Mainly done by pkglint, manually reviewed and improved in some few cases.
(presumably only under Mac OS X Mountain Lion). "Xquarty" simply doesn't print out anything if you run it with "-version". This avoids a lot of warning messages from "bmake" while building packages that use X11.
to pkgtools/x11-links Many thanks to Ryo ONODERA
Bump version to 0.64 and depend on it.