2017-04-21 18:21 GMT+02:00 Jörg Schaible <joerg.schaible@gmx.de>:
Walter Dnes wrote:

> On Thu, Apr 20, 2017 at 05:52:20PM -0500, Matthias Maier wrote
>
>> (A-C) gcc-5.4.0 and gcc-4.9.4 are slotted separately. What is going to
>> be the default is entirely up to you.
>
>   Good to hear.  Like I said, on a fresh install I'd go with the current
> version (5.4).  But for now, I'll wait for other people to experience
> problems.  If nothing major, I might switch at a convenient time.
>


You just have to be careful with

 emerge -c

This will remove the old "unused" gcc silently :-/

no fear about that issue a:
emerge --select --noreplace sys-devel/gcc:4.9.4
to keep your wanted version of gcc in the world file 
(--select is usually already the default)


Cheers,
Jörg