Re: Erroneous selection extension in Emacs version 22.1 for Win32

[martin rudalics]

> I tried your fix, but it does not seem to help (I get the same symptoms). The 
only thing I noticed is that the text
>
> (overlay-start mouse-drag-overlay))
>
> is on line 1007 of mouse.el and not on 1013. Is this significant?

My patch was against CVS-1.316 of mouse.el.  Your six lines difference
is probably due to a patch I applied earlier.  Maybe the patch didn't
apply correctly in your case.  Please make sure (if necessary manually)
that your code around the proposed change in `mouse-drag-track' appears
(untabified) as:

                       .....
                       ;; The end that comes from where we started the drag.
                       ;; Mark goes there.
                       (region-commencement
                        (- (+ (overlay-end mouse-drag-overlay)
                              (overlay-start mouse-drag-overlay))
                           region-termination))
                       last-command this-command)
                  ;; Turn off tracking.
                  (when (eq transient-mark-mode 'identity)
                    (setq transient-mark-mode nil))
                  (push-mark region-commencement t t)
                  (goto-char region-termination)
                  (if (not do-mouse-drag-region-post-process)
                      ;; Skip all post-event handling, return immediately.
                      (delete-overlay mouse-drag-overlay)
                    ;; Don't let copy-region-as-kill set deactivate-mark.
                    ....

Note also that mouse.el is preloaded.  Hence you must either re-make
Emacs or load mouse.el separately (if you can't make).