script_DATA = dhclient.conf
-script_PROGRAMS = udhcpc-script dhclient-script
+script_PROGRAMS =
+script_LTLIBRARIES =
+
+if UDHCP
+script_PROGRAMS += udhcpc-script
udhcpc_script_LDADD = @DBUS_LIBS@
+endif
+
+if DHCLIENT
+script_PROGRAMS += dhclient-script
dhclient_script_LDADD = @DBUS_LIBS@
+endif
if PPPD
-script_LTLIBRARIES = pppd-plugin.la
+script_LTLIBRARIES += pppd-plugin.la
pppd_plugin_la_LDFLAGS = -module -avoid-version
endif