--- a/src/devices/wifi/adhoc-wifi-mac.h	Mon Nov 30 19:25:04 2009 +0300
+++ b/src/devices/wifi/adhoc-wifi-mac.h	Mon Nov 30 18:20:30 2009 +0100
@@ -87,8 +87,8 @@
   AdhocWifiMac (const AdhocWifiMac & ctor_arg);
   AdhocWifiMac &operator = (const AdhocWifiMac &o);
   Ptr<DcaTxop> GetDcaTxop(void) const;
-  void TxOk (WifiMacHeader const &hdr);
-  void TxFailed (WifiMacHeader const &hdr);
+  void TxOk (const WifiMacHeader &hdr);
+  void TxFailed (const WifiMacHeader &hdr);
   virtual void FinishConfigureStandard (enum WifiPhyStandard standard);
   Ptr<DcaTxop> m_dca;
   Callback<void,Ptr<Packet>, Mac48Address, Mac48Address> m_upCallback;
@@ -98,8 +98,8 @@
   MacRxMiddle *m_rxMiddle;
   Ptr<MacLow> m_low;
   Ssid m_ssid;
-  TracedCallback<WifiMacHeader const &> m_txOkCallback;
-  TracedCallback<WifiMacHeader const &> m_txErrCallback;
+  TracedCallback<const WifiMacHeader &> m_txOkCallback;
+  TracedCallback<const WifiMacHeader &> m_txErrCallback;
 };
 
 } // namespace ns3