Disable copy contructors

src/emu/model/emu-net-device.h

@@ -212,6 +212,8 @@ public:
   EmuNetDevice::EncapsulationMode  GetEncapsulationMode (void) const;
 
 private:
+  EmuNetDevice (const EmuNetDevice &);
+  EmuNetDevice & operator= (const EmuNetDevice &);
 
   virtual void DoDispose (void);
 

src/wifi/model/regular-wifi-mac.h

@@ -313,6 +313,9 @@ protected:
   /** Get accessor for the \c m_qosSupported member */
   bool GetQosSupported () const;
 private:
+  RegularWifiMac (const RegularWifiMac &);
+  RegularWifiMac & operator= (const RegularWifiMac &);
+
   /**
    * This method is a private utility invoked to configure the channel
    * access function for the specified Access Category.