3 * Obsolete features removed:
5 - The automake-provided $(mkdir_p) make variable, @mkdir_p@ configure
6 time substitution and AM_PROG_MKDIR m4 macro have been removed. They
7 had been obsolete since automake 1.10, and actively deprecated since
10 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
14 * Deprecated obsolescent features:
16 - The long-obsolete (since 1.10) automake-provided $(mkdir_p) make
17 variable, @mkdir_p@ configure-time substitution and AM_PROG_MKDIR
18 m4 macro are deprecated, eliciting a warning in the 'obsolete'
19 category. They will be removed in the next major version (1.13).
21 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
25 * WARNING: Future backward-incompatibilities!
27 - Starting from the next major Automake version (1.13), the rules to
28 build pdf, ps and dvi output from Texinfo input will use the '--tidy'
29 option by default. Since such an option was introduced in Texinfo
30 4.9, this means that Makefiles generated by future Automake versions
31 will require at least that version of Texinfo.
33 - Starting from the next major Automake version (1.13), the parallel
34 testsuite harness (previously only enabled by the 'parallel-tests'
35 option) will become the default one; the older serial testsuite
36 harness will still be available through the use of the 'serial-tests'
39 - The following long-obsolete m4 macros will be removed in the
40 next major Automake version (1.13):
42 AM_PROG_CC_STDC: superseded by AC_PROG_CC since October 2002
43 fp_PROG_CC_STDC: broken alias for AM_PROG_CC_STDC
44 fp_WITH_DMALLOC: old alias for AM_WITH_DMALLOC
45 AM_CONFIG_HEADER: superseded by AC_CONFIG_HEADERS since July 2002
46 ud_PATH_LISPDIR: old alias for AM_PATH_LISPDIR
47 jm_MAINTAINER_MODE: old alias for AM_MAINTAINER_MODE
48 ud_GNU_GETTEXT: old alias for AM_GNU_GETTEXT
49 gm_PROG_LIBTOOL: old alias for AC_PROG_LIBTOOL
50 fp_C_PROTOTYPES: old alias for AM_C_PROTOTYPES (which was part
51 of the now-removed automatic de-ANSI-fication
54 - All the "old alias" macros in 'm4/obsolete.m4' will be removed in
55 the next major Automake version (1.13).
57 - Support for the "Cygnus-style" trees (enabled by the 'cygnus' option)
58 will be deprecated in the next minor version of Automake (1.12.1) and
59 removed in the next major version (1.13).
61 - Support for the two- and three-arguments invocation forms of the
62 AM_INIT_AUTOMAKE macro will be deprecated in the next minor version
63 of Automake (1.12.1) and removed in the next major version (1.13).
65 - The '--acdir' option of aclocal is deprecated, and will probably
66 be removed in the next major Automake release (1.13). You should
67 use the options '--automake-acdir' and '--system-acdir' instead
68 (which have been introduced in Automake 1.11.2).
70 - The exact order in which the directories in the aclocal macro
71 search path are looked up is probably going to be changed in the
72 next Automake release (1.13).
74 * Obsolete features removed:
76 - The never documented nor truly used script 'acinstall' has been
79 - Support for automatic de-ANSI-fication has been removed.
81 - The support for the "obscure" multilib feature has been removed
82 from Automake core (but remains available in the 'contrib/'
83 directory of the Automake distribution).
85 - Support for ".log -> .html" conversion and the check-html and
86 recheck-html targets has been removed from Automake core (but
87 remains available in the 'contrib/' directory of the Automake
90 - The deprecated 'lzma' compression format for distribution archives
91 has been removed, in favor of 'xz' and 'lzip'.
93 - The obsolete AM_WITH_REGEX macro has been removed.
95 - The long-deprecated options '--output-dir', '--Werror' and
96 '--Wno-error' have been removed.
98 - The chapter on the history of Automake has been moved out of the
99 reference manual, into a new dedicated Texinfo file.
103 - New 'cscope' target to build a cscope database for the source tree.
105 * Changes to Automake-generated testsuite harnesses:
107 - The new automake option 'serial-tests' has been introduced. It can
108 be used to explicitly instruct automake to use the older serial
109 testsuite harness. This is still the default at the moment, but it
110 might change in future versions.
112 - The 'recheck' target (provided by the parallel testsuite harness) now
113 depends on the 'all' target. This allows for a better user-experience
114 in test-driven development. See automake bug#11252.
116 - Test scripts that exit with status 99 to signal an "hard error" (e.g.,
117 and unexpected or internal error, or a failure to set up the test case
118 scenario) have their outcome reported as an 'ERROR' now. Previous
119 versions of automake reported such an outcome as a 'FAIL' (the only
120 difference with normal failures being that hard errors were counted
121 as failures even when the test originating them was listed in
124 - The testsuite summary displayed by the parallel-test harness has a
125 completely new format, that always list the numbers of passed, failed,
126 xfailed, xpassed, skipped and errored tests, even when these numbers
127 are zero (but using smart coloring when the color-tests option is in
130 - The default testsuite driver offered by the 'parallel-tests' option is
131 now implemented (partly at least) with the help of automake-provided
132 auxiliary scripts (e.g., 'test-driver'), instead of relying entirely
133 on code in the generated Makefile.in.
134 This has two noteworthy implications. The first one is that projects
135 using the 'parallel-tests' option should now either run automake with
136 the '--add-missing' option, or manually copy the 'test-driver' script
137 into their tree. The second, and more important, implication is that
138 now, when the 'parallel-tests' option is in use, TESTS_ENVIRONMENT can
139 not be used anymore to define a test runner, and the command specified
140 in LOG_COMPILER (and <ext>_LOG_COMPILER) must be a *real* executable
141 program or script. For example, this is still a valid usage (albeit
144 TESTS_ENVIRONMENT = \
145 if test -n '$(STRICT_TESTS)'; then \
146 maybe_errexit='-e'; \
150 LOG_COMPILER = $(SHELL) $$maybe_errexit
152 while this is not anymore:
154 TESTS_ENVIRONMENT = \
155 $(SHELL) `test -n '$(STRICT_TESTS_CHECKING)' && echo ' -e'`
159 TESTS_ENVIRONMENT = \
160 run_with_perl_or_shell () \
162 if grep -q '^#!.*perl' $$1; then
168 LOG_COMPILER = run_with_perl_or_shell
170 - The package authors can now use customary testsuite drivers within
171 the framework provided by the 'parallel-tests' testsuite harness.
172 Consistently with the existing syntax, this can be done by defining
173 special makefile variables 'LOG_DRIVER' and '<ext>_LOG_DRIVER'.
175 - A new developer-reserved variable 'AM_TESTS_FD_REDIRECT' can be used
176 to redirect/define file descriptors used by the test scripts.
178 - The parallel-tests harness generates now, in addition the '.log' files
179 holding the output produced by the test scripts, a new set of '.trs'
180 files, holding "metadata" derived by the execution of the test scripts;
181 among such metadata are the outcomes of the test cases run by a script.
183 - Initial and still experimental support for the TAP test protocol is
186 * Changes to Yacc and Lex support:
188 - C source and header files derived from non-distributed Yacc and/or
189 Lex sources are now removed by a simple "make clean" (while they were
190 previously removed only by "make maintainer-clean").
192 - Slightly backward-incompatible change, relevant only for use of Yacc
193 with C++: the extensions of the header files produced by the Yacc
194 rules are now modelled after the extension of the corresponding
195 sources. For example, yacc files named "foo.y++" and "bar.yy" will
196 produce header files named "foo.h++" and "bar.hh" respectively, where
197 they would have previously produced header files named simply "foo.h"
198 and "bar.h". This change offers better compatibility with 'bison -o'.
200 * Miscellaneous changes:
202 - The AM_PROG_VALAC macro now causes configure to exit with status 77,
203 rather than 1, if the vala compiler found is too old.
205 - The build system of Automake itself now avoids the use of make
206 recursion as much as possible.
208 - Automake now prefers to quote 'like this' or "like this", rather
209 than `like this', in diagnostic message and generated Makefiles,
210 to accommodate the new GNU Coding Standards recommendations.
212 - Automake has a new option '--print-libdir' that prints the path of the
213 directory containing the Automake-provided scripts and data files.
215 - The 'dist' and 'dist-all' targets now can run compressors in parallel.
217 - The rules to create pdf, dvi and ps output from Texinfo files now
218 works better with modern 'texi2dvi' script, by explicitly passing
219 it the '--clean' option to ensure stray auxiliary files are not
220 left to clutter the build directory.
222 - Automake can now generate silenced rules for texinfo outputs.
224 - Some auxiliary files that are automatically distributed by Automake
225 (e.g., 'install-sh', or the 'depcomp' script for packages compiling
226 C sources) might now be listed in the DIST_COMMON variable in many
227 Makefile.in files, rather than in the top-level one.
229 - Messages of types warning or error from 'automake' and 'aclocal'
230 are now prefixed with the respective type, and presence of -Werror
233 - Automake's early configure-time sanity check now tries to avoid
234 sleeping for a second, which slowed down cached configure runs
235 noticeably. In that case, it will check back at the end of the
236 configure script to ensure that at least one second has passed, to
237 avoid time stamp issues with makefile rules rerunning autotools
240 - The warnings in the category 'extra-portability' are now enabled by
241 '-Wall'. In previous versions, one has to use '-Wextra-portability'
246 - Various minor bugfixes for recent or long-standing bugs.
248 * Bugs introduced by 1.11:
250 - The AM_COND_IF macro also works if the shell expression for the
251 conditional is no longer valid for the condition.
253 - The automake-provided parallel testsuite harness does not fail anymore
254 with BSD make used in parallel mode when there are test scripts in a
255 subdirectory, like in:
257 TESTS = sub/foo.test sub/bar.test
259 * Long-standing bugs:
261 - Automake's own build system finally have a real "installcheck" target.
263 - Vala-related cleanup rules are now more complete, and work better in
266 - Files listed with the AC_REQUIRE_AUX_FILE macro in configure.ac are
267 now automatically distributed also if the directory of the auxiliary
268 files coincides with the top-level directory.
270 - Automake now detects the presence of the '-d' flag in the various
271 '*YFLAGS' variables even when their definitions involve indirections
272 through other variables, such as in:
274 AM_YFLAGS = $(foo_opts)
276 - Automake now complains if a '*YFLAGS' variable has any conditional
277 content, not only a conditional definition.
279 - Explicit enabling and/or disabling of Automake warning categories
280 through the '-W...' options now always takes precedence over the
281 implicit warning level implied by Automake strictness (foreign, gnu
282 or gnits), regardless of the order in which such strictness and
283 warning flags appear. For example, a setting like:
284 AUTOMAKE_OPTIONS = -Wall --foreign
285 will cause the warnings in category 'portability' to be enabled, even
286 if those warnings are by default disabled in 'foreign' strictness.
288 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
290 Bugs fixed in 1.11.5:
292 * Bugs introduced by 1.11.3:
294 - Vala files with '.vapi' extension are now recognized and handled
295 correctly again. See automake bug#11222.
297 - Vala support work again for projects that contain some program
298 built from '.vala' (and possibly '.c') sources and some other
299 program built from '.c' sources *only*. See automake bug#11229.
301 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
305 * Miscellaneous changes:
307 - The 'ar-lib' script now ignores the "s" (symbol index) and "S" (no
308 symbol index) modifiers as well as the "s" action, as the symbol index
309 is created unconditionally by Microsoft lib. Also, the "q" (quick)
310 action is now a synonym for "r" (replace). Also, the script has been
311 ignoring the "v" (verbose) modifier already since Automake 1.11.3.
313 - When the 'compile' script is used to wrap MSVC, it now accepts an
314 optional space between the -I, -L and -l options and their respective
315 arguments, for better POSIX compliance.
317 - There is an initial, experimental support for automatic dependency
318 tracking with tcc (the Tiny C Compiler). Its associated depmode is
319 currently recognized as "icc" (but this and other details are likely
320 to change in future versions).
322 - Automatic dependency tracking now works also with the IBM XL C/C++
323 compilers, thanks to the new new depmode 'xlc'.
325 Bugs fixed in 1.11.4:
327 * Bugs introduced by 1.11.2:
329 - A definition of 'noinst_PYTHON' before 'python_PYTHON' (or similar)
330 don't cause spurious failures upon "make install" anymore.
332 - The user can now instruct the 'uninstall-info' rule not to update
333 the '${infodir}/dir' file by exporting the environment variable
334 'AM_UPDATE_INFO_DIR' to the value "no". This is done for consistency
335 with how the 'install-info' rule operates since automake 1.11.2.
337 * Long-standing bugs:
339 - It is now possible for a foo_SOURCES variable to hold Vala sources
340 together with C header files, as well as with sources and headers for
341 other supported languages (e.g., C++). Previously, only mixing C and
342 Vala sources was supported.
344 - If "aclocal --install" is used, and the first directory specified with
345 '-I' is non-existent, aclocal will now create it before trying to copy
348 - An empty declaration of a "foo_PRIMARY" don't cause anymore the
349 generated install rules to create an empty $(foodir) directory;
350 for example, if Makefile.am contains something like:
354 pkglibexec_SCRIPTS += bar.sh
357 the $(pkglibexec) directory will not be created upon "make install".
359 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
363 * Miscellaneous changes:
365 - Automake's own build system is more silent by default, making use of
366 the 'silent-rules' option.
368 - The master copy of the `gnupload' script is now maintained in gnulib,
371 - The `missing' script doesn't try to wrap calls to `tar' anymore.
373 - "make dist" doesn't wrap `tar' invocations with the `missing' script
374 anymore. Similarly, the obsolescent variable `$(AMTAR)' (which you
375 shouldn't be using BTW ;-) does not invoke the missing script anymore
376 to wrap tar, but simply invokes the `tar' program itself.
378 - "make dist" can now create lzip-compressed tarballs.
380 - In the Automake info documentation, the Top node and the nodes about
381 the invocation of the automake and aclocal programs have been renamed;
382 now, calling "info automake" will open the Top node, while calling
383 "info automake-invocation" and "info aclocal-invocation" will access
384 the nodes about the invocation of respectively automake and aclocal.
386 - Automake is now distributed as a gzip-compressed and an xz-compressed
387 tarball. Previously, bzip2 was used instead of xz.
389 - The last relics of Python 1.5 support have been removed from the
390 AM_PATH_PYTHON macro.
392 - For programs and libraries, automake now detects EXTRA_foo_DEPENDENCIES
393 and adds them to the normal list of dependencies, but without
394 overwriting the foo_DEPENDENCIES variable, which is normally computed
397 Bugs fixed in 1.11.3:
399 * Bugs introduced by 1.11.2:
401 - Automake now correctly recognizes the prefix/primary combination
402 `pkglibexec_SCRIPTS' as valid.
404 - The parallel-tests harness doesn't trip anymore on sed implementations
405 with stricter limits on the length of input lines (problem seen at
408 * Long-standing bugs:
410 - The "deleted header file problem" for *.am files is avoided by stub
411 rules. This allows `make' to trigger a rerun of `automake' also if
412 some previously needed `.am' file has been removed.
414 - The `silent-rules' option now generates working makefiles even
415 for the uncommon `make' implementations that do not support the
416 nested-variables extension to POSIX 2008. For such `make'
417 implementations, whether a build is silent is determined at
418 configure time, and cannot be overridden at make time with
419 `make V=0' or `make V=1'.
421 - Vala support now works better in VPATH setups.
423 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
427 * Changes to aclocal:
429 - The `--acdir' option is deprecated. Now you should use the new options
430 `--automake-acdir' and `--system-acdir' instead.
432 - The `ACLOCAL_PATH' environment variable is now interpreted as a
433 colon-separated list of additional directories to search after the
434 automake internal acdir (by default ${prefix}/share/aclocal-APIVERSION)
435 and before the system acdir (by default ${prefix}/share/aclocal).
437 * Miscellaneous changes:
439 - The Automake support for automatic de-ANSI-fication has been
440 deprecated. It will probably be removed in the next major Automake
443 - The `lzma' compression scheme and associated automake option `dist-lzma'
444 is obsoleted by `xz' and `dist-xz' due to upstream changes.
446 - You may adjust the compression options used in dist-xz and dist-bzip2.
447 The default is now merely -e for xz, but still -9 for bzip; you may
448 specify a different level via the XZ_OPT and BZIP2 envvars respectively.
449 E.g., "make dist-xz XZ_OPT=-7" or "make dist-bzip2 BZIP2=-5"
451 - The `compile' script now converts some options for MSVC for a better
452 user experience. Similarly, the new `ar-lib' script wraps Microsoft lib.
454 - The py-compile script now accepts empty arguments passed to the options
455 `--destdir' and `--basedir', and complains about unrecognized options.
456 Moreover, a non-option argument or a special `--' argument terminates
459 - A developer that needs to pass specific flags to configure at "make
460 distcheck" time can now, and indeed is advised to, do so by defining
461 the developer-reserved makefile variable AM_DISTCHECK_CONFIGURE_FLAGS,
462 instead of the old DISTCHECK_CONFIGURE_FLAGS.
463 The DISTCHECK_CONFIGURE_FLAGS variable should now be reserved for the
464 user; still, the old Makefile.am files that used to define it will
465 still continue to work as before.
467 - New macro AM_PROG_AR that looks for an archiver and wraps it in the new
468 'ar-lib' auxiliary script if the selected archiver is Microsoft lib.
469 This new macro is required for LIBRARIES and LTLIBRARIES when automake
470 is run with -Wextra-portability and -Werror.
472 - When using DejaGnu-based testsuites, the user can extend the `site.exp'
473 file generated by automake-provided rules by defining the special make
474 variable `$(EXTRA_DEJAGNU_SITE_CONFIG)'.
476 - The `install-info' rule can now be instructed not to create/update
477 the `${infodir}/dir' file, by exporting the new environment variable
478 `AM_UPDATE_INFO_DIR' to the value "no".
480 Bugs fixed in 1.11.2:
482 * Bugs introduced by 1.11:
484 - The parallel-tests driver no longer produces erroneous results with
485 Tru64/OSF 5.1 sh upon unreadable log files.
487 - The `parallel-tests' test driver does not report spurious successes
488 when used with concurrent FreeBSD make (e.g., "make check -j3").
490 - When the parallel-tests driver is in use, automake now explicitly
491 rejects invalid entries and conditional contents in TEST_EXTENSIONS,
492 instead of issuing confusing and apparently unrelated error messages
493 (e.g., "non-POSIX variable name", "bad characters in variable name",
494 or "redefinition of TEST_EXTENSIONS), or even, in some situations,
495 silently producing broken `Makefile.in' files.
497 - The `silent-rules' option now truly silences all compile rules, even
498 when dependency tracking is disabled. Also, when `silent-rules' is
499 not used, `make' output no longer contains spurious backslash-only
500 lines, thus once again matching what Automake did before 1.11.
502 - The AM_COND_IF macro also works if the shell expression for the
503 conditional is no longer valid for the condition.
505 * Long-standing bugs:
507 - The order of Yacc and Lex flags is fixed to be consistent with other
508 languages: $(AM_YFLAGS) comes before $(YFLAGS), and $(AM_LFLAGS) before
509 $(LFLAGS), so that the user variables override the developer variables.
511 - "make distcheck" now correctly complains also when "make uninstall"
512 leaves one and only one file installed in $(prefix).
514 - A "make uninstall" issued before a "make install", or after a mere
515 "make install-data" or a mere "make install-exec" does not spuriously
518 - Automake now warns about more primary/directory invalid combinations,
519 such as "doc_LIBRARIES" or "pkglib_PROGRAMS".
521 - Rules generated by Automake now try harder to not change any files when
522 `make -n' is invoked. Fixes include compilation of Emacs Lisp, Vala, or
523 Yacc source files and the rule to update config.h.
525 - Several scripts and the parallel-tests testsuite driver now exit with
526 the right exit status upon receiving a signal.
528 - A per-Makefile.am setting of -Werror does not erroneously carry over
529 to the handling of other Makefile.am files.
531 - The code for automatic dependency tracking works around a Solaris
532 make bug triggered by sources containing repeated slashes when the
533 `subdir-objects' option was used.
535 - The makedepend and hp depmodes now work better with VPATH builds.
537 - Java sources specified with check_JAVA are no longer compiled for
538 "make all", but only for "make check".
540 - An usage like "java_JAVA = foo.java" will now cause Automake to warn
541 and error out if `javadir' is undefined, instead of silently producing
542 a broken Makefile.in.
544 - aclocal and automake now honour the configure-time definitions of
545 AUTOCONF and AUTOM4TE when they spawn autoconf or autom4te processes.
547 - The `install-info' recipe no longer tries to guess whether the
548 `install-info' program is from Debian or from GNU, and adaptively
549 change its behaviour; this has proven to be frail and easy to
552 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
554 Bugs fixed in 1.11.1:
556 - Lots of minor bugfixes.
558 * Bugs introduced by 1.11:
560 - The `parallel-tests' test driver works around a GNU make 3.80 bug with
561 trailing white space in the test list (`TESTS = foo $(EMPTY)').
563 * Long standing bugs:
565 - On Darwin 9, `pythondir' and `pyexecdir' pointed below `/Library/Python'
566 even if the `--prefix' argument pointed outside of a system directory.
567 AM_PATH_PYTHON has been fixed to ignore the value returned from python's
568 `get_python_lib' function if it points outside the configured prefix,
569 unless the `--prefix' argument was either `/usr' or below `/System'.
571 - The testsuite does not try to change the mode of `ltmain.sh' files from
572 a Libtool installation (symlinked to test directories) any more.
574 - AM_PROG_GCJ uses AC_CHECK_TOOLS to look for `gcj' now, so that prefixed
575 tools are preferred in a cross-compile setup.
577 - The distribution is tarred up with mode 755 now by the `dist*' targets.
578 This fixes a race condition where untrusted users could modify files
579 in the $(PACKAGE)-$(VERSION) distdir before packing if the toplevel
580 build directory was world-searchable. This is CVE-2009-4029.
582 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
586 * Version requirements:
588 - Autoconf 2.62 or greater is required.
590 * Changes to aclocal:
592 - The autoconf version check implemented by aclocal in aclocal.m4
593 (and new in Automake 1.10) is degraded to a warning. This helps
594 in the common case where the Autoconf versions used are compatible.
596 * Changes to automake:
598 - The automake program can run multiple threads for creating most
599 Makefile.in files concurrently, if at least Perl 5.7.2 is available
600 with interpreter-based threads enabled. Set the environment variable
601 AUTOMAKE_JOBS to the maximum number of threads to use, in order to
602 enable this experimental feature.
604 * Changes to Libtool support:
606 - Libtool generic flags are now passed to the install and uninstall
609 - distcheck works with Libtool 2.x even when LT_OUTPUT is used, as
610 config.lt is removed correctly now.
614 - subdir-object mode works now with Fortran (F77, FC, preprocessed
615 Fortran, and Ratfor).
617 - For files with extension .f90, .f95, .f03, or .f08, the flag
618 $(FCFLAGS_f[09]x) computed by AC_FC_SRCEXT is now used in compile rules.
620 - Files with extension .sx are also treated as preprocessed assembler.
622 - The default source file extension (.c) can be overridden with
623 AM_DEFAULT_SOURCE_EXT now.
625 - Python 3.0 is supported now, Python releases prior to 2.0 are no
628 - AM_PATH_PYTHON honors python's idea about the site directory.
630 - There is initial support for the Vala programming language, when using
633 * Miscellaneous changes:
635 - Automake development is done in a git repository on Savannah now, see
637 http://git.sv.gnu.org/gitweb/?p=automake.git
639 A read-only CVS mirror is provided at
641 cvs -d :pserver:anonymous@pserver.git.sv.gnu.org:/automake.git \
642 checkout -d automake HEAD
644 - "make dist" can now create xz-compressed tarballs,
645 as well as (deprecated?) lzma-compressed tarballs.
647 - `automake --add-missing' will by default install the GPLv3 file as
648 COPYING if it is missing. It will also warn that the license file
649 should be added to source control. Note that Automake will never
650 overwrite an existing COPYING file, even when the `--force-missing'
653 - The manual is now distributed under the terms of the GNU FDL 1.3.
655 - Automake ships and installs man pages for automake and aclocal now.
657 - New shorthand `$(pkglibexecdir)' for `$(libexecdir)/@PACKAGE@'.
659 - install-sh supports -C, which does not update the installed file
660 (and its time stamps) if the contents did not change.
662 - The `gnupload' script has been revamped.
664 - The `depcomp' and `compile' scripts now work with MSVC under MSYS.
666 - The targets `install' and `uninstall' are more efficient now, in that
667 for example multiple files from one Automake variable such as
668 `bin_SCRIPTS' are copied in one `install' (or `libtool --mode=install')
669 invocation if they do not have to be renamed.
671 Both install and uninstall may sometimes enter (`cd' into) the target
672 installation directory now, when no build-local scripts are used.
674 Both install and uninstall do not fail anymore but do nothing if an
675 installation directory variable like `bindir' is set to the empty string.
677 For built-in rules, `make install' now fails reliably if installation
678 of a file failed. Conversely, `make uninstall' even succeeds when
679 issued multiple times.
681 These changes may need some adjustments from users: For example,
682 some `install' programs refuse to install multiple copies of the
683 same file in one invocation, so you may need to remove duplicate
684 entries from file lists.
686 Also, within one set of files, say, nobase_data_DATA, the order of
687 installation may be changed, or even unstable among different hosts,
688 due to the use of associative arrays in awk. The increased use of
689 awk matches a similar move in Autoconf to provide for better scaling.
691 Further, most undocumented per-rule install command variables such as
692 binSCRIPT_INSTALL have been removed because they are not needed any
693 more. Packages which use them should be using the appropriate one of
694 INSTALL_{DATA,PROGRAM,SCRIPT} or their install_sh_{DATA,PROGRAM,SCRIPT}
695 counterpart, depending on the type of files and the need for automatic
696 target directory creation.
698 - The "deleted header file problem" for *.m4 files is avoided by
699 stub rules. This allows `make' to trigger a rerun of `aclocal'
700 also if some previously needed macro file has been removed.
702 - Rebuild rules now also work for a removed `subdir/Makefile.in' in
703 an otherwise up to date tree.
705 - The `color-tests' option causes colored test result output on terminals.
707 - The `parallel-tests' option enables a new test driver that allows for
708 parallel test execution, inter-test dependencies, lazy test execution
709 for unit-testing, re-testing only failed tests, and formatted result output
710 as RST (reStructuredText) and HTML. Enabling this option may require some
711 changes to your test suite setup; see the manual for details.
713 - The `silent-rules' option enables Linux kernel-style silent build output.
714 This option requires the widely supported but non-POSIX `make' feature
715 of recursive variable expansion, so do not use it if your package needs
716 to build with `make' implementations that do not support it.
718 To enable less verbose build output, the developer has to use the Automake
719 option `silent-rules' in `AM_INIT_AUTOMAKE', or call the `AM_SILENT_RULES'
720 macro. The user may then set the default verbosity by passing the
721 `--enable-silent-rules' option to `configure'. At `make' run time, this
722 default may be overridden using `make V=0' for less verbose, and `make V=1'
723 for backward-compatible verbose output.
725 - New prefix `notrans_' for manpages which should not be transformed
726 by --program-transform.
728 - New macro AM_COND_IF for conditional evaluation and conditional
731 - For AC_CONFIG_LINKS, if source and destination are equal, do not
732 remove the file in a non-VPATH build. Such setups work with Autoconf
735 - AM_MAINTAINER_MODE now allows for an optional argument specifying
738 - AM_SUBST_NOTMAKE may prevent substitution of AC_SUBSTed variables,
739 useful especially for multi-line values.
741 - Automake's early configure-time sanity check now diagnoses an
742 unsafe absolute source directory name and makes configure fail.
744 - The Automake macros and rules cope better with whitespace in the
745 current directory name, as long as the relative path to `configure'
746 does not contain whitespace. To this end, the values of `$(MISSING)'
747 and `$(install_sh)' may contain suitable quoting, and their expansion
748 might need `eval'uation if used outside of a makefile. These
749 undocumented variables may be used in several documented macros such
750 as $(AUTOCONF) or $(MAKEINFO).
754 * Long-standing bugs:
756 - Fix aix dependency tracking for libtool objects.
758 - Work around AIX sh quoting issue in AC_PROG_CC_C_O, leading to
759 unnecessary use of the `compile' script.
761 - For nobase_*_LTLIBRARIES with nonempty directory components, the
762 correct `-rpath' argument is used now.
764 - `config.status --file=Makefile depfiles' now also works with the
765 extra quoting used internally by Autoconf 2.62 and newer
766 (it used to work only without the `--file=' bit).
768 - The `missing' script works better with versioned tool names.
770 - Semantics for `missing help2man' have been revamped:
772 Previously, if `help2man' was not present, `missing help2man' would have
773 the following semantics: if some man page was out of date but present, then
774 a warning would be printed, but the exit status was 0. If the man page was
775 not present at all, then `missing' would create a replacement man page
776 containing an error message, and exit with a status of 2. This does not play
777 well with `make': the next run will see this particular man page as being up
778 to date, and will only error out on the next generated man page, if any;
779 repeat until all pages are done. This was not desirable.
781 These are the new semantics: if some man page is not present, and help2man
782 is not either, then `missing' will warn and generate the replacement page
783 containing the error message, but exit successfully. However, `make dist'
784 will ensure that no such bogus man pages are packaged into a tarball.
786 - Targets provided by automake behave better with `make -n', in that they
787 take care not to create files.
789 - `config.status Makefile... depfiles' works fine again in the presence of
790 disabled dependency tracking.
792 - The default no-op recursive rules for these targets also work with BSD make
793 now: html, install-html, install-dvi, install-pdf, install-pdf, install-info.
795 - `make distcheck' works also when both a directory and some file below it
796 have been added to a distribution variable, such as EXTRA_DIST or *_SOURCES.
798 - Texinfo dvi, ps, pdf, and html output files are not removed upon
799 `make mostlyclean' any more; only the LaTeX by-products are.
801 - Renamed objects also work with the `subdir-objects' option and
802 source file languages which Automake does not know itself.
804 - `automake' now correctly complains about variable assignments which are
805 preceded by a comment, extend over multiple lines with backslash-escaped
806 newlines, and end in a comment sign. Previous versions would silently
807 and wrongly ignore such assignments completely.
809 * Bugs introduced by 1.10:
811 - Fix output of dummy dependency files in presence of post-processed
812 Makefile.in's again, but also cope with long lines.
814 - $(EXEEXT) is automatically appended to filenames of XFAIL_TESTS
815 that have been declared as programs in the same Makefile.
816 This is for consistency with the analogous change to TESTS in 1.10.
818 - Fix order of standard includes to again be `-I. -I$(srcdir)',
819 followed by directories containing config headers.
821 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
825 * Version requirements:
827 - Autoconf 2.60 or greater is required.
829 - Perl 5.6 or greater is required.
831 * Changes to aclocal:
833 - aclocal now also supports -Wmumble and -Wno-mumble options.
835 - `dirlist' entries (for the aclocal search path) may use shell
836 wildcards such as `*', `?', or `[...]'.
838 - aclocal supports an --install option that will cause system-wide
839 third-party macros to be installed in the local directory
840 specified with the first -I flag. This option also uses #serial
841 lines in M4 files to upgrade local macros.
843 The new aclocal options --dry-run and --diff help to review changes
844 before they are installed.
846 - aclocal now outputs an autoconf version check in aclocal.m4 in
847 projects using automake.
849 For a few years, automake and aclocal have been calling autoconf
850 (or its underlying engine autom4te) to accurately retrieve the
851 data they need from configure.ac and its siblings. Doing so can
852 only work if all autotools use the same version of autoconf. For
853 instance a Makefile.in generated by automake for one version of
854 autoconf may stop working if configure is regenerated with another
855 version of autoconf, and vice versa.
857 This new version check ensures that the whole build system has
858 been generated using the same autoconf version.
860 * Support for new Autoconf macros:
862 - The new AC_REQUIRE_AUX_FILE Autoconf macro is supported.
864 - If `subdir-objects' is set, and AC_CONFIG_LIBOBJ_DIR is specified,
865 $(LIBOBJS), $(LTLIBOBJS), $(ALLOCA), and $(LTALLOCA) can be used
866 in different directories. However, only one instance of such a
867 library objects directory is supported.
869 * Change to Libtool support:
871 - Libtool generic flags (those that go before the --mode=MODE option)
872 can be specified using AM_LIBTOOLFLAGS and target_LIBTOOLFLAGS.
874 * Yacc and Lex changes:
876 - The rebuild rules for distributed Yacc and Lex output will avoid
877 overwriting existing files if AM_MAINTAINER_MODE and maintainer-mode
880 - ylwrap is now always used for lex and yacc source files,
881 regardless of whether there is more than one source per directory.
885 - Preprocessed assembler (*.S) compilation now honors CPPFLAGS,
886 AM_CPPFLAGS and per-target _CPPFLAGS, and supports dependency
887 tracking, unlike non-preprocessed assembler (*.s).
889 - subdir-object mode works now with Assembler. Automake assumes
890 that the compiler understands `-c -o'.
892 - Preprocessed assembler (*.S) compilation now also honors
893 $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES).
895 - Improved support for Objective C:
896 - Autoconf's new AC_PROG_OBJC will enable automatic dependency tracking.
897 - A new section of the manual documents the support.
899 - New support for Unified Parallel C:
900 - AM_PROG_UPC looks for a UPC compiler.
901 - A new section of the manual documents the support.
903 - Per-target flags are now correctly handled in link rules.
905 For instance maude_CFLAGS correctly overrides AM_CFLAGS; likewise
906 for maude_LDFLAGS and AM_LDFLAGS. Previous versions bogusly
907 preferred AM_CFLAGS over maude_CFLAGS while linking, and they
908 used both AM_LDFLAGS and maude_LDFLAGS on the same link command.
910 The fix for compiler flags (i.e., using maude_CFLAGS instead of
911 AM_CFLAGS) should not hurt any package since that is how _CFLAGS
912 is expected to work (and actually works during compilation).
914 However using maude_LDFLAGS "instead of" AM_LDFLAGS rather than
915 "in addition to" breaks backward compatibility with older versions.
916 If your package used both variables, as in
918 AM_LDFLAGS = common flags
920 a_LDFLAGS = more flags
923 and assumed *_LDFLAGS would sum up, you should rewrite it as
925 AM_LDFLAGS = common flags
927 a_LDFLAGS = $(AM_LDFLAGS) more flags
930 This new behavior of *_LDFLAGS is more coherent with other
931 per-target variables, and the way *_LDFLAGS variables were
932 considered internally.
934 * New installation targets:
936 - New targets mandated by GNU Coding Standards:
941 By default they will only install Texinfo manuals.
942 You can customize them with *-local variants:
948 - The undocumented recursive target `uninstall-info' no longer exists.
949 (`uninstall' is in charge of removing all possible documentation
950 flavors, including optional formats such as dvi, ps, or info even
951 when `no-installinfo' is used.)
953 * Miscellaneous changes:
955 - Automake no longer complains if input files for AC_CONFIG_FILES
956 are specified using shell variables.
958 - clean, distribution, or rebuild rules are normally disabled for
959 inputs and outputs of AC_CONFIG_FILES, AC_CONFIG_HEADERS, and
960 AC_CONFIG_LINK specified using shell variables. However, if these
961 variables are used as ${VAR}, and AC_SUBSTed, then Automake will
962 be able to output rules anyway.
963 (See the Automake documentation for AC_CONFIG_FILES.)
965 - $(EXEEXT) is automatically appended to filenames of TESTS
966 that have been declared as programs in the same Makefile.
967 This is mostly useful when some check_PROGRAMS are listed in TESTS.
969 - `-Wportability' has finally been turned on by default for `gnu' and
970 `gnits' strictness. This means, automake will complain about %-rules
971 or $(GNU Make functions) unless you switch to `foreign' strictness or
972 use `-Wno-portability'.
974 - Automake now uses AC_PROG_MKDIR_P (new in Autoconf 2.60), and uses
975 $(MKDIR_P) instead of $(mkdir_p) to create directories. The
976 $(mkdir_p) variable is still defined (to the same value as
977 $(MKDIR_P)) but should be considered obsolete. If you are using
978 $(mkdir_p) in some of your rules, please plan to update them to
979 $(MKDIR_P) at some point.
981 - AM_C_PROTOTYPES and ansi2knr are now documented as being obsolete.
982 They still work in this release, but may be withdrawn in a future one.
984 - Inline compilation rules for gcc3-style dependency tracking are
987 - Automake installs a "Hello World!" example package in $(docdir).
988 This example is used throughout the new "Autotools Introduction"
989 chapter of the manual.
991 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
995 * Makefile.in bloat reduction:
997 - Inference rules are used to compile sources in subdirectories when
998 the `subdir-objects' option is used and no per-target flags are
999 used. This should reduce the size of some projects a lot, because
1000 Automake used to output an explicit rule for each such object in
1003 - Automake no longer outputs three rules (.o, .obj, .lo) for each
1004 object that must be built with explicit rules. It just outputs
1005 the rules required to build the kind of object considered: either
1006 the two .o and .obj rules for usual objects, or the .lo rule for
1009 * Change to Libtool support:
1011 - Libtool tags are used with libtool versions that support them.
1012 (I.e., with Libtool 1.5 or greater.)
1014 - Automake is now able to handle setups where a libtool library is
1015 conditionally installed in different directories, as in
1018 lib_LTLIBRARIES = liba.la
1020 pkglib_LTLIBRARIES = liba.la
1022 liba_la_SOURCES = ...
1024 * Changes to aclocal:
1026 - aclocal now ensures that AC_DEFUNs and AU_DEFUNs it discovers are
1027 really evaluated, before it decides to include them in aclocal.m4.
1028 This solves nasty problems with conditional redefinitions of
1029 Autoconf macros in /usr/share/aclocal/*.m4 files causing extraneous
1030 *.m4 files to be included in any project using these macros.
1031 (Calls to AC_PROG_EGREP causing libtool.m4 to be included is the
1032 most famous instance of this bug.)
1034 - Do not complain about missing conditionally AC_REQUIREd macros
1035 that are not actually used. In 1.8.x aclocal would correctly
1036 determine which of these macros were really needed (and include
1037 only these in the package); unfortunately it would also require
1038 all of them to be present in order to run. This created
1039 situations were aclocal would not work on a tarball distributing
1040 all the macros it uses. For instance running aclocal on a project
1041 containing only the subset of the Gettext macros in use by the
1042 project did not work, because gettext conditionally requires other
1045 * Portability improvements:
1047 - Tar format can be chosen with the new options tar-v7, tar-ustar, and
1048 tar-pax. The new option filename-length-max=99 helps diagnosing
1049 filenames that are too long for tar-v7. (PR/414)
1051 - Variables aumented with `+=' are now automatically flattened (i.e.,
1052 trailing backslashes removed) and then wrapped around 80 colummns
1053 (adding trailing backslashes). In previous versions, a long series
1059 would result in a single-line definition of VAR that could possibly
1060 exceed the maximum line length of some make implementations.
1062 Non-augmented variables are still output as they are defined in
1067 - Support Fortran 90/95 with the new "fc" and "ppfc" languages.
1068 Works the same as the old Fortran 77 implementation; just replace
1069 F77 with FC everywhere (exception: FFLAGS becomes FCFLAGS).
1070 Requires a version of autoconf which provides AC_PROG_FC (>=2.59).
1072 - Support for conditional _LISP.
1074 - Support for conditional -hook and -local rules (PR/428).
1076 - Diagnose AC_CONFIG_AUX_DIR calls following AM_INIT_AUTOMAKE. (PR/49)
1078 - Automake will not write any Makefile.ins after the first error it
1079 encounters. The previous Makefile.ins (if any) will be left in
1080 place. (Warnings will not prevent output, but remember they can
1081 be turned into errors with -Werror.)
1083 - The restriction that SUBDIRS must contain direct children is gone.
1086 - The manual tells more about SUBDIRS vs. DIST_SUBDIRS.
1087 It also gives an example of nested packages using AC_CONFIG_SUBDIRS.
1089 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1091 Bugs fixed in 1.8.5:
1093 * Long-standing bugs:
1095 - Define DIST_SUBDIRS even when the `no-dist' or `cygnus' options are used
1096 so that `make distclean' and `make maintainer-clean' can work.
1098 - Define AR and ARFLAGS even when only EXTRA_LIBRARIES are defined.
1100 - Fix many rules to please FreeBSD make, which runs commands with `sh -e'.
1102 - Polish diagnostic when no input file is found.
1104 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1106 Bugs fixed in 1.8.4:
1108 * Long-standing bugs:
1110 - Fix AM_PATH_PYTHON to correctly display $PYTHON when it has been
1111 overridden by the user.
1113 - Honor PATH_SEPARATOR in various places of the Automake package, for
1116 - Adjust dependency tracking mode detection to ICC 8.0's new output.
1119 - Fix install-sh so it can install the `mv' binary... using `mv'.
1121 - Fix tru64 dependency tracking for libtool objects.
1123 - Work around Exuberant Ctags when creating a TAGS files in a directory
1124 without files to scan but with subdirectories to include.
1126 * Bugs introduced by 1.8:
1128 - Fix an "internal error" when @LIBOBJS@ is used in a variable that is
1129 not defined in the same conditions as the _LDADD that uses it.
1131 - Do not warn when JAVAROOT is overridden, this is legitimate.
1133 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1135 Bugs fixed in 1.8.3:
1137 * Long-standing bugs:
1139 - Quote filenames in installation rules, in case $DESTDIR, $prefix,
1140 or any of the other *dir variables contain a space.
1142 Please note that Automake does not and cannot support spaces in
1143 filenames that are involved during the build. This change affects
1144 only installation paths, so that `make install' does not bomb out
1145 in packages configured with
1146 ./configure --prefix '/c/Program Files'
1148 - Fix the depfiles output so it works with GNU sed (<4.1) even when
1149 POSIXLY_CORRECT is set.
1151 - Do not AC_SUBST(LIBOBJS) in AM_WITH_REGEX. This macro was unusable
1152 since Autoconf 2.54, which defines LIBOBJS itself.
1154 - Fix a potential (but unlikely) race condition in parallel elisp
1155 builds. (Introduced in 1.7.3.)
1157 - Do not assume that users override _DEPENDENCIES in all conditions
1158 where Automake will try to define them.
1160 - Do not use `mkdir -p' in mkinstalldirs, unless this is GNU mkdir.
1161 Solaris 8's `mkdir -p' is not thread-safe and can break parallel
1164 This fix also affects the $(mkdir_p) variable defined since
1165 Automake 1.8. It will be set to `mkdir -p' only if mkdir is GNU
1166 mkdir, and to `mkinstalldirs' or `install-sh -d' otherwise.
1168 - Secure temporary directory creation in `make distcheck'. (PR/413)
1170 - Do not generate two build rules for `parser.h' when the
1171 parser appears in two different conditionals.
1173 - Work around a Solaris 8 /bin/sh bug in the test for dependency
1174 checking. Usually ./configure will not pick this shell; so this
1175 fix only helps cases where the shell is forced to /bin/sh.
1177 * Bugs introduced by 1.8:
1179 - In some situations (hand-written `m4_include's), aclocal would
1180 call the `File::Spec->rel2abs' method, which was only introduced
1181 in Perl 5.6. This new version reestablish support Perl 5.005.
1183 It is likely that the next major Automake releases will require at
1184 least Perl 5.6. Consider upgrading your development environment
1185 if you are still using the five-year-old Perl 5.005.
1187 - Automake would sometimes fail to define rules for targets listed
1188 in variables defined in multiple conditions. For instance on
1194 it would define only the `a.$(OBJEXT): a.c' rule and omit the
1195 `b.$(OBJEXT): b.c' rule.
1197 * New sections in manual:
1199 - Third-Party Makefiles: how to interface third party Makefiles.
1200 - Upgrading: upgrading packages to newer Automake versions.
1201 - Multiple Outputs: handling tools that produce many outputs.
1203 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1207 * A (well known) portability bug slipped in the changes made to
1208 install-sh in Automake 1.8.1. The broken install-sh would refuse to
1209 install anything on Tru64.
1211 * Fix install rules for conditionally built python files. (This never
1214 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1218 * Bugs introduced by 1.8:
1220 - Fix Config.pm import error with old Perl versions (at least
1221 5.005_03). One symptom is that aclocal could not find its macro
1224 - Automake 1.8 used `mkdir -m 0755 -p --' to ensure that directories
1225 created by `make install' are always world readable, even if the
1226 installer happens to have an overly restrictive umask (e.g. 077).
1227 This was a mistake and has been reverted. There are at least two
1228 reasons why we must not use `-m 0755':
1229 - it causes special bits like SGID to be ignored,
1230 - it may be too restrictive (some setups expect 775 directories).
1232 - Fix aclocal to honor definitions located in files which have been
1233 m4_included manually. aclocal 1.8 had been updated to check
1234 m4_included files for new requirements, but forgot that these
1235 m4_included files can also provide new definitions.
1237 Note that if you have such a setup, we recommend you get rid of
1238 it. In the past, there was a reason to m4_include files manually:
1239 aclocal used to duplicate entire M4 files into aclocal.m4, even
1240 files that were distributed. Some packages were therefore
1241 m4_including the distributed file directly, and playing some
1242 tricks to ensure aclocal would not copy that file to aclocal.m4,
1243 in order to limit the amount of duplication. Since aclocal 1.8.x
1244 will precisely output m4_includes for local M4 files, we recommend
1245 that you clean up your setup, removing all manual m4_includes and
1246 letting aclocal output them.
1248 - Output detailed menus in the Info version if the Automake manual,
1249 so that Emacs can locate the indexes.
1251 - configure.ac and configure were listed twice in DIST_COMMON (an
1252 internal variable where Automake lists configury files to
1253 distribute). This was harmless, but unaesthetic.
1255 - Use `chmod a-w' instead of `chmod -w' as the latter honors umask.
1256 This was an issue only in the Automake package itself, not in
1259 - Automake assumed that all AC_CONFIG_LINKS arguments had the form
1260 DEST:SRC. This was wrong, as some packages do
1261 AC_CONFIG_LINKS($computedlinks). This version no longer abort in
1264 - Contrary to mkinstalldirs, $(mkdir_p) was expecting exactly one
1265 argument. This caused two kinds of failures:
1266 - Rules installing data in a conditionally defined directory
1267 failed when that directory was undefined. In this case no
1268 argument was supplied.
1269 - `make installdirs' failed, because several directories were
1270 passed to $(mkdir_p). This was an issue only on platform
1271 were $(mkdir_p) is implemented with `install-sh -d'.
1272 $(mkdir_p) as been changed to accept 0 or more arguments, as
1275 * Long-standing bugs:
1277 - Fix an unexpected diagnostic occurring when users attempt
1278 to override some internal variables that Automake appends to.
1280 - aclocal now scans configure.ac for macro definitions (PR/319).
1282 - Fix a portability issue with OSF1/Tru64 Make. If a directory
1283 distributes files which are outside itself (this usually occurs
1284 when using AC_CONFIG_AUX_DIR([../dir]) to use auxiliary files
1285 from a parent package), then `make distcheck' fails due to an
1286 optimization performed by OSF1/Tru64 Make in its VPATH handling.
1287 (tests/subpkg2.test failure)
1289 - Fix another portability issue with Sun and OSF1/Tru64 Make.
1290 In a VPATH-build configuration, `make install' would install
1291 nobase_ files to wrong locations.
1293 - Fix a Perl `uninitialized value' diagnostic occurring when
1294 automake complains that a Texinfo file does not have a
1295 @setfilename statement.
1297 - Erase config.status.lineno during `make distclean'. This file
1298 can be created by config.status. Automake already knew about
1299 configure.lineno, but forgot config.status.lineno.
1301 - Distribute all files, even those which are built and installed
1302 conditionally. This change affects files listed in conditionally
1303 defined *_HEADERS and *_PYTHON variable (unless they are nodist_*)
1304 as well as those listed in conditionally defined dist_*_DATA,
1305 dist_*_JAVA, dist_*_LISP, and dist_*_SCRIPTS variables.
1307 - Fix AM_PATH_LISPDIR to avoid \? in sed regular expressions; it
1308 doesn't conform to POSIX.
1310 - Normalize help strings for configure variables and options added
1315 - Check for python2.4 in AM_PATH_PYTHON.
1317 * Spurious failures in test suite:
1319 - tests/libtool5.test, tests/ltcond.test, tests/ltcond2.test,
1320 tests/ltconv.test: fix failures with CVS Libtool.
1321 - tests/aclocal6.test: fix failure if autom4te.cache is disabled.
1322 - tests/txinfo24.test, tests/txinfo25.test, tests/txinfo28.test:
1323 fix failures with old Texinfo versions.
1325 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1331 - The NEWS file is more verbose.
1335 - Autoconf 2.58 or greater is required.
1339 - Default source file names in the absence of a _SOURCES declaration
1340 are made by removing any target extension before appending `.c', so
1341 to make the libtool module `foo.la' from `foo.c', you only need to
1344 lib_LTLIBRARIES = foo.la
1345 foo_la_LDFLAGS = -module
1347 For backward compatibility, foo_la.c will be used instead of
1348 foo.c if this file exists or is the explicit target of a rule.
1349 However -Wobsolete will warn about this deprecated naming.
1351 - AR's `cru' flags are now set in a global ARFLAGS variable instead
1352 of being hard-coded in each $(AR) invocation, so they can be
1353 substituted from configure.ac. This has been requested by people
1354 dealing with non-POSIX ar implementations.
1356 - New warning option: -Woverride. This will warn about any user
1357 target or variable definitions which override Automake
1360 - Texinfo rules back up and restore info files when makeinfo fails.
1362 - Texinfo rules now support the `html' target.
1363 Running this requires Texinfo 4.0 or greater.
1365 `html' is a new recursive target, so if your package mixes
1366 hand-crafted `Makefile.in's with Automake-generated
1367 `Makefile.in's, you should adjust the former to support (or
1368 ignore) this target so that `make html' recurses successfully. If
1369 you had a custom `html' rule in your `Makefile.am', it's better to
1370 rename it as `html-local', otherwise your rule will override
1371 Automake's new rule (you can check that by running `automake
1372 -Woverride') and that will stop the recursion to subdirectories.
1374 Last but not least, this `html' rule is declared PHONY, even when
1375 overridden. Fortunately, it appears that few packages use a
1376 non-PHONY `html' rule.
1378 - Any file which is m4_included from configure.ac will appear as a
1379 configure and Makefile.in dependency, and will be automatically
1382 - The rules for rebuilding Makefiles and Makefile.ins will now
1383 rebuild all Makefiles and all Makefile.ins at once when one of
1384 configure's dependencies has changed. This is considerably faster
1385 than previous implementations, where config.status and automake
1386 were run separately in each directory (this still happens when you
1387 change a Makefile.am locally, without touching configure.ac or
1388 friends). Doing this also solves a longstanding issue: these
1389 rebuild rules failed to work when adding new directories to the
1390 tree, forcing you to run automake manually.
1392 - For similar reasons, the rules to rebuild configure,
1393 config.status, and aclocal.m4 are now defined in all directories.
1394 Note that if you were using the CONFIG_STATUS_DEPENDENCIES and
1395 CONFIGURE_DEPENDENCIES (formerly undocumented) variables, you
1396 should better define them in all directories. This is easily done
1397 using an AC_SUBST (make sure you prefix these dependencies with
1398 $(top_srcdir) since this variable will appear at different
1399 levels of the build tree).
1401 - aclocal will now use `m4_include' instead of copying local m4
1402 files into aclocal.m4. (Local m4 files are those you ship with
1403 your project, other files will be copied as usual.)
1405 Because m4_included files are automatically distributed, it means
1406 for most projects there is no point in EXTRA_DISTing the list of
1407 m4 files which are used. (You can probably get rid of
1408 m4/Makefile.am if you had one.)
1410 - aclocal will avoid touching aclocal.m4 when possible, so that
1411 Autom4te's cache isn't needlessly invalidated. This behavior can
1412 be switched off with the new `--force' option.
1414 - aclocal now uses Autoconf's --trace to detect macros which are
1415 actually used and will no longer include unused macros simply
1416 because they where mentioned. This was often the case for macros
1417 called conditionally.
1419 - New options no-dist and no-dist-gzip.
1421 - compile, depcomp, elisp-comp, install-sh, mdate-sh, mkinstalldirs,
1422 py-compile, and ylwrap, now all understand --version and --help.
1424 - Automake will now recognize AC_CONFIG_LINKS so far as removing created
1425 links as part of the distclean target and including source files in
1428 - AM_PATH_PYTHON now supports ACTION-IF-FOUND and ACTION-IF-NOT-FOUND
1429 argument. The latter can be used to override the default behavior
1430 (which is to abort).
1432 - Automake will exit with $? = 63 on version mismatch. (So does
1433 Autoconf 2.58) missing knows this, and in this case it will
1434 emulate the tools as if they were absent. Because older versions
1435 of Automake and Autoconf did not use this exit code, this change
1436 will only be useful in projects generated with future versions of
1439 - When using AC_CONFIG_FILES with multiple input files, Automake
1440 generates the first ".in" input file for which a ".am" exists.
1441 (Former versions would try to use only the first input file.)
1443 - lisp_DATA is now allowed. If you are using the empty ELCFILES
1444 idiom to disable byte-compilation of lisp_LISP files, it is
1445 recommended that you switch to using lisp_DATA. Note that
1446 this is not strictly equivalent: lisp_DATA will install elisp
1447 files even if emacs is not installed, while *_LISP do not
1448 install anything unless emacs is found.
1450 - Makefiles will prefer `mkdir -p' over mkinstalldirs if it is
1451 available. This selection is achieved through the Makefile
1452 variable $(mkdir_p) that is set by AM_INIT_AUTOMAKE to either
1453 `mkdir -m 0755 -p --', `$(mkinstalldirs) -m 0755', or
1454 `$(install_sh) -m 0755 -d'.
1458 - Because `mkdir -p' is available on most platforms, and we can use
1459 `install-sh -d' when it is not, the use of the mkinstalldirs
1460 script is being phased out. `automake --add-missing' no longer
1461 installs it, and if you remove mkinstalldirs from your package,
1462 automake will define $(mkinstalldirs) as an alias for $(mkdir_p).
1464 Gettext 0.12.1 still requires mkinstalldirs. Fortunately
1465 gettextize and autopoint will install it when needed. Automake
1466 will continue to define the $(mkinstalldirs) and to distribute
1467 mkinstalldirs when this script is in the source tree.
1469 - AM_PROG_CC_STDC is now empty. The content of this macro was
1470 merged in AC_PROG_CC. If your code uses $am_cv_prog_cc_stdc, you
1471 should adjust it to use $ac_cv_prog_cc_stdc instead. (This
1472 renaming should be safe, even if you have to support several,
1473 versions of Automake, because AC_PROG_CC defines this variable
1474 since Autoconf 2.54.)
1476 - Some users where using the undocumented ACLOCAL_M4_SOURCES
1477 variable to override the aclocal.m4 dependencies computed
1478 (inaccurately) by older versions of Automake. Because Automake
1479 now tracks configure's m4 dependencies accurately (see m4_include
1480 above), the use of ACLOCAL_M4_SOURCES should be considered
1481 obsolete and will be flagged as such when running `automake
1486 - Defining programs conditionally using Automake conditionals no
1487 longer leads to a combinatorial explosion. The following
1488 construct used to be troublesome when used with dozens of
1503 Likewise for _SOURCES, _LDADD, and _LIBADD variables.
1505 - Due to implementation constraints, previous versions of Automake
1506 proscribed multiple conditional definitions of some variables
1516 All _PROGRAMS, _LDADD, and _LIBADD variables were affected.
1517 This restriction has been lifted, and these variables now
1518 support multiple conditional definitions as do other variables.
1520 - Cleanup the definitions of $(distdir) and $(top_distdir).
1521 $(top_distdir) now points to the root of the distribution
1522 directory created during `make dist', as it did in Automake 1.4,
1523 not to the root of the build tree as it did in intervening
1524 versions. Furthermore these two variables are now only defined in
1525 the top level Makefile, and passed to sub-directories when running
1528 - The --no-force option now correctly checks the Makefile.in's
1529 dependencies before deciding not to update it.
1531 - Do not assume that make files are called Makefile in cleaning rules.
1533 - Update .info files in the source tree, not in the build tree. This
1534 is what the GNU Coding Standard recommend. Only Automake 1.7.x
1535 used to update these files in the build tree (previous versions did
1536 it in the source tree too), and it caused several problems, varying
1537 from mere annoyance to portability issues.
1539 - COPYING, COPYING.LIB, and COPYING.LESSER are no longer overwritten
1540 when --add-missing and --force-missing are used. For backward
1541 compatibility --add-missing will continue to install COPYING (in
1542 `gnu' strictness) when none of these three files exist, but this
1543 use is deprecated: you should better choose a license yourself and
1544 install it once for all in your source tree (and in your code
1547 - Fix ylwrap so that it does not overwrite header files that haven't
1548 changed, as the inline rule already does.
1550 - User-defined rules override automake-defined rules for the same
1551 targets, even when rules do not have commands. This is not new
1552 (and was documented), however some of the automake-generated
1553 rules have escaped this principle in former Automake versions.
1554 Rules for the following targets are affected by this fix:
1556 clean, clean-am, dist-all, distclean, distclean-am, dvi, dvi-am,
1557 info, info-am, install-data-am, install-exec-am, install-info,
1558 install-info-am, install-man, installcheck-am, maintainer-clean,
1559 maintainer-clean-am, mostlyclean, mostlyclean-am, pdf, pdf-am,
1560 ps, ps-am, uninstall-am, uninstall-info, uninstall-man
1562 Practically it means that an attempt to supplement the dependencies
1563 of some target, as in
1565 clean: my-clean-rule
1567 will now *silently override* the automake definition of the
1568 rule for this target. Running `automake -Woverride' will diagnose
1569 all such overriding definitions.
1571 It should be noted that almost all these targets support a *-local
1572 variant that is meant to supplement the automake-defined rule
1573 (See node `Extending' in the manual). The above rule should
1576 clean-local: my-clean-rule
1578 These *-local targets have been documented since at least
1579 Automake 1.2, so you should not fear the change if you have
1580 to support multiple automake versions.
1584 - The Automake manual is now distributed under the terms of the GNU FDL.
1586 - Targets dist-gzip, dist-bzip2, dist-tarZ, dist-zip are always defined.
1588 - core dumps are no longer removed by the cleaning rules. There are
1589 at least three reasons for this:
1590 1. These files should not be created by any build step,
1591 so their removal do not fit any of the cleaning rules.
1592 Actually, they may be precious to the developer.
1593 2. If such file is created during a build, then it's clearly a
1594 bug Automake should not hide. Not removing the file will
1595 cause `make distcheck' to complain about its presence.
1596 3. Operating systems have different naming conventions for
1597 core dump files. A core file on one system might be a
1598 completely legitimate data file on another system.
1600 - RUNTESTFLAGS, CTAGSFLAGS, ETAGSFLAGS, JAVACFLAGS are no longer
1601 defined by Automake. This means that any definition in the
1602 environment will be used, unless overridden in the Makefile.am or
1603 on the command line. The old behavior, where these variables were
1604 defined empty in each Makefile, can be obtained by AC_SUBSTing or
1605 AC_ARG_VARing each variable from configure.ac.
1607 - CONFIGURE_DEPENDENCIES and CONFIG_STATUS_DEPENDENCIES are now
1608 documented. (The is not a new feature, these variables have
1609 been there since at least Automake 1.4.)
1611 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1613 Bugs fixed in 1.7.9:
1614 * Fix install-strip to work with nobase_ binaries.
1615 * Fix renaming of #line directives in ylwrap.
1616 * Rebuild with Autoconf 2.59. (1.7.8 was not installable with pdksh.)
1618 Bugs fixed in 1.7.8:
1619 * Remove spurious blank lines in cleaning rules introduced in 1.7.7.
1620 * Fix detection of Debian's install-info, broken since version 1.5.
1621 (Debian bug #213524).
1622 * Honor -module if it appears in AM_LDFLAGS (i.e., relax name checking)
1623 This was only done for libfoo_LDFLAGS and LDFLAGS in previous versions.
1625 Bugs fixed in 1.7.7:
1626 * The implementation of automake's --no-force option is unreliable,
1627 so this option is ignored in this version. A real fix will appear in
1628 Automake 1.8. (Debian Bug #206299)
1629 * AM_PATH_PYTHON: really check the whole list of interpreters if no
1630 argument is given. (PR/399)
1631 * Do not warn about leading `_' in variable names, even with -Wportability.
1632 * Support user redefinitions of TEXINFO_TEX.
1633 * depcomp: support AIX Compiler version 6.
1634 * Fix missing rebuilds during `make dist' with BSD make.
1635 (Could produce tarballs containing out-of-date files.)
1636 * Resurrect multilib support.
1637 * Noteworthy manual updates:
1638 - Extending aclocal: how to write m4 macros that won't trigger warnings
1640 - A Shared Library: Rewrite and split into subsections.
1642 Bugs fixed in 1.7.6:
1643 * Fix depcomp's icc mode for ICC 7.1.
1644 * Diagnose calls to AC_CONFIG_FILES and friends with not enough arguments.
1645 * Fix maintainer-clean's removal of autom4te.cache in VPATH builds.
1646 * Fix AM_PATH_LISPDIR to work with POSIXLY_CORRECT=1.
1647 * Fix the location reported in some diagnostics related to AUTOMAKE_OPTIONS.
1648 * Remove Latin-1 characters from elisp-comp.
1649 * Update the manual's @dircategory to match the Free Software Directory.
1651 Bugs fixed in 1.7.5:
1652 * Update install-sh's license to remove an advertising clause.
1653 (Debian bug #191717)
1654 * Fix a bug introduced in 1.7.4, related to BUILT_SOURCE handling,
1655 that caused invalid Makefile.ins to be generated.
1656 * Make sure AM_MAKE_INCLUDE doesn't fail when a `doit' file exists.
1657 * New FAQ entry: renamed objects.
1659 Bugs fixed in 1.7.4:
1660 * Tweak the TAGS rule to support Exuberant Ctags (in addition to
1661 the Emacs implementation)
1662 * Fix output of aclocal.m4 dependencies in subdirectories.
1663 * Use `mv -f' instead of `mv' in fastdep rules.
1664 * Upgrade mdate-sh to work on OS/2.
1665 * Don't byte-compile elisp files when ELCFILES is set empty.
1666 (this documented feature was broken by 1.7.3)
1667 * Diagnose trailing backslashes on last line of Makefile.am.
1668 * Diagnose whitespace following trailing backslashes.
1669 * Multiple tests are now correctly supported in DEJATOOL. (PR/388)
1670 * Fix rebuilt rules for AC_CONFIG_FILES([Makefile:Makefile.in:Makefile.bot])
1672 * `make install' will build `BUILT_SOURCES' first.
1673 * Minor documentation fixes.
1675 Bugs fixed in 1.7.3:
1676 * Fix stamp files numbering (when using multiple AC_CONFIG_HEADERS).
1677 * Query distutils for `pythondir' and `pythonexecdir', instead of
1678 using an hardcoded path. This should allow builds on 64-bit
1679 distributions that usually use lib64/ instead of lib/.
1680 * AM_PATH_PYTHON will also search for python2.3.
1681 * elisp files are now built all at once instead of one by one. Besides
1682 incurring a speed-up, this is required to support interdependent elisp files.
1683 * Support for DJGPP:
1684 - `make distcheck' will now work in `_inst/' and `_build' instead
1685 of `=inst/' and `=build/'
1686 - use `_dirstamp' when the file-system doesn't support `.dirstamp'
1687 - install/uninstall `*.i[0-9][0-9]'-style info files
1688 - more changes that affect only the Automake package (not its output)
1689 * Fix some incompatibilities with upcoming perl-5.10.
1690 * Properly quote AC_PACKAGE_TARNAME and AC_PACKAGE_VERSION when defining
1691 PACKAGE and VERSION.
1693 - dashmstdout and dashXmstdout modes: don't use `-o /dev/null', this
1694 is troublesome with gcc and Solaris compilers. (PR/385)
1695 - makedepend mode: work with Libtool. (PR/385 too)
1697 * better support for unusual gettext setups, such as multiple po/ directories
1699 - Flag missing po/ and intl/ directories as warnings, not errors.
1700 - Disable these warnings if po/ does not exist.
1701 * Noteworthy manual updates:
1703 - Document how AC_CONFIG_AUX_DIR interacts with missing files.
1705 - Document `AM_YFLAGS = -d'. (PR/382)
1707 Bugs fixed in 1.7.2:
1708 * Fix installation and uninstallation of Info files built in subdirectories.
1709 * Do not run `./configure --with-included-gettext' during `make distcheck'
1710 if AM_GNU_GETTEXT([external]) is used.
1711 * Correctly uninstall renamed man pages.
1712 * Do not strip escaped newline in variables defined in one condition
1713 and augmented in another condition.
1714 * Fix ansi2knr rules for LIBOBJS sources.
1715 * Clean all known Texinfo index files, not only those which appear to
1716 be used, because we cannot know which indexes are used in included files.
1717 (PR/375, Debian Bug #168671)
1718 * Honor only the first @setfilename seen in a Texinfo file.
1719 * Treat "required file X not found" diagnostics as errors (exit status 1).
1720 * Don't complain that a required file is not found when it is a Makefile
1722 * Don't use single suffix inference rules when building `.info'-less
1723 Info files, for the sake of Solaris make.
1724 * The `check' target now depends on `$(BUILT_SOURCES)'. (PR/359)
1725 * Recognize multiple inference rules such as `.a.b .c.d:'. (PR/371)
1726 * Warn about multiple inference rules when -Wportability is used. (PR/372)
1727 * Fix building of deansified files from subdirectories. (PR/370)
1728 * Add missing `fi' in the .c->.obj rules.
1729 * Improve install-sh to work even when names contain spaces or certain
1730 (but not all) shell metachars.
1731 * Fix the following spurious failures in the test suite:
1732 depcomp2.test, gnits2.test, gnits3.test, python3.test, texinfo13.test
1733 * Noteworthy manual updates:
1734 - Augment the section about BUILT_SOURCES.
1735 - Mention that AM_PROG_CC_STDC is a relic that is better avoided today.
1737 Bugs fixed in 1.7.1:
1738 * Honor `ansi2knr' for files built in subdirectories, or using per-targets
1740 * Aclocal should now recognize macro names containing parentheses, e.g.
1741 AC_DEFUN([AC_LANG_PREPROC(Fortran 90)], [...]).
1742 * Erase *.sum and *.log files created by DejaGnu, during `make distclean'.
1744 * Install Python files even if they were built. (PR/369)
1745 * Have stamp-vti dependent upon configure instead of configure.ac, as the
1746 version might not be defined in the latter. (PR/358)
1747 * Reorder arguments passed to a couple of commands, so things works
1748 when POSIXLY_CORRECT=1.
1749 * Fix a regex that can cause Perl to segfault on large input.
1751 * Fix distribution of packages that have some sources defined conditionally,
1752 as in the `Conditional compilation using Automake conditionals' example
1754 * Fix spurious test suite failures on IRIX.
1755 * Don't report a required variable as undefined if it has been
1756 defined conditionally for the "right" conditions.
1757 * Fix cleaning of the /tmp subdirectory used by `make distcheck', in case
1758 `make distcheck' fails.
1759 * Fix distribution of included Makefile fragment, so we don't create
1760 spurious directories in the distribution. (PR/366)
1761 * Don't complain that a target lacks `.$(EXEEXT)' when it has it.
1764 * Autoconf 2.54 is required.
1765 * `aclocal' and `automake' will no longer warn about obsolete
1766 configure macros. This is done by `autoconf -Wobsolete'.
1767 * AM_CONFIG_HEADER, AM_SYS_POSIX_TERMIOS and
1768 AM_HEADER_TIOCGWINSZ_NEEDS_SYS_IOCTL are obsolete (although still
1769 supported). You should use AC_CONFIG_HEADERS, AC_SYS_POSIX_TERMIOS,
1770 and AC_HEADER_TIOCGWINSZ instead. `autoupdate' can upgrade
1771 `configure.ac' for you.
1772 * Support for per-program and per-library `_CPPFLAGS'.
1773 * New `ctags' target (builds CTAGS files).
1774 * Support for -Wmumble and -Wno-mumble, where mumble is a warning category
1775 (see `automake --help' or the manual for a list of them).
1776 * Honor the WARNINGS environment variable.
1777 * Omit the call to depcomp when using gcc3: call the compiler directly.
1778 * A new option, std-options, tests that programs support --help and --version
1779 when `make installcheck' is run. This is enabled by --gnits.
1780 * Texinfo rules now support the `ps' and `pdf' targets.
1781 * Info files are now created in the build directory, not the source directory.
1782 * info_TEXINFOS supports files in subdirectories (this requires Texinfo 4.1
1784 * `make distcheck' will enforce DESTDIR support by attempting
1786 * `+=' can be used in conditionals, even if the augmented variable
1787 was defined for another condition.
1788 * Makefile fragments (inserted with `include') are always distributed.
1789 * Use Autoconf's --trace interface to inspect configure.ac and get
1790 a more accurate view of it.
1791 * Add support for extending aclocal's default macro search path
1792 using a `dirlist' file within the aclocal directory.
1793 * automake --output-dir is deprecated.
1794 * The part of the distcheck target that checks whether uninstall actually
1795 removes all installed files has been moved in a separate target,
1796 distuninstallcheck, so it can be overridden easily.
1800 * Support for AM_INIT_GETTEXT([external])
1801 * Bug fixes, including:
1802 - Fix Automake's own `make install' so it works even if `ln' doesn't.
1803 - nobase_ programs and scripts honor --program-transform correctly.
1804 - Erase configure.lineno during `make distclean'.
1805 - Erase YACC and LEX outputs during `make maintainer-clean'.
1808 * Many bug fixes, including:
1809 - Requiring the current version works.
1810 - Fix "$@" portability issues (for Zsh).
1811 - Fix output of dummy dependency files in presence of post-processed
1813 - Don't compute dependencies in background to avoid races with libtool.
1814 - Fix handling of _OBJECTS variables for targets sharing source variables.
1815 - Check dependency mode for Java when AM_PROG_GCJ is used.
1818 * automake --output-dir is deprecated
1819 * Many bug fixes, including:
1820 - Don't choke on AM_LDFLAGS definitions.
1821 - Clean libtool objects from subdirectories.
1822 - Allow configure variables with reserved suffix and unknown prefix
1823 (e.g. AC_SUBST(mumble_LDFLAGS) when 'mumble' is not a target).
1824 - Fix the definition of AUTOMAKE and ACLOCAL in configure.
1827 * Autoconf 2.52 is required.
1828 * automake no longer run libtoolize.
1829 This is the job of autoreconf (from GNU Autoconf).
1830 * `dist' generates all the archive flavors, as did `dist-all'.
1831 * `dist-gzip' generates the Gzip tar file only.
1832 * Combining Automake Makefile conditionals no longer lead to a combinatorial
1833 explosion. Makefile.in's keep a reasonable size.
1834 * AM_FUNC_ERROR_AT_LINE, AM_FUNC_STRTOD, AM_FUNC_OBSTACK, AM_PTRDIFF_T
1835 are no longer shipped, since Autoconf 2.52 provides them (both as AM_
1837 * `#line' of Lex and Yacc files are properly set.
1838 * EXTRA_DIST can contain generated directories.
1839 * Support for dot-less extensions in suffix rules.
1840 * The part of the distcheck target that checks whether distclean actually
1841 cleans all built files has been moved in a separate target, distcleancheck,
1842 so it can be overridden easily.
1843 * `make distcheck' will pass additional options defined in
1844 $(DISTCHECK_CONFIGURE_FLAGS) to configure.
1845 * Fixed CDPATH portability problems, in particular for MacOS X.
1846 * Fixed handling of nobase_ targets.
1847 * Fixed support of implicit rules leading to .lo objects.
1848 * Fixed late inclusion of --add-missing files (e.g. depcomp) in DIST_COMMON
1849 * Added uninstall-hook target
1850 * `AC_INIT AM_INIT_AUTOMAKE(tarname,version)' is an obsolete construct.
1851 You can now use `AC_INIT(pkgname,version) AM_INIT_AUTOMAKE' instead.
1852 (Note that "pkgname" is not "tarname", see the manual for details.)
1853 It is also possible to pass a list of global Automake options as
1854 first argument to this new form of AM_INIT_AUTOMAKE.
1855 * Compiler-based assembler is now called `CCAS'; people expected `AS'
1856 to be a real assembler.
1857 * AM_INIT_AUTOMAKE will set STRIP itself when it needs it. Adding
1858 AC_CHECK_TOOL([STRIP], [strip]) manually is no longer required.
1859 * aclocal and automake are also installed with the version number
1860 appended, and some of the install directory names have changed.
1861 This lets you have multiple versions installed simultaneously.
1862 * Support for parsers and lexers in subdirectories.
1865 * Support for `configure.ac'.
1866 * Support for `else COND', `endif COND' and negated conditions `!COND'.
1867 * `make dist-all' is much faster.
1868 * Allows '@' AC_SUBSTs in macro names.
1869 * Faster AM_INIT_AUTOMAKE (requires update of `missing' script)
1870 * User-side dependency tracking. Developers no longer need GNU make
1872 * Uses DIST_SUBDIRS in some situations when SUBDIRS is conditional
1873 * Most files are correctly handled if they appear in subdirs
1874 For instance, a _DATA file can appear in a subdir
1875 * GNU tar is no longer required for `make dist'
1876 * Added support for `dist_' and `nodist_' prefixes
1877 * Added support for `nobase_' prefix
1878 * Compiled Java support
1879 * Support for per-executable and per-library compilation flags
1883 * Added support for the Fortran 77 programming language.
1884 * Re-indexed the Automake Texinfo manual.
1885 * Added `AM_FOOFLAGS' variable for each compiler invocation;
1886 e.g. AM_CFLAGS can be used in Makefile.am to set C compiler flags
1887 * Support for latest autoconf, including support for objext
1888 * Can now put `.' in SUBDIRS to control build order
1889 * `include' command and `+=' support for macro assignment
1890 * Dependency tracking no long susceptible to deleted header file problem
1891 * Maintainer mode now a conditional. @MAINT@ is now an anachronism.
1896 * Better Cygwin32 support
1897 * Support for suffix rules with _SOURCES variables
1898 * New options `readme-alpha' and `check-news'; Gnits mode sets these
1899 * @LEXLIB@ no longer required when lex source seen
1900 Lex support in `missing', and new lex macro. Update your missing script.
1901 * Built-in support for assembly
1902 * aclocal gives error if `AM_' macro not found
1903 * Passed YFLAGS, not YACCFLAGS, to yacc
1904 * AM_PROG_CC_STDC does not have to come before AC_PROG_CPP
1905 * Dependencies computed as a side effect of compilation
1906 * Preliminary support for Java
1907 * DESTDIR support at "make install" time
1908 * Improved ansi2knr support; you must use the latest ansi2knr.c (included)
1912 * Better DejaGnu support
1913 * Added no-installinfo option
1914 * Added Emacs Lisp support
1915 * Added --no-force option
1916 * Included `aclocal' program
1917 * Automake will now generate rules to regenerate aclocal.m4, if appropriate
1918 * Now uses `AM_' macro names everywhere
1919 * ansi2knr option can have directory prefix (eg `../lib/ansi2knr')
1920 ansi2knr now works correctly on K&R sources
1921 * Better C++, yacc, lex support
1922 * Will compute _DEPENDENCIES variables automatically if not supplied
1923 * Will interpolate $(...) and ${...} when examining contents of a variable
1924 * .deps files now in build directory, not source directory; dependency
1925 handling generally rewritten
1926 * DATA, MANS and BUILT_SOURCES no longer included in distribution
1927 * can now put config.h into a subdir
1928 * Added dist-all target
1929 * Support for install-info program (see texinfo 3.9)
1930 * Support for "yacc -d"
1931 * configure substitutions are automatically discovered and included
1932 in generated Makefile.in
1933 * Special --cygnus mode
1934 * OMIT_DEPENDENCIES can now hold list of dependencies to be omitted
1935 when making distribution. Some dependencies are auto-ignored.
1936 * Changed how libraries are specified in _LIBRARIES variable
1937 * Full libtool support, from Gord Matzigkeit
1938 * No longer have to explicitly touch stamp-h when using AC_CONFIG_HEADER;
1939 AM_CONFIG_HEADER handles it automatically
1940 * Texinfo output files no longer need .info extension
1941 * Added `missing' support
1943 * Conditionals in Makefile.am, from Ian Taylor
1947 * distcheck target runs install and installcheck targets
1948 * Added preliminary support for DejaGnu.
1953 * More libtool fixes from Gord Matzigkeit; libtool support is still
1955 * Added support for jm_MAINTAINER_MODE
1957 * New "distcheck" target
1961 * mkinstalldirs and mdate-sh now appear in directory specified by
1963 * Removed DIST_SUBDIRS, DIST_OTHER
1964 * AC_ARG_PROGRAM only required when an actual program exists
1965 * dist-hook target now run before distribution packaged up; idea from
1966 Dieter Baron. Other hooks exist, too.
1967 * Preliminary (unfinished) support for libtool
1968 * Added short option names.
1969 * Better "dist" support when gluing together multiple packages
1973 * Documentation updates (many from François Pinard)
1974 * strictness `normal' now renamed to `foreign'
1975 * Renamed --install-missing to --add-missing
1976 * Now handles AC_CONFIG_AUX_DIR
1977 * Now handles TESTS macro
1978 * DIST_OTHER renamed to EXTRA_DIST
1979 * DIST_SUBDIRS is deprecated
1980 * @ALLOCA@ and @LIBOBJS@ now work in _LDADD variables
1981 * Better error messages in many cases
1982 * Program names are canonicalized
1983 * Added "check" prefix; from Gord Matzigkeit
1987 * configure.in scanner knows about AC_PATH_XTRA, AC_OUTPUT ":" syntax
1988 * Beginnings of a test suite
1989 * Automatically adds -I options for $(srcdir), ".", and path to config.h
1990 * Doesn't print anything when running
1991 * Beginnings of MAINT_CHARSET support
1992 * Can specify version in AUTOMAKE_OPTIONS
1993 * Most errors recognizable by Emacs' M-x next-error
1994 * Added --verbose option
1995 * All "primary" variables now obsolete; use EXTRA_PRIMARY to supply
1996 configure-generated names
1997 * Required macros now distributed in aclocal.m4
1999 * --strictness=gnu is default
2003 * More sophisticated configure.in scanning; now understands ALLOCA and
2004 LIBOBJS directly, handles AC_CONFIG_HEADER more precisely, etc.
2005 * TEXINFOS and MANS now obsolete; use info_TEXINFOS and man_MANS instead.
2006 * CONFIG_HEADER variable now obsolete
2007 * Can handle multiple Texinfo sources
2008 * Allow hierarchies deeper than 2. From Gord Matzigkeit.
2009 * HEADERS variable no longer needed; now can put .h files directly into
2010 foo_SOURCES variable.
2011 * Automake automatically rebuilds files listed in AC_OUTPUT. The
2012 corresponding ".in" files are included in the distribution.
2015 * Added --gnu and --gnits options
2016 * More standards checking
2018 * Cleaned up 'dist' targets
2019 * Added AUTOMAKE_OPTIONS variable and several options
2020 * Now scans configure.in to get some information (preliminary)
2023 * Works with Perl 4 again
2026 * Added --install-missing option.
2027 * Pretty-prints generated macros and rules
2028 * Comments in Makefile.am are placed more intelligently in Makefile.in
2029 * Generates .PHONY target
2030 * Rule or macro in Makefile.am now overrides contents of Automake file
2031 * Substantial cleanups from François Pinard
2035 * Works with Perl 4 again.
2038 * New uniform naming scheme.
2039 * --strictness option
2041 * '.c' files corresponding to '.y' or '.l' files are automatically
2043 * Many bug fixes and cleanups
2046 * Allow objects to be conditionally included in libraries via lib_LIBADD.
2049 * Bug fixes in 'clean' code.
2050 * Now generates 'installdirs' target.
2051 * man page installation reworked.
2052 * 'make dist' no longer re-creates all Makefile.in's.
2055 * Reimplemented in Perl
2056 * Added --amdir option (for debugging)
2057 * Texinfo support cleaned up.
2058 * Automatic de-ANSI-fication cleaned up.
2059 * Cleaned up 'clean' targets.
2062 * Automatic dependency tracking
2063 * More documentation
2064 * New variables DATA and PACKAGEDATA
2065 * SCRIPTS installed using $(INSTALL_SCRIPT)
2066 * No longer uses double-colon rules
2068 * Changes in advance of internationalization
2072 Copyright (C) 1995-2012 Free Software Foundation, Inc.
2074 This program is free software; you can redistribute it and/or modify
2075 it under the terms of the GNU General Public License as published by
2076 the Free Software Foundation; either version 2, or (at your option)
2079 This program is distributed in the hope that it will be useful,
2080 but WITHOUT ANY WARRANTY; without even the implied warranty of
2081 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
2082 GNU General Public License for more details.
2084 You should have received a copy of the GNU General Public License
2085 along with this program. If not, see <http://www.gnu.org/licenses/>.