anchor.diff:  #
   #  libmng = callPackage ../development/libraries/libmng { };
   #
  -#  libmnl = callPackage ../development/libraries/libmnl { };
  +  libmnl = callPackage ../development/libraries/libmnl { };
   #
   #  libmodplug = callPackage ../development/libraries/libmodplug {};
   #
  
positive.code: #
  #  glpk = callPackage ../development/libraries/glpk { };
  #
  #  gmime = callPackage ../development/libraries/gmime { };
  #
  #  gmm = callPackage ../development/libraries/gmm { };
  #
  
negative.code:   openssh_with_kerberos = pkgs.appendToName "with-kerberos" (openssh.override { withKerberos = true; });
  
    opensp = callPackage ../tools/text/sgml/opensp { };
  
    spCompat = callPackage ../tools/text/sgml/opensp/compat.nix { };
  #
  #  opentracker = callPackage ../applications/networking/p2p/opentracker { };
  #
  