diff --git a/libvo/fastmemcpy.h b/libvo/fastmemcpy.h
index bd42d8562b..cff2846bc8 100644
--- a/libvo/fastmemcpy.h
+++ b/libvo/fastmemcpy.h
@@ -1,16 +1,16 @@
 #ifndef __MPLAYER_MEMCPY
 #define __MPLAYER_MEMCPY 1
 
-#ifdef USE_FASTMEMCPY
+#include "../config.h"
 
-#if defined( HAVE_MMX2 ) || defined( HAVE_3DNOW ) || defined( HAVE_MMX )
+#ifdef USE_FASTMEMCPY
+#if defined(HAVE_MMX) || defined(HAVE_MMX2) || defined(HAVE_3DNOW) \
+/*    || defined(HAVE_SSE) || defined(HAVE_SSE2) */
 #include <stddef.h>
 
 extern void * fast_memcpy(void * to, const void * from, size_t len);
 #define memcpy(a,b,c) fast_memcpy(a,b,c)
 
-#endif
-
-#endif
-
+#endif /* HAVE_MMX/MMX2/3DNOW/SSE/SSE2 */
+#endif /* USE_FASTMEMCPY */
 #endif