Index: /trunk/src/VBox/Frontends/VirtualBox/Makefile.kmk
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/Makefile.kmk	(revision 71884)
+++ /trunk/src/VBox/Frontends/VirtualBox/Makefile.kmk	(revision 71885)
@@ -443,5 +443,4 @@
 	src/extensions/QIMenu.h \
 	src/extensions/QIStatusBar.h \
-	src/extensions/QITreeWidget.h \
 	src/extensions/graphics/QIGraphicsView.h \
 	src/extensions/graphics/QIGraphicsWidget.h \
@@ -667,4 +666,5 @@
 	src/extensions/QIToolButton.h \
 	src/extensions/QITreeView.h \
+	src/extensions/QITreeWidget.h \
 	src/extensions/QIWidgetValidator.h \
 	src/extradata/UIExtraDataDefs.h \
@@ -749,4 +749,5 @@
 	src/extensions/QIToolButton.h \
 	src/extensions/QITreeView.h \
+	src/extensions/QITreeWidget.h \
 	src/extensions/QIWidgetValidator.h \
 	src/extradata/UIExtraDataDefs.h \
@@ -917,5 +918,4 @@
 	src/extensions/QIMenu.cpp \
 	src/extensions/QIStatusBar.cpp \
-	src/extensions/QITreeWidget.cpp \
 	src/extensions/graphics/QIGraphicsView.cpp \
 	src/extensions/graphics/QIGraphicsWidget.cpp \
@@ -1175,4 +1175,5 @@
 	src/extensions/QIToolButton.cpp \
 	src/extensions/QITreeView.cpp \
+	src/extensions/QITreeWidget.cpp \
 	src/extensions/QIWidgetValidator.cpp \
 	src/extradata/UIExtraDataDefs.cpp \
@@ -1284,4 +1285,5 @@
 	src/extensions/QIToolButton.cpp \
 	src/extensions/QITreeView.cpp \
+	src/extensions/QITreeWidget.cpp \
 	src/extensions/QIWidgetValidator.cpp \
 	src/extradata/UIExtraDataDefs.cpp \
Index: /trunk/src/VBox/Frontends/VirtualBox/src/extensions/QITreeWidget.cpp
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/extensions/QITreeWidget.cpp	(revision 71884)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/extensions/QITreeWidget.cpp	(revision 71885)
@@ -1,9 +1,9 @@
 /* $Id$ */
 /** @file
- * VBox Qt GUI - VirtualBox Qt extensions: QITreeWidget class implementation.
+ * VBox Qt GUI - Qt extensions: QITreeWidget class implementation.
  */
 
 /*
- * Copyright (C) 2008-2017 Oracle Corporation
+ * Copyright (C) 2008-2018 Oracle Corporation
  *
  * This file is part of VirtualBox Open Source Edition (OSE), as
@@ -468,3 +468,2 @@
     emit resized(pEvent->size(), pEvent->oldSize());
 }
-
Index: /trunk/src/VBox/Frontends/VirtualBox/src/extensions/QITreeWidget.h
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/extensions/QITreeWidget.h	(revision 71884)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/extensions/QITreeWidget.h	(revision 71885)
@@ -1,9 +1,9 @@
 /* $Id$ */
 /** @file
- * VBox Qt GUI - Qt extensions: QITreeWidget class implementation.
+ * VBox Qt GUI - Qt extensions: QITreeWidget class declaration.
  */
 
 /*
- * Copyright (C) 2008-2017 Oracle Corporation
+ * Copyright (C) 2008-2018 Oracle Corporation
  *
  * This file is part of VirtualBox Open Source Edition (OSE), as
@@ -23,4 +23,7 @@
 #include <QTreeWidgetItem>
 
+/* GUI includes: */
+#include "UILibraryDefs.h"
+
 /* Forward declarations: */
 class QITreeWidget;
@@ -28,5 +31,5 @@
 
 /** QTreeWidgetItem subclass extending standard functionality. */
-class QITreeWidgetItem : public QObject, public QTreeWidgetItem
+class SHARED_LIBRARY_STUFF QITreeWidgetItem : public QObject, public QTreeWidgetItem
 {
     Q_OBJECT;
@@ -69,5 +72,5 @@
 
 /** QTreeWidget subclass extending standard functionality. */
-class QITreeWidget : public QTreeWidget
+class SHARED_LIBRARY_STUFF QITreeWidget : public QTreeWidget
 {
     Q_OBJECT;
@@ -101,4 +104,4 @@
 };
 
+
 #endif /* !___QITreeWidget_h___ */
-