Though media-fonts/arphicfonts-0.1-r2 has ppc64 keyword, ghostscript (implicitly) depends on arphicfonts-0.1-r1. Please add ppc64 keyword to 0.1-r1, too. After that I'll adjust ghostscript ebuilds to use appropriate version of fonts. Thanks in advance.
thanks Mamoru!
stick a fork in it!@