Am Sonntag, 23. April 2017, 14:35:48 CEST schrieb Michał Górny:
> Hi,
> 
> I'm thinking of masking old versions of sys-devel/gcc, in particular
> older than the 4.9 branch.
> 

Masking is fine; some time later (maybe in a few months) I'd even suggest 
masking all of gcc-4. After all, unmasking them if you really need them is 
rather easy.

About removing them (what William proposed), I'd keep what we have now. We had 
this discussion already in lots of detail in the past, and convincing points 
were made to keep one of each 4.x ...

-- 
Andreas K. Hüttel
dilfridge@gentoo.org
Gentoo Linux developer (council, perl, libreoffice)