x11-wm/xpra-0.4.1 depends on dev-python/cython but, with cython-0.14, I get "ERROR: Your version of Cython is too old to build this package" so I guess this ebuild needs to depend on a higher version of cython (compiled relatively "well" with cython-0.16, which is stable)
please do not confuse ">dev-python/cython-0.16" and ">=dev-python/cython-0.16"
+ 04 Aug 2012; Michael Weber <xmw@gentoo.org> -xpra-0.4.0.ebuild, + xpra-0.4.1.ebuild: + Define cython dependency (bug 429624, thanks igel), drop old. +