find_package(Doxygen)

if(DOXYGEN_FOUND)

message(STATUS "Build OOPS Documentation")

include(GNUInstallDirs)

# set input and output files

set(DOXYGEN_IN ${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile.in)

set(DOXYGEN_OUT ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile)

# request to configure the file

configure_file(${DOXYGEN_IN} ${DOXYGEN_OUT} @ONLY)

# note the option ALL which allows to build the docs together with the application

add_custom_target( doc_doxygen_oops ALL

COMMAND ${DOXYGEN_EXECUTABLE} ${DOXYGEN_OUT}

WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}

COMMENT "Generating OOPS documentation with Doxygen"

VERBATIM )

set( HTML_BUILD_DIR ${CMAKE_CURRENT_BINARY_DIR}/html )

install(DIRECTORY ${HTML_BUILD_DIR} DESTINATION ${CMAKE_INSTALL_FULL_DATADIR}/${PROJECT_NAME}/doc COMPONENT Documentation)

else()

message(WARNING "Build OOPS Documentation failure to find Doxygen")

endif()