# Notes: # # Author: Paul Harris, June 2012 # Additions: Joakim Soderberg, Febuary 2013 # # Supports: building static/shared, release/debug/etc, can also build html docs # and some of the tests. # Note that its designed for out-of-tree builds, so it will not pollute your # source tree. # # TODO 1: Finish implementing tests. api tests are working, but the valgrind # variants are not flagging problems. # # TODO 2: There is a check_exports script that would try and incorporate. # # 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. # # Brief intro on how to use cmake: # > mkdir build (somewhere - we do out-of-tree builds) # > 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. # >> example: # >> cd build # >> ccmake -i ../path_to_jansson_dir # >> inside, configure your options. press C until there are no lines # with * next to them. # >> note, I like to configure the 'install' path to ../install, so I get # self-contained clean installs I can point other projects to. # >> press G to 'generate' the project files. # >> make (to build the project) # >> make install # >> make test (to run the tests, if you enabled them) # # Brief description on how it works: # There is a small heirachy of CMakeLists.txt files which define how the # project is built. # Header file detection etc is done, and the results are written into config.h # and jansson_config.h, which are generated from the corresponding # config.h.cmake and jansson_config.h.cmake template files. # The generated header files end up in the build directory - not in # the source directory. # The rest is down to the usual make process. cmake_minimum_required (VERSION 2.8) # required for exports? cmake_minimum_required (VERSION 2.8.6) project (jansson C) # Options OPTION (BUILD_SHARED_LIBS "Build shared libraries." OFF) OPTION (USE_URANDOM "Use /dev/urandom to seed the hash function." ON) OPTION (USE_WINDOWS_CRYPTOAPI "Use CryptGenRandom to seed the hash function." ON) if (MSVC) # This option must match the settings used in your program, in particular if you # are linking statically OPTION( STATIC_CRT "Link the static CRT libraries" OFF ) endif () # Set some nicer output dirs. SET(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/bin) SET(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/lib) SET(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/lib) # Give the debug version a different postfix for windows, # so both the debug and release version can be built in the # same build-tree on Windows (MSVC). if (WIN32) SET (CMAKE_DEBUG_POSTFIX "_d") else (WIN32) endif (WIN32) # This is how I thought it should go # set (JANSSON_VERSION "2.3.1") # set (JANSSON_SOVERSION 2) set(JANSSON_DISPLAY_VERSION "2.5") # This is what is required to match the same numbers as automake's set (JANSSON_VERSION "4.5.0") set (JANSSON_SOVERSION 4) # for CheckFunctionKeywords set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake") INCLUDE (CheckCSourceCompiles) include (CheckFunctionExists) include (CheckFunctionKeywords) include (CheckIncludeFiles) include (CheckTypeSize) if (MSVC) # Turn off Microsofts "security" warnings. add_definitions( "/W3 /D_CRT_SECURE_NO_WARNINGS /wd4005 /wd4996 /nologo" ) if (STATIC_CRT) set(CMAKE_C_FLAGS_RELEASE "/MT") set(CMAKE_C_FLAGS_DEBUG "/MTd") endif() endif() if (CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX) set(CMAKE_C_FLAGS "-fPIC") endif() check_include_files (endian.h HAVE_ENDIAN_H) check_include_files (fcntl.h HAVE_FCNTL_H) check_include_files (sched.h HAVE_SCHED_H) check_include_files (unistd.h HAVE_UNISTD_H) check_include_files (sys/param.h HAVE_SYS_PARAM_H) check_include_files (sys/stat.h HAVE_SYS_STAT_H) check_include_files (sys/time.h HAVE_SYS_TIME_H) check_include_files (sys/time.h HAVE_SYS_TYPES_H) check_function_exists (close HAVE_CLOSE) check_function_exists (getpid HAVE_GETPID) check_function_exists (gettimeofday HAVE_GETTIMEOFDAY) check_function_exists (open HAVE_OPEN) check_function_exists (read HAVE_READ) check_function_exists (sched_yield HAVE_SCHED_YIELD) # Check for the int-type includes check_include_files (stdint.h HAVE_STDINT_H) # Check our 64 bit integer sizes check_type_size (__int64 __INT64) check_type_size (int64_t INT64_T) check_type_size ("long long" LONG_LONG_INT) # Check our 32 bit integer sizes check_type_size (int32_t INT32_T) check_type_size (__int32 __INT32) check_type_size ("long" LONG_INT) check_type_size ("int" INT) if (HAVE_INT32_T) set (JSON_INT32 int32_t) elseif (HAVE___INT32) set (JSON_INT32 __int32) elseif (HAVE_LONG_INT AND (${LONG_INT} EQUAL 4)) set (JSON_INT32 long) elseif (HAVE_INT AND (${INT} EQUAL 4)) set (JSON_INT32 int) else () message (FATAL_ERROR "Could not detect a valid 32-bit integer type") endif () check_type_size (uint32_t UINT32_T) check_type_size (__uint32 __UINT32) check_type_size ("unsigned long" UNSIGNED_LONG_INT) check_type_size ("unsigned int" UNSIGNED_INT) if (HAVE_UINT32_T) set (JSON_UINT32 uint32_t) elseif (HAVE___UINT32) set (JSON_UINT32 __uint32) elseif (HAVE_UNSIGNED_LONG_INT AND (${UNSIGNED_LONG_INT} EQUAL 4)) set (JSON_UINT32 "unsigned long") elseif (HAVE_UNSIGNED_INT AND (${UNSIGNED_INT} EQUAL 4)) set (JSON_UINT32 "unsigned int") else () message (FATAL_ERROR "Could not detect a valid unsigned 32-bit integer type") endif () # Check for ssize_t and SSIZE_T existance. check_type_size(ssize_t SSIZE_T) check_type_size(SSIZE_T UPPERCASE_SSIZE_T) if(NOT HAVE_SSIZE_T) if(HAVE_UPPERCASE_SSIZE_T) set(JSON_SSIZE SSIZE_T) else() set(JSON_SSIZE int) endif() endif() set(CMAKE_EXTRA_INCLUDE_FILES "") # Check for all the variants of strtoll check_function_exists (strtoll HAVE_STRTOLL) check_function_exists (strtoq HAVE_STRTOQ) check_function_exists (_strtoi64 HAVE__STRTOI64) # Figure out what variant we should use if (HAVE_STRTOLL) set (JSON_STRTOINT strtoll) elseif (HAVE_STRTOQ) set (JSON_STRTOINT strtoq) elseif (HAVE__STRTOI64) set (JSON_STRTOINT _strtoi64) else () # fallback to strtol (32 bit) # this will set all the required variables set (JSON_STRTOINT strtol) set (JSON_INT_T long) set (JSON_INTEGER_FORMAT "\"ld\"") endif () # if we haven't defined JSON_INT_T, then we have a 64 bit conversion function. # detect what to use for the 64 bit type. # Note: I will prefer long long if I can get it, as that is what the automake system aimed for. if (NOT DEFINED JSON_INT_T) if (HAVE_LONG_LONG_INT AND (${LONG_LONG_INT} EQUAL 8)) set (JSON_INT_T "long long") elseif (HAVE_INT64_T) set (JSON_INT_T int64_t) elseif (HAVE___INT64) set (JSON_INT_T __int64) else () message (FATAL_ERROR "Could not detect 64 bit type, although I detected the strtoll equivalent") endif () # Apparently, Borland BCC and MSVC wants I64d, # Borland BCC could also accept LD # and gcc wants ldd, # I am not sure what cygwin will want, so I will assume I64d if (WIN32) # matches both msvc and cygwin set (JSON_INTEGER_FORMAT "\"I64d\"") else () set (JSON_INTEGER_FORMAT "\"lld\"") endif () endif () # If locale.h and localeconv() are available, define to 1, otherwise to 0. check_include_files (locale.h HAVE_LOCALE_H) check_function_exists (localeconv HAVE_LOCALECONV) if (HAVE_LOCALECONV AND HAVE_LOCALE_H) set (JSON_HAVE_LOCALECONV 1) else () set (JSON_HAVE_LOCALECONV 0) endif () # check if we have setlocale check_function_exists (setlocale HAVE_SETLOCALE) # Check what the inline keyword is. # Note that the original JSON_INLINE was always set to just 'inline', so this goes further. check_function_keywords("inline") check_function_keywords("__inline") check_function_keywords("__inline__") if (HAVE_INLINE) set (JSON_INLINE inline) elseif (HAVE___INLINE) set (JSON_INLINE __inline) elseif (HAVE___INLINE__) set (JSON_INLINE __inline__) else (HAVE_INLINE) # no inline on this platform set (JSON_INLINE) endif (HAVE_INLINE) # Find our snprintf check_function_exists (snprintf HAVE_SNPRINTF) check_function_exists (_snprintf HAVE__SNPRINTF) if (HAVE_SNPRINTF) set (JSON_SNPRINTF snprintf) elseif (HAVE__SNPRINTF) set (JSON_SNPRINTF _snprintf) endif () check_c_source_compiles ("int main() { unsigned long val; __sync_bool_compare_and_swap(&val, 0, 1); return 0; } " HAVE_SYNC_BUILTINS) check_c_source_compiles ("int main() { char l; unsigned long v; __atomic_test_and_set(&l, __ATOMIC_RELAXED); __atomic_store_n(&v, 1, __ATOMIC_ACQ_REL); __atomic_load_n(&v, __ATOMIC_ACQUIRE); return 0; }" HAVE_ATOMIC_BUILTINS) # Create pkg-conf file. # (We use the same files as ./configure does, so we # have to defined the same variables used there). if(NOT DEFINED CMAKE_INSTALL_LIBDIR) set(CMAKE_INSTALL_LIBDIR lib) endif(NOT DEFINED CMAKE_INSTALL_LIBDIR) set(prefix ${CMAKE_INSTALL_PREFIX}) set(exec_prefix ${CMAKE_INSTALL_PREFIX}) set(libdir ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}) set(VERSION ${JANSSON_DISPLAY_VERSION}) configure_file(${CMAKE_CURRENT_SOURCE_DIR}/jansson.pc.in ${CMAKE_CURRENT_BINARY_DIR}/jansson.pc @ONLY) # configure the public config file configure_file (${CMAKE_CURRENT_SOURCE_DIR}/cmake/jansson_config.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/include/jansson_config.h) # Copy the jansson.h file to the public include folder file (COPY ${CMAKE_CURRENT_SOURCE_DIR}/src/jansson.h DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/include/) # configure the private config file configure_file (${CMAKE_CURRENT_SOURCE_DIR}/cmake/config.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/private_include/config.h) # and tell the source code to include it add_definitions (-DHAVE_CONFIG_H) include_directories (${CMAKE_CURRENT_BINARY_DIR}/include) include_directories (${CMAKE_CURRENT_BINARY_DIR}/private_include) # Add the lib sources. file (GLOB C_FILES src/*.c) if (BUILD_SHARED_LIBS) add_library (jansson SHARED ${C_FILES} src/jansson.def) set_target_properties (jansson PROPERTIES VERSION ${JANSSON_VERSION} SOVERSION ${JANSSON_SOVERSION}) else () add_library (jansson ${C_FILES}) endif () # LIBRARY for linux # RUNTIME for windows (when building shared) install (TARGETS jansson ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} RUNTIME DESTINATION bin ) install (FILES ${CMAKE_CURRENT_BINARY_DIR}/include/jansson_config.h ${CMAKE_CURRENT_SOURCE_DIR}/src/jansson.h DESTINATION include) install (FILES ${CMAKE_CURRENT_BINARY_DIR}/jansson.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig) # For building Documentation (uses Sphinx) OPTION (BUILD_DOCS "Build documentation (uses python-sphinx)." ON) if (BUILD_DOCS) find_package(Sphinx) if (NOT SPHINX_FOUND) message(WARNING "Sphinx not found. Cannot generate documentation! Set -DBUILD_DOCS=0 to get rid of this message.") else() if (Sphinx_VERSION_STRING VERSION_LESS 1.0) message(WARNING "Your Sphinx version is too old! This project requires Sphinx v1.0 or above to produce proper documentation (you have v${Sphinx_VERSION_STRING}). You will get output but it will have errors.") endif() # configured documentation tools and intermediate build results set(BINARY_BUILD_DIR "${CMAKE_CURRENT_BINARY_DIR}/_build") # Sphinx cache with pickled ReST documents set(SPHINX_CACHE_DIR "${CMAKE_CURRENT_BINARY_DIR}/_doctrees") # CMake could be used to build the conf.py file too, # eg it could automatically write the version of the program or change the theme. # if(NOT DEFINED SPHINX_THEME) # set(SPHINX_THEME default) # endif() # # if(NOT DEFINED SPHINX_THEME_DIR) # set(SPHINX_THEME_DIR) # endif() # # configure_file( # "${CMAKE_CURRENT_SOURCE_DIR}/conf.py.in" # "${BINARY_BUILD_DIR}/conf.py" # @ONLY) # TODO: Add support for all sphinx builders: http://sphinx-doc.org/builders.html # Add documentation targets. set(DOC_TARGETS html) OPTION(BUILD_MAN "Create a target for building man pages." ON) if (BUILD_MAN) if (Sphinx_VERSION_STRING VERSION_LESS 1.0) message(WARNING "Sphinx version 1.0 > is required to build man pages. You have v${Sphinx_VERSION_STRING}.") else() list(APPEND DOC_TARGETS man) endif() endif() OPTION(BUILD_LATEX "Create a target for building latex docs (to create PDF)." OFF) if (BUILD_LATEX) find_package(LATEX) if (NOT LATEX_COMPILER) message("Couldn't find Latex, can't build latex docs using Sphinx") else() message("Latex found! If you have problems building, see Sphinx documentation for required Latex packages.") list(APPEND DOC_TARGETS latex) endif() endif() # The doc target will build all documentation targets. add_custom_target(doc) foreach (DOC_TARGET ${DOC_TARGETS}) add_custom_target(${DOC_TARGET} ${SPHINX_EXECUTABLE} # -q # Enable for quiet mode -b ${DOC_TARGET} -d "${SPHINX_CACHE_DIR}" # -c "${BINARY_BUILD_DIR}" # enable if using cmake-generated conf.py "${CMAKE_CURRENT_SOURCE_DIR}/doc" "${CMAKE_CURRENT_BINARY_DIR}/doc/${DOC_TARGET}" COMMENT "Building ${DOC_TARGET} documentation with Sphinx") add_dependencies(doc ${DOC_TARGET}) endforeach() message("Building documentation enabled for: ${DOC_TARGETS}") endif() endif () OPTION (WITHOUT_TESTS "Don't build tests ('make test' to execute tests)" OFF) if (NOT WITHOUT_TESTS) OPTION (TEST_WITH_VALGRIND "Enable valgrind tests." OFF) ENABLE_TESTING() if (TEST_WITH_VALGRIND) # TODO: Add FindValgrind.cmake instead of having a hardcoded path. # enable valgrind set(CMAKE_MEMORYCHECK_COMMAND valgrind) set(CMAKE_MEMORYCHECK_COMMAND_OPTIONS "--leak-check=full --show-reachable=yes --track-origins=yes -q") set(MEMCHECK_COMMAND "${CMAKE_MEMORYCHECK_COMMAND} ${CMAKE_MEMORYCHECK_COMMAND_OPTIONS}") separate_arguments(MEMCHECK_COMMAND) endif () # # Test suites. # if (CMAKE_COMPILER_IS_GNUCC) add_definitions(-Wall -Wextra -Wdeclaration-after-statement -Werror) endif () set(api_tests test_array test_copy test_dump test_dump_callback test_equal test_load test_loadb test_number test_object test_pack test_simple test_unpack) # Doing arithmetic on void pointers is not allowed by Microsofts compiler # such as secure_malloc and secure_free is doing, so exclude it for now. if (NOT MSVC) list(APPEND api_tests test_memory_funcs) endif() # Helper macro for building and linking a test program. macro(build_testprog name dir) add_executable(${name} ${dir}/${name}.c) add_dependencies(${name} jansson) target_link_libraries(${name} jansson) endmacro(build_testprog) # Create executables and tests/valgrind tests for API tests. foreach (test ${api_tests}) build_testprog(${test} ${PROJECT_SOURCE_DIR}/test/suites/api) add_test(${test} ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${test}) if (TEST_WITH_VALGRIND) add_test(memcheck_${test} ${MEMCHECK_COMMAND} ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${test}) endif () endforeach () # Test harness for the suites tests. build_testprog(json_process ${PROJECT_SOURCE_DIR}/test/bin) set(SUITES encoding-flags valid invalid invalid-unicode) foreach (SUITE ${SUITES}) file(GLOB TESTDIRS ${jansson_SOURCE_DIR}/test/suites/${SUITE}/*) foreach (TESTDIR ${TESTDIRS}) if (IS_DIRECTORY ${TESTDIR}) get_filename_component(TNAME ${TESTDIR} NAME) add_test(${SUITE}__${TNAME} ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/json_process ${TESTDIR}) if ((${SUITE} STREQUAL "valid" OR ${SUITE} STREQUAL "invalid") AND NOT EXISTS ${TESTDIR}/nostrip) add_test(${SUITE}__${TNAME}__strip ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/json_process --strip ${TESTDIR}) endif () endif () endforeach () endforeach () add_custom_target(check COMMAND ${CMAKE_CTEST_COMMAND} DEPENDS json_process ${api_tests}) endif ()