Blacklisting gcc

[Chris Jones]

> On 27 Mar 2018, at 5:52 pm, Ken Cunningham <ken.cunningham.webuse at gmail.com> wrote:
> 
> 
> On 2018-03-27, at 7:43 AM, Benjamin Redelings wrote:
> 
> 
>> I suppose there could be a c++14 portgroup?
> 
> There could be.
> 
> But I would instead propose that MacPorts never puts forward a compiler that can't handle c++14 at this point in time instead.

Agreed, but what about c++17 ? And then the next standard, and so on. This is an issue that isn’t going to go away with just 11, or 14...

> 
> If the system-installed clang is new enough to support c++14, OK. Otherwise default to clang-5.0 instead.
> 
> I see no need to prospect that capabilities of ancient clang versions nobody cares about any more.
> 
> or similar.