[gtk+/wip/mir] Don't crash on unknown properties

[Robert Ancell <rancell src gnome org>]

commit a20444ff62ef59ce40448625373d4ea3d6756f5c
Author: Robert Ancell <robert ancell canonical com>
Date:   Tue Jun 10 16:52:01 2014 +1200

    Don't crash on unknown properties

 gdk/mir/gdkmirscreen.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)
---
diff --git a/gdk/mir/gdkmirscreen.c b/gdk/mir/gdkmirscreen.c
index 2ce6979..befc84c 100644
--- a/gdk/mir/gdkmirscreen.c
+++ b/gdk/mir/gdkmirscreen.c
@@ -579,7 +579,13 @@ gdk_mir_screen_get_setting (GdkScreen   *screen,
       return TRUE;
     }
 
-  g_error ("unknown property %s", name);
+  if (g_str_equal (name, "gtk-label-select-on-focus"))
+    {
+      g_value_set_boolean (value, FALSE);
+      return TRUE;
+    }
+
+  g_warning ("unknown property %s", name);
 
   return FALSE;
 }