linkCxxAbi=""
export NIX_CXXSTDLIB_COMPILE+=" -isystem /nix/store/r54v6jdc53rb5z1hp43h7k8ahmv2rpdb-libc++-4.0.1/include/c++/v1"
export NIX_CXXSTDLIB_LINK=" -stdlib=libc++${linkCxxAbi:+" -lc++abi"}"
