anchor.diff:  
   
       build =
  -      { tarball ? jobs.tarball {}
  -      , system ? "i686-linux"
  -      }:
  +      { system ? "i686-linux" }:
   
  -      with import nixpkgs {inherit system;};
  +      with import nixpkgs { inherit system; };
   
         releaseTools.nixBuild {
           name = "nix";
           src = tarball;
   
  -        buildInputs = [curl perl bzip2 openssl];
  +        buildInputs = [ curl perl bzip2 openssl ];
   
           configureFlags = ''
             --disable-init-state
  
positive.code: 
    makeRPM = 
      system: diskImageFun: prio:
      { tarball ? jobs.tarball {}
      }:
  
      with import nixpkgs {inherit system;};
  
      releaseTools.rpmBuild rec {
        name = "nix-rpm-${diskImage.name}";
        src = tarball;
        diskImage = diskImageFun vmTools.diskImages;
        memSize = 1024;
        meta = { schedulingPriority = toString prio; };
      };
  
  
  
negative.code:   
    makeDeb =
      system: diskImageFun: prio:
  
      with import nixpkgs { inherit system; };
  
      releaseTools.debBuild {
        name = "nix-deb";
        src = jobs.tarball;
        diskImage = diskImageFun vmTools.diskImages;
        memSize = 1024;
        meta = { schedulingPriority = prio; };
        configureFlags = "--sysconfdir=/etc";
        debRequires = [ "curl" ];
      };
  
  
  