Autoconf 2.58

[Akim Demaille]

Hi!

Could you please upload Autoconf 2.58 in autoconf/?  Its location is
included below.  Thanks in advance!

----------------------------------------------------------------------
Subject: Autoconf 2.58 released

The Autoconf is happy to announce its release 2.58.  For the time
being it is only available from my web site, but hopefully it should
be on maintstream servers soon.

   Akim, on behalf of Alexandre, Jim, Paul and Tom.

Here are the compressed sources:
  http://www.lrde.epita.fr/~akim/download/autoconf-2.58.tar.gz   (1.2MB)
  http://www.lrde.epita.fr/~akim/download/autoconf-2.58.tar.bz2  (909KB)

And here are xdelta-style diffs:
  http://www.lrde.epita.fr/~akim/download/autoconf-2.57g-2.58.xdelta   (14KB)
  http://www.lrde.epita.fr/~akim/download/autoconf-2.57-2.58.xdelta   (156KB)

Here are GPG detached signatures:
  http://www.lrde.epita.fr/~akim/download/autoconf-2.58.tar.gz.asc
  http://www.lrde.epita.fr/~akim/download/autoconf-2.58.tar.bz2.asc

Here are the MD5 and SHA1 signatures:

1ca9011a39a8692eb429a60cce4e702d  autoconf-2.58.tar.gz
db3fa3069c6554b3505799c7e1022e2b  autoconf-2.58.tar.bz2
b771df6d32e3a4434d51f0377674541a  autoconf-2.57g-2.58.xdelta
14a2d2e43f701381733915f4546b5727  autoconf-2.57-2.58.xdelta
bee5e92a0f0d8b0fdc04f46d1cda491f6d5bee1c  autoconf-2.58.tar.gz
a500e4dc2fd1bbbabaf68d64454e97bf2872182d  autoconf-2.58.tar.bz2
33cb42193cff4199586c766e4fbfdbb114f5f531  autoconf-2.57g-2.58.xdelta
edcdf58382de96a787e97d00ad5de4d7ae269522  autoconf-2.57-2.58.xdelta

NEWS

** core.*
  core.* files are no longer removed, as they may be valid user files.

** autoreconf and auxiliary directory
  Autoreconf creates the auxiliary directory if needed.  This is
  especially useful for initial "bootstrapping" of fresh CVS checkouts.

** AC_CONFIG_MACRO_DIR
  Use this macro to declare the directory for local m4 macros for aclocal.

** AC_LIBOBJS
  No longer includes twice the same file in LIBOBJS if invoked
  multiple times.

** AC_CONFIG_COMMANDS
  The directory for its first argument is automatically created.  For
  instance, with

      AC_CONFIG_COMMANDS([src/modules.hh], [...])

  $top_builddir/src/ is created if needed.

** Autotest and local.at
  The optional file local.at is always included in Autotest test suites.

** Warnings
  The warnings are always issued, including with cached runs.
  This became a significant problem since aclocal and automake can
  run autoconf behind the scene.

** autoheader warnings
  The warnings of autoheader can be turned off, using --warning.
  For instance, -Wno-obsolete disables the complaints about acconfig.h
  and other deprecated constructs.

** New macros
  AC_C_RESTRICT, AC_INCLUDES_DEFAULT, AC_LANG_ASSERT, AC_LANG_WERROR,
  AS_SET_CATFILE.

** AC_DECL_SYS_SIGLIST
  Works again.

** AC_FUNC_MKTIME
  Now checks that mktime is the inverse of localtime.

** Improve DJGPP portability
  The Autoconf tools and configure behave better under DJGPP.

** Present But Cannot Be Compiled
  New FAQ section dedicated to the mystic

    configure: WARNING: pi.h: present but cannot be compiled
    configure: WARNING: pi.h: check for missing prerequisite headers?
    configure: WARNING: pi.h: proceeding with the preprocessor's result
      messages.

** Concurrent executions of autom4te
  autom4te now locks its internal files, which enables concurrent
  executions of autom4te, likely to happen if automake, autoconf,
  autoheader etc. are run simultaneously.

** Libtool
  Use of Libtool 1.5 and higher is encouraged.  Compatibility with
  Libtool pre-1.4 is not checked.

** Autotest
  Testsuites no longer rerun failed tests in verbose mode; instead,
  failures are logged while the test is run.

  In addition, expected failures can be marked as such.