[SCM] GNU Autoconf source repository annotated tag, v2.64, created. v2.64

[Eric Blake]

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http://git.sv.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=035de9f99f550ff0c5e59914b77678e5c112cd08

The annotated tag, v2.64 has been created
        at  035de9f99f550ff0c5e59914b77678e5c112cd08 (tag)
   tagging  936160f7619cb7fddbc424bb5cb9a2f997d8e166 (commit)
  replaces  v2.63b
 tagged by  Eric Blake
        on  Sun Jul 26 21:27:29 2009 -0600

- Log -----------------------------------------------------------------
2.64
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Bruno Haible (1):
      Clarify autom4te debugging tips.

Eric Blake (63):
      ./.prev-version: Record previous version: 2.63b.
      Hard fail any test with syntax errors.
      Handle shell comments in AT_CHECK.
      Reduce testsuite size.
      Fix regression in empty test.
      Avoid problems caused by deleting in-use directory.
      Add undocumented _AS_CLEAN_DIR.
      Test parallel handling of syntax error.
      Finish upgrade to GFDL 1.3.
      Add m4_blank and friends.
      Make AS_IF, AS_CASE, and AS_FOR more robust to blank arguments.
      Add cross-reference to new macros.
      Improve documentation about if exit status.
      Mention latest rules about make and set -e.
      Improve documentation related to expanded-before-required.
      Fix yesterday's regression in AS_IF.
      Teach AT_CHECK about hard failures.
      Add stdout-nolog and ignore-nolog to AT_CHECK.
      Test that autotest handles binary output.
      Shuffle maintainer-specific rules.
      Add m4_argn.
      Change FOO placeholder to use @var{text} instead.
      Rename AT_CHECK_NOESCAPE to AT_CHECK_UNQUOTED.
      Make AT_CHECK_UNQUOTED more like AC_DEFINE_UNQUOTED.
      manual: Use consistent spelling of here-document.
      Fix quoting of m4 macros in AT_CHECK.
      Document zsh bug with empty commands.
      Don't mention undocumented interface in NEWS.
      Update some upstream files.
      Update uses of all-permissive license.
      Sanitize more problematic environment variables.
      Document fallback behavior of AC_PROG_LEX.
      Improve documentation on trap pitfalls.
      Clarify m4_copy semantics.
      Simplify AC_LANG(Fortran).
      Reinstate _AC_CHECK_HEADER_OLD for gcc.
      Add m4_copy_force, m4_rename_force.
      Fix AC_CHECK_HEADER infloop for gcc.
      Skip test on shells that can't catch syntax failure.
      Avoid syntax error in ash.
      Make parallel testsuite more portable.
      Skip parallel tests when zsh 'set -m' fails.
      Fix testsuite under dash.
      Fix test typo.
      Fix previous patch.
      Fix nits in recent patches.
      Guarantee that exit status trumps output matching.
      Disable asynchronous job notification for parallel tests.
      Document that $srcdir can be used during configure.
      Don't hide leading space in autom4te --trace output.
      Fix test of autom4te from stdin.
      Run more tests under Solaris.
      Fix AS_EXIT for FreeBSD sh.
      Improve NEWS wording.
      Let autoheader see through m4 macros in AC_DEFINE.
      Fix font-lock.
      Document some autom4te debugging tips.
      Require m4 1.4.6, and fix testsuite to support this version.
      Recognize new m4sugar keywords.
      Update some upstream files.
      Basic improvements to INSTALL.
      Document some optional features in INSTALL.
      Release Version 2.64.

Jan Madzik (1):
      Avoid AIX 6.1 ksh88 ECHO_C command substitution bug.

Jim Meyering (2):
      Fix syntax errors in autoconf.texi.
      Improve testsuite's --help output.

Paolo Bonzini (11):
      Make a less conservative cross-compilation guess for AC_FUNC_UTIME_NULL.
      manual: another grammar improvement.
      Move atlocal code to configure
      introduce AT_SKIP_IF and AT_FAIL_IF
      Simplify handling of autotest tracing
      use m4 -g when available
      revert previous push
      Move atlocal feature tests to configure
      Simplify handling of autotest tracing
      use m4 -g when available
      introduce AT_SKIP_IF and AT_FAIL_IF

Patrick Welche (1):
      Also try X11R7 when looking for X11 files, for NetBSD.

Ralf Wildenhues (19):
      Automake relies on the undocumented `_AC_COMPILER_EXEEXT' macro.
      Note that AC_DEFUN is needed for aclocal.
      Skip `Multiple languages' test if CC is a C++ compiler.
      Document awk and config.status line length limitations.
      Add traces for AM_SILENT_RULES.
      Improve and clarify `config.status' usage documentation.
      manual: clarify m4_if synopsis.
      Adjust channel definitions for new Automake `ordered' flag.
      Sync autom4te perl modules from Automake.
      manual: fix trivial grammar errors.
      Revert bogus change in last commit.
      Improve description of AC_PROG_CC_C89 and AC_PROG_CC_C99.
      New test to ensure autom4te cache file locking works.
      Limit stderr logging for C compiler version.
      testsuite: skip `Multiple languages' test without C++ compiler.
      New manual section `Parallel Make'.
      Document VPATH = $(variable) issue in VPATH chapter.
      Fix concurrent autom4te.cache directory creation race.
      Ignore messages on stderr when testing for the zsh issue.

Romain Lenglet (3):
      New AC_ERLANG_SUBST_ERTS_VER macro.
      Add autotests for Erlang macros.
      Clean up temporary files generated by Erlang macros.

Steven G. Johnson (1):
      Create a file in test program when detecting cross-compilation.

William Pursell (1):
      Fix grammaro in documenation.

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