{ pkgs }: with import ./lib.nix; self: super: { # Disable GHC 7.9.x core libraries. array = null; base = null; binary = null; bin-package-db = null; bytestring = null; Cabal = null; containers = null; deepseq = null; directory = null; filepath = null; ghc-prim = null; haskeline = null; hoopl = null; hpc = null; integer-gmp = null; pretty = null; process = null; rts = null; template-haskell = null; terminfo = null; time = null; transformers = null; unix = null; xhtml = null; # haddock: internal error: expectJust getPackageDetails mkDerivation = drv: super.mkDerivation (drv // { noHaddock = true; }); # Setup: At least the following dependencies are missing: base <4.8 hspec-expectations = overrideCabal super.hspec-expectations (drv: { patchPhase = "sed -i -e 's|base < 4.8|base|' hspec-expectations.cabal"; }); }