--- a/src/devices/wifi/aarfcd-wifi-manager.h	Thu May 27 08:34:16 2010 +0200
+++ a/src/devices/wifi/aarfcd-wifi-manager.h	Fri May 28 12:07:17 2010 +1000
@@ -24,7 +24,7 @@ 
 
 namespace ns3 {
 
-class AarfcdWifiRemoteStation;
+struct AarfcdWifiRemoteStation;
 
 /**
  * \brief an implementation of the AARF-CD algorithm
--- a/src/devices/wifi/amrr-wifi-manager.h	Thu May 27 08:34:16 2010 +0200
+++ a/src/devices/wifi/amrr-wifi-manager.h	Fri May 28 12:07:17 2010 +1000
@@ -25,7 +25,7 @@ 
 
 namespace ns3 {
 
-class AmrrWifiRemoteStation;
+struct AmrrWifiRemoteStation;
 
 /**
  * \brief AMRR Rate control algorithm
--- a/src/devices/wifi/minstrel-wifi-manager.h	Thu May 27 08:34:16 2010 +0200
+++ a/src/devices/wifi/minstrel-wifi-manager.h	Fri May 28 12:07:17 2010 +1000
@@ -39,7 +39,7 @@ 
 
 namespace ns3 {
 
-class MinstrelWifiRemoteStation;
+struct MinstrelWifiRemoteStation;
 
 
 class MinstrelWifiManager : public WifiRemoteStationManager
--- a/src/devices/wifi/onoe-wifi-manager.h	Thu May 27 08:34:16 2010 +0200
+++ a/src/devices/wifi/onoe-wifi-manager.h	Fri May 28 12:07:17 2010 +1000
@@ -25,7 +25,7 @@ 
 
 namespace ns3 {
 
-class OnoeWifiRemoteStation;
+struct OnoeWifiRemoteStation;
 
 /**
  * \brief an implementation of rate control algorithm developed 
--- a/src/devices/wifi/rraa-wifi-manager.h	Thu May 27 08:34:16 2010 +0200
+++ a/src/devices/wifi/rraa-wifi-manager.h	Fri May 28 12:07:17 2010 +1000
@@ -25,7 +25,7 @@ 
 
 namespace ns3 {
 
-class RraaWifiRemoteStation;
+struct RraaWifiRemoteStation;
 
 /**
  * \brief Robust Rate Adaptation Algorithm