$NetBSD: patch-ac,v 1.6 2006/03/02 21:28:23 joerg Exp $

--- sbr/discard.c.orig	2006-03-02 20:24:08.000000000 +0000
+++ sbr/discard.c
@@ -51,7 +51,7 @@ discard (FILE *io)
 # endif
 #endif
 
-#ifdef _FSTDIO
+#if defined(_FSTDIO) || defined(__DragonFly__)
     fpurge (io);
 #else
 # ifdef LINUX_STDIO