bug#64310: 29.0.92; pure-GTK warning under Wayland

[Pankaj Jangid <pankaj@codeisgreat.org>]

Po Lu <luangruo@yahoo.com> writes:

>>> > Pankaj Jangid <pankaj@codeisgreat.org> writes:
>>> >
>>> >> Exec=sh -c "u=\\$(echo \\"\\$1\\" | sed 's/[\\\\\\"]/\\\\\\\\&/g');
>>> >> exec emacsclient --alternate-editor= --display=\\"\\$DISPLAY\\"
>>> >> --eval \\"(message-mailto \\\\\\"\\$u\\\\\\")\\"" sh %u
>>> >
>>> > I think this line here is the problem: it will make emacsclient try to
>>> > use the Xwayland display.  What happens if you delete the `--display'
>>> > argument from this command line?  Emacsclient should be smart enough to
>>> > figure out which display to use from the environment alone.
>>> 
>>> Nope. I removed the "--display=..."  argument from
>>> .local/share/emacs/29.0.92/etc/emacsclient-mail.desktop. It did not make
>>> any difference.
>>> 
>
> Sorry, I must've missed that reply.  Pankaj, what if you replace
> --display="$DISPLAY" with --display="$WAYLAND_DISPLAY"?
>

Nothing changes. When there is no default email handler configured
i.e. when Firefox is set to ask each time. It shows two options for
Emacs - (1) Emacs(Mail, Client) (2) Emacs (Mail). When I select the
first one, it shows error that I reported. If I select option (2), Emacs
launches without any warning (desired behaviour).