Ludovic Courtès <ludo@gnu.org> skribis:

> There’s a catch here: OUTPUT should be taken into account.
>
> Also it’s better to use eq?-ness but… I realized
> ‘inferior-package-inputs’ & co. do not preserve eq?-ness.

I think I went overboard here: given that <inferior-package> is a simple
flat record type, using ‘equal?’/‘hash-ref’ is reasonable and that way
we avoid the troubles of building an ID-to-package table.  All in all
it’s slightly more efficient.

WDYT?

Ludo’.