option('enable-colord', type: 'combo', choices : ['yes', 'no', 'auto'], value : 'auto', description : 'Build colord support code') option('enable-x11-backend', type: 'boolean', value: 'true', description : 'Enable the X11 gdk backend') option('enable-wayland-backend', type: 'boolean', value: 'true', description : 'Enable the wayland gdk backend') option('enable-broadway-backend', type: 'boolean', value: 'false', description : 'Enable the broadway (HTML5) gdk backend') option('enable-mir-backend', type: 'boolean', value: 'false', description : 'Enable the Mir gdk backend (UNTESTED, NEEDS WORK)') option('enable-vulkan', type: 'combo', choices : ['yes', 'no', 'auto'], value : 'auto', description : 'Enable support for the Vulkan graphics API') option('enable-test-print-backend', type: 'combo', choices : ['yes', 'no', 'auto'], value : 'no', description : 'Enable the test print backend') option('enable-cups-print-backend', type: 'combo', choices : ['yes', 'no', 'auto'], value : 'auto', description : 'Enable the CUPS print backend') option('enable-papi-print-backend', type: 'combo', choices : ['yes', 'no', 'auto'], value : 'auto', description : 'Enable the papi print backend') option('enable-cloudprint-print-backend', type: 'combo', choices : ['yes', 'no', 'auto'], value : 'auto', description : 'Enable the cloudprint print backend')