--- mmix-20110605.ebuild	2012-03-10 18:09:35.000000000 +0100
+++ mmix-20131017.ebuild	2013-12-07 16:29:45.000000000 +0100
@@ -8,14 +8,14 @@
 
 DESCRIPTION="Donald Knuth's MMIX Assembler and Simulator."
 HOMEPAGE="http://www-cs-faculty.stanford.edu/~knuth/mmix.html"
-SRC_URI="http://www-cs-faculty.stanford.edu/~knuth/programs/${P}.tar.gz"
+SRC_URI="http://www-cs-faculty.stanford.edu/~knuth/programs/${P}.tgz"
 
 DEPEND="|| ( >=dev-util/cweb-3.63 virtual/tex-base )"
 RDEPEND=""
 
 SLOT="0"
 LICENSE="mmix"
-KEYWORDS="~amd64 ppc x86"
+KEYWORDS="~amd64 ~x86"
 IUSE="doc"
 
 S="${WORKDIR}"