$OpenBSD: patch-src_book_h,v 1.1 2004/07/06 04:00:11 mjc Exp $
--- src/book.h.orig	Thu Jun 24 15:25:55 2004
+++ src/book.h	Thu Jun 24 15:26:53 2004
@@ -31,8 +31,7 @@
  */
 static char const * bookbin[] = {
    "book.dat",
-   "/usr/share/games/gnuchess/book.dat",
-   "/usr/lib/games/gnuchess/book.dat",
+   BOOK_PREFIX"/share/gnuchess/book.dat",
    NULL
 };