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# GtkDoc.cmake
#
# Macros to support develper documentation build from sources with gtk-doc.
#
# Note that every target and dependency should be defined before the macro is
# called, because it uses information from those targets.
#
# add_gtkdoc(_module _namespace _deprecated_guards _srcdirsvar _depsvar _ignoreheadersvar)
# Adds rules to build developer documentation using gtk-doc for some part.
# Arguments:
# _module - the module name, like 'camel'; it expects ${_part}-docs.sgml.in in the CMAKE_CURRENT_SOURCE_DIR
# _namespace - namespace for symbols
# _deprecated_guards - define name, which guards deprecated symbols
# _srcdirsvar - variable with dirs where the source files are located
# _depsvar - a variable with dependencies (targets)
# _ignoreheadersvar - a variable with a set of header files to ignore
#
# It also adds custom target gtkdoc-rebuild-${_module}-sgml to rebuild the sgml.in
# file based on the current sources.
option(ENABLE_GTK_DOC "Use gtk-doc to build documentation" True)
if(NOT ENABLE_GTK_DOC)
return()
endif()
find_program(GTKDOC_SCAN gtkdoc-scan)
find_program(GTKDOC_SCANGOBJ gtkdoc-scangobj)
find_program(GTKDOC_MKDB gtkdoc-mkdb)
find_program(GTKDOC_MKHTML gtkdoc-mkhtml)
find_program(GTKDOC_FIXXREF gtkdoc-fixxref)
if(NOT (GTKDOC_SCAN AND GTKDOC_MKDB AND GTKDOC_MKHTML AND GTKDOC_FIXXREF))
message(FATAL_ERROR "Cannot find all gtk-doc binaries, install them or use -DENABLE_GTK_DOC=OFF instead")
return()
endif()
if(NOT TARGET gtkdocs)
add_custom_target(gtkdocs ALL)
endif()
if(NOT TARGET gtkdoc-rebuild-sgmls)
add_custom_target(gtkdoc-rebuild-sgmls)
endif()
macro(add_gtkdoc _module _namespace _deprecated_guards _srcdirsvar _depsvar _ignoreheadersvar)
configure_file(
${CMAKE_CURRENT_SOURCE_DIR}/${_module}-docs.sgml.in
${CMAKE_CURRENT_BINARY_DIR}/${_module}-docs.sgml
@ONLY)
set(OUTPUT_DOCDIR ${SHARE_INSTALL_DIR}/gtk-doc/html/${_module})
set(_filedeps)
set(_srcdirs)
foreach(_srcdir ${${_srcdirsvar}})
set(_srcdirs ${_srcdirs} --source-dir="${_srcdir}")
file(GLOB _files ${_srcdir}/*.h* ${_srcdir}/*.c*)
list(APPEND _filedeps ${_files})
endforeach()
if(APPLE)
if(NOT DEFINED ENV{XML_CATALOG_FILES})
message(FATAL_ERROR "On OSX, please run \'export XML_CATALOG_FILES=/usr/local/etc/xml/catalog\' first; else the gtk entities cannot be located.")
endif()
endif()
set(_scangobj_deps)
set(_scangobj_cflags_list)
set(_scangobj_cflags "")
set(_scangobj_ldflags "")
set(_scangobj_ld_lib_dirs "")
foreach(opt IN LISTS ${_depsvar})
if(TARGET ${opt})
set(_target_type)
get_target_property(_target_type ${opt} TYPE)
if((_target_type STREQUAL "STATIC_LIBRARY") OR (_target_type STREQUAL "SHARED_LIBRARY") OR (_target_type STREQUAL "MODULE_LIBRARY"))
set(_compile_options)
set(_link_libraries)
get_target_property(_compile_options ${opt} COMPILE_OPTIONS)
get_target_property(_link_libraries ${opt} LINK_LIBRARIES)
list(APPEND _scangobj_cflags_list ${_compile_options})
list(APPEND _scangobj_deps ${_link_libraries})
unset(_compile_options)
unset(_link_libraries)
endif()
unset(_target_type)
endif()
list(APPEND _scangobj_deps ${opt})
endforeach()
# Add it as the last, thus in-tree headers have precedence
list(APPEND _scangobj_cflags_list -I${INCLUDE_INSTALL_DIR})
if(_scangobj_deps)
list(REMOVE_DUPLICATES _scangobj_deps)
endif()
if(_scangobj_cflags_list)
list(REMOVE_DUPLICATES _scangobj_cflags_list)
endif()
foreach(opt IN LISTS _scangobj_cflags_list)
set(_scangobj_cflags "${_scangobj_cflags} ${opt}")
endforeach()
foreach(opt IN LISTS _scangobj_deps)
if(TARGET ${opt})
set(_target_type)
get_target_property(_target_type ${opt} TYPE)
if((_target_type STREQUAL "STATIC_LIBRARY") OR (_target_type STREQUAL "SHARED_LIBRARY") OR (_target_type STREQUAL "MODULE_LIBRARY"))
set(_output_name "")
get_target_property(_output_name ${opt} OUTPUT_NAME)
if(NOT _output_name)
set(_output_name ${opt})
endif()
set(_scangobj_ldflags "${_scangobj_ldflags} -L$<TARGET_FILE_DIR:${opt}> -l${_output_name}")
if(_target_type STREQUAL "SHARED_LIBRARY" OR (_target_type STREQUAL "MODULE_LIBRARY"))
set(_scangobj_ld_lib_dirs "${_scangobj_ld_lib_dirs}:$<TARGET_FILE_DIR:${opt}>")
endif()
unset(_output_name)
endif()
unset(_target_type)
endif()
endforeach()
# Add extra flags from LDFLAGS environment variable
set(_scangobj_ldflags "${_scangobj_ldflags} ${CMAKE_SHARED_LINKER_FLAGS}")
foreach(opt IN LISTS _scangobj_deps)
if(NOT TARGET ${opt})
set(_scangobj_ldflags "${_scangobj_ldflags} ${opt}")
endif()
endforeach()
# Add it as the last, thus in-tree libs have precedence
set(_scangobj_ldflags "${_scangobj_ldflags} -L${LIB_INSTALL_DIR}")
set(_scangobj_prefix ${CMAKE_COMMAND} -E env LD_LIBRARY_PATH="${_scangobj_ld_lib_dirs}:${LIB_INSTALL_DIR}:$ENV{LD_LIBRARY_PATH}")
# if(NOT (_scangobj_cflags STREQUAL ""))
# set(_scangobj_cflags --cflags "${_scangobj_cflags}")
# endif()
# if(NOT (_scangobj_ldflags STREQUAL ""))
# set(_scangobj_ldflags "--ldflags ${_scangobj_ldflags}")
# endif()
add_custom_command(OUTPUT html/index.html
COMMAND ${GTKDOC_SCAN}
--module=${_module}
--deprecated-guards="${_deprecated_guards}"
--ignore-headers="${${_ignoreheadersvar}}"
--rebuild-sections
--rebuild-types
${_srcdirs}
COMMAND ${CMAKE_COMMAND} -E chdir "${CMAKE_CURRENT_BINARY_DIR}" ${_scangobj_prefix} ${GTKDOC_SCANGOBJ}
--module=${_module}
--cflags=${_scangobj_cflags}
--ldflags=${_scangobj_ldflags}
COMMAND ${GTKDOC_MKDB}
--module=${_module}
--name-space=${_namespace}
--main-sgml-file="${CMAKE_CURRENT_BINARY_DIR}/${_module}-docs.sgml"
--sgml-mode
--output-format=xml
${_srcdirs}
COMMAND ${CMAKE_COMMAND} -E make_directory "${CMAKE_CURRENT_BINARY_DIR}/html"
COMMAND ${CMAKE_COMMAND} -E chdir "${CMAKE_CURRENT_BINARY_DIR}/html" ${GTKDOC_MKHTML} --path=.. ${_module} ../${_module}-docs.sgml
COMMAND ${GTKDOC_FIXXREF}
--module=${_module}
--module-dir=html
--extra-dir=..
--html-dir="${OUTPUT_DOCDIR}"
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/${_module}-docs.sgml"
${_filedeps}
COMMENT "Generating ${_module} documentation"
)
add_custom_target(gtkdoc-${_module}
DEPENDS html/index.html
)
if(${_depsvar})
add_dependencies(gtkdoc-${_module} ${${_depsvar}})
endif(${_depsvar})
add_dependencies(gtkdocs gtkdoc-${_module})
install(
DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html/
DESTINATION ${OUTPUT_DOCDIR}
)
# ***************************************
# sgml.in file rebuild, unconditional
# ***************************************
add_custom_target(gtkdoc-rebuild-${_module}-sgml
COMMAND ${CMAKE_COMMAND} -E remove_directory "${CMAKE_CURRENT_BINARY_DIR}/tmp"
COMMAND ${CMAKE_COMMAND} -E make_directory "${CMAKE_CURRENT_BINARY_DIR}/tmp"
COMMAND ${CMAKE_COMMAND} -E chdir "${CMAKE_CURRENT_BINARY_DIR}/tmp"
${GTKDOC_SCAN}
--module=${_module}
--deprecated-guards="${_deprecated_guards}"
--ignore-headers="${_ignore_headers}"
--rebuild-sections
--rebuild-types
${_srcdirs}
COMMAND ${CMAKE_COMMAND} -E chdir "${CMAKE_CURRENT_BINARY_DIR}" ${_scangobj_prefix} ${GTKDOC_SCANGOBJ}
--module=${_module}
${_scangobj_cflags}
${_scangobj_ldflags}
COMMAND ${CMAKE_COMMAND} -E chdir "${CMAKE_CURRENT_BINARY_DIR}/tmp"
${GTKDOC_MKDB}
--module=${_module}
--name-space=${_namespace}
--main-sgml-file="${CMAKE_CURRENT_BINARY_DIR}/tmp/${_module}-docs.sgml"
--sgml-mode
--output-format=xml
${_srcdirs}
COMMAND ${CMAKE_COMMAND} -E rename ${CMAKE_CURRENT_BINARY_DIR}/tmp/${_module}-docs.sgml ${CMAKE_CURRENT_SOURCE_DIR}/${_module}-docs.sgml.in
COMMAND ${CMAKE_COMMAND} -E echo "File '${CMAKE_CURRENT_SOURCE_DIR}/${_module}-docs.sgml.in' overwritten, make sure you replace generated strings with proper content before committing."
)
add_dependencies(gtkdoc-rebuild-sgmls gtkdoc-rebuild-${_module}-sgml)
unset(_scangobj_prefix)
unset(_scangobj_deps)
unset(_scangobj_cflags_list)
unset(_scangobj_cflags)
unset(_scangobj_ldflags)
unset(_scangobj_ld_lib_dirs)
endmacro()
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