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-rw-r--r--gtk/gtktypeutils.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/gtk/gtktypeutils.h b/gtk/gtktypeutils.h
index c2fcbde8b..4a2adac35 100644
--- a/gtk/gtktypeutils.h
+++ b/gtk/gtktypeutils.h
@@ -223,7 +223,7 @@ struct _GtkTypeInfo
};
GtkType gtk_type_unique (GtkType parent_type,
const GtkTypeInfo *gtkinfo);
-gpointer gtk_type_class (GtkType type);
+gpointer gtk_type_class (GtkType type) G_GNUC_CONST;
gpointer gtk_type_new (GtkType type);