Hello,

This may be a bit too early, given how prevalent it is to be using older
versions of GDB but I figured I should send this patch anyways to get it
out of
my mind:

For GDB version >= 11, starting up a debugging session with 'gdb-mi.el'
always
ends with this message:

> (gdb) Warning: 'set target-async', an alias for the command 'set
mi-async', is
> deprecated.  Use 'set mi-async'.

This is a bit of an eyesore and also breaks the initial prompt (although
that is
easily fixed by pressing enter, etc, but that may still be confusing for new
users).

It may be reasonable to either query the GDB version (not sure how though,
unfortunately) and then use the old command (`set target-async`) or execute
the
non-deprecated command instead (`set mi-async`), and then possibly trying
the
old on if the new one did not work.

Apparently, `set mi-async` is a GDB 7.8 feature (Released Jul 2014), so this
change may cause incompatibilities with earlier GDB versions. That said, I
suspect that it will only cause a warning message to appear for using an
unsupported command, but unfortunately I don't have an old enough version
of GDB
handy to try that out.

Any strong opinions either way? The attached patch only replaces the old
command
with the new one, but I'm open for suggestions.

Best regards,
Gustaf

In GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version
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