Index: head/graphics/libgltf/Makefile
===================================================================
--- head/graphics/libgltf/Makefile	(revision 373754)
+++ head/graphics/libgltf/Makefile	(revision 373755)
@@ -1,25 +1,25 @@
 # $FreeBSD$
 
 PORTNAME=	libgltf
 PORTVERSION=	0.0.2
 CATEGORIES=	graphics devel
 MASTER_SITES=	LODEV
 
 MAINTAINER=	office@FreeBSD.org
 COMMENT=	C++ Library for rendering OpenGL models stored in glTF format
 
 LICENSE=	LGPL21 MPL
 LICENSE_COMB=	dual
 
 BUILD_DEPENDS=	${LOCALBASE}/include/boost/ptr_container/ptr_map.hpp:${PORTSDIR}/devel/boost-libs \
 		${LOCALBASE}/include/glm/glm.hpp:${PORTSDIR}/math/glm
 LIB_DEPENDS=	libGLEW.so:${PORTSDIR}/graphics/glew
 
-USES=	pathfix pkgconfig libtool tar:bzip2
+USES=	compiler:c++11-lang pathfix pkgconfig libtool tar:bzip2
 USE_LDCONFIG=	yes
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	--disable-werror
 INSTALL_TARGET=	install-strip
 CPPFLAGS+=	-I${LOCALBASE}/include
 
 .include <bsd.port.mk>