From 68f96d0746aaddfae8bb80ab81f62e7b22b813e4 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Mon, 7 Mar 2011 22:04:10 -0800
Subject: [PATCH] The MMX and 3DNow! instructions can't be compiled by 64-bit
 Visual Studio.

---
 include/SDL_cpuinfo.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/SDL_cpuinfo.h b/include/SDL_cpuinfo.h
index 9ac4b9936..54e97b900 100644
--- a/include/SDL_cpuinfo.h
+++ b/include/SDL_cpuinfo.h
@@ -35,8 +35,10 @@
 /* Visual Studio 2005 has a bug where intrin.h conflicts with winnt.h */
 #if defined(_MSC_VER) && (_MSC_VER >= 1500) && !defined(_WIN32_WCE)
 #include <intrin.h>
+#ifndef _WIN64
 #define __MMX__
 #define __3dNOW__
+#endif
 #define __SSE__
 #define __SSE2__
 #elif defined(__MINGW64_VERSION_MAJOR)