--- /usr/storage/tech/poudriere/ports/default/dns/unbound/Makefile	2014-12-10 22:44:50.000000000 +0900
+++ Makefile	2014-12-25 02:57:35.784616259 +0900
@@ -29,13 +29,14 @@
 		ietf67-design-02.pdf requirements.txt
 PLIST_SUB+=	PYTHON=${PYTHON} MUNIN=${MUNIN}
 
-OPTIONS_DEFINE=	THREADS PYTHON GOST ECDSA MUNIN DOCS LIBEVENT
+OPTIONS_DEFINE=	THREADS PYTHON GOST ECDSA MUNIN DOCS LIBEVENT FILTER_AAAA
 OPTIONS_DEFAULT=THREADS ECDSA
 
 LIBEVENT_DESC=	Build against libevent
 GOST_DESC=	Enable GOST support (requires OpenSSL >= 1.0)
 ECDSA_DESC=	Enable ECDSA (elliptic curve) support (OpenSSL >= 1.0)
 MUNIN_DESC=	Install Munin plugin
+FILTER_AAAA_DESC=	Build with AAAA filter functionality (contrib)
 
 .include <bsd.port.options.mk>
 
@@ -99,6 +100,9 @@
 	@${REINPLACE_CMD} -e 's|if test ! -e $$(DESTDIR)$$(configfile); then || ; \
 		s|$$(configfile); fi|$$(configfile).sample|' \
 		${WRKSRC}/Makefile.in
+.if ${PORT_OPTIONS:MFILTER_AAAA}
+	cat ${WRKSRC}/contrib/aaaa-filter-iterator.patch | ${PATCH} -d ${WRKSRC} -p1
+.endif
 
 post-build:
 	@for s in ${STRIP_FILES}; do ${STRIP_CMD} ${WRKSRC}/$$s; done