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 - Support for the "Cygnus-style" trees (as enabled by the 'cygnus'
10 option) will be removed in the next major Automake release (1.13).
12 - The long-obsolete (since automake 1.10) AM_PROG_MKDIR m4 macro will
13 be removed in Automake 1.13. The $(mkdir_p) make variable and the
14 @mkdir_p@ substitution will still remain available (as aliases of
15 $(MKDIR_P)) for the moment, for better backward compatibility.
17 - Autoconf 2.65 or later will be required by the next major Automake
18 version (1.13). Until now, Automake has required Autoconf version
21 - Starting from the next major Automake version (1.13), the rules
22 to build pdf, ps and dvi output from Texinfo input will use the
23 '--build-dir' option by default. Since such an option was only
24 introduced in Texinfo 4.9, this means that Makefiles generated by
25 future Automake versions will require at least that version of
28 - Starting from the next major Automake version (1.13), the parallel
29 testsuite harness (previously only enabled by the 'parallel-tests'
30 option) will become the default one; the older serial testsuite
31 harness will still be available through the use of the 'serial-tests'
34 - The following long-obsolete m4 macros will be removed in the
35 next major Automake version (1.13):
37 AM_PROG_CC_STDC: superseded by AC_PROG_CC since October 2002
38 fp_PROG_CC_STDC: broken alias for AM_PROG_CC_STDC
39 fp_WITH_DMALLOC: old alias for AM_WITH_DMALLOC
40 AM_CONFIG_HEADER: superseded by AC_CONFIG_HEADERS since July 2002
41 ud_PATH_LISPDIR: old alias for AM_PATH_LISPDIR
42 jm_MAINTAINER_MODE: old alias for AM_MAINTAINER_MODE
43 ud_GNU_GETTEXT: old alias for AM_GNU_GETTEXT
44 gm_PROG_LIBTOOL: old alias for AC_PROG_LIBTOOL
45 fp_C_PROTOTYPES: old alias for AM_C_PROTOTYPES (which was part
46 of the now-removed automatic de-ANSI-fication
49 - All the "old alias" macros in 'm4/obsolete.m4' will be removed in
50 the next major Automake version (1.13).
52 - The '--acdir' option of aclocal is deprecated, and will probably
53 be removed in the next major Automake release (1.13). You should
54 use the options '--automake-acdir' and '--system-acdir' instead
55 (which have been introduced in Automake 1.11.2).
57 - The 'missing' script will no longer try to update the timestamp
58 of out-of-date files that require a maintainer-specific tool to be
59 remade, in case the user lacks such a tool (or has a too-old version
60 of it). In fact, starting from Automake 1.13, all it'll do will be
61 giving more useful warnings than a bare "command not found" from a
66 - The AM_PROG_VALAC macro has been enhanced to takes two further
67 optional arguments; it's signature now being
69 AM_PROG_VALAC([MINIMUM-VERSION], [ACTION-IF-FOUND],
70 [ACTION-IF-NOT-FOUND])
72 - By default, AM_PROG_VALAC no longer aborts the configure invocation
73 if the Vala compiler found is too old, but simply prints a warning
74 messages (as it did when the Vala compiler was not found). This
75 should avoid unnecessary difficulties for end users that just want
76 to compile the unmodified, distributed Vala-generated C sources,
77 but happens to have an old Vala compiler in their PATH. This fixes
80 - If no proper Vala compiler is found at configure runtime, AM_PROG_VALAC
81 will set the AC_SUBST'd variable 'VALAC' to 'valac' rather than to ':'.
82 This is a better default, because with it a triggered makefile rule
83 invoking a Vala compilation will clearly fail with an informative error
84 message like "valac: command not found", rather than silently, with
85 the error possibly going unnoticed or triggering harder-to-diagnose
86 fallout failures in later steps.
92 - Automake no longer generates spurious remake rules invoking autoheader
93 to regenerate the template corresponding to header files specified after
94 the first one in AC_CONFIG_HEADERS (automake bug#12495).
96 - When wrapping Microsoft tools, the 'compile' script falls back to
97 finding classic 'libname.a' style libraries when 'name.lib' and
98 'name.dll.lib' aren't available.
100 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
104 * Warnings and deprecations:
106 - Warnings in the 'obsolete' category are enabled by default both in
107 automake and aclocal.
109 * Miscellaneous changes:
111 - Some testsuite weaknesses and spurious failures have been fixed.
113 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
117 * Miscellaneous changes:
119 - The '.m4' files provided by Automake no longer define serial numbers.
120 This should cause no difference in the behaviour of aclocal though.
122 - Some testsuite weaknesses and spurious failures have been fixed.
124 - There is initial support for automatic dependency tracking with the
125 Portland Group C/C++ compilers, thanks to the new new depmode 'pgcc'.
127 Bugs fixed in 1.12.3:
129 * Long-standing bugs:
131 - Instead of renaming only self-references of files (typically for
132 #lines), ylwrap now also renames references to the other generated
133 files. This fixes support for GLR and C++ parsers from Bison (PR
134 automake/491 and automake bug#7648): 'parser.c' now properly
135 #includes 'parser.h' instead of 'y.tab.h'.
137 - Generated files unknown to ylwrap are now preserved. This fixes
138 C++ support for Bison (automake bug#7648): location.hh and the
139 like are no longer discarded.
141 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
145 * Warnings and deprecations:
147 - Automake now issues a warning (in the 'portability' category) if
148 'configure.in' is used instead of 'configure.ac' as the Autoconf
149 input file. Such a warning will also be present in the next
150 Autoconf version (2.70).
154 - Recursive cleaning rules descends into the $(SUBDIRS) in the natural
155 order (as done by the other recursive rules), rather than in the
156 inverse order. They used to do that in order to work a round a
157 limitation in an older implementation of the automatic dependency
158 tracking support, but that limitation had been lifted years ago
159 already, when the automatic dependency tracking based on side-effects
160 of compilation had been introduced.
162 - Cleaning rules for compiled objects (both "plain" and libtool) work
163 better when subdir objects are involved, not triggering a distinct
164 'rm' invocation for each such object. They do so by removing *any*
165 compiled object file that is in the same directory of a subdir
166 object. See automake bug#10697.
168 * Silent rules support:
170 - A new predefined $(AM_V_P) make variable is provided; it expands
171 to a shell conditional that can be used in recipes to know whether
172 make is being run in silent or verbose mode.
174 Bugs fixed in 1.12.2:
176 * SECURITY VULNERABILITIES!
178 - The 'distcheck' recipe no longer grants temporary world-write
179 permissions on the extracted distdir. Even if such rights were
180 only granted for a vanishingly small time window, the implied
181 race condition proved to be enough to allow a local attacker
182 to run arbitrary code with the privileges of the user running
183 "make distcheck". This is CVE-2012-3386.
185 * Long-standing bugs:
187 - The "recheck" targets behaves better in the face of build failures
188 related to previously failed tests. For example, if a test is a
189 compiled program that must be rerun by "make recheck", and its
190 compilation fails, it will still be rerun by further "make recheck"
191 invocations. See automake bug#11791.
193 * Bugs introduced by 1.12.1:
195 - Automake provides once again the '$(mkdir_p)' make variable and the
196 '@mkdir_p@' substitution (both as simple aliases for '$(MKDIR_P)'),
197 for better backward-compatibility.
199 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
203 * New supported languages:
205 - Support for Objective C++ has been added; it should work similarly to
206 the support for Objective C.
208 * Deprecated obsolescent features:
210 - Use of the long-deprecated two- and three-arguments invocation forms
211 of the AM_INIT_AUTOMAKE macro now elicits a warning in the 'obsolete'
212 category. Starting from some future major Automake release (likely
213 post-1.13), such usages will no longer be allowed.
215 - Support for the "Cygnus-style" trees (enabled by the 'cygnus' option) is
216 now deprecated (its use triggers a warning in the 'obsolete' category).
217 It will be removed in the next major Automake release (1.13).
219 - The long-obsolete (since 1.10) automake-provided $(mkdir_p) make
220 variable, @mkdir_p@ configure-time substitution and AM_PROG_MKDIR
221 m4 macro are deprecated, eliciting a warning in the 'obsolete'
224 * Miscellaneous changes:
226 - The Automake test cases now require a proper POSIX-conforming shell.
227 Older non-POSIX Bourne shells (like Solaris 10 /bin/sh) will no longer
228 be accepted. In most cases, the user shouldn't have to specify such
229 POSIX shell explicitly, since it will be looked up at configure time.
230 Still, when this lookup fails, or when the user wants to override its
231 conclusion, the variable 'AM_TEST_RUNNER_SHELL' can be used (pointing
232 to the shell that will be used to run the Automake test cases).
234 Bugs fixed in 1.12.1:
236 * Bugs introduced by 1.12:
238 - Several weaknesses in Automake's own build system and test suite
241 * Bugs introduced by 1.11.3:
243 - When given non-option arguments, aclocal rejects them, instead of
244 silently ignoring them.
246 * Long-standing bugs:
248 - When the 'color-tests' option is in use, forcing of colored testsuite
249 output through "AM_COLOR_TESTS=always" works even if the terminal is
250 a non-ANSI one, i.e., if the TERM environment variable has a value of
253 - Several inefficiencies and poor performances in the implementation
254 of the parallel-tests 'check' and 'recheck' targets have been fixed.
256 - The post-processing of output "#line" directives done the ylwrap
257 script is more faithful w.r.t. files in a subdirectory; for example,
258 if the processed file is "src/grammar.y", ylwrap will correctly
259 produce directives like:
260 #line 7 "src/grammar.y"
265 * Bugs with new Perl versions:
267 - Aclocal works correctly with perl 5.16.0 (automake bug#11543).
269 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
273 * Obsolete features removed:
275 - The never documented nor truly used script 'acinstall' has been
278 - Support for automatic de-ANSI-fication has been removed.
280 - The support for the "obscure" multilib feature has been removed
281 from Automake core (but remains available in the 'contrib/'
282 directory of the Automake distribution).
284 - Support for ".log -> .html" conversion and the check-html and
285 recheck-html targets has been removed from Automake core (but
286 remains available in the 'contrib/' directory of the Automake
289 - The deprecated 'lzma' compression format for distribution archives
290 has been removed, in favor of 'xz' and 'lzip'.
292 - The obsolete AM_WITH_REGEX macro has been removed.
294 - The long-deprecated options '--output-dir', '--Werror' and
295 '--Wno-error' have been removed.
297 - The chapter on the history of Automake has been moved out of the
298 reference manual, into a new dedicated Texinfo file.
302 - New 'cscope' target to build a cscope database for the source tree.
304 * Changes to Automake-generated testsuite harnesses:
306 - The new automake option 'serial-tests' has been introduced. It can
307 be used to explicitly instruct automake to use the older serial
308 testsuite harness. This is still the default at the moment, but it
309 might change in future versions.
311 - The 'recheck' target (provided by the parallel testsuite harness) now
312 depends on the 'all' target. This allows for a better user-experience
313 in test-driven development. See automake bug#11252.
315 - Test scripts that exit with status 99 to signal an "hard error" (e.g.,
316 and unexpected or internal error, or a failure to set up the test case
317 scenario) have their outcome reported as an 'ERROR' now. Previous
318 versions of automake reported such an outcome as a 'FAIL' (the only
319 difference with normal failures being that hard errors were counted
320 as failures even when the test originating them was listed in
323 - The testsuite summary displayed by the parallel-test harness has a
324 completely new format, that always list the numbers of passed, failed,
325 xfailed, xpassed, skipped and errored tests, even when these numbers
326 are zero (but using smart coloring when the color-tests option is in
329 - The default testsuite driver offered by the 'parallel-tests' option is
330 now implemented (partly at least) with the help of automake-provided
331 auxiliary scripts (e.g., 'test-driver'), instead of relying entirely
332 on code in the generated Makefile.in.
333 This has two noteworthy implications. The first one is that projects
334 using the 'parallel-tests' option should now either run automake with
335 the '--add-missing' option, or manually copy the 'test-driver' script
336 into their tree. The second, and more important, implication is that
337 now, when the 'parallel-tests' option is in use, TESTS_ENVIRONMENT can
338 no longer be used to define a test runner, and the command specified
339 in LOG_COMPILER (and <ext>_LOG_COMPILER) must be a *real* executable
340 program or script. For example, this is still a valid usage (albeit
343 TESTS_ENVIRONMENT = \
344 if test -n '$(STRICT_TESTS)'; then \
345 maybe_errexit='-e'; \
349 LOG_COMPILER = $(SHELL) $$maybe_errexit
351 OTOH, this is no longer a valid usage:
353 TESTS_ENVIRONMENT = \
354 $(SHELL) `test -n '$(STRICT_TESTS_CHECKING)' && echo ' -e'`
358 TESTS_ENVIRONMENT = \
359 run_with_perl_or_shell () \
361 if grep -q '^#!.*perl' $$1; then
367 LOG_COMPILER = run_with_perl_or_shell
369 - The package authors can now use customary testsuite drivers within
370 the framework provided by the 'parallel-tests' testsuite harness.
371 Consistently with the existing syntax, this can be done by defining
372 special makefile variables 'LOG_DRIVER' and '<ext>_LOG_DRIVER'.
374 - A new developer-reserved variable 'AM_TESTS_FD_REDIRECT' can be used
375 to redirect/define file descriptors used by the test scripts.
377 - The parallel-tests harness generates now, in addition the '.log' files
378 holding the output produced by the test scripts, a new set of '.trs'
379 files, holding "metadata" derived by the execution of the test scripts;
380 among such metadata are the outcomes of the test cases run by a script.
382 - Initial and still experimental support for the TAP test protocol is
385 * Changes to Yacc and Lex support:
387 - C source and header files derived from non-distributed Yacc and/or
388 Lex sources are now removed by a simple "make clean" (while they were
389 previously removed only by "make maintainer-clean").
391 - Slightly backward-incompatible change, relevant only for use of Yacc
392 with C++: the extensions of the header files produced by the Yacc
393 rules are now modelled after the extension of the corresponding
394 sources. For example, yacc files named "foo.y++" and "bar.yy" will
395 produce header files named "foo.h++" and "bar.hh" respectively, where
396 they would have previously produced header files named simply "foo.h"
397 and "bar.h". This change offers better compatibility with 'bison -o'.
399 * Miscellaneous changes:
401 - The AM_PROG_VALAC macro now causes configure to exit with status 77,
402 rather than 1, if the vala compiler found is too old.
404 - The build system of Automake itself now avoids the use of make
405 recursion as much as possible.
407 - Automake now prefers to quote 'like this' or "like this", rather
408 than `like this', in diagnostic message and generated Makefiles,
409 to accommodate the new GNU Coding Standards recommendations.
411 - Automake has a new option '--print-libdir' that prints the path of the
412 directory containing the Automake-provided scripts and data files.
414 - The 'dist' and 'dist-all' targets now can run compressors in parallel.
416 - The rules to create pdf, dvi and ps output from Texinfo files now
417 works better with modern 'texi2dvi' script, by explicitly passing
418 it the '--clean' option to ensure stray auxiliary files are not
419 left to clutter the build directory.
421 - Automake can now generate silenced rules for texinfo outputs.
423 - Some auxiliary files that are automatically distributed by Automake
424 (e.g., 'install-sh', or the 'depcomp' script for packages compiling
425 C sources) might now be listed in the DIST_COMMON variable in many
426 Makefile.in files, rather than in the top-level one.
428 - Messages of types warning or error from 'automake' and 'aclocal'
429 are now prefixed with the respective type, and presence of -Werror
432 - Automake's early configure-time sanity check now tries to avoid
433 sleeping for a second, which slowed down cached configure runs
434 noticeably. In that case, it will check back at the end of the
435 configure script to ensure that at least one second has passed, to
436 avoid time stamp issues with makefile rules rerunning autotools
439 - The warnings in the category 'extra-portability' are now enabled by
440 '-Wall'. In previous versions, one has to use '-Wextra-portability'
445 - Various minor bugfixes for recent or long-standing bugs.
447 * Bugs introduced by 1.11:
449 - The AM_COND_IF macro also works if the shell expression for the
450 conditional is no longer valid for the condition.
452 - The automake-provided parallel testsuite harness no longer fails
453 with BSD make used in parallel mode when there are test scripts in
454 a subdirectory, like in:
456 TESTS = sub/foo.test sub/bar.test
458 * Long-standing bugs:
460 - Automake's own build system finally have a real "installcheck" target.
462 - Vala-related cleanup rules are now more complete, and work better in
465 - Files listed with the AC_REQUIRE_AUX_FILE macro in configure.ac are
466 now automatically distributed also if the directory of the auxiliary
467 files coincides with the top-level directory.
469 - Automake now detects the presence of the '-d' flag in the various
470 '*YFLAGS' variables even when their definitions involve indirections
471 through other variables, such as in:
473 AM_YFLAGS = $(foo_opts)
475 - Automake now complains if a '*YFLAGS' variable has any conditional
476 content, not only a conditional definition.
478 - Explicit enabling and/or disabling of Automake warning categories
479 through the '-W...' options now always takes precedence over the
480 implicit warning level implied by Automake strictness (foreign, gnu
481 or gnits), regardless of the order in which such strictness and
482 warning flags appear. For example, a setting like:
483 AUTOMAKE_OPTIONS = -Wall --foreign
484 will cause the warnings in category 'portability' to be enabled, even
485 if those warnings are by default disabled in 'foreign' strictness.
487 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
489 Bugs fixed in 1.11.5:
491 * Bugs introduced by 1.11.3:
493 - Vala files with '.vapi' extension are now recognized and handled
494 correctly again. See automake bug#11222.
496 - Vala support work again for projects that contain some program
497 built from '.vala' (and possibly '.c') sources and some other
498 program built from '.c' sources *only*. See automake bug#11229.
500 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
504 * Miscellaneous changes:
506 - The 'ar-lib' script now ignores the "s" (symbol index) and "S" (no
507 symbol index) modifiers as well as the "s" action, as the symbol index
508 is created unconditionally by Microsoft lib. Also, the "q" (quick)
509 action is now a synonym for "r" (replace). Also, the script has been
510 ignoring the "v" (verbose) modifier already since Automake 1.11.3.
512 - When the 'compile' script is used to wrap MSVC, it now accepts an
513 optional space between the -I, -L and -l options and their respective
514 arguments, for better POSIX compliance.
516 - There is an initial, experimental support for automatic dependency
517 tracking with tcc (the Tiny C Compiler). Its associated depmode is
518 currently recognized as "icc" (but this and other details are likely
519 to change in future versions).
521 - Automatic dependency tracking now works also with the IBM XL C/C++
522 compilers, thanks to the new new depmode 'xlc'.
524 Bugs fixed in 1.11.4:
526 * Bugs introduced by 1.11.2:
528 - A definition of 'noinst_PYTHON' before 'python_PYTHON' (or similar)
529 no longer cause spurious failures upon "make install".
531 - The user can now instruct the 'uninstall-info' rule not to update
532 the '${infodir}/dir' file by exporting the environment variable
533 'AM_UPDATE_INFO_DIR' to the value "no". This is done for consistency
534 with how the 'install-info' rule operates since automake 1.11.2.
536 * Long-standing bugs:
538 - It is now possible for a foo_SOURCES variable to hold Vala sources
539 together with C header files, as well as with sources and headers for
540 other supported languages (e.g., C++). Previously, only mixing C and
541 Vala sources was supported.
543 - If "aclocal --install" is used, and the first directory specified with
544 '-I' is non-existent, aclocal will now create it before trying to copy
547 - An empty declaration of a "foo_PRIMARY" no longer cause the generated
548 install rules to create an empty $(foodir) directory; for example, if
549 Makefile.am contains something like:
553 pkglibexec_SCRIPTS += bar.sh
556 the $(pkglibexec) directory will not be created upon "make install".
558 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
562 * Miscellaneous changes:
564 - Automake's own build system is more silent by default, making use of
565 the 'silent-rules' option.
567 - The master copy of the 'gnupload' script is now maintained in gnulib,
570 - The 'missing' script no longer tries to wrap calls to 'tar'.
572 - "make dist" no longer wraps 'tar' invocations with the 'missing'
573 script. Similarly, the obsolescent variable '$(AMTAR)' (which you
574 shouldn't be using BTW ;-) no longer invokes the 'missing' script
575 to wrap tar, but simply invokes the 'tar' program itself.
577 - "make dist" can now create lzip-compressed tarballs.
579 - In the Automake info documentation, the Top node and the nodes about
580 the invocation of the automake and aclocal programs have been renamed;
581 now, calling "info automake" will open the Top node, while calling
582 "info automake-invocation" and "info aclocal-invocation" will access
583 the nodes about the invocation of respectively automake and aclocal.
585 - Automake is now distributed as a gzip-compressed and an xz-compressed
586 tarball. Previously, bzip2 was used instead of xz.
588 - The last relics of Python 1.5 support have been removed from the
589 AM_PATH_PYTHON macro.
591 - For programs and libraries, automake now detects EXTRA_foo_DEPENDENCIES
592 and adds them to the normal list of dependencies, but without
593 overwriting the foo_DEPENDENCIES variable, which is normally computed
596 Bugs fixed in 1.11.3:
598 * Bugs introduced by 1.11.2:
600 - Automake now correctly recognizes the prefix/primary combination
601 'pkglibexec_SCRIPTS' as valid.
603 - The parallel-tests harness no longer trips on sed implementations
604 with stricter limits on the length of input lines (problem seen at
607 * Long-standing bugs:
609 - The "deleted header file problem" for *.am files is avoided by stub
610 rules. This allows 'make' to trigger a rerun of 'automake' also if
611 some previously needed '.am' file has been removed.
613 - The 'silent-rules' option now generates working makefiles even
614 for the uncommon 'make' implementations that do not support the
615 nested-variables extension to POSIX 2008. For such 'make'
616 implementations, whether a build is silent is determined at
617 configure time, and cannot be overridden at make time with
618 "make V=0" or "make V=1".
620 - Vala support now works better in VPATH setups.
622 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
626 * Changes to aclocal:
628 - The `--acdir' option is deprecated. Now you should use the new options
629 `--automake-acdir' and `--system-acdir' instead.
631 - The `ACLOCAL_PATH' environment variable is now interpreted as a
632 colon-separated list of additional directories to search after the
633 automake internal acdir (by default ${prefix}/share/aclocal-APIVERSION)
634 and before the system acdir (by default ${prefix}/share/aclocal).
636 * Miscellaneous changes:
638 - The Automake support for automatic de-ANSI-fication has been
639 deprecated. It will probably be removed in the next major Automake
642 - The `lzma' compression scheme and associated automake option `dist-lzma'
643 is obsoleted by `xz' and `dist-xz' due to upstream changes.
645 - You may adjust the compression options used in dist-xz and dist-bzip2.
646 The default is now merely -e for xz, but still -9 for bzip; you may
647 specify a different level via the XZ_OPT and BZIP2 envvars respectively.
648 E.g., "make dist-xz XZ_OPT=-7" or "make dist-bzip2 BZIP2=-5"
650 - The `compile' script now converts some options for MSVC for a better
651 user experience. Similarly, the new `ar-lib' script wraps Microsoft lib.
653 - The py-compile script now accepts empty arguments passed to the options
654 `--destdir' and `--basedir', and complains about unrecognized options.
655 Moreover, a non-option argument or a special `--' argument terminates
658 - A developer that needs to pass specific flags to configure at "make
659 distcheck" time can now, and indeed is advised to, do so by defining
660 the developer-reserved makefile variable AM_DISTCHECK_CONFIGURE_FLAGS,
661 instead of the old DISTCHECK_CONFIGURE_FLAGS.
662 The DISTCHECK_CONFIGURE_FLAGS variable should now be reserved for the
663 user; still, the old Makefile.am files that used to define it will
664 still continue to work as before.
666 - New macro AM_PROG_AR that looks for an archiver and wraps it in the new
667 'ar-lib' auxiliary script if the selected archiver is Microsoft lib.
668 This new macro is required for LIBRARIES and LTLIBRARIES when automake
669 is run with -Wextra-portability and -Werror.
671 - When using DejaGnu-based testsuites, the user can extend the `site.exp'
672 file generated by automake-provided rules by defining the special make
673 variable `$(EXTRA_DEJAGNU_SITE_CONFIG)'.
675 - The `install-info' rule can now be instructed not to create/update
676 the `${infodir}/dir' file, by exporting the new environment variable
677 `AM_UPDATE_INFO_DIR' to the value "no".
679 Bugs fixed in 1.11.2:
681 * Bugs introduced by 1.11:
683 - The parallel-tests driver no longer produces erroneous results with
684 Tru64/OSF 5.1 sh upon unreadable log files.
686 - The `parallel-tests' test driver does not report spurious successes
687 when used with concurrent FreeBSD make (e.g., "make check -j3").
689 - When the parallel-tests driver is in use, automake now explicitly
690 rejects invalid entries and conditional contents in TEST_EXTENSIONS,
691 instead of issuing confusing and apparently unrelated error messages
692 (e.g., "non-POSIX variable name", "bad characters in variable name",
693 or "redefinition of TEST_EXTENSIONS), or even, in some situations,
694 silently producing broken `Makefile.in' files.
696 - The `silent-rules' option now truly silences all compile rules, even
697 when dependency tracking is disabled. Also, when `silent-rules' is
698 not used, `make' output no longer contains spurious backslash-only
699 lines, thus once again matching what Automake did before 1.11.
701 - The AM_COND_IF macro also works if the shell expression for the
702 conditional is no longer valid for the condition.
704 * Long-standing bugs:
706 - The order of Yacc and Lex flags is fixed to be consistent with other
707 languages: $(AM_YFLAGS) comes before $(YFLAGS), and $(AM_LFLAGS) before
708 $(LFLAGS), so that the user variables override the developer variables.
710 - "make distcheck" now correctly complains also when "make uninstall"
711 leaves one and only one file installed in $(prefix).
713 - A "make uninstall" issued before a "make install", or after a mere
714 "make install-data" or a mere "make install-exec" does not spuriously
717 - Automake now warns about more primary/directory invalid combinations,
718 such as "doc_LIBRARIES" or "pkglib_PROGRAMS".
720 - Rules generated by Automake now try harder to not change any files when
721 `make -n' is invoked. Fixes include compilation of Emacs Lisp, Vala, or
722 Yacc source files and the rule to update config.h.
724 - Several scripts and the parallel-tests testsuite driver now exit with
725 the right exit status upon receiving a signal.
727 - A per-Makefile.am setting of -Werror does not erroneously carry over
728 to the handling of other Makefile.am files.
730 - The code for automatic dependency tracking works around a Solaris
731 make bug triggered by sources containing repeated slashes when the
732 `subdir-objects' option was used.
734 - The makedepend and hp depmodes now work better with VPATH builds.
736 - Java sources specified with check_JAVA are no longer compiled for
737 "make all", but only for "make check".
739 - An usage like "java_JAVA = foo.java" will now cause Automake to warn
740 and error out if `javadir' is undefined, instead of silently producing
741 a broken Makefile.in.
743 - aclocal and automake now honour the configure-time definitions of
744 AUTOCONF and AUTOM4TE when they spawn autoconf or autom4te processes.
746 - The `install-info' recipe no longer tries to guess whether the
747 `install-info' program is from Debian or from GNU, and adaptively
748 change its behaviour; this has proven to be frail and easy to
751 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
753 Bugs fixed in 1.11.1:
755 - Lots of minor bugfixes.
757 * Bugs introduced by 1.11:
759 - The `parallel-tests' test driver works around a GNU make 3.80 bug with
760 trailing white space in the test list (`TESTS = foo $(EMPTY)').
762 * Long standing bugs:
764 - On Darwin 9, `pythondir' and `pyexecdir' pointed below `/Library/Python'
765 even if the `--prefix' argument pointed outside of a system directory.
766 AM_PATH_PYTHON has been fixed to ignore the value returned from python's
767 `get_python_lib' function if it points outside the configured prefix,
768 unless the `--prefix' argument was either `/usr' or below `/System'.
770 - The testsuite does not try to change the mode of `ltmain.sh' files from
771 a Libtool installation (symlinked to test directories) any more.
773 - AM_PROG_GCJ uses AC_CHECK_TOOLS to look for `gcj' now, so that prefixed
774 tools are preferred in a cross-compile setup.
776 - The distribution is tarred up with mode 755 now by the `dist*' targets.
777 This fixes a race condition where untrusted users could modify files
778 in the $(PACKAGE)-$(VERSION) distdir before packing if the toplevel
779 build directory was world-searchable. This is CVE-2009-4029.
781 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
785 * Version requirements:
787 - Autoconf 2.62 or greater is required.
789 * Changes to aclocal:
791 - The autoconf version check implemented by aclocal in aclocal.m4
792 (and new in Automake 1.10) is degraded to a warning. This helps
793 in the common case where the Autoconf versions used are compatible.
795 * Changes to automake:
797 - The automake program can run multiple threads for creating most
798 Makefile.in files concurrently, if at least Perl 5.7.2 is available
799 with interpreter-based threads enabled. Set the environment variable
800 AUTOMAKE_JOBS to the maximum number of threads to use, in order to
801 enable this experimental feature.
803 * Changes to Libtool support:
805 - Libtool generic flags are now passed to the install and uninstall
808 - distcheck works with Libtool 2.x even when LT_OUTPUT is used, as
809 config.lt is removed correctly now.
813 - subdir-object mode works now with Fortran (F77, FC, preprocessed
814 Fortran, and Ratfor).
816 - For files with extension .f90, .f95, .f03, or .f08, the flag
817 $(FCFLAGS_f[09]x) computed by AC_FC_SRCEXT is now used in compile rules.
819 - Files with extension .sx are also treated as preprocessed assembler.
821 - The default source file extension (.c) can be overridden with
822 AM_DEFAULT_SOURCE_EXT now.
824 - Python 3.0 is supported now, Python releases prior to 2.0 are no
827 - AM_PATH_PYTHON honors python's idea about the site directory.
829 - There is initial support for the Vala programming language, when using
832 * Miscellaneous changes:
834 - Automake development is done in a git repository on Savannah now, see
836 http://git.sv.gnu.org/gitweb/?p=automake.git
838 A read-only CVS mirror is provided at
840 cvs -d :pserver:anonymous@pserver.git.sv.gnu.org:/automake.git \
841 checkout -d automake HEAD
843 - "make dist" can now create xz-compressed tarballs,
844 as well as (deprecated?) lzma-compressed tarballs.
846 - `automake --add-missing' will by default install the GPLv3 file as
847 COPYING if it is missing. It will also warn that the license file
848 should be added to source control. Note that Automake will never
849 overwrite an existing COPYING file, even when the `--force-missing'
852 - The manual is now distributed under the terms of the GNU FDL 1.3.
854 - Automake ships and installs man pages for automake and aclocal now.
856 - New shorthand `$(pkglibexecdir)' for `$(libexecdir)/@PACKAGE@'.
858 - install-sh supports -C, which does not update the installed file
859 (and its time stamps) if the contents did not change.
861 - The `gnupload' script has been revamped.
863 - The `depcomp' and `compile' scripts now work with MSVC under MSYS.
865 - The targets `install' and `uninstall' are more efficient now, in that
866 for example multiple files from one Automake variable such as
867 `bin_SCRIPTS' are copied in one `install' (or `libtool --mode=install')
868 invocation if they do not have to be renamed.
870 Both install and uninstall may sometimes enter (`cd' into) the target
871 installation directory now, when no build-local scripts are used.
873 Both install and uninstall do not fail anymore but do nothing if an
874 installation directory variable like `bindir' is set to the empty string.
876 For built-in rules, `make install' now fails reliably if installation
877 of a file failed. Conversely, `make uninstall' even succeeds when
878 issued multiple times.
880 These changes may need some adjustments from users: For example,
881 some `install' programs refuse to install multiple copies of the
882 same file in one invocation, so you may need to remove duplicate
883 entries from file lists.
885 Also, within one set of files, say, nobase_data_DATA, the order of
886 installation may be changed, or even unstable among different hosts,
887 due to the use of associative arrays in awk. The increased use of
888 awk matches a similar move in Autoconf to provide for better scaling.
890 Further, most undocumented per-rule install command variables such as
891 binSCRIPT_INSTALL have been removed because they are not needed any
892 more. Packages which use them should be using the appropriate one of
893 INSTALL_{DATA,PROGRAM,SCRIPT} or their install_sh_{DATA,PROGRAM,SCRIPT}
894 counterpart, depending on the type of files and the need for automatic
895 target directory creation.
897 - The "deleted header file problem" for *.m4 files is avoided by
898 stub rules. This allows `make' to trigger a rerun of `aclocal'
899 also if some previously needed macro file has been removed.
901 - Rebuild rules now also work for a removed `subdir/Makefile.in' in
902 an otherwise up to date tree.
904 - The `color-tests' option causes colored test result output on terminals.
906 - The `parallel-tests' option enables a new test driver that allows for
907 parallel test execution, inter-test dependencies, lazy test execution
908 for unit-testing, re-testing only failed tests, and formatted result output
909 as RST (reStructuredText) and HTML. Enabling this option may require some
910 changes to your test suite setup; see the manual for details.
912 - The `silent-rules' option enables Linux kernel-style silent build output.
913 This option requires the widely supported but non-POSIX `make' feature
914 of recursive variable expansion, so do not use it if your package needs
915 to build with `make' implementations that do not support it.
917 To enable less verbose build output, the developer has to use the Automake
918 option `silent-rules' in `AM_INIT_AUTOMAKE', or call the `AM_SILENT_RULES'
919 macro. The user may then set the default verbosity by passing the
920 `--enable-silent-rules' option to `configure'. At `make' run time, this
921 default may be overridden using `make V=0' for less verbose, and `make V=1'
922 for backward-compatible verbose output.
924 - New prefix `notrans_' for manpages which should not be transformed
925 by --program-transform.
927 - New macro AM_COND_IF for conditional evaluation and conditional
930 - For AC_CONFIG_LINKS, if source and destination are equal, do not
931 remove the file in a non-VPATH build. Such setups work with Autoconf
934 - AM_MAINTAINER_MODE now allows for an optional argument specifying
937 - AM_SUBST_NOTMAKE may prevent substitution of AC_SUBSTed variables,
938 useful especially for multi-line values.
940 - Automake's early configure-time sanity check now diagnoses an
941 unsafe absolute source directory name and makes configure fail.
943 - The Automake macros and rules cope better with whitespace in the
944 current directory name, as long as the relative path to `configure'
945 does not contain whitespace. To this end, the values of `$(MISSING)'
946 and `$(install_sh)' may contain suitable quoting, and their expansion
947 might need `eval'uation if used outside of a makefile. These
948 undocumented variables may be used in several documented macros such
949 as $(AUTOCONF) or $(MAKEINFO).
953 * Long-standing bugs:
955 - Fix aix dependency tracking for libtool objects.
957 - Work around AIX sh quoting issue in AC_PROG_CC_C_O, leading to
958 unnecessary use of the `compile' script.
960 - For nobase_*_LTLIBRARIES with nonempty directory components, the
961 correct `-rpath' argument is used now.
963 - `config.status --file=Makefile depfiles' now also works with the
964 extra quoting used internally by Autoconf 2.62 and newer
965 (it used to work only without the `--file=' bit).
967 - The `missing' script works better with versioned tool names.
969 - Semantics for `missing help2man' have been revamped:
971 Previously, if `help2man' was not present, `missing help2man' would have
972 the following semantics: if some man page was out of date but present, then
973 a warning would be printed, but the exit status was 0. If the man page was
974 not present at all, then `missing' would create a replacement man page
975 containing an error message, and exit with a status of 2. This does not play
976 well with `make': the next run will see this particular man page as being up
977 to date, and will only error out on the next generated man page, if any;
978 repeat until all pages are done. This was not desirable.
980 These are the new semantics: if some man page is not present, and help2man
981 is not either, then `missing' will warn and generate the replacement page
982 containing the error message, but exit successfully. However, `make dist'
983 will ensure that no such bogus man pages are packaged into a tarball.
985 - Targets provided by automake behave better with `make -n', in that they
986 take care not to create files.
988 - `config.status Makefile... depfiles' works fine again in the presence of
989 disabled dependency tracking.
991 - The default no-op recursive rules for these targets also work with BSD make
992 now: html, install-html, install-dvi, install-pdf, install-pdf, install-info.
994 - `make distcheck' works also when both a directory and some file below it
995 have been added to a distribution variable, such as EXTRA_DIST or *_SOURCES.
997 - Texinfo dvi, ps, pdf, and html output files are not removed upon
998 `make mostlyclean' any more; only the LaTeX by-products are.
1000 - Renamed objects also work with the `subdir-objects' option and
1001 source file languages which Automake does not know itself.
1003 - `automake' now correctly complains about variable assignments which are
1004 preceded by a comment, extend over multiple lines with backslash-escaped
1005 newlines, and end in a comment sign. Previous versions would silently
1006 and wrongly ignore such assignments completely.
1008 * Bugs introduced by 1.10:
1010 - Fix output of dummy dependency files in presence of post-processed
1011 Makefile.in's again, but also cope with long lines.
1013 - $(EXEEXT) is automatically appended to filenames of XFAIL_TESTS
1014 that have been declared as programs in the same Makefile.
1015 This is for consistency with the analogous change to TESTS in 1.10.
1017 - Fix order of standard includes to again be `-I. -I$(srcdir)',
1018 followed by directories containing config headers.
1020 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1024 * Version requirements:
1026 - Autoconf 2.60 or greater is required.
1028 - Perl 5.6 or greater is required.
1030 * Changes to aclocal:
1032 - aclocal now also supports -Wmumble and -Wno-mumble options.
1034 - `dirlist' entries (for the aclocal search path) may use shell
1035 wildcards such as `*', `?', or `[...]'.
1037 - aclocal supports an --install option that will cause system-wide
1038 third-party macros to be installed in the local directory
1039 specified with the first -I flag. This option also uses #serial
1040 lines in M4 files to upgrade local macros.
1042 The new aclocal options --dry-run and --diff help to review changes
1043 before they are installed.
1045 - aclocal now outputs an autoconf version check in aclocal.m4 in
1046 projects using automake.
1048 For a few years, automake and aclocal have been calling autoconf
1049 (or its underlying engine autom4te) to accurately retrieve the
1050 data they need from configure.ac and its siblings. Doing so can
1051 only work if all autotools use the same version of autoconf. For
1052 instance a Makefile.in generated by automake for one version of
1053 autoconf may stop working if configure is regenerated with another
1054 version of autoconf, and vice versa.
1056 This new version check ensures that the whole build system has
1057 been generated using the same autoconf version.
1059 * Support for new Autoconf macros:
1061 - The new AC_REQUIRE_AUX_FILE Autoconf macro is supported.
1063 - If `subdir-objects' is set, and AC_CONFIG_LIBOBJ_DIR is specified,
1064 $(LIBOBJS), $(LTLIBOBJS), $(ALLOCA), and $(LTALLOCA) can be used
1065 in different directories. However, only one instance of such a
1066 library objects directory is supported.
1068 * Change to Libtool support:
1070 - Libtool generic flags (those that go before the --mode=MODE option)
1071 can be specified using AM_LIBTOOLFLAGS and target_LIBTOOLFLAGS.
1073 * Yacc and Lex changes:
1075 - The rebuild rules for distributed Yacc and Lex output will avoid
1076 overwriting existing files if AM_MAINTAINER_MODE and maintainer-mode
1079 - ylwrap is now always used for lex and yacc source files,
1080 regardless of whether there is more than one source per directory.
1082 * Languages changes:
1084 - Preprocessed assembler (*.S) compilation now honors CPPFLAGS,
1085 AM_CPPFLAGS and per-target _CPPFLAGS, and supports dependency
1086 tracking, unlike non-preprocessed assembler (*.s).
1088 - subdir-object mode works now with Assembler. Automake assumes
1089 that the compiler understands `-c -o'.
1091 - Preprocessed assembler (*.S) compilation now also honors
1092 $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES).
1094 - Improved support for Objective C:
1095 - Autoconf's new AC_PROG_OBJC will enable automatic dependency tracking.
1096 - A new section of the manual documents the support.
1098 - New support for Unified Parallel C:
1099 - AM_PROG_UPC looks for a UPC compiler.
1100 - A new section of the manual documents the support.
1102 - Per-target flags are now correctly handled in link rules.
1104 For instance maude_CFLAGS correctly overrides AM_CFLAGS; likewise
1105 for maude_LDFLAGS and AM_LDFLAGS. Previous versions bogusly
1106 preferred AM_CFLAGS over maude_CFLAGS while linking, and they
1107 used both AM_LDFLAGS and maude_LDFLAGS on the same link command.
1109 The fix for compiler flags (i.e., using maude_CFLAGS instead of
1110 AM_CFLAGS) should not hurt any package since that is how _CFLAGS
1111 is expected to work (and actually works during compilation).
1113 However using maude_LDFLAGS "instead of" AM_LDFLAGS rather than
1114 "in addition to" breaks backward compatibility with older versions.
1115 If your package used both variables, as in
1117 AM_LDFLAGS = common flags
1118 bin_PROGRAMS = a b c
1119 a_LDFLAGS = more flags
1122 and assumed *_LDFLAGS would sum up, you should rewrite it as
1124 AM_LDFLAGS = common flags
1125 bin_PROGRAMS = a b c
1126 a_LDFLAGS = $(AM_LDFLAGS) more flags
1129 This new behavior of *_LDFLAGS is more coherent with other
1130 per-target variables, and the way *_LDFLAGS variables were
1131 considered internally.
1133 * New installation targets:
1135 - New targets mandated by GNU Coding Standards:
1140 By default they will only install Texinfo manuals.
1141 You can customize them with *-local variants:
1147 - The undocumented recursive target `uninstall-info' no longer exists.
1148 (`uninstall' is in charge of removing all possible documentation
1149 flavors, including optional formats such as dvi, ps, or info even
1150 when `no-installinfo' is used.)
1152 * Miscellaneous changes:
1154 - Automake no longer complains if input files for AC_CONFIG_FILES
1155 are specified using shell variables.
1157 - clean, distribution, or rebuild rules are normally disabled for
1158 inputs and outputs of AC_CONFIG_FILES, AC_CONFIG_HEADERS, and
1159 AC_CONFIG_LINK specified using shell variables. However, if these
1160 variables are used as ${VAR}, and AC_SUBSTed, then Automake will
1161 be able to output rules anyway.
1162 (See the Automake documentation for AC_CONFIG_FILES.)
1164 - $(EXEEXT) is automatically appended to filenames of TESTS
1165 that have been declared as programs in the same Makefile.
1166 This is mostly useful when some check_PROGRAMS are listed in TESTS.
1168 - `-Wportability' has finally been turned on by default for `gnu' and
1169 `gnits' strictness. This means, automake will complain about %-rules
1170 or $(GNU Make functions) unless you switch to `foreign' strictness or
1171 use `-Wno-portability'.
1173 - Automake now uses AC_PROG_MKDIR_P (new in Autoconf 2.60), and uses
1174 $(MKDIR_P) instead of $(mkdir_p) to create directories. The
1175 $(mkdir_p) variable is still defined (to the same value as
1176 $(MKDIR_P)) but should be considered obsolete. If you are using
1177 $(mkdir_p) in some of your rules, please plan to update them to
1178 $(MKDIR_P) at some point.
1180 - AM_C_PROTOTYPES and ansi2knr are now documented as being obsolete.
1181 They still work in this release, but may be withdrawn in a future one.
1183 - Inline compilation rules for gcc3-style dependency tracking are
1186 - Automake installs a "Hello World!" example package in $(docdir).
1187 This example is used throughout the new "Autotools Introduction"
1188 chapter of the manual.
1190 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1194 * Makefile.in bloat reduction:
1196 - Inference rules are used to compile sources in subdirectories when
1197 the `subdir-objects' option is used and no per-target flags are
1198 used. This should reduce the size of some projects a lot, because
1199 Automake used to output an explicit rule for each such object in
1202 - Automake no longer outputs three rules (.o, .obj, .lo) for each
1203 object that must be built with explicit rules. It just outputs
1204 the rules required to build the kind of object considered: either
1205 the two .o and .obj rules for usual objects, or the .lo rule for
1208 * Change to Libtool support:
1210 - Libtool tags are used with libtool versions that support them.
1211 (I.e., with Libtool 1.5 or greater.)
1213 - Automake is now able to handle setups where a libtool library is
1214 conditionally installed in different directories, as in
1217 lib_LTLIBRARIES = liba.la
1219 pkglib_LTLIBRARIES = liba.la
1221 liba_la_SOURCES = ...
1223 * Changes to aclocal:
1225 - aclocal now ensures that AC_DEFUNs and AU_DEFUNs it discovers are
1226 really evaluated, before it decides to include them in aclocal.m4.
1227 This solves nasty problems with conditional redefinitions of
1228 Autoconf macros in /usr/share/aclocal/*.m4 files causing extraneous
1229 *.m4 files to be included in any project using these macros.
1230 (Calls to AC_PROG_EGREP causing libtool.m4 to be included is the
1231 most famous instance of this bug.)
1233 - Do not complain about missing conditionally AC_REQUIREd macros
1234 that are not actually used. In 1.8.x aclocal would correctly
1235 determine which of these macros were really needed (and include
1236 only these in the package); unfortunately it would also require
1237 all of them to be present in order to run. This created
1238 situations were aclocal would not work on a tarball distributing
1239 all the macros it uses. For instance running aclocal on a project
1240 containing only the subset of the Gettext macros in use by the
1241 project did not work, because gettext conditionally requires other
1244 * Portability improvements:
1246 - Tar format can be chosen with the new options tar-v7, tar-ustar, and
1247 tar-pax. The new option filename-length-max=99 helps diagnosing
1248 filenames that are too long for tar-v7. (PR/414)
1250 - Variables aumented with `+=' are now automatically flattened (i.e.,
1251 trailing backslashes removed) and then wrapped around 80 colummns
1252 (adding trailing backslashes). In previous versions, a long series
1258 would result in a single-line definition of VAR that could possibly
1259 exceed the maximum line length of some make implementations.
1261 Non-augmented variables are still output as they are defined in
1266 - Support Fortran 90/95 with the new "fc" and "ppfc" languages.
1267 Works the same as the old Fortran 77 implementation; just replace
1268 F77 with FC everywhere (exception: FFLAGS becomes FCFLAGS).
1269 Requires a version of autoconf which provides AC_PROG_FC (>=2.59).
1271 - Support for conditional _LISP.
1273 - Support for conditional -hook and -local rules (PR/428).
1275 - Diagnose AC_CONFIG_AUX_DIR calls following AM_INIT_AUTOMAKE. (PR/49)
1277 - Automake will not write any Makefile.ins after the first error it
1278 encounters. The previous Makefile.ins (if any) will be left in
1279 place. (Warnings will not prevent output, but remember they can
1280 be turned into errors with -Werror.)
1282 - The restriction that SUBDIRS must contain direct children is gone.
1285 - The manual tells more about SUBDIRS vs. DIST_SUBDIRS.
1286 It also gives an example of nested packages using AC_CONFIG_SUBDIRS.
1288 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1290 Bugs fixed in 1.8.5:
1292 * Long-standing bugs:
1294 - Define DIST_SUBDIRS even when the `no-dist' or `cygnus' options are used
1295 so that `make distclean' and `make maintainer-clean' can work.
1297 - Define AR and ARFLAGS even when only EXTRA_LIBRARIES are defined.
1299 - Fix many rules to please FreeBSD make, which runs commands with `sh -e'.
1301 - Polish diagnostic when no input file is found.
1303 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1305 Bugs fixed in 1.8.4:
1307 * Long-standing bugs:
1309 - Fix AM_PATH_PYTHON to correctly display $PYTHON when it has been
1310 overridden by the user.
1312 - Honor PATH_SEPARATOR in various places of the Automake package, for
1315 - Adjust dependency tracking mode detection to ICC 8.0's new output.
1318 - Fix install-sh so it can install the `mv' binary... using `mv'.
1320 - Fix tru64 dependency tracking for libtool objects.
1322 - Work around Exuberant Ctags when creating a TAGS files in a directory
1323 without files to scan but with subdirectories to include.
1325 * Bugs introduced by 1.8:
1327 - Fix an "internal error" when @LIBOBJS@ is used in a variable that is
1328 not defined in the same conditions as the _LDADD that uses it.
1330 - Do not warn when JAVAROOT is overridden, this is legitimate.
1332 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1334 Bugs fixed in 1.8.3:
1336 * Long-standing bugs:
1338 - Quote filenames in installation rules, in case $DESTDIR, $prefix,
1339 or any of the other *dir variables contain a space.
1341 Please note that Automake does not and cannot support spaces in
1342 filenames that are involved during the build. This change affects
1343 only installation paths, so that `make install' does not bomb out
1344 in packages configured with
1345 ./configure --prefix '/c/Program Files'
1347 - Fix the depfiles output so it works with GNU sed (<4.1) even when
1348 POSIXLY_CORRECT is set.
1350 - Do not AC_SUBST(LIBOBJS) in AM_WITH_REGEX. This macro was unusable
1351 since Autoconf 2.54, which defines LIBOBJS itself.
1353 - Fix a potential (but unlikely) race condition in parallel elisp
1354 builds. (Introduced in 1.7.3.)
1356 - Do not assume that users override _DEPENDENCIES in all conditions
1357 where Automake will try to define them.
1359 - Do not use `mkdir -p' in mkinstalldirs, unless this is GNU mkdir.
1360 Solaris 8's `mkdir -p' is not thread-safe and can break parallel
1363 This fix also affects the $(mkdir_p) variable defined since
1364 Automake 1.8. It will be set to `mkdir -p' only if mkdir is GNU
1365 mkdir, and to `mkinstalldirs' or `install-sh -d' otherwise.
1367 - Secure temporary directory creation in `make distcheck'. (PR/413)
1369 - Do not generate two build rules for `parser.h' when the
1370 parser appears in two different conditionals.
1372 - Work around a Solaris 8 /bin/sh bug in the test for dependency
1373 checking. Usually ./configure will not pick this shell; so this
1374 fix only helps cases where the shell is forced to /bin/sh.
1376 * Bugs introduced by 1.8:
1378 - In some situations (hand-written `m4_include's), aclocal would
1379 call the `File::Spec->rel2abs' method, which was only introduced
1380 in Perl 5.6. This new version reestablish support Perl 5.005.
1382 It is likely that the next major Automake releases will require at
1383 least Perl 5.6. Consider upgrading your development environment
1384 if you are still using the five-year-old Perl 5.005.
1386 - Automake would sometimes fail to define rules for targets listed
1387 in variables defined in multiple conditions. For instance on
1393 it would define only the `a.$(OBJEXT): a.c' rule and omit the
1394 `b.$(OBJEXT): b.c' rule.
1396 * New sections in manual:
1398 - Third-Party Makefiles: how to interface third party Makefiles.
1399 - Upgrading: upgrading packages to newer Automake versions.
1400 - Multiple Outputs: handling tools that produce many outputs.
1402 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1406 * A (well known) portability bug slipped in the changes made to
1407 install-sh in Automake 1.8.1. The broken install-sh would refuse to
1408 install anything on Tru64.
1410 * Fix install rules for conditionally built python files. (This never
1413 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1417 * Bugs introduced by 1.8:
1419 - Fix Config.pm import error with old Perl versions (at least
1420 5.005_03). One symptom is that aclocal could not find its macro
1423 - Automake 1.8 used `mkdir -m 0755 -p --' to ensure that directories
1424 created by `make install' are always world readable, even if the
1425 installer happens to have an overly restrictive umask (e.g. 077).
1426 This was a mistake and has been reverted. There are at least two
1427 reasons why we must not use `-m 0755':
1428 - it causes special bits like SGID to be ignored,
1429 - it may be too restrictive (some setups expect 775 directories).
1431 - Fix aclocal to honor definitions located in files which have been
1432 m4_included manually. aclocal 1.8 had been updated to check
1433 m4_included files for new requirements, but forgot that these
1434 m4_included files can also provide new definitions.
1436 Note that if you have such a setup, we recommend you get rid of
1437 it. In the past, there was a reason to m4_include files manually:
1438 aclocal used to duplicate entire M4 files into aclocal.m4, even
1439 files that were distributed. Some packages were therefore
1440 m4_including the distributed file directly, and playing some
1441 tricks to ensure aclocal would not copy that file to aclocal.m4,
1442 in order to limit the amount of duplication. Since aclocal 1.8.x
1443 will precisely output m4_includes for local M4 files, we recommend
1444 that you clean up your setup, removing all manual m4_includes and
1445 letting aclocal output them.
1447 - Output detailed menus in the Info version if the Automake manual,
1448 so that Emacs can locate the indexes.
1450 - configure.ac and configure were listed twice in DIST_COMMON (an
1451 internal variable where Automake lists configury files to
1452 distribute). This was harmless, but unaesthetic.
1454 - Use `chmod a-w' instead of `chmod -w' as the latter honors umask.
1455 This was an issue only in the Automake package itself, not in
1458 - Automake assumed that all AC_CONFIG_LINKS arguments had the form
1459 DEST:SRC. This was wrong, as some packages do
1460 AC_CONFIG_LINKS($computedlinks). This version no longer abort in
1463 - Contrary to mkinstalldirs, $(mkdir_p) was expecting exactly one
1464 argument. This caused two kinds of failures:
1465 - Rules installing data in a conditionally defined directory
1466 failed when that directory was undefined. In this case no
1467 argument was supplied.
1468 - `make installdirs' failed, because several directories were
1469 passed to $(mkdir_p). This was an issue only on platform
1470 were $(mkdir_p) is implemented with `install-sh -d'.
1471 $(mkdir_p) as been changed to accept 0 or more arguments, as
1474 * Long-standing bugs:
1476 - Fix an unexpected diagnostic occurring when users attempt
1477 to override some internal variables that Automake appends to.
1479 - aclocal now scans configure.ac for macro definitions (PR/319).
1481 - Fix a portability issue with OSF1/Tru64 Make. If a directory
1482 distributes files which are outside itself (this usually occurs
1483 when using AC_CONFIG_AUX_DIR([../dir]) to use auxiliary files
1484 from a parent package), then `make distcheck' fails due to an
1485 optimization performed by OSF1/Tru64 Make in its VPATH handling.
1486 (tests/subpkg2.test failure)
1488 - Fix another portability issue with Sun and OSF1/Tru64 Make.
1489 In a VPATH-build configuration, `make install' would install
1490 nobase_ files to wrong locations.
1492 - Fix a Perl `uninitialized value' diagnostic occurring when
1493 automake complains that a Texinfo file does not have a
1494 @setfilename statement.
1496 - Erase config.status.lineno during `make distclean'. This file
1497 can be created by config.status. Automake already knew about
1498 configure.lineno, but forgot config.status.lineno.
1500 - Distribute all files, even those which are built and installed
1501 conditionally. This change affects files listed in conditionally
1502 defined *_HEADERS and *_PYTHON variable (unless they are nodist_*)
1503 as well as those listed in conditionally defined dist_*_DATA,
1504 dist_*_JAVA, dist_*_LISP, and dist_*_SCRIPTS variables.
1506 - Fix AM_PATH_LISPDIR to avoid \? in sed regular expressions; it
1507 doesn't conform to POSIX.
1509 - Normalize help strings for configure variables and options added
1514 - Check for python2.4 in AM_PATH_PYTHON.
1516 * Spurious failures in test suite:
1518 - tests/libtool5.test, tests/ltcond.test, tests/ltcond2.test,
1519 tests/ltconv.test: fix failures with CVS Libtool.
1520 - tests/aclocal6.test: fix failure if autom4te.cache is disabled.
1521 - tests/txinfo24.test, tests/txinfo25.test, tests/txinfo28.test:
1522 fix failures with old Texinfo versions.
1524 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1530 - The NEWS file is more verbose.
1534 - Autoconf 2.58 or greater is required.
1538 - Default source file names in the absence of a _SOURCES declaration
1539 are made by removing any target extension before appending `.c', so
1540 to make the libtool module `foo.la' from `foo.c', you only need to
1543 lib_LTLIBRARIES = foo.la
1544 foo_la_LDFLAGS = -module
1546 For backward compatibility, foo_la.c will be used instead of
1547 foo.c if this file exists or is the explicit target of a rule.
1548 However -Wobsolete will warn about this deprecated naming.
1550 - AR's `cru' flags are now set in a global ARFLAGS variable instead
1551 of being hard-coded in each $(AR) invocation, so they can be
1552 substituted from configure.ac. This has been requested by people
1553 dealing with non-POSIX ar implementations.
1555 - New warning option: -Woverride. This will warn about any user
1556 target or variable definitions which override Automake
1559 - Texinfo rules back up and restore info files when makeinfo fails.
1561 - Texinfo rules now support the `html' target.
1562 Running this requires Texinfo 4.0 or greater.
1564 `html' is a new recursive target, so if your package mixes
1565 hand-crafted `Makefile.in's with Automake-generated
1566 `Makefile.in's, you should adjust the former to support (or
1567 ignore) this target so that `make html' recurses successfully. If
1568 you had a custom `html' rule in your `Makefile.am', it's better to
1569 rename it as `html-local', otherwise your rule will override
1570 Automake's new rule (you can check that by running `automake
1571 -Woverride') and that will stop the recursion to subdirectories.
1573 Last but not least, this `html' rule is declared PHONY, even when
1574 overridden. Fortunately, it appears that few packages use a
1575 non-PHONY `html' rule.
1577 - Any file which is m4_included from configure.ac will appear as a
1578 configure and Makefile.in dependency, and will be automatically
1581 - The rules for rebuilding Makefiles and Makefile.ins will now
1582 rebuild all Makefiles and all Makefile.ins at once when one of
1583 configure's dependencies has changed. This is considerably faster
1584 than previous implementations, where config.status and automake
1585 were run separately in each directory (this still happens when you
1586 change a Makefile.am locally, without touching configure.ac or
1587 friends). Doing this also solves a longstanding issue: these
1588 rebuild rules failed to work when adding new directories to the
1589 tree, forcing you to run automake manually.
1591 - For similar reasons, the rules to rebuild configure,
1592 config.status, and aclocal.m4 are now defined in all directories.
1593 Note that if you were using the CONFIG_STATUS_DEPENDENCIES and
1594 CONFIGURE_DEPENDENCIES (formerly undocumented) variables, you
1595 should better define them in all directories. This is easily done
1596 using an AC_SUBST (make sure you prefix these dependencies with
1597 $(top_srcdir) since this variable will appear at different
1598 levels of the build tree).
1600 - aclocal will now use `m4_include' instead of copying local m4
1601 files into aclocal.m4. (Local m4 files are those you ship with
1602 your project, other files will be copied as usual.)
1604 Because m4_included files are automatically distributed, it means
1605 for most projects there is no point in EXTRA_DISTing the list of
1606 m4 files which are used. (You can probably get rid of
1607 m4/Makefile.am if you had one.)
1609 - aclocal will avoid touching aclocal.m4 when possible, so that
1610 Autom4te's cache isn't needlessly invalidated. This behavior can
1611 be switched off with the new `--force' option.
1613 - aclocal now uses Autoconf's --trace to detect macros which are
1614 actually used and will no longer include unused macros simply
1615 because they where mentioned. This was often the case for macros
1616 called conditionally.
1618 - New options no-dist and no-dist-gzip.
1620 - compile, depcomp, elisp-comp, install-sh, mdate-sh, mkinstalldirs,
1621 py-compile, and ylwrap, now all understand --version and --help.
1623 - Automake will now recognize AC_CONFIG_LINKS so far as removing created
1624 links as part of the distclean target and including source files in
1627 - AM_PATH_PYTHON now supports ACTION-IF-FOUND and ACTION-IF-NOT-FOUND
1628 argument. The latter can be used to override the default behavior
1629 (which is to abort).
1631 - Automake will exit with $? = 63 on version mismatch. (So does
1632 Autoconf 2.58) missing knows this, and in this case it will
1633 emulate the tools as if they were absent. Because older versions
1634 of Automake and Autoconf did not use this exit code, this change
1635 will only be useful in projects generated with future versions of
1638 - When using AC_CONFIG_FILES with multiple input files, Automake
1639 generates the first ".in" input file for which a ".am" exists.
1640 (Former versions would try to use only the first input file.)
1642 - lisp_DATA is now allowed. If you are using the empty ELCFILES
1643 idiom to disable byte-compilation of lisp_LISP files, it is
1644 recommended that you switch to using lisp_DATA. Note that
1645 this is not strictly equivalent: lisp_DATA will install elisp
1646 files even if emacs is not installed, while *_LISP do not
1647 install anything unless emacs is found.
1649 - Makefiles will prefer `mkdir -p' over mkinstalldirs if it is
1650 available. This selection is achieved through the Makefile
1651 variable $(mkdir_p) that is set by AM_INIT_AUTOMAKE to either
1652 `mkdir -m 0755 -p --', `$(mkinstalldirs) -m 0755', or
1653 `$(install_sh) -m 0755 -d'.
1657 - Because `mkdir -p' is available on most platforms, and we can use
1658 `install-sh -d' when it is not, the use of the mkinstalldirs
1659 script is being phased out. `automake --add-missing' no longer
1660 installs it, and if you remove mkinstalldirs from your package,
1661 automake will define $(mkinstalldirs) as an alias for $(mkdir_p).
1663 Gettext 0.12.1 still requires mkinstalldirs. Fortunately
1664 gettextize and autopoint will install it when needed. Automake
1665 will continue to define the $(mkinstalldirs) and to distribute
1666 mkinstalldirs when this script is in the source tree.
1668 - AM_PROG_CC_STDC is now empty. The content of this macro was
1669 merged in AC_PROG_CC. If your code uses $am_cv_prog_cc_stdc, you
1670 should adjust it to use $ac_cv_prog_cc_stdc instead. (This
1671 renaming should be safe, even if you have to support several,
1672 versions of Automake, because AC_PROG_CC defines this variable
1673 since Autoconf 2.54.)
1675 - Some users where using the undocumented ACLOCAL_M4_SOURCES
1676 variable to override the aclocal.m4 dependencies computed
1677 (inaccurately) by older versions of Automake. Because Automake
1678 now tracks configure's m4 dependencies accurately (see m4_include
1679 above), the use of ACLOCAL_M4_SOURCES should be considered
1680 obsolete and will be flagged as such when running `automake
1685 - Defining programs conditionally using Automake conditionals no
1686 longer leads to a combinatorial explosion. The following
1687 construct used to be troublesome when used with dozens of
1702 Likewise for _SOURCES, _LDADD, and _LIBADD variables.
1704 - Due to implementation constraints, previous versions of Automake
1705 proscribed multiple conditional definitions of some variables
1715 All _PROGRAMS, _LDADD, and _LIBADD variables were affected.
1716 This restriction has been lifted, and these variables now
1717 support multiple conditional definitions as do other variables.
1719 - Cleanup the definitions of $(distdir) and $(top_distdir).
1720 $(top_distdir) now points to the root of the distribution
1721 directory created during `make dist', as it did in Automake 1.4,
1722 not to the root of the build tree as it did in intervening
1723 versions. Furthermore these two variables are now only defined in
1724 the top level Makefile, and passed to sub-directories when running
1727 - The --no-force option now correctly checks the Makefile.in's
1728 dependencies before deciding not to update it.
1730 - Do not assume that make files are called Makefile in cleaning rules.
1732 - Update .info files in the source tree, not in the build tree. This
1733 is what the GNU Coding Standard recommend. Only Automake 1.7.x
1734 used to update these files in the build tree (previous versions did
1735 it in the source tree too), and it caused several problems, varying
1736 from mere annoyance to portability issues.
1738 - COPYING, COPYING.LIB, and COPYING.LESSER are no longer overwritten
1739 when --add-missing and --force-missing are used. For backward
1740 compatibility --add-missing will continue to install COPYING (in
1741 `gnu' strictness) when none of these three files exist, but this
1742 use is deprecated: you should better choose a license yourself and
1743 install it once for all in your source tree (and in your code
1746 - Fix ylwrap so that it does not overwrite header files that haven't
1747 changed, as the inline rule already does.
1749 - User-defined rules override automake-defined rules for the same
1750 targets, even when rules do not have commands. This is not new
1751 (and was documented), however some of the automake-generated
1752 rules have escaped this principle in former Automake versions.
1753 Rules for the following targets are affected by this fix:
1755 clean, clean-am, dist-all, distclean, distclean-am, dvi, dvi-am,
1756 info, info-am, install-data-am, install-exec-am, install-info,
1757 install-info-am, install-man, installcheck-am, maintainer-clean,
1758 maintainer-clean-am, mostlyclean, mostlyclean-am, pdf, pdf-am,
1759 ps, ps-am, uninstall-am, uninstall-info, uninstall-man
1761 Practically it means that an attempt to supplement the dependencies
1762 of some target, as in
1764 clean: my-clean-rule
1766 will now *silently override* the automake definition of the
1767 rule for this target. Running `automake -Woverride' will diagnose
1768 all such overriding definitions.
1770 It should be noted that almost all of these targets support a *-local
1771 variant that is meant to supplement the automake-defined rule
1772 (See node `Extending' in the manual). The above rule should
1775 clean-local: my-clean-rule
1777 These *-local targets have been documented since at least
1778 Automake 1.2, so you should not fear the change if you have
1779 to support multiple automake versions.
1783 - The Automake manual is now distributed under the terms of the GNU FDL.
1785 - Targets dist-gzip, dist-bzip2, dist-tarZ, dist-zip are always defined.
1787 - core dumps are no longer removed by the cleaning rules. There are
1788 at least three reasons for this:
1789 1. These files should not be created by any build step,
1790 so their removal do not fit any of the cleaning rules.
1791 Actually, they may be precious to the developer.
1792 2. If such file is created during a build, then it's clearly a
1793 bug Automake should not hide. Not removing the file will
1794 cause `make distcheck' to complain about its presence.
1795 3. Operating systems have different naming conventions for
1796 core dump files. A core file on one system might be a
1797 completely legitimate data file on another system.
1799 - RUNTESTFLAGS, CTAGSFLAGS, ETAGSFLAGS, JAVACFLAGS are no longer
1800 defined by Automake. This means that any definition in the
1801 environment will be used, unless overridden in the Makefile.am or
1802 on the command line. The old behavior, where these variables were
1803 defined empty in each Makefile, can be obtained by AC_SUBSTing or
1804 AC_ARG_VARing each variable from configure.ac.
1806 - CONFIGURE_DEPENDENCIES and CONFIG_STATUS_DEPENDENCIES are now
1807 documented. (The is not a new feature, these variables have
1808 been there since at least Automake 1.4.)
1810 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1812 Bugs fixed in 1.7.9:
1813 * Fix install-strip to work with nobase_ binaries.
1814 * Fix renaming of #line directives in ylwrap.
1815 * Rebuild with Autoconf 2.59. (1.7.8 was not installable with pdksh.)
1817 Bugs fixed in 1.7.8:
1818 * Remove spurious blank lines in cleaning rules introduced in 1.7.7.
1819 * Fix detection of Debian's install-info, broken since version 1.5.
1820 (Debian bug #213524).
1821 * Honor -module if it appears in AM_LDFLAGS (i.e., relax name checking)
1822 This was only done for libfoo_LDFLAGS and LDFLAGS in previous versions.
1824 Bugs fixed in 1.7.7:
1825 * The implementation of automake's --no-force option is unreliable,
1826 so this option is ignored in this version. A real fix will appear in
1827 Automake 1.8. (Debian Bug #206299)
1828 * AM_PATH_PYTHON: really check the whole list of interpreters if no
1829 argument is given. (PR/399)
1830 * Do not warn about leading `_' in variable names, even with -Wportability.
1831 * Support user redefinitions of TEXINFO_TEX.
1832 * depcomp: support AIX Compiler version 6.
1833 * Fix missing rebuilds during `make dist' with BSD make.
1834 (Could produce tarballs containing out-of-date files.)
1835 * Resurrect multilib support.
1836 * Noteworthy manual updates:
1837 - Extending aclocal: how to write m4 macros that won't trigger warnings
1839 - A Shared Library: Rewrite and split into subsections.
1841 Bugs fixed in 1.7.6:
1842 * Fix depcomp's icc mode for ICC 7.1.
1843 * Diagnose calls to AC_CONFIG_FILES and friends with not enough arguments.
1844 * Fix maintainer-clean's removal of autom4te.cache in VPATH builds.
1845 * Fix AM_PATH_LISPDIR to work with POSIXLY_CORRECT=1.
1846 * Fix the location reported in some diagnostics related to AUTOMAKE_OPTIONS.
1847 * Remove Latin-1 characters from elisp-comp.
1848 * Update the manual's @dircategory to match the Free Software Directory.
1850 Bugs fixed in 1.7.5:
1851 * Update install-sh's license to remove an advertising clause.
1852 (Debian bug #191717)
1853 * Fix a bug introduced in 1.7.4, related to BUILT_SOURCE handling,
1854 that caused invalid Makefile.ins to be generated.
1855 * Make sure AM_MAKE_INCLUDE doesn't fail when a `doit' file exists.
1856 * New FAQ entry: renamed objects.
1858 Bugs fixed in 1.7.4:
1859 * Tweak the TAGS rule to support Exuberant Ctags (in addition to
1860 the Emacs implementation)
1861 * Fix output of aclocal.m4 dependencies in subdirectories.
1862 * Use `mv -f' instead of `mv' in fastdep rules.
1863 * Upgrade mdate-sh to work on OS/2.
1864 * Don't byte-compile elisp files when ELCFILES is set empty.
1865 (this documented feature was broken by 1.7.3)
1866 * Diagnose trailing backslashes on last line of Makefile.am.
1867 * Diagnose whitespace following trailing backslashes.
1868 * Multiple tests are now correctly supported in DEJATOOL. (PR/388)
1869 * Fix rebuilt rules for AC_CONFIG_FILES([Makefile:Makefile.in:Makefile.bot])
1871 * `make install' will build `BUILT_SOURCES' first.
1872 * Minor documentation fixes.
1874 Bugs fixed in 1.7.3:
1875 * Fix stamp files numbering (when using multiple AC_CONFIG_HEADERS).
1876 * Query distutils for `pythondir' and `pythonexecdir', instead of
1877 using an hardcoded path. This should allow builds on 64-bit
1878 distributions that usually use lib64/ instead of lib/.
1879 * AM_PATH_PYTHON will also search for python2.3.
1880 * elisp files are now built all at once instead of one by one. Besides
1881 incurring a speed-up, this is required to support interdependent elisp files.
1882 * Support for DJGPP:
1883 - `make distcheck' will now work in `_inst/' and `_build' instead
1884 of `=inst/' and `=build/'
1885 - use `_dirstamp' when the file-system doesn't support `.dirstamp'
1886 - install/uninstall `*.i[0-9][0-9]'-style info files
1887 - more changes that affect only the Automake package (not its output)
1888 * Fix some incompatibilities with upcoming perl-5.10.
1889 * Properly quote AC_PACKAGE_TARNAME and AC_PACKAGE_VERSION when defining
1890 PACKAGE and VERSION.
1892 - dashmstdout and dashXmstdout modes: don't use `-o /dev/null', this
1893 is troublesome with gcc and Solaris compilers. (PR/385)
1894 - makedepend mode: work with Libtool. (PR/385 too)
1896 * better support for unusual gettext setups, such as multiple po/ directories
1898 - Flag missing po/ and intl/ directories as warnings, not errors.
1899 - Disable these warnings if po/ does not exist.
1900 * Noteworthy manual updates:
1902 - Document how AC_CONFIG_AUX_DIR interacts with missing files.
1904 - Document `AM_YFLAGS = -d'. (PR/382)
1906 Bugs fixed in 1.7.2:
1907 * Fix installation and uninstallation of Info files built in subdirectories.
1908 * Do not run `./configure --with-included-gettext' during `make distcheck'
1909 if AM_GNU_GETTEXT([external]) is used.
1910 * Correctly uninstall renamed man pages.
1911 * Do not strip escaped newline in variables defined in one condition
1912 and augmented in another condition.
1913 * Fix ansi2knr rules for LIBOBJS sources.
1914 * Clean all known Texinfo index files, not only those which appear to
1915 be used, because we cannot know which indexes are used in included files.
1916 (PR/375, Debian Bug #168671)
1917 * Honor only the first @setfilename seen in a Texinfo file.
1918 * Treat "required file X not found" diagnostics as errors (exit status 1).
1919 * Don't complain that a required file is not found when it is a Makefile
1921 * Don't use single suffix inference rules when building `.info'-less
1922 Info files, for the sake of Solaris make.
1923 * The `check' target now depends on `$(BUILT_SOURCES)'. (PR/359)
1924 * Recognize multiple inference rules such as `.a.b .c.d:'. (PR/371)
1925 * Warn about multiple inference rules when -Wportability is used. (PR/372)
1926 * Fix building of deansified files from subdirectories. (PR/370)
1927 * Add missing `fi' in the .c->.obj rules.
1928 * Improve install-sh to work even when names contain spaces or certain
1929 (but not all) shell metachars.
1930 * Fix the following spurious failures in the test suite:
1931 depcomp2.test, gnits2.test, gnits3.test, python3.test, texinfo13.test
1932 * Noteworthy manual updates:
1933 - Augment the section about BUILT_SOURCES.
1934 - Mention that AM_PROG_CC_STDC is a relic that is better avoided today.
1936 Bugs fixed in 1.7.1:
1937 * Honor `ansi2knr' for files built in subdirectories, or using per-targets
1939 * Aclocal should now recognize macro names containing parentheses, e.g.
1940 AC_DEFUN([AC_LANG_PREPROC(Fortran 90)], [...]).
1941 * Erase *.sum and *.log files created by DejaGnu, during `make distclean'.
1943 * Install Python files even if they were built. (PR/369)
1944 * Have stamp-vti dependent upon configure instead of configure.ac, as the
1945 version might not be defined in the latter. (PR/358)
1946 * Reorder arguments passed to a couple of commands, so things works
1947 when POSIXLY_CORRECT=1.
1948 * Fix a regex that can cause Perl to segfault on large input.
1950 * Fix distribution of packages that have some sources defined conditionally,
1951 as in the `Conditional compilation using Automake conditionals' example
1953 * Fix spurious test suite failures on IRIX.
1954 * Don't report a required variable as undefined if it has been
1955 defined conditionally for the "right" conditions.
1956 * Fix cleaning of the /tmp subdirectory used by `make distcheck', in case
1957 `make distcheck' fails.
1958 * Fix distribution of included Makefile fragment, so we don't create
1959 spurious directories in the distribution. (PR/366)
1960 * Don't complain that a target lacks `.$(EXEEXT)' when it has it.
1963 * Autoconf 2.54 is required.
1964 * `aclocal' and `automake' will no longer warn about obsolete
1965 configure macros. This is done by `autoconf -Wobsolete'.
1966 * AM_CONFIG_HEADER, AM_SYS_POSIX_TERMIOS and
1967 AM_HEADER_TIOCGWINSZ_NEEDS_SYS_IOCTL are obsolete (although still
1968 supported). You should use AC_CONFIG_HEADERS, AC_SYS_POSIX_TERMIOS,
1969 and AC_HEADER_TIOCGWINSZ instead. `autoupdate' can upgrade
1970 `configure.ac' for you.
1971 * Support for per-program and per-library `_CPPFLAGS'.
1972 * New `ctags' target (builds CTAGS files).
1973 * Support for -Wmumble and -Wno-mumble, where mumble is a warning category
1974 (see `automake --help' or the manual for a list of them).
1975 * Honor the WARNINGS environment variable.
1976 * Omit the call to depcomp when using gcc3: call the compiler directly.
1977 * A new option, std-options, tests that programs support --help and --version
1978 when `make installcheck' is run. This is enabled by --gnits.
1979 * Texinfo rules now support the `ps' and `pdf' targets.
1980 * Info files are now created in the build directory, not the source directory.
1981 * info_TEXINFOS supports files in subdirectories (this requires Texinfo 4.1
1983 * `make distcheck' will enforce DESTDIR support by attempting
1985 * `+=' can be used in conditionals, even if the augmented variable
1986 was defined for another condition.
1987 * Makefile fragments (inserted with `include') are always distributed.
1988 * Use Autoconf's --trace interface to inspect configure.ac and get
1989 a more accurate view of it.
1990 * Add support for extending aclocal's default macro search path
1991 using a `dirlist' file within the aclocal directory.
1992 * automake --output-dir is deprecated.
1993 * The part of the distcheck target that checks whether uninstall actually
1994 removes all installed files has been moved in a separate target,
1995 distuninstallcheck, so it can be overridden easily.
1999 * Support for AM_INIT_GETTEXT([external])
2000 * Bug fixes, including:
2001 - Fix Automake's own `make install' so it works even if `ln' doesn't.
2002 - nobase_ programs and scripts honor --program-transform correctly.
2003 - Erase configure.lineno during `make distclean'.
2004 - Erase YACC and LEX outputs during `make maintainer-clean'.
2007 * Many bug fixes, including:
2008 - Requiring the current version works.
2009 - Fix "$@" portability issues (for Zsh).
2010 - Fix output of dummy dependency files in presence of post-processed
2012 - Don't compute dependencies in background to avoid races with libtool.
2013 - Fix handling of _OBJECTS variables for targets sharing source variables.
2014 - Check dependency mode for Java when AM_PROG_GCJ is used.
2017 * automake --output-dir is deprecated
2018 * Many bug fixes, including:
2019 - Don't choke on AM_LDFLAGS definitions.
2020 - Clean libtool objects from subdirectories.
2021 - Allow configure variables with reserved suffix and unknown prefix
2022 (e.g. AC_SUBST(mumble_LDFLAGS) when 'mumble' is not a target).
2023 - Fix the definition of AUTOMAKE and ACLOCAL in configure.
2026 * Autoconf 2.52 is required.
2027 * automake no longer run libtoolize.
2028 This is the job of autoreconf (from GNU Autoconf).
2029 * `dist' generates all the archive flavors, as did `dist-all'.
2030 * `dist-gzip' generates the Gzip tar file only.
2031 * Combining Automake Makefile conditionals no longer lead to a combinatorial
2032 explosion. Makefile.in's keep a reasonable size.
2033 * AM_FUNC_ERROR_AT_LINE, AM_FUNC_STRTOD, AM_FUNC_OBSTACK, AM_PTRDIFF_T
2034 are no longer shipped, since Autoconf 2.52 provides them (both as AM_
2036 * `#line' of Lex and Yacc files are properly set.
2037 * EXTRA_DIST can contain generated directories.
2038 * Support for dot-less extensions in suffix rules.
2039 * The part of the distcheck target that checks whether distclean actually
2040 cleans all built files has been moved in a separate target, distcleancheck,
2041 so it can be overridden easily.
2042 * `make distcheck' will pass additional options defined in
2043 $(DISTCHECK_CONFIGURE_FLAGS) to configure.
2044 * Fixed CDPATH portability problems, in particular for MacOS X.
2045 * Fixed handling of nobase_ targets.
2046 * Fixed support of implicit rules leading to .lo objects.
2047 * Fixed late inclusion of --add-missing files (e.g. depcomp) in DIST_COMMON
2048 * Added uninstall-hook target
2049 * `AC_INIT AM_INIT_AUTOMAKE(tarname,version)' is an obsolete construct.
2050 You can now use `AC_INIT(pkgname,version) AM_INIT_AUTOMAKE' instead.
2051 (Note that "pkgname" is not "tarname", see the manual for details.)
2052 It is also possible to pass a list of global Automake options as
2053 first argument to this new form of AM_INIT_AUTOMAKE.
2054 * Compiler-based assembler is now called `CCAS'; people expected `AS'
2055 to be a real assembler.
2056 * AM_INIT_AUTOMAKE will set STRIP itself when it needs it. Adding
2057 AC_CHECK_TOOL([STRIP], [strip]) manually is no longer required.
2058 * aclocal and automake are also installed with the version number
2059 appended, and some of the install directory names have changed.
2060 This lets you have multiple versions installed simultaneously.
2061 * Support for parsers and lexers in subdirectories.
2064 * Support for `configure.ac'.
2065 * Support for `else COND', `endif COND' and negated conditions `!COND'.
2066 * `make dist-all' is much faster.
2067 * Allows '@' AC_SUBSTs in macro names.
2068 * Faster AM_INIT_AUTOMAKE (requires update of `missing' script)
2069 * User-side dependency tracking. Developers no longer need GNU make
2071 * Uses DIST_SUBDIRS in some situations when SUBDIRS is conditional
2072 * Most files are correctly handled if they appear in subdirs
2073 For instance, a _DATA file can appear in a subdir
2074 * GNU tar is no longer required for `make dist'
2075 * Added support for `dist_' and `nodist_' prefixes
2076 * Added support for `nobase_' prefix
2077 * Compiled Java support
2078 * Support for per-executable and per-library compilation flags
2082 * Added support for the Fortran 77 programming language.
2083 * Re-indexed the Automake Texinfo manual.
2084 * Added `AM_FOOFLAGS' variable for each compiler invocation;
2085 e.g. AM_CFLAGS can be used in Makefile.am to set C compiler flags
2086 * Support for latest autoconf, including support for objext
2087 * Can now put `.' in SUBDIRS to control build order
2088 * `include' command and `+=' support for macro assignment
2089 * Dependency tracking no long susceptible to deleted header file problem
2090 * Maintainer mode now a conditional. @MAINT@ is now an anachronism.
2095 * Better Cygwin32 support
2096 * Support for suffix rules with _SOURCES variables
2097 * New options `readme-alpha' and `check-news'; Gnits mode sets these
2098 * @LEXLIB@ no longer required when lex source seen
2099 Lex support in `missing', and new lex macro. Update your missing script.
2100 * Built-in support for assembly
2101 * aclocal gives error if `AM_' macro not found
2102 * Passed YFLAGS, not YACCFLAGS, to yacc
2103 * AM_PROG_CC_STDC does not have to come before AC_PROG_CPP
2104 * Dependencies computed as a side effect of compilation
2105 * Preliminary support for Java
2106 * DESTDIR support at "make install" time
2107 * Improved ansi2knr support; you must use the latest ansi2knr.c (included)
2111 * Better DejaGnu support
2112 * Added no-installinfo option
2113 * Added Emacs Lisp support
2114 * Added --no-force option
2115 * Included `aclocal' program
2116 * Automake will now generate rules to regenerate aclocal.m4, if appropriate
2117 * Now uses `AM_' macro names everywhere
2118 * ansi2knr option can have directory prefix (eg `../lib/ansi2knr')
2119 ansi2knr now works correctly on K&R sources
2120 * Better C++, yacc, lex support
2121 * Will compute _DEPENDENCIES variables automatically if not supplied
2122 * Will interpolate $(...) and ${...} when examining contents of a variable
2123 * .deps files now in build directory, not source directory; dependency
2124 handling generally rewritten
2125 * DATA, MANS and BUILT_SOURCES no longer included in distribution
2126 * can now put config.h into a subdir
2127 * Added dist-all target
2128 * Support for install-info program (see texinfo 3.9)
2129 * Support for "yacc -d"
2130 * configure substitutions are automatically discovered and included
2131 in generated Makefile.in
2132 * Special --cygnus mode
2133 * OMIT_DEPENDENCIES can now hold list of dependencies to be omitted
2134 when making distribution. Some dependencies are auto-ignored.
2135 * Changed how libraries are specified in _LIBRARIES variable
2136 * Full libtool support, from Gord Matzigkeit
2137 * No longer have to explicitly touch stamp-h when using AC_CONFIG_HEADER;
2138 AM_CONFIG_HEADER handles it automatically
2139 * Texinfo output files no longer need .info extension
2140 * Added `missing' support
2142 * Conditionals in Makefile.am, from Ian Taylor
2146 * distcheck target runs install and installcheck targets
2147 * Added preliminary support for DejaGnu.
2152 * More libtool fixes from Gord Matzigkeit; libtool support is still
2154 * Added support for jm_MAINTAINER_MODE
2156 * New "distcheck" target
2160 * mkinstalldirs and mdate-sh now appear in directory specified by
2162 * Removed DIST_SUBDIRS, DIST_OTHER
2163 * AC_ARG_PROGRAM only required when an actual program exists
2164 * dist-hook target now run before distribution packaged up; idea from
2165 Dieter Baron. Other hooks exist, too.
2166 * Preliminary (unfinished) support for libtool
2167 * Added short option names.
2168 * Better "dist" support when gluing together multiple packages
2172 * Documentation updates (many from François Pinard)
2173 * strictness `normal' now renamed to `foreign'
2174 * Renamed --install-missing to --add-missing
2175 * Now handles AC_CONFIG_AUX_DIR
2176 * Now handles TESTS macro
2177 * DIST_OTHER renamed to EXTRA_DIST
2178 * DIST_SUBDIRS is deprecated
2179 * @ALLOCA@ and @LIBOBJS@ now work in _LDADD variables
2180 * Better error messages in many cases
2181 * Program names are canonicalized
2182 * Added "check" prefix; from Gord Matzigkeit
2186 * configure.in scanner knows about AC_PATH_XTRA, AC_OUTPUT ":" syntax
2187 * Beginnings of a test suite
2188 * Automatically adds -I options for $(srcdir), ".", and path to config.h
2189 * Doesn't print anything when running
2190 * Beginnings of MAINT_CHARSET support
2191 * Can specify version in AUTOMAKE_OPTIONS
2192 * Most errors recognizable by Emacs' M-x next-error
2193 * Added --verbose option
2194 * All "primary" variables now obsolete; use EXTRA_PRIMARY to supply
2195 configure-generated names
2196 * Required macros now distributed in aclocal.m4
2198 * --strictness=gnu is default
2202 * More sophisticated configure.in scanning; now understands ALLOCA and
2203 LIBOBJS directly, handles AC_CONFIG_HEADER more precisely, etc.
2204 * TEXINFOS and MANS now obsolete; use info_TEXINFOS and man_MANS instead.
2205 * CONFIG_HEADER variable now obsolete
2206 * Can handle multiple Texinfo sources
2207 * Allow hierarchies deeper than 2. From Gord Matzigkeit.
2208 * HEADERS variable no longer needed; now can put .h files directly into
2209 foo_SOURCES variable.
2210 * Automake automatically rebuilds files listed in AC_OUTPUT. The
2211 corresponding ".in" files are included in the distribution.
2214 * Added --gnu and --gnits options
2215 * More standards checking
2217 * Cleaned up 'dist' targets
2218 * Added AUTOMAKE_OPTIONS variable and several options
2219 * Now scans configure.in to get some information (preliminary)
2222 * Works with Perl 4 again
2225 * Added --install-missing option.
2226 * Pretty-prints generated macros and rules
2227 * Comments in Makefile.am are placed more intelligently in Makefile.in
2228 * Generates .PHONY target
2229 * Rule or macro in Makefile.am now overrides contents of Automake file
2230 * Substantial cleanups from François Pinard
2234 * Works with Perl 4 again.
2237 * New uniform naming scheme.
2238 * --strictness option
2240 * '.c' files corresponding to '.y' or '.l' files are automatically
2242 * Many bug fixes and cleanups
2245 * Allow objects to be conditionally included in libraries via lib_LIBADD.
2248 * Bug fixes in 'clean' code.
2249 * Now generates 'installdirs' target.
2250 * man page installation reworked.
2251 * 'make dist' no longer re-creates all Makefile.in's.
2254 * Reimplemented in Perl
2255 * Added --amdir option (for debugging)
2256 * Texinfo support cleaned up.
2257 * Automatic de-ANSI-fication cleaned up.
2258 * Cleaned up 'clean' targets.
2261 * Automatic dependency tracking
2262 * More documentation
2263 * New variables DATA and PACKAGEDATA
2264 * SCRIPTS installed using $(INSTALL_SCRIPT)
2265 * No longer uses double-colon rules
2267 * Changes in advance of internationalization
2271 Copyright (C) 1995-2012 Free Software Foundation, Inc.
2273 This program is free software; you can redistribute it and/or modify
2274 it under the terms of the GNU General Public License as published by
2275 the Free Software Foundation; either version 2, or (at your option)
2278 This program is distributed in the hope that it will be useful,
2279 but WITHOUT ANY WARRANTY; without even the implied warranty of
2280 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
2281 GNU General Public License for more details.
2283 You should have received a copy of the GNU General Public License
2284 along with this program. If not, see <http://www.gnu.org/licenses/>.