Not sure if that's what you were looking for (i.e. a specific feature introduced with cdbs 0.4.38), but you can cook that up on your own.
See how grub2 package does it for an example. -- Robert Millan <GPLv2> I know my rights; I want my phone call! <DRM> What use is a phone call, if you are unable to speak? (as seen on /.) -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]