Finding Circular Dependencies

[David A. Greene]

Make is complaining about a circular dependency but I don't see it in my
Makefile.  Is there any easy way to figure out where the problem is?  I
find -d output to be a little overwhelming and not all that useful.

If I eliminate the dependency it complains about, make claims it doesn't
know how to build the target of the dependency I eliminated.

                                              -Dave