message: Disable linkdef for qa class that depends on AliTPCCommon on EL6/etc. when AliTPCCommon is not available.
diff: #pragma link C++ class AliHLTAnalysisManager+;
  #pragma link C++ class AliHLTAnalysisManagerComponent+;
  #pragma link C++ class AliHLTLumiRegComponent+;
  -#pragma link C++ class AliHLTGlobalPromptRecoQAComponent+;
  #pragma link C++ class AliAnalysisTaskExampleV+;
  +#ifdef HAVE_ALITPCCOMMON
  +#pragma link C++ class AliHLTGlobalPromptRecoQAComponent+;
  +#endif
  #ifdef ZMQ
  #pragma link C++ class AliHLTZMQsink+;
  #pragma link C++ class AliHLTZMQsource+;
  