[Openmcl-devel] slet/rlet with C functions?

[Phil]

I'm trying to figure out how to use slet/rlet with a C function call  
such as:

(ccl::slet* ((r (ccl::ns-make-rect 0.0 0.0 100.0 100.0))
		   (r2 (#_CGRectIntegral r))))

but of course slet doesn't know how to deal with #_CGRectIntegral and  
I haven't had any better luck with rlet, so... is there currently a  
comparable way of dealing with structures defined via the interface  
files and C functions?