- All the "old alias" macros in 'm4/obsolete.m4' have been removed.
+* 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
* 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
+ '--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.
* 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.
+ - 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
- 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: