Without cairo-quartz-font.pc installed to /usr/lib/pkgconfig, applications like gnumeric display characters as mere rectangles on OSX aqua environment. This was reported in MacPorts and then upstream cairo ML: http://trac.macports.org/ticket/15209 http://lists.cairographics.org/archives/cairo/2008-June/014299.htm Since the upstream has already fixed it in developing source, a quick hack for ebuild suffices; a patch follows.
Created attachment 163745 [details, diff] patch against cairo-1.6.4-r1.ebuild
Committed. From my reading it look like 1.6.6 will be released in the next week or so. Thanks for the patch.