diff --git a/bgpd/bgp_regex.h b/bgpd/bgp_regex.h
new file mode 100644
index 0000000..0829dd9
--- /dev/null
+++ b/bgpd/bgp_regex.h
@@ -0,0 +1,31 @@
+/* AS regular expression routine
+   Copyright (C) 1999 Kunihiro Ishiguro
+
+This file is part of GNU Zebra.
+
+GNU Zebra is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+GNU Zebra is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Zebra; see the file COPYING.  If not, write to the Free
+Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA.  */
+
+#include <zebra.h>
+
+#ifdef HAVE_GNU_REGEX
+#include <regex.h>
+#else
+#include "regex-gnu.h"
+#endif /* HAVE_GNU_REGEX */
+
+void bgp_regex_free (regex_t *regex);
+regex_t *bgp_regcomp (char *str);
+int bgp_regexec (regex_t *regex, struct aspath *aspath);