bignum 0.22

on Perl CPAN

make the pragmas lexical, so that "no bigint;" etc. works

make "use bigint; use bignum;" not warn about redefining "inf" and "NaN"
This also means a "use bigint;" will not override any already existing
"inf" or "NaN" routine

require Math::BigInt v1.87

fix #27059: t/option_l.t fails

on Perl 5.9.4 or later: "overload" hex() and oct() with lexical routines
that also handle arbitrary big integers

for all Perls: make "use bigint qw/hex oct/" export global hex() and oct()
routines that work with big integers

make bignum.pm and bigrat.pm re-use code from bigint.pm

add exportable bpi() and bexp() methods

add exportable PI and e constants