(warn "Declared GType name '~A' for class '~A' is invalid ('~A' returned 0)"
(gobject-class-g-type-name class) (class-name class)
(gobject-class-g-type-initializer class)))
(warn "Declared GType name '~A' for class '~A' is invalid ('~A' returned 0)"
(gobject-class-g-type-name class) (class-name class)
(gobject-class-g-type-initializer class)))