(error "Method return type ~A must be `void'" (c-type-subtype type)))
(unless (argument-lists-compatible-p (c-function-arguments msgtype)
(c-function-arguments type))
(error "Method return type ~A must be `void'" (c-type-subtype type)))
(unless (argument-lists-compatible-p (c-function-arguments msgtype)
(c-function-arguments type))