option('with-theme-dir', type : 'string', value : '/usr/share/lightdm-webkit/themes', description : 'Directory to use for greeter themes') option('with-config-dir', type : 'string', value : '/etc/lightdm/', description : 'LightDM configuration directory') option('with-desktop-dir', type : 'string', value : '/usr/share/xgreeters/', description : 'LightDM greeters directory')