Index: head/math/openmesh/Makefile
===================================================================
--- head/math/openmesh/Makefile	(revision 501540)
+++ head/math/openmesh/Makefile	(revision 501541)
@@ -1,27 +1,27 @@
 # $FreeBSD$
 
 PORTNAME=	openmesh
 DISTVERSION=	7.1
 PORTREVISION=	1
 CATEGORIES=	math
 MASTER_SITES=	http://www.openmesh.org/media/Releases/${DISTVERSION}/
 DISTNAME=	OpenMesh-${DISTVERSION}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Generic data structure for manipulating polygonal meshes
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-USES=		cmake dos2unix gl qt:5
+USES=		cmake compiler:c++11-lang dos2unix gl qt:5
 DOS2UNIX_FILES=	src/OpenMesh/Tools/CMakeLists.txt
 USE_QT=		core concurrent gui help network opengl printsupport script scripttools sql svg x11extras xml xmlpatterns webkit widgets \
 		buildtools_build qmake_build uitools_build
 USE_GL=		gl glu glut
 USE_XORG=	xi xmu
 USE_LDCONFIG=	yes
 
 post-install:
 	@${RMDIR} ${STAGEDIR}${PREFIX}/include/OpenMesh/Tools/VDPM/xpm
 
 .include <bsd.port.mk>