Re: Cabal constraint solver

On Sunday 03 October 2010 02:10:11, Felipe Lessa wrote:

On Sat, Oct 2, 2010 at 8:29 PM, Daniel Fischer wrote:

...

Yes, cabal looks at the package-index to find out the required dependencies, it doesn't know where you have local source files.

Actually, this is cabal-install. If you 'cabal unpack' then 'runhaskell Setup.hs configure' and 'runhaskell Setup.hs build', maybe it works =).

Worked for me with cabal (as in, the executable provided by cabal-install). $ cabal unpack package-with-bad-constraints $ cd package-with-bad-constraints -- change constraints in package-with-bad-constraints.cabal $ cabal install $ cabal install package-which-depends-on-previous If I changed the version, it worked (unless I overlooked a package with bad constraints), if not, it tried to reinstall (and failed of course).

But the suggestion about increasing the version number is good anyways.

Cheers! =)