message: linux dlerror msg
diff: @@ -159,6 +159,9 @@ AliHLTTPCCATrackerFramework::AliHLTTPCCATrackerFramework(int allowGPU) : fGPULib
  {
  printf("Error Opening cagpu library\n");
  fGPUTracker = new AliHLTTPCCAGPUTracker;
  +#ifndef R__WIN32
  + printf("%d\n", dlerror());
  +#endif
  }
  else
  {
  