Error building with LLVM 3.5 on OSX Maverick or Yosemite

[josephjunker]

I get the following error during installation:

node-gyp rebuild

CXX(target) Release/obj.target/llvm/src/llvm.o
In file included from ../src/llvm.cc:1:
In file included from ../src/node-llvm.h:12:
In file included from /usr/local/include/llvm/IR/LLVMContext.h:19:
In file included from /usr/local/include/llvm/Support/CBindingWrapping.h:17:
In file included from /usr/local/include/llvm/Support/Casting.h:19:
/usr/local/include/llvm/Support/type_traits.h:17:10: fatal error: 'type_traits'
file not found

include <type_traits>

     ^

1 error generated.

All I've been able to determine so far is that adding the compiler flags "-std=c++11 -stdlib=libc++" fixes similar issues, but so far I've had no luck.