Index: head/devel/py-grpcio/Makefile
===================================================================
--- head/devel/py-grpcio/Makefile	(revision 444087)
+++ head/devel/py-grpcio/Makefile	(revision 444088)
@@ -1,30 +1,31 @@
 # Created by: vanilla@
 # $FreeBSD$
 
 PORTNAME=	grpcio
 PORTVERSION=	1.3.5
 CATEGORIES=	devel python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	vanilla@FreeBSD.org
 COMMENT=	HTTP/2-based RPC framework
 
 LICENSE=	BSD3CLAUSE
 
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}six>1:devel/py-six \
 		${PYTHON_PKGNAMEPREFIX}enum34>1:devel/py-enum34
 LIB_DEPENDS=	libcares.so:dns/c-ares
 
+BROKEN_aarch64=		fails to compile: cpu-aarch64-linux.c: fatal error: 'sys/auxv.h' file not found
 BROKEN_powerpc64=	fails to compile: cpu-ppc64le.c: 'AT_HWCAP2' undeclared
 
 USES=		python
 USE_PYTHON=	distutils
 CFLAGS+=	-Ithird_party/boringssl/include \
 		-I${LOCALBASE}/include
 LDFLAGS+=	-L${LOCALBASE}/lib -lcares
 
 post-install:
 	${STRIP_CMD} ${STAGEDIR}${PYTHONPREFIX_SITELIBDIR}/grpc/_cython/cygrpc.so
 
 .include <bsd.port.mk>