$NetBSD: patch-dl,v 1.1 2006/06/27 11:11:52 joerg Exp $

--- ef/Runtime/System/Thread.h.orig	2006-06-26 14:02:15.000000000 +0000
+++ ef/Runtime/System/Thread.h
@@ -36,7 +36,7 @@ typedef CONTEXT ThreadContext;
 typedef void* HANDLE;
 typedef struct sigcontext ThreadContext; 
 
-#elif defined (__FreeBSD__) || defined (__NetBSD__)
+#elif defined (__FreeBSD__) || defined (__NetBSD__) || defined(__DragonFly__)
 
 #include <machine/signal.h>
 
