$NetBSD$

--- tests/try_portable.c.orig	2005-12-13 15:27:59.000000000 +0000
+++ tests/try_portable.c
@@ -56,7 +56,6 @@ get more information are about. */
 
 #include "defs.h"
 
-extern int errno;
 #define BYTES_PER_MB  1048576
 
 int try_portable(struct computer_data *data)
