Index: head/games/libretro-cap32/Makefile
===================================================================
--- head/games/libretro-cap32/Makefile	(revision 536028)
+++ head/games/libretro-cap32/Makefile	(revision 536029)
@@ -1,25 +1,25 @@
 # $FreeBSD$
 
 PORTNAME=	libretro-cap32
 PORTVERSION=	0.20200504
 CATEGORIES=	games
 
 MAINTAINER=	menelkir@itroll.org
 COMMENT=	Amstrad CPC computers emulator core for libretro API
 
 LICENSE=	GPLv2
 
-USES=		gmake localbase
+USES=		compiler:c++11-lang gmake localbase
 USE_LDCONFIG=	yes
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	libretro
 GH_TAGNAME=	520ab0f
 
 PLIST_FILES=	lib/libretro/cap32_libretro.so
 
 do-install:
 	${MKDIR} ${STAGEDIR}/${PREFIX}/lib/libretro;
 	${INSTALL_LIB} ${WRKSRC}/cap32_libretro.so ${STAGEDIR}/${PREFIX}/lib/libretro;
 
 .include <bsd.port.mk>