3 * Obsolete features removed:
5 - Support for the "Cygnus-style" trees (once enabled by the 'cygnus'
6 option) has been removed. See discussion about automake bug#11034
9 - The automake-provided $(mkdir_p) make variable, @mkdir_p@ configure
10 time substitution and AM_PROG_MKDIR m4 macro have been removed. They
11 had been obsolete since automake 1.10, and actively deprecated since
14 - The deprecated aclocal option '--acdir' has been removed. You
15 should use the options '--automake-acdir' and '--system-acdir'
16 instead (which have been introduced in Automake 1.11.2).
18 - The following long-obsolete m4 macros have been removed:
20 AM_PROG_CC_STDC: superseded by AC_PROG_CC since October 2002
21 fp_PROG_CC_STDC: broken alias for AM_PROG_CC_STDC
22 fp_WITH_DMALLOC: old alias for AM_WITH_DMALLOC
23 AM_CONFIG_HEADER: superseded by AC_CONFIG_HEADERS since July 2002
24 ud_PATH_LISPDIR: old alias for AM_PATH_LISPDIR
25 jm_MAINTAINER_MODE: old alias for AM_MAINTAINER_MODE
26 ud_GNU_GETTEXT: old alias for AM_GNU_GETTEXT
27 gm_PROG_LIBTOOL: old alias for AC_PROG_LIBTOOL
28 fp_C_PROTOTYPES: old alias for AM_C_PROTOTYPES (which was part
29 of the now-removed automatic de-ANSI-fication
32 - All the "old alias" macros in 'm4/obsolete.m4' have been removed.
34 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
38 * WARNING: Future backward-incompatibilities!
40 - Autoconf 2.65 or later will be required by the next major Automake
41 version (1.13). Until now, Automake has required Autoconf version
44 - Starting from the next major Automake version (1.13), the rules to
45 build pdf, ps and dvi output from Texinfo input will use the '--tidy'
46 option by default. Since such an option was introduced in Texinfo
47 4.9, this means that Makefiles generated by future Automake versions
48 will require at least that version of Texinfo.
50 - Starting from the next major Automake version (1.13), the parallel
51 testsuite harness (previously only enabled by the 'parallel-tests'
52 option) will become the default one; the older serial testsuite
53 harness will still be available through the use of the 'serial-tests'
56 - Support for the two- and three-arguments invocation forms of the
57 AM_INIT_AUTOMAKE macro will be deprecated in the next minor version
58 of Automake (1.12.1) and removed in the next major version (1.13).
60 - The exact order in which the directories in the aclocal macro
61 search path are looked up is probably going to be changed in the
62 next Automake release (1.13).
64 * Deprecated obsolescent features:
66 - Support for the "Cygnus-style" trees (enabled by the 'cygnus' option) is
67 now deprecated (its use triggers a warning in the 'obsolete' category).
68 It will be removed in the next major Automake release (1.13).
70 - The long-obsolete (since 1.10) automake-provided $(mkdir_p) make
71 variable, @mkdir_p@ configure-time substitution and AM_PROG_MKDIR
72 m4 macro are deprecated, eliciting a warning in the 'obsolete'
73 category. They will be removed in the next major version (1.13).
77 * Bugs introduced by 1.12:
79 - Several weaknesses in Automake's own build system and test suite
82 * Bugs introduced by 1.11.3:
84 - When given non-option arguments, aclocal rejects them, instead of
85 silently ignoring them.
89 - When the 'color-tests' option is in use, forcing of colored testsuite
90 output through "AM_COLOR_TESTS=always" works even if the terminal is
91 a non-ANSI one, i.e., if the TERM environment variable has a value of
94 - Several inefficiencies and poor performances in the implementation
95 of the parallel-tests 'check' and 'recheck' targets have been fixed.
97 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
101 * Obsolete features removed:
103 - The never documented nor truly used script 'acinstall' has been
106 - Support for automatic de-ANSI-fication has been removed.
108 - The support for the "obscure" multilib feature has been removed
109 from Automake core (but remains available in the 'contrib/'
110 directory of the Automake distribution).
112 - Support for ".log -> .html" conversion and the check-html and
113 recheck-html targets has been removed from Automake core (but
114 remains available in the 'contrib/' directory of the Automake
117 - The deprecated 'lzma' compression format for distribution archives
118 has been removed, in favor of 'xz' and 'lzip'.
120 - The obsolete AM_WITH_REGEX macro has been removed.
122 - The long-deprecated options '--output-dir', '--Werror' and
123 '--Wno-error' have been removed.
125 - The chapter on the history of Automake has been moved out of the
126 reference manual, into a new dedicated Texinfo file.
130 - New 'cscope' target to build a cscope database for the source tree.
132 * Changes to Automake-generated testsuite harnesses:
134 - The new automake option 'serial-tests' has been introduced. It can
135 be used to explicitly instruct automake to use the older serial
136 testsuite harness. This is still the default at the moment, but it
137 might change in future versions.
139 - The 'recheck' target (provided by the parallel testsuite harness) now
140 depends on the 'all' target. This allows for a better user-experience
141 in test-driven development. See automake bug#11252.
143 - Test scripts that exit with status 99 to signal an "hard error" (e.g.,
144 and unexpected or internal error, or a failure to set up the test case
145 scenario) have their outcome reported as an 'ERROR' now. Previous
146 versions of automake reported such an outcome as a 'FAIL' (the only
147 difference with normal failures being that hard errors were counted
148 as failures even when the test originating them was listed in
151 - The testsuite summary displayed by the parallel-test harness has a
152 completely new format, that always list the numbers of passed, failed,
153 xfailed, xpassed, skipped and errored tests, even when these numbers
154 are zero (but using smart coloring when the color-tests option is in
157 - The default testsuite driver offered by the 'parallel-tests' option is
158 now implemented (partly at least) with the help of automake-provided
159 auxiliary scripts (e.g., 'test-driver'), instead of relying entirely
160 on code in the generated Makefile.in.
161 This has two noteworthy implications. The first one is that projects
162 using the 'parallel-tests' option should now either run automake with
163 the '--add-missing' option, or manually copy the 'test-driver' script
164 into their tree. The second, and more important, implication is that
165 now, when the 'parallel-tests' option is in use, TESTS_ENVIRONMENT can
166 not be used anymore to define a test runner, and the command specified
167 in LOG_COMPILER (and <ext>_LOG_COMPILER) must be a *real* executable
168 program or script. For example, this is still a valid usage (albeit
171 TESTS_ENVIRONMENT = \
172 if test -n '$(STRICT_TESTS)'; then \
173 maybe_errexit='-e'; \
177 LOG_COMPILER = $(SHELL) $$maybe_errexit
179 while this is not anymore:
181 TESTS_ENVIRONMENT = \
182 $(SHELL) `test -n '$(STRICT_TESTS_CHECKING)' && echo ' -e'`
186 TESTS_ENVIRONMENT = \
187 run_with_perl_or_shell () \
189 if grep -q '^#!.*perl' $$1; then
195 LOG_COMPILER = run_with_perl_or_shell
197 - The package authors can now use customary testsuite drivers within
198 the framework provided by the 'parallel-tests' testsuite harness.
199 Consistently with the existing syntax, this can be done by defining
200 special makefile variables 'LOG_DRIVER' and '<ext>_LOG_DRIVER'.
202 - A new developer-reserved variable 'AM_TESTS_FD_REDIRECT' can be used
203 to redirect/define file descriptors used by the test scripts.
205 - The parallel-tests harness generates now, in addition the '.log' files
206 holding the output produced by the test scripts, a new set of '.trs'
207 files, holding "metadata" derived by the execution of the test scripts;
208 among such metadata are the outcomes of the test cases run by a script.
210 - Initial and still experimental support for the TAP test protocol is
213 * Changes to Yacc and Lex support:
215 - C source and header files derived from non-distributed Yacc and/or
216 Lex sources are now removed by a simple "make clean" (while they were
217 previously removed only by "make maintainer-clean").
219 - Slightly backward-incompatible change, relevant only for use of Yacc
220 with C++: the extensions of the header files produced by the Yacc
221 rules are now modelled after the extension of the corresponding
222 sources. For example, yacc files named "foo.y++" and "bar.yy" will
223 produce header files named "foo.h++" and "bar.hh" respectively, where
224 they would have previously produced header files named simply "foo.h"
225 and "bar.h". This change offers better compatibility with 'bison -o'.
227 * Miscellaneous changes:
229 - The AM_PROG_VALAC macro now causes configure to exit with status 77,
230 rather than 1, if the vala compiler found is too old.
232 - The build system of Automake itself now avoids the use of make
233 recursion as much as possible.
235 - Automake now prefers to quote 'like this' or "like this", rather
236 than `like this', in diagnostic message and generated Makefiles,
237 to accommodate the new GNU Coding Standards recommendations.
239 - Automake has a new option '--print-libdir' that prints the path of the
240 directory containing the Automake-provided scripts and data files.
242 - The 'dist' and 'dist-all' targets now can run compressors in parallel.
244 - The rules to create pdf, dvi and ps output from Texinfo files now
245 works better with modern 'texi2dvi' script, by explicitly passing
246 it the '--clean' option to ensure stray auxiliary files are not
247 left to clutter the build directory.
249 - Automake can now generate silenced rules for texinfo outputs.
251 - Some auxiliary files that are automatically distributed by Automake
252 (e.g., 'install-sh', or the 'depcomp' script for packages compiling
253 C sources) might now be listed in the DIST_COMMON variable in many
254 Makefile.in files, rather than in the top-level one.
256 - Messages of types warning or error from 'automake' and 'aclocal'
257 are now prefixed with the respective type, and presence of -Werror
260 - Automake's early configure-time sanity check now tries to avoid
261 sleeping for a second, which slowed down cached configure runs
262 noticeably. In that case, it will check back at the end of the
263 configure script to ensure that at least one second has passed, to
264 avoid time stamp issues with makefile rules rerunning autotools
267 - The warnings in the category 'extra-portability' are now enabled by
268 '-Wall'. In previous versions, one has to use '-Wextra-portability'
273 - Various minor bugfixes for recent or long-standing bugs.
275 * Bugs introduced by 1.11:
277 - The AM_COND_IF macro also works if the shell expression for the
278 conditional is no longer valid for the condition.
280 - The automake-provided parallel testsuite harness does not fail anymore
281 with BSD make used in parallel mode when there are test scripts in a
282 subdirectory, like in:
284 TESTS = sub/foo.test sub/bar.test
286 * Long-standing bugs:
288 - Automake's own build system finally have a real "installcheck" target.
290 - Vala-related cleanup rules are now more complete, and work better in
293 - Files listed with the AC_REQUIRE_AUX_FILE macro in configure.ac are
294 now automatically distributed also if the directory of the auxiliary
295 files coincides with the top-level directory.
297 - Automake now detects the presence of the '-d' flag in the various
298 '*YFLAGS' variables even when their definitions involve indirections
299 through other variables, such as in:
301 AM_YFLAGS = $(foo_opts)
303 - Automake now complains if a '*YFLAGS' variable has any conditional
304 content, not only a conditional definition.
306 - Explicit enabling and/or disabling of Automake warning categories
307 through the '-W...' options now always takes precedence over the
308 implicit warning level implied by Automake strictness (foreign, gnu
309 or gnits), regardless of the order in which such strictness and
310 warning flags appear. For example, a setting like:
311 AUTOMAKE_OPTIONS = -Wall --foreign
312 will cause the warnings in category 'portability' to be enabled, even
313 if those warnings are by default disabled in 'foreign' strictness.
315 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
317 Bugs fixed in 1.11.5:
319 * Bugs introduced by 1.11.3:
321 - Vala files with '.vapi' extension are now recognized and handled
322 correctly again. See automake bug#11222.
324 - Vala support work again for projects that contain some program
325 built from '.vala' (and possibly '.c') sources and some other
326 program built from '.c' sources *only*. See automake bug#11229.
328 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
332 * Miscellaneous changes:
334 - The 'ar-lib' script now ignores the "s" (symbol index) and "S" (no
335 symbol index) modifiers as well as the "s" action, as the symbol index
336 is created unconditionally by Microsoft lib. Also, the "q" (quick)
337 action is now a synonym for "r" (replace). Also, the script has been
338 ignoring the "v" (verbose) modifier already since Automake 1.11.3.
340 - When the 'compile' script is used to wrap MSVC, it now accepts an
341 optional space between the -I, -L and -l options and their respective
342 arguments, for better POSIX compliance.
344 - There is an initial, experimental support for automatic dependency
345 tracking with tcc (the Tiny C Compiler). Its associated depmode is
346 currently recognized as "icc" (but this and other details are likely
347 to change in future versions).
349 - Automatic dependency tracking now works also with the IBM XL C/C++
350 compilers, thanks to the new new depmode 'xlc'.
352 Bugs fixed in 1.11.4:
354 * Bugs introduced by 1.11.2:
356 - A definition of 'noinst_PYTHON' before 'python_PYTHON' (or similar)
357 don't cause spurious failures upon "make install" anymore.
359 - The user can now instruct the 'uninstall-info' rule not to update
360 the '${infodir}/dir' file by exporting the environment variable
361 'AM_UPDATE_INFO_DIR' to the value "no". This is done for consistency
362 with how the 'install-info' rule operates since automake 1.11.2.
364 * Long-standing bugs:
366 - It is now possible for a foo_SOURCES variable to hold Vala sources
367 together with C header files, as well as with sources and headers for
368 other supported languages (e.g., C++). Previously, only mixing C and
369 Vala sources was supported.
371 - If "aclocal --install" is used, and the first directory specified with
372 '-I' is non-existent, aclocal will now create it before trying to copy
375 - An empty declaration of a "foo_PRIMARY" don't cause anymore the
376 generated install rules to create an empty $(foodir) directory;
377 for example, if Makefile.am contains something like:
381 pkglibexec_SCRIPTS += bar.sh
384 the $(pkglibexec) directory will not be created upon "make install".
386 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
390 * Miscellaneous changes:
392 - Automake's own build system is more silent by default, making use of
393 the 'silent-rules' option.
395 - The master copy of the `gnupload' script is now maintained in gnulib,
398 - The `missing' script doesn't try to wrap calls to `tar' anymore.
400 - "make dist" doesn't wrap `tar' invocations with the `missing' script
401 anymore. Similarly, the obsolescent variable `$(AMTAR)' (which you
402 shouldn't be using BTW ;-) does not invoke the missing script anymore
403 to wrap tar, but simply invokes the `tar' program itself.
405 - "make dist" can now create lzip-compressed tarballs.
407 - In the Automake info documentation, the Top node and the nodes about
408 the invocation of the automake and aclocal programs have been renamed;
409 now, calling "info automake" will open the Top node, while calling
410 "info automake-invocation" and "info aclocal-invocation" will access
411 the nodes about the invocation of respectively automake and aclocal.
413 - Automake is now distributed as a gzip-compressed and an xz-compressed
414 tarball. Previously, bzip2 was used instead of xz.
416 - The last relics of Python 1.5 support have been removed from the
417 AM_PATH_PYTHON macro.
419 - For programs and libraries, automake now detects EXTRA_foo_DEPENDENCIES
420 and adds them to the normal list of dependencies, but without
421 overwriting the foo_DEPENDENCIES variable, which is normally computed
424 Bugs fixed in 1.11.3:
426 * Bugs introduced by 1.11.2:
428 - Automake now correctly recognizes the prefix/primary combination
429 `pkglibexec_SCRIPTS' as valid.
431 - The parallel-tests harness doesn't trip anymore on sed implementations
432 with stricter limits on the length of input lines (problem seen at
435 * Long-standing bugs:
437 - The "deleted header file problem" for *.am files is avoided by stub
438 rules. This allows `make' to trigger a rerun of `automake' also if
439 some previously needed `.am' file has been removed.
441 - The `silent-rules' option now generates working makefiles even
442 for the uncommon `make' implementations that do not support the
443 nested-variables extension to POSIX 2008. For such `make'
444 implementations, whether a build is silent is determined at
445 configure time, and cannot be overridden at make time with
446 `make V=0' or `make V=1'.
448 - Vala support now works better in VPATH setups.
450 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
454 * Changes to aclocal:
456 - The `--acdir' option is deprecated. Now you should use the new options
457 `--automake-acdir' and `--system-acdir' instead.
459 - The `ACLOCAL_PATH' environment variable is now interpreted as a
460 colon-separated list of additional directories to search after the
461 automake internal acdir (by default ${prefix}/share/aclocal-APIVERSION)
462 and before the system acdir (by default ${prefix}/share/aclocal).
464 * Miscellaneous changes:
466 - The Automake support for automatic de-ANSI-fication has been
467 deprecated. It will probably be removed in the next major Automake
470 - The `lzma' compression scheme and associated automake option `dist-lzma'
471 is obsoleted by `xz' and `dist-xz' due to upstream changes.
473 - You may adjust the compression options used in dist-xz and dist-bzip2.
474 The default is now merely -e for xz, but still -9 for bzip; you may
475 specify a different level via the XZ_OPT and BZIP2 envvars respectively.
476 E.g., "make dist-xz XZ_OPT=-7" or "make dist-bzip2 BZIP2=-5"
478 - The `compile' script now converts some options for MSVC for a better
479 user experience. Similarly, the new `ar-lib' script wraps Microsoft lib.
481 - The py-compile script now accepts empty arguments passed to the options
482 `--destdir' and `--basedir', and complains about unrecognized options.
483 Moreover, a non-option argument or a special `--' argument terminates
486 - A developer that needs to pass specific flags to configure at "make
487 distcheck" time can now, and indeed is advised to, do so by defining
488 the developer-reserved makefile variable AM_DISTCHECK_CONFIGURE_FLAGS,
489 instead of the old DISTCHECK_CONFIGURE_FLAGS.
490 The DISTCHECK_CONFIGURE_FLAGS variable should now be reserved for the
491 user; still, the old Makefile.am files that used to define it will
492 still continue to work as before.
494 - New macro AM_PROG_AR that looks for an archiver and wraps it in the new
495 'ar-lib' auxiliary script if the selected archiver is Microsoft lib.
496 This new macro is required for LIBRARIES and LTLIBRARIES when automake
497 is run with -Wextra-portability and -Werror.
499 - When using DejaGnu-based testsuites, the user can extend the `site.exp'
500 file generated by automake-provided rules by defining the special make
501 variable `$(EXTRA_DEJAGNU_SITE_CONFIG)'.
503 - The `install-info' rule can now be instructed not to create/update
504 the `${infodir}/dir' file, by exporting the new environment variable
505 `AM_UPDATE_INFO_DIR' to the value "no".
507 Bugs fixed in 1.11.2:
509 * Bugs introduced by 1.11:
511 - The parallel-tests driver no longer produces erroneous results with
512 Tru64/OSF 5.1 sh upon unreadable log files.
514 - The `parallel-tests' test driver does not report spurious successes
515 when used with concurrent FreeBSD make (e.g., "make check -j3").
517 - When the parallel-tests driver is in use, automake now explicitly
518 rejects invalid entries and conditional contents in TEST_EXTENSIONS,
519 instead of issuing confusing and apparently unrelated error messages
520 (e.g., "non-POSIX variable name", "bad characters in variable name",
521 or "redefinition of TEST_EXTENSIONS), or even, in some situations,
522 silently producing broken `Makefile.in' files.
524 - The `silent-rules' option now truly silences all compile rules, even
525 when dependency tracking is disabled. Also, when `silent-rules' is
526 not used, `make' output no longer contains spurious backslash-only
527 lines, thus once again matching what Automake did before 1.11.
529 - The AM_COND_IF macro also works if the shell expression for the
530 conditional is no longer valid for the condition.
532 * Long-standing bugs:
534 - The order of Yacc and Lex flags is fixed to be consistent with other
535 languages: $(AM_YFLAGS) comes before $(YFLAGS), and $(AM_LFLAGS) before
536 $(LFLAGS), so that the user variables override the developer variables.
538 - "make distcheck" now correctly complains also when "make uninstall"
539 leaves one and only one file installed in $(prefix).
541 - A "make uninstall" issued before a "make install", or after a mere
542 "make install-data" or a mere "make install-exec" does not spuriously
545 - Automake now warns about more primary/directory invalid combinations,
546 such as "doc_LIBRARIES" or "pkglib_PROGRAMS".
548 - Rules generated by Automake now try harder to not change any files when
549 `make -n' is invoked. Fixes include compilation of Emacs Lisp, Vala, or
550 Yacc source files and the rule to update config.h.
552 - Several scripts and the parallel-tests testsuite driver now exit with
553 the right exit status upon receiving a signal.
555 - A per-Makefile.am setting of -Werror does not erroneously carry over
556 to the handling of other Makefile.am files.
558 - The code for automatic dependency tracking works around a Solaris
559 make bug triggered by sources containing repeated slashes when the
560 `subdir-objects' option was used.
562 - The makedepend and hp depmodes now work better with VPATH builds.
564 - Java sources specified with check_JAVA are no longer compiled for
565 "make all", but only for "make check".
567 - An usage like "java_JAVA = foo.java" will now cause Automake to warn
568 and error out if `javadir' is undefined, instead of silently producing
569 a broken Makefile.in.
571 - aclocal and automake now honour the configure-time definitions of
572 AUTOCONF and AUTOM4TE when they spawn autoconf or autom4te processes.
574 - The `install-info' recipe no longer tries to guess whether the
575 `install-info' program is from Debian or from GNU, and adaptively
576 change its behaviour; this has proven to be frail and easy to
579 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
581 Bugs fixed in 1.11.1:
583 - Lots of minor bugfixes.
585 * Bugs introduced by 1.11:
587 - The `parallel-tests' test driver works around a GNU make 3.80 bug with
588 trailing white space in the test list (`TESTS = foo $(EMPTY)').
590 * Long standing bugs:
592 - On Darwin 9, `pythondir' and `pyexecdir' pointed below `/Library/Python'
593 even if the `--prefix' argument pointed outside of a system directory.
594 AM_PATH_PYTHON has been fixed to ignore the value returned from python's
595 `get_python_lib' function if it points outside the configured prefix,
596 unless the `--prefix' argument was either `/usr' or below `/System'.
598 - The testsuite does not try to change the mode of `ltmain.sh' files from
599 a Libtool installation (symlinked to test directories) any more.
601 - AM_PROG_GCJ uses AC_CHECK_TOOLS to look for `gcj' now, so that prefixed
602 tools are preferred in a cross-compile setup.
604 - The distribution is tarred up with mode 755 now by the `dist*' targets.
605 This fixes a race condition where untrusted users could modify files
606 in the $(PACKAGE)-$(VERSION) distdir before packing if the toplevel
607 build directory was world-searchable. This is CVE-2009-4029.
609 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
613 * Version requirements:
615 - Autoconf 2.62 or greater is required.
617 * Changes to aclocal:
619 - The autoconf version check implemented by aclocal in aclocal.m4
620 (and new in Automake 1.10) is degraded to a warning. This helps
621 in the common case where the Autoconf versions used are compatible.
623 * Changes to automake:
625 - The automake program can run multiple threads for creating most
626 Makefile.in files concurrently, if at least Perl 5.7.2 is available
627 with interpreter-based threads enabled. Set the environment variable
628 AUTOMAKE_JOBS to the maximum number of threads to use, in order to
629 enable this experimental feature.
631 * Changes to Libtool support:
633 - Libtool generic flags are now passed to the install and uninstall
636 - distcheck works with Libtool 2.x even when LT_OUTPUT is used, as
637 config.lt is removed correctly now.
641 - subdir-object mode works now with Fortran (F77, FC, preprocessed
642 Fortran, and Ratfor).
644 - For files with extension .f90, .f95, .f03, or .f08, the flag
645 $(FCFLAGS_f[09]x) computed by AC_FC_SRCEXT is now used in compile rules.
647 - Files with extension .sx are also treated as preprocessed assembler.
649 - The default source file extension (.c) can be overridden with
650 AM_DEFAULT_SOURCE_EXT now.
652 - Python 3.0 is supported now, Python releases prior to 2.0 are no
655 - AM_PATH_PYTHON honors python's idea about the site directory.
657 - There is initial support for the Vala programming language, when using
660 * Miscellaneous changes:
662 - Automake development is done in a git repository on Savannah now, see
664 http://git.sv.gnu.org/gitweb/?p=automake.git
666 A read-only CVS mirror is provided at
668 cvs -d :pserver:anonymous@pserver.git.sv.gnu.org:/automake.git \
669 checkout -d automake HEAD
671 - "make dist" can now create xz-compressed tarballs,
672 as well as (deprecated?) lzma-compressed tarballs.
674 - `automake --add-missing' will by default install the GPLv3 file as
675 COPYING if it is missing. It will also warn that the license file
676 should be added to source control. Note that Automake will never
677 overwrite an existing COPYING file, even when the `--force-missing'
680 - The manual is now distributed under the terms of the GNU FDL 1.3.
682 - Automake ships and installs man pages for automake and aclocal now.
684 - New shorthand `$(pkglibexecdir)' for `$(libexecdir)/@PACKAGE@'.
686 - install-sh supports -C, which does not update the installed file
687 (and its time stamps) if the contents did not change.
689 - The `gnupload' script has been revamped.
691 - The `depcomp' and `compile' scripts now work with MSVC under MSYS.
693 - The targets `install' and `uninstall' are more efficient now, in that
694 for example multiple files from one Automake variable such as
695 `bin_SCRIPTS' are copied in one `install' (or `libtool --mode=install')
696 invocation if they do not have to be renamed.
698 Both install and uninstall may sometimes enter (`cd' into) the target
699 installation directory now, when no build-local scripts are used.
701 Both install and uninstall do not fail anymore but do nothing if an
702 installation directory variable like `bindir' is set to the empty string.
704 For built-in rules, `make install' now fails reliably if installation
705 of a file failed. Conversely, `make uninstall' even succeeds when
706 issued multiple times.
708 These changes may need some adjustments from users: For example,
709 some `install' programs refuse to install multiple copies of the
710 same file in one invocation, so you may need to remove duplicate
711 entries from file lists.
713 Also, within one set of files, say, nobase_data_DATA, the order of
714 installation may be changed, or even unstable among different hosts,
715 due to the use of associative arrays in awk. The increased use of
716 awk matches a similar move in Autoconf to provide for better scaling.
718 Further, most undocumented per-rule install command variables such as
719 binSCRIPT_INSTALL have been removed because they are not needed any
720 more. Packages which use them should be using the appropriate one of
721 INSTALL_{DATA,PROGRAM,SCRIPT} or their install_sh_{DATA,PROGRAM,SCRIPT}
722 counterpart, depending on the type of files and the need for automatic
723 target directory creation.
725 - The "deleted header file problem" for *.m4 files is avoided by
726 stub rules. This allows `make' to trigger a rerun of `aclocal'
727 also if some previously needed macro file has been removed.
729 - Rebuild rules now also work for a removed `subdir/Makefile.in' in
730 an otherwise up to date tree.
732 - The `color-tests' option causes colored test result output on terminals.
734 - The `parallel-tests' option enables a new test driver that allows for
735 parallel test execution, inter-test dependencies, lazy test execution
736 for unit-testing, re-testing only failed tests, and formatted result output
737 as RST (reStructuredText) and HTML. Enabling this option may require some
738 changes to your test suite setup; see the manual for details.
740 - The `silent-rules' option enables Linux kernel-style silent build output.
741 This option requires the widely supported but non-POSIX `make' feature
742 of recursive variable expansion, so do not use it if your package needs
743 to build with `make' implementations that do not support it.
745 To enable less verbose build output, the developer has to use the Automake
746 option `silent-rules' in `AM_INIT_AUTOMAKE', or call the `AM_SILENT_RULES'
747 macro. The user may then set the default verbosity by passing the
748 `--enable-silent-rules' option to `configure'. At `make' run time, this
749 default may be overridden using `make V=0' for less verbose, and `make V=1'
750 for backward-compatible verbose output.
752 - New prefix `notrans_' for manpages which should not be transformed
753 by --program-transform.
755 - New macro AM_COND_IF for conditional evaluation and conditional
758 - For AC_CONFIG_LINKS, if source and destination are equal, do not
759 remove the file in a non-VPATH build. Such setups work with Autoconf
762 - AM_MAINTAINER_MODE now allows for an optional argument specifying
765 - AM_SUBST_NOTMAKE may prevent substitution of AC_SUBSTed variables,
766 useful especially for multi-line values.
768 - Automake's early configure-time sanity check now diagnoses an
769 unsafe absolute source directory name and makes configure fail.
771 - The Automake macros and rules cope better with whitespace in the
772 current directory name, as long as the relative path to `configure'
773 does not contain whitespace. To this end, the values of `$(MISSING)'
774 and `$(install_sh)' may contain suitable quoting, and their expansion
775 might need `eval'uation if used outside of a makefile. These
776 undocumented variables may be used in several documented macros such
777 as $(AUTOCONF) or $(MAKEINFO).
781 * Long-standing bugs:
783 - Fix aix dependency tracking for libtool objects.
785 - Work around AIX sh quoting issue in AC_PROG_CC_C_O, leading to
786 unnecessary use of the `compile' script.
788 - For nobase_*_LTLIBRARIES with nonempty directory components, the
789 correct `-rpath' argument is used now.
791 - `config.status --file=Makefile depfiles' now also works with the
792 extra quoting used internally by Autoconf 2.62 and newer
793 (it used to work only without the `--file=' bit).
795 - The `missing' script works better with versioned tool names.
797 - Semantics for `missing help2man' have been revamped:
799 Previously, if `help2man' was not present, `missing help2man' would have
800 the following semantics: if some man page was out of date but present, then
801 a warning would be printed, but the exit status was 0. If the man page was
802 not present at all, then `missing' would create a replacement man page
803 containing an error message, and exit with a status of 2. This does not play
804 well with `make': the next run will see this particular man page as being up
805 to date, and will only error out on the next generated man page, if any;
806 repeat until all pages are done. This was not desirable.
808 These are the new semantics: if some man page is not present, and help2man
809 is not either, then `missing' will warn and generate the replacement page
810 containing the error message, but exit successfully. However, `make dist'
811 will ensure that no such bogus man pages are packaged into a tarball.
813 - Targets provided by automake behave better with `make -n', in that they
814 take care not to create files.
816 - `config.status Makefile... depfiles' works fine again in the presence of
817 disabled dependency tracking.
819 - The default no-op recursive rules for these targets also work with BSD make
820 now: html, install-html, install-dvi, install-pdf, install-pdf, install-info.
822 - `make distcheck' works also when both a directory and some file below it
823 have been added to a distribution variable, such as EXTRA_DIST or *_SOURCES.
825 - Texinfo dvi, ps, pdf, and html output files are not removed upon
826 `make mostlyclean' any more; only the LaTeX by-products are.
828 - Renamed objects also work with the `subdir-objects' option and
829 source file languages which Automake does not know itself.
831 - `automake' now correctly complains about variable assignments which are
832 preceded by a comment, extend over multiple lines with backslash-escaped
833 newlines, and end in a comment sign. Previous versions would silently
834 and wrongly ignore such assignments completely.
836 * Bugs introduced by 1.10:
838 - Fix output of dummy dependency files in presence of post-processed
839 Makefile.in's again, but also cope with long lines.
841 - $(EXEEXT) is automatically appended to filenames of XFAIL_TESTS
842 that have been declared as programs in the same Makefile.
843 This is for consistency with the analogous change to TESTS in 1.10.
845 - Fix order of standard includes to again be `-I. -I$(srcdir)',
846 followed by directories containing config headers.
848 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
852 * Version requirements:
854 - Autoconf 2.60 or greater is required.
856 - Perl 5.6 or greater is required.
858 * Changes to aclocal:
860 - aclocal now also supports -Wmumble and -Wno-mumble options.
862 - `dirlist' entries (for the aclocal search path) may use shell
863 wildcards such as `*', `?', or `[...]'.
865 - aclocal supports an --install option that will cause system-wide
866 third-party macros to be installed in the local directory
867 specified with the first -I flag. This option also uses #serial
868 lines in M4 files to upgrade local macros.
870 The new aclocal options --dry-run and --diff help to review changes
871 before they are installed.
873 - aclocal now outputs an autoconf version check in aclocal.m4 in
874 projects using automake.
876 For a few years, automake and aclocal have been calling autoconf
877 (or its underlying engine autom4te) to accurately retrieve the
878 data they need from configure.ac and its siblings. Doing so can
879 only work if all autotools use the same version of autoconf. For
880 instance a Makefile.in generated by automake for one version of
881 autoconf may stop working if configure is regenerated with another
882 version of autoconf, and vice versa.
884 This new version check ensures that the whole build system has
885 been generated using the same autoconf version.
887 * Support for new Autoconf macros:
889 - The new AC_REQUIRE_AUX_FILE Autoconf macro is supported.
891 - If `subdir-objects' is set, and AC_CONFIG_LIBOBJ_DIR is specified,
892 $(LIBOBJS), $(LTLIBOBJS), $(ALLOCA), and $(LTALLOCA) can be used
893 in different directories. However, only one instance of such a
894 library objects directory is supported.
896 * Change to Libtool support:
898 - Libtool generic flags (those that go before the --mode=MODE option)
899 can be specified using AM_LIBTOOLFLAGS and target_LIBTOOLFLAGS.
901 * Yacc and Lex changes:
903 - The rebuild rules for distributed Yacc and Lex output will avoid
904 overwriting existing files if AM_MAINTAINER_MODE and maintainer-mode
907 - ylwrap is now always used for lex and yacc source files,
908 regardless of whether there is more than one source per directory.
912 - Preprocessed assembler (*.S) compilation now honors CPPFLAGS,
913 AM_CPPFLAGS and per-target _CPPFLAGS, and supports dependency
914 tracking, unlike non-preprocessed assembler (*.s).
916 - subdir-object mode works now with Assembler. Automake assumes
917 that the compiler understands `-c -o'.
919 - Preprocessed assembler (*.S) compilation now also honors
920 $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES).
922 - Improved support for Objective C:
923 - Autoconf's new AC_PROG_OBJC will enable automatic dependency tracking.
924 - A new section of the manual documents the support.
926 - New support for Unified Parallel C:
927 - AM_PROG_UPC looks for a UPC compiler.
928 - A new section of the manual documents the support.
930 - Per-target flags are now correctly handled in link rules.
932 For instance maude_CFLAGS correctly overrides AM_CFLAGS; likewise
933 for maude_LDFLAGS and AM_LDFLAGS. Previous versions bogusly
934 preferred AM_CFLAGS over maude_CFLAGS while linking, and they
935 used both AM_LDFLAGS and maude_LDFLAGS on the same link command.
937 The fix for compiler flags (i.e., using maude_CFLAGS instead of
938 AM_CFLAGS) should not hurt any package since that is how _CFLAGS
939 is expected to work (and actually works during compilation).
941 However using maude_LDFLAGS "instead of" AM_LDFLAGS rather than
942 "in addition to" breaks backward compatibility with older versions.
943 If your package used both variables, as in
945 AM_LDFLAGS = common flags
947 a_LDFLAGS = more flags
950 and assumed *_LDFLAGS would sum up, you should rewrite it as
952 AM_LDFLAGS = common flags
954 a_LDFLAGS = $(AM_LDFLAGS) more flags
957 This new behavior of *_LDFLAGS is more coherent with other
958 per-target variables, and the way *_LDFLAGS variables were
959 considered internally.
961 * New installation targets:
963 - New targets mandated by GNU Coding Standards:
968 By default they will only install Texinfo manuals.
969 You can customize them with *-local variants:
975 - The undocumented recursive target `uninstall-info' no longer exists.
976 (`uninstall' is in charge of removing all possible documentation
977 flavors, including optional formats such as dvi, ps, or info even
978 when `no-installinfo' is used.)
980 * Miscellaneous changes:
982 - Automake no longer complains if input files for AC_CONFIG_FILES
983 are specified using shell variables.
985 - clean, distribution, or rebuild rules are normally disabled for
986 inputs and outputs of AC_CONFIG_FILES, AC_CONFIG_HEADERS, and
987 AC_CONFIG_LINK specified using shell variables. However, if these
988 variables are used as ${VAR}, and AC_SUBSTed, then Automake will
989 be able to output rules anyway.
990 (See the Automake documentation for AC_CONFIG_FILES.)
992 - $(EXEEXT) is automatically appended to filenames of TESTS
993 that have been declared as programs in the same Makefile.
994 This is mostly useful when some check_PROGRAMS are listed in TESTS.
996 - `-Wportability' has finally been turned on by default for `gnu' and
997 `gnits' strictness. This means, automake will complain about %-rules
998 or $(GNU Make functions) unless you switch to `foreign' strictness or
999 use `-Wno-portability'.
1001 - Automake now uses AC_PROG_MKDIR_P (new in Autoconf 2.60), and uses
1002 $(MKDIR_P) instead of $(mkdir_p) to create directories. The
1003 $(mkdir_p) variable is still defined (to the same value as
1004 $(MKDIR_P)) but should be considered obsolete. If you are using
1005 $(mkdir_p) in some of your rules, please plan to update them to
1006 $(MKDIR_P) at some point.
1008 - AM_C_PROTOTYPES and ansi2knr are now documented as being obsolete.
1009 They still work in this release, but may be withdrawn in a future one.
1011 - Inline compilation rules for gcc3-style dependency tracking are
1014 - Automake installs a "Hello World!" example package in $(docdir).
1015 This example is used throughout the new "Autotools Introduction"
1016 chapter of the manual.
1018 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1022 * Makefile.in bloat reduction:
1024 - Inference rules are used to compile sources in subdirectories when
1025 the `subdir-objects' option is used and no per-target flags are
1026 used. This should reduce the size of some projects a lot, because
1027 Automake used to output an explicit rule for each such object in
1030 - Automake no longer outputs three rules (.o, .obj, .lo) for each
1031 object that must be built with explicit rules. It just outputs
1032 the rules required to build the kind of object considered: either
1033 the two .o and .obj rules for usual objects, or the .lo rule for
1036 * Change to Libtool support:
1038 - Libtool tags are used with libtool versions that support them.
1039 (I.e., with Libtool 1.5 or greater.)
1041 - Automake is now able to handle setups where a libtool library is
1042 conditionally installed in different directories, as in
1045 lib_LTLIBRARIES = liba.la
1047 pkglib_LTLIBRARIES = liba.la
1049 liba_la_SOURCES = ...
1051 * Changes to aclocal:
1053 - aclocal now ensures that AC_DEFUNs and AU_DEFUNs it discovers are
1054 really evaluated, before it decides to include them in aclocal.m4.
1055 This solves nasty problems with conditional redefinitions of
1056 Autoconf macros in /usr/share/aclocal/*.m4 files causing extraneous
1057 *.m4 files to be included in any project using these macros.
1058 (Calls to AC_PROG_EGREP causing libtool.m4 to be included is the
1059 most famous instance of this bug.)
1061 - Do not complain about missing conditionally AC_REQUIREd macros
1062 that are not actually used. In 1.8.x aclocal would correctly
1063 determine which of these macros were really needed (and include
1064 only these in the package); unfortunately it would also require
1065 all of them to be present in order to run. This created
1066 situations were aclocal would not work on a tarball distributing
1067 all the macros it uses. For instance running aclocal on a project
1068 containing only the subset of the Gettext macros in use by the
1069 project did not work, because gettext conditionally requires other
1072 * Portability improvements:
1074 - Tar format can be chosen with the new options tar-v7, tar-ustar, and
1075 tar-pax. The new option filename-length-max=99 helps diagnosing
1076 filenames that are too long for tar-v7. (PR/414)
1078 - Variables aumented with `+=' are now automatically flattened (i.e.,
1079 trailing backslashes removed) and then wrapped around 80 colummns
1080 (adding trailing backslashes). In previous versions, a long series
1086 would result in a single-line definition of VAR that could possibly
1087 exceed the maximum line length of some make implementations.
1089 Non-augmented variables are still output as they are defined in
1094 - Support Fortran 90/95 with the new "fc" and "ppfc" languages.
1095 Works the same as the old Fortran 77 implementation; just replace
1096 F77 with FC everywhere (exception: FFLAGS becomes FCFLAGS).
1097 Requires a version of autoconf which provides AC_PROG_FC (>=2.59).
1099 - Support for conditional _LISP.
1101 - Support for conditional -hook and -local rules (PR/428).
1103 - Diagnose AC_CONFIG_AUX_DIR calls following AM_INIT_AUTOMAKE. (PR/49)
1105 - Automake will not write any Makefile.ins after the first error it
1106 encounters. The previous Makefile.ins (if any) will be left in
1107 place. (Warnings will not prevent output, but remember they can
1108 be turned into errors with -Werror.)
1110 - The restriction that SUBDIRS must contain direct children is gone.
1113 - The manual tells more about SUBDIRS vs. DIST_SUBDIRS.
1114 It also gives an example of nested packages using AC_CONFIG_SUBDIRS.
1116 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1118 Bugs fixed in 1.8.5:
1120 * Long-standing bugs:
1122 - Define DIST_SUBDIRS even when the `no-dist' or `cygnus' options are used
1123 so that `make distclean' and `make maintainer-clean' can work.
1125 - Define AR and ARFLAGS even when only EXTRA_LIBRARIES are defined.
1127 - Fix many rules to please FreeBSD make, which runs commands with `sh -e'.
1129 - Polish diagnostic when no input file is found.
1131 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1133 Bugs fixed in 1.8.4:
1135 * Long-standing bugs:
1137 - Fix AM_PATH_PYTHON to correctly display $PYTHON when it has been
1138 overridden by the user.
1140 - Honor PATH_SEPARATOR in various places of the Automake package, for
1143 - Adjust dependency tracking mode detection to ICC 8.0's new output.
1146 - Fix install-sh so it can install the `mv' binary... using `mv'.
1148 - Fix tru64 dependency tracking for libtool objects.
1150 - Work around Exuberant Ctags when creating a TAGS files in a directory
1151 without files to scan but with subdirectories to include.
1153 * Bugs introduced by 1.8:
1155 - Fix an "internal error" when @LIBOBJS@ is used in a variable that is
1156 not defined in the same conditions as the _LDADD that uses it.
1158 - Do not warn when JAVAROOT is overridden, this is legitimate.
1160 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1162 Bugs fixed in 1.8.3:
1164 * Long-standing bugs:
1166 - Quote filenames in installation rules, in case $DESTDIR, $prefix,
1167 or any of the other *dir variables contain a space.
1169 Please note that Automake does not and cannot support spaces in
1170 filenames that are involved during the build. This change affects
1171 only installation paths, so that `make install' does not bomb out
1172 in packages configured with
1173 ./configure --prefix '/c/Program Files'
1175 - Fix the depfiles output so it works with GNU sed (<4.1) even when
1176 POSIXLY_CORRECT is set.
1178 - Do not AC_SUBST(LIBOBJS) in AM_WITH_REGEX. This macro was unusable
1179 since Autoconf 2.54, which defines LIBOBJS itself.
1181 - Fix a potential (but unlikely) race condition in parallel elisp
1182 builds. (Introduced in 1.7.3.)
1184 - Do not assume that users override _DEPENDENCIES in all conditions
1185 where Automake will try to define them.
1187 - Do not use `mkdir -p' in mkinstalldirs, unless this is GNU mkdir.
1188 Solaris 8's `mkdir -p' is not thread-safe and can break parallel
1191 This fix also affects the $(mkdir_p) variable defined since
1192 Automake 1.8. It will be set to `mkdir -p' only if mkdir is GNU
1193 mkdir, and to `mkinstalldirs' or `install-sh -d' otherwise.
1195 - Secure temporary directory creation in `make distcheck'. (PR/413)
1197 - Do not generate two build rules for `parser.h' when the
1198 parser appears in two different conditionals.
1200 - Work around a Solaris 8 /bin/sh bug in the test for dependency
1201 checking. Usually ./configure will not pick this shell; so this
1202 fix only helps cases where the shell is forced to /bin/sh.
1204 * Bugs introduced by 1.8:
1206 - In some situations (hand-written `m4_include's), aclocal would
1207 call the `File::Spec->rel2abs' method, which was only introduced
1208 in Perl 5.6. This new version reestablish support Perl 5.005.
1210 It is likely that the next major Automake releases will require at
1211 least Perl 5.6. Consider upgrading your development environment
1212 if you are still using the five-year-old Perl 5.005.
1214 - Automake would sometimes fail to define rules for targets listed
1215 in variables defined in multiple conditions. For instance on
1221 it would define only the `a.$(OBJEXT): a.c' rule and omit the
1222 `b.$(OBJEXT): b.c' rule.
1224 * New sections in manual:
1226 - Third-Party Makefiles: how to interface third party Makefiles.
1227 - Upgrading: upgrading packages to newer Automake versions.
1228 - Multiple Outputs: handling tools that produce many outputs.
1230 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1234 * A (well known) portability bug slipped in the changes made to
1235 install-sh in Automake 1.8.1. The broken install-sh would refuse to
1236 install anything on Tru64.
1238 * Fix install rules for conditionally built python files. (This never
1241 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1245 * Bugs introduced by 1.8:
1247 - Fix Config.pm import error with old Perl versions (at least
1248 5.005_03). One symptom is that aclocal could not find its macro
1251 - Automake 1.8 used `mkdir -m 0755 -p --' to ensure that directories
1252 created by `make install' are always world readable, even if the
1253 installer happens to have an overly restrictive umask (e.g. 077).
1254 This was a mistake and has been reverted. There are at least two
1255 reasons why we must not use `-m 0755':
1256 - it causes special bits like SGID to be ignored,
1257 - it may be too restrictive (some setups expect 775 directories).
1259 - Fix aclocal to honor definitions located in files which have been
1260 m4_included manually. aclocal 1.8 had been updated to check
1261 m4_included files for new requirements, but forgot that these
1262 m4_included files can also provide new definitions.
1264 Note that if you have such a setup, we recommend you get rid of
1265 it. In the past, there was a reason to m4_include files manually:
1266 aclocal used to duplicate entire M4 files into aclocal.m4, even
1267 files that were distributed. Some packages were therefore
1268 m4_including the distributed file directly, and playing some
1269 tricks to ensure aclocal would not copy that file to aclocal.m4,
1270 in order to limit the amount of duplication. Since aclocal 1.8.x
1271 will precisely output m4_includes for local M4 files, we recommend
1272 that you clean up your setup, removing all manual m4_includes and
1273 letting aclocal output them.
1275 - Output detailed menus in the Info version if the Automake manual,
1276 so that Emacs can locate the indexes.
1278 - configure.ac and configure were listed twice in DIST_COMMON (an
1279 internal variable where Automake lists configury files to
1280 distribute). This was harmless, but unaesthetic.
1282 - Use `chmod a-w' instead of `chmod -w' as the latter honors umask.
1283 This was an issue only in the Automake package itself, not in
1286 - Automake assumed that all AC_CONFIG_LINKS arguments had the form
1287 DEST:SRC. This was wrong, as some packages do
1288 AC_CONFIG_LINKS($computedlinks). This version no longer abort in
1291 - Contrary to mkinstalldirs, $(mkdir_p) was expecting exactly one
1292 argument. This caused two kinds of failures:
1293 - Rules installing data in a conditionally defined directory
1294 failed when that directory was undefined. In this case no
1295 argument was supplied.
1296 - `make installdirs' failed, because several directories were
1297 passed to $(mkdir_p). This was an issue only on platform
1298 were $(mkdir_p) is implemented with `install-sh -d'.
1299 $(mkdir_p) as been changed to accept 0 or more arguments, as
1302 * Long-standing bugs:
1304 - Fix an unexpected diagnostic occurring when users attempt
1305 to override some internal variables that Automake appends to.
1307 - aclocal now scans configure.ac for macro definitions (PR/319).
1309 - Fix a portability issue with OSF1/Tru64 Make. If a directory
1310 distributes files which are outside itself (this usually occurs
1311 when using AC_CONFIG_AUX_DIR([../dir]) to use auxiliary files
1312 from a parent package), then `make distcheck' fails due to an
1313 optimization performed by OSF1/Tru64 Make in its VPATH handling.
1314 (tests/subpkg2.test failure)
1316 - Fix another portability issue with Sun and OSF1/Tru64 Make.
1317 In a VPATH-build configuration, `make install' would install
1318 nobase_ files to wrong locations.
1320 - Fix a Perl `uninitialized value' diagnostic occurring when
1321 automake complains that a Texinfo file does not have a
1322 @setfilename statement.
1324 - Erase config.status.lineno during `make distclean'. This file
1325 can be created by config.status. Automake already knew about
1326 configure.lineno, but forgot config.status.lineno.
1328 - Distribute all files, even those which are built and installed
1329 conditionally. This change affects files listed in conditionally
1330 defined *_HEADERS and *_PYTHON variable (unless they are nodist_*)
1331 as well as those listed in conditionally defined dist_*_DATA,
1332 dist_*_JAVA, dist_*_LISP, and dist_*_SCRIPTS variables.
1334 - Fix AM_PATH_LISPDIR to avoid \? in sed regular expressions; it
1335 doesn't conform to POSIX.
1337 - Normalize help strings for configure variables and options added
1342 - Check for python2.4 in AM_PATH_PYTHON.
1344 * Spurious failures in test suite:
1346 - tests/libtool5.test, tests/ltcond.test, tests/ltcond2.test,
1347 tests/ltconv.test: fix failures with CVS Libtool.
1348 - tests/aclocal6.test: fix failure if autom4te.cache is disabled.
1349 - tests/txinfo24.test, tests/txinfo25.test, tests/txinfo28.test:
1350 fix failures with old Texinfo versions.
1352 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1358 - The NEWS file is more verbose.
1362 - Autoconf 2.58 or greater is required.
1366 - Default source file names in the absence of a _SOURCES declaration
1367 are made by removing any target extension before appending `.c', so
1368 to make the libtool module `foo.la' from `foo.c', you only need to
1371 lib_LTLIBRARIES = foo.la
1372 foo_la_LDFLAGS = -module
1374 For backward compatibility, foo_la.c will be used instead of
1375 foo.c if this file exists or is the explicit target of a rule.
1376 However -Wobsolete will warn about this deprecated naming.
1378 - AR's `cru' flags are now set in a global ARFLAGS variable instead
1379 of being hard-coded in each $(AR) invocation, so they can be
1380 substituted from configure.ac. This has been requested by people
1381 dealing with non-POSIX ar implementations.
1383 - New warning option: -Woverride. This will warn about any user
1384 target or variable definitions which override Automake
1387 - Texinfo rules back up and restore info files when makeinfo fails.
1389 - Texinfo rules now support the `html' target.
1390 Running this requires Texinfo 4.0 or greater.
1392 `html' is a new recursive target, so if your package mixes
1393 hand-crafted `Makefile.in's with Automake-generated
1394 `Makefile.in's, you should adjust the former to support (or
1395 ignore) this target so that `make html' recurses successfully. If
1396 you had a custom `html' rule in your `Makefile.am', it's better to
1397 rename it as `html-local', otherwise your rule will override
1398 Automake's new rule (you can check that by running `automake
1399 -Woverride') and that will stop the recursion to subdirectories.
1401 Last but not least, this `html' rule is declared PHONY, even when
1402 overridden. Fortunately, it appears that few packages use a
1403 non-PHONY `html' rule.
1405 - Any file which is m4_included from configure.ac will appear as a
1406 configure and Makefile.in dependency, and will be automatically
1409 - The rules for rebuilding Makefiles and Makefile.ins will now
1410 rebuild all Makefiles and all Makefile.ins at once when one of
1411 configure's dependencies has changed. This is considerably faster
1412 than previous implementations, where config.status and automake
1413 were run separately in each directory (this still happens when you
1414 change a Makefile.am locally, without touching configure.ac or
1415 friends). Doing this also solves a longstanding issue: these
1416 rebuild rules failed to work when adding new directories to the
1417 tree, forcing you to run automake manually.
1419 - For similar reasons, the rules to rebuild configure,
1420 config.status, and aclocal.m4 are now defined in all directories.
1421 Note that if you were using the CONFIG_STATUS_DEPENDENCIES and
1422 CONFIGURE_DEPENDENCIES (formerly undocumented) variables, you
1423 should better define them in all directories. This is easily done
1424 using an AC_SUBST (make sure you prefix these dependencies with
1425 $(top_srcdir) since this variable will appear at different
1426 levels of the build tree).
1428 - aclocal will now use `m4_include' instead of copying local m4
1429 files into aclocal.m4. (Local m4 files are those you ship with
1430 your project, other files will be copied as usual.)
1432 Because m4_included files are automatically distributed, it means
1433 for most projects there is no point in EXTRA_DISTing the list of
1434 m4 files which are used. (You can probably get rid of
1435 m4/Makefile.am if you had one.)
1437 - aclocal will avoid touching aclocal.m4 when possible, so that
1438 Autom4te's cache isn't needlessly invalidated. This behavior can
1439 be switched off with the new `--force' option.
1441 - aclocal now uses Autoconf's --trace to detect macros which are
1442 actually used and will no longer include unused macros simply
1443 because they where mentioned. This was often the case for macros
1444 called conditionally.
1446 - New options no-dist and no-dist-gzip.
1448 - compile, depcomp, elisp-comp, install-sh, mdate-sh, mkinstalldirs,
1449 py-compile, and ylwrap, now all understand --version and --help.
1451 - Automake will now recognize AC_CONFIG_LINKS so far as removing created
1452 links as part of the distclean target and including source files in
1455 - AM_PATH_PYTHON now supports ACTION-IF-FOUND and ACTION-IF-NOT-FOUND
1456 argument. The latter can be used to override the default behavior
1457 (which is to abort).
1459 - Automake will exit with $? = 63 on version mismatch. (So does
1460 Autoconf 2.58) missing knows this, and in this case it will
1461 emulate the tools as if they were absent. Because older versions
1462 of Automake and Autoconf did not use this exit code, this change
1463 will only be useful in projects generated with future versions of
1466 - When using AC_CONFIG_FILES with multiple input files, Automake
1467 generates the first ".in" input file for which a ".am" exists.
1468 (Former versions would try to use only the first input file.)
1470 - lisp_DATA is now allowed. If you are using the empty ELCFILES
1471 idiom to disable byte-compilation of lisp_LISP files, it is
1472 recommended that you switch to using lisp_DATA. Note that
1473 this is not strictly equivalent: lisp_DATA will install elisp
1474 files even if emacs is not installed, while *_LISP do not
1475 install anything unless emacs is found.
1477 - Makefiles will prefer `mkdir -p' over mkinstalldirs if it is
1478 available. This selection is achieved through the Makefile
1479 variable $(mkdir_p) that is set by AM_INIT_AUTOMAKE to either
1480 `mkdir -m 0755 -p --', `$(mkinstalldirs) -m 0755', or
1481 `$(install_sh) -m 0755 -d'.
1485 - Because `mkdir -p' is available on most platforms, and we can use
1486 `install-sh -d' when it is not, the use of the mkinstalldirs
1487 script is being phased out. `automake --add-missing' no longer
1488 installs it, and if you remove mkinstalldirs from your package,
1489 automake will define $(mkinstalldirs) as an alias for $(mkdir_p).
1491 Gettext 0.12.1 still requires mkinstalldirs. Fortunately
1492 gettextize and autopoint will install it when needed. Automake
1493 will continue to define the $(mkinstalldirs) and to distribute
1494 mkinstalldirs when this script is in the source tree.
1496 - AM_PROG_CC_STDC is now empty. The content of this macro was
1497 merged in AC_PROG_CC. If your code uses $am_cv_prog_cc_stdc, you
1498 should adjust it to use $ac_cv_prog_cc_stdc instead. (This
1499 renaming should be safe, even if you have to support several,
1500 versions of Automake, because AC_PROG_CC defines this variable
1501 since Autoconf 2.54.)
1503 - Some users where using the undocumented ACLOCAL_M4_SOURCES
1504 variable to override the aclocal.m4 dependencies computed
1505 (inaccurately) by older versions of Automake. Because Automake
1506 now tracks configure's m4 dependencies accurately (see m4_include
1507 above), the use of ACLOCAL_M4_SOURCES should be considered
1508 obsolete and will be flagged as such when running `automake
1513 - Defining programs conditionally using Automake conditionals no
1514 longer leads to a combinatorial explosion. The following
1515 construct used to be troublesome when used with dozens of
1530 Likewise for _SOURCES, _LDADD, and _LIBADD variables.
1532 - Due to implementation constraints, previous versions of Automake
1533 proscribed multiple conditional definitions of some variables
1543 All _PROGRAMS, _LDADD, and _LIBADD variables were affected.
1544 This restriction has been lifted, and these variables now
1545 support multiple conditional definitions as do other variables.
1547 - Cleanup the definitions of $(distdir) and $(top_distdir).
1548 $(top_distdir) now points to the root of the distribution
1549 directory created during `make dist', as it did in Automake 1.4,
1550 not to the root of the build tree as it did in intervening
1551 versions. Furthermore these two variables are now only defined in
1552 the top level Makefile, and passed to sub-directories when running
1555 - The --no-force option now correctly checks the Makefile.in's
1556 dependencies before deciding not to update it.
1558 - Do not assume that make files are called Makefile in cleaning rules.
1560 - Update .info files in the source tree, not in the build tree. This
1561 is what the GNU Coding Standard recommend. Only Automake 1.7.x
1562 used to update these files in the build tree (previous versions did
1563 it in the source tree too), and it caused several problems, varying
1564 from mere annoyance to portability issues.
1566 - COPYING, COPYING.LIB, and COPYING.LESSER are no longer overwritten
1567 when --add-missing and --force-missing are used. For backward
1568 compatibility --add-missing will continue to install COPYING (in
1569 `gnu' strictness) when none of these three files exist, but this
1570 use is deprecated: you should better choose a license yourself and
1571 install it once for all in your source tree (and in your code
1574 - Fix ylwrap so that it does not overwrite header files that haven't
1575 changed, as the inline rule already does.
1577 - User-defined rules override automake-defined rules for the same
1578 targets, even when rules do not have commands. This is not new
1579 (and was documented), however some of the automake-generated
1580 rules have escaped this principle in former Automake versions.
1581 Rules for the following targets are affected by this fix:
1583 clean, clean-am, dist-all, distclean, distclean-am, dvi, dvi-am,
1584 info, info-am, install-data-am, install-exec-am, install-info,
1585 install-info-am, install-man, installcheck-am, maintainer-clean,
1586 maintainer-clean-am, mostlyclean, mostlyclean-am, pdf, pdf-am,
1587 ps, ps-am, uninstall-am, uninstall-info, uninstall-man
1589 Practically it means that an attempt to supplement the dependencies
1590 of some target, as in
1592 clean: my-clean-rule
1594 will now *silently override* the automake definition of the
1595 rule for this target. Running `automake -Woverride' will diagnose
1596 all such overriding definitions.
1598 It should be noted that almost all these targets support a *-local
1599 variant that is meant to supplement the automake-defined rule
1600 (See node `Extending' in the manual). The above rule should
1603 clean-local: my-clean-rule
1605 These *-local targets have been documented since at least
1606 Automake 1.2, so you should not fear the change if you have
1607 to support multiple automake versions.
1611 - The Automake manual is now distributed under the terms of the GNU FDL.
1613 - Targets dist-gzip, dist-bzip2, dist-tarZ, dist-zip are always defined.
1615 - core dumps are no longer removed by the cleaning rules. There are
1616 at least three reasons for this:
1617 1. These files should not be created by any build step,
1618 so their removal do not fit any of the cleaning rules.
1619 Actually, they may be precious to the developer.
1620 2. If such file is created during a build, then it's clearly a
1621 bug Automake should not hide. Not removing the file will
1622 cause `make distcheck' to complain about its presence.
1623 3. Operating systems have different naming conventions for
1624 core dump files. A core file on one system might be a
1625 completely legitimate data file on another system.
1627 - RUNTESTFLAGS, CTAGSFLAGS, ETAGSFLAGS, JAVACFLAGS are no longer
1628 defined by Automake. This means that any definition in the
1629 environment will be used, unless overridden in the Makefile.am or
1630 on the command line. The old behavior, where these variables were
1631 defined empty in each Makefile, can be obtained by AC_SUBSTing or
1632 AC_ARG_VARing each variable from configure.ac.
1634 - CONFIGURE_DEPENDENCIES and CONFIG_STATUS_DEPENDENCIES are now
1635 documented. (The is not a new feature, these variables have
1636 been there since at least Automake 1.4.)
1638 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1640 Bugs fixed in 1.7.9:
1641 * Fix install-strip to work with nobase_ binaries.
1642 * Fix renaming of #line directives in ylwrap.
1643 * Rebuild with Autoconf 2.59. (1.7.8 was not installable with pdksh.)
1645 Bugs fixed in 1.7.8:
1646 * Remove spurious blank lines in cleaning rules introduced in 1.7.7.
1647 * Fix detection of Debian's install-info, broken since version 1.5.
1648 (Debian bug #213524).
1649 * Honor -module if it appears in AM_LDFLAGS (i.e., relax name checking)
1650 This was only done for libfoo_LDFLAGS and LDFLAGS in previous versions.
1652 Bugs fixed in 1.7.7:
1653 * The implementation of automake's --no-force option is unreliable,
1654 so this option is ignored in this version. A real fix will appear in
1655 Automake 1.8. (Debian Bug #206299)
1656 * AM_PATH_PYTHON: really check the whole list of interpreters if no
1657 argument is given. (PR/399)
1658 * Do not warn about leading `_' in variable names, even with -Wportability.
1659 * Support user redefinitions of TEXINFO_TEX.
1660 * depcomp: support AIX Compiler version 6.
1661 * Fix missing rebuilds during `make dist' with BSD make.
1662 (Could produce tarballs containing out-of-date files.)
1663 * Resurrect multilib support.
1664 * Noteworthy manual updates:
1665 - Extending aclocal: how to write m4 macros that won't trigger warnings
1667 - A Shared Library: Rewrite and split into subsections.
1669 Bugs fixed in 1.7.6:
1670 * Fix depcomp's icc mode for ICC 7.1.
1671 * Diagnose calls to AC_CONFIG_FILES and friends with not enough arguments.
1672 * Fix maintainer-clean's removal of autom4te.cache in VPATH builds.
1673 * Fix AM_PATH_LISPDIR to work with POSIXLY_CORRECT=1.
1674 * Fix the location reported in some diagnostics related to AUTOMAKE_OPTIONS.
1675 * Remove Latin-1 characters from elisp-comp.
1676 * Update the manual's @dircategory to match the Free Software Directory.
1678 Bugs fixed in 1.7.5:
1679 * Update install-sh's license to remove an advertising clause.
1680 (Debian bug #191717)
1681 * Fix a bug introduced in 1.7.4, related to BUILT_SOURCE handling,
1682 that caused invalid Makefile.ins to be generated.
1683 * Make sure AM_MAKE_INCLUDE doesn't fail when a `doit' file exists.
1684 * New FAQ entry: renamed objects.
1686 Bugs fixed in 1.7.4:
1687 * Tweak the TAGS rule to support Exuberant Ctags (in addition to
1688 the Emacs implementation)
1689 * Fix output of aclocal.m4 dependencies in subdirectories.
1690 * Use `mv -f' instead of `mv' in fastdep rules.
1691 * Upgrade mdate-sh to work on OS/2.
1692 * Don't byte-compile elisp files when ELCFILES is set empty.
1693 (this documented feature was broken by 1.7.3)
1694 * Diagnose trailing backslashes on last line of Makefile.am.
1695 * Diagnose whitespace following trailing backslashes.
1696 * Multiple tests are now correctly supported in DEJATOOL. (PR/388)
1697 * Fix rebuilt rules for AC_CONFIG_FILES([Makefile:Makefile.in:Makefile.bot])
1699 * `make install' will build `BUILT_SOURCES' first.
1700 * Minor documentation fixes.
1702 Bugs fixed in 1.7.3:
1703 * Fix stamp files numbering (when using multiple AC_CONFIG_HEADERS).
1704 * Query distutils for `pythondir' and `pythonexecdir', instead of
1705 using an hardcoded path. This should allow builds on 64-bit
1706 distributions that usually use lib64/ instead of lib/.
1707 * AM_PATH_PYTHON will also search for python2.3.
1708 * elisp files are now built all at once instead of one by one. Besides
1709 incurring a speed-up, this is required to support interdependent elisp files.
1710 * Support for DJGPP:
1711 - `make distcheck' will now work in `_inst/' and `_build' instead
1712 of `=inst/' and `=build/'
1713 - use `_dirstamp' when the file-system doesn't support `.dirstamp'
1714 - install/uninstall `*.i[0-9][0-9]'-style info files
1715 - more changes that affect only the Automake package (not its output)
1716 * Fix some incompatibilities with upcoming perl-5.10.
1717 * Properly quote AC_PACKAGE_TARNAME and AC_PACKAGE_VERSION when defining
1718 PACKAGE and VERSION.
1720 - dashmstdout and dashXmstdout modes: don't use `-o /dev/null', this
1721 is troublesome with gcc and Solaris compilers. (PR/385)
1722 - makedepend mode: work with Libtool. (PR/385 too)
1724 * better support for unusual gettext setups, such as multiple po/ directories
1726 - Flag missing po/ and intl/ directories as warnings, not errors.
1727 - Disable these warnings if po/ does not exist.
1728 * Noteworthy manual updates:
1730 - Document how AC_CONFIG_AUX_DIR interacts with missing files.
1732 - Document `AM_YFLAGS = -d'. (PR/382)
1734 Bugs fixed in 1.7.2:
1735 * Fix installation and uninstallation of Info files built in subdirectories.
1736 * Do not run `./configure --with-included-gettext' during `make distcheck'
1737 if AM_GNU_GETTEXT([external]) is used.
1738 * Correctly uninstall renamed man pages.
1739 * Do not strip escaped newline in variables defined in one condition
1740 and augmented in another condition.
1741 * Fix ansi2knr rules for LIBOBJS sources.
1742 * Clean all known Texinfo index files, not only those which appear to
1743 be used, because we cannot know which indexes are used in included files.
1744 (PR/375, Debian Bug #168671)
1745 * Honor only the first @setfilename seen in a Texinfo file.
1746 * Treat "required file X not found" diagnostics as errors (exit status 1).
1747 * Don't complain that a required file is not found when it is a Makefile
1749 * Don't use single suffix inference rules when building `.info'-less
1750 Info files, for the sake of Solaris make.
1751 * The `check' target now depends on `$(BUILT_SOURCES)'. (PR/359)
1752 * Recognize multiple inference rules such as `.a.b .c.d:'. (PR/371)
1753 * Warn about multiple inference rules when -Wportability is used. (PR/372)
1754 * Fix building of deansified files from subdirectories. (PR/370)
1755 * Add missing `fi' in the .c->.obj rules.
1756 * Improve install-sh to work even when names contain spaces or certain
1757 (but not all) shell metachars.
1758 * Fix the following spurious failures in the test suite:
1759 depcomp2.test, gnits2.test, gnits3.test, python3.test, texinfo13.test
1760 * Noteworthy manual updates:
1761 - Augment the section about BUILT_SOURCES.
1762 - Mention that AM_PROG_CC_STDC is a relic that is better avoided today.
1764 Bugs fixed in 1.7.1:
1765 * Honor `ansi2knr' for files built in subdirectories, or using per-targets
1767 * Aclocal should now recognize macro names containing parentheses, e.g.
1768 AC_DEFUN([AC_LANG_PREPROC(Fortran 90)], [...]).
1769 * Erase *.sum and *.log files created by DejaGnu, during `make distclean'.
1771 * Install Python files even if they were built. (PR/369)
1772 * Have stamp-vti dependent upon configure instead of configure.ac, as the
1773 version might not be defined in the latter. (PR/358)
1774 * Reorder arguments passed to a couple of commands, so things works
1775 when POSIXLY_CORRECT=1.
1776 * Fix a regex that can cause Perl to segfault on large input.
1778 * Fix distribution of packages that have some sources defined conditionally,
1779 as in the `Conditional compilation using Automake conditionals' example
1781 * Fix spurious test suite failures on IRIX.
1782 * Don't report a required variable as undefined if it has been
1783 defined conditionally for the "right" conditions.
1784 * Fix cleaning of the /tmp subdirectory used by `make distcheck', in case
1785 `make distcheck' fails.
1786 * Fix distribution of included Makefile fragment, so we don't create
1787 spurious directories in the distribution. (PR/366)
1788 * Don't complain that a target lacks `.$(EXEEXT)' when it has it.
1791 * Autoconf 2.54 is required.
1792 * `aclocal' and `automake' will no longer warn about obsolete
1793 configure macros. This is done by `autoconf -Wobsolete'.
1794 * AM_CONFIG_HEADER, AM_SYS_POSIX_TERMIOS and
1795 AM_HEADER_TIOCGWINSZ_NEEDS_SYS_IOCTL are obsolete (although still
1796 supported). You should use AC_CONFIG_HEADERS, AC_SYS_POSIX_TERMIOS,
1797 and AC_HEADER_TIOCGWINSZ instead. `autoupdate' can upgrade
1798 `configure.ac' for you.
1799 * Support for per-program and per-library `_CPPFLAGS'.
1800 * New `ctags' target (builds CTAGS files).
1801 * Support for -Wmumble and -Wno-mumble, where mumble is a warning category
1802 (see `automake --help' or the manual for a list of them).
1803 * Honor the WARNINGS environment variable.
1804 * Omit the call to depcomp when using gcc3: call the compiler directly.
1805 * A new option, std-options, tests that programs support --help and --version
1806 when `make installcheck' is run. This is enabled by --gnits.
1807 * Texinfo rules now support the `ps' and `pdf' targets.
1808 * Info files are now created in the build directory, not the source directory.
1809 * info_TEXINFOS supports files in subdirectories (this requires Texinfo 4.1
1811 * `make distcheck' will enforce DESTDIR support by attempting
1813 * `+=' can be used in conditionals, even if the augmented variable
1814 was defined for another condition.
1815 * Makefile fragments (inserted with `include') are always distributed.
1816 * Use Autoconf's --trace interface to inspect configure.ac and get
1817 a more accurate view of it.
1818 * Add support for extending aclocal's default macro search path
1819 using a `dirlist' file within the aclocal directory.
1820 * automake --output-dir is deprecated.
1821 * The part of the distcheck target that checks whether uninstall actually
1822 removes all installed files has been moved in a separate target,
1823 distuninstallcheck, so it can be overridden easily.
1827 * Support for AM_INIT_GETTEXT([external])
1828 * Bug fixes, including:
1829 - Fix Automake's own `make install' so it works even if `ln' doesn't.
1830 - nobase_ programs and scripts honor --program-transform correctly.
1831 - Erase configure.lineno during `make distclean'.
1832 - Erase YACC and LEX outputs during `make maintainer-clean'.
1835 * Many bug fixes, including:
1836 - Requiring the current version works.
1837 - Fix "$@" portability issues (for Zsh).
1838 - Fix output of dummy dependency files in presence of post-processed
1840 - Don't compute dependencies in background to avoid races with libtool.
1841 - Fix handling of _OBJECTS variables for targets sharing source variables.
1842 - Check dependency mode for Java when AM_PROG_GCJ is used.
1845 * automake --output-dir is deprecated
1846 * Many bug fixes, including:
1847 - Don't choke on AM_LDFLAGS definitions.
1848 - Clean libtool objects from subdirectories.
1849 - Allow configure variables with reserved suffix and unknown prefix
1850 (e.g. AC_SUBST(mumble_LDFLAGS) when 'mumble' is not a target).
1851 - Fix the definition of AUTOMAKE and ACLOCAL in configure.
1854 * Autoconf 2.52 is required.
1855 * automake no longer run libtoolize.
1856 This is the job of autoreconf (from GNU Autoconf).
1857 * `dist' generates all the archive flavors, as did `dist-all'.
1858 * `dist-gzip' generates the Gzip tar file only.
1859 * Combining Automake Makefile conditionals no longer lead to a combinatorial
1860 explosion. Makefile.in's keep a reasonable size.
1861 * AM_FUNC_ERROR_AT_LINE, AM_FUNC_STRTOD, AM_FUNC_OBSTACK, AM_PTRDIFF_T
1862 are no longer shipped, since Autoconf 2.52 provides them (both as AM_
1864 * `#line' of Lex and Yacc files are properly set.
1865 * EXTRA_DIST can contain generated directories.
1866 * Support for dot-less extensions in suffix rules.
1867 * The part of the distcheck target that checks whether distclean actually
1868 cleans all built files has been moved in a separate target, distcleancheck,
1869 so it can be overridden easily.
1870 * `make distcheck' will pass additional options defined in
1871 $(DISTCHECK_CONFIGURE_FLAGS) to configure.
1872 * Fixed CDPATH portability problems, in particular for MacOS X.
1873 * Fixed handling of nobase_ targets.
1874 * Fixed support of implicit rules leading to .lo objects.
1875 * Fixed late inclusion of --add-missing files (e.g. depcomp) in DIST_COMMON
1876 * Added uninstall-hook target
1877 * `AC_INIT AM_INIT_AUTOMAKE(tarname,version)' is an obsolete construct.
1878 You can now use `AC_INIT(pkgname,version) AM_INIT_AUTOMAKE' instead.
1879 (Note that "pkgname" is not "tarname", see the manual for details.)
1880 It is also possible to pass a list of global Automake options as
1881 first argument to this new form of AM_INIT_AUTOMAKE.
1882 * Compiler-based assembler is now called `CCAS'; people expected `AS'
1883 to be a real assembler.
1884 * AM_INIT_AUTOMAKE will set STRIP itself when it needs it. Adding
1885 AC_CHECK_TOOL([STRIP], [strip]) manually is no longer required.
1886 * aclocal and automake are also installed with the version number
1887 appended, and some of the install directory names have changed.
1888 This lets you have multiple versions installed simultaneously.
1889 * Support for parsers and lexers in subdirectories.
1892 * Support for `configure.ac'.
1893 * Support for `else COND', `endif COND' and negated conditions `!COND'.
1894 * `make dist-all' is much faster.
1895 * Allows '@' AC_SUBSTs in macro names.
1896 * Faster AM_INIT_AUTOMAKE (requires update of `missing' script)
1897 * User-side dependency tracking. Developers no longer need GNU make
1899 * Uses DIST_SUBDIRS in some situations when SUBDIRS is conditional
1900 * Most files are correctly handled if they appear in subdirs
1901 For instance, a _DATA file can appear in a subdir
1902 * GNU tar is no longer required for `make dist'
1903 * Added support for `dist_' and `nodist_' prefixes
1904 * Added support for `nobase_' prefix
1905 * Compiled Java support
1906 * Support for per-executable and per-library compilation flags
1910 * Added support for the Fortran 77 programming language.
1911 * Re-indexed the Automake Texinfo manual.
1912 * Added `AM_FOOFLAGS' variable for each compiler invocation;
1913 e.g. AM_CFLAGS can be used in Makefile.am to set C compiler flags
1914 * Support for latest autoconf, including support for objext
1915 * Can now put `.' in SUBDIRS to control build order
1916 * `include' command and `+=' support for macro assignment
1917 * Dependency tracking no long susceptible to deleted header file problem
1918 * Maintainer mode now a conditional. @MAINT@ is now an anachronism.
1923 * Better Cygwin32 support
1924 * Support for suffix rules with _SOURCES variables
1925 * New options `readme-alpha' and `check-news'; Gnits mode sets these
1926 * @LEXLIB@ no longer required when lex source seen
1927 Lex support in `missing', and new lex macro. Update your missing script.
1928 * Built-in support for assembly
1929 * aclocal gives error if `AM_' macro not found
1930 * Passed YFLAGS, not YACCFLAGS, to yacc
1931 * AM_PROG_CC_STDC does not have to come before AC_PROG_CPP
1932 * Dependencies computed as a side effect of compilation
1933 * Preliminary support for Java
1934 * DESTDIR support at "make install" time
1935 * Improved ansi2knr support; you must use the latest ansi2knr.c (included)
1939 * Better DejaGnu support
1940 * Added no-installinfo option
1941 * Added Emacs Lisp support
1942 * Added --no-force option
1943 * Included `aclocal' program
1944 * Automake will now generate rules to regenerate aclocal.m4, if appropriate
1945 * Now uses `AM_' macro names everywhere
1946 * ansi2knr option can have directory prefix (eg `../lib/ansi2knr')
1947 ansi2knr now works correctly on K&R sources
1948 * Better C++, yacc, lex support
1949 * Will compute _DEPENDENCIES variables automatically if not supplied
1950 * Will interpolate $(...) and ${...} when examining contents of a variable
1951 * .deps files now in build directory, not source directory; dependency
1952 handling generally rewritten
1953 * DATA, MANS and BUILT_SOURCES no longer included in distribution
1954 * can now put config.h into a subdir
1955 * Added dist-all target
1956 * Support for install-info program (see texinfo 3.9)
1957 * Support for "yacc -d"
1958 * configure substitutions are automatically discovered and included
1959 in generated Makefile.in
1960 * Special --cygnus mode
1961 * OMIT_DEPENDENCIES can now hold list of dependencies to be omitted
1962 when making distribution. Some dependencies are auto-ignored.
1963 * Changed how libraries are specified in _LIBRARIES variable
1964 * Full libtool support, from Gord Matzigkeit
1965 * No longer have to explicitly touch stamp-h when using AC_CONFIG_HEADER;
1966 AM_CONFIG_HEADER handles it automatically
1967 * Texinfo output files no longer need .info extension
1968 * Added `missing' support
1970 * Conditionals in Makefile.am, from Ian Taylor
1974 * distcheck target runs install and installcheck targets
1975 * Added preliminary support for DejaGnu.
1980 * More libtool fixes from Gord Matzigkeit; libtool support is still
1982 * Added support for jm_MAINTAINER_MODE
1984 * New "distcheck" target
1988 * mkinstalldirs and mdate-sh now appear in directory specified by
1990 * Removed DIST_SUBDIRS, DIST_OTHER
1991 * AC_ARG_PROGRAM only required when an actual program exists
1992 * dist-hook target now run before distribution packaged up; idea from
1993 Dieter Baron. Other hooks exist, too.
1994 * Preliminary (unfinished) support for libtool
1995 * Added short option names.
1996 * Better "dist" support when gluing together multiple packages
2000 * Documentation updates (many from François Pinard)
2001 * strictness `normal' now renamed to `foreign'
2002 * Renamed --install-missing to --add-missing
2003 * Now handles AC_CONFIG_AUX_DIR
2004 * Now handles TESTS macro
2005 * DIST_OTHER renamed to EXTRA_DIST
2006 * DIST_SUBDIRS is deprecated
2007 * @ALLOCA@ and @LIBOBJS@ now work in _LDADD variables
2008 * Better error messages in many cases
2009 * Program names are canonicalized
2010 * Added "check" prefix; from Gord Matzigkeit
2014 * configure.in scanner knows about AC_PATH_XTRA, AC_OUTPUT ":" syntax
2015 * Beginnings of a test suite
2016 * Automatically adds -I options for $(srcdir), ".", and path to config.h
2017 * Doesn't print anything when running
2018 * Beginnings of MAINT_CHARSET support
2019 * Can specify version in AUTOMAKE_OPTIONS
2020 * Most errors recognizable by Emacs' M-x next-error
2021 * Added --verbose option
2022 * All "primary" variables now obsolete; use EXTRA_PRIMARY to supply
2023 configure-generated names
2024 * Required macros now distributed in aclocal.m4
2026 * --strictness=gnu is default
2030 * More sophisticated configure.in scanning; now understands ALLOCA and
2031 LIBOBJS directly, handles AC_CONFIG_HEADER more precisely, etc.
2032 * TEXINFOS and MANS now obsolete; use info_TEXINFOS and man_MANS instead.
2033 * CONFIG_HEADER variable now obsolete
2034 * Can handle multiple Texinfo sources
2035 * Allow hierarchies deeper than 2. From Gord Matzigkeit.
2036 * HEADERS variable no longer needed; now can put .h files directly into
2037 foo_SOURCES variable.
2038 * Automake automatically rebuilds files listed in AC_OUTPUT. The
2039 corresponding ".in" files are included in the distribution.
2042 * Added --gnu and --gnits options
2043 * More standards checking
2045 * Cleaned up 'dist' targets
2046 * Added AUTOMAKE_OPTIONS variable and several options
2047 * Now scans configure.in to get some information (preliminary)
2050 * Works with Perl 4 again
2053 * Added --install-missing option.
2054 * Pretty-prints generated macros and rules
2055 * Comments in Makefile.am are placed more intelligently in Makefile.in
2056 * Generates .PHONY target
2057 * Rule or macro in Makefile.am now overrides contents of Automake file
2058 * Substantial cleanups from François Pinard
2062 * Works with Perl 4 again.
2065 * New uniform naming scheme.
2066 * --strictness option
2068 * '.c' files corresponding to '.y' or '.l' files are automatically
2070 * Many bug fixes and cleanups
2073 * Allow objects to be conditionally included in libraries via lib_LIBADD.
2076 * Bug fixes in 'clean' code.
2077 * Now generates 'installdirs' target.
2078 * man page installation reworked.
2079 * 'make dist' no longer re-creates all Makefile.in's.
2082 * Reimplemented in Perl
2083 * Added --amdir option (for debugging)
2084 * Texinfo support cleaned up.
2085 * Automatic de-ANSI-fication cleaned up.
2086 * Cleaned up 'clean' targets.
2089 * Automatic dependency tracking
2090 * More documentation
2091 * New variables DATA and PACKAGEDATA
2092 * SCRIPTS installed using $(INSTALL_SCRIPT)
2093 * No longer uses double-colon rules
2095 * Changes in advance of internationalization
2099 Copyright (C) 1995-2012 Free Software Foundation, Inc.
2101 This program is free software; you can redistribute it and/or modify
2102 it under the terms of the GNU General Public License as published by
2103 the Free Software Foundation; either version 2, or (at your option)
2106 This program is distributed in the hope that it will be useful,
2107 but WITHOUT ANY WARRANTY; without even the implied warranty of
2108 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
2109 GNU General Public License for more details.
2111 You should have received a copy of the GNU General Public License
2112 along with this program. If not, see <http://www.gnu.org/licenses/>.