ADD_ELXCOMPONENT( VarianceOverLastDimensionMetric
 elxVarianceOverLastDimensionMetric.h
 elxVarianceOverLastDimensionMetric.hxx
 elxVarianceOverLastDimensionMetric.cxx
 itkVarianceOverLastDimensionImageMetric.h
 itkVarianceOverLastDimensionImageMetric.hxx
 )