{ buildRubyGem, ruby }: buildRubyGem rec { inherit ruby; name = "${gemName}-${version}"; gemName = "bundler"; version = "1.17.1"; source.sha256 = "0jmj67r2677mq8hxkhvlgpbv8gzfgdhxra3x0gf0bywiyypl546c"; dontPatchShebangs = true; postFixup = '' sed -i -e "s/activate_bin_path/bin_path/g" $out/bin/bundle ''; }