--- ./Source/JavaScriptCore/wtf/Platform.h.orig	2012-07-18 02:18:13.043377378 +0000
+++ ./Source/JavaScriptCore/wtf/Platform.h	2012-07-18 02:19:08.089689204 +0000
@@ -893,7 +893,7 @@
 #endif
 
 #if !defined(WTF_USE_JSVALUE64) && !defined(WTF_USE_JSVALUE32_64)
-#if (CPU(X86_64) && (OS(UNIX) || OS(WINDOWS))) \
+#if (CPU(X86_64) && defined(__LP64__) && (OS(UNIX) || OS(WINDOWS))) \
     || (CPU(IA64) && !CPU(IA64_32)) \
     || CPU(ALPHA) \
     || CPU(SPARC64) \