$NetBSD: patch-ai,v 1.2 2006/01/12 19:48:02 joerg Exp $

--- mfs.h.orig	1994-06-22 14:24:51.000000000 +0000
+++ mfs.h
@@ -45,9 +45,11 @@ typedef unsigned char boolean_t;
 
 #include "mfs_link.h"
 
+#if BSD < 199306		/* newer BSDs have it in <stdio.h> */
 extern char *sys_errlist[];
+#endif
 
-#if !defined(__hpux) && !defined(SOLARIS) && !defined(SGI) && !defined(RS6000)
+#if !defined(__hpux) && !defined(SOLARIS) && !defined(SGI) && !defined(RS6000) && !defined(BSD)
 #define strerror(x) sys_errlist[x]
 #endif