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20 AM_PROG_CC_STDC: superseded by AC_PROG_CC since October 2002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23 AM_CONFIG_HEADER: superseded by AC_CONFIG_HEADERS since July 2002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 * Silent rules support:
36 - Support for silent rules is now always active in Automake-generated
37 Makefiles. So, although the verbose output is still the default,
38 the user can now always use "./configure --enable-silent-rules" or
39 "make V=0" to enable quieter output in the package he's building.
41 - The 'silent-rules' option has now become a no-op, preserved for
42 backward-compatibility only. In particular, its use does not disable
43 the warnings in the 'portability-recursive' category anymore.
45 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
49 * WARNING: Future backward-incompatibilities!
51 - Autoconf 2.65 or later will be required by the next major Automake
52 version (1.13). Until now, Automake has required Autoconf version
55 - Starting from the next major Automake version (1.13), the rules to
56 build pdf, ps and dvi output from Texinfo input will use the '--tidy'
57 option by default. Since such an option was introduced in Texinfo
58 4.9, this means that Makefiles generated by future Automake versions
59 will require at least that version of Texinfo.
61 - Starting from the next major Automake version (1.13), the parallel
62 testsuite harness (previously only enabled by the 'parallel-tests'
63 option) will become the default one; the older serial testsuite
64 harness will still be available through the use of the 'serial-tests'
67 - Support for the two- and three-arguments invocation forms of the
68 AM_INIT_AUTOMAKE macro will be deprecated in the next minor version
69 of Automake (1.12.1) and removed in the next major version (1.13).
71 - The exact order in which the directories in the aclocal macro
72 search path are looked up is probably going to be changed in the
73 next Automake release (1.13).
75 * New supported languages:
77 - Support for Objective C++ has been added; it should work similarly to
78 the support for Objective C.
80 * Deprecated obsolescent features:
82 - Support for the "Cygnus-style" trees (enabled by the 'cygnus' option) is
83 now deprecated (its use triggers a warning in the 'obsolete' category).
84 It will be removed in the next major Automake release (1.13).
86 - The long-obsolete (since 1.10) automake-provided $(mkdir_p) make
87 variable, @mkdir_p@ configure-time substitution and AM_PROG_MKDIR
88 m4 macro are deprecated, eliciting a warning in the 'obsolete'
89 category. They will be removed in the next major version (1.13).
93 * Bugs introduced by 1.12:
95 - Several weaknesses in Automake's own build system and test suite
98 * Bugs introduced by 1.11.3:
100 - When given non-option arguments, aclocal rejects them, instead of
101 silently ignoring them.
103 * Long-standing bugs:
105 - When the 'color-tests' option is in use, forcing of colored testsuite
106 output through "AM_COLOR_TESTS=always" works even if the terminal is
107 a non-ANSI one, i.e., if the TERM environment variable has a value of
110 - Several inefficiencies and poor performances in the implementation
111 of the parallel-tests 'check' and 'recheck' targets have been fixed.
113 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
117 * Obsolete features removed:
119 - The never documented nor truly used script 'acinstall' has been
122 - Support for automatic de-ANSI-fication has been removed.
124 - The support for the "obscure" multilib feature has been removed
125 from Automake core (but remains available in the 'contrib/'
126 directory of the Automake distribution).
128 - Support for ".log -> .html" conversion and the check-html and
129 recheck-html targets has been removed from Automake core (but
130 remains available in the 'contrib/' directory of the Automake
133 - The deprecated 'lzma' compression format for distribution archives
134 has been removed, in favor of 'xz' and 'lzip'.
136 - The obsolete AM_WITH_REGEX macro has been removed.
138 - The long-deprecated options '--output-dir', '--Werror' and
139 '--Wno-error' have been removed.
141 - The chapter on the history of Automake has been moved out of the
142 reference manual, into a new dedicated Texinfo file.
146 - New 'cscope' target to build a cscope database for the source tree.
148 * Changes to Automake-generated testsuite harnesses:
150 - The new automake option 'serial-tests' has been introduced. It can
151 be used to explicitly instruct automake to use the older serial
152 testsuite harness. This is still the default at the moment, but it
153 might change in future versions.
155 - The 'recheck' target (provided by the parallel testsuite harness) now
156 depends on the 'all' target. This allows for a better user-experience
157 in test-driven development. See automake bug#11252.
159 - Test scripts that exit with status 99 to signal an "hard error" (e.g.,
160 and unexpected or internal error, or a failure to set up the test case
161 scenario) have their outcome reported as an 'ERROR' now. Previous
162 versions of automake reported such an outcome as a 'FAIL' (the only
163 difference with normal failures being that hard errors were counted
164 as failures even when the test originating them was listed in
167 - The testsuite summary displayed by the parallel-test harness has a
168 completely new format, that always list the numbers of passed, failed,
169 xfailed, xpassed, skipped and errored tests, even when these numbers
170 are zero (but using smart coloring when the color-tests option is in
173 - The default testsuite driver offered by the 'parallel-tests' option is
174 now implemented (partly at least) with the help of automake-provided
175 auxiliary scripts (e.g., 'test-driver'), instead of relying entirely
176 on code in the generated Makefile.in.
177 This has two noteworthy implications. The first one is that projects
178 using the 'parallel-tests' option should now either run automake with
179 the '--add-missing' option, or manually copy the 'test-driver' script
180 into their tree. The second, and more important, implication is that
181 now, when the 'parallel-tests' option is in use, TESTS_ENVIRONMENT can
182 not be used anymore to define a test runner, and the command specified
183 in LOG_COMPILER (and <ext>_LOG_COMPILER) must be a *real* executable
184 program or script. For example, this is still a valid usage (albeit
187 TESTS_ENVIRONMENT = \
188 if test -n '$(STRICT_TESTS)'; then \
189 maybe_errexit='-e'; \
193 LOG_COMPILER = $(SHELL) $$maybe_errexit
195 while this is not anymore:
197 TESTS_ENVIRONMENT = \
198 $(SHELL) `test -n '$(STRICT_TESTS_CHECKING)' && echo ' -e'`
202 TESTS_ENVIRONMENT = \
203 run_with_perl_or_shell () \
205 if grep -q '^#!.*perl' $$1; then
211 LOG_COMPILER = run_with_perl_or_shell
213 - The package authors can now use customary testsuite drivers within
214 the framework provided by the 'parallel-tests' testsuite harness.
215 Consistently with the existing syntax, this can be done by defining
216 special makefile variables 'LOG_DRIVER' and '<ext>_LOG_DRIVER'.
218 - A new developer-reserved variable 'AM_TESTS_FD_REDIRECT' can be used
219 to redirect/define file descriptors used by the test scripts.
221 - The parallel-tests harness generates now, in addition the '.log' files
222 holding the output produced by the test scripts, a new set of '.trs'
223 files, holding "metadata" derived by the execution of the test scripts;
224 among such metadata are the outcomes of the test cases run by a script.
226 - Initial and still experimental support for the TAP test protocol is
229 * Changes to Yacc and Lex support:
231 - C source and header files derived from non-distributed Yacc and/or
232 Lex sources are now removed by a simple "make clean" (while they were
233 previously removed only by "make maintainer-clean").
235 - Slightly backward-incompatible change, relevant only for use of Yacc
236 with C++: the extensions of the header files produced by the Yacc
237 rules are now modelled after the extension of the corresponding
238 sources. For example, yacc files named "foo.y++" and "bar.yy" will
239 produce header files named "foo.h++" and "bar.hh" respectively, where
240 they would have previously produced header files named simply "foo.h"
241 and "bar.h". This change offers better compatibility with 'bison -o'.
243 * Miscellaneous changes:
245 - The AM_PROG_VALAC macro now causes configure to exit with status 77,
246 rather than 1, if the vala compiler found is too old.
248 - The build system of Automake itself now avoids the use of make
249 recursion as much as possible.
251 - Automake now prefers to quote 'like this' or "like this", rather
252 than `like this', in diagnostic message and generated Makefiles,
253 to accommodate the new GNU Coding Standards recommendations.
255 - Automake has a new option '--print-libdir' that prints the path of the
256 directory containing the Automake-provided scripts and data files.
258 - The 'dist' and 'dist-all' targets now can run compressors in parallel.
260 - The rules to create pdf, dvi and ps output from Texinfo files now
261 works better with modern 'texi2dvi' script, by explicitly passing
262 it the '--clean' option to ensure stray auxiliary files are not
263 left to clutter the build directory.
265 - Automake can now generate silenced rules for texinfo outputs.
267 - Some auxiliary files that are automatically distributed by Automake
268 (e.g., 'install-sh', or the 'depcomp' script for packages compiling
269 C sources) might now be listed in the DIST_COMMON variable in many
270 Makefile.in files, rather than in the top-level one.
272 - Messages of types warning or error from 'automake' and 'aclocal'
273 are now prefixed with the respective type, and presence of -Werror
276 - Automake's early configure-time sanity check now tries to avoid
277 sleeping for a second, which slowed down cached configure runs
278 noticeably. In that case, it will check back at the end of the
279 configure script to ensure that at least one second has passed, to
280 avoid time stamp issues with makefile rules rerunning autotools
283 - The warnings in the category 'extra-portability' are now enabled by
284 '-Wall'. In previous versions, one has to use '-Wextra-portability'
289 - Various minor bugfixes for recent or long-standing bugs.
291 * Bugs introduced by 1.11:
293 - The AM_COND_IF macro also works if the shell expression for the
294 conditional is no longer valid for the condition.
296 - The automake-provided parallel testsuite harness does not fail anymore
297 with BSD make used in parallel mode when there are test scripts in a
298 subdirectory, like in:
300 TESTS = sub/foo.test sub/bar.test
302 * Long-standing bugs:
304 - Automake's own build system finally have a real "installcheck" target.
306 - Vala-related cleanup rules are now more complete, and work better in
309 - Files listed with the AC_REQUIRE_AUX_FILE macro in configure.ac are
310 now automatically distributed also if the directory of the auxiliary
311 files coincides with the top-level directory.
313 - Automake now detects the presence of the '-d' flag in the various
314 '*YFLAGS' variables even when their definitions involve indirections
315 through other variables, such as in:
317 AM_YFLAGS = $(foo_opts)
319 - Automake now complains if a '*YFLAGS' variable has any conditional
320 content, not only a conditional definition.
322 - Explicit enabling and/or disabling of Automake warning categories
323 through the '-W...' options now always takes precedence over the
324 implicit warning level implied by Automake strictness (foreign, gnu
325 or gnits), regardless of the order in which such strictness and
326 warning flags appear. For example, a setting like:
327 AUTOMAKE_OPTIONS = -Wall --foreign
328 will cause the warnings in category 'portability' to be enabled, even
329 if those warnings are by default disabled in 'foreign' strictness.
331 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
333 Bugs fixed in 1.11.5:
335 * Bugs introduced by 1.11.3:
337 - Vala files with '.vapi' extension are now recognized and handled
338 correctly again. See automake bug#11222.
340 - Vala support work again for projects that contain some program
341 built from '.vala' (and possibly '.c') sources and some other
342 program built from '.c' sources *only*. See automake bug#11229.
344 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
348 * Miscellaneous changes:
350 - The 'ar-lib' script now ignores the "s" (symbol index) and "S" (no
351 symbol index) modifiers as well as the "s" action, as the symbol index
352 is created unconditionally by Microsoft lib. Also, the "q" (quick)
353 action is now a synonym for "r" (replace). Also, the script has been
354 ignoring the "v" (verbose) modifier already since Automake 1.11.3.
356 - When the 'compile' script is used to wrap MSVC, it now accepts an
357 optional space between the -I, -L and -l options and their respective
358 arguments, for better POSIX compliance.
360 - There is an initial, experimental support for automatic dependency
361 tracking with tcc (the Tiny C Compiler). Its associated depmode is
362 currently recognized as "icc" (but this and other details are likely
363 to change in future versions).
365 - Automatic dependency tracking now works also with the IBM XL C/C++
366 compilers, thanks to the new new depmode 'xlc'.
368 Bugs fixed in 1.11.4:
370 * Bugs introduced by 1.11.2:
372 - A definition of 'noinst_PYTHON' before 'python_PYTHON' (or similar)
373 don't cause spurious failures upon "make install" anymore.
375 - The user can now instruct the 'uninstall-info' rule not to update
376 the '${infodir}/dir' file by exporting the environment variable
377 'AM_UPDATE_INFO_DIR' to the value "no". This is done for consistency
378 with how the 'install-info' rule operates since automake 1.11.2.
380 * Long-standing bugs:
382 - It is now possible for a foo_SOURCES variable to hold Vala sources
383 together with C header files, as well as with sources and headers for
384 other supported languages (e.g., C++). Previously, only mixing C and
385 Vala sources was supported.
387 - If "aclocal --install" is used, and the first directory specified with
388 '-I' is non-existent, aclocal will now create it before trying to copy
391 - An empty declaration of a "foo_PRIMARY" don't cause anymore the
392 generated install rules to create an empty $(foodir) directory;
393 for example, if Makefile.am contains something like:
397 pkglibexec_SCRIPTS += bar.sh
400 the $(pkglibexec) directory will not be created upon "make install".
402 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
406 * Miscellaneous changes:
408 - Automake's own build system is more silent by default, making use of
409 the 'silent-rules' option.
411 - The master copy of the `gnupload' script is now maintained in gnulib,
414 - The `missing' script doesn't try to wrap calls to `tar' anymore.
416 - "make dist" doesn't wrap `tar' invocations with the `missing' script
417 anymore. Similarly, the obsolescent variable `$(AMTAR)' (which you
418 shouldn't be using BTW ;-) does not invoke the missing script anymore
419 to wrap tar, but simply invokes the `tar' program itself.
421 - "make dist" can now create lzip-compressed tarballs.
423 - In the Automake info documentation, the Top node and the nodes about
424 the invocation of the automake and aclocal programs have been renamed;
425 now, calling "info automake" will open the Top node, while calling
426 "info automake-invocation" and "info aclocal-invocation" will access
427 the nodes about the invocation of respectively automake and aclocal.
429 - Automake is now distributed as a gzip-compressed and an xz-compressed
430 tarball. Previously, bzip2 was used instead of xz.
432 - The last relics of Python 1.5 support have been removed from the
433 AM_PATH_PYTHON macro.
435 - For programs and libraries, automake now detects EXTRA_foo_DEPENDENCIES
436 and adds them to the normal list of dependencies, but without
437 overwriting the foo_DEPENDENCIES variable, which is normally computed
440 Bugs fixed in 1.11.3:
442 * Bugs introduced by 1.11.2:
444 - Automake now correctly recognizes the prefix/primary combination
445 `pkglibexec_SCRIPTS' as valid.
447 - The parallel-tests harness doesn't trip anymore on sed implementations
448 with stricter limits on the length of input lines (problem seen at
451 * Long-standing bugs:
453 - The "deleted header file problem" for *.am files is avoided by stub
454 rules. This allows `make' to trigger a rerun of `automake' also if
455 some previously needed `.am' file has been removed.
457 - The `silent-rules' option now generates working makefiles even
458 for the uncommon `make' implementations that do not support the
459 nested-variables extension to POSIX 2008. For such `make'
460 implementations, whether a build is silent is determined at
461 configure time, and cannot be overridden at make time with
462 `make V=0' or `make V=1'.
464 - Vala support now works better in VPATH setups.
466 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
470 * Changes to aclocal:
472 - The `--acdir' option is deprecated. Now you should use the new options
473 `--automake-acdir' and `--system-acdir' instead.
475 - The `ACLOCAL_PATH' environment variable is now interpreted as a
476 colon-separated list of additional directories to search after the
477 automake internal acdir (by default ${prefix}/share/aclocal-APIVERSION)
478 and before the system acdir (by default ${prefix}/share/aclocal).
480 * Miscellaneous changes:
482 - The Automake support for automatic de-ANSI-fication has been
483 deprecated. It will probably be removed in the next major Automake
486 - The `lzma' compression scheme and associated automake option `dist-lzma'
487 is obsoleted by `xz' and `dist-xz' due to upstream changes.
489 - You may adjust the compression options used in dist-xz and dist-bzip2.
490 The default is now merely -e for xz, but still -9 for bzip; you may
491 specify a different level via the XZ_OPT and BZIP2 envvars respectively.
492 E.g., "make dist-xz XZ_OPT=-7" or "make dist-bzip2 BZIP2=-5"
494 - The `compile' script now converts some options for MSVC for a better
495 user experience. Similarly, the new `ar-lib' script wraps Microsoft lib.
497 - The py-compile script now accepts empty arguments passed to the options
498 `--destdir' and `--basedir', and complains about unrecognized options.
499 Moreover, a non-option argument or a special `--' argument terminates
502 - A developer that needs to pass specific flags to configure at "make
503 distcheck" time can now, and indeed is advised to, do so by defining
504 the developer-reserved makefile variable AM_DISTCHECK_CONFIGURE_FLAGS,
505 instead of the old DISTCHECK_CONFIGURE_FLAGS.
506 The DISTCHECK_CONFIGURE_FLAGS variable should now be reserved for the
507 user; still, the old Makefile.am files that used to define it will
508 still continue to work as before.
510 - New macro AM_PROG_AR that looks for an archiver and wraps it in the new
511 'ar-lib' auxiliary script if the selected archiver is Microsoft lib.
512 This new macro is required for LIBRARIES and LTLIBRARIES when automake
513 is run with -Wextra-portability and -Werror.
515 - When using DejaGnu-based testsuites, the user can extend the `site.exp'
516 file generated by automake-provided rules by defining the special make
517 variable `$(EXTRA_DEJAGNU_SITE_CONFIG)'.
519 - The `install-info' rule can now be instructed not to create/update
520 the `${infodir}/dir' file, by exporting the new environment variable
521 `AM_UPDATE_INFO_DIR' to the value "no".
523 Bugs fixed in 1.11.2:
525 * Bugs introduced by 1.11:
527 - The parallel-tests driver no longer produces erroneous results with
528 Tru64/OSF 5.1 sh upon unreadable log files.
530 - The `parallel-tests' test driver does not report spurious successes
531 when used with concurrent FreeBSD make (e.g., "make check -j3").
533 - When the parallel-tests driver is in use, automake now explicitly
534 rejects invalid entries and conditional contents in TEST_EXTENSIONS,
535 instead of issuing confusing and apparently unrelated error messages
536 (e.g., "non-POSIX variable name", "bad characters in variable name",
537 or "redefinition of TEST_EXTENSIONS), or even, in some situations,
538 silently producing broken `Makefile.in' files.
540 - The `silent-rules' option now truly silences all compile rules, even
541 when dependency tracking is disabled. Also, when `silent-rules' is
542 not used, `make' output no longer contains spurious backslash-only
543 lines, thus once again matching what Automake did before 1.11.
545 - The AM_COND_IF macro also works if the shell expression for the
546 conditional is no longer valid for the condition.
548 * Long-standing bugs:
550 - The order of Yacc and Lex flags is fixed to be consistent with other
551 languages: $(AM_YFLAGS) comes before $(YFLAGS), and $(AM_LFLAGS) before
552 $(LFLAGS), so that the user variables override the developer variables.
554 - "make distcheck" now correctly complains also when "make uninstall"
555 leaves one and only one file installed in $(prefix).
557 - A "make uninstall" issued before a "make install", or after a mere
558 "make install-data" or a mere "make install-exec" does not spuriously
561 - Automake now warns about more primary/directory invalid combinations,
562 such as "doc_LIBRARIES" or "pkglib_PROGRAMS".
564 - Rules generated by Automake now try harder to not change any files when
565 `make -n' is invoked. Fixes include compilation of Emacs Lisp, Vala, or
566 Yacc source files and the rule to update config.h.
568 - Several scripts and the parallel-tests testsuite driver now exit with
569 the right exit status upon receiving a signal.
571 - A per-Makefile.am setting of -Werror does not erroneously carry over
572 to the handling of other Makefile.am files.
574 - The code for automatic dependency tracking works around a Solaris
575 make bug triggered by sources containing repeated slashes when the
576 `subdir-objects' option was used.
578 - The makedepend and hp depmodes now work better with VPATH builds.
580 - Java sources specified with check_JAVA are no longer compiled for
581 "make all", but only for "make check".
583 - An usage like "java_JAVA = foo.java" will now cause Automake to warn
584 and error out if `javadir' is undefined, instead of silently producing
585 a broken Makefile.in.
587 - aclocal and automake now honour the configure-time definitions of
588 AUTOCONF and AUTOM4TE when they spawn autoconf or autom4te processes.
590 - The `install-info' recipe no longer tries to guess whether the
591 `install-info' program is from Debian or from GNU, and adaptively
592 change its behaviour; this has proven to be frail and easy to
595 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
597 Bugs fixed in 1.11.1:
599 - Lots of minor bugfixes.
601 * Bugs introduced by 1.11:
603 - The `parallel-tests' test driver works around a GNU make 3.80 bug with
604 trailing white space in the test list (`TESTS = foo $(EMPTY)').
606 * Long standing bugs:
608 - On Darwin 9, `pythondir' and `pyexecdir' pointed below `/Library/Python'
609 even if the `--prefix' argument pointed outside of a system directory.
610 AM_PATH_PYTHON has been fixed to ignore the value returned from python's
611 `get_python_lib' function if it points outside the configured prefix,
612 unless the `--prefix' argument was either `/usr' or below `/System'.
614 - The testsuite does not try to change the mode of `ltmain.sh' files from
615 a Libtool installation (symlinked to test directories) any more.
617 - AM_PROG_GCJ uses AC_CHECK_TOOLS to look for `gcj' now, so that prefixed
618 tools are preferred in a cross-compile setup.
620 - The distribution is tarred up with mode 755 now by the `dist*' targets.
621 This fixes a race condition where untrusted users could modify files
622 in the $(PACKAGE)-$(VERSION) distdir before packing if the toplevel
623 build directory was world-searchable. This is CVE-2009-4029.
625 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
629 * Version requirements:
631 - Autoconf 2.62 or greater is required.
633 * Changes to aclocal:
635 - The autoconf version check implemented by aclocal in aclocal.m4
636 (and new in Automake 1.10) is degraded to a warning. This helps
637 in the common case where the Autoconf versions used are compatible.
639 * Changes to automake:
641 - The automake program can run multiple threads for creating most
642 Makefile.in files concurrently, if at least Perl 5.7.2 is available
643 with interpreter-based threads enabled. Set the environment variable
644 AUTOMAKE_JOBS to the maximum number of threads to use, in order to
645 enable this experimental feature.
647 * Changes to Libtool support:
649 - Libtool generic flags are now passed to the install and uninstall
652 - distcheck works with Libtool 2.x even when LT_OUTPUT is used, as
653 config.lt is removed correctly now.
657 - subdir-object mode works now with Fortran (F77, FC, preprocessed
658 Fortran, and Ratfor).
660 - For files with extension .f90, .f95, .f03, or .f08, the flag
661 $(FCFLAGS_f[09]x) computed by AC_FC_SRCEXT is now used in compile rules.
663 - Files with extension .sx are also treated as preprocessed assembler.
665 - The default source file extension (.c) can be overridden with
666 AM_DEFAULT_SOURCE_EXT now.
668 - Python 3.0 is supported now, Python releases prior to 2.0 are no
671 - AM_PATH_PYTHON honors python's idea about the site directory.
673 - There is initial support for the Vala programming language, when using
676 * Miscellaneous changes:
678 - Automake development is done in a git repository on Savannah now, see
680 http://git.sv.gnu.org/gitweb/?p=automake.git
682 A read-only CVS mirror is provided at
684 cvs -d :pserver:anonymous@pserver.git.sv.gnu.org:/automake.git \
685 checkout -d automake HEAD
687 - "make dist" can now create xz-compressed tarballs,
688 as well as (deprecated?) lzma-compressed tarballs.
690 - `automake --add-missing' will by default install the GPLv3 file as
691 COPYING if it is missing. It will also warn that the license file
692 should be added to source control. Note that Automake will never
693 overwrite an existing COPYING file, even when the `--force-missing'
696 - The manual is now distributed under the terms of the GNU FDL 1.3.
698 - Automake ships and installs man pages for automake and aclocal now.
700 - New shorthand `$(pkglibexecdir)' for `$(libexecdir)/@PACKAGE@'.
702 - install-sh supports -C, which does not update the installed file
703 (and its time stamps) if the contents did not change.
705 - The `gnupload' script has been revamped.
707 - The `depcomp' and `compile' scripts now work with MSVC under MSYS.
709 - The targets `install' and `uninstall' are more efficient now, in that
710 for example multiple files from one Automake variable such as
711 `bin_SCRIPTS' are copied in one `install' (or `libtool --mode=install')
712 invocation if they do not have to be renamed.
714 Both install and uninstall may sometimes enter (`cd' into) the target
715 installation directory now, when no build-local scripts are used.
717 Both install and uninstall do not fail anymore but do nothing if an
718 installation directory variable like `bindir' is set to the empty string.
720 For built-in rules, `make install' now fails reliably if installation
721 of a file failed. Conversely, `make uninstall' even succeeds when
722 issued multiple times.
724 These changes may need some adjustments from users: For example,
725 some `install' programs refuse to install multiple copies of the
726 same file in one invocation, so you may need to remove duplicate
727 entries from file lists.
729 Also, within one set of files, say, nobase_data_DATA, the order of
730 installation may be changed, or even unstable among different hosts,
731 due to the use of associative arrays in awk. The increased use of
732 awk matches a similar move in Autoconf to provide for better scaling.
734 Further, most undocumented per-rule install command variables such as
735 binSCRIPT_INSTALL have been removed because they are not needed any
736 more. Packages which use them should be using the appropriate one of
737 INSTALL_{DATA,PROGRAM,SCRIPT} or their install_sh_{DATA,PROGRAM,SCRIPT}
738 counterpart, depending on the type of files and the need for automatic
739 target directory creation.
741 - The "deleted header file problem" for *.m4 files is avoided by
742 stub rules. This allows `make' to trigger a rerun of `aclocal'
743 also if some previously needed macro file has been removed.
745 - Rebuild rules now also work for a removed `subdir/Makefile.in' in
746 an otherwise up to date tree.
748 - The `color-tests' option causes colored test result output on terminals.
750 - The `parallel-tests' option enables a new test driver that allows for
751 parallel test execution, inter-test dependencies, lazy test execution
752 for unit-testing, re-testing only failed tests, and formatted result output
753 as RST (reStructuredText) and HTML. Enabling this option may require some
754 changes to your test suite setup; see the manual for details.
756 - The `silent-rules' option enables Linux kernel-style silent build output.
757 This option requires the widely supported but non-POSIX `make' feature
758 of recursive variable expansion, so do not use it if your package needs
759 to build with `make' implementations that do not support it.
761 To enable less verbose build output, the developer has to use the Automake
762 option `silent-rules' in `AM_INIT_AUTOMAKE', or call the `AM_SILENT_RULES'
763 macro. The user may then set the default verbosity by passing the
764 `--enable-silent-rules' option to `configure'. At `make' run time, this
765 default may be overridden using `make V=0' for less verbose, and `make V=1'
766 for backward-compatible verbose output.
768 - New prefix `notrans_' for manpages which should not be transformed
769 by --program-transform.
771 - New macro AM_COND_IF for conditional evaluation and conditional
774 - For AC_CONFIG_LINKS, if source and destination are equal, do not
775 remove the file in a non-VPATH build. Such setups work with Autoconf
778 - AM_MAINTAINER_MODE now allows for an optional argument specifying
781 - AM_SUBST_NOTMAKE may prevent substitution of AC_SUBSTed variables,
782 useful especially for multi-line values.
784 - Automake's early configure-time sanity check now diagnoses an
785 unsafe absolute source directory name and makes configure fail.
787 - The Automake macros and rules cope better with whitespace in the
788 current directory name, as long as the relative path to `configure'
789 does not contain whitespace. To this end, the values of `$(MISSING)'
790 and `$(install_sh)' may contain suitable quoting, and their expansion
791 might need `eval'uation if used outside of a makefile. These
792 undocumented variables may be used in several documented macros such
793 as $(AUTOCONF) or $(MAKEINFO).
797 * Long-standing bugs:
799 - Fix aix dependency tracking for libtool objects.
801 - Work around AIX sh quoting issue in AC_PROG_CC_C_O, leading to
802 unnecessary use of the `compile' script.
804 - For nobase_*_LTLIBRARIES with nonempty directory components, the
805 correct `-rpath' argument is used now.
807 - `config.status --file=Makefile depfiles' now also works with the
808 extra quoting used internally by Autoconf 2.62 and newer
809 (it used to work only without the `--file=' bit).
811 - The `missing' script works better with versioned tool names.
813 - Semantics for `missing help2man' have been revamped:
815 Previously, if `help2man' was not present, `missing help2man' would have
816 the following semantics: if some man page was out of date but present, then
817 a warning would be printed, but the exit status was 0. If the man page was
818 not present at all, then `missing' would create a replacement man page
819 containing an error message, and exit with a status of 2. This does not play
820 well with `make': the next run will see this particular man page as being up
821 to date, and will only error out on the next generated man page, if any;
822 repeat until all pages are done. This was not desirable.
824 These are the new semantics: if some man page is not present, and help2man
825 is not either, then `missing' will warn and generate the replacement page
826 containing the error message, but exit successfully. However, `make dist'
827 will ensure that no such bogus man pages are packaged into a tarball.
829 - Targets provided by automake behave better with `make -n', in that they
830 take care not to create files.
832 - `config.status Makefile... depfiles' works fine again in the presence of
833 disabled dependency tracking.
835 - The default no-op recursive rules for these targets also work with BSD make
836 now: html, install-html, install-dvi, install-pdf, install-pdf, install-info.
838 - `make distcheck' works also when both a directory and some file below it
839 have been added to a distribution variable, such as EXTRA_DIST or *_SOURCES.
841 - Texinfo dvi, ps, pdf, and html output files are not removed upon
842 `make mostlyclean' any more; only the LaTeX by-products are.
844 - Renamed objects also work with the `subdir-objects' option and
845 source file languages which Automake does not know itself.
847 - `automake' now correctly complains about variable assignments which are
848 preceded by a comment, extend over multiple lines with backslash-escaped
849 newlines, and end in a comment sign. Previous versions would silently
850 and wrongly ignore such assignments completely.
852 * Bugs introduced by 1.10:
854 - Fix output of dummy dependency files in presence of post-processed
855 Makefile.in's again, but also cope with long lines.
857 - $(EXEEXT) is automatically appended to filenames of XFAIL_TESTS
858 that have been declared as programs in the same Makefile.
859 This is for consistency with the analogous change to TESTS in 1.10.
861 - Fix order of standard includes to again be `-I. -I$(srcdir)',
862 followed by directories containing config headers.
864 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
868 * Version requirements:
870 - Autoconf 2.60 or greater is required.
872 - Perl 5.6 or greater is required.
874 * Changes to aclocal:
876 - aclocal now also supports -Wmumble and -Wno-mumble options.
878 - `dirlist' entries (for the aclocal search path) may use shell
879 wildcards such as `*', `?', or `[...]'.
881 - aclocal supports an --install option that will cause system-wide
882 third-party macros to be installed in the local directory
883 specified with the first -I flag. This option also uses #serial
884 lines in M4 files to upgrade local macros.
886 The new aclocal options --dry-run and --diff help to review changes
887 before they are installed.
889 - aclocal now outputs an autoconf version check in aclocal.m4 in
890 projects using automake.
892 For a few years, automake and aclocal have been calling autoconf
893 (or its underlying engine autom4te) to accurately retrieve the
894 data they need from configure.ac and its siblings. Doing so can
895 only work if all autotools use the same version of autoconf. For
896 instance a Makefile.in generated by automake for one version of
897 autoconf may stop working if configure is regenerated with another
898 version of autoconf, and vice versa.
900 This new version check ensures that the whole build system has
901 been generated using the same autoconf version.
903 * Support for new Autoconf macros:
905 - The new AC_REQUIRE_AUX_FILE Autoconf macro is supported.
907 - If `subdir-objects' is set, and AC_CONFIG_LIBOBJ_DIR is specified,
908 $(LIBOBJS), $(LTLIBOBJS), $(ALLOCA), and $(LTALLOCA) can be used
909 in different directories. However, only one instance of such a
910 library objects directory is supported.
912 * Change to Libtool support:
914 - Libtool generic flags (those that go before the --mode=MODE option)
915 can be specified using AM_LIBTOOLFLAGS and target_LIBTOOLFLAGS.
917 * Yacc and Lex changes:
919 - The rebuild rules for distributed Yacc and Lex output will avoid
920 overwriting existing files if AM_MAINTAINER_MODE and maintainer-mode
923 - ylwrap is now always used for lex and yacc source files,
924 regardless of whether there is more than one source per directory.
928 - Preprocessed assembler (*.S) compilation now honors CPPFLAGS,
929 AM_CPPFLAGS and per-target _CPPFLAGS, and supports dependency
930 tracking, unlike non-preprocessed assembler (*.s).
932 - subdir-object mode works now with Assembler. Automake assumes
933 that the compiler understands `-c -o'.
935 - Preprocessed assembler (*.S) compilation now also honors
936 $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES).
938 - Improved support for Objective C:
939 - Autoconf's new AC_PROG_OBJC will enable automatic dependency tracking.
940 - A new section of the manual documents the support.
942 - New support for Unified Parallel C:
943 - AM_PROG_UPC looks for a UPC compiler.
944 - A new section of the manual documents the support.
946 - Per-target flags are now correctly handled in link rules.
948 For instance maude_CFLAGS correctly overrides AM_CFLAGS; likewise
949 for maude_LDFLAGS and AM_LDFLAGS. Previous versions bogusly
950 preferred AM_CFLAGS over maude_CFLAGS while linking, and they
951 used both AM_LDFLAGS and maude_LDFLAGS on the same link command.
953 The fix for compiler flags (i.e., using maude_CFLAGS instead of
954 AM_CFLAGS) should not hurt any package since that is how _CFLAGS
955 is expected to work (and actually works during compilation).
957 However using maude_LDFLAGS "instead of" AM_LDFLAGS rather than
958 "in addition to" breaks backward compatibility with older versions.
959 If your package used both variables, as in
961 AM_LDFLAGS = common flags
963 a_LDFLAGS = more flags
966 and assumed *_LDFLAGS would sum up, you should rewrite it as
968 AM_LDFLAGS = common flags
970 a_LDFLAGS = $(AM_LDFLAGS) more flags
973 This new behavior of *_LDFLAGS is more coherent with other
974 per-target variables, and the way *_LDFLAGS variables were
975 considered internally.
977 * New installation targets:
979 - New targets mandated by GNU Coding Standards:
984 By default they will only install Texinfo manuals.
985 You can customize them with *-local variants:
991 - The undocumented recursive target `uninstall-info' no longer exists.
992 (`uninstall' is in charge of removing all possible documentation
993 flavors, including optional formats such as dvi, ps, or info even
994 when `no-installinfo' is used.)
996 * Miscellaneous changes:
998 - Automake no longer complains if input files for AC_CONFIG_FILES
999 are specified using shell variables.
1001 - clean, distribution, or rebuild rules are normally disabled for
1002 inputs and outputs of AC_CONFIG_FILES, AC_CONFIG_HEADERS, and
1003 AC_CONFIG_LINK specified using shell variables. However, if these
1004 variables are used as ${VAR}, and AC_SUBSTed, then Automake will
1005 be able to output rules anyway.
1006 (See the Automake documentation for AC_CONFIG_FILES.)
1008 - $(EXEEXT) is automatically appended to filenames of TESTS
1009 that have been declared as programs in the same Makefile.
1010 This is mostly useful when some check_PROGRAMS are listed in TESTS.
1012 - `-Wportability' has finally been turned on by default for `gnu' and
1013 `gnits' strictness. This means, automake will complain about %-rules
1014 or $(GNU Make functions) unless you switch to `foreign' strictness or
1015 use `-Wno-portability'.
1017 - Automake now uses AC_PROG_MKDIR_P (new in Autoconf 2.60), and uses
1018 $(MKDIR_P) instead of $(mkdir_p) to create directories. The
1019 $(mkdir_p) variable is still defined (to the same value as
1020 $(MKDIR_P)) but should be considered obsolete. If you are using
1021 $(mkdir_p) in some of your rules, please plan to update them to
1022 $(MKDIR_P) at some point.
1024 - AM_C_PROTOTYPES and ansi2knr are now documented as being obsolete.
1025 They still work in this release, but may be withdrawn in a future one.
1027 - Inline compilation rules for gcc3-style dependency tracking are
1030 - Automake installs a "Hello World!" example package in $(docdir).
1031 This example is used throughout the new "Autotools Introduction"
1032 chapter of the manual.
1034 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1038 * Makefile.in bloat reduction:
1040 - Inference rules are used to compile sources in subdirectories when
1041 the `subdir-objects' option is used and no per-target flags are
1042 used. This should reduce the size of some projects a lot, because
1043 Automake used to output an explicit rule for each such object in
1046 - Automake no longer outputs three rules (.o, .obj, .lo) for each
1047 object that must be built with explicit rules. It just outputs
1048 the rules required to build the kind of object considered: either
1049 the two .o and .obj rules for usual objects, or the .lo rule for
1052 * Change to Libtool support:
1054 - Libtool tags are used with libtool versions that support them.
1055 (I.e., with Libtool 1.5 or greater.)
1057 - Automake is now able to handle setups where a libtool library is
1058 conditionally installed in different directories, as in
1061 lib_LTLIBRARIES = liba.la
1063 pkglib_LTLIBRARIES = liba.la
1065 liba_la_SOURCES = ...
1067 * Changes to aclocal:
1069 - aclocal now ensures that AC_DEFUNs and AU_DEFUNs it discovers are
1070 really evaluated, before it decides to include them in aclocal.m4.
1071 This solves nasty problems with conditional redefinitions of
1072 Autoconf macros in /usr/share/aclocal/*.m4 files causing extraneous
1073 *.m4 files to be included in any project using these macros.
1074 (Calls to AC_PROG_EGREP causing libtool.m4 to be included is the
1075 most famous instance of this bug.)
1077 - Do not complain about missing conditionally AC_REQUIREd macros
1078 that are not actually used. In 1.8.x aclocal would correctly
1079 determine which of these macros were really needed (and include
1080 only these in the package); unfortunately it would also require
1081 all of them to be present in order to run. This created
1082 situations were aclocal would not work on a tarball distributing
1083 all the macros it uses. For instance running aclocal on a project
1084 containing only the subset of the Gettext macros in use by the
1085 project did not work, because gettext conditionally requires other
1088 * Portability improvements:
1090 - Tar format can be chosen with the new options tar-v7, tar-ustar, and
1091 tar-pax. The new option filename-length-max=99 helps diagnosing
1092 filenames that are too long for tar-v7. (PR/414)
1094 - Variables aumented with `+=' are now automatically flattened (i.e.,
1095 trailing backslashes removed) and then wrapped around 80 colummns
1096 (adding trailing backslashes). In previous versions, a long series
1102 would result in a single-line definition of VAR that could possibly
1103 exceed the maximum line length of some make implementations.
1105 Non-augmented variables are still output as they are defined in
1110 - Support Fortran 90/95 with the new "fc" and "ppfc" languages.
1111 Works the same as the old Fortran 77 implementation; just replace
1112 F77 with FC everywhere (exception: FFLAGS becomes FCFLAGS).
1113 Requires a version of autoconf which provides AC_PROG_FC (>=2.59).
1115 - Support for conditional _LISP.
1117 - Support for conditional -hook and -local rules (PR/428).
1119 - Diagnose AC_CONFIG_AUX_DIR calls following AM_INIT_AUTOMAKE. (PR/49)
1121 - Automake will not write any Makefile.ins after the first error it
1122 encounters. The previous Makefile.ins (if any) will be left in
1123 place. (Warnings will not prevent output, but remember they can
1124 be turned into errors with -Werror.)
1126 - The restriction that SUBDIRS must contain direct children is gone.
1129 - The manual tells more about SUBDIRS vs. DIST_SUBDIRS.
1130 It also gives an example of nested packages using AC_CONFIG_SUBDIRS.
1132 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1134 Bugs fixed in 1.8.5:
1136 * Long-standing bugs:
1138 - Define DIST_SUBDIRS even when the `no-dist' or `cygnus' options are used
1139 so that `make distclean' and `make maintainer-clean' can work.
1141 - Define AR and ARFLAGS even when only EXTRA_LIBRARIES are defined.
1143 - Fix many rules to please FreeBSD make, which runs commands with `sh -e'.
1145 - Polish diagnostic when no input file is found.
1147 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1149 Bugs fixed in 1.8.4:
1151 * Long-standing bugs:
1153 - Fix AM_PATH_PYTHON to correctly display $PYTHON when it has been
1154 overridden by the user.
1156 - Honor PATH_SEPARATOR in various places of the Automake package, for
1159 - Adjust dependency tracking mode detection to ICC 8.0's new output.
1162 - Fix install-sh so it can install the `mv' binary... using `mv'.
1164 - Fix tru64 dependency tracking for libtool objects.
1166 - Work around Exuberant Ctags when creating a TAGS files in a directory
1167 without files to scan but with subdirectories to include.
1169 * Bugs introduced by 1.8:
1171 - Fix an "internal error" when @LIBOBJS@ is used in a variable that is
1172 not defined in the same conditions as the _LDADD that uses it.
1174 - Do not warn when JAVAROOT is overridden, this is legitimate.
1176 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1178 Bugs fixed in 1.8.3:
1180 * Long-standing bugs:
1182 - Quote filenames in installation rules, in case $DESTDIR, $prefix,
1183 or any of the other *dir variables contain a space.
1185 Please note that Automake does not and cannot support spaces in
1186 filenames that are involved during the build. This change affects
1187 only installation paths, so that `make install' does not bomb out
1188 in packages configured with
1189 ./configure --prefix '/c/Program Files'
1191 - Fix the depfiles output so it works with GNU sed (<4.1) even when
1192 POSIXLY_CORRECT is set.
1194 - Do not AC_SUBST(LIBOBJS) in AM_WITH_REGEX. This macro was unusable
1195 since Autoconf 2.54, which defines LIBOBJS itself.
1197 - Fix a potential (but unlikely) race condition in parallel elisp
1198 builds. (Introduced in 1.7.3.)
1200 - Do not assume that users override _DEPENDENCIES in all conditions
1201 where Automake will try to define them.
1203 - Do not use `mkdir -p' in mkinstalldirs, unless this is GNU mkdir.
1204 Solaris 8's `mkdir -p' is not thread-safe and can break parallel
1207 This fix also affects the $(mkdir_p) variable defined since
1208 Automake 1.8. It will be set to `mkdir -p' only if mkdir is GNU
1209 mkdir, and to `mkinstalldirs' or `install-sh -d' otherwise.
1211 - Secure temporary directory creation in `make distcheck'. (PR/413)
1213 - Do not generate two build rules for `parser.h' when the
1214 parser appears in two different conditionals.
1216 - Work around a Solaris 8 /bin/sh bug in the test for dependency
1217 checking. Usually ./configure will not pick this shell; so this
1218 fix only helps cases where the shell is forced to /bin/sh.
1220 * Bugs introduced by 1.8:
1222 - In some situations (hand-written `m4_include's), aclocal would
1223 call the `File::Spec->rel2abs' method, which was only introduced
1224 in Perl 5.6. This new version reestablish support Perl 5.005.
1226 It is likely that the next major Automake releases will require at
1227 least Perl 5.6. Consider upgrading your development environment
1228 if you are still using the five-year-old Perl 5.005.
1230 - Automake would sometimes fail to define rules for targets listed
1231 in variables defined in multiple conditions. For instance on
1237 it would define only the `a.$(OBJEXT): a.c' rule and omit the
1238 `b.$(OBJEXT): b.c' rule.
1240 * New sections in manual:
1242 - Third-Party Makefiles: how to interface third party Makefiles.
1243 - Upgrading: upgrading packages to newer Automake versions.
1244 - Multiple Outputs: handling tools that produce many outputs.
1246 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1250 * A (well known) portability bug slipped in the changes made to
1251 install-sh in Automake 1.8.1. The broken install-sh would refuse to
1252 install anything on Tru64.
1254 * Fix install rules for conditionally built python files. (This never
1257 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1261 * Bugs introduced by 1.8:
1263 - Fix Config.pm import error with old Perl versions (at least
1264 5.005_03). One symptom is that aclocal could not find its macro
1267 - Automake 1.8 used `mkdir -m 0755 -p --' to ensure that directories
1268 created by `make install' are always world readable, even if the
1269 installer happens to have an overly restrictive umask (e.g. 077).
1270 This was a mistake and has been reverted. There are at least two
1271 reasons why we must not use `-m 0755':
1272 - it causes special bits like SGID to be ignored,
1273 - it may be too restrictive (some setups expect 775 directories).
1275 - Fix aclocal to honor definitions located in files which have been
1276 m4_included manually. aclocal 1.8 had been updated to check
1277 m4_included files for new requirements, but forgot that these
1278 m4_included files can also provide new definitions.
1280 Note that if you have such a setup, we recommend you get rid of
1281 it. In the past, there was a reason to m4_include files manually:
1282 aclocal used to duplicate entire M4 files into aclocal.m4, even
1283 files that were distributed. Some packages were therefore
1284 m4_including the distributed file directly, and playing some
1285 tricks to ensure aclocal would not copy that file to aclocal.m4,
1286 in order to limit the amount of duplication. Since aclocal 1.8.x
1287 will precisely output m4_includes for local M4 files, we recommend
1288 that you clean up your setup, removing all manual m4_includes and
1289 letting aclocal output them.
1291 - Output detailed menus in the Info version if the Automake manual,
1292 so that Emacs can locate the indexes.
1294 - configure.ac and configure were listed twice in DIST_COMMON (an
1295 internal variable where Automake lists configury files to
1296 distribute). This was harmless, but unaesthetic.
1298 - Use `chmod a-w' instead of `chmod -w' as the latter honors umask.
1299 This was an issue only in the Automake package itself, not in
1302 - Automake assumed that all AC_CONFIG_LINKS arguments had the form
1303 DEST:SRC. This was wrong, as some packages do
1304 AC_CONFIG_LINKS($computedlinks). This version no longer abort in
1307 - Contrary to mkinstalldirs, $(mkdir_p) was expecting exactly one
1308 argument. This caused two kinds of failures:
1309 - Rules installing data in a conditionally defined directory
1310 failed when that directory was undefined. In this case no
1311 argument was supplied.
1312 - `make installdirs' failed, because several directories were
1313 passed to $(mkdir_p). This was an issue only on platform
1314 were $(mkdir_p) is implemented with `install-sh -d'.
1315 $(mkdir_p) as been changed to accept 0 or more arguments, as
1318 * Long-standing bugs:
1320 - Fix an unexpected diagnostic occurring when users attempt
1321 to override some internal variables that Automake appends to.
1323 - aclocal now scans configure.ac for macro definitions (PR/319).
1325 - Fix a portability issue with OSF1/Tru64 Make. If a directory
1326 distributes files which are outside itself (this usually occurs
1327 when using AC_CONFIG_AUX_DIR([../dir]) to use auxiliary files
1328 from a parent package), then `make distcheck' fails due to an
1329 optimization performed by OSF1/Tru64 Make in its VPATH handling.
1330 (tests/subpkg2.test failure)
1332 - Fix another portability issue with Sun and OSF1/Tru64 Make.
1333 In a VPATH-build configuration, `make install' would install
1334 nobase_ files to wrong locations.
1336 - Fix a Perl `uninitialized value' diagnostic occurring when
1337 automake complains that a Texinfo file does not have a
1338 @setfilename statement.
1340 - Erase config.status.lineno during `make distclean'. This file
1341 can be created by config.status. Automake already knew about
1342 configure.lineno, but forgot config.status.lineno.
1344 - Distribute all files, even those which are built and installed
1345 conditionally. This change affects files listed in conditionally
1346 defined *_HEADERS and *_PYTHON variable (unless they are nodist_*)
1347 as well as those listed in conditionally defined dist_*_DATA,
1348 dist_*_JAVA, dist_*_LISP, and dist_*_SCRIPTS variables.
1350 - Fix AM_PATH_LISPDIR to avoid \? in sed regular expressions; it
1351 doesn't conform to POSIX.
1353 - Normalize help strings for configure variables and options added
1358 - Check for python2.4 in AM_PATH_PYTHON.
1360 * Spurious failures in test suite:
1362 - tests/libtool5.test, tests/ltcond.test, tests/ltcond2.test,
1363 tests/ltconv.test: fix failures with CVS Libtool.
1364 - tests/aclocal6.test: fix failure if autom4te.cache is disabled.
1365 - tests/txinfo24.test, tests/txinfo25.test, tests/txinfo28.test:
1366 fix failures with old Texinfo versions.
1368 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1374 - The NEWS file is more verbose.
1378 - Autoconf 2.58 or greater is required.
1382 - Default source file names in the absence of a _SOURCES declaration
1383 are made by removing any target extension before appending `.c', so
1384 to make the libtool module `foo.la' from `foo.c', you only need to
1387 lib_LTLIBRARIES = foo.la
1388 foo_la_LDFLAGS = -module
1390 For backward compatibility, foo_la.c will be used instead of
1391 foo.c if this file exists or is the explicit target of a rule.
1392 However -Wobsolete will warn about this deprecated naming.
1394 - AR's `cru' flags are now set in a global ARFLAGS variable instead
1395 of being hard-coded in each $(AR) invocation, so they can be
1396 substituted from configure.ac. This has been requested by people
1397 dealing with non-POSIX ar implementations.
1399 - New warning option: -Woverride. This will warn about any user
1400 target or variable definitions which override Automake
1403 - Texinfo rules back up and restore info files when makeinfo fails.
1405 - Texinfo rules now support the `html' target.
1406 Running this requires Texinfo 4.0 or greater.
1408 `html' is a new recursive target, so if your package mixes
1409 hand-crafted `Makefile.in's with Automake-generated
1410 `Makefile.in's, you should adjust the former to support (or
1411 ignore) this target so that `make html' recurses successfully. If
1412 you had a custom `html' rule in your `Makefile.am', it's better to
1413 rename it as `html-local', otherwise your rule will override
1414 Automake's new rule (you can check that by running `automake
1415 -Woverride') and that will stop the recursion to subdirectories.
1417 Last but not least, this `html' rule is declared PHONY, even when
1418 overridden. Fortunately, it appears that few packages use a
1419 non-PHONY `html' rule.
1421 - Any file which is m4_included from configure.ac will appear as a
1422 configure and Makefile.in dependency, and will be automatically
1425 - The rules for rebuilding Makefiles and Makefile.ins will now
1426 rebuild all Makefiles and all Makefile.ins at once when one of
1427 configure's dependencies has changed. This is considerably faster
1428 than previous implementations, where config.status and automake
1429 were run separately in each directory (this still happens when you
1430 change a Makefile.am locally, without touching configure.ac or
1431 friends). Doing this also solves a longstanding issue: these
1432 rebuild rules failed to work when adding new directories to the
1433 tree, forcing you to run automake manually.
1435 - For similar reasons, the rules to rebuild configure,
1436 config.status, and aclocal.m4 are now defined in all directories.
1437 Note that if you were using the CONFIG_STATUS_DEPENDENCIES and
1438 CONFIGURE_DEPENDENCIES (formerly undocumented) variables, you
1439 should better define them in all directories. This is easily done
1440 using an AC_SUBST (make sure you prefix these dependencies with
1441 $(top_srcdir) since this variable will appear at different
1442 levels of the build tree).
1444 - aclocal will now use `m4_include' instead of copying local m4
1445 files into aclocal.m4. (Local m4 files are those you ship with
1446 your project, other files will be copied as usual.)
1448 Because m4_included files are automatically distributed, it means
1449 for most projects there is no point in EXTRA_DISTing the list of
1450 m4 files which are used. (You can probably get rid of
1451 m4/Makefile.am if you had one.)
1453 - aclocal will avoid touching aclocal.m4 when possible, so that
1454 Autom4te's cache isn't needlessly invalidated. This behavior can
1455 be switched off with the new `--force' option.
1457 - aclocal now uses Autoconf's --trace to detect macros which are
1458 actually used and will no longer include unused macros simply
1459 because they where mentioned. This was often the case for macros
1460 called conditionally.
1462 - New options no-dist and no-dist-gzip.
1464 - compile, depcomp, elisp-comp, install-sh, mdate-sh, mkinstalldirs,
1465 py-compile, and ylwrap, now all understand --version and --help.
1467 - Automake will now recognize AC_CONFIG_LINKS so far as removing created
1468 links as part of the distclean target and including source files in
1471 - AM_PATH_PYTHON now supports ACTION-IF-FOUND and ACTION-IF-NOT-FOUND
1472 argument. The latter can be used to override the default behavior
1473 (which is to abort).
1475 - Automake will exit with $? = 63 on version mismatch. (So does
1476 Autoconf 2.58) missing knows this, and in this case it will
1477 emulate the tools as if they were absent. Because older versions
1478 of Automake and Autoconf did not use this exit code, this change
1479 will only be useful in projects generated with future versions of
1482 - When using AC_CONFIG_FILES with multiple input files, Automake
1483 generates the first ".in" input file for which a ".am" exists.
1484 (Former versions would try to use only the first input file.)
1486 - lisp_DATA is now allowed. If you are using the empty ELCFILES
1487 idiom to disable byte-compilation of lisp_LISP files, it is
1488 recommended that you switch to using lisp_DATA. Note that
1489 this is not strictly equivalent: lisp_DATA will install elisp
1490 files even if emacs is not installed, while *_LISP do not
1491 install anything unless emacs is found.
1493 - Makefiles will prefer `mkdir -p' over mkinstalldirs if it is
1494 available. This selection is achieved through the Makefile
1495 variable $(mkdir_p) that is set by AM_INIT_AUTOMAKE to either
1496 `mkdir -m 0755 -p --', `$(mkinstalldirs) -m 0755', or
1497 `$(install_sh) -m 0755 -d'.
1501 - Because `mkdir -p' is available on most platforms, and we can use
1502 `install-sh -d' when it is not, the use of the mkinstalldirs
1503 script is being phased out. `automake --add-missing' no longer
1504 installs it, and if you remove mkinstalldirs from your package,
1505 automake will define $(mkinstalldirs) as an alias for $(mkdir_p).
1507 Gettext 0.12.1 still requires mkinstalldirs. Fortunately
1508 gettextize and autopoint will install it when needed. Automake
1509 will continue to define the $(mkinstalldirs) and to distribute
1510 mkinstalldirs when this script is in the source tree.
1512 - AM_PROG_CC_STDC is now empty. The content of this macro was
1513 merged in AC_PROG_CC. If your code uses $am_cv_prog_cc_stdc, you
1514 should adjust it to use $ac_cv_prog_cc_stdc instead. (This
1515 renaming should be safe, even if you have to support several,
1516 versions of Automake, because AC_PROG_CC defines this variable
1517 since Autoconf 2.54.)
1519 - Some users where using the undocumented ACLOCAL_M4_SOURCES
1520 variable to override the aclocal.m4 dependencies computed
1521 (inaccurately) by older versions of Automake. Because Automake
1522 now tracks configure's m4 dependencies accurately (see m4_include
1523 above), the use of ACLOCAL_M4_SOURCES should be considered
1524 obsolete and will be flagged as such when running `automake
1529 - Defining programs conditionally using Automake conditionals no
1530 longer leads to a combinatorial explosion. The following
1531 construct used to be troublesome when used with dozens of
1546 Likewise for _SOURCES, _LDADD, and _LIBADD variables.
1548 - Due to implementation constraints, previous versions of Automake
1549 proscribed multiple conditional definitions of some variables
1559 All _PROGRAMS, _LDADD, and _LIBADD variables were affected.
1560 This restriction has been lifted, and these variables now
1561 support multiple conditional definitions as do other variables.
1563 - Cleanup the definitions of $(distdir) and $(top_distdir).
1564 $(top_distdir) now points to the root of the distribution
1565 directory created during `make dist', as it did in Automake 1.4,
1566 not to the root of the build tree as it did in intervening
1567 versions. Furthermore these two variables are now only defined in
1568 the top level Makefile, and passed to sub-directories when running
1571 - The --no-force option now correctly checks the Makefile.in's
1572 dependencies before deciding not to update it.
1574 - Do not assume that make files are called Makefile in cleaning rules.
1576 - Update .info files in the source tree, not in the build tree. This
1577 is what the GNU Coding Standard recommend. Only Automake 1.7.x
1578 used to update these files in the build tree (previous versions did
1579 it in the source tree too), and it caused several problems, varying
1580 from mere annoyance to portability issues.
1582 - COPYING, COPYING.LIB, and COPYING.LESSER are no longer overwritten
1583 when --add-missing and --force-missing are used. For backward
1584 compatibility --add-missing will continue to install COPYING (in
1585 `gnu' strictness) when none of these three files exist, but this
1586 use is deprecated: you should better choose a license yourself and
1587 install it once for all in your source tree (and in your code
1590 - Fix ylwrap so that it does not overwrite header files that haven't
1591 changed, as the inline rule already does.
1593 - User-defined rules override automake-defined rules for the same
1594 targets, even when rules do not have commands. This is not new
1595 (and was documented), however some of the automake-generated
1596 rules have escaped this principle in former Automake versions.
1597 Rules for the following targets are affected by this fix:
1599 clean, clean-am, dist-all, distclean, distclean-am, dvi, dvi-am,
1600 info, info-am, install-data-am, install-exec-am, install-info,
1601 install-info-am, install-man, installcheck-am, maintainer-clean,
1602 maintainer-clean-am, mostlyclean, mostlyclean-am, pdf, pdf-am,
1603 ps, ps-am, uninstall-am, uninstall-info, uninstall-man
1605 Practically it means that an attempt to supplement the dependencies
1606 of some target, as in
1608 clean: my-clean-rule
1610 will now *silently override* the automake definition of the
1611 rule for this target. Running `automake -Woverride' will diagnose
1612 all such overriding definitions.
1614 It should be noted that almost all these targets support a *-local
1615 variant that is meant to supplement the automake-defined rule
1616 (See node `Extending' in the manual). The above rule should
1619 clean-local: my-clean-rule
1621 These *-local targets have been documented since at least
1622 Automake 1.2, so you should not fear the change if you have
1623 to support multiple automake versions.
1627 - The Automake manual is now distributed under the terms of the GNU FDL.
1629 - Targets dist-gzip, dist-bzip2, dist-tarZ, dist-zip are always defined.
1631 - core dumps are no longer removed by the cleaning rules. There are
1632 at least three reasons for this:
1633 1. These files should not be created by any build step,
1634 so their removal do not fit any of the cleaning rules.
1635 Actually, they may be precious to the developer.
1636 2. If such file is created during a build, then it's clearly a
1637 bug Automake should not hide. Not removing the file will
1638 cause `make distcheck' to complain about its presence.
1639 3. Operating systems have different naming conventions for
1640 core dump files. A core file on one system might be a
1641 completely legitimate data file on another system.
1643 - RUNTESTFLAGS, CTAGSFLAGS, ETAGSFLAGS, JAVACFLAGS are no longer
1644 defined by Automake. This means that any definition in the
1645 environment will be used, unless overridden in the Makefile.am or
1646 on the command line. The old behavior, where these variables were
1647 defined empty in each Makefile, can be obtained by AC_SUBSTing or
1648 AC_ARG_VARing each variable from configure.ac.
1650 - CONFIGURE_DEPENDENCIES and CONFIG_STATUS_DEPENDENCIES are now
1651 documented. (The is not a new feature, these variables have
1652 been there since at least Automake 1.4.)
1654 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1656 Bugs fixed in 1.7.9:
1657 * Fix install-strip to work with nobase_ binaries.
1658 * Fix renaming of #line directives in ylwrap.
1659 * Rebuild with Autoconf 2.59. (1.7.8 was not installable with pdksh.)
1661 Bugs fixed in 1.7.8:
1662 * Remove spurious blank lines in cleaning rules introduced in 1.7.7.
1663 * Fix detection of Debian's install-info, broken since version 1.5.
1664 (Debian bug #213524).
1665 * Honor -module if it appears in AM_LDFLAGS (i.e., relax name checking)
1666 This was only done for libfoo_LDFLAGS and LDFLAGS in previous versions.
1668 Bugs fixed in 1.7.7:
1669 * The implementation of automake's --no-force option is unreliable,
1670 so this option is ignored in this version. A real fix will appear in
1671 Automake 1.8. (Debian Bug #206299)
1672 * AM_PATH_PYTHON: really check the whole list of interpreters if no
1673 argument is given. (PR/399)
1674 * Do not warn about leading `_' in variable names, even with -Wportability.
1675 * Support user redefinitions of TEXINFO_TEX.
1676 * depcomp: support AIX Compiler version 6.
1677 * Fix missing rebuilds during `make dist' with BSD make.
1678 (Could produce tarballs containing out-of-date files.)
1679 * Resurrect multilib support.
1680 * Noteworthy manual updates:
1681 - Extending aclocal: how to write m4 macros that won't trigger warnings
1683 - A Shared Library: Rewrite and split into subsections.
1685 Bugs fixed in 1.7.6:
1686 * Fix depcomp's icc mode for ICC 7.1.
1687 * Diagnose calls to AC_CONFIG_FILES and friends with not enough arguments.
1688 * Fix maintainer-clean's removal of autom4te.cache in VPATH builds.
1689 * Fix AM_PATH_LISPDIR to work with POSIXLY_CORRECT=1.
1690 * Fix the location reported in some diagnostics related to AUTOMAKE_OPTIONS.
1691 * Remove Latin-1 characters from elisp-comp.
1692 * Update the manual's @dircategory to match the Free Software Directory.
1694 Bugs fixed in 1.7.5:
1695 * Update install-sh's license to remove an advertising clause.
1696 (Debian bug #191717)
1697 * Fix a bug introduced in 1.7.4, related to BUILT_SOURCE handling,
1698 that caused invalid Makefile.ins to be generated.
1699 * Make sure AM_MAKE_INCLUDE doesn't fail when a `doit' file exists.
1700 * New FAQ entry: renamed objects.
1702 Bugs fixed in 1.7.4:
1703 * Tweak the TAGS rule to support Exuberant Ctags (in addition to
1704 the Emacs implementation)
1705 * Fix output of aclocal.m4 dependencies in subdirectories.
1706 * Use `mv -f' instead of `mv' in fastdep rules.
1707 * Upgrade mdate-sh to work on OS/2.
1708 * Don't byte-compile elisp files when ELCFILES is set empty.
1709 (this documented feature was broken by 1.7.3)
1710 * Diagnose trailing backslashes on last line of Makefile.am.
1711 * Diagnose whitespace following trailing backslashes.
1712 * Multiple tests are now correctly supported in DEJATOOL. (PR/388)
1713 * Fix rebuilt rules for AC_CONFIG_FILES([Makefile:Makefile.in:Makefile.bot])
1715 * `make install' will build `BUILT_SOURCES' first.
1716 * Minor documentation fixes.
1718 Bugs fixed in 1.7.3:
1719 * Fix stamp files numbering (when using multiple AC_CONFIG_HEADERS).
1720 * Query distutils for `pythondir' and `pythonexecdir', instead of
1721 using an hardcoded path. This should allow builds on 64-bit
1722 distributions that usually use lib64/ instead of lib/.
1723 * AM_PATH_PYTHON will also search for python2.3.
1724 * elisp files are now built all at once instead of one by one. Besides
1725 incurring a speed-up, this is required to support interdependent elisp files.
1726 * Support for DJGPP:
1727 - `make distcheck' will now work in `_inst/' and `_build' instead
1728 of `=inst/' and `=build/'
1729 - use `_dirstamp' when the file-system doesn't support `.dirstamp'
1730 - install/uninstall `*.i[0-9][0-9]'-style info files
1731 - more changes that affect only the Automake package (not its output)
1732 * Fix some incompatibilities with upcoming perl-5.10.
1733 * Properly quote AC_PACKAGE_TARNAME and AC_PACKAGE_VERSION when defining
1734 PACKAGE and VERSION.
1736 - dashmstdout and dashXmstdout modes: don't use `-o /dev/null', this
1737 is troublesome with gcc and Solaris compilers. (PR/385)
1738 - makedepend mode: work with Libtool. (PR/385 too)
1740 * better support for unusual gettext setups, such as multiple po/ directories
1742 - Flag missing po/ and intl/ directories as warnings, not errors.
1743 - Disable these warnings if po/ does not exist.
1744 * Noteworthy manual updates:
1746 - Document how AC_CONFIG_AUX_DIR interacts with missing files.
1748 - Document `AM_YFLAGS = -d'. (PR/382)
1750 Bugs fixed in 1.7.2:
1751 * Fix installation and uninstallation of Info files built in subdirectories.
1752 * Do not run `./configure --with-included-gettext' during `make distcheck'
1753 if AM_GNU_GETTEXT([external]) is used.
1754 * Correctly uninstall renamed man pages.
1755 * Do not strip escaped newline in variables defined in one condition
1756 and augmented in another condition.
1757 * Fix ansi2knr rules for LIBOBJS sources.
1758 * Clean all known Texinfo index files, not only those which appear to
1759 be used, because we cannot know which indexes are used in included files.
1760 (PR/375, Debian Bug #168671)
1761 * Honor only the first @setfilename seen in a Texinfo file.
1762 * Treat "required file X not found" diagnostics as errors (exit status 1).
1763 * Don't complain that a required file is not found when it is a Makefile
1765 * Don't use single suffix inference rules when building `.info'-less
1766 Info files, for the sake of Solaris make.
1767 * The `check' target now depends on `$(BUILT_SOURCES)'. (PR/359)
1768 * Recognize multiple inference rules such as `.a.b .c.d:'. (PR/371)
1769 * Warn about multiple inference rules when -Wportability is used. (PR/372)
1770 * Fix building of deansified files from subdirectories. (PR/370)
1771 * Add missing `fi' in the .c->.obj rules.
1772 * Improve install-sh to work even when names contain spaces or certain
1773 (but not all) shell metachars.
1774 * Fix the following spurious failures in the test suite:
1775 depcomp2.test, gnits2.test, gnits3.test, python3.test, texinfo13.test
1776 * Noteworthy manual updates:
1777 - Augment the section about BUILT_SOURCES.
1778 - Mention that AM_PROG_CC_STDC is a relic that is better avoided today.
1780 Bugs fixed in 1.7.1:
1781 * Honor `ansi2knr' for files built in subdirectories, or using per-targets
1783 * Aclocal should now recognize macro names containing parentheses, e.g.
1784 AC_DEFUN([AC_LANG_PREPROC(Fortran 90)], [...]).
1785 * Erase *.sum and *.log files created by DejaGnu, during `make distclean'.
1787 * Install Python files even if they were built. (PR/369)
1788 * Have stamp-vti dependent upon configure instead of configure.ac, as the
1789 version might not be defined in the latter. (PR/358)
1790 * Reorder arguments passed to a couple of commands, so things works
1791 when POSIXLY_CORRECT=1.
1792 * Fix a regex that can cause Perl to segfault on large input.
1794 * Fix distribution of packages that have some sources defined conditionally,
1795 as in the `Conditional compilation using Automake conditionals' example
1797 * Fix spurious test suite failures on IRIX.
1798 * Don't report a required variable as undefined if it has been
1799 defined conditionally for the "right" conditions.
1800 * Fix cleaning of the /tmp subdirectory used by `make distcheck', in case
1801 `make distcheck' fails.
1802 * Fix distribution of included Makefile fragment, so we don't create
1803 spurious directories in the distribution. (PR/366)
1804 * Don't complain that a target lacks `.$(EXEEXT)' when it has it.
1807 * Autoconf 2.54 is required.
1808 * `aclocal' and `automake' will no longer warn about obsolete
1809 configure macros. This is done by `autoconf -Wobsolete'.
1810 * AM_CONFIG_HEADER, AM_SYS_POSIX_TERMIOS and
1811 AM_HEADER_TIOCGWINSZ_NEEDS_SYS_IOCTL are obsolete (although still
1812 supported). You should use AC_CONFIG_HEADERS, AC_SYS_POSIX_TERMIOS,
1813 and AC_HEADER_TIOCGWINSZ instead. `autoupdate' can upgrade
1814 `configure.ac' for you.
1815 * Support for per-program and per-library `_CPPFLAGS'.
1816 * New `ctags' target (builds CTAGS files).
1817 * Support for -Wmumble and -Wno-mumble, where mumble is a warning category
1818 (see `automake --help' or the manual for a list of them).
1819 * Honor the WARNINGS environment variable.
1820 * Omit the call to depcomp when using gcc3: call the compiler directly.
1821 * A new option, std-options, tests that programs support --help and --version
1822 when `make installcheck' is run. This is enabled by --gnits.
1823 * Texinfo rules now support the `ps' and `pdf' targets.
1824 * Info files are now created in the build directory, not the source directory.
1825 * info_TEXINFOS supports files in subdirectories (this requires Texinfo 4.1
1827 * `make distcheck' will enforce DESTDIR support by attempting
1829 * `+=' can be used in conditionals, even if the augmented variable
1830 was defined for another condition.
1831 * Makefile fragments (inserted with `include') are always distributed.
1832 * Use Autoconf's --trace interface to inspect configure.ac and get
1833 a more accurate view of it.
1834 * Add support for extending aclocal's default macro search path
1835 using a `dirlist' file within the aclocal directory.
1836 * automake --output-dir is deprecated.
1837 * The part of the distcheck target that checks whether uninstall actually
1838 removes all installed files has been moved in a separate target,
1839 distuninstallcheck, so it can be overridden easily.
1843 * Support for AM_INIT_GETTEXT([external])
1844 * Bug fixes, including:
1845 - Fix Automake's own `make install' so it works even if `ln' doesn't.
1846 - nobase_ programs and scripts honor --program-transform correctly.
1847 - Erase configure.lineno during `make distclean'.
1848 - Erase YACC and LEX outputs during `make maintainer-clean'.
1851 * Many bug fixes, including:
1852 - Requiring the current version works.
1853 - Fix "$@" portability issues (for Zsh).
1854 - Fix output of dummy dependency files in presence of post-processed
1856 - Don't compute dependencies in background to avoid races with libtool.
1857 - Fix handling of _OBJECTS variables for targets sharing source variables.
1858 - Check dependency mode for Java when AM_PROG_GCJ is used.
1861 * automake --output-dir is deprecated
1862 * Many bug fixes, including:
1863 - Don't choke on AM_LDFLAGS definitions.
1864 - Clean libtool objects from subdirectories.
1865 - Allow configure variables with reserved suffix and unknown prefix
1866 (e.g. AC_SUBST(mumble_LDFLAGS) when 'mumble' is not a target).
1867 - Fix the definition of AUTOMAKE and ACLOCAL in configure.
1870 * Autoconf 2.52 is required.
1871 * automake no longer run libtoolize.
1872 This is the job of autoreconf (from GNU Autoconf).
1873 * `dist' generates all the archive flavors, as did `dist-all'.
1874 * `dist-gzip' generates the Gzip tar file only.
1875 * Combining Automake Makefile conditionals no longer lead to a combinatorial
1876 explosion. Makefile.in's keep a reasonable size.
1877 * AM_FUNC_ERROR_AT_LINE, AM_FUNC_STRTOD, AM_FUNC_OBSTACK, AM_PTRDIFF_T
1878 are no longer shipped, since Autoconf 2.52 provides them (both as AM_
1880 * `#line' of Lex and Yacc files are properly set.
1881 * EXTRA_DIST can contain generated directories.
1882 * Support for dot-less extensions in suffix rules.
1883 * The part of the distcheck target that checks whether distclean actually
1884 cleans all built files has been moved in a separate target, distcleancheck,
1885 so it can be overridden easily.
1886 * `make distcheck' will pass additional options defined in
1887 $(DISTCHECK_CONFIGURE_FLAGS) to configure.
1888 * Fixed CDPATH portability problems, in particular for MacOS X.
1889 * Fixed handling of nobase_ targets.
1890 * Fixed support of implicit rules leading to .lo objects.
1891 * Fixed late inclusion of --add-missing files (e.g. depcomp) in DIST_COMMON
1892 * Added uninstall-hook target
1893 * `AC_INIT AM_INIT_AUTOMAKE(tarname,version)' is an obsolete construct.
1894 You can now use `AC_INIT(pkgname,version) AM_INIT_AUTOMAKE' instead.
1895 (Note that "pkgname" is not "tarname", see the manual for details.)
1896 It is also possible to pass a list of global Automake options as
1897 first argument to this new form of AM_INIT_AUTOMAKE.
1898 * Compiler-based assembler is now called `CCAS'; people expected `AS'
1899 to be a real assembler.
1900 * AM_INIT_AUTOMAKE will set STRIP itself when it needs it. Adding
1901 AC_CHECK_TOOL([STRIP], [strip]) manually is no longer required.
1902 * aclocal and automake are also installed with the version number
1903 appended, and some of the install directory names have changed.
1904 This lets you have multiple versions installed simultaneously.
1905 * Support for parsers and lexers in subdirectories.
1908 * Support for `configure.ac'.
1909 * Support for `else COND', `endif COND' and negated conditions `!COND'.
1910 * `make dist-all' is much faster.
1911 * Allows '@' AC_SUBSTs in macro names.
1912 * Faster AM_INIT_AUTOMAKE (requires update of `missing' script)
1913 * User-side dependency tracking. Developers no longer need GNU make
1915 * Uses DIST_SUBDIRS in some situations when SUBDIRS is conditional
1916 * Most files are correctly handled if they appear in subdirs
1917 For instance, a _DATA file can appear in a subdir
1918 * GNU tar is no longer required for `make dist'
1919 * Added support for `dist_' and `nodist_' prefixes
1920 * Added support for `nobase_' prefix
1921 * Compiled Java support
1922 * Support for per-executable and per-library compilation flags
1926 * Added support for the Fortran 77 programming language.
1927 * Re-indexed the Automake Texinfo manual.
1928 * Added `AM_FOOFLAGS' variable for each compiler invocation;
1929 e.g. AM_CFLAGS can be used in Makefile.am to set C compiler flags
1930 * Support for latest autoconf, including support for objext
1931 * Can now put `.' in SUBDIRS to control build order
1932 * `include' command and `+=' support for macro assignment
1933 * Dependency tracking no long susceptible to deleted header file problem
1934 * Maintainer mode now a conditional. @MAINT@ is now an anachronism.
1939 * Better Cygwin32 support
1940 * Support for suffix rules with _SOURCES variables
1941 * New options `readme-alpha' and `check-news'; Gnits mode sets these
1942 * @LEXLIB@ no longer required when lex source seen
1943 Lex support in `missing', and new lex macro. Update your missing script.
1944 * Built-in support for assembly
1945 * aclocal gives error if `AM_' macro not found
1946 * Passed YFLAGS, not YACCFLAGS, to yacc
1947 * AM_PROG_CC_STDC does not have to come before AC_PROG_CPP
1948 * Dependencies computed as a side effect of compilation
1949 * Preliminary support for Java
1950 * DESTDIR support at "make install" time
1951 * Improved ansi2knr support; you must use the latest ansi2knr.c (included)
1955 * Better DejaGnu support
1956 * Added no-installinfo option
1957 * Added Emacs Lisp support
1958 * Added --no-force option
1959 * Included `aclocal' program
1960 * Automake will now generate rules to regenerate aclocal.m4, if appropriate
1961 * Now uses `AM_' macro names everywhere
1962 * ansi2knr option can have directory prefix (eg `../lib/ansi2knr')
1963 ansi2knr now works correctly on K&R sources
1964 * Better C++, yacc, lex support
1965 * Will compute _DEPENDENCIES variables automatically if not supplied
1966 * Will interpolate $(...) and ${...} when examining contents of a variable
1967 * .deps files now in build directory, not source directory; dependency
1968 handling generally rewritten
1969 * DATA, MANS and BUILT_SOURCES no longer included in distribution
1970 * can now put config.h into a subdir
1971 * Added dist-all target
1972 * Support for install-info program (see texinfo 3.9)
1973 * Support for "yacc -d"
1974 * configure substitutions are automatically discovered and included
1975 in generated Makefile.in
1976 * Special --cygnus mode
1977 * OMIT_DEPENDENCIES can now hold list of dependencies to be omitted
1978 when making distribution. Some dependencies are auto-ignored.
1979 * Changed how libraries are specified in _LIBRARIES variable
1980 * Full libtool support, from Gord Matzigkeit
1981 * No longer have to explicitly touch stamp-h when using AC_CONFIG_HEADER;
1982 AM_CONFIG_HEADER handles it automatically
1983 * Texinfo output files no longer need .info extension
1984 * Added `missing' support
1986 * Conditionals in Makefile.am, from Ian Taylor
1990 * distcheck target runs install and installcheck targets
1991 * Added preliminary support for DejaGnu.
1996 * More libtool fixes from Gord Matzigkeit; libtool support is still
1998 * Added support for jm_MAINTAINER_MODE
2000 * New "distcheck" target
2004 * mkinstalldirs and mdate-sh now appear in directory specified by
2006 * Removed DIST_SUBDIRS, DIST_OTHER
2007 * AC_ARG_PROGRAM only required when an actual program exists
2008 * dist-hook target now run before distribution packaged up; idea from
2009 Dieter Baron. Other hooks exist, too.
2010 * Preliminary (unfinished) support for libtool
2011 * Added short option names.
2012 * Better "dist" support when gluing together multiple packages
2016 * Documentation updates (many from François Pinard)
2017 * strictness `normal' now renamed to `foreign'
2018 * Renamed --install-missing to --add-missing
2019 * Now handles AC_CONFIG_AUX_DIR
2020 * Now handles TESTS macro
2021 * DIST_OTHER renamed to EXTRA_DIST
2022 * DIST_SUBDIRS is deprecated
2023 * @ALLOCA@ and @LIBOBJS@ now work in _LDADD variables
2024 * Better error messages in many cases
2025 * Program names are canonicalized
2026 * Added "check" prefix; from Gord Matzigkeit
2030 * configure.in scanner knows about AC_PATH_XTRA, AC_OUTPUT ":" syntax
2031 * Beginnings of a test suite
2032 * Automatically adds -I options for $(srcdir), ".", and path to config.h
2033 * Doesn't print anything when running
2034 * Beginnings of MAINT_CHARSET support
2035 * Can specify version in AUTOMAKE_OPTIONS
2036 * Most errors recognizable by Emacs' M-x next-error
2037 * Added --verbose option
2038 * All "primary" variables now obsolete; use EXTRA_PRIMARY to supply
2039 configure-generated names
2040 * Required macros now distributed in aclocal.m4
2042 * --strictness=gnu is default
2046 * More sophisticated configure.in scanning; now understands ALLOCA and
2047 LIBOBJS directly, handles AC_CONFIG_HEADER more precisely, etc.
2048 * TEXINFOS and MANS now obsolete; use info_TEXINFOS and man_MANS instead.
2049 * CONFIG_HEADER variable now obsolete
2050 * Can handle multiple Texinfo sources
2051 * Allow hierarchies deeper than 2. From Gord Matzigkeit.
2052 * HEADERS variable no longer needed; now can put .h files directly into
2053 foo_SOURCES variable.
2054 * Automake automatically rebuilds files listed in AC_OUTPUT. The
2055 corresponding ".in" files are included in the distribution.
2058 * Added --gnu and --gnits options
2059 * More standards checking
2061 * Cleaned up 'dist' targets
2062 * Added AUTOMAKE_OPTIONS variable and several options
2063 * Now scans configure.in to get some information (preliminary)
2066 * Works with Perl 4 again
2069 * Added --install-missing option.
2070 * Pretty-prints generated macros and rules
2071 * Comments in Makefile.am are placed more intelligently in Makefile.in
2072 * Generates .PHONY target
2073 * Rule or macro in Makefile.am now overrides contents of Automake file
2074 * Substantial cleanups from François Pinard
2078 * Works with Perl 4 again.
2081 * New uniform naming scheme.
2082 * --strictness option
2084 * '.c' files corresponding to '.y' or '.l' files are automatically
2086 * Many bug fixes and cleanups
2089 * Allow objects to be conditionally included in libraries via lib_LIBADD.
2092 * Bug fixes in 'clean' code.
2093 * Now generates 'installdirs' target.
2094 * man page installation reworked.
2095 * 'make dist' no longer re-creates all Makefile.in's.
2098 * Reimplemented in Perl
2099 * Added --amdir option (for debugging)
2100 * Texinfo support cleaned up.
2101 * Automatic de-ANSI-fication cleaned up.
2102 * Cleaned up 'clean' targets.
2105 * Automatic dependency tracking
2106 * More documentation
2107 * New variables DATA and PACKAGEDATA
2108 * SCRIPTS installed using $(INSTALL_SCRIPT)
2109 * No longer uses double-colon rules
2111 * Changes in advance of internationalization
2115 Copyright (C) 1995-2012 Free Software Foundation, Inc.
2117 This program is free software; you can redistribute it and/or modify
2118 it under the terms of the GNU General Public License as published by
2119 the Free Software Foundation; either version 2, or (at your option)
2122 This program is distributed in the hope that it will be useful,
2123 but WITHOUT ANY WARRANTY; without even the implied warranty of
2124 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
2125 GNU General Public License for more details.
2127 You should have received a copy of the GNU General Public License
2128 along with this program. If not, see <http://www.gnu.org/licenses/>.