From 049eb3f769aad869341f54f8ee9544525f4293b3 Mon Sep 17 00:00:00 2001
From: Matthias Clasen <mclasen@redhat.com>
Date: Tue, 17 Nov 2015 22:48:35 -0500
Subject: [PATCH] popover: Avoid a crash when no relative-to widget is set

This was showing up in glade, which creates freestanding
popovers.
---
 gtk/gtkpopover.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gtk/gtkpopover.c b/gtk/gtkpopover.c
index 054158202e..c7bed7f366 100644
--- a/gtk/gtkpopover.c
+++ b/gtk/gtkpopover.c
@@ -1363,6 +1363,9 @@ gtk_popover_check_invalidate_borders (GtkPopover *popover)
   GtkPositionType gap_side;
   gint tip_x, tip_y;
 
+  if (!priv->widget)
+    return;
+
   gtk_popover_get_gap_coords (popover, NULL, NULL,
                               &tip_x, &tip_y, NULL, NULL,
                               &gap_side);