3 * WARNING: Future backward-incompatibilities!
5 - The support for the "obscure" multilib feature has been deprecated,
6 and will be moved out of the automake core in the next major Automake
9 - The support for ".log -> .html" conversion and the check-html and
10 recheck-html targets will be removed in the next major Automake
13 - The `lzma' compression format for distribution archives has been
14 deprecated in favor of `xz' and `lzip', and will be removed in the
15 next major Automake release (1.12).
17 - The Automake support for automatic de-ANSI-fication will be removed in
18 the next major Automake release (1.12).
20 - The `--acdir' option of aclocal is deprecated, and will probably be
21 removed in the next major Automake release (1.12).
23 - The exact order in which the directories in the aclocal macro
24 search path are looked up is probably going to be changed in the
25 next Automake release (1.12).
27 - The obsolescent AM_WITH_REGEX macro has been deprecated (since the
28 GNU rx library has been decommissioned), and will be removed in the
29 next major Automake release (1.12).
33 - The `--acdir' option is deprecated. Now you should use the new options
34 `--automake-acdir' and `--system-acdir' instead.
36 - The `ACLOCAL_PATH' environment variable is now interpreted as a
37 colon-separated list of additional directories to search after the
38 automake internal acdir (by default ${prefix}/share/aclocal-APIVERSION)
39 and before the system acdir (by default ${prefix}/share/aclocal).
41 * Miscellaneous changes:
43 - Automatic dependency tracking now works also with the IBM XL C/C++
44 compilers, thanks to the new new depmode 'xlc'.
46 - Automake's own build system is more silent by default, making use of
47 the 'silent-rules' option.
49 - The master copy of the `gnupload' script is now maintained in gnulib,
52 - The `missing' script doesn't try to wrap calls to `tar' anymore.
54 - "make dist" doesn't wrap `tar' invocations with the `missing' script
55 anymore. Similarly, the obsolescent variable `$(AMTAR)' (which you
56 shouldn't be using BTW ;-) does not invoke the missing script anymore
57 to wrap tar, but simply invokes the `tar' program itself.
59 - "make dist" can now create lzip-compressed tarballs.
61 - In the Automake info documentation, the Top node and the nodes about
62 the invocation of the automake and aclocal programs have been renamed;
63 now, calling "info automake" will open the Top node, while calling
64 "info automake-invocation" and "info aclocal-invocation" will access
65 the nodes about the invocation of respectively automake and aclocal.
67 - Automake is now distributed as a gzip-compressed and an xz-compressed
68 tarball. Previously, bzip2 was used instead of xz.
70 - The last relics of Python 1.5 support have been removed from the
73 - The `lzma' compression scheme and associated automake option `dist-lzma'
74 is obsoleted by `xz' and `dist-xz' due to upstream changes.
76 - You may adjust the compression options used in dist-xz and dist-bzip2.
77 The default is now merely -e for xz, but still -9 for bzip; you may
78 specify a different level via the XZ_OPT and BZIP2 envvars respectively.
79 E.g., "make dist-xz XZ_OPT=-7" or "make dist-bzip2 BZIP2=-5"
81 - The `compile' script now converts some options for MSVC for a better
82 user experience. Similarly, the new `ar-lib' script wraps Microsoft lib.
84 - The py-compile script now accepts empty arguments passed to the options
85 `--destdir' and `--basedir', and complains about unrecognized options.
86 Moreover, a non-option argument or a special `--' argument terminates
89 - A developer that needs to pass specific flags to configure at "make
90 distcheck" time can now, and indeed is advised to, do so by defining
91 the developer-reserved makefile variable AM_DISTCHECK_CONFIGURE_FLAGS,
92 instead of the old DISTCHECK_CONFIGURE_FLAGS.
93 The DISTCHECK_CONFIGURE_FLAGS variable should now be reserved for the
94 user; still, the old Makefile.am files that used to define it will
95 still continue to work as before.
97 - New macro AM_PROG_AR that looks for an archiver and wraps it in the new
98 'ar-lib' auxiliary script if the selected archiver is Microsoft lib.
99 This new macro is required for LIBRARIES and LTLIBRARIES when automake
100 is run with -Wextra-portability (or -Wall) and -Werror.
102 - When using DejaGnu-based testsuites, the user can extend the `site.exp'
103 file generated by automake-provided rules by defining the special make
104 variable `$(EXTRA_DEJAGNU_SITE_CONFIG)'.
106 - The `install-info' rule can now be instructed not to create/update
107 the `${infodir}/dir' file, by exporting the new environment variable
108 `AM_UPDATE_INFO_DIR' to the value "no".
110 - For programs and libraries, automake now detects EXTRA_foo_DEPENDENCIES
111 and adds them to the normal list of dependencies, but without
112 overwriting the foo_DEPENDENCIES variable, which is normally computed
115 - The 'ar-lib' script now ignores the "s" (symbol index) and "S" (no
116 symbol index) modifiers as well as the "s" action, as the symbol index
117 is created unconditionally by Microsoft lib. Also, the "q" (quick)
118 action is now a synonym for "r" (replace). Also, the script has been
119 ignoring the "v" (verbose) modifier already since Automake 1.11.3.
121 - When the 'compile' script is used to wrap MSVC, it now accepts an
122 optional space between the -I, -L and -l options and their respective
123 arguments, for better POSIX compliance.
125 Bugs fixed in 1.11.0a:
127 * Bugs introduced by 1.11.2:
129 - Automake now correctly recognizes the prefix/primary combination
130 `pkglibexec_SCRIPTS' as valid.
132 * Bugs introduced by 1.11:
134 - The parallel-tests harness doesn't trip anymore on sed implementations
135 with stricter limits on the length of input lines (problem seen at
138 - The `parallel-tests' test driver works around a GNU make 3.80 bug with
139 trailing white space in the test list (`TESTS = foo $(EMPTY)'), and
140 does not report spurious successes when used with concurrent FreeBSD
141 make (e.g., "make check -j3").
143 - When the parallel-tests driver is in use, automake now explicitly
144 rejects invalid entries and conditional contents in TEST_EXTENSIONS,
145 instead of issuing confusing and apparently unrelated error messages
146 (e.g., "non-POSIX variable name", "bad characters in variable name",
147 or "redefinition of TEST_EXTENSIONS), or even, in some situations,
148 silently producing broken `Makefile.in' files.
150 - The `silent-rules' option now truly silences all compile rules, even
151 when dependency tracking is disabled. Also, when `silent-rules' is
152 not used, `make' output no longer contains spurious backslash-only
153 lines, thus once again matching what Automake did before 1.11.
155 - The `silent-rules' option now generates working makefiles even for
156 the uncommon `make' implementations that do not support the
157 nested-variables extension to POSIX 2008. For such `make'
158 implementations, whether a build is silent is determined at
159 configure time, and cannot be overridden at make time with
160 `make V=0' or `make V=1'.
162 - The AM_COND_IF macro also works if the shell expression for the conditional
163 is no longer valid for the condition.
165 * Long-standing bugs:
167 - It is now possible for a foo_SOURCES variable to hold Vala sources
168 together with C header files, as well as with sources and headers for
169 other supported languages (e.g., C++). Previously, only mixing C and
170 Vala sources was supported.
172 - Vala support now works better in VPATH setups.
174 - The "deleted header file problem" for *.am files is avoided by stub
175 rules. This allows `make' to trigger a rerun of `automake' also if
176 some previously needed `.am' file has been removed.
178 - "make distcheck" now correctly complains also when "make uninstall"
179 leaves one and only one file installed in $(prefix).
181 - A "make uninstall" issued before a "make install", or after a mere
182 "make install-data" or a mere "make install-exec" does not spuriously
185 - Automake now warns about more primary/directory invalid combinations,
186 such as "doc_LIBRARIES" or "pkglib_PROGRAMS".
188 - On Darwin 9, `pythondir' and `pyexecdir' pointed below `/Library/Python'
189 even if the `--prefix' argument pointed outside of a system directory.
190 AM_PATH_PYTHON has been fixed to ignore the value returned from python's
191 `get_python_lib' function if it points outside the configured prefix,
192 unless the `--prefix' argument was either `/usr' or below `/System'.
194 - The testsuite does not try to change the mode of `ltmain.sh' files from
195 a Libtool installation (symlinked to test directories) any more.
197 - AM_PROG_GCJ uses AC_CHECK_TOOLS to look for `gcj' now, so that prefixed
198 tools are preferred in a cross-compile setup.
200 - Several scripts and the parallel-tests testsuite driver now exit with
201 the right exit status upon receiving a signal.
203 - A per-Makefile.am setting of -Werror does not erroneously carry over
204 to the handling of other Makefile.am files.
206 - The order of Yacc and Lex flags is now consistent with that of other
207 languages: $(AM_YFLAGS) comes before $(YFLAGS), and $(AM_LFLAGS) before
208 $(LFLAGS), so that the user variables override the developer variables.
210 - Rules generated by Automake now try harder not to change any files when
211 `make -n' is invoked. Fixes include compilation of Emacs Lisp, Vala, or
212 Yacc source files and the rule to update config.h.
214 - The code for automatic dependency tracking works around a Solaris
215 make bug triggered by sources containing repeated slashes when the
216 `subdir-objects' option was used.
218 - The parallel-tests driver no longer produces erroneous results with
219 Tru64/OSF 5.1 sh upon unreadable log files.
221 - The makedepend and hp depmodes now work better with VPATH builds.
223 - Java sources specified with check_JAVA are no longer compiled for
224 "make all", but only for "make check".
226 - An usage like "java_JAVA = foo.java" will now cause Automake to warn
227 and error out if `javadir' is undefined, instead of silently producing
228 a broken Makefile.in.
230 - aclocal and automake now honour the configure-time definitions of
231 AUTOCONF and AUTOM4TE when they spawn autoconf or autom4te processes.
233 - The `install-info' recipe no longer tries to guess whether the
234 `install-info' program is from Debian or from GNU, and adaptively
235 change its behaviour; this has proven to be frail and easy to
240 * Version requirements:
242 - Autoconf 2.62 or greater is required.
244 * Changes to aclocal:
246 - The autoconf version check implemented by aclocal in aclocal.m4
247 (and new in Automake 1.10) is degraded to a warning. This helps
248 in the common case where the Autoconf versions used are compatible.
250 * Changes to automake:
252 - The automake program can run multiple threads for creating most
253 Makefile.in files concurrently, if at least Perl 5.7.2 is available
254 with interpreter-based threads enabled. Set the environment variable
255 AUTOMAKE_JOBS to the maximum number of threads to use, in order to
256 enable this experimental feature.
258 * Changes to Libtool support:
260 - Libtool generic flags are now passed to the install and uninstall
263 - distcheck works with Libtool 2.x even when LT_OUTPUT is used, as
264 config.lt is removed correctly now.
268 - subdir-object mode works now with Fortran (F77, FC, preprocessed
269 Fortran, and Ratfor).
271 - For files with extension .f90, .f95, .f03, or .f08, the flag
272 $(FCFLAGS_f[09]x) computed by AC_FC_SRCEXT is now used in compile rules.
274 - Files with extension .sx are also treated as preprocessed assembler.
276 - The default source file extension (.c) can be overridden with
277 AM_DEFAULT_SOURCE_EXT now.
279 - Python 3.0 is supported now, Python releases prior to 2.0 are no
282 - AM_PATH_PYTHON honors python's idea about the site directory.
284 - There is initial support for the Vala programming language, when using
287 * Miscellaneous changes:
289 - Automake development is done in a git repository on Savannah now, see
291 http://git.sv.gnu.org/gitweb/?p=automake.git
293 A read-only CVS mirror is provided at
295 cvs -d :pserver:anonymous@pserver.git.sv.gnu.org:/automake.git \
296 checkout -d automake HEAD
298 - "make dist" can now create xz-compressed tarballs,
299 as well as (deprecated?) lzma-compressed tarballs.
301 - `automake --add-missing' will by default install the GPLv3 file as
302 COPYING if it is missing. It will also warn that the license file
303 should be added to source control. Note that Automake will never
304 overwrite an existing COPYING file, even when the `--force-missing'
307 - The manual is now distributed under the terms of the GNU FDL 1.3.
309 - Automake ships and installs man pages for automake and aclocal now.
311 - New shorthand `$(pkglibexecdir)' for `$(libexecdir)/@PACKAGE@'.
313 - install-sh supports -C, which does not update the installed file
314 (and its time stamps) if the contents did not change.
316 - The `gnupload' script has been revamped.
318 - The `depcomp' and `compile' scripts now work with MSVC under MSYS.
320 - The targets `install' and `uninstall' are more efficient now, in that
321 for example multiple files from one Automake variable such as
322 `bin_SCRIPTS' are copied in one `install' (or `libtool --mode=install')
323 invocation if they do not have to be renamed.
325 Both install and uninstall may sometimes enter (`cd' into) the target
326 installation directory now, when no build-local scripts are used.
328 Both install and uninstall do not fail anymore but do nothing if an
329 installation directory variable like `bindir' is set to the empty string.
331 For built-in rules, `make install' now fails reliably if installation
332 of a file failed. Conversely, `make uninstall' even succeeds when
333 issued multiple times.
335 These changes may need some adjustments from users: For example,
336 some `install' programs refuse to install multiple copies of the
337 same file in one invocation, so you may need to remove duplicate
338 entries from file lists.
340 Also, within one set of files, say, nobase_data_DATA, the order of
341 installation may be changed, or even unstable among different hosts,
342 due to the use of associative arrays in awk. The increased use of
343 awk matches a similar move in Autoconf to provide for better scaling.
345 Further, most undocumented per-rule install command variables such as
346 binSCRIPT_INSTALL have been removed because they are not needed any
347 more. Packages which use them should be using the appropriate one of
348 INSTALL_{DATA,PROGRAM,SCRIPT} or their install_sh_{DATA,PROGRAM,SCRIPT}
349 counterpart, depending on the type of files and the need for automatic
350 target directory creation.
352 - The "deleted header file problem" for *.m4 files is avoided by
353 stub rules. This allows `make' to trigger a rerun of `aclocal'
354 also if some previously needed macro file has been removed.
356 - Rebuild rules now also work for a removed `subdir/Makefile.in' in
357 an otherwise up to date tree.
359 - The `color-tests' option causes colored test result output on terminals.
361 - The `parallel-tests' option enables a new test driver that allows for
362 parallel test execution, inter-test dependencies, lazy test execution
363 for unit-testing, re-testing only failed tests, and formatted result output
364 as RST (reStructuredText) and HTML. Enabling this option may require some
365 changes to your test suite setup; see the manual for details.
367 - The `silent-rules' option enables Linux kernel-style silent build output.
368 This option requires the widely supported but non-POSIX `make' feature
369 of recursive variable expansion, so do not use it if your package needs
370 to build with `make' implementations that do not support it.
372 To enable less verbose build output, the developer has to use the Automake
373 option `silent-rules' in `AM_INIT_AUTOMAKE', or call the `AM_SILENT_RULES'
374 macro. The user may then set the default verbosity by passing the
375 `--enable-silent-rules' option to `configure'. At `make' run time, this
376 default may be overridden using `make V=0' for less verbose, and `make V=1'
377 for backward-compatible verbose output.
379 - New prefix `notrans_' for manpages which should not be transformed
380 by --program-transform.
382 - New macro AM_COND_IF for conditional evaluation and conditional
385 - For AC_CONFIG_LINKS, if source and destination are equal, do not
386 remove the file in a non-VPATH build. Such setups work with Autoconf
389 - AM_MAINTAINER_MODE now allows for an optional argument specifying
392 - AM_SUBST_NOTMAKE may prevent substitution of AC_SUBSTed variables,
393 useful especially for multi-line values.
395 - Automake's early configure-time sanity check now diagnoses an
396 unsafe absolute source directory name and makes configure fail.
398 - The Automake macros and rules cope better with whitespace in the
399 current directory name, as long as the relative path to `configure'
400 does not contain whitespace. To this end, the values of `$(MISSING)'
401 and `$(install_sh)' may contain suitable quoting, and their expansion
402 might need `eval'uation if used outside of a makefile. These
403 undocumented variables may be used in several documented macros such
404 as $(AUTOCONF) or $(MAKEINFO).
408 * Long-standing bugs:
410 - Fix aix dependency tracking for libtool objects.
412 - Work around AIX sh quoting issue in AC_PROG_CC_C_O, leading to
413 unnecessary use of the `compile' script.
415 - For nobase_*_LTLIBRARIES with nonempty directory components, the
416 correct `-rpath' argument is used now.
418 - `config.status --file=Makefile depfiles' now also works with the
419 extra quoting used internally by Autoconf 2.62 and newer
420 (it used to work only without the `--file=' bit).
422 - The `missing' script works better with versioned tool names.
424 - Semantics for `missing help2man' have been revamped:
426 Previously, if `help2man' was not present, `missing help2man' would have
427 the following semantics: if some man page was out of date but present, then
428 a warning would be printed, but the exit status was 0. If the man page was
429 not present at all, then `missing' would create a replacement man page
430 containing an error message, and exit with a status of 2. This does not play
431 well with `make': the next run will see this particular man page as being up
432 to date, and will only error out on the next generated man page, if any;
433 repeat until all pages are done. This was not desirable.
435 These are the new semantics: if some man page is not present, and help2man
436 is not either, then `missing' will warn and generate the replacement page
437 containing the error message, but exit successfully. However, `make dist'
438 will ensure that no such bogus man pages are packaged into a tarball.
440 - Targets provided by automake behave better with `make -n', in that they
441 take care not to create files.
443 - `config.status Makefile... depfiles' works fine again in the presence of
444 disabled dependency tracking.
446 - The default no-op recursive rules for these targets also work with BSD make
447 now: html, install-html, install-dvi, install-pdf, install-pdf, install-info.
449 - `make distcheck' works also when both a directory and some file below it
450 have been added to a distribution variable, such as EXTRA_DIST or *_SOURCES.
452 - Texinfo dvi, ps, pdf, and html output files are not removed upon
453 `make mostlyclean' any more; only the LaTeX by-products are.
455 - Renamed objects also work with the `subdir-objects' option and
456 source file languages which Automake does not know itself.
458 - `automake' now correctly complains about variable assignments which are
459 preceded by a comment, extend over multiple lines with backslash-escaped
460 newlines, and end in a comment sign. Previous versions would silently
461 and wrongly ignore such assignments completely.
463 * Bugs introduced by 1.10:
465 - Fix output of dummy dependency files in presence of post-processed
466 Makefile.in's again, but also cope with long lines.
468 - $(EXEEXT) is automatically appended to filenames of XFAIL_TESTS
469 that have been declared as programs in the same Makefile.
470 This is for consistency with the analogous change to TESTS in 1.10.
472 - Fix order of standard includes to again be `-I. -I$(srcdir)',
473 followed by directories containing config headers.
477 * Version requirements:
479 - Autoconf 2.60 or greater is required.
481 - Perl 5.6 or greater is required.
483 * Changes to aclocal:
485 - aclocal now also supports -Wmumble and -Wno-mumble options.
487 - `dirlist' entries (for the aclocal search path) may use shell
488 wildcards such as `*', `?', or `[...]'.
490 - aclocal supports an --install option that will cause system-wide
491 third-party macros to be installed in the local directory
492 specified with the first -I flag. This option also uses #serial
493 lines in M4 files to upgrade local macros.
495 The new aclocal options --dry-run and --diff help to review changes
496 before they are installed.
498 - aclocal now outputs an autoconf version check in aclocal.m4 in
499 projects using automake.
501 For a few years, automake and aclocal have been calling autoconf
502 (or its underlying engine autom4te) to accurately retrieve the
503 data they need from configure.ac and its siblings. Doing so can
504 only work if all autotools use the same version of autoconf. For
505 instance a Makefile.in generated by automake for one version of
506 autoconf may stop working if configure is regenerated with another
507 version of autoconf, and vice versa.
509 This new version check ensures that the whole build system has
510 been generated using the same autoconf version.
512 * Support for new Autoconf macros:
514 - The new AC_REQUIRE_AUX_FILE Autoconf macro is supported.
516 - If `subdir-objects' is set, and AC_CONFIG_LIBOBJ_DIR is specified,
517 $(LIBOBJS), $(LTLIBOBJS), $(ALLOCA), and $(LTALLOCA) can be used
518 in different directories. However, only one instance of such a
519 library objects directory is supported.
521 * Change to Libtool support:
523 - Libtool generic flags (those that go before the --mode=MODE option)
524 can be specified using AM_LIBTOOLFLAGS and target_LIBTOOLFLAGS.
526 * Yacc and Lex changes:
528 - The rebuild rules for distributed Yacc and Lex output will avoid
529 overwriting existing files if AM_MAINTAINER_MODE and maintainer-mode
532 - ylwrap is now always used for lex and yacc source files,
533 regardless of whether there is more than one source per directory.
537 - Preprocessed assembler (*.S) compilation now honors CPPFLAGS,
538 AM_CPPFLAGS and per-target _CPPFLAGS, and supports dependency
539 tracking, unlike non-preprocessed assembler (*.s).
541 - subdir-object mode works now with Assembler. Automake assumes
542 that the compiler understands `-c -o'.
544 - Preprocessed assembler (*.S) compilation now also honors
545 $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES).
547 - Improved support for Objective C:
548 - Autoconf's new AC_PROG_OBJC will enable automatic dependency tracking.
549 - A new section of the manual documents the support.
551 - New support for Unified Parallel C:
552 - AM_PROG_UPC looks for a UPC compiler.
553 - A new section of the manual documents the support.
555 - Per-target flags are now correctly handled in link rules.
557 For instance maude_CFLAGS correctly overrides AM_CFLAGS; likewise
558 for maude_LDFLAGS and AM_LDFLAGS. Previous versions bogusly
559 preferred AM_CFLAGS over maude_CFLAGS while linking, and they
560 used both AM_LDFLAGS and maude_LDFLAGS on the same link command.
562 The fix for compiler flags (i.e., using maude_CFLAGS instead of
563 AM_CFLAGS) should not hurt any package since that is how _CFLAGS
564 is expected to work (and actually works during compilation).
566 However using maude_LDFLAGS "instead of" AM_LDFLAGS rather than
567 "in addition to" breaks backward compatibility with older versions.
568 If your package used both variables, as in
570 AM_LDFLAGS = common flags
572 a_LDFLAGS = more flags
575 and assumed *_LDFLAGS would sum up, you should rewrite it as
577 AM_LDFLAGS = common flags
579 a_LDFLAGS = $(AM_LDFLAGS) more flags
582 This new behavior of *_LDFLAGS is more coherent with other
583 per-target variables, and the way *_LDFLAGS variables were
584 considered internally.
586 * New installation targets:
588 - New targets mandated by GNU Coding Standards:
593 By default they will only install Texinfo manuals.
594 You can customize them with *-local variants:
600 - The undocumented recursive target `uninstall-info' no longer exists.
601 (`uninstall' is in charge of removing all possible documentation
602 flavors, including optional formats such as dvi, ps, or info even
603 when `no-installinfo' is used.)
605 * Miscellaneous changes:
607 - Automake no longer complains if input files for AC_CONFIG_FILES
608 are specified using shell variables.
610 - clean, distribution, or rebuild rules are normally disabled for
611 inputs and outputs of AC_CONFIG_FILES, AC_CONFIG_HEADERS, and
612 AC_CONFIG_LINK specified using shell variables. However, if these
613 variables are used as ${VAR}, and AC_SUBSTed, then Automake will
614 be able to output rules anyway.
615 (See the Automake documentation for AC_CONFIG_FILES.)
617 - $(EXEEXT) is automatically appended to filenames of TESTS
618 that have been declared as programs in the same Makefile.
619 This is mostly useful when some check_PROGRAMS are listed in TESTS.
621 - `-Wportability' has finally been turned on by default for `gnu' and
622 `gnits' strictness. This means, automake will complain about %-rules
623 or $(GNU Make functions) unless you switch to `foreign' strictness or
624 use `-Wno-portability'.
626 - Automake now uses AC_PROG_MKDIR_P (new in Autoconf 2.60), and uses
627 $(MKDIR_P) instead of $(mkdir_p) to create directories. The
628 $(mkdir_p) variable is still defined (to the same value as
629 $(MKDIR_P)) but should be considered obsolete. If you are using
630 $(mkdir_p) in some of your rules, please plan to update them to
631 $(MKDIR_P) at some point.
633 - AM_C_PROTOTYPES and ansi2knr are now documented as being obsolete.
634 They still work in this release, but may be withdrawn in a future one.
636 - Inline compilation rules for gcc3-style dependency tracking are
639 - Automake installs a "Hello World!" example package in $(docdir).
640 This example is used throughout the new "Autotools Introduction"
641 chapter of the manual.
645 * Makefile.in bloat reduction:
647 - Inference rules are used to compile sources in subdirectories when
648 the `subdir-objects' option is used and no per-target flags are
649 used. This should reduce the size of some projects a lot, because
650 Automake used to output an explicit rule for each such object in
653 - Automake no longer outputs three rules (.o, .obj, .lo) for each
654 object that must be built with explicit rules. It just outputs
655 the rules required to build the kind of object considered: either
656 the two .o and .obj rules for usual objects, or the .lo rule for
659 * Change to Libtool support:
661 - Libtool tags are used with libtool versions that support them.
662 (I.e., with Libtool 1.5 or greater.)
664 - Automake is now able to handle setups where a libtool library is
665 conditionally installed in different directories, as in
668 lib_LTLIBRARIES = liba.la
670 pkglib_LTLIBRARIES = liba.la
672 liba_la_SOURCES = ...
674 * Changes to aclocal:
676 - aclocal now ensures that AC_DEFUNs and AU_DEFUNs it discovers are
677 really evaluated, before it decides to include them in aclocal.m4.
678 This solves nasty problems with conditional redefinitions of
679 Autoconf macros in /usr/share/aclocal/*.m4 files causing extraneous
680 *.m4 files to be included in any project using these macros.
681 (Calls to AC_PROG_EGREP causing libtool.m4 to be included is the
682 most famous instance of this bug.)
684 - Do not complain about missing conditionally AC_REQUIREd macros
685 that are not actually used. In 1.8.x aclocal would correctly
686 determine which of these macros were really needed (and include
687 only these in the package); unfortunately it would also require
688 all of them to be present in order to run. This created
689 situations were aclocal would not work on a tarball distributing
690 all the macros it uses. For instance running aclocal on a project
691 containing only the subset of the Gettext macros in use by the
692 project did not work, because gettext conditionally requires other
695 * Portability improvements:
697 - Tar format can be chosen with the new options tar-v7, tar-ustar, and
698 tar-pax. The new option filename-length-max=99 helps diagnosing
699 filenames that are too long for tar-v7. (PR/414)
701 - Variables aumented with `+=' are now automatically flattened (i.e.,
702 trailing backslashes removed) and then wrapped around 80 colummns
703 (adding trailing backslashes). In previous versions, a long series
709 would result in a single-line definition of VAR that could possibly
710 exceed the maximum line length of some make implementations.
712 Non-augmented variables are still output as they are defined in
717 - Support Fortran 90/95 with the new "fc" and "ppfc" languages.
718 Works the same as the old Fortran 77 implementation; just replace
719 F77 with FC everywhere (exception: FFLAGS becomes FCFLAGS).
720 Requires a version of autoconf which provides AC_PROG_FC (>=2.59).
722 - Support for conditional _LISP.
724 - Support for conditional -hook and -local rules (PR/428).
726 - Diagnose AC_CONFIG_AUX_DIR calls following AM_INIT_AUTOMAKE. (PR/49)
728 - Automake will not write any Makefile.ins after the first error it
729 encounters. The previous Makefile.ins (if any) will be left in
730 place. (Warnings will not prevent output, but remember they can
731 be turned into errors with -Werror.)
733 - The restriction that SUBDIRS must contain direct children is gone.
736 - The manual tells more about SUBDIRS vs. DIST_SUBDIRS.
737 It also gives an example of nested packages using AC_CONFIG_SUBDIRS.
741 * Long-standing bugs:
743 - Define DIST_SUBDIRS even when the `no-dist' or `cygnus' options are used
744 so that `make distclean' and `make maintainer-clean' can work.
746 - Define AR and ARFLAGS even when only EXTRA_LIBRARIES are defined.
748 - Fix many rules to please FreeBSD make, which runs commands with `sh -e'.
750 - Polish diagnostic when no input file is found.
754 * Long-standing bugs:
756 - Fix AM_PATH_PYTHON to correctly display $PYTHON when it has been
757 overridden by the user.
759 - Honor PATH_SEPARATOR in various places of the Automake package, for
762 - Adjust dependency tracking mode detection to ICC 8.0's new output.
765 - Fix install-sh so it can install the `mv' binary... using `mv'.
767 - Fix tru64 dependency tracking for libtool objects.
769 - Work around Exuberant Ctags when creating a TAGS files in a directory
770 without files to scan but with subdirectories to include.
772 * Bugs introduced by 1.8:
774 - Fix an "internal error" when @LIBOBJS@ is used in a variable that is
775 not defined in the same conditions as the _LDADD that uses it.
777 - Do not warn when JAVAROOT is overridden, this is legitimate.
781 * Long-standing bugs:
783 - Quote filenames in installation rules, in case $DESTDIR, $prefix,
784 or any of the other *dir variables contain a space.
786 Please note that Automake does not and cannot support spaces in
787 filenames that are involved during the build. This change affects
788 only installation paths, so that `make install' does not bomb out
789 in packages configured with
790 ./configure --prefix '/c/Program Files'
792 - Fix the depfiles output so it works with GNU sed (<4.1) even when
793 POSIXLY_CORRECT is set.
795 - Do not AC_SUBST(LIBOBJS) in AM_WITH_REGEX. This macro was unusable
796 since Autoconf 2.54, which defines LIBOBJS itself.
798 - Fix a potential (but unlikely) race condition in parallel elisp
799 builds. (Introduced in 1.7.3.)
801 - Do not assume that users override _DEPENDENCIES in all conditions
802 where Automake will try to define them.
804 - Do not use `mkdir -p' in mkinstalldirs, unless this is GNU mkdir.
805 Solaris 8's `mkdir -p' is not thread-safe and can break parallel
808 This fix also affects the $(mkdir_p) variable defined since
809 Automake 1.8. It will be set to `mkdir -p' only if mkdir is GNU
810 mkdir, and to `mkinstalldirs' or `install-sh -d' otherwise.
812 - Secure temporary directory creation in `make distcheck'. (PR/413)
814 - Do not generate two build rules for `parser.h' when the
815 parser appears in two different conditionals.
817 - Work around a Solaris 8 /bin/sh bug in the test for dependency
818 checking. Usually ./configure will not pick this shell; so this
819 fix only helps cases where the shell is forced to /bin/sh.
821 * Bugs introduced by 1.8:
823 - In some situations (hand-written `m4_include's), aclocal would
824 call the `File::Spec->rel2abs' method, which was only introduced
825 in Perl 5.6. This new version reestablish support Perl 5.005.
827 It is likely that the next major Automake releases will require at
828 least Perl 5.6. Consider upgrading your development environment
829 if you are still using the five-year-old Perl 5.005.
831 - Automake would sometimes fail to define rules for targets listed
832 in variables defined in multiple conditions. For instance on
838 it would define only the `a.$(OBJEXT): a.c' rule and omit the
839 `b.$(OBJEXT): b.c' rule.
841 * New sections in manual:
843 - Third-Party Makefiles: how to interface third party Makefiles.
844 - Upgrading: upgrading packages to newer Automake versions.
845 - Multiple Outputs: handling tools that produce many outputs.
849 * A (well known) portability bug slipped in the changes made to
850 install-sh in Automake 1.8.1. The broken install-sh would refuse to
851 install anything on Tru64.
853 * Fix install rules for conditionally built python files. (This never
858 * Bugs introduced by 1.8:
860 - Fix Config.pm import error with old Perl versions (at least
861 5.005_03). One symptom is that aclocal could not find its macro
864 - Automake 1.8 used `mkdir -m 0755 -p --' to ensure that directories
865 created by `make install' are always world readable, even if the
866 installer happens to have an overly restrictive umask (e.g. 077).
867 This was a mistake and has been reverted. There are at least two
868 reasons why we must not use `-m 0755':
869 - it causes special bits like SGID to be ignored,
870 - it may be too restrictive (some setups expect 775 directories).
872 - Fix aclocal to honor definitions located in files which have been
873 m4_included manually. aclocal 1.8 had been updated to check
874 m4_included files for new requirements, but forgot that these
875 m4_included files can also provide new definitions.
877 Note that if you have such a setup, we recommend you get rid of
878 it. In the past, there was a reason to m4_include files manually:
879 aclocal used to duplicate entire M4 files into aclocal.m4, even
880 files that were distributed. Some packages were therefore
881 m4_including the distributed file directly, and playing some
882 tricks to ensure aclocal would not copy that file to aclocal.m4,
883 in order to limit the amount of duplication. Since aclocal 1.8.x
884 will precisely output m4_includes for local M4 files, we recommend
885 that you clean up your setup, removing all manual m4_includes and
886 letting aclocal output them.
888 - Output detailed menus in the Info version if the Automake manual,
889 so that Emacs can locate the indexes.
891 - configure.ac and configure were listed twice in DIST_COMMON (an
892 internal variable where Automake lists configury files to
893 distribute). This was harmless, but unaesthetic.
895 - Use `chmod a-w' instead of `chmod -w' as the latter honors umask.
896 This was an issue only in the Automake package itself, not in
899 - Automake assumed that all AC_CONFIG_LINKS arguments had the form
900 DEST:SRC. This was wrong, as some packages do
901 AC_CONFIG_LINKS($computedlinks). This version no longer abort in
904 - Contrary to mkinstalldirs, $(mkdir_p) was expecting exactly one
905 argument. This caused two kinds of failures:
906 - Rules installing data in a conditionally defined directory
907 failed when that directory was undefined. In this case no
908 argument was supplied.
909 - `make installdirs' failed, because several directories were
910 passed to $(mkdir_p). This was an issue only on platform
911 were $(mkdir_p) is implemented with `install-sh -d'.
912 $(mkdir_p) as been changed to accept 0 or more arguments, as
915 * Long-standing bugs:
917 - Fix an unexpected diagnostic occurring when users attempt
918 to override some internal variables that Automake appends to.
920 - aclocal now scans configure.ac for macro definitions (PR/319).
922 - Fix a portability issue with OSF1/Tru64 Make. If a directory
923 distributes files which are outside itself (this usually occurs
924 when using AC_CONFIG_AUX_DIR([../dir]) to use auxiliary files
925 from a parent package), then `make distcheck' fails due to an
926 optimization performed by OSF1/Tru64 Make in its VPATH handling.
927 (tests/subpkg2.test failure)
929 - Fix another portability issue with Sun and OSF1/Tru64 Make.
930 In a VPATH-build configuration, `make install' would install
931 nobase_ files to wrong locations.
933 - Fix a Perl `uninitialized value' diagnostic occurring when
934 automake complains that a Texinfo file does not have a
935 @setfilename statement.
937 - Erase config.status.lineno during `make distclean'. This file
938 can be created by config.status. Automake already knew about
939 configure.lineno, but forgot config.status.lineno.
941 - Distribute all files, even those which are built and installed
942 conditionally. This change affects files listed in conditionally
943 defined *_HEADERS and *_PYTHON variable (unless they are nodist_*)
944 as well as those listed in conditionally defined dist_*_DATA,
945 dist_*_JAVA, dist_*_LISP, and dist_*_SCRIPTS variables.
947 - Fix AM_PATH_LISPDIR to avoid \? in sed regular expressions; it
948 doesn't conform to POSIX.
950 - Normalize help strings for configure variables and options added
955 - Check for python2.4 in AM_PATH_PYTHON.
957 * Spurious failures in test suite:
959 - tests/libtool5.test, tests/ltcond.test, tests/ltcond2.test,
960 tests/ltconv.test: fix failures with CVS Libtool.
961 - tests/aclocal6.test: fix failure if autom4te.cache is disabled.
962 - tests/txinfo24.test, tests/txinfo25.test, tests/txinfo28.test:
963 fix failures with old Texinfo versions.
969 - The NEWS file is more verbose.
973 - Autoconf 2.58 or greater is required.
977 - Default source file names in the absence of a _SOURCES declaration
978 are made by removing any target extension before appending `.c', so
979 to make the libtool module `foo.la' from `foo.c', you only need to
982 lib_LTLIBRARIES = foo.la
983 foo_la_LDFLAGS = -module
985 For backward compatibility, foo_la.c will be used instead of
986 foo.c if this file exists or is the explicit target of a rule.
987 However -Wobsolete will warn about this deprecated naming.
989 - AR's `cru' flags are now set in a global ARFLAGS variable instead
990 of being hard-coded in each $(AR) invocation, so they can be
991 substituted from configure.ac. This has been requested by people
992 dealing with non-POSIX ar implementations.
994 - New warning option: -Woverride. This will warn about any user
995 target or variable definitions which override Automake
998 - Texinfo rules back up and restore info files when makeinfo fails.
1000 - Texinfo rules now support the `html' target.
1001 Running this requires Texinfo 4.0 or greater.
1003 `html' is a new recursive target, so if your package mixes
1004 hand-crafted `Makefile.in's with Automake-generated
1005 `Makefile.in's, you should adjust the former to support (or
1006 ignore) this target so that `make html' recurses successfully. If
1007 you had a custom `html' rule in your `Makefile.am', it's better to
1008 rename it as `html-local', otherwise your rule will override
1009 Automake's new rule (you can check that by running `automake
1010 -Woverride') and that will stop the recursion to subdirectories.
1012 Last but not least, this `html' rule is declared PHONY, even when
1013 overridden. Fortunately, it appears that few packages use a
1014 non-PHONY `html' rule.
1016 - Any file which is m4_included from configure.ac will appear as a
1017 configure and Makefile.in dependency, and will be automatically
1020 - The rules for rebuilding Makefiles and Makefile.ins will now
1021 rebuild all Makefiles and all Makefile.ins at once when one of
1022 configure's dependencies has changed. This is considerably faster
1023 than previous implementations, where config.status and automake
1024 were run separately in each directory (this still happens when you
1025 change a Makefile.am locally, without touching configure.ac or
1026 friends). Doing this also solves a longstanding issue: these
1027 rebuild rules failed to work when adding new directories to the
1028 tree, forcing you to run automake manually.
1030 - For similar reasons, the rules to rebuild configure,
1031 config.status, and aclocal.m4 are now defined in all directories.
1032 Note that if you were using the CONFIG_STATUS_DEPENDENCIES and
1033 CONFIGURE_DEPENDENCIES (formerly undocumented) variables, you
1034 should better define them in all directories. This is easily done
1035 using an AC_SUBST (make sure you prefix these dependencies with
1036 $(top_srcdir) since this variable will appear at different
1037 levels of the build tree).
1039 - aclocal will now use `m4_include' instead of copying local m4
1040 files into aclocal.m4. (Local m4 files are those you ship with
1041 your project, other files will be copied as usual.)
1043 Because m4_included files are automatically distributed, it means
1044 for most projects there is no point in EXTRA_DISTing the list of
1045 m4 files which are used. (You can probably get rid of
1046 m4/Makefile.am if you had one.)
1048 - aclocal will avoid touching aclocal.m4 when possible, so that
1049 Autom4te's cache isn't needlessly invalidated. This behavior can
1050 be switched off with the new `--force' option.
1052 - aclocal now uses Autoconf's --trace to detect macros which are
1053 actually used and will no longer include unused macros simply
1054 because they where mentioned. This was often the case for macros
1055 called conditionally.
1057 - New options no-dist and no-dist-gzip.
1059 - compile, depcomp, elisp-comp, install-sh, mdate-sh, mkinstalldirs,
1060 py-compile, and ylwrap, now all understand --version and --help.
1062 - Automake will now recognize AC_CONFIG_LINKS so far as removing created
1063 links as part of the distclean target and including source files in
1066 - AM_PATH_PYTHON now supports ACTION-IF-FOUND and ACTION-IF-NOT-FOUND
1067 argument. The latter can be used to override the default behavior
1068 (which is to abort).
1070 - Automake will exit with $? = 63 on version mismatch. (So does
1071 Autoconf 2.58) missing knows this, and in this case it will
1072 emulate the tools as if they were absent. Because older versions
1073 of Automake and Autoconf did not use this exit code, this change
1074 will only be useful in projects generated with future versions of
1077 - When using AC_CONFIG_FILES with multiple input files, Automake
1078 generates the first ".in" input file for which a ".am" exists.
1079 (Former versions would try to use only the first input file.)
1081 - lisp_DATA is now allowed. If you are using the empty ELCFILES
1082 idiom to disable byte-compilation of lisp_LISP files, it is
1083 recommended that you switch to using lisp_DATA. Note that
1084 this is not strictly equivalent: lisp_DATA will install elisp
1085 files even if emacs is not installed, while *_LISP do not
1086 install anything unless emacs is found.
1088 - Makefiles will prefer `mkdir -p' over mkinstalldirs if it is
1089 available. This selection is achieved through the Makefile
1090 variable $(mkdir_p) that is set by AM_INIT_AUTOMAKE to either
1091 `mkdir -m 0755 -p --', `$(mkinstalldirs) -m 0755', or
1092 `$(install_sh) -m 0755 -d'.
1096 - Because `mkdir -p' is available on most platforms, and we can use
1097 `install-sh -d' when it is not, the use of the mkinstalldirs
1098 script is being phased out. `automake --add-missing' no longer
1099 installs it, and if you remove mkinstalldirs from your package,
1100 automake will define $(mkinstalldirs) as an alias for $(mkdir_p).
1102 Gettext 0.12.1 still requires mkinstalldirs. Fortunately
1103 gettextize and autopoint will install it when needed. Automake
1104 will continue to define the $(mkinstalldirs) and to distribute
1105 mkinstalldirs when this script is in the source tree.
1107 - AM_PROG_CC_STDC is now empty. The content of this macro was
1108 merged in AC_PROG_CC. If your code uses $am_cv_prog_cc_stdc, you
1109 should adjust it to use $ac_cv_prog_cc_stdc instead. (This
1110 renaming should be safe, even if you have to support several,
1111 versions of Automake, because AC_PROG_CC defines this variable
1112 since Autoconf 2.54.)
1114 - Some users where using the undocumented ACLOCAL_M4_SOURCES
1115 variable to override the aclocal.m4 dependencies computed
1116 (inaccurately) by older versions of Automake. Because Automake
1117 now tracks configure's m4 dependencies accurately (see m4_include
1118 above), the use of ACLOCAL_M4_SOURCES should be considered
1119 obsolete and will be flagged as such when running `automake
1124 - Defining programs conditionally using Automake conditionals no
1125 longer leads to a combinatorial explosion. The following
1126 construct used to be troublesome when used with dozens of
1141 Likewise for _SOURCES, _LDADD, and _LIBADD variables.
1143 - Due to implementation constraints, previous versions of Automake
1144 proscribed multiple conditional definitions of some variables
1154 All _PROGRAMS, _LDADD, and _LIBADD variables were affected.
1155 This restriction has been lifted, and these variables now
1156 support multiple conditional definitions as do other variables.
1158 - Cleanup the definitions of $(distdir) and $(top_distdir).
1159 $(top_distdir) now points to the root of the distribution
1160 directory created during `make dist', as it did in Automake 1.4,
1161 not to the root of the build tree as it did in intervening
1162 versions. Furthermore these two variables are now only defined in
1163 the top level Makefile, and passed to sub-directories when running
1166 - The --no-force option now correctly checks the Makefile.in's
1167 dependencies before deciding not to update it.
1169 - Do not assume that make files are called Makefile in cleaning rules.
1171 - Update .info files in the source tree, not in the build tree. This
1172 is what the GNU Coding Standard recommend. Only Automake 1.7.x
1173 used to update these files in the build tree (previous versions did
1174 it in the source tree too), and it caused several problems, varying
1175 from mere annoyance to portability issues.
1177 - COPYING, COPYING.LIB, and COPYING.LESSER are no longer overwritten
1178 when --add-missing and --force-missing are used. For backward
1179 compatibility --add-missing will continue to install COPYING (in
1180 `gnu' strictness) when none of these three files exist, but this
1181 use is deprecated: you should better choose a license yourself and
1182 install it once for all in your source tree (and in your code
1185 - Fix ylwrap so that it does not overwrite header files that haven't
1186 changed, as the inline rule already does.
1188 - User-defined rules override automake-defined rules for the same
1189 targets, even when rules do not have commands. This is not new
1190 (and was documented), however some of the automake-generated
1191 rules have escaped this principle in former Automake versions.
1192 Rules for the following targets are affected by this fix:
1194 clean, clean-am, dist-all, distclean, distclean-am, dvi, dvi-am,
1195 info, info-am, install-data-am, install-exec-am, install-info,
1196 install-info-am, install-man, installcheck-am, maintainer-clean,
1197 maintainer-clean-am, mostlyclean, mostlyclean-am, pdf, pdf-am,
1198 ps, ps-am, uninstall-am, uninstall-info, uninstall-man
1200 Practically it means that an attempt to supplement the dependencies
1201 of some target, as in
1203 clean: my-clean-rule
1205 will now *silently override* the automake definition of the
1206 rule for this target. Running `automake -Woverride' will diagnose
1207 all such overriding definitions.
1209 It should be noted that almost all these targets support a *-local
1210 variant that is meant to supplement the automake-defined rule
1211 (See node `Extending' in the manual). The above rule should
1214 clean-local: my-clean-rule
1216 These *-local targets have been documented since at least
1217 Automake 1.2, so you should not fear the change if you have
1218 to support multiple automake versions.
1222 - The Automake manual is now distributed under the terms of the GNU FDL.
1224 - Targets dist-gzip, dist-bzip2, dist-tarZ, dist-zip are always defined.
1226 - core dumps are no longer removed by the cleaning rules. There are
1227 at least three reasons for this:
1228 1. These files should not be created by any build step,
1229 so their removal do not fit any of the cleaning rules.
1230 Actually, they may be precious to the developer.
1231 2. If such file is created during a build, then it's clearly a
1232 bug Automake should not hide. Not removing the file will
1233 cause `make distcheck' to complain about its presence.
1234 3. Operating systems have different naming conventions for
1235 core dump files. A core file on one system might be a
1236 completely legitimate data file on another system.
1238 - RUNTESTFLAGS, CTAGSFLAGS, ETAGSFLAGS, JAVACFLAGS are no longer
1239 defined by Automake. This means that any definition in the
1240 environment will be used, unless overridden in the Makefile.am or
1241 on the command line. The old behavior, where these variables were
1242 defined empty in each Makefile, can be obtained by AC_SUBSTing or
1243 AC_ARG_VARing each variable from configure.ac.
1245 - CONFIGURE_DEPENDENCIES and CONFIG_STATUS_DEPENDENCIES are now
1246 documented. (The is not a new feature, these variables have
1247 been there since at least Automake 1.4.)
1249 Bugs fixed in 1.7.9:
1250 * Fix install-strip to work with nobase_ binaries.
1251 * Fix renaming of #line directives in ylwrap.
1252 * Rebuild with Autoconf 2.59. (1.7.8 was not installable with pdksh.)
1254 Bugs fixed in 1.7.8:
1255 * Remove spurious blank lines in cleaning rules introduced in 1.7.7.
1256 * Fix detection of Debian's install-info, broken since version 1.5.
1257 (Debian bug #213524).
1258 * Honor -module if it appears in AM_LDFLAGS (i.e., relax name checking)
1259 This was only done for libfoo_LDFLAGS and LDFLAGS in previous versions.
1261 Bugs fixed in 1.7.7:
1262 * The implementation of automake's --no-force option is unreliable,
1263 so this option is ignored in this version. A real fix will appear in
1264 Automake 1.8. (Debian Bug #206299)
1265 * AM_PATH_PYTHON: really check the whole list of interpreters if no
1266 argument is given. (PR/399)
1267 * Do not warn about leading `_' in variable names, even with -Wportability.
1268 * Support user redefinitions of TEXINFO_TEX.
1269 * depcomp: support AIX Compiler version 6.
1270 * Fix missing rebuilds during `make dist' with BSD make.
1271 (Could produce tarballs containing out-of-date files.)
1272 * Resurrect multilib support.
1273 * Noteworthy manual updates:
1274 - Extending aclocal: how to write m4 macros that won't trigger warnings
1276 - A Shared Library: Rewrite and split into subsections.
1278 Bugs fixed in 1.7.6:
1279 * Fix depcomp's icc mode for ICC 7.1.
1280 * Diagnose calls to AC_CONFIG_FILES and friends with not enough arguments.
1281 * Fix maintainer-clean's removal of autom4te.cache in VPATH builds.
1282 * Fix AM_PATH_LISPDIR to work with POSIXLY_CORRECT=1.
1283 * Fix the location reported in some diagnostics related to AUTOMAKE_OPTIONS.
1284 * Remove Latin-1 characters from elisp-comp.
1285 * Update the manual's @dircategory to match the Free Software Directory.
1287 Bugs fixed in 1.7.5:
1288 * Update install-sh's license to remove an advertising clause.
1289 (Debian bug #191717)
1290 * Fix a bug introduced in 1.7.4, related to BUILT_SOURCE handling,
1291 that caused invalid Makefile.ins to be generated.
1292 * Make sure AM_MAKE_INCLUDE doesn't fail when a `doit' file exists.
1293 * New FAQ entry: renamed objects.
1295 Bugs fixed in 1.7.4:
1296 * Tweak the TAGS rule to support Exuberant Ctags (in addition to
1297 the Emacs implementation)
1298 * Fix output of aclocal.m4 dependencies in subdirectories.
1299 * Use `mv -f' instead of `mv' in fastdep rules.
1300 * Upgrade mdate-sh to work on OS/2.
1301 * Don't byte-compile elisp files when ELCFILES is set empty.
1302 (this documented feature was broken by 1.7.3)
1303 * Diagnose trailing backslashes on last line of Makefile.am.
1304 * Diagnose whitespace following trailing backslashes.
1305 * Multiple tests are now correctly supported in DEJATOOL. (PR/388)
1306 * Fix rebuilt rules for AC_CONFIG_FILES([Makefile:Makefile.in:Makefile.bot])
1308 * `make install' will build `BUILT_SOURCES' first.
1309 * Minor documentation fixes.
1311 Bugs fixed in 1.7.3:
1312 * Fix stamp files numbering (when using multiple AC_CONFIG_HEADERS).
1313 * Query distutils for `pythondir' and `pythonexecdir', instead of
1314 using an hardcoded path. This should allow builds on 64-bit
1315 distributions that usually use lib64/ instead of lib/.
1316 * AM_PATH_PYTHON will also search for python2.3.
1317 * elisp files are now built all at once instead of one by one. Besides
1318 incurring a speed-up, this is required to support interdependent elisp files.
1319 * Support for DJGPP:
1320 - `make distcheck' will now work in `_inst/' and `_build' instead
1321 of `=inst/' and `=build/'
1322 - use `_dirstamp' when the file-system doesn't support `.dirstamp'
1323 - install/uninstall `*.i[0-9][0-9]'-style info files
1324 - more changes that affect only the Automake package (not its output)
1325 * Fix some incompatibilities with upcoming perl-5.10.
1326 * Properly quote AC_PACKAGE_TARNAME and AC_PACKAGE_VERSION when defining
1327 PACKAGE and VERSION.
1329 - dashmstdout and dashXmstdout modes: don't use `-o /dev/null', this
1330 is troublesome with gcc and Solaris compilers. (PR/385)
1331 - makedepend mode: work with Libtool. (PR/385 too)
1333 * better support for unusual gettext setups, such as multiple po/ directories
1335 - Flag missing po/ and intl/ directories as warnings, not errors.
1336 - Disable these warnings if po/ does not exist.
1337 * Noteworthy manual updates:
1339 - Document how AC_CONFIG_AUX_DIR interacts with missing files.
1341 - Document `AM_YFLAGS = -d'. (PR/382)
1343 Bugs fixed in 1.7.2:
1344 * Fix installation and uninstallation of Info files built in subdirectories.
1345 * Do not run `./configure --with-included-gettext' during `make distcheck'
1346 if AM_GNU_GETTEXT([external]) is used.
1347 * Correctly uninstall renamed man pages.
1348 * Do not strip escaped newline in variables defined in one condition
1349 and augmented in another condition.
1350 * Fix ansi2knr rules for LIBOBJS sources.
1351 * Clean all known Texinfo index files, not only those which appear to
1352 be used, because we cannot know wich indexes are used in included files.
1353 (PR/375, Debian Bug #168671)
1354 * Honor only the first @setfilename seen in a Texinfo file.
1355 * Treat "required file X not found" diagnostics as errors (exit status 1).
1356 * Don't complain that a required file is not found when it is a Makefile
1358 * Don't use single suffix inference rules when building `.info'-less
1359 Info files, for the sake of Solaris make.
1360 * The `check' target now depends on `$(BUILT_SOURCES)'. (PR/359)
1361 * Recognize multiple inference rules such as `.a.b .c.d:'. (PR/371)
1362 * Warn about multiple inference rules when -Wportability is used. (PR/372)
1363 * Fix building of deansified files from subdirectories. (PR/370)
1364 * Add missing `fi' in the .c->.obj rules.
1365 * Improve install-sh to work even when names contain spaces or certain
1366 (but not all) shell metachars.
1367 * Fix the following spurious failures in the test suite:
1368 depcomp2.test, gnits2.test, gnits3.test, python3.test, texinfo13.test
1369 * Noteworthy manual updates:
1370 - Augment the section about BUILT_SOURCES.
1371 - Mention that AM_PROG_CC_STDC is a relic that is better avoided today.
1373 Bugs fixed in 1.7.1:
1374 * Honor `ansi2knr' for files built in subdirectories, or using per-targets
1376 * Aclocal should now recognize macro names containing parentheses, e.g.
1377 AC_DEFUN([AC_LANG_PREPROC(Fortran 90)], [...]).
1378 * Erase *.sum and *.log files created by DejaGnu, during `make distclean'.
1380 * Install Python files even if they were built. (PR/369)
1381 * Have stamp-vti dependent upon configure instead of configure.ac, as the
1382 version might not be defined in the latter. (PR/358)
1383 * Reorder arguments passed to a couple of commands, so things works
1384 when POSIXLY_CORRECT=1.
1385 * Fix a regex that can cause Perl to segfault on large input.
1387 * Fix distribution of packages that have some sources defined conditionally,
1388 as in the `Conditional compilation using Automake conditionals' example
1390 * Fix spurious test suite failures on IRIX.
1391 * Don't report a required variable as undefined if it has been
1392 defined conditionally for the "right" conditions.
1393 * Fix cleaning of the /tmp subdirectory used by `make distcheck', in case
1394 `make distcheck' fails.
1395 * Fix distribution of included Makefile fragment, so we don't create
1396 spurious directories in the distribution. (PR/366)
1397 * Don't complain that a target lacks `.$(EXEEXT)' when it has it.
1400 * Autoconf 2.54 is required.
1401 * `aclocal' and `automake' will no longer warn about obsolete
1402 configure macros. This is done by `autoconf -Wobsolete'.
1403 * AM_CONFIG_HEADER, AM_SYS_POSIX_TERMIOS and
1404 AM_HEADER_TIOCGWINSZ_NEEDS_SYS_IOCTL are obsolete (although still
1405 supported). You should use AC_CONFIG_HEADERS, AC_SYS_POSIX_TERMIOS,
1406 and AC_HEADER_TIOCGWINSZ instead. `autoupdate' can upgrade
1407 `configure.ac' for you.
1408 * Support for per-program and per-library `_CPPFLAGS'.
1409 * New `ctags' target (builds CTAGS files).
1410 * Support for -Wmumble and -Wno-mumble, where mumble is a warning category
1411 (see `automake --help' or the manual for a list of them).
1412 * Honor the WARNINGS environment variable.
1413 * Omit the call to depcomp when using gcc3: call the compiler directly.
1414 * A new option, std-options, tests that programs support --help and --version
1415 when `make installcheck' is run. This is enabled by --gnits.
1416 * Texinfo rules now support the `ps' and `pdf' targets.
1417 * Info files are now created in the build directory, not the source directory.
1418 * info_TEXINFOS supports files in subdirectories (this requires Texinfo 4.1
1420 * `make distcheck' will enforce DESTDIR support by attempting
1422 * `+=' can be used in conditionals, even if the augmented variable
1423 was defined for another condition.
1424 * Makefile fragments (inserted with `include') are always distributed.
1425 * Use Autoconf's --trace interface to inspect configure.ac and get
1426 a more accurate view of it.
1427 * Add support for extending aclocal's default macro search path
1428 using a `dirlist' file within the aclocal directory.
1429 * automake --output-dir is deprecated.
1430 * The part of the distcheck target that checks whether uninstall actually
1431 removes all installed files has been moved in a separate target,
1432 distuninstallcheck, so it can be overridden easily.
1436 * Support for AM_INIT_GETTEXT([external])
1437 * Bug fixes, including:
1438 - Fix Automake's own `make install' so it works even if `ln' doesn't.
1439 - nobase_ programs and scripts honor --program-transform correctly.
1440 - Erase configure.lineno during `make distclean'.
1441 - Erase YACC and LEX outputs during `make maintainer-clean'.
1444 * Many bug fixes, including:
1445 - Requiring the current version works.
1446 - Fix "$@" portability issues (for Zsh).
1447 - Fix output of dummy dependency files in presence of post-processed
1449 - Don't compute dependencies in background to avoid races with libtool.
1450 - Fix handling of _OBJECTS variables for targets sharing source variables.
1451 - Check dependency mode for Java when AM_PROG_GCJ is used.
1454 * automake --output-dir is deprecated
1455 * Many bug fixes, including:
1456 - Don't choke on AM_LDFLAGS definitions.
1457 - Clean libtool objects from subdirectories.
1458 - Allow configure variables with reserved suffix and unknown prefix
1459 (e.g. AC_SUBST(mumble_LDFLAGS) when 'mumble' is not a target).
1460 - Fix the definition of AUTOMAKE and ACLOCAL in configure.
1463 * Autoconf 2.52 is required.
1464 * automake no longer run libtoolize.
1465 This is the job of autoreconf (from GNU Autoconf).
1466 * `dist' generates all the archive flavors, as did `dist-all'.
1467 * `dist-gzip' generates the Gzip tar file only.
1468 * Combining Automake Makefile conditionals no longer lead to a combinatorial
1469 explosion. Makefile.in's keep a reasonable size.
1470 * AM_FUNC_ERROR_AT_LINE, AM_FUNC_STRTOD, AM_FUNC_OBSTACK, AM_PTRDIFF_T
1471 are no longer shipped, since Autoconf 2.52 provides them (both as AM_
1473 * `#line' of Lex and Yacc files are properly set.
1474 * EXTRA_DIST can contain generated directories.
1475 * Support for dot-less extensions in suffix rules.
1476 * The part of the distcheck target that checks whether distclean actually
1477 cleans all built files has been moved in a separate target, distcleancheck,
1478 so it can be overridden easily.
1479 * `make distcheck' will pass additional options defined in
1480 $(DISTCHECK_CONFIGURE_FLAGS) to configure.
1481 * Fixed CDPATH portability problems, in particular for MacOS X.
1482 * Fixed handling of nobase_ targets.
1483 * Fixed support of implicit rules leading to .lo objects.
1484 * Fixed late inclusion of --add-missing files (e.g. depcomp) in DIST_COMMON
1485 * Added uninstall-hook target
1486 * `AC_INIT AM_INIT_AUTOMAKE(tarname,version)' is an obsolete construct.
1487 You can now use `AC_INIT(pkgname,version) AM_INIT_AUTOMAKE' instead.
1488 (Note that "pkgname" is not "tarname", see the manual for details.)
1489 It is also possible to pass a list of global Automake options as
1490 first argument to this new form of AM_INIT_AUTOMAKE.
1491 * Compiler-based assembler is now called `CCAS'; people expected `AS'
1492 to be a real assembler.
1493 * AM_INIT_AUTOMAKE will set STRIP itself when it needs it. Adding
1494 AC_CHECK_TOOL([STRIP], [strip]) manually is no longer required.
1495 * aclocal and automake are also installed with the version number
1496 appended, and some of the install directory names have changed.
1497 This lets you have multiple versions installed simultaneously.
1498 * Support for parsers and lexers in subdirectories.
1501 * Support for `configure.ac'.
1502 * Support for `else COND', `endif COND' and negated conditions `!COND'.
1503 * `make dist-all' is much faster.
1504 * Allows '@' AC_SUBSTs in macro names.
1505 * Faster AM_INIT_AUTOMAKE (requires update of `missing' script)
1506 * User-side dependency tracking. Developers no longer need GNU make
1508 * Uses DIST_SUBDIRS in some situations when SUBDIRS is conditional
1509 * Most files are correctly handled if they appear in subdirs
1510 For instance, a _DATA file can appear in a subdir
1511 * GNU tar is no longer required for `make dist'
1512 * Added support for `dist_' and `nodist_' prefixes
1513 * Added support for `nobase_' prefix
1514 * Compiled Java support
1515 * Support for per-executable and per-library compilation flags
1519 * Added support for the Fortran 77 programming language.
1520 * Re-indexed the Automake Texinfo manual.
1521 * Added `AM_FOOFLAGS' variable for each compiler invocation;
1522 e.g. AM_CFLAGS can be used in Makefile.am to set C compiler flags
1523 * Support for latest autoconf, including support for objext
1524 * Can now put `.' in SUBDIRS to control build order
1525 * `include' command and `+=' support for macro assignment
1526 * Dependency tracking no long susceptible to deleted header file problem
1527 * Maintainer mode now a conditional. @MAINT@ is now an anachronism.
1532 * Better Cygwin32 support
1533 * Support for suffix rules with _SOURCES variables
1534 * New options `readme-alpha' and `check-news'; Gnits mode sets these
1535 * @LEXLIB@ no longer required when lex source seen
1536 Lex support in `missing', and new lex macro. Update your missing script.
1537 * Built-in support for assembly
1538 * aclocal gives error if `AM_' macro not found
1539 * Passed YFLAGS, not YACCFLAGS, to yacc
1540 * AM_PROG_CC_STDC does not have to come before AC_PROG_CPP
1541 * Dependencies computed as a side effect of compilation
1542 * Preliminary support for Java
1543 * DESTDIR support at "make install" time
1544 * Improved ansi2knr support; you must use the latest ansi2knr.c (included)
1548 * Better DejaGnu support
1549 * Added no-installinfo option
1550 * Added Emacs Lisp support
1551 * Added --no-force option
1552 * Included `aclocal' program
1553 * Automake will now generate rules to regenerate aclocal.m4, if appropriate
1554 * Now uses `AM_' macro names everywhere
1555 * ansi2knr option can have directory prefix (eg `../lib/ansi2knr')
1556 ansi2knr now works correctly on K&R sources
1557 * Better C++, yacc, lex support
1558 * Will compute _DEPENDENCIES variables automatically if not supplied
1559 * Will interpolate $(...) and ${...} when examining contents of a variable
1560 * .deps files now in build directory, not source directory; dependency
1561 handling generally rewritten
1562 * DATA, MANS and BUILT_SOURCES no longer included in distribution
1563 * can now put config.h into a subdir
1564 * Added dist-all target
1565 * Support for install-info program (see texinfo 3.9)
1566 * Support for "yacc -d"
1567 * configure substitutions are automatically discovered and included
1568 in generated Makefile.in
1569 * Special --cygnus mode
1570 * OMIT_DEPENDENCIES can now hold list of dependencies to be omitted
1571 when making distribution. Some dependencies are auto-ignored.
1572 * Changed how libraries are specified in _LIBRARIES variable
1573 * Full libtool support, from Gord Matzigkeit
1574 * No longer have to explicitly touch stamp-h when using AC_CONFIG_HEADER;
1575 AM_CONFIG_HEADER handles it automatically
1576 * Texinfo output files no longer need .info extension
1577 * Added `missing' support
1579 * Conditionals in Makefile.am, from Ian Taylor
1583 * distcheck target runs install and installcheck targets
1584 * Added preliminary support for DejaGnu.
1589 * More libtool fixes from Gord Matzigkeit; libtool support is still
1591 * Added support for jm_MAINTAINER_MODE
1593 * New "distcheck" target
1597 * mkinstalldirs and mdate-sh now appear in directory specified by
1599 * Removed DIST_SUBDIRS, DIST_OTHER
1600 * AC_ARG_PROGRAM only required when an actual program exists
1601 * dist-hook target now run before distribution packaged up; idea from
1602 Dieter Baron. Other hooks exist, too.
1603 * Preliminary (unfinished) support for libtool
1604 * Added short option names.
1605 * Better "dist" support when gluing together multiple packages
1609 * Documentation updates (many from François Pinard)
1610 * strictness `normal' now renamed to `foreign'
1611 * Renamed --install-missing to --add-missing
1612 * Now handles AC_CONFIG_AUX_DIR
1613 * Now handles TESTS macro
1614 * DIST_OTHER renamed to EXTRA_DIST
1615 * DIST_SUBDIRS is deprecated
1616 * @ALLOCA@ and @LIBOBJS@ now work in _LDADD variables
1617 * Better error messages in many cases
1618 * Program names are canonicalized
1619 * Added "check" prefix; from Gord Matzigkeit
1623 * configure.in scanner knows about AC_PATH_XTRA, AC_OUTPUT ":" syntax
1624 * Beginnings of a test suite
1625 * Automatically adds -I options for $(srcdir), ".", and path to config.h
1626 * Doesn't print anything when running
1627 * Beginnings of MAINT_CHARSET support
1628 * Can specify version in AUTOMAKE_OPTIONS
1629 * Most errors recognizable by Emacs' M-x next-error
1630 * Added --verbose option
1631 * All "primary" variables now obsolete; use EXTRA_PRIMARY to supply
1632 configure-generated names
1633 * Required macros now distributed in aclocal.m4
1635 * --strictness=gnu is default
1639 * More sophisticated configure.in scanning; now understands ALLOCA and
1640 LIBOBJS directly, handles AC_CONFIG_HEADER more precisely, etc.
1641 * TEXINFOS and MANS now obsolete; use info_TEXINFOS and man_MANS instead.
1642 * CONFIG_HEADER variable now obsolete
1643 * Can handle multiple Texinfo sources
1644 * Allow hierarchies deeper than 2. From Gord Matzigkeit.
1645 * HEADERS variable no longer needed; now can put .h files directly into
1646 foo_SOURCES variable.
1647 * Automake automatically rebuilds files listed in AC_OUTPUT. The
1648 corresponding ".in" files are included in the distribution.
1651 * Added --gnu and --gnits options
1652 * More standards checking
1654 * Cleaned up 'dist' targets
1655 * Added AUTOMAKE_OPTIONS variable and several options
1656 * Now scans configure.in to get some information (preliminary)
1659 * Works with Perl 4 again
1662 * Added --install-missing option.
1663 * Pretty-prints generated macros and rules
1664 * Comments in Makefile.am are placed more intelligently in Makefile.in
1665 * Generates .PHONY target
1666 * Rule or macro in Makefile.am now overrides contents of Automake file
1667 * Substantial cleanups from François Pinard
1671 * Works with Perl 4 again.
1674 * New uniform naming scheme.
1675 * --strictness option
1677 * '.c' files corresponding to '.y' or '.l' files are automatically
1679 * Many bug fixes and cleanups
1682 * Allow objects to be conditionally included in libraries via lib_LIBADD.
1685 * Bug fixes in 'clean' code.
1686 * Now generates 'installdirs' target.
1687 * man page installation reworked.
1688 * 'make dist' no longer re-creates all Makefile.in's.
1691 * Reimplemented in Perl
1692 * Added --amdir option (for debugging)
1693 * Texinfo support cleaned up.
1694 * Automatic de-ANSI-fication cleaned up.
1695 * Cleaned up 'clean' targets.
1698 * Automatic dependency tracking
1699 * More documentation
1700 * New variables DATA and PACKAGEDATA
1701 * SCRIPTS installed using $(INSTALL_SCRIPT)
1702 * No longer uses double-colon rules
1704 * Changes in advance of internationalization
1708 Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
1709 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
1712 This program is free software; you can redistribute it and/or modify
1713 it under the terms of the GNU General Public License as published by
1714 the Free Software Foundation; either version 2, or (at your option)
1717 This program is distributed in the hope that it will be useful,
1718 but WITHOUT ANY WARRANTY; without even the implied warranty of
1719 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1720 GNU General Public License for more details.
1722 You should have received a copy of the GNU General Public License
1723 along with this program. If not, see <http://www.gnu.org/licenses/>.