Oh. I didn't realize you couldn't find that rev. I'm not sure but I'd look in the various source distributions at ftp://ftp.cpan.org/pub/CPAN/src/5.0/ likely in the devel/ directory to see about finding something betweeen. If doesn't do it then I'd just have to ask on perl5-porters for assistance.

__SIG__
printf "You are here %08x\n", unpack "L!", unpack "P4", pack "L!", B::svref_2object(sub{})->OUTSIDE