Expect on Pyramid?

[Tom Adams - 235-7459]

Has anyone ported expect as described in:
"expect: Curing Those Uncontrollable Fits of Interaction" by Don
Libes, Proceedings of the Summer 1990 USENIX Conference, Anaheim,
California, June 11-15, 1990.

to the Pyramid?  I've gotten it compiled, but spawn doesn't work.
I'm on 5.0d on an MIS 4/2 (but had similar problems under 4.4c).
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