-New in 1.12.2:
+New in 1.13:
-* WARNING: Future backward-incompatibilities!
+* Version requirements:
- - Starting from either the next minor version (1.12.2) or the next major
- version (1.13), Automake will start warning if 'configure.in' is used
- instead of 'configure.ac' as the Autoconf input. Future versions of
- Automake will drop support for 'configure.in' altogether.
+ - Autoconf 2.65 or greater is required.
- - 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.
+ - The rules to build PDF and DVI output from Texinfo input now
+ requires Texinfo 4.9 or later.
- - Starting from the next major Automake version (1.13), the rules to
- build pdf, ps and dvi output from Texinfo input will use the '--tidy'
- option by default. Since such an option was introduced in Texinfo
- 4.9, this means that Makefiles generated by future Automake versions
- will require at least that version of Texinfo.
+* Obsolete features removed:
- - 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.
+ - Use of the long-deprecated two- and three-arguments invocation forms
+ of the AM_INIT_AUTOMAKE is not supported anymore.
+
+ - Support for the "Cygnus-style" trees (once enabled by the 'cygnus'
+ option) has been removed. See discussion about automake bug#11034
+ for more background.
+
+ - The automake-provided '@mkdir_p@' configure substitution and
+ AM_PROG_MKDIR m4 macro have been removed. They had been obsolete
+ since automake 1.10, and actively deprecated since Automake 1.12.1.
+ However, to maintain a degree of backward-compatibility, the make
+ variable '$(mkdir_p)' is still defined (now simple as an alias to
+ '$(MKDIR_P)'). It will probably be removed in future major versions
+ of Automake (probably 1.14).
+
+ - 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AM_PROG_CC_STDC: superseded by AC_PROG_CC since October 2002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.
- - Support for the two- and three-arguments invocation forms of the
- AM_INIT_AUTOMAKE macro will be deprecated in the next minor version
- of Automake (1.12.1) and removed in the next major version (1.13).
+* 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:
+
+ - 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 does not disable
+ the warnings in the 'portability-recursive' category anymore.
+
+* Texinfo Support:
+
+ - 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 does not try anymore 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). It just give 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.
+
+ - 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.
+
+* Improvements to aclocal and related rebuilds rules:
+
+ - The Autoconf-provided macro AC_CONFIG_MACRO_DIR is now traced by
+ aclocal, and can be used to declare the local m4 include directory.
+ 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.
+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+New in 1.12.3:
+
+* 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.
- - 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).
+ - Starting from the next major Automake version (1.13), the rules to
+ build pdf, ps and dvi output from Texinfo input will use the '--tidy'
+ option by default. Since such an option was introduced in Texinfo
+ 4.9, this means that Makefiles generated by future Automake versions
+ will require at least that version of Texinfo.
+
+ - 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.
+
+ - Support for the two- and three-arguments invocation forms of the
+ AM_INIT_AUTOMAKE macro is deprecated, and will be removed in the
+ next major Automake version (1.13).
- The exact order in which the directories in the aclocal macro
search path are looked up is probably going to be changed in the
next Automake release (1.13).
+ - The 'missing' script will not try anymore 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.
+
+* Miscellaneous changes:
+
+ - The '.m4' files provided by Automake does not define serial numbers
+ anymore. This should cause no difference in the behaviour of aclocal
+ though.
+
+ - Some testsuite weaknesses and spurious failures have been fixed.
+
+ - There is initial support for automatic dependency tracking with the
+ Portland Group C/C++ compilers, thanks to the new new depmode 'pgcc'.
+
+Bugs fixed in 1.12.3:
+
+* Long-standing bugs:
+
+ - Instead of renaming only self-references of files (typically for
+ #lines), ylwrap now also renames references to the other generated
+ files. This fixes support for GLR and C++ parsers from Bison (PR
+ automake/491 and automake bug#7648): 'parser.c' now properly
+ #includes 'parser.h' instead of 'y.tab.h'.
+
+ - Generated files unknown to ylwrap are now preserved. This fixes
+ C++ support for Bison (automake bug#7648): location.hh and the
+ like are no longer discarded.
+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+New in 1.12.2:
+
+* Warnings and deprecations:
+
+ - Automake now issues a warning (in the 'portability' category) if
+ 'configure.in' is used instead of 'configure.ac' as the Autoconf
+ input file. Such a warning will also be present in the next
+ Autoconf version (2.70).
+
+* Cleaning rules:
+
+ - Recursive cleaning rules descends into the $(SUBDIRS) in the natural
+ order (as done by the other recursive rules), rather than in the
+ inverse order. They used to do that in order to work a round a
+ limitation in an older implementation of the automatic dependency
+ tracking support, but that limitation had been lifted years ago
+ already, when the automatic dependency tracking based on side-effects
+ of compilation had been introduced.
+
+ - Cleaning rules for compiled objects (both "plain" and libtool) work
+ better when subdir objects are involved, not triggering a distinct
+ 'rm' invocation for each such object. They do so by removing *any*
+ compiled object file that is in the same directory of a subdir
+ object. See automake bug#10697.
+
+* Silent rules support:
+
+ - A new predefined $(AM_V_P) make variable is provided; it expands
+ to a shell conditional that can be used in recipes to know whether
+ make is being run in silent or verbose mode.
+
+Bugs fixed in 1.12.2:
+
+* SECURITY VULNERABILITIES!
+
+ - The 'distcheck' recipe no longer grants temporary world-write
+ permissions on the extracted distdir. Even if such rights were
+ only granted for a vanishingly small time window, the implied
+ race condition proved to be enough to allow a local attacker
+ to run arbitrary code with the privileges of the user running
+ "make distcheck". This is CVE-2012-3386.
+
+* Long-standing bugs:
+
+ - The "recheck" targets behaves better in the face of build failures
+ related to previously failed tests. For example, if a test is a
+ compiled program that must be rerun by "make recheck", and its
+ compilation fails, it will still be rerun by further "make recheck"
+ invocations. See automake bug#11791.
+
+* Bugs introduced by 1.12.1:
+
+ - Automake provides once again the '$(mkdir_p)' make variable and the
+ '@mkdir_p@' substitution (both as simple aliases for '$(MKDIR_P)'),
+ for better backward-compatibility.
+
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
New in 1.12.1:
- The long-obsolete (since 1.10) automake-provided $(mkdir_p) make
variable, @mkdir_p@ configure-time substitution and AM_PROG_MKDIR
m4 macro are deprecated, eliciting a warning in the 'obsolete'
- category. They will be removed in the next major version (1.13).
+ category.
* Miscellaneous changes:
rule for this target. Running `automake -Woverride' will diagnose
all such overriding definitions.
- It should be noted that almost all these targets support a *-local
+ It should be noted that almost all of these targets support a *-local
variant that is meant to supplement the automake-defined rule
(See node `Extending' in the manual). The above rule should
be rewritten as
projects / platform / upstream / automake.git / blobdiff