PkgSrc changes:
  - Updating package to 3.17

Upstream changes:
3.17 - 2009-03-15

    * rework PTR macros, fixing PTR2ul for 5.6.1
      (fixes CPAN #39802, thanks to CHOCOLATE for
      reporting and providing a patch)
    * added support for the following API
        PTR2nat
      (second part of fix for CPAN #39802)

(sno)