The Autoconf team is extremely pleased to announce Autoconf 2.53. We
hope it will address your problems, and make your life easier.
Enjoy!
Akim, Alexandre, Jim, Paul, Tom.
ftp://ftp.gnu.org/gnu/autoconf/autoconf-2.53.tar.gz (973 kB)
ftp://ftp.gnu.org/gnu/autoconf/autoconf-2.53.tar.bz2 (743 kB)
And here are xdelta-style diffs
ftp://ftp.gnu.org/gnu/autoconf/autoconf-2.52-2.53.xdelta (215 kB)
Here are the MD5 and SHA1 signatures for the compressed tar files:
42948310deb847982004a3b0d936f7bb autoconf-2.53.tar.gz
c121b003f51e293c2bf5a6105c721388 autoconf-2.53.tar.bz2
a9fe8460b4ed6f279f3d3f8a73eb39b19e93dc98 autoconf-2.53.tar.gz
c99aa737c0fe24c1cfcf0701e614e69f3ff07209 autoconf-2.53.tar.bz2
NEWS:
** Requirements
Perl 5.005_03 or later is required: autom4te is written in Perl and is
needed by autoconf. autoheader, autoreconf, ifnames, and autoscan are
rewritten in Perl.
** Documentation
- AC_INIT
Argument requirements, output variables, defined macros.
- M4sugar, M4sh, Autotest
First sketch.
- Double quoting macros
AC_TRY_CPP, AC_TRY_COMPILE, AC_TRY_LINK and AC_TRY_RUN.
- Licensing
The Autoconf manual is now distributed under the terms of the GNU FDL.
- Section `Hosts and Cross-Compilation'
Explains the rationale for the 2.5x changes in the cross-compilation
chain, and in the relationships between build, host, and target
types.
Emphasizes that `cross-compilation' == `--host is given'.
If you are working on compilers etc., be sure to read this section.
- Section `AC_LIBOBJ vs. LIBOBJS'
Explains why assigning LIBOBJS directly is now an error.
Details how to update the code.
** configure
- $LINENO
Now used instead of hard coded line numbers.
This eases the comparison of `configure's, and diminishes the
pressure over control version archives.
Automatic replacement for shells that don't support this feature.
- New output variables
@builddir@, @top_builddir@, @abs_srcdir@, @abs_top_srcdir@, @abs_builddir@,
@abs_top_builddir@.
** Emacs
Autoconf and Autotest modes are provided.
** Executables
- autom4te
New, used by the Autoconf suite to cache and speed up most processing.
- --force, -f
Supported by autom4te, autoconf and autoheader.
- --include, -I
Replaces --autoconf-dir and --localdir in autoconf, autoheader,
autoupdate, and autoreconf.
- autoreconf
No longer passes --cygnus, --foreign, --gnits, --gnu, --include-deps:
automake options are to be given via AUTOMAKE_OPTIONS.
- autoreconf
Runs gettextize and libtoolize when appropriate.
- autoreconf
--m4dir is no longer supported.
- autoreconf
Now runs only in the specified directories, defaulting to `.',
but understands AC_CONFIG_SUBDIRS for dependent directories.
Before, it used to run on all the `configure.ac' found in the
current tree.
Independent packages are properly updated.
** Bug fixes
- The top level $prefix is propagated to the AC_CONFIG_SUBDIRS configures.
- AC_TRY_RUN
Under the user pressure, $? is finally available. Probably a mistake.
- AC_F77_LIBRARY_LDFLAGS now supports the HP/UX f90 compiler.
- Precious variables accumulation
config.status could stack several copies of the precious variables
assignments.
- AC_PATH_PROG and family.
Works properly when given a literal path.
- AC_FUNC_SETPGRP
Somewhere since 2.13, the result had been reversed.
** C Macros
- AC_C_BIGENDIAN supports the cross-compiling case.
- AC_C_BIGENDIAN accepts ACTION-IF-TRUE, ACTION-IF-FALSE, and
ACTION-IF-UNKNOWN arguments. All are facultative, and the default
for ACTION-IF-TRUE is to define WORDS_BIGENDIAN like AC_C_BIGENDIAN
always did.
- AC_C_LONG_DOUBLE now succeeds only if `long double' has more range or
precision than `double'.
** Generic macros
- AC_INIT
It now defines the preprocessor symbols PACKAGE_NAME,
PACKAGE_TARNAME, PACKAGE_VERSION, PACKAGE_STRING, and
PACKAGE_BUGREPORT.
- AC_INIT
Admits a fourth optional parameter: the tar name.
- AC_CONFIG_COMMANDS, HEADERS, FILES, LINKS.
Provide the user with srcdir, ac_srcdir, ac_top_srcdir, ac_builddir,
ac_top_builddir, ac_abs_srcdir, ac_abs_top_srcdir, ac_abs_builddir,
ac_abs_top_builddir.
- AC_CONFIG_COMMANDS, HEADERS, FILES, LINKS and AC_OUTPUT.
Are much less expensive when using long lists of files.
- AC_PREFIX_PROGRAM
Works with shell variables, and non alphanumeric names.
** Library macros
- AC_FUNC_STRERROR_R now sets STRERROR_R_CHAR_P, not HAVE_WORKING_STRERROR_R,
because POSIX 1003.1-200x draft 7 says strerror_r returns int, not char *.
- AC_FUNC_STRTOD substitutes POW_LIB.
- AC_FUNC_STRNLEN
New.
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