GCC withdraw

[Slawa Olhovchenkov]

On Fri, Aug 30, 2013 at 04:11:08PM +0100, David Chisnall wrote:

> Anyway, Ian has reminded me that I'm getting stuck in sidetracks, so here's an executive summary of what I'm ACTUALLY proposing:
> 
> - On platforms where clang is cc, don't build libstdc++, make libc++ the default.  Provide libstdc++ from base as a 9-compat package.
> 
> - On platforms where clang is cc, don't build gcc by default (I've already agreed not to commit this part, since it seems very controversial, although I'd like to better understand why it is so)

And remember about breaking firewire+clang