SSL for an AIX 5.x client - possible?

I am having difficulty getting SSL-enabled Postgres client libs working on
AIX with either vac or gcc using OpenSSL. SSL from other UNIX flavors has
not been a problem.

Versions in question:

AIX 5.1 on power4

OpenSSL 0.9.8

Postgres 8.1.3

I am not that familiar (yet) with the configure and build part of Postgres,
but I suspect this problem really comes down to how openssl gives up trying
to build a shared lib version on AIX, and postgres must (?) dynamically link
to openssl. (Incidentally, mysql has the same problem on AIX it would
seem, again said with a question mark.)

Any advice, guidance or links on how I might get SSL working from AIX
clients would be greatly appreciated. Googling around has not yielded
anything that's put me on the right track.

Thanks in advance,
Paul