res_search is missing from Ultrix 3.0 and 3.1

[John Dotts Hagan]

I can't rebuild sendmail from new Berkeley sources, since it calls upon
res_search, which is in the bind 4.8 package from Berkeley, but is not in
the Ultrix distribution.  It seems all the other name server library routines
are included!

What was it left out?  Will it be added in a newer version?  Does anyone know
what version of Berkeley bind is being distributed with Ultrix?

--Kid.