#393: Allow --preference= flags for soft constraints ---------------------------------+------------------------------------------ Reporter: duncan | Owner: Type: enhancement | Status: closed Priority: normal | Milestone: cabal-install-0.6 Component: cabal-install tool | Version: 1.2.3.0 Severity: normal | Resolution: fixed Keywords: | Difficulty: easy (<4 hours) Ghcversion: 6.8.3 | Platform: ---------------------------------+------------------------------------------ Changes (by duncan): * status: new => closed * resolution: => fixed Comment: {{{ Thu Dec 18 20:49:17 GMT 2008 Duncan Coutts * Generalise the way preferences are specified to the resolver We still provide a default global policy, but now we give a list of per-package preferences which can be on the version or installed state. Later preferences override earlier ones. Thu Dec 18 21:38:49 GMT 2008 Duncan Coutts * Add a install/upgrade --preference='foo < 2' flag This behaves just like the preferred-versions file in the hackage index but it can be specified on the command line or in a config file. }}} -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/393#comment:1 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects