anchor.diff:      nspr
       nss
       readline
  -    telepathy-glib
  -  ];
  +  ] ++ stdenv.lib.optional telepathySupport telepathy-glib;
   
     propagatedBuildInputs = [
       glib
  
positive.code:     homepage = "https://wiki.gnome.org/Projects/Folks";
      license = licenses.lgpl2Plus;
      maintainers = teams.gnome.members;
      platforms = platforms.gnu ++ platforms.linux;  # arbitrary choice
    };
  }
  
negative.code: , nss
  , dbus
  , libgee
  , evolution-data-server
  , libsecret
  , db
  