http://zenwalk.pinguix.com/user-accounts/bip/EXTRA/d/Date-Calc/ZENBUILD
http://zenwalk.pinguix.com/user-accounts/bip/EXTRA/d/Date-Calc/build-Date-Calc.sh
http://search.cpan.org/CPAN/authors/id/S/ST/STBEY/Date-Calc-6.3.tar.gz
