$OpenBSD$
--- neo/framework/minizip/ioapi.h.orig	Tue Dec 29 22:55:52 2015
+++ neo/framework/minizip/ioapi.h	Tue Dec 29 22:57:09 2015
@@ -59,7 +59,7 @@
 #define ftello64 ftell
 #define fseeko64 fseek
 #else
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__OpenBSD__)
 #define fopen64 fopen
 #define ftello64 ftello
 #define fseeko64 fseeko