doxygen cmake
# first we can indicate the documentation build as an option and set it to ON by default
option(BUILD_DOC "Build documentation" ON)
# check if Doxygen is installed
find_package(Doxygen)
if (DOXYGEN_FOUND)
# set input and output files
set(DOXYGEN_IN ${CMAKE_CURRENT_SOURCE_DIR}/../docs/Doxyfile.in)
set(DOXYGEN_OUT ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile)
# request to configure the file
configure_file(${DOXYGEN_IN} ${DOXYGEN_OUT} @ONLY)
message("Doxygen build started")
# note the option ALL which allows to build the docs together with the application
add_custom_target( doc_doxygen ALL
COMMAND ${DOXYGEN_EXECUTABLE} ${DOXYGEN_OUT}
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
COMMENT "Generating API documentation with Doxygen"
VERBATIM )
else (DOXYGEN_FOUND)
message("Doxygen need to be installed to generate the doxygen documentation")
endif (DOXYGEN_FOUND)