linkCxxAbi=""
export NIX_CXXSTDLIB_COMPILE+=" -isystem /nix/store/g5avn9k0sdn51rdwji3maikkl7a4sqaf-libc++-5.0.2/include/c++/v1"
export NIX_CXXSTDLIB_LINK=" -stdlib=libc++${linkCxxAbi:+" -lc++abi"}"
