path: root/NEWS

New in 1.7a:
* The NEWS file is more verbose.

* Autoconf 2.55 or greater is required.

* 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 _LDADD and _LIBADD variables.

* Automake now supports bin_PROGRAMS (or any *_PROGRAMS variable)
  being defined in several conditions.  As in

    if COND1
      bin_PROGRAMS = a1
    endif
    if COND2
      bin_PROGRAMS = a2
    endif

  Likewise for _LDADD and _LIBADD variables.

* install-sh now understands --version and --help.

* 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'.

* elisp sources are compiled all at once, instead of one by one.
  This allows interdependencies and speeds up compilation.

* lisp_DATA is now allowed.  If you are using the empty ELCFILES idiom
  to disable byte-compilation of lisp_LISP files, it is recommanded that
  you switch to using lisp_DATA.  ELCFILES is no longer documented.

* 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.)

* 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.

* 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 used.  (You can probably get rid of m4/Makefile.am
  if you had one.)

  Some users where using the undocumented ACLOCAL_M4_SOURCES variable
  to override the aclocal.m4 dependencies computed (inaccurately) by
  older versions of Automake; this variable should be considered obsolete
  and will be flagged as such when running `automake -Wobsolete'.

* 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.


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:
* 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 François Pinard)
* strictness `normal' now renamed to `foreign'
* Renamed --install-missing to --add-missing
* Now handles AC_CONFIG_AUX_DIR
* Now handles TESTS macro
* DIST_OTHER renamed to EXTRA_DIST
* DIST_SUBDIRS is deprecated
* @ALLOCA@ and @LIBOBJS@ now work in _LDADD variables
* Better error messages in many cases
* Program names are canonicalized
* Added "check" prefix; from Gord Matzigkeit

New in 0.30:
* Bug fixes
* configure.in scanner knows about AC_PATH_XTRA, AC_OUTPUT ":" syntax
* Beginnings of a test suite
* Automatically adds -I options for $(srcdir), ".", and path to config.h
* Doesn't print anything when running
* Beginnings of MAINT_CHARSET support
* Can specify version in AUTOMAKE_OPTIONS
* Most errors recognizable by Emacs' M-x next-error
* Added --verbose option
* All "primary" variables now obsolete; use EXTRA_PRIMARY to supply
  configure-generated names
* Required macros now distributed in aclocal.m4
* New documentation
* --strictness=gnu is default

New in 0.29:
* Many bug fixes
* More sophisticated configure.in scanning; now understands ALLOCA and
  LIBOBJS directly, handles AC_CONFIG_HEADER more precisely, etc.
* TEXINFOS and MANS now obsolete; use info_TEXINFOS and man_MANS instead.
* CONFIG_HEADER variable now obsolete
* Can handle multiple Texinfo sources
* Allow hierarchies deeper than 2.  From Gord Matzigkeit.
* HEADERS variable no longer needed; now can put .h files directly into
  foo_SOURCES variable.
* Automake automatically rebuilds files listed in AC_OUTPUT.  The
  corresponding ".in" files are included in the distribution.

New in 0.28:
* Added --gnu and --gnits options
* More standards checking
* Bug fixes
* Cleaned up 'dist' targets
* Added AUTOMAKE_OPTIONS variable and several options
* Now scans configure.in to get some information (preliminary)

New in 0.27:
* Works with Perl 4 again

New in 0.26:
* Added --install-missing option.
* Pretty-prints generated macros and rules
* Comments in Makefile.am are placed more intelligently in Makefile.in
* Generates .PHONY target
* Rule or macro in Makefile.am now overrides contents of Automake file
* Substantial cleanups from François Pinard

New in 0.25:
* Bug fixes.
* Works with Perl 4 again.

New in 0.24:
* New uniform naming scheme.
* --strictness option
* Works with Perl 5
* '.c' files corresponding to '.y' or '.l' files are automatically
  distributed.
* Many bug fixes and cleanups

New in 0.23:
* Allow objects to be conditionally included in libraries via lib_LIBADD.

New in 0.22:
* Bug fixes in 'clean' code.
* Now generates 'installdirs' target.
* man page installation reworked.
* 'make dist' no longer re-creates all Makefile.in's.

New in 0.21:
* Reimplemented in Perl
* Added --amdir option (for debugging)
* Texinfo support cleaned up.
* Automatic de-ANSI-fication cleaned up.
* Cleaned up 'clean' targets.

New in 0.20:
* Automatic dependency tracking
* More documentation
* New variables DATA and PACKAGEDATA
* SCRIPTS installed using $(INSTALL_SCRIPT)
* No longer uses double-colon rules
* Bug fixes
* Changes in advance of internationalization

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