#pragma link off all globals;
#pragma link off all classes;
#pragma link off all functions;

#pragma link C++ class AliChaoticity+;
#pragma link C++ class AliThreePionRadii+;
#pragma link C++ class AliChaoticityEventCollection+;
#pragma link C++ class AliChaoticityEventStruct+;
#pragma link C++ class AliChaoticityTrackStruct+;
#pragma link C++ class AliChaoticityMCStruct+;
#pragma link C++ class AliChaoticityPairStruct+;
#pragma link C++ class AliChaoticityNormPairStruct+;

#pragma link off all globals;
#pragma link off all classes;
#pragma link off all functions;

#pragma link C++ class AliChaoticity+;
#pragma link C++ class AliThreePionRadii+;
#pragma link C++ class AliChaoticityEventCollection+;
#pragma link C++ class AliChaoticityEventStruct+;
#pragma link C++ class AliChaoticityTrackStruct+;
#pragma link C++ class AliChaoticityMCStruct+;
#pragma link C++ class AliChaoticityPairStruct+;
#pragma link C++ class AliChaoticityNormPairStruct+;

#pragma link C++ class AliFourPion+;
#pragma link C++ class AliFourPionEventCollection+;
#pragma link C++ class AliFourPionEventStruct+;
#pragma link C++ class AliFourPionTrackStruct+;
#pragma link C++ class AliFourPionMCStruct+;

Update compile code for 4-pion analysis
Update compile code for 4-pion analysis
