$NetBSD: patch-ao,v 1.1 2005/12/27 13:47:11 joerg Exp $

--- etherload/os.h.orig	2005-12-18 20:29:45.000000000 +0000
+++ etherload/os.h
@@ -92,7 +92,7 @@
 # define USE_BPF
 #endif
 
-#if defined(FREEBSD) || defined(__FreeBSD__)
+#if defined(FREEBSD) || defined(__FreeBSD__) || defined(__DragonFly__)
 # define USE_BPF
 #endif