macosx: use NSInvocation on this 10.5 method.

modules/gui/macosx/embeddedwindow.m

@@ -44,12 +44,26 @@
 - (id)initWithContentRect:(NSRect)contentRect styleMask:(unsigned int)windowStyle backing:(NSBackingStoreType)bufferingType defer:(BOOL)deferCreation
 {
     if(MACOS_VERSION < 10.5f)
-        return [super initWithContentRect:contentRect styleMask:windowStyle backing:bufferingType defer:deferCreation];
-
-    windowStyle ^= NSTexturedBackgroundWindowMask;
-    self = [super initWithContentRect:contentRect styleMask:windowStyle backing:bufferingType defer:deferCreation];
-    [self setContentBorderThickness:32.0 forEdge:NSMinYEdge];
-
+    {
+        self = [super initWithContentRect:contentRect styleMask:windowStyle backing:bufferingType defer:deferCreation];
+    } else {
+        SEL theSelector;
+        NSMethodSignature *aSignature;
+        NSInvocation *anInvocation;
+        float f_value = 32.0f;
+        NSRectEdge ouredge = NSMinYEdge;
+
+        windowStyle ^= NSTexturedBackgroundWindowMask;
+        self = [super initWithContentRect:contentRect styleMask:windowStyle backing:bufferingType defer:deferCreation];
+
+        theSelector = @selector(setContentBorderThickness:forEdge:);
+        aSignature = [VLCEmbeddedWindow instanceMethodSignatureForSelector:theSelector];
+        anInvocation = [NSInvocation invocationWithMethodSignature:aSignature];
+        [anInvocation setSelector:theSelector];
+        [anInvocation setTarget:self];
+        [anInvocation setArgument:&f_value atIndex:2]; /* FIXME it's actually CGFLoat */
+        [anInvocation setArgument:&ouredge atIndex:3];
+    }
     return self;
 }