Index: head/graphics/phototonic/Makefile
===================================================================
--- head/graphics/phototonic/Makefile	(revision 495850)
+++ head/graphics/phototonic/Makefile	(revision 495851)
@@ -1,28 +1,28 @@
 # Created by: Olivier Duchateau
 # $FreeBSD$
 
 PORTNAME=	phototonic
 DISTVERSIONPREFIX=	v
 DISTVERSION=	2.0
 PORTREVISION=	2
 CATEGORIES=	graphics
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Image viewer and organizer
 
 LICENSE=	GPLv3
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 LIB_DEPENDS=	libexiv2.so:graphics/exiv2
 
-USES=		desktop-file-utils gettext qmake qt:5
+USES=		compiler:c++11-lang desktop-file-utils gettext gl qmake qt:5
 USE_GITHUB=	yes
 GH_ACCOUNT=	oferkv
 USE_GL=		gl
 USE_QT=		core gui imageformats svg widgets buildtools_build
 
 post-patch:
 	${REINPLACE_CMD} -e 's|%%PREFIX%%|${PREFIX}|g' \
 		${WRKSRC}/phototonic.pro
 
 .include <bsd.port.mk>