Index: head/graphics/bonzomatic/Makefile
===================================================================
--- head/graphics/bonzomatic/Makefile	(revision 566193)
+++ head/graphics/bonzomatic/Makefile	(revision 566194)
@@ -1,27 +1,27 @@
 # Created by: Dmitry Marakasov <amdmi3@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	bonzomatic
 DISTVERSION=	2021-01-29
 CATEGORIES=	graphics
 
 MAINTAINER=	amdmi3@FreeBSD.org
 COMMENT=	Live shader coding tool and Shader Showdown workhorse
 
 LICENSE=	PD
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 LIB_DEPENDS=	libasound.so:audio/alsa-lib \
 		libfontconfig.so:x11-fonts/fontconfig \
 		libglfw.so:graphics/glfw
 BUILD_DEPENDS=	${LOCALBASE}/include/stb/stb_image.h:devel/stb
 
-USES=		cmake gl localbase:ldflags pkgconfig xorg
+USES=		cmake compiler:c++11-lang gl localbase:ldflags pkgconfig xorg
 USE_GL=		gl glu glew
 USE_XORG=	x11 xext xrandr xinerama xcursor xi
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	Gargaj
 GH_PROJECT=	Bonzomatic
 
 .include <bsd.port.mk>