Error when entering tool-bar-mode

[David Kastrup]

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

When using
M-x tool-bar-mode RET
from an otherwise toolbar-less Emacs (started with Xresources
containing
Emacs.toolBar: 0
) I got the following backtrace:

Debugger entered--Lisp error: (wrong-type-argument keymapp nil)
  signal(wrong-type-argument (keymapp nil))
  define-key-after(nil [customize] (menu-item "customize" customize :image 
(image :type xpm :file 
"/usr/local/emacs-21/share/emacs/22.0.50/etc/images/preferences.xpm") :help 
"Edit preferences (customize)"))
  tool-bar-local-item("preferences" customize customize nil :help "Edit 
preferences (customize)")
  apply(tool-bar-local-item "preferences" customize customize nil (:help "Edit 
preferences (customize)"))
  tool-bar-add-item("preferences" customize customize :help "Edit preferences 
(customize)")
  tool-bar-setup()
  tool-bar-mode(toggle)
  call-interactively(tool-bar-mode)
  execute-extended-command(nil)
  call-interactively(execute-extended-command)


The mode was message-mode, but I doubt that it relevant.  I also have
to stress that starting tool-bar-mode will make the Emacs buffer go
off-screen at the bottom.  It is a nuisance.

In GNU Emacs 22.0.50.23 (i686-pc-linux-gnu, GTK+ Version 2.8.6)
 of 2005-10-28 on lola
X server distributor `The X.Org Foundation', version 11.0.60802000
configured using `configure '--prefix=/usr/local/emacs-21' '--with-gtk' 
'--without-toolkit-scroll-bars''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: en_US.ISO-8859-1
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.UTF-8
  locale-coding-system: iso-latin-1
  default-enable-multibyte-characters: t

Major mode: Debugger

Minor modes in effect:
  tool-bar-mode: t
  TeX-PDF-mode: t
  file-name-shadow-mode: t
  desktop-save-mode: t
  iswitchb-mode: t
  minibuffer-electric-default-mode: t
  mouse-wheel-mode: t
  tooltip-mode: t
  auto-compression-mode: t
  menu-bar-mode: t
  blink-cursor-mode: t
  unify-8859-on-decoding-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  line-number-mode: t

Recent input:
C-k C-k <return> E x c e p t SPC t h a t SPC d r o 
p SPC s h a d o w s SPC t e n <backspace> <backspace> 
<backspace> d o n ' t SPC l o o k SPC f i n e SPC t 
h e n . M-x t o o l b a r <tab> <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
- b a r <tab> <return> M-x r e p o r t - e m a c s 
- b u g <return>

Recent messages:
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-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum