Index: head/graphics/mandelbulber/Makefile
===================================================================
--- head/graphics/mandelbulber/Makefile	(revision 490450)
+++ head/graphics/mandelbulber/Makefile	(revision 490451)
@@ -1,55 +1,56 @@
 # Created by: Dmitry Marakasov <amdmi3@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	mandelbulber
 PORTVERSION=	2.16
 CATEGORIES=	graphics
 
 MAINTAINER=	amdmi3@FreeBSD.org
 COMMENT=	3D Mandelbrot fractal renderer
 
 LICENSE=	GPLv3+
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 LIB_DEPENDS=	libgsl.so:math/gsl \
 		libpng.so:graphics/png \
 		libtiff.so:graphics/tiff \
 		liblzo2.so:archivers/lzo2
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	buddhi1980
 GH_PROJECT=	${PORTNAME}2
 
-USES=		cmake gnome jpeg localbase:ldflags pkgconfig qt:5
+USES=		cmake compiler:c++11-lang gnome jpeg localbase:ldflags \
+		pkgconfig qt:5
 USE_QT=		core widgets network gui multimedia testlib \
 		qmake_build buildtools_build uitools_build
 INSTALLS_ICONS=	yes
 
 CMAKE_SOURCE_PATH=	${WRKSRC}/mandelbulber2/cmake
 
 PORTDOCS=	CONTRIBUTING.md README.md RESOURCES.md
 PORTDATA=	*
 DATADIR=	${PREFIX}/share/${PORTNAME}2
 
 OPTIONS_DEFINE=	OPENCL OPENMP DOCS
 OPTIONS_EXCLUDE=	OPENMP  # not properly supported yet
 
 OPENCL_BUILD_DEPENDS=	opencl>=0:devel/opencl
 
 OPENMP_LIB_DEPENDS=	libomp.so:devel/openmp
 
 post-patch-OPENMP-off:
 	@${REINPLACE_CMD} -e 's|-fopenmp||' \
 		${CMAKE_SOURCE_PATH}/CMakeLists.txt
 
 post-patch-OPENCL-off:
 	@${REINPLACE_CMD} -e '/find_package.*OpenCL/ d' \
 		${CMAKE_SOURCE_PATH}/CMakeLists.txt
 
 post-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 .for f in ${PORTDOCS}
 	${INSTALL_DATA} ${WRKSRC}/${f} ${STAGEDIR}${DOCSDIR}/
 .endfor
 
 .include <bsd.port.mk>