Building clang/cling 3.5 for ROOT on Lion

[Chris Jones]

> I didn't say that libc++ doesn't work – I didn't try that at all (I'm
> not even sure I know how to do it; maybe I could create a new macports
> installation with instructions posted by Jeremy a while ago). I just
> said that using clang-3.4 doesn't help as that doesn't support all
> c++11 features needed by cling.

by using clang34 I believe you are implicitly using libc++ anyway...

Chris