Desktop file and icon search path?

[Leon <sdl web gmail com>]

Hi all,

I have been looking forward to a solution for the following question
over half a year, so your help will be much appreciated. I feel that
it can be done since SuSE has done it.

I have software installed in /opt with their desktop files and icons
put into /opt/share/applications and /opt/share/pixmaps. How can I
tell gnome to incorporate them i.e. add /opt/share/applications to the
desktop file search path and /opt/share/pixmaps to the icon search
path?

Thank you.
-- 
Leon