2.6.0 features

[Chris Jones]

> On 5 Oct 2019, at 2:37 pm, Ken Cunningham <ken.cunningham.webuse at gmail.com> wrote:
> 
> I have come across several ports where variant c++ standards are needed, like gnu++11 for example, so perhaps setting the std automatically could lead to troubles...

Perhaps base could be updated to do it automatically, but allow ports to override/disable it in cases where it is required. I could imagine for most ports doing it automatically would be fine and probably useful.

> 
> K