Index: head/misc/py-gluoncv/Makefile
===================================================================
--- head/misc/py-gluoncv/Makefile	(revision 526236)
+++ head/misc/py-gluoncv/Makefile	(revision 526237)
@@ -1,41 +1,41 @@
 # $FreeBSD$
 
 PORTNAME=	gluoncv
 DISTVERSIONPREFIX=	v
 DISTVERSION=	0.6.0
 CATEGORIES=	misc # machine-learning
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Gluon CV toolkit for state-of-the-art deep learning in computer vision
 
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 PY_DEPENDS=	${PYNUMPY} \
 		${PYTHON_PKGNAMEPREFIX}matplotlib>0:math/py-matplotlib@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}mxnet>0:misc/py-mxnet@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}pillow>0:graphics/py-pillow@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}portalocker>0:devel/py-portalocker@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}requests>0:www/py-requests@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}scipy>=1.0:science/py-scipy@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}tqdm>0:misc/py-tqdm@${PY_FLAVOR}
 BUILD_DEPENDS=	${PY_DEPENDS}
 RUN_DEPENDS=	${PY_DEPENDS}
 
-USES=		python localbase
+USES=		compiler:c11 python localbase
 USE_GITHUB=	yes
 GH_ACCOUNT=	dmlc
 GH_PROJECT=	gluon-cv
 USE_PYTHON=	distutils cython autoplist
 
 PYDISTUTILS_BUILDARGS=		--with-cython
 PYDISTUTILS_INSTALLARGS=	--with-cython
 
 post-patch: # https://github.com/dmlc/gluon-cv/issues/1095
 	@truncate -s 0 ${WRKSRC}/README.md
 
 post-install:
 	@${FIND} ${STAGEDIR}${PREFIX} -name "*.so" | ${XARGS} ${STRIP_CMD}
 
 .include <bsd.port.mk>