Index: Makefile
===================================================================
--- Makefile
+++ Makefile
@@ -68,7 +68,11 @@
 OPTIONS_SINGLE=		ZEROCONF
 OPTIONS_SINGLE_ZEROCONF=	AVAHI MDNSRESPONDER
 AVAHI_LIB_DEPENDS=	libdns_sd.so:${PORTSDIR}/net/avahi-libdns
+AVAHI_CMAKE_ON=		-DWITH_Avahi:BOOL=On
+AVAHI_CMAKE_OFF=		-DWITH_Avahi:BOOL=Off
 MDNSRESPONDER_LIB_DEPENDS=	libdns_sd.so:${PORTSDIR}/net/mDNSResponder
+MDNSRESPONDER_CMAKE_ON=	-DWITH_DNSSD:BOOL=On
+MDNSRESPONDER_CMAKE_OFF=	-DWITH_DNSSD:BOOL=Off
 
 .include <bsd.port.pre.mk>