Bug#902220: Needs porting to LLVM 6.0.1

[Reinhard Tartler]

Control: retitle -1 Needs porting to LLVM 6.0.1

Well, I just checked, even the latest trunk does not support LLVM 6.0.1. 
Or rather, it builds (with some minor, obvious modifications), but 
doesn't work. I haven't tested LLVM 6.0.0, it may or may not work.

This needs to be looked into more.

-rt