Removed some warning settings that weren't supported by older GCCs. Also added workarounds for some spurious GCC warnings.

extras/Introjucer/Builds/MacOSX/The Introjucer.xcodeproj/project.pbxproj

@@ -1873,7 +1873,7 @@
 				HEADER_SEARCH_PATHS = "../../JuceLibraryCode $(inherited)";
 				GCC_OPTIMIZATION_LEVEL = 0;
 				INFOPLIST_FILE = Info.plist;
-				OTHER_CPLUSPLUSFLAGS = "-W -Wall -Wshadow -Wno-missing-field-initializers -Wint-conversion -Wshadow -Wconstant-conversion -Wshorten-64-to-32 -Wstrict-aliasing";
+				OTHER_CPLUSPLUSFLAGS = "-Wall -Wshadow -Wno-missing-field-initializers -Wshadow -Wshorten-64-to-32 -Wstrict-aliasing";
 				INSTALL_PATH = "$(HOME)/Applications";
 				CONFIGURATION_BUILD_DIR = "$(PROJECT_DIR)/build/$(CONFIGURATION)";
 				MACOSX_DEPLOYMENT_TARGET_ppc = 10.4;
@@ -1894,7 +1894,7 @@
 				HEADER_SEARCH_PATHS = "../../JuceLibraryCode $(inherited)";
 				GCC_OPTIMIZATION_LEVEL = 3;
 				INFOPLIST_FILE = Info.plist;
-				OTHER_CPLUSPLUSFLAGS = "-W -Wall -Wshadow -Wno-missing-field-initializers -Wint-conversion -Wshadow -Wconstant-conversion -Wshorten-64-to-32 -Wstrict-aliasing";
+				OTHER_CPLUSPLUSFLAGS = "-Wall -Wshadow -Wno-missing-field-initializers -Wshadow -Wshorten-64-to-32 -Wstrict-aliasing";
 				INSTALL_PATH = "$(HOME)/Applications";
 				CONFIGURATION_BUILD_DIR = "$(PROJECT_DIR)/build/$(CONFIGURATION)";
 				MACOSX_DEPLOYMENT_TARGET = 10.5;

extras/Introjucer/Introjucer.jucer

@@ -15,7 +15,7 @@
   <EXPORTFORMATS>
     <XCODE_MAC targetFolder="Builds/MacOSX" vstFolder="~/SDKs/vstsdk2.4" rtasFolder="~/SDKs/PT_80_SDK"
                juceFolder="../.." documentExtensions=".jucer" objCExtraSuffix="zNNCr"
-               bigIcon="rVgowdy" extraCompilerFlags="-W -Wall -Wshadow -Wno-missing-field-initializers -Wint-conversion -Wshadow -Wconstant-conversion -Wshorten-64-to-32 -Wstrict-aliasing">
+               bigIcon="rVgowdy" extraCompilerFlags="-Wall -Wshadow -Wno-missing-field-initializers -Wshadow -Wshorten-64-to-32 -Wstrict-aliasing">
       <CONFIGURATIONS>
         <CONFIGURATION name="Debug" isDebug="1" optimisation="1" targetName="Introjucer"
                        osxSDK="default" osxCompatibility="default" osxArchitecture="default"/>

extras/JuceDemo/Builds/MacOSX/Juce Demo.xcodeproj/project.pbxproj

@@ -2071,7 +2071,7 @@
 				HEADER_SEARCH_PATHS = "../../JuceLibraryCode $(inherited)";
 				GCC_OPTIMIZATION_LEVEL = 0;
 				INFOPLIST_FILE = Info.plist;
-				OTHER_CPLUSPLUSFLAGS = "-Wall -Wno-missing-field-initializers -Wstrict-aliasing -Wint-conversion -Wshadow -Wconstant-conversion -Wshorten-64-to-32";
+				OTHER_CPLUSPLUSFLAGS = "-Wall -Wno-missing-field-initializers -Wstrict-aliasing -Wshadow -Wshorten-64-to-32";
 				INSTALL_PATH = "$(HOME)/Applications";
 				CONFIGURATION_BUILD_DIR = "$(PROJECT_DIR)/build/$(CONFIGURATION)";
 				MACOSX_DEPLOYMENT_TARGET_ppc = 10.4;
@@ -2093,7 +2093,7 @@
 				HEADER_SEARCH_PATHS = "../../JuceLibraryCode $(inherited)";
 				GCC_OPTIMIZATION_LEVEL = s;
 				INFOPLIST_FILE = Info.plist;
-				OTHER_CPLUSPLUSFLAGS = "-Wall -Wno-missing-field-initializers -Wstrict-aliasing -Wint-conversion -Wshadow -Wconstant-conversion -Wshorten-64-to-32";
+				OTHER_CPLUSPLUSFLAGS = "-Wall -Wno-missing-field-initializers -Wstrict-aliasing -Wshadow -Wshorten-64-to-32";
 				INSTALL_PATH = "$(HOME)/Applications";
 				CONFIGURATION_BUILD_DIR = "$(PROJECT_DIR)/build/$(CONFIGURATION)";
 				MACOSX_DEPLOYMENT_TARGET = 10.5;

extras/JuceDemo/Juce Demo.jucer

@@ -12,7 +12,7 @@
   <EXPORTFORMATS>
     <XCODE_MAC targetFolder="Builds/MacOSX" vstFolder="~/SDKs/vstsdk2.4" rtasFolder="~/SDKs/PT_80_SDK"
                juceFolder="../../../juce" objCExtraSuffix="JSLvvV6j" bigIcon="f4hwldS"
-               extraCompilerFlags="-Wall -Wno-missing-field-initializers -Wstrict-aliasing -Wint-conversion -Wshadow -Wconstant-conversion -Wshorten-64-to-32">
+               extraCompilerFlags="-Wall -Wno-missing-field-initializers -Wstrict-aliasing -Wshadow -Wshorten-64-to-32">
       <CONFIGURATIONS>
         <CONFIGURATION name="Debug" isDebug="1" optimisation="1" targetName="JuceDemo"
                        osxSDK="default" osxCompatibility="default" defines="JUCE_UNIT_TESTS=1"

extras/JuceDemo/Source/demos/WidgetsDemo.cpp

@@ -839,10 +839,10 @@ private:
                 comboBox.setEditableText (true);
             }
 
-            bool getToolbarItemSizes (int /*toolbarDepth*/, bool isToolbarVertical,
+            bool getToolbarItemSizes (int /*toolbarDepth*/, bool isVertical,
                                       int& preferredSize, int& minSize, int& maxSize)
             {
-                if (isToolbarVertical)
+                if (isVertical)
                     return false;
 
                 preferredSize = 250;
@@ -855,12 +855,12 @@ private:
             {
             }
 
-            void contentAreaChanged (const Rectangle<int>& contentArea)
+            void contentAreaChanged (const Rectangle<int>& newArea)
             {
-                comboBox.setSize (contentArea.getWidth() - 2,
-                                  jmin (contentArea.getHeight() - 2, 22));
+                comboBox.setSize (newArea.getWidth() - 2,
+                                  jmin (newArea.getHeight() - 2, 22));
 
-                comboBox.setCentrePosition (contentArea.getCentreX(), contentArea.getCentreY());
+                comboBox.setCentrePosition (newArea.getCentreX(), newArea.getCentreY());
             }
 
         private:

modules/juce_audio_basics/buffers/juce_AudioDataConverters.h

@@ -350,8 +350,8 @@ public:
         /** Creates a pointer from some raw data in the appropriate format with the specified number of interleaved channels.
             For non-interleaved data, use the other constructor.
         */
-        Pointer (typename Constness::VoidType* sourceData, int numInterleavedChannels) noexcept
-            : InterleavingType (numInterleavedChannels), data (Constness::toVoidPtr (sourceData))
+        Pointer (typename Constness::VoidType* sourceData, int numInterleaved) noexcept
+            : InterleavingType (numInterleaved), data (Constness::toVoidPtr (sourceData))
         {
         }
 

modules/juce_audio_formats/codecs/juce_AiffAudioFormat.cpp

@@ -792,8 +792,8 @@ private:
 class MemoryMappedAiffReader   : public MemoryMappedAudioFormatReader
 {
 public:
-    MemoryMappedAiffReader (const File& file, const AiffAudioFormatReader& reader)
-        : MemoryMappedAudioFormatReader (file, reader, reader.dataChunkStart,
+    MemoryMappedAiffReader (const File& f, const AiffAudioFormatReader& reader)
+        : MemoryMappedAudioFormatReader (f, reader, reader.dataChunkStart,
                                          reader.bytesPerFrame * reader.lengthInSamples, reader.bytesPerFrame),
           littleEndian (reader.littleEndian)
     {

modules/juce_audio_formats/format/juce_AudioFormatWriter.cpp

@@ -188,9 +188,9 @@ class AudioFormatWriter::ThreadedWriter::Buffer   : public AbstractFifo,
                                                     private TimeSliceClient
 {
 public:
-    Buffer (TimeSliceThread& tst, AudioFormatWriter* w, int channels, int bufferSize)
-        : AbstractFifo (bufferSize),
-          buffer (channels, bufferSize),
+    Buffer (TimeSliceThread& tst, AudioFormatWriter* w, int channels, int numSamples)
+        : AbstractFifo (numSamples),
+          buffer (channels, numSamples),
           timeSliceThread (tst),
           writer (w),
           receiver (nullptr),

modules/juce_audio_processors/scanning/juce_PluginListComponent.cpp

@@ -25,12 +25,12 @@
 PluginListComponent::PluginListComponent (AudioPluginFormatManager& manager,
                                           KnownPluginList& listToEdit,
                                           const File& deadMansPedal,
-                                          PropertiesFile* const properties)
+                                          PropertiesFile* const props)
     : formatManager (manager),
       list (listToEdit),
       deadMansPedalFile (deadMansPedal),
       optionsButton ("Options..."),
-      propertiesToUse (properties),
+      propertiesToUse (props),
       numThreads (0)
 {
     listBox.setModel (this);

modules/juce_opengl/opengl/juce_OpenGLContext.cpp

@@ -460,14 +460,14 @@ public:
     }
 
    #if JUCE_DEBUG || JUCE_LOG_ASSERTIONS
-    void componentBeingDeleted (Component& component) override
+    void componentBeingDeleted (Component& c) override
     {
         /* You must call detach() or delete your OpenGLContext to remove it
            from a component BEFORE deleting the component that it is using!
         */
         jassertfalse;
 
-        ComponentMovementWatcher::componentBeingDeleted (component);
+        ComponentMovementWatcher::componentBeingDeleted (c);
     }
    #endif
 

modules/juce_opengl/opengl/juce_OpenGLImage.cpp

@@ -25,8 +25,8 @@
 class OpenGLFrameBufferImage   : public ImagePixelData
 {
 public:
-    OpenGLFrameBufferImage (OpenGLContext& context_, int width, int height)
-        : ImagePixelData (Image::ARGB, width, height),
+    OpenGLFrameBufferImage (OpenGLContext& context_, int w, int h)
+        : ImagePixelData (Image::ARGB, w, h),
           context (context_),
           pixelStride (4),
           lineStride (width * pixelStride)