Avoid relying on m4_copy which has changed in newer autoconf.

[gnulib.git] / m4 / openmp.m4

diff --git a/m4/openmp.m4 b/m4/openmp.m4
index 8fd510b..ba84ea0 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])
 ])
+
+])