[PATCH] Let the default compiler be configurable

[Ryan Schmidt]

On Jun 9, 2011, at 22:05, Jeremy Lavergne wrote:

>> We'll probably still get people who migrate their old macports.conf to a new machine, and cause new problems due to using an older compiler. Hopefully most users will notice.
> 
> Isn't this why we comment out the configuration if using default values?

That's a good point, we do that now, so this might not be a problem. We didn't used to do that, and got several bug reports from, for example, people ending up building ppc i386 universal binaries on Snow Leopard.