[MacPorts] #34204: avahi upgrade fails

[Joshua Root]

On 2012-5-2 07:00 , Bradley Giesbrecht wrote:
> 
> On May 1, 2012, at 1:48 PM, Marko Käning wrote:
> 
>>> I made the change because MacPorts has a preference to move away from
>>> "no_variant" style and instead setting "default_variants +variant".
> 
> Maybe before removing a variant we should make it a stub variant for some time that errors with a message something like "please replace +no_variant with -variant".
> Similar to what we do with replace_by when we remove a port.

Better to migrate users automatically. See e.g. x11/no_x11 in libsdl and
cairo.

- Josh