CI system for PR builds

[db]

On 12 Apr 2018, at 18:52, Ryan Schmidt <ryandesign at macports.org> wrote:
> 1. MacPorts does not have a method of declaring that a port does not build on a version of macOS. Such a feature is being discussed:
> https://trac.macports.org/ticket/15712
> In the absence of this feature, we write pre-fetch blocks that manually check the OS version and print an error.

Opened 10 years ago. Fat chance, I guess.

> 3. There is no plan to have any automated process add such blocks.

Precisely that I wanted to know. I'd like the powers that be to consider this — delivering portfiles that won't build (in certain platforms) doesn't make much sense.