{
  gSystem->SetIncludePath(" -I/data/user/dbesson/gsl-1.16/ ");
  .L /data/user/dbesson/gsl-1.16/.libs/libgsl.so;
  .L /data/user/dbesson/gsl-1.16/cblas/.libs/libgslcblas.so;
  .L Vtx4Hit.C++;
}