autoconf-archive-2014.02.28 released [stable]

[Peter Simons]

The GNU Autoconf Archive is a collection of more than 450 macros for GNU
Autoconf that have been contributed as free software by friendly supporters of
the cause from all over the Internet. Every single one of those macros can be
re-used without imposing any restrictions whatsoever on the licensing of the
generated 'configure' script. In particular, it is possible to use all those
macros in 'configure' scripts that are meant for non-free software. This policy
is unusual for a Free Software Foundation project. The FSF firmly believes that
software ought to be free, and software licenses like the GPL are specifically
designed to ensure that derivative work based on free software must be free as
well. In case of Autoconf, however, an exception has been made, because
Autoconf is at such a pivotal position in the software development tool chain
that the benefits from having this tool available as widely as possible
outweigh the disadvantage that some authors may choose to use it, too, for
proprietary software.

Here are the compressed sources:
  http://ftpmirror.gnu.org/autoconf-archive/autoconf-archive-2014.02.28.tar.gz  
 (1.2 MB)
  http://ftpmirror.gnu.org/autoconf-archive/autoconf-archive-2014.02.28.tar.bz2 
 (836 kB)
  http://ftpmirror.gnu.org/autoconf-archive/autoconf-archive-2014.02.28.tar.xz  
 (551 kB)
  http://ftpmirror.gnu.org/autoconf-archive/autoconf-archive-2014.02.28.tar.lz  
 (550 kB)

Here are the GPG detached signatures[*]:
  
http://ftpmirror.gnu.org/autoconf-archive/autoconf-archive-2014.02.28.tar.gz.sig
  
http://ftpmirror.gnu.org/autoconf-archive/autoconf-archive-2014.02.28.tar.bz2.sig
  
http://ftpmirror.gnu.org/autoconf-archive/autoconf-archive-2014.02.28.tar.xz.sig
  
http://ftpmirror.gnu.org/autoconf-archive/autoconf-archive-2014.02.28.tar.lz.sig

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
.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-archive-2014.02.28.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 99089D72

and rerun the 'gpg --verify' command.

This release was bootstrapped with the following tools:
  Autoconf 2.69
  Automake 1.14.1
  Gnulib v0.1-4-g9c5dea9

NEWS

* Noteworthy changes in release 2014.02.28 (2014-02-28) [stable]

  AX_PERL_EXT has been extended to report back the installation prefix as
  PERL_EXT_PREFIX.

  AX_EXT has been extended to deal with a situation where
  AX_GCC_X86_CPUID(0x00000001) returns 'unknown'. Further details can be found
  at <http://savannah.gnu.org/patch/?8321>.

  AX_ZONEINFO has improved support for AIX. Further details can be found at
  <http://savannah.gnu.org/patch/?8313>.

  The set of search paths checked by AX_LUA has been extended, mostly in an
  effort to support FreeBSD and OpenBSD: <http://savannah.gnu.org/patch/?8318>
  and <http://savannah.gnu.org/patch/?8355> have further details.

  The new macros AX_CXX_HAVE_BAD_FUNCTION_CALL, AX_CXX_HAVE_BIND,
  AX_CXX_HAVE_BIT_AND, AX_CXX_HAVE_BIT_OR, AX_CXX_HAVE_BIT_XOR,
  AX_CXX_HAVE_CREF, AX_CXX_HAVE_FUNCTION, AX_CXX_HAVE_HASH,
  AX_CXX_HAVE_IS_BIND_EXPRESSION, AX_CXX_HAVE_IS_PLACEHOLDER,
  AX_CXX_HAVE_MEM_FN, AX_CXX_HAVE_REF, and AX_CXX_HAVE_REFERENCE_WRAPPER have
  been added.

  M4sugar and M4sh added to AX_PROG_JAR, AX_PROG_JAVA, AX_PROG_JAVAC, and
  AX_PROG_JAVADOC. Also fixed a path discrepancy with AX_JAVA_OPTIONS. See
  <http://savannah.gnu.org/patch/index.php?8279> for further details.

  The "mandatory" option in AX_CXX_COMPILE_STDCXX_11 has been fixed, and
  support for Gentoo's hardened GCC has been improved. Further details are at
  <http://savannah.gnu.org/patch/index.php?8287>.

  Three new macros were submitted in <http://savannah.gnu.org/patch/?8260>:

   - AX_GCC_BUILTIN is used to detect GCC-compatible built-in functions (e.g.
     AX_GCC_BUILTIN([__builtin_expect]) to check for __builtin_expect()).

   - AX_GCC_FUNC_ATTRIBUTE used to detect GCC-compatible function attributes
     (e.g. AX_GCC_FUNC_ATTRIBUTE([pure]) to check for _attribute_((pure))).

   - AX_GCC_VAR_ATTRIBUTE is used to detect GCC-compatible variable attributes
     (e.g. AX_GCC_VAR_ATTRIBUTE([unused]) to check for _attribute_((unused))).

  AX_BOOST_BASE has been updated to recognize the new multi-arch system paths
  on Ubuntu 13.10 x86_64. See <http://savannah.gnu.org/patch/?8254> for further
  details.

  Fixed a cut-and-paste error in AX_CREATE_PKGCONFIG_INFO. Further details are
  available at <http://savannah.gnu.org/patch/?8238>.

  Extended AX_CHECK_{PREPROC,COMPILE,LINK}_FLAG macros to accept an additional
  "input" argument. See <http://savannah.gnu.org/patch/?8247> for further
  details.

  Fix recognition of UltraSparc IIi in AX_GCC_ARCHFLAG. Further details can be
  found at <http://savannah.gnu.org/patch/?8235>.

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