Index: Makefile
===================================================================
--- Makefile	(revision 482334)
+++ Makefile	(working copy)
@@ -17,7 +17,7 @@
 		libsignon-qt5.so:sysutils/signon-qt5 \
 		libproxy.so:net/libproxy
 
-USES=		pkgconfig python qmake qt:5 tar:bz2
+USES=		compiler:c++11-lang pkgconfig python qmake qt:5 tar:bz2
 USE_QT=		buildtools_build qmake_build webkit widgets
 
 # gitlab variables