so, what about the library based typedef?

[Trass3r]

So typedef is finally deprecated now and I have to add -d to all of my  
build scripts just to shut dmd up.
As I pointed out months ago and recently again, shouldn't we have a  
library based typedef as a replacement before doing so?

http://d.puremagic.com/issues/show_bug.cgi?id=5467