Changing default cxx_stdlib to libc++

[db]

On 12 Mar 2018, at 21:56, Ryan Schmidt <ryandesign at macports.org> wrote:
> I'm not aware of any plan to notify users of the cxx_stdlib change, other than the same way that users are notified of any other port update being available: by the user running "sudo port selfupdate" and then examining the output of "port outdated".

I was considering only subscribing to macports-announce. Would this change make it in there?

>> Besides rebuilding from source from time to time, I only do port sync.
> You'll of course have to run "sudo port selfupdate" (or run the installer downloaded from our web site), not just "sudo port sync", to receive the new version of MacPorts.

I compile both base and ports from source, so there's that.