--- pdns-3.3.1.ebuild	2014-12-28 16:31:13.000000000 +0000
+++ pdns-3.3.1-r1.ebuild	2015-02-07 21:57:13.014030933 +0000
@@ -129,6 +129,15 @@
		"${D}"/etc/powerdns/pdns.conf

	doinitd "${FILESDIR}"/pdns
+	my_use="\tuse"
+	use mysql && my_use="${my_use} mysql"
+	use postgres && my_use="${my_use} postgresql"
+	if [[ my_use != "use" ]]; then
+		sed -i \
+			-e "s/need net/need net\n${my_use}/" \
+			"${D}"/etc/init.d/pdns
+	fi
+
	systemd_newunit contrib/systemd-pdns.service pdns.service

	keepdir /var/empty