Building LDAP extension on NetWare (second attempt)

Now, I have LDAP extension built as a separate binary. I'm not able to load it using dl() with mod_php since it says that dl() is not supported for multithreaded Web servers. When I try to load it using dl() on the command-line (CGI) version of PHP, it says that PHP_LDAP.NLM is not a valid PHP library. My doubt is that I am not exporting the right stuff out of the binary by which PHP can hook into tit. What do I need to export? Is there something standard for every extension that is dynamically loaded? Thanx in advance, Venkat