message: Disable CheckTasks() in ROOT 6
  Since the introduction of automatic library loading and rootmaps, this
  functionality should not be needed any longer, see
diff: @@ -1728,7 +1728,7 @@ void AliAnalysisManager::CheckBranches(Bool_t load)
  Bool_t AliAnalysisManager::CheckTasks() const
  {
  /// Check consistency of tasks.
  -
  + #if ROOT_VERSION_CODE < ROOT_VERSION(5, 99, 0)
  Int_t ntasks = fTasks->GetEntries();
  if (!ntasks) {
  Error("CheckTasks", "No tasks connected to the manager. This may be due to forgetting to compile the task or to load their library.");
  @@ -1746,6 +1746,7 @@ Bool_t AliAnalysisManager::CheckTasks() const
  return kFALSE;
  }
  }
  + #endif
  return kTRUE;
  }
  