I don't have a ppc system to test this on, but I can't imagine that the ebuild would work as it is in portage currently. The attached ebuild adds ~x86 and ~amd64 and changes ${S} to the correct format. The new Makefile-1.3.diff is now in unified format, as epatch didn't like the old one.
Created attachment 26954 [details, diff] ebuild patch for x86, amd64, fixes ${S}
Created attachment 26955 [details, diff] new Makefile patch in unified format
Created attachment 26956 [details, diff] ebuild patch for x86, amd64, fixes ${S}, replaces hardcoded version I missed a hardcoded 1_3 in SRC_URI in the old patch. I'm also madly in love with the 'add attachment' form.
Don't be fooled by the fact that it has "chess" in the name. Games doesn't maintain it.
bug-wranglers, please find someone else to look at this bug as i don't maintain this package.
Why is this bug assigned to amd64 ? Please find someone to maintain, but not us. We have enough work to do.
lv, this bug adds functionality of special interest to amd64, I'd like you guys to look into it, please
...later