Index: head/games/7kaa/Makefile
===================================================================
--- head/games/7kaa/Makefile	(revision 506346)
+++ head/games/7kaa/Makefile	(revision 506347)
@@ -1,46 +1,47 @@
 # Created by: Dmitry Marakasov <amdmi3@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	7kaa
 PORTVERSION=	2.15.2
 DISTVERSIONPREFIX=	v
 CATEGORIES=	games
 
 MAINTAINER=	amdmi3@FreeBSD.org
 COMMENT=	Seven Kingdoms: Ancient Adversaries
 
 LICENSE=	GPLv2+
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 LIB_DEPENDS=	libenet.so:net/enet \
 		libcurl.so:ftp/curl
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	the3dfxdude
 
-USES=		autoreconf gettext-tools gmake localbase openal:al pkgconfig sdl
+USES=		autoreconf compiler:c++11-lang gettext-tools gmake localbase \
+		openal:al pkgconfig sdl
 USE_SDL=	sdl2
 GNU_CONFIGURE=	yes
 
 CXXFLAGS+=	-fPIC
 
 PORTDOCS=	*
 PORTDATA=	*
 
 OPTIONS_DEFINE=	DOCS NLS
 OPTIONS_SUB=	yes
 NLS_USES=	gettext
 NLS_CONFIGURE_ENABLE=	nls
 
 DESKTOP_ENTRIES="7KAA" \
 		"" \
 		"${PREFIX}/share/pixmaps/${PORTNAME}.ico" \
 		"${PORTNAME}" \
 		"Game;StrategyGame;" \
 		""
 
 post-install:
 	@${RM} ${STAGEDIR}${DOCSDIR}/COPYING
 	${INSTALL_DATA} ${WRKSRC}/src/7k.ico ${STAGEDIR}${PREFIX}/share/pixmaps/${PORTNAME}.ico
 
 .include <bsd.port.mk>