$NetBSD: patch-ad,v 1.4 2006/04/28 20:33:30 joerg Exp $

--- include/dx/arch.h.orig	2003-07-12 00:12:02.000000000 +0000
+++ include/dx/arch.h	2004-04-20 19:22:51.000000000 +0000
@@ -180,7 +180,7 @@
 /* 
  * FreeBSD (and probably NetBSD and OpenBSD)
  */
-#if defined(freebsd)
+#if defined(freebsd) || defined(__NetBSD__) || defined(__DragonFly__)
 
 #undef F_CHAR_READY
 #define F_CHAR_READY(fp) ((fp)->_r > 0 || (fp)->_ub._base)