diff options
| author |  Thomas Guyot-Sionnest <dermoth@aei.ca>
| 2010-04-07 21:11:46 -0400 |
|---|---|---|
| committer | Thomas Guyot-Sionnest <dermoth@aei.ca>
| 2010-04-12 21:26:35 -0400 |
| commit | 74da141e618ef99959d509cb2e7be35a348a39db (patch) | |
| tree | 88ebc38b381a1021fc2d74864a71e230ae591c3d /gl/m4/extensions.m4 | |
| parent | c63a4f726a0b6ad8cf6040f947754a81fd4683bb (diff) | |
| download | monitoring-plugins-74da141e618ef99959d509cb2e7be35a348a39db.tar.gz | |
Sync with the latest Gnulib code (177f525)
Signed-off-by: Thomas Guyot-Sionnest <dermoth@aei.ca>
Diffstat (limited to 'gl/m4/extensions.m4')
| -rw-r--r-- | gl/m4/extensions.m4 | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/gl/m4/extensions.m4 b/gl/m4/extensions.m4 index ba6d5e19..7d9458a8 100644 --- a/gl/m4/extensions.m4 +++ b/gl/m4/extensions.m4 @@ -1,7 +1,7 @@ -# serial 8 -*- Autoconf -*- +# serial 9 -*- Autoconf -*- # Enable extensions on systems that normally disable them. -# Copyright (C) 2003, 2006-2009 Free Software Foundation, Inc. +# Copyright (C) 2003, 2006-2010 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. @@ -12,6 +12,20 @@ # enough in this area it's likely we'll need to redefine # AC_USE_SYSTEM_EXTENSIONS for quite some time. +# If autoconf reports a warning +# warning: AC_COMPILE_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS +# or warning: AC_RUN_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS +# the fix is +# 1) to ensure that AC_USE_SYSTEM_EXTENSIONS is never directly invoked +# but always AC_REQUIREd, +# 2) to ensure that for each occurrence of +# AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) +# or +# AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) +# the corresponding gnulib module description has 'extensions' among +# its dependencies. This will ensure that the gl_USE_SYSTEM_EXTENSIONS +# invocation occurs in gl_EARLY, not in gl_INIT. + # AC_USE_SYSTEM_EXTENSIONS # ------------------------ # Enable extensions on systems that normally disable them, @@ -74,8 +88,8 @@ AC_BEFORE([$0], [AC_RUN_IFELSE])dnl [ac_cv_safe_to_define___extensions__], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[ -# define __EXTENSIONS__ 1 - ]AC_INCLUDES_DEFAULT])], +# 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 && |