anchor.diff:    # Fixing things that are marked broken in 20.09:
     constrained-dynamic = dontCheck (self.callHackage "constrained-dynamic" "0.1.0.0" {});
   
  -  # Fixing things that are marked broken in 19.09:
  -  brittany = dontCheck (self.callHackage "brittany" "0.12.0.0" {});
  -  witherable = self.callHackage "witherable" "0.3.1" {};
  -  time-compat = dontCheck super.time-compat;
  -  bimap = self.callHackage "bimap" "0.3.3" {};
  -
     # Overrides for gi-* family of libraries. See addGIDeps, above.
     haskell-gi-base = addGIDeps (super.haskell-gi-base) [nixpkgs.glib] [];
     gi-glib = addGIDeps (super.gi-glib) [] [];
  
positive.code:   gi-soup = addGIDeps (super.gi-soup) [nixpkgs.gdk_pixbuf] [nixpkgs.libsoup];
    gi-gtk = addGIDeps (super.gi-gtk) [nixpkgs.gdk_pixbuf nixpkgs.gtk3] [nixpkgs.gtk3 nixpkgs.atk nixpkgs.pango];
    gi-webkit2 = addGIDeps (super.gi-webkit2) [] [nixpkgs.webkitgtk];
  
    # Required by butcher
    deque = self.callHackage "deque" "0.4.2.3" {};
    strict-list = self.callHackage "strict-list" "0.1.4" {};
  
    # These take over an hour to run, each
    cryptonite = dontCheck super.cryptonite;
  
negative.code:   algebraic-graphs = self.callHackage "algebraic-graphs" "0.5" {};
    nix-derivation = self.callHackage "nix-derivation" "1.1.1" {};
    data-fix = self.callHackage "data-fix" "0.3.0" {};
    neat-interpolation = self.callHackage "neat-interpolation" "0.4" {};
    prettyprinter = self.callHackage "prettyprinter" "1.7.0" {};
  
  }
  