$NetBSD: patch-aa,v 1.12 2015/05/03 01:45:33 wen Exp $

--- joe/b.c.orig	2015-05-03 09:33:50.000000000 +0000
+++ joe/b.c
@@ -19,8 +19,6 @@
 #endif
 #endif
 
-extern int errno;
-
 #ifdef WITH_SELINUX
 #include <selinux/selinux.h>
 static int selinux_enabled = -1;