$NetBSD: patch-ai,v 1.1 2005/06/04 10:44:29 wiz Exp $

--- agrep/compat.c.orig	2003-01-25 21:09:08.000000000 +0100
+++ agrep/compat.c
@@ -16,7 +16,9 @@ extern JUMP;
 extern char Progname[MAXNAME];
 extern int agrep_initialfd;
 extern int EXITONERROR;
+#ifndef errno
 extern int errno;
+#endif
 
 int
 compat()