Ack. Very good question. Never tried that. I seem to
have aquired a foot in my mouth.
You can get to any core function through CORE. For
instance if you override print you can still call the
real one as CORE::print. OTOH that does seem to be hacked
in at a low level. I cannot figure out how to find it.
Normally, of course, your %package:: would work. But not
in this case. :-(
BTW if you are curious, perlsub says that if you override a
function in CORE::GLOBAL you will override the built-in in
all namespaces. I didn't know that. I don't think that
I particularly wanted to either...