Yes, the problem goes away after reverting this commit.

Thanks Eli

Le jeu. 31 oct. 2019 à 00:18, Eli Zaretskii <eliz@gnu.org> a écrit :

> severity 37097 normal
> merge 37986 37097
> thanks
>
> > From: Sébastien Chapuis <sebastien@chapu.is>
> > Date: Wed, 30 Oct 2019 17:00:00 +0800
> >
> > $ git clone --recursive git://git.savannah.gnu.org/emacs.git
> > $ cd emacs && ./autogen.sh
> > $ mkdir build && cd build
> > $ ../configure --prefix=/opt/emacs-git --with-modules --with-xwidgets
> --with-imagemagick
> > $ make install
> > $ /opt/emacs-git/bin/emacs --fg-daemon -Q
> >
> > Open another terminal (terminal #2):
> > $ /opt/emacs-git/bin/emacsclient -n -c BIG_FILE.txt
> > the command doesn't return and no frame is opened.
> > On the terminal #1, there is this output:
> >
> > ```
> > Warning: due to a long standing Gtk+ bug
> > https://gitlab.gnome.org/GNOME/gtk/issues/221
> > Emacs might crash when run in daemon mode and the X11 connection is
> unexpectedly lost.
> > Using an Emacs configured with --with-x-toolkit=lucid does not have this
> problem.
> > Starting Emacs daemon.
> > File BIG_FILE.txt is large (11.9 MiB), really open? (y)es or (n)o or
> (l)iterally
> > File BIG_FILE.txt is large (11.9 MiB), really open? (y)es or (n)o or
> (l)iterally
> > ```
> >
> > Open a 3rd terminal (terminal #3):
> > $ /opt/emacs-git/bin/emacsclient -n -c
> > A new frame is opened with this message in the minibuffer:
> > `File BIG_FILE.txt is large (11.9 MiB), really open? (y)es or (n)o or
> (l)iterally`
> > If I type `y`, a new frame is opened (from terminal #2) with the file
> BIG_FILE.txt in its buffer.
>
> Thanks.  Can you see if the problem goes away if you revert commit
> 49fc040?
>