2008-05-31  Kristian Rietveld  <kris@imendio.com>

	Bug 530146 - Setting non-string tooltip with
	gtk_tree_view_set_tooltip_column() segfaults

	* gtk/gtktreeview.c (gtk_tree_view_set_tooltip_query_cb): use
	gtk_tree_model_get_value() and explicitly transform the value to a
	string before setting it as tooltip.


svn path=/trunk/; revision=20261