set(DOCUMENTATION
    "This module contains classes for deformable image
registration based on intensity differences by solving the PDE, optical flow
problem.  This includes Thirion's popular \"demons\" algorithm.")

set(_FFTW_DEPENDS)
if(ITK_USE_FFTWF OR ITK_USE_FFTWD)
  set(_FFTW_DEPENDS "ITKFFT")
endif()

itk_module(
  ITKPDEDeformableRegistration
  ENABLE_SHARED
  DEPENDS
  ${_FFTW_DEPENDS}
  ITKRegistrationCommon
  ITKFiniteDifference
  TEST_DEPENDS
  ITKTestKernel
  DESCRIPTION
  "${DOCUMENTATION}")