$OpenBSD: patch-src_al_mixfunc_c,v 1.2 2008/04/04 09:33:10 jasper Exp $
--- src/al_mixfunc.c.orig	Fri Sep 30 11:20:51 2005
+++ src/al_mixfunc.c	Tue Apr  1 15:30:54 2008
@@ -38,7 +38,7 @@ ALboolean _alMixFuncInit( ALMixFunc *mf, ALuint size )
 		return AL_FALSE;
 	}
 
-#ifdef __MMX__
+#if defined(__MMX__) && !defined(__amd64__)
 	if (_alHaveMMX()) {
 		/* FIXME: we really ignore size. */
 		mf->max      = MMXMIXSOURCES;
