imenu issue from Bug #13438

[Fabian Ezequiel Gallina <galli.87@gmail.com>]

Got a quick look at
http://debbugs.gnu.org/cgi/bugreport.cgi?bug=13438, in there I think
the problem is related to how `imenu-default-create-index-function'
detects infinite recursion. I this case, because the the point is at
the beginning of the latest available defun, the points doesn't move
and it throws the infinite loop error.

Here's a mindless quick patch that seems to fix the problem. I could
install it myself but I'd like some input first.


=== modified file 'lisp/imenu.el'
--- lisp/imenu.el       2013-01-01 09:11:05 +0000
+++ lisp/imenu.el       2013-01-21 21:03:57 +0000
@@ -683,7 +683,8 @@
           (goto-char (point-max))
           ;; Search for the function
           (while (funcall imenu-prev-index-position-function)
-             (when (= pos (point))
+             (when (and (= pos (point))
+                        (save-excursion (beginning-of-defun)))
                (error "Infinite loop at %s:%d:
imenu-prev-index-position-function does not move point" (buffer-name)
pos))
              (setq pos (point))
             (save-excursion



Regards,
Fabián