perl::Math::MPC (perl interface to the MPC library)

perl::Math::MPC is a multiple precision complex number module utilising
the MPC library. Basically, this module simply wraps the 'mpc'
complex number functions provided by that library.

For tests only, optional deps:
perl-Math-Complex_C
perl-Math-Complex_C-L
perl-Math-Complex_C-Q
perl-Math-GMPf
perl-Test-Pod