Orphaned packages

[Victor Sudakov]

Dear Colleagues,

What if a package is installed on a production system, and it
disappears from the repository (e.g. it is built no more because it
has become BROKEN). 

Is there a way to find such orphaned packages installed in the system?

"pkg upgrade" stops noticing them while it could have said something
like "This packages has disappeared from repository."

-- 
Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
AS43859