1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358
|
# Many projects still are stuck using CMake 2.8 is several places so it's good to provide backward support too. This is
# specially true in old embedded systems (OpenWRT and friends) where CMake isn't necessarily upgraded.
cmake_minimum_required(VERSION 2.8)
if(POLICY CMP0048)
cmake_policy(SET CMP0048 NEW)
endif()
# JSON-C library is C only project.
project(json-c LANGUAGES C VERSION 0.13.99)
# If we've got 3.0 then it's good, let's provide support. Otherwise, leave it be.
if(POLICY CMP0038)
# Policy CMP0038 introduced was in CMake 3.0
cmake_policy(SET CMP0038 NEW)
endif()
if(POLICY CMP0054)
cmake_policy(SET CMP0054 NEW)
endif()
# Include file check macros honor CMAKE_REQUIRED_LIBRARIES
# i.e. the check_include_file() calls will include -lm when checking.
if(POLICY CMP0075)
cmake_policy(SET CMP0075 NEW)
endif()
include(CTest)
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()
# 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 "json-c@googlegroups.com")
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)
# Enable or disable features. By default, all features are turned off.
option(ENABLE_RDRAND "Enable RDRAND Hardware RNG Hash Seed" OFF)
option(ENABLE_THREADING "Enable partial threading support." OFF)
option(DISABLE_WERROR "Avoid treating compiler warnings as fatal errors" OFF)
option(DISABLE_BSYMBOLIC "Avoid linking with -Bsymbolic-function" OFF)
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()
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("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/stat.h HAVE_SYS_STAT_H)
check_include_file(xlocale.h HAVE_XLOCALE_H)
if (HAVE_INTTYPES_H AND NOT MSVC)
set(JSON_C_HAVE_INTTYPES_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)
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()
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 (MSVC)
check_symbol_exists(strtoll "stdlib.h" HAVE_STRTOLL)
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")
# could do the same for strtoull, if needed
endif()
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)
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)
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()
# 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 "Written ${PROJECT_BINARY_DIR}/config.h")
configure_file(${PROJECT_SOURCE_DIR}/cmake/json_config.h.in ${PROJECT_BINARY_DIR}/json_config.h)
message(STATUS "Written ${PROJECT_BINARY_DIR}/json_config.h")
if ("${CMAKE_C_COMPILER_ID}" STREQUAL "GNU")
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 "${CMAKE_C_FLAGS} -Wno-unused-parameter")
add_definitions(-D_GNU_SOURCE)
elseif ("${CMAKE_C_COMPILER_ID}" 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 ("${CMAKE_C_COMPILER_ID}" STREQUAL "MSVC"))
check_c_source_compiles(
[=[
/* uClibc toolchains without threading barf when _REENTRANT is defined */
#define _REENTRANT 1
#include <sys/types.h>
int main ()
{
return 0;
}
]=]
REENTRANT_WORKS
)
if (REENTRANT_WORKS)
add_compile_options("-D_REENTRANT")
endif()
if (DISABLE_BSYMBOLIC STREQUAL "OFF")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKED_FLAGS} -Wl,-Bsymbolic-functions")
# XXX need cmake>=3.13 for this:
#add_link_options("-Wl,-Bsymbolic-functions")
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
${PROJECT_BINARY_DIR}/config.h
${PROJECT_BINARY_DIR}/json_config.h
${PROJECT_SOURCE_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_pointer.h
${PROJECT_SOURCE_DIR}/json_tokener.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}/random_seed.h
${PROJECT_SOURCE_DIR}/strerror_override.h
${PROJECT_SOURCE_DIR}/strerror_override_private.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_pointer.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
${PROJECT_SOURCE_DIR}/strerror_override.c
)
include_directories(${PROJECT_SOURCE_DIR})
include_directories(${PROJECT_BINARY_DIR})
# XXX for a normal full distribution we'll need to figure out
# XXX how to build both shared and static libraries.
# Probably leverage that to build a local VALGRIND=1 library for testing too.
add_library(${PROJECT_NAME}
${JSON_C_SOURCES}
${JSON_C_HEADERS}
)
set_target_properties(${PROJECT_NAME} PROPERTIES
VERSION 4.0.0
SOVERSION 4)
# 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}>
)
install(TARGETS ${PROJECT_NAME}
EXPORT ${PROJECT_NAME}-targets
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
)
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 ${PROJECT_VERSION})
configure_file(json-c.pc.in json-c.pc @ONLY)
set(INSTALL_PKGCONFIG_DIR "${CMAKE_INSTALL_PREFIX}/lib/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_PREFIX}/include/json-c)
|