Index: head/x11-fonts/fontmatrix/Makefile
===================================================================
--- head/x11-fonts/fontmatrix/Makefile	(revision 512356)
+++ head/x11-fonts/fontmatrix/Makefile	(revision 512357)
@@ -1,25 +1,25 @@
 # $FreeBSD$
 
 PORTNAME=	fontmatrix
 DISTVERSION=	g20190429
 CATEGORIES=	x11-fonts
 
 MAINTAINER=	ehaupt@FreeBSD.org
 COMMENT=	Graphical font manager
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 LIB_DEPENDS=	libfontconfig.so:x11-fonts/fontconfig \
 		libfreetype.so:print/freetype2
 
-USES=		cmake qt:5
+USES=		cmake compiler:c++11-lang qt:5
 
 USE_GITHUB=	yes
 USE_QT=		buildtools core gui linguisttools network printsupport \
 		qmake_build sql svg webkit widgets xml
 
 GH_ACCOUNT=	fcoiffie
 GH_TAGNAME=	51dd8f2
 
 .include <bsd.port.mk>