3 * WARNING: Future backward-incompatibilities!
5 - Starting from either the next minor version (1.12.2) or the next major
6 version (1.13), Automake will start warning if 'configure.in' is used
7 instead of 'configure.ac' as the Autoconf input. Future versions of
8 Automake will drop support for 'configure.in' altogether.
10 - Autoconf 2.65 or later will be required by the next major Automake
11 version (1.13). Until now, Automake has required Autoconf version
14 - Starting from the next major Automake version (1.13), the rules to
15 build pdf, ps and dvi output from Texinfo input will use the '--tidy'
16 option by default. Since such an option was introduced in Texinfo
17 4.9, this means that Makefiles generated by future Automake versions
18 will require at least that version of Texinfo.
20 - Starting from the next major Automake version (1.13), the parallel
21 testsuite harness (previously only enabled by the 'parallel-tests'
22 option) will become the default one; the older serial testsuite
23 harness will still be available through the use of the 'serial-tests'
26 - The following long-obsolete m4 macros will be removed in the
27 next major Automake version (1.13):
29 AM_PROG_CC_STDC: superseded by AC_PROG_CC since October 2002
30 fp_PROG_CC_STDC: broken alias for AM_PROG_CC_STDC
31 fp_WITH_DMALLOC: old alias for AM_WITH_DMALLOC
32 AM_CONFIG_HEADER: superseded by AC_CONFIG_HEADERS since July 2002
33 ud_PATH_LISPDIR: old alias for AM_PATH_LISPDIR
34 jm_MAINTAINER_MODE: old alias for AM_MAINTAINER_MODE
35 ud_GNU_GETTEXT: old alias for AM_GNU_GETTEXT
36 gm_PROG_LIBTOOL: old alias for AC_PROG_LIBTOOL
37 fp_C_PROTOTYPES: old alias for AM_C_PROTOTYPES (which was part
38 of the now-removed automatic de-ANSI-fication
41 - All the "old alias" macros in 'm4/obsolete.m4' will be removed in
42 the next major Automake version (1.13).
44 - Support for the two- and three-arguments invocation forms of the
45 AM_INIT_AUTOMAKE macro will be deprecated in the next minor version
46 of Automake (1.12.1) and removed in the next major version (1.13).
48 - The '--acdir' option of aclocal is deprecated, and will probably
49 be removed in the next major Automake release (1.13). You should
50 use the options '--automake-acdir' and '--system-acdir' instead
51 (which have been introduced in Automake 1.11.2).
53 - The exact order in which the directories in the aclocal macro
54 search path are looked up is probably going to be changed in the
55 next Automake release (1.13).
57 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
61 * New supported languages:
63 - Support for Objective C++ has been added; it should work similarly to
64 the support for Objective C.
66 * Deprecated obsolescent features:
68 - Use of the long-deprecated two- and three-arguments invocation forms
69 of the AM_INIT_AUTOMAKE macro now elicits a warning in the 'obsolete'
70 category. Starting from the next major Automake release (1.13), such
71 usages won't be allowed anymore.
73 - Support for the "Cygnus-style" trees (enabled by the 'cygnus' option) is
74 now deprecated (its use triggers a warning in the 'obsolete' category).
75 It will be removed in the next major Automake release (1.13).
77 - The long-obsolete (since 1.10) automake-provided $(mkdir_p) make
78 variable, @mkdir_p@ configure-time substitution and AM_PROG_MKDIR
79 m4 macro are deprecated, eliciting a warning in the 'obsolete'
80 category. They will be removed in the next major version (1.13).
82 * Miscellaneous changes:
84 - The Automake test cases now require a proper POSIX-conforming shell.
85 Older non-POSIX Bourne shells (like Solaris 10 /bin/sh) won't be
86 accepted anymore. In most cases, the user shouldn't have to specify
87 such POSIX shell explicitly, since it will be looked up at configure
88 time. Still, when this lookup fails, or when the user wants to
89 override its conclusion, the variable 'AM_TEST_RUNNER_SHELL' can be
90 used (pointing to the shell that will be used to run the Automake
95 * Bugs introduced by 1.12:
97 - Several weaknesses in Automake's own build system and test suite
100 * Bugs introduced by 1.11.3:
102 - When given non-option arguments, aclocal rejects them, instead of
103 silently ignoring them.
105 * Long-standing bugs:
107 - When the 'color-tests' option is in use, forcing of colored testsuite
108 output through "AM_COLOR_TESTS=always" works even if the terminal is
109 a non-ANSI one, i.e., if the TERM environment variable has a value of
112 - Several inefficiencies and poor performances in the implementation
113 of the parallel-tests 'check' and 'recheck' targets have been fixed.
115 - The post-processing of output "#line" directives done the ylwrap
116 script is more faithful w.r.t. files in a subdirectory; for example,
117 if the processed file is "src/grammar.y", ylwrap will correctly
118 produce directives like:
119 #line 7 "src/grammar.y"
124 * Bugs with new Perl versions:
126 - Aclocal works correctly with perl 5.16.0 (automake bug#11543).
128 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
132 * Obsolete features removed:
134 - The never documented nor truly used script 'acinstall' has been
137 - Support for automatic de-ANSI-fication has been removed.
139 - The support for the "obscure" multilib feature has been removed
140 from Automake core (but remains available in the 'contrib/'
141 directory of the Automake distribution).
143 - Support for ".log -> .html" conversion and the check-html and
144 recheck-html targets has been removed from Automake core (but
145 remains available in the 'contrib/' directory of the Automake
148 - The deprecated 'lzma' compression format for distribution archives
149 has been removed, in favor of 'xz' and 'lzip'.
151 - The obsolete AM_WITH_REGEX macro has been removed.
153 - The long-deprecated options '--output-dir', '--Werror' and
154 '--Wno-error' have been removed.
156 - The chapter on the history of Automake has been moved out of the
157 reference manual, into a new dedicated Texinfo file.
161 - New 'cscope' target to build a cscope database for the source tree.
163 * Changes to Automake-generated testsuite harnesses:
165 - The new automake option 'serial-tests' has been introduced. It can
166 be used to explicitly instruct automake to use the older serial
167 testsuite harness. This is still the default at the moment, but it
168 might change in future versions.
170 - The 'recheck' target (provided by the parallel testsuite harness) now
171 depends on the 'all' target. This allows for a better user-experience
172 in test-driven development. See automake bug#11252.
174 - Test scripts that exit with status 99 to signal an "hard error" (e.g.,
175 and unexpected or internal error, or a failure to set up the test case
176 scenario) have their outcome reported as an 'ERROR' now. Previous
177 versions of automake reported such an outcome as a 'FAIL' (the only
178 difference with normal failures being that hard errors were counted
179 as failures even when the test originating them was listed in
182 - The testsuite summary displayed by the parallel-test harness has a
183 completely new format, that always list the numbers of passed, failed,
184 xfailed, xpassed, skipped and errored tests, even when these numbers
185 are zero (but using smart coloring when the color-tests option is in
188 - The default testsuite driver offered by the 'parallel-tests' option is
189 now implemented (partly at least) with the help of automake-provided
190 auxiliary scripts (e.g., 'test-driver'), instead of relying entirely
191 on code in the generated Makefile.in.
192 This has two noteworthy implications. The first one is that projects
193 using the 'parallel-tests' option should now either run automake with
194 the '--add-missing' option, or manually copy the 'test-driver' script
195 into their tree. The second, and more important, implication is that
196 now, when the 'parallel-tests' option is in use, TESTS_ENVIRONMENT can
197 not be used anymore to define a test runner, and the command specified
198 in LOG_COMPILER (and <ext>_LOG_COMPILER) must be a *real* executable
199 program or script. For example, this is still a valid usage (albeit
202 TESTS_ENVIRONMENT = \
203 if test -n '$(STRICT_TESTS)'; then \
204 maybe_errexit='-e'; \
208 LOG_COMPILER = $(SHELL) $$maybe_errexit
210 while this is not anymore:
212 TESTS_ENVIRONMENT = \
213 $(SHELL) `test -n '$(STRICT_TESTS_CHECKING)' && echo ' -e'`
217 TESTS_ENVIRONMENT = \
218 run_with_perl_or_shell () \
220 if grep -q '^#!.*perl' $$1; then
226 LOG_COMPILER = run_with_perl_or_shell
228 - The package authors can now use customary testsuite drivers within
229 the framework provided by the 'parallel-tests' testsuite harness.
230 Consistently with the existing syntax, this can be done by defining
231 special makefile variables 'LOG_DRIVER' and '<ext>_LOG_DRIVER'.
233 - A new developer-reserved variable 'AM_TESTS_FD_REDIRECT' can be used
234 to redirect/define file descriptors used by the test scripts.
236 - The parallel-tests harness generates now, in addition the '.log' files
237 holding the output produced by the test scripts, a new set of '.trs'
238 files, holding "metadata" derived by the execution of the test scripts;
239 among such metadata are the outcomes of the test cases run by a script.
241 - Initial and still experimental support for the TAP test protocol is
244 * Changes to Yacc and Lex support:
246 - C source and header files derived from non-distributed Yacc and/or
247 Lex sources are now removed by a simple "make clean" (while they were
248 previously removed only by "make maintainer-clean").
250 - Slightly backward-incompatible change, relevant only for use of Yacc
251 with C++: the extensions of the header files produced by the Yacc
252 rules are now modelled after the extension of the corresponding
253 sources. For example, yacc files named "foo.y++" and "bar.yy" will
254 produce header files named "foo.h++" and "bar.hh" respectively, where
255 they would have previously produced header files named simply "foo.h"
256 and "bar.h". This change offers better compatibility with 'bison -o'.
258 * Miscellaneous changes:
260 - The AM_PROG_VALAC macro now causes configure to exit with status 77,
261 rather than 1, if the vala compiler found is too old.
263 - The build system of Automake itself now avoids the use of make
264 recursion as much as possible.
266 - Automake now prefers to quote 'like this' or "like this", rather
267 than `like this', in diagnostic message and generated Makefiles,
268 to accommodate the new GNU Coding Standards recommendations.
270 - Automake has a new option '--print-libdir' that prints the path of the
271 directory containing the Automake-provided scripts and data files.
273 - The 'dist' and 'dist-all' targets now can run compressors in parallel.
275 - The rules to create pdf, dvi and ps output from Texinfo files now
276 works better with modern 'texi2dvi' script, by explicitly passing
277 it the '--clean' option to ensure stray auxiliary files are not
278 left to clutter the build directory.
280 - Automake can now generate silenced rules for texinfo outputs.
282 - Some auxiliary files that are automatically distributed by Automake
283 (e.g., 'install-sh', or the 'depcomp' script for packages compiling
284 C sources) might now be listed in the DIST_COMMON variable in many
285 Makefile.in files, rather than in the top-level one.
287 - Messages of types warning or error from 'automake' and 'aclocal'
288 are now prefixed with the respective type, and presence of -Werror
291 - Automake's early configure-time sanity check now tries to avoid
292 sleeping for a second, which slowed down cached configure runs
293 noticeably. In that case, it will check back at the end of the
294 configure script to ensure that at least one second has passed, to
295 avoid time stamp issues with makefile rules rerunning autotools
298 - The warnings in the category 'extra-portability' are now enabled by
299 '-Wall'. In previous versions, one has to use '-Wextra-portability'
304 - Various minor bugfixes for recent or long-standing bugs.
306 * Bugs introduced by 1.11:
308 - The AM_COND_IF macro also works if the shell expression for the
309 conditional is no longer valid for the condition.
311 - The automake-provided parallel testsuite harness does not fail anymore
312 with BSD make used in parallel mode when there are test scripts in a
313 subdirectory, like in:
315 TESTS = sub/foo.test sub/bar.test
317 * Long-standing bugs:
319 - Automake's own build system finally have a real "installcheck" target.
321 - Vala-related cleanup rules are now more complete, and work better in
324 - Files listed with the AC_REQUIRE_AUX_FILE macro in configure.ac are
325 now automatically distributed also if the directory of the auxiliary
326 files coincides with the top-level directory.
328 - Automake now detects the presence of the '-d' flag in the various
329 '*YFLAGS' variables even when their definitions involve indirections
330 through other variables, such as in:
332 AM_YFLAGS = $(foo_opts)
334 - Automake now complains if a '*YFLAGS' variable has any conditional
335 content, not only a conditional definition.
337 - Explicit enabling and/or disabling of Automake warning categories
338 through the '-W...' options now always takes precedence over the
339 implicit warning level implied by Automake strictness (foreign, gnu
340 or gnits), regardless of the order in which such strictness and
341 warning flags appear. For example, a setting like:
342 AUTOMAKE_OPTIONS = -Wall --foreign
343 will cause the warnings in category 'portability' to be enabled, even
344 if those warnings are by default disabled in 'foreign' strictness.
346 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
348 Bugs fixed in 1.11.5:
350 * Bugs introduced by 1.11.3:
352 - Vala files with '.vapi' extension are now recognized and handled
353 correctly again. See automake bug#11222.
355 - Vala support work again for projects that contain some program
356 built from '.vala' (and possibly '.c') sources and some other
357 program built from '.c' sources *only*. See automake bug#11229.
359 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
363 * Miscellaneous changes:
365 - The 'ar-lib' script now ignores the "s" (symbol index) and "S" (no
366 symbol index) modifiers as well as the "s" action, as the symbol index
367 is created unconditionally by Microsoft lib. Also, the "q" (quick)
368 action is now a synonym for "r" (replace). Also, the script has been
369 ignoring the "v" (verbose) modifier already since Automake 1.11.3.
371 - When the 'compile' script is used to wrap MSVC, it now accepts an
372 optional space between the -I, -L and -l options and their respective
373 arguments, for better POSIX compliance.
375 - There is an initial, experimental support for automatic dependency
376 tracking with tcc (the Tiny C Compiler). Its associated depmode is
377 currently recognized as "icc" (but this and other details are likely
378 to change in future versions).
380 - Automatic dependency tracking now works also with the IBM XL C/C++
381 compilers, thanks to the new new depmode 'xlc'.
383 Bugs fixed in 1.11.4:
385 * Bugs introduced by 1.11.2:
387 - A definition of 'noinst_PYTHON' before 'python_PYTHON' (or similar)
388 don't cause spurious failures upon "make install" anymore.
390 - The user can now instruct the 'uninstall-info' rule not to update
391 the '${infodir}/dir' file by exporting the environment variable
392 'AM_UPDATE_INFO_DIR' to the value "no". This is done for consistency
393 with how the 'install-info' rule operates since automake 1.11.2.
395 * Long-standing bugs:
397 - It is now possible for a foo_SOURCES variable to hold Vala sources
398 together with C header files, as well as with sources and headers for
399 other supported languages (e.g., C++). Previously, only mixing C and
400 Vala sources was supported.
402 - If "aclocal --install" is used, and the first directory specified with
403 '-I' is non-existent, aclocal will now create it before trying to copy
406 - An empty declaration of a "foo_PRIMARY" don't cause anymore the
407 generated install rules to create an empty $(foodir) directory;
408 for example, if Makefile.am contains something like:
412 pkglibexec_SCRIPTS += bar.sh
415 the $(pkglibexec) directory will not be created upon "make install".
417 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
421 * Miscellaneous changes:
423 - Automake's own build system is more silent by default, making use of
424 the 'silent-rules' option.
426 - The master copy of the `gnupload' script is now maintained in gnulib,
429 - The `missing' script doesn't try to wrap calls to `tar' anymore.
431 - "make dist" doesn't wrap `tar' invocations with the `missing' script
432 anymore. Similarly, the obsolescent variable `$(AMTAR)' (which you
433 shouldn't be using BTW ;-) does not invoke the missing script anymore
434 to wrap tar, but simply invokes the `tar' program itself.
436 - "make dist" can now create lzip-compressed tarballs.
438 - In the Automake info documentation, the Top node and the nodes about
439 the invocation of the automake and aclocal programs have been renamed;
440 now, calling "info automake" will open the Top node, while calling
441 "info automake-invocation" and "info aclocal-invocation" will access
442 the nodes about the invocation of respectively automake and aclocal.
444 - Automake is now distributed as a gzip-compressed and an xz-compressed
445 tarball. Previously, bzip2 was used instead of xz.
447 - The last relics of Python 1.5 support have been removed from the
448 AM_PATH_PYTHON macro.
450 - For programs and libraries, automake now detects EXTRA_foo_DEPENDENCIES
451 and adds them to the normal list of dependencies, but without
452 overwriting the foo_DEPENDENCIES variable, which is normally computed
455 Bugs fixed in 1.11.3:
457 * Bugs introduced by 1.11.2:
459 - Automake now correctly recognizes the prefix/primary combination
460 `pkglibexec_SCRIPTS' as valid.
462 - The parallel-tests harness doesn't trip anymore on sed implementations
463 with stricter limits on the length of input lines (problem seen at
466 * Long-standing bugs:
468 - The "deleted header file problem" for *.am files is avoided by stub
469 rules. This allows `make' to trigger a rerun of `automake' also if
470 some previously needed `.am' file has been removed.
472 - The `silent-rules' option now generates working makefiles even
473 for the uncommon `make' implementations that do not support the
474 nested-variables extension to POSIX 2008. For such `make'
475 implementations, whether a build is silent is determined at
476 configure time, and cannot be overridden at make time with
477 `make V=0' or `make V=1'.
479 - Vala support now works better in VPATH setups.
481 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
485 * Changes to aclocal:
487 - The `--acdir' option is deprecated. Now you should use the new options
488 `--automake-acdir' and `--system-acdir' instead.
490 - The `ACLOCAL_PATH' environment variable is now interpreted as a
491 colon-separated list of additional directories to search after the
492 automake internal acdir (by default ${prefix}/share/aclocal-APIVERSION)
493 and before the system acdir (by default ${prefix}/share/aclocal).
495 * Miscellaneous changes:
497 - The Automake support for automatic de-ANSI-fication has been
498 deprecated. It will probably be removed in the next major Automake
501 - The `lzma' compression scheme and associated automake option `dist-lzma'
502 is obsoleted by `xz' and `dist-xz' due to upstream changes.
504 - You may adjust the compression options used in dist-xz and dist-bzip2.
505 The default is now merely -e for xz, but still -9 for bzip; you may
506 specify a different level via the XZ_OPT and BZIP2 envvars respectively.
507 E.g., "make dist-xz XZ_OPT=-7" or "make dist-bzip2 BZIP2=-5"
509 - The `compile' script now converts some options for MSVC for a better
510 user experience. Similarly, the new `ar-lib' script wraps Microsoft lib.
512 - The py-compile script now accepts empty arguments passed to the options
513 `--destdir' and `--basedir', and complains about unrecognized options.
514 Moreover, a non-option argument or a special `--' argument terminates
517 - A developer that needs to pass specific flags to configure at "make
518 distcheck" time can now, and indeed is advised to, do so by defining
519 the developer-reserved makefile variable AM_DISTCHECK_CONFIGURE_FLAGS,
520 instead of the old DISTCHECK_CONFIGURE_FLAGS.
521 The DISTCHECK_CONFIGURE_FLAGS variable should now be reserved for the
522 user; still, the old Makefile.am files that used to define it will
523 still continue to work as before.
525 - New macro AM_PROG_AR that looks for an archiver and wraps it in the new
526 'ar-lib' auxiliary script if the selected archiver is Microsoft lib.
527 This new macro is required for LIBRARIES and LTLIBRARIES when automake
528 is run with -Wextra-portability and -Werror.
530 - When using DejaGnu-based testsuites, the user can extend the `site.exp'
531 file generated by automake-provided rules by defining the special make
532 variable `$(EXTRA_DEJAGNU_SITE_CONFIG)'.
534 - The `install-info' rule can now be instructed not to create/update
535 the `${infodir}/dir' file, by exporting the new environment variable
536 `AM_UPDATE_INFO_DIR' to the value "no".
538 Bugs fixed in 1.11.2:
540 * Bugs introduced by 1.11:
542 - The parallel-tests driver no longer produces erroneous results with
543 Tru64/OSF 5.1 sh upon unreadable log files.
545 - The `parallel-tests' test driver does not report spurious successes
546 when used with concurrent FreeBSD make (e.g., "make check -j3").
548 - When the parallel-tests driver is in use, automake now explicitly
549 rejects invalid entries and conditional contents in TEST_EXTENSIONS,
550 instead of issuing confusing and apparently unrelated error messages
551 (e.g., "non-POSIX variable name", "bad characters in variable name",
552 or "redefinition of TEST_EXTENSIONS), or even, in some situations,
553 silently producing broken `Makefile.in' files.
555 - The `silent-rules' option now truly silences all compile rules, even
556 when dependency tracking is disabled. Also, when `silent-rules' is
557 not used, `make' output no longer contains spurious backslash-only
558 lines, thus once again matching what Automake did before 1.11.
560 - The AM_COND_IF macro also works if the shell expression for the
561 conditional is no longer valid for the condition.
563 * Long-standing bugs:
565 - The order of Yacc and Lex flags is fixed to be consistent with other
566 languages: $(AM_YFLAGS) comes before $(YFLAGS), and $(AM_LFLAGS) before
567 $(LFLAGS), so that the user variables override the developer variables.
569 - "make distcheck" now correctly complains also when "make uninstall"
570 leaves one and only one file installed in $(prefix).
572 - A "make uninstall" issued before a "make install", or after a mere
573 "make install-data" or a mere "make install-exec" does not spuriously
576 - Automake now warns about more primary/directory invalid combinations,
577 such as "doc_LIBRARIES" or "pkglib_PROGRAMS".
579 - Rules generated by Automake now try harder to not change any files when
580 `make -n' is invoked. Fixes include compilation of Emacs Lisp, Vala, or
581 Yacc source files and the rule to update config.h.
583 - Several scripts and the parallel-tests testsuite driver now exit with
584 the right exit status upon receiving a signal.
586 - A per-Makefile.am setting of -Werror does not erroneously carry over
587 to the handling of other Makefile.am files.
589 - The code for automatic dependency tracking works around a Solaris
590 make bug triggered by sources containing repeated slashes when the
591 `subdir-objects' option was used.
593 - The makedepend and hp depmodes now work better with VPATH builds.
595 - Java sources specified with check_JAVA are no longer compiled for
596 "make all", but only for "make check".
598 - An usage like "java_JAVA = foo.java" will now cause Automake to warn
599 and error out if `javadir' is undefined, instead of silently producing
600 a broken Makefile.in.
602 - aclocal and automake now honour the configure-time definitions of
603 AUTOCONF and AUTOM4TE when they spawn autoconf or autom4te processes.
605 - The `install-info' recipe no longer tries to guess whether the
606 `install-info' program is from Debian or from GNU, and adaptively
607 change its behaviour; this has proven to be frail and easy to
610 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
612 Bugs fixed in 1.11.1:
614 - Lots of minor bugfixes.
616 * Bugs introduced by 1.11:
618 - The `parallel-tests' test driver works around a GNU make 3.80 bug with
619 trailing white space in the test list (`TESTS = foo $(EMPTY)').
621 * Long standing bugs:
623 - On Darwin 9, `pythondir' and `pyexecdir' pointed below `/Library/Python'
624 even if the `--prefix' argument pointed outside of a system directory.
625 AM_PATH_PYTHON has been fixed to ignore the value returned from python's
626 `get_python_lib' function if it points outside the configured prefix,
627 unless the `--prefix' argument was either `/usr' or below `/System'.
629 - The testsuite does not try to change the mode of `ltmain.sh' files from
630 a Libtool installation (symlinked to test directories) any more.
632 - AM_PROG_GCJ uses AC_CHECK_TOOLS to look for `gcj' now, so that prefixed
633 tools are preferred in a cross-compile setup.
635 - The distribution is tarred up with mode 755 now by the `dist*' targets.
636 This fixes a race condition where untrusted users could modify files
637 in the $(PACKAGE)-$(VERSION) distdir before packing if the toplevel
638 build directory was world-searchable. This is CVE-2009-4029.
640 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
644 * Version requirements:
646 - Autoconf 2.62 or greater is required.
648 * Changes to aclocal:
650 - The autoconf version check implemented by aclocal in aclocal.m4
651 (and new in Automake 1.10) is degraded to a warning. This helps
652 in the common case where the Autoconf versions used are compatible.
654 * Changes to automake:
656 - The automake program can run multiple threads for creating most
657 Makefile.in files concurrently, if at least Perl 5.7.2 is available
658 with interpreter-based threads enabled. Set the environment variable
659 AUTOMAKE_JOBS to the maximum number of threads to use, in order to
660 enable this experimental feature.
662 * Changes to Libtool support:
664 - Libtool generic flags are now passed to the install and uninstall
667 - distcheck works with Libtool 2.x even when LT_OUTPUT is used, as
668 config.lt is removed correctly now.
672 - subdir-object mode works now with Fortran (F77, FC, preprocessed
673 Fortran, and Ratfor).
675 - For files with extension .f90, .f95, .f03, or .f08, the flag
676 $(FCFLAGS_f[09]x) computed by AC_FC_SRCEXT is now used in compile rules.
678 - Files with extension .sx are also treated as preprocessed assembler.
680 - The default source file extension (.c) can be overridden with
681 AM_DEFAULT_SOURCE_EXT now.
683 - Python 3.0 is supported now, Python releases prior to 2.0 are no
686 - AM_PATH_PYTHON honors python's idea about the site directory.
688 - There is initial support for the Vala programming language, when using
691 * Miscellaneous changes:
693 - Automake development is done in a git repository on Savannah now, see
695 http://git.sv.gnu.org/gitweb/?p=automake.git
697 A read-only CVS mirror is provided at
699 cvs -d :pserver:anonymous@pserver.git.sv.gnu.org:/automake.git \
700 checkout -d automake HEAD
702 - "make dist" can now create xz-compressed tarballs,
703 as well as (deprecated?) lzma-compressed tarballs.
705 - `automake --add-missing' will by default install the GPLv3 file as
706 COPYING if it is missing. It will also warn that the license file
707 should be added to source control. Note that Automake will never
708 overwrite an existing COPYING file, even when the `--force-missing'
711 - The manual is now distributed under the terms of the GNU FDL 1.3.
713 - Automake ships and installs man pages for automake and aclocal now.
715 - New shorthand `$(pkglibexecdir)' for `$(libexecdir)/@PACKAGE@'.
717 - install-sh supports -C, which does not update the installed file
718 (and its time stamps) if the contents did not change.
720 - The `gnupload' script has been revamped.
722 - The `depcomp' and `compile' scripts now work with MSVC under MSYS.
724 - The targets `install' and `uninstall' are more efficient now, in that
725 for example multiple files from one Automake variable such as
726 `bin_SCRIPTS' are copied in one `install' (or `libtool --mode=install')
727 invocation if they do not have to be renamed.
729 Both install and uninstall may sometimes enter (`cd' into) the target
730 installation directory now, when no build-local scripts are used.
732 Both install and uninstall do not fail anymore but do nothing if an
733 installation directory variable like `bindir' is set to the empty string.
735 For built-in rules, `make install' now fails reliably if installation
736 of a file failed. Conversely, `make uninstall' even succeeds when
737 issued multiple times.
739 These changes may need some adjustments from users: For example,
740 some `install' programs refuse to install multiple copies of the
741 same file in one invocation, so you may need to remove duplicate
742 entries from file lists.
744 Also, within one set of files, say, nobase_data_DATA, the order of
745 installation may be changed, or even unstable among different hosts,
746 due to the use of associative arrays in awk. The increased use of
747 awk matches a similar move in Autoconf to provide for better scaling.
749 Further, most undocumented per-rule install command variables such as
750 binSCRIPT_INSTALL have been removed because they are not needed any
751 more. Packages which use them should be using the appropriate one of
752 INSTALL_{DATA,PROGRAM,SCRIPT} or their install_sh_{DATA,PROGRAM,SCRIPT}
753 counterpart, depending on the type of files and the need for automatic
754 target directory creation.
756 - The "deleted header file problem" for *.m4 files is avoided by
757 stub rules. This allows `make' to trigger a rerun of `aclocal'
758 also if some previously needed macro file has been removed.
760 - Rebuild rules now also work for a removed `subdir/Makefile.in' in
761 an otherwise up to date tree.
763 - The `color-tests' option causes colored test result output on terminals.
765 - The `parallel-tests' option enables a new test driver that allows for
766 parallel test execution, inter-test dependencies, lazy test execution
767 for unit-testing, re-testing only failed tests, and formatted result output
768 as RST (reStructuredText) and HTML. Enabling this option may require some
769 changes to your test suite setup; see the manual for details.
771 - The `silent-rules' option enables Linux kernel-style silent build output.
772 This option requires the widely supported but non-POSIX `make' feature
773 of recursive variable expansion, so do not use it if your package needs
774 to build with `make' implementations that do not support it.
776 To enable less verbose build output, the developer has to use the Automake
777 option `silent-rules' in `AM_INIT_AUTOMAKE', or call the `AM_SILENT_RULES'
778 macro. The user may then set the default verbosity by passing the
779 `--enable-silent-rules' option to `configure'. At `make' run time, this
780 default may be overridden using `make V=0' for less verbose, and `make V=1'
781 for backward-compatible verbose output.
783 - New prefix `notrans_' for manpages which should not be transformed
784 by --program-transform.
786 - New macro AM_COND_IF for conditional evaluation and conditional
789 - For AC_CONFIG_LINKS, if source and destination are equal, do not
790 remove the file in a non-VPATH build. Such setups work with Autoconf
793 - AM_MAINTAINER_MODE now allows for an optional argument specifying
796 - AM_SUBST_NOTMAKE may prevent substitution of AC_SUBSTed variables,
797 useful especially for multi-line values.
799 - Automake's early configure-time sanity check now diagnoses an
800 unsafe absolute source directory name and makes configure fail.
802 - The Automake macros and rules cope better with whitespace in the
803 current directory name, as long as the relative path to `configure'
804 does not contain whitespace. To this end, the values of `$(MISSING)'
805 and `$(install_sh)' may contain suitable quoting, and their expansion
806 might need `eval'uation if used outside of a makefile. These
807 undocumented variables may be used in several documented macros such
808 as $(AUTOCONF) or $(MAKEINFO).
812 * Long-standing bugs:
814 - Fix aix dependency tracking for libtool objects.
816 - Work around AIX sh quoting issue in AC_PROG_CC_C_O, leading to
817 unnecessary use of the `compile' script.
819 - For nobase_*_LTLIBRARIES with nonempty directory components, the
820 correct `-rpath' argument is used now.
822 - `config.status --file=Makefile depfiles' now also works with the
823 extra quoting used internally by Autoconf 2.62 and newer
824 (it used to work only without the `--file=' bit).
826 - The `missing' script works better with versioned tool names.
828 - Semantics for `missing help2man' have been revamped:
830 Previously, if `help2man' was not present, `missing help2man' would have
831 the following semantics: if some man page was out of date but present, then
832 a warning would be printed, but the exit status was 0. If the man page was
833 not present at all, then `missing' would create a replacement man page
834 containing an error message, and exit with a status of 2. This does not play
835 well with `make': the next run will see this particular man page as being up
836 to date, and will only error out on the next generated man page, if any;
837 repeat until all pages are done. This was not desirable.
839 These are the new semantics: if some man page is not present, and help2man
840 is not either, then `missing' will warn and generate the replacement page
841 containing the error message, but exit successfully. However, `make dist'
842 will ensure that no such bogus man pages are packaged into a tarball.
844 - Targets provided by automake behave better with `make -n', in that they
845 take care not to create files.
847 - `config.status Makefile... depfiles' works fine again in the presence of
848 disabled dependency tracking.
850 - The default no-op recursive rules for these targets also work with BSD make
851 now: html, install-html, install-dvi, install-pdf, install-pdf, install-info.
853 - `make distcheck' works also when both a directory and some file below it
854 have been added to a distribution variable, such as EXTRA_DIST or *_SOURCES.
856 - Texinfo dvi, ps, pdf, and html output files are not removed upon
857 `make mostlyclean' any more; only the LaTeX by-products are.
859 - Renamed objects also work with the `subdir-objects' option and
860 source file languages which Automake does not know itself.
862 - `automake' now correctly complains about variable assignments which are
863 preceded by a comment, extend over multiple lines with backslash-escaped
864 newlines, and end in a comment sign. Previous versions would silently
865 and wrongly ignore such assignments completely.
867 * Bugs introduced by 1.10:
869 - Fix output of dummy dependency files in presence of post-processed
870 Makefile.in's again, but also cope with long lines.
872 - $(EXEEXT) is automatically appended to filenames of XFAIL_TESTS
873 that have been declared as programs in the same Makefile.
874 This is for consistency with the analogous change to TESTS in 1.10.
876 - Fix order of standard includes to again be `-I. -I$(srcdir)',
877 followed by directories containing config headers.
879 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
883 * Version requirements:
885 - Autoconf 2.60 or greater is required.
887 - Perl 5.6 or greater is required.
889 * Changes to aclocal:
891 - aclocal now also supports -Wmumble and -Wno-mumble options.
893 - `dirlist' entries (for the aclocal search path) may use shell
894 wildcards such as `*', `?', or `[...]'.
896 - aclocal supports an --install option that will cause system-wide
897 third-party macros to be installed in the local directory
898 specified with the first -I flag. This option also uses #serial
899 lines in M4 files to upgrade local macros.
901 The new aclocal options --dry-run and --diff help to review changes
902 before they are installed.
904 - aclocal now outputs an autoconf version check in aclocal.m4 in
905 projects using automake.
907 For a few years, automake and aclocal have been calling autoconf
908 (or its underlying engine autom4te) to accurately retrieve the
909 data they need from configure.ac and its siblings. Doing so can
910 only work if all autotools use the same version of autoconf. For
911 instance a Makefile.in generated by automake for one version of
912 autoconf may stop working if configure is regenerated with another
913 version of autoconf, and vice versa.
915 This new version check ensures that the whole build system has
916 been generated using the same autoconf version.
918 * Support for new Autoconf macros:
920 - The new AC_REQUIRE_AUX_FILE Autoconf macro is supported.
922 - If `subdir-objects' is set, and AC_CONFIG_LIBOBJ_DIR is specified,
923 $(LIBOBJS), $(LTLIBOBJS), $(ALLOCA), and $(LTALLOCA) can be used
924 in different directories. However, only one instance of such a
925 library objects directory is supported.
927 * Change to Libtool support:
929 - Libtool generic flags (those that go before the --mode=MODE option)
930 can be specified using AM_LIBTOOLFLAGS and target_LIBTOOLFLAGS.
932 * Yacc and Lex changes:
934 - The rebuild rules for distributed Yacc and Lex output will avoid
935 overwriting existing files if AM_MAINTAINER_MODE and maintainer-mode
938 - ylwrap is now always used for lex and yacc source files,
939 regardless of whether there is more than one source per directory.
943 - Preprocessed assembler (*.S) compilation now honors CPPFLAGS,
944 AM_CPPFLAGS and per-target _CPPFLAGS, and supports dependency
945 tracking, unlike non-preprocessed assembler (*.s).
947 - subdir-object mode works now with Assembler. Automake assumes
948 that the compiler understands `-c -o'.
950 - Preprocessed assembler (*.S) compilation now also honors
951 $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES).
953 - Improved support for Objective C:
954 - Autoconf's new AC_PROG_OBJC will enable automatic dependency tracking.
955 - A new section of the manual documents the support.
957 - New support for Unified Parallel C:
958 - AM_PROG_UPC looks for a UPC compiler.
959 - A new section of the manual documents the support.
961 - Per-target flags are now correctly handled in link rules.
963 For instance maude_CFLAGS correctly overrides AM_CFLAGS; likewise
964 for maude_LDFLAGS and AM_LDFLAGS. Previous versions bogusly
965 preferred AM_CFLAGS over maude_CFLAGS while linking, and they
966 used both AM_LDFLAGS and maude_LDFLAGS on the same link command.
968 The fix for compiler flags (i.e., using maude_CFLAGS instead of
969 AM_CFLAGS) should not hurt any package since that is how _CFLAGS
970 is expected to work (and actually works during compilation).
972 However using maude_LDFLAGS "instead of" AM_LDFLAGS rather than
973 "in addition to" breaks backward compatibility with older versions.
974 If your package used both variables, as in
976 AM_LDFLAGS = common flags
978 a_LDFLAGS = more flags
981 and assumed *_LDFLAGS would sum up, you should rewrite it as
983 AM_LDFLAGS = common flags
985 a_LDFLAGS = $(AM_LDFLAGS) more flags
988 This new behavior of *_LDFLAGS is more coherent with other
989 per-target variables, and the way *_LDFLAGS variables were
990 considered internally.
992 * New installation targets:
994 - New targets mandated by GNU Coding Standards:
999 By default they will only install Texinfo manuals.
1000 You can customize them with *-local variants:
1006 - The undocumented recursive target `uninstall-info' no longer exists.
1007 (`uninstall' is in charge of removing all possible documentation
1008 flavors, including optional formats such as dvi, ps, or info even
1009 when `no-installinfo' is used.)
1011 * Miscellaneous changes:
1013 - Automake no longer complains if input files for AC_CONFIG_FILES
1014 are specified using shell variables.
1016 - clean, distribution, or rebuild rules are normally disabled for
1017 inputs and outputs of AC_CONFIG_FILES, AC_CONFIG_HEADERS, and
1018 AC_CONFIG_LINK specified using shell variables. However, if these
1019 variables are used as ${VAR}, and AC_SUBSTed, then Automake will
1020 be able to output rules anyway.
1021 (See the Automake documentation for AC_CONFIG_FILES.)
1023 - $(EXEEXT) is automatically appended to filenames of TESTS
1024 that have been declared as programs in the same Makefile.
1025 This is mostly useful when some check_PROGRAMS are listed in TESTS.
1027 - `-Wportability' has finally been turned on by default for `gnu' and
1028 `gnits' strictness. This means, automake will complain about %-rules
1029 or $(GNU Make functions) unless you switch to `foreign' strictness or
1030 use `-Wno-portability'.
1032 - Automake now uses AC_PROG_MKDIR_P (new in Autoconf 2.60), and uses
1033 $(MKDIR_P) instead of $(mkdir_p) to create directories. The
1034 $(mkdir_p) variable is still defined (to the same value as
1035 $(MKDIR_P)) but should be considered obsolete. If you are using
1036 $(mkdir_p) in some of your rules, please plan to update them to
1037 $(MKDIR_P) at some point.
1039 - AM_C_PROTOTYPES and ansi2knr are now documented as being obsolete.
1040 They still work in this release, but may be withdrawn in a future one.
1042 - Inline compilation rules for gcc3-style dependency tracking are
1045 - Automake installs a "Hello World!" example package in $(docdir).
1046 This example is used throughout the new "Autotools Introduction"
1047 chapter of the manual.
1049 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1053 * Makefile.in bloat reduction:
1055 - Inference rules are used to compile sources in subdirectories when
1056 the `subdir-objects' option is used and no per-target flags are
1057 used. This should reduce the size of some projects a lot, because
1058 Automake used to output an explicit rule for each such object in
1061 - Automake no longer outputs three rules (.o, .obj, .lo) for each
1062 object that must be built with explicit rules. It just outputs
1063 the rules required to build the kind of object considered: either
1064 the two .o and .obj rules for usual objects, or the .lo rule for
1067 * Change to Libtool support:
1069 - Libtool tags are used with libtool versions that support them.
1070 (I.e., with Libtool 1.5 or greater.)
1072 - Automake is now able to handle setups where a libtool library is
1073 conditionally installed in different directories, as in
1076 lib_LTLIBRARIES = liba.la
1078 pkglib_LTLIBRARIES = liba.la
1080 liba_la_SOURCES = ...
1082 * Changes to aclocal:
1084 - aclocal now ensures that AC_DEFUNs and AU_DEFUNs it discovers are
1085 really evaluated, before it decides to include them in aclocal.m4.
1086 This solves nasty problems with conditional redefinitions of
1087 Autoconf macros in /usr/share/aclocal/*.m4 files causing extraneous
1088 *.m4 files to be included in any project using these macros.
1089 (Calls to AC_PROG_EGREP causing libtool.m4 to be included is the
1090 most famous instance of this bug.)
1092 - Do not complain about missing conditionally AC_REQUIREd macros
1093 that are not actually used. In 1.8.x aclocal would correctly
1094 determine which of these macros were really needed (and include
1095 only these in the package); unfortunately it would also require
1096 all of them to be present in order to run. This created
1097 situations were aclocal would not work on a tarball distributing
1098 all the macros it uses. For instance running aclocal on a project
1099 containing only the subset of the Gettext macros in use by the
1100 project did not work, because gettext conditionally requires other
1103 * Portability improvements:
1105 - Tar format can be chosen with the new options tar-v7, tar-ustar, and
1106 tar-pax. The new option filename-length-max=99 helps diagnosing
1107 filenames that are too long for tar-v7. (PR/414)
1109 - Variables aumented with `+=' are now automatically flattened (i.e.,
1110 trailing backslashes removed) and then wrapped around 80 colummns
1111 (adding trailing backslashes). In previous versions, a long series
1117 would result in a single-line definition of VAR that could possibly
1118 exceed the maximum line length of some make implementations.
1120 Non-augmented variables are still output as they are defined in
1125 - Support Fortran 90/95 with the new "fc" and "ppfc" languages.
1126 Works the same as the old Fortran 77 implementation; just replace
1127 F77 with FC everywhere (exception: FFLAGS becomes FCFLAGS).
1128 Requires a version of autoconf which provides AC_PROG_FC (>=2.59).
1130 - Support for conditional _LISP.
1132 - Support for conditional -hook and -local rules (PR/428).
1134 - Diagnose AC_CONFIG_AUX_DIR calls following AM_INIT_AUTOMAKE. (PR/49)
1136 - Automake will not write any Makefile.ins after the first error it
1137 encounters. The previous Makefile.ins (if any) will be left in
1138 place. (Warnings will not prevent output, but remember they can
1139 be turned into errors with -Werror.)
1141 - The restriction that SUBDIRS must contain direct children is gone.
1144 - The manual tells more about SUBDIRS vs. DIST_SUBDIRS.
1145 It also gives an example of nested packages using AC_CONFIG_SUBDIRS.
1147 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1149 Bugs fixed in 1.8.5:
1151 * Long-standing bugs:
1153 - Define DIST_SUBDIRS even when the `no-dist' or `cygnus' options are used
1154 so that `make distclean' and `make maintainer-clean' can work.
1156 - Define AR and ARFLAGS even when only EXTRA_LIBRARIES are defined.
1158 - Fix many rules to please FreeBSD make, which runs commands with `sh -e'.
1160 - Polish diagnostic when no input file is found.
1162 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1164 Bugs fixed in 1.8.4:
1166 * Long-standing bugs:
1168 - Fix AM_PATH_PYTHON to correctly display $PYTHON when it has been
1169 overridden by the user.
1171 - Honor PATH_SEPARATOR in various places of the Automake package, for
1174 - Adjust dependency tracking mode detection to ICC 8.0's new output.
1177 - Fix install-sh so it can install the `mv' binary... using `mv'.
1179 - Fix tru64 dependency tracking for libtool objects.
1181 - Work around Exuberant Ctags when creating a TAGS files in a directory
1182 without files to scan but with subdirectories to include.
1184 * Bugs introduced by 1.8:
1186 - Fix an "internal error" when @LIBOBJS@ is used in a variable that is
1187 not defined in the same conditions as the _LDADD that uses it.
1189 - Do not warn when JAVAROOT is overridden, this is legitimate.
1191 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1193 Bugs fixed in 1.8.3:
1195 * Long-standing bugs:
1197 - Quote filenames in installation rules, in case $DESTDIR, $prefix,
1198 or any of the other *dir variables contain a space.
1200 Please note that Automake does not and cannot support spaces in
1201 filenames that are involved during the build. This change affects
1202 only installation paths, so that `make install' does not bomb out
1203 in packages configured with
1204 ./configure --prefix '/c/Program Files'
1206 - Fix the depfiles output so it works with GNU sed (<4.1) even when
1207 POSIXLY_CORRECT is set.
1209 - Do not AC_SUBST(LIBOBJS) in AM_WITH_REGEX. This macro was unusable
1210 since Autoconf 2.54, which defines LIBOBJS itself.
1212 - Fix a potential (but unlikely) race condition in parallel elisp
1213 builds. (Introduced in 1.7.3.)
1215 - Do not assume that users override _DEPENDENCIES in all conditions
1216 where Automake will try to define them.
1218 - Do not use `mkdir -p' in mkinstalldirs, unless this is GNU mkdir.
1219 Solaris 8's `mkdir -p' is not thread-safe and can break parallel
1222 This fix also affects the $(mkdir_p) variable defined since
1223 Automake 1.8. It will be set to `mkdir -p' only if mkdir is GNU
1224 mkdir, and to `mkinstalldirs' or `install-sh -d' otherwise.
1226 - Secure temporary directory creation in `make distcheck'. (PR/413)
1228 - Do not generate two build rules for `parser.h' when the
1229 parser appears in two different conditionals.
1231 - Work around a Solaris 8 /bin/sh bug in the test for dependency
1232 checking. Usually ./configure will not pick this shell; so this
1233 fix only helps cases where the shell is forced to /bin/sh.
1235 * Bugs introduced by 1.8:
1237 - In some situations (hand-written `m4_include's), aclocal would
1238 call the `File::Spec->rel2abs' method, which was only introduced
1239 in Perl 5.6. This new version reestablish support Perl 5.005.
1241 It is likely that the next major Automake releases will require at
1242 least Perl 5.6. Consider upgrading your development environment
1243 if you are still using the five-year-old Perl 5.005.
1245 - Automake would sometimes fail to define rules for targets listed
1246 in variables defined in multiple conditions. For instance on
1252 it would define only the `a.$(OBJEXT): a.c' rule and omit the
1253 `b.$(OBJEXT): b.c' rule.
1255 * New sections in manual:
1257 - Third-Party Makefiles: how to interface third party Makefiles.
1258 - Upgrading: upgrading packages to newer Automake versions.
1259 - Multiple Outputs: handling tools that produce many outputs.
1261 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1265 * A (well known) portability bug slipped in the changes made to
1266 install-sh in Automake 1.8.1. The broken install-sh would refuse to
1267 install anything on Tru64.
1269 * Fix install rules for conditionally built python files. (This never
1272 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1276 * Bugs introduced by 1.8:
1278 - Fix Config.pm import error with old Perl versions (at least
1279 5.005_03). One symptom is that aclocal could not find its macro
1282 - Automake 1.8 used `mkdir -m 0755 -p --' to ensure that directories
1283 created by `make install' are always world readable, even if the
1284 installer happens to have an overly restrictive umask (e.g. 077).
1285 This was a mistake and has been reverted. There are at least two
1286 reasons why we must not use `-m 0755':
1287 - it causes special bits like SGID to be ignored,
1288 - it may be too restrictive (some setups expect 775 directories).
1290 - Fix aclocal to honor definitions located in files which have been
1291 m4_included manually. aclocal 1.8 had been updated to check
1292 m4_included files for new requirements, but forgot that these
1293 m4_included files can also provide new definitions.
1295 Note that if you have such a setup, we recommend you get rid of
1296 it. In the past, there was a reason to m4_include files manually:
1297 aclocal used to duplicate entire M4 files into aclocal.m4, even
1298 files that were distributed. Some packages were therefore
1299 m4_including the distributed file directly, and playing some
1300 tricks to ensure aclocal would not copy that file to aclocal.m4,
1301 in order to limit the amount of duplication. Since aclocal 1.8.x
1302 will precisely output m4_includes for local M4 files, we recommend
1303 that you clean up your setup, removing all manual m4_includes and
1304 letting aclocal output them.
1306 - Output detailed menus in the Info version if the Automake manual,
1307 so that Emacs can locate the indexes.
1309 - configure.ac and configure were listed twice in DIST_COMMON (an
1310 internal variable where Automake lists configury files to
1311 distribute). This was harmless, but unaesthetic.
1313 - Use `chmod a-w' instead of `chmod -w' as the latter honors umask.
1314 This was an issue only in the Automake package itself, not in
1317 - Automake assumed that all AC_CONFIG_LINKS arguments had the form
1318 DEST:SRC. This was wrong, as some packages do
1319 AC_CONFIG_LINKS($computedlinks). This version no longer abort in
1322 - Contrary to mkinstalldirs, $(mkdir_p) was expecting exactly one
1323 argument. This caused two kinds of failures:
1324 - Rules installing data in a conditionally defined directory
1325 failed when that directory was undefined. In this case no
1326 argument was supplied.
1327 - `make installdirs' failed, because several directories were
1328 passed to $(mkdir_p). This was an issue only on platform
1329 were $(mkdir_p) is implemented with `install-sh -d'.
1330 $(mkdir_p) as been changed to accept 0 or more arguments, as
1333 * Long-standing bugs:
1335 - Fix an unexpected diagnostic occurring when users attempt
1336 to override some internal variables that Automake appends to.
1338 - aclocal now scans configure.ac for macro definitions (PR/319).
1340 - Fix a portability issue with OSF1/Tru64 Make. If a directory
1341 distributes files which are outside itself (this usually occurs
1342 when using AC_CONFIG_AUX_DIR([../dir]) to use auxiliary files
1343 from a parent package), then `make distcheck' fails due to an
1344 optimization performed by OSF1/Tru64 Make in its VPATH handling.
1345 (tests/subpkg2.test failure)
1347 - Fix another portability issue with Sun and OSF1/Tru64 Make.
1348 In a VPATH-build configuration, `make install' would install
1349 nobase_ files to wrong locations.
1351 - Fix a Perl `uninitialized value' diagnostic occurring when
1352 automake complains that a Texinfo file does not have a
1353 @setfilename statement.
1355 - Erase config.status.lineno during `make distclean'. This file
1356 can be created by config.status. Automake already knew about
1357 configure.lineno, but forgot config.status.lineno.
1359 - Distribute all files, even those which are built and installed
1360 conditionally. This change affects files listed in conditionally
1361 defined *_HEADERS and *_PYTHON variable (unless they are nodist_*)
1362 as well as those listed in conditionally defined dist_*_DATA,
1363 dist_*_JAVA, dist_*_LISP, and dist_*_SCRIPTS variables.
1365 - Fix AM_PATH_LISPDIR to avoid \? in sed regular expressions; it
1366 doesn't conform to POSIX.
1368 - Normalize help strings for configure variables and options added
1373 - Check for python2.4 in AM_PATH_PYTHON.
1375 * Spurious failures in test suite:
1377 - tests/libtool5.test, tests/ltcond.test, tests/ltcond2.test,
1378 tests/ltconv.test: fix failures with CVS Libtool.
1379 - tests/aclocal6.test: fix failure if autom4te.cache is disabled.
1380 - tests/txinfo24.test, tests/txinfo25.test, tests/txinfo28.test:
1381 fix failures with old Texinfo versions.
1383 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1389 - The NEWS file is more verbose.
1393 - Autoconf 2.58 or greater is required.
1397 - Default source file names in the absence of a _SOURCES declaration
1398 are made by removing any target extension before appending `.c', so
1399 to make the libtool module `foo.la' from `foo.c', you only need to
1402 lib_LTLIBRARIES = foo.la
1403 foo_la_LDFLAGS = -module
1405 For backward compatibility, foo_la.c will be used instead of
1406 foo.c if this file exists or is the explicit target of a rule.
1407 However -Wobsolete will warn about this deprecated naming.
1409 - AR's `cru' flags are now set in a global ARFLAGS variable instead
1410 of being hard-coded in each $(AR) invocation, so they can be
1411 substituted from configure.ac. This has been requested by people
1412 dealing with non-POSIX ar implementations.
1414 - New warning option: -Woverride. This will warn about any user
1415 target or variable definitions which override Automake
1418 - Texinfo rules back up and restore info files when makeinfo fails.
1420 - Texinfo rules now support the `html' target.
1421 Running this requires Texinfo 4.0 or greater.
1423 `html' is a new recursive target, so if your package mixes
1424 hand-crafted `Makefile.in's with Automake-generated
1425 `Makefile.in's, you should adjust the former to support (or
1426 ignore) this target so that `make html' recurses successfully. If
1427 you had a custom `html' rule in your `Makefile.am', it's better to
1428 rename it as `html-local', otherwise your rule will override
1429 Automake's new rule (you can check that by running `automake
1430 -Woverride') and that will stop the recursion to subdirectories.
1432 Last but not least, this `html' rule is declared PHONY, even when
1433 overridden. Fortunately, it appears that few packages use a
1434 non-PHONY `html' rule.
1436 - Any file which is m4_included from configure.ac will appear as a
1437 configure and Makefile.in dependency, and will be automatically
1440 - The rules for rebuilding Makefiles and Makefile.ins will now
1441 rebuild all Makefiles and all Makefile.ins at once when one of
1442 configure's dependencies has changed. This is considerably faster
1443 than previous implementations, where config.status and automake
1444 were run separately in each directory (this still happens when you
1445 change a Makefile.am locally, without touching configure.ac or
1446 friends). Doing this also solves a longstanding issue: these
1447 rebuild rules failed to work when adding new directories to the
1448 tree, forcing you to run automake manually.
1450 - For similar reasons, the rules to rebuild configure,
1451 config.status, and aclocal.m4 are now defined in all directories.
1452 Note that if you were using the CONFIG_STATUS_DEPENDENCIES and
1453 CONFIGURE_DEPENDENCIES (formerly undocumented) variables, you
1454 should better define them in all directories. This is easily done
1455 using an AC_SUBST (make sure you prefix these dependencies with
1456 $(top_srcdir) since this variable will appear at different
1457 levels of the build tree).
1459 - aclocal will now use `m4_include' instead of copying local m4
1460 files into aclocal.m4. (Local m4 files are those you ship with
1461 your project, other files will be copied as usual.)
1463 Because m4_included files are automatically distributed, it means
1464 for most projects there is no point in EXTRA_DISTing the list of
1465 m4 files which are used. (You can probably get rid of
1466 m4/Makefile.am if you had one.)
1468 - aclocal will avoid touching aclocal.m4 when possible, so that
1469 Autom4te's cache isn't needlessly invalidated. This behavior can
1470 be switched off with the new `--force' option.
1472 - aclocal now uses Autoconf's --trace to detect macros which are
1473 actually used and will no longer include unused macros simply
1474 because they where mentioned. This was often the case for macros
1475 called conditionally.
1477 - New options no-dist and no-dist-gzip.
1479 - compile, depcomp, elisp-comp, install-sh, mdate-sh, mkinstalldirs,
1480 py-compile, and ylwrap, now all understand --version and --help.
1482 - Automake will now recognize AC_CONFIG_LINKS so far as removing created
1483 links as part of the distclean target and including source files in
1486 - AM_PATH_PYTHON now supports ACTION-IF-FOUND and ACTION-IF-NOT-FOUND
1487 argument. The latter can be used to override the default behavior
1488 (which is to abort).
1490 - Automake will exit with $? = 63 on version mismatch. (So does
1491 Autoconf 2.58) missing knows this, and in this case it will
1492 emulate the tools as if they were absent. Because older versions
1493 of Automake and Autoconf did not use this exit code, this change
1494 will only be useful in projects generated with future versions of
1497 - When using AC_CONFIG_FILES with multiple input files, Automake
1498 generates the first ".in" input file for which a ".am" exists.
1499 (Former versions would try to use only the first input file.)
1501 - lisp_DATA is now allowed. If you are using the empty ELCFILES
1502 idiom to disable byte-compilation of lisp_LISP files, it is
1503 recommended that you switch to using lisp_DATA. Note that
1504 this is not strictly equivalent: lisp_DATA will install elisp
1505 files even if emacs is not installed, while *_LISP do not
1506 install anything unless emacs is found.
1508 - Makefiles will prefer `mkdir -p' over mkinstalldirs if it is
1509 available. This selection is achieved through the Makefile
1510 variable $(mkdir_p) that is set by AM_INIT_AUTOMAKE to either
1511 `mkdir -m 0755 -p --', `$(mkinstalldirs) -m 0755', or
1512 `$(install_sh) -m 0755 -d'.
1516 - Because `mkdir -p' is available on most platforms, and we can use
1517 `install-sh -d' when it is not, the use of the mkinstalldirs
1518 script is being phased out. `automake --add-missing' no longer
1519 installs it, and if you remove mkinstalldirs from your package,
1520 automake will define $(mkinstalldirs) as an alias for $(mkdir_p).
1522 Gettext 0.12.1 still requires mkinstalldirs. Fortunately
1523 gettextize and autopoint will install it when needed. Automake
1524 will continue to define the $(mkinstalldirs) and to distribute
1525 mkinstalldirs when this script is in the source tree.
1527 - AM_PROG_CC_STDC is now empty. The content of this macro was
1528 merged in AC_PROG_CC. If your code uses $am_cv_prog_cc_stdc, you
1529 should adjust it to use $ac_cv_prog_cc_stdc instead. (This
1530 renaming should be safe, even if you have to support several,
1531 versions of Automake, because AC_PROG_CC defines this variable
1532 since Autoconf 2.54.)
1534 - Some users where using the undocumented ACLOCAL_M4_SOURCES
1535 variable to override the aclocal.m4 dependencies computed
1536 (inaccurately) by older versions of Automake. Because Automake
1537 now tracks configure's m4 dependencies accurately (see m4_include
1538 above), the use of ACLOCAL_M4_SOURCES should be considered
1539 obsolete and will be flagged as such when running `automake
1544 - Defining programs conditionally using Automake conditionals no
1545 longer leads to a combinatorial explosion. The following
1546 construct used to be troublesome when used with dozens of
1561 Likewise for _SOURCES, _LDADD, and _LIBADD variables.
1563 - Due to implementation constraints, previous versions of Automake
1564 proscribed multiple conditional definitions of some variables
1574 All _PROGRAMS, _LDADD, and _LIBADD variables were affected.
1575 This restriction has been lifted, and these variables now
1576 support multiple conditional definitions as do other variables.
1578 - Cleanup the definitions of $(distdir) and $(top_distdir).
1579 $(top_distdir) now points to the root of the distribution
1580 directory created during `make dist', as it did in Automake 1.4,
1581 not to the root of the build tree as it did in intervening
1582 versions. Furthermore these two variables are now only defined in
1583 the top level Makefile, and passed to sub-directories when running
1586 - The --no-force option now correctly checks the Makefile.in's
1587 dependencies before deciding not to update it.
1589 - Do not assume that make files are called Makefile in cleaning rules.
1591 - Update .info files in the source tree, not in the build tree. This
1592 is what the GNU Coding Standard recommend. Only Automake 1.7.x
1593 used to update these files in the build tree (previous versions did
1594 it in the source tree too), and it caused several problems, varying
1595 from mere annoyance to portability issues.
1597 - COPYING, COPYING.LIB, and COPYING.LESSER are no longer overwritten
1598 when --add-missing and --force-missing are used. For backward
1599 compatibility --add-missing will continue to install COPYING (in
1600 `gnu' strictness) when none of these three files exist, but this
1601 use is deprecated: you should better choose a license yourself and
1602 install it once for all in your source tree (and in your code
1605 - Fix ylwrap so that it does not overwrite header files that haven't
1606 changed, as the inline rule already does.
1608 - User-defined rules override automake-defined rules for the same
1609 targets, even when rules do not have commands. This is not new
1610 (and was documented), however some of the automake-generated
1611 rules have escaped this principle in former Automake versions.
1612 Rules for the following targets are affected by this fix:
1614 clean, clean-am, dist-all, distclean, distclean-am, dvi, dvi-am,
1615 info, info-am, install-data-am, install-exec-am, install-info,
1616 install-info-am, install-man, installcheck-am, maintainer-clean,
1617 maintainer-clean-am, mostlyclean, mostlyclean-am, pdf, pdf-am,
1618 ps, ps-am, uninstall-am, uninstall-info, uninstall-man
1620 Practically it means that an attempt to supplement the dependencies
1621 of some target, as in
1623 clean: my-clean-rule
1625 will now *silently override* the automake definition of the
1626 rule for this target. Running `automake -Woverride' will diagnose
1627 all such overriding definitions.
1629 It should be noted that almost all these targets support a *-local
1630 variant that is meant to supplement the automake-defined rule
1631 (See node `Extending' in the manual). The above rule should
1634 clean-local: my-clean-rule
1636 These *-local targets have been documented since at least
1637 Automake 1.2, so you should not fear the change if you have
1638 to support multiple automake versions.
1642 - The Automake manual is now distributed under the terms of the GNU FDL.
1644 - Targets dist-gzip, dist-bzip2, dist-tarZ, dist-zip are always defined.
1646 - core dumps are no longer removed by the cleaning rules. There are
1647 at least three reasons for this:
1648 1. These files should not be created by any build step,
1649 so their removal do not fit any of the cleaning rules.
1650 Actually, they may be precious to the developer.
1651 2. If such file is created during a build, then it's clearly a
1652 bug Automake should not hide. Not removing the file will
1653 cause `make distcheck' to complain about its presence.
1654 3. Operating systems have different naming conventions for
1655 core dump files. A core file on one system might be a
1656 completely legitimate data file on another system.
1658 - RUNTESTFLAGS, CTAGSFLAGS, ETAGSFLAGS, JAVACFLAGS are no longer
1659 defined by Automake. This means that any definition in the
1660 environment will be used, unless overridden in the Makefile.am or
1661 on the command line. The old behavior, where these variables were
1662 defined empty in each Makefile, can be obtained by AC_SUBSTing or
1663 AC_ARG_VARing each variable from configure.ac.
1665 - CONFIGURE_DEPENDENCIES and CONFIG_STATUS_DEPENDENCIES are now
1666 documented. (The is not a new feature, these variables have
1667 been there since at least Automake 1.4.)
1669 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1671 Bugs fixed in 1.7.9:
1672 * Fix install-strip to work with nobase_ binaries.
1673 * Fix renaming of #line directives in ylwrap.
1674 * Rebuild with Autoconf 2.59. (1.7.8 was not installable with pdksh.)
1676 Bugs fixed in 1.7.8:
1677 * Remove spurious blank lines in cleaning rules introduced in 1.7.7.
1678 * Fix detection of Debian's install-info, broken since version 1.5.
1679 (Debian bug #213524).
1680 * Honor -module if it appears in AM_LDFLAGS (i.e., relax name checking)
1681 This was only done for libfoo_LDFLAGS and LDFLAGS in previous versions.
1683 Bugs fixed in 1.7.7:
1684 * The implementation of automake's --no-force option is unreliable,
1685 so this option is ignored in this version. A real fix will appear in
1686 Automake 1.8. (Debian Bug #206299)
1687 * AM_PATH_PYTHON: really check the whole list of interpreters if no
1688 argument is given. (PR/399)
1689 * Do not warn about leading `_' in variable names, even with -Wportability.
1690 * Support user redefinitions of TEXINFO_TEX.
1691 * depcomp: support AIX Compiler version 6.
1692 * Fix missing rebuilds during `make dist' with BSD make.
1693 (Could produce tarballs containing out-of-date files.)
1694 * Resurrect multilib support.
1695 * Noteworthy manual updates:
1696 - Extending aclocal: how to write m4 macros that won't trigger warnings
1698 - A Shared Library: Rewrite and split into subsections.
1700 Bugs fixed in 1.7.6:
1701 * Fix depcomp's icc mode for ICC 7.1.
1702 * Diagnose calls to AC_CONFIG_FILES and friends with not enough arguments.
1703 * Fix maintainer-clean's removal of autom4te.cache in VPATH builds.
1704 * Fix AM_PATH_LISPDIR to work with POSIXLY_CORRECT=1.
1705 * Fix the location reported in some diagnostics related to AUTOMAKE_OPTIONS.
1706 * Remove Latin-1 characters from elisp-comp.
1707 * Update the manual's @dircategory to match the Free Software Directory.
1709 Bugs fixed in 1.7.5:
1710 * Update install-sh's license to remove an advertising clause.
1711 (Debian bug #191717)
1712 * Fix a bug introduced in 1.7.4, related to BUILT_SOURCE handling,
1713 that caused invalid Makefile.ins to be generated.
1714 * Make sure AM_MAKE_INCLUDE doesn't fail when a `doit' file exists.
1715 * New FAQ entry: renamed objects.
1717 Bugs fixed in 1.7.4:
1718 * Tweak the TAGS rule to support Exuberant Ctags (in addition to
1719 the Emacs implementation)
1720 * Fix output of aclocal.m4 dependencies in subdirectories.
1721 * Use `mv -f' instead of `mv' in fastdep rules.
1722 * Upgrade mdate-sh to work on OS/2.
1723 * Don't byte-compile elisp files when ELCFILES is set empty.
1724 (this documented feature was broken by 1.7.3)
1725 * Diagnose trailing backslashes on last line of Makefile.am.
1726 * Diagnose whitespace following trailing backslashes.
1727 * Multiple tests are now correctly supported in DEJATOOL. (PR/388)
1728 * Fix rebuilt rules for AC_CONFIG_FILES([Makefile:Makefile.in:Makefile.bot])
1730 * `make install' will build `BUILT_SOURCES' first.
1731 * Minor documentation fixes.
1733 Bugs fixed in 1.7.3:
1734 * Fix stamp files numbering (when using multiple AC_CONFIG_HEADERS).
1735 * Query distutils for `pythondir' and `pythonexecdir', instead of
1736 using an hardcoded path. This should allow builds on 64-bit
1737 distributions that usually use lib64/ instead of lib/.
1738 * AM_PATH_PYTHON will also search for python2.3.
1739 * elisp files are now built all at once instead of one by one. Besides
1740 incurring a speed-up, this is required to support interdependent elisp files.
1741 * Support for DJGPP:
1742 - `make distcheck' will now work in `_inst/' and `_build' instead
1743 of `=inst/' and `=build/'
1744 - use `_dirstamp' when the file-system doesn't support `.dirstamp'
1745 - install/uninstall `*.i[0-9][0-9]'-style info files
1746 - more changes that affect only the Automake package (not its output)
1747 * Fix some incompatibilities with upcoming perl-5.10.
1748 * Properly quote AC_PACKAGE_TARNAME and AC_PACKAGE_VERSION when defining
1749 PACKAGE and VERSION.
1751 - dashmstdout and dashXmstdout modes: don't use `-o /dev/null', this
1752 is troublesome with gcc and Solaris compilers. (PR/385)
1753 - makedepend mode: work with Libtool. (PR/385 too)
1755 * better support for unusual gettext setups, such as multiple po/ directories
1757 - Flag missing po/ and intl/ directories as warnings, not errors.
1758 - Disable these warnings if po/ does not exist.
1759 * Noteworthy manual updates:
1761 - Document how AC_CONFIG_AUX_DIR interacts with missing files.
1763 - Document `AM_YFLAGS = -d'. (PR/382)
1765 Bugs fixed in 1.7.2:
1766 * Fix installation and uninstallation of Info files built in subdirectories.
1767 * Do not run `./configure --with-included-gettext' during `make distcheck'
1768 if AM_GNU_GETTEXT([external]) is used.
1769 * Correctly uninstall renamed man pages.
1770 * Do not strip escaped newline in variables defined in one condition
1771 and augmented in another condition.
1772 * Fix ansi2knr rules for LIBOBJS sources.
1773 * Clean all known Texinfo index files, not only those which appear to
1774 be used, because we cannot know which indexes are used in included files.
1775 (PR/375, Debian Bug #168671)
1776 * Honor only the first @setfilename seen in a Texinfo file.
1777 * Treat "required file X not found" diagnostics as errors (exit status 1).
1778 * Don't complain that a required file is not found when it is a Makefile
1780 * Don't use single suffix inference rules when building `.info'-less
1781 Info files, for the sake of Solaris make.
1782 * The `check' target now depends on `$(BUILT_SOURCES)'. (PR/359)
1783 * Recognize multiple inference rules such as `.a.b .c.d:'. (PR/371)
1784 * Warn about multiple inference rules when -Wportability is used. (PR/372)
1785 * Fix building of deansified files from subdirectories. (PR/370)
1786 * Add missing `fi' in the .c->.obj rules.
1787 * Improve install-sh to work even when names contain spaces or certain
1788 (but not all) shell metachars.
1789 * Fix the following spurious failures in the test suite:
1790 depcomp2.test, gnits2.test, gnits3.test, python3.test, texinfo13.test
1791 * Noteworthy manual updates:
1792 - Augment the section about BUILT_SOURCES.
1793 - Mention that AM_PROG_CC_STDC is a relic that is better avoided today.
1795 Bugs fixed in 1.7.1:
1796 * Honor `ansi2knr' for files built in subdirectories, or using per-targets
1798 * Aclocal should now recognize macro names containing parentheses, e.g.
1799 AC_DEFUN([AC_LANG_PREPROC(Fortran 90)], [...]).
1800 * Erase *.sum and *.log files created by DejaGnu, during `make distclean'.
1802 * Install Python files even if they were built. (PR/369)
1803 * Have stamp-vti dependent upon configure instead of configure.ac, as the
1804 version might not be defined in the latter. (PR/358)
1805 * Reorder arguments passed to a couple of commands, so things works
1806 when POSIXLY_CORRECT=1.
1807 * Fix a regex that can cause Perl to segfault on large input.
1809 * Fix distribution of packages that have some sources defined conditionally,
1810 as in the `Conditional compilation using Automake conditionals' example
1812 * Fix spurious test suite failures on IRIX.
1813 * Don't report a required variable as undefined if it has been
1814 defined conditionally for the "right" conditions.
1815 * Fix cleaning of the /tmp subdirectory used by `make distcheck', in case
1816 `make distcheck' fails.
1817 * Fix distribution of included Makefile fragment, so we don't create
1818 spurious directories in the distribution. (PR/366)
1819 * Don't complain that a target lacks `.$(EXEEXT)' when it has it.
1822 * Autoconf 2.54 is required.
1823 * `aclocal' and `automake' will no longer warn about obsolete
1824 configure macros. This is done by `autoconf -Wobsolete'.
1825 * AM_CONFIG_HEADER, AM_SYS_POSIX_TERMIOS and
1826 AM_HEADER_TIOCGWINSZ_NEEDS_SYS_IOCTL are obsolete (although still
1827 supported). You should use AC_CONFIG_HEADERS, AC_SYS_POSIX_TERMIOS,
1828 and AC_HEADER_TIOCGWINSZ instead. `autoupdate' can upgrade
1829 `configure.ac' for you.
1830 * Support for per-program and per-library `_CPPFLAGS'.
1831 * New `ctags' target (builds CTAGS files).
1832 * Support for -Wmumble and -Wno-mumble, where mumble is a warning category
1833 (see `automake --help' or the manual for a list of them).
1834 * Honor the WARNINGS environment variable.
1835 * Omit the call to depcomp when using gcc3: call the compiler directly.
1836 * A new option, std-options, tests that programs support --help and --version
1837 when `make installcheck' is run. This is enabled by --gnits.
1838 * Texinfo rules now support the `ps' and `pdf' targets.
1839 * Info files are now created in the build directory, not the source directory.
1840 * info_TEXINFOS supports files in subdirectories (this requires Texinfo 4.1
1842 * `make distcheck' will enforce DESTDIR support by attempting
1844 * `+=' can be used in conditionals, even if the augmented variable
1845 was defined for another condition.
1846 * Makefile fragments (inserted with `include') are always distributed.
1847 * Use Autoconf's --trace interface to inspect configure.ac and get
1848 a more accurate view of it.
1849 * Add support for extending aclocal's default macro search path
1850 using a `dirlist' file within the aclocal directory.
1851 * automake --output-dir is deprecated.
1852 * The part of the distcheck target that checks whether uninstall actually
1853 removes all installed files has been moved in a separate target,
1854 distuninstallcheck, so it can be overridden easily.
1858 * Support for AM_INIT_GETTEXT([external])
1859 * Bug fixes, including:
1860 - Fix Automake's own `make install' so it works even if `ln' doesn't.
1861 - nobase_ programs and scripts honor --program-transform correctly.
1862 - Erase configure.lineno during `make distclean'.
1863 - Erase YACC and LEX outputs during `make maintainer-clean'.
1866 * Many bug fixes, including:
1867 - Requiring the current version works.
1868 - Fix "$@" portability issues (for Zsh).
1869 - Fix output of dummy dependency files in presence of post-processed
1871 - Don't compute dependencies in background to avoid races with libtool.
1872 - Fix handling of _OBJECTS variables for targets sharing source variables.
1873 - Check dependency mode for Java when AM_PROG_GCJ is used.
1876 * automake --output-dir is deprecated
1877 * Many bug fixes, including:
1878 - Don't choke on AM_LDFLAGS definitions.
1879 - Clean libtool objects from subdirectories.
1880 - Allow configure variables with reserved suffix and unknown prefix
1881 (e.g. AC_SUBST(mumble_LDFLAGS) when 'mumble' is not a target).
1882 - Fix the definition of AUTOMAKE and ACLOCAL in configure.
1885 * Autoconf 2.52 is required.
1886 * automake no longer run libtoolize.
1887 This is the job of autoreconf (from GNU Autoconf).
1888 * `dist' generates all the archive flavors, as did `dist-all'.
1889 * `dist-gzip' generates the Gzip tar file only.
1890 * Combining Automake Makefile conditionals no longer lead to a combinatorial
1891 explosion. Makefile.in's keep a reasonable size.
1892 * AM_FUNC_ERROR_AT_LINE, AM_FUNC_STRTOD, AM_FUNC_OBSTACK, AM_PTRDIFF_T
1893 are no longer shipped, since Autoconf 2.52 provides them (both as AM_
1895 * `#line' of Lex and Yacc files are properly set.
1896 * EXTRA_DIST can contain generated directories.
1897 * Support for dot-less extensions in suffix rules.
1898 * The part of the distcheck target that checks whether distclean actually
1899 cleans all built files has been moved in a separate target, distcleancheck,
1900 so it can be overridden easily.
1901 * `make distcheck' will pass additional options defined in
1902 $(DISTCHECK_CONFIGURE_FLAGS) to configure.
1903 * Fixed CDPATH portability problems, in particular for MacOS X.
1904 * Fixed handling of nobase_ targets.
1905 * Fixed support of implicit rules leading to .lo objects.
1906 * Fixed late inclusion of --add-missing files (e.g. depcomp) in DIST_COMMON
1907 * Added uninstall-hook target
1908 * `AC_INIT AM_INIT_AUTOMAKE(tarname,version)' is an obsolete construct.
1909 You can now use `AC_INIT(pkgname,version) AM_INIT_AUTOMAKE' instead.
1910 (Note that "pkgname" is not "tarname", see the manual for details.)
1911 It is also possible to pass a list of global Automake options as
1912 first argument to this new form of AM_INIT_AUTOMAKE.
1913 * Compiler-based assembler is now called `CCAS'; people expected `AS'
1914 to be a real assembler.
1915 * AM_INIT_AUTOMAKE will set STRIP itself when it needs it. Adding
1916 AC_CHECK_TOOL([STRIP], [strip]) manually is no longer required.
1917 * aclocal and automake are also installed with the version number
1918 appended, and some of the install directory names have changed.
1919 This lets you have multiple versions installed simultaneously.
1920 * Support for parsers and lexers in subdirectories.
1923 * Support for `configure.ac'.
1924 * Support for `else COND', `endif COND' and negated conditions `!COND'.
1925 * `make dist-all' is much faster.
1926 * Allows '@' AC_SUBSTs in macro names.
1927 * Faster AM_INIT_AUTOMAKE (requires update of `missing' script)
1928 * User-side dependency tracking. Developers no longer need GNU make
1930 * Uses DIST_SUBDIRS in some situations when SUBDIRS is conditional
1931 * Most files are correctly handled if they appear in subdirs
1932 For instance, a _DATA file can appear in a subdir
1933 * GNU tar is no longer required for `make dist'
1934 * Added support for `dist_' and `nodist_' prefixes
1935 * Added support for `nobase_' prefix
1936 * Compiled Java support
1937 * Support for per-executable and per-library compilation flags
1941 * Added support for the Fortran 77 programming language.
1942 * Re-indexed the Automake Texinfo manual.
1943 * Added `AM_FOOFLAGS' variable for each compiler invocation;
1944 e.g. AM_CFLAGS can be used in Makefile.am to set C compiler flags
1945 * Support for latest autoconf, including support for objext
1946 * Can now put `.' in SUBDIRS to control build order
1947 * `include' command and `+=' support for macro assignment
1948 * Dependency tracking no long susceptible to deleted header file problem
1949 * Maintainer mode now a conditional. @MAINT@ is now an anachronism.
1954 * Better Cygwin32 support
1955 * Support for suffix rules with _SOURCES variables
1956 * New options `readme-alpha' and `check-news'; Gnits mode sets these
1957 * @LEXLIB@ no longer required when lex source seen
1958 Lex support in `missing', and new lex macro. Update your missing script.
1959 * Built-in support for assembly
1960 * aclocal gives error if `AM_' macro not found
1961 * Passed YFLAGS, not YACCFLAGS, to yacc
1962 * AM_PROG_CC_STDC does not have to come before AC_PROG_CPP
1963 * Dependencies computed as a side effect of compilation
1964 * Preliminary support for Java
1965 * DESTDIR support at "make install" time
1966 * Improved ansi2knr support; you must use the latest ansi2knr.c (included)
1970 * Better DejaGnu support
1971 * Added no-installinfo option
1972 * Added Emacs Lisp support
1973 * Added --no-force option
1974 * Included `aclocal' program
1975 * Automake will now generate rules to regenerate aclocal.m4, if appropriate
1976 * Now uses `AM_' macro names everywhere
1977 * ansi2knr option can have directory prefix (eg `../lib/ansi2knr')
1978 ansi2knr now works correctly on K&R sources
1979 * Better C++, yacc, lex support
1980 * Will compute _DEPENDENCIES variables automatically if not supplied
1981 * Will interpolate $(...) and ${...} when examining contents of a variable
1982 * .deps files now in build directory, not source directory; dependency
1983 handling generally rewritten
1984 * DATA, MANS and BUILT_SOURCES no longer included in distribution
1985 * can now put config.h into a subdir
1986 * Added dist-all target
1987 * Support for install-info program (see texinfo 3.9)
1988 * Support for "yacc -d"
1989 * configure substitutions are automatically discovered and included
1990 in generated Makefile.in
1991 * Special --cygnus mode
1992 * OMIT_DEPENDENCIES can now hold list of dependencies to be omitted
1993 when making distribution. Some dependencies are auto-ignored.
1994 * Changed how libraries are specified in _LIBRARIES variable
1995 * Full libtool support, from Gord Matzigkeit
1996 * No longer have to explicitly touch stamp-h when using AC_CONFIG_HEADER;
1997 AM_CONFIG_HEADER handles it automatically
1998 * Texinfo output files no longer need .info extension
1999 * Added `missing' support
2001 * Conditionals in Makefile.am, from Ian Taylor
2005 * distcheck target runs install and installcheck targets
2006 * Added preliminary support for DejaGnu.
2011 * More libtool fixes from Gord Matzigkeit; libtool support is still
2013 * Added support for jm_MAINTAINER_MODE
2015 * New "distcheck" target
2019 * mkinstalldirs and mdate-sh now appear in directory specified by
2021 * Removed DIST_SUBDIRS, DIST_OTHER
2022 * AC_ARG_PROGRAM only required when an actual program exists
2023 * dist-hook target now run before distribution packaged up; idea from
2024 Dieter Baron. Other hooks exist, too.
2025 * Preliminary (unfinished) support for libtool
2026 * Added short option names.
2027 * Better "dist" support when gluing together multiple packages
2031 * Documentation updates (many from François Pinard)
2032 * strictness `normal' now renamed to `foreign'
2033 * Renamed --install-missing to --add-missing
2034 * Now handles AC_CONFIG_AUX_DIR
2035 * Now handles TESTS macro
2036 * DIST_OTHER renamed to EXTRA_DIST
2037 * DIST_SUBDIRS is deprecated
2038 * @ALLOCA@ and @LIBOBJS@ now work in _LDADD variables
2039 * Better error messages in many cases
2040 * Program names are canonicalized
2041 * Added "check" prefix; from Gord Matzigkeit
2045 * configure.in scanner knows about AC_PATH_XTRA, AC_OUTPUT ":" syntax
2046 * Beginnings of a test suite
2047 * Automatically adds -I options for $(srcdir), ".", and path to config.h
2048 * Doesn't print anything when running
2049 * Beginnings of MAINT_CHARSET support
2050 * Can specify version in AUTOMAKE_OPTIONS
2051 * Most errors recognizable by Emacs' M-x next-error
2052 * Added --verbose option
2053 * All "primary" variables now obsolete; use EXTRA_PRIMARY to supply
2054 configure-generated names
2055 * Required macros now distributed in aclocal.m4
2057 * --strictness=gnu is default
2061 * More sophisticated configure.in scanning; now understands ALLOCA and
2062 LIBOBJS directly, handles AC_CONFIG_HEADER more precisely, etc.
2063 * TEXINFOS and MANS now obsolete; use info_TEXINFOS and man_MANS instead.
2064 * CONFIG_HEADER variable now obsolete
2065 * Can handle multiple Texinfo sources
2066 * Allow hierarchies deeper than 2. From Gord Matzigkeit.
2067 * HEADERS variable no longer needed; now can put .h files directly into
2068 foo_SOURCES variable.
2069 * Automake automatically rebuilds files listed in AC_OUTPUT. The
2070 corresponding ".in" files are included in the distribution.
2073 * Added --gnu and --gnits options
2074 * More standards checking
2076 * Cleaned up 'dist' targets
2077 * Added AUTOMAKE_OPTIONS variable and several options
2078 * Now scans configure.in to get some information (preliminary)
2081 * Works with Perl 4 again
2084 * Added --install-missing option.
2085 * Pretty-prints generated macros and rules
2086 * Comments in Makefile.am are placed more intelligently in Makefile.in
2087 * Generates .PHONY target
2088 * Rule or macro in Makefile.am now overrides contents of Automake file
2089 * Substantial cleanups from François Pinard
2093 * Works with Perl 4 again.
2096 * New uniform naming scheme.
2097 * --strictness option
2099 * '.c' files corresponding to '.y' or '.l' files are automatically
2101 * Many bug fixes and cleanups
2104 * Allow objects to be conditionally included in libraries via lib_LIBADD.
2107 * Bug fixes in 'clean' code.
2108 * Now generates 'installdirs' target.
2109 * man page installation reworked.
2110 * 'make dist' no longer re-creates all Makefile.in's.
2113 * Reimplemented in Perl
2114 * Added --amdir option (for debugging)
2115 * Texinfo support cleaned up.
2116 * Automatic de-ANSI-fication cleaned up.
2117 * Cleaned up 'clean' targets.
2120 * Automatic dependency tracking
2121 * More documentation
2122 * New variables DATA and PACKAGEDATA
2123 * SCRIPTS installed using $(INSTALL_SCRIPT)
2124 * No longer uses double-colon rules
2126 * Changes in advance of internationalization
2130 Copyright (C) 1995-2012 Free Software Foundation, Inc.
2132 This program is free software; you can redistribute it and/or modify
2133 it under the terms of the GNU General Public License as published by
2134 the Free Software Foundation; either version 2, or (at your option)
2137 This program is distributed in the hope that it will be useful,
2138 but WITHOUT ANY WARRANTY; without even the implied warranty of
2139 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
2140 GNU General Public License for more details.
2142 You should have received a copy of the GNU General Public License
2143 along with this program. If not, see <http://www.gnu.org/licenses/>.