3 * WARNING: Future backward-incompatibilities!
5 - Future versions of Automake will likely drop support for the
6 long-deprecated 'configure.in' name for the Autoconf input file.
7 You are advised to use the recommended name 'configure.ac' instead.
9 - Autoconf 2.65 or later will be required by the next major Automake
10 version (1.13). Until now, Automake has required Autoconf version
13 - Starting from the next major Automake version (1.13), the rules to
14 build pdf, ps and dvi output from Texinfo input will use the '--tidy'
15 option by default. Since such an option was introduced in Texinfo
16 4.9, this means that Makefiles generated by future Automake versions
17 will require at least that version of Texinfo.
19 - Starting from the next major Automake version (1.13), the parallel
20 testsuite harness (previously only enabled by the 'parallel-tests'
21 option) will become the default one; the older serial testsuite
22 harness will still be available through the use of the 'serial-tests'
25 - The following long-obsolete m4 macros will be removed in the
26 next major Automake version (1.13):
28 AM_PROG_CC_STDC: superseded by AC_PROG_CC since October 2002
29 fp_PROG_CC_STDC: broken alias for AM_PROG_CC_STDC
30 fp_WITH_DMALLOC: old alias for AM_WITH_DMALLOC
31 AM_CONFIG_HEADER: superseded by AC_CONFIG_HEADERS since July 2002
32 ud_PATH_LISPDIR: old alias for AM_PATH_LISPDIR
33 jm_MAINTAINER_MODE: old alias for AM_MAINTAINER_MODE
34 ud_GNU_GETTEXT: old alias for AM_GNU_GETTEXT
35 gm_PROG_LIBTOOL: old alias for AC_PROG_LIBTOOL
36 fp_C_PROTOTYPES: old alias for AM_C_PROTOTYPES (which was part
37 of the now-removed automatic de-ANSI-fication
40 - All the "old alias" macros in 'm4/obsolete.m4' will be removed in
41 the next major Automake version (1.13).
43 - Support for the two- and three-arguments invocation forms of the
44 AM_INIT_AUTOMAKE macro will be deprecated in the next minor version
45 of Automake (1.12.1) and removed in the next major version (1.13).
47 - The '--acdir' option of aclocal is deprecated, and will probably
48 be removed in the next major Automake release (1.13). You should
49 use the options '--automake-acdir' and '--system-acdir' instead
50 (which have been introduced in Automake 1.11.2).
52 - The exact order in which the directories in the aclocal macro
53 search path are looked up is probably going to be changed in the
54 next Automake release (1.13).
56 * Warnings and deprecations:
58 - Automake now issues a warning (in the 'portability' category) if
59 'configure.in' is used instead of 'configure.ac' as the Autoconf
60 input file. Such a warning will also be present in the next
61 Autoconf version (2.70).
63 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
67 * New supported languages:
69 - Support for Objective C++ has been added; it should work similarly to
70 the support for Objective C.
72 * Deprecated obsolescent features:
74 - Use of the long-deprecated two- and three-arguments invocation forms
75 of the AM_INIT_AUTOMAKE macro now elicits a warning in the 'obsolete'
76 category. Starting from the next major Automake release (1.13), such
77 usages won't be allowed anymore.
79 - Support for the "Cygnus-style" trees (enabled by the 'cygnus' option) is
80 now deprecated (its use triggers a warning in the 'obsolete' category).
81 It will be removed in the next major Automake release (1.13).
83 - The long-obsolete (since 1.10) automake-provided $(mkdir_p) make
84 variable, @mkdir_p@ configure-time substitution and AM_PROG_MKDIR
85 m4 macro are deprecated, eliciting a warning in the 'obsolete'
86 category. They will be removed in the next major version (1.13).
88 * Miscellaneous changes:
90 - The Automake test cases now require a proper POSIX-conforming shell.
91 Older non-POSIX Bourne shells (like Solaris 10 /bin/sh) won't be
92 accepted anymore. In most cases, the user shouldn't have to specify
93 such POSIX shell explicitly, since it will be looked up at configure
94 time. Still, when this lookup fails, or when the user wants to
95 override its conclusion, the variable 'AM_TEST_RUNNER_SHELL' can be
96 used (pointing to the shell that will be used to run the Automake
101 * Bugs introduced by 1.12:
103 - Several weaknesses in Automake's own build system and test suite
106 * Bugs introduced by 1.11.3:
108 - When given non-option arguments, aclocal rejects them, instead of
109 silently ignoring them.
111 * Long-standing bugs:
113 - When the 'color-tests' option is in use, forcing of colored testsuite
114 output through "AM_COLOR_TESTS=always" works even if the terminal is
115 a non-ANSI one, i.e., if the TERM environment variable has a value of
118 - Several inefficiencies and poor performances in the implementation
119 of the parallel-tests 'check' and 'recheck' targets have been fixed.
121 - The post-processing of output "#line" directives done the ylwrap
122 script is more faithful w.r.t. files in a subdirectory; for example,
123 if the processed file is "src/grammar.y", ylwrap will correctly
124 produce directives like:
125 #line 7 "src/grammar.y"
130 * Bugs with new Perl versions:
132 - Aclocal works correctly with perl 5.16.0 (automake bug#11543).
134 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
138 * Obsolete features removed:
140 - The never documented nor truly used script 'acinstall' has been
143 - Support for automatic de-ANSI-fication has been removed.
145 - The support for the "obscure" multilib feature has been removed
146 from Automake core (but remains available in the 'contrib/'
147 directory of the Automake distribution).
149 - Support for ".log -> .html" conversion and the check-html and
150 recheck-html targets has been removed from Automake core (but
151 remains available in the 'contrib/' directory of the Automake
154 - The deprecated 'lzma' compression format for distribution archives
155 has been removed, in favor of 'xz' and 'lzip'.
157 - The obsolete AM_WITH_REGEX macro has been removed.
159 - The long-deprecated options '--output-dir', '--Werror' and
160 '--Wno-error' have been removed.
162 - The chapter on the history of Automake has been moved out of the
163 reference manual, into a new dedicated Texinfo file.
167 - New 'cscope' target to build a cscope database for the source tree.
169 * Changes to Automake-generated testsuite harnesses:
171 - The new automake option 'serial-tests' has been introduced. It can
172 be used to explicitly instruct automake to use the older serial
173 testsuite harness. This is still the default at the moment, but it
174 might change in future versions.
176 - The 'recheck' target (provided by the parallel testsuite harness) now
177 depends on the 'all' target. This allows for a better user-experience
178 in test-driven development. See automake bug#11252.
180 - Test scripts that exit with status 99 to signal an "hard error" (e.g.,
181 and unexpected or internal error, or a failure to set up the test case
182 scenario) have their outcome reported as an 'ERROR' now. Previous
183 versions of automake reported such an outcome as a 'FAIL' (the only
184 difference with normal failures being that hard errors were counted
185 as failures even when the test originating them was listed in
188 - The testsuite summary displayed by the parallel-test harness has a
189 completely new format, that always list the numbers of passed, failed,
190 xfailed, xpassed, skipped and errored tests, even when these numbers
191 are zero (but using smart coloring when the color-tests option is in
194 - The default testsuite driver offered by the 'parallel-tests' option is
195 now implemented (partly at least) with the help of automake-provided
196 auxiliary scripts (e.g., 'test-driver'), instead of relying entirely
197 on code in the generated Makefile.in.
198 This has two noteworthy implications. The first one is that projects
199 using the 'parallel-tests' option should now either run automake with
200 the '--add-missing' option, or manually copy the 'test-driver' script
201 into their tree. The second, and more important, implication is that
202 now, when the 'parallel-tests' option is in use, TESTS_ENVIRONMENT can
203 not be used anymore to define a test runner, and the command specified
204 in LOG_COMPILER (and <ext>_LOG_COMPILER) must be a *real* executable
205 program or script. For example, this is still a valid usage (albeit
208 TESTS_ENVIRONMENT = \
209 if test -n '$(STRICT_TESTS)'; then \
210 maybe_errexit='-e'; \
214 LOG_COMPILER = $(SHELL) $$maybe_errexit
216 while this is not anymore:
218 TESTS_ENVIRONMENT = \
219 $(SHELL) `test -n '$(STRICT_TESTS_CHECKING)' && echo ' -e'`
223 TESTS_ENVIRONMENT = \
224 run_with_perl_or_shell () \
226 if grep -q '^#!.*perl' $$1; then
232 LOG_COMPILER = run_with_perl_or_shell
234 - The package authors can now use customary testsuite drivers within
235 the framework provided by the 'parallel-tests' testsuite harness.
236 Consistently with the existing syntax, this can be done by defining
237 special makefile variables 'LOG_DRIVER' and '<ext>_LOG_DRIVER'.
239 - A new developer-reserved variable 'AM_TESTS_FD_REDIRECT' can be used
240 to redirect/define file descriptors used by the test scripts.
242 - The parallel-tests harness generates now, in addition the '.log' files
243 holding the output produced by the test scripts, a new set of '.trs'
244 files, holding "metadata" derived by the execution of the test scripts;
245 among such metadata are the outcomes of the test cases run by a script.
247 - Initial and still experimental support for the TAP test protocol is
250 * Changes to Yacc and Lex support:
252 - C source and header files derived from non-distributed Yacc and/or
253 Lex sources are now removed by a simple "make clean" (while they were
254 previously removed only by "make maintainer-clean").
256 - Slightly backward-incompatible change, relevant only for use of Yacc
257 with C++: the extensions of the header files produced by the Yacc
258 rules are now modelled after the extension of the corresponding
259 sources. For example, yacc files named "foo.y++" and "bar.yy" will
260 produce header files named "foo.h++" and "bar.hh" respectively, where
261 they would have previously produced header files named simply "foo.h"
262 and "bar.h". This change offers better compatibility with 'bison -o'.
264 * Miscellaneous changes:
266 - The AM_PROG_VALAC macro now causes configure to exit with status 77,
267 rather than 1, if the vala compiler found is too old.
269 - The build system of Automake itself now avoids the use of make
270 recursion as much as possible.
272 - Automake now prefers to quote 'like this' or "like this", rather
273 than `like this', in diagnostic message and generated Makefiles,
274 to accommodate the new GNU Coding Standards recommendations.
276 - Automake has a new option '--print-libdir' that prints the path of the
277 directory containing the Automake-provided scripts and data files.
279 - The 'dist' and 'dist-all' targets now can run compressors in parallel.
281 - The rules to create pdf, dvi and ps output from Texinfo files now
282 works better with modern 'texi2dvi' script, by explicitly passing
283 it the '--clean' option to ensure stray auxiliary files are not
284 left to clutter the build directory.
286 - Automake can now generate silenced rules for texinfo outputs.
288 - Some auxiliary files that are automatically distributed by Automake
289 (e.g., 'install-sh', or the 'depcomp' script for packages compiling
290 C sources) might now be listed in the DIST_COMMON variable in many
291 Makefile.in files, rather than in the top-level one.
293 - Messages of types warning or error from 'automake' and 'aclocal'
294 are now prefixed with the respective type, and presence of -Werror
297 - Automake's early configure-time sanity check now tries to avoid
298 sleeping for a second, which slowed down cached configure runs
299 noticeably. In that case, it will check back at the end of the
300 configure script to ensure that at least one second has passed, to
301 avoid time stamp issues with makefile rules rerunning autotools
304 - The warnings in the category 'extra-portability' are now enabled by
305 '-Wall'. In previous versions, one has to use '-Wextra-portability'
310 - Various minor bugfixes for recent or long-standing bugs.
312 * Bugs introduced by 1.11:
314 - The AM_COND_IF macro also works if the shell expression for the
315 conditional is no longer valid for the condition.
317 - The automake-provided parallel testsuite harness does not fail anymore
318 with BSD make used in parallel mode when there are test scripts in a
319 subdirectory, like in:
321 TESTS = sub/foo.test sub/bar.test
323 * Long-standing bugs:
325 - Automake's own build system finally have a real "installcheck" target.
327 - Vala-related cleanup rules are now more complete, and work better in
330 - Files listed with the AC_REQUIRE_AUX_FILE macro in configure.ac are
331 now automatically distributed also if the directory of the auxiliary
332 files coincides with the top-level directory.
334 - Automake now detects the presence of the '-d' flag in the various
335 '*YFLAGS' variables even when their definitions involve indirections
336 through other variables, such as in:
338 AM_YFLAGS = $(foo_opts)
340 - Automake now complains if a '*YFLAGS' variable has any conditional
341 content, not only a conditional definition.
343 - Explicit enabling and/or disabling of Automake warning categories
344 through the '-W...' options now always takes precedence over the
345 implicit warning level implied by Automake strictness (foreign, gnu
346 or gnits), regardless of the order in which such strictness and
347 warning flags appear. For example, a setting like:
348 AUTOMAKE_OPTIONS = -Wall --foreign
349 will cause the warnings in category 'portability' to be enabled, even
350 if those warnings are by default disabled in 'foreign' strictness.
352 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
354 Bugs fixed in 1.11.5:
356 * Bugs introduced by 1.11.3:
358 - Vala files with '.vapi' extension are now recognized and handled
359 correctly again. See automake bug#11222.
361 - Vala support work again for projects that contain some program
362 built from '.vala' (and possibly '.c') sources and some other
363 program built from '.c' sources *only*. See automake bug#11229.
365 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
369 * Miscellaneous changes:
371 - The 'ar-lib' script now ignores the "s" (symbol index) and "S" (no
372 symbol index) modifiers as well as the "s" action, as the symbol index
373 is created unconditionally by Microsoft lib. Also, the "q" (quick)
374 action is now a synonym for "r" (replace). Also, the script has been
375 ignoring the "v" (verbose) modifier already since Automake 1.11.3.
377 - When the 'compile' script is used to wrap MSVC, it now accepts an
378 optional space between the -I, -L and -l options and their respective
379 arguments, for better POSIX compliance.
381 - There is an initial, experimental support for automatic dependency
382 tracking with tcc (the Tiny C Compiler). Its associated depmode is
383 currently recognized as "icc" (but this and other details are likely
384 to change in future versions).
386 - Automatic dependency tracking now works also with the IBM XL C/C++
387 compilers, thanks to the new new depmode 'xlc'.
389 Bugs fixed in 1.11.4:
391 * Bugs introduced by 1.11.2:
393 - A definition of 'noinst_PYTHON' before 'python_PYTHON' (or similar)
394 don't cause spurious failures upon "make install" anymore.
396 - The user can now instruct the 'uninstall-info' rule not to update
397 the '${infodir}/dir' file by exporting the environment variable
398 'AM_UPDATE_INFO_DIR' to the value "no". This is done for consistency
399 with how the 'install-info' rule operates since automake 1.11.2.
401 * Long-standing bugs:
403 - It is now possible for a foo_SOURCES variable to hold Vala sources
404 together with C header files, as well as with sources and headers for
405 other supported languages (e.g., C++). Previously, only mixing C and
406 Vala sources was supported.
408 - If "aclocal --install" is used, and the first directory specified with
409 '-I' is non-existent, aclocal will now create it before trying to copy
412 - An empty declaration of a "foo_PRIMARY" don't cause anymore the
413 generated install rules to create an empty $(foodir) directory;
414 for example, if Makefile.am contains something like:
418 pkglibexec_SCRIPTS += bar.sh
421 the $(pkglibexec) directory will not be created upon "make install".
423 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
427 * Miscellaneous changes:
429 - Automake's own build system is more silent by default, making use of
430 the 'silent-rules' option.
432 - The master copy of the `gnupload' script is now maintained in gnulib,
435 - The `missing' script doesn't try to wrap calls to `tar' anymore.
437 - "make dist" doesn't wrap `tar' invocations with the `missing' script
438 anymore. Similarly, the obsolescent variable `$(AMTAR)' (which you
439 shouldn't be using BTW ;-) does not invoke the missing script anymore
440 to wrap tar, but simply invokes the `tar' program itself.
442 - "make dist" can now create lzip-compressed tarballs.
444 - In the Automake info documentation, the Top node and the nodes about
445 the invocation of the automake and aclocal programs have been renamed;
446 now, calling "info automake" will open the Top node, while calling
447 "info automake-invocation" and "info aclocal-invocation" will access
448 the nodes about the invocation of respectively automake and aclocal.
450 - Automake is now distributed as a gzip-compressed and an xz-compressed
451 tarball. Previously, bzip2 was used instead of xz.
453 - The last relics of Python 1.5 support have been removed from the
454 AM_PATH_PYTHON macro.
456 - For programs and libraries, automake now detects EXTRA_foo_DEPENDENCIES
457 and adds them to the normal list of dependencies, but without
458 overwriting the foo_DEPENDENCIES variable, which is normally computed
461 Bugs fixed in 1.11.3:
463 * Bugs introduced by 1.11.2:
465 - Automake now correctly recognizes the prefix/primary combination
466 `pkglibexec_SCRIPTS' as valid.
468 - The parallel-tests harness doesn't trip anymore on sed implementations
469 with stricter limits on the length of input lines (problem seen at
472 * Long-standing bugs:
474 - The "deleted header file problem" for *.am files is avoided by stub
475 rules. This allows `make' to trigger a rerun of `automake' also if
476 some previously needed `.am' file has been removed.
478 - The `silent-rules' option now generates working makefiles even
479 for the uncommon `make' implementations that do not support the
480 nested-variables extension to POSIX 2008. For such `make'
481 implementations, whether a build is silent is determined at
482 configure time, and cannot be overridden at make time with
483 `make V=0' or `make V=1'.
485 - Vala support now works better in VPATH setups.
487 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
491 * Changes to aclocal:
493 - The `--acdir' option is deprecated. Now you should use the new options
494 `--automake-acdir' and `--system-acdir' instead.
496 - The `ACLOCAL_PATH' environment variable is now interpreted as a
497 colon-separated list of additional directories to search after the
498 automake internal acdir (by default ${prefix}/share/aclocal-APIVERSION)
499 and before the system acdir (by default ${prefix}/share/aclocal).
501 * Miscellaneous changes:
503 - The Automake support for automatic de-ANSI-fication has been
504 deprecated. It will probably be removed in the next major Automake
507 - The `lzma' compression scheme and associated automake option `dist-lzma'
508 is obsoleted by `xz' and `dist-xz' due to upstream changes.
510 - You may adjust the compression options used in dist-xz and dist-bzip2.
511 The default is now merely -e for xz, but still -9 for bzip; you may
512 specify a different level via the XZ_OPT and BZIP2 envvars respectively.
513 E.g., "make dist-xz XZ_OPT=-7" or "make dist-bzip2 BZIP2=-5"
515 - The `compile' script now converts some options for MSVC for a better
516 user experience. Similarly, the new `ar-lib' script wraps Microsoft lib.
518 - The py-compile script now accepts empty arguments passed to the options
519 `--destdir' and `--basedir', and complains about unrecognized options.
520 Moreover, a non-option argument or a special `--' argument terminates
523 - A developer that needs to pass specific flags to configure at "make
524 distcheck" time can now, and indeed is advised to, do so by defining
525 the developer-reserved makefile variable AM_DISTCHECK_CONFIGURE_FLAGS,
526 instead of the old DISTCHECK_CONFIGURE_FLAGS.
527 The DISTCHECK_CONFIGURE_FLAGS variable should now be reserved for the
528 user; still, the old Makefile.am files that used to define it will
529 still continue to work as before.
531 - New macro AM_PROG_AR that looks for an archiver and wraps it in the new
532 'ar-lib' auxiliary script if the selected archiver is Microsoft lib.
533 This new macro is required for LIBRARIES and LTLIBRARIES when automake
534 is run with -Wextra-portability and -Werror.
536 - When using DejaGnu-based testsuites, the user can extend the `site.exp'
537 file generated by automake-provided rules by defining the special make
538 variable `$(EXTRA_DEJAGNU_SITE_CONFIG)'.
540 - The `install-info' rule can now be instructed not to create/update
541 the `${infodir}/dir' file, by exporting the new environment variable
542 `AM_UPDATE_INFO_DIR' to the value "no".
544 Bugs fixed in 1.11.2:
546 * Bugs introduced by 1.11:
548 - The parallel-tests driver no longer produces erroneous results with
549 Tru64/OSF 5.1 sh upon unreadable log files.
551 - The `parallel-tests' test driver does not report spurious successes
552 when used with concurrent FreeBSD make (e.g., "make check -j3").
554 - When the parallel-tests driver is in use, automake now explicitly
555 rejects invalid entries and conditional contents in TEST_EXTENSIONS,
556 instead of issuing confusing and apparently unrelated error messages
557 (e.g., "non-POSIX variable name", "bad characters in variable name",
558 or "redefinition of TEST_EXTENSIONS), or even, in some situations,
559 silently producing broken `Makefile.in' files.
561 - The `silent-rules' option now truly silences all compile rules, even
562 when dependency tracking is disabled. Also, when `silent-rules' is
563 not used, `make' output no longer contains spurious backslash-only
564 lines, thus once again matching what Automake did before 1.11.
566 - The AM_COND_IF macro also works if the shell expression for the
567 conditional is no longer valid for the condition.
569 * Long-standing bugs:
571 - The order of Yacc and Lex flags is fixed to be consistent with other
572 languages: $(AM_YFLAGS) comes before $(YFLAGS), and $(AM_LFLAGS) before
573 $(LFLAGS), so that the user variables override the developer variables.
575 - "make distcheck" now correctly complains also when "make uninstall"
576 leaves one and only one file installed in $(prefix).
578 - A "make uninstall" issued before a "make install", or after a mere
579 "make install-data" or a mere "make install-exec" does not spuriously
582 - Automake now warns about more primary/directory invalid combinations,
583 such as "doc_LIBRARIES" or "pkglib_PROGRAMS".
585 - Rules generated by Automake now try harder to not change any files when
586 `make -n' is invoked. Fixes include compilation of Emacs Lisp, Vala, or
587 Yacc source files and the rule to update config.h.
589 - Several scripts and the parallel-tests testsuite driver now exit with
590 the right exit status upon receiving a signal.
592 - A per-Makefile.am setting of -Werror does not erroneously carry over
593 to the handling of other Makefile.am files.
595 - The code for automatic dependency tracking works around a Solaris
596 make bug triggered by sources containing repeated slashes when the
597 `subdir-objects' option was used.
599 - The makedepend and hp depmodes now work better with VPATH builds.
601 - Java sources specified with check_JAVA are no longer compiled for
602 "make all", but only for "make check".
604 - An usage like "java_JAVA = foo.java" will now cause Automake to warn
605 and error out if `javadir' is undefined, instead of silently producing
606 a broken Makefile.in.
608 - aclocal and automake now honour the configure-time definitions of
609 AUTOCONF and AUTOM4TE when they spawn autoconf or autom4te processes.
611 - The `install-info' recipe no longer tries to guess whether the
612 `install-info' program is from Debian or from GNU, and adaptively
613 change its behaviour; this has proven to be frail and easy to
616 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
618 Bugs fixed in 1.11.1:
620 - Lots of minor bugfixes.
622 * Bugs introduced by 1.11:
624 - The `parallel-tests' test driver works around a GNU make 3.80 bug with
625 trailing white space in the test list (`TESTS = foo $(EMPTY)').
627 * Long standing bugs:
629 - On Darwin 9, `pythondir' and `pyexecdir' pointed below `/Library/Python'
630 even if the `--prefix' argument pointed outside of a system directory.
631 AM_PATH_PYTHON has been fixed to ignore the value returned from python's
632 `get_python_lib' function if it points outside the configured prefix,
633 unless the `--prefix' argument was either `/usr' or below `/System'.
635 - The testsuite does not try to change the mode of `ltmain.sh' files from
636 a Libtool installation (symlinked to test directories) any more.
638 - AM_PROG_GCJ uses AC_CHECK_TOOLS to look for `gcj' now, so that prefixed
639 tools are preferred in a cross-compile setup.
641 - The distribution is tarred up with mode 755 now by the `dist*' targets.
642 This fixes a race condition where untrusted users could modify files
643 in the $(PACKAGE)-$(VERSION) distdir before packing if the toplevel
644 build directory was world-searchable. This is CVE-2009-4029.
646 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
650 * Version requirements:
652 - Autoconf 2.62 or greater is required.
654 * Changes to aclocal:
656 - The autoconf version check implemented by aclocal in aclocal.m4
657 (and new in Automake 1.10) is degraded to a warning. This helps
658 in the common case where the Autoconf versions used are compatible.
660 * Changes to automake:
662 - The automake program can run multiple threads for creating most
663 Makefile.in files concurrently, if at least Perl 5.7.2 is available
664 with interpreter-based threads enabled. Set the environment variable
665 AUTOMAKE_JOBS to the maximum number of threads to use, in order to
666 enable this experimental feature.
668 * Changes to Libtool support:
670 - Libtool generic flags are now passed to the install and uninstall
673 - distcheck works with Libtool 2.x even when LT_OUTPUT is used, as
674 config.lt is removed correctly now.
678 - subdir-object mode works now with Fortran (F77, FC, preprocessed
679 Fortran, and Ratfor).
681 - For files with extension .f90, .f95, .f03, or .f08, the flag
682 $(FCFLAGS_f[09]x) computed by AC_FC_SRCEXT is now used in compile rules.
684 - Files with extension .sx are also treated as preprocessed assembler.
686 - The default source file extension (.c) can be overridden with
687 AM_DEFAULT_SOURCE_EXT now.
689 - Python 3.0 is supported now, Python releases prior to 2.0 are no
692 - AM_PATH_PYTHON honors python's idea about the site directory.
694 - There is initial support for the Vala programming language, when using
697 * Miscellaneous changes:
699 - Automake development is done in a git repository on Savannah now, see
701 http://git.sv.gnu.org/gitweb/?p=automake.git
703 A read-only CVS mirror is provided at
705 cvs -d :pserver:anonymous@pserver.git.sv.gnu.org:/automake.git \
706 checkout -d automake HEAD
708 - "make dist" can now create xz-compressed tarballs,
709 as well as (deprecated?) lzma-compressed tarballs.
711 - `automake --add-missing' will by default install the GPLv3 file as
712 COPYING if it is missing. It will also warn that the license file
713 should be added to source control. Note that Automake will never
714 overwrite an existing COPYING file, even when the `--force-missing'
717 - The manual is now distributed under the terms of the GNU FDL 1.3.
719 - Automake ships and installs man pages for automake and aclocal now.
721 - New shorthand `$(pkglibexecdir)' for `$(libexecdir)/@PACKAGE@'.
723 - install-sh supports -C, which does not update the installed file
724 (and its time stamps) if the contents did not change.
726 - The `gnupload' script has been revamped.
728 - The `depcomp' and `compile' scripts now work with MSVC under MSYS.
730 - The targets `install' and `uninstall' are more efficient now, in that
731 for example multiple files from one Automake variable such as
732 `bin_SCRIPTS' are copied in one `install' (or `libtool --mode=install')
733 invocation if they do not have to be renamed.
735 Both install and uninstall may sometimes enter (`cd' into) the target
736 installation directory now, when no build-local scripts are used.
738 Both install and uninstall do not fail anymore but do nothing if an
739 installation directory variable like `bindir' is set to the empty string.
741 For built-in rules, `make install' now fails reliably if installation
742 of a file failed. Conversely, `make uninstall' even succeeds when
743 issued multiple times.
745 These changes may need some adjustments from users: For example,
746 some `install' programs refuse to install multiple copies of the
747 same file in one invocation, so you may need to remove duplicate
748 entries from file lists.
750 Also, within one set of files, say, nobase_data_DATA, the order of
751 installation may be changed, or even unstable among different hosts,
752 due to the use of associative arrays in awk. The increased use of
753 awk matches a similar move in Autoconf to provide for better scaling.
755 Further, most undocumented per-rule install command variables such as
756 binSCRIPT_INSTALL have been removed because they are not needed any
757 more. Packages which use them should be using the appropriate one of
758 INSTALL_{DATA,PROGRAM,SCRIPT} or their install_sh_{DATA,PROGRAM,SCRIPT}
759 counterpart, depending on the type of files and the need for automatic
760 target directory creation.
762 - The "deleted header file problem" for *.m4 files is avoided by
763 stub rules. This allows `make' to trigger a rerun of `aclocal'
764 also if some previously needed macro file has been removed.
766 - Rebuild rules now also work for a removed `subdir/Makefile.in' in
767 an otherwise up to date tree.
769 - The `color-tests' option causes colored test result output on terminals.
771 - The `parallel-tests' option enables a new test driver that allows for
772 parallel test execution, inter-test dependencies, lazy test execution
773 for unit-testing, re-testing only failed tests, and formatted result output
774 as RST (reStructuredText) and HTML. Enabling this option may require some
775 changes to your test suite setup; see the manual for details.
777 - The `silent-rules' option enables Linux kernel-style silent build output.
778 This option requires the widely supported but non-POSIX `make' feature
779 of recursive variable expansion, so do not use it if your package needs
780 to build with `make' implementations that do not support it.
782 To enable less verbose build output, the developer has to use the Automake
783 option `silent-rules' in `AM_INIT_AUTOMAKE', or call the `AM_SILENT_RULES'
784 macro. The user may then set the default verbosity by passing the
785 `--enable-silent-rules' option to `configure'. At `make' run time, this
786 default may be overridden using `make V=0' for less verbose, and `make V=1'
787 for backward-compatible verbose output.
789 - New prefix `notrans_' for manpages which should not be transformed
790 by --program-transform.
792 - New macro AM_COND_IF for conditional evaluation and conditional
795 - For AC_CONFIG_LINKS, if source and destination are equal, do not
796 remove the file in a non-VPATH build. Such setups work with Autoconf
799 - AM_MAINTAINER_MODE now allows for an optional argument specifying
802 - AM_SUBST_NOTMAKE may prevent substitution of AC_SUBSTed variables,
803 useful especially for multi-line values.
805 - Automake's early configure-time sanity check now diagnoses an
806 unsafe absolute source directory name and makes configure fail.
808 - The Automake macros and rules cope better with whitespace in the
809 current directory name, as long as the relative path to `configure'
810 does not contain whitespace. To this end, the values of `$(MISSING)'
811 and `$(install_sh)' may contain suitable quoting, and their expansion
812 might need `eval'uation if used outside of a makefile. These
813 undocumented variables may be used in several documented macros such
814 as $(AUTOCONF) or $(MAKEINFO).
818 * Long-standing bugs:
820 - Fix aix dependency tracking for libtool objects.
822 - Work around AIX sh quoting issue in AC_PROG_CC_C_O, leading to
823 unnecessary use of the `compile' script.
825 - For nobase_*_LTLIBRARIES with nonempty directory components, the
826 correct `-rpath' argument is used now.
828 - `config.status --file=Makefile depfiles' now also works with the
829 extra quoting used internally by Autoconf 2.62 and newer
830 (it used to work only without the `--file=' bit).
832 - The `missing' script works better with versioned tool names.
834 - Semantics for `missing help2man' have been revamped:
836 Previously, if `help2man' was not present, `missing help2man' would have
837 the following semantics: if some man page was out of date but present, then
838 a warning would be printed, but the exit status was 0. If the man page was
839 not present at all, then `missing' would create a replacement man page
840 containing an error message, and exit with a status of 2. This does not play
841 well with `make': the next run will see this particular man page as being up
842 to date, and will only error out on the next generated man page, if any;
843 repeat until all pages are done. This was not desirable.
845 These are the new semantics: if some man page is not present, and help2man
846 is not either, then `missing' will warn and generate the replacement page
847 containing the error message, but exit successfully. However, `make dist'
848 will ensure that no such bogus man pages are packaged into a tarball.
850 - Targets provided by automake behave better with `make -n', in that they
851 take care not to create files.
853 - `config.status Makefile... depfiles' works fine again in the presence of
854 disabled dependency tracking.
856 - The default no-op recursive rules for these targets also work with BSD make
857 now: html, install-html, install-dvi, install-pdf, install-pdf, install-info.
859 - `make distcheck' works also when both a directory and some file below it
860 have been added to a distribution variable, such as EXTRA_DIST or *_SOURCES.
862 - Texinfo dvi, ps, pdf, and html output files are not removed upon
863 `make mostlyclean' any more; only the LaTeX by-products are.
865 - Renamed objects also work with the `subdir-objects' option and
866 source file languages which Automake does not know itself.
868 - `automake' now correctly complains about variable assignments which are
869 preceded by a comment, extend over multiple lines with backslash-escaped
870 newlines, and end in a comment sign. Previous versions would silently
871 and wrongly ignore such assignments completely.
873 * Bugs introduced by 1.10:
875 - Fix output of dummy dependency files in presence of post-processed
876 Makefile.in's again, but also cope with long lines.
878 - $(EXEEXT) is automatically appended to filenames of XFAIL_TESTS
879 that have been declared as programs in the same Makefile.
880 This is for consistency with the analogous change to TESTS in 1.10.
882 - Fix order of standard includes to again be `-I. -I$(srcdir)',
883 followed by directories containing config headers.
885 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
889 * Version requirements:
891 - Autoconf 2.60 or greater is required.
893 - Perl 5.6 or greater is required.
895 * Changes to aclocal:
897 - aclocal now also supports -Wmumble and -Wno-mumble options.
899 - `dirlist' entries (for the aclocal search path) may use shell
900 wildcards such as `*', `?', or `[...]'.
902 - aclocal supports an --install option that will cause system-wide
903 third-party macros to be installed in the local directory
904 specified with the first -I flag. This option also uses #serial
905 lines in M4 files to upgrade local macros.
907 The new aclocal options --dry-run and --diff help to review changes
908 before they are installed.
910 - aclocal now outputs an autoconf version check in aclocal.m4 in
911 projects using automake.
913 For a few years, automake and aclocal have been calling autoconf
914 (or its underlying engine autom4te) to accurately retrieve the
915 data they need from configure.ac and its siblings. Doing so can
916 only work if all autotools use the same version of autoconf. For
917 instance a Makefile.in generated by automake for one version of
918 autoconf may stop working if configure is regenerated with another
919 version of autoconf, and vice versa.
921 This new version check ensures that the whole build system has
922 been generated using the same autoconf version.
924 * Support for new Autoconf macros:
926 - The new AC_REQUIRE_AUX_FILE Autoconf macro is supported.
928 - If `subdir-objects' is set, and AC_CONFIG_LIBOBJ_DIR is specified,
929 $(LIBOBJS), $(LTLIBOBJS), $(ALLOCA), and $(LTALLOCA) can be used
930 in different directories. However, only one instance of such a
931 library objects directory is supported.
933 * Change to Libtool support:
935 - Libtool generic flags (those that go before the --mode=MODE option)
936 can be specified using AM_LIBTOOLFLAGS and target_LIBTOOLFLAGS.
938 * Yacc and Lex changes:
940 - The rebuild rules for distributed Yacc and Lex output will avoid
941 overwriting existing files if AM_MAINTAINER_MODE and maintainer-mode
944 - ylwrap is now always used for lex and yacc source files,
945 regardless of whether there is more than one source per directory.
949 - Preprocessed assembler (*.S) compilation now honors CPPFLAGS,
950 AM_CPPFLAGS and per-target _CPPFLAGS, and supports dependency
951 tracking, unlike non-preprocessed assembler (*.s).
953 - subdir-object mode works now with Assembler. Automake assumes
954 that the compiler understands `-c -o'.
956 - Preprocessed assembler (*.S) compilation now also honors
957 $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES).
959 - Improved support for Objective C:
960 - Autoconf's new AC_PROG_OBJC will enable automatic dependency tracking.
961 - A new section of the manual documents the support.
963 - New support for Unified Parallel C:
964 - AM_PROG_UPC looks for a UPC compiler.
965 - A new section of the manual documents the support.
967 - Per-target flags are now correctly handled in link rules.
969 For instance maude_CFLAGS correctly overrides AM_CFLAGS; likewise
970 for maude_LDFLAGS and AM_LDFLAGS. Previous versions bogusly
971 preferred AM_CFLAGS over maude_CFLAGS while linking, and they
972 used both AM_LDFLAGS and maude_LDFLAGS on the same link command.
974 The fix for compiler flags (i.e., using maude_CFLAGS instead of
975 AM_CFLAGS) should not hurt any package since that is how _CFLAGS
976 is expected to work (and actually works during compilation).
978 However using maude_LDFLAGS "instead of" AM_LDFLAGS rather than
979 "in addition to" breaks backward compatibility with older versions.
980 If your package used both variables, as in
982 AM_LDFLAGS = common flags
984 a_LDFLAGS = more flags
987 and assumed *_LDFLAGS would sum up, you should rewrite it as
989 AM_LDFLAGS = common flags
991 a_LDFLAGS = $(AM_LDFLAGS) more flags
994 This new behavior of *_LDFLAGS is more coherent with other
995 per-target variables, and the way *_LDFLAGS variables were
996 considered internally.
998 * New installation targets:
1000 - New targets mandated by GNU Coding Standards:
1005 By default they will only install Texinfo manuals.
1006 You can customize them with *-local variants:
1012 - The undocumented recursive target `uninstall-info' no longer exists.
1013 (`uninstall' is in charge of removing all possible documentation
1014 flavors, including optional formats such as dvi, ps, or info even
1015 when `no-installinfo' is used.)
1017 * Miscellaneous changes:
1019 - Automake no longer complains if input files for AC_CONFIG_FILES
1020 are specified using shell variables.
1022 - clean, distribution, or rebuild rules are normally disabled for
1023 inputs and outputs of AC_CONFIG_FILES, AC_CONFIG_HEADERS, and
1024 AC_CONFIG_LINK specified using shell variables. However, if these
1025 variables are used as ${VAR}, and AC_SUBSTed, then Automake will
1026 be able to output rules anyway.
1027 (See the Automake documentation for AC_CONFIG_FILES.)
1029 - $(EXEEXT) is automatically appended to filenames of TESTS
1030 that have been declared as programs in the same Makefile.
1031 This is mostly useful when some check_PROGRAMS are listed in TESTS.
1033 - `-Wportability' has finally been turned on by default for `gnu' and
1034 `gnits' strictness. This means, automake will complain about %-rules
1035 or $(GNU Make functions) unless you switch to `foreign' strictness or
1036 use `-Wno-portability'.
1038 - Automake now uses AC_PROG_MKDIR_P (new in Autoconf 2.60), and uses
1039 $(MKDIR_P) instead of $(mkdir_p) to create directories. The
1040 $(mkdir_p) variable is still defined (to the same value as
1041 $(MKDIR_P)) but should be considered obsolete. If you are using
1042 $(mkdir_p) in some of your rules, please plan to update them to
1043 $(MKDIR_P) at some point.
1045 - AM_C_PROTOTYPES and ansi2knr are now documented as being obsolete.
1046 They still work in this release, but may be withdrawn in a future one.
1048 - Inline compilation rules for gcc3-style dependency tracking are
1051 - Automake installs a "Hello World!" example package in $(docdir).
1052 This example is used throughout the new "Autotools Introduction"
1053 chapter of the manual.
1055 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1059 * Makefile.in bloat reduction:
1061 - Inference rules are used to compile sources in subdirectories when
1062 the `subdir-objects' option is used and no per-target flags are
1063 used. This should reduce the size of some projects a lot, because
1064 Automake used to output an explicit rule for each such object in
1067 - Automake no longer outputs three rules (.o, .obj, .lo) for each
1068 object that must be built with explicit rules. It just outputs
1069 the rules required to build the kind of object considered: either
1070 the two .o and .obj rules for usual objects, or the .lo rule for
1073 * Change to Libtool support:
1075 - Libtool tags are used with libtool versions that support them.
1076 (I.e., with Libtool 1.5 or greater.)
1078 - Automake is now able to handle setups where a libtool library is
1079 conditionally installed in different directories, as in
1082 lib_LTLIBRARIES = liba.la
1084 pkglib_LTLIBRARIES = liba.la
1086 liba_la_SOURCES = ...
1088 * Changes to aclocal:
1090 - aclocal now ensures that AC_DEFUNs and AU_DEFUNs it discovers are
1091 really evaluated, before it decides to include them in aclocal.m4.
1092 This solves nasty problems with conditional redefinitions of
1093 Autoconf macros in /usr/share/aclocal/*.m4 files causing extraneous
1094 *.m4 files to be included in any project using these macros.
1095 (Calls to AC_PROG_EGREP causing libtool.m4 to be included is the
1096 most famous instance of this bug.)
1098 - Do not complain about missing conditionally AC_REQUIREd macros
1099 that are not actually used. In 1.8.x aclocal would correctly
1100 determine which of these macros were really needed (and include
1101 only these in the package); unfortunately it would also require
1102 all of them to be present in order to run. This created
1103 situations were aclocal would not work on a tarball distributing
1104 all the macros it uses. For instance running aclocal on a project
1105 containing only the subset of the Gettext macros in use by the
1106 project did not work, because gettext conditionally requires other
1109 * Portability improvements:
1111 - Tar format can be chosen with the new options tar-v7, tar-ustar, and
1112 tar-pax. The new option filename-length-max=99 helps diagnosing
1113 filenames that are too long for tar-v7. (PR/414)
1115 - Variables aumented with `+=' are now automatically flattened (i.e.,
1116 trailing backslashes removed) and then wrapped around 80 colummns
1117 (adding trailing backslashes). In previous versions, a long series
1123 would result in a single-line definition of VAR that could possibly
1124 exceed the maximum line length of some make implementations.
1126 Non-augmented variables are still output as they are defined in
1131 - Support Fortran 90/95 with the new "fc" and "ppfc" languages.
1132 Works the same as the old Fortran 77 implementation; just replace
1133 F77 with FC everywhere (exception: FFLAGS becomes FCFLAGS).
1134 Requires a version of autoconf which provides AC_PROG_FC (>=2.59).
1136 - Support for conditional _LISP.
1138 - Support for conditional -hook and -local rules (PR/428).
1140 - Diagnose AC_CONFIG_AUX_DIR calls following AM_INIT_AUTOMAKE. (PR/49)
1142 - Automake will not write any Makefile.ins after the first error it
1143 encounters. The previous Makefile.ins (if any) will be left in
1144 place. (Warnings will not prevent output, but remember they can
1145 be turned into errors with -Werror.)
1147 - The restriction that SUBDIRS must contain direct children is gone.
1150 - The manual tells more about SUBDIRS vs. DIST_SUBDIRS.
1151 It also gives an example of nested packages using AC_CONFIG_SUBDIRS.
1153 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1155 Bugs fixed in 1.8.5:
1157 * Long-standing bugs:
1159 - Define DIST_SUBDIRS even when the `no-dist' or `cygnus' options are used
1160 so that `make distclean' and `make maintainer-clean' can work.
1162 - Define AR and ARFLAGS even when only EXTRA_LIBRARIES are defined.
1164 - Fix many rules to please FreeBSD make, which runs commands with `sh -e'.
1166 - Polish diagnostic when no input file is found.
1168 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1170 Bugs fixed in 1.8.4:
1172 * Long-standing bugs:
1174 - Fix AM_PATH_PYTHON to correctly display $PYTHON when it has been
1175 overridden by the user.
1177 - Honor PATH_SEPARATOR in various places of the Automake package, for
1180 - Adjust dependency tracking mode detection to ICC 8.0's new output.
1183 - Fix install-sh so it can install the `mv' binary... using `mv'.
1185 - Fix tru64 dependency tracking for libtool objects.
1187 - Work around Exuberant Ctags when creating a TAGS files in a directory
1188 without files to scan but with subdirectories to include.
1190 * Bugs introduced by 1.8:
1192 - Fix an "internal error" when @LIBOBJS@ is used in a variable that is
1193 not defined in the same conditions as the _LDADD that uses it.
1195 - Do not warn when JAVAROOT is overridden, this is legitimate.
1197 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1199 Bugs fixed in 1.8.3:
1201 * Long-standing bugs:
1203 - Quote filenames in installation rules, in case $DESTDIR, $prefix,
1204 or any of the other *dir variables contain a space.
1206 Please note that Automake does not and cannot support spaces in
1207 filenames that are involved during the build. This change affects
1208 only installation paths, so that `make install' does not bomb out
1209 in packages configured with
1210 ./configure --prefix '/c/Program Files'
1212 - Fix the depfiles output so it works with GNU sed (<4.1) even when
1213 POSIXLY_CORRECT is set.
1215 - Do not AC_SUBST(LIBOBJS) in AM_WITH_REGEX. This macro was unusable
1216 since Autoconf 2.54, which defines LIBOBJS itself.
1218 - Fix a potential (but unlikely) race condition in parallel elisp
1219 builds. (Introduced in 1.7.3.)
1221 - Do not assume that users override _DEPENDENCIES in all conditions
1222 where Automake will try to define them.
1224 - Do not use `mkdir -p' in mkinstalldirs, unless this is GNU mkdir.
1225 Solaris 8's `mkdir -p' is not thread-safe and can break parallel
1228 This fix also affects the $(mkdir_p) variable defined since
1229 Automake 1.8. It will be set to `mkdir -p' only if mkdir is GNU
1230 mkdir, and to `mkinstalldirs' or `install-sh -d' otherwise.
1232 - Secure temporary directory creation in `make distcheck'. (PR/413)
1234 - Do not generate two build rules for `parser.h' when the
1235 parser appears in two different conditionals.
1237 - Work around a Solaris 8 /bin/sh bug in the test for dependency
1238 checking. Usually ./configure will not pick this shell; so this
1239 fix only helps cases where the shell is forced to /bin/sh.
1241 * Bugs introduced by 1.8:
1243 - In some situations (hand-written `m4_include's), aclocal would
1244 call the `File::Spec->rel2abs' method, which was only introduced
1245 in Perl 5.6. This new version reestablish support Perl 5.005.
1247 It is likely that the next major Automake releases will require at
1248 least Perl 5.6. Consider upgrading your development environment
1249 if you are still using the five-year-old Perl 5.005.
1251 - Automake would sometimes fail to define rules for targets listed
1252 in variables defined in multiple conditions. For instance on
1258 it would define only the `a.$(OBJEXT): a.c' rule and omit the
1259 `b.$(OBJEXT): b.c' rule.
1261 * New sections in manual:
1263 - Third-Party Makefiles: how to interface third party Makefiles.
1264 - Upgrading: upgrading packages to newer Automake versions.
1265 - Multiple Outputs: handling tools that produce many outputs.
1267 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1271 * A (well known) portability bug slipped in the changes made to
1272 install-sh in Automake 1.8.1. The broken install-sh would refuse to
1273 install anything on Tru64.
1275 * Fix install rules for conditionally built python files. (This never
1278 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1282 * Bugs introduced by 1.8:
1284 - Fix Config.pm import error with old Perl versions (at least
1285 5.005_03). One symptom is that aclocal could not find its macro
1288 - Automake 1.8 used `mkdir -m 0755 -p --' to ensure that directories
1289 created by `make install' are always world readable, even if the
1290 installer happens to have an overly restrictive umask (e.g. 077).
1291 This was a mistake and has been reverted. There are at least two
1292 reasons why we must not use `-m 0755':
1293 - it causes special bits like SGID to be ignored,
1294 - it may be too restrictive (some setups expect 775 directories).
1296 - Fix aclocal to honor definitions located in files which have been
1297 m4_included manually. aclocal 1.8 had been updated to check
1298 m4_included files for new requirements, but forgot that these
1299 m4_included files can also provide new definitions.
1301 Note that if you have such a setup, we recommend you get rid of
1302 it. In the past, there was a reason to m4_include files manually:
1303 aclocal used to duplicate entire M4 files into aclocal.m4, even
1304 files that were distributed. Some packages were therefore
1305 m4_including the distributed file directly, and playing some
1306 tricks to ensure aclocal would not copy that file to aclocal.m4,
1307 in order to limit the amount of duplication. Since aclocal 1.8.x
1308 will precisely output m4_includes for local M4 files, we recommend
1309 that you clean up your setup, removing all manual m4_includes and
1310 letting aclocal output them.
1312 - Output detailed menus in the Info version if the Automake manual,
1313 so that Emacs can locate the indexes.
1315 - configure.ac and configure were listed twice in DIST_COMMON (an
1316 internal variable where Automake lists configury files to
1317 distribute). This was harmless, but unaesthetic.
1319 - Use `chmod a-w' instead of `chmod -w' as the latter honors umask.
1320 This was an issue only in the Automake package itself, not in
1323 - Automake assumed that all AC_CONFIG_LINKS arguments had the form
1324 DEST:SRC. This was wrong, as some packages do
1325 AC_CONFIG_LINKS($computedlinks). This version no longer abort in
1328 - Contrary to mkinstalldirs, $(mkdir_p) was expecting exactly one
1329 argument. This caused two kinds of failures:
1330 - Rules installing data in a conditionally defined directory
1331 failed when that directory was undefined. In this case no
1332 argument was supplied.
1333 - `make installdirs' failed, because several directories were
1334 passed to $(mkdir_p). This was an issue only on platform
1335 were $(mkdir_p) is implemented with `install-sh -d'.
1336 $(mkdir_p) as been changed to accept 0 or more arguments, as
1339 * Long-standing bugs:
1341 - Fix an unexpected diagnostic occurring when users attempt
1342 to override some internal variables that Automake appends to.
1344 - aclocal now scans configure.ac for macro definitions (PR/319).
1346 - Fix a portability issue with OSF1/Tru64 Make. If a directory
1347 distributes files which are outside itself (this usually occurs
1348 when using AC_CONFIG_AUX_DIR([../dir]) to use auxiliary files
1349 from a parent package), then `make distcheck' fails due to an
1350 optimization performed by OSF1/Tru64 Make in its VPATH handling.
1351 (tests/subpkg2.test failure)
1353 - Fix another portability issue with Sun and OSF1/Tru64 Make.
1354 In a VPATH-build configuration, `make install' would install
1355 nobase_ files to wrong locations.
1357 - Fix a Perl `uninitialized value' diagnostic occurring when
1358 automake complains that a Texinfo file does not have a
1359 @setfilename statement.
1361 - Erase config.status.lineno during `make distclean'. This file
1362 can be created by config.status. Automake already knew about
1363 configure.lineno, but forgot config.status.lineno.
1365 - Distribute all files, even those which are built and installed
1366 conditionally. This change affects files listed in conditionally
1367 defined *_HEADERS and *_PYTHON variable (unless they are nodist_*)
1368 as well as those listed in conditionally defined dist_*_DATA,
1369 dist_*_JAVA, dist_*_LISP, and dist_*_SCRIPTS variables.
1371 - Fix AM_PATH_LISPDIR to avoid \? in sed regular expressions; it
1372 doesn't conform to POSIX.
1374 - Normalize help strings for configure variables and options added
1379 - Check for python2.4 in AM_PATH_PYTHON.
1381 * Spurious failures in test suite:
1383 - tests/libtool5.test, tests/ltcond.test, tests/ltcond2.test,
1384 tests/ltconv.test: fix failures with CVS Libtool.
1385 - tests/aclocal6.test: fix failure if autom4te.cache is disabled.
1386 - tests/txinfo24.test, tests/txinfo25.test, tests/txinfo28.test:
1387 fix failures with old Texinfo versions.
1389 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1395 - The NEWS file is more verbose.
1399 - Autoconf 2.58 or greater is required.
1403 - Default source file names in the absence of a _SOURCES declaration
1404 are made by removing any target extension before appending `.c', so
1405 to make the libtool module `foo.la' from `foo.c', you only need to
1408 lib_LTLIBRARIES = foo.la
1409 foo_la_LDFLAGS = -module
1411 For backward compatibility, foo_la.c will be used instead of
1412 foo.c if this file exists or is the explicit target of a rule.
1413 However -Wobsolete will warn about this deprecated naming.
1415 - AR's `cru' flags are now set in a global ARFLAGS variable instead
1416 of being hard-coded in each $(AR) invocation, so they can be
1417 substituted from configure.ac. This has been requested by people
1418 dealing with non-POSIX ar implementations.
1420 - New warning option: -Woverride. This will warn about any user
1421 target or variable definitions which override Automake
1424 - Texinfo rules back up and restore info files when makeinfo fails.
1426 - Texinfo rules now support the `html' target.
1427 Running this requires Texinfo 4.0 or greater.
1429 `html' is a new recursive target, so if your package mixes
1430 hand-crafted `Makefile.in's with Automake-generated
1431 `Makefile.in's, you should adjust the former to support (or
1432 ignore) this target so that `make html' recurses successfully. If
1433 you had a custom `html' rule in your `Makefile.am', it's better to
1434 rename it as `html-local', otherwise your rule will override
1435 Automake's new rule (you can check that by running `automake
1436 -Woverride') and that will stop the recursion to subdirectories.
1438 Last but not least, this `html' rule is declared PHONY, even when
1439 overridden. Fortunately, it appears that few packages use a
1440 non-PHONY `html' rule.
1442 - Any file which is m4_included from configure.ac will appear as a
1443 configure and Makefile.in dependency, and will be automatically
1446 - The rules for rebuilding Makefiles and Makefile.ins will now
1447 rebuild all Makefiles and all Makefile.ins at once when one of
1448 configure's dependencies has changed. This is considerably faster
1449 than previous implementations, where config.status and automake
1450 were run separately in each directory (this still happens when you
1451 change a Makefile.am locally, without touching configure.ac or
1452 friends). Doing this also solves a longstanding issue: these
1453 rebuild rules failed to work when adding new directories to the
1454 tree, forcing you to run automake manually.
1456 - For similar reasons, the rules to rebuild configure,
1457 config.status, and aclocal.m4 are now defined in all directories.
1458 Note that if you were using the CONFIG_STATUS_DEPENDENCIES and
1459 CONFIGURE_DEPENDENCIES (formerly undocumented) variables, you
1460 should better define them in all directories. This is easily done
1461 using an AC_SUBST (make sure you prefix these dependencies with
1462 $(top_srcdir) since this variable will appear at different
1463 levels of the build tree).
1465 - aclocal will now use `m4_include' instead of copying local m4
1466 files into aclocal.m4. (Local m4 files are those you ship with
1467 your project, other files will be copied as usual.)
1469 Because m4_included files are automatically distributed, it means
1470 for most projects there is no point in EXTRA_DISTing the list of
1471 m4 files which are used. (You can probably get rid of
1472 m4/Makefile.am if you had one.)
1474 - aclocal will avoid touching aclocal.m4 when possible, so that
1475 Autom4te's cache isn't needlessly invalidated. This behavior can
1476 be switched off with the new `--force' option.
1478 - aclocal now uses Autoconf's --trace to detect macros which are
1479 actually used and will no longer include unused macros simply
1480 because they where mentioned. This was often the case for macros
1481 called conditionally.
1483 - New options no-dist and no-dist-gzip.
1485 - compile, depcomp, elisp-comp, install-sh, mdate-sh, mkinstalldirs,
1486 py-compile, and ylwrap, now all understand --version and --help.
1488 - Automake will now recognize AC_CONFIG_LINKS so far as removing created
1489 links as part of the distclean target and including source files in
1492 - AM_PATH_PYTHON now supports ACTION-IF-FOUND and ACTION-IF-NOT-FOUND
1493 argument. The latter can be used to override the default behavior
1494 (which is to abort).
1496 - Automake will exit with $? = 63 on version mismatch. (So does
1497 Autoconf 2.58) missing knows this, and in this case it will
1498 emulate the tools as if they were absent. Because older versions
1499 of Automake and Autoconf did not use this exit code, this change
1500 will only be useful in projects generated with future versions of
1503 - When using AC_CONFIG_FILES with multiple input files, Automake
1504 generates the first ".in" input file for which a ".am" exists.
1505 (Former versions would try to use only the first input file.)
1507 - lisp_DATA is now allowed. If you are using the empty ELCFILES
1508 idiom to disable byte-compilation of lisp_LISP files, it is
1509 recommended that you switch to using lisp_DATA. Note that
1510 this is not strictly equivalent: lisp_DATA will install elisp
1511 files even if emacs is not installed, while *_LISP do not
1512 install anything unless emacs is found.
1514 - Makefiles will prefer `mkdir -p' over mkinstalldirs if it is
1515 available. This selection is achieved through the Makefile
1516 variable $(mkdir_p) that is set by AM_INIT_AUTOMAKE to either
1517 `mkdir -m 0755 -p --', `$(mkinstalldirs) -m 0755', or
1518 `$(install_sh) -m 0755 -d'.
1522 - Because `mkdir -p' is available on most platforms, and we can use
1523 `install-sh -d' when it is not, the use of the mkinstalldirs
1524 script is being phased out. `automake --add-missing' no longer
1525 installs it, and if you remove mkinstalldirs from your package,
1526 automake will define $(mkinstalldirs) as an alias for $(mkdir_p).
1528 Gettext 0.12.1 still requires mkinstalldirs. Fortunately
1529 gettextize and autopoint will install it when needed. Automake
1530 will continue to define the $(mkinstalldirs) and to distribute
1531 mkinstalldirs when this script is in the source tree.
1533 - AM_PROG_CC_STDC is now empty. The content of this macro was
1534 merged in AC_PROG_CC. If your code uses $am_cv_prog_cc_stdc, you
1535 should adjust it to use $ac_cv_prog_cc_stdc instead. (This
1536 renaming should be safe, even if you have to support several,
1537 versions of Automake, because AC_PROG_CC defines this variable
1538 since Autoconf 2.54.)
1540 - Some users where using the undocumented ACLOCAL_M4_SOURCES
1541 variable to override the aclocal.m4 dependencies computed
1542 (inaccurately) by older versions of Automake. Because Automake
1543 now tracks configure's m4 dependencies accurately (see m4_include
1544 above), the use of ACLOCAL_M4_SOURCES should be considered
1545 obsolete and will be flagged as such when running `automake
1550 - Defining programs conditionally using Automake conditionals no
1551 longer leads to a combinatorial explosion. The following
1552 construct used to be troublesome when used with dozens of
1567 Likewise for _SOURCES, _LDADD, and _LIBADD variables.
1569 - Due to implementation constraints, previous versions of Automake
1570 proscribed multiple conditional definitions of some variables
1580 All _PROGRAMS, _LDADD, and _LIBADD variables were affected.
1581 This restriction has been lifted, and these variables now
1582 support multiple conditional definitions as do other variables.
1584 - Cleanup the definitions of $(distdir) and $(top_distdir).
1585 $(top_distdir) now points to the root of the distribution
1586 directory created during `make dist', as it did in Automake 1.4,
1587 not to the root of the build tree as it did in intervening
1588 versions. Furthermore these two variables are now only defined in
1589 the top level Makefile, and passed to sub-directories when running
1592 - The --no-force option now correctly checks the Makefile.in's
1593 dependencies before deciding not to update it.
1595 - Do not assume that make files are called Makefile in cleaning rules.
1597 - Update .info files in the source tree, not in the build tree. This
1598 is what the GNU Coding Standard recommend. Only Automake 1.7.x
1599 used to update these files in the build tree (previous versions did
1600 it in the source tree too), and it caused several problems, varying
1601 from mere annoyance to portability issues.
1603 - COPYING, COPYING.LIB, and COPYING.LESSER are no longer overwritten
1604 when --add-missing and --force-missing are used. For backward
1605 compatibility --add-missing will continue to install COPYING (in
1606 `gnu' strictness) when none of these three files exist, but this
1607 use is deprecated: you should better choose a license yourself and
1608 install it once for all in your source tree (and in your code
1611 - Fix ylwrap so that it does not overwrite header files that haven't
1612 changed, as the inline rule already does.
1614 - User-defined rules override automake-defined rules for the same
1615 targets, even when rules do not have commands. This is not new
1616 (and was documented), however some of the automake-generated
1617 rules have escaped this principle in former Automake versions.
1618 Rules for the following targets are affected by this fix:
1620 clean, clean-am, dist-all, distclean, distclean-am, dvi, dvi-am,
1621 info, info-am, install-data-am, install-exec-am, install-info,
1622 install-info-am, install-man, installcheck-am, maintainer-clean,
1623 maintainer-clean-am, mostlyclean, mostlyclean-am, pdf, pdf-am,
1624 ps, ps-am, uninstall-am, uninstall-info, uninstall-man
1626 Practically it means that an attempt to supplement the dependencies
1627 of some target, as in
1629 clean: my-clean-rule
1631 will now *silently override* the automake definition of the
1632 rule for this target. Running `automake -Woverride' will diagnose
1633 all such overriding definitions.
1635 It should be noted that almost all these targets support a *-local
1636 variant that is meant to supplement the automake-defined rule
1637 (See node `Extending' in the manual). The above rule should
1640 clean-local: my-clean-rule
1642 These *-local targets have been documented since at least
1643 Automake 1.2, so you should not fear the change if you have
1644 to support multiple automake versions.
1648 - The Automake manual is now distributed under the terms of the GNU FDL.
1650 - Targets dist-gzip, dist-bzip2, dist-tarZ, dist-zip are always defined.
1652 - core dumps are no longer removed by the cleaning rules. There are
1653 at least three reasons for this:
1654 1. These files should not be created by any build step,
1655 so their removal do not fit any of the cleaning rules.
1656 Actually, they may be precious to the developer.
1657 2. If such file is created during a build, then it's clearly a
1658 bug Automake should not hide. Not removing the file will
1659 cause `make distcheck' to complain about its presence.
1660 3. Operating systems have different naming conventions for
1661 core dump files. A core file on one system might be a
1662 completely legitimate data file on another system.
1664 - RUNTESTFLAGS, CTAGSFLAGS, ETAGSFLAGS, JAVACFLAGS are no longer
1665 defined by Automake. This means that any definition in the
1666 environment will be used, unless overridden in the Makefile.am or
1667 on the command line. The old behavior, where these variables were
1668 defined empty in each Makefile, can be obtained by AC_SUBSTing or
1669 AC_ARG_VARing each variable from configure.ac.
1671 - CONFIGURE_DEPENDENCIES and CONFIG_STATUS_DEPENDENCIES are now
1672 documented. (The is not a new feature, these variables have
1673 been there since at least Automake 1.4.)
1675 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1677 Bugs fixed in 1.7.9:
1678 * Fix install-strip to work with nobase_ binaries.
1679 * Fix renaming of #line directives in ylwrap.
1680 * Rebuild with Autoconf 2.59. (1.7.8 was not installable with pdksh.)
1682 Bugs fixed in 1.7.8:
1683 * Remove spurious blank lines in cleaning rules introduced in 1.7.7.
1684 * Fix detection of Debian's install-info, broken since version 1.5.
1685 (Debian bug #213524).
1686 * Honor -module if it appears in AM_LDFLAGS (i.e., relax name checking)
1687 This was only done for libfoo_LDFLAGS and LDFLAGS in previous versions.
1689 Bugs fixed in 1.7.7:
1690 * The implementation of automake's --no-force option is unreliable,
1691 so this option is ignored in this version. A real fix will appear in
1692 Automake 1.8. (Debian Bug #206299)
1693 * AM_PATH_PYTHON: really check the whole list of interpreters if no
1694 argument is given. (PR/399)
1695 * Do not warn about leading `_' in variable names, even with -Wportability.
1696 * Support user redefinitions of TEXINFO_TEX.
1697 * depcomp: support AIX Compiler version 6.
1698 * Fix missing rebuilds during `make dist' with BSD make.
1699 (Could produce tarballs containing out-of-date files.)
1700 * Resurrect multilib support.
1701 * Noteworthy manual updates:
1702 - Extending aclocal: how to write m4 macros that won't trigger warnings
1704 - A Shared Library: Rewrite and split into subsections.
1706 Bugs fixed in 1.7.6:
1707 * Fix depcomp's icc mode for ICC 7.1.
1708 * Diagnose calls to AC_CONFIG_FILES and friends with not enough arguments.
1709 * Fix maintainer-clean's removal of autom4te.cache in VPATH builds.
1710 * Fix AM_PATH_LISPDIR to work with POSIXLY_CORRECT=1.
1711 * Fix the location reported in some diagnostics related to AUTOMAKE_OPTIONS.
1712 * Remove Latin-1 characters from elisp-comp.
1713 * Update the manual's @dircategory to match the Free Software Directory.
1715 Bugs fixed in 1.7.5:
1716 * Update install-sh's license to remove an advertising clause.
1717 (Debian bug #191717)
1718 * Fix a bug introduced in 1.7.4, related to BUILT_SOURCE handling,
1719 that caused invalid Makefile.ins to be generated.
1720 * Make sure AM_MAKE_INCLUDE doesn't fail when a `doit' file exists.
1721 * New FAQ entry: renamed objects.
1723 Bugs fixed in 1.7.4:
1724 * Tweak the TAGS rule to support Exuberant Ctags (in addition to
1725 the Emacs implementation)
1726 * Fix output of aclocal.m4 dependencies in subdirectories.
1727 * Use `mv -f' instead of `mv' in fastdep rules.
1728 * Upgrade mdate-sh to work on OS/2.
1729 * Don't byte-compile elisp files when ELCFILES is set empty.
1730 (this documented feature was broken by 1.7.3)
1731 * Diagnose trailing backslashes on last line of Makefile.am.
1732 * Diagnose whitespace following trailing backslashes.
1733 * Multiple tests are now correctly supported in DEJATOOL. (PR/388)
1734 * Fix rebuilt rules for AC_CONFIG_FILES([Makefile:Makefile.in:Makefile.bot])
1736 * `make install' will build `BUILT_SOURCES' first.
1737 * Minor documentation fixes.
1739 Bugs fixed in 1.7.3:
1740 * Fix stamp files numbering (when using multiple AC_CONFIG_HEADERS).
1741 * Query distutils for `pythondir' and `pythonexecdir', instead of
1742 using an hardcoded path. This should allow builds on 64-bit
1743 distributions that usually use lib64/ instead of lib/.
1744 * AM_PATH_PYTHON will also search for python2.3.
1745 * elisp files are now built all at once instead of one by one. Besides
1746 incurring a speed-up, this is required to support interdependent elisp files.
1747 * Support for DJGPP:
1748 - `make distcheck' will now work in `_inst/' and `_build' instead
1749 of `=inst/' and `=build/'
1750 - use `_dirstamp' when the file-system doesn't support `.dirstamp'
1751 - install/uninstall `*.i[0-9][0-9]'-style info files
1752 - more changes that affect only the Automake package (not its output)
1753 * Fix some incompatibilities with upcoming perl-5.10.
1754 * Properly quote AC_PACKAGE_TARNAME and AC_PACKAGE_VERSION when defining
1755 PACKAGE and VERSION.
1757 - dashmstdout and dashXmstdout modes: don't use `-o /dev/null', this
1758 is troublesome with gcc and Solaris compilers. (PR/385)
1759 - makedepend mode: work with Libtool. (PR/385 too)
1761 * better support for unusual gettext setups, such as multiple po/ directories
1763 - Flag missing po/ and intl/ directories as warnings, not errors.
1764 - Disable these warnings if po/ does not exist.
1765 * Noteworthy manual updates:
1767 - Document how AC_CONFIG_AUX_DIR interacts with missing files.
1769 - Document `AM_YFLAGS = -d'. (PR/382)
1771 Bugs fixed in 1.7.2:
1772 * Fix installation and uninstallation of Info files built in subdirectories.
1773 * Do not run `./configure --with-included-gettext' during `make distcheck'
1774 if AM_GNU_GETTEXT([external]) is used.
1775 * Correctly uninstall renamed man pages.
1776 * Do not strip escaped newline in variables defined in one condition
1777 and augmented in another condition.
1778 * Fix ansi2knr rules for LIBOBJS sources.
1779 * Clean all known Texinfo index files, not only those which appear to
1780 be used, because we cannot know which indexes are used in included files.
1781 (PR/375, Debian Bug #168671)
1782 * Honor only the first @setfilename seen in a Texinfo file.
1783 * Treat "required file X not found" diagnostics as errors (exit status 1).
1784 * Don't complain that a required file is not found when it is a Makefile
1786 * Don't use single suffix inference rules when building `.info'-less
1787 Info files, for the sake of Solaris make.
1788 * The `check' target now depends on `$(BUILT_SOURCES)'. (PR/359)
1789 * Recognize multiple inference rules such as `.a.b .c.d:'. (PR/371)
1790 * Warn about multiple inference rules when -Wportability is used. (PR/372)
1791 * Fix building of deansified files from subdirectories. (PR/370)
1792 * Add missing `fi' in the .c->.obj rules.
1793 * Improve install-sh to work even when names contain spaces or certain
1794 (but not all) shell metachars.
1795 * Fix the following spurious failures in the test suite:
1796 depcomp2.test, gnits2.test, gnits3.test, python3.test, texinfo13.test
1797 * Noteworthy manual updates:
1798 - Augment the section about BUILT_SOURCES.
1799 - Mention that AM_PROG_CC_STDC is a relic that is better avoided today.
1801 Bugs fixed in 1.7.1:
1802 * Honor `ansi2knr' for files built in subdirectories, or using per-targets
1804 * Aclocal should now recognize macro names containing parentheses, e.g.
1805 AC_DEFUN([AC_LANG_PREPROC(Fortran 90)], [...]).
1806 * Erase *.sum and *.log files created by DejaGnu, during `make distclean'.
1808 * Install Python files even if they were built. (PR/369)
1809 * Have stamp-vti dependent upon configure instead of configure.ac, as the
1810 version might not be defined in the latter. (PR/358)
1811 * Reorder arguments passed to a couple of commands, so things works
1812 when POSIXLY_CORRECT=1.
1813 * Fix a regex that can cause Perl to segfault on large input.
1815 * Fix distribution of packages that have some sources defined conditionally,
1816 as in the `Conditional compilation using Automake conditionals' example
1818 * Fix spurious test suite failures on IRIX.
1819 * Don't report a required variable as undefined if it has been
1820 defined conditionally for the "right" conditions.
1821 * Fix cleaning of the /tmp subdirectory used by `make distcheck', in case
1822 `make distcheck' fails.
1823 * Fix distribution of included Makefile fragment, so we don't create
1824 spurious directories in the distribution. (PR/366)
1825 * Don't complain that a target lacks `.$(EXEEXT)' when it has it.
1828 * Autoconf 2.54 is required.
1829 * `aclocal' and `automake' will no longer warn about obsolete
1830 configure macros. This is done by `autoconf -Wobsolete'.
1831 * AM_CONFIG_HEADER, AM_SYS_POSIX_TERMIOS and
1832 AM_HEADER_TIOCGWINSZ_NEEDS_SYS_IOCTL are obsolete (although still
1833 supported). You should use AC_CONFIG_HEADERS, AC_SYS_POSIX_TERMIOS,
1834 and AC_HEADER_TIOCGWINSZ instead. `autoupdate' can upgrade
1835 `configure.ac' for you.
1836 * Support for per-program and per-library `_CPPFLAGS'.
1837 * New `ctags' target (builds CTAGS files).
1838 * Support for -Wmumble and -Wno-mumble, where mumble is a warning category
1839 (see `automake --help' or the manual for a list of them).
1840 * Honor the WARNINGS environment variable.
1841 * Omit the call to depcomp when using gcc3: call the compiler directly.
1842 * A new option, std-options, tests that programs support --help and --version
1843 when `make installcheck' is run. This is enabled by --gnits.
1844 * Texinfo rules now support the `ps' and `pdf' targets.
1845 * Info files are now created in the build directory, not the source directory.
1846 * info_TEXINFOS supports files in subdirectories (this requires Texinfo 4.1
1848 * `make distcheck' will enforce DESTDIR support by attempting
1850 * `+=' can be used in conditionals, even if the augmented variable
1851 was defined for another condition.
1852 * Makefile fragments (inserted with `include') are always distributed.
1853 * Use Autoconf's --trace interface to inspect configure.ac and get
1854 a more accurate view of it.
1855 * Add support for extending aclocal's default macro search path
1856 using a `dirlist' file within the aclocal directory.
1857 * automake --output-dir is deprecated.
1858 * The part of the distcheck target that checks whether uninstall actually
1859 removes all installed files has been moved in a separate target,
1860 distuninstallcheck, so it can be overridden easily.
1864 * Support for AM_INIT_GETTEXT([external])
1865 * Bug fixes, including:
1866 - Fix Automake's own `make install' so it works even if `ln' doesn't.
1867 - nobase_ programs and scripts honor --program-transform correctly.
1868 - Erase configure.lineno during `make distclean'.
1869 - Erase YACC and LEX outputs during `make maintainer-clean'.
1872 * Many bug fixes, including:
1873 - Requiring the current version works.
1874 - Fix "$@" portability issues (for Zsh).
1875 - Fix output of dummy dependency files in presence of post-processed
1877 - Don't compute dependencies in background to avoid races with libtool.
1878 - Fix handling of _OBJECTS variables for targets sharing source variables.
1879 - Check dependency mode for Java when AM_PROG_GCJ is used.
1882 * automake --output-dir is deprecated
1883 * Many bug fixes, including:
1884 - Don't choke on AM_LDFLAGS definitions.
1885 - Clean libtool objects from subdirectories.
1886 - Allow configure variables with reserved suffix and unknown prefix
1887 (e.g. AC_SUBST(mumble_LDFLAGS) when 'mumble' is not a target).
1888 - Fix the definition of AUTOMAKE and ACLOCAL in configure.
1891 * Autoconf 2.52 is required.
1892 * automake no longer run libtoolize.
1893 This is the job of autoreconf (from GNU Autoconf).
1894 * `dist' generates all the archive flavors, as did `dist-all'.
1895 * `dist-gzip' generates the Gzip tar file only.
1896 * Combining Automake Makefile conditionals no longer lead to a combinatorial
1897 explosion. Makefile.in's keep a reasonable size.
1898 * AM_FUNC_ERROR_AT_LINE, AM_FUNC_STRTOD, AM_FUNC_OBSTACK, AM_PTRDIFF_T
1899 are no longer shipped, since Autoconf 2.52 provides them (both as AM_
1901 * `#line' of Lex and Yacc files are properly set.
1902 * EXTRA_DIST can contain generated directories.
1903 * Support for dot-less extensions in suffix rules.
1904 * The part of the distcheck target that checks whether distclean actually
1905 cleans all built files has been moved in a separate target, distcleancheck,
1906 so it can be overridden easily.
1907 * `make distcheck' will pass additional options defined in
1908 $(DISTCHECK_CONFIGURE_FLAGS) to configure.
1909 * Fixed CDPATH portability problems, in particular for MacOS X.
1910 * Fixed handling of nobase_ targets.
1911 * Fixed support of implicit rules leading to .lo objects.
1912 * Fixed late inclusion of --add-missing files (e.g. depcomp) in DIST_COMMON
1913 * Added uninstall-hook target
1914 * `AC_INIT AM_INIT_AUTOMAKE(tarname,version)' is an obsolete construct.
1915 You can now use `AC_INIT(pkgname,version) AM_INIT_AUTOMAKE' instead.
1916 (Note that "pkgname" is not "tarname", see the manual for details.)
1917 It is also possible to pass a list of global Automake options as
1918 first argument to this new form of AM_INIT_AUTOMAKE.
1919 * Compiler-based assembler is now called `CCAS'; people expected `AS'
1920 to be a real assembler.
1921 * AM_INIT_AUTOMAKE will set STRIP itself when it needs it. Adding
1922 AC_CHECK_TOOL([STRIP], [strip]) manually is no longer required.
1923 * aclocal and automake are also installed with the version number
1924 appended, and some of the install directory names have changed.
1925 This lets you have multiple versions installed simultaneously.
1926 * Support for parsers and lexers in subdirectories.
1929 * Support for `configure.ac'.
1930 * Support for `else COND', `endif COND' and negated conditions `!COND'.
1931 * `make dist-all' is much faster.
1932 * Allows '@' AC_SUBSTs in macro names.
1933 * Faster AM_INIT_AUTOMAKE (requires update of `missing' script)
1934 * User-side dependency tracking. Developers no longer need GNU make
1936 * Uses DIST_SUBDIRS in some situations when SUBDIRS is conditional
1937 * Most files are correctly handled if they appear in subdirs
1938 For instance, a _DATA file can appear in a subdir
1939 * GNU tar is no longer required for `make dist'
1940 * Added support for `dist_' and `nodist_' prefixes
1941 * Added support for `nobase_' prefix
1942 * Compiled Java support
1943 * Support for per-executable and per-library compilation flags
1947 * Added support for the Fortran 77 programming language.
1948 * Re-indexed the Automake Texinfo manual.
1949 * Added `AM_FOOFLAGS' variable for each compiler invocation;
1950 e.g. AM_CFLAGS can be used in Makefile.am to set C compiler flags
1951 * Support for latest autoconf, including support for objext
1952 * Can now put `.' in SUBDIRS to control build order
1953 * `include' command and `+=' support for macro assignment
1954 * Dependency tracking no long susceptible to deleted header file problem
1955 * Maintainer mode now a conditional. @MAINT@ is now an anachronism.
1960 * Better Cygwin32 support
1961 * Support for suffix rules with _SOURCES variables
1962 * New options `readme-alpha' and `check-news'; Gnits mode sets these
1963 * @LEXLIB@ no longer required when lex source seen
1964 Lex support in `missing', and new lex macro. Update your missing script.
1965 * Built-in support for assembly
1966 * aclocal gives error if `AM_' macro not found
1967 * Passed YFLAGS, not YACCFLAGS, to yacc
1968 * AM_PROG_CC_STDC does not have to come before AC_PROG_CPP
1969 * Dependencies computed as a side effect of compilation
1970 * Preliminary support for Java
1971 * DESTDIR support at "make install" time
1972 * Improved ansi2knr support; you must use the latest ansi2knr.c (included)
1976 * Better DejaGnu support
1977 * Added no-installinfo option
1978 * Added Emacs Lisp support
1979 * Added --no-force option
1980 * Included `aclocal' program
1981 * Automake will now generate rules to regenerate aclocal.m4, if appropriate
1982 * Now uses `AM_' macro names everywhere
1983 * ansi2knr option can have directory prefix (eg `../lib/ansi2knr')
1984 ansi2knr now works correctly on K&R sources
1985 * Better C++, yacc, lex support
1986 * Will compute _DEPENDENCIES variables automatically if not supplied
1987 * Will interpolate $(...) and ${...} when examining contents of a variable
1988 * .deps files now in build directory, not source directory; dependency
1989 handling generally rewritten
1990 * DATA, MANS and BUILT_SOURCES no longer included in distribution
1991 * can now put config.h into a subdir
1992 * Added dist-all target
1993 * Support for install-info program (see texinfo 3.9)
1994 * Support for "yacc -d"
1995 * configure substitutions are automatically discovered and included
1996 in generated Makefile.in
1997 * Special --cygnus mode
1998 * OMIT_DEPENDENCIES can now hold list of dependencies to be omitted
1999 when making distribution. Some dependencies are auto-ignored.
2000 * Changed how libraries are specified in _LIBRARIES variable
2001 * Full libtool support, from Gord Matzigkeit
2002 * No longer have to explicitly touch stamp-h when using AC_CONFIG_HEADER;
2003 AM_CONFIG_HEADER handles it automatically
2004 * Texinfo output files no longer need .info extension
2005 * Added `missing' support
2007 * Conditionals in Makefile.am, from Ian Taylor
2011 * distcheck target runs install and installcheck targets
2012 * Added preliminary support for DejaGnu.
2017 * More libtool fixes from Gord Matzigkeit; libtool support is still
2019 * Added support for jm_MAINTAINER_MODE
2021 * New "distcheck" target
2025 * mkinstalldirs and mdate-sh now appear in directory specified by
2027 * Removed DIST_SUBDIRS, DIST_OTHER
2028 * AC_ARG_PROGRAM only required when an actual program exists
2029 * dist-hook target now run before distribution packaged up; idea from
2030 Dieter Baron. Other hooks exist, too.
2031 * Preliminary (unfinished) support for libtool
2032 * Added short option names.
2033 * Better "dist" support when gluing together multiple packages
2037 * Documentation updates (many from François Pinard)
2038 * strictness `normal' now renamed to `foreign'
2039 * Renamed --install-missing to --add-missing
2040 * Now handles AC_CONFIG_AUX_DIR
2041 * Now handles TESTS macro
2042 * DIST_OTHER renamed to EXTRA_DIST
2043 * DIST_SUBDIRS is deprecated
2044 * @ALLOCA@ and @LIBOBJS@ now work in _LDADD variables
2045 * Better error messages in many cases
2046 * Program names are canonicalized
2047 * Added "check" prefix; from Gord Matzigkeit
2051 * configure.in scanner knows about AC_PATH_XTRA, AC_OUTPUT ":" syntax
2052 * Beginnings of a test suite
2053 * Automatically adds -I options for $(srcdir), ".", and path to config.h
2054 * Doesn't print anything when running
2055 * Beginnings of MAINT_CHARSET support
2056 * Can specify version in AUTOMAKE_OPTIONS
2057 * Most errors recognizable by Emacs' M-x next-error
2058 * Added --verbose option
2059 * All "primary" variables now obsolete; use EXTRA_PRIMARY to supply
2060 configure-generated names
2061 * Required macros now distributed in aclocal.m4
2063 * --strictness=gnu is default
2067 * More sophisticated configure.in scanning; now understands ALLOCA and
2068 LIBOBJS directly, handles AC_CONFIG_HEADER more precisely, etc.
2069 * TEXINFOS and MANS now obsolete; use info_TEXINFOS and man_MANS instead.
2070 * CONFIG_HEADER variable now obsolete
2071 * Can handle multiple Texinfo sources
2072 * Allow hierarchies deeper than 2. From Gord Matzigkeit.
2073 * HEADERS variable no longer needed; now can put .h files directly into
2074 foo_SOURCES variable.
2075 * Automake automatically rebuilds files listed in AC_OUTPUT. The
2076 corresponding ".in" files are included in the distribution.
2079 * Added --gnu and --gnits options
2080 * More standards checking
2082 * Cleaned up 'dist' targets
2083 * Added AUTOMAKE_OPTIONS variable and several options
2084 * Now scans configure.in to get some information (preliminary)
2087 * Works with Perl 4 again
2090 * Added --install-missing option.
2091 * Pretty-prints generated macros and rules
2092 * Comments in Makefile.am are placed more intelligently in Makefile.in
2093 * Generates .PHONY target
2094 * Rule or macro in Makefile.am now overrides contents of Automake file
2095 * Substantial cleanups from François Pinard
2099 * Works with Perl 4 again.
2102 * New uniform naming scheme.
2103 * --strictness option
2105 * '.c' files corresponding to '.y' or '.l' files are automatically
2107 * Many bug fixes and cleanups
2110 * Allow objects to be conditionally included in libraries via lib_LIBADD.
2113 * Bug fixes in 'clean' code.
2114 * Now generates 'installdirs' target.
2115 * man page installation reworked.
2116 * 'make dist' no longer re-creates all Makefile.in's.
2119 * Reimplemented in Perl
2120 * Added --amdir option (for debugging)
2121 * Texinfo support cleaned up.
2122 * Automatic de-ANSI-fication cleaned up.
2123 * Cleaned up 'clean' targets.
2126 * Automatic dependency tracking
2127 * More documentation
2128 * New variables DATA and PACKAGEDATA
2129 * SCRIPTS installed using $(INSTALL_SCRIPT)
2130 * No longer uses double-colon rules
2132 * Changes in advance of internationalization
2136 Copyright (C) 1995-2012 Free Software Foundation, Inc.
2138 This program is free software; you can redistribute it and/or modify
2139 it under the terms of the GNU General Public License as published by
2140 the Free Software Foundation; either version 2, or (at your option)
2143 This program is distributed in the hope that it will be useful,
2144 but WITHOUT ANY WARRANTY; without even the implied warranty of
2145 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
2146 GNU General Public License for more details.
2148 You should have received a copy of the GNU General Public License
2149 along with this program. If not, see <http://www.gnu.org/licenses/>.