#342: Allow automatic resolving of conditionals on more than just build-depends ----------------------------+----------------------------------------------- Reporter: duncan | Owner: Type: enhancement | Status: new Priority: normal | Milestone: Component: Cabal library | Version: HEAD Severity: normal | Resolution: Keywords: | Difficulty: hard (< 1 day) Ghcversion: 6.8.2 | Platform: ----------------------------+----------------------------------------------- Comment (by nominolo): From a discussion on `#ghc` we think the following needs to be done: - `resolveWithFlags` is, in principle, agnostic to the kind of dependencies. It works basically as follows: 1. pick a flag assignment 2. determine all dependencies 3. combine duplicate dependencies 4. call the dependency checking function to find out if the dependencies can be satisfied - ATM, step 3 above is too specific to package dependencies. We should generalise the `DependencyMap` datastructure to work for other kinds of dependencies. The semantics should still be that multiple dependencies on the same package/framework/etc. should be combined into one that satisfies both. The best place to implement this probably is inside a `Monoid` instance for a set of dependencies. -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/342#comment:3 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects