bug#74496: 30.0.91; fullscreen frame set with F11 is shifted when ctwm restarts

[Eli Zaretskii <eliz@gnu.org>]

> From: Van Ly <van.ly@SDF.ORG>
> Cc: eliz@gnu.org, 74496@debbugs.gnu.org
> Date: Mon, 02 Dec 2024 15:47:35 +0000
> 
> I pieced together the following steps to make emacs debuggable.  I'll
> need pointers to info pages to make progress.
> 
> 
> 
>   a.  make distclean
>   b.  configure ... 'CFLAGS=-g3 -ggdb -Og ...'
>   c.  make
> 
> 
> 
>   i.  start, emacs -Q
>   ii. use, M-x gdb
> 

At this point, you should see a prompt in the minibuffer saysing
something like

 Run gdb (like this): gdb -i=mi SOMETHING

Edit the last part so it says /path/to/emacs instead of SOMETHING, and
then press RET.

>    1  For help, type "help".
>    2  Type "apropos word" to search for commands related to "word"...
>    3  "0x7f7fff604da0s": not in executable format: file format not recognized
>    4  No symbol table is loaded.  Use the "file" command.
>    5  Breakpoint 1 (xterm.c:18044) pending.
>    6  No symbol table is loaded.  Use the "file" command.
>    7  Breakpoint 2 (xterm.c:28275) pending.
>    8  No symbol table is loaded.  Use the "file" command.
>    9  Breakpoint 3 (xterm.c:28343) pending.
>   10  (gdb) run
>   11  The target does not support running in non-stop mode.

This is because you didn't give GDB the executable (emacs) to work on
and run.  If you do it like above, then "run" should start Emacs.