$OpenBSD: patch-src_modules_ZoneArray_hpp,v 1.1 2009/02/09 18:25:25 ajacoutot Exp $
--- src/modules/ZoneArray.hpp.orig	Mon Feb  2 17:49:24 2009
+++ src/modules/ZoneArray.hpp	Mon Feb  9 10:11:04 2009
@@ -39,6 +39,10 @@
 
 #include "StelPainter.hpp"
 
+#ifdef __OpenBSD__
+#include <unistd.h>
+#endif
+
 // Patch by Rainer Canavan for compilation on irix with mipspro compiler part 1
 #ifndef MAP_NORESERVE
 #  ifdef MAP_AUTORESRV
