--- /dev/null
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+<maintainer type="project">
+ <email>ml@gentoo.org</email>
+ <name>Gentoo ML Project</name>
+</maintainer>
+</pkgmetadata>
--- /dev/null
+# Copyright 1999-2015 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI="5"
+
+inherit oasis
+
+DESCRIPTION="Standard Jane Street ppx rewriters"
+HOMEPAGE="http://www.janestreet.com/ocaml"
+SRC_URI="http://ocaml.janestreet.com/ocaml-core/${PV%.*}/files/${P}.tar.gz"
+
+LICENSE="Apache-2.0"
+SLOT="0/${PV}"
+KEYWORDS="~amd64"
+IUSE=""
+
+DEPEND="dev-ml/ppx_tools:=
+ dev-ml/ppx_assert:=
+ dev-ml/ppx_bench:=
+ dev-ml/ppx_bin_prot:=
+ dev-ml/ppx_compare:=
+ dev-ml/ppx_custom_printf:=
+ dev-ml/ppx_driver:=
+ dev-ml/ppx_enumerate:=
+ dev-ml/ppx_expect:=
+ dev-ml/ppx_fail:=
+ dev-ml/ppx_fields_conv:=
+ dev-ml/ppx_here:=
+ dev-ml/ppx_inline_test:=
+ dev-ml/ppx_let:=
+ dev-ml/ppx_pipebang:=
+ dev-ml/ppx_sexp_conv:=
+ dev-ml/ppx_sexp_message:=
+ dev-ml/ppx_sexp_value:=
+ dev-ml/ppx_type_conv:=
+ dev-ml/ppx_typerep_conv:=
+ dev-ml/ppx_variants_conv:=
+"
+RDEPEND="${DEPEND}"
+DEPEND="${DEPEND} dev-ml/opam"
+
+src_configure() {
+ emake setup.exe
+ OASIS_SETUP_COMMAND="./setup.exe" oasis_src_configure
+}
+
+src_compile() {
+ emake
+}
+
+src_install() {
+ opam-installer -i \
+ --prefix="${ED}/usr" \
+ --libdir="${D}/$(ocamlc -where)" \
+ --docdir="${ED}/usr/share/doc/${PF}" \
+ ${PN}.install || die
+ dodoc README.md
+}