Notable changes:
- DragonFly support (thanks to asmodai and joerg)
- Add DONT_ENABLE_IPV6 knob (turned into pkgsrc "inet6" option)
- Many small improvements and fixes
> removed the pre-build target and added a BUILDLINK_PASSTHRU_RPATHDIRS
> line, jlam told me about that trick.
The jdk14 package can be build as non-root user now.
