problems with compiling auctex

This might be slightly offtopic, but I just got xemacs-21.4.5 and tried to compile auctex-11.06 as well as auctex-10.0g with it. I always get this error: Compiling /scratch/auctex-11.06/auc-old.el... While compiling toplevel forms in file /scratch/auctex-11.06/auc-old.el: !! Symbol's value as variable is void ((popup-mode-menu)) Symbol's value as variable is void: popup-mode-menu Compiling /scratch/auctex-11.06/tex.el... Wrote /scratch/auctex-11.06/tex.elc Compiling /scratch/auctex-11.06/tex-buf.el... While compiling toplevel forms in file /scratch/auctex-11.06/tex-buf.el: !! Symbol's value as variable is void ((popup-mode-menu)) Symbol's value as variable is void: popup-mode-menu Compiling /scratch/auctex-11.06/latex.el... While compiling toplevel forms in file /scratch/auctex-11.06/latex.el: !! Symbol's value as variable is void ((popup-mode-menu)) Symbol's value as variable is void: popup-mode-menu Compiling /scratch/auctex-11.06/tex-info.el... While compiling toplevel forms in file /scratch/auctex-11.06/tex-info.el: !! Symbol's value as variable is void ((popup-mode-menu)) Symbol's value as variable is void: popup-mode-menu I was browsing and googling for a while and found only messages that one should use a binary distribution than and so forth. I would like to fix that problem on my machine and use xemacs with this auctex. Any suggestions how to interpret above message ? I know lisp and scheme but never wrote stuff for emacs/xemacs. thanks alot, Thomas Witzel