--- cblas-reference-20161223.ebuild	2017-06-01 19:43:59.000000000 +0900
+++ cblas-reference-20161223-r1.ebuild	2017-06-01 18:42:54.000000000 +0900
@@ -74,6 +74,13 @@
 	rmdir "${ED}/usr/$(get_libdir)/pkgconfig" || die
 	rmdir "${ED}/usr/include" || die
 
+	if [[ ${CHOST} == *-darwin* ]]; then
+		lib_dir="/usr/$(get_libdir)/blas/reference"
+		for l in "${ED}${lib_dir}"/*.dylib; do
+			install_name_tool -id "${EPREFIX#/}${lib_dir}/${l##*/}" "${l}"
+		done
+	fi
+
 	eselect cblas add $(get_libdir) "${T}"/eselect.cblas.reference ${ESELECT_PROF}
 }