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 - The long-obsolete (since automake 1.10) AM_PROG_MKDIR m4 macro will
10 be removed in Automake 1.13. The $(mkdir_p) make variable and the
11 @mkdir_p@ substitution will still remain available (as aliases of
12 $(MKDIR_P)) for the moment, for better backward compatibility.
14 - Autoconf 2.65 or later will be required by the next major Automake
15 version (1.13). Until now, Automake has required Autoconf version
18 - Starting from the next major Automake version (1.13), the rules
19 to build pdf, ps and dvi output from Texinfo input will use the
20 '--build-dir' option by default. Since such an option was only
21 introduced in Texinfo 4.9, this means that Makefiles generated by
22 future Automake versions will require at least that version of
25 - Starting from the next major Automake version (1.13), the parallel
26 testsuite harness (previously only enabled by the 'parallel-tests'
27 option) will become the default one; the older serial testsuite
28 harness will still be available through the use of the 'serial-tests'
31 - The following long-obsolete m4 macros will be removed in the
32 next major Automake version (1.13):
34 AM_PROG_CC_STDC: superseded by AC_PROG_CC since October 2002
35 fp_PROG_CC_STDC: broken alias for AM_PROG_CC_STDC
36 fp_WITH_DMALLOC: old alias for AM_WITH_DMALLOC
37 AM_CONFIG_HEADER: superseded by AC_CONFIG_HEADERS since July 2002
38 ud_PATH_LISPDIR: old alias for AM_PATH_LISPDIR
39 jm_MAINTAINER_MODE: old alias for AM_MAINTAINER_MODE
40 ud_GNU_GETTEXT: old alias for AM_GNU_GETTEXT
41 gm_PROG_LIBTOOL: old alias for AC_PROG_LIBTOOL
42 fp_C_PROTOTYPES: old alias for AM_C_PROTOTYPES (which was part
43 of the now-removed automatic de-ANSI-fication
46 - All the "old alias" macros in 'm4/obsolete.m4' will be removed in
47 the next major Automake version (1.13).
49 - Support for the two- and three-arguments invocation forms of the
50 AM_INIT_AUTOMAKE macro is deprecated, and will be removed in the
51 next major Automake version (1.13).
53 - The '--acdir' option of aclocal is deprecated, and will probably
54 be removed in the next major Automake release (1.13). You should
55 use the options '--automake-acdir' and '--system-acdir' instead
56 (which have been introduced in Automake 1.11.2).
58 - The exact order in which the directories in the aclocal macro
59 search path are looked up is probably going to be changed in the
60 next Automake release (1.13).
62 - The 'missing' script will not try anymore to update the timestamp
63 of out-of-date files that require a maintainer-specific tool to be
64 remade, in case the user lacks such a tool (or has a too-old version
65 of it). In fact, starting from Automake 1.13, all it'll do will be
66 giving more useful warnings than a bare "command not found" from a
71 - The '.m4' files provided by Automake does not define serial numbers
72 anymore. This should cause no difference in the behaviour of aclocal
77 - Some testsuite weaknesses and spurious failures have been fixed.
81 * Warnings and deprecations:
83 - Automake now issues a warning (in the 'portability' category) if
84 'configure.in' is used instead of 'configure.ac' as the Autoconf
85 input file. Such a warning will also be present in the next
86 Autoconf version (2.70).
90 - Recursive cleaning rules descends into the $(SUBDIRS) in the natural
91 order (as done by the other recursive rules), rather than in the
92 inverse order. They used to do that in order to work a round a
93 limitation in an older implementation of the automatic dependency
94 tracking support, but that limitation had been lifted years ago
95 already, when the automatic dependency tracking based on side-effects
96 of compilation had been introduced.
98 - Cleaning rules for compiled objects (both "plain" and libtool) work
99 better when subdir objects are involved, not triggering a distinct
100 'rm' invocation for each such object. They do so by removing *any*
101 compiled object file that is in the same directory of a subdir
102 object. See automake bug#10697.
104 * Silent rules support:
106 - A new predefined $(AM_V_P) make variable is provided; it expands
107 to a shell conditional that can be used in recipes to know whether
108 make is being run in silent or verbose mode.
110 Bugs fixed in 1.12.2:
112 * SECURITY VULNERABILITIES!
114 - The 'distcheck' recipe no longer grants temporary world-write
115 permissions on the extracted distdir. Even if such rights were
116 only granted for a vanishingly small time window, the implied
117 race condition proved to be enough to allow a local attacker
118 to run arbitrary code with the privileges of the user running
119 "make distcheck". This is CVE-2012-3386.
121 * Long-standing bugs:
123 - The "recheck" targets behaves better in the face of build failures
124 related to previously failed tests. For example, if a test is a
125 compiled program that must be rerun by "make recheck", and its
126 compilation fails, it will still be rerun by further "make recheck"
127 invocations. See automake bug#11791.
129 * Bugs introduced by 1.12.1:
131 - Automake provides once again the '$(mkdir_p)' make variable and the
132 '@mkdir_p@' substitution (both as simple aliases for '$(MKDIR_P)'),
133 for better backward-compatibility.
135 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
139 * New supported languages:
141 - Support for Objective C++ has been added; it should work similarly to
142 the support for Objective C.
144 * Deprecated obsolescent features:
146 - Use of the long-deprecated two- and three-arguments invocation forms
147 of the AM_INIT_AUTOMAKE macro now elicits a warning in the 'obsolete'
148 category. Starting from the next major Automake release (1.13), such
149 usages won't be allowed anymore.
151 - Support for the "Cygnus-style" trees (enabled by the 'cygnus' option) is
152 now deprecated (its use triggers a warning in the 'obsolete' category).
153 It will be removed in the next major Automake release (1.13).
155 - The long-obsolete (since 1.10) automake-provided $(mkdir_p) make
156 variable, @mkdir_p@ configure-time substitution and AM_PROG_MKDIR
157 m4 macro are deprecated, eliciting a warning in the 'obsolete'
160 * Miscellaneous changes:
162 - The Automake test cases now require a proper POSIX-conforming shell.
163 Older non-POSIX Bourne shells (like Solaris 10 /bin/sh) won't be
164 accepted anymore. In most cases, the user shouldn't have to specify
165 such POSIX shell explicitly, since it will be looked up at configure
166 time. Still, when this lookup fails, or when the user wants to
167 override its conclusion, the variable 'AM_TEST_RUNNER_SHELL' can be
168 used (pointing to the shell that will be used to run the Automake
171 Bugs fixed in 1.12.1:
173 * Bugs introduced by 1.12:
175 - Several weaknesses in Automake's own build system and test suite
178 * Bugs introduced by 1.11.3:
180 - When given non-option arguments, aclocal rejects them, instead of
181 silently ignoring them.
183 * Long-standing bugs:
185 - When the 'color-tests' option is in use, forcing of colored testsuite
186 output through "AM_COLOR_TESTS=always" works even if the terminal is
187 a non-ANSI one, i.e., if the TERM environment variable has a value of
190 - Several inefficiencies and poor performances in the implementation
191 of the parallel-tests 'check' and 'recheck' targets have been fixed.
193 - The post-processing of output "#line" directives done the ylwrap
194 script is more faithful w.r.t. files in a subdirectory; for example,
195 if the processed file is "src/grammar.y", ylwrap will correctly
196 produce directives like:
197 #line 7 "src/grammar.y"
202 * Bugs with new Perl versions:
204 - Aclocal works correctly with perl 5.16.0 (automake bug#11543).
206 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
210 * Obsolete features removed:
212 - The never documented nor truly used script 'acinstall' has been
215 - Support for automatic de-ANSI-fication has been removed.
217 - The support for the "obscure" multilib feature has been removed
218 from Automake core (but remains available in the 'contrib/'
219 directory of the Automake distribution).
221 - Support for ".log -> .html" conversion and the check-html and
222 recheck-html targets has been removed from Automake core (but
223 remains available in the 'contrib/' directory of the Automake
226 - The deprecated 'lzma' compression format for distribution archives
227 has been removed, in favor of 'xz' and 'lzip'.
229 - The obsolete AM_WITH_REGEX macro has been removed.
231 - The long-deprecated options '--output-dir', '--Werror' and
232 '--Wno-error' have been removed.
234 - The chapter on the history of Automake has been moved out of the
235 reference manual, into a new dedicated Texinfo file.
239 - New 'cscope' target to build a cscope database for the source tree.
241 * Changes to Automake-generated testsuite harnesses:
243 - The new automake option 'serial-tests' has been introduced. It can
244 be used to explicitly instruct automake to use the older serial
245 testsuite harness. This is still the default at the moment, but it
246 might change in future versions.
248 - The 'recheck' target (provided by the parallel testsuite harness) now
249 depends on the 'all' target. This allows for a better user-experience
250 in test-driven development. See automake bug#11252.
252 - Test scripts that exit with status 99 to signal an "hard error" (e.g.,
253 and unexpected or internal error, or a failure to set up the test case
254 scenario) have their outcome reported as an 'ERROR' now. Previous
255 versions of automake reported such an outcome as a 'FAIL' (the only
256 difference with normal failures being that hard errors were counted
257 as failures even when the test originating them was listed in
260 - The testsuite summary displayed by the parallel-test harness has a
261 completely new format, that always list the numbers of passed, failed,
262 xfailed, xpassed, skipped and errored tests, even when these numbers
263 are zero (but using smart coloring when the color-tests option is in
266 - The default testsuite driver offered by the 'parallel-tests' option is
267 now implemented (partly at least) with the help of automake-provided
268 auxiliary scripts (e.g., 'test-driver'), instead of relying entirely
269 on code in the generated Makefile.in.
270 This has two noteworthy implications. The first one is that projects
271 using the 'parallel-tests' option should now either run automake with
272 the '--add-missing' option, or manually copy the 'test-driver' script
273 into their tree. The second, and more important, implication is that
274 now, when the 'parallel-tests' option is in use, TESTS_ENVIRONMENT can
275 not be used anymore to define a test runner, and the command specified
276 in LOG_COMPILER (and <ext>_LOG_COMPILER) must be a *real* executable
277 program or script. For example, this is still a valid usage (albeit
280 TESTS_ENVIRONMENT = \
281 if test -n '$(STRICT_TESTS)'; then \
282 maybe_errexit='-e'; \
286 LOG_COMPILER = $(SHELL) $$maybe_errexit
288 while this is not anymore:
290 TESTS_ENVIRONMENT = \
291 $(SHELL) `test -n '$(STRICT_TESTS_CHECKING)' && echo ' -e'`
295 TESTS_ENVIRONMENT = \
296 run_with_perl_or_shell () \
298 if grep -q '^#!.*perl' $$1; then
304 LOG_COMPILER = run_with_perl_or_shell
306 - The package authors can now use customary testsuite drivers within
307 the framework provided by the 'parallel-tests' testsuite harness.
308 Consistently with the existing syntax, this can be done by defining
309 special makefile variables 'LOG_DRIVER' and '<ext>_LOG_DRIVER'.
311 - A new developer-reserved variable 'AM_TESTS_FD_REDIRECT' can be used
312 to redirect/define file descriptors used by the test scripts.
314 - The parallel-tests harness generates now, in addition the '.log' files
315 holding the output produced by the test scripts, a new set of '.trs'
316 files, holding "metadata" derived by the execution of the test scripts;
317 among such metadata are the outcomes of the test cases run by a script.
319 - Initial and still experimental support for the TAP test protocol is
322 * Changes to Yacc and Lex support:
324 - C source and header files derived from non-distributed Yacc and/or
325 Lex sources are now removed by a simple "make clean" (while they were
326 previously removed only by "make maintainer-clean").
328 - Slightly backward-incompatible change, relevant only for use of Yacc
329 with C++: the extensions of the header files produced by the Yacc
330 rules are now modelled after the extension of the corresponding
331 sources. For example, yacc files named "foo.y++" and "bar.yy" will
332 produce header files named "foo.h++" and "bar.hh" respectively, where
333 they would have previously produced header files named simply "foo.h"
334 and "bar.h". This change offers better compatibility with 'bison -o'.
336 * Miscellaneous changes:
338 - The AM_PROG_VALAC macro now causes configure to exit with status 77,
339 rather than 1, if the vala compiler found is too old.
341 - The build system of Automake itself now avoids the use of make
342 recursion as much as possible.
344 - Automake now prefers to quote 'like this' or "like this", rather
345 than `like this', in diagnostic message and generated Makefiles,
346 to accommodate the new GNU Coding Standards recommendations.
348 - Automake has a new option '--print-libdir' that prints the path of the
349 directory containing the Automake-provided scripts and data files.
351 - The 'dist' and 'dist-all' targets now can run compressors in parallel.
353 - The rules to create pdf, dvi and ps output from Texinfo files now
354 works better with modern 'texi2dvi' script, by explicitly passing
355 it the '--clean' option to ensure stray auxiliary files are not
356 left to clutter the build directory.
358 - Automake can now generate silenced rules for texinfo outputs.
360 - Some auxiliary files that are automatically distributed by Automake
361 (e.g., 'install-sh', or the 'depcomp' script for packages compiling
362 C sources) might now be listed in the DIST_COMMON variable in many
363 Makefile.in files, rather than in the top-level one.
365 - Messages of types warning or error from 'automake' and 'aclocal'
366 are now prefixed with the respective type, and presence of -Werror
369 - Automake's early configure-time sanity check now tries to avoid
370 sleeping for a second, which slowed down cached configure runs
371 noticeably. In that case, it will check back at the end of the
372 configure script to ensure that at least one second has passed, to
373 avoid time stamp issues with makefile rules rerunning autotools
376 - The warnings in the category 'extra-portability' are now enabled by
377 '-Wall'. In previous versions, one has to use '-Wextra-portability'
382 - Various minor bugfixes for recent or long-standing bugs.
384 * Bugs introduced by 1.11:
386 - The AM_COND_IF macro also works if the shell expression for the
387 conditional is no longer valid for the condition.
389 - The automake-provided parallel testsuite harness does not fail anymore
390 with BSD make used in parallel mode when there are test scripts in a
391 subdirectory, like in:
393 TESTS = sub/foo.test sub/bar.test
395 * Long-standing bugs:
397 - Automake's own build system finally have a real "installcheck" target.
399 - Vala-related cleanup rules are now more complete, and work better in
402 - Files listed with the AC_REQUIRE_AUX_FILE macro in configure.ac are
403 now automatically distributed also if the directory of the auxiliary
404 files coincides with the top-level directory.
406 - Automake now detects the presence of the '-d' flag in the various
407 '*YFLAGS' variables even when their definitions involve indirections
408 through other variables, such as in:
410 AM_YFLAGS = $(foo_opts)
412 - Automake now complains if a '*YFLAGS' variable has any conditional
413 content, not only a conditional definition.
415 - Explicit enabling and/or disabling of Automake warning categories
416 through the '-W...' options now always takes precedence over the
417 implicit warning level implied by Automake strictness (foreign, gnu
418 or gnits), regardless of the order in which such strictness and
419 warning flags appear. For example, a setting like:
420 AUTOMAKE_OPTIONS = -Wall --foreign
421 will cause the warnings in category 'portability' to be enabled, even
422 if those warnings are by default disabled in 'foreign' strictness.
424 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
426 Bugs fixed in 1.11.5:
428 * Bugs introduced by 1.11.3:
430 - Vala files with '.vapi' extension are now recognized and handled
431 correctly again. See automake bug#11222.
433 - Vala support work again for projects that contain some program
434 built from '.vala' (and possibly '.c') sources and some other
435 program built from '.c' sources *only*. See automake bug#11229.
437 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
441 * Miscellaneous changes:
443 - The 'ar-lib' script now ignores the "s" (symbol index) and "S" (no
444 symbol index) modifiers as well as the "s" action, as the symbol index
445 is created unconditionally by Microsoft lib. Also, the "q" (quick)
446 action is now a synonym for "r" (replace). Also, the script has been
447 ignoring the "v" (verbose) modifier already since Automake 1.11.3.
449 - When the 'compile' script is used to wrap MSVC, it now accepts an
450 optional space between the -I, -L and -l options and their respective
451 arguments, for better POSIX compliance.
453 - There is an initial, experimental support for automatic dependency
454 tracking with tcc (the Tiny C Compiler). Its associated depmode is
455 currently recognized as "icc" (but this and other details are likely
456 to change in future versions).
458 - Automatic dependency tracking now works also with the IBM XL C/C++
459 compilers, thanks to the new new depmode 'xlc'.
461 Bugs fixed in 1.11.4:
463 * Bugs introduced by 1.11.2:
465 - A definition of 'noinst_PYTHON' before 'python_PYTHON' (or similar)
466 don't cause spurious failures upon "make install" anymore.
468 - The user can now instruct the 'uninstall-info' rule not to update
469 the '${infodir}/dir' file by exporting the environment variable
470 'AM_UPDATE_INFO_DIR' to the value "no". This is done for consistency
471 with how the 'install-info' rule operates since automake 1.11.2.
473 * Long-standing bugs:
475 - It is now possible for a foo_SOURCES variable to hold Vala sources
476 together with C header files, as well as with sources and headers for
477 other supported languages (e.g., C++). Previously, only mixing C and
478 Vala sources was supported.
480 - If "aclocal --install" is used, and the first directory specified with
481 '-I' is non-existent, aclocal will now create it before trying to copy
484 - An empty declaration of a "foo_PRIMARY" don't cause anymore the
485 generated install rules to create an empty $(foodir) directory;
486 for example, if Makefile.am contains something like:
490 pkglibexec_SCRIPTS += bar.sh
493 the $(pkglibexec) directory will not be created upon "make install".
495 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
499 * Miscellaneous changes:
501 - Automake's own build system is more silent by default, making use of
502 the 'silent-rules' option.
504 - The master copy of the `gnupload' script is now maintained in gnulib,
507 - The `missing' script doesn't try to wrap calls to `tar' anymore.
509 - "make dist" doesn't wrap `tar' invocations with the `missing' script
510 anymore. Similarly, the obsolescent variable `$(AMTAR)' (which you
511 shouldn't be using BTW ;-) does not invoke the missing script anymore
512 to wrap tar, but simply invokes the `tar' program itself.
514 - "make dist" can now create lzip-compressed tarballs.
516 - In the Automake info documentation, the Top node and the nodes about
517 the invocation of the automake and aclocal programs have been renamed;
518 now, calling "info automake" will open the Top node, while calling
519 "info automake-invocation" and "info aclocal-invocation" will access
520 the nodes about the invocation of respectively automake and aclocal.
522 - Automake is now distributed as a gzip-compressed and an xz-compressed
523 tarball. Previously, bzip2 was used instead of xz.
525 - The last relics of Python 1.5 support have been removed from the
526 AM_PATH_PYTHON macro.
528 - For programs and libraries, automake now detects EXTRA_foo_DEPENDENCIES
529 and adds them to the normal list of dependencies, but without
530 overwriting the foo_DEPENDENCIES variable, which is normally computed
533 Bugs fixed in 1.11.3:
535 * Bugs introduced by 1.11.2:
537 - Automake now correctly recognizes the prefix/primary combination
538 `pkglibexec_SCRIPTS' as valid.
540 - The parallel-tests harness doesn't trip anymore on sed implementations
541 with stricter limits on the length of input lines (problem seen at
544 * Long-standing bugs:
546 - The "deleted header file problem" for *.am files is avoided by stub
547 rules. This allows `make' to trigger a rerun of `automake' also if
548 some previously needed `.am' file has been removed.
550 - The `silent-rules' option now generates working makefiles even
551 for the uncommon `make' implementations that do not support the
552 nested-variables extension to POSIX 2008. For such `make'
553 implementations, whether a build is silent is determined at
554 configure time, and cannot be overridden at make time with
555 `make V=0' or `make V=1'.
557 - Vala support now works better in VPATH setups.
559 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
563 * Changes to aclocal:
565 - The `--acdir' option is deprecated. Now you should use the new options
566 `--automake-acdir' and `--system-acdir' instead.
568 - The `ACLOCAL_PATH' environment variable is now interpreted as a
569 colon-separated list of additional directories to search after the
570 automake internal acdir (by default ${prefix}/share/aclocal-APIVERSION)
571 and before the system acdir (by default ${prefix}/share/aclocal).
573 * Miscellaneous changes:
575 - The Automake support for automatic de-ANSI-fication has been
576 deprecated. It will probably be removed in the next major Automake
579 - The `lzma' compression scheme and associated automake option `dist-lzma'
580 is obsoleted by `xz' and `dist-xz' due to upstream changes.
582 - You may adjust the compression options used in dist-xz and dist-bzip2.
583 The default is now merely -e for xz, but still -9 for bzip; you may
584 specify a different level via the XZ_OPT and BZIP2 envvars respectively.
585 E.g., "make dist-xz XZ_OPT=-7" or "make dist-bzip2 BZIP2=-5"
587 - The `compile' script now converts some options for MSVC for a better
588 user experience. Similarly, the new `ar-lib' script wraps Microsoft lib.
590 - The py-compile script now accepts empty arguments passed to the options
591 `--destdir' and `--basedir', and complains about unrecognized options.
592 Moreover, a non-option argument or a special `--' argument terminates
595 - A developer that needs to pass specific flags to configure at "make
596 distcheck" time can now, and indeed is advised to, do so by defining
597 the developer-reserved makefile variable AM_DISTCHECK_CONFIGURE_FLAGS,
598 instead of the old DISTCHECK_CONFIGURE_FLAGS.
599 The DISTCHECK_CONFIGURE_FLAGS variable should now be reserved for the
600 user; still, the old Makefile.am files that used to define it will
601 still continue to work as before.
603 - New macro AM_PROG_AR that looks for an archiver and wraps it in the new
604 'ar-lib' auxiliary script if the selected archiver is Microsoft lib.
605 This new macro is required for LIBRARIES and LTLIBRARIES when automake
606 is run with -Wextra-portability and -Werror.
608 - When using DejaGnu-based testsuites, the user can extend the `site.exp'
609 file generated by automake-provided rules by defining the special make
610 variable `$(EXTRA_DEJAGNU_SITE_CONFIG)'.
612 - The `install-info' rule can now be instructed not to create/update
613 the `${infodir}/dir' file, by exporting the new environment variable
614 `AM_UPDATE_INFO_DIR' to the value "no".
616 Bugs fixed in 1.11.2:
618 * Bugs introduced by 1.11:
620 - The parallel-tests driver no longer produces erroneous results with
621 Tru64/OSF 5.1 sh upon unreadable log files.
623 - The `parallel-tests' test driver does not report spurious successes
624 when used with concurrent FreeBSD make (e.g., "make check -j3").
626 - When the parallel-tests driver is in use, automake now explicitly
627 rejects invalid entries and conditional contents in TEST_EXTENSIONS,
628 instead of issuing confusing and apparently unrelated error messages
629 (e.g., "non-POSIX variable name", "bad characters in variable name",
630 or "redefinition of TEST_EXTENSIONS), or even, in some situations,
631 silently producing broken `Makefile.in' files.
633 - The `silent-rules' option now truly silences all compile rules, even
634 when dependency tracking is disabled. Also, when `silent-rules' is
635 not used, `make' output no longer contains spurious backslash-only
636 lines, thus once again matching what Automake did before 1.11.
638 - The AM_COND_IF macro also works if the shell expression for the
639 conditional is no longer valid for the condition.
641 * Long-standing bugs:
643 - The order of Yacc and Lex flags is fixed to be consistent with other
644 languages: $(AM_YFLAGS) comes before $(YFLAGS), and $(AM_LFLAGS) before
645 $(LFLAGS), so that the user variables override the developer variables.
647 - "make distcheck" now correctly complains also when "make uninstall"
648 leaves one and only one file installed in $(prefix).
650 - A "make uninstall" issued before a "make install", or after a mere
651 "make install-data" or a mere "make install-exec" does not spuriously
654 - Automake now warns about more primary/directory invalid combinations,
655 such as "doc_LIBRARIES" or "pkglib_PROGRAMS".
657 - Rules generated by Automake now try harder to not change any files when
658 `make -n' is invoked. Fixes include compilation of Emacs Lisp, Vala, or
659 Yacc source files and the rule to update config.h.
661 - Several scripts and the parallel-tests testsuite driver now exit with
662 the right exit status upon receiving a signal.
664 - A per-Makefile.am setting of -Werror does not erroneously carry over
665 to the handling of other Makefile.am files.
667 - The code for automatic dependency tracking works around a Solaris
668 make bug triggered by sources containing repeated slashes when the
669 `subdir-objects' option was used.
671 - The makedepend and hp depmodes now work better with VPATH builds.
673 - Java sources specified with check_JAVA are no longer compiled for
674 "make all", but only for "make check".
676 - An usage like "java_JAVA = foo.java" will now cause Automake to warn
677 and error out if `javadir' is undefined, instead of silently producing
678 a broken Makefile.in.
680 - aclocal and automake now honour the configure-time definitions of
681 AUTOCONF and AUTOM4TE when they spawn autoconf or autom4te processes.
683 - The `install-info' recipe no longer tries to guess whether the
684 `install-info' program is from Debian or from GNU, and adaptively
685 change its behaviour; this has proven to be frail and easy to
688 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
690 Bugs fixed in 1.11.1:
692 - Lots of minor bugfixes.
694 * Bugs introduced by 1.11:
696 - The `parallel-tests' test driver works around a GNU make 3.80 bug with
697 trailing white space in the test list (`TESTS = foo $(EMPTY)').
699 * Long standing bugs:
701 - On Darwin 9, `pythondir' and `pyexecdir' pointed below `/Library/Python'
702 even if the `--prefix' argument pointed outside of a system directory.
703 AM_PATH_PYTHON has been fixed to ignore the value returned from python's
704 `get_python_lib' function if it points outside the configured prefix,
705 unless the `--prefix' argument was either `/usr' or below `/System'.
707 - The testsuite does not try to change the mode of `ltmain.sh' files from
708 a Libtool installation (symlinked to test directories) any more.
710 - AM_PROG_GCJ uses AC_CHECK_TOOLS to look for `gcj' now, so that prefixed
711 tools are preferred in a cross-compile setup.
713 - The distribution is tarred up with mode 755 now by the `dist*' targets.
714 This fixes a race condition where untrusted users could modify files
715 in the $(PACKAGE)-$(VERSION) distdir before packing if the toplevel
716 build directory was world-searchable. This is CVE-2009-4029.
718 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
722 * Version requirements:
724 - Autoconf 2.62 or greater is required.
726 * Changes to aclocal:
728 - The autoconf version check implemented by aclocal in aclocal.m4
729 (and new in Automake 1.10) is degraded to a warning. This helps
730 in the common case where the Autoconf versions used are compatible.
732 * Changes to automake:
734 - The automake program can run multiple threads for creating most
735 Makefile.in files concurrently, if at least Perl 5.7.2 is available
736 with interpreter-based threads enabled. Set the environment variable
737 AUTOMAKE_JOBS to the maximum number of threads to use, in order to
738 enable this experimental feature.
740 * Changes to Libtool support:
742 - Libtool generic flags are now passed to the install and uninstall
745 - distcheck works with Libtool 2.x even when LT_OUTPUT is used, as
746 config.lt is removed correctly now.
750 - subdir-object mode works now with Fortran (F77, FC, preprocessed
751 Fortran, and Ratfor).
753 - For files with extension .f90, .f95, .f03, or .f08, the flag
754 $(FCFLAGS_f[09]x) computed by AC_FC_SRCEXT is now used in compile rules.
756 - Files with extension .sx are also treated as preprocessed assembler.
758 - The default source file extension (.c) can be overridden with
759 AM_DEFAULT_SOURCE_EXT now.
761 - Python 3.0 is supported now, Python releases prior to 2.0 are no
764 - AM_PATH_PYTHON honors python's idea about the site directory.
766 - There is initial support for the Vala programming language, when using
769 * Miscellaneous changes:
771 - Automake development is done in a git repository on Savannah now, see
773 http://git.sv.gnu.org/gitweb/?p=automake.git
775 A read-only CVS mirror is provided at
777 cvs -d :pserver:anonymous@pserver.git.sv.gnu.org:/automake.git \
778 checkout -d automake HEAD
780 - "make dist" can now create xz-compressed tarballs,
781 as well as (deprecated?) lzma-compressed tarballs.
783 - `automake --add-missing' will by default install the GPLv3 file as
784 COPYING if it is missing. It will also warn that the license file
785 should be added to source control. Note that Automake will never
786 overwrite an existing COPYING file, even when the `--force-missing'
789 - The manual is now distributed under the terms of the GNU FDL 1.3.
791 - Automake ships and installs man pages for automake and aclocal now.
793 - New shorthand `$(pkglibexecdir)' for `$(libexecdir)/@PACKAGE@'.
795 - install-sh supports -C, which does not update the installed file
796 (and its time stamps) if the contents did not change.
798 - The `gnupload' script has been revamped.
800 - The `depcomp' and `compile' scripts now work with MSVC under MSYS.
802 - The targets `install' and `uninstall' are more efficient now, in that
803 for example multiple files from one Automake variable such as
804 `bin_SCRIPTS' are copied in one `install' (or `libtool --mode=install')
805 invocation if they do not have to be renamed.
807 Both install and uninstall may sometimes enter (`cd' into) the target
808 installation directory now, when no build-local scripts are used.
810 Both install and uninstall do not fail anymore but do nothing if an
811 installation directory variable like `bindir' is set to the empty string.
813 For built-in rules, `make install' now fails reliably if installation
814 of a file failed. Conversely, `make uninstall' even succeeds when
815 issued multiple times.
817 These changes may need some adjustments from users: For example,
818 some `install' programs refuse to install multiple copies of the
819 same file in one invocation, so you may need to remove duplicate
820 entries from file lists.
822 Also, within one set of files, say, nobase_data_DATA, the order of
823 installation may be changed, or even unstable among different hosts,
824 due to the use of associative arrays in awk. The increased use of
825 awk matches a similar move in Autoconf to provide for better scaling.
827 Further, most undocumented per-rule install command variables such as
828 binSCRIPT_INSTALL have been removed because they are not needed any
829 more. Packages which use them should be using the appropriate one of
830 INSTALL_{DATA,PROGRAM,SCRIPT} or their install_sh_{DATA,PROGRAM,SCRIPT}
831 counterpart, depending on the type of files and the need for automatic
832 target directory creation.
834 - The "deleted header file problem" for *.m4 files is avoided by
835 stub rules. This allows `make' to trigger a rerun of `aclocal'
836 also if some previously needed macro file has been removed.
838 - Rebuild rules now also work for a removed `subdir/Makefile.in' in
839 an otherwise up to date tree.
841 - The `color-tests' option causes colored test result output on terminals.
843 - The `parallel-tests' option enables a new test driver that allows for
844 parallel test execution, inter-test dependencies, lazy test execution
845 for unit-testing, re-testing only failed tests, and formatted result output
846 as RST (reStructuredText) and HTML. Enabling this option may require some
847 changes to your test suite setup; see the manual for details.
849 - The `silent-rules' option enables Linux kernel-style silent build output.
850 This option requires the widely supported but non-POSIX `make' feature
851 of recursive variable expansion, so do not use it if your package needs
852 to build with `make' implementations that do not support it.
854 To enable less verbose build output, the developer has to use the Automake
855 option `silent-rules' in `AM_INIT_AUTOMAKE', or call the `AM_SILENT_RULES'
856 macro. The user may then set the default verbosity by passing the
857 `--enable-silent-rules' option to `configure'. At `make' run time, this
858 default may be overridden using `make V=0' for less verbose, and `make V=1'
859 for backward-compatible verbose output.
861 - New prefix `notrans_' for manpages which should not be transformed
862 by --program-transform.
864 - New macro AM_COND_IF for conditional evaluation and conditional
867 - For AC_CONFIG_LINKS, if source and destination are equal, do not
868 remove the file in a non-VPATH build. Such setups work with Autoconf
871 - AM_MAINTAINER_MODE now allows for an optional argument specifying
874 - AM_SUBST_NOTMAKE may prevent substitution of AC_SUBSTed variables,
875 useful especially for multi-line values.
877 - Automake's early configure-time sanity check now diagnoses an
878 unsafe absolute source directory name and makes configure fail.
880 - The Automake macros and rules cope better with whitespace in the
881 current directory name, as long as the relative path to `configure'
882 does not contain whitespace. To this end, the values of `$(MISSING)'
883 and `$(install_sh)' may contain suitable quoting, and their expansion
884 might need `eval'uation if used outside of a makefile. These
885 undocumented variables may be used in several documented macros such
886 as $(AUTOCONF) or $(MAKEINFO).
890 * Long-standing bugs:
892 - Fix aix dependency tracking for libtool objects.
894 - Work around AIX sh quoting issue in AC_PROG_CC_C_O, leading to
895 unnecessary use of the `compile' script.
897 - For nobase_*_LTLIBRARIES with nonempty directory components, the
898 correct `-rpath' argument is used now.
900 - `config.status --file=Makefile depfiles' now also works with the
901 extra quoting used internally by Autoconf 2.62 and newer
902 (it used to work only without the `--file=' bit).
904 - The `missing' script works better with versioned tool names.
906 - Semantics for `missing help2man' have been revamped:
908 Previously, if `help2man' was not present, `missing help2man' would have
909 the following semantics: if some man page was out of date but present, then
910 a warning would be printed, but the exit status was 0. If the man page was
911 not present at all, then `missing' would create a replacement man page
912 containing an error message, and exit with a status of 2. This does not play
913 well with `make': the next run will see this particular man page as being up
914 to date, and will only error out on the next generated man page, if any;
915 repeat until all pages are done. This was not desirable.
917 These are the new semantics: if some man page is not present, and help2man
918 is not either, then `missing' will warn and generate the replacement page
919 containing the error message, but exit successfully. However, `make dist'
920 will ensure that no such bogus man pages are packaged into a tarball.
922 - Targets provided by automake behave better with `make -n', in that they
923 take care not to create files.
925 - `config.status Makefile... depfiles' works fine again in the presence of
926 disabled dependency tracking.
928 - The default no-op recursive rules for these targets also work with BSD make
929 now: html, install-html, install-dvi, install-pdf, install-pdf, install-info.
931 - `make distcheck' works also when both a directory and some file below it
932 have been added to a distribution variable, such as EXTRA_DIST or *_SOURCES.
934 - Texinfo dvi, ps, pdf, and html output files are not removed upon
935 `make mostlyclean' any more; only the LaTeX by-products are.
937 - Renamed objects also work with the `subdir-objects' option and
938 source file languages which Automake does not know itself.
940 - `automake' now correctly complains about variable assignments which are
941 preceded by a comment, extend over multiple lines with backslash-escaped
942 newlines, and end in a comment sign. Previous versions would silently
943 and wrongly ignore such assignments completely.
945 * Bugs introduced by 1.10:
947 - Fix output of dummy dependency files in presence of post-processed
948 Makefile.in's again, but also cope with long lines.
950 - $(EXEEXT) is automatically appended to filenames of XFAIL_TESTS
951 that have been declared as programs in the same Makefile.
952 This is for consistency with the analogous change to TESTS in 1.10.
954 - Fix order of standard includes to again be `-I. -I$(srcdir)',
955 followed by directories containing config headers.
957 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
961 * Version requirements:
963 - Autoconf 2.60 or greater is required.
965 - Perl 5.6 or greater is required.
967 * Changes to aclocal:
969 - aclocal now also supports -Wmumble and -Wno-mumble options.
971 - `dirlist' entries (for the aclocal search path) may use shell
972 wildcards such as `*', `?', or `[...]'.
974 - aclocal supports an --install option that will cause system-wide
975 third-party macros to be installed in the local directory
976 specified with the first -I flag. This option also uses #serial
977 lines in M4 files to upgrade local macros.
979 The new aclocal options --dry-run and --diff help to review changes
980 before they are installed.
982 - aclocal now outputs an autoconf version check in aclocal.m4 in
983 projects using automake.
985 For a few years, automake and aclocal have been calling autoconf
986 (or its underlying engine autom4te) to accurately retrieve the
987 data they need from configure.ac and its siblings. Doing so can
988 only work if all autotools use the same version of autoconf. For
989 instance a Makefile.in generated by automake for one version of
990 autoconf may stop working if configure is regenerated with another
991 version of autoconf, and vice versa.
993 This new version check ensures that the whole build system has
994 been generated using the same autoconf version.
996 * Support for new Autoconf macros:
998 - The new AC_REQUIRE_AUX_FILE Autoconf macro is supported.
1000 - If `subdir-objects' is set, and AC_CONFIG_LIBOBJ_DIR is specified,
1001 $(LIBOBJS), $(LTLIBOBJS), $(ALLOCA), and $(LTALLOCA) can be used
1002 in different directories. However, only one instance of such a
1003 library objects directory is supported.
1005 * Change to Libtool support:
1007 - Libtool generic flags (those that go before the --mode=MODE option)
1008 can be specified using AM_LIBTOOLFLAGS and target_LIBTOOLFLAGS.
1010 * Yacc and Lex changes:
1012 - The rebuild rules for distributed Yacc and Lex output will avoid
1013 overwriting existing files if AM_MAINTAINER_MODE and maintainer-mode
1016 - ylwrap is now always used for lex and yacc source files,
1017 regardless of whether there is more than one source per directory.
1019 * Languages changes:
1021 - Preprocessed assembler (*.S) compilation now honors CPPFLAGS,
1022 AM_CPPFLAGS and per-target _CPPFLAGS, and supports dependency
1023 tracking, unlike non-preprocessed assembler (*.s).
1025 - subdir-object mode works now with Assembler. Automake assumes
1026 that the compiler understands `-c -o'.
1028 - Preprocessed assembler (*.S) compilation now also honors
1029 $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES).
1031 - Improved support for Objective C:
1032 - Autoconf's new AC_PROG_OBJC will enable automatic dependency tracking.
1033 - A new section of the manual documents the support.
1035 - New support for Unified Parallel C:
1036 - AM_PROG_UPC looks for a UPC compiler.
1037 - A new section of the manual documents the support.
1039 - Per-target flags are now correctly handled in link rules.
1041 For instance maude_CFLAGS correctly overrides AM_CFLAGS; likewise
1042 for maude_LDFLAGS and AM_LDFLAGS. Previous versions bogusly
1043 preferred AM_CFLAGS over maude_CFLAGS while linking, and they
1044 used both AM_LDFLAGS and maude_LDFLAGS on the same link command.
1046 The fix for compiler flags (i.e., using maude_CFLAGS instead of
1047 AM_CFLAGS) should not hurt any package since that is how _CFLAGS
1048 is expected to work (and actually works during compilation).
1050 However using maude_LDFLAGS "instead of" AM_LDFLAGS rather than
1051 "in addition to" breaks backward compatibility with older versions.
1052 If your package used both variables, as in
1054 AM_LDFLAGS = common flags
1055 bin_PROGRAMS = a b c
1056 a_LDFLAGS = more flags
1059 and assumed *_LDFLAGS would sum up, you should rewrite it as
1061 AM_LDFLAGS = common flags
1062 bin_PROGRAMS = a b c
1063 a_LDFLAGS = $(AM_LDFLAGS) more flags
1066 This new behavior of *_LDFLAGS is more coherent with other
1067 per-target variables, and the way *_LDFLAGS variables were
1068 considered internally.
1070 * New installation targets:
1072 - New targets mandated by GNU Coding Standards:
1077 By default they will only install Texinfo manuals.
1078 You can customize them with *-local variants:
1084 - The undocumented recursive target `uninstall-info' no longer exists.
1085 (`uninstall' is in charge of removing all possible documentation
1086 flavors, including optional formats such as dvi, ps, or info even
1087 when `no-installinfo' is used.)
1089 * Miscellaneous changes:
1091 - Automake no longer complains if input files for AC_CONFIG_FILES
1092 are specified using shell variables.
1094 - clean, distribution, or rebuild rules are normally disabled for
1095 inputs and outputs of AC_CONFIG_FILES, AC_CONFIG_HEADERS, and
1096 AC_CONFIG_LINK specified using shell variables. However, if these
1097 variables are used as ${VAR}, and AC_SUBSTed, then Automake will
1098 be able to output rules anyway.
1099 (See the Automake documentation for AC_CONFIG_FILES.)
1101 - $(EXEEXT) is automatically appended to filenames of TESTS
1102 that have been declared as programs in the same Makefile.
1103 This is mostly useful when some check_PROGRAMS are listed in TESTS.
1105 - `-Wportability' has finally been turned on by default for `gnu' and
1106 `gnits' strictness. This means, automake will complain about %-rules
1107 or $(GNU Make functions) unless you switch to `foreign' strictness or
1108 use `-Wno-portability'.
1110 - Automake now uses AC_PROG_MKDIR_P (new in Autoconf 2.60), and uses
1111 $(MKDIR_P) instead of $(mkdir_p) to create directories. The
1112 $(mkdir_p) variable is still defined (to the same value as
1113 $(MKDIR_P)) but should be considered obsolete. If you are using
1114 $(mkdir_p) in some of your rules, please plan to update them to
1115 $(MKDIR_P) at some point.
1117 - AM_C_PROTOTYPES and ansi2knr are now documented as being obsolete.
1118 They still work in this release, but may be withdrawn in a future one.
1120 - Inline compilation rules for gcc3-style dependency tracking are
1123 - Automake installs a "Hello World!" example package in $(docdir).
1124 This example is used throughout the new "Autotools Introduction"
1125 chapter of the manual.
1127 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1131 * Makefile.in bloat reduction:
1133 - Inference rules are used to compile sources in subdirectories when
1134 the `subdir-objects' option is used and no per-target flags are
1135 used. This should reduce the size of some projects a lot, because
1136 Automake used to output an explicit rule for each such object in
1139 - Automake no longer outputs three rules (.o, .obj, .lo) for each
1140 object that must be built with explicit rules. It just outputs
1141 the rules required to build the kind of object considered: either
1142 the two .o and .obj rules for usual objects, or the .lo rule for
1145 * Change to Libtool support:
1147 - Libtool tags are used with libtool versions that support them.
1148 (I.e., with Libtool 1.5 or greater.)
1150 - Automake is now able to handle setups where a libtool library is
1151 conditionally installed in different directories, as in
1154 lib_LTLIBRARIES = liba.la
1156 pkglib_LTLIBRARIES = liba.la
1158 liba_la_SOURCES = ...
1160 * Changes to aclocal:
1162 - aclocal now ensures that AC_DEFUNs and AU_DEFUNs it discovers are
1163 really evaluated, before it decides to include them in aclocal.m4.
1164 This solves nasty problems with conditional redefinitions of
1165 Autoconf macros in /usr/share/aclocal/*.m4 files causing extraneous
1166 *.m4 files to be included in any project using these macros.
1167 (Calls to AC_PROG_EGREP causing libtool.m4 to be included is the
1168 most famous instance of this bug.)
1170 - Do not complain about missing conditionally AC_REQUIREd macros
1171 that are not actually used. In 1.8.x aclocal would correctly
1172 determine which of these macros were really needed (and include
1173 only these in the package); unfortunately it would also require
1174 all of them to be present in order to run. This created
1175 situations were aclocal would not work on a tarball distributing
1176 all the macros it uses. For instance running aclocal on a project
1177 containing only the subset of the Gettext macros in use by the
1178 project did not work, because gettext conditionally requires other
1181 * Portability improvements:
1183 - Tar format can be chosen with the new options tar-v7, tar-ustar, and
1184 tar-pax. The new option filename-length-max=99 helps diagnosing
1185 filenames that are too long for tar-v7. (PR/414)
1187 - Variables aumented with `+=' are now automatically flattened (i.e.,
1188 trailing backslashes removed) and then wrapped around 80 colummns
1189 (adding trailing backslashes). In previous versions, a long series
1195 would result in a single-line definition of VAR that could possibly
1196 exceed the maximum line length of some make implementations.
1198 Non-augmented variables are still output as they are defined in
1203 - Support Fortran 90/95 with the new "fc" and "ppfc" languages.
1204 Works the same as the old Fortran 77 implementation; just replace
1205 F77 with FC everywhere (exception: FFLAGS becomes FCFLAGS).
1206 Requires a version of autoconf which provides AC_PROG_FC (>=2.59).
1208 - Support for conditional _LISP.
1210 - Support for conditional -hook and -local rules (PR/428).
1212 - Diagnose AC_CONFIG_AUX_DIR calls following AM_INIT_AUTOMAKE. (PR/49)
1214 - Automake will not write any Makefile.ins after the first error it
1215 encounters. The previous Makefile.ins (if any) will be left in
1216 place. (Warnings will not prevent output, but remember they can
1217 be turned into errors with -Werror.)
1219 - The restriction that SUBDIRS must contain direct children is gone.
1222 - The manual tells more about SUBDIRS vs. DIST_SUBDIRS.
1223 It also gives an example of nested packages using AC_CONFIG_SUBDIRS.
1225 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1227 Bugs fixed in 1.8.5:
1229 * Long-standing bugs:
1231 - Define DIST_SUBDIRS even when the `no-dist' or `cygnus' options are used
1232 so that `make distclean' and `make maintainer-clean' can work.
1234 - Define AR and ARFLAGS even when only EXTRA_LIBRARIES are defined.
1236 - Fix many rules to please FreeBSD make, which runs commands with `sh -e'.
1238 - Polish diagnostic when no input file is found.
1240 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1242 Bugs fixed in 1.8.4:
1244 * Long-standing bugs:
1246 - Fix AM_PATH_PYTHON to correctly display $PYTHON when it has been
1247 overridden by the user.
1249 - Honor PATH_SEPARATOR in various places of the Automake package, for
1252 - Adjust dependency tracking mode detection to ICC 8.0's new output.
1255 - Fix install-sh so it can install the `mv' binary... using `mv'.
1257 - Fix tru64 dependency tracking for libtool objects.
1259 - Work around Exuberant Ctags when creating a TAGS files in a directory
1260 without files to scan but with subdirectories to include.
1262 * Bugs introduced by 1.8:
1264 - Fix an "internal error" when @LIBOBJS@ is used in a variable that is
1265 not defined in the same conditions as the _LDADD that uses it.
1267 - Do not warn when JAVAROOT is overridden, this is legitimate.
1269 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1271 Bugs fixed in 1.8.3:
1273 * Long-standing bugs:
1275 - Quote filenames in installation rules, in case $DESTDIR, $prefix,
1276 or any of the other *dir variables contain a space.
1278 Please note that Automake does not and cannot support spaces in
1279 filenames that are involved during the build. This change affects
1280 only installation paths, so that `make install' does not bomb out
1281 in packages configured with
1282 ./configure --prefix '/c/Program Files'
1284 - Fix the depfiles output so it works with GNU sed (<4.1) even when
1285 POSIXLY_CORRECT is set.
1287 - Do not AC_SUBST(LIBOBJS) in AM_WITH_REGEX. This macro was unusable
1288 since Autoconf 2.54, which defines LIBOBJS itself.
1290 - Fix a potential (but unlikely) race condition in parallel elisp
1291 builds. (Introduced in 1.7.3.)
1293 - Do not assume that users override _DEPENDENCIES in all conditions
1294 where Automake will try to define them.
1296 - Do not use `mkdir -p' in mkinstalldirs, unless this is GNU mkdir.
1297 Solaris 8's `mkdir -p' is not thread-safe and can break parallel
1300 This fix also affects the $(mkdir_p) variable defined since
1301 Automake 1.8. It will be set to `mkdir -p' only if mkdir is GNU
1302 mkdir, and to `mkinstalldirs' or `install-sh -d' otherwise.
1304 - Secure temporary directory creation in `make distcheck'. (PR/413)
1306 - Do not generate two build rules for `parser.h' when the
1307 parser appears in two different conditionals.
1309 - Work around a Solaris 8 /bin/sh bug in the test for dependency
1310 checking. Usually ./configure will not pick this shell; so this
1311 fix only helps cases where the shell is forced to /bin/sh.
1313 * Bugs introduced by 1.8:
1315 - In some situations (hand-written `m4_include's), aclocal would
1316 call the `File::Spec->rel2abs' method, which was only introduced
1317 in Perl 5.6. This new version reestablish support Perl 5.005.
1319 It is likely that the next major Automake releases will require at
1320 least Perl 5.6. Consider upgrading your development environment
1321 if you are still using the five-year-old Perl 5.005.
1323 - Automake would sometimes fail to define rules for targets listed
1324 in variables defined in multiple conditions. For instance on
1330 it would define only the `a.$(OBJEXT): a.c' rule and omit the
1331 `b.$(OBJEXT): b.c' rule.
1333 * New sections in manual:
1335 - Third-Party Makefiles: how to interface third party Makefiles.
1336 - Upgrading: upgrading packages to newer Automake versions.
1337 - Multiple Outputs: handling tools that produce many outputs.
1339 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1343 * A (well known) portability bug slipped in the changes made to
1344 install-sh in Automake 1.8.1. The broken install-sh would refuse to
1345 install anything on Tru64.
1347 * Fix install rules for conditionally built python files. (This never
1350 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1354 * Bugs introduced by 1.8:
1356 - Fix Config.pm import error with old Perl versions (at least
1357 5.005_03). One symptom is that aclocal could not find its macro
1360 - Automake 1.8 used `mkdir -m 0755 -p --' to ensure that directories
1361 created by `make install' are always world readable, even if the
1362 installer happens to have an overly restrictive umask (e.g. 077).
1363 This was a mistake and has been reverted. There are at least two
1364 reasons why we must not use `-m 0755':
1365 - it causes special bits like SGID to be ignored,
1366 - it may be too restrictive (some setups expect 775 directories).
1368 - Fix aclocal to honor definitions located in files which have been
1369 m4_included manually. aclocal 1.8 had been updated to check
1370 m4_included files for new requirements, but forgot that these
1371 m4_included files can also provide new definitions.
1373 Note that if you have such a setup, we recommend you get rid of
1374 it. In the past, there was a reason to m4_include files manually:
1375 aclocal used to duplicate entire M4 files into aclocal.m4, even
1376 files that were distributed. Some packages were therefore
1377 m4_including the distributed file directly, and playing some
1378 tricks to ensure aclocal would not copy that file to aclocal.m4,
1379 in order to limit the amount of duplication. Since aclocal 1.8.x
1380 will precisely output m4_includes for local M4 files, we recommend
1381 that you clean up your setup, removing all manual m4_includes and
1382 letting aclocal output them.
1384 - Output detailed menus in the Info version if the Automake manual,
1385 so that Emacs can locate the indexes.
1387 - configure.ac and configure were listed twice in DIST_COMMON (an
1388 internal variable where Automake lists configury files to
1389 distribute). This was harmless, but unaesthetic.
1391 - Use `chmod a-w' instead of `chmod -w' as the latter honors umask.
1392 This was an issue only in the Automake package itself, not in
1395 - Automake assumed that all AC_CONFIG_LINKS arguments had the form
1396 DEST:SRC. This was wrong, as some packages do
1397 AC_CONFIG_LINKS($computedlinks). This version no longer abort in
1400 - Contrary to mkinstalldirs, $(mkdir_p) was expecting exactly one
1401 argument. This caused two kinds of failures:
1402 - Rules installing data in a conditionally defined directory
1403 failed when that directory was undefined. In this case no
1404 argument was supplied.
1405 - `make installdirs' failed, because several directories were
1406 passed to $(mkdir_p). This was an issue only on platform
1407 were $(mkdir_p) is implemented with `install-sh -d'.
1408 $(mkdir_p) as been changed to accept 0 or more arguments, as
1411 * Long-standing bugs:
1413 - Fix an unexpected diagnostic occurring when users attempt
1414 to override some internal variables that Automake appends to.
1416 - aclocal now scans configure.ac for macro definitions (PR/319).
1418 - Fix a portability issue with OSF1/Tru64 Make. If a directory
1419 distributes files which are outside itself (this usually occurs
1420 when using AC_CONFIG_AUX_DIR([../dir]) to use auxiliary files
1421 from a parent package), then `make distcheck' fails due to an
1422 optimization performed by OSF1/Tru64 Make in its VPATH handling.
1423 (tests/subpkg2.test failure)
1425 - Fix another portability issue with Sun and OSF1/Tru64 Make.
1426 In a VPATH-build configuration, `make install' would install
1427 nobase_ files to wrong locations.
1429 - Fix a Perl `uninitialized value' diagnostic occurring when
1430 automake complains that a Texinfo file does not have a
1431 @setfilename statement.
1433 - Erase config.status.lineno during `make distclean'. This file
1434 can be created by config.status. Automake already knew about
1435 configure.lineno, but forgot config.status.lineno.
1437 - Distribute all files, even those which are built and installed
1438 conditionally. This change affects files listed in conditionally
1439 defined *_HEADERS and *_PYTHON variable (unless they are nodist_*)
1440 as well as those listed in conditionally defined dist_*_DATA,
1441 dist_*_JAVA, dist_*_LISP, and dist_*_SCRIPTS variables.
1443 - Fix AM_PATH_LISPDIR to avoid \? in sed regular expressions; it
1444 doesn't conform to POSIX.
1446 - Normalize help strings for configure variables and options added
1451 - Check for python2.4 in AM_PATH_PYTHON.
1453 * Spurious failures in test suite:
1455 - tests/libtool5.test, tests/ltcond.test, tests/ltcond2.test,
1456 tests/ltconv.test: fix failures with CVS Libtool.
1457 - tests/aclocal6.test: fix failure if autom4te.cache is disabled.
1458 - tests/txinfo24.test, tests/txinfo25.test, tests/txinfo28.test:
1459 fix failures with old Texinfo versions.
1461 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1467 - The NEWS file is more verbose.
1471 - Autoconf 2.58 or greater is required.
1475 - Default source file names in the absence of a _SOURCES declaration
1476 are made by removing any target extension before appending `.c', so
1477 to make the libtool module `foo.la' from `foo.c', you only need to
1480 lib_LTLIBRARIES = foo.la
1481 foo_la_LDFLAGS = -module
1483 For backward compatibility, foo_la.c will be used instead of
1484 foo.c if this file exists or is the explicit target of a rule.
1485 However -Wobsolete will warn about this deprecated naming.
1487 - AR's `cru' flags are now set in a global ARFLAGS variable instead
1488 of being hard-coded in each $(AR) invocation, so they can be
1489 substituted from configure.ac. This has been requested by people
1490 dealing with non-POSIX ar implementations.
1492 - New warning option: -Woverride. This will warn about any user
1493 target or variable definitions which override Automake
1496 - Texinfo rules back up and restore info files when makeinfo fails.
1498 - Texinfo rules now support the `html' target.
1499 Running this requires Texinfo 4.0 or greater.
1501 `html' is a new recursive target, so if your package mixes
1502 hand-crafted `Makefile.in's with Automake-generated
1503 `Makefile.in's, you should adjust the former to support (or
1504 ignore) this target so that `make html' recurses successfully. If
1505 you had a custom `html' rule in your `Makefile.am', it's better to
1506 rename it as `html-local', otherwise your rule will override
1507 Automake's new rule (you can check that by running `automake
1508 -Woverride') and that will stop the recursion to subdirectories.
1510 Last but not least, this `html' rule is declared PHONY, even when
1511 overridden. Fortunately, it appears that few packages use a
1512 non-PHONY `html' rule.
1514 - Any file which is m4_included from configure.ac will appear as a
1515 configure and Makefile.in dependency, and will be automatically
1518 - The rules for rebuilding Makefiles and Makefile.ins will now
1519 rebuild all Makefiles and all Makefile.ins at once when one of
1520 configure's dependencies has changed. This is considerably faster
1521 than previous implementations, where config.status and automake
1522 were run separately in each directory (this still happens when you
1523 change a Makefile.am locally, without touching configure.ac or
1524 friends). Doing this also solves a longstanding issue: these
1525 rebuild rules failed to work when adding new directories to the
1526 tree, forcing you to run automake manually.
1528 - For similar reasons, the rules to rebuild configure,
1529 config.status, and aclocal.m4 are now defined in all directories.
1530 Note that if you were using the CONFIG_STATUS_DEPENDENCIES and
1531 CONFIGURE_DEPENDENCIES (formerly undocumented) variables, you
1532 should better define them in all directories. This is easily done
1533 using an AC_SUBST (make sure you prefix these dependencies with
1534 $(top_srcdir) since this variable will appear at different
1535 levels of the build tree).
1537 - aclocal will now use `m4_include' instead of copying local m4
1538 files into aclocal.m4. (Local m4 files are those you ship with
1539 your project, other files will be copied as usual.)
1541 Because m4_included files are automatically distributed, it means
1542 for most projects there is no point in EXTRA_DISTing the list of
1543 m4 files which are used. (You can probably get rid of
1544 m4/Makefile.am if you had one.)
1546 - aclocal will avoid touching aclocal.m4 when possible, so that
1547 Autom4te's cache isn't needlessly invalidated. This behavior can
1548 be switched off with the new `--force' option.
1550 - aclocal now uses Autoconf's --trace to detect macros which are
1551 actually used and will no longer include unused macros simply
1552 because they where mentioned. This was often the case for macros
1553 called conditionally.
1555 - New options no-dist and no-dist-gzip.
1557 - compile, depcomp, elisp-comp, install-sh, mdate-sh, mkinstalldirs,
1558 py-compile, and ylwrap, now all understand --version and --help.
1560 - Automake will now recognize AC_CONFIG_LINKS so far as removing created
1561 links as part of the distclean target and including source files in
1564 - AM_PATH_PYTHON now supports ACTION-IF-FOUND and ACTION-IF-NOT-FOUND
1565 argument. The latter can be used to override the default behavior
1566 (which is to abort).
1568 - Automake will exit with $? = 63 on version mismatch. (So does
1569 Autoconf 2.58) missing knows this, and in this case it will
1570 emulate the tools as if they were absent. Because older versions
1571 of Automake and Autoconf did not use this exit code, this change
1572 will only be useful in projects generated with future versions of
1575 - When using AC_CONFIG_FILES with multiple input files, Automake
1576 generates the first ".in" input file for which a ".am" exists.
1577 (Former versions would try to use only the first input file.)
1579 - lisp_DATA is now allowed. If you are using the empty ELCFILES
1580 idiom to disable byte-compilation of lisp_LISP files, it is
1581 recommended that you switch to using lisp_DATA. Note that
1582 this is not strictly equivalent: lisp_DATA will install elisp
1583 files even if emacs is not installed, while *_LISP do not
1584 install anything unless emacs is found.
1586 - Makefiles will prefer `mkdir -p' over mkinstalldirs if it is
1587 available. This selection is achieved through the Makefile
1588 variable $(mkdir_p) that is set by AM_INIT_AUTOMAKE to either
1589 `mkdir -m 0755 -p --', `$(mkinstalldirs) -m 0755', or
1590 `$(install_sh) -m 0755 -d'.
1594 - Because `mkdir -p' is available on most platforms, and we can use
1595 `install-sh -d' when it is not, the use of the mkinstalldirs
1596 script is being phased out. `automake --add-missing' no longer
1597 installs it, and if you remove mkinstalldirs from your package,
1598 automake will define $(mkinstalldirs) as an alias for $(mkdir_p).
1600 Gettext 0.12.1 still requires mkinstalldirs. Fortunately
1601 gettextize and autopoint will install it when needed. Automake
1602 will continue to define the $(mkinstalldirs) and to distribute
1603 mkinstalldirs when this script is in the source tree.
1605 - AM_PROG_CC_STDC is now empty. The content of this macro was
1606 merged in AC_PROG_CC. If your code uses $am_cv_prog_cc_stdc, you
1607 should adjust it to use $ac_cv_prog_cc_stdc instead. (This
1608 renaming should be safe, even if you have to support several,
1609 versions of Automake, because AC_PROG_CC defines this variable
1610 since Autoconf 2.54.)
1612 - Some users where using the undocumented ACLOCAL_M4_SOURCES
1613 variable to override the aclocal.m4 dependencies computed
1614 (inaccurately) by older versions of Automake. Because Automake
1615 now tracks configure's m4 dependencies accurately (see m4_include
1616 above), the use of ACLOCAL_M4_SOURCES should be considered
1617 obsolete and will be flagged as such when running `automake
1622 - Defining programs conditionally using Automake conditionals no
1623 longer leads to a combinatorial explosion. The following
1624 construct used to be troublesome when used with dozens of
1639 Likewise for _SOURCES, _LDADD, and _LIBADD variables.
1641 - Due to implementation constraints, previous versions of Automake
1642 proscribed multiple conditional definitions of some variables
1652 All _PROGRAMS, _LDADD, and _LIBADD variables were affected.
1653 This restriction has been lifted, and these variables now
1654 support multiple conditional definitions as do other variables.
1656 - Cleanup the definitions of $(distdir) and $(top_distdir).
1657 $(top_distdir) now points to the root of the distribution
1658 directory created during `make dist', as it did in Automake 1.4,
1659 not to the root of the build tree as it did in intervening
1660 versions. Furthermore these two variables are now only defined in
1661 the top level Makefile, and passed to sub-directories when running
1664 - The --no-force option now correctly checks the Makefile.in's
1665 dependencies before deciding not to update it.
1667 - Do not assume that make files are called Makefile in cleaning rules.
1669 - Update .info files in the source tree, not in the build tree. This
1670 is what the GNU Coding Standard recommend. Only Automake 1.7.x
1671 used to update these files in the build tree (previous versions did
1672 it in the source tree too), and it caused several problems, varying
1673 from mere annoyance to portability issues.
1675 - COPYING, COPYING.LIB, and COPYING.LESSER are no longer overwritten
1676 when --add-missing and --force-missing are used. For backward
1677 compatibility --add-missing will continue to install COPYING (in
1678 `gnu' strictness) when none of these three files exist, but this
1679 use is deprecated: you should better choose a license yourself and
1680 install it once for all in your source tree (and in your code
1683 - Fix ylwrap so that it does not overwrite header files that haven't
1684 changed, as the inline rule already does.
1686 - User-defined rules override automake-defined rules for the same
1687 targets, even when rules do not have commands. This is not new
1688 (and was documented), however some of the automake-generated
1689 rules have escaped this principle in former Automake versions.
1690 Rules for the following targets are affected by this fix:
1692 clean, clean-am, dist-all, distclean, distclean-am, dvi, dvi-am,
1693 info, info-am, install-data-am, install-exec-am, install-info,
1694 install-info-am, install-man, installcheck-am, maintainer-clean,
1695 maintainer-clean-am, mostlyclean, mostlyclean-am, pdf, pdf-am,
1696 ps, ps-am, uninstall-am, uninstall-info, uninstall-man
1698 Practically it means that an attempt to supplement the dependencies
1699 of some target, as in
1701 clean: my-clean-rule
1703 will now *silently override* the automake definition of the
1704 rule for this target. Running `automake -Woverride' will diagnose
1705 all such overriding definitions.
1707 It should be noted that almost all of these targets support a *-local
1708 variant that is meant to supplement the automake-defined rule
1709 (See node `Extending' in the manual). The above rule should
1712 clean-local: my-clean-rule
1714 These *-local targets have been documented since at least
1715 Automake 1.2, so you should not fear the change if you have
1716 to support multiple automake versions.
1720 - The Automake manual is now distributed under the terms of the GNU FDL.
1722 - Targets dist-gzip, dist-bzip2, dist-tarZ, dist-zip are always defined.
1724 - core dumps are no longer removed by the cleaning rules. There are
1725 at least three reasons for this:
1726 1. These files should not be created by any build step,
1727 so their removal do not fit any of the cleaning rules.
1728 Actually, they may be precious to the developer.
1729 2. If such file is created during a build, then it's clearly a
1730 bug Automake should not hide. Not removing the file will
1731 cause `make distcheck' to complain about its presence.
1732 3. Operating systems have different naming conventions for
1733 core dump files. A core file on one system might be a
1734 completely legitimate data file on another system.
1736 - RUNTESTFLAGS, CTAGSFLAGS, ETAGSFLAGS, JAVACFLAGS are no longer
1737 defined by Automake. This means that any definition in the
1738 environment will be used, unless overridden in the Makefile.am or
1739 on the command line. The old behavior, where these variables were
1740 defined empty in each Makefile, can be obtained by AC_SUBSTing or
1741 AC_ARG_VARing each variable from configure.ac.
1743 - CONFIGURE_DEPENDENCIES and CONFIG_STATUS_DEPENDENCIES are now
1744 documented. (The is not a new feature, these variables have
1745 been there since at least Automake 1.4.)
1747 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1749 Bugs fixed in 1.7.9:
1750 * Fix install-strip to work with nobase_ binaries.
1751 * Fix renaming of #line directives in ylwrap.
1752 * Rebuild with Autoconf 2.59. (1.7.8 was not installable with pdksh.)
1754 Bugs fixed in 1.7.8:
1755 * Remove spurious blank lines in cleaning rules introduced in 1.7.7.
1756 * Fix detection of Debian's install-info, broken since version 1.5.
1757 (Debian bug #213524).
1758 * Honor -module if it appears in AM_LDFLAGS (i.e., relax name checking)
1759 This was only done for libfoo_LDFLAGS and LDFLAGS in previous versions.
1761 Bugs fixed in 1.7.7:
1762 * The implementation of automake's --no-force option is unreliable,
1763 so this option is ignored in this version. A real fix will appear in
1764 Automake 1.8. (Debian Bug #206299)
1765 * AM_PATH_PYTHON: really check the whole list of interpreters if no
1766 argument is given. (PR/399)
1767 * Do not warn about leading `_' in variable names, even with -Wportability.
1768 * Support user redefinitions of TEXINFO_TEX.
1769 * depcomp: support AIX Compiler version 6.
1770 * Fix missing rebuilds during `make dist' with BSD make.
1771 (Could produce tarballs containing out-of-date files.)
1772 * Resurrect multilib support.
1773 * Noteworthy manual updates:
1774 - Extending aclocal: how to write m4 macros that won't trigger warnings
1776 - A Shared Library: Rewrite and split into subsections.
1778 Bugs fixed in 1.7.6:
1779 * Fix depcomp's icc mode for ICC 7.1.
1780 * Diagnose calls to AC_CONFIG_FILES and friends with not enough arguments.
1781 * Fix maintainer-clean's removal of autom4te.cache in VPATH builds.
1782 * Fix AM_PATH_LISPDIR to work with POSIXLY_CORRECT=1.
1783 * Fix the location reported in some diagnostics related to AUTOMAKE_OPTIONS.
1784 * Remove Latin-1 characters from elisp-comp.
1785 * Update the manual's @dircategory to match the Free Software Directory.
1787 Bugs fixed in 1.7.5:
1788 * Update install-sh's license to remove an advertising clause.
1789 (Debian bug #191717)
1790 * Fix a bug introduced in 1.7.4, related to BUILT_SOURCE handling,
1791 that caused invalid Makefile.ins to be generated.
1792 * Make sure AM_MAKE_INCLUDE doesn't fail when a `doit' file exists.
1793 * New FAQ entry: renamed objects.
1795 Bugs fixed in 1.7.4:
1796 * Tweak the TAGS rule to support Exuberant Ctags (in addition to
1797 the Emacs implementation)
1798 * Fix output of aclocal.m4 dependencies in subdirectories.
1799 * Use `mv -f' instead of `mv' in fastdep rules.
1800 * Upgrade mdate-sh to work on OS/2.
1801 * Don't byte-compile elisp files when ELCFILES is set empty.
1802 (this documented feature was broken by 1.7.3)
1803 * Diagnose trailing backslashes on last line of Makefile.am.
1804 * Diagnose whitespace following trailing backslashes.
1805 * Multiple tests are now correctly supported in DEJATOOL. (PR/388)
1806 * Fix rebuilt rules for AC_CONFIG_FILES([Makefile:Makefile.in:Makefile.bot])
1808 * `make install' will build `BUILT_SOURCES' first.
1809 * Minor documentation fixes.
1811 Bugs fixed in 1.7.3:
1812 * Fix stamp files numbering (when using multiple AC_CONFIG_HEADERS).
1813 * Query distutils for `pythondir' and `pythonexecdir', instead of
1814 using an hardcoded path. This should allow builds on 64-bit
1815 distributions that usually use lib64/ instead of lib/.
1816 * AM_PATH_PYTHON will also search for python2.3.
1817 * elisp files are now built all at once instead of one by one. Besides
1818 incurring a speed-up, this is required to support interdependent elisp files.
1819 * Support for DJGPP:
1820 - `make distcheck' will now work in `_inst/' and `_build' instead
1821 of `=inst/' and `=build/'
1822 - use `_dirstamp' when the file-system doesn't support `.dirstamp'
1823 - install/uninstall `*.i[0-9][0-9]'-style info files
1824 - more changes that affect only the Automake package (not its output)
1825 * Fix some incompatibilities with upcoming perl-5.10.
1826 * Properly quote AC_PACKAGE_TARNAME and AC_PACKAGE_VERSION when defining
1827 PACKAGE and VERSION.
1829 - dashmstdout and dashXmstdout modes: don't use `-o /dev/null', this
1830 is troublesome with gcc and Solaris compilers. (PR/385)
1831 - makedepend mode: work with Libtool. (PR/385 too)
1833 * better support for unusual gettext setups, such as multiple po/ directories
1835 - Flag missing po/ and intl/ directories as warnings, not errors.
1836 - Disable these warnings if po/ does not exist.
1837 * Noteworthy manual updates:
1839 - Document how AC_CONFIG_AUX_DIR interacts with missing files.
1841 - Document `AM_YFLAGS = -d'. (PR/382)
1843 Bugs fixed in 1.7.2:
1844 * Fix installation and uninstallation of Info files built in subdirectories.
1845 * Do not run `./configure --with-included-gettext' during `make distcheck'
1846 if AM_GNU_GETTEXT([external]) is used.
1847 * Correctly uninstall renamed man pages.
1848 * Do not strip escaped newline in variables defined in one condition
1849 and augmented in another condition.
1850 * Fix ansi2knr rules for LIBOBJS sources.
1851 * Clean all known Texinfo index files, not only those which appear to
1852 be used, because we cannot know which indexes are used in included files.
1853 (PR/375, Debian Bug #168671)
1854 * Honor only the first @setfilename seen in a Texinfo file.
1855 * Treat "required file X not found" diagnostics as errors (exit status 1).
1856 * Don't complain that a required file is not found when it is a Makefile
1858 * Don't use single suffix inference rules when building `.info'-less
1859 Info files, for the sake of Solaris make.
1860 * The `check' target now depends on `$(BUILT_SOURCES)'. (PR/359)
1861 * Recognize multiple inference rules such as `.a.b .c.d:'. (PR/371)
1862 * Warn about multiple inference rules when -Wportability is used. (PR/372)
1863 * Fix building of deansified files from subdirectories. (PR/370)
1864 * Add missing `fi' in the .c->.obj rules.
1865 * Improve install-sh to work even when names contain spaces or certain
1866 (but not all) shell metachars.
1867 * Fix the following spurious failures in the test suite:
1868 depcomp2.test, gnits2.test, gnits3.test, python3.test, texinfo13.test
1869 * Noteworthy manual updates:
1870 - Augment the section about BUILT_SOURCES.
1871 - Mention that AM_PROG_CC_STDC is a relic that is better avoided today.
1873 Bugs fixed in 1.7.1:
1874 * Honor `ansi2knr' for files built in subdirectories, or using per-targets
1876 * Aclocal should now recognize macro names containing parentheses, e.g.
1877 AC_DEFUN([AC_LANG_PREPROC(Fortran 90)], [...]).
1878 * Erase *.sum and *.log files created by DejaGnu, during `make distclean'.
1880 * Install Python files even if they were built. (PR/369)
1881 * Have stamp-vti dependent upon configure instead of configure.ac, as the
1882 version might not be defined in the latter. (PR/358)
1883 * Reorder arguments passed to a couple of commands, so things works
1884 when POSIXLY_CORRECT=1.
1885 * Fix a regex that can cause Perl to segfault on large input.
1887 * Fix distribution of packages that have some sources defined conditionally,
1888 as in the `Conditional compilation using Automake conditionals' example
1890 * Fix spurious test suite failures on IRIX.
1891 * Don't report a required variable as undefined if it has been
1892 defined conditionally for the "right" conditions.
1893 * Fix cleaning of the /tmp subdirectory used by `make distcheck', in case
1894 `make distcheck' fails.
1895 * Fix distribution of included Makefile fragment, so we don't create
1896 spurious directories in the distribution. (PR/366)
1897 * Don't complain that a target lacks `.$(EXEEXT)' when it has it.
1900 * Autoconf 2.54 is required.
1901 * `aclocal' and `automake' will no longer warn about obsolete
1902 configure macros. This is done by `autoconf -Wobsolete'.
1903 * AM_CONFIG_HEADER, AM_SYS_POSIX_TERMIOS and
1904 AM_HEADER_TIOCGWINSZ_NEEDS_SYS_IOCTL are obsolete (although still
1905 supported). You should use AC_CONFIG_HEADERS, AC_SYS_POSIX_TERMIOS,
1906 and AC_HEADER_TIOCGWINSZ instead. `autoupdate' can upgrade
1907 `configure.ac' for you.
1908 * Support for per-program and per-library `_CPPFLAGS'.
1909 * New `ctags' target (builds CTAGS files).
1910 * Support for -Wmumble and -Wno-mumble, where mumble is a warning category
1911 (see `automake --help' or the manual for a list of them).
1912 * Honor the WARNINGS environment variable.
1913 * Omit the call to depcomp when using gcc3: call the compiler directly.
1914 * A new option, std-options, tests that programs support --help and --version
1915 when `make installcheck' is run. This is enabled by --gnits.
1916 * Texinfo rules now support the `ps' and `pdf' targets.
1917 * Info files are now created in the build directory, not the source directory.
1918 * info_TEXINFOS supports files in subdirectories (this requires Texinfo 4.1
1920 * `make distcheck' will enforce DESTDIR support by attempting
1922 * `+=' can be used in conditionals, even if the augmented variable
1923 was defined for another condition.
1924 * Makefile fragments (inserted with `include') are always distributed.
1925 * Use Autoconf's --trace interface to inspect configure.ac and get
1926 a more accurate view of it.
1927 * Add support for extending aclocal's default macro search path
1928 using a `dirlist' file within the aclocal directory.
1929 * automake --output-dir is deprecated.
1930 * The part of the distcheck target that checks whether uninstall actually
1931 removes all installed files has been moved in a separate target,
1932 distuninstallcheck, so it can be overridden easily.
1936 * Support for AM_INIT_GETTEXT([external])
1937 * Bug fixes, including:
1938 - Fix Automake's own `make install' so it works even if `ln' doesn't.
1939 - nobase_ programs and scripts honor --program-transform correctly.
1940 - Erase configure.lineno during `make distclean'.
1941 - Erase YACC and LEX outputs during `make maintainer-clean'.
1944 * Many bug fixes, including:
1945 - Requiring the current version works.
1946 - Fix "$@" portability issues (for Zsh).
1947 - Fix output of dummy dependency files in presence of post-processed
1949 - Don't compute dependencies in background to avoid races with libtool.
1950 - Fix handling of _OBJECTS variables for targets sharing source variables.
1951 - Check dependency mode for Java when AM_PROG_GCJ is used.
1954 * automake --output-dir is deprecated
1955 * Many bug fixes, including:
1956 - Don't choke on AM_LDFLAGS definitions.
1957 - Clean libtool objects from subdirectories.
1958 - Allow configure variables with reserved suffix and unknown prefix
1959 (e.g. AC_SUBST(mumble_LDFLAGS) when 'mumble' is not a target).
1960 - Fix the definition of AUTOMAKE and ACLOCAL in configure.
1963 * Autoconf 2.52 is required.
1964 * automake no longer run libtoolize.
1965 This is the job of autoreconf (from GNU Autoconf).
1966 * `dist' generates all the archive flavors, as did `dist-all'.
1967 * `dist-gzip' generates the Gzip tar file only.
1968 * Combining Automake Makefile conditionals no longer lead to a combinatorial
1969 explosion. Makefile.in's keep a reasonable size.
1970 * AM_FUNC_ERROR_AT_LINE, AM_FUNC_STRTOD, AM_FUNC_OBSTACK, AM_PTRDIFF_T
1971 are no longer shipped, since Autoconf 2.52 provides them (both as AM_
1973 * `#line' of Lex and Yacc files are properly set.
1974 * EXTRA_DIST can contain generated directories.
1975 * Support for dot-less extensions in suffix rules.
1976 * The part of the distcheck target that checks whether distclean actually
1977 cleans all built files has been moved in a separate target, distcleancheck,
1978 so it can be overridden easily.
1979 * `make distcheck' will pass additional options defined in
1980 $(DISTCHECK_CONFIGURE_FLAGS) to configure.
1981 * Fixed CDPATH portability problems, in particular for MacOS X.
1982 * Fixed handling of nobase_ targets.
1983 * Fixed support of implicit rules leading to .lo objects.
1984 * Fixed late inclusion of --add-missing files (e.g. depcomp) in DIST_COMMON
1985 * Added uninstall-hook target
1986 * `AC_INIT AM_INIT_AUTOMAKE(tarname,version)' is an obsolete construct.
1987 You can now use `AC_INIT(pkgname,version) AM_INIT_AUTOMAKE' instead.
1988 (Note that "pkgname" is not "tarname", see the manual for details.)
1989 It is also possible to pass a list of global Automake options as
1990 first argument to this new form of AM_INIT_AUTOMAKE.
1991 * Compiler-based assembler is now called `CCAS'; people expected `AS'
1992 to be a real assembler.
1993 * AM_INIT_AUTOMAKE will set STRIP itself when it needs it. Adding
1994 AC_CHECK_TOOL([STRIP], [strip]) manually is no longer required.
1995 * aclocal and automake are also installed with the version number
1996 appended, and some of the install directory names have changed.
1997 This lets you have multiple versions installed simultaneously.
1998 * Support for parsers and lexers in subdirectories.
2001 * Support for `configure.ac'.
2002 * Support for `else COND', `endif COND' and negated conditions `!COND'.
2003 * `make dist-all' is much faster.
2004 * Allows '@' AC_SUBSTs in macro names.
2005 * Faster AM_INIT_AUTOMAKE (requires update of `missing' script)
2006 * User-side dependency tracking. Developers no longer need GNU make
2008 * Uses DIST_SUBDIRS in some situations when SUBDIRS is conditional
2009 * Most files are correctly handled if they appear in subdirs
2010 For instance, a _DATA file can appear in a subdir
2011 * GNU tar is no longer required for `make dist'
2012 * Added support for `dist_' and `nodist_' prefixes
2013 * Added support for `nobase_' prefix
2014 * Compiled Java support
2015 * Support for per-executable and per-library compilation flags
2019 * Added support for the Fortran 77 programming language.
2020 * Re-indexed the Automake Texinfo manual.
2021 * Added `AM_FOOFLAGS' variable for each compiler invocation;
2022 e.g. AM_CFLAGS can be used in Makefile.am to set C compiler flags
2023 * Support for latest autoconf, including support for objext
2024 * Can now put `.' in SUBDIRS to control build order
2025 * `include' command and `+=' support for macro assignment
2026 * Dependency tracking no long susceptible to deleted header file problem
2027 * Maintainer mode now a conditional. @MAINT@ is now an anachronism.
2032 * Better Cygwin32 support
2033 * Support for suffix rules with _SOURCES variables
2034 * New options `readme-alpha' and `check-news'; Gnits mode sets these
2035 * @LEXLIB@ no longer required when lex source seen
2036 Lex support in `missing', and new lex macro. Update your missing script.
2037 * Built-in support for assembly
2038 * aclocal gives error if `AM_' macro not found
2039 * Passed YFLAGS, not YACCFLAGS, to yacc
2040 * AM_PROG_CC_STDC does not have to come before AC_PROG_CPP
2041 * Dependencies computed as a side effect of compilation
2042 * Preliminary support for Java
2043 * DESTDIR support at "make install" time
2044 * Improved ansi2knr support; you must use the latest ansi2knr.c (included)
2048 * Better DejaGnu support
2049 * Added no-installinfo option
2050 * Added Emacs Lisp support
2051 * Added --no-force option
2052 * Included `aclocal' program
2053 * Automake will now generate rules to regenerate aclocal.m4, if appropriate
2054 * Now uses `AM_' macro names everywhere
2055 * ansi2knr option can have directory prefix (eg `../lib/ansi2knr')
2056 ansi2knr now works correctly on K&R sources
2057 * Better C++, yacc, lex support
2058 * Will compute _DEPENDENCIES variables automatically if not supplied
2059 * Will interpolate $(...) and ${...} when examining contents of a variable
2060 * .deps files now in build directory, not source directory; dependency
2061 handling generally rewritten
2062 * DATA, MANS and BUILT_SOURCES no longer included in distribution
2063 * can now put config.h into a subdir
2064 * Added dist-all target
2065 * Support for install-info program (see texinfo 3.9)
2066 * Support for "yacc -d"
2067 * configure substitutions are automatically discovered and included
2068 in generated Makefile.in
2069 * Special --cygnus mode
2070 * OMIT_DEPENDENCIES can now hold list of dependencies to be omitted
2071 when making distribution. Some dependencies are auto-ignored.
2072 * Changed how libraries are specified in _LIBRARIES variable
2073 * Full libtool support, from Gord Matzigkeit
2074 * No longer have to explicitly touch stamp-h when using AC_CONFIG_HEADER;
2075 AM_CONFIG_HEADER handles it automatically
2076 * Texinfo output files no longer need .info extension
2077 * Added `missing' support
2079 * Conditionals in Makefile.am, from Ian Taylor
2083 * distcheck target runs install and installcheck targets
2084 * Added preliminary support for DejaGnu.
2089 * More libtool fixes from Gord Matzigkeit; libtool support is still
2091 * Added support for jm_MAINTAINER_MODE
2093 * New "distcheck" target
2097 * mkinstalldirs and mdate-sh now appear in directory specified by
2099 * Removed DIST_SUBDIRS, DIST_OTHER
2100 * AC_ARG_PROGRAM only required when an actual program exists
2101 * dist-hook target now run before distribution packaged up; idea from
2102 Dieter Baron. Other hooks exist, too.
2103 * Preliminary (unfinished) support for libtool
2104 * Added short option names.
2105 * Better "dist" support when gluing together multiple packages
2109 * Documentation updates (many from François Pinard)
2110 * strictness `normal' now renamed to `foreign'
2111 * Renamed --install-missing to --add-missing
2112 * Now handles AC_CONFIG_AUX_DIR
2113 * Now handles TESTS macro
2114 * DIST_OTHER renamed to EXTRA_DIST
2115 * DIST_SUBDIRS is deprecated
2116 * @ALLOCA@ and @LIBOBJS@ now work in _LDADD variables
2117 * Better error messages in many cases
2118 * Program names are canonicalized
2119 * Added "check" prefix; from Gord Matzigkeit
2123 * configure.in scanner knows about AC_PATH_XTRA, AC_OUTPUT ":" syntax
2124 * Beginnings of a test suite
2125 * Automatically adds -I options for $(srcdir), ".", and path to config.h
2126 * Doesn't print anything when running
2127 * Beginnings of MAINT_CHARSET support
2128 * Can specify version in AUTOMAKE_OPTIONS
2129 * Most errors recognizable by Emacs' M-x next-error
2130 * Added --verbose option
2131 * All "primary" variables now obsolete; use EXTRA_PRIMARY to supply
2132 configure-generated names
2133 * Required macros now distributed in aclocal.m4
2135 * --strictness=gnu is default
2139 * More sophisticated configure.in scanning; now understands ALLOCA and
2140 LIBOBJS directly, handles AC_CONFIG_HEADER more precisely, etc.
2141 * TEXINFOS and MANS now obsolete; use info_TEXINFOS and man_MANS instead.
2142 * CONFIG_HEADER variable now obsolete
2143 * Can handle multiple Texinfo sources
2144 * Allow hierarchies deeper than 2. From Gord Matzigkeit.
2145 * HEADERS variable no longer needed; now can put .h files directly into
2146 foo_SOURCES variable.
2147 * Automake automatically rebuilds files listed in AC_OUTPUT. The
2148 corresponding ".in" files are included in the distribution.
2151 * Added --gnu and --gnits options
2152 * More standards checking
2154 * Cleaned up 'dist' targets
2155 * Added AUTOMAKE_OPTIONS variable and several options
2156 * Now scans configure.in to get some information (preliminary)
2159 * Works with Perl 4 again
2162 * Added --install-missing option.
2163 * Pretty-prints generated macros and rules
2164 * Comments in Makefile.am are placed more intelligently in Makefile.in
2165 * Generates .PHONY target
2166 * Rule or macro in Makefile.am now overrides contents of Automake file
2167 * Substantial cleanups from François Pinard
2171 * Works with Perl 4 again.
2174 * New uniform naming scheme.
2175 * --strictness option
2177 * '.c' files corresponding to '.y' or '.l' files are automatically
2179 * Many bug fixes and cleanups
2182 * Allow objects to be conditionally included in libraries via lib_LIBADD.
2185 * Bug fixes in 'clean' code.
2186 * Now generates 'installdirs' target.
2187 * man page installation reworked.
2188 * 'make dist' no longer re-creates all Makefile.in's.
2191 * Reimplemented in Perl
2192 * Added --amdir option (for debugging)
2193 * Texinfo support cleaned up.
2194 * Automatic de-ANSI-fication cleaned up.
2195 * Cleaned up 'clean' targets.
2198 * Automatic dependency tracking
2199 * More documentation
2200 * New variables DATA and PACKAGEDATA
2201 * SCRIPTS installed using $(INSTALL_SCRIPT)
2202 * No longer uses double-colon rules
2204 * Changes in advance of internationalization
2208 Copyright (C) 1995-2012 Free Software Foundation, Inc.
2210 This program is free software; you can redistribute it and/or modify
2211 it under the terms of the GNU General Public License as published by
2212 the Free Software Foundation; either version 2, or (at your option)
2215 This program is distributed in the hope that it will be useful,
2216 but WITHOUT ANY WARRANTY; without even the implied warranty of
2217 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
2218 GNU General Public License for more details.
2220 You should have received a copy of the GNU General Public License
2221 along with this program. If not, see <http://www.gnu.org/licenses/>.