anchor.diff:            pname = "diagrams-lib";
             version = "1.4.1.2";
             sha256 = "4b6e8805decaef85d355d620311595b16fb702df3885060db19bc9b425652670";
  -          revision = "3";
  -          editedCabalFile = "14ni87kwmjhbphcihiivvz0nxga355263q36wvbyvvjmxvbdj98n";
  +          revision = "4";
  +          editedCabalFile = "0wlb4ng803rhx82msl49b39im4cw8naik0pcyyybpphyqbxxs6dd";
             libraryHaskellDepends = [
               active
               adjunctions
  
positive.code:           pname = "Cabal";
            version = "1.24.2.0";
            sha256 = "b7d0eb8e3503fbca460c0a6ca5c88352cecfe1b69e0bbc79827872134ed86340";
            revision = "1";
            editedCabalFile = "0jw809psa2ms9sy1mnirmbj9h7rs76wbmf24zgjqvhp4wq919z3m";
            libraryHaskellDepends = [
              array
              base
  
negative.code:       hscolour = callPackage ({ base, containers, mkDerivation, stdenv }:
        mkDerivation {
            pname = "hscolour";
            version = "1.24.2";
            sha256 = "55fb86bafdcad9613c25910b1cbca4b071c1ddc6365538c3b3d4e350cb30cf22";
            isLibrary = true;
            isExecutable = true;
            enableSeparateDataOutput = true;
  