anchor.diff:  #
   #  npapi_sdk = callPackage ../development/libraries/npapi-sdk {};
   #
  -#  npth = callPackage ../development/libraries/npth {};
  +  npth = callPackage ../development/libraries/npth {};
   #
   #  nmap = callPackage ../tools/security/nmap { };
   #
  
positive.code: #
  #  libewf = callPackage ../development/libraries/libewf { };
  #
  #  libexif = callPackage ../development/libraries/libexif { };
  #
  #  libexosip = callPackage ../development/libraries/exosip {};
  #
  
negative.code: #
  #  freefall = callPackage ../os-specific/linux/freefall { };
  #
    fuse = callPackage ../os-specific/linux/fuse { };
  #
  #  fusionio-util = callPackage ../os-specific/linux/fusionio/util.nix { };
  #
  