bug#64186: Patch: Suppress deprecated '-gdb-set target-async' warning message in gdb-mi.el

[Eli Zaretskii <eliz@gnu.org>]

> From: Wang Diancheng <dianchengwang@gmail.com>
> Date: Fri, 30 Jun 2023 15:08:18 +0800
> Cc: luangruo@yahoo.com, 64186@debbugs.gnu.org
> 
> Thanks for your comments.I think what exactly the value of
> `gdb-last-command’ is not essential for us.
> We just need to know  whether `gdb-last-command' is a CLI command in
> the background or a MI command,
> since here we have already got its "running" status.  We must check
> the target "async" feature after stopping
> the debuggee at the first time in function `gdb-stopped' if
> `gdb-last-command' is not a background CLI command or a MI command.
> 
> > > +  ;; Set `gdb-non-stop` when `gdb-last-command` is a CLI background
> > > +  ;; `run` command e.g. r& or MI command `-exec-run`
> > > +  (when (or (string-match "&\s*$" gdb-last-command)
> > > +            (string-match "-exec-run" gdb-last-command))
> > > +    (gdb-try-check-target-async-support))
> >
> > And I'm not sure I understand the idea behind this part:
> >
> > > @@ -2722,6 +2744,9 @@ gdb-stopped
> > >
> > >      ;; Print "(gdb)" to GUD console
> > >      (when gdb-first-done-or-error
> > > +      ;; If run target with CLI foreground command `run`, `target
> > > +      ;; async` can only be checked when target is stopped
> > > +      (gdb-try-check-target-async-support)
> > >        (setq gdb-filter-output (concat gdb-filter-output gdb-prompt-name)))
> >
> > Can you elaborate?
> 
> Thanks for your questions, according to my comments above, If the
> debuggee has been started by
> a non-background CLI command e.g. “run" or "attach" (no trailing "&")
> commands, we can only
> check the target "async" feature at the code stack.
> 
> >
> > Finally, please don't quote symbols `like this` in comments.  Our
> > conventions are to quote symbols 'like this' or `like this'.
> 
> I updated the patch, see the attachment.

Thanks, installed on the master branch, and closing the bug.

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