Bugs item #2939531, was opened at 2010-01-25 16:42
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: yairchu ()
Assigned to: Nobody/Anonymous (nobody)
Summary: cabal install wxcore fails / Setup.hs type error
Initial Comment:
when doing cabal install I get the errors below:
Setup.hs:15:57:
Couldn't match expected type `GenericPackageDescription'
against inferred type `Either
GenericPackageDescription
PackageDescription'
Expected type: (GenericPackageDescription, HookedBuildInfo)
Inferred type: (Either
GenericPackageDescription PackageDescription,
HookedBuildInfo)
In the `confHook' field of a record
In the first argument of `defaultMainWithHooks', namely
`simpleUserHooks {confHook = myConfHook}'
Setup.hs:51:37:
Couldn't match expected type `GenericPackageDescription'
against inferred type `Either
GenericPackageDescription
PackageDescription'
In the expression: pkg0
In the second argument of `confHook', namely `(pkg0, pbi)'
In a stmt of a 'do' expression:
lbi <- confHook simpleUserHooks (pkg0, pbi) flags
the following patch seemed to solve it:
15c15,18
< main = defaultMainWithHooks simpleUserHooks { confHook = myConfHook }
---
> main =
> defaultMainWithHooks simpleUserHooks { confHook = f }
> where
> f (x, y) = myConfHook (Left x, y)
51c54,55
< lbi <- confHook simpleUserHooks (pkg0, pbi) flags
---
> let Left t = pkg0
> lbi <- confHook simpleUserHooks (t, pbi) flags
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