$OpenBSD: patch-tools_clang_lib_Lex_Lexer_cpp,v 1.6 2011/01/13 00:15:50 jeremy Exp $
--- tools/clang/lib/Lex/Lexer.cpp.orig	Tue Aug 31 09:42:00 2010
+++ tools/clang/lib/Lex/Lexer.cpp	Thu Jan  6 11:26:07 2011
@@ -1334,6 +1334,7 @@ static bool isEndOfBlockCommentWithEscapedNewLine(cons
   return true;
 }
 
+#undef __SSE2__
 #ifdef __SSE2__
 #include <emmintrin.h>
 #elif __ALTIVEC__
