[gtk+] Fix up gtk_builder_expose_object addition

[Matthias Clasen <matthiasc src gnome org>]

commit 099a2b04a29cb5e83af302ccc66d1612eb7c5a11
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Dec 17 22:18:06 2012 -0500

    Fix up gtk_builder_expose_object addition
    
    It needs an AVAILABLE_IN annotation in the header, and it
    needs to be added to the symbols list.

 gtk/gtk.symbols  |    1 +
 gtk/gtkbuilder.h |    1 +
 2 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtk.symbols b/gtk/gtk.symbols
index 0e4eee4..87041fa 100644
--- a/gtk/gtk.symbols
+++ b/gtk/gtk.symbols
@@ -338,6 +338,7 @@ gtk_builder_connect_signals
 gtk_builder_connect_signals_full
 gtk_builder_error_get_type
 gtk_builder_error_quark
+gtk_builder_expose_object
 gtk_builder_get_object
 gtk_builder_get_objects
 gtk_builder_get_translation_domain
diff --git a/gtk/gtkbuilder.h b/gtk/gtkbuilder.h
index a10359b..e705467 100644
--- a/gtk/gtkbuilder.h
+++ b/gtk/gtkbuilder.h
@@ -141,6 +141,7 @@ guint        gtk_builder_add_objects_from_string (GtkBuilder    *builder,
 GObject*     gtk_builder_get_object              (GtkBuilder    *builder,
                                                   const gchar   *name);
 GSList*      gtk_builder_get_objects             (GtkBuilder    *builder);
+GDK_AVAILABLE_IN_3_8
 void         gtk_builder_expose_object           (GtkBuilder    *builder,
                                                   const gchar   *name,
                                                   GObject       *object);