anchor.diff:            packages.ghc8107BinaryMinimal
           else
             packages.ghc8107Binary;
  -      inherit sphinx;
  +      inherit (buildPackages.python3Packages) sphinx;
         # Need to use apple's patched xattr until
         # https://github.com/xattr/xattr/issues/44 and
         # https://github.com/xattr/xattr/issues/55 are solved.
  
positive.code:   # Use this rather than `rec { ... }` below for sake of overlays.
    inherit (pkgs.haskell) compiler packages;
  
    sphinx = buildPackages.sphinx_offline;
  
  in {
    lib = haskellLibUncomposable;
  
  
negative.code:           packages.ghc8102Binary
          else
            packages.ghc865Binary;
        inherit (buildPackages.python3Packages) sphinx;
        buildTargetLlvmPackages = pkgsBuildTarget.llvmPackages_7;
        llvmPackages = pkgs.llvmPackages_7;
      };
  