packages with orphaned instances only

[Henning Thielemann]

Gábor Lehel schrieb:

> I wonder if it might be feasible to add some infrastructural support
> for this, e.g. so-called adapter packages, which get installed
> automatically when the packages they adapt between are both present?
> (Or, thinking further, perhaps even automatic importation of adapter
> modules at the language level?)

This would be analogous to automatic import of instances at a package level.

However the adapter package might import other heavyweight packages that
someone may not want to have.