diff -up clang/lib/Frontend/InitPreprocessor.cpp.jx clang/lib/Frontend/InitPreprocessor.cpp
--- clang/lib/Frontend/InitPreprocessor.cpp.jx	2014-07-17 16:12:32.000000000 -0400
+++ clang/lib/Frontend/InitPreprocessor.cpp	2014-08-25 13:16:11.273215190 -0400
@@ -464,8 +464,8 @@ static void InitializePredefinedMacros(c
   if (!LangOpts.MSVCCompat) {
     // Currently claim to be compatible with GCC 4.2.1-5621, but only if we're
     // not compiling for MSVC compatibility
-    Builder.defineMacro("__GNUC_MINOR__", "2");
-    Builder.defineMacro("__GNUC_PATCHLEVEL__", "1");
+    Builder.defineMacro("__GNUC_MINOR__", "3");
+    Builder.defineMacro("__GNUC_PATCHLEVEL__", "0");
     Builder.defineMacro("__GNUC__", "4");
     Builder.defineMacro("__GXX_ABI_VERSION", "1002");
   }