4 files changed, 7 insertions, 1 deletions
diff --git a/src/quick/scenegraph/coreapi/qsgmaterial.h b/src/quick/scenegraph/coreapi/qsgmaterial.h
index 95c32c59f2..65c8df219f 100644
--- a/src/quick/scenegraph/coreapi/qsgmaterial.h
+++ b/src/quick/scenegraph/coreapi/qsgmaterial.h
@@ -83,6 +83,7 @@ public:
     };
 
     QSGMaterialShader();
+    virtual ~QSGMaterialShader() {};
 
     virtual void activate();
     virtual void deactivate();
diff --git a/src/quick/scenegraph/coreapi/qsgnodeupdater.cpp b/src/quick/scenegraph/coreapi/qsgnodeupdater.cpp
index b071bbb621..31b82d9d88 100644
--- a/src/quick/scenegraph/coreapi/qsgnodeupdater.cpp
+++ b/src/quick/scenegraph/coreapi/qsgnodeupdater.cpp
@@ -54,6 +54,10 @@ QSGNodeUpdater::QSGNodeUpdater()
     m_opacity_stack.add(1);
 }
 
+QSGNodeUpdater::~QSGNodeUpdater()
+{
+}
+
 void QSGNodeUpdater::updateStates(QSGNode *n)
 {
     m_current_clip = 0;
diff --git a/src/quick/scenegraph/coreapi/qsgnodeupdater_p.h b/src/quick/scenegraph/coreapi/qsgnodeupdater_p.h
index c45412d201..5c455b8151 100644
--- a/src/quick/scenegraph/coreapi/qsgnodeupdater_p.h
+++ b/src/quick/scenegraph/coreapi/qsgnodeupdater_p.h
@@ -51,6 +51,7 @@ class Q_QUICK_EXPORT QSGNodeUpdater
 {
 public:
     QSGNodeUpdater();
+    virtual ~QSGNodeUpdater();
 
     virtual void updateStates(QSGNode *n);
     virtual bool isNodeBlocked(QSGNode *n, QSGNode *root) const;
diff --git a/src/quick/scenegraph/qsgcontextplugin_p.h b/src/quick/scenegraph/qsgcontextplugin_p.h
index e6bb2ea969..081e64ecdd 100644
--- a/src/quick/scenegraph/qsgcontextplugin_p.h
+++ b/src/quick/scenegraph/qsgcontextplugin_p.h
@@ -76,7 +76,7 @@ public:
     virtual QStringList keys() const = 0;
     virtual QSGContext *create(const QString &key) const = 0;
 
-    virtual QDeclarativeTextureFactory *createTextureFactoryFromImage(const QImage &image) { return 0; }
+    virtual QDeclarativeTextureFactory *createTextureFactoryFromImage(const QImage &) { return 0; }
 };
 
 QT_END_NAMESPACE