- Update to 0.5.9
- Add diff to remove ldconfig, which is GNU/Linux compatible
- Add diff to explicitly check for threaded Boehm GC to avoid breaking when
  both threaded, and non-threaded versions are installed


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@371167 35697150-7ecd-e111-bb59-0022644237b5