probs. with sys5 curses

[Operator]

Hello. I wonder if any of you have had any luck with Sun OS 4.0.3 curses,
System V version. I've apparently found lots of bugs using this to compile
a system V program "pcomm". In desperation, I gathered the BSD curses
source from uunet and compiled a test library using /usr/5bin/cc.
Interestingly, some of the bugs dissappeared while other new ones sprang
up. Your thoughts ?