The build system of SpamAssassin has changed in 2.60-RC4; the old ebuild won't work anymore. I'll attach a patch against it to make it work again. Cheers, Malte P.S.: I also volunteer as future maintainer for that ebuild :o)
there is a real 2.60 release of spamassassin now... no more rc releases needed. *** This bug has been marked as a duplicate of 29404 ***