Index: head/x11-fm/fsv2/Makefile
===================================================================
--- head/x11-fm/fsv2/Makefile	(revision 501090)
+++ head/x11-fm/fsv2/Makefile	(revision 501091)
@@ -1,34 +1,34 @@
 # $FreeBSD$
 
 PORTNAME=	fsv2
 PORTVERSION=	1.1.0
 CATEGORIES=	x11-fm
 MASTER_SITES=	http://cyber.dabamos.de/pub/distfiles/
 
 MAINTAINER=	kidon@posteo.de
 COMMENT=	3D filesystem visualizer
 
 LICENSE=	LGPL3
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 LIB_DEPENDS=	libgtkgl-2.0.so:x11-toolkits/gtkglarea2 \
 		libfontconfig.so:x11-fonts/fontconfig \
 		libfreetype.so:print/freetype2 \
 		libftgl.so:graphics/ftgl
 
-USES=		tar:bzip2 libtool gettext-runtime pkgconfig
+USES=		compiler:c++11-lang tar:bzip2 libtool gettext-runtime pkgconfig
 USE_GNOME=	gtkmm24 atkmm glibmm pangomm cairomm libsigc++20 gtk20 atk cairo \
 		gdkpixbuf2
 USE_GL=		gl glu
 
 USE_LDCONFIG=	yes
 GNU_CONFIGURE=	yes
 
 OPTIONS_DEFINE=	DOCS NLS
 
 NLS_USES=		gettext
 NLS_CONFIGURE_ENABLE=	nls
 
 INSTALL_TARGET=	install-strip
 
 .include <bsd.port.mk>