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CMakeLists.txt
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CMakeLists.txt
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# CMake 3.9 was released in 2017/07
# As of 2023, many versions of Linux, NetBSD and FreeBSD provide,
# and many OpenWRT packages require, much newer CMake packages.
# We're stopping before 3.10 because that version starts requiring
# c++11, which isn't available on e.g HPUX.
cmake_minimum_required(VERSION 3.9...3.12)
# JSON-C library is C only project.
# PROJECT_VERSION{,_MAJOR,_MINOR,_PATCH} set by project():
project(json-c LANGUAGES C VERSION 0.17.99)
# set default build type if not specified by user
if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE debug)
endif()
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O2")
include(CTest)
# Set some packaging variables.
set(CPACK_PACKAGE_NAME "${PROJECT_NAME}")
set(CPACK_PACKAGE_VERSION_MAJOR "${PROJECT_VERSION_MAJOR}")
set(CPACK_PACKAGE_VERSION_MINOR "${PROJECT_VERSION_MINOR}")
set(CPACK_PACKAGE_VERSION_PATCH "${PROJECT_VERSION_PATCH}")
set(JSON_C_BUGREPORT "[email protected]")
set(CPACK_SOURCE_IGNORE_FILES
${PROJECT_SOURCE_DIR}/build
${PROJECT_SOURCE_DIR}/cmake-build-debug
${PROJECT_SOURCE_DIR}/pack
${PROJECT_SOURCE_DIR}/.idea
${PROJECT_SOURCE_DIR}/.DS_Store
${PROJECT_SOURCE_DIR}/.git
${PROJECT_SOURCE_DIR}/.vscode)
include(CheckSymbolExists)
include(CheckIncludeFile)
include(CheckIncludeFiles)
include(CheckCSourceCompiles)
include(CheckTypeSize)
include(CPack)
include(GNUInstallDirs)
include(CMakePackageConfigHelpers)
option(BUILD_SHARED_LIBS "Default to building shared libraries" ON)
option(BUILD_STATIC_LIBS "Default to building static libraries" ON)
if (BUILD_SHARED_LIBS)
add_definitions(-D JSON_C_DLL)
endif()
# Generate a release merge and test it to verify the correctness of republishing the package.
ADD_CUSTOM_TARGET(distcheck
COMMAND make package_source
COMMAND tar -xvf "${PROJECT_NAME}-${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}-Source.tar.gz"
COMMAND mkdir "${PROJECT_NAME}-${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}-Source/build"
COMMAND cmake "${PROJECT_NAME}-${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}-Source/" -B"./${PROJECT_NAME}-${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}-Source/build/"
COMMAND make -C "${PROJECT_NAME}-${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}-Source/build"
COMMAND make test -C "${PROJECT_NAME}-${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}-Source/build"
COMMAND rm -rf "${PROJECT_NAME}-${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}-Source"
)
# Enable or disable features. By default, all features are turned off.
option(DISABLE_BSYMBOLIC "Avoid linking with -Bsymbolic-function." OFF)
option(DISABLE_THREAD_LOCAL_STORAGE "Disable using Thread-Local Storage (HAVE___THREAD)." OFF)
option(DISABLE_WERROR "Avoid treating compiler warnings as fatal errors." OFF)
option(ENABLE_RDRAND "Enable RDRAND Hardware RNG Hash Seed." OFF)
option(ENABLE_THREADING "Enable partial threading support." OFF)
option(OVERRIDE_GET_RANDOM_SEED "Override json_c_get_random_seed() with custom code." OFF)
option(DISABLE_EXTRA_LIBS "Avoid linking against extra libraries, such as libbsd." OFF)
option(DISABLE_JSON_POINTER "Disable JSON pointer (RFC6901) and JSON patch support." OFF)
option(DISABLE_JSON_PATCH "Disable JSON patch (RFC6902) support." OFF)
option(NEWLOCALE_NEEDS_FREELOCALE "Work around newlocale bugs in old FreeBSD by calling freelocale" OFF)
option(BUILD_APPS "Default to building apps" ON)
if (UNIX OR MINGW OR CYGWIN)
list(APPEND CMAKE_REQUIRED_DEFINITIONS -D_GNU_SOURCE)
endif()
if (UNIX)
list(APPEND CMAKE_REQUIRED_LIBRARIES m)
endif()
if (MSVC)
list(APPEND CMAKE_REQUIRED_DEFINITIONS /D_CRT_SECURE_NO_DEPRECATE)
list(APPEND CMAKE_REQUIRED_FLAGS /wd4996)
endif()
if (NOT DISABLE_STATIC_FPIC)
# Use '-fPIC'/'-fPIE' option.
# This will allow other libraries to statically link in libjson-c.a
# which in turn prevents crashes in downstream apps that may use
# a different JSON library with identical symbol names.
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
endif()
check_include_file("fcntl.h" HAVE_FCNTL_H)
check_include_file("inttypes.h" HAVE_INTTYPES_H)
check_include_file(stdarg.h HAVE_STDARG_H)
check_include_file(strings.h HAVE_STRINGS_H)
check_include_file(string.h HAVE_STRING_H)
check_include_file(syslog.h HAVE_SYSLOG_H)
check_include_files("stdlib.h;stdarg.h;string.h;float.h" STDC_HEADERS)
check_include_file(unistd.h HAVE_UNISTD_H)
check_include_file(sys/types.h HAVE_SYS_TYPES_H)
check_include_file(sys/resource.h HAVE_SYS_RESOURCE_H) # for getrusage
check_include_file("dlfcn.h" HAVE_DLFCN_H)
check_include_file("endian.h" HAVE_ENDIAN_H)
check_include_file("limits.h" HAVE_LIMITS_H)
check_include_file("locale.h" HAVE_LOCALE_H)
check_include_file("memory.h" HAVE_MEMORY_H)
check_include_file(stdint.h HAVE_STDINT_H)
check_include_file(stdlib.h HAVE_STDLIB_H)
check_include_file(sys/cdefs.h HAVE_SYS_CDEFS_H)
check_include_file(sys/param.h HAVE_SYS_PARAM_H)
check_include_file(sys/random.h HAVE_SYS_RANDOM_H)
check_include_file(sys/stat.h HAVE_SYS_STAT_H)
check_include_file(xlocale.h HAVE_XLOCALE_H)
# Set json-c specific vars to stamp into json_config.h
# in a way that hopefully won't conflict with other
# projects that use json-c.
if (HAVE_INTTYPES_H)
set(JSON_C_HAVE_INTTYPES_H 1)
endif()
if (HAVE_STDINT_H)
set(JSON_C_HAVE_STDINT_H 1)
endif()
check_symbol_exists(_isnan "float.h" HAVE_DECL__ISNAN)
check_symbol_exists(_finite "float.h" HAVE_DECL__FINITE)
if ((MSVC AND NOT (MSVC_VERSION LESS 1800)) OR MINGW OR CYGWIN OR UNIX)
check_symbol_exists(INFINITY "math.h" HAVE_DECL_INFINITY)
check_symbol_exists(isinf "math.h" HAVE_DECL_ISINF)
check_symbol_exists(isnan "math.h" HAVE_DECL_ISNAN)
check_symbol_exists(nan "math.h" HAVE_DECL_NAN)
endif()
check_symbol_exists(_doprnt "stdio.h" HAVE_DOPRNT)
if (UNIX OR MINGW OR CYGWIN)
check_symbol_exists(snprintf "stdio.h" HAVE_SNPRINTF)
endif()
check_symbol_exists(vasprintf "stdio.h" HAVE_VASPRINTF)
check_symbol_exists(vsnprintf "stdio.h" HAVE_VSNPRINTF)
check_symbol_exists(vprintf "stdio.h" HAVE_VPRINTF)
check_symbol_exists(arc4random "stdlib.h" HAVE_ARC4RANDOM)
if (NOT HAVE_ARC4RANDOM AND DISABLE_EXTRA_LIBS STREQUAL "OFF")
check_include_file(bsd/stdlib.h HAVE_BSD_STDLIB_H)
if (HAVE_BSD_STDLIB_H)
list(APPEND CMAKE_REQUIRED_LIBRARIES "bsd")
unset(HAVE_ARC4RANDOM CACHE)
check_symbol_exists(arc4random "bsd/stdlib.h" HAVE_ARC4RANDOM)
if (NOT HAVE_ARC4RANDOM)
list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES "bsd")
endif()
endif()
endif()
if (HAVE_FCNTL_H)
check_symbol_exists(open "fcntl.h" HAVE_OPEN)
endif()
if (HAVE_STDLIB_H)
check_symbol_exists(realloc "stdlib.h" HAVE_REALLOC)
endif()
if (HAVE_LOCALE_H)
check_symbol_exists(setlocale "locale.h" HAVE_SETLOCALE)
check_symbol_exists(uselocale "locale.h" HAVE_USELOCALE)
endif()
# uClibc *intentionally* crashes in duplocale(), at least as of:
# https://github.com/ffainelli/uClibc/blob/266bdc1/libc/misc/locale/locale.c#L1322
# So, if it looks like we're compiling for a system like that just disable
# locale handling entirely.
execute_process (COMMAND ${CMAKE_C_COMPILER} -dumpmachine ERROR_QUIET OUTPUT_VARIABLE CMAKE_GNU_C_MACHINE)
if (CMAKE_GNU_C_MACHINE MATCHES "uclibc")
message(STATUS "Detected uClibc compiler, disabling locale handling")
set(HAVE_SETLOCALE 0)
set(HAVE_USELOCALE 0)
endif()
if (HAVE_STRINGS_H)
check_symbol_exists(strcasecmp "strings.h" HAVE_STRCASECMP)
check_symbol_exists(strncasecmp "strings.h" HAVE_STRNCASECMP)
endif()
if (HAVE_STRING_H)
check_symbol_exists(strdup "string.h" HAVE_STRDUP)
check_symbol_exists(strerror "string.h" HAVE_STRERROR)
endif()
if (HAVE_SYSLOG_H)
check_symbol_exists(vsyslog "syslog.h" HAVE_VSYSLOG)
endif()
if (HAVE_SYS_RANDOM_H)
check_symbol_exists(getrandom "sys/random.h" HAVE_GETRANDOM)
endif()
if (HAVE_SYS_RESOURCE_H)
check_symbol_exists(getrusage "sys/resource.h" HAVE_GETRUSAGE)
endif()
check_symbol_exists(strtoll "stdlib.h" HAVE_STRTOLL)
check_symbol_exists(strtoull "stdlib.h" HAVE_STRTOULL)
set(json_c_strtoll "strtoll")
if (NOT HAVE_STRTOLL)
# Use _strtoi64 if strtoll is not available.
check_symbol_exists(_strtoi64 "stdlib.h" __have_strtoi64)
if (__have_strtoi64)
#set(HAVE_STRTOLL 1)
set(json_c_strtoll "_strtoi64")
endif()
endif()
set(json_c_strtoull "strtoull")
if (NOT HAVE_STRTOULL)
# Use _strtoui64 if strtoull is not available.
check_symbol_exists(_strtoui64 "stdlib.h" __have_strtoui64)
if (__have_strtoui64)
#set(HAVE_STRTOULL 1)
set(json_c_strtoull "_strtoui64")
endif()
endif()
check_type_size(int SIZEOF_INT)
check_type_size(int64_t SIZEOF_INT64_T)
check_type_size(long SIZEOF_LONG)
check_type_size("long long" SIZEOF_LONG_LONG)
check_type_size("size_t" SIZEOF_SIZE_T)
if (MSVC)
list(APPEND CMAKE_EXTRA_INCLUDE_FILES BaseTsd.h)
check_type_size("SSIZE_T" SIZEOF_SSIZE_T)
else()
check_type_size("ssize_t" SIZEOF_SSIZE_T)
endif()
check_c_source_compiles(
"
extern void json_object_get();
__asm__(\".section .gnu.json_object_get\\n\\t.ascii \\\"Please link against libjson-c instead of libjson\\\"\\n\\t.text\");
int main(int c, char *v) { return 0;}
"
HAS_GNU_WARNING_LONG)
check_c_source_compiles(
"int main() { int i, x = 0; i = __sync_add_and_fetch(&x,1); return x; }"
HAVE_ATOMIC_BUILTINS)
if (NOT DISABLE_THREAD_LOCAL_STORAGE)
check_c_source_compiles(
"__thread int x = 0; int main() { return 0; }"
HAVE___THREAD)
if (HAVE___THREAD)
set(SPEC___THREAD __thread)
elseif (MSVC)
set(SPEC___THREAD __declspec(thread))
endif()
endif()
# Hardware random number is not available on Windows? Says, config.h.win32. Best to preserve compatibility.
if (WIN32)
set(ENABLE_RDRAND 0)
endif()
# Once we've done basic symbol/header searches let's add them in.
configure_file(${PROJECT_SOURCE_DIR}/cmake/config.h.in ${PROJECT_BINARY_DIR}/config.h)
message(STATUS "Wrote ${PROJECT_BINARY_DIR}/config.h")
configure_file(${PROJECT_SOURCE_DIR}/cmake/json_config.h.in ${PROJECT_BINARY_DIR}/json_config.h)
message(STATUS "Wrote ${PROJECT_BINARY_DIR}/json_config.h")
if (NOT DEFINED CMAKE_C_COMPILER_FRONTEND_VARIANT OR "${CMAKE_C_COMPILER_FRONTEND_VARIANT}" STREQUAL "") # only available in cmake 3.14+
if ("${CMAKE_C_COMPILER_ID}" STREQUAL "MSVC")
set(CMAKE_C_COMPILER_FRONTEND_VARIANT "MSVC")
elseif ("${CMAKE_C_COMPILER_ID}" STREQUAL "GNU")
set(CMAKE_C_COMPILER_FRONTEND_VARIANT "GNU")
elseif ("${CMAKE_C_COMPILER_ID}" STREQUAL "Clang")
# Detect clang-cl.exe, it is Clang but with MSVC compatible command line arguments
execute_process (COMMAND ${CMAKE_C_COMPILER} -? ERROR_QUIET OUTPUT_QUIET RESULT_VARIABLE _clang_result)
if (_clang_result EQUAL 0)
set(CMAKE_C_COMPILER_FRONTEND_VARIANT "MSVC")
else()
set(CMAKE_C_COMPILER_FRONTEND_VARIANT "GNU")
message(STATUS, "clang result is NOT 0")
endif()
endif()
endif()
if ("${CMAKE_C_COMPILER_FRONTEND_VARIANT}" STREQUAL "GNU" OR "${CMAKE_C_COMPILER_FRONTEND_VARIANT}" STREQUAL "Clang")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ffunction-sections -fdata-sections")
if ("${DISABLE_WERROR}" STREQUAL "OFF")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
endif()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wcast-qual")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-error=deprecated-declarations")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wextra")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wwrite-strings")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-unused-parameter")
if (NOT WIN32)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wstrict-prototypes")
endif()
add_definitions(-D_GNU_SOURCE)
if ("${CMAKE_C_COMPILER_FRONTEND_VARIANT}" STREQUAL "Clang")
# Remove this for 1.0 when we can bump the ABI and actually fix these warnings.
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-shorten-64-to-32")
endif()
elseif ("${CMAKE_C_COMPILER_FRONTEND_VARIANT}" STREQUAL "MSVC")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /DEBUG")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /wd4100")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /wd4996")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /wd4244")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /wd4706")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /wd4702")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /wd4127")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /wd4701")
endif()
if (NOT ("${CMAKE_C_COMPILER_FRONTEND_VARIANT}" STREQUAL "MSVC"))
check_c_source_compiles(
"
/* uClibc toolchains without threading barf when _REENTRANT is defined */
#define _REENTRANT 1
#include <sys/types.h>
int main (void)
{
return 0;
}
"
REENTRANT_WORKS
)
if (REENTRANT_WORKS)
add_compile_options("-D_REENTRANT")
endif()
# OSX Mach-O doesn't support linking with '-Bsymbolic-functions'.
# Others may not support it, too.
list(APPEND CMAKE_REQUIRED_LIBRARIES "-Wl,-Bsymbolic-functions")
check_c_source_compiles(
"
int main (void)
{
return 0;
}
"
BSYMBOLIC_WORKS
)
list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES "-Wl,-Bsymbolic-functions")
if (DISABLE_BSYMBOLIC STREQUAL "OFF" AND BSYMBOLIC_WORKS)
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,-Bsymbolic-functions")
# XXX need cmake>=3.13 for this:
#add_link_options("-Wl,-Bsymbolic-functions")
endif()
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/check-version-script.sym" "TEST { global: *; };")
list(APPEND CMAKE_REQUIRED_LIBRARIES "-Wl,--version-script,${CMAKE_CURRENT_BINARY_DIR}/check-version-script.sym")
check_c_source_compiles(
"
int main (void)
{
return 0;
}
"
VERSION_SCRIPT_WORKS
)
list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES "-Wl,--version-script,${CMAKE_CURRENT_BINARY_DIR}/check-version-script.sym")
if (VERSION_SCRIPT_WORKS)
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--version-script,${CMAKE_CURRENT_SOURCE_DIR}/json-c.sym")
endif()
endif()
if ($ENV{VALGRIND})
# Build so that valgrind doesn't complain about linkhash.c
add_definitions(-DVALGRIND=1)
endif()
set(JSON_C_PUBLIC_HEADERS
# Note: config.h is _not_ included here
${PROJECT_BINARY_DIR}/json_config.h
${PROJECT_BINARY_DIR}/json.h
${PROJECT_SOURCE_DIR}/arraylist.h
${PROJECT_SOURCE_DIR}/debug.h
${PROJECT_SOURCE_DIR}/json_c_version.h
${PROJECT_SOURCE_DIR}/json_inttypes.h
${PROJECT_SOURCE_DIR}/json_object.h
${PROJECT_SOURCE_DIR}/json_object_iterator.h
${PROJECT_SOURCE_DIR}/json_tokener.h
${PROJECT_SOURCE_DIR}/json_types.h
${PROJECT_SOURCE_DIR}/json_util.h
${PROJECT_SOURCE_DIR}/json_visit.h
${PROJECT_SOURCE_DIR}/linkhash.h
${PROJECT_SOURCE_DIR}/printbuf.h
)
set(JSON_C_HEADERS
${JSON_C_PUBLIC_HEADERS}
${PROJECT_SOURCE_DIR}/json_object_private.h
${PROJECT_SOURCE_DIR}/json_pointer_private.h
${PROJECT_SOURCE_DIR}/random_seed.h
${PROJECT_SOURCE_DIR}/strerror_override.h
${PROJECT_SOURCE_DIR}/math_compat.h
${PROJECT_SOURCE_DIR}/snprintf_compat.h
${PROJECT_SOURCE_DIR}/strdup_compat.h
${PROJECT_SOURCE_DIR}/vasprintf_compat.h
)
set(JSON_C_SOURCES
${PROJECT_SOURCE_DIR}/arraylist.c
${PROJECT_SOURCE_DIR}/debug.c
${PROJECT_SOURCE_DIR}/json_c_version.c
${PROJECT_SOURCE_DIR}/json_object.c
${PROJECT_SOURCE_DIR}/json_object_iterator.c
${PROJECT_SOURCE_DIR}/json_tokener.c
${PROJECT_SOURCE_DIR}/json_util.c
${PROJECT_SOURCE_DIR}/json_visit.c
${PROJECT_SOURCE_DIR}/linkhash.c
${PROJECT_SOURCE_DIR}/printbuf.c
${PROJECT_SOURCE_DIR}/random_seed.c
${PROJECT_SOURCE_DIR}/strerror_override.c
)
if (NOT DISABLE_JSON_POINTER)
set(JSON_C_PUBLIC_HEADERS ${JSON_C_PUBLIC_HEADERS} ${PROJECT_SOURCE_DIR}/json_pointer.h)
set(JSON_C_SOURCES ${JSON_C_SOURCES} ${PROJECT_SOURCE_DIR}/json_pointer.c)
set(JSON_H_JSON_POINTER "#include \"json_pointer.h\"")
if (NOT DISABLE_JSON_PATCH)
set(JSON_C_PUBLIC_HEADERS ${JSON_C_PUBLIC_HEADERS} ${PROJECT_SOURCE_DIR}/json_patch.h)
set(JSON_C_SOURCES ${JSON_C_SOURCES} ${PROJECT_SOURCE_DIR}/json_patch.c)
set(JSON_H_JSON_PATCH "#include \"json_patch.h\"")
endif()
else()
set(JSON_H_JSON_POINTER "")
set(JSON_H_JSON_PATCH "")
endif()
configure_file(json.h.cmakein ${PROJECT_BINARY_DIR}/json.h @ONLY)
include_directories(${PROJECT_SOURCE_DIR})
include_directories(${PROJECT_BINARY_DIR})
add_subdirectory(doc)
# "uninstall" custom target for make generators in unix like operating systems
# and if that target is not present
if (CMAKE_GENERATOR STREQUAL "Unix Makefiles")
if(NOT TARGET uninstall)
add_custom_target(uninstall
COMMAND cat ${PROJECT_BINARY_DIR}/install_manifest.txt | xargs rm
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
)
endif()
endif()
# XXX for a normal full distribution we'll need to figure out
# XXX how to build both shared and static libraries.
# Probably leverage that to build a local VALGRIND=1 library for testing too.
add_library(${PROJECT_NAME}
${JSON_C_SOURCES}
${JSON_C_HEADERS}
)
set_target_properties(${PROJECT_NAME} PROPERTIES
VERSION 5.3.0
SOVERSION 5)
list(APPEND CMAKE_TARGETS ${PROJECT_NAME})
# If json-c is used as subroject it set to target correct interface -I flags and allow
# to build external target without extra include_directories(...)
target_include_directories(${PROJECT_NAME}
PUBLIC
$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}>
$<BUILD_INTERFACE:${PROJECT_BINARY_DIR}>
)
target_link_libraries(${PROJECT_NAME} PUBLIC ${CMAKE_REQUIRED_LIBRARIES})
# Allow to build static and shared libraries at the same time
if (BUILD_STATIC_LIBS AND BUILD_SHARED_LIBS)
set(STATIC_LIB ${PROJECT_NAME}-static)
add_library(${STATIC_LIB} STATIC
${JSON_C_SOURCES}
${JSON_C_HEADERS}
)
target_include_directories(${PROJECT_NAME}-static
PUBLIC
$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}>
$<BUILD_INTERFACE:${PROJECT_BINARY_DIR}>
)
target_link_libraries(${PROJECT_NAME}-static PUBLIC ${CMAKE_REQUIRED_LIBRARIES})
# rename the static library
if (NOT MSVC)
set_target_properties(${STATIC_LIB} PROPERTIES
OUTPUT_NAME ${PROJECT_NAME}
)
endif()
list(APPEND CMAKE_TARGETS ${STATIC_LIB})
endif ()
# Always create new install dirs with 0755 permissions, regardless of umask
set(CMAKE_INSTALL_DEFAULT_DIRECTORY_PERMISSIONS
OWNER_READ
OWNER_WRITE
OWNER_EXECUTE
GROUP_READ
GROUP_EXECUTE
WORLD_READ
WORLD_EXECUTE
)
install(TARGETS ${CMAKE_TARGETS}
EXPORT ${PROJECT_NAME}-targets
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} ${CMAKE_INSTALL_INCLUDEDIR}/json-c
)
install(EXPORT ${PROJECT_NAME}-targets
FILE ${PROJECT_NAME}-targets.cmake
NAMESPACE ${PROJECT_NAME}::
DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}
)
configure_package_config_file(
"cmake/Config.cmake.in"
${PROJECT_BINARY_DIR}/${PROJECT_NAME}-config.cmake
INSTALL_DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}"
)
install(
FILES ${PROJECT_BINARY_DIR}/${PROJECT_NAME}-config.cmake
DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}
)
if (UNIX OR MINGW OR CYGWIN)
SET(prefix ${CMAKE_INSTALL_PREFIX})
# exec_prefix is prefix by default and CMake does not have the
# concept.
SET(exec_prefix ${CMAKE_INSTALL_PREFIX})
SET(libdir ${CMAKE_INSTALL_FULL_LIBDIR})
SET(includedir ${CMAKE_INSTALL_FULL_INCLUDEDIR})
SET(VERSION ${PROJECT_VERSION})
# Linking against the static json-c requires
# dependent packages to include additional libs:
SET(LIBS_LIST ${CMAKE_REQUIRED_LIBRARIES})
# Note: We would need cmake >= 3.12 in order to use list(TRANSFORM ...)
function(list_transform_prepend var prefix)
set(temp "")
foreach(f ${${var}})
list(APPEND temp "${prefix}${f}")
endforeach()
set(${var} "${temp}" PARENT_SCOPE)
endfunction()
list_transform_prepend(LIBS_LIST "-l")
string(REPLACE ";" " " LIBS "${LIBS_LIST}")
configure_file(json-c.pc.in json-c.pc @ONLY)
set(INSTALL_PKGCONFIG_DIR "${CMAKE_INSTALL_LIBDIR}/pkgconfig" CACHE PATH "Installation directory for pkgconfig (.pc) files")
install(FILES ${PROJECT_BINARY_DIR}/json-c.pc DESTINATION "${INSTALL_PKGCONFIG_DIR}")
endif ()
install(FILES ${JSON_C_PUBLIC_HEADERS} DESTINATION ${CMAKE_INSTALL_FULL_INCLUDEDIR}/json-c)
if (CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME AND BUILD_TESTING AND
(NOT MSVC OR NOT (MSVC_VERSION LESS 1800)) # Tests need at least VS2013
)
add_subdirectory(tests)
endif()
if (CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME AND BUILD_APPS)
# skip apps when we're included in someone else's build
if (NOT MSVC) # cmd line apps don't built on Windows currently.
add_subdirectory(apps)
endif()
endif()