vc (SCCS) startup error

[Alan Morgan]

This bug report will be sent to the Free Software Foundation,
not to your local site managers!
Please write in English, because the Emacs maintainers do not have
translators to read other languages for them.

Your bug report will be posted to the bug-gnu-emacs@gnu.org mailing list,
and to the gnu.emacs.bug news group.

In GNU Emacs 21.2.2 (sparc-sun-solaris2.6, OSF/Motif Version 1.2.6)
 of 2002-08-08 on athene
configured using `configure  --with-x-toolkit=motif 
--prefix=/usr/local/src/edcad/gnu'
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: C
  locale-coding-system: nil
  default-enable-multibyte-characters: t

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

On reading (using C-x C-f) a file source controlled by SCCS and which has been
checked out from the command line, emacs gives the error

vc-sccs-state: Symbol's function definition is void: vc-workfile-unchanged-p

This does not occur either with GNU Emacs 20.2.1. In version 21.2, the error
does not occur if the variable vc-mistrust-permissions is set to t.

Attached is a tar file including a test case which shows the bug. This file
contains a directory called emacsbugshow, the subdirectory SCCS and its
associated files and a test file myfile.txt. To see the bug, start a new
vanilla emacs with emacs -q, and use C-x C-f to find myfile.txt.

emacsbugshow.tar
Description: bug example files