If dev-python/imaging is not installed at runtime, xasy fails to run with the following error message: An error ocurred loading the required PIL library. Please install http://effbot.org/downloads/Imaging-1.1.6.tar.gz after applying the patch http://asymptote.svn.sourceforge.net/viewvc/asymptote/trunk/asymptote/patches/TkAlpha-Imaging-1.1.6.patch Emerging dev-python/imaging-1.1.6 with the tk flag enabled solves the problem. I hadn't to apply any patch.
sorry, but I decided to retire my dev-account and therefore have to give up maintaining asymptote...
Thanks. In cvs.