
Renamed external parameter USE_SSPI = yes/no to ENABLE_SSPI = yes/no. Backwards compatible change: USE_SSPI can still be passed as external parameter with yes/no value as long as ENABLE_SSPI is not given. USE_x defines are passed around with true/false values internally, USE_SSPI is now aligned to this approach, but still accepts external values yes/no being passed, just like the other defines.