[SCM] GNU Autoconf source repository annotated tag, v2.68b, created. v2.68b

[Eric Blake]

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http://git.sv.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=9d8e85a4c18668199bd00e95f1b76229c6a59eb8

The annotated tag, v2.68b has been created
        at  9d8e85a4c18668199bd00e95f1b76229c6a59eb8 (tag)
   tagging  eeabb77781ac6ff3dfe2905a70ae26f5ac70af73 (commit)
  replaces  v2.68
 tagged by  Eric Blake
        on  Thu Mar 1 21:28:57 2012 -0700

- Log -----------------------------------------------------------------
2.68b
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Benoit Sigoure (1):
      docs: fix typo in AC_PATH_PROG

Christian Rössel (1):
      Fix OpenMP flag detection for various Fortran compilers.

Colin Watson (1):
      docs: Document AC_FUNC_FORK cache variables.

Eric Blake (35):
      post-release administrivia
      doc: suggest a few more workarounds
      AS_LITERAL_IF: Treat raw = as literal again.
      docs: document dash bug in <>
      maint: document use of copyright ranges
      maint: resync upstream files
      maint: update copyright year
      doc: improve install.texi texinfo markup
      docs: fix description of m4_ifval
      maint: reflect recent copyright assignments
      doc: fix debug advice typo
      long long: don't abort configure when cross-compiling
      docs: document fourth argument of AC_RUN_IFELSE better
      maint: reflect recent copyright assignments
      maint: reflect recent copyright assignments
      docs: document NetBSD join bug
      doc: document dash bug with positional parameters
      doc: update quoting example
      doc: mention more about ksh cloexec behavior
      docs: fix minor doc problems
      docs: fix typo in shell example
      docs: refer to correct AC_RUN_IFELSE parameter name
      docs: relax documentation license by dropping cover text
      admin: mention recent copyright assignments
      doc: mention export portability hint
      doc: tweak previous commit
      INSTALL: convert to '' quoting, drop blank line at end
      tests: fix test regression due to additional output
      docs: tweak 'rm -f' limitations
      doc: mention more pitfalls of file mode tests
      m4sh: require that 'test -x' works
      m4sh: make AS_EXECUTABLE_P public
      tests: add test for AS_EXECUTABLE_P
      maint: resync files from upstream
      Release Version 2.68b.

Giulio Paci (1):
      Fix detection of link flags for fort77 on GNU/Linux.

Ian Lance Taylor (1):
      Add support for the Go programming language.

Jim Meyering (14):
      README-hacking: fix typo
      docs: improve the prose describing _AC_CHECK_TYPE_NEW_BODY
      avoid new warning about undefined $ARGV[0]
      getopt: refine syntax of previous change
      tests: avoid spurious failure for each gnu-fortran-using test
      doc: fix grammar/doubled-word errors
      maint: remove empty lines at EOF
      maint: tweak to avoid triggering space-tab-prohibiting syntax-check
      maint: placate syntax-check rules: exempt some false positives
      maint.mk: update from gnulib
      maint: also sync maint.mk and useless-if-before-free from gnulib
      maint: fix or disable failing syntax-check rules
      maint: convert .x-sc_* into exclude_file_name_regexp--sc_* exemptions
      maint: avoid "make syntax-check" failure

Jim Warhol (1):
      docs: fix typo in the manual.

Joshua G. Hale (1):
      docs: fix typo in AC_CONFIG_FILES example code.

Karl Berry (1):
      Avoid using @acronym in install.texi.

Luc Maisonobe (2):
      New macro AC_FC_MODULE_EXTENSION: Fortran 90 module extension.
      New macro AC_FC_MODULE_FLAG: Fortran 90 module include path.

Matt Kraai (1):
      docs: fix some typos

Mike Frysinger (1):
      AC_REQUIRE: include FAQ URL when warning about duplicate expansion

Patrick Welche (1):
      docs: fix a typo

Paul Eggert (25):
      docs: Posix now says "((cat))" isn't portable
      autoconf: don't assume sys/stat.h and sys/types.h when testing C89
      autotest: fix file descriptor leak
      autoconf: Use -D_STDC_C99=, not -xc99=all, with Solaris cc
      autoconf: new macro AC_HEADER_CHECK_STDBOOL
      autoconf: tune long long tests, particularly for c99
      * doc/autoconf.texi (File Descriptors): Fix texinfo typo.
      * lib/autoconf/functions.m4 (_AC_LIBOBJ_ALLOCA): Try to outsmart GCC.
      * lib/autoconf/functions.m4 (_AC_LIBOBJ_ALLOCA): Be even smarter.
      * tests/semantics.at (AC_REPLACE_FUNCS): Test for just-fixed bug.
      * lib/autoconf/specific.m4 (AC_USE_SYSTEM_EXTENSIONS): Quote cleanly.
      * lib/autoconf/specific.m4 (AC_SYS_LARGEFILE): Port to Mac OS X 10.5
      docs: modernize treatment of ns-resolution timestamps
      AC_C_CONST: don't reject gcc -Werror -Wall
      doc: document GNU make's \#
      AC_LANG_BOOL_COMPILE_TRY(C): port to g++ with warnings
      AS_LN_S: fall back on 'cp -pR' (not 'cp -p') if 'ln -s' fails
      Do not use "win" to refer to Microsoft Windows.
      autoconf: remove " -link" and ")" from xlf output
      maint: resync upstream files
      maint: update copyright year
      doc: clarify sed buffer limit
      doc: mention Bash 2.03 bug with backslash-newline
      doc: work around mingw-w64 alloca problem with example
      maint: replace FSF snail-mail addresses with URLs

Ralf Wildenhues (31):
      tests: normalize trailing spaces in gcc -E -dD output.
      tests: avoid AC_CACHE_CHECK test failure with dash.
      docs: mention configmake module for defining directories.
      docs: link to 'set -e' shell behavior overview.
      docs: link to Gnulib configmake documentation.
      Avoid reference to $CYGWIN in Fortran macros.
      docs: Tru64/OSF sh treats read as special builtin
      Fix LEXLIB and YYTEXT_POINTER with IRIX 6.5 flex 2.5.4.
      docs: update entry about unset.
      docs: do not use AIX 5.3 cp -R.
      docs: new sections about comments and whitespace in make macros.
      docs: document how to use comment characters in rules.
      docs: new section about whitespace trimmmed from make command-lines.
      docs: advise against HP-UX make due to time stamp semantics.
      Rebuild menus in the manual.
      config.status: do not quote $SHELL when rerunning configure.
      Reword Fortran macro documentation.
      docs: macro synopses document default failure cases.
      tests: accept f2c/fort77 as GNU Fortran 77.
      Update known compiler switches for Fortran and OpenMP macros.
      New macro AC_FC_CHECK_BOUNDS to enable Fortran array bounds checking.
      New macros AC_{F77,FC}_IMPLICIT_NONE to disable Fortran implicit int.
      AC_FC_SRCEXT: allow gfortran to compile .f77 files.
      docs: fix description of AC_F77_IMPLICIT_NONE.
      build: exclude M4 with buggy strstr
      docs: document several Fortran and OpenMP cache variables.
      Fix Cray Fortran flag for AC_FC_IMPLICIT_NONE.
      docs: BSD and Solaris make trailing space macro issue.
      New macro AC_FC_MODULE_OUTPUT_FLAG: module output directory.
      New macro AC_FC_PP_SRCEXT for preprocessed file extensions.
      New macro AC_FC_PP_DEFINE for the preprocessor define flag.

Reuben Thomas (1):
      docs: avoid first person, and credit history to David MacKenzie

Stefano Lattarini (24):
      docs: another parallel make issue
      docs: another Solaris sh bug with redirected `:'
      docs: fix minor typos
      docs: other issues with parallel BSD make
      docs: document Solaris 10 /bin/ksh and XPG4 sh 'unset' bug
      docs: more details about make VPATH rewriting woes
      docs: signal-related bugs and incompatibilities for the shells
      docs: korn shells can have $? > 256 for signal-terminated children
      docs: some fixlets in section about shell signal handling
      docs: we prefer US English spelling over British one
      fortran: define $GFC to "yes" if $FC is a GNU compiler
      docs: issue with shell functions and here-documents on Solaris
      m4sh: refactor _AS_DETECT_BETTER_SHELL, for future changes
      m4sh: allow forced re-execution with $CONFIG_SHELL, if it's set
      configure: will re-execute with $CONFIG_SHELL, if it's set
      getopt: fix diagnostic for missing mandatory option argument
      getopt: remove hack for special handling of "-" argument
      cosmetics: fix some typos in ChangeLog
      maint: generate ChangeLog from git log
      getopt: new Autom4te::Getopt module
      build: fix automake error due to missing ChangeLog
      getopt: sync from Automake repository
      maint: make position of gnulib checkout configurable
      maint: sync files from gnulib

Timo Kamph (1):
      * lib/autoconf/functions.m4 (_AC_REPLACE_FUNCS): Fix tr-cpp problem.

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