$NetBSD: patch-ae,v 1.3 2000/10/15 01:53:41 jlam Exp $

--- common.h.orig	Fri Oct 15 23:41:21 1999
+++ common.h
@@ -375,6 +375,7 @@
 extern int nmovesfrombook;
 extern float maxtime;
 
+extern char *booksrc, *bookbin;
 
 enum Piece { empty, pawn, knight, bishop, rook, queen, king, bpawn };