anchor.diff:    makeRPM =
       system: diskImageFun: prio:
   
  -    with import nixpkgs { inherit system; };
  +    with import <nixpkgs> { inherit system; };
   
       releaseTools.rpmBuild rec {
         name = "nix-rpm";
  
positive.code:         installFlags = "sysconfdir=$(out)/etc";
  
          doInstallCheck = true;
        };
  
      binaryTarball =
        { system ? "x86_64-linux" }:
  
        with import nixpkgs { inherit system; };
  
        let
          toplevel = build { inherit system; };
          version = toplevel.src.version;
        in
  
  
negative.code:   makeDeb =
      system: diskImageFun: prio:
  
      with import <nixpkgs> { inherit system; };
  
      releaseTools.debBuild {
        name = "nix-deb";
  