As no-one replied, I'll put in my 0.02 euros.

AFAK you can compile perl to use 64bit numbers, check perl -V for use64bitint and use64bitall. Whether or not this will play nice with non-standard XS modules depends (maybe even per platform). On my 32 bit linux machine compiling with long numbers will warn a lot when compiling XS modules.

Then again, the details of all this are not very clear to me,
YMMV.

Joost

-- 
#!/usr/bin/perl -np
BEGIN{@ARGV=$0}s(^([^=].*)|=)()s;
=Just another perl hacker\
[download]