protected function _loadConfig($file) {
        $suffix = pathinfo($file, PATHINFO_EXTENSION);
        $suffix = ($suffix === 'dist') ?
                    pathinfo(basename($file, ".$suffix"), PATHINFO_EXTENSION) : $suffix;
        if ($suffix == 'ini') {
            $config = Garp_Config_Ini::getCached($file, $this->getEnvironment())->toArray();
        } else {
            $config = parent::_loadConfig($file);
        }
        return $config;
    }