anchor.diff:    passthru.interfaceVersion = 2;
   
     meta = with stdenv.lib; {
  -    homepage = http://www.freedesktop.org/wiki/Software/systemd;
  +    homepage = "https://www.freedesktop.org/wiki/Software/systemd/";
       description = "A system and service manager for Linux";
       license = licenses.lgpl21Plus;
       platforms = platforms.linux;
  
positive.code:   src = fetchFromGitHub {
      owner = "nixos";
      repo = "systemd";
      rev = "d8853d39a28b9884e0acd3ae5732a1e7caaf08af";
      sha256 = "1wqm51i2czbbb3nara11mnxzqng4na1l8fvz7qnbxcrjsqm7hz18";
    };
  
    outputs = [ "out" "lib" "man" "dev" ];
  
negative.code:   bzip2 = null;
  };
  in stdenv.mkDerivation {
    version = "243.7";
    pname = "systemd";
  
    # When updating, use https://github.com/systemd/systemd-stable tree, not the development one!
  