> diff -ruN collectd5/Makefile collectd5.new/Makefile
--- collectd5/Makefile	2015-08-19 13:25:38.000000000 +0000
+++ collectd5.new/Makefile	2015-08-19 15:38:48.000000000 +0000
@@ -24,7 +24,7 @@

 OPTIONS_DEFINE=		CGI DEBUG GCRYPT LOGSTASH VIRT
 OPTIONS_GROUP=		INPUT OUTPUT
-OPTIONS_GROUP_OUTPUT=	RRDTOOL NOTIFYEMAIL NOTIFYDESKTOP RIEMANN
+OPTIONS_GROUP_OUTPUT=	RRDTOOL NOTIFYEMAIL NOTIFYDESKTOP RIEMANN KAFKA
 OPTIONS_GROUP_INPUT=	CURL DBI IPMI JSON MEMCACHEC MODBUS MONGODB MYSQL \
 			NUTUPS OLSRD ONEWIRE OPENLDAP PERL PGSQL PINBA PING \
 			PYTHON RABBITMQ REDIS ROUTEROS SIGROK SNMP STATGRAB \
@@ -37,6 +37,7 @@
 GCRYPT_DESC=		Build with libgcrypt
 IPMI_DESC=		Enable OpenIPMI plugin
 JSON_DESC=		Enable JSON plugins
+KAFKA_DESC=		Enable write_kafka plugin
 LOGSTASH_DESC=		Enable log_logstash plugin (requires json)
 MEMCACHEC_DESC=		Enable memcachec plugin
 MODBUS_DESC=		Enable modbus plugin
@@ -99,7 +100,6 @@
 		--without-libnetapp \
 		--without-libowcapi \
 		--without-libperfstat \
-		--without-librdkafka \
 		--without-libsensors \
 		--without-libvarnish \
 		--without-lvm \
@@ -556,6 +556,15 @@
 PLIST_SUB+=	ZOOKEEPER="@comment "
 .endif

+.if ${PORT_OPTIONS:MKAFKA}
+LIB_DEPENDS+=	librdkafka.so:${PORTSDIR}/net/librdkafka
+CONFIGURE_ARGS+=--enable-write_kafka
+PLIST_SUB+=	KAFKA=""
+.else
+CONFIGURE_ARGS+=--disable-write_kafka
+PLIST_SUB+=	KAFKA="@comment "
+.endif
+
 INSTALL_TARGET=install-strip
 SHEBANG_FILES=	contrib/collection.cgi
diff -ruN collectd5/pkg-plist collectd5.new/pkg-plist
 --- collectd5/pkg-plist	2015-08-19 13:39:50.000000000 +0000
 +++ collectd5.new/pkg-plist	2015-08-19 15:38:48.000000000 +0000
 @@ -100,6 +100,7 @@
  %%MONGODB%%lib/collectd/write_mongodb.so
  %%REDIS%%lib/collectd/write_redis.so
  %%RIEMANN%%lib/collectd/write_riemann.so
 +%%KAFKA%%lib/collectd/write_kafka.so
  %%XMMS%%lib/collectd/xmms.so
  lib/collectd/zfs_arc.so
  %%ZOOKEEPER%%lib/collectd/zookeeper.so