sys-libs/libudev-zero: Pass LIBDIR to emake for glibc systems

Signed-off-by: Haelwenn (lanodan) Monnier <contact@hacktivis.me>

sys-libs/libudev-zero/libudev-zero-1.0.3.ebuild

@@ -23,6 +23,10 @@ src_compile() {
 }
 
 src_install() {
-	emake DESTDIR="${D}" PREFIX=/usr install-shared
-	use static-libs && emake DESTDIR="${D}" PREFIX=/usr install-static
+	local makeflags=(
+		DESTDIR="${D}" PREFIX=/usr LIBDIR=/usr/"$(get_libdir)"
+	)
+
+	emake "${makeflags[@]}" install-shared
+	use static-libs && emake "${makeflags[@]}" install-static
 }