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global-font-lock-mode


From: Frederik Fouvry
Subject: global-font-lock-mode
Date: Wed, 30 Jul 2003 17:19:13 +0200 (CEST)

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

In GNU Emacs 21.2.1 (i686-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2002-08-29 on astest
configured using `configure  --host=i686-pc-linux-gnu --build=i686-pc-linux-gnu 
--target=i386-redhat-linux-gnu --program-prefix= --prefix=/usr 
--exec-prefiix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc 
--datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib 
--libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/usr/com 
--mandir=/usr/share/man --infodir=/usr/share/info --with-gcc --with-pop 
--with-sound'
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: POSIX
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: address@hidden
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_GB
  locale-coding-system: iso-latin-1
  default-enable-multibyte-characters: t

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

After loading pcvs.el, the variable global-font-lock-mode is for
Emacs defined in pcvs-info.el (shown by C-h v
global-font-lock-mode RET in the buffer *Help*).  In *Help*
however, it cannot find the definition in pcvs-info.el (by
clicking on "Defined in `pcvs-info'." at the end of the buffer):
is says:

Cannot find definition of `global-font-lock-mode' in library
`pcvs-info'

Actually global-font-lock-mode is defined for a second time in
pcvs-info.el: (from emacs/21.2/lisp/pcvs-info.el):

----------------------------------------------------------------------
(defvar global-font-lock-mode)
(defvar font-lock-auto-fontify)
(defcustom cvs-highlight
  (or (and (boundp 'font-lock-auto-fontify) font-lock-auto-fontify)
      (and (boundp 'global-font-lock-mode) global-font-lock-mode))
  "*Whether to use text highlighting (à la font-lock) or not."
  :group 'pcl-cvs
  :type '(boolean))
----------------------------------------------------------------------

Originally it came from loaddefs.el (and from font-lock.el).

The error message is confusing because of two reasons:
- there _is_ a definition in pcvs-info.el
- the real definition is in loaddefs.el (and coming from font-lock.el).

Given the boundp() test on global-font-lock-mode, I don't see why
defvar() is still necessary.  Perhaps for compilation, but then

(eval-when-compile (require 'font-lock-mode)) 

would solve that.  The variable would only be defined once, and then
it would be found properly from *Help*.

(Probably the same is true for font-lock-auto-fontify, but that's
XEmacs.)

Recent input:
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <drag-mouse-1> <down-mouse-1> 
<mouse-1> <switch-frame> <switch-frame> <help-echo> 
<help-echo> <help-echo> <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> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <menu-bar> <help-menu> 
<report-emacs-bug>

Recent messages:
Scanning buffer for index ( 55%)
Scanning buffer for index ( 74%)
Scanning buffer for index ( 88%)
Scanning buffer for index (100%)
Mark saved where search started
byte-code: Buffer is read-only: #<buffer pcvs-info.el>
Mark saved where search started
Mark set
Mark saved where search started
Loading emacsbug...done




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