-#serial 5
+#serial 6
+
+# Copyright (C) 1998, 1999, 2001, 2003, 2004 Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
dnl Shamelessly cloned from acspecific.m4's AC_FUNC_UTIME_NULL,
dnl then do case-insensitive s/utime/utimes/.