set(HEADERS_io
  ${CMAKE_CURRENT_SOURCE_DIR}/dolfin_io.h
  ${CMAKE_CURRENT_SOURCE_DIR}/cells.h
  ${CMAKE_CURRENT_SOURCE_DIR}/HDF5Interface.h
  ${CMAKE_CURRENT_SOURCE_DIR}/pugiconfig.hpp
  ${CMAKE_CURRENT_SOURCE_DIR}/pugixml.hpp
  ${CMAKE_CURRENT_SOURCE_DIR}/utils.h
  ${CMAKE_CURRENT_SOURCE_DIR}/VTKFile.h
  ${CMAKE_CURRENT_SOURCE_DIR}/XDMFFile.h
  ${CMAKE_CURRENT_SOURCE_DIR}/xdmf_function.h
  ${CMAKE_CURRENT_SOURCE_DIR}/xdmf_mesh.h
  ${CMAKE_CURRENT_SOURCE_DIR}/xdmf_meshtags.h
  ${CMAKE_CURRENT_SOURCE_DIR}/xdmf_read.h
  ${CMAKE_CURRENT_SOURCE_DIR}/xdmf_utils.h
  PARENT_SCOPE)

target_sources(dolfinx PRIVATE
  ${CMAKE_CURRENT_SOURCE_DIR}/cells.cpp
  ${CMAKE_CURRENT_SOURCE_DIR}/HDF5Interface.cpp
  ${CMAKE_CURRENT_SOURCE_DIR}/pugixml.cpp
  ${CMAKE_CURRENT_SOURCE_DIR}/VTKFile.cpp
  ${CMAKE_CURRENT_SOURCE_DIR}/utils.cpp
  ${CMAKE_CURRENT_SOURCE_DIR}/XDMFFile.cpp
  ${CMAKE_CURRENT_SOURCE_DIR}/xdmf_function.cpp
  ${CMAKE_CURRENT_SOURCE_DIR}/xdmf_mesh.cpp
  ${CMAKE_CURRENT_SOURCE_DIR}/xdmf_utils.cpp
)
