>>>>> "dM" == der Mouse <mouse@Collatz.McRCIM.McGill.EDU> writes:

dM> Think of it as though /emul/xxxx were union-mounted underneath the real
dM> root, but only for accesses by programs running in COMPAT_xxxx mode.
dM> (Okay, that's an oversimplification, but it perhaps gives some idea.)

Actually, you could probably make this a cleaner setup by union-mounting
the real root underneath the /emul/xxx area, and then chroot() the
emulated process to the unioned area (just don't try to look at
/emul/xxx/emul/xxx!)

==John