Is it possible to compile FreeRadius without OpenSSL?

As soon as I select the package FreeRadius, it compiles SASL2, OpenSSL and OpenLDAP...
When I remove the "+openssl" from the package makefile it does not auto-select the OpenSSL + dependencies anymore though, but it still compiles them somehow...

Where can I take a look to turn them off?

Another thing is that FreeRadius wants "ltdl.h" (which is in building_dir/usr/include/ltdl.h), what do I need to do to make it compile correctly?

Thanks