1 # See www/CMake.html for instructions on how to build libcxxabi with CMake. 2 3 #=============================================================================== 4 # Setup Project 5 #=============================================================================== 6 7 cmake_minimum_required(VERSION 3.4.3) 8 9 if(POLICY CMP0042) 10 cmake_policy(SET CMP0042 NEW) # Set MACOSX_RPATH=YES by default 11 endif() 12 13 # Add path for custom modules 14 set(CMAKE_MODULE_PATH 15 "${CMAKE_CURRENT_SOURCE_DIR}/cmake" 16 "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules" 17 ${CMAKE_MODULE_PATH} 18 ) 19 20 if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR) 21 project(libcxxabi CXX C) 22 23 set(PACKAGE_NAME libcxxabi) 24 set(PACKAGE_VERSION 6.0.0svn) 25 set(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}") 26 set(PACKAGE_BUGREPORT "llvm-bugs (a] lists.llvm.org") 27 28 # Find the LLVM sources and simulate LLVM CMake options. 29 include(HandleOutOfTreeLLVM) 30 endif() 31 32 # Require out of source build. 33 include(MacroEnsureOutOfSourceBuild) 34 MACRO_ENSURE_OUT_OF_SOURCE_BUILD( 35 "${PROJECT_NAME} requires an out of source build. Please create a separate 36 build directory and run 'cmake /path/to/${PROJECT_NAME} [options]' there." 37 ) 38 39 #=============================================================================== 40 # Setup CMake Options 41 #=============================================================================== 42 include(CMakeDependentOption) 43 include(HandleCompilerRT) 44 45 # Define options. 46 option(LIBCXXABI_ENABLE_EXCEPTIONS "Use exceptions." ON) 47 option(LIBCXXABI_ENABLE_ASSERTIONS "Enable assertions independent of build mode." ON) 48 option(LIBCXXABI_ENABLE_PEDANTIC "Compile with pedantic enabled." ON) 49 option(LIBCXXABI_ENABLE_WERROR "Fail and stop if a warning is triggered." OFF) 50 option(LIBCXXABI_USE_LLVM_UNWINDER "Build and use the LLVM unwinder." OFF) 51 option(LIBCXXABI_ENABLE_STATIC_UNWINDER "Statically link the LLVM unwinder." OFF) 52 option(LIBCXXABI_USE_COMPILER_RT "Use compiler-rt instead of libgcc" OFF) 53 option(LIBCXXABI_ENABLE_THREADS "Build with threads enabled" ON) 54 option(LIBCXXABI_HAS_PTHREAD_API "Ignore auto-detection and force use of pthread API" OFF) 55 option(LIBCXXABI_HAS_EXTERNAL_THREAD_API 56 "Build libc++abi with an externalized threading API. 57 This option may only be set to ON when LIBCXXABI_ENABLE_THREADS=ON." OFF) 58 option(LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY 59 "Build libc++abi with an externalized threading library. 60 This option may only be set to ON when LIBCXXABI_ENABLE_THREADS=ON" OFF) 61 62 # FIXME: This option should default to off. Unfortunatly GCC 4.9 fails to link 63 # programs to due undefined references to new/delete in libc++abi. Once this 64 # has been fixed or worked around the default value should be changed. 65 option(LIBCXXABI_ENABLE_NEW_DELETE_DEFINITIONS 66 "Build libc++abi with definitions for operator new/delete. Normally libc++ 67 provides these definitions" ON) 68 option(LIBCXXABI_BUILD_32_BITS "Build 32 bit libc++abi." ${LLVM_BUILD_32_BITS}) 69 option(LIBCXXABI_INCLUDE_TESTS "Generate build targets for the libc++abi unit tests." ${LLVM_INCLUDE_TESTS}) 70 set(LIBCXXABI_LIBDIR_SUFFIX "${LLVM_LIBDIR_SUFFIX}" CACHE STRING 71 "Define suffix of library directory name (32/64)") 72 set(LIBCXXABI_TARGET_TRIPLE "" CACHE STRING "Target triple for cross compiling.") 73 set(LIBCXXABI_GCC_TOOLCHAIN "" CACHE PATH "GCC toolchain for cross compiling.") 74 set(LIBCXXABI_SYSROOT "" CACHE PATH "Sysroot for cross compiling.") 75 set(LIBCXXABI_LIBCXX_LIBRARY_PATH "" CACHE PATH "The path to libc++ library.") 76 77 # Default to building a shared library so that the default options still test 78 # the libc++abi that is being built. There are two problems with testing a 79 # static libc++abi. In the case of a standalone build, the tests will link the 80 # system's libc++, which might not have been built against our libc++abi. In the 81 # case of an in tree build, libc++ will prefer a dynamic libc++abi from the 82 # system over a static libc++abi from the output directory. 83 option(LIBCXXABI_ENABLE_SHARED "Build libc++abi as a shared library." ON) 84 option(LIBCXXABI_ENABLE_STATIC "Build libc++abi as a static library." ON) 85 86 option(LIBCXXABI_BAREMETAL "Build libc++abi for baremetal targets." OFF) 87 # The default terminate handler attempts to demangle uncaught exceptions, which 88 # causes extra I/O and demangling code to be pulled in. 89 option(LIBCXXABI_SILENT_TERMINATE "Set this to make the terminate handler default to a silent alternative" OFF) 90 91 if (NOT LIBCXXABI_ENABLE_SHARED AND NOT LIBCXXABI_ENABLE_STATIC) 92 message(FATAL_ERROR "libc++abi must be built as either a shared or static library.") 93 endif() 94 95 if (LLVM_EXTERNAL_LIBCXX_SOURCE_DIR) 96 set(LIBCXXABI_LIBCXX_SRC_DIRS ${LLVM_EXTERNAL_LIBCXX_SOURCE_DIR}) 97 else() 98 set(LIBCXXABI_LIBCXX_SRC_DIRS 99 "${LLVM_MAIN_SRC_DIR}/projects/libcxx" 100 "${LLVM_MAIN_SRC_DIR}/runtimes/libcxx" 101 ) 102 endif() 103 104 set(LIBCXXABI_LIBCXX_INCLUDE_DIRS "") 105 foreach(dir ${LIBCXXABI_LIBCXX_SRC_DIRS}) 106 list(APPEND LIBCXXABI_LIBCXX_INCLUDE_DIRS "${dir}/include") 107 endforeach() 108 109 find_path( 110 LIBCXXABI_LIBCXX_INCLUDES 111 vector 112 PATHS ${LIBCXXABI_LIBCXX_INCLUDES} 113 ${LIBCXXABI_LIBCXX_PATH}/include 114 ${CMAKE_BINARY_DIR}/${LIBCXXABI_LIBCXX_INCLUDES} 115 ${LIBCXXABI_LIBCXX_INCLUDE_DIRS} 116 ${LLVM_INCLUDE_DIR}/c++/v1 117 ) 118 119 set(LIBCXXABI_LIBCXX_INCLUDES "${LIBCXXABI_LIBCXX_INCLUDES}" CACHE PATH 120 "Specify path to libc++ includes." FORCE) 121 122 find_path( 123 LIBCXXABI_LIBCXX_PATH 124 utils/libcxx/test/__init__.py 125 PATHS ${LIBCXXABI_LIBCXX_PATH} 126 ${LIBCXXABI_LIBCXX_INCLUDES}/../ 127 ${LIBCXXABI_LIBCXX_SRC_DIRS} 128 NO_DEFAULT_PATH 129 ) 130 131 if (LIBCXXABI_LIBCXX_PATH STREQUAL "LIBCXXABI_LIBCXX_PATH-NOTFOUND") 132 message(WARNING "LIBCXXABI_LIBCXX_PATH was not specified and couldn't be infered.") 133 set(LIBCXXABI_LIBCXX_PATH "") 134 endif() 135 136 set(LIBCXXABI_LIBCXX_PATH "${LIBCXXABI_LIBCXX_PATH}" CACHE PATH 137 "Specify path to libc++ source." FORCE) 138 139 #=============================================================================== 140 # Configure System 141 #=============================================================================== 142 143 # Add path for custom modules 144 set(CMAKE_MODULE_PATH 145 "${CMAKE_CURRENT_SOURCE_DIR}/cmake" 146 "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules" 147 ${CMAKE_MODULE_PATH} 148 ) 149 150 set(LIBCXXABI_COMPILER ${CMAKE_CXX_COMPILER}) 151 set(LIBCXXABI_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}) 152 set(LIBCXXABI_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}) 153 if (LLVM_LIBRARY_OUTPUT_INTDIR) 154 set(LIBCXXABI_LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR}) 155 else() 156 set(LIBCXXABI_LIBRARY_DIR ${CMAKE_BINARY_DIR}/lib${LIBCXXABI_LIBDIR_SUFFIX}) 157 endif() 158 159 set(LIBCXXABI_INSTALL_PREFIX "" CACHE STRING 160 "Define libc++abi destination prefix.") 161 162 if (NOT LIBCXXABI_INSTALL_PREFIX MATCHES "^$|.*/") 163 message(FATAL_ERROR "LIBCXXABI_INSTALL_PREFIX has to end with \"/\".") 164 endif() 165 166 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${LIBCXXABI_LIBRARY_DIR}) 167 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${LIBCXXABI_LIBRARY_DIR}) 168 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${LIBCXXABI_LIBRARY_DIR}) 169 170 # By default, for non-standalone builds, libcxx and libcxxabi share a library 171 # directory. 172 if (NOT LIBCXXABI_LIBCXX_LIBRARY_PATH) 173 set(LIBCXXABI_LIBCXX_LIBRARY_PATH "${LIBCXXABI_LIBRARY_DIR}" CACHE PATH 174 "The path to libc++ library.") 175 endif() 176 177 # Check that we can build with 32 bits if requested. 178 if (CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32) 179 if (LIBCXXABI_BUILD_32_BITS AND NOT LLVM_BUILD_32_BITS) # Don't duplicate the output from LLVM 180 message(STATUS "Building 32 bits executables and libraries.") 181 endif() 182 elseif(LIBCXXABI_BUILD_32_BITS) 183 message(FATAL_ERROR "LIBCXXABI_BUILD_32_BITS=ON is not supported on this platform.") 184 endif() 185 186 # Declare libc++abi configuration variables. 187 # They are intended for use as follows: 188 # LIBCXXABI_C_FLAGS: General flags for both the c++ compiler and linker. 189 # LIBCXXABI_CXX_FLAGS: General flags for both the c++ compiler and linker. 190 # LIBCXXABI_COMPILE_FLAGS: Compile only flags. 191 # LIBCXXABI_LINK_FLAGS: Linker only flags. 192 # LIBCXXABI_LIBRARIES: libraries libc++abi is linked to. 193 194 set(LIBCXXABI_C_FLAGS "") 195 set(LIBCXXABI_CXX_FLAGS "") 196 set(LIBCXXABI_COMPILE_FLAGS "") 197 set(LIBCXXABI_LINK_FLAGS "") 198 set(LIBCXXABI_LIBRARIES "") 199 200 # Include macros for adding and removing libc++abi flags. 201 include(HandleLibcxxabiFlags) 202 203 #=============================================================================== 204 # Setup Compiler Flags 205 #=============================================================================== 206 207 # Configure target flags 208 add_target_flags_if(LIBCXXABI_BUILD_32_BITS "-m32") 209 add_target_flags_if(LIBCXXABI_TARGET_TRIPLE 210 "--target=${LIBCXXABI_TARGET_TRIPLE}") 211 add_target_flags_if(LIBCXXABI_GCC_TOOLCHAIN 212 "--gcc-toolchain=${LIBCXXABI_GCC_TOOLCHAIN}") 213 add_target_flags_if(LIBCXXABI_SYSROOT 214 "--sysroot=${LIBCXXABI_SYSROOT}") 215 216 if (LIBCXXABI_TARGET_TRIPLE) 217 set(TARGET_TRIPLE "${LIBCXXABI_TARGET_TRIPLE}") 218 endif() 219 220 # Configure compiler. Must happen after setting the target flags. 221 include(config-ix) 222 223 if (LIBCXXABI_HAS_NOSTDINCXX_FLAG) 224 list(APPEND LIBCXXABI_COMPILE_FLAGS -nostdinc++) 225 # Remove -stdlib flags to prevent them from causing an unused flag warning. 226 string(REPLACE "-stdlib=libc++" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") 227 string(REPLACE "-stdlib=libstdc++" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") 228 endif() 229 230 if (LIBCXXABI_USE_COMPILER_RT) 231 list(APPEND LIBCXXABI_LINK_FLAGS "-rtlib=compiler-rt") 232 endif() 233 234 # Let the library headers know they are currently being used to build the 235 # library. 236 add_definitions(-D_LIBCXXABI_BUILDING_LIBRARY) 237 238 # Disable DLL annotations on Windows for static builds. 239 if (WIN32 AND LIBCXXABI_ENABLE_STATIC AND NOT LIBCXXABI_ENABLE_SHARED) 240 add_definitions(-D_LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS) 241 endif() 242 243 add_compile_flags_if_supported(-Werror=return-type) 244 245 # Get warning flags 246 add_compile_flags_if_supported(-W) 247 add_compile_flags_if_supported(-Wall) 248 add_compile_flags_if_supported(-Wchar-subscripts) 249 add_compile_flags_if_supported(-Wconversion) 250 add_compile_flags_if_supported(-Wmismatched-tags) 251 add_compile_flags_if_supported(-Wmissing-braces) 252 add_compile_flags_if_supported(-Wnewline-eof) 253 add_compile_flags_if_supported(-Wunused-function) 254 add_compile_flags_if_supported(-Wshadow) 255 add_compile_flags_if_supported(-Wshorten-64-to-32) 256 add_compile_flags_if_supported(-Wsign-compare) 257 add_compile_flags_if_supported(-Wsign-conversion) 258 add_compile_flags_if_supported(-Wstrict-aliasing=2) 259 add_compile_flags_if_supported(-Wstrict-overflow=4) 260 add_compile_flags_if_supported(-Wunused-parameter) 261 add_compile_flags_if_supported(-Wunused-variable) 262 add_compile_flags_if_supported(-Wwrite-strings) 263 add_compile_flags_if_supported(-Wundef) 264 265 if (LIBCXXABI_ENABLE_WERROR) 266 add_compile_flags_if_supported(-Werror) 267 add_compile_flags_if_supported(-WX) 268 else() 269 add_compile_flags_if_supported(-Wno-error) 270 add_compile_flags_if_supported(-WX-) 271 endif() 272 if (LIBCXXABI_ENABLE_PEDANTIC) 273 add_compile_flags_if_supported(-pedantic) 274 endif() 275 276 # Get feature flags. 277 add_compile_flags_if_supported(-fstrict-aliasing) 278 279 # Exceptions 280 if (LIBCXXABI_ENABLE_EXCEPTIONS) 281 # Catches C++ exceptions only and tells the compiler to assume that extern C 282 # functions never throw a C++ exception. 283 add_compile_flags_if_supported(-EHsc) 284 # Do we really need to be run through the C compiler ? 285 add_c_compile_flags_if_supported(-funwind-tables) 286 else() 287 add_definitions(-D_LIBCXXABI_NO_EXCEPTIONS) 288 add_compile_flags_if_supported(-fno-exceptions) 289 add_compile_flags_if_supported(-EHs-) 290 add_compile_flags_if_supported(-EHa-) 291 endif() 292 293 # Assert 294 string(TOUPPER "${CMAKE_BUILD_TYPE}" uppercase_CMAKE_BUILD_TYPE) 295 if (LIBCXXABI_ENABLE_ASSERTIONS) 296 # MSVC doesn't like _DEBUG on release builds. See PR 4379. 297 if (NOT MSVC) 298 list(APPEND LIBCXXABI_COMPILE_FLAGS -D_DEBUG) 299 endif() 300 # On Release builds cmake automatically defines NDEBUG, so we 301 # explicitly undefine it: 302 if (uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE") 303 list(APPEND LIBCXXABI_COMPILE_FLAGS -UNDEBUG) 304 endif() 305 else() 306 if (NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE") 307 list(APPEND LIBCXXABI_COMPILE_FLAGS -DNDEBUG) 308 endif() 309 endif() 310 # Static library 311 if (NOT LIBCXXABI_ENABLE_SHARED) 312 list(APPEND LIBCXXABI_COMPILE_FLAGS -D_LIBCPP_BUILD_STATIC) 313 endif() 314 315 # Threading 316 if (NOT LIBCXXABI_ENABLE_THREADS) 317 if (LIBCXXABI_HAS_PTHREAD_API) 318 message(FATAL_ERROR "LIBCXXABI_HAS_PTHREAD_API can only" 319 " be set to ON when LIBCXXABI_ENABLE_THREADS" 320 " is also set to ON.") 321 endif() 322 if (LIBCXXABI_HAS_EXTERNAL_THREAD_API) 323 message(FATAL_ERROR "LIBCXXABI_HAS_EXTERNAL_THREAD_API can only" 324 " be set to ON when LIBCXXABI_ENABLE_THREADS" 325 " is also set to ON.") 326 endif() 327 if (LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY) 328 message(FATAL_ERROR "LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY can only" 329 " be set to ON when LIBCXXABI_ENABLE_THREADS" 330 " is also set to ON.") 331 endif() 332 add_definitions(-D_LIBCXXABI_HAS_NO_THREADS) 333 endif() 334 335 if (LIBCXXABI_HAS_EXTERNAL_THREAD_API) 336 if (LIBCXXABI_HAS_PTHREAD_API) 337 message(FATAL_ERROR "The options LIBCXXABI_HAS_EXTERNAL_THREAD_API" 338 " and LIBCXXABI_HAS_PTHREAD_API cannot be both" 339 " set to ON at the same time.") 340 endif() 341 if (LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY) 342 message(FATAL_ERROR "The options LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY" 343 " and LIBCXXABI_HAS_EXTERNAL_THREAD_API cannot be both" 344 " set to ON at the same time.") 345 endif() 346 endif() 347 348 set(LIBCXXABI_HAS_UNDEFINED_SYMBOLS OFF) 349 if ((NOT LIBCXXABI_ENABLE_NEW_DELETE_DEFINITIONS) 350 OR (LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY AND LIBCXXABI_ENABLE_SHARED) 351 OR MINGW) 352 set(LIBCXXABI_HAS_UNDEFINED_SYMBOLS ON) 353 endif() 354 355 if (LIBCXXABI_HAS_UNDEFINED_SYMBOLS) 356 # Need to allow unresolved symbols if this is to work with shared library builds 357 if (APPLE) 358 list(APPEND LIBCXXABI_LINK_FLAGS "-undefined dynamic_lookup") 359 else() 360 # Relax this restriction from HandleLLVMOptions 361 string(REPLACE "-Wl,-z,defs" "" CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}") 362 endif() 363 endif() 364 365 if (LIBCXXABI_HAS_PTHREAD_API) 366 add_definitions(-D_LIBCPP_HAS_THREAD_API_PTHREAD) 367 endif() 368 369 if (LIBCXXABI_HAS_EXTERNAL_THREAD_API) 370 add_definitions(-D_LIBCPP_HAS_THREAD_API_EXTERNAL) 371 endif() 372 373 if (LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY) 374 add_definitions(-D_LIBCPP_HAS_THREAD_LIBRARY_EXTERNAL) 375 endif() 376 377 # Prevent libc++abi from having library dependencies on libc++ 378 add_definitions(-D_LIBCPP_DISABLE_EXTERN_TEMPLATE) 379 380 if (MSVC) 381 add_definitions(-D_CRT_SECURE_NO_WARNINGS) 382 endif() 383 384 # Define LIBCXXABI_USE_LLVM_UNWINDER for conditional compilation. 385 if (LIBCXXABI_USE_LLVM_UNWINDER) 386 add_definitions(-DLIBCXXABI_USE_LLVM_UNWINDER) 387 endif() 388 389 if (LIBCXXABI_SILENT_TERMINATE) 390 add_definitions(-DLIBCXXABI_SILENT_TERMINATE) 391 endif() 392 393 if (LIBCXXABI_BAREMETAL) 394 add_definitions(-DLIBCXXABI_BAREMETAL) 395 endif() 396 397 string(REPLACE ";" " " LIBCXXABI_CXX_FLAGS "${LIBCXXABI_CXX_FLAGS}") 398 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${LIBCXXABI_CXX_FLAGS}") 399 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${LIBCXXABI_C_FLAGS}") 400 401 #=============================================================================== 402 # Setup Source Code 403 #=============================================================================== 404 405 set(LIBCXXABI_LIBUNWIND_INCLUDES "${LIBCXXABI_LIBUNWIND_INCLUDES}" CACHE PATH 406 "Specify path to libunwind includes." FORCE) 407 set(LIBCXXABI_LIBUNWIND_PATH "${LIBCXXABI_LIBUNWIND_PATH}" CACHE PATH 408 "Specify path to libunwind source." FORCE) 409 410 include_directories(include) 411 if (LIBCXXABI_USE_LLVM_UNWINDER OR LLVM_NATIVE_ARCH MATCHES ARM) 412 find_path( 413 LIBCXXABI_LIBUNWIND_INCLUDES_INTERNAL 414 libunwind.h 415 PATHS ${LIBCXXABI_LIBUNWIND_INCLUDES} 416 ${LIBCXXABI_LIBUNWIND_PATH}/include 417 ${CMAKE_BINARY_DIR}/${LIBCXXABI_LIBUNWIND_INCLUDES} 418 ${LLVM_MAIN_SRC_DIR}/projects/libunwind/include 419 ${LLVM_MAIN_SRC_DIR}/runtimes/libunwind/include 420 NO_DEFAULT_PATH 421 ) 422 423 if (LIBCXXABI_LIBUNWIND_INCLUDES_INTERNAL STREQUAL "LIBCXXABI_LIBUNWIND_INCLUDES_INTERNAL-NOTFOUND") 424 set(LIBCXXABI_LIBUNWIND_INCLUDES_INTERNAL "") 425 endif() 426 427 if (NOT LIBCXXABI_LIBUNWIND_INCLUDES_INTERNAL STREQUAL "") 428 include_directories("${LIBCXXABI_LIBUNWIND_INCLUDES_INTERNAL}") 429 endif() 430 endif() 431 432 # Add source code. This also contains all of the logic for deciding linker flags 433 # soname, etc... 434 add_subdirectory(src) 435 436 if (NOT LIBCXXABI_INCLUDE_TESTS OR (LIBCXXABI_STANDALONE_BUILD AND NOT LIBCXXABI_ENABLE_SHARED)) 437 # We can't reasonably test the system C++ library with a static libc++abi. 438 # We either need to be able to replace libc++abi at run time (with a shared 439 # libc++abi), or we need to be able to replace the C++ runtime (with a non- 440 # standalone build). 441 message(WARNING "The libc++abi tests aren't valid when libc++abi is built " 442 "standalone (i.e. outside of llvm/projects/libcxxabi ) and " 443 "is built without a shared library. Either build a shared " 444 "library, build libc++abi at the same time as you build " 445 "libc++, or do without testing. No check target will be " 446 "available!") 447 else() 448 add_subdirectory(test) 449 add_subdirectory(fuzz) 450 endif() 451
