bug#24414: 25.1; GDB gdb-show-main error

[Eli Zaretskii]

> From: Live System User <nyc4bos@aol.com>
> Date: Sun, 11 Sep 2016 13:27:14 -0400
> 
> 0. emacs -Q &
> 
> 1. M-: (setq debug-on-error t)
>    M-: (setq gdb-show-main t)
> 
> 2. M-x gdb
>    Run gdb (like this): gdb -i=mi test
> 
> 
> Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p nil)
>   gdb-show-stop-p()
>   (or (not (memq gud-minor-mode (quote (gdbmi pdb)))) (gdb-show-stop-p))
>   redisplay_internal\ \(C\ function\)()

Thanks, this is now fixed on the master branch.