Custom menu + flyspell-mode = EMACS segfaults

[Felix E. Klee]

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In GNU Emacs 21.3.2 (i486-slackware-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2003-05-23 on midas
configured using `configure  i486-slackware-linux --prefix=/usr --with-x11 
--with-x-toolkit --with-pop'
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: C
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

To trigger the bug follow these instructions:
1. Create a "~/.emacs" with the following contents:
   (add-hook 'tex-mode-hook
            '(lambda ()
               (define-key tex-mode-map [menu-bar tex-project] 
                 (cons "tex-Project" tex-mode-map))))
2. Start or restart EMACS.
3. Open a Tex file (e.g. "~/tmp/qqq.tex") and maybe put some text into
   it.
4. Activate flyspell-mode (M-x flyspell-mode). Now EMACS crashes with
   the error message "segmentation fault".

BTW, I'm running EMACS under Slackware 9.1 on a Intel Celeron (Coppermine)
powered system.

Recent input:
C-x C-f t m <tab> m y a < <backspace> <backspace> <backspace> 
<backspace> b u <tab> <return> <next> <prior> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> C-x 1 <next> <next> <prior> 
C-x k <return> M-x r e p <tab> o <tab> r <tab> <re
turn>

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