linkCxxAbi=""
export NIX_CXXSTDLIB_COMPILE+=" -isystem /nix/store/ggbd4h41rnvgsvjyyqd0y73jnmqzvp8r-libc++-5.0.1/include/c++/v1"
export NIX_CXXSTDLIB_LINK=" -stdlib=libc++${linkCxxAbi:+" -lc++abi"}"
