Index: head/devel/range-v3/Makefile
===================================================================
--- head/devel/range-v3/Makefile	(revision 528941)
+++ head/devel/range-v3/Makefile	(revision 528942)
@@ -1,31 +1,31 @@
 # $FreeBSD$
 
 PORTNAME=	range-v3
 DISTVERSION=	0.10.0
 CATEGORIES=	devel
 
 MAINTAINER=	henry.hu.sh@gmail.com
 COMMENT=	Experimental range library for C++11/14/17
 
 LICENSE=	BSL
 LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
-USES=		cmake
+USES=		cmake compiler:c++11-lang
 USE_GITHUB=	yes
 GH_ACCOUNT=	ericniebler
 NO_ARCH=	yes
 
 OPTIONS_DEFINE=	TESTS EXAMPLES
 OPTIONS_DEFAULT=
 
 # See issue 1321, 1441, etc.
 TESTS_DESC=	Build tests (fail with clang 9.0)
 EXAMPLES_DESC=	Build examples
 
 TESTS_CMAKE_BOOL=	RANGE_V3_TESTS
 EXAMPLES_CMAKE_BOOL=	RANGE_V3_EXAMPLES
 
 post-install:
 	@${RM} ${STAGEDIR}${PREFIX}/include/module.modulemap
 
 .include <bsd.port.mk>