Index: head/science/smoldyn/Makefile
===================================================================
--- head/science/smoldyn/Makefile	(revision 554034)
+++ head/science/smoldyn/Makefile	(revision 554035)
@@ -1,27 +1,27 @@
 # $FreeBSD$
 
 PORTNAME=	smoldyn
 DISTVERSION=	2.62
 CATEGORIES=	science
 MASTER_SITES=	http://www.smoldyn.org/
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Biochemical simulator for molecular diffusion, surface interactions
 
 LICENSE=	LGPL3
 LICENSE_FILE=	${WRKSRC}/License.txt
 
 LIB_DEPENDS=	libtiff.so:graphics/tiff
 
-USES=		cmake gl tar:tgz xorg
+USES=		cmake compiler:c++11-lang gl tar:tgz xorg
 USE_GL=		gl glu glut
 USE_XORG=	xi xmu
 
 PLIST_FILES=	bin/${PORTNAME} \
 		include/libsmoldyn.h \
 		include/smoldyn.h \
 		include/smoldynconfigure.h \
 		lib/libsmoldyn_shared.so \
 		lib/libsmoldyn_static.a
 
 .include <bsd.port.mk>