Getting it to compile on the mac.

xpcom/proxy/src/nsProxyEventObject.cpp

@@ -74,7 +74,7 @@ nsProxyEventObject::GetNewOrUsedProxy(PLEventQueue *destQueue,
     else
     {
         // build the root proxy
-        if (aObj = rootObject)
+        if (aObj == rootObject)
         {
             // the root will do double duty as the interface wrapper
             proxy = root = new nsProxyEventObject(destQueue, aObj, clazz, nsnull);

xpcom/proxy/src/nsProxyEventPrivate.h

@@ -98,11 +98,11 @@ public:
     virtual ~nsProxyEventObject();
 
 private:
-    nsProxyEventObject::nsProxyEventObject();   // not implemented
-    nsProxyEventObject::nsProxyEventObject(PLEventQueue *destQueue,
-                                           nsISupports* aObj,
-                                           nsProxyEventClass* aClass,
-                                           nsProxyEventObject* root);
+    nsProxyEventObject();   // not implemented
+    nsProxyEventObject(PLEventQueue *destQueue,
+                       nsISupports* aObj,
+    				   nsProxyEventClass* aClass,
+                       nsProxyEventObject* root);
 
 
     nsProxyObject*  mProxyObject;