Index: head/science/py-onnx/Makefile
===================================================================
--- head/science/py-onnx/Makefile	(revision 508814)
+++ head/science/py-onnx/Makefile	(revision 508815)
@@ -1,29 +1,29 @@
 # $FreeBSD$
 
 PORTNAME=	onnx
 DISTVERSION=	1.5.0
 PORTREVISION=	1
 CATEGORIES=	science
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Open Neural Network eXchange
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BUILD_DEPENDS=	cmake:devel/cmake \
 		${PYTHON_PKGNAMEPREFIX}pytest-runner>=0:devel/py-pytest-runner@${PY_FLAVOR}
 LIB_DEPENDS=	libprotobuf.so:devel/protobuf
 RUN_DEPENDS=	${PYNUMPY} \
 		${PYTHON_PKGNAMEPREFIX}six>=0:devel/py-six@${PY_FLAVOR} \
 		${PY_TYPING} \
 		${PYTHON_PKGNAMEPREFIX}typing-extensions>0:devel/py-typing-extensions@${PY_FLAVOR}
 
-USES=		python
+USES=		compiler:c11 python
 USE_PYTHON=	distutils concurrent autoplist
 
 BINARY_ALIAS=	python=${PYTHON_CMD}
 
 .include <bsd.port.mk>