Index: head/benchmarks/stress-ng/Makefile
===================================================================
--- head/benchmarks/stress-ng/Makefile	(revision 460115)
+++ head/benchmarks/stress-ng/Makefile	(revision 460116)
@@ -1,25 +1,31 @@
 # $FreeBSD$
 
 PORTNAME=	stress-ng
 PORTVERSION=	0.09.13
 CATEGORIES=	benchmarks
 MASTER_SITES=	http://kernel.ubuntu.com/~cking/tarballs/stress-ng/
 
 MAINTAINER=	pizzamig@FreeBSD.org
 COMMENT=	Stress test benchmarks
 
 LICENSE=	GPLv2+
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 BROKEN_aarch64=	Fails to link: missing sbrk
 
 USES=		compiler:c11 gmake tar:xz
 ALL_TARGET=	# empty
 
 PLIST_FILES=	bin/stress-ng man/man1/stress-ng.1.gz
 
+.include <bsd.port.options.mk>
+
+.if ${OPSYS} == FreeBSD && ${OSVERSION} >= 1200056 && ${ARCH} == i386
+BROKEN=	undefined reference to '__atomic_fetch_add_8'
+.endif
+
 do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/stress-ng ${STAGEDIR}${PREFIX}/bin
 	${INSTALL_MAN} ${WRKSRC}/stress-ng.1 ${STAGEDIR}${MAN1PREFIX}/man/man1
 
 .include <bsd.port.mk>
Index: head/net/librdkafka/Makefile
===================================================================
--- head/net/librdkafka/Makefile	(revision 460115)
+++ head/net/librdkafka/Makefile	(revision 460116)
@@ -1,41 +1,47 @@
 # Created by: Victor Yagofarov <xnasx@yandex.ru>
 # $FreeBSD$
 
 PORTNAME=	librdkafka
 PORTVERSION=	0.11.3
 DISTVERSIONPREFIX=	v
 CATEGORIES=	net
 
 MAINTAINER=	pizzamig@FreeBSD.org
 COMMENT=	Apache Kafka C/C++ library
 
 LICENSE=	BSD2CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BROKEN_mips=		fails to build: undefined reference to __sync_add_and_fetch_4
 BROKEN_mips64=		fails to build: undefined reference to __sync_add_and_fetch_4
 BROKEN_powerpc64=	fails to build: cc: Internal error: Segmentation fault (program ld)
 
 BUILD_DEPENDS=	bash:shells/bash
 LIB_DEPENDS=	liblz4.so:archivers/liblz4
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	edenhill
 
 USES=		gmake perl5 python shebangfix ssl
 SHEBANG_FILES=	lds-gen.py
 GNU_CONFIGURE=	yes
 MAKE_ARGS=	pkgconfigdir=${PREFIX}/libdata/pkgconfig
 CONFIGURE_ARGS+=	--disable-sasl --enable-ssl
 
 USE_LDCONFIG=	yes
 
+.include <bsd.port.options.mk>
+
+.if ${OPSYS} == FreeBSD && ${OSVERSION} >= 1200056 && ${ARCH} == i386
+BROKEN=	undefined reference to '__atomic_fetch_add_8'
+.endif
+
 post-patch:
 	${REINPLACE_CMD} -e \
 	's|_ALIGN(|_RE_ALIGN(|g' ${WRKSRC}/src/rdkafka_buf.h \
 		${WRKSRC}/src/rdkafka_metadata_cache.c
 
 post-install:
 	@${STRIP_CMD} ${STAGEDIR}${PREFIX}/lib/*.so.*
 
 .include <bsd.port.mk>