Bug#873359: Gdk-WARNING "drawable is not a native X11 window"

[Josh Triplett]

Package: four-in-a-row
Version: 1:3.22.1-1
Severity: normal

When run on Wayland, four-in-a-row prints the following message every
time a move is made:

(four-in-a-row:5261): Gdk-WARNING **: /build/gtk+3.0-5gQa2C/gtk+3.0-3.22.18/./gdk/x11/gdkwindow-x11.c:5573 drawable is not a native X11 window

A check in gtk+3.0 suggests that this message comes from
gdk_x11_window_get_xid. This message doesn't occur when running with
GDK_BACKEND=x11. It looks like something in four-in-a-row or its helper
libraries attempts to access the X backend directly, which it shouldn't
do.

-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.12.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE=C.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages four-in-a-row depends on:
ii  dconf-gsettings-backend [gsettings-backend]  0.26.0-2+b1
ii  libc6                                        2.25-0experimental1
ii  libcairo2                                    1.14.10-1
ii  libcanberra-gtk3-0                           0.30-3
ii  libgdk-pixbuf2.0-0                           2.36.5-2
ii  libglib2.0-0                                 2.53.6-1
ii  libgtk-3-0                                   3.22.18-1

Versions of packages four-in-a-row recommends:
ii  yelp  3.22.0-1

four-in-a-row suggests no packages.

-- no debconf information