Jacob Carlborg:
I just read the slides of a talk from that latest LLVM Developers' Meeting. It's a talk about modules by Doug Gregor from Apple. It seems that they already have started to implement this new feature in Clang.
It's from the conference I have recently linked two slide packs here. The slides you refer are:
http://llvm.org/devmtg/2012-11/Gregor-Modules.pdf Bye, bearophile
