diff --git a/examples/audio plugin host/Plugin Host.jucer b/examples/audio plugin host/Plugin Host.jucer
index 49911393b7..dce34b8523 100644
--- a/examples/audio plugin host/Plugin Host.jucer	
+++ b/examples/audio plugin host/Plugin Host.jucer	
@@ -11,7 +11,7 @@
         <CONFIGURATION name="Debug" isDebug="1" optimisation="1" targetName="Plugin Host"
                        osxSDK="default" osxCompatibility="default" osxArchitecture="default"/>
         <CONFIGURATION name="Release" isDebug="0" optimisation="2" targetName="Plugin Host"
-                       osxSDK="default" osxCompatibility="10.5 SDK" osxArchitecture="default"/>
+                       osxSDK="default" osxCompatibility="10.6 SDK" osxArchitecture="default"/>
       </CONFIGURATIONS>
       <MODULEPATHS>
         <MODULEPATH id="juce_video" path="../../modules"/>
diff --git a/examples/audio plugin host/Source/FilterGraph.cpp b/examples/audio plugin host/Source/FilterGraph.cpp
index 02089a7779..a8371e4b32 100644
--- a/examples/audio plugin host/Source/FilterGraph.cpp	
+++ b/examples/audio plugin host/Source/FilterGraph.cpp	
@@ -391,7 +391,8 @@ static XmlElement* createNodeXml (AudioProcessorGraph::Node* const node) noexcep
     XmlElement* layouts = new XmlElement ("LAYOUT");
     const AudioProcessor::BusesLayout layout = plugin->getBusesLayout();
 
-    for (bool isInput : { true, false })
+    const bool isInputChoices[] = { true, false };
+    for (bool isInput : isInputChoices)
         layouts->addChildElement (createBusLayoutXml (layout, isInput));
 
     e->addChildElement (layouts);
@@ -420,7 +421,8 @@ void FilterGraph::createNodeFromXml (const XmlElement& xml)
     {
         AudioProcessor::BusesLayout layout = instance->getBusesLayout();
 
-        for (bool isInput : { true, false })
+        const bool isInputChoices[] = { true, false };
+        for (bool isInput : isInputChoices)
             readBusLayoutFromXml (layout, instance, *layoutEntity, isInput);
 
         instance->setBusesLayout (layout);
@@ -453,7 +455,7 @@ void FilterGraph::createNodeFromXml (const XmlElement& xml)
             {
                 jassert (node->getProcessor() != nullptr);
 
-                if (PluginWindow* const w = PluginWindow::getWindowFor (node, type, graph))
+                if (PluginWindow* const w = PluginWindow::getWindowFor (node, type))
                     w->toFront (true);
             }
         }
diff --git a/examples/audio plugin host/Source/GraphEditorPanel.cpp b/examples/audio plugin host/Source/GraphEditorPanel.cpp
index ad5f9492dd..f67b1bc765 100644
--- a/examples/audio plugin host/Source/GraphEditorPanel.cpp	
+++ b/examples/audio plugin host/Source/GraphEditorPanel.cpp	
@@ -35,11 +35,9 @@ static Array <PluginWindow*> activePluginWindows;
 
 PluginWindow::PluginWindow (Component* const pluginEditor,
                             AudioProcessorGraph::Node* const o,
-                            WindowFormatType t,
-                            AudioProcessorGraph& audioGraph)
+                            WindowFormatType t)
     : DocumentWindow (pluginEditor->getName(), Colours::lightblue,
                       DocumentWindow::minimiseButton | DocumentWindow::closeButton),
-      graph (audioGraph),
       owner (o),
       type (t)
 {
@@ -82,10 +80,9 @@ class ProcessorProgramPropertyComp : public PropertyComponent,
                                      private AudioProcessorListener
 {
 public:
-    ProcessorProgramPropertyComp (const String& name, AudioProcessor& p, int index_)
+    ProcessorProgramPropertyComp (const String& name, AudioProcessor& p)
         : PropertyComponent (name),
-          owner (p),
-          index (index_)
+          owner (p)
     {
         owner.addListener (this);
     }
@@ -101,7 +98,6 @@ public:
 
 private:
     AudioProcessor& owner;
-    const int index;
 
     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ProcessorProgramPropertyComp)
 };
@@ -129,7 +125,7 @@ public:
             if (name.isEmpty())
                 name = "Unnamed";
 
-            ProcessorProgramPropertyComp* const pc = new ProcessorProgramPropertyComp (name, *p, i);
+            ProcessorProgramPropertyComp* const pc = new ProcessorProgramPropertyComp (name, *p);
             programs.add (pc);
             totalHeight += pc->getPreferredHeight();
         }
@@ -157,8 +153,7 @@ private:
 
 //==============================================================================
 PluginWindow* PluginWindow::getWindowFor (AudioProcessorGraph::Node* const node,
-                                          WindowFormatType type,
-                                          AudioProcessorGraph& audioGraph)
+                                          WindowFormatType type)
 {
     jassert (node != nullptr);
 
@@ -193,7 +188,7 @@ PluginWindow* PluginWindow::getWindowFor (AudioProcessorGraph::Node* const node,
         if (AudioPluginInstance* const plugin = dynamic_cast<AudioPluginInstance*> (processor))
             ui->setName (plugin->getName());
 
-        return new PluginWindow (ui, node, type, audioGraph);
+        return new PluginWindow (ui, node, type);
     }
 
     return nullptr;
@@ -395,7 +390,7 @@ public:
                             default: break;
                         };
 
-                        if (PluginWindow* const w = PluginWindow::getWindowFor (f, type, graph.getGraph()))
+                        if (PluginWindow* const w = PluginWindow::getWindowFor (f, type))
                             w->toFront (true);
                     }
                 }
@@ -429,7 +424,7 @@ public:
         else if (e.getNumberOfClicks() == 2)
         {
             if (const AudioProcessorGraph::Node::Ptr f = graph.getNodeForId (filterID))
-                if (PluginWindow* const w = PluginWindow::getWindowFor (f, PluginWindow::Normal, graph.getGraph()))
+                if (PluginWindow* const w = PluginWindow::getWindowFor (f, PluginWindow::Normal))
                     w->toFront (true);
         }
     }
diff --git a/examples/audio plugin host/Source/GraphEditorPanel.h b/examples/audio plugin host/Source/GraphEditorPanel.h
index a0760f0468..b08379c88f 100644
--- a/examples/audio plugin host/Source/GraphEditorPanel.h	
+++ b/examples/audio plugin host/Source/GraphEditorPanel.h	
@@ -132,10 +132,10 @@ public:
         NumTypes
     };
 
-    PluginWindow (Component* pluginEditor, AudioProcessorGraph::Node*, WindowFormatType, AudioProcessorGraph&);
+    PluginWindow (Component* pluginEditor, AudioProcessorGraph::Node*, WindowFormatType);
     ~PluginWindow();
 
-    static PluginWindow* getWindowFor (AudioProcessorGraph::Node*, WindowFormatType, AudioProcessorGraph&);
+    static PluginWindow* getWindowFor (AudioProcessorGraph::Node*, WindowFormatType);
 
     static void closeCurrentlyOpenWindowsFor (const uint32 nodeId);
     static void closeAllCurrentlyOpenWindows();
@@ -144,7 +144,6 @@ public:
     void closeButtonPressed() override;
 
 private:
-    AudioProcessorGraph& graph;
     AudioProcessorGraph::Node* owner;
     WindowFormatType type;