option('packaging_backend', type : 'array', choices : ['alpm', 'apt', 'dnf', 'dummy', 'entropy', 'pisi', 'poldek', 'portage', 'slack', 'zypp', 'nix', 'freebsd'], value : ['dummy'], description : 'The name of the backend to use') option('dnf_vendor', type : 'combo', choices : ['fedora', 'mageia', 'openmandriva', 'rosa', 'opensuse'], value : 'fedora', description : 'Vendor configuration when using the dnf backend') option('systemd', type : 'boolean', value : true, description : 'Use systemd and logind') option('systemdsystemunitdir', type : 'string', value : '', description : 'Directory for systemd service files') option('systemduserunitdir', type : 'string', value : '', description : 'Directory for systemd user service files') option('offline_update', type : 'boolean', value : true, description : 'Use systemd offline update') option('elogind', type : 'boolean', value : false, description : 'Use elogind instead of systemd-login') option('gobject_introspection', type : 'boolean', value : true, description : 'Build GObject Introspection data') option('man_pages', type : 'boolean', value : true, description : 'Generate man pages') option('gtk_doc', type : 'boolean', value : false, description : 'Generate API reference') option('bash_completion', type : 'boolean', value : true, description : 'Bash completion') option('bash_command_not_found', type : 'boolean', value : true, description : 'Build Bash command-not-found functionality') option('packagekit_user', type : 'string', value : 'root', description : 'User for running the PackageKit daemon') option('local_checkout', type : 'boolean', value : false, description : 'Allow running in local checkout') option('gstreamer_plugin', type : 'boolean', value : true, description : 'Build gstreamer plugin functionality') option('gtk_module', type : 'boolean', value : true, description : 'Build GTK+-3 module functionality') option('cron', type : 'boolean', value : true, description : 'Build cron background functionality') option('dbus_sys', type : 'string', value : '', description : 'D-BUS system.d directory') option('dbus_services', type : 'string', value : '', description : 'D-BUS system-services directory') option('python_backend', type : 'boolean', value : true, description : 'Provide a python backend') option('pythonpackagedir', type : 'string', value : '', description : 'Location for python modules') option('daemon_tests', type : 'boolean', value : true, description : 'Test the daemon using the dummy backend')