$NetBSD: patch-ag,v 1.1 2006/01/24 19:01:45 joerg Exp $

--- lib/can_open.c.orig	2006-01-24 15:09:07.000000000 +0000
+++ lib/can_open.c
@@ -24,8 +24,6 @@ DEBUG_VAR(Debug,__FILE__,"file");
 void _exit();
 #endif
 
-extern int errno;		/* system error number */
-
 int can_open(file, mode)
      CONST char *file, *mode;
 {
