anchor.diff:    # /homeless-shelter. Disabled.
     purescript = dontCheck super.purescript;
   
  -  # Broken by GLUT update.
  -  Monadius = markBroken super.Monadius;
  -
  -  # We don't have the groonga package these libraries bind to.
  -  haroonga = markBroken super.haroonga;
  -  haroonga-httpd = markBroken super.haroonga-httpd;
  -
  -  # Build is broken and no contact info available.
  -  hopenpgp-tools = markBroken super.hopenpgp-tools;
  -
  -  # https://github.com/hunt-framework/hunt/issues/99
  -  hunt-server = markBrokenVersion "0.3.0.2" super.hunt-server;
  -
  -  # https://github.com/bjpop/blip/issues/16
  -  blip = markBroken super.blip;
  -
     # https://github.com/tych0/xcffib/issues/37
     xcffib = dontCheck super.xcffib;
   
     # https://github.com/afcowie/locators/issues/1
     locators = dontCheck super.locators;
  -
  -  # https://github.com/scravy/hydrogen-syntax/issues/1
  -  hydrogen-syntax = markBroken super.hydrogen-syntax;
  -  hydrogen-cli = dontDistribute super.hydrogen-cli;
  -
  -  # https://github.com/meteficha/Hipmunk/issues/8
  -  Hipmunk = markBroken super.Hipmunk;
  -  HipmunkPlayground = dontDistribute super.HipmunkPlayground;
  -  click-clack = dontDistribute super.click-clack;
  -
  -  # https://github.com/fumieval/audiovisual/issues/1
  -  audiovisual = markBroken super.audiovisual;
  -  call = dontDistribute super.call;
  -  rhythm-game-tutorial = dontDistribute super.rhythm-game-tutorial;
   
     # https://github.com/haskell/haddock/issues/378
     haddock-library = dontCheck super.haddock-library;
  
positive.code:   # https://github.com/edwinb/EpiVM/issues/14
    epic = addExtraLibraries (addBuildTool super.epic self.happy) [pkgs.boehmgc pkgs.gmp];
  
    # Upstream has no issue tracker.
    dpkg = markBroken super.dpkg;
  
    # https://github.com/ekmett/wl-pprint-terminfo/issues/7
    wl-pprint-terminfo = addExtraLibrary super.wl-pprint-terminfo pkgs.ncurses;
  
    # https://github.com/bos/pcap/issues/5
    pcap = addExtraLibrary super.pcap pkgs.libpcap;
  
    # https://github.com/skogsbaer/hscurses/issues/24
    hscurses = markBroken super.hscurses;
  
    # https://github.com/qnikst/imagemagick/issues/34
    imagemagick = dontCheck super.imagemagick;
  
  
negative.code:   # The package doesn't know about the AL include hierarchy.
    # https://github.com/phaazon/al/issues/1
    al = appendConfigureFlag super.al "--extra-include-dirs=${pkgs.openal}/include/AL";
  
    # https://github.com/froozen/kademlia/issues/2
    kademlia = dontCheck super.kademlia;
  