Dear Eli,

[...]

>
> That's because Emacs already exited by that time. You need to catch
> the moment when it crashes.
>
> The problem here is that you run the wrong program under the debugger:
> runemacs.exe. You need to invoke emacs.exe instead.
>
> Please invoke Emacs under GDB like this:
>
> gdb c:/Programme/GNU/Emacs/bin/emacs.exe
> (gdb) run -Q --eval=... <put here the rest of the command line>

Ok...

Here is attached the log of the gdb sessione encoded in raw-text coding
system, please feel free to ask me for any further step --- like setting
break points, dumping some variable contents, and so on --- if it can
help locate the problem.

BR,
  Vincent.