- ;; stuff for byte compilation. This works only in the target system,
- ;; because fundamental BYTE-FUNCTION-OR-CLOSURE types are implemented
- ;; as nonportable FUNCALLABLE-INSTANCEs.
+ ;; stuff for byte compilation. Note that although byte code is
+ ;; "portable", it'd be hard to make it work on the cross-compilation
+ ;; host, because fundamental BYTE-FUNCTION-OR-CLOSURE types are
+ ;; implemented as FUNCALLABLE-INSTANCEs, and it's not obvious
+ ;; how to emulate those in a vanilla ANSI Common Lisp.