I knew it was libtool!

[walt <wa1ter@xxxxxxxxxxxxx>]

Because I don't know enough about libtool to debug it, I backed out
the new libtool override and reinstalled the original libtool15 port
just to test a theory.

Now I can build the libgnome port without error.  (I recently posted
that libgnome would not compile because of a missing -pthread flag,
and based on pure speculation I blamed libtool.  I take no pleasure
in proving myself correct, however ;o)

So -- can anyone reproduce my findings or (much better) figure out
what's wrong?