kc3-lang/gnulib/m4/extensions.m4

• Show log

  Commit

• Hash : d0fe5568
  Author :
  Date : 2006-10-12T08:01:18
  

  * m4/extensions.m4 (AC_USE_SYSTEM_EXTENSIONS): Renamed from
  gl_USE_SYSTEM_EXTENSIONS, to fix a coreutils bootstrap failure
  reported by Jim Meyering.  All uses of cache variables renamed
  to match Autoconf's.
  (gl_USE_SYSTEM_EXTENSIONS): New macro, which simply requires
  the other one.
  

Download

• m4/extensions.m4

• # serial 4  -*- Autoconf -*-
  # Enable extensions on systems that normally disable them.
  
  # Copyright (C) 2003, 2006 Free Software Foundation, Inc.
  # This file is free software; the Free Software Foundation
  # gives unlimited permission to copy and/or distribute it,
  # with or without modifications, as long as this notice is preserved.
  
  # This definition of AC_USE_SYSTEM_EXTENSIONS is stolen from CVS
  # Autoconf.  Perhaps we can remove this once we can assume Autoconf
  # 2.61 or later everywhere, but since CVS Autoconf mutates rapidly
  # enough in this area it's likely we'll need to redefine
  # AC_USE_SYSTEM_EXTENSIONS for quite some time.
  
  # AC_USE_SYSTEM_EXTENSIONS
  # ------------------------
  # Enable extensions on systems that normally disable them,
  # typically due to standards-conformance issues.
  AC_DEFUN([AC_USE_SYSTEM_EXTENSIONS],
  [
    AC_BEFORE([$0], [AC_COMPILE_IFELSE])
    AC_BEFORE([$0], [AC_RUN_IFELSE])
  
    AC_REQUIRE([AC_GNU_SOURCE])
    AC_REQUIRE([AC_AIX])
    AC_REQUIRE([AC_MINIX])
  
    AH_VERBATIM([__EXTENSIONS__],
  [/* Enable extensions on Solaris.  */
  #ifndef __EXTENSIONS__
  # undef __EXTENSIONS__
  #endif
  #ifndef _POSIX_PTHREAD_SEMANTICS
  # undef _POSIX_PTHREAD_SEMANTICS
  #endif
  #ifndef _TANDEM_SOURCE
  # undef _TANDEM_SOURCE
  #endif])
    AC_CACHE_CHECK([whether it is safe to define __EXTENSIONS__],
      [ac_cv_safe_to_define___extensions__],
      [AC_COMPILE_IFELSE(
         [AC_LANG_PROGRAM([
  #	  define __EXTENSIONS__ 1
  	  AC_INCLUDES_DEFAULT])],
         [ac_cv_safe_to_define___extensions__=yes],
         [ac_cv_safe_to_define___extensions__=no])])
    test $ac_cv_safe_to_define___extensions__ = yes &&
      AC_DEFINE([__EXTENSIONS__])
    AC_DEFINE([_POSIX_PTHREAD_SEMANTICS])
    AC_DEFINE([_TANDEM_SOURCE])
  ])
  
  # gl_USE_SYSTEM_EXTENSIONS
  # ------------------------
  # Enable extensions on systems that normally disable them,
  # typically due to standards-conformance issues.
  AC_DEFUN([gl_USE_SYSTEM_EXTENSIONS],
    [AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])])
  

Download