Index: head/math/libnormaliz/Makefile
===================================================================
--- head/math/libnormaliz/Makefile	(revision 499902)
+++ head/math/libnormaliz/Makefile	(revision 499903)
@@ -1,51 +1,51 @@
 # $FreeBSD$
 
 PORTNAME=		libnormaliz
 DISTVERSIONPREFIX=	v
 DISTVERSION=		3.6.3
 PORTREVISION=		1
 CATEGORIES=		math
 
 MAINTAINER=	phascolarctos@protonmail.ch
 COMMENT=	Computations in affin monoids, vector configurations etc
 
 LICENSE=	GPLv3+
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 BUILD_DEPENDS=	${LOCALBASE}/include/boost/dynamic_bitset.hpp:devel/boost-libs \
 		${LOCALBASE}/include/gmpxx.h:math/gmp
 
-USES=		gmake
+USES=		compiler:c++11-lang gmake
 USE_GITHUB=	yes
 
 GH_ACCOUNT=	Normaliz
 GH_PROJECT=	Normaliz
 
 BUILD_WRKSRC=	${WRKSRC}/source/libnormaliz
 INSTALL_WRKSRC=	${WRKSRC}/source/libnormaliz
 
 CXXFLAGS+=	-I ${LOCALBASE}/include
 MAKEFILE=	Makefile.classic
 
 OPTIONS_DEFINE=		COCOA DOCS FLINT OPENMP
 COCOA_DESC=		Link with libcocoa.a (might cause circular dependency)
 FLINT_DESC=		Link with libflint.a
 COCOA_BUILD_DEPENDS=	${LOCALBASE}/lib/libcocoa.a:math/cocoalib
 COCOA_CXXFLAGS=		-DNMZ_COCOA -DCoCoA_THREADSAFE_HACK
 COCOA_LDFLAGS=		${LOCALBASE}/lib -lcocoa
 FLINT_BUILD_DEPENDS=	${LOCALBASE}/lib/libflint.so:math/flint2
 FLINT_CXXFLAGS=		-DNMZ_FLINT
 FLINT_LDFLAGS=		-L ${LOCALBASE}/lib -lflint -lmpfr
 OPENMP_BUILD_DEPENDS=	${LOCALBASE}/lib/libomp.so:devel/openmp
 OPENMP_CXXFLAGS=	-fopenmp
 
 do-install:
 	${MKDIR} ${STAGEDIR}${PREFIX}/include/libnormaliz
 	${INSTALL_DATA}	${INSTALL_WRKSRC}/libnormaliz.a ${STAGEDIR}${PREFIX}/lib
 	cd ${INSTALL_WRKSRC} && ${INSTALL_DATA} cone.h cone_property.h convert.h general.h HilbertSeries.h integer.h libnormaliz.h map_operations.h matrix.h my_omp.h normaliz_exception.h sublattice_representation.h vector_operations.h version.h nmz_integrate.h ${STAGEDIR}${PREFIX}/include/libnormaliz
 
 post-install-DOCS-on:
 	${MKDIR} ${STAGEDIR}${DOCSDIR}
 	${INSTALL_MAN} ${WRKSRC}/doc/Normaliz.pdf ${STAGEDIR}${DOCSDIR}
 
 .include <bsd.port.mk>