void-function vc-cvs-make-version-backups-p

[Jesper Harder]

I get this backtrace when I try to save a modified file under CVS:

Debugger entered--Lisp error: (void-function vc-cvs-make-version-backups-p)
  vc-cvs-make-version-backups-p("/home/harder/gnus/lisp/gnus-start.el")
  apply(vc-cvs-make-version-backups-p "/home/harder/gnus/lisp/gnus-start.el")
  vc-call-backend(CVS make-version-backups-p 
"/home/harder/gnus/lisp/gnus-start.el")
  vc-before-save()
  basic-save-buffer()
  save-buffer(1)
  call-interactively(save-buffer)


In GNU Emacs 21.3.50.123 (i686-pc-linux-gnu)
 of 2003-07-05 on defun.localdomain
configured using `configure '--with-gtk''

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: en_US.iso88591
  locale-coding-system: iso-latin-1
  default-enable-multibyte-characters: t

Recent input:
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> g C-x 
C-f g n u s / l i s SPC g n u s - a <backspace> s t 
a r SPC SPC <return> M-g 6 8 5 <return> <down> <down> 
<down> <up> C-e <return> <tab> <down-mouse-1> <mouse-1> 
<down-mouse-3> <mouse-3> <down-mouse-1> <mouse-1> <down-mouse-2> 
<mouse-2> C-x C-s C-x C-s <down-mouse-1> <mouse-1> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <menu-bar> <options> 
<debug-on-error> C-x C-s M-x r e p o r t - <tab> <
return>

Recent messages:
Loading compile...done
Mark set
Saving file /home/harder/gnus/lisp/gnus-start.el...
apply: Symbol's function definition is void: vc-cvs-make-version-backups-p
Saving file /home/harder/gnus/lisp/gnus-start.el...
apply: Symbol's function definition is void: vc-cvs-make-version-backups-p
Debug on Error enabled
Saving file /home/harder/gnus/lisp/gnus-start.el...
Loading debug...done
Entering debugger...