cc-mode totally broken

[Jan D.]

Symptoms:

cc-mode reports errors, no matter what you do.  I did make bootstrap.
To reproduce:
% emacs -Q x.c

and then press tab in the buffer.


Messages says:
(emacs -Q x.c)
Loading disp-table...done
For information about the GNU Project and its goals, type C-h C-p.
Loading vc-cvs...done
(New file)
Loading cc-mode...done
Eval error in the `c-lang-defvar' for `c-known-type-key': (void-function mapcan)
c-forward-type: Wrong type argument: stringp, nil



If emacs crashed, and you have the emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
/opt/emacs-cvs/share/emacs/22.0.50/etc/DEBUG for instructions.


In GNU Emacs 22.0.50.1 (i686-pc-linux-gnu, GTK+ Version 2.6.9)
 of 2005-12-02 on gaffa
X server distributor `The X.Org Foundation', version 11.0.60802000
configured using `configure '--prefix=/opt/emacs-cvs' '--verbose' 
'--with-x-toolkit=gtk' 'CFLAGS=-g''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: C
  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: sv_SE
  locale-coding-system: iso-latin-1
  default-enable-multibyte-characters: t

Major mode: Fundamental

Minor modes in effect:
  tooltip-mode: t
  auto-compression-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  line-number-mode: t

Recent input:
<down-mouse-1> <mouse-1> <tab> <help-echo> <down-mouse-1> 
<drag-mouse-1> <help-echo> <down-mouse-1> <mouse-1> 
<double-down-mouse-1> <double-mouse-1> <triple-down-mouse-1> 
<mouse-movement> <mouse-movement> <triple-drag-mouse-1> 
<help-echo> <down-mouse-1> <mouse-1> <double-down-mouse-1> 
<double-mouse-1> <triple-down-mouse-1> <mouse-movement> 
<mouse-movement> <triple-drag-mouse-1> <escape> w <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<menu-bar> <help-menu> <report-emacs-bug>

Recent messages:
(emacs -Q x.c)
Loading disp-table...done
For information about the GNU Project and its goals, type C-h C-p.
Loading vc-cvs...done
(New file)
Loading cc-mode...done
Eval error in the `c-lang-defvar' for `c-known-type-key': (void-function mapcan)
c-forward-type: Wrong type argument: stringp, nil
Loading emacsbug...done