crond should be started by systemd

Makefile

-all:
+all: crond-service
 	tar xf cronie-1.7.2.tar.gz
 	cd cronie-cronie-1.7.2 && ./autogen.sh
 	cd cronie-cronie-1.7.2 && ./configure --prefix=/usr --localstatedir=/var --sysconfdir=/etc
@@ -7,4 +7,30 @@ all:
 	chmod u+s /usr/bin/crontab
 	touch /etc/cron.deny
 	install -v -m755 -d /var/spool/cron
+	@echo "$$CROND_SERVICE" > /lib/systemd/system/crond.service
+	systemctl enable crond.service
 	rm -rf cronie-cronie-1.7.2
+
+crond-service:
+define CROND_SERVICE
+[Unit]
+Description=Command Scheduler
+Documentation=man:crond(8)
+After=syslog.target nss-user-lookup.target network.target
+
+[Service]
+EnvironmentFile=-/etc/sysconfig/crond
+ExecStart=/usr/sbin/crond -n $CRONDARGS
+ExecReload=/bin/kill -HUP $MAINPID
+KillMode=process
+Restart=on-failure
+
+ProtectSystem=full
+ProtectHome=yes
+PrivateTmp=yes
+NoNewPrivileges=yes
+
+[Install]
+WantedBy=multi-user.target
+endef
+export CROND_SERVICE