Remove gcc, gcc-c++ and make from minimal build root

[Zbigniew Jędrzejewski-Szmek]

On Thu, Jan 15, 2015 at 11:13:17PM +0100, Nicolas Chauvet wrote:
> Another case about the default buildroot is compiler version, one could
> rely on a newer gcc (such as with a gcc5 package) and rebuild any packages
> with this new buildroot environment without tweaking any sources packages.
But you need to override packages which are explicitly BuildRequired
by source packages too. So a generic mechanism for overrides is needed
anyway, and can be used for the compiler too.

Zbyszek