This allows blivet to be used outside of NixOS and with a different udev SO major number. Particularily, this is needed for the NixOps Hetzner backend which is coming soon :-) Signed-off-by: aszlig <aszlig@redmoonstudios.org>
This is in preparation for adding overridable function attributes. Signed-off-by: aszlig <aszlig@redmoonstudios.org>