[gtk+] widget: Only warn about missing allocation if G_ENABLE_DEBUG

[Matthias Clasen <matthiasc src gnome org>]

commit 5ea69a136bd7e4970b3a800390e20314665aaed2
Author: Timm Bäder <mail baedert org>
Date:   Wed Sep 14 18:06:54 2016 -0400

    widget: Only warn about missing allocation if G_ENABLE_DEBUG
    
    Not all occurrences of this warning can be fixed today, so put it behind
    a G_ENABLE_DEBUG flag since it still shows legitimate problems even if
    some of them are false positives.

 gtk/gtkwidget.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index 4c1d798..017bbbe 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -6998,8 +6998,10 @@ gtk_widget_draw_internal (GtkWidget *widget,
       if (push_group)
         cairo_push_group (cr);
 
+#ifdef G_ENABLE_DEBUG
       if (_gtk_widget_get_alloc_needed (widget))
         g_warning ("%s %p is drawn without a current allocation. This should not happen.", 
G_OBJECT_TYPE_NAME (widget), widget);
+#endif
 
       if (g_signal_has_handler_pending (widget, widget_signals[DRAW], 0, FALSE))
         {