-New in 1.12.6:
+New in 1.13.2:
* WARNING: Future backward-incompatibilities!
- - Future versions of Automake will likely drop support for the
- long-deprecated 'configure.in' name for the Autoconf input file.
- You are advised to use the recommended name 'configure.ac' instead.
+ - Automake 1.14 will require Autoconf 2.70 or later (which is still
+ unreleased at the moment of writing, but is planned to be released
+ before Automake 1.14 is).
- - Support for the "Cygnus-style" trees (as enabled by the 'cygnus'
- option) will be removed in the next major Automake release (1.13).
+ - Automake 1.14 will drop support for the long-deprecated 'configure.in'
+ name for the Autoconf input file. You are advised to start using
+ recommended name 'configure.ac' instead, ASAP.
- The long-obsolete (since automake 1.10) AM_PROG_MKDIR m4 macro will
- be removed in Automake 1.13. The $(mkdir_p) make variable and the
+ be removed in Automake 1.14. The $(mkdir_p) make variable and the
@mkdir_p@ substitution will still remain available (as aliases of
- $(MKDIR_P)) for the moment, for better backward compatibility.
+ $(MKDIR_P)) for the moment, for better backward compatibility; but
+ you are advised to stop using ASAP.
+
+ - The ACLOCAL_AMFLAGS special make variable will be fully deprecated
+ in Automake 1.14 (where it will raise warnings in the "obsolete"
+ category). You are advised to start relying on the new Automake
+ support for AC_CONFIG_MACRO_DIRS instead (which was introduced in
+ Automake 1.13).
+
+ - Support for IRIX and the SGI C/C++ compilers will be removed in
+ Automake 1.14: they have seen their last release in 2006, and SGI
+ is expected to retire support from them in December 2013; see
+ <http://www.sgi.com/services/support/irix_mips_support.html> for
+ more information.
+
+ - Future versions of Automake might remove support for MS-DOS and
+ Windows 95/98/ME (support for them was offered by relying on the
+ DJGPP project). Note however that both Cygwin and MSYS/MinGW on
+ modern Windows versions will continue to be fully supported.
+
+ - Support for the long-deprecated INCLUDES variable will be removed
+ altogether in Automake 1.14. The AM_CPPFLAGS variable should be
+ used instead.
+
+ - Automake-provided scripts and makefile recipes might (finally!)
+ start assuming a POSIX shell in Automake 1.14.
+
+ - Starting from Automake 1.14, third-party m4 files located in the
+ system-wide aclocal directory, as well as in any directory listed
+ in the ACLOCAL_PATH environment variable, will take precedence
+ over "built-in" Automake macros. For example (assuming Automake
+ is installed in the /usr/local hierarchy), a definition of the
+ AM_PROG_VALAC macro found in '/usr/local/share/aclocal/my-vala.m4'
+ should take precedence over the same-named automake-provided macro
+ (defined in '/usr/local/share/aclocal-1.14/vala.m4').
+
+* C compilation, and the AC_PROG_CC and AM_PROG_CC_C_O macros:
+
+ - The 'compile' script is now unconditionally required for all
+ packages that perform C compilation (note that if you are using
+ the '--add-missing' option, automake will fetch that script for
+ you, so you shouldn't need any explicit adjustment).
+ This new behaviour is needed to avoid obscure errors when the
+ 'subdir-objects' option is used, and the compiler is an inferior
+ one that doesn't grasp the combined use of both the "-c -o"
+ options; see discussion about automake bug#13378 for more details:
+ <http://debbugs.gnu.org/cgi/bugreport.cgi?bug=13378#35>
+ <http://debbugs.gnu.org/cgi/bugreport.cgi?bug=13378#44>
+
+ - Automake will automatically enhance the AC_PROG_CC autoconf macro
+ to make it check, at configure time, that the C compiler supports
+ the combined use of both the "-c -o" options. This "rewrite" of
+ AC_PROG_CC is only meant to be temporary, since future Autoconf
+ versions should provide all the features Automake needs.
+
+ - The AM_PROG_CC_C_O is no longer useful, and its use is a no-op
+ now. Future Automake versions might start warning that this
+ macro is obsolete. For better backward-compatibility, this macro
+ still sets a proper 'ac_cv_prog_cc_*_c_o' cache variable, and
+ define the 'NO_MINUS_C_MINUS_O' C preprocessor symbol, but you
+ should really stop relying on that.
+
+* Obsolescent features:
+
+ - Use of suffix-less info files (that can be specified through the
+ '@setfilename' macro in Texinfo input files) is discouraged, and
+ its use will raise warnings in the 'obsolete' category. Simply
+ use the '.info' extension for all your info files, transforming
+ usages like:
+
+ @setfilename myprogram
+
+ into:
+
+ @setfilename myprogram.info
+
+ - Use of Texinfo input files with '.txi' or '.texinfo' extensions
+ is discouraged, and its use will raise warnings in the 'obsolete'
+ category. You are advised to simply use the '.texi' extension
+ instead.
+
+* Documentation fixes:
+
+ - The long-deprecated but still supported two-arguments invocation form
+ of AM_INIT_AUTOMAKE is documented once again. This seems the sanest
+ thing to do, given that support for such an usage might need to remain
+ in place for a unspecified amount of time in order to cater for people
+ who want to define the version number for their package dynamically at
+ configure runtime (unfortunately, Autoconf does not yet support this
+ scenario, so we cannot delegate the work to it).
+
+* Texinfo support:
+
+ - Automake can now be instructed to place '.info' files generated from
+ Texinfo input in the builddir rather than in the srcdir; this is done
+ specifying the new automake option 'info-in-builddir'. This feature
+ was requested by the developers of GCC, GDB, GNU binutils and the GNU
+ bfd library. See the extensive discussion about automake bug#11034
+ for more details.
+
+ - For quite a long time, Automake has been implementing an undocumented
+ hack which ensured that '.info' files which appeared to be cleaned
+ (by e.g. being listed in the CLEANFILES or DISTCLEANFILES variables)
+ were built in the builddir rather than in the srcdir; this hack was
+ introduced to ensure better backward-compatibility with packages such
+ as Texinfo, which did things like:
+
+ info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
+ DISTCLEANFILES = texinfo texinfo-* info*.info*
+ # Do not create info files for distribution.
+ dist-info:
+ @:
+
+ in order not to distribute generated '.info' files.
+
+ Now that we have the 'info-in-builddir' option that explicitly causes
+ generated '.info' files to be placed in the builddir, this hack should
+ be longer necessary, so we deprecate it with runtime warnings. It will
+ likely be removed altogether in Automake 1.14.
- - Autoconf 2.65 or later will be required by the next major Automake
- version (1.13). Until now, Automake has required Autoconf version
- 2.62 or later.
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+New in 1.13.1:
+
+* Bugs fixed:
+
+ - Use of the obsolete macros AM_CONFIG_HEADER or AM_PROG_CC_STDC now
+ causes a clear and helpful error message, instead of obscure ones
+ (issue introduced in Automake 1.13).
+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+New in 1.13:
+
+* Bugs fixed:
+
+ - ylwrap renames properly header guards in generated header files
+ (*.h), instead of leaving Y_TAB_H.
+
+ - ylwrap now also converts header guards in implementation files
+ (*.c). Because ylwrap failed to rename properly #include in the
+ implementation files, current versions of Bison (e.g., 2.7)
+ duplicate the generated header file in the implementation file.
+ The header guard then protects the implementation file from
+ duplicate definitions from the header file.
+
+* Version requirements:
+
+ - Autoconf 2.65 or greater is now required.
+
+ - The rules to build PDF and DVI output from Texinfo input now
+ require Texinfo 4.9 or later.
+
+* Obsolete features:
- - Starting from the next major Automake version (1.13), the rules
- to build pdf, ps and dvi output from Texinfo input will use the
- '--build-dir' option by default. Since such an option was only
- introduced in Texinfo 4.9, this means that Makefiles generated by
- future Automake versions will require at least that version of
- Texinfo.
+ - Support for the "Cygnus-style" trees (once enabled by the 'cygnus'
+ option) has been removed. See discussion about automake bug#11034
+ for more background: <http://debbugs.gnu.org/11034>.
- - Starting from the next major Automake version (1.13), the parallel
- testsuite harness (previously only enabled by the 'parallel-tests'
- option) will become the default one; the older serial testsuite
- harness will still be available through the use of the 'serial-tests'
- option.
+ - The deprecated aclocal option '--acdir' has been removed. You
+ should use the options '--automake-acdir' and '--system-acdir'
+ instead (which have been introduced in Automake 1.11.2).
- - The following long-obsolete m4 macros will be removed in the
- next major Automake version (1.13):
+ - The following long-obsolete m4 macros have been removed:
AM_PROG_CC_STDC: superseded by AC_PROG_CC since October 2002
fp_PROG_CC_STDC: broken alias for AM_PROG_CC_STDC
of the now-removed automatic de-ANSI-fication
support of Automake)
- - All the "old alias" macros in 'm4/obsolete.m4' will be removed in
- the next major Automake version (1.13).
+ - All the "old alias" macros in 'm4/obsolete.m4' have been removed.
- - The '--acdir' option of aclocal is deprecated, and will probably
- be removed in the next major Automake release (1.13). You should
- use the options '--automake-acdir' and '--system-acdir' instead
- (which have been introduced in Automake 1.11.2).
+ - Use of the long-deprecated two- and three-arguments invocation forms
+ of the AM_INIT_AUTOMAKE is no longer documented. It's still supported
+ though (albeit with a warning in the 'obsolete' category), to cater
+ for people who want to define the version number for their package
+ dynamically (e.g., from the current VCS revision). We'll have to
+ continue this support until Autoconf itself is fixed to allow better
+ support for such dynamic version numbers.
+
+* Elisp byte-compilation:
+
+ - The byte compilation of '.el' files into '.elc' files is now done
+ with a suffix rule. This has simplified the compilation process, and
+ more importantly made it less brittle. The downside is that emacs is
+ now invoked once for each '.el' files, which cause some noticeable
+ slowdowns. These should however be mitigated on multicore machines
+ (which are becoming the norm today) if concurrent make ("make -j")
+ is used.
+
+ - Elisp files placed in a subdirectory are now byte-compiled to '.elc'
+ files in the same subdirectory; for example, byte-compiling of file
+ 'sub/foo.el' file will result in 'sub/foo.elc' rather than in
+ 'foo.elc'. This behaviour is backward-incompatible with older
+ Automake versions, but it is more natural and more sane. See also
+ automake bug#7441.
+
+ - The Emacs invocation performing byte-compilation of '.el' files honors
+ the $(AM_ELCFLAGS) and $(ELCFLAGS) variables; as typical, the former
+ one is developer-reserved and the latter one user-reserved.
+
+ - The 'elisp-comp' script, once provided by Automake, has been rendered
+ obsoleted by the just-described changes, and thus removed.
+
+* Changes to Automake-generated testsuite harnesses:
+
+ - The parallel testsuite harness (previously only enabled by the
+ 'parallel-tests' option) is the default one; the older serial
+ testsuite harness will still be available through the use of the
+ 'serial-tests' option (introduced in Automake 1.12).
+
+ - The 'color-tests' option is now unconditionally activated by default.
+ In particular, this means that testsuite output is now colorized by
+ default if the attached terminal seems to support ANSI escapes, and
+ that the user can force output colorization by setting the variable
+ AM_COLOR_TESTS to "always". The 'color-tests' is still recognized
+ for backward-compatibility, although it's a handled as a no-op now.
+
+* Silent rules support:
- - The 'missing' script will no longer try to update the timestamp
- of out-of-date files that require a maintainer-specific tool to be
+ - Support for silent rules is now always active in Automake-generated
+ Makefiles. So, although the verbose output is still the default,
+ the user can now always use "./configure --enable-silent-rules" or
+ "make V=0" to enable quieter output in the package he's building.
+
+ - The 'silent-rules' option has now become a no-op, preserved for
+ backward-compatibility only. In particular, its use no longer
+ disables the warnings in the 'portability-recursive' category.
+
+* Texinfo Support:
+
+ - The rules to build PDF and DVI files from Texinfo input now require
+ Texinfo 4.9 or later.
+
+ - The rules to build PDF and DVI files from Texinfo input now use the
+ '--build-dir' option, to keep the auxiliary files used by texi2dvi
+ and texi2pdf around without cluttering the build directory, and to
+ make it possible to run the "dvi" and "pdf" recipes in parallel.
+
+* Automatic remake rules and 'missing' script:
+
+ - The 'missing' script no longer tries to update the timestamp of
+ out-of-date files that require a maintainer-specific tool to be
remade, in case the user lacks such a tool (or has a too-old version
- of it). In fact, starting from Automake 1.13, all it'll do will be
- giving more useful warnings than a bare "command not found" from a
- make recipe would.
+ of it). It just gives a useful warning, and in some cases also a
+ tip about how to obtain such a tool.
+
+ - The missing script has thus become useless as a (poor) way to work
+ around the sketched-timestamps issues that can happen for projects
+ that keep generated files committed in their VCS repository. Such
+ projects are now encouraged to write a custom "fix-timestamps.sh"
+ script to avoid such issues; a simple example is provided in the
+ "CVS and generated files" chapter of the automake manual.
+
+* Recursive targets:
+
+ - The user can now define his own recursive targets that recurse
+ in the directories specified in $(SUBDIRS). This can be done by
+ specifying the name of such targets in invocations of the new
+ 'AM_EXTRA_RECURSIVE_TARGETS' m4 macro.
+
+* Tags:
+
+ - Any failure in the recipe of the "tags", "ctags", "cscope" or
+ "cscopelist" targets in a subdirectory is now propagated to the
+ top-level make invocation.
+
+ - Tags are correctly computed also for files in _SOURCES variables that
+ only list files with non-standard suffixes (see automake bug#12372).
+
+* Improvements to aclocal and related rebuilds rules:
+
+ - Autoconf-provided macros AC_CONFIG_MACRO_DIR and AC_CONFIG_MACRO_DIRS
+ are now traced by aclocal, and can be used to declare the local m4
+ include directories. Formerly, one had to specify it with an explicit
+ '-I' option to the 'aclocal' invocation.
+
+ - The special make variable ACLOCAL_AMFLAGS is deprecated; future
+ Automake versions will warn about its use, and later version will
+ remove support for it altogether.
+
+* The depcomp script:
+
+ - Dropped support for libtool 1.4.
+
+ - Various internal refactorings. They should cause no visible change,
+ but the chance for regression is there anyway, so please report any
+ unexpected or suspicious behaviour.
+
+ - Support for pre-8.0 versions of the Intel C Compiler has been dropped.
+ This should cause no problem, since icc 8.0 has been released in
+ December 2003 -- almost nine years ago.
+
+ - Support for tcc (the Tiny C Compiler) has been improved, and is now
+ handled through a dedicated 'tcc' mode.
+
+* The ylwrap script:
+
+ - ylwrap generates header guards with a single '_' for series of non
+ alphabetic characters, instead of several. This is what Bison >=
+ 2.5.1 does.
+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Bugs fixed in 1.12.6:
-* Bugs introduced in 1.12.5:
+* Python-related bugs:
+
+ - The default installation location for python modules has been improved
+ for Python 3 on Debian and Ubuntu systems, changing from:
+
+ ${prefix}/lib/python3/dist-packages
+
+ to
+
+ ${prefix}/lib/python3.x/site-packages
- - The maintainer rebuild rules for Makefiles and aclocal.m4 in Automake's
- own build system works correctly again.
+ This change should ensure modules installed using the default ${prefix}
+ "/usr/local" are found by default by system python 3.x installations.
+ See automake bug#10227.
+
+ - Python byte-compilation supports the new layout mandated by PEP-3147,
+ with its __pycache__ directory (automake bug#8847).
+
+* Build system issues:
+
+ - The maintainer rebuild rules for Makefiles and aclocal.m4 in
+ Automake's own build system works correctly again (bug introduced
+ in Automake 1.12.5).
+
+* Testsuite issues:
+
+ - The Vala-related tests has been changed to adjust to the removal of
+ the 'posix' profile in the valac compiler. See automake bug#12934
+ a.k.a. bug#12522.
+
+ - Some spurious testsuite failures related to older tools and systems
+ have been fixed.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-----
-Copyright (C) 1995-2012 Free Software Foundation, Inc.
+Copyright (C) 1995-2013 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
projects / platform / upstream / automake.git / blobdiff