[Haskell-cafe] cabal doens't forget old dependencies
Albert Y. C. Lai
trebla at vex.net
Wed Jun 27 18:07:43 CEST 2012
On 12-06-27 11:29 AM, Sjoerd Visscher wrote:
> I tried to install reactive-banana. This failed due to a dependency conflict, and then I noticed there was a newer version of reactive-banana. So I did cabal update, and tried to install again. But whatever I do, cabal keeps trying to install fclabels, but fclabels is no longer a dependency of reactive-banana-0.6.0.0! How can I let cabal forget this dependency?
extensions: TypeFamilies, GADTs, MultiParamTypeClasses,
build-depends: QuickCheck >= 1.2 && < 2.5,
fclabels == 1.1.*,
unordered-containers >= 0.2.1.0 && < 0.3,
hashable == 1.1.*
Recall that the semantics of "if flag" is like Prolog not Pascal: if the
packages under build-depends could be installed, then UseExtensions is
set to true. Unless you manually override.
More information about the Haskell-Cafe