Edit
kc3-lang/automake/NEWS
Alexandre Duret-Lutz
- NEWS
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New in 1.7f: * Meta-News - The NEWS file is more verbose. * Requirements - Autoconf 2.58 or greater is required. * New features - AR's `cru' flags are now set in a global ARFLAGS variable instead of being hard-coded in each $(AR) invocation, so they can be substituted from configure.ac. This has been requested by people dealing with non-POSIX ar implementations. - New warning option: -Woverride. This will warn about any user target or variable definitions which override Automake definitions. - Texinfo rules back up and restore info files when makeinfo fails. - Texinfo rules now support the `html' target. Running this requires Texinfo 4.0 or greater. `html' is a new recursive target, so if your package mixes hand-crafted `Makefile.in's with Automake-generated `Makefile.in's, you should adjust the former to support (or ignore) this target so that `make html' recurses successfully. If you had a custom `html' rule in your `Makefile.am', it's better to rename it as `html-local', otherwise your rule will override Automake's new rule (you can check that by running `automake -Woverride') and that will stop the recursion to subdirectories. Last but not least, this `html' rule is declared PHONY, even when overridden. Fortunately, it appears that few packages use a non-PHONY `html' rule. - Any file which is m4_included from configure.ac will appear as a configure and Makefile.in dependency, and will be automatically distributed. - The rules for rebuilding Makefiles and Makefile.ins will now rebuild all Makefiles and all Makefile.ins at once when one of configure's dependencies has changed. This is considerably faster than previous implementations, where config.status and automake were run separately in each directory (this still happens when you change a Makefile.am locally, without touching configure.ac or friends). Doing this also solves a longstanding issue: these rebuild rules failed to work when adding new directories to the tree, forcing you to run automake manually. - For similar reasons, the rules to rebuild configure, config.status, and aclocal.m4 are now defined in all directories. Note that if you were using the CONFIG_STATUS_DEPENDENCIES and CONFIGURE_DEPENDENCIES (undocumented) variables, you should better define them in all directories. This is easily done using an AC_SUBST (make sure you prefix these dependencies with $(abs_top_srcdir) since this variable will appear at different levels of the build tree). - aclocal will now use `m4_include' instead of copying local m4 files into aclocal.m4. (Local m4 files are those you ship with your project, other files will be copied as usual.) Because m4_included files are automatically distributed, it means for most projects there is no point in EXTRA_DISTing the list of m4 files which are used. (You can probably get rid of m4/Makefile.am if you had one.) - aclocal will avoid touching aclocal.m4 when possible, so that Autom4te's cache isn't needlessly invalidated. This behavior can be switched off with the new `--force' option. - aclocal now uses Autoconf's --trace to detect macros which are actually used and will no longer include unused macros simply because they where mentioned. This was often the case for macros called conditionally. - New options no-dist and no-dist-gzip. - compile, depcomp, elisp-comp, install-sh, mdate-sh, mkinstalldirs, py-compile, and ylwrap, now all understand --version and --help. - Automake will now recognize AC_CONFIG_LINKS so far as removing created links as part of the distclean target and including source files in distributions. - AM_PATH_PYTHON now supports ACTION-IF-FOUND and ACTION-IF-NOT-FOUND argument. The latter can be used to override the default behavior (which is to abort). - Automake will exit with $? = 63 on version mismatch. (So does Autoconf 2.58) missing knows this, and in this case it will emulate the tools as if they were absent. Because older versions of Automake and Autoconf did not use this exit code, this change will only be useful in projects generated with future versions of these tools. - When using AC_CONFIG_FILES with multiple input files, Automake generates the first ".in" input file for which a ".am" exists. (Former versions would try to use only the first input file.) - lisp_DATA is now allowed. If you are using the empty ELCFILES idiom to disable byte-compilation of lisp_LISP files, it is recommended that you switch to using lisp_DATA. Note that this is not strictly equivalent: lisp_DATA will install elisp files even if emacs is not installed, while *_LISP do not install anything unless emacs is found. - Makefiles will prefer `mkdir -p' over mkinstalldirs if it is available. This selection is achieved through the Makefile variable $(mkdir_p) that is set by AM_INIT_AUTOMAKE to either `mkdir -m 0755 -p --', `$(mkinstalldirs) -m 0755', or `$(install_sh) -m 0755 -d'. * Obsolete features - Because `mkdir -p' is available on most platforms, and we can use `install-sh -d' when it is not, the use of the mkinstalldirs script is being phased out. `automake --add-missing' no longer installs it, and if you remove mkinstalldirs from your package, automake will define $(mkinstalldirs) as an alias for $(mkdir_p). Gettext 1.12.1 still requires mkinstalldirs. Fortunately gettextize and autopoint will install it when needed. Automake will continue to define the $(mkinstalldirs) and to distribute mkinstalldirs when this script is in the source tree. - AM_PROG_CC_STDC is now empty. The content of this macro was merged in AC_PROG_CC. If your code uses $am_cv_prog_cc_stdc, you should adjust it to use $ac_cv_prog_cc_stdc instead. (This renaming should be safe, even if you have to support several, versions of Automake, because AC_PROG_CC defines this variable since Autoconf 2.54.) - Some users where using the undocumented ACLOCAL_M4_SOURCES variable to override the aclocal.m4 dependencies computed (inaccurately) by older versions of Automake. Because Automake now tracks configure's m4 dependencies accurately (see m4_include above), the use of ACLOCAL_M4_SOURCES should be considered obsolete and will be flagged as such when running `automake -Wobsolete'. * Bug fixes - Defining programs conditionally using Automake conditionals no longer leads to a combinatorial explosion. The following construct used to be troublesome when used with dozens of conditions. bin_PROGRAMS = a if COND1 bin_PROGRAMS += a1 endif if COND2 bin_PROGRAMS += a2 endif if COND3 bin_PROGRAMS += a3 endif ... Likewise for _SOURCES, _LDADD, and _LIBADD variables. - Due to implementation constraints, previous versions of Automake proscribed multiple conditional definitions of some variables like bin_PROGRAMS: if COND1 bin_PROGRAMS = a1 endif if COND2 bin_PROGRAMS = a2 endif All _PROGRAMS, _LDADD, and _LIBADD variables were affected. This restriction has been lifted, and these variables now support multiple conditional definitions as do other variables. - Cleanup the definitions of $(distdir) and $(top_distdir). $(top_distdir) now points to the root of the distribution directory created during `make dist', as it did in Automake 1.4, not to the root of the build tree as it did in intervening versions. Furthermore these two variables are now only defined in the top level Makefile, and passed to sub-directories when running `make dist'. - The --no-force option now correctly checks the Makefile.in's dependencies before deciding not to update it. - Do not assume that make files are called Makefile in cleaning rules. - Update .info files in the source tree, not in the build tree. This is what the GNU Coding Standard recommend. Only Automake 1.7.x used to update these files in the build tree (previous versions did it in the source tree too), and it caused several problems, varying from mere annoyance to portability issues. - COPYING, COPYING.LIB, and COPYING.LESSER are no longer overwritten when --add-missing and --force-missing are used. For backward compatibility --add-missing will continue to install COPYING (in `gnu' strictness) when none of these three files exist, but this use is deprecated: you should better choose a license yourself and install it once for all in your source tree (and in your code management system). - Fix ylwrap so that it does not overwrite header files that haven't changed, as the inline rule already does. - User-defined rules override automake-defined rules for the same targets, even when rules do not have commands. This is not new (and was documented), however some of the automake-generated rules have escaped this principle in former Automake versions. Rules for the following targets are affected by this fix: clean, clean-am, dist-all, distclean, distclean-am, dvi, dvi-am, info, info-am, install-data-am, install-exec-am, install-info, install-info-am, install-man, installcheck-am, maintainer-clean, maintainer-clean-am, mostlyclean, mostlyclean-am, pdf, pdf-am, ps, ps-am, uninstall-am, uninstall-info, uninstall-man Practically it means that an attempt to supplement the dependencies of some target, as in clean: my-clean-rule will now *silently override* the automake definition of the 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 variant that is meant to supplement the automake-defined rule (See node `Extending' in the manual). The above rule should be rewritten as clean-local: my-clean-rule These *-local targets have been documented since at least Automake 1.2, so you should not fear the change if you have to support multiple automake versions. * Miscellaneous - The Automake manual is now distributed under the terms of the GNU FDL. - Targets dist-gzip, dist-bzip2, dist-tarZ, dist-zip are always defined. - core dumps are no longer removed by the cleaning rules. There are at least three reasons for this: 1. These files should not be created by any build step, so their removal do not fit any of the cleaning rules. Actually, they may be precious to the developer. 2. If such file is created during a build, then it's clearly a bug Automake should not hide. Not removing the file will cause `make distcheck' to complain about its presence. 3. Operating systems have different naming conventions for core dump files. A core file on one system might be a completely legitimate data file on another system. - RUNTESTFLAGS, CTAGSFLAGS, ETAGSFLAGS, JAVACFLAGS are no longer defined by Automake. This means that any definition in the environment will be used, unless overridden in the Makefile.am or on the command line. The old behavior, where these variables were defined empty in each Makefile, can be obtained by AC_SUBSTing or AC_ARG_VARing each variable from configure.ac. Bugs fixed in 1.7.9: * Fix install-strip to work with nobase_ binaries. * Fix renaming of #line directives in ylwrap. * Rebuild with Autoconf 2.59. (1.7.8 was not installable with pdksh.) Bugs fixed in 1.7.8: * Remove spurious blank lines in cleaning rules introduced in 1.7.7. * Fix detection of Debian's install-info, broken since version 1.5. (Debian bug #213524). * Honor -module if it appears in AM_LDFLAGS (i.e., relax name checking) This was only done for libfoo_LDFLAGS and LDFLAGS in previous versions. Bugs fixed in 1.7.7: * The implementation of automake's --no-force option is unreliable, so this option is ignored in this version. A real fix will appear in Automake 1.8. (Debian Bug #206299) * AM_PATH_PYTHON: really check the whole list of interpreters if no argument is given. (PR/399) * Do not warn about leading `_' in variable names, even with -Wportability. * Support user redefinitions of TEXINFO_TEX. * depcomp: support AIX Compiler version 6. * Fix missing rebuilds during `make dist' with BSD make. (Could produce tarballs containing out-of-date files.) * Resurrect multilib support. * Noteworthy manual updates: - Extending aclocal: how to write m4 macros that won't trigger warnings with Automake 1.8. - A Shared Library: Rewrite and split into subsections. Bugs fixed in 1.7.6: * Fix depcomp's icc mode for ICC 7.1. * Diagnose calls to AC_CONFIG_FILES and friends with not enough arguments. * Fix maintainer-clean's removal of autom4te.cache in VPATH builds. * Fix AM_PATH_LISPDIR to work with POSIXLY_CORRECT=1. * Fix the location reported in some diagnostics related to AUTOMAKE_OPTIONS. * Remove Latin-1 characters from elisp-comp. * Update the manual's @dircategory to match the Free Software Directory. Bugs fixed in 1.7.5: * Update install-sh's license to remove an advertising clause. (Debian bug #191717) * Fix a bug introduced in 1.7.4, related to BUILT_SOURCE handling, that caused invalid Makefile.ins to be generated. * Make sure AM_MAKE_INCLUDE doesn't fail when a `doit' file exists. * New FAQ entry: renamed objects. Bugs fixed in 1.7.4: * Tweak the TAGS rule to support Exuberant Ctags (in addition to the Emacs implementation) * Fix output of aclocal.m4 dependencies in subdirectories. * Use `mv -f' instead of `mv' in fastdep rules. * Upgrade mdate-sh to work on OS/2. * Don't byte-compile elisp files when ELCFILES is set empty. (this documented feature was broken by 1.7.3) * Diagnose trailing backslashes on last line of Makefile.am. * Diagnose whitespace following trailing backslashes. * Multiple tests are now correctly supported in DEJATOOL. (PR/388) * Fix rebuilt rules for AC_CONFIG_FILES([Makefile:Makefile.in:Makefile.bot]) Makefiles. (PR/389) * `make install' will build `BUILT_SOURCES' first. * Minor documentation fixes. Bugs fixed in 1.7.3: * Fix stamp files numbering (when using multiple AC_CONFIG_HEADERS). * Query distutils for `pythondir' and `pythonexecdir', instead of using an hardcoded path. This should allow builds on 64-bit distributions that usually use lib64/ instead of lib/. * AM_PATH_PYTHON will also search for python2.3. * elisp files are now built all at once instead of one by one. Besides incurring a speed-up, this is required to support interdependent elisp files. * Support for DJGPP: - `make distcheck' will now work in `_inst/' and `_build' instead of `=inst/' and `=build/' - use `_dirstamp' when the file-system doesn't support `.dirstamp' - install/uninstall `*.i[0-9][0-9]'-style info files - more changes that affect only the Automake package (not its output) * Fix some incompatibilities with upcoming perl-5.10. * Properly quote AC_PACKAGE_TARNAME and AC_PACKAGE_VERSION when defining PACKAGE and VERSION. * depcomp fixes: - dashmstdout and dashXmstdout modes: don't use `-o /dev/null', this is troublesome with gcc and Solaris compilers. (PR/385) - makedepend mode: work with Libtool. (PR/385 too) - support for ICC. * better support for unusual gettext setups, such as multiple po/ directories (PR/381): - Flag missing po/ and intl/ directories as warnings, not errors. - Disable these warnings if po/ does not exist. * Noteworthy manual updates: - New FAQ chapter. - Document how AC_CONFIG_AUX_DIR interacts with missing files. (Debian Bug #39542) - Document `AM_YFLAGS = -d'. (PR/382) Bugs fixed in 1.7.2: * Fix installation and uninstallation of Info files built in subdirectories. * Do not run `./configure --with-included-gettext' during `make distcheck' if AM_GNU_GETTEXT([external]) is used. * Correctly uninstall renamed man pages. * Do not strip escaped newline in variables defined in one condition and augmented in another condition. * Fix ansi2knr rules for LIBOBJS sources. * Clean all known Texinfo index files, not only those which appear to be used, because we cannot know wich indexes are used in included files. (PR/375, Debian Bug #168671) * Honor only the first @setfilename seen in a Texinfo file. * Treat "required file X not found" diagnostics as errors (exit status 1). * Don't complain that a required file is not found when it is a Makefile target. (PR/357) * Don't use single suffix inference rules when building `.info'-less Info files, for the sake of Solaris make. * The `check' target now depends on `$(BUILT_SOURCES)'. (PR/359) * Recognize multiple inference rules such as `.a.b .c.d:'. (PR/371) * Warn about multiple inference rules when -Wportability is used. (PR/372) * Fix building of deansified files from subdirectories. (PR/370) * Add missing `fi' in the .c->.obj rules. * Improve install-sh to work even when names contain spaces or certain (but not all) shell metachars. * Fix the following spurious failures in the test suite: depcomp2.test, gnits2.test, gnits3.test, python3.test, texinfo13.test * Noteworthy manual updates: - Augment the section about BUILT_SOURCES. - Mention that AM_PROG_CC_STDC is a relic that is better avoided today. Bugs fixed in 1.7.1: * Honor `ansi2knr' for files built in subdirectories, or using per-targets flags. * Aclocal should now recognize macro names containing parentheses, e.g. AC_DEFUN([AC_LANG_PREPROC(Fortran 90)], [...]). * Erase *.sum and *.log files created by DejaGnu, during `make distclean'. (Debian Bug#153697) * Install Python files even if they were built. (PR/369) * Have stamp-vti dependent upon configure instead of configure.ac, as the version might not be defined in the latter. (PR/358) * Reorder arguments passed to a couple of commands, so things works when POSIXLY_CORRECT=1. * Fix a regex that can cause Perl to segfault on large input. (Debian Bug#162583) * Fix distribution of packages that have some sources defined conditionally, as in the `Conditional compilation using Automake conditionals' example of the manual. * Fix spurious test suite failures on IRIX. * Don't report a required variable as undefined if it has been defined conditionally for the "right" conditions. * Fix cleaning of the /tmp subdirectory used by `make distcheck', in case `make distcheck' fails. * Fix distribution of included Makefile fragment, so we don't create spurious directories in the distribution. (PR/366) * Don't complain that a target lacks `.$(EXEEXT)' when it has it. New in 1.7: * Autoconf 2.54 is required. * `aclocal' and `automake' will no longer warn about obsolete configure macros. This is done by `autoconf -Wobsolete'. * AM_CONFIG_HEADER, AM_SYS_POSIX_TERMIOS and AM_HEADER_TIOCGWINSZ_NEEDS_SYS_IOCTL are obsolete (although still supported). You should use AC_CONFIG_HEADERS, AC_SYS_POSIX_TERMIOS, and AC_HEADER_TIOCGWINSZ instead. `autoupdate' can upgrade `configure.ac' for you. * Support for per-program and per-library `_CPPFLAGS'. * New `ctags' target (builds CTAGS files). * Support for -Wmumble and -Wno-mumble, where mumble is a warning category (see `automake --help' or the manual for a list of them). * Honor the WARNINGS environment variable. * Omit the call to depcomp when using gcc3: call the compiler directly. * A new option, std-options, tests that programs support --help and --version when `make installcheck' is run. This is enabled by --gnits. * Texinfo rules now support the `ps' and `pdf' targets. * Info files are now created in the build directory, not the source directory. * info_TEXINFOS supports files in subdirectories (this requires Texinfo 4.1 or greater). * `make distcheck' will enforce DESTDIR support by attempting a DESTDIR install. * `+=' can be used in conditionals, even if the augmented variable was defined for another condition. * Makefile fragments (inserted with `include') are always distributed. * Use Autoconf's --trace interface to inspect configure.ac and get a more accurate view of it. * Add support for extending aclocal's default macro search path using a `dirlist' file within the aclocal directory. * automake --output-dir is deprecated. * The part of the distcheck target that checks whether uninstall actually removes all installed files has been moved in a separate target, distuninstallcheck, so it can be overridden easily. * Many bug fixes. New in 1.6.3: * Support for AM_INIT_GETTEXT([external]) * Bug fixes, including: - Fix Automake's own `make install' so it works even if `ln' doesn't. - nobase_ programs and scripts honor --program-transform correctly. - Erase configure.lineno during `make distclean'. - Erase YACC and LEX outputs during `make maintainer-clean'. New in 1.6.2: * Many bug fixes, including: - Requiring the current version works. - Fix "$@" portability issues (for Zsh). - Fix output of dummy dependency files in presence of post-processed Makefile.in's. - Don't compute dependencies in background to avoid races with libtool. - Fix handling of _OBJECTS variables for targets sharing source variables. - Check dependency mode for Java when AM_PROG_GCJ is used. New in 1.6.1: * automake --output-dir is deprecated * Many bug fixes, including: - Don't choke on AM_LDFLAGS definitions. - Clean libtool objects from subdirectories. - Allow configure variables with reserved suffix and unknown prefix (e.g. AC_SUBST(mumble_LDFLAGS) when 'mumble' is not a target). - Fix the definition of AUTOMAKE and ACLOCAL in configure. New in 1.6: * Autoconf 2.52 is required. * automake no longer run libtoolize. This is the job of autoreconf (from GNU Autoconf). * `dist' generates all the archive flavors, as did `dist-all'. * `dist-gzip' generates the Gzip tar file only. * Combining Automake Makefile conditionals no longer lead to a combinatorial explosion. Makefile.in's keep a reasonable size. * AM_FUNC_ERROR_AT_LINE, AM_FUNC_STRTOD, AM_FUNC_OBSTACK, AM_PTRDIFF_T are no longer shipped, since Autoconf 2.52 provides them (both as AM_ and AC_). * `#line' of Lex and Yacc files are properly set. * EXTRA_DIST can contain generated directories. * Support for dot-less extensions in suffix rules. * The part of the distcheck target that checks whether distclean actually cleans all built files has been moved in a separate target, distcleancheck, so it can be overridden easily. * `make distcheck' will pass additional options defined in $(DISTCHECK_CONFIGURE_FLAGS) to configure. * Fixed CDPATH portability problems, in particular for MacOS X. * Fixed handling of nobase_ targets. * Fixed support of implicit rules leading to .lo objects. * Fixed late inclusion of --add-missing files (e.g. depcomp) in DIST_COMMON * Added uninstall-hook target * `AC_INIT AM_INIT_AUTOMAKE(tarname,version)' is an obsolete construct. You can now use `AC_INIT(pkgname,version) AM_INIT_AUTOMAKE' instead. (Note that "pkgname" is not "tarname", see the manual for details.) It is also possible to pass a list of global Automake options as first argument to this new form of AM_INIT_AUTOMAKE. * Compiler-based assembler is now called `CCAS'; people expected `AS' to be a real assembler. * AM_INIT_AUTOMAKE will set STRIP itself when it needs it. Adding AC_CHECK_TOOL([STRIP], [strip]) manually is no longer required. * aclocal and automake are also installed with the version number appended, and some of the install directory names have changed. This lets you have multiple versions installed simultaneously. * Support for parsers and lexers in subdirectories. New in 1.5: * Support for `configure.ac'. * Support for `else COND', `endif COND' and negated conditions `!COND'. * `make dist-all' is much faster. * Allows '@' AC_SUBSTs in macro names. * Faster AM_INIT_AUTOMAKE (requires update of `missing' script) * User-side dependency tracking. Developers no longer need GNU make * Python support * Uses DIST_SUBDIRS in some situations when SUBDIRS is conditional * Most files are correctly handled if they appear in subdirs For instance, a _DATA file can appear in a subdir * GNU tar is no longer required for `make dist' * Added support for `dist_' and `nodist_' prefixes * Added support for `nobase_' prefix * Compiled Java support * Support for per-executable and per-library compilation flags * Many bug fixes New in 1.4: * Added support for the Fortran 77 programming language. * Re-indexed the Automake Texinfo manual. * Added `AM_FOOFLAGS' variable for each compiler invocation; e.g. AM_CFLAGS can be used in Makefile.am to set C compiler flags * Support for latest autoconf, including support for objext * Can now put `.' in SUBDIRS to control build order * `include' command and `+=' support for macro assignment * Dependency tracking no long susceptible to deleted header file problem * Maintainer mode now a conditional. @MAINT@ is now an anachronism. * Bug fixes New in 1.3: * Bug fixes * Better Cygwin32 support * Support for suffix rules with _SOURCES variables * New options `readme-alpha' and `check-news'; Gnits mode sets these * @LEXLIB@ no longer required when lex source seen Lex support in `missing', and new lex macro. Update your missing script. * Built-in support for assembly * aclocal gives error if `AM_' macro not found * Passed YFLAGS, not YACCFLAGS, to yacc * AM_PROG_CC_STDC does not have to come before AC_PROG_CPP * Dependencies computed as a side effect of compilation * Preliminary support for Java * DESTDIR support at "make install" time * Improved ansi2knr support; you must use the latest ansi2knr.c (included) New in 1.2: * Bug fixes * Better DejaGnu support * Added no-installinfo option * Added Emacs Lisp support * Added --no-force option * Included `aclocal' program * Automake will now generate rules to regenerate aclocal.m4, if appropriate * Now uses `AM_' macro names everywhere * ansi2knr option can have directory prefix (eg `../lib/ansi2knr') ansi2knr now works correctly on K&R sources * Better C++, yacc, lex support * Will compute _DEPENDENCIES variables automatically if not supplied * Will interpolate $(...) and ${...} when examining contents of a variable * .deps files now in build directory, not source directory; dependency handling generally rewritten * DATA, MANS and BUILT_SOURCES no longer included in distribution * can now put config.h into a subdir * Added dist-all target * Support for install-info program (see texinfo 3.9) * Support for "yacc -d" * configure substitutions are automatically discovered and included in generated Makefile.in * Special --cygnus mode * OMIT_DEPENDENCIES can now hold list of dependencies to be omitted when making distribution. Some dependencies are auto-ignored. * Changed how libraries are specified in _LIBRARIES variable * Full libtool support, from Gord Matzigkeit * No longer have to explicitly touch stamp-h when using AC_CONFIG_HEADER; AM_CONFIG_HEADER handles it automatically * Texinfo output files no longer need .info extension * Added `missing' support * Cygwin32 support * Conditionals in Makefile.am, from Ian Taylor New in 1.0: * Bug fixes * distcheck target runs install and installcheck targets * Added preliminary support for DejaGnu. New in 0.33: * More bug fixes * More checking * More libtool fixes from Gord Matzigkeit; libtool support is still preliminary however * Added support for jm_MAINTAINER_MODE * dist-zip support * New "distcheck" target New in 0.32: * Many bug fixes * mkinstalldirs and mdate-sh now appear in directory specified by AC_CONFIG_AUX_DIR. * Removed DIST_SUBDIRS, DIST_OTHER * AC_ARG_PROGRAM only required when an actual program exists * dist-hook target now run before distribution packaged up; idea from Dieter Baron. Other hooks exist, too. * Preliminary (unfinished) support for libtool * Added short option names. * Better "dist" support when gluing together multiple packages New in 0.31: * Bug fixes * Documentation updates (many from Fran