SlackBuildsOrg/haskell/haskell-deepseq-generics

This package provides a GHC.Generics-based Control.DeepSeq.Generics
genericRnf function which can be used for providing a rnf
implementation. See the documentation for the genericRnf function in
the Control.DeepSeq.Generics module to get started.

After uninstalling, run this command to unregister the package from
the ghc package database:   ghc-pkg recache