Index: head/devel/protobuf-c/Makefile
===================================================================
--- head/devel/protobuf-c/Makefile	(revision 461849)
+++ head/devel/protobuf-c/Makefile	(revision 461850)
@@ -1,43 +1,43 @@
 # Created by: Aaron Hurt <ahurt@anbcs.com>
 # $FreeBSD$
 
 PORTNAME=		protobuf-c
 PORTVERSION=		1.3.0
 DISTVERSIONPREFIX=	v
 PORTREVISION=	1
 CATEGORIES=		devel
 
 MAINTAINER=	truckman@FreeBSD.org
 COMMENT=	Code generator and libraries to use Protocol Buffers from pure C
 
 LICENSE=	BSD2CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 LIB_DEPENDS=	libprotobuf.so:devel/protobuf
 
-USES=		autoreconf gmake libtool pkgconfig
+USES=		autoreconf compiler:c++11-lang gmake libtool pkgconfig
 GNU_CONFIGURE=	yes
 USE_GITHUB=	yes
 USE_LDCONFIG=	yes
 
 CPPFLAGS+=	-I${LOCALBASE}/include
 LDFLAGS+=	-L${LOCALBASE}/lib
 
 OPTIONS_DEFINE=	DOXYGEN
 OPTIONS_DEFAULT=	DOXYGEN
 
 PORTDOCS=	*
 
 ALL_TARGET=	all
 INSTALL_TARGET=	install-strip
 DOXYGEN_BUILD_DEPENDS=	doxygen:devel/doxygen
 DOXYGEN_ALL_TARGET=	html-local
 
 post-install-DOXYGEN-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}/html
 	${INSTALL_DATA} ${WRKSRC}/html/* ${STAGEDIR}${DOCSDIR}/html
 
 tests: build
 	@(cd ${WRKSRC} && ${SETENV} ${MAKE_ENV} ${MAKE} ${MAKE_FLAGS} ${MAKEFILE} ${MAKE_ARGS} check)
 
 .include <bsd.port.mk>