[MacPorts] Migration modified

[Rainer Müller]

On 2013-10-31 16:06, Jeremy Lavergne wrote:
> The example breaks down when you have a package that cannot be
> installed on the new OS, such as llvm-3.0 on mavericks. You would
> have to uninstall all the “bad” packages prior to running upgrade,
> and then do an upgrade —enforce-variants to ensure it doesn’t get
> included again.

Right... If we had the supported platforms in a declarative syntax, we
could include them in the 'obsolete' ports and just advise to uninstall
them. That would require #15712 [1].

Rainer

[1] https://trac.macports.org/ticket/15712