anchor.diff:    enableParallelBuilding = true;
   
     installFlags = [
  -    "sysconfdir=\${out}/etc"
  +    "sysconfdir=${placeholder "out"}/etc"
       "localstatedir=\${TMPDIR}"
     ];
   
  
positive.code: 
  stdenv.mkDerivation rec {
    pname = "packagekit";
    version = "1.1.12";
  
    outputs = [ "out" "dev" ];
  
  
negative.code:     "--localstatedir=/var"
      "--sysconfdir=/etc"
      "--with-dbus-sys=${placeholder "out"}/share/dbus-1/system.d"
      "--with-systemdsystemunitdir=${placeholder "out"}/lib/systemd/system"
      "--with-systemduserunitdir=${placeholder "out"}/lib/systemd/user"
    ]
    ++ lib.optional enableNixBackend "--enable-nix"
    ++ lib.optional (!enableBashCompletion) "--disable-bash-completion"
  