Re: [Haskell-cafe] Again, version conflicting problem with cabal-install

Glad to hear that. I will checkout the trunk and try. On Fri, Feb 3, 2012 at 6:20 PM, Andres Löh wrote:

Hi.

On Fri, Feb 3, 2012 at 7:44 AM, Ivan Lazar Miljenovic wrote:

...

On 3 February 2012 17:29, Magicloud Magiclouds wrote:

...

Thank you. The document does say it more clearly than me. But still, currently, ghc only gives me one option: cannot be built. How about giving me another one: throw away the version information of D when building A. So when A uses types in D with B and C, it might work. Just the risk is on me now. It is not perfect, but would work sometimes....

But not always.  We'd then have other errors: "why isn't this build working?"

Types can be re-exported, class instances are implicitly imported/exported, etc.

It's a valid complaint, and there's ongoing work to fix some of these issues. In the meantime, the development version of cabal-install, in particular the new modular solver, can deal with a few situations that can't be resolved by older cabal-install versions. I can't promise it will help here. But I'm still interested in feedback.

Cheers,  Andres

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