#####
# Build doxygen documentation, if need be.
#####
IF(ENABLE_DOXYGEN)

  FILE(GLOB COPY_FILES ${CMAKE_CURRENT_SOURCE_DIR}/*.html ${CMAKE_CURRENT_SOURCE_DIR}/images ${CMAKE_CURRENT_SOURCE_DIR}/*.doc ${CMAKE_CURRENT_SOURCE_DIR}/*.xml ${CMAKE_CURRENT_SOURCE_DIR}/*.m4 ${CMAKE_CURRENT_SOURCE_DIR}/*.texi)
  FILE(COPY ${COPY_FILES} DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/)
  # Copy the image files used by markdown documentation
  # manually.
  FILE(GLOB IMG_FILES ${CMAKE_CURRENT_BINARY_DIR}/images/*.jpg)

  # Set abs_top_srcdir to work with autotools doxyfile template.
  SET(abs_top_srcdir "${CMAKE_SOURCE_DIR}")
  SET(abs_builddir "${CMAKE_CURRENT_BINARY_DIR}")

  CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile.in
    ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile @ONLY)
  ADD_CUSTOM_TARGET(doc ALL
    ${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile
    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
    COMMENT "Generating API Documentation with Doxygen" VERBATIM
    )
  FILE(COPY ${IMG_FILES} DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/html/)
ENDIF()

SET(CUR_EXTRA_DIST ${CUR_EXTRA_DIST} CMakeLists.txt Makefile.am netcdf.m4 DoxygenLayout.xml Doxyfile.in footer.html mainpage.doc tutorial.doc install.doc dispatch.doc guide.doc types.doc notes.doc cdl.doc architecture.doc internal.doc Doxyfile.in.cmake windows-binaries.md Building-with-CMake.md)

ADD_EXTRA_DIST("${CUR_EXTRA_DIST}")