-DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_hwdb*, udev_hwdb_unref);
-DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_event*, udev_event_unref);
-DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_rules*, udev_rules_unref);
-DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_ctrl*, udev_ctrl_unref);