option('udev-dir', type: 'string', default: '', description: 'udev base directory [default=$prefix/lib/udev]') option('libwacom', type: 'boolean', default: true, description: 'Use libwacom for tablet identification (default=true)') option('debug-gui', type: 'boolean', default: true, description: 'Enable the "debug-gui" feature in the libinput tool [default=true]') option('enable-tests', type: 'boolean', default: true, description: 'Build the tests [default=true]')