case os:getenv("SMOKE_TEST") of
    false -> CONFIG;
    [] -> CONFIG;
    _ ->
      C1 = lists:keystore(escript_emu_args, 1, CONFIG,
                      {escript_emu_args, "%%! -escript main smoke_test_escript +K true +P 10000 -env ERL_MAX_PORTS 10000\n"}),
      lists:keystore(escript_name, 1, C1, {escript_name, smoke_test})
end.