3 * Version requirements:
5 - Autoconf 2.65 or greater is required.
7 - The rules to build PDF and DVI output from Texinfo input now
8 requires Texinfo 4.9 or later.
10 - Support for the "Cygnus-style" trees (once enabled by the 'cygnus'
11 option) has been removed. See discussion about automake bug#11034
14 - The automake-provided '@mkdir_p@' configure substitution and
15 AM_PROG_MKDIR m4 macro have been removed. They had been obsolete
16 since automake 1.10, and actively deprecated since Automake 1.12.1.
17 However, to maintain a degree of backward-compatibility, the make
18 variable '$(mkdir_p)' is still defined (now simple as an alias to
19 '$(MKDIR_P)'). It will probably be removed in future major versions
20 of Automake (probably 1.14).
22 - The deprecated aclocal option '--acdir' has been removed. You
23 should use the options '--automake-acdir' and '--system-acdir'
24 instead (which have been introduced in Automake 1.11.2).
26 - The following long-obsolete m4 macros have been removed:
28 AM_PROG_CC_STDC: superseded by AC_PROG_CC since October 2002
29 fp_PROG_CC_STDC: broken alias for AM_PROG_CC_STDC
30 fp_WITH_DMALLOC: old alias for AM_WITH_DMALLOC
31 AM_CONFIG_HEADER: superseded by AC_CONFIG_HEADERS since July 2002
32 ud_PATH_LISPDIR: old alias for AM_PATH_LISPDIR
33 jm_MAINTAINER_MODE: old alias for AM_MAINTAINER_MODE
34 ud_GNU_GETTEXT: old alias for AM_GNU_GETTEXT
35 gm_PROG_LIBTOOL: old alias for AC_PROG_LIBTOOL
36 fp_C_PROTOTYPES: old alias for AM_C_PROTOTYPES (which was part
37 of the now-removed automatic de-ANSI-fication
40 - All the "old alias" macros in 'm4/obsolete.m4' have been removed.
42 * Obsolescent features:
44 - Use of the long-deprecated two- and three-arguments invocation forms
45 of the AM_INIT_AUTOMAKE is no longer documented. It's still supported
46 though (albeit with a warning in the 'obsolete' category), to cater
47 for people who want to define the version number for their package
48 dynamically (e.g., from the current VCS revision). We'll have to
49 continue this support until Autoconf itself is fixed to allow better
50 support for such dynamic version numbers.
52 * Elisp byte-compilation:
54 - The byte compilation of '.el' files into '.elc' files is now done
55 with a suffix rule. This has simplified the compilation process, and
56 more importantly made it less brittle. The downside is that emacs is
57 now invoked once for each '.el' files, which cause some noticeable
58 slowdowns. These should however be mitigated on multicore machines
59 (which are becoming the norm today) if concurrent make ("make -j")
62 - Elisp files placed in a subdirectory are now byte-compiled to '.elc'
63 files in the same subdirectory; for example, byte-compiling of file
64 'sub/foo.el' file will result in 'sub/foo.elc' rather than in
65 'foo.elc'. This behaviour is backward-incompatible with older
66 Automake versions, but it is more natural and more sane. See also
69 - The Emacs invocation performing byte-compilation of '.el' files honors
70 the $(AM_ELCFLAGS) and $(ELCFLAGS) variables; as typical, the former
71 one is developer-reserved and the latter one user-reserved.
73 - The 'elisp-comp' script, once provided by Automake, has been rendered
74 obsoleted by the just-described changes, and thus removed.
76 * Changes to Automake-generated testsuite harnesses:
78 - The parallel testsuite harness (previously only enabled by the
79 'parallel-tests' option) is the default one; the older serial
80 testsuite harness will still be available through the use of the
81 'serial-tests' option (introduced in Automake 1.12).
83 - The 'color-tests' option is now unconditionally activated by default.
84 In particular, this means that testsuite output is now colorized by
85 default if the attached terminal seems to support ANSI escapes, and
86 that the user can force output colorization by setting the variable
87 AM_COLOR_TESTS to "always". The 'color-tests' is still recognized
88 for backward-compatibility, although it's a handled as a no-op now.
90 * Silent rules support:
92 - Support for silent rules is now always active in Automake-generated
93 Makefiles. So, although the verbose output is still the default,
94 the user can now always use "./configure --enable-silent-rules" or
95 "make V=0" to enable quieter output in the package he's building.
97 - The 'silent-rules' option has now become a no-op, preserved for
98 backward-compatibility only. In particular, its use no longer
99 disables the warnings in the 'portability-recursive' category.
103 - The rules to build PDF and DVI files from Texinfo input now use the
104 '--build-dir' option, to keep the auxiliary files used by texi2dvi
105 and texi2pdf around without cluttering the build directory, and to
106 make it possible to run the "dvi" and "pdf" recipes in parallel.
108 * Automatic remake rules and 'missing' script:
110 - The 'missing' script no longer tries to update the timestamp of
111 out-of-date files that require a maintainer-specific tool to be
112 remade, in case the user lacks such a tool (or has a too-old version
113 of it). It just give a useful warning, and in some cases also a tip
114 about how to obtain such a tool.
116 - The missing script has thus become useless as a (poor) way to work
117 around the sketched-timestamps issues that can happen for projects
118 that keep generated files committed in their VCS repository. Such
119 projects are now encouraged to write a custom "fix-timestamps.sh"
120 script to avoid such issues; a simple example is provided in the
121 "CVS and generated files" chapter of the automake manual.
125 - The user can now define his own recursive targets that recurse
126 in the directories specified in $(SUBDIRS). This can be done by
127 specifying the name of such targets in invocations of the new
128 'AM_EXTRA_RECURSIVE_TARGETS' m4 macro.
132 - Any failure in the recipe of the "tags", "ctags", "cscope" or
133 "cscopelist" targets in a subdirectory is now propagated to the
134 top-level make invocation.
136 - Tags are correctly computed also for files in _SOURCES variables that
137 only list files with non-standard suffixes (see automake bug#12372).
139 * Improvements to aclocal and related rebuilds rules:
141 - Autoconf-provided macros AC_CONFIG_MACRO_DIR and AC_CONFIG_MACRO_DIRS
142 (the latter of which will only be present since Autoconf 2.70) are
143 now traced by aclocal, and can be used to declare the local m4 include
144 directories. Formerly, one had to specify it with an explicit '-I'
145 option to the 'aclocal' invocation.
147 - The special make variable ACLOCAL_AMFLAGS is deprecated; future
148 Automake versions will warn about its use, and later version will
149 remove support for it altogether.
151 * The depcomp script:
153 - Dropped support for libtool 1.4.
155 - Various internal refactorings. They should cause no visible change,
156 but the chance for regression is there anyway, so please report any
157 unexpected or suspicious behaviour.
159 - Support for pre-8.0 versions of the Intel C Compiler has been dropped.
160 This should cause no problem, since icc 8.0 has been released in
161 December 2003 -- almost nine years ago.
163 - Support for tcc (the Tiny C Compiler) has been improved, and is now
164 handled through a dedicated 'tcc' mode.
166 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
170 * WARNING: Future backward-incompatibilities!
172 - Future versions of Automake will likely drop support for the
173 long-deprecated 'configure.in' name for the Autoconf input file.
174 You are advised to use the recommended name 'configure.ac' instead.
176 - Support for the "Cygnus-style" trees (as enabled by the 'cygnus'
177 option) will be removed in the next major Automake release (1.13).
179 - The long-obsolete (since automake 1.10) AM_PROG_MKDIR m4 macro will
180 be removed in Automake 1.14. The $(mkdir_p) make variable and the
181 @mkdir_p@ substitution will still remain available (as aliases of
182 $(MKDIR_P)) for the moment, for better backward compatibility.
184 - Autoconf 2.65 or later will be required by the next major Automake
185 version (1.13). Until now, Automake has required Autoconf version
188 - Starting from the next major Automake version (1.13), the rules
189 to build pdf, ps and dvi output from Texinfo input will use the
190 '--build-dir' option by default. Since such an option was only
191 introduced in Texinfo 4.9, this means that Makefiles generated by
192 future Automake versions will require at least that version of
195 - Starting from the next major Automake version (1.13), the parallel
196 testsuite harness (previously only enabled by the 'parallel-tests'
197 option) will become the default one; the older serial testsuite
198 harness will still be available through the use of the 'serial-tests'
201 - The following long-obsolete m4 macros will be removed in the
202 next major Automake version (1.13):
204 AM_PROG_CC_STDC: superseded by AC_PROG_CC since October 2002
205 fp_PROG_CC_STDC: broken alias for AM_PROG_CC_STDC
206 fp_WITH_DMALLOC: old alias for AM_WITH_DMALLOC
207 AM_CONFIG_HEADER: superseded by AC_CONFIG_HEADERS since July 2002
208 ud_PATH_LISPDIR: old alias for AM_PATH_LISPDIR
209 jm_MAINTAINER_MODE: old alias for AM_MAINTAINER_MODE
210 ud_GNU_GETTEXT: old alias for AM_GNU_GETTEXT
211 gm_PROG_LIBTOOL: old alias for AC_PROG_LIBTOOL
212 fp_C_PROTOTYPES: old alias for AM_C_PROTOTYPES (which was part
213 of the now-removed automatic de-ANSI-fication
216 - All the "old alias" macros in 'm4/obsolete.m4' will be removed in
217 the next major Automake version (1.13).
219 - The '--acdir' option of aclocal is deprecated, and will probably
220 be removed in the next major Automake release (1.13). You should
221 use the options '--automake-acdir' and '--system-acdir' instead
222 (which have been introduced in Automake 1.11.2).
224 - The 'missing' script will no longer try to update the timestamp
225 of out-of-date files that require a maintainer-specific tool to be
226 remade, in case the user lacks such a tool (or has a too-old version
227 of it). In fact, starting from Automake 1.13, all it'll do will be
228 giving more useful warnings than a bare "command not found" from a
231 Bugs fixed in 1.12.6:
233 * Python-related bugs:
235 - The default installation location for python modules has been improved
236 for Python 3 on Debian and Ubuntu systems, changing from:
238 ${prefix}/lib/python3/dist-packages
242 ${prefix}/lib/python3.x/site-packages
244 This change should ensure modules installed using the default ${prefix}
245 "/usr/local" are found by default by system python 3.x installations.
246 See automake bug#10227.
248 - Python byte-compilation supports the new layout mandated by PEP-3147,
249 with its __pycache__ directory (automake bug#8847).
251 * Build system issues:
253 - The maintainer rebuild rules for Makefiles and aclocal.m4 in
254 Automake's own build system works correctly again (bug introduced
259 - The Vala-related tests has been changed to adjust to the removal of
260 the 'posix' profile in the valac compiler. See automake bug#12934
263 - Some spurious testsuite failures related to older tools and systems
266 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
272 - The AM_PROG_VALAC macro has been enhanced to takes two further
273 optional arguments; it's signature now being
275 AM_PROG_VALAC([MINIMUM-VERSION], [ACTION-IF-FOUND],
276 [ACTION-IF-NOT-FOUND])
278 - By default, AM_PROG_VALAC no longer aborts the configure invocation
279 if the Vala compiler found is too old, but simply prints a warning
280 messages (as it did when the Vala compiler was not found). This
281 should avoid unnecessary difficulties for end users that just want
282 to compile the unmodified, distributed Vala-generated C sources,
283 but happens to have an old Vala compiler in their PATH. This fixes
286 - If no proper Vala compiler is found at configure runtime, AM_PROG_VALAC
287 will set the AC_SUBST'd variable 'VALAC' to 'valac' rather than to ':'.
288 This is a better default, because with it a triggered makefile rule
289 invoking a Vala compilation will clearly fail with an informative error
290 message like "valac: command not found", rather than silently, with
291 the error possibly going unnoticed or triggering harder-to-diagnose
292 fallout failures in later steps.
294 * Miscellaneous changes:
296 - automake and aclocal no longer honours the 'perllibdir' environment
297 variable. That had always been intended only as an hack required in
298 the testsuite, not meant for any use beyond that.
300 Bugs fixed in 1.12.5:
302 * Long-standing bugs:
304 - Automake no longer generates spurious remake rules invoking autoheader
305 to regenerate the template corresponding to header files specified after
306 the first one in AC_CONFIG_HEADERS (automake bug#12495).
308 - When wrapping Microsoft tools, the 'compile' script falls back to
309 finding classic 'libname.a' style libraries when 'name.lib' and
310 'name.dll.lib' aren't available.
312 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
316 * Warnings and deprecations:
318 - Warnings in the 'obsolete' category are enabled by default both in
319 automake and aclocal.
321 * Miscellaneous changes:
323 - Some testsuite weaknesses and spurious failures have been fixed.
325 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
329 * Miscellaneous changes:
331 - The '.m4' files provided by Automake no longer define serial numbers.
332 This should cause no difference in the behaviour of aclocal though.
334 - Some testsuite weaknesses and spurious failures have been fixed.
336 - There is initial support for automatic dependency tracking with the
337 Portland Group C/C++ compilers, thanks to the new new depmode 'pgcc'.
339 Bugs fixed in 1.12.3:
341 * Long-standing bugs:
343 - Instead of renaming only self-references of files (typically for
344 #lines), ylwrap now also renames references to the other generated
345 files. This fixes support for GLR and C++ parsers from Bison (PR
346 automake/491 and automake bug#7648): 'parser.c' now properly
347 #includes 'parser.h' instead of 'y.tab.h'.
349 - Generated files unknown to ylwrap are now preserved. This fixes
350 C++ support for Bison (automake bug#7648): location.hh and the
351 like are no longer discarded.
353 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
357 * Warnings and deprecations:
359 - Automake now issues a warning (in the 'portability' category) if
360 'configure.in' is used instead of 'configure.ac' as the Autoconf
361 input file. Such a warning will also be present in the next
362 Autoconf version (2.70).
366 - Recursive cleaning rules descends into the $(SUBDIRS) in the natural
367 order (as done by the other recursive rules), rather than in the
368 inverse order. They used to do that in order to work a round a
369 limitation in an older implementation of the automatic dependency
370 tracking support, but that limitation had been lifted years ago
371 already, when the automatic dependency tracking based on side-effects
372 of compilation had been introduced.
374 - Cleaning rules for compiled objects (both "plain" and libtool) work
375 better when subdir objects are involved, not triggering a distinct
376 'rm' invocation for each such object. They do so by removing *any*
377 compiled object file that is in the same directory of a subdir
378 object. See automake bug#10697.
380 * Silent rules support:
382 - A new predefined $(AM_V_P) make variable is provided; it expands
383 to a shell conditional that can be used in recipes to know whether
384 make is being run in silent or verbose mode.
386 Bugs fixed in 1.12.2:
388 * SECURITY VULNERABILITIES!
390 - The 'distcheck' recipe no longer grants temporary world-write
391 permissions on the extracted distdir. Even if such rights were
392 only granted for a vanishingly small time window, the implied
393 race condition proved to be enough to allow a local attacker
394 to run arbitrary code with the privileges of the user running
395 "make distcheck". This is CVE-2012-3386.
397 * Long-standing bugs:
399 - The "recheck" targets behaves better in the face of build failures
400 related to previously failed tests. For example, if a test is a
401 compiled program that must be rerun by "make recheck", and its
402 compilation fails, it will still be rerun by further "make recheck"
403 invocations. See automake bug#11791.
405 * Bugs introduced by 1.12.1:
407 - Automake provides once again the '$(mkdir_p)' make variable and the
408 '@mkdir_p@' substitution (both as simple aliases for '$(MKDIR_P)'),
409 for better backward-compatibility.
411 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
415 * New supported languages:
417 - Support for Objective C++ has been added; it should work similarly to
418 the support for Objective C.
420 * Deprecated obsolescent features:
422 - Use of the long-deprecated two- and three-arguments invocation forms
423 of the AM_INIT_AUTOMAKE macro now elicits a warning in the 'obsolete'
424 category. Starting from some future major Automake release (likely
425 post-1.13), such usages will no longer be allowed.
427 - Support for the "Cygnus-style" trees (enabled by the 'cygnus' option) is
428 now deprecated (its use triggers a warning in the 'obsolete' category).
429 It will be removed in the next major Automake release (1.13).
431 - The long-obsolete (since 1.10) automake-provided $(mkdir_p) make
432 variable, @mkdir_p@ configure-time substitution and AM_PROG_MKDIR
433 m4 macro are deprecated, eliciting a warning in the 'obsolete'
436 * Miscellaneous changes:
438 - The Automake test cases now require a proper POSIX-conforming shell.
439 Older non-POSIX Bourne shells (like Solaris 10 /bin/sh) will no longer
440 be accepted. In most cases, the user shouldn't have to specify such
441 POSIX shell explicitly, since it will be looked up at configure time.
442 Still, when this lookup fails, or when the user wants to override its
443 conclusion, the variable 'AM_TEST_RUNNER_SHELL' can be used (pointing
444 to the shell that will be used to run the Automake test cases).
446 Bugs fixed in 1.12.1:
448 * Bugs introduced by 1.12:
450 - Several weaknesses in Automake's own build system and test suite
453 * Bugs introduced by 1.11.3:
455 - When given non-option arguments, aclocal rejects them, instead of
456 silently ignoring them.
458 * Long-standing bugs:
460 - When the 'color-tests' option is in use, forcing of colored testsuite
461 output through "AM_COLOR_TESTS=always" works even if the terminal is
462 a non-ANSI one, i.e., if the TERM environment variable has a value of
465 - Several inefficiencies and poor performances in the implementation
466 of the parallel-tests 'check' and 'recheck' targets have been fixed.
468 - The post-processing of output "#line" directives done the ylwrap
469 script is more faithful w.r.t. files in a subdirectory; for example,
470 if the processed file is "src/grammar.y", ylwrap will correctly
471 produce directives like:
472 #line 7 "src/grammar.y"
477 * Bugs with new Perl versions:
479 - Aclocal works correctly with perl 5.16.0 (automake bug#11543).
481 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
485 * Obsolete features removed:
487 - The never documented nor truly used script 'acinstall' has been
490 - Support for automatic de-ANSI-fication has been removed.
492 - The support for the "obscure" multilib feature has been removed
493 from Automake core (but remains available in the 'contrib/'
494 directory of the Automake distribution).
496 - Support for ".log -> .html" conversion and the check-html and
497 recheck-html targets has been removed from Automake core (but
498 remains available in the 'contrib/' directory of the Automake
501 - The deprecated 'lzma' compression format for distribution archives
502 has been removed, in favor of 'xz' and 'lzip'.
504 - The obsolete AM_WITH_REGEX macro has been removed.
506 - The long-deprecated options '--output-dir', '--Werror' and
507 '--Wno-error' have been removed.
509 - The chapter on the history of Automake has been moved out of the
510 reference manual, into a new dedicated Texinfo file.
514 - New 'cscope' target to build a cscope database for the source tree.
516 * Changes to Automake-generated testsuite harnesses:
518 - The new automake option 'serial-tests' has been introduced. It can
519 be used to explicitly instruct automake to use the older serial
520 testsuite harness. This is still the default at the moment, but it
521 might change in future versions.
523 - The 'recheck' target (provided by the parallel testsuite harness) now
524 depends on the 'all' target. This allows for a better user-experience
525 in test-driven development. See automake bug#11252.
527 - Test scripts that exit with status 99 to signal an "hard error" (e.g.,
528 and unexpected or internal error, or a failure to set up the test case
529 scenario) have their outcome reported as an 'ERROR' now. Previous
530 versions of automake reported such an outcome as a 'FAIL' (the only
531 difference with normal failures being that hard errors were counted
532 as failures even when the test originating them was listed in
535 - The testsuite summary displayed by the parallel-test harness has a
536 completely new format, that always list the numbers of passed, failed,
537 xfailed, xpassed, skipped and errored tests, even when these numbers
538 are zero (but using smart coloring when the color-tests option is in
541 - The default testsuite driver offered by the 'parallel-tests' option is
542 now implemented (partly at least) with the help of automake-provided
543 auxiliary scripts (e.g., 'test-driver'), instead of relying entirely
544 on code in the generated Makefile.in.
545 This has two noteworthy implications. The first one is that projects
546 using the 'parallel-tests' option should now either run automake with
547 the '--add-missing' option, or manually copy the 'test-driver' script
548 into their tree. The second, and more important, implication is that
549 now, when the 'parallel-tests' option is in use, TESTS_ENVIRONMENT can
550 no longer be used to define a test runner, and the command specified
551 in LOG_COMPILER (and <ext>_LOG_COMPILER) must be a *real* executable
552 program or script. For example, this is still a valid usage (albeit
555 TESTS_ENVIRONMENT = \
556 if test -n '$(STRICT_TESTS)'; then \
557 maybe_errexit='-e'; \
561 LOG_COMPILER = $(SHELL) $$maybe_errexit
563 OTOH, this is no longer a valid usage:
565 TESTS_ENVIRONMENT = \
566 $(SHELL) `test -n '$(STRICT_TESTS_CHECKING)' && echo ' -e'`
570 TESTS_ENVIRONMENT = \
571 run_with_perl_or_shell () \
573 if grep -q '^#!.*perl' $$1; then
579 LOG_COMPILER = run_with_perl_or_shell
581 - The package authors can now use customary testsuite drivers within
582 the framework provided by the 'parallel-tests' testsuite harness.
583 Consistently with the existing syntax, this can be done by defining
584 special makefile variables 'LOG_DRIVER' and '<ext>_LOG_DRIVER'.
586 - A new developer-reserved variable 'AM_TESTS_FD_REDIRECT' can be used
587 to redirect/define file descriptors used by the test scripts.
589 - The parallel-tests harness generates now, in addition the '.log' files
590 holding the output produced by the test scripts, a new set of '.trs'
591 files, holding "metadata" derived by the execution of the test scripts;
592 among such metadata are the outcomes of the test cases run by a script.
594 - Initial and still experimental support for the TAP test protocol is
597 * Changes to Yacc and Lex support:
599 - C source and header files derived from non-distributed Yacc and/or
600 Lex sources are now removed by a simple "make clean" (while they were
601 previously removed only by "make maintainer-clean").
603 - Slightly backward-incompatible change, relevant only for use of Yacc
604 with C++: the extensions of the header files produced by the Yacc
605 rules are now modelled after the extension of the corresponding
606 sources. For example, yacc files named "foo.y++" and "bar.yy" will
607 produce header files named "foo.h++" and "bar.hh" respectively, where
608 they would have previously produced header files named simply "foo.h"
609 and "bar.h". This change offers better compatibility with 'bison -o'.
611 * Miscellaneous changes:
613 - The AM_PROG_VALAC macro now causes configure to exit with status 77,
614 rather than 1, if the vala compiler found is too old.
616 - The build system of Automake itself now avoids the use of make
617 recursion as much as possible.
619 - Automake now prefers to quote 'like this' or "like this", rather
620 than `like this', in diagnostic message and generated Makefiles,
621 to accommodate the new GNU Coding Standards recommendations.
623 - Automake has a new option '--print-libdir' that prints the path of the
624 directory containing the Automake-provided scripts and data files.
626 - The 'dist' and 'dist-all' targets now can run compressors in parallel.
628 - The rules to create pdf, dvi and ps output from Texinfo files now
629 works better with modern 'texi2dvi' script, by explicitly passing
630 it the '--clean' option to ensure stray auxiliary files are not
631 left to clutter the build directory.
633 - Automake can now generate silenced rules for texinfo outputs.
635 - Some auxiliary files that are automatically distributed by Automake
636 (e.g., 'install-sh', or the 'depcomp' script for packages compiling
637 C sources) might now be listed in the DIST_COMMON variable in many
638 Makefile.in files, rather than in the top-level one.
640 - Messages of types warning or error from 'automake' and 'aclocal'
641 are now prefixed with the respective type, and presence of -Werror
644 - Automake's early configure-time sanity check now tries to avoid
645 sleeping for a second, which slowed down cached configure runs
646 noticeably. In that case, it will check back at the end of the
647 configure script to ensure that at least one second has passed, to
648 avoid time stamp issues with makefile rules rerunning autotools
651 - The warnings in the category 'extra-portability' are now enabled by
652 '-Wall'. In previous versions, one has to use '-Wextra-portability'
657 - Various minor bugfixes for recent or long-standing bugs.
659 * Bugs introduced by 1.11:
661 - The AM_COND_IF macro also works if the shell expression for the
662 conditional is no longer valid for the condition.
664 - The automake-provided parallel testsuite harness no longer fails
665 with BSD make used in parallel mode when there are test scripts in
666 a subdirectory, like in:
668 TESTS = sub/foo.test sub/bar.test
670 * Long-standing bugs:
672 - Automake's own build system finally have a real "installcheck" target.
674 - Vala-related cleanup rules are now more complete, and work better in
677 - Files listed with the AC_REQUIRE_AUX_FILE macro in configure.ac are
678 now automatically distributed also if the directory of the auxiliary
679 files coincides with the top-level directory.
681 - Automake now detects the presence of the '-d' flag in the various
682 '*YFLAGS' variables even when their definitions involve indirections
683 through other variables, such as in:
685 AM_YFLAGS = $(foo_opts)
687 - Automake now complains if a '*YFLAGS' variable has any conditional
688 content, not only a conditional definition.
690 - Explicit enabling and/or disabling of Automake warning categories
691 through the '-W...' options now always takes precedence over the
692 implicit warning level implied by Automake strictness (foreign, gnu
693 or gnits), regardless of the order in which such strictness and
694 warning flags appear. For example, a setting like:
695 AUTOMAKE_OPTIONS = -Wall --foreign
696 will cause the warnings in category 'portability' to be enabled, even
697 if those warnings are by default disabled in 'foreign' strictness.
699 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
701 Bugs fixed in 1.11.5:
703 * Bugs introduced by 1.11.3:
705 - Vala files with '.vapi' extension are now recognized and handled
706 correctly again. See automake bug#11222.
708 - Vala support work again for projects that contain some program
709 built from '.vala' (and possibly '.c') sources and some other
710 program built from '.c' sources *only*. See automake bug#11229.
712 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
716 * Miscellaneous changes:
718 - The 'ar-lib' script now ignores the "s" (symbol index) and "S" (no
719 symbol index) modifiers as well as the "s" action, as the symbol index
720 is created unconditionally by Microsoft lib. Also, the "q" (quick)
721 action is now a synonym for "r" (replace). Also, the script has been
722 ignoring the "v" (verbose) modifier already since Automake 1.11.3.
724 - When the 'compile' script is used to wrap MSVC, it now accepts an
725 optional space between the -I, -L and -l options and their respective
726 arguments, for better POSIX compliance.
728 - There is an initial, experimental support for automatic dependency
729 tracking with tcc (the Tiny C Compiler). Its associated depmode is
730 currently recognized as "icc" (but this and other details are likely
731 to change in future versions).
733 - Automatic dependency tracking now works also with the IBM XL C/C++
734 compilers, thanks to the new new depmode 'xlc'.
736 Bugs fixed in 1.11.4:
738 * Bugs introduced by 1.11.2:
740 - A definition of 'noinst_PYTHON' before 'python_PYTHON' (or similar)
741 no longer cause spurious failures upon "make install".
743 - The user can now instruct the 'uninstall-info' rule not to update
744 the '${infodir}/dir' file by exporting the environment variable
745 'AM_UPDATE_INFO_DIR' to the value "no". This is done for consistency
746 with how the 'install-info' rule operates since automake 1.11.2.
748 * Long-standing bugs:
750 - It is now possible for a foo_SOURCES variable to hold Vala sources
751 together with C header files, as well as with sources and headers for
752 other supported languages (e.g., C++). Previously, only mixing C and
753 Vala sources was supported.
755 - If "aclocal --install" is used, and the first directory specified with
756 '-I' is non-existent, aclocal will now create it before trying to copy
759 - An empty declaration of a "foo_PRIMARY" no longer cause the generated
760 install rules to create an empty $(foodir) directory; for example, if
761 Makefile.am contains something like:
765 pkglibexec_SCRIPTS += bar.sh
768 the $(pkglibexec) directory will not be created upon "make install".
770 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
774 * Miscellaneous changes:
776 - Automake's own build system is more silent by default, making use of
777 the 'silent-rules' option.
779 - The master copy of the 'gnupload' script is now maintained in gnulib,
782 - The 'missing' script no longer tries to wrap calls to 'tar'.
784 - "make dist" no longer wraps 'tar' invocations with the 'missing'
785 script. Similarly, the obsolescent variable '$(AMTAR)' (which you
786 shouldn't be using BTW ;-) no longer invokes the 'missing' script
787 to wrap tar, but simply invokes the 'tar' program itself.
789 - "make dist" can now create lzip-compressed tarballs.
791 - In the Automake info documentation, the Top node and the nodes about
792 the invocation of the automake and aclocal programs have been renamed;
793 now, calling "info automake" will open the Top node, while calling
794 "info automake-invocation" and "info aclocal-invocation" will access
795 the nodes about the invocation of respectively automake and aclocal.
797 - Automake is now distributed as a gzip-compressed and an xz-compressed
798 tarball. Previously, bzip2 was used instead of xz.
800 - The last relics of Python 1.5 support have been removed from the
801 AM_PATH_PYTHON macro.
803 - For programs and libraries, automake now detects EXTRA_foo_DEPENDENCIES
804 and adds them to the normal list of dependencies, but without
805 overwriting the foo_DEPENDENCIES variable, which is normally computed
808 Bugs fixed in 1.11.3:
810 * Bugs introduced by 1.11.2:
812 - Automake now correctly recognizes the prefix/primary combination
813 'pkglibexec_SCRIPTS' as valid.
815 - The parallel-tests harness no longer trips on sed implementations
816 with stricter limits on the length of input lines (problem seen at
819 * Long-standing bugs:
821 - The "deleted header file problem" for *.am files is avoided by stub
822 rules. This allows 'make' to trigger a rerun of 'automake' also if
823 some previously needed '.am' file has been removed.
825 - The 'silent-rules' option now generates working makefiles even
826 for the uncommon 'make' implementations that do not support the
827 nested-variables extension to POSIX 2008. For such 'make'
828 implementations, whether a build is silent is determined at
829 configure time, and cannot be overridden at make time with
830 "make V=0" or "make V=1".
832 - Vala support now works better in VPATH setups.
834 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
838 * Changes to aclocal:
840 - The `--acdir' option is deprecated. Now you should use the new options
841 `--automake-acdir' and `--system-acdir' instead.
843 - The `ACLOCAL_PATH' environment variable is now interpreted as a
844 colon-separated list of additional directories to search after the
845 automake internal acdir (by default ${prefix}/share/aclocal-APIVERSION)
846 and before the system acdir (by default ${prefix}/share/aclocal).
848 * Miscellaneous changes:
850 - The Automake support for automatic de-ANSI-fication has been
851 deprecated. It will probably be removed in the next major Automake
854 - The `lzma' compression scheme and associated automake option `dist-lzma'
855 is obsoleted by `xz' and `dist-xz' due to upstream changes.
857 - You may adjust the compression options used in dist-xz and dist-bzip2.
858 The default is now merely -e for xz, but still -9 for bzip; you may
859 specify a different level via the XZ_OPT and BZIP2 envvars respectively.
860 E.g., "make dist-xz XZ_OPT=-7" or "make dist-bzip2 BZIP2=-5"
862 - The `compile' script now converts some options for MSVC for a better
863 user experience. Similarly, the new `ar-lib' script wraps Microsoft lib.
865 - The py-compile script now accepts empty arguments passed to the options
866 `--destdir' and `--basedir', and complains about unrecognized options.
867 Moreover, a non-option argument or a special `--' argument terminates
870 - A developer that needs to pass specific flags to configure at "make
871 distcheck" time can now, and indeed is advised to, do so by defining
872 the developer-reserved makefile variable AM_DISTCHECK_CONFIGURE_FLAGS,
873 instead of the old DISTCHECK_CONFIGURE_FLAGS.
874 The DISTCHECK_CONFIGURE_FLAGS variable should now be reserved for the
875 user; still, the old Makefile.am files that used to define it will
876 still continue to work as before.
878 - New macro AM_PROG_AR that looks for an archiver and wraps it in the new
879 'ar-lib' auxiliary script if the selected archiver is Microsoft lib.
880 This new macro is required for LIBRARIES and LTLIBRARIES when automake
881 is run with -Wextra-portability and -Werror.
883 - When using DejaGnu-based testsuites, the user can extend the `site.exp'
884 file generated by automake-provided rules by defining the special make
885 variable `$(EXTRA_DEJAGNU_SITE_CONFIG)'.
887 - The `install-info' rule can now be instructed not to create/update
888 the `${infodir}/dir' file, by exporting the new environment variable
889 `AM_UPDATE_INFO_DIR' to the value "no".
891 Bugs fixed in 1.11.2:
893 * Bugs introduced by 1.11:
895 - The parallel-tests driver no longer produces erroneous results with
896 Tru64/OSF 5.1 sh upon unreadable log files.
898 - The `parallel-tests' test driver does not report spurious successes
899 when used with concurrent FreeBSD make (e.g., "make check -j3").
901 - When the parallel-tests driver is in use, automake now explicitly
902 rejects invalid entries and conditional contents in TEST_EXTENSIONS,
903 instead of issuing confusing and apparently unrelated error messages
904 (e.g., "non-POSIX variable name", "bad characters in variable name",
905 or "redefinition of TEST_EXTENSIONS), or even, in some situations,
906 silently producing broken `Makefile.in' files.
908 - The `silent-rules' option now truly silences all compile rules, even
909 when dependency tracking is disabled. Also, when `silent-rules' is
910 not used, `make' output no longer contains spurious backslash-only
911 lines, thus once again matching what Automake did before 1.11.
913 - The AM_COND_IF macro also works if the shell expression for the
914 conditional is no longer valid for the condition.
916 * Long-standing bugs:
918 - The order of Yacc and Lex flags is fixed to be consistent with other
919 languages: $(AM_YFLAGS) comes before $(YFLAGS), and $(AM_LFLAGS) before
920 $(LFLAGS), so that the user variables override the developer variables.
922 - "make distcheck" now correctly complains also when "make uninstall"
923 leaves one and only one file installed in $(prefix).
925 - A "make uninstall" issued before a "make install", or after a mere
926 "make install-data" or a mere "make install-exec" does not spuriously
929 - Automake now warns about more primary/directory invalid combinations,
930 such as "doc_LIBRARIES" or "pkglib_PROGRAMS".
932 - Rules generated by Automake now try harder to not change any files when
933 `make -n' is invoked. Fixes include compilation of Emacs Lisp, Vala, or
934 Yacc source files and the rule to update config.h.
936 - Several scripts and the parallel-tests testsuite driver now exit with
937 the right exit status upon receiving a signal.
939 - A per-Makefile.am setting of -Werror does not erroneously carry over
940 to the handling of other Makefile.am files.
942 - The code for automatic dependency tracking works around a Solaris
943 make bug triggered by sources containing repeated slashes when the
944 `subdir-objects' option was used.
946 - The makedepend and hp depmodes now work better with VPATH builds.
948 - Java sources specified with check_JAVA are no longer compiled for
949 "make all", but only for "make check".
951 - An usage like "java_JAVA = foo.java" will now cause Automake to warn
952 and error out if `javadir' is undefined, instead of silently producing
953 a broken Makefile.in.
955 - aclocal and automake now honour the configure-time definitions of
956 AUTOCONF and AUTOM4TE when they spawn autoconf or autom4te processes.
958 - The `install-info' recipe no longer tries to guess whether the
959 `install-info' program is from Debian or from GNU, and adaptively
960 change its behaviour; this has proven to be frail and easy to
963 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
965 Bugs fixed in 1.11.1:
967 - Lots of minor bugfixes.
969 * Bugs introduced by 1.11:
971 - The `parallel-tests' test driver works around a GNU make 3.80 bug with
972 trailing white space in the test list (`TESTS = foo $(EMPTY)').
974 * Long standing bugs:
976 - On Darwin 9, `pythondir' and `pyexecdir' pointed below `/Library/Python'
977 even if the `--prefix' argument pointed outside of a system directory.
978 AM_PATH_PYTHON has been fixed to ignore the value returned from python's
979 `get_python_lib' function if it points outside the configured prefix,
980 unless the `--prefix' argument was either `/usr' or below `/System'.
982 - The testsuite does not try to change the mode of `ltmain.sh' files from
983 a Libtool installation (symlinked to test directories) any more.
985 - AM_PROG_GCJ uses AC_CHECK_TOOLS to look for `gcj' now, so that prefixed
986 tools are preferred in a cross-compile setup.
988 - The distribution is tarred up with mode 755 now by the `dist*' targets.
989 This fixes a race condition where untrusted users could modify files
990 in the $(PACKAGE)-$(VERSION) distdir before packing if the toplevel
991 build directory was world-searchable. This is CVE-2009-4029.
993 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
997 * Version requirements:
999 - Autoconf 2.62 or greater is required.
1001 * Changes to aclocal:
1003 - The autoconf version check implemented by aclocal in aclocal.m4
1004 (and new in Automake 1.10) is degraded to a warning. This helps
1005 in the common case where the Autoconf versions used are compatible.
1007 * Changes to automake:
1009 - The automake program can run multiple threads for creating most
1010 Makefile.in files concurrently, if at least Perl 5.7.2 is available
1011 with interpreter-based threads enabled. Set the environment variable
1012 AUTOMAKE_JOBS to the maximum number of threads to use, in order to
1013 enable this experimental feature.
1015 * Changes to Libtool support:
1017 - Libtool generic flags are now passed to the install and uninstall
1020 - distcheck works with Libtool 2.x even when LT_OUTPUT is used, as
1021 config.lt is removed correctly now.
1023 * Languages changes:
1025 - subdir-object mode works now with Fortran (F77, FC, preprocessed
1026 Fortran, and Ratfor).
1028 - For files with extension .f90, .f95, .f03, or .f08, the flag
1029 $(FCFLAGS_f[09]x) computed by AC_FC_SRCEXT is now used in compile rules.
1031 - Files with extension .sx are also treated as preprocessed assembler.
1033 - The default source file extension (.c) can be overridden with
1034 AM_DEFAULT_SOURCE_EXT now.
1036 - Python 3.0 is supported now, Python releases prior to 2.0 are no
1039 - AM_PATH_PYTHON honors python's idea about the site directory.
1041 - There is initial support for the Vala programming language, when using
1042 Vala 0.7.0 or later.
1044 * Miscellaneous changes:
1046 - Automake development is done in a git repository on Savannah now, see
1048 http://git.sv.gnu.org/gitweb/?p=automake.git
1050 A read-only CVS mirror is provided at
1052 cvs -d :pserver:anonymous@pserver.git.sv.gnu.org:/automake.git \
1053 checkout -d automake HEAD
1055 - "make dist" can now create xz-compressed tarballs,
1056 as well as (deprecated?) lzma-compressed tarballs.
1058 - `automake --add-missing' will by default install the GPLv3 file as
1059 COPYING if it is missing. It will also warn that the license file
1060 should be added to source control. Note that Automake will never
1061 overwrite an existing COPYING file, even when the `--force-missing'
1064 - The manual is now distributed under the terms of the GNU FDL 1.3.
1066 - Automake ships and installs man pages for automake and aclocal now.
1068 - New shorthand `$(pkglibexecdir)' for `$(libexecdir)/@PACKAGE@'.
1070 - install-sh supports -C, which does not update the installed file
1071 (and its time stamps) if the contents did not change.
1073 - The `gnupload' script has been revamped.
1075 - The `depcomp' and `compile' scripts now work with MSVC under MSYS.
1077 - The targets `install' and `uninstall' are more efficient now, in that
1078 for example multiple files from one Automake variable such as
1079 `bin_SCRIPTS' are copied in one `install' (or `libtool --mode=install')
1080 invocation if they do not have to be renamed.
1082 Both install and uninstall may sometimes enter (`cd' into) the target
1083 installation directory now, when no build-local scripts are used.
1085 Both install and uninstall do not fail anymore but do nothing if an
1086 installation directory variable like `bindir' is set to the empty string.
1088 For built-in rules, `make install' now fails reliably if installation
1089 of a file failed. Conversely, `make uninstall' even succeeds when
1090 issued multiple times.
1092 These changes may need some adjustments from users: For example,
1093 some `install' programs refuse to install multiple copies of the
1094 same file in one invocation, so you may need to remove duplicate
1095 entries from file lists.
1097 Also, within one set of files, say, nobase_data_DATA, the order of
1098 installation may be changed, or even unstable among different hosts,
1099 due to the use of associative arrays in awk. The increased use of
1100 awk matches a similar move in Autoconf to provide for better scaling.
1102 Further, most undocumented per-rule install command variables such as
1103 binSCRIPT_INSTALL have been removed because they are not needed any
1104 more. Packages which use them should be using the appropriate one of
1105 INSTALL_{DATA,PROGRAM,SCRIPT} or their install_sh_{DATA,PROGRAM,SCRIPT}
1106 counterpart, depending on the type of files and the need for automatic
1107 target directory creation.
1109 - The "deleted header file problem" for *.m4 files is avoided by
1110 stub rules. This allows `make' to trigger a rerun of `aclocal'
1111 also if some previously needed macro file has been removed.
1113 - Rebuild rules now also work for a removed `subdir/Makefile.in' in
1114 an otherwise up to date tree.
1116 - The `color-tests' option causes colored test result output on terminals.
1118 - The `parallel-tests' option enables a new test driver that allows for
1119 parallel test execution, inter-test dependencies, lazy test execution
1120 for unit-testing, re-testing only failed tests, and formatted result output
1121 as RST (reStructuredText) and HTML. Enabling this option may require some
1122 changes to your test suite setup; see the manual for details.
1124 - The `silent-rules' option enables Linux kernel-style silent build output.
1125 This option requires the widely supported but non-POSIX `make' feature
1126 of recursive variable expansion, so do not use it if your package needs
1127 to build with `make' implementations that do not support it.
1129 To enable less verbose build output, the developer has to use the Automake
1130 option `silent-rules' in `AM_INIT_AUTOMAKE', or call the `AM_SILENT_RULES'
1131 macro. The user may then set the default verbosity by passing the
1132 `--enable-silent-rules' option to `configure'. At `make' run time, this
1133 default may be overridden using `make V=0' for less verbose, and `make V=1'
1134 for backward-compatible verbose output.
1136 - New prefix `notrans_' for manpages which should not be transformed
1137 by --program-transform.
1139 - New macro AM_COND_IF for conditional evaluation and conditional
1142 - For AC_CONFIG_LINKS, if source and destination are equal, do not
1143 remove the file in a non-VPATH build. Such setups work with Autoconf
1146 - AM_MAINTAINER_MODE now allows for an optional argument specifying
1147 the default setting.
1149 - AM_SUBST_NOTMAKE may prevent substitution of AC_SUBSTed variables,
1150 useful especially for multi-line values.
1152 - Automake's early configure-time sanity check now diagnoses an
1153 unsafe absolute source directory name and makes configure fail.
1155 - The Automake macros and rules cope better with whitespace in the
1156 current directory name, as long as the relative path to `configure'
1157 does not contain whitespace. To this end, the values of `$(MISSING)'
1158 and `$(install_sh)' may contain suitable quoting, and their expansion
1159 might need `eval'uation if used outside of a makefile. These
1160 undocumented variables may be used in several documented macros such
1161 as $(AUTOCONF) or $(MAKEINFO).
1165 * Long-standing bugs:
1167 - Fix aix dependency tracking for libtool objects.
1169 - Work around AIX sh quoting issue in AC_PROG_CC_C_O, leading to
1170 unnecessary use of the `compile' script.
1172 - For nobase_*_LTLIBRARIES with nonempty directory components, the
1173 correct `-rpath' argument is used now.
1175 - `config.status --file=Makefile depfiles' now also works with the
1176 extra quoting used internally by Autoconf 2.62 and newer
1177 (it used to work only without the `--file=' bit).
1179 - The `missing' script works better with versioned tool names.
1181 - Semantics for `missing help2man' have been revamped:
1183 Previously, if `help2man' was not present, `missing help2man' would have
1184 the following semantics: if some man page was out of date but present, then
1185 a warning would be printed, but the exit status was 0. If the man page was
1186 not present at all, then `missing' would create a replacement man page
1187 containing an error message, and exit with a status of 2. This does not play
1188 well with `make': the next run will see this particular man page as being up
1189 to date, and will only error out on the next generated man page, if any;
1190 repeat until all pages are done. This was not desirable.
1192 These are the new semantics: if some man page is not present, and help2man
1193 is not either, then `missing' will warn and generate the replacement page
1194 containing the error message, but exit successfully. However, `make dist'
1195 will ensure that no such bogus man pages are packaged into a tarball.
1197 - Targets provided by automake behave better with `make -n', in that they
1198 take care not to create files.
1200 - `config.status Makefile... depfiles' works fine again in the presence of
1201 disabled dependency tracking.
1203 - The default no-op recursive rules for these targets also work with BSD make
1204 now: html, install-html, install-dvi, install-pdf, install-pdf, install-info.
1206 - `make distcheck' works also when both a directory and some file below it
1207 have been added to a distribution variable, such as EXTRA_DIST or *_SOURCES.
1209 - Texinfo dvi, ps, pdf, and html output files are not removed upon
1210 `make mostlyclean' any more; only the LaTeX by-products are.
1212 - Renamed objects also work with the `subdir-objects' option and
1213 source file languages which Automake does not know itself.
1215 - `automake' now correctly complains about variable assignments which are
1216 preceded by a comment, extend over multiple lines with backslash-escaped
1217 newlines, and end in a comment sign. Previous versions would silently
1218 and wrongly ignore such assignments completely.
1220 * Bugs introduced by 1.10:
1222 - Fix output of dummy dependency files in presence of post-processed
1223 Makefile.in's again, but also cope with long lines.
1225 - $(EXEEXT) is automatically appended to filenames of XFAIL_TESTS
1226 that have been declared as programs in the same Makefile.
1227 This is for consistency with the analogous change to TESTS in 1.10.
1229 - Fix order of standard includes to again be `-I. -I$(srcdir)',
1230 followed by directories containing config headers.
1232 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1236 * Version requirements:
1238 - Autoconf 2.60 or greater is required.
1240 - Perl 5.6 or greater is required.
1242 * Changes to aclocal:
1244 - aclocal now also supports -Wmumble and -Wno-mumble options.
1246 - `dirlist' entries (for the aclocal search path) may use shell
1247 wildcards such as `*', `?', or `[...]'.
1249 - aclocal supports an --install option that will cause system-wide
1250 third-party macros to be installed in the local directory
1251 specified with the first -I flag. This option also uses #serial
1252 lines in M4 files to upgrade local macros.
1254 The new aclocal options --dry-run and --diff help to review changes
1255 before they are installed.
1257 - aclocal now outputs an autoconf version check in aclocal.m4 in
1258 projects using automake.
1260 For a few years, automake and aclocal have been calling autoconf
1261 (or its underlying engine autom4te) to accurately retrieve the
1262 data they need from configure.ac and its siblings. Doing so can
1263 only work if all autotools use the same version of autoconf. For
1264 instance a Makefile.in generated by automake for one version of
1265 autoconf may stop working if configure is regenerated with another
1266 version of autoconf, and vice versa.
1268 This new version check ensures that the whole build system has
1269 been generated using the same autoconf version.
1271 * Support for new Autoconf macros:
1273 - The new AC_REQUIRE_AUX_FILE Autoconf macro is supported.
1275 - If `subdir-objects' is set, and AC_CONFIG_LIBOBJ_DIR is specified,
1276 $(LIBOBJS), $(LTLIBOBJS), $(ALLOCA), and $(LTALLOCA) can be used
1277 in different directories. However, only one instance of such a
1278 library objects directory is supported.
1280 * Change to Libtool support:
1282 - Libtool generic flags (those that go before the --mode=MODE option)
1283 can be specified using AM_LIBTOOLFLAGS and target_LIBTOOLFLAGS.
1285 * Yacc and Lex changes:
1287 - The rebuild rules for distributed Yacc and Lex output will avoid
1288 overwriting existing files if AM_MAINTAINER_MODE and maintainer-mode
1291 - ylwrap is now always used for lex and yacc source files,
1292 regardless of whether there is more than one source per directory.
1294 * Languages changes:
1296 - Preprocessed assembler (*.S) compilation now honors CPPFLAGS,
1297 AM_CPPFLAGS and per-target _CPPFLAGS, and supports dependency
1298 tracking, unlike non-preprocessed assembler (*.s).
1300 - subdir-object mode works now with Assembler. Automake assumes
1301 that the compiler understands `-c -o'.
1303 - Preprocessed assembler (*.S) compilation now also honors
1304 $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES).
1306 - Improved support for Objective C:
1307 - Autoconf's new AC_PROG_OBJC will enable automatic dependency tracking.
1308 - A new section of the manual documents the support.
1310 - New support for Unified Parallel C:
1311 - AM_PROG_UPC looks for a UPC compiler.
1312 - A new section of the manual documents the support.
1314 - Per-target flags are now correctly handled in link rules.
1316 For instance maude_CFLAGS correctly overrides AM_CFLAGS; likewise
1317 for maude_LDFLAGS and AM_LDFLAGS. Previous versions bogusly
1318 preferred AM_CFLAGS over maude_CFLAGS while linking, and they
1319 used both AM_LDFLAGS and maude_LDFLAGS on the same link command.
1321 The fix for compiler flags (i.e., using maude_CFLAGS instead of
1322 AM_CFLAGS) should not hurt any package since that is how _CFLAGS
1323 is expected to work (and actually works during compilation).
1325 However using maude_LDFLAGS "instead of" AM_LDFLAGS rather than
1326 "in addition to" breaks backward compatibility with older versions.
1327 If your package used both variables, as in
1329 AM_LDFLAGS = common flags
1330 bin_PROGRAMS = a b c
1331 a_LDFLAGS = more flags
1334 and assumed *_LDFLAGS would sum up, you should rewrite it as
1336 AM_LDFLAGS = common flags
1337 bin_PROGRAMS = a b c
1338 a_LDFLAGS = $(AM_LDFLAGS) more flags
1341 This new behavior of *_LDFLAGS is more coherent with other
1342 per-target variables, and the way *_LDFLAGS variables were
1343 considered internally.
1345 * New installation targets:
1347 - New targets mandated by GNU Coding Standards:
1352 By default they will only install Texinfo manuals.
1353 You can customize them with *-local variants:
1359 - The undocumented recursive target `uninstall-info' no longer exists.
1360 (`uninstall' is in charge of removing all possible documentation
1361 flavors, including optional formats such as dvi, ps, or info even
1362 when `no-installinfo' is used.)
1364 * Miscellaneous changes:
1366 - Automake no longer complains if input files for AC_CONFIG_FILES
1367 are specified using shell variables.
1369 - clean, distribution, or rebuild rules are normally disabled for
1370 inputs and outputs of AC_CONFIG_FILES, AC_CONFIG_HEADERS, and
1371 AC_CONFIG_LINK specified using shell variables. However, if these
1372 variables are used as ${VAR}, and AC_SUBSTed, then Automake will
1373 be able to output rules anyway.
1374 (See the Automake documentation for AC_CONFIG_FILES.)
1376 - $(EXEEXT) is automatically appended to filenames of TESTS
1377 that have been declared as programs in the same Makefile.
1378 This is mostly useful when some check_PROGRAMS are listed in TESTS.
1380 - `-Wportability' has finally been turned on by default for `gnu' and
1381 `gnits' strictness. This means, automake will complain about %-rules
1382 or $(GNU Make functions) unless you switch to `foreign' strictness or
1383 use `-Wno-portability'.
1385 - Automake now uses AC_PROG_MKDIR_P (new in Autoconf 2.60), and uses
1386 $(MKDIR_P) instead of $(mkdir_p) to create directories. The
1387 $(mkdir_p) variable is still defined (to the same value as
1388 $(MKDIR_P)) but should be considered obsolete. If you are using
1389 $(mkdir_p) in some of your rules, please plan to update them to
1390 $(MKDIR_P) at some point.
1392 - AM_C_PROTOTYPES and ansi2knr are now documented as being obsolete.
1393 They still work in this release, but may be withdrawn in a future one.
1395 - Inline compilation rules for gcc3-style dependency tracking are
1398 - Automake installs a "Hello World!" example package in $(docdir).
1399 This example is used throughout the new "Autotools Introduction"
1400 chapter of the manual.
1402 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1406 * Makefile.in bloat reduction:
1408 - Inference rules are used to compile sources in subdirectories when
1409 the `subdir-objects' option is used and no per-target flags are
1410 used. This should reduce the size of some projects a lot, because
1411 Automake used to output an explicit rule for each such object in
1414 - Automake no longer outputs three rules (.o, .obj, .lo) for each
1415 object that must be built with explicit rules. It just outputs
1416 the rules required to build the kind of object considered: either
1417 the two .o and .obj rules for usual objects, or the .lo rule for
1420 * Change to Libtool support:
1422 - Libtool tags are used with libtool versions that support them.
1423 (I.e., with Libtool 1.5 or greater.)
1425 - Automake is now able to handle setups where a libtool library is
1426 conditionally installed in different directories, as in
1429 lib_LTLIBRARIES = liba.la
1431 pkglib_LTLIBRARIES = liba.la
1433 liba_la_SOURCES = ...
1435 * Changes to aclocal:
1437 - aclocal now ensures that AC_DEFUNs and AU_DEFUNs it discovers are
1438 really evaluated, before it decides to include them in aclocal.m4.
1439 This solves nasty problems with conditional redefinitions of
1440 Autoconf macros in /usr/share/aclocal/*.m4 files causing extraneous
1441 *.m4 files to be included in any project using these macros.
1442 (Calls to AC_PROG_EGREP causing libtool.m4 to be included is the
1443 most famous instance of this bug.)
1445 - Do not complain about missing conditionally AC_REQUIREd macros
1446 that are not actually used. In 1.8.x aclocal would correctly
1447 determine which of these macros were really needed (and include
1448 only these in the package); unfortunately it would also require
1449 all of them to be present in order to run. This created
1450 situations were aclocal would not work on a tarball distributing
1451 all the macros it uses. For instance running aclocal on a project
1452 containing only the subset of the Gettext macros in use by the
1453 project did not work, because gettext conditionally requires other
1456 * Portability improvements:
1458 - Tar format can be chosen with the new options tar-v7, tar-ustar, and
1459 tar-pax. The new option filename-length-max=99 helps diagnosing
1460 filenames that are too long for tar-v7. (PR/414)
1462 - Variables aumented with `+=' are now automatically flattened (i.e.,
1463 trailing backslashes removed) and then wrapped around 80 colummns
1464 (adding trailing backslashes). In previous versions, a long series
1470 would result in a single-line definition of VAR that could possibly
1471 exceed the maximum line length of some make implementations.
1473 Non-augmented variables are still output as they are defined in
1478 - Support Fortran 90/95 with the new "fc" and "ppfc" languages.
1479 Works the same as the old Fortran 77 implementation; just replace
1480 F77 with FC everywhere (exception: FFLAGS becomes FCFLAGS).
1481 Requires a version of autoconf which provides AC_PROG_FC (>=2.59).
1483 - Support for conditional _LISP.
1485 - Support for conditional -hook and -local rules (PR/428).
1487 - Diagnose AC_CONFIG_AUX_DIR calls following AM_INIT_AUTOMAKE. (PR/49)
1489 - Automake will not write any Makefile.ins after the first error it
1490 encounters. The previous Makefile.ins (if any) will be left in
1491 place. (Warnings will not prevent output, but remember they can
1492 be turned into errors with -Werror.)
1494 - The restriction that SUBDIRS must contain direct children is gone.
1497 - The manual tells more about SUBDIRS vs. DIST_SUBDIRS.
1498 It also gives an example of nested packages using AC_CONFIG_SUBDIRS.
1500 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1502 Bugs fixed in 1.8.5:
1504 * Long-standing bugs:
1506 - Define DIST_SUBDIRS even when the `no-dist' or `cygnus' options are used
1507 so that `make distclean' and `make maintainer-clean' can work.
1509 - Define AR and ARFLAGS even when only EXTRA_LIBRARIES are defined.
1511 - Fix many rules to please FreeBSD make, which runs commands with `sh -e'.
1513 - Polish diagnostic when no input file is found.
1515 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1517 Bugs fixed in 1.8.4:
1519 * Long-standing bugs:
1521 - Fix AM_PATH_PYTHON to correctly display $PYTHON when it has been
1522 overridden by the user.
1524 - Honor PATH_SEPARATOR in various places of the Automake package, for
1527 - Adjust dependency tracking mode detection to ICC 8.0's new output.
1530 - Fix install-sh so it can install the `mv' binary... using `mv'.
1532 - Fix tru64 dependency tracking for libtool objects.
1534 - Work around Exuberant Ctags when creating a TAGS files in a directory
1535 without files to scan but with subdirectories to include.
1537 * Bugs introduced by 1.8:
1539 - Fix an "internal error" when @LIBOBJS@ is used in a variable that is
1540 not defined in the same conditions as the _LDADD that uses it.
1542 - Do not warn when JAVAROOT is overridden, this is legitimate.
1544 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1546 Bugs fixed in 1.8.3:
1548 * Long-standing bugs:
1550 - Quote filenames in installation rules, in case $DESTDIR, $prefix,
1551 or any of the other *dir variables contain a space.
1553 Please note that Automake does not and cannot support spaces in
1554 filenames that are involved during the build. This change affects
1555 only installation paths, so that `make install' does not bomb out
1556 in packages configured with
1557 ./configure --prefix '/c/Program Files'
1559 - Fix the depfiles output so it works with GNU sed (<4.1) even when
1560 POSIXLY_CORRECT is set.
1562 - Do not AC_SUBST(LIBOBJS) in AM_WITH_REGEX. This macro was unusable
1563 since Autoconf 2.54, which defines LIBOBJS itself.
1565 - Fix a potential (but unlikely) race condition in parallel elisp
1566 builds. (Introduced in 1.7.3.)
1568 - Do not assume that users override _DEPENDENCIES in all conditions
1569 where Automake will try to define them.
1571 - Do not use `mkdir -p' in mkinstalldirs, unless this is GNU mkdir.
1572 Solaris 8's `mkdir -p' is not thread-safe and can break parallel
1575 This fix also affects the $(mkdir_p) variable defined since
1576 Automake 1.8. It will be set to `mkdir -p' only if mkdir is GNU
1577 mkdir, and to `mkinstalldirs' or `install-sh -d' otherwise.
1579 - Secure temporary directory creation in `make distcheck'. (PR/413)
1581 - Do not generate two build rules for `parser.h' when the
1582 parser appears in two different conditionals.
1584 - Work around a Solaris 8 /bin/sh bug in the test for dependency
1585 checking. Usually ./configure will not pick this shell; so this
1586 fix only helps cases where the shell is forced to /bin/sh.
1588 * Bugs introduced by 1.8:
1590 - In some situations (hand-written `m4_include's), aclocal would
1591 call the `File::Spec->rel2abs' method, which was only introduced
1592 in Perl 5.6. This new version reestablish support Perl 5.005.
1594 It is likely that the next major Automake releases will require at
1595 least Perl 5.6. Consider upgrading your development environment
1596 if you are still using the five-year-old Perl 5.005.
1598 - Automake would sometimes fail to define rules for targets listed
1599 in variables defined in multiple conditions. For instance on
1605 it would define only the `a.$(OBJEXT): a.c' rule and omit the
1606 `b.$(OBJEXT): b.c' rule.
1608 * New sections in manual:
1610 - Third-Party Makefiles: how to interface third party Makefiles.
1611 - Upgrading: upgrading packages to newer Automake versions.
1612 - Multiple Outputs: handling tools that produce many outputs.
1614 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1618 * A (well known) portability bug slipped in the changes made to
1619 install-sh in Automake 1.8.1. The broken install-sh would refuse to
1620 install anything on Tru64.
1622 * Fix install rules for conditionally built python files. (This never
1625 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1629 * Bugs introduced by 1.8:
1631 - Fix Config.pm import error with old Perl versions (at least
1632 5.005_03). One symptom is that aclocal could not find its macro
1635 - Automake 1.8 used `mkdir -m 0755 -p --' to ensure that directories
1636 created by `make install' are always world readable, even if the
1637 installer happens to have an overly restrictive umask (e.g. 077).
1638 This was a mistake and has been reverted. There are at least two
1639 reasons why we must not use `-m 0755':
1640 - it causes special bits like SGID to be ignored,
1641 - it may be too restrictive (some setups expect 775 directories).
1643 - Fix aclocal to honor definitions located in files which have been
1644 m4_included manually. aclocal 1.8 had been updated to check
1645 m4_included files for new requirements, but forgot that these
1646 m4_included files can also provide new definitions.
1648 Note that if you have such a setup, we recommend you get rid of
1649 it. In the past, there was a reason to m4_include files manually:
1650 aclocal used to duplicate entire M4 files into aclocal.m4, even
1651 files that were distributed. Some packages were therefore
1652 m4_including the distributed file directly, and playing some
1653 tricks to ensure aclocal would not copy that file to aclocal.m4,
1654 in order to limit the amount of duplication. Since aclocal 1.8.x
1655 will precisely output m4_includes for local M4 files, we recommend
1656 that you clean up your setup, removing all manual m4_includes and
1657 letting aclocal output them.
1659 - Output detailed menus in the Info version if the Automake manual,
1660 so that Emacs can locate the indexes.
1662 - configure.ac and configure were listed twice in DIST_COMMON (an
1663 internal variable where Automake lists configury files to
1664 distribute). This was harmless, but unaesthetic.
1666 - Use `chmod a-w' instead of `chmod -w' as the latter honors umask.
1667 This was an issue only in the Automake package itself, not in
1670 - Automake assumed that all AC_CONFIG_LINKS arguments had the form
1671 DEST:SRC. This was wrong, as some packages do
1672 AC_CONFIG_LINKS($computedlinks). This version no longer abort in
1675 - Contrary to mkinstalldirs, $(mkdir_p) was expecting exactly one
1676 argument. This caused two kinds of failures:
1677 - Rules installing data in a conditionally defined directory
1678 failed when that directory was undefined. In this case no
1679 argument was supplied.
1680 - `make installdirs' failed, because several directories were
1681 passed to $(mkdir_p). This was an issue only on platform
1682 were $(mkdir_p) is implemented with `install-sh -d'.
1683 $(mkdir_p) as been changed to accept 0 or more arguments, as
1686 * Long-standing bugs:
1688 - Fix an unexpected diagnostic occurring when users attempt
1689 to override some internal variables that Automake appends to.
1691 - aclocal now scans configure.ac for macro definitions (PR/319).
1693 - Fix a portability issue with OSF1/Tru64 Make. If a directory
1694 distributes files which are outside itself (this usually occurs
1695 when using AC_CONFIG_AUX_DIR([../dir]) to use auxiliary files
1696 from a parent package), then `make distcheck' fails due to an
1697 optimization performed by OSF1/Tru64 Make in its VPATH handling.
1698 (tests/subpkg2.test failure)
1700 - Fix another portability issue with Sun and OSF1/Tru64 Make.
1701 In a VPATH-build configuration, `make install' would install
1702 nobase_ files to wrong locations.
1704 - Fix a Perl `uninitialized value' diagnostic occurring when
1705 automake complains that a Texinfo file does not have a
1706 @setfilename statement.
1708 - Erase config.status.lineno during `make distclean'. This file
1709 can be created by config.status. Automake already knew about
1710 configure.lineno, but forgot config.status.lineno.
1712 - Distribute all files, even those which are built and installed
1713 conditionally. This change affects files listed in conditionally
1714 defined *_HEADERS and *_PYTHON variable (unless they are nodist_*)
1715 as well as those listed in conditionally defined dist_*_DATA,
1716 dist_*_JAVA, dist_*_LISP, and dist_*_SCRIPTS variables.
1718 - Fix AM_PATH_LISPDIR to avoid \? in sed regular expressions; it
1719 doesn't conform to POSIX.
1721 - Normalize help strings for configure variables and options added
1726 - Check for python2.4 in AM_PATH_PYTHON.
1728 * Spurious failures in test suite:
1730 - tests/libtool5.test, tests/ltcond.test, tests/ltcond2.test,
1731 tests/ltconv.test: fix failures with CVS Libtool.
1732 - tests/aclocal6.test: fix failure if autom4te.cache is disabled.
1733 - tests/txinfo24.test, tests/txinfo25.test, tests/txinfo28.test:
1734 fix failures with old Texinfo versions.
1736 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1742 - The NEWS file is more verbose.
1746 - Autoconf 2.58 or greater is required.
1750 - Default source file names in the absence of a _SOURCES declaration
1751 are made by removing any target extension before appending `.c', so
1752 to make the libtool module `foo.la' from `foo.c', you only need to
1755 lib_LTLIBRARIES = foo.la
1756 foo_la_LDFLAGS = -module
1758 For backward compatibility, foo_la.c will be used instead of
1759 foo.c if this file exists or is the explicit target of a rule.
1760 However -Wobsolete will warn about this deprecated naming.
1762 - AR's `cru' flags are now set in a global ARFLAGS variable instead
1763 of being hard-coded in each $(AR) invocation, so they can be
1764 substituted from configure.ac. This has been requested by people
1765 dealing with non-POSIX ar implementations.
1767 - New warning option: -Woverride. This will warn about any user
1768 target or variable definitions which override Automake
1771 - Texinfo rules back up and restore info files when makeinfo fails.
1773 - Texinfo rules now support the `html' target.
1774 Running this requires Texinfo 4.0 or greater.
1776 `html' is a new recursive target, so if your package mixes
1777 hand-crafted `Makefile.in's with Automake-generated
1778 `Makefile.in's, you should adjust the former to support (or
1779 ignore) this target so that `make html' recurses successfully. If
1780 you had a custom `html' rule in your `Makefile.am', it's better to
1781 rename it as `html-local', otherwise your rule will override
1782 Automake's new rule (you can check that by running `automake
1783 -Woverride') and that will stop the recursion to subdirectories.
1785 Last but not least, this `html' rule is declared PHONY, even when
1786 overridden. Fortunately, it appears that few packages use a
1787 non-PHONY `html' rule.
1789 - Any file which is m4_included from configure.ac will appear as a
1790 configure and Makefile.in dependency, and will be automatically
1793 - The rules for rebuilding Makefiles and Makefile.ins will now
1794 rebuild all Makefiles and all Makefile.ins at once when one of
1795 configure's dependencies has changed. This is considerably faster
1796 than previous implementations, where config.status and automake
1797 were run separately in each directory (this still happens when you
1798 change a Makefile.am locally, without touching configure.ac or
1799 friends). Doing this also solves a longstanding issue: these
1800 rebuild rules failed to work when adding new directories to the
1801 tree, forcing you to run automake manually.
1803 - For similar reasons, the rules to rebuild configure,
1804 config.status, and aclocal.m4 are now defined in all directories.
1805 Note that if you were using the CONFIG_STATUS_DEPENDENCIES and
1806 CONFIGURE_DEPENDENCIES (formerly undocumented) variables, you
1807 should better define them in all directories. This is easily done
1808 using an AC_SUBST (make sure you prefix these dependencies with
1809 $(top_srcdir) since this variable will appear at different
1810 levels of the build tree).
1812 - aclocal will now use `m4_include' instead of copying local m4
1813 files into aclocal.m4. (Local m4 files are those you ship with
1814 your project, other files will be copied as usual.)
1816 Because m4_included files are automatically distributed, it means
1817 for most projects there is no point in EXTRA_DISTing the list of
1818 m4 files which are used. (You can probably get rid of
1819 m4/Makefile.am if you had one.)
1821 - aclocal will avoid touching aclocal.m4 when possible, so that
1822 Autom4te's cache isn't needlessly invalidated. This behavior can
1823 be switched off with the new `--force' option.
1825 - aclocal now uses Autoconf's --trace to detect macros which are
1826 actually used and will no longer include unused macros simply
1827 because they where mentioned. This was often the case for macros
1828 called conditionally.
1830 - New options no-dist and no-dist-gzip.
1832 - compile, depcomp, elisp-comp, install-sh, mdate-sh, mkinstalldirs,
1833 py-compile, and ylwrap, now all understand --version and --help.
1835 - Automake will now recognize AC_CONFIG_LINKS so far as removing created
1836 links as part of the distclean target and including source files in
1839 - AM_PATH_PYTHON now supports ACTION-IF-FOUND and ACTION-IF-NOT-FOUND
1840 argument. The latter can be used to override the default behavior
1841 (which is to abort).
1843 - Automake will exit with $? = 63 on version mismatch. (So does
1844 Autoconf 2.58) missing knows this, and in this case it will
1845 emulate the tools as if they were absent. Because older versions
1846 of Automake and Autoconf did not use this exit code, this change
1847 will only be useful in projects generated with future versions of
1850 - When using AC_CONFIG_FILES with multiple input files, Automake
1851 generates the first ".in" input file for which a ".am" exists.
1852 (Former versions would try to use only the first input file.)
1854 - lisp_DATA is now allowed. If you are using the empty ELCFILES
1855 idiom to disable byte-compilation of lisp_LISP files, it is
1856 recommended that you switch to using lisp_DATA. Note that
1857 this is not strictly equivalent: lisp_DATA will install elisp
1858 files even if emacs is not installed, while *_LISP do not
1859 install anything unless emacs is found.
1861 - Makefiles will prefer `mkdir -p' over mkinstalldirs if it is
1862 available. This selection is achieved through the Makefile
1863 variable $(mkdir_p) that is set by AM_INIT_AUTOMAKE to either
1864 `mkdir -m 0755 -p --', `$(mkinstalldirs) -m 0755', or
1865 `$(install_sh) -m 0755 -d'.
1869 - Because `mkdir -p' is available on most platforms, and we can use
1870 `install-sh -d' when it is not, the use of the mkinstalldirs
1871 script is being phased out. `automake --add-missing' no longer
1872 installs it, and if you remove mkinstalldirs from your package,
1873 automake will define $(mkinstalldirs) as an alias for $(mkdir_p).
1875 Gettext 0.12.1 still requires mkinstalldirs. Fortunately
1876 gettextize and autopoint will install it when needed. Automake
1877 will continue to define the $(mkinstalldirs) and to distribute
1878 mkinstalldirs when this script is in the source tree.
1880 - AM_PROG_CC_STDC is now empty. The content of this macro was
1881 merged in AC_PROG_CC. If your code uses $am_cv_prog_cc_stdc, you
1882 should adjust it to use $ac_cv_prog_cc_stdc instead. (This
1883 renaming should be safe, even if you have to support several,
1884 versions of Automake, because AC_PROG_CC defines this variable
1885 since Autoconf 2.54.)
1887 - Some users where using the undocumented ACLOCAL_M4_SOURCES
1888 variable to override the aclocal.m4 dependencies computed
1889 (inaccurately) by older versions of Automake. Because Automake
1890 now tracks configure's m4 dependencies accurately (see m4_include
1891 above), the use of ACLOCAL_M4_SOURCES should be considered
1892 obsolete and will be flagged as such when running `automake
1897 - Defining programs conditionally using Automake conditionals no
1898 longer leads to a combinatorial explosion. The following
1899 construct used to be troublesome when used with dozens of
1914 Likewise for _SOURCES, _LDADD, and _LIBADD variables.
1916 - Due to implementation constraints, previous versions of Automake
1917 proscribed multiple conditional definitions of some variables
1927 All _PROGRAMS, _LDADD, and _LIBADD variables were affected.
1928 This restriction has been lifted, and these variables now
1929 support multiple conditional definitions as do other variables.
1931 - Cleanup the definitions of $(distdir) and $(top_distdir).
1932 $(top_distdir) now points to the root of the distribution
1933 directory created during `make dist', as it did in Automake 1.4,
1934 not to the root of the build tree as it did in intervening
1935 versions. Furthermore these two variables are now only defined in
1936 the top level Makefile, and passed to sub-directories when running
1939 - The --no-force option now correctly checks the Makefile.in's
1940 dependencies before deciding not to update it.
1942 - Do not assume that make files are called Makefile in cleaning rules.
1944 - Update .info files in the source tree, not in the build tree. This
1945 is what the GNU Coding Standard recommend. Only Automake 1.7.x
1946 used to update these files in the build tree (previous versions did
1947 it in the source tree too), and it caused several problems, varying
1948 from mere annoyance to portability issues.
1950 - COPYING, COPYING.LIB, and COPYING.LESSER are no longer overwritten
1951 when --add-missing and --force-missing are used. For backward
1952 compatibility --add-missing will continue to install COPYING (in
1953 `gnu' strictness) when none of these three files exist, but this
1954 use is deprecated: you should better choose a license yourself and
1955 install it once for all in your source tree (and in your code
1958 - Fix ylwrap so that it does not overwrite header files that haven't
1959 changed, as the inline rule already does.
1961 - User-defined rules override automake-defined rules for the same
1962 targets, even when rules do not have commands. This is not new
1963 (and was documented), however some of the automake-generated
1964 rules have escaped this principle in former Automake versions.
1965 Rules for the following targets are affected by this fix:
1967 clean, clean-am, dist-all, distclean, distclean-am, dvi, dvi-am,
1968 info, info-am, install-data-am, install-exec-am, install-info,
1969 install-info-am, install-man, installcheck-am, maintainer-clean,
1970 maintainer-clean-am, mostlyclean, mostlyclean-am, pdf, pdf-am,
1971 ps, ps-am, uninstall-am, uninstall-info, uninstall-man
1973 Practically it means that an attempt to supplement the dependencies
1974 of some target, as in
1976 clean: my-clean-rule
1978 will now *silently override* the automake definition of the
1979 rule for this target. Running `automake -Woverride' will diagnose
1980 all such overriding definitions.
1982 It should be noted that almost all of these targets support a *-local
1983 variant that is meant to supplement the automake-defined rule
1984 (See node `Extending' in the manual). The above rule should
1987 clean-local: my-clean-rule
1989 These *-local targets have been documented since at least
1990 Automake 1.2, so you should not fear the change if you have
1991 to support multiple automake versions.
1995 - The Automake manual is now distributed under the terms of the GNU FDL.
1997 - Targets dist-gzip, dist-bzip2, dist-tarZ, dist-zip are always defined.
1999 - core dumps are no longer removed by the cleaning rules. There are
2000 at least three reasons for this:
2001 1. These files should not be created by any build step,
2002 so their removal do not fit any of the cleaning rules.
2003 Actually, they may be precious to the developer.
2004 2. If such file is created during a build, then it's clearly a
2005 bug Automake should not hide. Not removing the file will
2006 cause `make distcheck' to complain about its presence.
2007 3. Operating systems have different naming conventions for
2008 core dump files. A core file on one system might be a
2009 completely legitimate data file on another system.
2011 - RUNTESTFLAGS, CTAGSFLAGS, ETAGSFLAGS, JAVACFLAGS are no longer
2012 defined by Automake. This means that any definition in the
2013 environment will be used, unless overridden in the Makefile.am or
2014 on the command line. The old behavior, where these variables were
2015 defined empty in each Makefile, can be obtained by AC_SUBSTing or
2016 AC_ARG_VARing each variable from configure.ac.
2018 - CONFIGURE_DEPENDENCIES and CONFIG_STATUS_DEPENDENCIES are now
2019 documented. (The is not a new feature, these variables have
2020 been there since at least Automake 1.4.)
2022 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2024 Bugs fixed in 1.7.9:
2025 * Fix install-strip to work with nobase_ binaries.
2026 * Fix renaming of #line directives in ylwrap.
2027 * Rebuild with Autoconf 2.59. (1.7.8 was not installable with pdksh.)
2029 Bugs fixed in 1.7.8:
2030 * Remove spurious blank lines in cleaning rules introduced in 1.7.7.
2031 * Fix detection of Debian's install-info, broken since version 1.5.
2032 (Debian bug #213524).
2033 * Honor -module if it appears in AM_LDFLAGS (i.e., relax name checking)
2034 This was only done for libfoo_LDFLAGS and LDFLAGS in previous versions.
2036 Bugs fixed in 1.7.7:
2037 * The implementation of automake's --no-force option is unreliable,
2038 so this option is ignored in this version. A real fix will appear in
2039 Automake 1.8. (Debian Bug #206299)
2040 * AM_PATH_PYTHON: really check the whole list of interpreters if no
2041 argument is given. (PR/399)
2042 * Do not warn about leading `_' in variable names, even with -Wportability.
2043 * Support user redefinitions of TEXINFO_TEX.
2044 * depcomp: support AIX Compiler version 6.
2045 * Fix missing rebuilds during `make dist' with BSD make.
2046 (Could produce tarballs containing out-of-date files.)
2047 * Resurrect multilib support.
2048 * Noteworthy manual updates:
2049 - Extending aclocal: how to write m4 macros that won't trigger warnings
2051 - A Shared Library: Rewrite and split into subsections.
2053 Bugs fixed in 1.7.6:
2054 * Fix depcomp's icc mode for ICC 7.1.
2055 * Diagnose calls to AC_CONFIG_FILES and friends with not enough arguments.
2056 * Fix maintainer-clean's removal of autom4te.cache in VPATH builds.
2057 * Fix AM_PATH_LISPDIR to work with POSIXLY_CORRECT=1.
2058 * Fix the location reported in some diagnostics related to AUTOMAKE_OPTIONS.
2059 * Remove Latin-1 characters from elisp-comp.
2060 * Update the manual's @dircategory to match the Free Software Directory.
2062 Bugs fixed in 1.7.5:
2063 * Update install-sh's license to remove an advertising clause.
2064 (Debian bug #191717)
2065 * Fix a bug introduced in 1.7.4, related to BUILT_SOURCE handling,
2066 that caused invalid Makefile.ins to be generated.
2067 * Make sure AM_MAKE_INCLUDE doesn't fail when a `doit' file exists.
2068 * New FAQ entry: renamed objects.
2070 Bugs fixed in 1.7.4:
2071 * Tweak the TAGS rule to support Exuberant Ctags (in addition to
2072 the Emacs implementation)
2073 * Fix output of aclocal.m4 dependencies in subdirectories.
2074 * Use `mv -f' instead of `mv' in fastdep rules.
2075 * Upgrade mdate-sh to work on OS/2.
2076 * Don't byte-compile elisp files when ELCFILES is set empty.
2077 (this documented feature was broken by 1.7.3)
2078 * Diagnose trailing backslashes on last line of Makefile.am.
2079 * Diagnose whitespace following trailing backslashes.
2080 * Multiple tests are now correctly supported in DEJATOOL. (PR/388)
2081 * Fix rebuilt rules for AC_CONFIG_FILES([Makefile:Makefile.in:Makefile.bot])
2083 * `make install' will build `BUILT_SOURCES' first.
2084 * Minor documentation fixes.
2086 Bugs fixed in 1.7.3:
2087 * Fix stamp files numbering (when using multiple AC_CONFIG_HEADERS).
2088 * Query distutils for `pythondir' and `pythonexecdir', instead of
2089 using an hardcoded path. This should allow builds on 64-bit
2090 distributions that usually use lib64/ instead of lib/.
2091 * AM_PATH_PYTHON will also search for python2.3.
2092 * elisp files are now built all at once instead of one by one. Besides
2093 incurring a speed-up, this is required to support interdependent elisp files.
2094 * Support for DJGPP:
2095 - `make distcheck' will now work in `_inst/' and `_build' instead
2096 of `=inst/' and `=build/'
2097 - use `_dirstamp' when the file-system doesn't support `.dirstamp'
2098 - install/uninstall `*.i[0-9][0-9]'-style info files
2099 - more changes that affect only the Automake package (not its output)
2100 * Fix some incompatibilities with upcoming perl-5.10.
2101 * Properly quote AC_PACKAGE_TARNAME and AC_PACKAGE_VERSION when defining
2102 PACKAGE and VERSION.
2104 - dashmstdout and dashXmstdout modes: don't use `-o /dev/null', this
2105 is troublesome with gcc and Solaris compilers. (PR/385)
2106 - makedepend mode: work with Libtool. (PR/385 too)
2108 * better support for unusual gettext setups, such as multiple po/ directories
2110 - Flag missing po/ and intl/ directories as warnings, not errors.
2111 - Disable these warnings if po/ does not exist.
2112 * Noteworthy manual updates:
2114 - Document how AC_CONFIG_AUX_DIR interacts with missing files.
2116 - Document `AM_YFLAGS = -d'. (PR/382)
2118 Bugs fixed in 1.7.2:
2119 * Fix installation and uninstallation of Info files built in subdirectories.
2120 * Do not run `./configure --with-included-gettext' during `make distcheck'
2121 if AM_GNU_GETTEXT([external]) is used.
2122 * Correctly uninstall renamed man pages.
2123 * Do not strip escaped newline in variables defined in one condition
2124 and augmented in another condition.
2125 * Fix ansi2knr rules for LIBOBJS sources.
2126 * Clean all known Texinfo index files, not only those which appear to
2127 be used, because we cannot know which indexes are used in included files.
2128 (PR/375, Debian Bug #168671)
2129 * Honor only the first @setfilename seen in a Texinfo file.
2130 * Treat "required file X not found" diagnostics as errors (exit status 1).
2131 * Don't complain that a required file is not found when it is a Makefile
2133 * Don't use single suffix inference rules when building `.info'-less
2134 Info files, for the sake of Solaris make.
2135 * The `check' target now depends on `$(BUILT_SOURCES)'. (PR/359)
2136 * Recognize multiple inference rules such as `.a.b .c.d:'. (PR/371)
2137 * Warn about multiple inference rules when -Wportability is used. (PR/372)
2138 * Fix building of deansified files from subdirectories. (PR/370)
2139 * Add missing `fi' in the .c->.obj rules.
2140 * Improve install-sh to work even when names contain spaces or certain
2141 (but not all) shell metachars.
2142 * Fix the following spurious failures in the test suite:
2143 depcomp2.test, gnits2.test, gnits3.test, python3.test, texinfo13.test
2144 * Noteworthy manual updates:
2145 - Augment the section about BUILT_SOURCES.
2146 - Mention that AM_PROG_CC_STDC is a relic that is better avoided today.
2148 Bugs fixed in 1.7.1:
2149 * Honor `ansi2knr' for files built in subdirectories, or using per-targets
2151 * Aclocal should now recognize macro names containing parentheses, e.g.
2152 AC_DEFUN([AC_LANG_PREPROC(Fortran 90)], [...]).
2153 * Erase *.sum and *.log files created by DejaGnu, during `make distclean'.
2155 * Install Python files even if they were built. (PR/369)
2156 * Have stamp-vti dependent upon configure instead of configure.ac, as the
2157 version might not be defined in the latter. (PR/358)
2158 * Reorder arguments passed to a couple of commands, so things works
2159 when POSIXLY_CORRECT=1.
2160 * Fix a regex that can cause Perl to segfault on large input.
2162 * Fix distribution of packages that have some sources defined conditionally,
2163 as in the `Conditional compilation using Automake conditionals' example
2165 * Fix spurious test suite failures on IRIX.
2166 * Don't report a required variable as undefined if it has been
2167 defined conditionally for the "right" conditions.
2168 * Fix cleaning of the /tmp subdirectory used by `make distcheck', in case
2169 `make distcheck' fails.
2170 * Fix distribution of included Makefile fragment, so we don't create
2171 spurious directories in the distribution. (PR/366)
2172 * Don't complain that a target lacks `.$(EXEEXT)' when it has it.
2175 * Autoconf 2.54 is required.
2176 * `aclocal' and `automake' will no longer warn about obsolete
2177 configure macros. This is done by `autoconf -Wobsolete'.
2178 * AM_CONFIG_HEADER, AM_SYS_POSIX_TERMIOS and
2179 AM_HEADER_TIOCGWINSZ_NEEDS_SYS_IOCTL are obsolete (although still
2180 supported). You should use AC_CONFIG_HEADERS, AC_SYS_POSIX_TERMIOS,
2181 and AC_HEADER_TIOCGWINSZ instead. `autoupdate' can upgrade
2182 `configure.ac' for you.
2183 * Support for per-program and per-library `_CPPFLAGS'.
2184 * New `ctags' target (builds CTAGS files).
2185 * Support for -Wmumble and -Wno-mumble, where mumble is a warning category
2186 (see `automake --help' or the manual for a list of them).
2187 * Honor the WARNINGS environment variable.
2188 * Omit the call to depcomp when using gcc3: call the compiler directly.
2189 * A new option, std-options, tests that programs support --help and --version
2190 when `make installcheck' is run. This is enabled by --gnits.
2191 * Texinfo rules now support the `ps' and `pdf' targets.
2192 * Info files are now created in the build directory, not the source directory.
2193 * info_TEXINFOS supports files in subdirectories (this requires Texinfo 4.1
2195 * `make distcheck' will enforce DESTDIR support by attempting
2197 * `+=' can be used in conditionals, even if the augmented variable
2198 was defined for another condition.
2199 * Makefile fragments (inserted with `include') are always distributed.
2200 * Use Autoconf's --trace interface to inspect configure.ac and get
2201 a more accurate view of it.
2202 * Add support for extending aclocal's default macro search path
2203 using a `dirlist' file within the aclocal directory.
2204 * automake --output-dir is deprecated.
2205 * The part of the distcheck target that checks whether uninstall actually
2206 removes all installed files has been moved in a separate target,
2207 distuninstallcheck, so it can be overridden easily.
2211 * Support for AM_INIT_GETTEXT([external])
2212 * Bug fixes, including:
2213 - Fix Automake's own `make install' so it works even if `ln' doesn't.
2214 - nobase_ programs and scripts honor --program-transform correctly.
2215 - Erase configure.lineno during `make distclean'.
2216 - Erase YACC and LEX outputs during `make maintainer-clean'.
2219 * Many bug fixes, including:
2220 - Requiring the current version works.
2221 - Fix "$@" portability issues (for Zsh).
2222 - Fix output of dummy dependency files in presence of post-processed
2224 - Don't compute dependencies in background to avoid races with libtool.
2225 - Fix handling of _OBJECTS variables for targets sharing source variables.
2226 - Check dependency mode for Java when AM_PROG_GCJ is used.
2229 * automake --output-dir is deprecated
2230 * Many bug fixes, including:
2231 - Don't choke on AM_LDFLAGS definitions.
2232 - Clean libtool objects from subdirectories.
2233 - Allow configure variables with reserved suffix and unknown prefix
2234 (e.g. AC_SUBST(mumble_LDFLAGS) when 'mumble' is not a target).
2235 - Fix the definition of AUTOMAKE and ACLOCAL in configure.
2238 * Autoconf 2.52 is required.
2239 * automake no longer run libtoolize.
2240 This is the job of autoreconf (from GNU Autoconf).
2241 * `dist' generates all the archive flavors, as did `dist-all'.
2242 * `dist-gzip' generates the Gzip tar file only.
2243 * Combining Automake Makefile conditionals no longer lead to a combinatorial
2244 explosion. Makefile.in's keep a reasonable size.
2245 * AM_FUNC_ERROR_AT_LINE, AM_FUNC_STRTOD, AM_FUNC_OBSTACK, AM_PTRDIFF_T
2246 are no longer shipped, since Autoconf 2.52 provides them (both as AM_
2248 * `#line' of Lex and Yacc files are properly set.
2249 * EXTRA_DIST can contain generated directories.
2250 * Support for dot-less extensions in suffix rules.
2251 * The part of the distcheck target that checks whether distclean actually
2252 cleans all built files has been moved in a separate target, distcleancheck,
2253 so it can be overridden easily.
2254 * `make distcheck' will pass additional options defined in
2255 $(DISTCHECK_CONFIGURE_FLAGS) to configure.
2256 * Fixed CDPATH portability problems, in particular for MacOS X.
2257 * Fixed handling of nobase_ targets.
2258 * Fixed support of implicit rules leading to .lo objects.
2259 * Fixed late inclusion of --add-missing files (e.g. depcomp) in DIST_COMMON
2260 * Added uninstall-hook target
2261 * `AC_INIT AM_INIT_AUTOMAKE(tarname,version)' is an obsolete construct.
2262 You can now use `AC_INIT(pkgname,version) AM_INIT_AUTOMAKE' instead.
2263 (Note that "pkgname" is not "tarname", see the manual for details.)
2264 It is also possible to pass a list of global Automake options as
2265 first argument to this new form of AM_INIT_AUTOMAKE.
2266 * Compiler-based assembler is now called `CCAS'; people expected `AS'
2267 to be a real assembler.
2268 * AM_INIT_AUTOMAKE will set STRIP itself when it needs it. Adding
2269 AC_CHECK_TOOL([STRIP], [strip]) manually is no longer required.
2270 * aclocal and automake are also installed with the version number
2271 appended, and some of the install directory names have changed.
2272 This lets you have multiple versions installed simultaneously.
2273 * Support for parsers and lexers in subdirectories.
2276 * Support for `configure.ac'.
2277 * Support for `else COND', `endif COND' and negated conditions `!COND'.
2278 * `make dist-all' is much faster.
2279 * Allows '@' AC_SUBSTs in macro names.
2280 * Faster AM_INIT_AUTOMAKE (requires update of `missing' script)
2281 * User-side dependency tracking. Developers no longer need GNU make
2283 * Uses DIST_SUBDIRS in some situations when SUBDIRS is conditional
2284 * Most files are correctly handled if they appear in subdirs
2285 For instance, a _DATA file can appear in a subdir
2286 * GNU tar is no longer required for `make dist'
2287 * Added support for `dist_' and `nodist_' prefixes
2288 * Added support for `nobase_' prefix
2289 * Compiled Java support
2290 * Support for per-executable and per-library compilation flags
2294 * Added support for the Fortran 77 programming language.
2295 * Re-indexed the Automake Texinfo manual.
2296 * Added `AM_FOOFLAGS' variable for each compiler invocation;
2297 e.g. AM_CFLAGS can be used in Makefile.am to set C compiler flags
2298 * Support for latest autoconf, including support for objext
2299 * Can now put `.' in SUBDIRS to control build order
2300 * `include' command and `+=' support for macro assignment
2301 * Dependency tracking no long susceptible to deleted header file problem
2302 * Maintainer mode now a conditional. @MAINT@ is now an anachronism.
2307 * Better Cygwin32 support
2308 * Support for suffix rules with _SOURCES variables
2309 * New options `readme-alpha' and `check-news'; Gnits mode sets these
2310 * @LEXLIB@ no longer required when lex source seen
2311 Lex support in `missing', and new lex macro. Update your missing script.
2312 * Built-in support for assembly
2313 * aclocal gives error if `AM_' macro not found
2314 * Passed YFLAGS, not YACCFLAGS, to yacc
2315 * AM_PROG_CC_STDC does not have to come before AC_PROG_CPP
2316 * Dependencies computed as a side effect of compilation
2317 * Preliminary support for Java
2318 * DESTDIR support at "make install" time
2319 * Improved ansi2knr support; you must use the latest ansi2knr.c (included)
2323 * Better DejaGnu support
2324 * Added no-installinfo option
2325 * Added Emacs Lisp support
2326 * Added --no-force option
2327 * Included `aclocal' program
2328 * Automake will now generate rules to regenerate aclocal.m4, if appropriate
2329 * Now uses `AM_' macro names everywhere
2330 * ansi2knr option can have directory prefix (eg `../lib/ansi2knr')
2331 ansi2knr now works correctly on K&R sources
2332 * Better C++, yacc, lex support
2333 * Will compute _DEPENDENCIES variables automatically if not supplied
2334 * Will interpolate $(...) and ${...} when examining contents of a variable
2335 * .deps files now in build directory, not source directory; dependency
2336 handling generally rewritten
2337 * DATA, MANS and BUILT_SOURCES no longer included in distribution
2338 * can now put config.h into a subdir
2339 * Added dist-all target
2340 * Support for install-info program (see texinfo 3.9)
2341 * Support for "yacc -d"
2342 * configure substitutions are automatically discovered and included
2343 in generated Makefile.in
2344 * Special --cygnus mode
2345 * OMIT_DEPENDENCIES can now hold list of dependencies to be omitted
2346 when making distribution. Some dependencies are auto-ignored.
2347 * Changed how libraries are specified in _LIBRARIES variable
2348 * Full libtool support, from Gord Matzigkeit
2349 * No longer have to explicitly touch stamp-h when using AC_CONFIG_HEADER;
2350 AM_CONFIG_HEADER handles it automatically
2351 * Texinfo output files no longer need .info extension
2352 * Added `missing' support
2354 * Conditionals in Makefile.am, from Ian Taylor
2358 * distcheck target runs install and installcheck targets
2359 * Added preliminary support for DejaGnu.
2364 * More libtool fixes from Gord Matzigkeit; libtool support is still
2366 * Added support for jm_MAINTAINER_MODE
2368 * New "distcheck" target
2372 * mkinstalldirs and mdate-sh now appear in directory specified by
2374 * Removed DIST_SUBDIRS, DIST_OTHER
2375 * AC_ARG_PROGRAM only required when an actual program exists
2376 * dist-hook target now run before distribution packaged up; idea from
2377 Dieter Baron. Other hooks exist, too.
2378 * Preliminary (unfinished) support for libtool
2379 * Added short option names.
2380 * Better "dist" support when gluing together multiple packages
2384 * Documentation updates (many from François Pinard)
2385 * strictness `normal' now renamed to `foreign'
2386 * Renamed --install-missing to --add-missing
2387 * Now handles AC_CONFIG_AUX_DIR
2388 * Now handles TESTS macro
2389 * DIST_OTHER renamed to EXTRA_DIST
2390 * DIST_SUBDIRS is deprecated
2391 * @ALLOCA@ and @LIBOBJS@ now work in _LDADD variables
2392 * Better error messages in many cases
2393 * Program names are canonicalized
2394 * Added "check" prefix; from Gord Matzigkeit
2398 * configure.in scanner knows about AC_PATH_XTRA, AC_OUTPUT ":" syntax
2399 * Beginnings of a test suite
2400 * Automatically adds -I options for $(srcdir), ".", and path to config.h
2401 * Doesn't print anything when running
2402 * Beginnings of MAINT_CHARSET support
2403 * Can specify version in AUTOMAKE_OPTIONS
2404 * Most errors recognizable by Emacs' M-x next-error
2405 * Added --verbose option
2406 * All "primary" variables now obsolete; use EXTRA_PRIMARY to supply
2407 configure-generated names
2408 * Required macros now distributed in aclocal.m4
2410 * --strictness=gnu is default
2414 * More sophisticated configure.in scanning; now understands ALLOCA and
2415 LIBOBJS directly, handles AC_CONFIG_HEADER more precisely, etc.
2416 * TEXINFOS and MANS now obsolete; use info_TEXINFOS and man_MANS instead.
2417 * CONFIG_HEADER variable now obsolete
2418 * Can handle multiple Texinfo sources
2419 * Allow hierarchies deeper than 2. From Gord Matzigkeit.
2420 * HEADERS variable no longer needed; now can put .h files directly into
2421 foo_SOURCES variable.
2422 * Automake automatically rebuilds files listed in AC_OUTPUT. The
2423 corresponding ".in" files are included in the distribution.
2426 * Added --gnu and --gnits options
2427 * More standards checking
2429 * Cleaned up 'dist' targets
2430 * Added AUTOMAKE_OPTIONS variable and several options
2431 * Now scans configure.in to get some information (preliminary)
2434 * Works with Perl 4 again
2437 * Added --install-missing option.
2438 * Pretty-prints generated macros and rules
2439 * Comments in Makefile.am are placed more intelligently in Makefile.in
2440 * Generates .PHONY target
2441 * Rule or macro in Makefile.am now overrides contents of Automake file
2442 * Substantial cleanups from François Pinard
2446 * Works with Perl 4 again.
2449 * New uniform naming scheme.
2450 * --strictness option
2452 * '.c' files corresponding to '.y' or '.l' files are automatically
2454 * Many bug fixes and cleanups
2457 * Allow objects to be conditionally included in libraries via lib_LIBADD.
2460 * Bug fixes in 'clean' code.
2461 * Now generates 'installdirs' target.
2462 * man page installation reworked.
2463 * 'make dist' no longer re-creates all Makefile.in's.
2466 * Reimplemented in Perl
2467 * Added --amdir option (for debugging)
2468 * Texinfo support cleaned up.
2469 * Automatic de-ANSI-fication cleaned up.
2470 * Cleaned up 'clean' targets.
2473 * Automatic dependency tracking
2474 * More documentation
2475 * New variables DATA and PACKAGEDATA
2476 * SCRIPTS installed using $(INSTALL_SCRIPT)
2477 * No longer uses double-colon rules
2479 * Changes in advance of internationalization
2483 Copyright (C) 1995-2012 Free Software Foundation, Inc.
2485 This program is free software; you can redistribute it and/or modify
2486 it under the terms of the GNU General Public License as published by
2487 the Free Software Foundation; either version 2, or (at your option)
2490 This program is distributed in the hope that it will be useful,
2491 but WITHOUT ANY WARRANTY; without even the implied warranty of
2492 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
2493 GNU General Public License for more details.
2495 You should have received a copy of the GNU General Public License
2496 along with this program. If not, see <http://www.gnu.org/licenses/>.
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