Index: Makefile
===================================================================
--- Makefile	(revision 482049)
+++ Makefile	(working copy)
@@ -10,7 +10,7 @@
 
 BROKEN_armv6=		fails to install: pkg-static: Unable to access file DropShadowBase.qmlc: No such file or directory
 
-USES=		qmake qt-dist:5,graphicaleffects
+USES=		compiler:c++11-lang qmake qt-dist:5,graphicaleffects
 USE_QT=		buildtools_build core gui quick qml
 
 .include <bsd.port.mk>