option('deprecated', type: 'boolean', value: false, description: 'Warn about deprecated usages')
option('keyring', type: 'feature', value: 'auto', description: 'Enable the use of gnome-keyring')
option('applets', type: 'feature', value: 'enabled', description: 'Build the extra power applets')
option('with-dbus-services', type: 'string', description: 'where D-BUS services directory is')