Timeout On install with drush si

the drual_set_time_limit will override limits so each module that runs it appears to reset it. So there does not appear to be a way to tell it that I want to not have a limit.

function drupal_set_time_limit($time_limit) {
  if (function_exists('set_time_limit')) {
    @set_time_limit($time_limit);
  }
}

I think I want to patch so that the largest limit allways wins.

first patch