$NetBSD: patch-ai,v 1.4 2014/03/25 23:06:07 asau Exp $

--- src/pcm/pcm_adpcm.c.orig	2008-10-29 08:42:10.000000000 -0400
+++ src/pcm/pcm_adpcm.c
@@ -56,7 +56,9 @@ IMA compatibility project proceedings, V
   come across a good description of XA yet.
  */
 
+#if !defined(__NetBSD__) && !defined(__FreeBSD__) && !defined(__DragonFly__) && !defined(__sun)
 #include <byteswap.h>
+#endif
 #include "pcm_local.h"
 #include "pcm_plugin.h"