$OpenBSD$
--- src/tools/radiant/radiant/server.cpp.orig	Mon Apr 25 19:51:08 2011
+++ src/tools/radiant/radiant/server.cpp	Mon Apr 25 19:51:33 2011
@@ -153,7 +153,7 @@ class DynamicLibrary
 	}
 };
 
-#elif defined(__linux__) || defined (__FreeBSD__) || defined(__APPLE__)
+#elif defined(__linux__) || defined (__FreeBSD__) || defined(__APPLE__) || defined (__OpenBSD__)
 
 #include <dlfcn.h>