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277 lines
8.9 KiB
277 lines
8.9 KiB
12 years ago
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# Notes:
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#
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# Author: Paul Harris, June 2012
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#
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# Supports: building static/shared, release/debug/etc, can also build html docs and some of the tests.
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# Note that its designed for out-of-tree builds, so it will not pollute your source tree.
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#
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# TODO 1: Finish implementing tests. api tests are working, but the valgrind variants are not flagging problems.
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#
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# TODO 2: There is a check_exports script that would try and incorporate.
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#
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# TODO 3: Consolidate version numbers, currently the version number is written into: * cmake (here) * autotools (the configure) * source code header files. Should not be written directly into header files, autotools/cmake can do that job.
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#
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# Brief intro on how to use cmake:
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# > mkdir build (somewhere - we do out-of-tree builds)
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# > use cmake, ccmake, or cmake-gui to configure the project. for linux, you can only choose one variant: release,debug,etc... and static or shared.
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# >> example:
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# >> cd build
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# >> ccmake -i ../path_to_jansson_dir
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# >> inside, configure your options. press C until there are no lines with * next to them.
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# >> note, I like to configure the 'install' path to ../install, so I get self-contained clean installs I can point other projects to.
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# >> press G to 'generate' the project files.
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# >> make (to build the project)
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# >> make install
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# >> make test (to run the tests, if you enabled them)
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#
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# Brief description on how it works:
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# There is a small heirachy of CMakeLists.txt files which define how the project is built.
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# Header file detection etc is done, and the results are written into config.h and jansson_config.h,
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# which are generated from the corresponding config.h.cmake and jansson_config.h.cmake template files.
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# The generated header files end up in the build directory - not in the source directory.
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# The rest is down to the usual make process.
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cmake_minimum_required (VERSION 2.8)
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# required for exports? cmake_minimum_required (VERSION 2.8.6)
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project (jansson C)
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# Options
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OPTION (BUILD_SHARED_LIBS "Build shared libraries." OFF)
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# This is how I thought it should go
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# set (JANSSON_VERSION "2.3.1")
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# set (JANSSON_SOVERSION 2)
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# This is what is required to match the same numbers as automake's
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set (JANSSON_VERSION "4.3.1")
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set (JANSSON_SOVERSION 4)
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# for CheckFunctionKeywords
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set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/CMakeModules")
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include (CheckFunctionExists)
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include (CheckFunctionKeywords)
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include (CheckIncludeFiles)
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include (CheckTypeSize)
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# Check for the int-type includes
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check_include_files (sys/types.h HAVE_SYS_TYPES_H)
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check_include_files (inttypes.h HAVE_INTTYPES_H)
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check_include_files (stdint.h HAVE_STDINT_H)
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# Check our 64 bit integer sizes
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check_type_size (__int64 __INT64)
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check_type_size (int64_t INT64_T)
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check_type_size ("long long" LONG_LONG_INT)
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# Check our 32 bit integer sizes
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check_type_size (int32_t INT32_T)
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check_type_size (__int32 __INT32)
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check_type_size ("long" LONG_INT)
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check_type_size ("int" INT)
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if (HAVE___INT32)
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set (JSON_INT32 __int32)
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elseif (HAVE_LONG AND (${LONG_INT} EQUAL 4))
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set (JSON_INT32 long)
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elseif (HAVE_INT AND (${INT} EQUAL 4))
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set (JSON_INT32 int)
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elseif (HAVE_INT32_T)
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set (JSON_INT32 int32_t)
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else ()
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message (FATAL_ERROR "Could not detect a valid 32 bit integer type")
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endif ()
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# Check if we have int32_t, if not then we will use long (in config.h.cmake)
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check_type_size (int32_t INT32_T)
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# Check for all the variants of strtoll
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check_function_exists (strtoll HAVE_STRTOLL)
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check_function_exists (strtoq HAVE_STRTOQ)
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check_function_exists (_strtoi64 HAVE__STRTOI64)
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# Figure out what variant we should use
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if (HAVE_STRTOLL)
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set (JSON_STRTOINT strtoll)
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elseif (HAVE_STRTOQ)
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set (JSON_STRTOINT strtoq)
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elseif (HAVE__STRTOI64)
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set (JSON_STRTOINT _strtoi64)
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else ()
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# fallback to strtol (32 bit)
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# this will set all the required variables
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set (JSON_STRTOINT strtol)
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set (JSON_INT_T long)
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set (JSON_INTEGER_FORMAT "\"ld\"")
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endif ()
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# if we haven't defined JSON_INT_T, then we have a 64 bit conversion function.
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# detect what to use for the 64 bit type.
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# Note: I will prefer long long if I can get it, as that is what the automake system aimed for.
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if (NOT DEFINED JSON_INT_T)
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if (HAVE_LONG_LONG_INT AND (${LONG_LONG_INT} EQUAL 8))
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set (JSON_INT_T "long long")
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elseif (HAVE_INT64_T)
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set (JSON_INT_T int64_t)
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elseif (HAVE___INT64)
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set (JSON_INT_T __int64)
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else ()
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message (FATAL_ERROR "Could not detect 64 bit type, although I detected the strtoll equivalent")
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endif ()
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# Apparently, Borland BCC and MSVC wants I64d,
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# Borland BCC could also accept LD
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# and gcc wants ldd,
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# I am not sure what cygwin will want, so I will assume I64d
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if (WIN32) # matches both msvc and cygwin
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set (JSON_INTEGER_FORMAT "\"I64d\"")
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else ()
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set (JSON_INTEGER_FORMAT "\"lld\"")
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endif ()
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endif ()
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# If locale.h and localeconv() are available, define to 1, otherwise to 0.
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check_include_files (locale.h HAVE_LOCALE_H)
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check_function_exists (localeconv HAVE_LOCALECONV)
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if (HAVE_LOCALECONV AND HAVE_LOCALE_H)
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set (JSON_HAVE_LOCALECONV 1)
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else ()
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set (JSON_HAVE_LOCALECONV 0)
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endif ()
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# check if we have setlocale
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check_function_exists (setlocale HAVE_SETLOCALE)
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# Check what the inline keyword is.
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# Note that the original JSON_INLINE was always set to just 'inline', so this goes further.
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check_function_keywords("inline")
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check_function_keywords("__inline")
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check_function_keywords("__inline__")
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# check_function_keywords("__declspec(dllexport)")
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# check_function_keywords("__declspec(dllimport)")
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if (HAVE_INLINE)
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set (JSON_INLINE inline)
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elseif (HAVE___INLINE)
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set (JSON_INLINE __inline)
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elseif (HAVE___INLINE__)
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set (JSON_INLINE __inline__)
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else (HAVE_INLINE)
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# no inline on this platform
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set (JSON_INLINE)
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endif (HAVE_INLINE)
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# Find our snprintf
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check_function_exists (snprintf HAVE_SNPRINTF)
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# check_function_exists (_snprintf_s HAVE__SNPRINTF_s)
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check_function_exists (_snprintf HAVE__SNPRINTF)
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if (HAVE_SNPRINTF)
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set (JSON_SNPRINTF snprintf)
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# elseif (HAVE__SNPRINTF_s)
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# set (JSON_SNPRINTF _snprintf_s)
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elseif (HAVE__SNPRINTF)
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set (JSON_SNPRINTF _snprintf)
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endif ()
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if (MSVC)
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set (CMAKE_DEBUG_POSTFIX "_d")
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endif (MSVC)
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# configure the public config file
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configure_file (${CMAKE_CURRENT_SOURCE_DIR}/src/jansson_config.h.cmake
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${CMAKE_CURRENT_BINARY_DIR}/include/jansson_config.h)
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# Copy the jansson.h file to the public include folder
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file (COPY ${CMAKE_CURRENT_SOURCE_DIR}/src/jansson.h
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DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/include/)
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# configure the private config file
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configure_file (${CMAKE_CURRENT_SOURCE_DIR}/config.h.cmake
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${CMAKE_CURRENT_BINARY_DIR}/private_include/config.h)
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# and tell the source code to include it
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add_definitions (-DHAVE_CONFIG_H)
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include_directories (${CMAKE_CURRENT_BINARY_DIR}/include)
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include_directories (${CMAKE_CURRENT_BINARY_DIR}/private_include)
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add_subdirectory (src)
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install (FILES ${CMAKE_CURRENT_BINARY_DIR}/include/jansson_config.h DESTINATION include)
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install (FILES ${CMAKE_CURRENT_SOURCE_DIR}/src/jansson.h DESTINATION include)
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# For building Documentation (uses Sphinx)
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OPTION (BUILD_DOCS "Build documentation (uses python-sphinx)." OFF)
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if (BUILD_DOCS)
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find_package(Sphinx REQUIRED)
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# configured documentation tools and intermediate build results
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set(BINARY_BUILD_DIR "${CMAKE_CURRENT_BINARY_DIR}/_build")
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# Sphinx cache with pickled ReST documents
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set(SPHINX_CACHE_DIR "${CMAKE_CURRENT_BINARY_DIR}/_doctrees")
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# HTML output directory
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set(SPHINX_HTML_DIR "${CMAKE_CURRENT_BINARY_DIR}/html")
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# CMake could be used to build the conf.py file too,
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# eg it could automatically write the version of the program or change the theme.
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# if(NOT DEFINED SPHINX_THEME)
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# set(SPHINX_THEME default)
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# endif()
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#
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# if(NOT DEFINED SPHINX_THEME_DIR)
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# set(SPHINX_THEME_DIR)
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# endif()
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#
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# configure_file(
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# "${CMAKE_CURRENT_SOURCE_DIR}/conf.py.in"
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# "${BINARY_BUILD_DIR}/conf.py"
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# @ONLY)
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add_custom_target(jansson_docs ALL
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${SPHINX_EXECUTABLE}
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# -q # Enable for quiet mode
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-b html
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-d "${SPHINX_CACHE_DIR}"
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# -c "${BINARY_BUILD_DIR}" # enable if using cmake-generated conf.py
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"${CMAKE_CURRENT_SOURCE_DIR}/doc"
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"${SPHINX_HTML_DIR}"
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COMMENT "Building HTML documentation with Sphinx")
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message (STATUS "Documentation has been built in ${SPHINX_HTML_DIR}")
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endif ()
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OPTION (BUILD_TESTS "Build tests ('make test' to execute tests)" OFF)
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if (BUILD_TESTS)
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OPTION (TEST_WITH_VALGRIND "Enable valgrind tests (TODO flag when something is wrong, currently will always pass)" OFF)
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ENABLE_TESTING()
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if (TEST_WITH_VALGRIND)
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# enable valgrind
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set (CMAKE_MEMORYCHECK_COMMAND /usr/bin/valgrind)
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set (CMAKE_MEMORYCHECK_COMMAND_OPTIONS "--leak-check=full --show-reachable=yes --track-origins=yes -q")
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set(MEMCHECK_COMMAND "${CMAKE_MEMORYCHECK_COMMAND} ${CMAKE_MEMORYCHECK_COMMAND_OPTIONS}")
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separate_arguments(MEMCHECK_COMMAND)
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endif ()
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add_subdirectory (test/suites/api)
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endif ()
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