$OpenBSD$
--- neo/libs/zlib/minizip/ioapi.h.orig	Mon Jul 21 18:04:12 2014
+++ neo/libs/zlib/minizip/ioapi.h	Mon Jul 21 20:01:32 2014
@@ -53,7 +53,7 @@
 #define ftello64 ftell
 #define fseeko64 fseek
 #else
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__OpenBSD__)
 #define fopen64 fopen
 #define ftello64 ftello
 #define fseeko64 fseeko