... including for packages that we cannot use (yet)
This is for several purposes:
(from #30371)
Depends on #29630
CC: @tobiasdiez @slel @dimpase
Component: build: configure
Author: Tobias Diez
Branch/Commit: cb0fc85
Reviewer: Matthias Koeppe
Issue created by migration from https://trac.sagemath.org/ticket/30859