anchor.diff:    less = callPackage ../tools/misc/less { };
   
     lf = callPackage ../tools/misc/lf {};
  -  
  +
     lhasa = callPackage ../tools/compression/lhasa {};
   
     libcpuid = callPackage ../tools/misc/libcpuid { };
  
positive.code:     libtool = darwin.cctools;
    };
  
    nodejs-5_x = callPackage ../development/web/nodejs/v5.nix {
      libtool = darwin.cctools;
    };
  
    nodejs-6_x = callPackage ../development/web/nodejs/v6.nix {
      libtool = darwin.cctools;
    };
  
negative.code: 
    nodePackages_6_x = callPackage ../development/node-packages/default-v6.nix {
      nodejs = pkgs.nodejs-6_x;
    };
  
    nodePackages_4_x = callPackage ../development/node-packages/default-v4.nix {
  