dev-db/postgresql: change systemd unit type to notify.

Add systemd USE flag to control required configure option and dependency.

Default events that used to be written to postmaster.log will now be written to
the location specified by DefaultStandardOutput and DefaultStandardError in
system.conf.

Package-Manager: Portage-2.3.5, Repoman-2.3.2
Closes: https://github.com/gentoo/gentoo/pull/4557

3 files changed, 556 insertions, 7 deletions

diff --git a/dev-db/postgresql/files/postgresql.service-9.6 b/dev-db/postgresql/files/postgresql.service-9.6
new file mode 100644
index 000000000000..89ec2d5cf7c0
--- /dev/null
+++ b/dev-db/postgresql/files/postgresql.service-9.6
@@ -0,0 +1,56 @@
+# It's not recommended to modify this file in-place, because it will be
+# overwritten during package upgrades. If you want to customize, the
+# best way is to create file
+# "/etc/systemd/system/postgresql-@SLOT@.service.d/*.conf"
+# containing your changes
+
+# For example, if you want to change the server's port number to 5433,
+# create a file named
+# "/etc/systemd/system/postgresql-@SLOT@.service.d/port.conf"
+# containing:
+#       [Service]
+#       Environment=PGPORT=5433
+# This will override the setting appearing below.
+
+[Unit]
+Description=PostgreSQL database server
+After=network.target
+
+[Service]
+Type=notify
+
+User=postgres
+Group=postgres
+
+# Port number for server to listen on
+Environment=PGPORT=5432
+
+# Location of configuration files
+Environment=PGDATA=/etc/postgresql-@SLOT@
+
+# Where the data directory is located
+Environment=DATA_DIR=/var/lib/postgresql/@SLOT@/data
+
+# Where to send early-startup messages from the server (before the logging
+# options of postgresql.conf take effect)
+# This is normally controlled by the global default set by systemd
+# StandardOutput=syslog
+
+ExecStartPre=/usr/bin/postgresql-@SLOT@-check-db-dir
+ExecStart=/usr/@LIBDIR@/postgresql-@SLOT@/bin/postgres -p ${PGPORT} -D ${DATA_DIR}
+ExecReload=/bin/kill -HUP $MAINPID
+KillMode=mixed
+KillSignal=SIGINT
+
+# Give a reasonable amount of time for the server to start up/shut down
+TimeoutSec=300
+
+# Disable OOM kill on the postmaster
+OOMScoreAdjust=-1000
+
+# Make sure the required runtimedir is present
+RuntimeDirectory=postgresql
+RuntimeDirectoryMode=1775
+
+[Install]
+WantedBy=multi-user.target
diff --git a/dev-db/postgresql/postgresql-9.6.3-r1.ebuild b/dev-db/postgresql/postgresql-9.6.3-r1.ebuild
new file mode 100644
index 000000000000..2a849b459b15
--- /dev/null
+++ b/dev-db/postgresql/postgresql-9.6.3-r1.ebuild
@@ -0,0 +1,484 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="5"
+
+PYTHON_COMPAT=( python2_7 python3_{4,5,6} )
+
+inherit eutils flag-o-matic linux-info multilib pam prefix python-single-r1 \
+		systemd user versionator
+
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86 ~amd64-fbsd ~sparc-fbsd ~x86-fbsd ~ppc-macos ~x86-solaris"
+
+SLOT="$(get_version_component_range 1-2)"
+
+MY_PV=${PV/_/}
+S="${WORKDIR}/${PN}-${MY_PV}"
+
+SRC_URI="mirror://postgresql/source/v${MY_PV}/postgresql-${MY_PV}.tar.bz2"
+
+LICENSE="POSTGRESQL GPL-2"
+DESCRIPTION="PostgreSQL RDBMS"
+HOMEPAGE="http://www.postgresql.org/"
+
+LINGUAS="af cs de en es fa fr hr hu it ko nb pl pt_BR ro ru sk sl sv tr
+		 zh_CN zh_TW"
+IUSE="doc kerberos kernel_linux ldap libressl nls pam perl -pg_legacytimestamp python
+	  +readline selinux +server systemd ssl static-libs tcl threads uuid xml zlib"
+
+for lingua in ${LINGUAS}; do
+	IUSE+=" linguas_${lingua}"
+done
+REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"
+
+wanted_languages() {
+	local enable_langs
+
+	for lingua in ${LINGUAS} ; do
+		use linguas_${lingua} && enable_langs+="${lingua} "
+	done
+
+	echo -n ${enable_langs}
+}
+
+CDEPEND="
+>=app-eselect/eselect-postgresql-2.0
+sys-apps/less
+virtual/libintl
+kerberos? ( virtual/krb5 )
+ldap? ( net-nds/openldap )
+pam? ( virtual/pam )
+perl? ( >=dev-lang/perl-5.8:= )
+python? ( ${PYTHON_DEPS} )
+readline? ( sys-libs/readline:0= )
+ssl? (
+	!libressl? ( >=dev-libs/openssl-0.9.6-r1:0= )
+	libressl? ( dev-libs/libressl:= )
+)
+server? ( systemd? ( sys-apps/systemd ) )
+tcl? ( >=dev-lang/tcl-8:0= )
+xml? ( dev-libs/libxml2 dev-libs/libxslt )
+zlib? ( sys-libs/zlib )
+"
+
+# uuid flags -- depend on sys-apps/util-linux for Linux libcs, or if no
+# supported libc in use depend on dev-libs/ossp-uuid. For BSD systems,
+# the libc includes UUID functions.
+UTIL_LINUX_LIBC=( elibc_{glibc,uclibc,musl} )
+BSD_LIBC=( elibc_{Free,Net,Open}BSD )
+
+nest_usedep() {
+	local front back
+	while [[ ${#} -gt 1 ]]; do
+		front+="${1}? ( "
+		back+=" )"
+		shift
+	done
+	echo "${front}${1}${back}"
+}
+
+IUSE+=" ${UTIL_LINUX_LIBC[@]} ${BSD_LIBC[@]}"
+CDEPEND+="
+uuid? (
+	${UTIL_LINUX_LIBC[@]/%/? ( sys-apps/util-linux )}
+	$(nest_usedep ${UTIL_LINUX_LIBC[@]/#/!} ${BSD_LIBC[@]/#/!} dev-libs/ossp-uuid)
+)"
+
+DEPEND="${CDEPEND}
+!!<sys-apps/sandbox-2.0
+sys-devel/bison
+sys-devel/flex
+nls? ( sys-devel/gettext )
+xml? ( virtual/pkgconfig )
+"
+
+RDEPEND="${CDEPEND}
+!dev-db/postgresql-docs:${SLOT}
+!dev-db/postgresql-base:${SLOT}
+!dev-db/postgresql-server:${SLOT}
+selinux? ( sec-policy/selinux-postgresql )
+"
+
+pkg_setup() {
+	use server && CONFIG_CHECK="~SYSVIPC" linux-info_pkg_setup
+
+	enewgroup postgres 70
+	enewuser postgres 70 /bin/sh /var/lib/postgresql postgres
+
+	use python && python-single-r1_pkg_setup
+}
+
+src_prepare() {
+	# Work around PPC{,64} compilation bug where bool is already defined
+	sed '/#ifndef __cplusplus/a #undef bool' -i src/include/c.h || die
+
+	# Set proper run directory
+	sed "s|\(PGSOCKET_DIR\s\+\)\"/tmp\"|\1\"${EPREFIX}/run/postgresql\"|" \
+		-i src/include/pg_config_manual.h || die
+
+	# Rely on $PATH being in the proper order so that the correct
+	# install program is used for modules utilizing PGXS in both
+	# hardened and non-hardened environments. (Bug #528786)
+	sed 's/@install_bin@/install -c/' -i src/Makefile.global.in || die
+
+	use server || epatch "${FILESDIR}/${PN}-${SLOT}.1-no-server.patch"
+
+	# Fix bug 486556 where the server would crash at start up because of
+	# an infinite loop caused by a self-referencing symlink.
+	epatch "${FILESDIR}/postgresql-9.2-9.4-tz-dir-overflow.patch"
+
+	if use pam ; then
+		sed -e "s/\(#define PGSQL_PAM_SERVICE \"postgresql\)/\1-${SLOT}/" \
+			-i src/backend/libpq/auth.c || \
+			die 'PGSQL_PAM_SERVICE rename failed.'
+	fi
+
+	epatch_user
+}
+
+src_configure() {
+	case ${CHOST} in
+		*-darwin*|*-solaris*)
+			use nls && append-libs intl
+			;;
+	esac
+
+	export LDFLAGS_SL="${LDFLAGS}"
+	export LDFLAGS_EX="${LDFLAGS}"
+
+	local PO="${EPREFIX%/}"
+
+	local i uuid_config=""
+	if use uuid; then
+		for i in ${UTIL_LINUX_LIBC[@]}; do
+			use ${i} && uuid_config="--with-uuid=e2fs"
+		done
+		for i in ${BSD_LIBC[@]}; do
+			use ${i} && uuid_config="--with-uuid=bsd"
+		done
+		[[ -z $uuid_config ]] && uuid_config="--with-uuid=ossp"
+	fi
+
+	econf \
+		--prefix="${PO}/usr/$(get_libdir)/postgresql-${SLOT}" \
+		--datadir="${PO}/usr/share/postgresql-${SLOT}" \
+		--docdir="${PO}/usr/share/doc/${PF}" \
+		--includedir="${PO}/usr/include/postgresql-${SLOT}" \
+		--mandir="${PO}/usr/share/postgresql-${SLOT}/man" \
+		--sysconfdir="${PO}/etc/postgresql-${SLOT}" \
+		--with-system-tzdata="${PO}/usr/share/zoneinfo" \
+		$(use_enable !pg_legacytimestamp integer-datetimes) \
+		$(use_enable threads thread-safety) \
+		$(use_with kerberos gssapi) \
+		$(use_with ldap) \
+		$(use_with pam) \
+		$(use_with perl) \
+		$(use_with python) \
+		$(use_with readline) \
+		$(use_with ssl openssl) \
+		$(usex server "$(use_with systemd)" '--without-systemd') \
+		$(use_with tcl) \
+		${uuid_config} \
+		$(use_with xml libxml) \
+		$(use_with xml libxslt) \
+		$(use_with zlib) \
+		"$(use_enable nls nls "$(wanted_languages)")"
+}
+
+src_compile() {
+	emake
+	emake -C contrib
+}
+
+src_install() {
+	emake DESTDIR="${D}" install
+	emake DESTDIR="${D}" install -C contrib
+
+	dodoc README HISTORY doc/{TODO,bug.template}
+
+	# man pages are already built, but if we have the target make them,
+	# they'll be generated from source before being installed so we
+	# manually install man pages.
+	# We use ${SLOT} instead of doman for postgresql.eselect
+	insinto /usr/share/postgresql-${SLOT}/man/
+	doins -r doc/src/sgml/man{1,3,7}
+	if ! use server; then
+		# Remove man pages for non-existent binaries
+		for m in {initdb,pg_{controldata,ctl,resetxlog},post{gres,master}}; do
+			rm "${ED}/usr/share/postgresql-${SLOT}/man/man1/${m}.1"
+		done
+	fi
+	docompress /usr/share/postgresql-${SLOT}/man/man{1,3,7}
+
+	insinto /etc/postgresql-${SLOT}
+	newins src/bin/psql/psqlrc.sample psqlrc
+
+	use static-libs || find "${ED}" -name '*.a' -delete
+
+	local f bn
+	for f in $(find "${ED}/usr/$(get_libdir)/postgresql-${SLOT}/bin" \
+					-mindepth 1 -maxdepth 1)
+	do
+		bn=$(basename "${f}")
+		# Temporarily tack on tmp to workaround a file collision
+		# issue. This is only necessary for 9.7 and earlier. 10 never
+		# had this issue.
+		dosym "../$(get_libdir)/postgresql-${SLOT}/bin/${bn}" \
+			  "/usr/bin/${bn}${SLOT/.}tmp"
+	done
+
+	local linkname mansec
+	for mansec in {1,3,7} ; do
+		for f in "${ED}"/usr/share/postgresql-${SLOT}/man/man${mansec}/* ; do
+			bn=$(basename "${f}")
+			linkname=${bn/%.${mansec}/${SLOT/.}.${mansec}}
+			dosym ../../postgresql-${SLOT}/man/man${mansec}/$bn \
+				  /usr/share/man/man${mansec}/${linkname}
+		done
+	done
+
+	if use doc ; then
+		docinto html
+		dodoc doc/src/sgml/html/*
+
+		docinto sgml
+		dodoc doc/src/sgml/*.{sgml,dsl}
+	fi
+
+	if use server; then
+		sed -e "s|@SLOT@|${SLOT}|g" -e "s|@LIBDIR@|$(get_libdir)|g" \
+			"${FILESDIR}/${PN}.confd-9.3" | newconfd - ${PN}-${SLOT}
+
+		sed -e "s|@SLOT@|${SLOT}|g" -e "s|@LIBDIR@|$(get_libdir)|g" \
+			"${FILESDIR}/${PN}.init-9.3-r1" | newinitd - ${PN}-${SLOT}
+
+		if use systemd; then
+			sed -e "s|@SLOT@|${SLOT}|g" -e "s|@LIBDIR@|$(get_libdir)|g" \
+				"${FILESDIR}/${PN}.service-9.6" | \
+				systemd_newunit - ${PN}-${SLOT}.service
+		fi
+
+		newbin "${FILESDIR}"/${PN}-check-db-dir ${PN}-${SLOT}-check-db-dir
+
+		use pam && pamd_mimic system-auth ${PN}-${SLOT} auth account session
+
+		if use prefix ; then
+			keepdir /run/postgresql
+			fperms 0775 /run/postgresql
+		fi
+	fi
+}
+
+pkg_preinst() {
+	# Find all of the slot-specific symlinks, if any, in /usr/bin (e.g.,
+	# /usr/bin/psql96). They may have been created by the
+	# postgresql.eselect module, but they're handled within this ebuild
+	# now. It's alright if we momentarily delete /usr/bin/psql as it
+	# will be recreated by the eselect module in pkg_ppostinst(). This
+	# is only necessary for 9.7 and earlier. 10 and later were never
+	# handled in this manner.
+	local canonicalise
+	if type -p realpath > /dev/null; then
+		canonicalise=realpath
+	elif type -p readlink > /dev/null; then
+		canonicalise='readlink -f'
+	else
+		# can't die, subshell
+		die "No readlink nor realpath found, cannot canonicalise"
+	fi
+
+	local l
+	# First remove any symlinks in /usr/bin that may have been created
+	# by the old eselect
+	for l in $(find "${ROOT%/}/usr/bin" -mindepth 1 -maxdepth 1 -type l) ; do
+		if [[ $(${canonicalise} "${l}") == *postgresql-${SLOT}* ]] ; then
+			rm "${l}" || ewarn "Couldn't remove ${l}"
+		fi
+	done
+
+	# Then move the symlinks created by the ebuild to their proper place.
+	for l in "${ED}"/usr/bin/*tmp ; do
+		mv "${l}" "${l%tmp}" \
+			|| ewarn "Couldn't rename $(basename ${l}) to $(basename ${l%tmp})"
+	done
+}
+
+pkg_postinst() {
+	postgresql-config update
+
+	elog "If you need a global psqlrc-file, you can place it in:"
+	elog "    ${EROOT%/}/etc/postgresql-${SLOT}/"
+
+	if use server ; then
+		elog
+		elog "Gentoo specific documentation:"
+		elog "https://wiki.gentoo.org/wiki/PostgreSQL"
+		elog
+		elog "Official documentation:"
+		elog "http://www.postgresql.org/docs/${SLOT}/static/index.html"
+		elog
+		elog "The default location of the Unix-domain socket is:"
+		elog "    ${EROOT%/}/run/postgresql/"
+		elog
+		elog "Before initializing the database, you may want to edit PG_INITDB_OPTS"
+		elog "so that it contains your preferred locale in:"
+		elog "    ${EROOT%/}/etc/conf.d/postgresql-${SLOT}"
+		elog
+		elog "Then, execute the following command to setup the initial database"
+		elog "environment:"
+		elog "    emerge --config =${CATEGORY}/${PF}"
+	fi
+}
+
+pkg_prerm() {
+	if use server && [[ -z ${REPLACED_BY_VERSION} ]] ; then
+		ewarn "Have you dumped and/or migrated the ${SLOT} database cluster?"
+		ewarn "\thttps://wiki.gentoo.org/wiki/PostgreSQL/QuickStart#Migrating_PostgreSQL"
+
+		ebegin "Resuming removal in 10 seconds (Control-C to cancel)"
+		sleep 10
+		eend 0
+	fi
+}
+
+pkg_postrm() {
+	postgresql-config update
+}
+
+pkg_config() {
+	use server || die "USE flag 'server' not enabled. Nothing to configure."
+
+	[[ -f "${EROOT%/}/etc/conf.d/postgresql-${SLOT}" ]] \
+		&& source "${EROOT%/}/etc/conf.d/postgresql-${SLOT}"
+	[[ -z "${PGDATA}" ]] && PGDATA="${EROOT%/}/etc/postgresql-${SLOT}/"
+	[[ -z "${DATA_DIR}" ]] \
+		&& DATA_DIR="${EROOT%/}/var/lib/postgresql/${SLOT}/data"
+
+	# environment.bz2 may not contain the same locale as the current system
+	# locale. Unset and source from the current system locale.
+	if [ -f "${EROOT%/}/etc/env.d/02locale" ]; then
+		unset LANG
+		unset LC_CTYPE
+		unset LC_NUMERIC
+		unset LC_TIME
+		unset LC_COLLATE
+		unset LC_MONETARY
+		unset LC_MESSAGES
+		unset LC_ALL
+		source "${EROOT%/}/etc/env.d/02locale"
+		[ -n "${LANG}" ] && export LANG
+		[ -n "${LC_CTYPE}" ] && export LC_CTYPE
+		[ -n "${LC_NUMERIC}" ] && export LC_NUMERIC
+		[ -n "${LC_TIME}" ] && export LC_TIME
+		[ -n "${LC_COLLATE}" ] && export LC_COLLATE
+		[ -n "${LC_MONETARY}" ] && export LC_MONETARY
+		[ -n "${LC_MESSAGES}" ] && export LC_MESSAGES
+		[ -n "${LC_ALL}" ] && export LC_ALL
+	fi
+
+	einfo "You can modify the paths and options passed to initdb by editing:"
+	einfo "    ${EROOT%/}/etc/conf.d/postgresql-${SLOT}"
+	einfo
+	einfo "Information on options that can be passed to initdb are found at:"
+	einfo "    http://www.postgresql.org/docs/${SLOT}/static/creating-cluster.html"
+	einfo "    http://www.postgresql.org/docs/${SLOT}/static/app-initdb.html"
+	einfo
+	einfo "PG_INITDB_OPTS is currently set to:"
+	if [[ -z "${PG_INITDB_OPTS}" ]] ; then
+		einfo "    (none)"
+	else
+		einfo "    ${PG_INITDB_OPTS}"
+	fi
+	einfo
+	einfo "Configuration files will be installed to:"
+	einfo "    ${PGDATA}"
+	einfo
+	einfo "The database cluster will be created in:"
+	einfo "    ${DATA_DIR}"
+	einfo
+
+	ebegin "Continuing initialization in 5 seconds (Control-C to cancel)"
+	sleep 5
+	eend 0
+
+	if [ -n "$(ls -A ${DATA_DIR} 2> /dev/null)" ] ; then
+		eerror "The given directory, '${DATA_DIR}', is not empty."
+		eerror "Modify DATA_DIR to point to an empty directory."
+		die "${DATA_DIR} is not empty."
+	fi
+
+	einfo "Creating the data directory ..."
+	if [[ ${EUID} == 0 ]] ; then
+		mkdir -p "${DATA_DIR}"
+		chown -Rf postgres:postgres "${DATA_DIR}"
+		chmod 0700 "${DATA_DIR}"
+	fi
+
+	einfo "Initializing the database ..."
+
+	if [[ ${EUID} == 0 ]] ; then
+		su postgres -c "${EROOT%/}/usr/$(get_libdir)/postgresql-${SLOT}/bin/initdb -D \"${DATA_DIR}\" ${PG_INITDB_OPTS}"
+	else
+		"${EROOT%/}"/usr/$(get_libdir)/postgresql-${SLOT}/bin/initdb -U postgres -D "${DATA_DIR}" ${PG_INITDB_OPTS}
+	fi
+
+	if [[ "${DATA_DIR%/}" != "${PGDATA%/}" ]] ; then
+		mv "${DATA_DIR%/}"/{pg_{hba,ident},postgresql}.conf "${PGDATA}"
+		ln -s "${PGDATA%/}"/{pg_{hba,ident},postgresql}.conf "${DATA_DIR%/}"
+	fi
+
+	# unix_socket_directory has no effect in postgresql.conf as it's
+	# overridden in the initscript
+	sed '/^#unix_socket_directories/,+1d' -i "${PGDATA%/}"/postgresql.conf
+
+	cat <<- EOF >> "${PGDATA%/}"/postgresql.conf
+		# This is here because of https://bugs.gentoo.org/show_bug.cgi?id=518522
+		# On the off-chance that you might need to work with UTF-8 encoded
+		# characters in PL/Perl
+		plperl.on_init = 'use utf8; use re; package utf8; require "utf8_heavy.pl";'
+	EOF
+
+	einfo "The autovacuum function, which was in contrib, has been moved to the main"
+	einfo "PostgreSQL functions starting with 8.1, and starting with 8.4 is now enabled"
+	einfo "by default. You can disable it in the cluster's:"
+	einfo "    ${PGDATA%/}/postgresql.conf"
+	einfo
+	if ! use systemd; then
+		einfo "The PostgreSQL server, by default, will log events to:"
+		einfo "    ${DATA_DIR%/}/postmaster.log"
+		einfo
+	fi
+	if use prefix ; then
+		einfo "The location of the configuration files have moved to:"
+		einfo "    ${PGDATA}"
+		einfo "To start the server:"
+		einfo "    pg_ctl start -D ${DATA_DIR} -o '-D ${PGDATA} --data-directory=${DATA_DIR}'"
+		einfo "To stop:"
+		einfo "    pg_ctl stop -D ${DATA_DIR}"
+		einfo
+		einfo "Or move the configuration files back:"
+		einfo "mv ${PGDATA}*.conf ${DATA_DIR}"
+	elif use systemd; then
+		einfo "You should use the 'postgresql-${SLOT}.service' unit to run PostgreSQL"
+		einfo "instead of 'pg_ctl'."
+	else
+		einfo "You should use the '${EROOT%/}/etc/init.d/postgresql-${SLOT}' script to run PostgreSQL"
+		einfo "instead of 'pg_ctl'."
+	fi
+}
+
+src_test() {
+	if use server && [[ ${UID} -ne 0 ]] ; then
+		emake check
+
+		einfo "If you think other tests besides the regression tests are necessary, please"
+		einfo "submit a bug including a patch for this ebuild to enable them."
+	else
+		use server || \
+			ewarn 'Tests cannot be run without the "server" use flag enabled.'
+		[[ ${UID} -eq 0 ]] || \
+			ewarn 'Tests cannot be run as root. Enable "userpriv" in FEATURES.'
+
+		ewarn 'Skipping.'
+	fi
+}
diff --git a/dev-db/postgresql/postgresql-9999.ebuild b/dev-db/postgresql/postgresql-9999.ebuild
index 4c37f742af7a..cbc1266c2067 100644
--- a/dev-db/postgresql/postgresql-9999.ebuild
+++ b/dev-db/postgresql/postgresql-9999.ebuild
@@ -22,7 +22,7 @@ HOMEPAGE="http://www.postgresql.org/"
 LINGUAS="af cs de en es fa fr hr hu it ko nb pl pt_BR ro ru sk sl sv tr
 		 zh_CN zh_TW"
 IUSE="kerberos kernel_linux ldap libressl nls pam perl -pg_legacytimestamp python
-	  +readline selinux +server ssl static-libs tcl threads uuid xml zlib"
+	  +readline selinux +server systemd ssl static-libs tcl threads uuid xml zlib"
 
 for lingua in ${LINGUAS}; do
 	IUSE+=" linguas_${lingua}"
@@ -53,6 +53,7 @@ ssl? (
 	!libressl? ( >=dev-libs/openssl-0.9.6-r1:0= )
 	libressl? ( dev-libs/libressl:= )
 )
+server? ( systemd? ( sys-apps/systemd ) )
 tcl? ( >=dev-lang/tcl-8:0= )
 uuid? ( dev-libs/ossp-uuid )
 xml? ( dev-libs/libxml2 dev-libs/libxslt )
@@ -155,6 +156,7 @@ src_configure() {
 		$(use_with python) \
 		$(use_with readline) \
 		$(use_with ssl openssl) \
+		$(usex server "$(use_with systemd)" '--without-systemd') \
 		$(use_with tcl) \
 		$(use_with uuid ossp-uuid) \
 		$(use_with xml libxml) \
@@ -183,9 +185,11 @@ src_install() {
 	sed -e "s|@SLOT@|${SLOT}|g" -e "s|@LIBDIR@|$(get_libdir)|g" \
 		"${FILESDIR}/${PN}.init-9.3-r1" | newinitd - ${PN}-${SLOT}
 
-	sed -e "s|@SLOT@|${SLOT}|g" -e "s|@LIBDIR@|$(get_libdir)|g" \
-		"${FILESDIR}/${PN}.service" | \
-		systemd_newunit - ${PN}-${SLOT}.service
+	if use systemd; then
+		sed -e "s|@SLOT@|${SLOT}|g" -e "s|@LIBDIR@|$(get_libdir)|g" \
+			"${FILESDIR}/${PN}.service-9.6" | \
+			systemd_newunit - ${PN}-${SLOT}.service
+	fi
 
 	newbin "${FILESDIR}"/${PN}-check-db-dir ${PN}-${SLOT}-check-db-dir
 
@@ -389,9 +393,11 @@ pkg_config() {
 	einfo "by default. You can disable it in the cluster's:"
 	einfo "    ${PGDATA%/}/postgresql.conf"
 	einfo
-	einfo "The PostgreSQL server, by default, will log events to:"
-	einfo "    ${DATA_DIR%/}/postmaster.log"
-	einfo
+	if ! use systemd; then
+		einfo "The PostgreSQL server, by default, will log events to:"
+		einfo "    ${DATA_DIR%/}/postmaster.log"
+		einfo
+	fi
 	if use prefix ; then
 		einfo "The location of the configuration files have moved to:"
 		einfo "    ${PGDATA}"
@@ -402,6 +408,9 @@ pkg_config() {
 		einfo
 		einfo "Or move the configuration files back:"
 		einfo "mv ${PGDATA}*.conf ${DATA_DIR}"
+	elif use systemd; then
+		einfo "You should use the 'postgresql-${SLOT}.service' unit to run PostgreSQL"
+		einfo "instead of 'pg_ctl'."
 	else
 		einfo "You should use the '${EROOT%/}/etc/init.d/postgresql-${SLOT}' script to run PostgreSQL"
 		einfo "instead of 'pg_ctl'."