Index: head/audio/jamulus/Makefile
===================================================================
--- head/audio/jamulus/Makefile	(revision 529938)
+++ head/audio/jamulus/Makefile	(revision 529939)
@@ -1,34 +1,34 @@
 # $FreeBSD$
 
 PORTNAME=	jamulus
 DISTVERSION=	3.4.4
 CATEGORIES=	audio
 MASTER_SITES=	SF/llcon/${NAME}/${DISTVERSION}/
 DISTNAME=	${NAME}-${PORTVERSION}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Internet jam session software
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 LIB_DEPENDS=	libjack.so:audio/jack
 
-USES=		qmake qt:5
+USES=		compiler:c++11-lang qmake qt:5
 USE_QT=		core gui network widgets xml buildtools_build
 
 NAME=		Jamulus
 
 WRKSRC=		${WRKDIR}/${NAME}${PORTVERSION}
 
 DESKTOP_ENTRIES=	"${NAME}" "${COMMENT}" "${NAME}" \
 			"${PORTNAME}" "AudioVideo;Audio;Mixer;Qt;" true
 
 PLIST_FILES=	bin/${NAME} \
 		share/pixmaps/jamulus.png
 
 do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/${NAME} ${STAGEDIR}${PREFIX}/bin
 	${INSTALL_DATA} ${WRKSRC}/src/res/fronticon.png ${STAGEDIR}${PREFIX}/share/pixmaps/jamulus.png
 
 .include <bsd.port.mk>