anchor.diff:    eggDerivation = callPackage ../development/compilers/chicken/eggDerivation.nix { };
   
     chicken = callPackage ../development/compilers/chicken {
  -    bootstrap-chicken = chicken.override { bootstrap-chicken = null; }; 
  +    bootstrap-chicken = chicken.override { bootstrap-chicken = null; };
     };
   
     egg2nix = callPackage ../development/tools/egg2nix {
  
positive.code:   freetds = callPackage ../development/libraries/freetds { };
  
    frescobaldi = callPackage ../misc/frescobaldi {};
    
    ftgl = callPackage ../development/libraries/ftgl { };
  
    ftgl212 = callPackage ../development/libraries/ftgl/2.1.2.nix { };
  
negative.code:   pdfread = callPackage ../tools/graphics/pdfread { };
  
    briss = callPackage ../tools/graphics/briss { };
  
    brickd = callPackage ../servers/brickd {
      libusb = libusb1;
    };
  
    bully = callPackage ../tools/networking/bully { };
  