Fix compile on Linux

Change-Id: I288d0942b65844b205b50ac75cce2a4d358c6eff
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/projectexplorer/buildsteplist.cpp

@@ -31,6 +31,9 @@
 #include "target.h"
 
 #include <utils/algorithm.h>
+#include <utils/qtcassert.h>
+
+#include <QDebug>
 
 namespace ProjectExplorer {
 

src/plugins/qmakeprojectmanager/qmakestep.h

@@ -34,6 +34,8 @@
 
 #include <memory>
 
+#include <QDebug>
+
 QT_BEGIN_NAMESPACE
 class QComboBox;
 class QLabel;