$NetBSD: patch-dd,v 1.2 2012/01/19 19:43:57 drochner Exp $

--- sysdeps/freebsd/open.c.orig	2011-07-24 19:13:56.000000000 +0000
+++ sysdeps/freebsd/open.c
@@ -45,6 +45,8 @@ glibtop_open_s (glibtop *server, const c
 
 #if defined(__FreeBSD_kernel__)
 	server->os_version_code = __FreeBSD_kernel_version;
+#elif defined(__DragonFly__)
+	server->os_version_code = __DragonFly_version;
 #else
 	server->os_version_code = __FreeBSD_version;
 #endif