cygport chases symlink loop infintely

[Warren Young <warren at etr-usa dot com>]

There's something about the way I have one of my development systems set 
up that causes Cygport to chase a symlink loop infinitely in the "Fixing 
libtool modules:" step of "cygport install".

It apparently has something to do with the fact that the source for the 
package in question lives under /usr/local/src, and I've symlinked src 
into my home directory so I can "cd ~/src/somepackage".

If instead I "cd /usr/local/src/somepackage" and "cygport install" from 
there, the install process completes successfully.

I've posted the relevant snippet of cygport's output when running under 
bash -x here: http://pastebin.com/gLqgydPA

Notice the "dlname=..." and "readlink..." line pairs.  Another "../" 
gets added each time through the loop.

The problem can't be as simple as I've diagnosed it so far, because I 
symlink /usr/local/src into my home directory on every one of my 
systems, and I built a Cygport package on another of these systems just 
a few days ago.  So, there's got to be something more that's odd about 
this particular build machine, but I don't see it.

I have a workaround for now, but it'd be nice to be able to keep cd'ing 
through my ~/src symlink.