[cffi-devel] :uint64 ... how to handle on non-supporting platform ?

Hi - thanks to Louis for answering my last question about function pointers. I now have a new challenge: How to handle :uint64 when I using AllegroCL 8.1 express edition on Mac OS X when this implementation is not supporting :unsigned-long-long ? I do have: (defcfun ("amqp_basic_ack" %amqp-basic-ack) :int (state amqp-connection-state-t) (channel amqp-channel-t) (delivery-tag :uint64) ;;; <<<<<< ---- this is my problem ... (multiple amqp-boolean-t)) Could I get around this with a clever padding of the 'multiple' argument ? Thanks for any advice! Cheers Frank