Building clang/cling 3.5 for ROOT on Lion

Mojca Miklavec mojca at
Mon Apr 7 15:13:43 PDT 2014


I would like to ask for advice about how to properly support building
ROOT 6 (which builds clang/cling 3.5 as part of the installation) on

I'm aware of But it's not
clear to me if dependency on clang 3.5 means that one will be unable
to to run ROOT 6 on 10.7 and earlier. Or if we just need to blacklist
certain compilers.

The first response from upstream was:

> ROOT6 requires C++11, which is supported (using libc++) on 10.8
> and 10.9 e.g. with XCode 5.1.
> For 10.7 you can get GCC 4.7 or 4.8 from the usual Mac packagers,
> or build clang with libc++ yourself; either one should work but the
> former might be simpler.


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