--- Makefile	(revision 483039)
+++ Makefile	(working copy)
@@ -8,7 +8,7 @@ 
 MAINTAINER=	kde@FreeBSD.org
 COMMENT=	Tool for reporting diagnostic information about Qt and its environment
 
-USES=		qmake:outsource qt-dist:5,tools
+USES=		compiler:c++11-lang qmake:outsource qt-dist:5,tools
 USE_QT=		core gui
 
 PLIST_FILES=	${QT_BINDIR}/qtdiag