Index: head/x11-toolkits/qt5-gtkplatform/Makefile
===================================================================
--- head/x11-toolkits/qt5-gtkplatform/Makefile	(revision 495749)
+++ head/x11-toolkits/qt5-gtkplatform/Makefile	(revision 495750)
@@ -1,35 +1,35 @@
 # $FreeBSD$
 
 PORTNAME=	gtkplatform
 DISTVERSION=	0.2.2
 PORTREVISION=	2
 CATEGORIES=	x11-toolkits
 PKGNAMEPREFIX=	qt5-
 
 MAINTAINER=	greg@unrelenting.technology
 COMMENT=	GTK platform backend for Qt 5
 
 LICENSE=	LGPL3 GPLv2+
 LICENSE_COMB=	dual
 
 LIB_DEPENDS=	libfontconfig.so:x11-fonts/fontconfig \
 		libfreetype.so:print/freetype2 \
 		libinput.so:x11/libinput \
 		libmtdev.so:devel/libmtdev \
 		libnotify.so:devel/libnotify \
 		libudev.so:devel/libudev-devd \
 		libxkbcommon.so:x11/libxkbcommon
 
-USES=		qmake:outsource pkgconfig qt:5
+USES=		compiler:c++11-lang pkgconfig qmake:outsource qt:5
 USE_GNOME=	gtk30 cairo gdkpixbuf2
 USE_QT=		buildtools_build core gui widgets dbus
 USE_XORG=	x11 xext xrender
 USE_GL=		gl egl
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	CrimsonAS
 
 post-install:
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/lib/qt5/plugins/platforms/libqgtk.so
 
 .include <bsd.port.mk>