Index: head/science/wxmacmolplt/Makefile
===================================================================
--- head/science/wxmacmolplt/Makefile	(revision 502160)
+++ head/science/wxmacmolplt/Makefile	(revision 502161)
@@ -1,24 +1,25 @@
 # $FreeBSD$
 
 PORTNAME=	wxmacmolplt
 DISTVERSIONPREFIX=	v
 DISTVERSION=	7.7-43
 PORTREVISION=	1
 DISTVERSIONSUFFIX=	-g9a46f7a
 CATEGORIES=	science
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Graphical user interface principally for the GAMESS program
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-USES=		autoreconf gl gmake localbase:ldflags pkgconfig
+USES=		autoreconf compiler:c++11-lang gl gmake localbase:ldflags \
+		pkgconfig
 USE_GITHUB=	yes
 GH_ACCOUNT=	brettbode
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	--with-wx-config=${WX_CONFIG}
 USE_WX=		3.0 # configure crashes with 3.1: checking for wxWidgets libraries... Segmentation fault (core dumped)
 USE_GL=		gl glew glu
 
 .include <bsd.port.mk>