$OpenBSD: patch-src_ZoneArray_hpp,v 1.1 2008/01/18 09:52:34 ajacoutot Exp $
--- src/ZoneArray.hpp.orig	Fri Jan 18 10:15:47 2008
+++ src/ZoneArray.hpp	Fri Jan 18 10:16:01 2008
@@ -44,6 +44,10 @@
 #include <windows.h>
 #endif
 
+#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
