Looking for program to determine include file nesting

[KOMARNITSKY ALEK O]

I'm writing some C++ code and am interested in programs that generate:
	o. who-includes-who (wiw) information
	o. who-is-included-by-who (wiibw) information
	o. include nesting information (prints out include tree)
	o. include nesting reduction tools (returns set of includes
		that minimizes nesting) 
        o. cpp -M is close, but I hope someone has taken it further

Hopefully, this subject (which I'm sure has been visited before) will not
generate the same bandwith as the C source-code line counter.   :-)

I don't keep up on several of the groups I've posted this to, so pls
respond via E-mail.  FYI: I didn't see it in the FAQ in comp.lang.{c,c++}

Thanx in advance.

Alek Komarnitsky
komarnit at tramp.colorado.edu