anchor.diff:  #  shhopt = callPackage ../development/libraries/shhopt { };
   #
   #  silgraphite = callPackage ../development/libraries/silgraphite {};
  -#  graphite2 = callPackage ../development/libraries/silgraphite/graphite2.nix {};
  +  graphite2 = callPackage ../development/libraries/silgraphite/graphite2.nix {};
   #
   #  simgear = callPackage ../development/libraries/simgear { };
   #
  
positive.code: #
  #  scsh = callPackage ../development/interpreters/scsh { };
  #
  #  inherit (callPackages ../development/interpreters/spidermonkey { })
  #    spidermonkey_17
  #    spidermonkey_24
  #    spidermonkey_38;
  #  spidermonkey = spidermonkey_38;
  #
  #  tcl = tcl-8_6;
  #  tcl-8_6 = callPackage ../development/interpreters/tcl/8.6.nix { };
  
negative.code: #    inherit (pythonPackages) sphinx;
  #  };
  #
    rng_tools = callPackage ../tools/security/rng-tools { };
  #
  #  rsnapshot = callPackage ../tools/backup/rsnapshot {
  #    logger = utillinux;
  