reftex under Xemacs 21.5.33 Mule

Hi I just downloaded the latest reftex version from the GNU Emacs textmode directory and compiled it with a list of compiler warnings. Then I enabled it and opened a Latex file, reftex mode was on, however when I try to run reftex-toc I obtain an error (debug-on-error t) which I attach. I understand that Xemacs compatibility is not guaranteed, since for quite a while reftex is part of GNU Emacs. However I would like to know whether it could be made compatible with Xemacs, I CC xemacs-beta Emacs: XEmacs 21.5 (beta33) "horseradish" [Lucid] (i686-pc-linux, Mule) of Fri Oct 17 2014 on Burrurr Package: 21.5 (beta33) "horseradish" XEmacs Lucid current state: ============== (setq window-system 'x reftex-plug-into-AUCTeX t ) _______________________________________________ XEmacs-Beta mailing list XEmacs-Beta(a)xemacs.org http://lists.xemacs.org/mailman/listinfo/xemacs-beta