I have installed part of this OCaml port
http://home.arcor.de/chr_bauer/ocaml-aix.html
on a computer running on AIX. It seems that everything built correctly 
except ocamlopt. So I have ocamlrun and standard library and this should 
be enough for bytecode to run.

I have to build the bytecode on a different machine (because it's 
difficult to do on AIX). I believe this shouldn't induce any problems.

Trivial bytecode executes correctly regardless where it is created.

I set LIBPATH to point to ocaml/stublibs and try running some bytecode 
uning Unix module. This results in:
Fatal error: unknown C primitive `unix_getsockopt_bool'

If I compile simple "let _ = Unix.sleep 1" on the target machine, I get 
bytecode that causes ocamlrun to crash with:
Illegal instruction (core dumped)

Does anybody have an idea for workaround? Some understanding what's 
going on?

I'm using AIX 5.3

Dawid