Ticket #393 (closed enhancement: fixed)
Allow --preference= flags for soft constraints
|Reported by:||duncan||Owned by:|
|Cc:||Difficulty:||easy (<4 hours)|
cabal install now uses soft preferences from a preferred-versions file in the hackage index. It would sometimes be useful to also be able to specify these on the command line.
It shouldn't be too hard since the solver already accepts such soft-constraints.