anchor.diff:  , libxml2, libxslt, docbook_xsl, docbook_xml_dtd_42, samba, libmtp
   , gnomeSupport ? false, gnome, makeWrapper
   , libimobiledevice, libbluray, libcdio-paranoia, libnfs, openssh
  +, libsecret, libgdata
   }:
   
   let
  
positive.code:   ] ++ stdenv.lib.optionals (!gnomeSupport) [
      "-Dgcr=false" "-Dgoa=false" "-Dkeyring=false" "-Dhttp=false"
      "-Dgoogle=false"
    ];
  
    enableParallelBuilding = true;
  
negative.code:       # ToDo: a ligther version of libsoup to have FTP/HTTP support?
      ] ++ stdenv.lib.optionals gnomeSupport (with gnome; [
        libsoup gcr
        gnome-online-accounts libsecret libgdata
      ]);
  
    mesonFlags = [
  