option('cairo', type: 'boolean', value : false, description: 'Use cairo for tests' ) option('doctool', type: 'boolean', value : false, description: 'Install g-ir-doc-tool and run related tests' ) option('glib_src_dir', type: 'string', description: 'Source directory for glib - needed to add docs to gir' ) option('gtk_doc', type: 'boolean', value: false, description: 'Build and install documentation' ) option('cairo_libname', type: 'string', description: 'Custom name for the cairo-gobject library name' ) option('python', type: 'string', value: 'python3', description: 'Path or name of the Python interpreter to build for' ) option('gir_dir_prefix', type: 'string', description: 'Intermediate prefix for gir installation under ${prefix}' )