--- compat.h.orig	Sun Jun 15 16:59:27 2003
+++ compat.h	Sun Jun 15 17:03:10 2003
@@ -91,7 +91,8 @@
 #define	bcopy(a, b, n)		memmove(b, a, n)
 #endif
 
-#if defined(BSD) || defined(BSD4_3)
+#if !(defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)) \
+	&& (defined(BSD) || defined(BSD4_3))
 #define	strchr(a, b)		index(a, b)
 #define	strrchr(a, b)		rindex(a, b)
 #define	memcmp(a, b, n)		bcmp(a, b, n)