GNU Autoconf 2.65 released [stable]

[Eric Blake]

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The GNU Autoconf team is pleased to announce the stable release of
Autoconf 2.65.  Autoconf is an extensible package of M4 macros that
produce shell scripts to automatically configure software source code
packages.  These scripts can adapt the packages to many kinds of UNIX-like
systems without manual user intervention.  Autoconf creates a
configuration script for a package from a template file that lists the
operating system features that the package can use, in the form of M4
macro calls.

This release updates Autoconf to use GPLv3, along with a license exception
that allows the release of configure scripts generated by Autoconf under
the license of your own package.  It fixes a few problems that were
identified with 2.64.  It also documents several cache variables, making
those a stable part of the interface when using autoconf macros.  See the
NEWS excerpt below for more details.

Here are the compressed sources:
  http://ftpmirror.gnu.org/autoconf/autoconf-2.65.tar.gz   (1.7MB)
  http://ftpmirror.gnu.org/autoconf/autoconf-2.65.tar.bz2   (1.3MB)
  http://ftpmirror.gnu.org/autoconf/autoconf-2.65.tar.xz   (1.1MB)

Here are the GPG detached signatures[*]:
  http://ftpmirror.gnu.org/autoconf/autoconf-2.65.tar.gz.sig
  http://ftpmirror.gnu.org/autoconf/autoconf-2.65.tar.bz2.sig
  http://ftpmirror.gnu.org/autoconf/autoconf-2.65.tar.xz.sig

To reduce load on the main server, use a mirror listed at:
  http://www.gnu.org/order/ftp.html

Here are the MD5 and SHA1 checksums:

46cfb40e0babf4c64f8325f03da81c9b  autoconf-2.65.tar.gz
a6de1cc6434cd64038b0a0ae4e252b33  autoconf-2.65.tar.bz2
dfb23a46ecb73a0abade39c053a6c5a1  autoconf-2.65.tar.xz
ae9e1ab046822007f25c88e1d8f2166e065da8c2  autoconf-2.65.tar.gz
9126ffb8d7d59f38f305ef53e208531d4b75bb87  autoconf-2.65.tar.bz2
348db555467d0eb8a16e4511b5f93cf0ca1d6c86  autoconf-2.65.tar.xz

[*] You can use either of the above signature files to verify that
the corresponding file (without the .sig suffix) is intact.  First,
be sure to download both the .sig file and the corresponding tarball.
Then, run a command like this:

  gpg --verify autoconf-2.65.tar.gz.sig

If that command fails because you don't have the required public key,
then run this command to import it:

  gpg --keyserver keys.gnupg.net --recv-keys F4850180

and rerun the `gpg --verify' command.

This release was bootstrapped with the following tools:
  Automake 1.11

./NEWS

* Major changes in Autoconf 2.65 (2009-11-21) [stable]
  Released by Eric Blake, based on git versions 2.64.*.

** Autoconf is now licensed under the General Public License version 3
   or later (GPLv3+).  As with earlier versions, the license includes
   an exception clause so that you may release a configure script
   generated by autoconf under the license of your own program.

** New macros to support Objective C++.
   AC_PROG_OBJCXX  AC_PROG_OBJCXXCPP

** The following undocumented autoconf macros, removed in Autoconf 2.64,
   have been reinstated:
   AH_CHECK_HEADERS

   These macros are present only for backwards compatibility purposes.

** The macro AC_LANG_COMPILER no longer fails on embedded systems that
   lack fopen in the C library, such as AVR or RTEMS (regression
   introduced in 2.64).

** The AC_FC_FREEFORM macro no longer suffers from a whitespace bug that
   made it fail with some Fortran compilers (regression introduced in
   2.64).

** The AC_TYPE_UINT64_T and AC_TYPE_INT64_T macros have been fixed to no
   longer mistakenly select a 32-bit type on some compilers (bug present
   since macros were introduced in 2.59c).

** The AC_FUNC_MMAP macro has been fixed to be portable to systems like
   Cygwin (bug present since macro was introduced in 2.0).

** The following documented autotest macros are new:
   AT_CHECK_EUNIT

** The following m4sugar macros now quote their expansion:
   m4_toupper  m4_tolower

** The following m4sugar macros are new:
   m4_escape

** The m4sugar macro m4_text_wrap now copes with embedded quoting without
   requiring quadrigraphs.  For uses like AC_ARG_VAR([a], [[b c]]),
   this gives the intuitive behavior of "[b c]" in the output (2.63
   gave the output of "[b], [c]", and 2.64 encountered a failure).

** The `$tmp' temporary directory used in config.status is documented for
   public use now.

** config.status now provides a --config option to produce the configuration.

** Many cache variables used by Autoconf's macros are now documented.

** Configure scripts work better on DJGPP by avoiding a bug present in
   the DJGPP port of bash 2.04 in handling 'return' in a shell
   function (regression introduced in 2.64).

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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