--- /usr/portage/dev-lang/moarvm/moarvm-2014.09.ebuild	2014-09-19 14:59:56.000000000 +0900
+++ ./dev-lang/moarvm/moarvm-2014.09.ebuild	2014-09-21 06:49:17.642437532 +0900
@@ -23,9 +23,5 @@
 S="${WORKDIR}/MoarVM-${PV}"
 
 src_configure() {
-	perl Configure.pl --prefix="${D}/usr"|| die
-}
-
-src_install() {
-	emake install
+	perl Configure.pl --prefix="${EPREFIX}"/usr || die
 }