diff --git a/src/html/htmlctrl/webkit/webkit.mm b/src/html/htmlctrl/webkit/webkit.mm
index bfd0a466e7..0fb20442c6 100644
--- a/src/html/htmlctrl/webkit/webkit.mm
+++ b/src/html/htmlctrl/webkit/webkit.mm
@@ -460,8 +460,10 @@ void wxWebKitCtrl::MacVisibilityChanged(){
 
 - (id)initWithWxWindow: (wxWebKitCtrl*)inWindow
 {
-    self = [super init];
-    webKitWindow = inWindow;    // non retained
+    if ( self = [super init] )
+    {
+        webKitWindow = inWindow;    // non retained
+    }
     return self;
 }
 
@@ -541,8 +543,10 @@ void wxWebKitCtrl::MacVisibilityChanged(){
 
 - (id)initWithWxWindow: (wxWebKitCtrl*)inWindow
 {
-    self = [super init];
-    webKitWindow = inWindow;    // non retained
+    if ( self = [super init] )
+    {
+        webKitWindow = inWindow;    // non retained
+    }
     return self;
 }
 
@@ -592,8 +596,10 @@ void wxWebKitCtrl::MacVisibilityChanged(){
 
 - (id)initWithWxWindow: (wxWebKitCtrl*)inWindow
 {
-    self = [super init];
-    webKitWindow = inWindow;    // non retained
+    if ( self = [super init] )
+    {
+        webKitWindow = inWindow;    // non retained
+    }
     return self;
 }
 
diff --git a/src/osx/carbon/colordlgosx.mm b/src/osx/carbon/colordlgosx.mm
index 9d3fddd0e2..495584f7f1 100644
--- a/src/osx/carbon/colordlgosx.mm
+++ b/src/osx/carbon/colordlgosx.mm
@@ -56,9 +56,10 @@ wxIMPLEMENT_DYNAMIC_CLASS(wxColourDialog, wxDialog);
 
 - (id)init
 {
-    self = [super init];
-    m_bIsClosed = false;
-
+    if ( self = [super init] )
+    {
+        m_bIsClosed = false;
+    }
     return self;
 }
 
diff --git a/src/osx/carbon/fontdlgosx.mm b/src/osx/carbon/fontdlgosx.mm
index d253a0a641..7168b5a484 100644
--- a/src/osx/carbon/fontdlgosx.mm
+++ b/src/osx/carbon/fontdlgosx.mm
@@ -61,9 +61,11 @@
 
 - (id)init
 {
-    [super init];
-    m_isUnderline = false;
-    m_isStrikethrough = false;
+    if (self = [super init])
+    {
+        m_isUnderline = false;
+        m_isStrikethrough = false;
+    }
     return self;
 }
 
@@ -118,37 +120,38 @@
 @implementation wxMacFontPanelAccView : NSView
 - (id)initWithFrame:(NSRect)rectBox
 {
-    [super initWithFrame:rectBox];
+    if ( self = [super initWithFrame:rectBox] )
+    {
+        wxCFStringRef cfOkString( wxT("OK"), wxLocale::GetSystemEncoding() );
+        wxCFStringRef cfCancelString( wxT("Cancel"), wxLocale::GetSystemEncoding() );
 
-    wxCFStringRef cfOkString( wxT("OK"), wxLocale::GetSystemEncoding() );
-    wxCFStringRef cfCancelString( wxT("Cancel"), wxLocale::GetSystemEncoding() );
+        NSRect rectCancel = NSMakeRect( (CGFloat) 10.0 , (CGFloat)10.0 , (CGFloat)82  , (CGFloat)24 );
+        NSRect rectOK = NSMakeRect( (CGFloat)100.0 , (CGFloat)10.0 , (CGFloat)82  , (CGFloat)24 );
 
-    NSRect rectCancel = NSMakeRect( (CGFloat) 10.0 , (CGFloat)10.0 , (CGFloat)82  , (CGFloat)24 );
-    NSRect rectOK = NSMakeRect( (CGFloat)100.0 , (CGFloat)10.0 , (CGFloat)82  , (CGFloat)24 );
+        NSButton* cancelButton = [[NSButton alloc] initWithFrame:rectCancel];
+        [cancelButton setTitle:(NSString*)wxCFRetain((CFStringRef)cfCancelString)];
+        [cancelButton setBezelStyle:NSRoundedBezelStyle];
+        [cancelButton setButtonType:NSMomentaryPushInButton];
+        [cancelButton setAction:@selector(cancelPressed:)];
+        [cancelButton setTarget:self];
+        m_cancelButton = cancelButton ;
 
-    NSButton* cancelButton = [[NSButton alloc] initWithFrame:rectCancel];
-    [cancelButton setTitle:(NSString*)wxCFRetain((CFStringRef)cfCancelString)];
-    [cancelButton setBezelStyle:NSRoundedBezelStyle];
-    [cancelButton setButtonType:NSMomentaryPushInButton];
-    [cancelButton setAction:@selector(cancelPressed:)];
-    [cancelButton setTarget:self];
-    m_cancelButton = cancelButton ;
-
-    NSButton* okButton = [[NSButton alloc] initWithFrame:rectOK];
-    [okButton setTitle:(NSString*)wxCFRetain((CFStringRef)cfOkString)];
-    [okButton setBezelStyle:NSRoundedBezelStyle];
-    [okButton setButtonType:NSMomentaryPushInButton];
-    [okButton setAction:@selector(okPressed:)];
-    [okButton setTarget:self];
-    // doesn't help either, the button is not highlighted after a color dialog has been used
-    // [okButton setKeyEquivalent:@"\r"];
-    m_okButton = okButton ;
+        NSButton* okButton = [[NSButton alloc] initWithFrame:rectOK];
+        [okButton setTitle:(NSString*)wxCFRetain((CFStringRef)cfOkString)];
+        [okButton setBezelStyle:NSRoundedBezelStyle];
+        [okButton setButtonType:NSMomentaryPushInButton];
+        [okButton setAction:@selector(okPressed:)];
+        [okButton setTarget:self];
+        // doesn't help either, the button is not highlighted after a color dialog has been used
+        // [okButton setKeyEquivalent:@"\r"];
+        m_okButton = okButton ;
 
 
-    [self addSubview:cancelButton];
-    [self addSubview:okButton];
+        [self addSubview:cancelButton];
+        [self addSubview:okButton];
 
-    [self resetFlags];
+        [self resetFlags];
+    }
     return self;
 }
 
@@ -318,9 +321,11 @@ wxIMPLEMENT_DYNAMIC_CLASS(wxFontDialog, wxDialog);
 
 - (id)init
 {
-    [super init];
-    m_bIsClosed = false;
-
+    if ( self = [super init] )
+    {
+        m_bIsClosed = false;
+    }
+    
     return self;
 }
 
@@ -362,10 +367,11 @@ wxIMPLEMENT_DYNAMIC_CLASS(wxFontDialog, wxDialog);
 
 - (id)init
 {
-    [super init];
-    m_bIsClosed = false;
-    m_bIsOpen = false;
-
+    if ( self = [super init] )
+    {
+        m_bIsClosed = false;
+        m_bIsOpen = false;
+    }
     return self;
 }
 
diff --git a/src/osx/cocoa/dataview.mm b/src/osx/cocoa/dataview.mm
index 9d8a5d26d4..ee1e7ff180 100644
--- a/src/osx/cocoa/dataview.mm
+++ b/src/osx/cocoa/dataview.mm
@@ -196,7 +196,7 @@ inline wxDataViewItem wxDataViewItemFromMaybeNilItem(id item)
 
 -(id) initWithColumnPointer:(const wxDataViewColumn*)column
 {
-    [self initWithIdentifier: [wxDVCNSTableColumn identifierForColumnPointer:column]];
+    self = [self initWithIdentifier: [wxDVCNSTableColumn identifierForColumnPointer:column]];
     return self;
 }
 
diff --git a/src/osx/cocoa/dnd.mm b/src/osx/cocoa/dnd.mm
index b63834a714..5f1059253a 100644
--- a/src/osx/cocoa/dnd.mm
+++ b/src/osx/cocoa/dnd.mm
@@ -73,11 +73,13 @@ wxDragResult NSDragOperationToWxDragResult(NSDragOperation code)
 
 - (id)init
 {
-    self = [super init];
-    dragFinished = NO;
-    resultCode = NSDragOperationNone;
-    impl = 0;
-    m_dragFlags = wxDrag_CopyOnly;
+    if ( self = [super init] )
+    {
+        dragFinished = NO;
+        resultCode = NSDragOperationNone;
+        impl = 0;
+        m_dragFlags = wxDrag_CopyOnly;
+    }
     return self;
 }
 
diff --git a/src/osx/cocoa/filedlg.mm b/src/osx/cocoa/filedlg.mm
index 3316b3e414..29ef2e531b 100644
--- a/src/osx/cocoa/filedlg.mm
+++ b/src/osx/cocoa/filedlg.mm
@@ -68,8 +68,10 @@
 
 - (id) init
 {
-    self = [super init];
-    _dialog = NULL;
+    if ( self = [super init] )
+    {
+        _dialog = NULL;
+    }
     return self;
 }
 
diff --git a/src/osx/cocoa/listbox.mm b/src/osx/cocoa/listbox.mm
index cad11b0f2e..df6b080595 100644
--- a/src/osx/cocoa/listbox.mm
+++ b/src/osx/cocoa/listbox.mm
@@ -160,8 +160,10 @@ protected :
 
 - (id) init
 {
-    self = [super init];
-    column = nil;
+    if ( self = [super init] )
+    {
+        column = nil;
+    }
     return self;
 }
 
@@ -223,8 +225,10 @@ protected:
 
 - (id) init
 {
-    self = [super init];
-    impl = nil;
+    if ( self = [super init] )
+    {
+        impl = nil;
+    }
     return self;
 }
 
diff --git a/src/osx/cocoa/mediactrl.mm b/src/osx/cocoa/mediactrl.mm
index aeb7f0da7f..db53f99778 100644
--- a/src/osx/cocoa/mediactrl.mm
+++ b/src/osx/cocoa/mediactrl.mm
@@ -134,13 +134,13 @@ private:
 
 - (id) init
 {
-    self = [super init];
-    
-    [self addObserver:self forKeyPath:@"currentItem.status"
+    if ( self = [super init] )
+    {
+        [self addObserver:self forKeyPath:@"currentItem.status"
                   options:NSKeyValueObservingOptionNew context:AVSPPlayerItemStatusContext];
-    [self addObserver:self forKeyPath:@"rate"
+        [self addObserver:self forKeyPath:@"rate"
               options:NSKeyValueObservingOptionNew context:AVSPPlayerRateContext];
-
+    }
     return self;
 }
 
@@ -257,13 +257,12 @@ private:
 
 - (id) initWithFrame:(CGRect)rect player:(wxAVPlayer*) player
 {
-    if ( !(self=[super initWithFrame:rect]) )
-        return nil;
-
-    AVPlayerLayer* playerLayer = (AVPlayerLayer*) [self layer];
-    [playerLayer setPlayer: player];
-    [player setPlayerLayer:playerLayer];
-
+    if ( self = [super initWithFrame:rect] )
+    {
+        AVPlayerLayer* playerLayer = (AVPlayerLayer*) [self layer];
+        [playerLayer setPlayer: player];
+        [player setPlayerLayer:playerLayer];
+    }
     return self;
 }
 
@@ -297,11 +296,10 @@ private:
 
 - (id) initWithFrame:(NSRect)rect player:(wxAVPlayer*) player
 {
-    if ( !(self=[super initWithFrame:rect]) )
-        return nil;
-    
-    self.player = player;
-    
+    if ( self = [super initWithFrame:rect] )
+    {
+        self.player = player;
+    }
     return self;
 }
 
@@ -334,17 +332,17 @@ private:
 
 - (id) initWithFrame:(NSRect)rect player:(wxAVPlayer*) player
 {
-    if ( !(self=[super initWithFrame:rect]) )
-        return nil;
+    if ( self = [super initWithFrame:rect] )
+    {
+        [self setWantsLayer:YES];
+        AVPlayerLayer* playerlayer = [[AVPlayerLayer playerLayerWithPlayer: player] retain];
+        [player setPlayerLayer:playerlayer];
+
+        [playerlayer setFrame:[[self layer] bounds]];
+        [playerlayer setAutoresizingMask:kCALayerWidthSizable | kCALayerHeightSizable];
+        [[self layer] addSublayer:playerlayer];
+    }
     
-    [self setWantsLayer:YES];
-    AVPlayerLayer* playerlayer = [[AVPlayerLayer playerLayerWithPlayer: player] retain];
-    [player setPlayerLayer:playerlayer];
-
-    [playerlayer setFrame:[[self layer] bounds]];
-    [playerlayer setAutoresizingMask:kCALayerWidthSizable | kCALayerHeightSizable];
-    [[self layer] addSublayer:playerlayer];
-
     return self;
 }
 
diff --git a/src/osx/cocoa/menu.mm b/src/osx/cocoa/menu.mm
index 8b6be54d26..0ec0225098 100644
--- a/src/osx/cocoa/menu.mm
+++ b/src/osx/cocoa/menu.mm
@@ -37,8 +37,10 @@
 
 - (id) initWithTitle:(NSString*) title
 {
-    self = [super initWithTitle:title];
-    impl = NULL;
+    if ( self = [super initWithTitle:title] )
+    {
+        impl = NULL;
+    }
     return self;
 }
 
diff --git a/src/osx/cocoa/notebook.mm b/src/osx/cocoa/notebook.mm
index f0d810275a..0a3862ac24 100644
--- a/src/osx/cocoa/notebook.mm
+++ b/src/osx/cocoa/notebook.mm
@@ -112,8 +112,11 @@
 @implementation WXCTabViewImageItem : NSTabViewItem
 - (id)init
 {
-    m_image = nil;
-    return [super initWithIdentifier:nil];
+    if (self = [super initWithIdentifier:nil])
+    {
+        m_image = nil;
+    }
+    return self;
 }
 - (void)dealloc
 {
diff --git a/src/osx/cocoa/textctrl.mm b/src/osx/cocoa/textctrl.mm
index 8d19af1e56..4f288f2375 100644
--- a/src/osx/cocoa/textctrl.mm
+++ b/src/osx/cocoa/textctrl.mm
@@ -130,9 +130,11 @@ NSView* wxMacEditHelper::ms_viewCurrentlyEdited = nil;
 
 - (id)init 
 {
-    self = [super init];
-    maxLength = 0;
-    forceUpper = false;
+    if ( self = [super init] )
+    {
+        maxLength = 0;
+        forceUpper = false;
+    }
     return self;
 }
 
@@ -495,8 +497,10 @@ NSView* wxMacEditHelper::ms_viewCurrentlyEdited = nil;
 
 - (id) initWithFrame:(NSRect) frame
 {
-    self = [super initWithFrame:frame];
-    fieldEditor = nil;
+    if ( self = [super initWithFrame:frame] )
+    {
+        fieldEditor = nil;
+    }
     return self;
 }
 
diff --git a/src/osx/cocoa/toolbar.mm b/src/osx/cocoa/toolbar.mm
index c449501144..209209fe10 100644
--- a/src/osx/cocoa/toolbar.mm
+++ b/src/osx/cocoa/toolbar.mm
@@ -368,10 +368,12 @@ private:
 
 - (id)initWithItemIdentifier: (NSString*) identifier
 {
-    self = [super initWithItemIdentifier:identifier];
-    impl = NULL;
-    [self setTarget: self];
-    [self setAction: @selector(clickedAction:)];
+    if ( self = [super initWithItemIdentifier:identifier] )
+    {
+        impl = NULL;
+        [self setTarget: self];
+        [self setAction: @selector(clickedAction:)];
+    }
     return self;
 }
 
@@ -406,8 +408,11 @@ private:
 
 - (id)init
 {
-    m_isSelectable = false;
-    return [super init];
+    if ( self = [super init] )
+    {
+        m_isSelectable = false;
+    }
+    return self;
 }
 
 - (void)setSelectable:(bool) value
@@ -469,8 +474,7 @@ private:
 
 - (id)initWithIdentifier:(NSString *)identifier
 {
-    self = [super initWithIdentifier:identifier];
-    if (self)
+    if (self = [super initWithIdentifier:identifier])
     {
         toolbarDelegate = [[wxNSToolbarDelegate alloc] init];
         [self setDelegate:toolbarDelegate];
@@ -492,10 +496,12 @@ private:
 
 - (id)initWithFrame:(NSRect)frame
 {
-    self = [super initWithFrame:frame];
-    impl = NULL;
-    [self setTarget: self];
-    [self setAction: @selector(clickedAction:)];
+    if ( self = [super initWithFrame:frame] )
+    {
+        impl = NULL;
+        [self setTarget: self];
+        [self setAction: @selector(clickedAction:)];
+    }
     return self;
 }
 
diff --git a/src/osx/cocoa/utils.mm b/src/osx/cocoa/utils.mm
index 7636672002..385abccefb 100644
--- a/src/osx/cocoa/utils.mm
+++ b/src/osx/cocoa/utils.mm
@@ -232,10 +232,12 @@ void wxBell()
 @implementation ModalDialogDelegate
 - (id)init
 {
-    self = [super init];
-    sheetFinished = NO;
-    resultCode = -1;
-    impl = 0;
+    if ( self = [super init] )
+    {
+        sheetFinished = NO;
+        resultCode = -1;
+        impl = 0;
+    }
     return self;
 }
 
@@ -336,8 +338,10 @@ void wxBell()
 
 - (id)init
 {
-    self = [super init];
-    firstPass = YES;
+    if ( self = [super init] )
+    {
+        firstPass = YES;
+    }
     return self;
 }
 
diff --git a/src/osx/cocoa/window.mm b/src/osx/cocoa/window.mm
index e1375beee7..3eb68e4a2d 100644
--- a/src/osx/cocoa/window.mm
+++ b/src/osx/cocoa/window.mm
@@ -1916,11 +1916,11 @@ double wxWidgetCocoaImpl::GetContentScaleFactor() const
 
 - (id)init:(wxWindow *)win
 {
-    self = [super init];
-
-    m_win = win;
-    m_isDone = false;
-
+    if ( self = [super init] )
+    {
+        m_win = win;
+        m_isDone = false;
+    }
     return self;
 }
 
diff --git a/src/osx/webview_webkit.mm b/src/osx/webview_webkit.mm
index 5eb143ed84..134b64d999 100644
--- a/src/osx/webview_webkit.mm
+++ b/src/osx/webview_webkit.mm
@@ -690,8 +690,10 @@ void wxWebViewWebKit::RegisterHandler(wxSharedPtr<wxWebViewHandler> handler)
 
 - (id)initWithWxWindow: (wxWebViewWebKit*)inWindow
 {
-    [super init];
-    webKitWindow = inWindow;    // non retained
+    if (self = [super init])
+    {
+        webKitWindow = inWindow;    // non retained
+    }
     return self;
 }
 
@@ -878,8 +880,10 @@ wxString nsErrorToWxHtmlError(NSError* error, wxWebViewNavigationError* out)
 
 - (id)initWithWxWindow: (wxWebViewWebKit*)inWindow
 {
-    [super init];
-    webKitWindow = inWindow;    // non retained
+    if (self = [super init])
+    {
+        webKitWindow = inWindow;    // non retained
+    }
     return self;
 }
 
@@ -1036,8 +1040,10 @@ wxString nsErrorToWxHtmlError(NSError* error, wxWebViewNavigationError* out)
 
 - (id)initWithWxWindow: (wxWebViewWebKit*)inWindow
 {
-    [super init];
-    webKitWindow = inWindow;    // non retained
+    if (self = [super init])
+    {
+        webKitWindow = inWindow;    // non retained
+    }
     return self;
 }