[racket] Portability of .zo files

(I'm playing with some optimizations, so this is a theoretical
question to understand some parts of the Racket implementation, not a
real life problem.)

Can I move a .zo file from a machine that has extflonum enabled to a
machine that has extflonum disabled?

Can I move a .zo file from a machine that has extflonum disabled to a
machine that has extflonum enabled?

More generally, when is it possible to copy .zo files form a computer
to another computer, and expect that it will work fine?

(I had problems with some absolute paths before, so I try to not copy
.zo files.)

Gustavo