$OpenBSD: patch-tools_clang_lib_Lex_Lexer_cpp,v 1.4 2009/08/09 11:26:03 sthen Exp $
--- tools/clang/lib/Lex/Lexer.cpp.orig	Sat Aug  8 00:35:03 2009
+++ tools/clang/lib/Lex/Lexer.cpp	Sun Aug  9 10:23:50 2009
@@ -1088,6 +1088,7 @@ static bool isEndOfBlockCommentWithEscapedNewLine(cons
   return true;
 }
 
+#undef __SSE2__
 #ifdef __SSE2__
 #include <emmintrin.h>
 #elif __ALTIVEC__
