autoconf-2.68b released [beta]

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The GNU Autoconf team is pleased to announce the beta release of
Autoconf 2.68b.  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.

Among other improvements, this release fixes a couple of regressions
introduced in previous releases, greatly enhances Fortran support, adds
Go support, and updates the documentation license.  See a more complete
list below.  If all goes well in testing this release, the official 2.69
release should follow in the next week or so.

Here are the compressed sources:
  ftp://alpha.gnu.org/gnu/autoconf/autoconf-2.68b.tar.gz   (1.9MB)
  ftp://alpha.gnu.org/gnu/autoconf/autoconf-2.68b.tar.bz2   (1.4MB)
  ftp://alpha.gnu.org/gnu/autoconf/autoconf-2.68b.tar.xz   (1.2MB)

Here are the GPG detached signatures[*]:
  ftp://alpha.gnu.org/gnu/autoconf/autoconf-2.68b.tar.gz.sig
  ftp://alpha.gnu.org/gnu/autoconf/autoconf-2.68b.tar.bz2.sig
  ftp://alpha.gnu.org/gnu/autoconf/autoconf-2.68b.tar.xz.sig

The Autoconf team is considering releasing only .xz files for 2.69; if
this would be a hardship for you, and you need the .gz or .bz2 release,
please speak up now.

Use a mirror for higher download bandwidth:
  http://www.gnu.org/order/ftp.html

[*] Use a .sig file to verify that the corresponding file (without the
=2Esig 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-2.68b.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 A7A16B4A2527436A

and rerun the 'gpg --verify' command.

This release was bootstrapped with the following tools:
  Automake 1.11.1

NEWS

* Noteworthy changes in release 2.68b (2012-03-01) [beta]
  Released by Eric Blake, based on git versions 2.68.*.

** Autoconf-generated configure scripts now unconditionally re-execute
   themselves with $CONFIG_SHELL, if that's set in the environment.

** The texinfo documentation no longer specifies "front-cover" or
   "back-cover" texts, so that it may now be included in Debian's
   "main" section.

** Support for the Go programming language has been added.  The new macro=

   AC_LANG_GO sets variables GOC and GOFLAGS.

** AS_LITERAL_IF again treats '=3D' as a literal.  Regression introduced =
in
   2.66.

** The macro AS_EXECUTABLE_P, present since 2.50, is now documented.

** Macros

- AC_PROG_LN_S and AS_LN_S now fall back on 'cp -pR' (not 'cp -p') if
'ln -s'
  does not work.  This works better for symlinks to directories.

- New macro AC_HEADER_CHECK_STDBOOL.

- New and updated macros for Fortran support:

    AC_FC_CHECK_BOUNDS to enable array bounds checking
    AC_F77_IMPLICIT_NONE and AC_FC_IMPLICIT_NONE to disable implicit inte=
ger
    AC_FC_MODULE_EXTENSION to compute the Fortran 90 module name extensio=
n
    AC_FC_MODULE_FLAG for the Fortran 90 module search path flag
    AC_FC_MODULE_OUTPUT_FLAG for the Fortran 90 module output directory f=
lag
    AC_FC_PP_SRCEXT for preprocessed Fortran source files extensions
    AC_FC_PP_DEFINE for the Fortran preprocessor define flag

--=20
Eric Blake, on behalf of
The GNU Autoconf team


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