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# Use FindDoxygen.cmake to generate documentation.
option(DOXYGEN_GENERATE_HTML "Generate HTML" ON)
option(DOXYGEN_GENERATE_MAN "Generate man pages" OFF)
option(DOXYGEN_MAN_LINKS "Generate man links" ON)
option(DOXYGEN_GENERATE_LATEX "Generate LaTeX" OFF)
# If the case-insensitive value of the cmake option is one of
# "off, no, false" or 0, it is equal to false, otherwise true.
# And the values of the doxygen config does not exactly match it.
# So we need to convert the cmake option to a doxygen config.
macro(_convert_to_dx_cfg CMK_OPTION)
if (${CMK_OPTION})
set(${CMK_OPTION} YES)
else()
set(${CMK_OPTION} NO)
endif()
endmacro()
macro(UseDoxygen)
if (${CMAKE_VERSION} VERSION_LESS "3.9")
# Old versions of cmake have poor support for Doxygen generation.
message(FATAL_ERROR "Doxygen generation only enabled for cmake 3.9 and higher")
else()
find_package(Doxygen)
if (DOXYGEN_FOUND)
set(DOXYGEN_PROJECT_NAME ${PROJECT_NAME})
set(DOXYGEN_PROJECT_NUMBER ${EVENT_PACKAGE_VERSION})
set(DOXYGEN_PROJECT_BRIEF "Event notification library")
set(DOXYGEN_OUTPUT_DIRECTORY doxygen)
set(DOXYGEN_STRIP_FROM_PATH include)
set(DOXYGEN_JAVADOC_AUTOBRIEF YES)
set(DOXYGEN_OPTIMIZE_OUTPUT_FOR_C YES)
set(DOXYGEN_SORT_BRIEF_DOCS YES)
set(DOXYGEN_RECURSIVE NO)
_convert_to_dx_cfg(DOXYGEN_GENERATE_HTML)
_convert_to_dx_cfg(DOXYGEN_GENERATE_MAN)
_convert_to_dx_cfg(DOXYGEN_MAN_LINKS)
_convert_to_dx_cfg(DOXYGEN_GENERATE_LATEX)
set(DOXYGEN_LATEX_CMD_NAME latex)
set(DOXYGEN_PAPER_TYPE a4wide)
set(DOXYGEN_PDF_HYPERLINKS NO)
set(DOXYGEN_GENERATE_RTF NO)
set(DOXYGEN_GENERATE_XML NO)
set(DOXYGEN_GENERATE_CHI NO)
set(DOXYGEN_PREDEFINED TAILQ_ENTRY
RB_ENTRY
EVENT_DEFINED_TQENTRY_
EVENT_IN_DOXYGEN_
)
set(DOX_INPUT include/event2/buffer.h
include/event2/buffer_compat.h
include/event2/bufferevent.h
include/event2/bufferevent_compat.h
include/event2/bufferevent_ssl.h
include/event2/dns.h
include/event2/dns_compat.h
include/event2/event.h
include/event2/event_compat.h
include/event2/http.h
include/event2/http_compat.h
include/event2/listener.h
include/event2/rpc.h
include/event2/rpc_compat.h
include/event2/tag.h
include/event2/tag_compat.h
include/event2/thread.h
include/event2/util.h
)
# Add 'doxygen' target
doxygen_add_docs(doxygen
${DOX_INPUT}
ALL
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
COMMENT "Generating doxygen documentation for ${PROJECT_NAME}..."
)
# Use 'make clean' to remove the generated directory
set_property(DIRECTORY
PROPERTY ADDITIONAL_MAKE_CLEAN_FILES
"${PROJECT_BINARY_DIR}/${DOXYGEN_OUTPUT_DIRECTORY}"
)
# Install html into <prefix>/share/doc/<project>
if ("${DOXYGEN_GENERATE_HTML}" STREQUAL "YES")
install(DIRECTORY
${PROJECT_BINARY_DIR}/${DOXYGEN_OUTPUT_DIRECTORY}/html
DESTINATION ${CMAKE_INSTALL_PREFIX}/share/doc/${PROJECT_NAME}
COMPONENT doc
)
endif()
# Install manual into <prefix>/share/man/man3
if ("${DOXYGEN_GENERATE_MAN}" STREQUAL "YES")
install(DIRECTORY
${PROJECT_BINARY_DIR}/${DOXYGEN_OUTPUT_DIRECTORY}/man/man3
DESTINATION ${CMAKE_INSTALL_PREFIX}/share/man
COMPONENT doc
)
endif()
else(DOXYGEN_FOUND)
message(FATAL_ERROR "Doxygen command not found, set EVENT__DOXYGEN to disable")
endif (DOXYGEN_FOUND)
endif()
endmacro()
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