anchor.diff:  #
   #  librevisa = callPackage ../development/libraries/librevisa { };
   #
  -#  libsamplerate = callPackage ../development/libraries/libsamplerate { };
  +  libsamplerate = callPackage ../development/libraries/libsamplerate { };
   #
   #  libsieve = callPackage ../development/libraries/libsieve { };
   #
  -#  libgsf = callPackage ../development/libraries/libgsf { };
  -#
  -#  libid3tag = callPackage ../development/libraries/libid3tag { };
  -#
  -#  libidn = callPackage ../development/libraries/libidn { };
  +  libgsf = callPackage ../development/libraries/libgsf { };
  +#
  +  libid3tag = callPackage ../development/libraries/libid3tag { };
  +#
  +  libidn = callPackage ../development/libraries/libidn { };
   #
   #  idnkit = callPackage ../development/libraries/idnkit { };
   #
  
positive.code: #
  #  enginepkcs11 = callPackage ../development/libraries/enginepkcs11 { };
  #
  #  epoxy = callPackage ../development/libraries/epoxy {};
  #
  #  esdl = callPackage ../development/libraries/esdl { };
  #
  #  exiv2 = callPackage ../development/libraries/exiv2 { };
  #
  #  expat = callPackage ../development/libraries/expat { };
  #
  #  eventlog = callPackage ../development/libraries/eventlog { };
  #
  
negative.code: #  xercesc = callPackage ../development/libraries/xercesc {};
  #
  #  # Avoid using this. It isn't really a wrapper anymore, but we keep the name.
    xlibsWrapper = callPackage ../development/libraries/xlibs-wrapper {
      packages = [
        freetype fontconfig xorg.xproto xorg.libX11 xorg.libXt
        xorg.libXft xorg.libXext xorg.libSM xorg.libICE
        xorg.xextproto
      ];
    };
  #
    xmlrpc_c = callPackage ../development/libraries/xmlrpc-c { };
  #
  #  xmlsec = callPackage ../development/libraries/xmlsec { };
  #
  