[metapost] metapost and groff

[Doug McIlroy]

I am having trouble resurrecting some 20-year-old MetaPost
code that contains eqn formulas in labels.  As far as I
can tell mpost -T doesn't work as described in
www.tug.org/tutorial/mp/grdemo-doc.pdf. I find
information posted to this list by Werner Lembert and
others in 2005 and 2006 that seems to confirm my
difficulty, but nothing since.

Before I bore anybody with details, let me ask,
am I basically out of luck?

Doug McIlroy