Add a copyright notice.

diff --git a/m4/mbswidth.m4 b/m4/mbswidth.m4
index f61be107a8d49fb00524c8ab4c42f2940f5a75d1..ffa6ece3bf17d0a7b23c56a298b476bba730c722 100644 (file)
--- a/m4/mbswidth.m4
+++ b/m4/mbswidth.m4
@@ -1,4 +1,10 @@
-#serial 11
+# mbswidth.m4 serial 11
+dnl Copyright (C) 2000-2002, 2004 Free Software Foundation, Inc.
+dnl This file is free software, distributed under the terms of the GNU
+dnl General Public License.  As a special exception to the GNU General
+dnl Public License, this file may be distributed as part of a program
+dnl that contains a configuration script generated by Autoconf, under
+dnl the same distribution terms as the rest of that program.
 
 dnl autoconf tests required for use of mbswidth.c
 dnl From Bruno Haible.