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find_package(Doxygen)
IF(NOT DOXYGEN_FOUND)
MESSAGE(STATUS "No Doxygen found. Documentation won't be built")
ELSE()
file(GLOB SOURCES ${CMAKE_CURRENT_LIST_DIR}/../include/*)
file(GLOB MARKDOWN_DOC ${CMAKE_CURRENT_LIST_DIR}/../doc/*.md)
list(APPEND MARKDOWN_DOC ${CMAKE_CURRENT_LIST_DIR}/../readme.md)
CONFIGURE_FILE(Doxyfile.in Doxyfile @ONLY)
CONFIGURE_FILE(Doxyfile.zh-cn.in Doxyfile.zh-cn @ONLY)
add_custom_command(OUTPUT html
COMMAND ${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile
COMMAND ${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile.zh-cn
COMMAND ${CMAKE_COMMAND} -E touch ${CMAKE_CURRENT_BINARY_DIR}/html
DEPENDS ${MARKDOWN_DOC} ${SOURCES} ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile*
WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/../
)
add_custom_target(doc ALL DEPENDS html)
install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html
DESTINATION ${DOC_INSTALL_DIR}
COMPONENT doc)
ENDIF()
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