Is there a way to generate a cross reference listing for a c/c++ program using gcc?

[Paul Albrecht]

William Beebe writes:

>
>... If you want what LXR provides (and yes, I looked it up) then get
Doxygen....
>

Not only does Doxygen not meet my requirements, but also it doesn't make
much sense to me for each cross-reference tool to implement its own source
code parser and symbol database when the symbol information could be
(optionally)
output by the compiler and subsequently processed into a database file by a
utility program. But, I guess we'll just have to agree to disagree.

>
>... why don't you write that cross-reference output feature?
>

Is anyone else planning on or interested in adding a symbol cross-reference
option to gcc for the "C" programming language? Are there any objections to
adding a symbol cross-reference option to gcc for the "C" programming
language?