anchor.diff:    # A GMP fork
     mpir = callPackage ../development/libraries/mpir {};
   
  -  gns3Packages = callPackage ../applications/networking/gns3 { };
  +  gns3Packages = dontRecurseIntoAttrs (callPackage ../applications/networking/gns3 { });
     gns3-gui = gns3Packages.guiStable;
     gns3-server = gns3Packages.serverStable;
   
  
positive.code: 
    haskell = callPackage ./haskell-packages.nix { };
  
    haskellPackages = haskell.packages.ghc863.override {
      overrides = config.haskellPackageOverrides or haskell.packageOverrides;
    };
  
    inherit (haskellPackages) ghc;
  
  
negative.code:     openssl = openssl_1_1;
    };
  
    nodePackages_10_x = dontRecurseIntoAttrs (callPackage ../development/node-packages/default-v10.nix {
      nodejs = pkgs.nodejs-10_x;
    });
  
    nodePackages_8_x = dontRecurseIntoAttrs (callPackage ../development/node-packages/default-v8.nix {
      nodejs = pkgs.nodejs-8_x;
    });
  
    nodePackages_6_x = dontRecurseIntoAttrs (callPackage ../development/node-packages/default-v6.nix {
      nodejs = pkgs.nodejs-6_x;
    });
  
    nodePackages = nodePackages_10_x;
  
  