diff -urp qttools-opensource-src-5.6.0-beta1/src/qtdiag/qtdiag.pro q/src/qtdiag/qtdiag.pro
--- qttools-opensource-src-5.6.0-beta1/src/qtdiag/qtdiag.pro	2015-10-30 11:48:01.000000000 +0100
+++ q/src/qtdiag/qtdiag.pro	2016-04-30 08:45:22.099054040 +0200
@@ -2,6 +2,7 @@ load(qt_app)
 
 CONFIG += console
 QT += core-private gui-private
+LIBS += -latomic
 
 qtHaveModule(network) {
     QT += network