
index 0000000..640ca78
--- /dev/null
@@ -0,0 +1,18 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+rm -f reloc7 reloc7lib*.so reloc7.log
+rm -f prelink.cache
+$CC -shared -O2 -Wl,-z,nocombreloc -fpic -o reloc7lib1.so $srcdir/reloc3lib1.c
+$CC -shared -O2 -Wl,-z,nocombreloc -fpic -o reloc7lib2.so $srcdir/reloc1lib2.c reloc7lib1.so
+BINS="reloc7"
+LIBS="reloc7lib1.so reloc7lib2.so"
+$CCLINK -o reloc7 -Wl,-z,nocombreloc $srcdir/reloc7.c -Wl,--rpath-link,. reloc7lib2.so
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./reloc7 > reloc7.log
+$PRELINK ${PRELINK_OPTS--vm} ./reloc7 >> reloc7.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` reloc7.log && exit 2
+LD_LIBRARY_PATH=. ./reloc7 >> reloc7.log || exit 3
+readelf -a ./reloc7 >> reloc7.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./reloc7
+comparelibs >> reloc7.log 2>&1 || exit 5
diff --git a/testsuite/reloc8.sh b/testsuite/reloc8.sh
new file mode 100755 (executable)
index 0000000..08864bd
--- /dev/null
@@ -0,0 +1,29 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+# Disable this test under SELinux
+if test -x /usr/sbin/getenforce; then
+  case "`/usr/sbin/getenforce 2>/dev/null`" in
+    Permissive|Disabled) ;;
+    *) exit 77 ;;
+  esac
+fi
+rm -f reloc8 reloc8lib*.so reloc8.log
+rm -f prelink.cache
+NOCOPYRELOC=-Wl,-z,nocopyreloc
+case "`uname -m`" in
+  x86_64|s390*) if file reloc1lib1.so | grep -q 64-bit; then NOCOPYRELOC=; fi;;
+esac
+$CC -shared -O2 -Wl,-z,nocombreloc -fpic -o reloc8lib1.so $srcdir/reloc3lib1.c
+$CC -shared -O2 -Wl,-z,nocombreloc -fpic -o reloc8lib2.so $srcdir/reloc1lib2.c reloc8lib1.so
+BINS="reloc8"
+LIBS="reloc8lib1.so reloc8lib2.so"
+$CCLINK -o reloc8 $NOCOPYRELOC $srcdir/reloc7.c -Wl,--rpath-link,. reloc8lib2.so
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./reloc8 > reloc8.log
+$PRELINK ${PRELINK_OPTS--vm} ./reloc8 >> reloc8.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` reloc8.log && exit 2
+LD_LIBRARY_PATH=. ./reloc8 >> reloc8.log || exit 3
+readelf -a ./reloc8 >> reloc8.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./reloc8
+comparelibs >> reloc8.log 2>&1 || exit 5
diff --git a/testsuite/reloc9.sh b/testsuite/reloc9.sh
new file mode 100755 (executable)
index 0000000..55dd0d7
--- /dev/null
@@ -0,0 +1,29 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+# Disable this test under SELinux
+if test -x /usr/sbin/getenforce; then
+  case "`/usr/sbin/getenforce 2>/dev/null`" in
+    Permissive|Disabled) ;;
+    *) exit 77 ;;
+  esac
+fi
+rm -f reloc9 reloc9lib*.so reloc9.log
+rm -f prelink.cache
+NOCOPYRELOC=-Wl,-z,nocopyreloc
+case "`uname -m`" in
+  x86_64|s390*) if file reloc1lib1.so | grep -q 64-bit; then NOCOPYRELOC=; fi;;
+esac
+$CC -shared -O2 -Wl,-z,nocombreloc -fpic -o reloc9lib1.so $srcdir/reloc3lib1.c
+$CC -shared -O2 -Wl,-z,nocombreloc -fpic -o reloc9lib2.so $srcdir/reloc1lib2.c reloc9lib1.so
+BINS="reloc9"
+LIBS="reloc9lib1.so reloc9lib2.so"
+$CCLINK -o reloc9 -Wl,-z,nocombreloc $NOCOPYRELOC $srcdir/reloc7.c -Wl,--rpath-link,. reloc9lib2.so
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./reloc9 > reloc9.log
+$PRELINK ${PRELINK_OPTS--vm} ./reloc9 >> reloc9.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` reloc9.log && exit 2
+LD_LIBRARY_PATH=. ./reloc9 >> reloc9.log || exit 3
+readelf -a ./reloc9 >> reloc9.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./reloc9
+comparelibs >> reloc9.log 2>&1 || exit 5
diff --git a/testsuite/shuffle1.sh b/testsuite/shuffle1.sh
new file mode 100755 (executable)
index 0000000..7798d9e
--- /dev/null
@@ -0,0 +1,22 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+rm -f shuffle1 shuffle1lib*.so shuffle1.log shuffle1.lds
+rm -f prelink.cache
+$CC -shared -O2 -fpic -o shuffle1lib1.so $srcdir/reloc1lib1.c
+$CC -shared -O2 -fpic -o shuffle1lib2.so $srcdir/reloc1lib2.c shuffle1lib1.so
+BINS="shuffle1"
+LIBS="shuffle1lib1.so shuffle1lib2.so"
+$CCLINK -o shuffle1 $srcdir/reloc1.c -Wl,--rpath-link,. shuffle1lib2.so \
+  -Wl,--verbose 2>&1 | sed -e '/^=========/,/^=========/!d;/^=========/d' \
+  -e 's/0x08048000/0x08000000/;s/SIZEOF_HEADERS.*$/& . += 56;/' > shuffle1.lds
+$CCLINK -o shuffle1 $srcdir/reloc1.c -Wl,--rpath-link,. shuffle1lib2.so \
+  -Wl,-T,shuffle1.lds
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./shuffle1 > shuffle1.log
+$PRELINK ${PRELINK_OPTS--vm} ./shuffle1 >> shuffle1.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` shuffle1.log && exit 2
+LD_LIBRARY_PATH=. ./shuffle1 || exit 3
+readelf -a ./shuffle1 >> shuffle1.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./shuffle1
+comparelibs >> shuffle1.log 2>&1 || exit 5
diff --git a/testsuite/shuffle2.c b/testsuite/shuffle2.c
new file mode 100644 (file)
index 0000000..4d761d4
--- /dev/null
@@ -0,0 +1,22 @@
+#include "reloc1.h"
+#include <stdlib.h>
+
+extern char testzero[16384];
+
+int main()
+{
+  int i;
+  if (foo.a != 1 || foo.b != &foo || foo.c != &bar || bar != 26)
+    abort ();
+  if (f1 () != 11 || f2 () != 12)
+    abort ();
+  for (i = 0; i < 16384; ++i)
+    if (testzero[i])
+      abort ();
+  exit (0);
+}
+
+asm (".section nonalloced,\"aw\",@nobits\n\t"
+     ".globl testzero\n\t"
+     "testzero: .skip 16384\n\t"
+     ".previous");
diff --git a/testsuite/shuffle2.sh b/testsuite/shuffle2.sh
new file mode 100755 (executable)
index 0000000..fcfbfb1
--- /dev/null
@@ -0,0 +1,25 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+# Kernels before 2.4.10 are known not to work
+case "`uname -r`" in
+  [01].*|2.[0-3].*|2.4.[0-9]|2.4.[0-9][^0-9]*) exit 77;;
+esac
+rm -f shuffle2 shuffle2lib*.so shuffle2.log shuffle2.lds
+$CC -shared -O2 -fpic -o shuffle2lib1.so $srcdir/reloc1lib1.c
+$CC -shared -O2 -fpic -o shuffle2lib2.so $srcdir/reloc1lib2.c shuffle2lib1.so
+BINS="shuffle2"
+LIBS="shuffle2lib1.so shuffle2lib2.so"
+$CCLINK -o shuffle2 $srcdir/shuffle2.c -Wl,--rpath-link,. shuffle2lib2.so \
+  -Wl,--verbose 2>&1 | sed -e '/^=========/,/^=========/!d;/^=========/d' \
+  -e 's/0x08048000/0x08000000/;s/SIZEOF_HEADERS.*$/& . += 56;/' > shuffle2.lds
+$CCLINK -o shuffle2 $srcdir/shuffle2.c -Wl,--rpath-link,. shuffle2lib2.so \
+  -Wl,-T,shuffle2.lds
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./shuffle2 > shuffle2.log
+$PRELINK ${PRELINK_OPTS--vm} ./shuffle2 >> shuffle2.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` shuffle2.log && exit 2
+LD_LIBRARY_PATH=. ./shuffle2 || exit 3
+readelf -a ./shuffle2 >> shuffle2.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./shuffle2
+comparelibs >> shuffle2.log 2>&1 || exit 5
diff --git a/testsuite/shuffle3.sh b/testsuite/shuffle3.sh
new file mode 100755 (executable)
index 0000000..d731102
--- /dev/null
@@ -0,0 +1,26 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+# Kernels before 2.4.10 are known not to work
+case "`uname -r`" in
+  [01].*|2.[0-3].*|2.4.[0-9]|2.4.[0-9][^0-9]*) exit 77;;
+esac
+rm -f shuffle3 shuffle3lib*.so shuffle3.log shuffle3.lds
+rm -f prelink.cache
+$CC -shared -O2 -fpic -o shuffle3lib1.so $srcdir/reloc1lib1.c
+$CC -shared -O2 -fpic -o shuffle3lib2.so $srcdir/reloc1lib2.c shuffle3lib1.so
+BINS="shuffle3"
+LIBS="shuffle3lib1.so shuffle3lib2.so"
+$CCLINK -o shuffle3 $srcdir/shuffle2.c -Wl,--rpath-link,. shuffle3lib2.so \
+  -Wl,--verbose 2>&1 | sed -e '/^=========/,/^=========/!d;/^=========/d' \
+  -e 's/0x08048000/0x08000000/' > shuffle3.lds
+$CCLINK -o shuffle3 $srcdir/shuffle2.c -Wl,--rpath-link,. shuffle3lib2.so \
+  -Wl,-T,shuffle3.lds
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./shuffle3 > shuffle3.log
+$PRELINK ${PRELINK_OPTS--vm} ./shuffle3 >> shuffle3.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` shuffle3.log && exit 2
+LD_LIBRARY_PATH=. ./shuffle3 || exit 3
+readelf -a ./shuffle3 >> shuffle3.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./shuffle3
+comparelibs >> shuffle3.log 2>&1 || exit 5
diff --git a/testsuite/shuffle4.sh b/testsuite/shuffle4.sh
new file mode 100755 (executable)
index 0000000..127e224
--- /dev/null
@@ -0,0 +1,18 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+# Kernels before 2.4.10 are known not to work
+case "`uname -r`" in
+  [01].*|2.[0-3].*|2.4.[0-9]|2.4.[0-9][^0-9]*) exit 77;;
+esac
+rm -f shuffle4 shuffle4.log
+BINS="shuffle4"
+$CCLINK -o shuffle4 $srcdir/shuffle2.c -Wl,--rpath-link,. shuffle3lib2.so
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./shuffle4 > shuffle4.log
+$PRELINK ${PRELINK_OPTS--vm} ./shuffle4 >> shuffle4.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` shuffle4.log && exit 2
+LD_LIBRARY_PATH=. ./shuffle4 || exit 3
+readelf -a ./shuffle4 >> shuffle4.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./shuffle4
+comparelibs >> shuffle4.log 2>&1 || exit 5
diff --git a/testsuite/shuffle5.sh b/testsuite/shuffle5.sh
new file mode 100755 (executable)
index 0000000..ce09d46
--- /dev/null
@@ -0,0 +1,22 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+rm -f shuffle5 shuffle5lib*.so shuffle5.log shuffle5.lds
+rm -f prelink.cache
+$CC -shared -O2 -fpic -o shuffle5lib1.so $srcdir/reloc1lib1.c
+$CC -shared -O2 -fpic -o shuffle5lib2.so $srcdir/reloc1lib2.c shuffle5lib1.so
+BINS="shuffle5"
+LIBS="shuffle5lib1.so shuffle5lib2.so"
+$CCLINK -o shuffle5 $srcdir/reloc1.c -Wl,--rpath-link,. shuffle5lib2.so \
+  -Wl,--verbose 2>&1 | sed -e '/^=========/,/^=========/!d;/^=========/d' \
+  -e 's/0x08048000/0x08000000/;s/SIZEOF_HEADERS.*$/& . += 180;/' > shuffle5.lds
+$CCLINK -o shuffle5 $srcdir/reloc1.c -Wl,--rpath-link,. shuffle5lib2.so \
+  -Wl,-T,shuffle5.lds
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./shuffle5 > shuffle5.log
+$PRELINK ${PRELINK_OPTS--vm} ./shuffle5 >> shuffle5.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` shuffle5.log && exit 2
+LD_LIBRARY_PATH=. ./shuffle5 || exit 3
+readelf -a ./shuffle5 >> shuffle5.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./shuffle5
+comparelibs >> shuffle5.log 2>&1 || exit 5
diff --git a/testsuite/shuffle6.sh b/testsuite/shuffle6.sh
new file mode 100755 (executable)
index 0000000..3eec2ff
--- /dev/null
@@ -0,0 +1,33 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+rm -f shuffle6 shuffle6lib*.so shuffle6.log shuffle6.lds
+rm -f prelink.cache
+$CC -shared -O2 -fpic -o shuffle6lib1.so $srcdir/reloc1lib1.c
+$CC -shared -O2 -fpic -o shuffle6lib2.so $srcdir/reloc1lib2.c shuffle6lib1.so
+BINS="shuffle6"
+LIBS="shuffle6lib1.so shuffle6lib2.so"
+$CCLINK -o shuffle6 $srcdir/reloc1.c -Wl,--rpath-link,. shuffle6lib2.so \
+  -Wl,--verbose 2>&1 | sed -e '/^=========/,/^=========/!d;/^=========/d' \
+  -e 's/0x08048000/0x08000000/;s/SIZEOF_HEADERS.*$/& . += 56;/' > shuffle6.lds
+$CCLINK -o shuffle6 $srcdir/reloc1.c -Wl,--rpath-link,. shuffle6lib2.so \
+  -Wl,-T,shuffle6.lds
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./shuffle6 > shuffle6.log
+$PRELINK ${PRELINK_OPTS--vm} ./shuffle6 >> shuffle6.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` shuffle6.log && exit 2
+LD_LIBRARY_PATH=. ./shuffle6 || exit 3
+readelf -a ./shuffle6 >> shuffle6.log 2>&1 || exit 4
+comparelibs >> shuffle6.log 2>&1 || exit 5
+for l in shuffle6lib{1,2}.so{,.orig}; do mv -f $l $l.first; done
+cp -p shuffle6 shuffle6.first
+$CC -shared -O2 -fpic -o shuffle6lib1.so $srcdir/shuffle6lib1.c
+$CC -shared -O2 -fpic -o shuffle6lib2.so $srcdir/shuffle6lib2.c shuffle6lib1.so
+for l in shuffle6lib{1,2}.so; do cp -p $l $l.orig; done
+echo $PRELINK ${PRELINK_OPTS--vm} ./shuffle6 >> shuffle6.log
+$PRELINK ${PRELINK_OPTS--vm} ./shuffle6 >> shuffle6.log 2>&1 || exit 6
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` shuffle6.log && exit 7
+LD_LIBRARY_PATH=. ./shuffle6 || exit 8
+readelf -a ./shuffle6 >> shuffle6.log 2>&1 || exit 9
+# So that it is not prelinked again
+chmod -x ./shuffle6
+comparelibs >> shuffle6.log 2>&1 || exit 10
diff --git a/testsuite/shuffle6lib1.c b/testsuite/shuffle6lib1.c
new file mode 100644 (file)
index 0000000..8053293
--- /dev/null
@@ -0,0 +1,20 @@
+#include "reloc1.h"
+
+int bar = 26;
+int baz = 28;
+#define M(i) int b##i, *pb##i = &b##i;
+M(0) M(1) M(2) M(3) M(4) M(5) M(6) M(7) M(8) M(9)
+M(10) M(11) M(12) M(13) M(14) M(15) M(16) M(17) M(18) M(19)
+#undef M
+
+struct A foo = { 1, &foo, &bar };
+
+int f1 (void)
+{
+  return 1;
+}
+
+int f2 (void)
+{
+  return f1 () + 1;
+}
diff --git a/testsuite/shuffle6lib2.c b/testsuite/shuffle6lib2.c
new file mode 100644 (file)
index 0000000..ed18f6b
--- /dev/null
@@ -0,0 +1,16 @@
+#include "reloc1.h"
+#include <stdlib.h>
+
+#define M(i) int b##i; extern *pb##i;
+M(0) M(1) M(2) M(3) M(4) M(5) M(6) M(7) M(8) M(9)
+M(10) M(11) M(12) M(13) M(14) M(15) M(16) M(17) M(18) M(19)
+#undef M
+
+int f1 (void)
+{
+#define M(i) if (pb##i != &b##i) abort ();
+M(0) M(1) M(2) M(3) M(4) M(5) M(6) M(7) M(8) M(9)
+M(10) M(11) M(12) M(13) M(14) M(15) M(16) M(17) M(18) M(19)
+#undef M
+  return 11;
+}
diff --git a/testsuite/shuffle7.sh b/testsuite/shuffle7.sh
new file mode 100755 (executable)
index 0000000..23c3c60
--- /dev/null
@@ -0,0 +1,44 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+rm -f shuffle7 shuffle7lib*.so shuffle7.log shuffle7.lds
+rm -f prelink.cache
+$CC -shared -O2 -fpic -o shuffle7lib1.so $srcdir/reloc1lib1.c
+$CC -shared -O2 -fpic -o shuffle7lib2.so $srcdir/reloc1lib2.c shuffle7lib1.so
+BINS="shuffle7"
+LIBS="shuffle7lib1.so shuffle7lib2.so"
+$CCLINK -o shuffle7 $srcdir/reloc1.c -Wl,--rpath-link,. shuffle7lib2.so \
+  -Wl,--verbose 2>&1 | sed -e '/^=========/,/^=========/!d;/^=========/d' \
+  -e '/\.hash/a\
+  . = . + 0x300;' > shuffle7.lds
+$CCLINK -o shuffle7 $srcdir/reloc1.c -Wl,--rpath-link,. shuffle7lib2.so \
+  -Wl,-T,shuffle7.lds
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./shuffle7 > shuffle7.log
+$PRELINK ${PRELINK_OPTS--vm} ./shuffle7 >> shuffle7.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` shuffle7.log && exit 2
+LD_LIBRARY_PATH=. ./shuffle7 || exit 3
+readelf -a ./shuffle7 >> shuffle7.log 2>&1 || exit 4
+comparelibs >> shuffle7.log 2>&1 || exit 5
+for l in shuffle7lib{1,2}.so{,.orig}; do mv -f $l $l.first; done
+cp -p shuffle7 shuffle7.first
+$CC -shared -O2 -fpic -o shuffle7lib1.so $srcdir/shuffle6lib1.c
+$CC -shared -O2 -fpic -o shuffle7lib2.so $srcdir/shuffle6lib2.c shuffle7lib1.so
+for l in shuffle7lib{1,2}.so; do cp -p $l $l.orig; done
+echo $PRELINK ${PRELINK_OPTS--vm} ./shuffle7 >> shuffle7.log
+$PRELINK ${PRELINK_OPTS--vm} ./shuffle7 >> shuffle7.log 2>&1 || exit 6
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` shuffle7.log && exit 7
+LD_LIBRARY_PATH=. ./shuffle7 || exit 8
+readelf -a ./shuffle7 >> shuffle7.log 2>&1 || exit 9
+comparelibs >> shuffle7.log 2>&1 || exit 10
+for l in shuffle7lib{1,2}.so{,.orig}; do mv -f $l $l.second; done
+cp -p shuffle7 shuffle7.second
+for l in shuffle7lib{1,2}.so{,.orig}; do cp -p $l.first $l; done
+echo $PRELINK ${PRELINK_OPTS--vm} ./shuffle7 >> shuffle7.log
+$PRELINK ${PRELINK_OPTS--vm} ./shuffle7 >> shuffle7.log 2>&1 || exit 11
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` shuffle7.log && exit 12
+LD_LIBRARY_PATH=. ./shuffle7 || exit 13
+readelf -a ./shuffle7 >> shuffle7.log 2>&1 || exit 14
+comparelibs >> shuffle7.log 2>&1 || exit 15
+cmp -s shuffle7{,.first} || exit 16
+# So that it is not prelinked again
+chmod -x ./shuffle7
diff --git a/testsuite/shuffle8.c b/testsuite/shuffle8.c
new file mode 100644 (file)
index 0000000..4e80184
--- /dev/null
@@ -0,0 +1,20 @@
+#include "reloc1.h"
+#include <stdlib.h>
+
+static struct A local = { 77, &local, &bar + 4 };
+int vbss[16384] __attribute__((aligned (4096)));
+int vdata __attribute__((aligned (4096))) = 5;
+
+asm (".text; .balign 4096; vtext:; .previous");
+
+int main()
+{
+  if (foo.a != 1 || foo.b != &foo || foo.c != &bar || bar != 26)
+    abort ();
+  if (f1 () != 11 || f2 () != 12)
+    abort ();
+  local.c -= 4;
+  if (local.a != 77 || local.b != &local || local.c != &bar)
+    abort ();
+  exit (vbss[31] + vdata - 5);
+}
diff --git a/testsuite/shuffle8.sh b/testsuite/shuffle8.sh
new file mode 100755 (executable)
index 0000000..d0768a4
--- /dev/null
@@ -0,0 +1,19 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+rm -f shuffle8 shuffle8lib*.so shuffle8.log shuffle8.lds
+rm -f prelink.cache
+$CC -shared -O2 -fpic -o shuffle8lib1.so $srcdir/reloc1lib1.c
+$CC -shared -O2 -fpic -o shuffle8lib2.so $srcdir/reloc1lib2.c shuffle8lib1.so
+BINS="shuffle8"
+LIBS="shuffle8lib1.so shuffle8lib2.so"
+$CCLINK -o shuffle8 $srcdir/shuffle8.c -Wl,--rpath-link,. shuffle8lib2.so
+strip -R .comment shuffle8
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./shuffle8 > shuffle8.log
+$PRELINK ${PRELINK_OPTS--vm} ./shuffle8 >> shuffle8.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` shuffle8.log && exit 2
+LD_LIBRARY_PATH=. ./shuffle8 || exit 3
+readelf -a ./shuffle8 >> shuffle8.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./shuffle8
+comparelibs >> shuffle8.log 2>&1 || exit 5
diff --git a/testsuite/shuffle9.c b/testsuite/shuffle9.c
new file mode 100644 (file)
index 0000000..21ac534
--- /dev/null
@@ -0,0 +1,58 @@
+#include "reloc1.h"
+#include <stdlib.h>
+
+extern char testzero[16384];
+
+int main()
+{
+  int i;
+  if (foo.a != 1 || foo.b != &foo || foo.c != &bar || bar != 26)
+    abort ();
+  if (f1 () != 11 || f2 () != 12)
+    abort ();
+  for (i = 0; i < 16384; ++i)
+    if (testzero[i])
+      abort ();
+  exit (0);
+}
+
+asm (".section nonalloced,\"aw\",@nobits\n\t"
+     ".globl testzero\n\t"
+     "testzero: .skip 16384\n\t"
+     ".previous\n");
+
+asm (".section \".note.PRELINK.1\", \"a\"\n\t"
+     ".balign 4\n\t"
+     ".long 1f - 0f\n\t"
+     ".long 3f - 2f\n\t"
+     ".long 1\n"
+ "0:\t.asciz \"PRELINK\"\n"
+ "1:\t.balign 4\n"
+ "2:\t.long 12\n\t"
+     ".long 17\n"
+ "3:\t.balign 4\n\t"
+     ".previous\n");
+
+asm (".section \".note.PRELINK.2\", \"a\"\n\t"
+     ".balign 4\n\t"
+     ".long 1f - 0f\n\t"
+     ".long 3f - 2f\n\t"
+     ".long 2\n"
+ "0:\t.asciz \"PRELINK\"\n"
+ "1:\t.balign 4\n"
+ "2:\t.long 12\n\t"
+     ".long 17\n"
+ "3:\t.balign 4\n\t"
+     ".previous\n");
+
+asm (".section \".note.PRELINK.3\", \"a\"\n\t"
+     ".balign 4\n\t"
+     ".long 1f - 0f\n\t"
+     ".long 3f - 2f\n\t"
+     ".long 3\n"
+ "0:\t.asciz \"PRELINK\"\n"
+ "1:\t.balign 4\n"
+ "2:\t.long 12\n\t"
+     ".long 17\n"
+ "3:\t.balign 4\n\t"
+     ".previous\n");
diff --git a/testsuite/shuffle9.sh b/testsuite/shuffle9.sh
new file mode 100755 (executable)
index 0000000..5768890
--- /dev/null
@@ -0,0 +1,18 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+# Kernels before 2.4.10 are known not to work
+case "`uname -r`" in
+  [01].*|2.[0-3].*|2.4.[0-9]|2.4.[0-9][^0-9]*) exit 77;;
+esac
+rm -f shuffle9 shuffle9.log
+BINS="shuffle9"
+$CCLINK -o shuffle9 $srcdir/shuffle9.c -Wl,--rpath-link,. shuffle3lib2.so
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./shuffle9 > shuffle9.log
+$PRELINK ${PRELINK_OPTS--vm} ./shuffle9 >> shuffle9.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` shuffle9.log && exit 2
+LD_LIBRARY_PATH=. ./shuffle9 || exit 3
+readelf -a ./shuffle9 >> shuffle9.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./shuffle9
+comparelibs >> shuffle9.log 2>&1 || exit 5
diff --git a/testsuite/tls1.c b/testsuite/tls1.c
new file mode 100644 (file)
index 0000000..08bd26f
--- /dev/null
@@ -0,0 +1,36 @@
+#include "tls1.h"
+#include <stdlib.h>
+
+static __thread int dummy = 12;
+__thread struct A local = { 1, 2, 3 };
+
+#define CHECK(N, S)                                    \
+  p = f##N##a ();                                      \
+  if (p->a != S || p->b != S + 1 || p->c != S + 2)     \
+    abort ()
+
+int main()
+{
+  struct A *p;
+  if (local.a != 1 || local.b != 2 || local.c != 3)
+    abort ();
+  if (a1.a != 4 || a1.b != 5 || a1.c != 6)
+    abort ();
+  if (a2.a != 22 || a2.b != 23 || a2.c != 24)
+    abort ();
+  if (a3.a != 10 || a3.b != 11 || a3.c != 12)
+    abort ();
+  if (a4.a != 25 || a4.b != 26 || a4.c != 27)
+    abort ();
+  check1 ();
+  check2 ();
+  if (f1a () != &a1 || f2a () != &a2 || f3a () != &a3 || f4a () != &a4)
+    abort ();
+  CHECK (5, 16);
+  CHECK (6, 19);
+  if (f7a () != &a2 || f8a () != &a4)
+    abort ();
+  CHECK (9, 28);
+  CHECK (10, 31);
+  exit (0);
+}
diff --git a/testsuite/tls1.h b/testsuite/tls1.h
new file mode 100644 (file)
index 0000000..d627340
--- /dev/null
@@ -0,0 +1,30 @@
+struct A
+  {
+    char a;
+    int b;
+    long long c;
+  };
+
+extern __thread struct A a1, a2, a3, a4;
+extern struct A *f1a (void);
+extern struct A *f2a (void);
+extern struct A *f3a (void);
+extern struct A *f4a (void);
+extern struct A *f5a (void);
+extern struct A *f6a (void);
+extern struct A *f7a (void);
+extern struct A *f8a (void);
+extern struct A *f9a (void);
+extern struct A *f10a (void);
+extern int f1b (void);
+extern int f2b (void);
+extern int f3b (void);
+extern int f4b (void);
+extern int f5b (void);
+extern int f6b (void);
+extern int f7b (void);
+extern int f8b (void);
+extern int f9b (void);
+extern int f10b (void);
+extern void check1 (void);
+extern void check2 (void);
diff --git a/testsuite/tls1.sh b/testsuite/tls1.sh
new file mode 100755 (executable)
index 0000000..0fb4986
--- /dev/null
@@ -0,0 +1,23 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+# First check if __thread is supported by ld.so/gcc/ld/as:
+rm -f tlstest
+echo '__thread int a; int main (void) { return a; }' \
+  | $CC -xc - -o tlstest > /dev/null 2>&1 || exit 77
+( ./tlstest || { rm -f tlstest; exit 77; } ) 2>/dev/null || exit 77
+rm -f tls1 tls1lib*.so tls1.log
+rm -f prelink.cache
+$CC -shared -O2 -fpic -o tls1lib1.so $srcdir/tls1lib1.c
+$CC -shared -O2 -fpic -o tls1lib2.so $srcdir/tls1lib2.c tls1lib1.so
+BINS="tls1"
+LIBS="tls1lib1.so tls1lib2.so"
+$CCLINK -o tls1 $srcdir/tls1.c -Wl,--rpath-link,. tls1lib2.so
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./tls1 > tls1.log
+$PRELINK ${PRELINK_OPTS--vm} ./tls1 >> tls1.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` tls1.log && exit 2
+LD_LIBRARY_PATH=. ./tls1 || exit 3
+readelf -a ./tls1 >> tls1.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./tls1
+comparelibs >> tls1.log 2>&1 || exit 5
diff --git a/testsuite/tls1lib1.c b/testsuite/tls1lib1.c
new file mode 100644 (file)
index 0000000..eb0734b
--- /dev/null
@@ -0,0 +1,89 @@
+#include "tls1.h"
+#include <stdlib.h>
+
+static __thread int dummy = 12;
+__thread struct A a1 = { 4, 5, 6 };
+__thread struct A a2 = { 7, 8, 9 };
+__thread struct A a3 __attribute__((tls_model("initial-exec")))
+  = { 10, 11, 12 };
+__thread struct A a4 __attribute__((tls_model("initial-exec")))
+  = { 13, 14, 15 };
+static __thread struct A local1 = { 16, 17, 18 };
+static __thread struct A local2 __attribute__((tls_model("initial-exec")))
+  = { 19, 20, 21 };
+
+void check1 (void)
+{
+  if (a1.a != 4 || a1.b != 5 || a1.c != 6)
+    abort ();
+  if (a2.a != 22 || a2.b != 23 || a2.c != 24)
+    abort ();
+  if (a3.a != 10 || a3.b != 11 || a3.c != 12)
+    abort ();
+  if (a4.a != 25 || a4.b != 26 || a4.c != 27)
+    abort ();
+  if (local1.a != 16 || local1.b != 17 || local1.c != 18)
+    abort ();
+  if (local2.a != 19 || local2.b != 20 || local2.c != 21)
+    abort ();
+}
+
+struct A *f1a (void)
+{
+  return &a1;
+}
+
+struct A *f2a (void)
+{
+  return &a2;
+}
+
+struct A *f3a (void)
+{
+  return &a3;
+}
+
+struct A *f4a (void)
+{
+  return &a4;
+}
+
+struct A *f5a (void)
+{
+  return &local1;
+}
+
+struct A *f6a (void)
+{
+  return &local2;
+}
+
+int f1b (void)
+{
+  return a1.a;
+}
+
+int f2b (void)
+{
+  return a2.b;
+}
+
+int f3b (void)
+{
+  return a3.c;
+}
+
+int f4b (void)
+{
+  return a4.a;
+}
+
+int f5b (void)
+{
+  return local1.b;
+}
+
+int f6b (void)
+{
+  return local2.c;
+}
diff --git a/testsuite/tls1lib2.c b/testsuite/tls1lib2.c
new file mode 100644 (file)
index 0000000..eee03a9
--- /dev/null
@@ -0,0 +1,62 @@
+#include "tls1.h"
+#include <stdlib.h>
+
+static __thread long long dummy = 12;
+__thread struct A a2 = { 22, 23, 24 };
+__thread struct A a4 __attribute__((tls_model("initial-exec")))
+  = { 25, 26, 27 };
+static __thread struct A local1 = { 28, 29, 30 };
+static __thread struct A local2 __attribute__((tls_model("initial-exec")))
+  = { 31, 32, 33 };
+
+void check2 (void)
+{
+  if (a2.a != 22 || a2.b != 23 || a2.c != 24)
+    abort ();
+  if (a4.a != 25 || a4.b != 26 || a4.c != 27)
+    abort ();
+  if (local1.a != 28 || local1.b != 29 || local1.c != 30)
+    abort ();
+  if (local2.a != 31 || local2.b != 32 || local2.c != 33)
+    abort ();
+}
+
+struct A *f7a (void)
+{
+  return &a2;
+}
+
+struct A *f8a (void)
+{
+  return &a4;
+}
+
+struct A *f9a (void)
+{
+  return &local1;
+}
+
+struct A *f10a (void)
+{
+  return &local2;
+}
+
+int f7b (void)
+{
+  return a2.b;
+}
+
+int f8b (void)
+{
+  return a4.a;
+}
+
+int f9b (void)
+{
+  return local1.b;
+}
+
+int f10b (void)
+{
+  return local2.c;
+}
diff --git a/testsuite/tls2.c b/testsuite/tls2.c
new file mode 100644 (file)
index 0000000..1246165
--- /dev/null
@@ -0,0 +1,25 @@
+#include "tls1.h"
+#include <stdlib.h>
+
+#define CHECK(N, S)                                    \
+  p = f##N##a ();                                      \
+  if (p->a != S || p->b != S + 1 || p->c != S + 2)     \
+    abort ()
+
+int main()
+{
+  struct A *p;
+  check1 ();
+  check2 ();
+  CHECK (1, 4);
+  CHECK (2, 22);
+  CHECK (3, 10);
+  CHECK (4, 25);
+  CHECK (5, 16);
+  CHECK (6, 19);
+  CHECK (7, 22);
+  CHECK (8, 25);
+  CHECK (9, 28);
+  CHECK (10, 31);
+  exit (0);
+}
diff --git a/testsuite/tls2.sh b/testsuite/tls2.sh
new file mode 100755 (executable)
index 0000000..bf9e1eb
--- /dev/null
@@ -0,0 +1,24 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+# First check if __thread is supported by ld.so/gcc/ld/as:
+rm -f tlstest
+echo '__thread int a; int main (void) { return a; }' \
+  | $CC -xc - -o tlstest > /dev/null 2>&1 || exit 77
+( ./tlstest || { rm -f tlstest; exit 77; } ) 2>/dev/null || exit 77
+rm -f tls2 tls2lib*.so tls2.log
+rm -f prelink.cache
+$CC -shared -O2 -fpic -o tls2lib1.so $srcdir/tls2lib1.c
+$CC -shared -O2 -fpic -o tls2lib2.so $srcdir/tls1lib2.c tls2lib1.so
+BINS="tls2"
+LIBS="tls2lib1.so tls2lib2.so"
+$CCLINK -o tls2 $srcdir/tls2.c -Wl,--rpath-link,. tls2lib2.so
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./tls2 > tls2.log
+$PRELINK ${PRELINK_OPTS--vm} ./tls2 >> tls2.log 2>&1 || exit 1
+grep -v 'has undefined non-weak symbols' tls2.log \
+  | grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` && exit 2
+LD_LIBRARY_PATH=. ./tls2 || exit 3
+readelf -a ./tls2 >> tls2.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./tls2
+comparelibs >> tls2.log 2>&1 || exit 5
diff --git a/testsuite/tls2lib1.c b/testsuite/tls2lib1.c
new file mode 100644 (file)
index 0000000..24b7555
--- /dev/null
@@ -0,0 +1,87 @@
+#include "tls1.h"
+#include <stdlib.h>
+
+static __thread int dummy = 12;
+__thread struct A a1 = { 4, 5, 6 };
+__thread struct A a3 __attribute__((tls_model("initial-exec")))
+  = { 10, 11, 12 };
+extern __thread struct A a4 __attribute__((tls_model("initial-exec")));
+static __thread struct A local1 = { 16, 17, 18 };
+static __thread struct A local2 __attribute__((tls_model("initial-exec")))
+  = { 19, 20, 21 };
+
+void check1 (void)
+{
+  if (a1.a != 4 || a1.b != 5 || a1.c != 6)
+    abort ();
+  if (a2.a != 22 || a2.b != 23 || a2.c != 24)
+    abort ();
+  if (a3.a != 10 || a3.b != 11 || a3.c != 12)
+    abort ();
+  if (a4.a != 25 || a4.b != 26 || a4.c != 27)
+    abort ();
+  if (local1.a != 16 || local1.b != 17 || local1.c != 18)
+    abort ();
+  if (local2.a != 19 || local2.b != 20 || local2.c != 21)
+    abort ();
+}
+
+struct A *f1a (void)
+{
+  return &a1;
+}
+
+struct A *f2a (void)
+{
+  return &a2;
+}
+
+struct A *f3a (void)
+{
+  return &a3;
+}
+
+struct A *f4a (void)
+{
+  return &a4;
+}
+
+struct A *f5a (void)
+{
+  return &local1;
+}
+
+struct A *f6a (void)
+{
+  return &local2;
+}
+
+int f1b (void)
+{
+  return a1.a;
+}
+
+int f2b (void)
+{
+  return a2.b;
+}
+
+int f3b (void)
+{
+  return a3.c;
+}
+
+int f4b (void)
+{
+  return a4.a;
+}
+
+int f5b (void)
+{
+  return local1.b;
+}
+
+int f6b (void)
+{
+  return local2.c;
+}
diff --git a/testsuite/tls3.sh b/testsuite/tls3.sh
new file mode 100755 (executable)
index 0000000..00dde00
--- /dev/null
@@ -0,0 +1,35 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+# First check if __thread is supported by ld.so/gcc/ld/as:
+rm -f tlstest
+echo '__thread int a; int main (void) { return a; }' \
+  | $CC -xc - -o tlstest > /dev/null 2>&1 || exit 77
+( ./tlstest || { rm -f tlstest; exit 77; } ) 2>/dev/null || exit 77
+SHFLAGS=
+case "`uname -m`" in
+  ia64|ppc*|x86_64|alpha*|s390*|mips*|arm*) SHFLAGS=-fpic;; # Does not support non-pic shared libs
+esac
+# Disable this test under SELinux if textrel
+if test -z "$SHFLAGS" -a -x /usr/sbin/getenforce; then
+  case "`/usr/sbin/getenforce 2>/dev/null`" in
+    Permissive|Disabled) ;;
+    *) exit 77 ;;
+  esac
+fi
+rm -f tls3 tls3lib*.so tls3.log
+rm -f prelink.cache
+$CC -shared -O2 -fpic -o tls3lib1.so $srcdir/tls1lib1.c
+$CC -shared -O2 $SHFLAGS -o tls3lib2.so $srcdir/tls3lib2.c \
+  tls3lib1.so 2>/dev/null
+BINS="tls3"
+LIBS="tls3lib1.so tls3lib2.so"
+$CCLINK -o tls3 $srcdir/tls1.c -Wl,--rpath-link,. tls3lib2.so
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./tls3 > tls3.log
+$PRELINK ${PRELINK_OPTS--vm} ./tls3 >> tls3.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` tls3.log && exit 2
+LD_LIBRARY_PATH=. ./tls3 || exit 3
+readelf -a ./tls3 >> tls3.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./tls3
+comparelibs >> tls3.log 2>&1 || exit 5
diff --git a/testsuite/tls3lib2.c b/testsuite/tls3lib2.c
new file mode 100644 (file)
index 0000000..ba485d3
--- /dev/null
@@ -0,0 +1,68 @@
+#include "tls1.h"
+#include <stdlib.h>
+
+asm (".section trampoline, \"awx\"; .previous");
+
+#if !defined __sparc__ || defined __pic__ || defined __PIC__
+#define ieattr __attribute__((tls_model("initial-exec")))
+#else
+#define ieattr
+#endif
+
+static __thread long long dummy = 12;
+__thread struct A a2 = { 22, 23, 24 };
+__thread struct A a4 ieattr = { 25, 26, 27 };
+static __thread struct A local1 = { 28, 29, 30 };
+static __thread struct A local2 ieattr = { 31, 32, 33 };
+
+void __attribute__((section ("trampoline"))) check2 (void)
+{
+  if (a2.a != 22 || a2.b != 23 || a2.c != 24)
+    abort ();
+  if (a4.a != 25 || a4.b != 26 || a4.c != 27)
+    abort ();
+  if (local1.a != 28 || local1.b != 29 || local1.c != 30)
+    abort ();
+  if (local2.a != 31 || local2.b != 32 || local2.c != 33)
+    abort ();
+}
+
+struct A * __attribute__((section ("trampoline"))) f7a (void)
+{
+  return &a2;
+}
+
+struct A * __attribute__((section ("trampoline"))) f8a (void)
+{
+  return &a4;
+}
+
+struct A * __attribute__((section ("trampoline"))) f9a (void)
+{
+  return &local1;
+}
+
+struct A * __attribute__((section ("trampoline"))) f10a (void)
+{
+  return &local2;
+}
+
+int __attribute__((section ("trampoline"))) f7b (void)
+{
+  return a2.b;
+}
+
+int __attribute__((section ("trampoline"))) f8b (void)
+{
+  return a4.a;
+}
+
+int __attribute__((section ("trampoline"))) f9b (void)
+{
+  return local1.b;
+}
+
+int __attribute__((section ("trampoline"))) f10b (void)
+{
+  return local2.c;
+}
diff --git a/testsuite/tls4.c b/testsuite/tls4.c
new file mode 100644 (file)
index 0000000..0882f07
--- /dev/null
@@ -0,0 +1,16 @@
+#include "tls1.h"
+#include <stdlib.h>
+
+#define CHECK(N, S)                                    \
+  p = &a##N;                                           \
+  if (p->a != S || p->b != S + 1 || p->c != S + 2)     \
+    abort ()
+
+int main()
+{
+  struct A *p;
+  check1 ();
+  CHECK (1, 4);
+  CHECK (2, 7);
+  exit (0);
+}
diff --git a/testsuite/tls4.sh b/testsuite/tls4.sh
new file mode 100755 (executable)
index 0000000..556a6d5
--- /dev/null
@@ -0,0 +1,24 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+# First check if __thread is supported by ld.so/gcc/ld/as:
+rm -f tlstest
+echo '__thread int a; int main (void) { return a; }' \
+  | $CC -xc - -o tlstest > /dev/null 2>&1 || exit 77
+( ./tlstest || { rm -f tlstest; exit 77; } ) 2>/dev/null || exit 77
+rm -f tls4 tls4lib*.so tls4.log
+rm -f prelink.cache
+$CC -shared -O2 -fpic -o tls4lib1.so $srcdir/tls4lib1.c
+$CC -shared -O2 -fpic -o tls4lib2.so $srcdir/tls4lib2.c \
+  tls4lib1.so 2>/dev/null
+BINS="tls4"
+LIBS="tls4lib1.so tls4lib2.so"
+$CCLINK -o tls4 $srcdir/tls4.c -Wl,--rpath-link,. tls4lib2.so
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./tls4 > tls4.log
+$PRELINK ${PRELINK_OPTS--vm} ./tls4 >> tls4.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` tls4.log && exit 2
+LD_LIBRARY_PATH=. ./tls4 || exit 3
+readelf -a ./tls4 >> tls4.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./tls4
+comparelibs >> tls4.log 2>&1 || exit 5
diff --git a/testsuite/tls4lib1.c b/testsuite/tls4lib1.c
new file mode 100644 (file)
index 0000000..a03af0b
--- /dev/null
@@ -0,0 +1,5 @@
+#include "tls1.h"
+#include <stdlib.h>
+
+__thread struct A a1 = { 4, 5, 6 };
+__thread struct A a2 = { 7, 8, 9 };
diff --git a/testsuite/tls4lib2.c b/testsuite/tls4lib2.c
new file mode 100644 (file)
index 0000000..309504b
--- /dev/null
@@ -0,0 +1,12 @@
+#include "tls1.h"
+#include <stdlib.h>
+
+extern __thread struct A a2 __attribute__((tls_model("initial-exec")));
+
+void check1 (void)
+{
+  if (a1.a != 4 || a1.b != 5 || a1.c != 6)
+    abort ();
+  if (a2.a != 7 || a2.b != 8 || a2.c != 9)
+    abort ();
+}
diff --git a/testsuite/tls5.sh b/testsuite/tls5.sh
new file mode 100755 (executable)
index 0000000..dbc0470
--- /dev/null
@@ -0,0 +1,30 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+# First check if __thread is supported by ld.so/gcc/ld/as:
+rm -f tlstest
+echo '__thread int a; int main (void) { return a; }' \
+  | $CC -xc - -o tlstest > /dev/null 2>&1 || exit 77
+( ./tlstest || { rm -f tlstest; exit 77; } ) 2>/dev/null || exit 77
+rm -f tls5 tls5lib*.so tls5.log
+rm -f prelink.cache
+echo 'int tls5;' | $CC -shared -O2 -fpic -xc - -o tls5lib3.so
+$CC -shared -O2 -fpic -o tls5lib1.so $srcdir/tls5lib1.c tls5lib3.so
+$CC -shared -O2 -fpic -o tls5lib2.so $srcdir/tls1lib2.c \
+  -Wl,--rpath-link,. tls5lib1.so
+BINS="tls5"
+LIBS="tls5lib1.so tls5lib2.so tls5lib3.so"
+$CCLINK -o tls5 $srcdir/tls1.c -Wl,--rpath-link,. tls5lib2.so
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./tls5 > tls5.log
+$PRELINK ${PRELINK_OPTS--vm} ./tls5 >> tls5.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` tls5.log && exit 2
+LD_LIBRARY_PATH=. ./tls5 || exit 3
+$PRELINK -u tls5lib3.so || exit 4
+echo $PRELINK ${PRELINK_OPTS--vm} ./tls5 >> tls5.log
+$PRELINK ${PRELINK_OPTS--vm} ./tls5 >> tls5.log 2>&1 || exit 5
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` tls5.log && exit 6
+LD_LIBRARY_PATH=. ./tls5 || exit 7
+readelf -a ./tls5 >> tls5.log 2>&1 || exit 8
+# So that it is not prelinked again
+chmod -x ./tls5
+comparelibs >> tls5.log 2>&1 || exit 9
diff --git a/testsuite/tls5lib1.c b/testsuite/tls5lib1.c
new file mode 100644 (file)
index 0000000..9677848
--- /dev/null
@@ -0,0 +1,96 @@
+#include "tls1.h"
+#include <stdlib.h>
+
+static __thread int dummy = 12;
+__thread struct A a1 = { 4, 5, 6 };
+__thread struct A a2 = { 7, 8, 9 };
+__thread struct A a3 __attribute__((tls_model("initial-exec")))
+  = { 10, 11, 12 };
+__thread struct A a4 __attribute__((tls_model("initial-exec")))
+  = { 13, 14, 15 };
+static __thread struct A local1 = { 16, 17, 18 };
+static __thread struct A local2 __attribute__((tls_model("initial-exec")))
+  = { 19, 20, 21 };
+struct Z { char a; struct Z *b; int *c; };
+int y[2];
+struct Z z[2] = { { 1, &z[1], &y[0] }, { 2, &z[0], &y[1] } };
+
+void check1 (void)
+{
+  if (a1.a != 4 || a1.b != 5 || a1.c != 6)
+    abort ();
+  if (a2.a != 22 || a2.b != 23 || a2.c != 24)
+    abort ();
+  if (a3.a != 10 || a3.b != 11 || a3.c != 12)
+    abort ();
+  if (a4.a != 25 || a4.b != 26 || a4.c != 27)
+    abort ();
+  if (local1.a != 16 || local1.b != 17 || local1.c != 18)
+    abort ();
+  if (local2.a != 19 || local2.b != 20 || local2.c != 21)
+    abort ();
+  if (z[0].a != 1 || z[0].b != &z[1] || z[0].c != &y[0])
+    abort ();
+  if (z[1].a != 2 || z[1].b != &z[0] || z[1].c != &y[1])
+    abort ();
+}
+
+struct A *f1a (void)
+{
+  return &a1;
+}
+
+struct A *f2a (void)
+{
+  return &a2;
+}
+
+struct A *f3a (void)
+{
+  return &a3;
+}
+
+struct A *f4a (void)
+{
+  return &a4;
+}
+
+struct A *f5a (void)
+{
+  return &local1;
+}
+
+struct A *f6a (void)
+{
+  return &local2;
+}
+
+int f1b (void)
+{
+  return a1.a;
+}
+
+int f2b (void)
+{
+  return a2.b;
+}
+
+int f3b (void)
+{
+  return a3.c;
+}
+
+int f4b (void)
+{
+  return a4.a;
+}
+
+int f5b (void)
+{
+  return local1.b;
+}
+
+int f6b (void)
+{
+  return local2.c;
+}
diff --git a/testsuite/tls6.sh b/testsuite/tls6.sh
new file mode 100755 (executable)
index 0000000..2d854d9
--- /dev/null
@@ -0,0 +1,32 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+# First check if __thread is supported by ld.so/gcc/ld/as:
+rm -f tlstest
+echo '__thread int a; int main (void) { return a; }' \
+  | $CC -xc - -o tlstest > /dev/null 2>&1 || exit 77
+( ./tlstest || { rm -f tlstest; exit 77; } ) 2>/dev/null || exit 77
+rm -f tls6 tls6lib*.so tls6.log
+rm -f prelink.cache
+echo 'int tls6;' | $CC -shared -O2 -fpic -xc - -o tls6lib3.so
+$CC -shared -O2 -fpic -o tls6lib1.so $srcdir/tls6lib1.c tls6lib3.so
+$CC -shared -O2 -fpic -o tls6lib2.so $srcdir/tls1lib2.c \
+  -Wl,--rpath-link,. tls6lib1.so
+BINS="tls6"
+LIBS="tls6lib1.so tls6lib2.so tls6lib3.so"
+$CCLINK -o tls6 $srcdir/tls2.c -Wl,--rpath-link,. tls6lib2.so
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./tls6 > tls6.log
+$PRELINK ${PRELINK_OPTS--vm} ./tls6 >> tls6.log 2>&1 || exit 1
+grep -v 'has undefined non-weak symbols' tls6.log \
+  | grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` && exit 2
+LD_LIBRARY_PATH=. ./tls6 || exit 3
+$PRELINK -u tls6lib3.so || exit 4
+echo $PRELINK ${PRELINK_OPTS--vm} ./tls6 >> tls6.log
+$PRELINK ${PRELINK_OPTS--vm} ./tls6 >> tls6.log 2>&1 || exit 5
+grep -v 'has undefined non-weak symbols' tls6.log \
+  | grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` && exit 6
+LD_LIBRARY_PATH=. ./tls6 || exit 7
+readelf -a ./tls6 >> tls6.log 2>&1 || exit 8
+# So that it is not prelinked again
+chmod -x ./tls6
+comparelibs >> tls6.log 2>&1 || exit 9
diff --git a/testsuite/tls6lib1.c b/testsuite/tls6lib1.c
new file mode 100644 (file)
index 0000000..5310c06
--- /dev/null
@@ -0,0 +1,94 @@
+#include "tls1.h"
+#include <stdlib.h>
+
+static __thread int dummy = 12;
+__thread struct A a1 = { 4, 5, 6 };
+__thread struct A a3 __attribute__((tls_model("initial-exec")))
+  = { 10, 11, 12 };
+extern __thread struct A a4 __attribute__((tls_model("initial-exec")));
+static __thread struct A local1 = { 16, 17, 18 };
+static __thread struct A local2 __attribute__((tls_model("initial-exec")))
+  = { 19, 20, 21 };
+struct Z { char a; struct Z *b; int *c; };
+int y[2];
+struct Z z[2] = { { 1, &z[1], &y[0] }, { 2, &z[0], &y[1] } };
+
+void check1 (void)
+{
+  if (a1.a != 4 || a1.b != 5 || a1.c != 6)
+    abort ();
+  if (a2.a != 22 || a2.b != 23 || a2.c != 24)
+    abort ();
+  if (a3.a != 10 || a3.b != 11 || a3.c != 12)
+    abort ();
+  if (a4.a != 25 || a4.b != 26 || a4.c != 27)
+    abort ();
+  if (local1.a != 16 || local1.b != 17 || local1.c != 18)
+    abort ();
+  if (local2.a != 19 || local2.b != 20 || local2.c != 21)
+    abort ();
+  if (z[0].a != 1 || z[0].b != &z[1] || z[0].c != &y[0])
+    abort ();
+  if (z[1].a != 2 || z[1].b != &z[0] || z[1].c != &y[1])
+    abort ();
+}
+
+struct A *f1a (void)
+{
+  return &a1;
+}
+
+struct A *f2a (void)
+{
+  return &a2;
+}
+
+struct A *f3a (void)
+{
+  return &a3;
+}
+
+struct A *f4a (void)
+{
+  return &a4;
+}
+
+struct A *f5a (void)
+{
+  return &local1;
+}
+
+struct A *f6a (void)
+{
+  return &local2;
+}
+
+int f1b (void)
+{
+  return a1.a;
+}
+
+int f2b (void)
+{
+  return a2.b;
+}
+
+int f3b (void)
+{
+  return a3.c;
+}
+
+int f4b (void)
+{
+  return a4.a;
+}
+
+int f5b (void)
+{
+  return local1.b;
+}
+
+int f6b (void)
+{
+  return local2.c;
+}
diff --git a/testsuite/tls7.c b/testsuite/tls7.c
new file mode 100644 (file)
index 0000000..4a3db24
--- /dev/null
@@ -0,0 +1,10 @@
+#include "tls1.h"
+#include <stdlib.h>
+
+static __thread int dummy;
+__thread struct A local;
+
+int main()
+{
+  exit (dummy + local.a + local.b + local.c);
+}
diff --git a/testsuite/tls7.sh b/testsuite/tls7.sh
new file mode 100755 (executable)
index 0000000..ab93719
--- /dev/null
@@ -0,0 +1,21 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+# First check if __thread is supported by ld.so/gcc/ld/as:
+rm -f tlstest
+echo '__thread int a; int main (void) { return a; }' \
+  | $CC -xc - -o tlstest > /dev/null 2>&1 || exit 77
+( ./tlstest || { rm -f tlstest; exit 77; } ) 2>/dev/null || exit 77
+rm -f tls7 tls7.log
+rm -f prelink.cache
+BINS="tls7"
+LIBS=""
+$CCLINK -o tls7 $srcdir/tls7.c
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./tls7 > tls7.log
+$PRELINK ${PRELINK_OPTS--vm} ./tls7 >> tls7.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` tls7.log && exit 2
+LD_LIBRARY_PATH=. ./tls7 || exit 3
+readelf -a ./tls7 >> tls7.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./tls7
+comparelibs >> tls7.log 2>&1 || exit 5
diff --git a/testsuite/undo1.sh b/testsuite/undo1.sh
new file mode 100755 (executable)
index 0000000..d8436a5
--- /dev/null
@@ -0,0 +1,22 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+rm -f undo1 undo1lib*.so undo1.log
+rm -f prelink.cache
+$CC -shared -O2 -fpic -o undo1lib1.so $srcdir/reloc1lib1.c
+$CC -shared -O2 -fpic -o undo1lib2.so $srcdir/reloc1lib2.c undo1lib1.so
+BINS="undo1"
+LIBS="undo1lib1.so undo1lib2.so"
+$CCLINK -o undo1 $srcdir/reloc1.c -Wl,--rpath-link,. undo1lib2.so
+savelibs
+echo $PRELINK ${PRELINK_OPTS--vm} ./undo1 > undo1.log
+$PRELINK ${PRELINK_OPTS--vm} ./undo1 >> undo1.log 2>&1 || exit 1
+grep -q ^`echo $PRELINK | sed 's/ .*$/: /'` undo1.log && exit 2
+LD_LIBRARY_PATH=. ./undo1 || exit 3
+readelf -a ./undo1 >> undo1.log 2>&1 || exit 4
+# So that it is not prelinked again
+chmod -x ./undo1
+echo $PRELINK -uo undo1.undo undo1 >> undo1.log
+$PRELINK -uo undo1.undo undo1 >> undo1.log 2>&1 || exit 5
+cmp -s undo1.undo undo1.orig >> undo1.log 2>&1 || exit 6
+rm -f undo1.undo
+comparelibs >> undo1.log 2>&1 || exit 7
diff --git a/testsuite/undosyslibs.sh b/testsuite/undosyslibs.sh
new file mode 100755 (executable)
index 0000000..1ce136d
--- /dev/null
@@ -0,0 +1,4 @@
+#!/bin/bash
+. `dirname $0`/functions.sh
+LIBS=`cat syslib.list`
+comparelibs >> undosyslibs.log 2>&1 || exit 1