##########################################################################################
### EO Doc generation using Doxygen
##########################################################################################

IF (DOXYGEN_FOUND)

	SET(DOC_DIR ${CMAKE_BINARY_DIR}/doc CACHE PATH "EO documentation directory")
	SET(EO_DOC_CONFIG_FILE "eo.cfg" CACHE PATH "EO documentation configuration file")
	
	# Copy necessary doc files
	CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/index.h ${DOC_DIR}/index.h COPYONLY)
	FILE(GLOB header_files RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/*.htm*)
	FILE(GLOB pdf_files RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/*.pdf)
	FILE(GLOB jpg_files RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/*.jpg)
	FOREACH (file ${header_files} ${pdf_files} ${jpg_files})
	  CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/${file} ${DOC_DIR}/${file} COPYONLY)
	ENDFOREACH (file)
	
	# define the doc target
	IF (DOXYGEN_EXECUTABLE)
	    	ADD_CUSTOM_TARGET(doc
	        COMMAND ${DOXYGEN_EXECUTABLE} ${EO_DOC_CONFIG_FILE}
	        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
	    )
	ENDIF (DOXYGEN_EXECUTABLE)
	
	# configure cfg file
	CONFIGURE_FILE("${CMAKE_SOURCE_DIR}/doc/${EO_DOC_CONFIG_FILE}.cmake"
	               "${CMAKE_BINARY_DIR}/doc/${EO_DOC_CONFIG_FILE}")

ELSE (DOXYGEN_FOUND)
	MESSAGE(STATUS "Unable to generate the documentation, Doxygen package not found")	
ENDIF (DOXYGEN_FOUND)