bug#64590: Patch: fix gud-go in gdb-mi.el

[Wang Diancheng <dianchengwang@gmail.com>]

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Eli Zaretskii <eliz@gnu.org> 于2023年7月13日周四 16:58写道：
>
> > From: Wang Diancheng <dianchengwang@gmail.com>
> > Date: Thu, 13 Jul 2023 12:40:58 +0800
> >
> > document of gud-go says "Start or continue execution.  Use a prefix to
> > specify arguments." but it always prompts for program arguments
> > regardless of whether "C-u" is pressed because arg is numeric prefix
> > here.
>
> Right, gud-def specifies '(interactive "p")'.
>
> > The attachment is a patch to change gud-go just prompts if
> > prefix is not 1.
>
> This will have the subtlety that "C-u 1 C-v" will fail to ask for
> program arguments.  Shouldn't we instead look at current-prefix-arg?
>

Thanks.

Yes, I think it's a good idea. the patch is updated as that.

> Thanks.

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diff --git a/lisp/progmodes/gdb-mi.el b/lisp/progmodes/gdb-mi.el
index 199be3318a1..a1091de43e9 100644
--- a/lisp/progmodes/gdb-mi.el
+++ b/lisp/progmodes/gdb-mi.el
@@ -987,7 +987,7 @@ gdb
 	   "\C-u" "Continue to current line or address.")
   (gud-def
    gud-go (progn
-            (when arg
+            (when (and current-prefix-arg arg)
               (gud-call (concat "-exec-arguments "
                                 (read-string "Arguments to exec-run: "))))
             (gud-call