--- a/i3-4.13-r1.ebuild	2017-02-07 22:47:59.085440454 +0100
+++ b/i3-4.13-r2.ebuild	2017-02-13 21:29:28.461478108 +0100
@@ -12,8 +12,8 @@ SRC_URI="http://i3wm.org/downloads/${P}.
 
 LICENSE="BSD"
 SLOT="0"
-KEYWORDS="amd64 x86"
-IUSE="doc"
+KEYWORDS="~amd64 ~x86"
+IUSE="doc elibc_musl"
 
 CDEPEND="dev-libs/libev
 	dev-libs/libpcre
@@ -40,6 +40,9 @@ DOCS=( RELEASE-NOTES-${PV} )
 
 src_prepare() {
+	if use elibc_musl; then
+		eapply "${FILESDIR}/${PN}-4.11-musl.patch"  # patch from alpine linux
+	fi
 	default
 	if ! use doc ; then
 		sed -e '/AC_PATH_PROG(\[PATH_ASCIIDOC/d' -i configure.ac || die
 		eautoreconf