Index: Makefile
===================================================================
--- Makefile	(revision 488017)
+++ Makefile	(working copy)
@@ -11,7 +11,8 @@
 
 LICENSE=	LGPL21+
 
-USES=	cmake:outsource gettext-runtime kde:5 lxqt pkgconfig tar:xz qt:5
+USES=	compiler:c++11-lang cmake:outsource gettext-runtime kde:5 lxqt \
+	pkgconfig tar:xz qt:5
 USE_QT=	buildtools_build qmake_build core dbus gui linguisttools \
 	svg widgets x11extras xml
 USE_KDE=	windowsystem