option('clapper-player', type: 'boolean', value: true, description: 'Build Clapper player' ) option('clapper-lib', type: 'boolean', value: true, description: 'Build Clapper libs (including API)' ) option('devel-checks', type: 'boolean', value: false, description: 'GStreamer GLib checks and asserts such as API guards (disable for stable releases)' ) option('deprecated-glib-api', type: 'boolean', value: true, description: 'Allow using of deprecated GLib API' )