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| author | bstarynk <bstarynk@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-07-31 06:16:50 +0000 |
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| committer | bstarynk <bstarynk@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-07-31 06:16:50 +0000 |
| commit | 80840a5fd2b47202cc9d2266cf9a6b1f5c2e6ce2 (patch) | |
| tree | 8e564e5ac627ae476fa0e8d322261e6313f70b07 /config/override.m4 | |
| parent | 6c3f1ba6c0116a23ada0a56e7ef8b55e4eeaffa0 (diff) | |
| download | gcc-80840a5fd2b47202cc9d2266cf9a6b1f5c2e6ce2.tar.gz | |
2009-07-31 Basile Starynkevitch <basile@starynkevitch.net>
MELT branch merged with trunk rev 150307
added manually libstdc++-v3/include/std/chrono from trunk.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/melt-branch@150308 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'config/override.m4')
| -rw-r--r-- | config/override.m4 | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/config/override.m4 b/config/override.m4 index 9bb149620c4..bf112db99a8 100644 --- a/config/override.m4 +++ b/config/override.m4 @@ -12,6 +12,16 @@ dnl dnl The _GCC_AUTOCONF_VERSION_TEST ensures that exactly the desired dnl Autoconf version is used. It should be kept for consistency. +dnl Provide m4_copy_force and m4_rename_force for old Autoconf versions. + +m4_ifndef([m4_copy_force], +[m4_define([m4_copy_force], +[m4_ifdef([$2], [m4_undefine([$2])])m4_copy($@)])]) + +m4_ifndef([m4_rename_force], +[m4_define([m4_rename_force], +[m4_ifdef([$2], [m4_undefine([$2])])m4_rename($@)])]) + dnl m4_PACKAGE_VERSION is an undocumented Autoconf macro. dnl We use it because this fix is intended for 2.59 only. dnl A feature test for the broken AC_CONFIG_SUBDIRS instead @@ -25,7 +35,7 @@ ifdef([m4_PACKAGE_VERSION], [dnl AC_DEFUN a commonly used macro so this file is picked up. m4_copy([AC_PREREQ], [_AC_PREREQ]) AC_DEFUN([AC_PREREQ], [frob]) -m4_copy([_AC_PREREQ], [AC_PREREQ]) +m4_copy_force([_AC_PREREQ], [AC_PREREQ]) dnl Ensure exactly this Autoconf version is used |