--- /usr/portage/dev-libs/libev/libev-4.15.ebuild	2013-09-26 21:31:09.000000000 +0400
+++ libev-4.15-r1.ebuild	2013-12-21 09:47:17.671755294 +0400
@@ -4,7 +4,7 @@
 
 EAPI=5
 
-inherit autotools eutils multilib
+inherit autotools-multilib
 
 DESCRIPTION="A high-performance event loop/event model with lots of feature"
 HOMEPAGE="http://software.schmorp.de/pkg/libev.html"
@@ -22,30 +22,33 @@
 
 DOCS=( Changes README )
 
-src_prepare() {
-	sed -i -e "/^include_HEADERS/s/ event.h//" Makefile.am || die
-
-	# bug #411847
-	epatch "${FILESDIR}/${PN}-pc.patch"
-
-	eautoreconf
-}
+# bug #411847
+PATCHES=( "${FILESDIR}"/${PN}-pc.patch "${FILESDIR}"/${P}-gentoo.patch )
+AUTOTOOLS_AUTORECONF=1
 
 src_configure() {
-	econf \
-		--disable-maintainer-mode \
+	local myeconfargs=(
+		--disable-maintainer-mode
 		$(use_enable static-libs static)
+	)
+	autotools-multilib_src_configure
 }
 
 src_install() {
-	default
+	autotools-multilib_src_install
 	use static-libs || prune_libtool_files
 }
 
 pkg_preinst() {
+	keep_old_lib() {
 	preserve_old_lib /usr/$(get_libdir)/libev.so.3.0.0
+	}
+	multilib_foreach_abi keep_old_lib
 }
 
 pkg_postinst() {
+	keep_old_lib() {
 	preserve_old_lib_notify /usr/$(get_libdir)/libev.so.3.0.0
+	}
+	multilib_foreach_abi keep_old_lib
 }