No idea why OpenSSL would need to load dynamic libraries. Avoid linking error
on Linux when linking OpenSSL-using stuff (at least libpostgresql-sdbc-impl)
as we don't use -ldl when linking it. Sure, we could instead add -ldl to the
libraries used by libpostgresql-sdbc-impl I guess, but let's see first if this
works.

Change-Id: Ia4e5c6b8b08c127f378e1578de93c1fd5b213016