$NetBSD: patch-au,v 1.1.2.2 2005/09/22 16:45:00 salo Exp $

--- error.c.orig	2005-07-15 16:08:36.000000000 +0000
+++ error.c
@@ -1108,7 +1108,6 @@ void
 rb_sys_fail(mesg)
     const char *mesg;
 {
-    extern int errno;
     int n = errno;
     VALUE arg;