{ buildRubyGem, makeWrapper, ruby, coreutils }:

buildRubyGem rec {
  inherit ruby;
  name = "${gemName}-${version}";
  gemName = "bundler";
  version = "1.12.5";
  sha256 = "1q84xiwm9j771lpmiply0ls9l2bpvl5axn3jblxjvrldh8di2pkc";
  dontPatchShebangs = true;

  postFixup = ''
    sed -i -e "s/activate_bin_path/bin_path/g" $out/bin/bundle
  '';
}