-* Major changes in release 2.14a -*- outline -*-
+* Major changes in Autoconf 2.14a -*- outline -*-
+
+** Use of Automake
+All the standard GNU Makefile targets are supported. The layout has
+changed: m4/ holds the m4 extensions Autoconf needs for its
+configuration, doc/ contains the documentation, and tests/ the test
+suite.
+
+** Man pages are provided
+For autoconf, autoreconf, autoupdate, autoheader, autoscan and ifnames.
+
+** autoconf
+- --trace
+ Provides a safe and powerful means to trace the macro uses. This
+ provide the parsing layer for tools which need to `study'
+ configure.in.
+
+** autoupdate
+autoupdate is now much more powerful, and is able to provide the glue
+code which might be needed to move from an old macro to its newer
+equivalent.
+
+** configure
+- --help, --help=long, -hl
+ no longer dumps useless items.
+- --help=short, -hs
+ lists only specific options.
+- --help=recursive, -hr
+ displays the help of all the embedded packages.
** config.status
-- much faster on most architectures
-- has a useful --help
+- faster
+ Much faster on most architectures
- concurrent executions
-It is safe to use `make -j' with config.status.
-- files to links (AC_LINK_FILES) can be specified via CONFIG_LINKS.
-- commands to run can be specified via CONFIG_COMMANDS.
+ It is safe to use `make -j' with config.status.
+- files to links (AC_CONFIG_LINKS) can be specified via CONFIG_LINKS.
+- commands to run (AC_CONFIG_COMMANDS) can be specified via CONFIG_COMMANDS.
- human interface improved
-It is possible to invoke
- ./config.status foobar
-instead of the former form (still valid)
- CONFIG_COMMANDS= CONFIG_HEADERS= CONFIG_LINKS= \
- CONFIG_FILES=foobar:foo.in:bar.in \
- ./config.status
-The same holds for configuration headers and links.
-
-** New macros
-- AC_CHECK_DECL and AC_CHECK_DECLS
-To check whether a symbol is declared.
+ It is possible to invoke
+ ./config.status foobar
+ instead of the former form (still valid)
+ CONFIG_COMMANDS= CONFIG_HEADERS= CONFIG_LINKS= \
+ CONFIG_FILES=foobar:foo.in:bar.in \
+ ./config.status
+ The same holds for configuration headers and links.
+ You can instantiate unknown files and headers:
+ ./config.status --header foo.h:foo.h.in --file bar:baz
+- has a useful --help
+
+
+** Identity Macros
+- AC_COPYRIGHT
+ Specify additional copyright information.
+
+- AC_PACKAGE
+ Identify the configure.in's package.
+
+** General changes.
+- Uniform quotation
+ Most macros, if not all, now strictly follow the `one quotation
+ level' rule. This results in a more predictable expansion.
+
+** Generic Macros
+- AC_CHECK families
+ The interface of the AC_CHECK families of macros (decl, header,
+ type, member, func) is now uniform. They support the same set of
+ default includes.
+
+- AC_CHECK_DECL, AC_CHECK_DECLS
+ To check whether a symbol is declared.
+
+- AC_CHECK_TYPE
+ The test it performs is much more robust than previously, and makes
+ it possible to test builtin types in addition to typedefs.
+ It is now schizophrenic:
+ - AC_CHECK_TYPE(TYPE, REPLACEMENT)
+ remains for backward compatibility, but its use is discouraged.
+ - AC_CHECK_TYPE(TYPE, IF-FOUND, IF-NOT-FOUND, INCLUDES)
+ behaves exactly like the other AC_CHECK macros.
+
+- AC_CHECK_TYPES
+ Checks whether given types are supported by the system.
+
+- AC_CHECK_MEMBER, AC_CHECK_MEMBERS
+ Check for given members in aggregates (e.g., pw_gecos in struct
+ passwd).
+
- AC_HELP_STRING
-To format an Autoconf macro's help string so that it looks pretty when
-the user executes `configure --help'.
+ To format an Autoconf macro's help string so that it looks pretty
+ when the user executes `configure --help'.
+
- AC_ARG_VAR
-Document and ask for the registration of an envvar.
+ Document and ask for the registration of an envvar.
+
- AC_CONFIG_LINKS
-Replaces the now obsolete AC_LINK_FILES.
+ Replaces the now obsolete AC_LINK_FILES.
+
- AC_CONFIG_COMMANDS
-To add new actions to config.status. Should be used instead of
-AC_OUTPUT_COMMANDS.
+ To add new actions to config.status. Should be used instead of
+ AC_OUTPUT_COMMANDS.
+
+- AC_PROG_CC_STDC
+ Checks if the compiler supports ISO C, included when needs special
+ options.
+
+** Test suite
+The testsuite no longer uses DejaGNU. It should be easy to submit
+test cases in this new frame work.
+
+** Autoheader
+The internal machinery of Autoheader has completely changed. As a
+result, using an `acconfig.h' should be considered as obsoleted, and
+you are encouraged to get rid of it using the AH_DEFUN macro.
** Environment variables are kept when reconfiguring.
The previous scheme to set envvar before running configure was
transparent for C/C++ to call Fortran 77 routines, and Fortran 77 to
call C/C++ routines. See the Texinfo documentation for details.
\f
-Major changes in release 2.14:
+Major changes in Autoconf 2.14:
There was no release of GNU Autoconf 2.14.
\f
-Major changes in release 2.13:
+Major changes in Autoconf 2.13:
* Support for building on Win32 systems where the only available C or
C++ compiler is the Microsoft Visual C++ command line compiler
* Support for Fortran 77. See the Texinfo documentation for details.
* Bug fixes and workarounds for quirky bugs in vendor utilities.
\f
-Major changes in release 2.12:
+Major changes in Autoconf 2.12:
* AC_OUTPUT and AC_CONFIG_HEADER can create output files by
concatenating multiple input files separated by colons, like so:
* New macro AC_OUTPUT_COMMANDS adds more commands to run in config.status.
* Bug fixes.
\f
-Major changes in release 2.11:
+Major changes in Autoconf 2.11:
* AC_PROG_CC and AC_PROG_CXX check whether the compiler works.
They also default CFLAGS/CXXFLAGS to "-g -O2" for gcc, instead of "-g -O".
* config.sub and config.guess recognize more system types.
* Bug fixes.
\f
-Major changes in release 2.10:
+Major changes in Autoconf 2.10:
* Bug fixes.
* The cache variable names used by `AC_CHECK_LIB(LIB, FUNC, ...)' has
changed: now $ac_cv_lib_LIB_FUNC, previously $ac_cv_lib_LIB.
\f
-Major changes in releases 2.6 through 2.9:
+Major changes in Autoconfs 2.6 through 2.9:
* Bug fixes.
\f
-Major changes in release 2.5:
+Major changes in Autoconf 2.5:
* New configure options --bindir, --libdir, --datadir, etc., with
corresponding output variables.
AC_CHECK_TOOL can search a path other than $PATH.
* AC_CHECK_SIZEOF takes an optional size to use when cross-compiling.
\f
-Major changes in release 2.4:
+Major changes in Autoconf 2.4:
* Fix a few bugs found by Emacs testers.
\f
-Major changes in release 2.3:
+Major changes in Autoconf 2.3:
* Fix the cleanup trap in several ways.
* Handle C compilers that are picky about option placement.
* ifnames gets the version number from the right directory.
\f
-Major changes in release 2.2:
+Major changes in Autoconf 2.2:
* The ifnames utility is much faster but requires a "new awk" interpreter.
* AC_CHECK_LIB and AC_HAVE_LIBRARY check and add the new
* Lots of bug fixes.
* Many additions to the TODO file :-)
\f
-Major changes in release 2.1:
+Major changes in Autoconf 2.1:
* Fix C++ problems.
* More explanations in the manual.
Autoconf now makes heavy use of m4 diversions, which were implemented
inefficiently in GNU m4 releases before 1.3.
-Major changes in release 2.0:
+Major changes in Autoconf 2.0:
** New copyright terms:
* There are no restrictions on distribution or use of configure scripts.
* acsite.m4 is the new name for the system-wide aclocal.m4.
* Has a DejaGnu test suite.
\f
-Major changes in release 1.11:
+Major changes in Autoconf 1.11:
* AC_PROG_INSTALL calls install.sh with the -c option.
* AC_SET_MAKE cleans up after itself.
Plus a few other bug fixes.
\f
-Major changes in release 1.10:
+Major changes in Autoconf 1.10:
* autoheader uses config.h.bot if present, analogous to config.h.top.
* AC_PROG_INSTALL looks for install.sh in srcdir or srcdir/.. and
Plus several bugs fixed.
\f
-Major changes in release 1.9:
+Major changes in Autoconf 1.9:
* AC_YYTEXT_POINTER replaces AC_DECLARE_YYTEXT.
* AC_SIZEOF_TYPE generates the cpp symbol name automatically,
* AC_FIND_XTRA adds libraries to the variable X_EXTRA_LIBS.
* AC_PROG_INSTALL finds OSF/1 installbsd.
\f
-Major changes in release 1.8:
+Major changes in Autoconf 1.8:
** New macros:
* New macros AC_LANG_C, AC_LANG_CPLUSPLUS, AC_LANG_SAVE, AC_LANG_RESTORE,
yet been (variously) finished, integrated, tested, or documented enough
to release yet.
\f
-Major changes in release 1.7:
+Major changes in Autoconf 1.7:
* New macro AC_OBSOLETE.
* Bugs in Makefile.in fixed.
* AC_LONG_FILE_NAMES improved.
\f
-Major changes in release 1.6:
+Major changes in Autoconf 1.6:
* New macro AC_LONG_64_BITS.
* Multiple .h files can be created.
modify its behavior.
* The usual bug fixes.
\f
-Major changes in release 1.5:
+Major changes in Autoconf 1.5:
* New macros AC_FIND_X, AC_OFF_T, AC_STAT_MACROS_BROKEN, AC_REVISION.
* autoconf and autoheader scripts have GNU standards conforming
--version and --help options (they print their message and exit).
* Many bug fixes.
\f
-Major changes in release 1.4:
+Major changes in Autoconf 1.4:
* New macros AC_HAVE_POUNDBANG, AC_TIME_WITH_SYS_TIME, AC_LONG_DOUBLE,
AC_GETGROUPS_T, AC_DEFINE_UNQUOTED.
* AC_CONST works much more reliably on more systems.
* Many bug fixes.
\f
-Major changes in release 1.3:
+Major changes in Autoconf 1.3:
configure no longer requires awk for packages that use a config.h.
Support handling --with-PACKAGE options.
Add AC_HAVE_LIBRARY to check for non-default libraries.
Function checking should work with future GNU libc releases.
\f
-Major changes in release 1.2:
+Major changes in Autoconf 1.2:
The --srcdir option is now usually unnecessary.
Add a file containing sample comments describing CPP macros.
Substituted variable values can now contain commas.
Fix bugs in various feature checks.
\f
-Major changes in release 1.1:
+Major changes in Autoconf 1.1:
Added AC_STRCOLL macro.
Made AC_GETLOADAVG check for more things.
projects / thirdparty / autoconf.git / commitdiff
