portability: fix several issues with M4 subprocess.

[bison.git] / m4 / subpipe.m4

diff --git a/m4/subpipe.m4 b/m4/subpipe.m4
index cf1a92d02fb15c396fbc00fb03622ea888d34a6f..774a8ab7a08c05e1e2b78b1c8c0c54d4d155d174 100644 (file)
--- a/m4/subpipe.m4
+++ b/m4/subpipe.m4
@@ -1,7 +1,8 @@
 # -*- Autoconf -*-
 # Checks required to run `subpipe'.
 #
-# Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
+# Copyright (C) 2002-2003, 2005, 2009-2010 Free Software Foundation,
+# Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by