linkCxxAbi=""
export NIX_CXXSTDLIB_COMPILE+=" -isystem /nix/store/yd3bi1p0b7wwd0cgjwy77wh549dm5x3d-libc++-4.0.1/include/c++/v1"
export NIX_CXXSTDLIB_LINK=" -stdlib=libc++${linkCxxAbi:+" -lc++abi"}"
