RFC: Drop PPC support

[Sean Farley]

Bradley Giesbrecht writes:

> On Oct 1, 2014, at 10:58 AM, Sean Farley <sean at macports.org> wrote:
>
>> As discussed in the MPI thread, PPC is very old and is causing quite the
>> development burden. I would be in favor of discussing how much effort we
>> really want to spend supporting them (similar to supporting libstdc++ on
>> Mavericks).
>> 
>> We could tag some known version of the MacPorts svn tree for PPC users
>> and be done with it. This would allow us to concentrate on other issues.
>> 
>> We could also talk about how far of an OS back do we really want to
>> support. Tiger and Leopard are decrepit. We don't even have buildbots
>> for PPC nor OSes below Lion.
>
> There are buildbots for Snow Leopard.
> https://build.macports.org/buildslaves

Whoops, I missed that.