Hi,
I've been trying to modify cabal-install so that it builds and works
on ghc 6.12 rc1. Made some easy fixes, then came upon this compilation
error:
Building cabal-install-0.7...
[14 of 35] Compiling Distribution.Client.IndexUtils (
Distribution/Client/IndexUtils.hs,
dist/build/cabal/cabal-tmp/Distribution/Client/IndexUtils.o )
Distribution/Client/IndexUtils.hs:111:6:
Couldn't match expected type
`Distribution.InstalledPackageInfo.InstalledPackageInfo'
against inferred type `AvailablePackage'
In the expression:
AvailablePackage
{packageInfoId = pkgid, packageDescription = pkg,
packageSource = RepoTarballPackage repo}
In the first argument of `PackageIndex.fromList', namely
`[AvailablePackage
{packageInfoId = pkgid, packageDescription = pkg,
packageSource = RepoTarballPackage repo} |
(pkgid, pkg) <- pkgs]'
In the second argument of `($)', namely
`PackageIndex.fromList
[AvailablePackage
{packageInfoId = pkgid, packageDescription = pkg,
packageSource = RepoTarballPackage repo} |
(pkgid, pkg) <- pkgs]'
Uh-oh. This looks like a big chunk of work (the package index type is
no longer polymorphic in cabal 1.8.0). Has anyone else worked on
this? Is there some secret branch of cabal-install somewhere that
works on ghc 6.12?
--
Robin
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