replaced_by multiple ports?

[Ryan Schmidt]

On Dec 11, 2012, at 14:59, Jeremy Lavergne wrote:

>> I would like to split an existing port (healpix) into two or more new ports (healpix-c, healpix-cxx). Is there a way to accomplish this with replaced_by, or are there any examples of ports for which something similar has happened in the past?
> 
> I believe replaced-by only handles a one-to-one replacement.

Right.

> I'd recommend making healpix a virtual package (no real contents, just one file in to place into a ${prefix}/share/doc/${name}/) that depends on both healpix-c and healpix-cxx. 

Yes, but you'll have to add the "deactivate hack" to the virtual port (or meta port) to prevent activation failures on upgrades.

> You could add a `notes` message indicating healpix no longer does anything: users can set healpix-c[xx] as requested and then uninstall healpix.

Yes, and any ports that depend on healpix should be updated to depend on the new port(s) as appropriate.