$NetBSD$

--- data.h.orig	2005-11-29 06:09:00.000000000 +0000
+++ data.h
@@ -65,7 +65,6 @@ extern int bcnt;
 #ifdef DEBUG
 extern int debug;
 #endif	/* DEBUG */
-extern int errno;
 extern int max_plus1;
 extern int switchfb[];
 
