bug#36613: gdb: error on M-x menu-bar-open

[Dr. Ludwig Meier]

Thank you! Built the development version this morning, but unfortunately 
the same:

$ emacs -version
GNU Emacs 27.0.50
Copyright (C) 2019 Free Software Foundation, Inc.
GNU Emacs comes with ABSOLUTELY NO WARRANTY.
You may redistribute copies of GNU Emacs
under the terms of the GNU General Public License.
For more information about these matters, see the file named COPYING.
$ emacs -q
M-x gdb
Run gdb (like this): gdb -i=mi
M-x toggle-debug-on-error
M-x menu-bar-open

Debugger entered--Lisp error: (wrong-type-argument listp gud-print)
  popup-menu(gud-print (#<window 4 on *gud*> 374 (1 . 0) 0 nil 374 (1 . 
0) nil (0 . 0) (1 . 0)) nil t)
  menu-bar-open()
  funcall-interactively(menu-bar-open)
  call-interactively(menu-bar-open nil nil)
  command-execute(menu-bar-open)

Am 13.07.19 um 06:45 schrieb Lars Ingebrigtsen:
> "Dr. Ludwig Meier" <ludwig.meier@ymail.com> writes:
>
> > On tty/Ubuntu Terminal:
> >
> > ~$ emacs -Q
> > M-x gdb
> > Run gdb (like this): gdb -i=mi
> > M-x toggle-debug-on-error
> > M-x menu-bar-open
> >
> > Debugger entered--Lisp error: (wrong-type-argument listp gud-print)
> >    popup-menu(gud-print (#<window 1 on *gud*> 2 (1 . 0) 0 nil 2 (1 . 0)
> > nil (0 . 0) (1 . 0)) nil t)
> >    menu-bar-open()
> >    funcall-interactively(menu-bar-open)
>
> I'm unable to reproduce this bug in Emacs 27 (i.e., in the development
> version), so perhaps this has been fixed in the meantime?  Is it
> possible for you to download it (from git) and check?