ldap on native win32

Ldap is available on many win32 platforms, but unfortunately not on all. Compiling with ldap is ok on nt, but xemacs.exe will fail to load on platforms lacking Wldap32.dll . What would be an acceptable solution to enable ldap on win32 platforms that have this dll ? One immediate solution is to encapsulate calls to basic ldap_* C functions, and let them return a default value. But this will lead to ldap functions being available at the elisp level, but doing nothing at the C level. Another answer would be to put the ldap stuff in a module, but the modules are not yet supported on native win32. Any idea on this subject ? -- Fabrice