Avoid relying on m4_copy which has changed in newer autoconf.

diff --git a/ChangeLog b/ChangeLog
index 2c90f3665d37c9551a4fb25fd00645a3d2ed9180..93dcebffb5ebab973a8a80113fc97c80bd1f8042 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2008-12-03  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
+            Bruno Haible  <bruno@clisp.org>
+
+       * m4/openmp.m4 (AC_OPENMP): Do not define with Autoconf 2.62 or newer.
+
 2008-11-29  Jim Meyering  <meyering@redhat.com>
 
        fts: fix a thinko

diff --git a/m4/openmp.m4 b/m4/openmp.m4
index 8fd510b9ed511bce78c9459d8e3f02c2c6bdc381..ba84ea0eb302b6c809fc9fb4ef5746b0d9b1aa37 100644 (file)
--- a/m4/openmp.m4
+++ b/m4/openmp.m4
@@ -1,11 +1,15 @@
-# openmp.m4 serial 4
-dnl Copyright (C) 2006-2007 Free Software Foundation, Inc.
+# openmp.m4 serial 5
+dnl Copyright (C) 2006-2008 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
 dnl This file can be removed once we assume autoconf >= 2.62.
 
+dnl Expand to nothing in autoconf >= 2.62. m4_copy has a different
+dnl semantic in autoconf > 2.63.
+m4_ifdef([AC_OPENMP], [], [
+
 # _AC_LANG_OPENMP
 # ---------------
 # Expands to some language dependent source code for testing the presence of
@@ -90,3 +94,5 @@ AC_DEFUN([AC_OPENMP],
   fi
   AC_SUBST([OPENMP_]_AC_LANG_PREFIX[FLAGS])
 ])
+
+])