4 files changed, 4 insertions, 5 deletions
diff --git a/examples/quick/scenegraph/graph/linenode.cpp b/examples/quick/scenegraph/graph/linenode.cpp
index 473be7da17..992e2d44c9 100644
--- a/examples/quick/scenegraph/graph/linenode.cpp
+++ b/examples/quick/scenegraph/graph/linenode.cpp
@@ -56,7 +56,7 @@ class LineShader : public QSGSimpleMaterialShader<LineMaterial>
     QSG_DECLARE_SIMPLE_SHADER(LineShader, LineMaterial)
 
 public:
-    LineShader() {
+    LineShader() : id_color(-1), id_spread(-1), id_size(-1) {
         setShaderSourceFile(QOpenGLShader::Vertex, ":/scenegraph/graph/shaders/line.vsh");
         setShaderSourceFile(QOpenGLShader::Fragment, ":/scenegraph/graph/shaders/line.fsh");
     }
diff --git a/examples/quick/scenegraph/graph/noisynode.cpp b/examples/quick/scenegraph/graph/noisynode.cpp
index bc273cf632..834151599b 100644
--- a/examples/quick/scenegraph/graph/noisynode.cpp
+++ b/examples/quick/scenegraph/graph/noisynode.cpp
@@ -61,7 +61,7 @@ class NoisyShader : public QSGSimpleMaterialShader<NoisyMaterial>
     QSG_DECLARE_SIMPLE_SHADER(NoisyShader, NoisyMaterial)
 
 public:
-    NoisyShader() {
+    NoisyShader() : id_color(-1), id_texture(-1), id_textureSize(-1) {
         setShaderSourceFile(QOpenGLShader::Vertex, ":/scenegraph/graph/shaders/noisy.vsh");
         setShaderSourceFile(QOpenGLShader::Fragment, ":/scenegraph/graph/shaders/noisy.fsh");
     }
diff --git a/examples/quick/scenegraph/rendernode/softwarerenderer.h b/examples/quick/scenegraph/rendernode/softwarerenderer.h
index 5b2a475ed8..e91ca92d88 100644
--- a/examples/quick/scenegraph/rendernode/softwarerenderer.h
+++ b/examples/quick/scenegraph/rendernode/softwarerenderer.h
@@ -42,8 +42,7 @@
 #define SOFTWARERENDERER_H
 
 #include <qsgrendernode.h>
-
-class QQuickItem;
+#include <QQuickItem>
 
 class SoftwareRenderNode : public QSGRenderNode
 {
diff --git a/examples/quick/scenegraph/scenegraph.pro b/examples/quick/scenegraph/scenegraph.pro
index 1015d7be3d..e13e8198b0 100644
--- a/examples/quick/scenegraph/scenegraph.pro
+++ b/examples/quick/scenegraph/scenegraph.pro
@@ -1,6 +1,6 @@
 TEMPLATE = subdirs
 
-contains(QT_CONFIG, opengl(es1|es2)?) {
+qtConfig(opengl(es1|es2)?) {
     SUBDIRS += \
             graph \
             simplematerial \