I don't believe package configs work in the same way as the normal config files.

You can use something like this in the config file to achieve similar results.

<?php

return array(

    'compress' => (App::environment() == 'production' ? true : false),

);

iWader said:

I don't believe package configs work in the same way as the normal config files.

Yes they does.

Just use artisan config:publish your/package, then if you want to achieve a custom configuration for a specific environment, just copy the folder structure in your config sub folder corresponding to your given environment.

e.g : /config/local/packages/your/package/config.php

Laravel will detect automaticaly and use the one corresponding to the current environment