gtkctree bug

[Tsurng-Chen Chern <maxchern corp earthlink net>]

GTK+ version : 1.1.0 (gtk+-SNAP-980723.tar.gz to be exact)

My System : Linux 2.1.109 and Solaris 2.6

Bug: ** ERROR **: sigsegv caught
      when try to sort ctree widget, this can be reproduced
      with testgtk program.

Fix: gtkctree.c in function gtk_ctree_is_visible()
      have to make sure that node is not NULL before we do
      work = GTK_CTREE_ROW(node);
      and everything else.

-- 

Max Chern, Senior Software Engineer/DBA  |  Voice: 626-296-5014
EarthLink Network, Inc.                  |  Fax:   626-296-5113
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