2 # Output a system dependent set of variables, describing how to set the
3 # run time search path of shared libraries in an executable.
5 # Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
6 # 2005, 2006, 2007, 2009 Free Software Foundation, Inc.
7 # Taken from GNU libtool, 2001
8 # Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
10 # This file is free software; the Free Software Foundation gives
11 # unlimited permission to copy and/or distribute it, with or without
12 # modifications, as long as this notice is preserved.
14 # The first argument passed to this file is the canonical host specification,
15 # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
17 # CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
18 # The environment variables CC, GCC, LDFLAGS, LD, with_gnu_ld
19 # should be set by the caller.
21 # The set of defined variables is at the end of this script.
24 # - On IRIX 6.5 with CC="cc", the run time search patch must not be longer
25 # than 256 bytes, otherwise the compiler driver will dump core. The only
26 # known workaround is to choose shorter directory names for the build
27 # directory and/or the installation directory.
29 # All known linkers require a `.a' archive for static linking (except MSVC,
30 # which needs '.lib').
35 host_cpu=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
36 host_vendor=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
37 host_os=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
39 # Code taken from libtool.m4's _LT_CC_BASENAME.
41 for cc_temp in $CC""; do
43 compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
44 distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
49 cc_basename=`echo "$cc_temp" | sed -e 's%^.*/%%'`
51 # Code taken from libtool.m4's AC_LIBTOOL_PROG_COMPILER_PIC.
54 if test "$GCC" = yes; then
68 mingw* | cygwin* | pw32* | os2*)
70 hpux9* | hpux10* | hpux11*)
73 irix5* | irix6* | nonstopux*)
93 case `$CC -V 2>&1 | sed 5q` in
101 osf3* | osf4* | osf5*)
112 sysv4 | sysv4.2uw2* | sysv4.3*)
117 sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
128 # Code taken from libtool.m4's AC_LIBTOOL_PROG_LD_SHLIBS.
130 hardcode_libdir_flag_spec=
131 hardcode_libdir_separator=
136 cygwin* | mingw* | pw32*)
137 # FIXME: the MSVC++ port hasn't been tested in a loooong time
138 # When not using gcc, we currently assume that we are using
139 # Microsoft Visual C++.
140 if test "$GCC" != yes; then
145 # we just hope/assume this is gcc and not c89 (= MSVC++)
154 if test "$with_gnu_ld" = yes; then
155 # Set some defaults for GNU ld with shared library support. These
156 # are reset later if shared libraries are not supported. Putting them
157 # here allows them to be overridden if necessary.
158 # Unlike libtool, we use -rpath here, not --rpath, since the documented
159 # option of GNU ld is called -rpath, not --rpath.
160 hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
162 aix3* | aix4* | aix5*)
163 # On AIX/PPC, the GNU linker is very broken
164 if test "$host_cpu" != ia64; then
169 hardcode_libdir_flag_spec='-L$libdir'
171 # Samuel A. Falvo II <kc5tja@dolphin.openprojects.net> reports
172 # that the semantics of dynamic libraries on AmigaOS, at least up
173 # to version 4, is to share data among multiple programs linked
174 # with the same dynamic library. Since this doesn't match the
175 # behavior of shared libraries on other platforms, we cannot use
180 if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
186 cygwin* | mingw* | pw32*)
187 # hardcode_libdir_flag_spec is actually meaningless, as there is
188 # no search path for DLLs.
189 hardcode_libdir_flag_spec='-L$libdir'
190 if $LD --help 2>&1 | grep 'auto-import' > /dev/null; then
198 hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
200 gnu* | linux* | k*bsd*-gnu)
201 if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
210 if $LD -v 2>&1 | grep 'BFD 2\.8' > /dev/null; then
212 elif $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
218 sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
219 case `$LD -v 2>&1` in
220 *\ [01].* | *\ 2.[0-9].* | *\ 2.1[0-5].*)
224 if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
225 hardcode_libdir_flag_spec='`test -z "$SCOABSPATH" && echo ${wl}-rpath,$libdir`'
236 if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
243 if test "$ld_shlibs" = no; then
244 hardcode_libdir_flag_spec=
249 # Note: this linker hardcodes the directories in LIBPATH if there
250 # are no directories specified by -L.
252 if test "$GCC" = yes; then
253 # Neither direct hardcoding nor static linking is supported with a
255 hardcode_direct=unsupported
259 if test "$host_cpu" = ia64; then
260 # On IA64, the linker does run time linking by default, so we don't
261 # have to do anything special.
262 aix_use_runtimelinking=no
264 aix_use_runtimelinking=no
265 # Test if we are trying to use run time linking or normal
266 # AIX style linking. If -brtl is somewhere in LDFLAGS, we
267 # need to do runtime linking.
268 case $host_os in aix4.[23]|aix4.[23].*|aix5*)
269 for ld_flag in $LDFLAGS; do
270 if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
271 aix_use_runtimelinking=yes
279 hardcode_libdir_separator=':'
280 if test "$GCC" = yes; then
281 case $host_os in aix4.[012]|aix4.[012].*)
282 collect2name=`${CC} -print-prog-name=collect2`
283 if test -f "$collect2name" && \
284 strings "$collect2name" | grep resolve_lib_name >/dev/null
286 # We have reworked collect2
289 # We have old collect2
290 hardcode_direct=unsupported
292 hardcode_libdir_flag_spec='-L$libdir'
293 hardcode_libdir_separator=
298 # Begin _LT_AC_SYS_LIBPATH_AIX.
299 echo 'int main () { return 0; }' > conftest.c
300 ${CC} ${LDFLAGS} conftest.c -o conftest
301 aix_libpath=`dump -H conftest 2>/dev/null | sed -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0 *\(.*\)$/\1/; p; }
303 if test -z "$aix_libpath"; then
304 aix_libpath=`dump -HX64 conftest 2>/dev/null | sed -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0 *\(.*\)$/\1/; p; }
307 if test -z "$aix_libpath"; then
308 aix_libpath="/usr/lib:/lib"
310 rm -f conftest.c conftest
311 # End _LT_AC_SYS_LIBPATH_AIX.
312 if test "$aix_use_runtimelinking" = yes; then
313 hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
315 if test "$host_cpu" = ia64; then
316 hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
318 hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
323 hardcode_libdir_flag_spec='-L$libdir'
325 # see comment about different semantics on the GNU ld section
330 cygwin* | mingw* | pw32*)
331 # When not using gcc, we currently assume that we are using
332 # Microsoft Visual C++.
333 # hardcode_libdir_flag_spec is actually meaningless, as there is
334 # no search path for DLLs.
335 hardcode_libdir_flag_spec=' '
340 if test "$GCC" = yes ; then
353 hardcode_libdir_flag_spec='-L$libdir'
359 hardcode_libdir_flag_spec='-R$libdir'
366 freebsd* | dragonfly*)
367 hardcode_libdir_flag_spec='-R$libdir'
371 hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
372 hardcode_libdir_separator=:
374 # hardcode_minus_L: Not really in the search PATH,
375 # but as the default location of the library.
379 if test "$with_gnu_ld" = no; then
380 hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
381 hardcode_libdir_separator=:
383 # hardcode_minus_L: Not really in the search PATH,
384 # but as the default location of the library.
389 if test "$with_gnu_ld" = no; then
390 hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
391 hardcode_libdir_separator=:
398 # hardcode_minus_L: Not really in the search PATH,
399 # but as the default location of the library.
405 irix5* | irix6* | nonstopux*)
406 hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
407 hardcode_libdir_separator=:
410 hardcode_libdir_flag_spec='-R$libdir'
415 hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
416 hardcode_libdir_separator=:
419 if test -f /usr/libexec/ld.so; then
421 if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
422 hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
425 openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*)
426 hardcode_libdir_flag_spec='-R$libdir'
429 hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
438 hardcode_libdir_flag_spec='-L$libdir'
442 hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
443 hardcode_libdir_separator=:
446 if test "$GCC" = yes; then
447 hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
449 # Both cc and cxx compiler support -rpath directly
450 hardcode_libdir_flag_spec='-rpath $libdir'
452 hardcode_libdir_separator=:
455 hardcode_libdir_flag_spec='-R$libdir'
458 hardcode_libdir_flag_spec='-L$libdir'
465 hardcode_direct=yes # is this really true???
471 hardcode_direct=no #Motorola manual says yes, but my tests say they lie
478 if test -d /usr/nec; then
482 sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
484 sysv5* | sco3.2v5* | sco5v6*)
485 hardcode_libdir_flag_spec='`test -z "$SCOABSPATH" && echo ${wl}-R,$libdir`'
486 hardcode_libdir_separator=':'
489 hardcode_libdir_flag_spec='-L$libdir'
497 # Check dynamic linker characteristics
498 # Code taken from libtool.m4's AC_LIBTOOL_SYS_DYNAMIC_LINKER.
499 # Unlike libtool.m4, here we don't care about _all_ names of the library, but
500 # only about the one the linker finds when passed -lNAME. This is the last
501 # element of library_names_spec in libtool.m4, or possibly two of them if the
502 # linker has special search rules.
503 library_names_spec= # the last element of library_names_spec in libtool.m4
504 libname_spec='lib$name'
507 library_names_spec='$libname.a'
510 library_names_spec='$libname$shrext'
513 library_names_spec='$libname.a'
516 library_names_spec='$libname$shrext'
519 library_names_spec='$libname$shrext'
521 cygwin* | mingw* | pw32*)
523 library_names_spec='$libname.dll.a $libname.lib'
527 library_names_spec='$libname$shrext'
530 library_names_spec='$libname$shrext'
534 freebsd* | dragonfly*)
537 library_names_spec='$libname$shrext$versuffix' ;;
539 library_names_spec='$libname$shrext' ;;
543 library_names_spec='$libname$shrext'
545 hpux9* | hpux10* | hpux11*)
557 library_names_spec='$libname$shrext'
560 library_names_spec='$libname$shrext'
562 irix5* | irix6* | nonstopux*)
563 library_names_spec='$libname$shrext'
570 *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") libsuff= shlibsuff= ;;
571 *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") libsuff=32 shlibsuff=N32 ;;
572 *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") libsuff=64 shlibsuff=64 ;;
573 *) libsuff= shlibsuff= ;;
578 linux*oldld* | linux*aout* | linux*coff*)
581 library_names_spec='$libname$shrext'
584 library_names_spec='$libname$shrext'
587 library_names_spec='$libname$shrext'
590 library_names_spec='$libname$shrext'
593 library_names_spec='$libname$shrext'
596 library_names_spec='$libname$shrext$versuffix'
601 library_names_spec='$libname.a'
603 osf3* | osf4* | osf5*)
604 library_names_spec='$libname$shrext'
609 library_names_spec='$libname$shrext'
612 library_names_spec='$libname$shrext$versuffix'
615 library_names_spec='$libname$shrext'
618 library_names_spec='$libname$shrext'
620 sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
621 library_names_spec='$libname$shrext'
624 library_names_spec='$libname$shrext'
628 sed_quote_subst='s/\(["`$\\]\)/\\\1/g'
629 escaped_wl=`echo "X$wl" | sed -e 's/^X//' -e "$sed_quote_subst"`
630 shlibext=`echo "$shrext" | sed -e 's,^\.,,'`
631 escaped_libname_spec=`echo "X$libname_spec" | sed -e 's/^X//' -e "$sed_quote_subst"`
632 escaped_library_names_spec=`echo "X$library_names_spec" | sed -e 's/^X//' -e "$sed_quote_subst"`
633 escaped_hardcode_libdir_flag_spec=`echo "X$hardcode_libdir_flag_spec" | sed -e 's/^X//' -e "$sed_quote_subst"`
635 LC_ALL=C sed -e 's/^\([a-zA-Z0-9_]*\)=/acl_cv_\1=/' <<EOF
637 # How to pass a linker flag through the compiler.
640 # Static library suffix (normally "a").
643 # Shared library suffix (normally "so").
646 # Format of library name prefix.
647 libname_spec="$escaped_libname_spec"
649 # Library names that the linker finds when passed -lNAME.
650 library_names_spec="$escaped_library_names_spec"
652 # Flag to hardcode \$libdir into a binary during linking.
653 # This must work even if \$libdir does not exist.
654 hardcode_libdir_flag_spec="$escaped_hardcode_libdir_flag_spec"
656 # Whether we need a single -rpath flag with a separated argument.
657 hardcode_libdir_separator="$hardcode_libdir_separator"
659 # Set to yes if using DIR/libNAME.so during linking hardcodes DIR into the
661 hardcode_direct="$hardcode_direct"
663 # Set to yes if using the -LDIR flag during linking hardcodes DIR into the
665 hardcode_minus_L="$hardcode_minus_L"