anchor.diff:  
     dhewm3 = callPackage ../games/dhewm3 {};
   
  -  digikam5 = kde5.callPackage ../applications/graphics/digikam/5.nix {};
  +  digikam5 = kde5.callPackage ../applications/graphics/digikam/5.nix {
  +    boost = boost160;
  +  };
   
     drumkv1 = callPackage ../applications/audio/drumkv1 { };
   
  
positive.code: 
    tuxguitar = callPackage ../applications/editors/music/tuxguitar { };
  
    twister = callPackage ../applications/networking/p2p/twister { };
  
    twmn = qt5.callPackage ../applications/misc/twmn { };
  
  
negative.code: 
    mongodb = callPackage ../servers/nosql/mongodb {
      sasl = cyrus_sasl;
      boost = boost160;
      inherit (darwin.apple_sdk.frameworks) Security;
    };
  
  