3 * WARNING: Future backward-incompatibilities!
5 - Future versions of Automake will likely drop support for the
6 long-deprecated 'configure.in' name for the Autoconf input file.
7 You are advised to use the recommended name 'configure.ac' instead.
9 - Support for the "Cygnus-style" trees (as enabled by the 'cygnus'
10 option) will be removed in the next major Automake release (1.13).
12 - The long-obsolete (since automake 1.10) AM_PROG_MKDIR m4 macro will
13 be removed in Automake 1.13. The $(mkdir_p) make variable and the
14 @mkdir_p@ substitution will still remain available (as aliases of
15 $(MKDIR_P)) for the moment, for better backward compatibility.
17 - Autoconf 2.65 or later will be required by the next major Automake
18 version (1.13). Until now, Automake has required Autoconf version
21 - Starting from the next major Automake version (1.13), the rules
22 to build pdf, ps and dvi output from Texinfo input will use the
23 '--build-dir' option by default. Since such an option was only
24 introduced in Texinfo 4.9, this means that Makefiles generated by
25 future Automake versions will require at least that version of
28 - Starting from the next major Automake version (1.13), the parallel
29 testsuite harness (previously only enabled by the 'parallel-tests'
30 option) will become the default one; the older serial testsuite
31 harness will still be available through the use of the 'serial-tests'
34 - The following long-obsolete m4 macros will be removed in the
35 next major Automake version (1.13):
37 AM_PROG_CC_STDC: superseded by AC_PROG_CC since October 2002
38 fp_PROG_CC_STDC: broken alias for AM_PROG_CC_STDC
39 fp_WITH_DMALLOC: old alias for AM_WITH_DMALLOC
40 AM_CONFIG_HEADER: superseded by AC_CONFIG_HEADERS since July 2002
41 ud_PATH_LISPDIR: old alias for AM_PATH_LISPDIR
42 jm_MAINTAINER_MODE: old alias for AM_MAINTAINER_MODE
43 ud_GNU_GETTEXT: old alias for AM_GNU_GETTEXT
44 gm_PROG_LIBTOOL: old alias for AC_PROG_LIBTOOL
45 fp_C_PROTOTYPES: old alias for AM_C_PROTOTYPES (which was part
46 of the now-removed automatic de-ANSI-fication
49 - All the "old alias" macros in 'm4/obsolete.m4' will be removed in
50 the next major Automake version (1.13).
52 - The '--acdir' option of aclocal is deprecated, and will probably
53 be removed in the next major Automake release (1.13). You should
54 use the options '--automake-acdir' and '--system-acdir' instead
55 (which have been introduced in Automake 1.11.2).
57 - The 'missing' script will no longer try to update the timestamp
58 of out-of-date files that require a maintainer-specific tool to be
59 remade, in case the user lacks such a tool (or has a too-old version
60 of it). In fact, starting from Automake 1.13, all it'll do will be
61 giving more useful warnings than a bare "command not found" from a
66 - The AM_PROG_VALAC macro has been enhanced to takes two further
67 optional arguments; it's signature now being
69 AM_PROG_VALAC([MINIMUM-VERSION], [ACTION-IF-FOUND],
70 [ACTION-IF-NOT-FOUND])
72 - By default, AM_PROG_VALAC no longer aborts the configure invocation
73 if the Vala compiler found is too old, but simply prints a warning
74 messages (as it did when the Vala compiler was not found). This
75 should avoid unnecessary difficulties for end users that just want
76 to compile the unmodified, distributed Vala-generated C sources,
77 but happens to have an old Vala compiler in their PATH. This fixes
80 - If no proper Vala compiler is found at configure runtime, AM_PROG_VALAC
81 will set the AC_SUBST'd variable 'VALAC' to 'valac' rather than to ':'.
82 This is a better default, because with it a triggered makefile rule
83 invoking a Vala compilation will clearly fail with an informative error
84 message like "valac: command not found", rather than silently, with
85 the error possibly going unnoticed or triggering harder-to-diagnose
86 fallout failures in later steps.
92 - Automake no longer generates spurious remake rules invoking autoheader
93 to regenerate the template corresponding to header files specified after
94 the first one in AC_CONFIG_HEADERS (automake bug#12495).
96 - When wrapping Microsoft tools, the 'compile' script falls back to
97 finding classic 'libname.a' style libraries when 'name.lib' and
98 'name.dll.lib' aren't available.
100 - Python byte-compilation supports the new layout mandated by PEP-3147,
101 with its __pycache__ directory (automake bug#8847).
103 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
107 * Warnings and deprecations:
109 - Warnings in the 'obsolete' category are enabled by default both in
110 automake and aclocal.
112 * Miscellaneous changes:
114 - Some testsuite weaknesses and spurious failures have been fixed.
116 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
120 * Miscellaneous changes:
122 - The '.m4' files provided by Automake no longer define serial numbers.
123 This should cause no difference in the behaviour of aclocal though.
125 - Some testsuite weaknesses and spurious failures have been fixed.
127 - There is initial support for automatic dependency tracking with the
128 Portland Group C/C++ compilers, thanks to the new new depmode 'pgcc'.
130 Bugs fixed in 1.12.3:
132 * Long-standing bugs:
134 - Instead of renaming only self-references of files (typically for
135 #lines), ylwrap now also renames references to the other generated
136 files. This fixes support for GLR and C++ parsers from Bison (PR
137 automake/491 and automake bug#7648): 'parser.c' now properly
138 #includes 'parser.h' instead of 'y.tab.h'.
140 - Generated files unknown to ylwrap are now preserved. This fixes
141 C++ support for Bison (automake bug#7648): location.hh and the
142 like are no longer discarded.
144 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
148 * Warnings and deprecations:
150 - Automake now issues a warning (in the 'portability' category) if
151 'configure.in' is used instead of 'configure.ac' as the Autoconf
152 input file. Such a warning will also be present in the next
153 Autoconf version (2.70).
157 - Recursive cleaning rules descends into the $(SUBDIRS) in the natural
158 order (as done by the other recursive rules), rather than in the
159 inverse order. They used to do that in order to work a round a
160 limitation in an older implementation of the automatic dependency
161 tracking support, but that limitation had been lifted years ago
162 already, when the automatic dependency tracking based on side-effects
163 of compilation had been introduced.
165 - Cleaning rules for compiled objects (both "plain" and libtool) work
166 better when subdir objects are involved, not triggering a distinct
167 'rm' invocation for each such object. They do so by removing *any*
168 compiled object file that is in the same directory of a subdir
169 object. See automake bug#10697.
171 * Silent rules support:
173 - A new predefined $(AM_V_P) make variable is provided; it expands
174 to a shell conditional that can be used in recipes to know whether
175 make is being run in silent or verbose mode.
177 Bugs fixed in 1.12.2:
179 * SECURITY VULNERABILITIES!
181 - The 'distcheck' recipe no longer grants temporary world-write
182 permissions on the extracted distdir. Even if such rights were
183 only granted for a vanishingly small time window, the implied
184 race condition proved to be enough to allow a local attacker
185 to run arbitrary code with the privileges of the user running
186 "make distcheck". This is CVE-2012-3386.
188 * Long-standing bugs:
190 - The "recheck" targets behaves better in the face of build failures
191 related to previously failed tests. For example, if a test is a
192 compiled program that must be rerun by "make recheck", and its
193 compilation fails, it will still be rerun by further "make recheck"
194 invocations. See automake bug#11791.
196 * Bugs introduced by 1.12.1:
198 - Automake provides once again the '$(mkdir_p)' make variable and the
199 '@mkdir_p@' substitution (both as simple aliases for '$(MKDIR_P)'),
200 for better backward-compatibility.
202 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
206 * New supported languages:
208 - Support for Objective C++ has been added; it should work similarly to
209 the support for Objective C.
211 * Deprecated obsolescent features:
213 - Use of the long-deprecated two- and three-arguments invocation forms
214 of the AM_INIT_AUTOMAKE macro now elicits a warning in the 'obsolete'
215 category. Starting from some future major Automake release (likely
216 post-1.13), such usages will no longer be allowed.
218 - Support for the "Cygnus-style" trees (enabled by the 'cygnus' option) is
219 now deprecated (its use triggers a warning in the 'obsolete' category).
220 It will be removed in the next major Automake release (1.13).
222 - The long-obsolete (since 1.10) automake-provided $(mkdir_p) make
223 variable, @mkdir_p@ configure-time substitution and AM_PROG_MKDIR
224 m4 macro are deprecated, eliciting a warning in the 'obsolete'
227 * Miscellaneous changes:
229 - The Automake test cases now require a proper POSIX-conforming shell.
230 Older non-POSIX Bourne shells (like Solaris 10 /bin/sh) will no longer
231 be accepted. In most cases, the user shouldn't have to specify such
232 POSIX shell explicitly, since it will be looked up at configure time.
233 Still, when this lookup fails, or when the user wants to override its
234 conclusion, the variable 'AM_TEST_RUNNER_SHELL' can be used (pointing
235 to the shell that will be used to run the Automake test cases).
237 Bugs fixed in 1.12.1:
239 * Bugs introduced by 1.12:
241 - Several weaknesses in Automake's own build system and test suite
244 * Bugs introduced by 1.11.3:
246 - When given non-option arguments, aclocal rejects them, instead of
247 silently ignoring them.
249 * Long-standing bugs:
251 - When the 'color-tests' option is in use, forcing of colored testsuite
252 output through "AM_COLOR_TESTS=always" works even if the terminal is
253 a non-ANSI one, i.e., if the TERM environment variable has a value of
256 - Several inefficiencies and poor performances in the implementation
257 of the parallel-tests 'check' and 'recheck' targets have been fixed.
259 - The post-processing of output "#line" directives done the ylwrap
260 script is more faithful w.r.t. files in a subdirectory; for example,
261 if the processed file is "src/grammar.y", ylwrap will correctly
262 produce directives like:
263 #line 7 "src/grammar.y"
268 * Bugs with new Perl versions:
270 - Aclocal works correctly with perl 5.16.0 (automake bug#11543).
272 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
276 * Obsolete features removed:
278 - The never documented nor truly used script 'acinstall' has been
281 - Support for automatic de-ANSI-fication has been removed.
283 - The support for the "obscure" multilib feature has been removed
284 from Automake core (but remains available in the 'contrib/'
285 directory of the Automake distribution).
287 - Support for ".log -> .html" conversion and the check-html and
288 recheck-html targets has been removed from Automake core (but
289 remains available in the 'contrib/' directory of the Automake
292 - The deprecated 'lzma' compression format for distribution archives
293 has been removed, in favor of 'xz' and 'lzip'.
295 - The obsolete AM_WITH_REGEX macro has been removed.
297 - The long-deprecated options '--output-dir', '--Werror' and
298 '--Wno-error' have been removed.
300 - The chapter on the history of Automake has been moved out of the
301 reference manual, into a new dedicated Texinfo file.
305 - New 'cscope' target to build a cscope database for the source tree.
307 * Changes to Automake-generated testsuite harnesses:
309 - The new automake option 'serial-tests' has been introduced. It can
310 be used to explicitly instruct automake to use the older serial
311 testsuite harness. This is still the default at the moment, but it
312 might change in future versions.
314 - The 'recheck' target (provided by the parallel testsuite harness) now
315 depends on the 'all' target. This allows for a better user-experience
316 in test-driven development. See automake bug#11252.
318 - Test scripts that exit with status 99 to signal an "hard error" (e.g.,
319 and unexpected or internal error, or a failure to set up the test case
320 scenario) have their outcome reported as an 'ERROR' now. Previous
321 versions of automake reported such an outcome as a 'FAIL' (the only
322 difference with normal failures being that hard errors were counted
323 as failures even when the test originating them was listed in
326 - The testsuite summary displayed by the parallel-test harness has a
327 completely new format, that always list the numbers of passed, failed,
328 xfailed, xpassed, skipped and errored tests, even when these numbers
329 are zero (but using smart coloring when the color-tests option is in
332 - The default testsuite driver offered by the 'parallel-tests' option is
333 now implemented (partly at least) with the help of automake-provided
334 auxiliary scripts (e.g., 'test-driver'), instead of relying entirely
335 on code in the generated Makefile.in.
336 This has two noteworthy implications. The first one is that projects
337 using the 'parallel-tests' option should now either run automake with
338 the '--add-missing' option, or manually copy the 'test-driver' script
339 into their tree. The second, and more important, implication is that
340 now, when the 'parallel-tests' option is in use, TESTS_ENVIRONMENT can
341 no longer be used to define a test runner, and the command specified
342 in LOG_COMPILER (and <ext>_LOG_COMPILER) must be a *real* executable
343 program or script. For example, this is still a valid usage (albeit
346 TESTS_ENVIRONMENT = \
347 if test -n '$(STRICT_TESTS)'; then \
348 maybe_errexit='-e'; \
352 LOG_COMPILER = $(SHELL) $$maybe_errexit
354 OTOH, this is no longer a valid usage:
356 TESTS_ENVIRONMENT = \
357 $(SHELL) `test -n '$(STRICT_TESTS_CHECKING)' && echo ' -e'`
361 TESTS_ENVIRONMENT = \
362 run_with_perl_or_shell () \
364 if grep -q '^#!.*perl' $$1; then
370 LOG_COMPILER = run_with_perl_or_shell
372 - The package authors can now use customary testsuite drivers within
373 the framework provided by the 'parallel-tests' testsuite harness.
374 Consistently with the existing syntax, this can be done by defining
375 special makefile variables 'LOG_DRIVER' and '<ext>_LOG_DRIVER'.
377 - A new developer-reserved variable 'AM_TESTS_FD_REDIRECT' can be used
378 to redirect/define file descriptors used by the test scripts.
380 - The parallel-tests harness generates now, in addition the '.log' files
381 holding the output produced by the test scripts, a new set of '.trs'
382 files, holding "metadata" derived by the execution of the test scripts;
383 among such metadata are the outcomes of the test cases run by a script.
385 - Initial and still experimental support for the TAP test protocol is
388 * Changes to Yacc and Lex support:
390 - C source and header files derived from non-distributed Yacc and/or
391 Lex sources are now removed by a simple "make clean" (while they were
392 previously removed only by "make maintainer-clean").
394 - Slightly backward-incompatible change, relevant only for use of Yacc
395 with C++: the extensions of the header files produced by the Yacc
396 rules are now modelled after the extension of the corresponding
397 sources. For example, yacc files named "foo.y++" and "bar.yy" will
398 produce header files named "foo.h++" and "bar.hh" respectively, where
399 they would have previously produced header files named simply "foo.h"
400 and "bar.h". This change offers better compatibility with 'bison -o'.
402 * Miscellaneous changes:
404 - The AM_PROG_VALAC macro now causes configure to exit with status 77,
405 rather than 1, if the vala compiler found is too old.
407 - The build system of Automake itself now avoids the use of make
408 recursion as much as possible.
410 - Automake now prefers to quote 'like this' or "like this", rather
411 than `like this', in diagnostic message and generated Makefiles,
412 to accommodate the new GNU Coding Standards recommendations.
414 - Automake has a new option '--print-libdir' that prints the path of the
415 directory containing the Automake-provided scripts and data files.
417 - The 'dist' and 'dist-all' targets now can run compressors in parallel.
419 - The rules to create pdf, dvi and ps output from Texinfo files now
420 works better with modern 'texi2dvi' script, by explicitly passing
421 it the '--clean' option to ensure stray auxiliary files are not
422 left to clutter the build directory.
424 - Automake can now generate silenced rules for texinfo outputs.
426 - Some auxiliary files that are automatically distributed by Automake
427 (e.g., 'install-sh', or the 'depcomp' script for packages compiling
428 C sources) might now be listed in the DIST_COMMON variable in many
429 Makefile.in files, rather than in the top-level one.
431 - Messages of types warning or error from 'automake' and 'aclocal'
432 are now prefixed with the respective type, and presence of -Werror
435 - Automake's early configure-time sanity check now tries to avoid
436 sleeping for a second, which slowed down cached configure runs
437 noticeably. In that case, it will check back at the end of the
438 configure script to ensure that at least one second has passed, to
439 avoid time stamp issues with makefile rules rerunning autotools
442 - The warnings in the category 'extra-portability' are now enabled by
443 '-Wall'. In previous versions, one has to use '-Wextra-portability'
448 - Various minor bugfixes for recent or long-standing bugs.
450 * Bugs introduced by 1.11:
452 - The AM_COND_IF macro also works if the shell expression for the
453 conditional is no longer valid for the condition.
455 - The automake-provided parallel testsuite harness no longer fails
456 with BSD make used in parallel mode when there are test scripts in
457 a subdirectory, like in:
459 TESTS = sub/foo.test sub/bar.test
461 * Long-standing bugs:
463 - Automake's own build system finally have a real "installcheck" target.
465 - Vala-related cleanup rules are now more complete, and work better in
468 - Files listed with the AC_REQUIRE_AUX_FILE macro in configure.ac are
469 now automatically distributed also if the directory of the auxiliary
470 files coincides with the top-level directory.
472 - Automake now detects the presence of the '-d' flag in the various
473 '*YFLAGS' variables even when their definitions involve indirections
474 through other variables, such as in:
476 AM_YFLAGS = $(foo_opts)
478 - Automake now complains if a '*YFLAGS' variable has any conditional
479 content, not only a conditional definition.
481 - Explicit enabling and/or disabling of Automake warning categories
482 through the '-W...' options now always takes precedence over the
483 implicit warning level implied by Automake strictness (foreign, gnu
484 or gnits), regardless of the order in which such strictness and
485 warning flags appear. For example, a setting like:
486 AUTOMAKE_OPTIONS = -Wall --foreign
487 will cause the warnings in category 'portability' to be enabled, even
488 if those warnings are by default disabled in 'foreign' strictness.
490 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
492 Bugs fixed in 1.11.5:
494 * Bugs introduced by 1.11.3:
496 - Vala files with '.vapi' extension are now recognized and handled
497 correctly again. See automake bug#11222.
499 - Vala support work again for projects that contain some program
500 built from '.vala' (and possibly '.c') sources and some other
501 program built from '.c' sources *only*. See automake bug#11229.
503 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
507 * Miscellaneous changes:
509 - The 'ar-lib' script now ignores the "s" (symbol index) and "S" (no
510 symbol index) modifiers as well as the "s" action, as the symbol index
511 is created unconditionally by Microsoft lib. Also, the "q" (quick)
512 action is now a synonym for "r" (replace). Also, the script has been
513 ignoring the "v" (verbose) modifier already since Automake 1.11.3.
515 - When the 'compile' script is used to wrap MSVC, it now accepts an
516 optional space between the -I, -L and -l options and their respective
517 arguments, for better POSIX compliance.
519 - There is an initial, experimental support for automatic dependency
520 tracking with tcc (the Tiny C Compiler). Its associated depmode is
521 currently recognized as "icc" (but this and other details are likely
522 to change in future versions).
524 - Automatic dependency tracking now works also with the IBM XL C/C++
525 compilers, thanks to the new new depmode 'xlc'.
527 Bugs fixed in 1.11.4:
529 * Bugs introduced by 1.11.2:
531 - A definition of 'noinst_PYTHON' before 'python_PYTHON' (or similar)
532 no longer cause spurious failures upon "make install".
534 - The user can now instruct the 'uninstall-info' rule not to update
535 the '${infodir}/dir' file by exporting the environment variable
536 'AM_UPDATE_INFO_DIR' to the value "no". This is done for consistency
537 with how the 'install-info' rule operates since automake 1.11.2.
539 * Long-standing bugs:
541 - It is now possible for a foo_SOURCES variable to hold Vala sources
542 together with C header files, as well as with sources and headers for
543 other supported languages (e.g., C++). Previously, only mixing C and
544 Vala sources was supported.
546 - If "aclocal --install" is used, and the first directory specified with
547 '-I' is non-existent, aclocal will now create it before trying to copy
550 - An empty declaration of a "foo_PRIMARY" no longer cause the generated
551 install rules to create an empty $(foodir) directory; for example, if
552 Makefile.am contains something like:
556 pkglibexec_SCRIPTS += bar.sh
559 the $(pkglibexec) directory will not be created upon "make install".
561 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
565 * Miscellaneous changes:
567 - Automake's own build system is more silent by default, making use of
568 the 'silent-rules' option.
570 - The master copy of the 'gnupload' script is now maintained in gnulib,
573 - The 'missing' script no longer tries to wrap calls to 'tar'.
575 - "make dist" no longer wraps 'tar' invocations with the 'missing'
576 script. Similarly, the obsolescent variable '$(AMTAR)' (which you
577 shouldn't be using BTW ;-) no longer invokes the 'missing' script
578 to wrap tar, but simply invokes the 'tar' program itself.
580 - "make dist" can now create lzip-compressed tarballs.
582 - In the Automake info documentation, the Top node and the nodes about
583 the invocation of the automake and aclocal programs have been renamed;
584 now, calling "info automake" will open the Top node, while calling
585 "info automake-invocation" and "info aclocal-invocation" will access
586 the nodes about the invocation of respectively automake and aclocal.
588 - Automake is now distributed as a gzip-compressed and an xz-compressed
589 tarball. Previously, bzip2 was used instead of xz.
591 - The last relics of Python 1.5 support have been removed from the
592 AM_PATH_PYTHON macro.
594 - For programs and libraries, automake now detects EXTRA_foo_DEPENDENCIES
595 and adds them to the normal list of dependencies, but without
596 overwriting the foo_DEPENDENCIES variable, which is normally computed
599 Bugs fixed in 1.11.3:
601 * Bugs introduced by 1.11.2:
603 - Automake now correctly recognizes the prefix/primary combination
604 'pkglibexec_SCRIPTS' as valid.
606 - The parallel-tests harness no longer trips on sed implementations
607 with stricter limits on the length of input lines (problem seen at
610 * Long-standing bugs:
612 - The "deleted header file problem" for *.am files is avoided by stub
613 rules. This allows 'make' to trigger a rerun of 'automake' also if
614 some previously needed '.am' file has been removed.
616 - The 'silent-rules' option now generates working makefiles even
617 for the uncommon 'make' implementations that do not support the
618 nested-variables extension to POSIX 2008. For such 'make'
619 implementations, whether a build is silent is determined at
620 configure time, and cannot be overridden at make time with
621 "make V=0" or "make V=1".
623 - Vala support now works better in VPATH setups.
625 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
629 * Changes to aclocal:
631 - The `--acdir' option is deprecated. Now you should use the new options
632 `--automake-acdir' and `--system-acdir' instead.
634 - The `ACLOCAL_PATH' environment variable is now interpreted as a
635 colon-separated list of additional directories to search after the
636 automake internal acdir (by default ${prefix}/share/aclocal-APIVERSION)
637 and before the system acdir (by default ${prefix}/share/aclocal).
639 * Miscellaneous changes:
641 - The Automake support for automatic de-ANSI-fication has been
642 deprecated. It will probably be removed in the next major Automake
645 - The `lzma' compression scheme and associated automake option `dist-lzma'
646 is obsoleted by `xz' and `dist-xz' due to upstream changes.
648 - You may adjust the compression options used in dist-xz and dist-bzip2.
649 The default is now merely -e for xz, but still -9 for bzip; you may
650 specify a different level via the XZ_OPT and BZIP2 envvars respectively.
651 E.g., "make dist-xz XZ_OPT=-7" or "make dist-bzip2 BZIP2=-5"
653 - The `compile' script now converts some options for MSVC for a better
654 user experience. Similarly, the new `ar-lib' script wraps Microsoft lib.
656 - The py-compile script now accepts empty arguments passed to the options
657 `--destdir' and `--basedir', and complains about unrecognized options.
658 Moreover, a non-option argument or a special `--' argument terminates
661 - A developer that needs to pass specific flags to configure at "make
662 distcheck" time can now, and indeed is advised to, do so by defining
663 the developer-reserved makefile variable AM_DISTCHECK_CONFIGURE_FLAGS,
664 instead of the old DISTCHECK_CONFIGURE_FLAGS.
665 The DISTCHECK_CONFIGURE_FLAGS variable should now be reserved for the
666 user; still, the old Makefile.am files that used to define it will
667 still continue to work as before.
669 - New macro AM_PROG_AR that looks for an archiver and wraps it in the new
670 'ar-lib' auxiliary script if the selected archiver is Microsoft lib.
671 This new macro is required for LIBRARIES and LTLIBRARIES when automake
672 is run with -Wextra-portability and -Werror.
674 - When using DejaGnu-based testsuites, the user can extend the `site.exp'
675 file generated by automake-provided rules by defining the special make
676 variable `$(EXTRA_DEJAGNU_SITE_CONFIG)'.
678 - The `install-info' rule can now be instructed not to create/update
679 the `${infodir}/dir' file, by exporting the new environment variable
680 `AM_UPDATE_INFO_DIR' to the value "no".
682 Bugs fixed in 1.11.2:
684 * Bugs introduced by 1.11:
686 - The parallel-tests driver no longer produces erroneous results with
687 Tru64/OSF 5.1 sh upon unreadable log files.
689 - The `parallel-tests' test driver does not report spurious successes
690 when used with concurrent FreeBSD make (e.g., "make check -j3").
692 - When the parallel-tests driver is in use, automake now explicitly
693 rejects invalid entries and conditional contents in TEST_EXTENSIONS,
694 instead of issuing confusing and apparently unrelated error messages
695 (e.g., "non-POSIX variable name", "bad characters in variable name",
696 or "redefinition of TEST_EXTENSIONS), or even, in some situations,
697 silently producing broken `Makefile.in' files.
699 - The `silent-rules' option now truly silences all compile rules, even
700 when dependency tracking is disabled. Also, when `silent-rules' is
701 not used, `make' output no longer contains spurious backslash-only
702 lines, thus once again matching what Automake did before 1.11.
704 - The AM_COND_IF macro also works if the shell expression for the
705 conditional is no longer valid for the condition.
707 * Long-standing bugs:
709 - The order of Yacc and Lex flags is fixed to be consistent with other
710 languages: $(AM_YFLAGS) comes before $(YFLAGS), and $(AM_LFLAGS) before
711 $(LFLAGS), so that the user variables override the developer variables.
713 - "make distcheck" now correctly complains also when "make uninstall"
714 leaves one and only one file installed in $(prefix).
716 - A "make uninstall" issued before a "make install", or after a mere
717 "make install-data" or a mere "make install-exec" does not spuriously
720 - Automake now warns about more primary/directory invalid combinations,
721 such as "doc_LIBRARIES" or "pkglib_PROGRAMS".
723 - Rules generated by Automake now try harder to not change any files when
724 `make -n' is invoked. Fixes include compilation of Emacs Lisp, Vala, or
725 Yacc source files and the rule to update config.h.
727 - Several scripts and the parallel-tests testsuite driver now exit with
728 the right exit status upon receiving a signal.
730 - A per-Makefile.am setting of -Werror does not erroneously carry over
731 to the handling of other Makefile.am files.
733 - The code for automatic dependency tracking works around a Solaris
734 make bug triggered by sources containing repeated slashes when the
735 `subdir-objects' option was used.
737 - The makedepend and hp depmodes now work better with VPATH builds.
739 - Java sources specified with check_JAVA are no longer compiled for
740 "make all", but only for "make check".
742 - An usage like "java_JAVA = foo.java" will now cause Automake to warn
743 and error out if `javadir' is undefined, instead of silently producing
744 a broken Makefile.in.
746 - aclocal and automake now honour the configure-time definitions of
747 AUTOCONF and AUTOM4TE when they spawn autoconf or autom4te processes.
749 - The `install-info' recipe no longer tries to guess whether the
750 `install-info' program is from Debian or from GNU, and adaptively
751 change its behaviour; this has proven to be frail and easy to
754 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
756 Bugs fixed in 1.11.1:
758 - Lots of minor bugfixes.
760 * Bugs introduced by 1.11:
762 - The `parallel-tests' test driver works around a GNU make 3.80 bug with
763 trailing white space in the test list (`TESTS = foo $(EMPTY)').
765 * Long standing bugs:
767 - On Darwin 9, `pythondir' and `pyexecdir' pointed below `/Library/Python'
768 even if the `--prefix' argument pointed outside of a system directory.
769 AM_PATH_PYTHON has been fixed to ignore the value returned from python's
770 `get_python_lib' function if it points outside the configured prefix,
771 unless the `--prefix' argument was either `/usr' or below `/System'.
773 - The testsuite does not try to change the mode of `ltmain.sh' files from
774 a Libtool installation (symlinked to test directories) any more.
776 - AM_PROG_GCJ uses AC_CHECK_TOOLS to look for `gcj' now, so that prefixed
777 tools are preferred in a cross-compile setup.
779 - The distribution is tarred up with mode 755 now by the `dist*' targets.
780 This fixes a race condition where untrusted users could modify files
781 in the $(PACKAGE)-$(VERSION) distdir before packing if the toplevel
782 build directory was world-searchable. This is CVE-2009-4029.
784 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
788 * Version requirements:
790 - Autoconf 2.62 or greater is required.
792 * Changes to aclocal:
794 - The autoconf version check implemented by aclocal in aclocal.m4
795 (and new in Automake 1.10) is degraded to a warning. This helps
796 in the common case where the Autoconf versions used are compatible.
798 * Changes to automake:
800 - The automake program can run multiple threads for creating most
801 Makefile.in files concurrently, if at least Perl 5.7.2 is available
802 with interpreter-based threads enabled. Set the environment variable
803 AUTOMAKE_JOBS to the maximum number of threads to use, in order to
804 enable this experimental feature.
806 * Changes to Libtool support:
808 - Libtool generic flags are now passed to the install and uninstall
811 - distcheck works with Libtool 2.x even when LT_OUTPUT is used, as
812 config.lt is removed correctly now.
816 - subdir-object mode works now with Fortran (F77, FC, preprocessed
817 Fortran, and Ratfor).
819 - For files with extension .f90, .f95, .f03, or .f08, the flag
820 $(FCFLAGS_f[09]x) computed by AC_FC_SRCEXT is now used in compile rules.
822 - Files with extension .sx are also treated as preprocessed assembler.
824 - The default source file extension (.c) can be overridden with
825 AM_DEFAULT_SOURCE_EXT now.
827 - Python 3.0 is supported now, Python releases prior to 2.0 are no
830 - AM_PATH_PYTHON honors python's idea about the site directory.
832 - There is initial support for the Vala programming language, when using
835 * Miscellaneous changes:
837 - Automake development is done in a git repository on Savannah now, see
839 http://git.sv.gnu.org/gitweb/?p=automake.git
841 A read-only CVS mirror is provided at
843 cvs -d :pserver:anonymous@pserver.git.sv.gnu.org:/automake.git \
844 checkout -d automake HEAD
846 - "make dist" can now create xz-compressed tarballs,
847 as well as (deprecated?) lzma-compressed tarballs.
849 - `automake --add-missing' will by default install the GPLv3 file as
850 COPYING if it is missing. It will also warn that the license file
851 should be added to source control. Note that Automake will never
852 overwrite an existing COPYING file, even when the `--force-missing'
855 - The manual is now distributed under the terms of the GNU FDL 1.3.
857 - Automake ships and installs man pages for automake and aclocal now.
859 - New shorthand `$(pkglibexecdir)' for `$(libexecdir)/@PACKAGE@'.
861 - install-sh supports -C, which does not update the installed file
862 (and its time stamps) if the contents did not change.
864 - The `gnupload' script has been revamped.
866 - The `depcomp' and `compile' scripts now work with MSVC under MSYS.
868 - The targets `install' and `uninstall' are more efficient now, in that
869 for example multiple files from one Automake variable such as
870 `bin_SCRIPTS' are copied in one `install' (or `libtool --mode=install')
871 invocation if they do not have to be renamed.
873 Both install and uninstall may sometimes enter (`cd' into) the target
874 installation directory now, when no build-local scripts are used.
876 Both install and uninstall do not fail anymore but do nothing if an
877 installation directory variable like `bindir' is set to the empty string.
879 For built-in rules, `make install' now fails reliably if installation
880 of a file failed. Conversely, `make uninstall' even succeeds when
881 issued multiple times.
883 These changes may need some adjustments from users: For example,
884 some `install' programs refuse to install multiple copies of the
885 same file in one invocation, so you may need to remove duplicate
886 entries from file lists.
888 Also, within one set of files, say, nobase_data_DATA, the order of
889 installation may be changed, or even unstable among different hosts,
890 due to the use of associative arrays in awk. The increased use of
891 awk matches a similar move in Autoconf to provide for better scaling.
893 Further, most undocumented per-rule install command variables such as
894 binSCRIPT_INSTALL have been removed because they are not needed any
895 more. Packages which use them should be using the appropriate one of
896 INSTALL_{DATA,PROGRAM,SCRIPT} or their install_sh_{DATA,PROGRAM,SCRIPT}
897 counterpart, depending on the type of files and the need for automatic
898 target directory creation.
900 - The "deleted header file problem" for *.m4 files is avoided by
901 stub rules. This allows `make' to trigger a rerun of `aclocal'
902 also if some previously needed macro file has been removed.
904 - Rebuild rules now also work for a removed `subdir/Makefile.in' in
905 an otherwise up to date tree.
907 - The `color-tests' option causes colored test result output on terminals.
909 - The `parallel-tests' option enables a new test driver that allows for
910 parallel test execution, inter-test dependencies, lazy test execution
911 for unit-testing, re-testing only failed tests, and formatted result output
912 as RST (reStructuredText) and HTML. Enabling this option may require some
913 changes to your test suite setup; see the manual for details.
915 - The `silent-rules' option enables Linux kernel-style silent build output.
916 This option requires the widely supported but non-POSIX `make' feature
917 of recursive variable expansion, so do not use it if your package needs
918 to build with `make' implementations that do not support it.
920 To enable less verbose build output, the developer has to use the Automake
921 option `silent-rules' in `AM_INIT_AUTOMAKE', or call the `AM_SILENT_RULES'
922 macro. The user may then set the default verbosity by passing the
923 `--enable-silent-rules' option to `configure'. At `make' run time, this
924 default may be overridden using `make V=0' for less verbose, and `make V=1'
925 for backward-compatible verbose output.
927 - New prefix `notrans_' for manpages which should not be transformed
928 by --program-transform.
930 - New macro AM_COND_IF for conditional evaluation and conditional
933 - For AC_CONFIG_LINKS, if source and destination are equal, do not
934 remove the file in a non-VPATH build. Such setups work with Autoconf
937 - AM_MAINTAINER_MODE now allows for an optional argument specifying
940 - AM_SUBST_NOTMAKE may prevent substitution of AC_SUBSTed variables,
941 useful especially for multi-line values.
943 - Automake's early configure-time sanity check now diagnoses an
944 unsafe absolute source directory name and makes configure fail.
946 - The Automake macros and rules cope better with whitespace in the
947 current directory name, as long as the relative path to `configure'
948 does not contain whitespace. To this end, the values of `$(MISSING)'
949 and `$(install_sh)' may contain suitable quoting, and their expansion
950 might need `eval'uation if used outside of a makefile. These
951 undocumented variables may be used in several documented macros such
952 as $(AUTOCONF) or $(MAKEINFO).
956 * Long-standing bugs:
958 - Fix aix dependency tracking for libtool objects.
960 - Work around AIX sh quoting issue in AC_PROG_CC_C_O, leading to
961 unnecessary use of the `compile' script.
963 - For nobase_*_LTLIBRARIES with nonempty directory components, the
964 correct `-rpath' argument is used now.
966 - `config.status --file=Makefile depfiles' now also works with the
967 extra quoting used internally by Autoconf 2.62 and newer
968 (it used to work only without the `--file=' bit).
970 - The `missing' script works better with versioned tool names.
972 - Semantics for `missing help2man' have been revamped:
974 Previously, if `help2man' was not present, `missing help2man' would have
975 the following semantics: if some man page was out of date but present, then
976 a warning would be printed, but the exit status was 0. If the man page was
977 not present at all, then `missing' would create a replacement man page
978 containing an error message, and exit with a status of 2. This does not play
979 well with `make': the next run will see this particular man page as being up
980 to date, and will only error out on the next generated man page, if any;
981 repeat until all pages are done. This was not desirable.
983 These are the new semantics: if some man page is not present, and help2man
984 is not either, then `missing' will warn and generate the replacement page
985 containing the error message, but exit successfully. However, `make dist'
986 will ensure that no such bogus man pages are packaged into a tarball.
988 - Targets provided by automake behave better with `make -n', in that they
989 take care not to create files.
991 - `config.status Makefile... depfiles' works fine again in the presence of
992 disabled dependency tracking.
994 - The default no-op recursive rules for these targets also work with BSD make
995 now: html, install-html, install-dvi, install-pdf, install-pdf, install-info.
997 - `make distcheck' works also when both a directory and some file below it
998 have been added to a distribution variable, such as EXTRA_DIST or *_SOURCES.
1000 - Texinfo dvi, ps, pdf, and html output files are not removed upon
1001 `make mostlyclean' any more; only the LaTeX by-products are.
1003 - Renamed objects also work with the `subdir-objects' option and
1004 source file languages which Automake does not know itself.
1006 - `automake' now correctly complains about variable assignments which are
1007 preceded by a comment, extend over multiple lines with backslash-escaped
1008 newlines, and end in a comment sign. Previous versions would silently
1009 and wrongly ignore such assignments completely.
1011 * Bugs introduced by 1.10:
1013 - Fix output of dummy dependency files in presence of post-processed
1014 Makefile.in's again, but also cope with long lines.
1016 - $(EXEEXT) is automatically appended to filenames of XFAIL_TESTS
1017 that have been declared as programs in the same Makefile.
1018 This is for consistency with the analogous change to TESTS in 1.10.
1020 - Fix order of standard includes to again be `-I. -I$(srcdir)',
1021 followed by directories containing config headers.
1023 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1027 * Version requirements:
1029 - Autoconf 2.60 or greater is required.
1031 - Perl 5.6 or greater is required.
1033 * Changes to aclocal:
1035 - aclocal now also supports -Wmumble and -Wno-mumble options.
1037 - `dirlist' entries (for the aclocal search path) may use shell
1038 wildcards such as `*', `?', or `[...]'.
1040 - aclocal supports an --install option that will cause system-wide
1041 third-party macros to be installed in the local directory
1042 specified with the first -I flag. This option also uses #serial
1043 lines in M4 files to upgrade local macros.
1045 The new aclocal options --dry-run and --diff help to review changes
1046 before they are installed.
1048 - aclocal now outputs an autoconf version check in aclocal.m4 in
1049 projects using automake.
1051 For a few years, automake and aclocal have been calling autoconf
1052 (or its underlying engine autom4te) to accurately retrieve the
1053 data they need from configure.ac and its siblings. Doing so can
1054 only work if all autotools use the same version of autoconf. For
1055 instance a Makefile.in generated by automake for one version of
1056 autoconf may stop working if configure is regenerated with another
1057 version of autoconf, and vice versa.
1059 This new version check ensures that the whole build system has
1060 been generated using the same autoconf version.
1062 * Support for new Autoconf macros:
1064 - The new AC_REQUIRE_AUX_FILE Autoconf macro is supported.
1066 - If `subdir-objects' is set, and AC_CONFIG_LIBOBJ_DIR is specified,
1067 $(LIBOBJS), $(LTLIBOBJS), $(ALLOCA), and $(LTALLOCA) can be used
1068 in different directories. However, only one instance of such a
1069 library objects directory is supported.
1071 * Change to Libtool support:
1073 - Libtool generic flags (those that go before the --mode=MODE option)
1074 can be specified using AM_LIBTOOLFLAGS and target_LIBTOOLFLAGS.
1076 * Yacc and Lex changes:
1078 - The rebuild rules for distributed Yacc and Lex output will avoid
1079 overwriting existing files if AM_MAINTAINER_MODE and maintainer-mode
1082 - ylwrap is now always used for lex and yacc source files,
1083 regardless of whether there is more than one source per directory.
1085 * Languages changes:
1087 - Preprocessed assembler (*.S) compilation now honors CPPFLAGS,
1088 AM_CPPFLAGS and per-target _CPPFLAGS, and supports dependency
1089 tracking, unlike non-preprocessed assembler (*.s).
1091 - subdir-object mode works now with Assembler. Automake assumes
1092 that the compiler understands `-c -o'.
1094 - Preprocessed assembler (*.S) compilation now also honors
1095 $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES).
1097 - Improved support for Objective C:
1098 - Autoconf's new AC_PROG_OBJC will enable automatic dependency tracking.
1099 - A new section of the manual documents the support.
1101 - New support for Unified Parallel C:
1102 - AM_PROG_UPC looks for a UPC compiler.
1103 - A new section of the manual documents the support.
1105 - Per-target flags are now correctly handled in link rules.
1107 For instance maude_CFLAGS correctly overrides AM_CFLAGS; likewise
1108 for maude_LDFLAGS and AM_LDFLAGS. Previous versions bogusly
1109 preferred AM_CFLAGS over maude_CFLAGS while linking, and they
1110 used both AM_LDFLAGS and maude_LDFLAGS on the same link command.
1112 The fix for compiler flags (i.e., using maude_CFLAGS instead of
1113 AM_CFLAGS) should not hurt any package since that is how _CFLAGS
1114 is expected to work (and actually works during compilation).
1116 However using maude_LDFLAGS "instead of" AM_LDFLAGS rather than
1117 "in addition to" breaks backward compatibility with older versions.
1118 If your package used both variables, as in
1120 AM_LDFLAGS = common flags
1121 bin_PROGRAMS = a b c
1122 a_LDFLAGS = more flags
1125 and assumed *_LDFLAGS would sum up, you should rewrite it as
1127 AM_LDFLAGS = common flags
1128 bin_PROGRAMS = a b c
1129 a_LDFLAGS = $(AM_LDFLAGS) more flags
1132 This new behavior of *_LDFLAGS is more coherent with other
1133 per-target variables, and the way *_LDFLAGS variables were
1134 considered internally.
1136 * New installation targets:
1138 - New targets mandated by GNU Coding Standards:
1143 By default they will only install Texinfo manuals.
1144 You can customize them with *-local variants:
1150 - The undocumented recursive target `uninstall-info' no longer exists.
1151 (`uninstall' is in charge of removing all possible documentation
1152 flavors, including optional formats such as dvi, ps, or info even
1153 when `no-installinfo' is used.)
1155 * Miscellaneous changes:
1157 - Automake no longer complains if input files for AC_CONFIG_FILES
1158 are specified using shell variables.
1160 - clean, distribution, or rebuild rules are normally disabled for
1161 inputs and outputs of AC_CONFIG_FILES, AC_CONFIG_HEADERS, and
1162 AC_CONFIG_LINK specified using shell variables. However, if these
1163 variables are used as ${VAR}, and AC_SUBSTed, then Automake will
1164 be able to output rules anyway.
1165 (See the Automake documentation for AC_CONFIG_FILES.)
1167 - $(EXEEXT) is automatically appended to filenames of TESTS
1168 that have been declared as programs in the same Makefile.
1169 This is mostly useful when some check_PROGRAMS are listed in TESTS.
1171 - `-Wportability' has finally been turned on by default for `gnu' and
1172 `gnits' strictness. This means, automake will complain about %-rules
1173 or $(GNU Make functions) unless you switch to `foreign' strictness or
1174 use `-Wno-portability'.
1176 - Automake now uses AC_PROG_MKDIR_P (new in Autoconf 2.60), and uses
1177 $(MKDIR_P) instead of $(mkdir_p) to create directories. The
1178 $(mkdir_p) variable is still defined (to the same value as
1179 $(MKDIR_P)) but should be considered obsolete. If you are using
1180 $(mkdir_p) in some of your rules, please plan to update them to
1181 $(MKDIR_P) at some point.
1183 - AM_C_PROTOTYPES and ansi2knr are now documented as being obsolete.
1184 They still work in this release, but may be withdrawn in a future one.
1186 - Inline compilation rules for gcc3-style dependency tracking are
1189 - Automake installs a "Hello World!" example package in $(docdir).
1190 This example is used throughout the new "Autotools Introduction"
1191 chapter of the manual.
1193 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1197 * Makefile.in bloat reduction:
1199 - Inference rules are used to compile sources in subdirectories when
1200 the `subdir-objects' option is used and no per-target flags are
1201 used. This should reduce the size of some projects a lot, because
1202 Automake used to output an explicit rule for each such object in
1205 - Automake no longer outputs three rules (.o, .obj, .lo) for each
1206 object that must be built with explicit rules. It just outputs
1207 the rules required to build the kind of object considered: either
1208 the two .o and .obj rules for usual objects, or the .lo rule for
1211 * Change to Libtool support:
1213 - Libtool tags are used with libtool versions that support them.
1214 (I.e., with Libtool 1.5 or greater.)
1216 - Automake is now able to handle setups where a libtool library is
1217 conditionally installed in different directories, as in
1220 lib_LTLIBRARIES = liba.la
1222 pkglib_LTLIBRARIES = liba.la
1224 liba_la_SOURCES = ...
1226 * Changes to aclocal:
1228 - aclocal now ensures that AC_DEFUNs and AU_DEFUNs it discovers are
1229 really evaluated, before it decides to include them in aclocal.m4.
1230 This solves nasty problems with conditional redefinitions of
1231 Autoconf macros in /usr/share/aclocal/*.m4 files causing extraneous
1232 *.m4 files to be included in any project using these macros.
1233 (Calls to AC_PROG_EGREP causing libtool.m4 to be included is the
1234 most famous instance of this bug.)
1236 - Do not complain about missing conditionally AC_REQUIREd macros
1237 that are not actually used. In 1.8.x aclocal would correctly
1238 determine which of these macros were really needed (and include
1239 only these in the package); unfortunately it would also require
1240 all of them to be present in order to run. This created
1241 situations were aclocal would not work on a tarball distributing
1242 all the macros it uses. For instance running aclocal on a project
1243 containing only the subset of the Gettext macros in use by the
1244 project did not work, because gettext conditionally requires other
1247 * Portability improvements:
1249 - Tar format can be chosen with the new options tar-v7, tar-ustar, and
1250 tar-pax. The new option filename-length-max=99 helps diagnosing
1251 filenames that are too long for tar-v7. (PR/414)
1253 - Variables aumented with `+=' are now automatically flattened (i.e.,
1254 trailing backslashes removed) and then wrapped around 80 colummns
1255 (adding trailing backslashes). In previous versions, a long series
1261 would result in a single-line definition of VAR that could possibly
1262 exceed the maximum line length of some make implementations.
1264 Non-augmented variables are still output as they are defined in
1269 - Support Fortran 90/95 with the new "fc" and "ppfc" languages.
1270 Works the same as the old Fortran 77 implementation; just replace
1271 F77 with FC everywhere (exception: FFLAGS becomes FCFLAGS).
1272 Requires a version of autoconf which provides AC_PROG_FC (>=2.59).
1274 - Support for conditional _LISP.
1276 - Support for conditional -hook and -local rules (PR/428).
1278 - Diagnose AC_CONFIG_AUX_DIR calls following AM_INIT_AUTOMAKE. (PR/49)
1280 - Automake will not write any Makefile.ins after the first error it
1281 encounters. The previous Makefile.ins (if any) will be left in
1282 place. (Warnings will not prevent output, but remember they can
1283 be turned into errors with -Werror.)
1285 - The restriction that SUBDIRS must contain direct children is gone.
1288 - The manual tells more about SUBDIRS vs. DIST_SUBDIRS.
1289 It also gives an example of nested packages using AC_CONFIG_SUBDIRS.
1291 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1293 Bugs fixed in 1.8.5:
1295 * Long-standing bugs:
1297 - Define DIST_SUBDIRS even when the `no-dist' or `cygnus' options are used
1298 so that `make distclean' and `make maintainer-clean' can work.
1300 - Define AR and ARFLAGS even when only EXTRA_LIBRARIES are defined.
1302 - Fix many rules to please FreeBSD make, which runs commands with `sh -e'.
1304 - Polish diagnostic when no input file is found.
1306 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1308 Bugs fixed in 1.8.4:
1310 * Long-standing bugs:
1312 - Fix AM_PATH_PYTHON to correctly display $PYTHON when it has been
1313 overridden by the user.
1315 - Honor PATH_SEPARATOR in various places of the Automake package, for
1318 - Adjust dependency tracking mode detection to ICC 8.0's new output.
1321 - Fix install-sh so it can install the `mv' binary... using `mv'.
1323 - Fix tru64 dependency tracking for libtool objects.
1325 - Work around Exuberant Ctags when creating a TAGS files in a directory
1326 without files to scan but with subdirectories to include.
1328 * Bugs introduced by 1.8:
1330 - Fix an "internal error" when @LIBOBJS@ is used in a variable that is
1331 not defined in the same conditions as the _LDADD that uses it.
1333 - Do not warn when JAVAROOT is overridden, this is legitimate.
1335 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1337 Bugs fixed in 1.8.3:
1339 * Long-standing bugs:
1341 - Quote filenames in installation rules, in case $DESTDIR, $prefix,
1342 or any of the other *dir variables contain a space.
1344 Please note that Automake does not and cannot support spaces in
1345 filenames that are involved during the build. This change affects
1346 only installation paths, so that `make install' does not bomb out
1347 in packages configured with
1348 ./configure --prefix '/c/Program Files'
1350 - Fix the depfiles output so it works with GNU sed (<4.1) even when
1351 POSIXLY_CORRECT is set.
1353 - Do not AC_SUBST(LIBOBJS) in AM_WITH_REGEX. This macro was unusable
1354 since Autoconf 2.54, which defines LIBOBJS itself.
1356 - Fix a potential (but unlikely) race condition in parallel elisp
1357 builds. (Introduced in 1.7.3.)
1359 - Do not assume that users override _DEPENDENCIES in all conditions
1360 where Automake will try to define them.
1362 - Do not use `mkdir -p' in mkinstalldirs, unless this is GNU mkdir.
1363 Solaris 8's `mkdir -p' is not thread-safe and can break parallel
1366 This fix also affects the $(mkdir_p) variable defined since
1367 Automake 1.8. It will be set to `mkdir -p' only if mkdir is GNU
1368 mkdir, and to `mkinstalldirs' or `install-sh -d' otherwise.
1370 - Secure temporary directory creation in `make distcheck'. (PR/413)
1372 - Do not generate two build rules for `parser.h' when the
1373 parser appears in two different conditionals.
1375 - Work around a Solaris 8 /bin/sh bug in the test for dependency
1376 checking. Usually ./configure will not pick this shell; so this
1377 fix only helps cases where the shell is forced to /bin/sh.
1379 * Bugs introduced by 1.8:
1381 - In some situations (hand-written `m4_include's), aclocal would
1382 call the `File::Spec->rel2abs' method, which was only introduced
1383 in Perl 5.6. This new version reestablish support Perl 5.005.
1385 It is likely that the next major Automake releases will require at
1386 least Perl 5.6. Consider upgrading your development environment
1387 if you are still using the five-year-old Perl 5.005.
1389 - Automake would sometimes fail to define rules for targets listed
1390 in variables defined in multiple conditions. For instance on
1396 it would define only the `a.$(OBJEXT): a.c' rule and omit the
1397 `b.$(OBJEXT): b.c' rule.
1399 * New sections in manual:
1401 - Third-Party Makefiles: how to interface third party Makefiles.
1402 - Upgrading: upgrading packages to newer Automake versions.
1403 - Multiple Outputs: handling tools that produce many outputs.
1405 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1409 * A (well known) portability bug slipped in the changes made to
1410 install-sh in Automake 1.8.1. The broken install-sh would refuse to
1411 install anything on Tru64.
1413 * Fix install rules for conditionally built python files. (This never
1416 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1420 * Bugs introduced by 1.8:
1422 - Fix Config.pm import error with old Perl versions (at least
1423 5.005_03). One symptom is that aclocal could not find its macro
1426 - Automake 1.8 used `mkdir -m 0755 -p --' to ensure that directories
1427 created by `make install' are always world readable, even if the
1428 installer happens to have an overly restrictive umask (e.g. 077).
1429 This was a mistake and has been reverted. There are at least two
1430 reasons why we must not use `-m 0755':
1431 - it causes special bits like SGID to be ignored,
1432 - it may be too restrictive (some setups expect 775 directories).
1434 - Fix aclocal to honor definitions located in files which have been
1435 m4_included manually. aclocal 1.8 had been updated to check
1436 m4_included files for new requirements, but forgot that these
1437 m4_included files can also provide new definitions.
1439 Note that if you have such a setup, we recommend you get rid of
1440 it. In the past, there was a reason to m4_include files manually:
1441 aclocal used to duplicate entire M4 files into aclocal.m4, even
1442 files that were distributed. Some packages were therefore
1443 m4_including the distributed file directly, and playing some
1444 tricks to ensure aclocal would not copy that file to aclocal.m4,
1445 in order to limit the amount of duplication. Since aclocal 1.8.x
1446 will precisely output m4_includes for local M4 files, we recommend
1447 that you clean up your setup, removing all manual m4_includes and
1448 letting aclocal output them.
1450 - Output detailed menus in the Info version if the Automake manual,
1451 so that Emacs can locate the indexes.
1453 - configure.ac and configure were listed twice in DIST_COMMON (an
1454 internal variable where Automake lists configury files to
1455 distribute). This was harmless, but unaesthetic.
1457 - Use `chmod a-w' instead of `chmod -w' as the latter honors umask.
1458 This was an issue only in the Automake package itself, not in
1461 - Automake assumed that all AC_CONFIG_LINKS arguments had the form
1462 DEST:SRC. This was wrong, as some packages do
1463 AC_CONFIG_LINKS($computedlinks). This version no longer abort in
1466 - Contrary to mkinstalldirs, $(mkdir_p) was expecting exactly one
1467 argument. This caused two kinds of failures:
1468 - Rules installing data in a conditionally defined directory
1469 failed when that directory was undefined. In this case no
1470 argument was supplied.
1471 - `make installdirs' failed, because several directories were
1472 passed to $(mkdir_p). This was an issue only on platform
1473 were $(mkdir_p) is implemented with `install-sh -d'.
1474 $(mkdir_p) as been changed to accept 0 or more arguments, as
1477 * Long-standing bugs:
1479 - Fix an unexpected diagnostic occurring when users attempt
1480 to override some internal variables that Automake appends to.
1482 - aclocal now scans configure.ac for macro definitions (PR/319).
1484 - Fix a portability issue with OSF1/Tru64 Make. If a directory
1485 distributes files which are outside itself (this usually occurs
1486 when using AC_CONFIG_AUX_DIR([../dir]) to use auxiliary files
1487 from a parent package), then `make distcheck' fails due to an
1488 optimization performed by OSF1/Tru64 Make in its VPATH handling.
1489 (tests/subpkg2.test failure)
1491 - Fix another portability issue with Sun and OSF1/Tru64 Make.
1492 In a VPATH-build configuration, `make install' would install
1493 nobase_ files to wrong locations.
1495 - Fix a Perl `uninitialized value' diagnostic occurring when
1496 automake complains that a Texinfo file does not have a
1497 @setfilename statement.
1499 - Erase config.status.lineno during `make distclean'. This file
1500 can be created by config.status. Automake already knew about
1501 configure.lineno, but forgot config.status.lineno.
1503 - Distribute all files, even those which are built and installed
1504 conditionally. This change affects files listed in conditionally
1505 defined *_HEADERS and *_PYTHON variable (unless they are nodist_*)
1506 as well as those listed in conditionally defined dist_*_DATA,
1507 dist_*_JAVA, dist_*_LISP, and dist_*_SCRIPTS variables.
1509 - Fix AM_PATH_LISPDIR to avoid \? in sed regular expressions; it
1510 doesn't conform to POSIX.
1512 - Normalize help strings for configure variables and options added
1517 - Check for python2.4 in AM_PATH_PYTHON.
1519 * Spurious failures in test suite:
1521 - tests/libtool5.test, tests/ltcond.test, tests/ltcond2.test,
1522 tests/ltconv.test: fix failures with CVS Libtool.
1523 - tests/aclocal6.test: fix failure if autom4te.cache is disabled.
1524 - tests/txinfo24.test, tests/txinfo25.test, tests/txinfo28.test:
1525 fix failures with old Texinfo versions.
1527 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1533 - The NEWS file is more verbose.
1537 - Autoconf 2.58 or greater is required.
1541 - Default source file names in the absence of a _SOURCES declaration
1542 are made by removing any target extension before appending `.c', so
1543 to make the libtool module `foo.la' from `foo.c', you only need to
1546 lib_LTLIBRARIES = foo.la
1547 foo_la_LDFLAGS = -module
1549 For backward compatibility, foo_la.c will be used instead of
1550 foo.c if this file exists or is the explicit target of a rule.
1551 However -Wobsolete will warn about this deprecated naming.
1553 - AR's `cru' flags are now set in a global ARFLAGS variable instead
1554 of being hard-coded in each $(AR) invocation, so they can be
1555 substituted from configure.ac. This has been requested by people
1556 dealing with non-POSIX ar implementations.
1558 - New warning option: -Woverride. This will warn about any user
1559 target or variable definitions which override Automake
1562 - Texinfo rules back up and restore info files when makeinfo fails.
1564 - Texinfo rules now support the `html' target.
1565 Running this requires Texinfo 4.0 or greater.
1567 `html' is a new recursive target, so if your package mixes
1568 hand-crafted `Makefile.in's with Automake-generated
1569 `Makefile.in's, you should adjust the former to support (or
1570 ignore) this target so that `make html' recurses successfully. If
1571 you had a custom `html' rule in your `Makefile.am', it's better to
1572 rename it as `html-local', otherwise your rule will override
1573 Automake's new rule (you can check that by running `automake
1574 -Woverride') and that will stop the recursion to subdirectories.
1576 Last but not least, this `html' rule is declared PHONY, even when
1577 overridden. Fortunately, it appears that few packages use a
1578 non-PHONY `html' rule.
1580 - Any file which is m4_included from configure.ac will appear as a
1581 configure and Makefile.in dependency, and will be automatically
1584 - The rules for rebuilding Makefiles and Makefile.ins will now
1585 rebuild all Makefiles and all Makefile.ins at once when one of
1586 configure's dependencies has changed. This is considerably faster
1587 than previous implementations, where config.status and automake
1588 were run separately in each directory (this still happens when you
1589 change a Makefile.am locally, without touching configure.ac or
1590 friends). Doing this also solves a longstanding issue: these
1591 rebuild rules failed to work when adding new directories to the
1592 tree, forcing you to run automake manually.
1594 - For similar reasons, the rules to rebuild configure,
1595 config.status, and aclocal.m4 are now defined in all directories.
1596 Note that if you were using the CONFIG_STATUS_DEPENDENCIES and
1597 CONFIGURE_DEPENDENCIES (formerly undocumented) variables, you
1598 should better define them in all directories. This is easily done
1599 using an AC_SUBST (make sure you prefix these dependencies with
1600 $(top_srcdir) since this variable will appear at different
1601 levels of the build tree).
1603 - aclocal will now use `m4_include' instead of copying local m4
1604 files into aclocal.m4. (Local m4 files are those you ship with
1605 your project, other files will be copied as usual.)
1607 Because m4_included files are automatically distributed, it means
1608 for most projects there is no point in EXTRA_DISTing the list of
1609 m4 files which are used. (You can probably get rid of
1610 m4/Makefile.am if you had one.)
1612 - aclocal will avoid touching aclocal.m4 when possible, so that
1613 Autom4te's cache isn't needlessly invalidated. This behavior can
1614 be switched off with the new `--force' option.
1616 - aclocal now uses Autoconf's --trace to detect macros which are
1617 actually used and will no longer include unused macros simply
1618 because they where mentioned. This was often the case for macros
1619 called conditionally.
1621 - New options no-dist and no-dist-gzip.
1623 - compile, depcomp, elisp-comp, install-sh, mdate-sh, mkinstalldirs,
1624 py-compile, and ylwrap, now all understand --version and --help.
1626 - Automake will now recognize AC_CONFIG_LINKS so far as removing created
1627 links as part of the distclean target and including source files in
1630 - AM_PATH_PYTHON now supports ACTION-IF-FOUND and ACTION-IF-NOT-FOUND
1631 argument. The latter can be used to override the default behavior
1632 (which is to abort).
1634 - Automake will exit with $? = 63 on version mismatch. (So does
1635 Autoconf 2.58) missing knows this, and in this case it will
1636 emulate the tools as if they were absent. Because older versions
1637 of Automake and Autoconf did not use this exit code, this change
1638 will only be useful in projects generated with future versions of
1641 - When using AC_CONFIG_FILES with multiple input files, Automake
1642 generates the first ".in" input file for which a ".am" exists.
1643 (Former versions would try to use only the first input file.)
1645 - lisp_DATA is now allowed. If you are using the empty ELCFILES
1646 idiom to disable byte-compilation of lisp_LISP files, it is
1647 recommended that you switch to using lisp_DATA. Note that
1648 this is not strictly equivalent: lisp_DATA will install elisp
1649 files even if emacs is not installed, while *_LISP do not
1650 install anything unless emacs is found.
1652 - Makefiles will prefer `mkdir -p' over mkinstalldirs if it is
1653 available. This selection is achieved through the Makefile
1654 variable $(mkdir_p) that is set by AM_INIT_AUTOMAKE to either
1655 `mkdir -m 0755 -p --', `$(mkinstalldirs) -m 0755', or
1656 `$(install_sh) -m 0755 -d'.
1660 - Because `mkdir -p' is available on most platforms, and we can use
1661 `install-sh -d' when it is not, the use of the mkinstalldirs
1662 script is being phased out. `automake --add-missing' no longer
1663 installs it, and if you remove mkinstalldirs from your package,
1664 automake will define $(mkinstalldirs) as an alias for $(mkdir_p).
1666 Gettext 0.12.1 still requires mkinstalldirs. Fortunately
1667 gettextize and autopoint will install it when needed. Automake
1668 will continue to define the $(mkinstalldirs) and to distribute
1669 mkinstalldirs when this script is in the source tree.
1671 - AM_PROG_CC_STDC is now empty. The content of this macro was
1672 merged in AC_PROG_CC. If your code uses $am_cv_prog_cc_stdc, you
1673 should adjust it to use $ac_cv_prog_cc_stdc instead. (This
1674 renaming should be safe, even if you have to support several,
1675 versions of Automake, because AC_PROG_CC defines this variable
1676 since Autoconf 2.54.)
1678 - Some users where using the undocumented ACLOCAL_M4_SOURCES
1679 variable to override the aclocal.m4 dependencies computed
1680 (inaccurately) by older versions of Automake. Because Automake
1681 now tracks configure's m4 dependencies accurately (see m4_include
1682 above), the use of ACLOCAL_M4_SOURCES should be considered
1683 obsolete and will be flagged as such when running `automake
1688 - Defining programs conditionally using Automake conditionals no
1689 longer leads to a combinatorial explosion. The following
1690 construct used to be troublesome when used with dozens of
1705 Likewise for _SOURCES, _LDADD, and _LIBADD variables.
1707 - Due to implementation constraints, previous versions of Automake
1708 proscribed multiple conditional definitions of some variables
1718 All _PROGRAMS, _LDADD, and _LIBADD variables were affected.
1719 This restriction has been lifted, and these variables now
1720 support multiple conditional definitions as do other variables.
1722 - Cleanup the definitions of $(distdir) and $(top_distdir).
1723 $(top_distdir) now points to the root of the distribution
1724 directory created during `make dist', as it did in Automake 1.4,
1725 not to the root of the build tree as it did in intervening
1726 versions. Furthermore these two variables are now only defined in
1727 the top level Makefile, and passed to sub-directories when running
1730 - The --no-force option now correctly checks the Makefile.in's
1731 dependencies before deciding not to update it.
1733 - Do not assume that make files are called Makefile in cleaning rules.
1735 - Update .info files in the source tree, not in the build tree. This
1736 is what the GNU Coding Standard recommend. Only Automake 1.7.x
1737 used to update these files in the build tree (previous versions did
1738 it in the source tree too), and it caused several problems, varying
1739 from mere annoyance to portability issues.
1741 - COPYING, COPYING.LIB, and COPYING.LESSER are no longer overwritten
1742 when --add-missing and --force-missing are used. For backward
1743 compatibility --add-missing will continue to install COPYING (in
1744 `gnu' strictness) when none of these three files exist, but this
1745 use is deprecated: you should better choose a license yourself and
1746 install it once for all in your source tree (and in your code
1749 - Fix ylwrap so that it does not overwrite header files that haven't
1750 changed, as the inline rule already does.
1752 - User-defined rules override automake-defined rules for the same
1753 targets, even when rules do not have commands. This is not new
1754 (and was documented), however some of the automake-generated
1755 rules have escaped this principle in former Automake versions.
1756 Rules for the following targets are affected by this fix:
1758 clean, clean-am, dist-all, distclean, distclean-am, dvi, dvi-am,
1759 info, info-am, install-data-am, install-exec-am, install-info,
1760 install-info-am, install-man, installcheck-am, maintainer-clean,
1761 maintainer-clean-am, mostlyclean, mostlyclean-am, pdf, pdf-am,
1762 ps, ps-am, uninstall-am, uninstall-info, uninstall-man
1764 Practically it means that an attempt to supplement the dependencies
1765 of some target, as in
1767 clean: my-clean-rule
1769 will now *silently override* the automake definition of the
1770 rule for this target. Running `automake -Woverride' will diagnose
1771 all such overriding definitions.
1773 It should be noted that almost all of these targets support a *-local
1774 variant that is meant to supplement the automake-defined rule
1775 (See node `Extending' in the manual). The above rule should
1778 clean-local: my-clean-rule
1780 These *-local targets have been documented since at least
1781 Automake 1.2, so you should not fear the change if you have
1782 to support multiple automake versions.
1786 - The Automake manual is now distributed under the terms of the GNU FDL.
1788 - Targets dist-gzip, dist-bzip2, dist-tarZ, dist-zip are always defined.
1790 - core dumps are no longer removed by the cleaning rules. There are
1791 at least three reasons for this:
1792 1. These files should not be created by any build step,
1793 so their removal do not fit any of the cleaning rules.
1794 Actually, they may be precious to the developer.
1795 2. If such file is created during a build, then it's clearly a
1796 bug Automake should not hide. Not removing the file will
1797 cause `make distcheck' to complain about its presence.
1798 3. Operating systems have different naming conventions for
1799 core dump files. A core file on one system might be a
1800 completely legitimate data file on another system.
1802 - RUNTESTFLAGS, CTAGSFLAGS, ETAGSFLAGS, JAVACFLAGS are no longer
1803 defined by Automake. This means that any definition in the
1804 environment will be used, unless overridden in the Makefile.am or
1805 on the command line. The old behavior, where these variables were
1806 defined empty in each Makefile, can be obtained by AC_SUBSTing or
1807 AC_ARG_VARing each variable from configure.ac.
1809 - CONFIGURE_DEPENDENCIES and CONFIG_STATUS_DEPENDENCIES are now
1810 documented. (The is not a new feature, these variables have
1811 been there since at least Automake 1.4.)
1813 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1815 Bugs fixed in 1.7.9:
1816 * Fix install-strip to work with nobase_ binaries.
1817 * Fix renaming of #line directives in ylwrap.
1818 * Rebuild with Autoconf 2.59. (1.7.8 was not installable with pdksh.)
1820 Bugs fixed in 1.7.8:
1821 * Remove spurious blank lines in cleaning rules introduced in 1.7.7.
1822 * Fix detection of Debian's install-info, broken since version 1.5.
1823 (Debian bug #213524).
1824 * Honor -module if it appears in AM_LDFLAGS (i.e., relax name checking)
1825 This was only done for libfoo_LDFLAGS and LDFLAGS in previous versions.
1827 Bugs fixed in 1.7.7:
1828 * The implementation of automake's --no-force option is unreliable,
1829 so this option is ignored in this version. A real fix will appear in
1830 Automake 1.8. (Debian Bug #206299)
1831 * AM_PATH_PYTHON: really check the whole list of interpreters if no
1832 argument is given. (PR/399)
1833 * Do not warn about leading `_' in variable names, even with -Wportability.
1834 * Support user redefinitions of TEXINFO_TEX.
1835 * depcomp: support AIX Compiler version 6.
1836 * Fix missing rebuilds during `make dist' with BSD make.
1837 (Could produce tarballs containing out-of-date files.)
1838 * Resurrect multilib support.
1839 * Noteworthy manual updates:
1840 - Extending aclocal: how to write m4 macros that won't trigger warnings
1842 - A Shared Library: Rewrite and split into subsections.
1844 Bugs fixed in 1.7.6:
1845 * Fix depcomp's icc mode for ICC 7.1.
1846 * Diagnose calls to AC_CONFIG_FILES and friends with not enough arguments.
1847 * Fix maintainer-clean's removal of autom4te.cache in VPATH builds.
1848 * Fix AM_PATH_LISPDIR to work with POSIXLY_CORRECT=1.
1849 * Fix the location reported in some diagnostics related to AUTOMAKE_OPTIONS.
1850 * Remove Latin-1 characters from elisp-comp.
1851 * Update the manual's @dircategory to match the Free Software Directory.
1853 Bugs fixed in 1.7.5:
1854 * Update install-sh's license to remove an advertising clause.
1855 (Debian bug #191717)
1856 * Fix a bug introduced in 1.7.4, related to BUILT_SOURCE handling,
1857 that caused invalid Makefile.ins to be generated.
1858 * Make sure AM_MAKE_INCLUDE doesn't fail when a `doit' file exists.
1859 * New FAQ entry: renamed objects.
1861 Bugs fixed in 1.7.4:
1862 * Tweak the TAGS rule to support Exuberant Ctags (in addition to
1863 the Emacs implementation)
1864 * Fix output of aclocal.m4 dependencies in subdirectories.
1865 * Use `mv -f' instead of `mv' in fastdep rules.
1866 * Upgrade mdate-sh to work on OS/2.
1867 * Don't byte-compile elisp files when ELCFILES is set empty.
1868 (this documented feature was broken by 1.7.3)
1869 * Diagnose trailing backslashes on last line of Makefile.am.
1870 * Diagnose whitespace following trailing backslashes.
1871 * Multiple tests are now correctly supported in DEJATOOL. (PR/388)
1872 * Fix rebuilt rules for AC_CONFIG_FILES([Makefile:Makefile.in:Makefile.bot])
1874 * `make install' will build `BUILT_SOURCES' first.
1875 * Minor documentation fixes.
1877 Bugs fixed in 1.7.3:
1878 * Fix stamp files numbering (when using multiple AC_CONFIG_HEADERS).
1879 * Query distutils for `pythondir' and `pythonexecdir', instead of
1880 using an hardcoded path. This should allow builds on 64-bit
1881 distributions that usually use lib64/ instead of lib/.
1882 * AM_PATH_PYTHON will also search for python2.3.
1883 * elisp files are now built all at once instead of one by one. Besides
1884 incurring a speed-up, this is required to support interdependent elisp files.
1885 * Support for DJGPP:
1886 - `make distcheck' will now work in `_inst/' and `_build' instead
1887 of `=inst/' and `=build/'
1888 - use `_dirstamp' when the file-system doesn't support `.dirstamp'
1889 - install/uninstall `*.i[0-9][0-9]'-style info files
1890 - more changes that affect only the Automake package (not its output)
1891 * Fix some incompatibilities with upcoming perl-5.10.
1892 * Properly quote AC_PACKAGE_TARNAME and AC_PACKAGE_VERSION when defining
1893 PACKAGE and VERSION.
1895 - dashmstdout and dashXmstdout modes: don't use `-o /dev/null', this
1896 is troublesome with gcc and Solaris compilers. (PR/385)
1897 - makedepend mode: work with Libtool. (PR/385 too)
1899 * better support for unusual gettext setups, such as multiple po/ directories
1901 - Flag missing po/ and intl/ directories as warnings, not errors.
1902 - Disable these warnings if po/ does not exist.
1903 * Noteworthy manual updates:
1905 - Document how AC_CONFIG_AUX_DIR interacts with missing files.
1907 - Document `AM_YFLAGS = -d'. (PR/382)
1909 Bugs fixed in 1.7.2:
1910 * Fix installation and uninstallation of Info files built in subdirectories.
1911 * Do not run `./configure --with-included-gettext' during `make distcheck'
1912 if AM_GNU_GETTEXT([external]) is used.
1913 * Correctly uninstall renamed man pages.
1914 * Do not strip escaped newline in variables defined in one condition
1915 and augmented in another condition.
1916 * Fix ansi2knr rules for LIBOBJS sources.
1917 * Clean all known Texinfo index files, not only those which appear to
1918 be used, because we cannot know which indexes are used in included files.
1919 (PR/375, Debian Bug #168671)
1920 * Honor only the first @setfilename seen in a Texinfo file.
1921 * Treat "required file X not found" diagnostics as errors (exit status 1).
1922 * Don't complain that a required file is not found when it is a Makefile
1924 * Don't use single suffix inference rules when building `.info'-less
1925 Info files, for the sake of Solaris make.
1926 * The `check' target now depends on `$(BUILT_SOURCES)'. (PR/359)
1927 * Recognize multiple inference rules such as `.a.b .c.d:'. (PR/371)
1928 * Warn about multiple inference rules when -Wportability is used. (PR/372)
1929 * Fix building of deansified files from subdirectories. (PR/370)
1930 * Add missing `fi' in the .c->.obj rules.
1931 * Improve install-sh to work even when names contain spaces or certain
1932 (but not all) shell metachars.
1933 * Fix the following spurious failures in the test suite:
1934 depcomp2.test, gnits2.test, gnits3.test, python3.test, texinfo13.test
1935 * Noteworthy manual updates:
1936 - Augment the section about BUILT_SOURCES.
1937 - Mention that AM_PROG_CC_STDC is a relic that is better avoided today.
1939 Bugs fixed in 1.7.1:
1940 * Honor `ansi2knr' for files built in subdirectories, or using per-targets
1942 * Aclocal should now recognize macro names containing parentheses, e.g.
1943 AC_DEFUN([AC_LANG_PREPROC(Fortran 90)], [...]).
1944 * Erase *.sum and *.log files created by DejaGnu, during `make distclean'.
1946 * Install Python files even if they were built. (PR/369)
1947 * Have stamp-vti dependent upon configure instead of configure.ac, as the
1948 version might not be defined in the latter. (PR/358)
1949 * Reorder arguments passed to a couple of commands, so things works
1950 when POSIXLY_CORRECT=1.
1951 * Fix a regex that can cause Perl to segfault on large input.
1953 * Fix distribution of packages that have some sources defined conditionally,
1954 as in the `Conditional compilation using Automake conditionals' example
1956 * Fix spurious test suite failures on IRIX.
1957 * Don't report a required variable as undefined if it has been
1958 defined conditionally for the "right" conditions.
1959 * Fix cleaning of the /tmp subdirectory used by `make distcheck', in case
1960 `make distcheck' fails.
1961 * Fix distribution of included Makefile fragment, so we don't create
1962 spurious directories in the distribution. (PR/366)
1963 * Don't complain that a target lacks `.$(EXEEXT)' when it has it.
1966 * Autoconf 2.54 is required.
1967 * `aclocal' and `automake' will no longer warn about obsolete
1968 configure macros. This is done by `autoconf -Wobsolete'.
1969 * AM_CONFIG_HEADER, AM_SYS_POSIX_TERMIOS and
1970 AM_HEADER_TIOCGWINSZ_NEEDS_SYS_IOCTL are obsolete (although still
1971 supported). You should use AC_CONFIG_HEADERS, AC_SYS_POSIX_TERMIOS,
1972 and AC_HEADER_TIOCGWINSZ instead. `autoupdate' can upgrade
1973 `configure.ac' for you.
1974 * Support for per-program and per-library `_CPPFLAGS'.
1975 * New `ctags' target (builds CTAGS files).
1976 * Support for -Wmumble and -Wno-mumble, where mumble is a warning category
1977 (see `automake --help' or the manual for a list of them).
1978 * Honor the WARNINGS environment variable.
1979 * Omit the call to depcomp when using gcc3: call the compiler directly.
1980 * A new option, std-options, tests that programs support --help and --version
1981 when `make installcheck' is run. This is enabled by --gnits.
1982 * Texinfo rules now support the `ps' and `pdf' targets.
1983 * Info files are now created in the build directory, not the source directory.
1984 * info_TEXINFOS supports files in subdirectories (this requires Texinfo 4.1
1986 * `make distcheck' will enforce DESTDIR support by attempting
1988 * `+=' can be used in conditionals, even if the augmented variable
1989 was defined for another condition.
1990 * Makefile fragments (inserted with `include') are always distributed.
1991 * Use Autoconf's --trace interface to inspect configure.ac and get
1992 a more accurate view of it.
1993 * Add support for extending aclocal's default macro search path
1994 using a `dirlist' file within the aclocal directory.
1995 * automake --output-dir is deprecated.
1996 * The part of the distcheck target that checks whether uninstall actually
1997 removes all installed files has been moved in a separate target,
1998 distuninstallcheck, so it can be overridden easily.
2002 * Support for AM_INIT_GETTEXT([external])
2003 * Bug fixes, including:
2004 - Fix Automake's own `make install' so it works even if `ln' doesn't.
2005 - nobase_ programs and scripts honor --program-transform correctly.
2006 - Erase configure.lineno during `make distclean'.
2007 - Erase YACC and LEX outputs during `make maintainer-clean'.
2010 * Many bug fixes, including:
2011 - Requiring the current version works.
2012 - Fix "$@" portability issues (for Zsh).
2013 - Fix output of dummy dependency files in presence of post-processed
2015 - Don't compute dependencies in background to avoid races with libtool.
2016 - Fix handling of _OBJECTS variables for targets sharing source variables.
2017 - Check dependency mode for Java when AM_PROG_GCJ is used.
2020 * automake --output-dir is deprecated
2021 * Many bug fixes, including:
2022 - Don't choke on AM_LDFLAGS definitions.
2023 - Clean libtool objects from subdirectories.
2024 - Allow configure variables with reserved suffix and unknown prefix
2025 (e.g. AC_SUBST(mumble_LDFLAGS) when 'mumble' is not a target).
2026 - Fix the definition of AUTOMAKE and ACLOCAL in configure.
2029 * Autoconf 2.52 is required.
2030 * automake no longer run libtoolize.
2031 This is the job of autoreconf (from GNU Autoconf).
2032 * `dist' generates all the archive flavors, as did `dist-all'.
2033 * `dist-gzip' generates the Gzip tar file only.
2034 * Combining Automake Makefile conditionals no longer lead to a combinatorial
2035 explosion. Makefile.in's keep a reasonable size.
2036 * AM_FUNC_ERROR_AT_LINE, AM_FUNC_STRTOD, AM_FUNC_OBSTACK, AM_PTRDIFF_T
2037 are no longer shipped, since Autoconf 2.52 provides them (both as AM_
2039 * `#line' of Lex and Yacc files are properly set.
2040 * EXTRA_DIST can contain generated directories.
2041 * Support for dot-less extensions in suffix rules.
2042 * The part of the distcheck target that checks whether distclean actually
2043 cleans all built files has been moved in a separate target, distcleancheck,
2044 so it can be overridden easily.
2045 * `make distcheck' will pass additional options defined in
2046 $(DISTCHECK_CONFIGURE_FLAGS) to configure.
2047 * Fixed CDPATH portability problems, in particular for MacOS X.
2048 * Fixed handling of nobase_ targets.
2049 * Fixed support of implicit rules leading to .lo objects.
2050 * Fixed late inclusion of --add-missing files (e.g. depcomp) in DIST_COMMON
2051 * Added uninstall-hook target
2052 * `AC_INIT AM_INIT_AUTOMAKE(tarname,version)' is an obsolete construct.
2053 You can now use `AC_INIT(pkgname,version) AM_INIT_AUTOMAKE' instead.
2054 (Note that "pkgname" is not "tarname", see the manual for details.)
2055 It is also possible to pass a list of global Automake options as
2056 first argument to this new form of AM_INIT_AUTOMAKE.
2057 * Compiler-based assembler is now called `CCAS'; people expected `AS'
2058 to be a real assembler.
2059 * AM_INIT_AUTOMAKE will set STRIP itself when it needs it. Adding
2060 AC_CHECK_TOOL([STRIP], [strip]) manually is no longer required.
2061 * aclocal and automake are also installed with the version number
2062 appended, and some of the install directory names have changed.
2063 This lets you have multiple versions installed simultaneously.
2064 * Support for parsers and lexers in subdirectories.
2067 * Support for `configure.ac'.
2068 * Support for `else COND', `endif COND' and negated conditions `!COND'.
2069 * `make dist-all' is much faster.
2070 * Allows '@' AC_SUBSTs in macro names.
2071 * Faster AM_INIT_AUTOMAKE (requires update of `missing' script)
2072 * User-side dependency tracking. Developers no longer need GNU make
2074 * Uses DIST_SUBDIRS in some situations when SUBDIRS is conditional
2075 * Most files are correctly handled if they appear in subdirs
2076 For instance, a _DATA file can appear in a subdir
2077 * GNU tar is no longer required for `make dist'
2078 * Added support for `dist_' and `nodist_' prefixes
2079 * Added support for `nobase_' prefix
2080 * Compiled Java support
2081 * Support for per-executable and per-library compilation flags
2085 * Added support for the Fortran 77 programming language.
2086 * Re-indexed the Automake Texinfo manual.
2087 * Added `AM_FOOFLAGS' variable for each compiler invocation;
2088 e.g. AM_CFLAGS can be used in Makefile.am to set C compiler flags
2089 * Support for latest autoconf, including support for objext
2090 * Can now put `.' in SUBDIRS to control build order
2091 * `include' command and `+=' support for macro assignment
2092 * Dependency tracking no long susceptible to deleted header file problem
2093 * Maintainer mode now a conditional. @MAINT@ is now an anachronism.
2098 * Better Cygwin32 support
2099 * Support for suffix rules with _SOURCES variables
2100 * New options `readme-alpha' and `check-news'; Gnits mode sets these
2101 * @LEXLIB@ no longer required when lex source seen
2102 Lex support in `missing', and new lex macro. Update your missing script.
2103 * Built-in support for assembly
2104 * aclocal gives error if `AM_' macro not found
2105 * Passed YFLAGS, not YACCFLAGS, to yacc
2106 * AM_PROG_CC_STDC does not have to come before AC_PROG_CPP
2107 * Dependencies computed as a side effect of compilation
2108 * Preliminary support for Java
2109 * DESTDIR support at "make install" time
2110 * Improved ansi2knr support; you must use the latest ansi2knr.c (included)
2114 * Better DejaGnu support
2115 * Added no-installinfo option
2116 * Added Emacs Lisp support
2117 * Added --no-force option
2118 * Included `aclocal' program
2119 * Automake will now generate rules to regenerate aclocal.m4, if appropriate
2120 * Now uses `AM_' macro names everywhere
2121 * ansi2knr option can have directory prefix (eg `../lib/ansi2knr')
2122 ansi2knr now works correctly on K&R sources
2123 * Better C++, yacc, lex support
2124 * Will compute _DEPENDENCIES variables automatically if not supplied
2125 * Will interpolate $(...) and ${...} when examining contents of a variable
2126 * .deps files now in build directory, not source directory; dependency
2127 handling generally rewritten
2128 * DATA, MANS and BUILT_SOURCES no longer included in distribution
2129 * can now put config.h into a subdir
2130 * Added dist-all target
2131 * Support for install-info program (see texinfo 3.9)
2132 * Support for "yacc -d"
2133 * configure substitutions are automatically discovered and included
2134 in generated Makefile.in
2135 * Special --cygnus mode
2136 * OMIT_DEPENDENCIES can now hold list of dependencies to be omitted
2137 when making distribution. Some dependencies are auto-ignored.
2138 * Changed how libraries are specified in _LIBRARIES variable
2139 * Full libtool support, from Gord Matzigkeit
2140 * No longer have to explicitly touch stamp-h when using AC_CONFIG_HEADER;
2141 AM_CONFIG_HEADER handles it automatically
2142 * Texinfo output files no longer need .info extension
2143 * Added `missing' support
2145 * Conditionals in Makefile.am, from Ian Taylor
2149 * distcheck target runs install and installcheck targets
2150 * Added preliminary support for DejaGnu.
2155 * More libtool fixes from Gord Matzigkeit; libtool support is still
2157 * Added support for jm_MAINTAINER_MODE
2159 * New "distcheck" target
2163 * mkinstalldirs and mdate-sh now appear in directory specified by
2165 * Removed DIST_SUBDIRS, DIST_OTHER
2166 * AC_ARG_PROGRAM only required when an actual program exists
2167 * dist-hook target now run before distribution packaged up; idea from
2168 Dieter Baron. Other hooks exist, too.
2169 * Preliminary (unfinished) support for libtool
2170 * Added short option names.
2171 * Better "dist" support when gluing together multiple packages
2175 * Documentation updates (many from François Pinard)
2176 * strictness `normal' now renamed to `foreign'
2177 * Renamed --install-missing to --add-missing
2178 * Now handles AC_CONFIG_AUX_DIR
2179 * Now handles TESTS macro
2180 * DIST_OTHER renamed to EXTRA_DIST
2181 * DIST_SUBDIRS is deprecated
2182 * @ALLOCA@ and @LIBOBJS@ now work in _LDADD variables
2183 * Better error messages in many cases
2184 * Program names are canonicalized
2185 * Added "check" prefix; from Gord Matzigkeit
2189 * configure.in scanner knows about AC_PATH_XTRA, AC_OUTPUT ":" syntax
2190 * Beginnings of a test suite
2191 * Automatically adds -I options for $(srcdir), ".", and path to config.h
2192 * Doesn't print anything when running
2193 * Beginnings of MAINT_CHARSET support
2194 * Can specify version in AUTOMAKE_OPTIONS
2195 * Most errors recognizable by Emacs' M-x next-error
2196 * Added --verbose option
2197 * All "primary" variables now obsolete; use EXTRA_PRIMARY to supply
2198 configure-generated names
2199 * Required macros now distributed in aclocal.m4
2201 * --strictness=gnu is default
2205 * More sophisticated configure.in scanning; now understands ALLOCA and
2206 LIBOBJS directly, handles AC_CONFIG_HEADER more precisely, etc.
2207 * TEXINFOS and MANS now obsolete; use info_TEXINFOS and man_MANS instead.
2208 * CONFIG_HEADER variable now obsolete
2209 * Can handle multiple Texinfo sources
2210 * Allow hierarchies deeper than 2. From Gord Matzigkeit.
2211 * HEADERS variable no longer needed; now can put .h files directly into
2212 foo_SOURCES variable.
2213 * Automake automatically rebuilds files listed in AC_OUTPUT. The
2214 corresponding ".in" files are included in the distribution.
2217 * Added --gnu and --gnits options
2218 * More standards checking
2220 * Cleaned up 'dist' targets
2221 * Added AUTOMAKE_OPTIONS variable and several options
2222 * Now scans configure.in to get some information (preliminary)
2225 * Works with Perl 4 again
2228 * Added --install-missing option.
2229 * Pretty-prints generated macros and rules
2230 * Comments in Makefile.am are placed more intelligently in Makefile.in
2231 * Generates .PHONY target
2232 * Rule or macro in Makefile.am now overrides contents of Automake file
2233 * Substantial cleanups from François Pinard
2237 * Works with Perl 4 again.
2240 * New uniform naming scheme.
2241 * --strictness option
2243 * '.c' files corresponding to '.y' or '.l' files are automatically
2245 * Many bug fixes and cleanups
2248 * Allow objects to be conditionally included in libraries via lib_LIBADD.
2251 * Bug fixes in 'clean' code.
2252 * Now generates 'installdirs' target.
2253 * man page installation reworked.
2254 * 'make dist' no longer re-creates all Makefile.in's.
2257 * Reimplemented in Perl
2258 * Added --amdir option (for debugging)
2259 * Texinfo support cleaned up.
2260 * Automatic de-ANSI-fication cleaned up.
2261 * Cleaned up 'clean' targets.
2264 * Automatic dependency tracking
2265 * More documentation
2266 * New variables DATA and PACKAGEDATA
2267 * SCRIPTS installed using $(INSTALL_SCRIPT)
2268 * No longer uses double-colon rules
2270 * Changes in advance of internationalization
2274 Copyright (C) 1995-2012 Free Software Foundation, Inc.
2276 This program is free software; you can redistribute it and/or modify
2277 it under the terms of the GNU General Public License as published by
2278 the Free Software Foundation; either version 2, or (at your option)
2281 This program is distributed in the hope that it will be useful,
2282 but WITHOUT ANY WARRANTY; without even the implied warranty of
2283 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
2284 GNU General Public License for more details.
2286 You should have received a copy of the GNU General Public License
2287 along with this program. If not, see <http://www.gnu.org/licenses/>.