remote: reduce duplication in systemd unit file make rules into one

The make rules for the systemd socket unit files are all essentially
identical and can be collapsed into a single generic rule. The service
unit file rule can be simplified too.
Reviewed-by: NChristophe de Dinechin <dinechin@redhat.com>
Reviewed-by: NAndrea Bolognani <abologna@redhat.com>
Signed-off-by: NDaniel P. Berrangé <berrange@redhat.com>

src/Makefile.am

@@ -89,6 +89,12 @@ man8_MANS =
 DRIVER_SOURCES =
 man7_MANS =
 
+COMMON_UNIT_VARS = \
+	-e 's|[@]localstatedir[@]|$(localstatedir)|g' \
+	-e 's|[@]sbindir[@]|$(sbindir)|g' \
+	-e 's|[@]sysconfdir[@]|$(sysconfdir)|g' \
+	$(NULL)
+
 include util/Makefile.inc.am
 include conf/Makefile.inc.am
 include cpu/Makefile.inc.am

src/remote/Makefile.inc.am

@@ -293,48 +293,15 @@ INSTALL_DATA_LOCAL += install-sasl
 UNINSTALL_LOCAL += uninstall-sasl
 endif WITH_SASL
 
+LIBVIRTD_UNIT_VARS = \
+	$(COMMON_UNIT_VARS) \
+	$(NULL)
+
 libvirtd.service: remote/libvirtd.service.in $(top_builddir)/config.status
-	$(AM_V_GEN)sed \
-	    -e 's|[@]localstatedir[@]|$(localstatedir)|g' \
-	    -e 's|[@]sbindir[@]|$(sbindir)|g' \
-	    -e 's|[@]sysconfdir[@]|$(sysconfdir)|g' \
-	    < $< > $@-t && \
-	    mv $@-t $@
-
-libvirtd.socket: remote/libvirtd.socket.in $(top_builddir)/config.status
-	$(AM_V_GEN)sed \
-	    -e 's|[@]localstatedir[@]|$(localstatedir)|g' \
-	    -e 's|[@]sysconfdir[@]|$(sysconfdir)|g' \
-	    < $< > $@-t && \
-	    mv $@-t $@
-
-libvirtd-ro.socket: remote/libvirtd-ro.socket.in $(top_builddir)/config.status
-	$(AM_V_GEN)sed \
-	    -e 's|[@]localstatedir[@]|$(localstatedir)|g' \
-	    -e 's|[@]sysconfdir[@]|$(sysconfdir)|g' \
-	    < $< > $@-t && \
-	    mv $@-t $@
-
-libvirtd-admin.socket: remote/libvirtd-admin.socket.in $(top_builddir)/config.status
-	$(AM_V_GEN)sed \
-	    -e 's|[@]localstatedir[@]|$(localstatedir)|g' \
-	    -e 's|[@]sysconfdir[@]|$(sysconfdir)|g' \
-	    < $< > $@-t && \
-	    mv $@-t $@
-
-libvirtd-tcp.socket: remote/libvirtd-tcp.socket.in $(top_builddir)/config.status
-	$(AM_V_GEN)sed \
-	    -e 's|[@]localstatedir[@]|$(localstatedir)|g' \
-	    -e 's|[@]sysconfdir[@]|$(sysconfdir)|g' \
-	    < $< > $@-t && \
-	    mv $@-t $@
-
-libvirtd-tls.socket: remote/libvirtd-tls.socket.in $(top_builddir)/config.status
-	$(AM_V_GEN)sed \
-	    -e 's|[@]localstatedir[@]|$(localstatedir)|g' \
-	    -e 's|[@]sysconfdir[@]|$(sysconfdir)|g' \
-	    < $< > $@-t && \
-	    mv $@-t $@
+	$(AM_V_GEN)$(SED) $(LIBVIRTD_UNIT_VARS) $< > $@-t && mv $@-t $@
+
+libvirt%.socket: remote/libvirt%.socket.in $(top_builddir)/config.status
+	$(AM_V_GEN)$(SED) $(LIBVIRTD_UNIT_VARS) $< > $@-t && mv $@-t $@
 
 virt-guest-shutdown.target: remote/virt-guest-shutdown.target.in \
 			$(top_builddir)/config.status