#174: cabal-install tries to upgrade the base package ----------------------------+----------------------------------------------- Reporter: duncan | Owner: Type: defect | Status: new Priority: normal | Milestone: Component: cabal-install | Version: 1.2.2.0 Severity: normal | Resolution: Keywords: | Difficulty: normal Ghcversion: 6.6 | Platform: Linux ----------------------------+----------------------------------------------- Comment (by guest): There are a number of issues here: * base should not be in HackageDB, since it is impossible to upgrade it. * The cgi package has been updated to use configurations to work with both base-2 and base-3, but fastcgi hasn't (it is updated in darcs, I just haven't gotten around to uploading it). * cabal-install picks the first working configuration. This has the result that fastcgi which dependes on base >= 2.0 is configured to use the ''installed'' base-2.1.1, and cgi which can use either base version is configured to use the ''available'' base-3.0.0. If base was not in HackageDB, cgi would be configured correctly. There is a bug here, but it is not that configurations are flattened incorrectly. Rather, the problem is that cabal-install does not backtrack in the dependency resolution if it encounters an uninstallable package. -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/174#comment:4 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects