LLVM,clang with i686-w64-mingw32

I'm built llvm 3.5,clang 3.5 under windows with gcc 4.9
<MinGW-w64 - for 32 and 64 bit Windows - Browse Files at SourceForge.net;
Getting error when trying to compile simple c++ file:

"fatal error: 'bits/c++config.h' file not found"

What's wrong with my InitHeaderSearch.cpp <http://pastebin.com/9yYD2Ua0&gt; ?

You’re missing this include:


this may be removed


There is no need to include every directory twice outside the #ifdef and inside.

Also, we’re trying to create a MinGW toolchain, please review http://reviews.llvm.org/D3420