anchor.diff:  
     # Has a dependency on outdated versions of directory.
     cautious-file = doJailbreak (dontCheck super.cautious-file);
  -
  -  # https://github.com/diagrams/diagrams-solve/issues/4
  -  diagrams-solve = dontCheck super.diagrams-solve;
   
     # test suite does not compile with recent versions of QuickCheck
     integer-logarithms = dontCheck (super.integer-logarithms);
  
positive.code:   # https://github.com/diagrams/diagrams-core/issues/112
    # https://github.com/diagrams/diagrams-cairo/issues/77
    # https://github.com/diagrams/diagrams-rasterific/issues/63
    active = doJailbreak super.active;
    statestack = doJailbreak super.statestack;
    force-layout = doJailbreak super.force-layout;
  
negative.code:     passthru.updateScript = ../../../maintainers/scripts/haskell/update-cabal2nix-unstable.sh;
    };
  
    # Too strict version bounds on base
    # https://github.com/gibiansky/IHaskell/issues/1217
    ihaskell-display = doJailbreak super.ihaskell-display;
  