net-dns/knot: missing dep + mips compatibility + enhanced security with systemd

Add dev-python/lmdb, thanks to Karl-Johan Karlson for the report
	Enhance security with systemd service file thanks to hexum
	Integrate MIPS compatibility patch, upstreamed: 5cf2d1acf8
	Also fix QA issue with /var/run/knot created by make install

Gentoo-Bug: #606644
Gentoo-Bug: #623252

net-dns/knot/knot-2.5.3-r1.ebuild

@@ -0,0 +1,92 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+inherit eutils systemd user
+
+DESCRIPTION="High-performance authoritative-only DNS server"
+HOMEPAGE="http://www.knot-dns.cz/"
+SRC_URI="https://secure.nic.cz/files/knot-dns/${P/_/-}.tar.xz"
+
+LICENSE="GPL-3"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+
+KNOT_MODULES="+dnsproxy dnstap +noudp +onlinesign rosedb +rrl +stats +synthrecord +whoami"
+IUSE="doc caps +fastparser idn systemd +utils ${KNOT_MODULES}"
+
+RDEPEND="
+	>=net-libs/gnutls-3.3:=
+	>=dev-db/lmdb-0.9.15
+	dev-python/lmdb
+	>=dev-libs/userspace-rcu-0.5.4
+	caps? ( >=sys-libs/libcap-ng-0.6.4 )
+	dnstap? (
+		dev-libs/fstrm
+		dev-libs/protobuf-c
+	)
+	idn? ( || ( net-dns/libidn >=net-dns/libidn2-2.0.0 ) )
+	dev-libs/libedit
+	systemd? ( >=sys-apps/systemd-229 )
+"
+DEPEND="${RDEPEND}
+	virtual/pkgconfig
+	doc? ( dev-python/sphinx )
+"
+
+S="${WORKDIR}/${P/_/-}"
+
+PATCHES=(
+	"${FILESDIR}/${PV}-link-with-libatomic.patch"
+)
+
+src_configure() {
+	local my_conf=""
+	for u in ${KNOT_MODULES//+/}; do
+		my_conf+="$(use_with $u module-$u) "
+	done
+
+	econf \
+		--with-storage="${EPREFIX}/var/lib/${PN}" \
+		--with-rundir="${EPREFIX}/var/run/${PN}" \
+		$(use_enable fastparser) \
+		$(use_enable dnstap) \
+		$(use_enable doc documentation) \
+		$(use_enable utils utilities) \
+		$(use_enable systemd) \
+		$(use_with idn libidn) \
+		${my_conf}
+}
+
+src_compile() {
+	default
+
+	if use doc; then
+		emake -C doc html
+		HTML_DOCS=( doc/_build/html/{*.html,*.js,_sources,_static} )
+	fi
+}
+
+src_test() {
+	emake check
+}
+
+src_install() {
+	default
+
+	rmdir "${D}/var/run/${PN}" "${D}/var/run/"
+	keepdir /var/lib/${PN}
+
+	newinitd "${FILESDIR}/knot.init" knot
+	if use systemd; then
+		systemd_newunit "${FILESDIR}/knot-1.service" knot
+	fi
+
+	prune_libtool_files
+}
+
+pkg_postinst() {
+	enewgroup knot 53
+	enewuser knot 53 -1 /var/lib/knot knot
+}