bug#1004: 23.0.60; Error visiting C files

[Eli Zaretskii]

 emacs -Q
 C-x C-f foo.c

This produces error messages (see near the end of this report) and
does NOT enter the C Mode.

In GNU Emacs 23.0.60.67 (x86_64-unknown-linux-gnu, X toolkit)
 of 2008-09-19 on fencepost
configured using `configure  '--with-jpeg=no' '--with-png=no' '--with-gif=no' 
'--with-tiff=no''

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
  value of $XMODIFIERS: nil
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Major mode: Fundamental

Minor modes in effect:
  tooltip-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  global-auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
ESC [ > 0 ; 1 3 6 ; 0 c C-x C-f e m a c s . c v TAB 
e m a c s / s r c / m s d o TAB c RET C-x b * M e s 
TAB RET ESC O A ESC O A ESC O A ESC O A ESC O A ESC 
O A C-@ C-u C-n C-n ESC w C-x b RET ESC x r e p o r 
t - e m a c s - b u TAB RET

Recent messages:
("./emacs.cvs/emacs/src/emacs" "-Q")
For information about GNU Emacs and the GNU system, type C-h C-a.
Loading cc-langs...done
Eval error in the `c-lang-defconst' for `c-cpp-matchers' in c-mode:
Eval error in the `c-lang-defconst' for `c-matchers-1' in c-mode:
File mode specification error: (error "`c-opt-cpp-prefix' got no (prior) value 
in c-mode (might be a cyclic reference)")
Loading vc-cvs...done
Mark set