Alan McKinnon <alan.mckinnon@gmail.com> writes:

> You read the message, run @preserved-rebuild and x now links to the new y
> library. When everything in @preserved-rebuild has been rebuilt, portage knows
> that now nothing links to the old y library, and removes it.

Alan, I haven't followed the introduction of @preserved-rebuild, but
you comments make sound like something that happens as emerge is
running.

Or is it use like its predecessor and ran after a large merge or update?