--- /dev/null
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+ <herd>ml</herd>
+ <herd>proxy-maintainers</herd>
+ <maintainer>
+ <email>tomboy64@sina.cn</email>
+ </maintainer>
+ <use>
+ <flag name="async">support for asynchronous execution</flag>
+ <flag name="lwt">enable threads via lwt</flag>
+ </use>
+</pkgmetadata>
--- /dev/null
+# Copyright 1999-2015 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=5
+OASIS_BUILD_DOCS=1
+OASIS_BUILD_TESTS=1
+
+inherit oasis
+
+DESCRIPTION="A pure OCaml implementation of the DNS protocol"
+HOMEPAGE="https://github.com/mirage/ocaml-dns https://mirage.io"
+SRC_URI="https://github.com/mirage/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="LGPL-2 LGPL-2.1-with-linking-exception ISC"
+SLOT="0/${PV}"
+KEYWORDS="~amd64"
+IUSE="async +lwt"
+
+RDEPEND="
+ async? ( >=dev-ml/async-112.24.00:= )
+ lwt? ( >=dev-ml/lwt-2.4.7:=
+ dev-ml/ocaml-cstruct:=[lwt(-)] )
+ >=dev-lang/ocaml-4:=
+ dev-ml/cmdliner:=
+ dev-ml/mirage-profile:=
+ >=dev-ml/ocaml-base64-2.0.0:=
+ >=dev-ml/ocaml-cstruct-1.0.1:=
+ >=dev-ml/ocaml-ipaddr-2.6.0:=
+ dev-ml/ocaml-re:=
+ >=dev-ml/ocaml-uri-1.7.0:=
+ !<dev-ml/mirage-types-1.2.0
+ !dev-ml/odns
+"
+DEPEND="
+ test? ( dev-ml/ounit
+ dev-ml/ocaml-pcap )
+ ${RDEPEND}
+"
+
+src_configure() {
+ oasis_configure_opts="
+ $(use_enable async)
+ $(use_enable lwt)
+ $(use_enable test nettests)
+ " oasis_src_configure
+}
+
+DOCS=( CHANGES README.md TODO.md )