$NetBSD$

Fix for systems having btowc(3)
--- libuxre/regnfa.c.orig	Sun Feb  6 16:16:14 2005
+++ libuxre/regnfa.c
@@ -35,6 +35,8 @@
 typedef unsigned char	Uchar;
 typedef unsigned short	Ushort;
 
+#include "btowc.h"
+
 /*
 * Nondeterministic Finite Automata.
 */
