$OpenBSD: patch-src_rrd_config_bottom_h,v 1.1 2013/11/05 17:49:01 sthen Exp $
--- src/rrd_config_bottom.h.orig	Thu May 23 08:55:07 2013
+++ src/rrd_config_bottom.h	Thu May 23 19:34:50 2013
@@ -15,12 +15,21 @@
 #endif
 
 /* FreeBSD 4.8 wants this included BEFORE sys/types.h */
+#ifdef FreeBSD
 #ifdef HAVE_SYS_MMAN_H
 # include <sys/mman.h>
 #endif
+#endif
 
 #ifdef HAVE_SYS_TYPES_H
 # include <sys/types.h>
+#endif
+
+/* ... but OpenBSD must have it included AFTER sys/types.h */
+#ifndef FreeBSD
+#ifdef HAVE_SYS_MMAN_H
+# include <sys/mman.h>
+#endif
 #endif
 
 #ifdef HAVE_SYS_PARAM_H