+(defmacro define-call-internally (lisp-name c-name return-type error-predicate &rest arguments)
+ (if (sb-fasl::foreign-symbol-address-as-integer-or-nil
+ (sb-vm:extern-alien-name c-name))
+ `(progn
+ (declaim (inline ,lisp-name))
+ (defun ,lisp-name ,(mapcar #'car arguments)
+ (let ((r (alien-funcall
+ (extern-alien
+ ,c-name
+ (function ,return-type
+ ,@(mapcar
+ (lambda (x)
+ (gethash (cadr x) *designator-types* (cadr x)))
+ arguments)))
+ ,@(mapcar (lambda (x)
+ (if (nth-value 1 (gethash (cadr x) *designator-types*))
+ `(,(intern (symbol-name (cadr x)) :sb-posix)
+ ,(car x))
+ (car x)))
+ arguments))))
+ (if (,error-predicate r) (syscall-error) r))))
+ `(sb-int:style-warn "Didn't find definition for ~S" ,c-name)))
+