From e2e94ed5c3e6546e4a7653280e02f4fcd4a0f20b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alberts=20Muktup=C4=81vels?= <alberts.muktupavels@gmail.com>
Date: Sun, 8 Jan 2023 15:45:04 +0200
Subject: handle: avoid segfault in init_xres

Under Wayland display will be NULL, add early return to avoid
segfault.

https://gitlab.gnome.org/GNOME/libwnck/-/issues/157
---
 libwnck/wnck-handle.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libwnck/wnck-handle.c b/libwnck/wnck-handle.c
index e6d776b..0ea789e 100644
--- a/libwnck/wnck-handle.c
+++ b/libwnck/wnck-handle.c
@@ -185,6 +185,10 @@ init_xres (WnckHandle *self)
   int minor;
 
   xdisplay = _wnck_get_default_display ();
+
+  if (xdisplay == NULL)
+    return;
+
   event_base = error_base = major = minor = 0;
 
   if (XResQueryExtension (xdisplay, &event_base, &error_base) &&
-- 
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