GNU bug report logs - #37015
man link gives me car: Variable binding depth exceeds max-specpdl-size

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From: Jean Louis <bugs <at> gnu.support>
To: rswgnu <at> gmail.com
Cc: 37015 <at> debbugs.gnu.org
Subject: bug#37015: man link gives me car: Variable binding depth exceeds max-specpdl-size
Date: Tue, 13 Aug 2019 09:50:27 +0200

* Robert Weiner <rsw <at> gnu.org> [2019-08-13 04:12]:
> On Mon, Aug 12, 2019 at 6:16 PM Jean Louis <bugs <at> gnu.support> wrote:
> 
> > I use:  Editor:      GNU Emacs 27.0.50 (build 3, x86_64-pc-linux-gnu, X
> > toolkit, Xaw3d scroll bars)
> >
> >         Hyperbole:   7.0.3a
> >         Sys Type:    x86_64-pc-linux-gnu
> >         OS Type:     gnu/linux
> >         Window Sys:  x
> >         News Reader: Gnus v5.13
> >
> > Making completion list...
> >
> 
> Not sure where that is coming from above.
> 
> > <(Read)> executes (man-show grep)
> >
> 
> Where is man-show defined.  I don't have it in Emacs 26.  Using the same
> Emacs version as you but under MacOS.

It is in Hyperbola 7.0.3 I guess, also 7.0.3a I guess only, as I
removed 7.0.3a for a while, will get it later again.

(defact man-show (topic)
  "Displays man page on TOPIC, which may be of the form <command>(<section>).
If using the Superman manual entry package, see the documentation for
`sm-notify' to control where the man page is displayed."
  (interactive "sManual topic: ")
  (let ((display-buffer-function
	 (lambda (buffer &rest unused) (hpath:display-buffer buffer))))
    (manual-entry topic)))

> Invoking man grep in the background
> > if: Variable binding depth exceeds max-specpdl-sizeUnable to load color
> > unspecified-bg
> > Unable to load color unspecified-fg
> > car: Variable binding depth exceeds max-specpdl-size
> > next-line: End of buffer
> >
> > Seems like you have loaded something outside of Hyperbole that has caused
> an infinite loop, maybe improperly overloading a standard man function.
> 
> Try starting with no initializations and then loading Hyperbole manually.

I have tried with emacs -Q on version 7.0.3 and I get the same. I do
not load nothing else but (package-initialize) and (require
'hyperbole)

For information about GNU Emacs and the GNU system, type C-h C-a.
C-x C-g is undefined
nil
Initializing Hyperbole...done
Hyperbole 7.0.3 is ready for action.
hyperbole
(New file) [2 times]
<(Read manual)> executes (man-show "mc")
Saving file /home/data1/protected/new1.text...
Saving file /home/data1/protected/.hypb...
Wrote /home/data1/protected/.hypb
Wrote /home/data1/protected/new1.text
Waiting for git... [2 times]
Invoking man mc in the background
switch-to-buffer-other-window: Variable binding depth exceeds max-specpdl-size

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