vc-annotate tries to load vc-nil

[Reiner Steib]

Hi Stefan,

the following change breaks `M-x vc-annotate RET' for me:

2005-12-22  Stefan Monnier  <address@hidden>

        * vc.el: [...]
        (vc-annotate-buffers): Remove var.
        (vc-annotate-backend): Make it buffer-local.
        (vc-annotate): Move the interaction to the interactive spec.
        Add a `buf' argument.
        (vc-annotate-warp-version): Use this new `buf' argument to avoid
        killing&creating a vc-annotate buffer, which is very disruptive when
        the buffers are shown in dedicated frames.

$ emacs-cvs -Q -f toggle-debug-on-error [...]/emacs/lisp/vc.el -f vc-annotate

Debugger entered--Lisp error: (file-error "Cannot open load file" "vc-nil")
  require(vc-nil)
  vc-find-backend-function(nil annotate-command)
  vc-annotate("[...]/emacs/lisp/vc.el" "1.409" nil)
  call-interactively(vc-annotate)
  command-execute(vc-annotate)
  command-line-1(("-f" "toggle-debug-on-error"
    "[...]/emacs/lisp/vc.el" "-f" "vc-annotate"))
  command-line()
  normal-top-level()

If I revert to revision 1.407 of vc.el it works as expected:

$ emacs-cvs -Q -f toggle-debug-on-error \
  -l [...]/emacs/lisp/vc.el.~1.407~ \
     [...]/emacs/lisp/vc.el -f vc-annotate

Bye, Reiner.

`report-emacs-bug' output follows:

In GNU Emacs 22.0.50.1 (x86_64-unknown-linux-gnu, GTK+ Version 2.4.9)
 of 2005-12-28 on bridgekeeper
X server distributor `The X.Org Foundation', version 11.0.60801000
configured using `configure '--prefix=/import/xtra/emacs/HEAD' '--with-gtk' 
'--exec-prefix=/import/xtra/emacs/HEAD-x86_64''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: POSIX
  value of $LC_CTYPE: address@hidden
  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
  locale-coding-system: iso-8859-15
  default-enable-multibyte-characters: t

Major mode: Debugger

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:
<help-echo> <help-echo> M-x r e p o <tab> <left> <end> 
r t <tab> <return>

Recent messages:
Annotating...
Loading debug...done
Entering debugger...
Loading help-mode...done
Making completion list...
Redisplaying annotation...done
Error during redisplay: (file-error Cannot open load file vc-nil)
Loading emacsbug...
Loading regexp-opt...done
Loading emacsbug...done