etags

[Kevin Dziulko]

Hello

I am looking for a way to get a list of all user defined #define's in some 
C code that actaully get used.  I was reading up a little on etags, and I 
think it might help me with this.  Has anyone done or seen anything close 
to this?

Example:
#include <stdio.h>
#define MSG1 "Hello, world!"
#define CONST1 42

int main ()
{
    (void) printf("\n%s\n", MSG1);

    return 0;
}

/////////////////

Idealy, I would want something to say:

Line 7: MSG1


Perhaps this isn't the best place to post this. If you know a better 
place, please let me know.

Thanks a lot!
Kevin