$NetBSD: patch-ab,v 1.1 2006/01/03 14:35:32 joerg Exp $

--- src/dvdread/bswap.h.orig	2006-01-03 14:25:33.000000000 +0000
+++ src/dvdread/bswap.h
@@ -53,7 +53,7 @@
 #define B2N_32(x) x = swap32(x)
 #define B2N_64(x) x = swap64(x)
 
-#elif defined(__FreeBSD__) && __FreeBSD_version >= 470000
+#elif defined(__DragonFly__) || (defined(__FreeBSD__) && __FreeBSD_version >= 470000)
 #include <sys/endian.h>
 #define B2N_16(x) x = be16toh(x)
 #define B2N_32(x) x = be32toh(x)
