diff --git a/examples/BLOCKS/BlocksDrawingDemo.h b/examples/BLOCKS/BlocksDrawingDemo.h
index a2b241785e..5ea9708c25 100644
--- a/examples/BLOCKS/BlocksDrawingDemo.h
+++ b/examples/BLOCKS/BlocksDrawingDemo.h
@@ -305,7 +305,7 @@ public:
 
        #if JUCE_IOS
         connectButton.setButtonText ("Connect");
-        connectButton.onClick = [this] { BluetoothMidiDevicePairingDialogue::open(); };
+        connectButton.onClick = [] { BluetoothMidiDevicePairingDialogue::open(); };
         connectButton.setAlwaysOnTop (true);
         addAndMakeVisible (connectButton);
        #endif
diff --git a/examples/BLOCKS/BlocksMonitorDemo.h b/examples/BLOCKS/BlocksMonitorDemo.h
index 9c064ffac8..7c32040b70 100644
--- a/examples/BLOCKS/BlocksMonitorDemo.h
+++ b/examples/BLOCKS/BlocksMonitorDemo.h
@@ -597,7 +597,7 @@ public:
 
        #if JUCE_IOS
         connectButton.setButtonText ("Connect");
-        connectButton.onClick = [this] { BluetoothMidiDevicePairingDialogue::open(); };
+        connectButton.onClick = [] { BluetoothMidiDevicePairingDialogue::open(); };
         connectButton.setAlwaysOnTop (true);
         addAndMakeVisible (connectButton);
        #endif
diff --git a/examples/BLOCKS/BlocksSynthDemo.h b/examples/BLOCKS/BlocksSynthDemo.h
index b2ab1e1c6b..3476b759d4 100644
--- a/examples/BLOCKS/BlocksSynthDemo.h
+++ b/examples/BLOCKS/BlocksSynthDemo.h
@@ -596,7 +596,7 @@ public:
 
        #if JUCE_IOS
         connectButton.setButtonText ("Connect");
-        connectButton.onClick = [this] { BluetoothMidiDevicePairingDialogue::open(); };
+        connectButton.onClick = [] { BluetoothMidiDevicePairingDialogue::open(); };
         addAndMakeVisible (connectButton);
        #endif
 
diff --git a/examples/DemoRunner/Builds/iOS/DemoRunner.xcodeproj/project.pbxproj b/examples/DemoRunner/Builds/iOS/DemoRunner.xcodeproj/project.pbxproj
index 7d6730e02b..1aee579b01 100644
--- a/examples/DemoRunner/Builds/iOS/DemoRunner.xcodeproj/project.pbxproj
+++ b/examples/DemoRunner/Builds/iOS/DemoRunner.xcodeproj/project.pbxproj
@@ -255,6 +255,7 @@
 				INFOPLIST_FILE = Info-App.plist;
 				INFOPLIST_PREPROCESS = NO;
 				INSTALL_PATH = "$(HOME)/Applications";
+				OTHER_CPLUSPLUSFLAGS = "-Wall -Wshadow -Wno-missing-field-initializers -Wshadow -Wshorten-64-to-32 -Wstrict-aliasing -Wuninitialized -Wunused-parameter -Wconversion -Wsign-compare -Wint-conversion -Wconditional-uninitialized -Woverloaded-virtual -Wreorder -Wconstant-conversion -Wsign-conversion  -Wunused-private-field -Wbool-conversion -Wextra-semi -Wno-ignored-qualifiers -Wunreachable-code";
 				PRODUCT_BUNDLE_IDENTIFIER = com.roli.juce.demorunner;
 				USE_HEADERMAP = NO; }; name = Debug; };
 		69330F27DD2C71609336C7D2 = {isa = XCBuildConfiguration; buildSettings = {
@@ -291,6 +292,7 @@
 				INFOPLIST_PREPROCESS = NO;
 				INSTALL_PATH = "$(HOME)/Applications";
 				LLVM_LTO = YES;
+				OTHER_CPLUSPLUSFLAGS = "-Wall -Wshadow -Wno-missing-field-initializers -Wshadow -Wshorten-64-to-32 -Wstrict-aliasing -Wuninitialized -Wunused-parameter -Wconversion -Wsign-compare -Wint-conversion -Wconditional-uninitialized -Woverloaded-virtual -Wreorder -Wconstant-conversion -Wsign-conversion  -Wunused-private-field -Wbool-conversion -Wextra-semi -Wno-ignored-qualifiers -Wunreachable-code";
 				PRODUCT_BUNDLE_IDENTIFIER = com.roli.juce.demorunner;
 				USE_HEADERMAP = NO; }; name = Release; };
 		C01EC82F42B640CA1E54AD53 = {isa = XCBuildConfiguration; buildSettings = {
diff --git a/examples/DemoRunner/DemoRunner.jucer b/examples/DemoRunner/DemoRunner.jucer
index 82b019bb89..03a22f3935 100644
--- a/examples/DemoRunner/DemoRunner.jucer
+++ b/examples/DemoRunner/DemoRunner.jucer
@@ -122,7 +122,7 @@
     <XCODE_IPHONE targetFolder="Builds/iOS" iosScreenOrientation="landscape" iPadScreenOrientation="landscape"
                   UISupportsDocumentBrowser="1" microphonePermissionNeeded="1"
                   iCloudPermissions="1" UIFileSharingEnabled="1" customXcodeResourceFolders="../Assets"
-                  smallIcon="YyqWd2" bigIcon="YyqWd2">
+                  smallIcon="YyqWd2" bigIcon="YyqWd2" extraCompilerFlags="-Wall -Wshadow -Wno-missing-field-initializers -Wshadow -Wshorten-64-to-32 -Wstrict-aliasing -Wuninitialized -Wunused-parameter -Wconversion -Wsign-compare -Wint-conversion -Wconditional-uninitialized -Woverloaded-virtual -Wreorder -Wconstant-conversion -Wsign-conversion  -Wunused-private-field -Wbool-conversion -Wextra-semi -Wno-ignored-qualifiers -Wunreachable-code">
       <CONFIGURATIONS>
         <CONFIGURATION isDebug="1" name="Debug"/>
         <CONFIGURATION isDebug="0" name="Release"/>
diff --git a/examples/DemoRunner/Source/Main.cpp b/examples/DemoRunner/Source/Main.cpp
index 34bf46f92a..71379fba93 100644
--- a/examples/DemoRunner/Source/Main.cpp
+++ b/examples/DemoRunner/Source/Main.cpp
@@ -93,6 +93,8 @@ public:
         // (This function call is for one of the demos, which involves launching a child process)
         if (invokeChildProcessDemo (commandLine))
             return;
+      #else
+        ignoreUnused (commandLine);
       #endif
 
         mainWindow.reset (new MainAppWindow (getApplicationName()));
diff --git a/modules/juce_core/files/juce_File.cpp b/modules/juce_core/files/juce_File.cpp
index 331701b7df..6f3eb0b1ec 100644
--- a/modules/juce_core/files/juce_File.cpp
+++ b/modules/juce_core/files/juce_File.cpp
@@ -971,6 +971,7 @@ bool File::createSymbolicLink (const File& linkFileToCreate,
                                nativePathOfTarget.toWideCharPointer(),
                                targetFile.isDirectory() ? SYMBOLIC_LINK_FLAG_DIRECTORY : 0) != FALSE;
    #else
+    ignoreUnused (nativePathOfTarget);
     jassertfalse; // symbolic links not supported on this platform!
     return false;
    #endif
diff --git a/modules/juce_gui_basics/native/juce_ios_Windowing.mm b/modules/juce_gui_basics/native/juce_ios_Windowing.mm
index 6a2d337328..ce7135f257 100644
--- a/modules/juce_gui_basics/native/juce_ios_Windowing.mm
+++ b/modules/juce_gui_basics/native/juce_ios_Windowing.mm
@@ -135,7 +135,7 @@ namespace juce
             }
         }];
 
-        MessageManager::callAsync ([self,application,app]  { app->suspended(); });
+        MessageManager::callAsync ([app] { app->suspended(); });
        #else
         ignoreUnused (application);
         app->suspended();