I get 0 on both,

$ uname -a
Linux mercury 2.4.23 #1 Sat Jan 3 14:25:29 EST 2004 i686 unknown
$ perl -v

This is perl, v5.8.4 built for i686-linux
[download]

and

$ perl -v

This is perl, v5.9.2 built for i686-linux-thread-multi-64int-ld
[download]

on the same machine.

The kernel and both perls were built from source.