mirror of https://github.com/DaveGamble/cJSON
284 lines
10 KiB
CMake
284 lines
10 KiB
CMake
set(CMAKE_LEGACY_CYGWIN_WIN32 0)
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cmake_minimum_required(VERSION 3.0)
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project(cJSON
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VERSION 1.7.17
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LANGUAGES C)
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cmake_policy(SET CMP0054 NEW) # set CMP0054 policy
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include(GNUInstallDirs)
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set(CJSON_VERSION_SO 1)
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set(CJSON_UTILS_VERSION_SO 1)
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set(custom_compiler_flags)
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include(CheckCCompilerFlag)
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option(ENABLE_CUSTOM_COMPILER_FLAGS "Enables custom compiler flags" ON)
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if (ENABLE_CUSTOM_COMPILER_FLAGS)
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if (("${CMAKE_C_COMPILER_ID}" STREQUAL "Clang") OR ("${CMAKE_C_COMPILER_ID}" STREQUAL "GNU"))
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list(APPEND custom_compiler_flags
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-std=c89
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-pedantic
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-Wall
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-Wextra
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-Werror
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-Wstrict-prototypes
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-Wwrite-strings
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-Wshadow
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-Winit-self
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-Wcast-align
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-Wformat=2
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-Wmissing-prototypes
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-Wstrict-overflow=2
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-Wcast-qual
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-Wundef
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-Wswitch-default
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-Wconversion
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-Wc++-compat
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-fstack-protector-strong
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-Wcomma
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-Wdouble-promotion
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-Wparentheses
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-Wformat-overflow
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-Wunused-macros
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-Wmissing-variable-declarations
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-Wused-but-marked-unused
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-Wswitch-enum
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)
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elseif("${CMAKE_C_COMPILER_ID}" STREQUAL "MSVC")
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# Disable warning c4001 - nonstandard extension 'single line comment' was used
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# Define _CRT_SECURE_NO_WARNINGS to disable deprecation warnings for "insecure" C library functions
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list(APPEND custom_compiler_flags
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/GS
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/Za
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/sdl
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/W4
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/wd4001
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/D_CRT_SECURE_NO_WARNINGS
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)
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endif()
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endif()
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option(ENABLE_SANITIZERS "Enables AddressSanitizer and UndefinedBehaviorSanitizer." OFF)
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if (ENABLE_SANITIZERS)
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list(APPEND custom_compiler_flags
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-fno-omit-frame-pointer
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-fsanitize=address
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-fsanitize=undefined
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-fsanitize=float-cast-overflow
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-fsanitize-address-use-after-scope
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-fsanitize=integer
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-01
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-fno-sanitize-recover
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)
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endif()
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option(ENABLE_SAFE_STACK "Enables the SafeStack instrumentation pass by the Code Pointer Integrity Project" OFF)
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if (ENABLE_SAFE_STACK)
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if (ENABLE_SANITIZERS)
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message(FATAL_ERROR "ENABLE_SAFE_STACK cannot be used in combination with ENABLE_SANITIZERS")
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endif()
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list(APPEND custom_compiler_flags
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-fsanitize=safe-stack
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)
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endif()
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option(ENABLE_PUBLIC_SYMBOLS "Export library symbols." On)
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if (ENABLE_PUBLIC_SYMBOLS)
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list(APPEND custom_compiler_flags -fvisibility=hidden)
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add_definitions(-DCJSON_EXPORT_SYMBOLS -DCJSON_API_VISIBILITY)
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endif()
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option(ENABLE_HIDDEN_SYMBOLS "Hide library symbols." Off)
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if (ENABLE_HIDDEN_SYMBOLS)
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add_definitions(-DCJSON_HIDE_SYMBOLS -UCJSON_API_VISIBILITY)
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endif()
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# apply custom compiler flags
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foreach(compiler_flag ${custom_compiler_flags})
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#remove problematic characters
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string(REGEX REPLACE "[^a-zA-Z0-9]" "" current_variable ${compiler_flag})
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CHECK_C_COMPILER_FLAG(${compiler_flag} "FLAG_SUPPORTED_${current_variable}")
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if (FLAG_SUPPORTED_${current_variable})
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list(APPEND supported_compiler_flags)
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${compiler_flag}")
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endif()
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endforeach()
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${supported_compiler_flags}")
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option(BUILD_SHARED_LIBS "Build shared libraries" ON)
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option(ENABLE_TARGET_EXPORT "Enable exporting of CMake targets. Disable when it causes problems!" ON)
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#cJSON
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set(CJSON_LIB cjson)
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file(GLOB HEADERS cJSON.h)
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set(SOURCES cJSON.c)
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option(BUILD_SHARED_AND_STATIC_LIBS "Build both shared and static libraries" Off)
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option(CJSON_OVERRIDE_BUILD_SHARED_LIBS "Override BUILD_SHARED_LIBS with CJSON_BUILD_SHARED_LIBS" OFF)
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option(CJSON_BUILD_SHARED_LIBS "Overrides BUILD_SHARED_LIBS if CJSON_OVERRIDE_BUILD_SHARED_LIBS is enabled" ON)
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option(ENABLE_CJSON_VERSION_SO "Enables cJSON so version" ON)
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if ((CJSON_OVERRIDE_BUILD_SHARED_LIBS AND CJSON_BUILD_SHARED_LIBS) OR ((NOT CJSON_OVERRIDE_BUILD_SHARED_LIBS) AND BUILD_SHARED_LIBS))
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set(CJSON_LIBRARY_TYPE SHARED)
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else()
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set(CJSON_LIBRARY_TYPE STATIC)
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endif()
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if (NOT BUILD_SHARED_AND_STATIC_LIBS)
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add_library("${CJSON_LIB}" "${CJSON_LIBRARY_TYPE}" "${HEADERS}" "${SOURCES}")
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else()
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# See https://cmake.org/Wiki/CMake_FAQ#How_do_I_make_my_shared_and_static_libraries_have_the_same_root_name.2C_but_different_suffixes.3F
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add_library("${CJSON_LIB}" SHARED "${HEADERS}" "${SOURCES}")
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add_library("${CJSON_LIB}-static" STATIC "${HEADERS}" "${SOURCES}")
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set_target_properties("${CJSON_LIB}-static" PROPERTIES OUTPUT_NAME "${CJSON_LIB}")
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set_target_properties("${CJSON_LIB}-static" PROPERTIES PREFIX "lib")
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endif()
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if (NOT WIN32)
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target_link_libraries("${CJSON_LIB}" m)
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endif()
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configure_file("${CMAKE_CURRENT_SOURCE_DIR}/library_config/libcjson.pc.in"
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"${CMAKE_CURRENT_BINARY_DIR}/libcjson.pc" @ONLY)
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install(FILES cJSON.h DESTINATION "${CMAKE_INSTALL_FULL_INCLUDEDIR}/cjson")
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install (FILES "${CMAKE_CURRENT_BINARY_DIR}/libcjson.pc" DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}/pkgconfig")
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install(TARGETS "${CJSON_LIB}"
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EXPORT "${CJSON_LIB}"
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ARCHIVE DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}"
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LIBRARY DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}"
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RUNTIME DESTINATION "${CMAKE_INSTALL_FULL_BINDIR}"
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INCLUDES DESTINATION "${CMAKE_INSTALL_FULL_INCLUDEDIR}"
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)
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if (BUILD_SHARED_AND_STATIC_LIBS)
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install(TARGETS "${CJSON_LIB}-static"
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EXPORT "${CJSON_LIB}"
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ARCHIVE DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}"
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INCLUDES DESTINATION "${CMAKE_INSTALL_FULL_INCLUDEDIR}"
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)
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endif()
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if(ENABLE_TARGET_EXPORT)
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# export library information for CMake projects
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install(EXPORT "${CJSON_LIB}" DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}/cmake/cJSON")
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endif()
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if(ENABLE_CJSON_VERSION_SO)
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set_target_properties("${CJSON_LIB}"
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PROPERTIES
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SOVERSION "${CJSON_VERSION_SO}"
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VERSION "${PROJECT_VERSION}")
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endif()
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#cJSON_Utils
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option(ENABLE_CJSON_UTILS "Enable building the cJSON_Utils library." OFF)
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if(ENABLE_CJSON_UTILS)
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set(CJSON_UTILS_LIB cjson_utils)
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file(GLOB HEADERS_UTILS cJSON_Utils.h)
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set(SOURCES_UTILS cJSON_Utils.c)
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if (NOT BUILD_SHARED_AND_STATIC_LIBS)
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add_library("${CJSON_UTILS_LIB}" "${CJSON_LIBRARY_TYPE}" "${HEADERS_UTILS}" "${SOURCES_UTILS}")
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target_link_libraries("${CJSON_UTILS_LIB}" "${CJSON_LIB}")
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else()
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add_library("${CJSON_UTILS_LIB}" SHARED "${HEADERS_UTILS}" "${SOURCES_UTILS}")
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target_link_libraries("${CJSON_UTILS_LIB}" "${CJSON_LIB}")
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add_library("${CJSON_UTILS_LIB}-static" STATIC "${HEADERS_UTILS}" "${SOURCES_UTILS}")
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target_link_libraries("${CJSON_UTILS_LIB}-static" "${CJSON_LIB}-static")
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set_target_properties("${CJSON_UTILS_LIB}-static" PROPERTIES OUTPUT_NAME "${CJSON_UTILS_LIB}")
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set_target_properties("${CJSON_UTILS_LIB}-static" PROPERTIES PREFIX "lib")
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endif()
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configure_file("${CMAKE_CURRENT_SOURCE_DIR}/library_config/libcjson_utils.pc.in"
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"${CMAKE_CURRENT_BINARY_DIR}/libcjson_utils.pc" @ONLY)
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install(TARGETS "${CJSON_UTILS_LIB}"
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EXPORT "${CJSON_UTILS_LIB}"
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ARCHIVE DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}"
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LIBRARY DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}"
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RUNTIME DESTINATION "${CMAKE_INSTALL_FULL_BINDIR}"
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INCLUDES DESTINATION "${CMAKE_INSTALL_FULL_INCLUDEDIR}"
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)
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if (BUILD_SHARED_AND_STATIC_LIBS)
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install(TARGETS "${CJSON_UTILS_LIB}-static"
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EXPORT "${CJSON_UTILS_LIB}"
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ARCHIVE DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}"
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INCLUDES DESTINATION "${CMAKE_INSTALL_FULL_INCLUDEDIR}"
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)
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endif()
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install(FILES cJSON_Utils.h DESTINATION "${CMAKE_INSTALL_FULL_INCLUDEDIR}/cjson")
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install (FILES "${CMAKE_CURRENT_BINARY_DIR}/libcjson_utils.pc" DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}/pkgconfig")
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if(ENABLE_TARGET_EXPORT)
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# export library information for CMake projects
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install(EXPORT "${CJSON_UTILS_LIB}" DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}/cmake/cJSON")
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endif()
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if(ENABLE_CJSON_VERSION_SO)
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set_target_properties("${CJSON_UTILS_LIB}"
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PROPERTIES
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SOVERSION "${CJSON_UTILS_VERSION_SO}"
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VERSION "${PROJECT_VERSION}")
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endif()
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endif()
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# create the other package config files
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configure_file(
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"${CMAKE_CURRENT_SOURCE_DIR}/library_config/cJSONConfig.cmake.in"
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${PROJECT_BINARY_DIR}/cJSONConfig.cmake @ONLY)
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configure_file(
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"${CMAKE_CURRENT_SOURCE_DIR}/library_config/cJSONConfigVersion.cmake.in"
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${PROJECT_BINARY_DIR}/cJSONConfigVersion.cmake @ONLY)
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if(ENABLE_TARGET_EXPORT)
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# Install package config files
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install(FILES ${PROJECT_BINARY_DIR}/cJSONConfig.cmake
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${PROJECT_BINARY_DIR}/cJSONConfigVersion.cmake
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DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}/cmake/cJSON")
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endif()
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option(ENABLE_CJSON_TEST "Enable building cJSON test" ON)
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if(ENABLE_CJSON_TEST)
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enable_testing()
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set(TEST_CJSON cJSON_test)
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add_executable("${TEST_CJSON}" test.c)
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target_link_libraries("${TEST_CJSON}" "${CJSON_LIB}")
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add_test(NAME ${TEST_CJSON} COMMAND "${CMAKE_CURRENT_BINARY_DIR}/${TEST_CJSON}")
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# Disable -fsanitize=float-divide-by-zero for cJSON_test
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if (FLAG_SUPPORTED_fsanitizefloatdividebyzero)
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if ("${CMAKE_VERSION}" VERSION_LESS "2.8.12")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-sanitize=float-divide-by-zero")
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else()
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target_compile_options(${TEST_CJSON} PRIVATE "-fno-sanitize=float-divide-by-zero")
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endif()
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endif()
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#"check" target that automatically builds everything and runs the tests
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add_custom_target(check
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COMMAND ${CMAKE_CTEST_COMMAND} --output-on-failure
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DEPENDS ${TEST_CJSON})
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endif()
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#Create the uninstall target
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option(ENABLE_CJSON_UNINSTALL "Enable creating uninstall target" ON)
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if(ENABLE_CJSON_UNINSTALL)
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add_custom_target(uninstall "${CMAKE_COMMAND}" -P
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"${PROJECT_SOURCE_DIR}/library_config/uninstall.cmake")
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endif()
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# Enable the use of locales
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option(ENABLE_LOCALES "Enable the use of locales" ON)
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if(ENABLE_LOCALES)
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add_definitions(-DENABLE_LOCALES)
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endif()
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add_subdirectory(tests)
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add_subdirectory(fuzzing)
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