M-x cperl-indent-region: why error "no comment syntax is defined"?

[David Combs]

(I cross-post this in hope that eg ilya or other guru might see it
sooner. Plus ANY respondees will see posts from ALL respondees.
(yes, I know there is a religious-issue about cross-posting :-( ))


M-x cperl-indent-region: why error "no comment syntax is defined"?

----- Heading-lines of /.../cvs-emacs--6apr05/lisp/progmodes/cperl-mode.el:

;;; cperl-mode.el --- Perl code editing commands for Emacs

;; Copyright (C) 1985,86,87,91,92,93,94,95,96,97,98,99,2000,03,2004,2005
;; Free Software Foundation, Inc.

;; Author: Ilya Zakharevich and Bob Olson
;; Maintainer: Ilya Zakharevich <[email protected]>
;; Keywords: languages, Perl

;; This file is part of GNU Emacs.


(I could find no version-number in the file, but
the line-numbers via egrep -n could indicate the version):
---------------- an egrep on 'comment-start':


../progmodes/cperl-mode.el:1466: (make-local-variable 'comment-start)
../progmodes/cperl-mode.el:1467: (setq comment-start "# ")
../progmodes/cperl-mode.el:1472: (make-local-variable 'comment-start-skip)
../progmodes/cperl-mode.el:1473: (setq comment-start-skip "#+ *")

../progmodes/cperl-mode.el:1654: (let ((comment-start "#"))
../progmodes/cperl-mode.el:1661: (let ((comment-start "#"))




---- FWIW (probably nothing), I not-much-later got this error:

File mode specification error: (void-variable mode-require-final-newline)
keyboard-quit: Quit
cperl-mode: Symbol's value as variable is void: mode-require-final-newline [2 times]
Mark set


Thanks,

David