`describe-key' recently broke in Viper

[Edward O'Connor]

This bug report will be sent to the Free Software Foundation,
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Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the address@hidden mailing list.

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

I'm not entirely sure when this started happening, but at some point in
the reasonably recent past `describe-key' stopped working in Viper. I
get this error:

,----
| Debugger entered--Lisp error: (wrong-type-argument arrayp nil)
|   ad-Orig-describe-key("^X^C" nil nil)
|   (setq ad-return-value (ad-Orig-describe-key key untranslated up-event))
|   (let (ad-return-value) (setq ad-return-value (ad-Orig-describe-key key 
untranslated up-event)) ad-return-value)
|   describe-key("^X^C")
|   call-interactively(describe-key)
|   execute-extended-command(nil)
|   call-interactively(execute-extended-command)
`----

In GNU Emacs 22.0.50.2 (i386-unknown-freebsd5.3, Motif Version 2.2.3, multi-tty)
 of 2005-04-25 on niamh.cfhp.org
Distributor `The X.Org Foundation', version 11.0.60802000
configured using `configure '--with-x-toolkit=motif' '--with-xpm' '--with-jpeg' 
'--with-tiff' '--with-gif' '--with-png' '--with-x' 
'--prefix=/home/ted/i386-freebsd''

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: nil
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Major mode: Summary

Minor modes in effect:
  iswitchb-mode: t
  auto-insert-mode: t
  show-paren-mode: t
  minibuffer-electric-default-mode: t
  auto-image-file-mode: t
  mouse-wheel-mode: t
  tooltip-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  temp-buffer-resize-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t
  next-error-follow-minor-mode:  Fol
  abbrev-mode: t

Recent input:
M-x g n u s <return> <return> <return> SPC q l L C-r 
g m a n e . e m a c s . p r e t C-f <return> 1 <return> 
q <return> 1 0 <return> <down> <down> <down> <return> 
C-x 1 M-x r e p o <tab> r <tab> e <backspace> <ret
urn>

Recent messages:
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-- 
Edward O'Connor
address@hidden

Ense petit placidam sub libertate quietem.