1 if( WIN32 AND NOT CYGWIN ) 2 # We consider Cygwin as another Unix 3 set(PURE_WINDOWS 1) 4 endif() 5 6 include(CheckIncludeFile) 7 include(CheckIncludeFileCXX) 8 include(CheckLibraryExists) 9 include(CheckSymbolExists) 10 include(CheckFunctionExists) 11 include(CheckCXXSourceCompiles) 12 include(TestBigEndian) 13 14 include(HandleLLVMStdlib) 15 16 if( UNIX AND NOT BEOS ) 17 # Used by check_symbol_exists: 18 set(CMAKE_REQUIRED_LIBRARIES m) 19 endif() 20 # x86_64 FreeBSD 9.2 requires libcxxrt to be specified explicitly. 21 if( CMAKE_SYSTEM MATCHES "FreeBSD-9.2-RELEASE" AND 22 CMAKE_SIZEOF_VOID_P EQUAL 8 ) 23 list(APPEND CMAKE_REQUIRED_LIBRARIES "cxxrt") 24 endif() 25 26 # Helper macros and functions 27 macro(add_cxx_include result files) 28 set(${result} "") 29 foreach (file_name ${files}) 30 set(${result} "${${result}}#include<${file_name}>\n") 31 endforeach() 32 endmacro(add_cxx_include files result) 33 34 function(check_type_exists type files variable) 35 add_cxx_include(includes "${files}") 36 CHECK_CXX_SOURCE_COMPILES(" 37 ${includes} ${type} typeVar; 38 int main() { 39 return 0; 40 } 41 " ${variable}) 42 endfunction() 43 44 # include checks 45 check_include_file_cxx(cxxabi.h HAVE_CXXABI_H) 46 check_include_file(dirent.h HAVE_DIRENT_H) 47 check_include_file(dlfcn.h HAVE_DLFCN_H) 48 check_include_file(errno.h HAVE_ERRNO_H) 49 check_include_file(execinfo.h HAVE_EXECINFO_H) 50 check_include_file(fcntl.h HAVE_FCNTL_H) 51 check_include_file(inttypes.h HAVE_INTTYPES_H) 52 check_include_file(limits.h HAVE_LIMITS_H) 53 check_include_file(malloc.h HAVE_MALLOC_H) 54 check_include_file(malloc/malloc.h HAVE_MALLOC_MALLOC_H) 55 check_include_file(ndir.h HAVE_NDIR_H) 56 if( NOT PURE_WINDOWS ) 57 check_include_file(pthread.h HAVE_PTHREAD_H) 58 endif() 59 check_include_file(signal.h HAVE_SIGNAL_H) 60 check_include_file(stdint.h HAVE_STDINT_H) 61 check_include_file(sys/dir.h HAVE_SYS_DIR_H) 62 check_include_file(sys/ioctl.h HAVE_SYS_IOCTL_H) 63 check_include_file(sys/mman.h HAVE_SYS_MMAN_H) 64 check_include_file(sys/ndir.h HAVE_SYS_NDIR_H) 65 check_include_file(sys/param.h HAVE_SYS_PARAM_H) 66 check_include_file(sys/resource.h HAVE_SYS_RESOURCE_H) 67 check_include_file(sys/stat.h HAVE_SYS_STAT_H) 68 check_include_file(sys/time.h HAVE_SYS_TIME_H) 69 check_include_file(sys/uio.h HAVE_SYS_UIO_H) 70 check_include_file(sys/wait.h HAVE_SYS_WAIT_H) 71 check_include_file(termios.h HAVE_TERMIOS_H) 72 check_include_file(unistd.h HAVE_UNISTD_H) 73 check_include_file(utime.h HAVE_UTIME_H) 74 check_include_file(valgrind/valgrind.h HAVE_VALGRIND_VALGRIND_H) 75 check_include_file(zlib.h HAVE_ZLIB_H) 76 check_include_file(fenv.h HAVE_FENV_H) 77 check_symbol_exists(FE_ALL_EXCEPT "fenv.h" HAVE_DECL_FE_ALL_EXCEPT) 78 check_symbol_exists(FE_INEXACT "fenv.h" HAVE_DECL_FE_INEXACT) 79 80 check_include_file(mach/mach.h HAVE_MACH_MACH_H) 81 check_include_file(mach-o/dyld.h HAVE_MACH_O_DYLD_H) 82 83 # library checks 84 if( NOT PURE_WINDOWS ) 85 check_library_exists(pthread pthread_create "" HAVE_LIBPTHREAD) 86 if (HAVE_LIBPTHREAD) 87 check_library_exists(pthread pthread_getspecific "" HAVE_PTHREAD_GETSPECIFIC) 88 check_library_exists(pthread pthread_rwlock_init "" HAVE_PTHREAD_RWLOCK_INIT) 89 check_library_exists(pthread pthread_mutex_lock "" HAVE_PTHREAD_MUTEX_LOCK) 90 else() 91 # this could be Android 92 check_library_exists(c pthread_create "" PTHREAD_IN_LIBC) 93 if (PTHREAD_IN_LIBC) 94 check_library_exists(c pthread_getspecific "" HAVE_PTHREAD_GETSPECIFIC) 95 check_library_exists(c pthread_rwlock_init "" HAVE_PTHREAD_RWLOCK_INIT) 96 check_library_exists(c pthread_mutex_lock "" HAVE_PTHREAD_MUTEX_LOCK) 97 endif() 98 endif() 99 check_library_exists(dl dlopen "" HAVE_LIBDL) 100 check_library_exists(rt clock_gettime "" HAVE_LIBRT) 101 if (LLVM_ENABLE_ZLIB) 102 check_library_exists(z compress2 "" HAVE_LIBZ) 103 else() 104 set(HAVE_LIBZ 0) 105 endif() 106 check_library_exists(edit el_init "" HAVE_LIBEDIT) 107 if(LLVM_ENABLE_TERMINFO) 108 set(HAVE_TERMINFO 0) 109 foreach(library tinfo terminfo curses ncurses ncursesw) 110 string(TOUPPER ${library} library_suffix) 111 check_library_exists(${library} setupterm "" HAVE_TERMINFO_${library_suffix}) 112 if(HAVE_TERMINFO_${library_suffix}) 113 set(HAVE_TERMINFO 1) 114 set(TERMINFO_LIBS "${library}") 115 break() 116 endif() 117 endforeach() 118 else() 119 set(HAVE_TERMINFO 0) 120 endif() 121 endif() 122 123 # function checks 124 check_symbol_exists(arc4random "stdlib.h" HAVE_DECL_ARC4RANDOM) 125 check_symbol_exists(backtrace "execinfo.h" HAVE_BACKTRACE) 126 check_symbol_exists(getpagesize unistd.h HAVE_GETPAGESIZE) 127 check_symbol_exists(getrusage sys/resource.h HAVE_GETRUSAGE) 128 check_symbol_exists(setrlimit sys/resource.h HAVE_SETRLIMIT) 129 check_symbol_exists(isatty unistd.h HAVE_ISATTY) 130 check_symbol_exists(isinf cmath HAVE_ISINF_IN_CMATH) 131 check_symbol_exists(isinf math.h HAVE_ISINF_IN_MATH_H) 132 check_symbol_exists(finite ieeefp.h HAVE_FINITE_IN_IEEEFP_H) 133 check_symbol_exists(isnan cmath HAVE_ISNAN_IN_CMATH) 134 check_symbol_exists(isnan math.h HAVE_ISNAN_IN_MATH_H) 135 check_symbol_exists(ceilf math.h HAVE_CEILF) 136 check_symbol_exists(floorf math.h HAVE_FLOORF) 137 check_symbol_exists(fmodf math.h HAVE_FMODF) 138 check_symbol_exists(log math.h HAVE_LOG) 139 check_symbol_exists(log2 math.h HAVE_LOG2) 140 check_symbol_exists(log10 math.h HAVE_LOG10) 141 check_symbol_exists(exp math.h HAVE_EXP) 142 check_symbol_exists(exp2 math.h HAVE_EXP2) 143 check_symbol_exists(exp10 math.h HAVE_EXP10) 144 check_symbol_exists(futimens sys/stat.h HAVE_FUTIMENS) 145 check_symbol_exists(futimes sys/time.h HAVE_FUTIMES) 146 if( HAVE_SETJMP_H ) 147 check_symbol_exists(longjmp setjmp.h HAVE_LONGJMP) 148 check_symbol_exists(setjmp setjmp.h HAVE_SETJMP) 149 check_symbol_exists(siglongjmp setjmp.h HAVE_SIGLONGJMP) 150 check_symbol_exists(sigsetjmp setjmp.h HAVE_SIGSETJMP) 151 endif() 152 if( HAVE_SYS_UIO_H ) 153 check_symbol_exists(writev sys/uio.h HAVE_WRITEV) 154 endif() 155 check_symbol_exists(nearbyintf math.h HAVE_NEARBYINTF) 156 check_symbol_exists(mallinfo malloc.h HAVE_MALLINFO) 157 check_symbol_exists(malloc_zone_statistics malloc/malloc.h 158 HAVE_MALLOC_ZONE_STATISTICS) 159 check_symbol_exists(mkdtemp "stdlib.h;unistd.h" HAVE_MKDTEMP) 160 check_symbol_exists(mkstemp "stdlib.h;unistd.h" HAVE_MKSTEMP) 161 check_symbol_exists(mktemp "stdlib.h;unistd.h" HAVE_MKTEMP) 162 check_symbol_exists(closedir "sys/types.h;dirent.h" HAVE_CLOSEDIR) 163 check_symbol_exists(opendir "sys/types.h;dirent.h" HAVE_OPENDIR) 164 check_symbol_exists(readdir "sys/types.h;dirent.h" HAVE_READDIR) 165 check_symbol_exists(getcwd unistd.h HAVE_GETCWD) 166 check_symbol_exists(gettimeofday sys/time.h HAVE_GETTIMEOFDAY) 167 check_symbol_exists(getrlimit "sys/types.h;sys/time.h;sys/resource.h" HAVE_GETRLIMIT) 168 check_symbol_exists(posix_spawn spawn.h HAVE_POSIX_SPAWN) 169 check_symbol_exists(pread unistd.h HAVE_PREAD) 170 check_symbol_exists(realpath stdlib.h HAVE_REALPATH) 171 check_symbol_exists(sbrk unistd.h HAVE_SBRK) 172 check_symbol_exists(srand48 stdlib.h HAVE_RAND48_SRAND48) 173 if( HAVE_RAND48_SRAND48 ) 174 check_symbol_exists(lrand48 stdlib.h HAVE_RAND48_LRAND48) 175 if( HAVE_RAND48_LRAND48 ) 176 check_symbol_exists(drand48 stdlib.h HAVE_RAND48_DRAND48) 177 if( HAVE_RAND48_DRAND48 ) 178 set(HAVE_RAND48 1 CACHE INTERNAL "are srand48/lrand48/drand48 available?") 179 endif() 180 endif() 181 endif() 182 check_symbol_exists(strtoll stdlib.h HAVE_STRTOLL) 183 check_symbol_exists(strtoq stdlib.h HAVE_STRTOQ) 184 check_symbol_exists(strerror string.h HAVE_STRERROR) 185 check_symbol_exists(strerror_r string.h HAVE_STRERROR_R) 186 check_symbol_exists(strerror_s string.h HAVE_DECL_STRERROR_S) 187 check_symbol_exists(setenv stdlib.h HAVE_SETENV) 188 if( PURE_WINDOWS ) 189 check_symbol_exists(_chsize_s io.h HAVE__CHSIZE_S) 190 191 check_function_exists(_alloca HAVE__ALLOCA) 192 check_function_exists(__alloca HAVE___ALLOCA) 193 check_function_exists(__chkstk HAVE___CHKSTK) 194 check_function_exists(___chkstk HAVE____CHKSTK) 195 196 check_function_exists(__ashldi3 HAVE___ASHLDI3) 197 check_function_exists(__ashrdi3 HAVE___ASHRDI3) 198 check_function_exists(__divdi3 HAVE___DIVDI3) 199 check_function_exists(__fixdfdi HAVE___FIXDFDI) 200 check_function_exists(__fixsfdi HAVE___FIXSFDI) 201 check_function_exists(__floatdidf HAVE___FLOATDIDF) 202 check_function_exists(__lshrdi3 HAVE___LSHRDI3) 203 check_function_exists(__moddi3 HAVE___MODDI3) 204 check_function_exists(__udivdi3 HAVE___UDIVDI3) 205 check_function_exists(__umoddi3 HAVE___UMODDI3) 206 207 check_function_exists(__main HAVE___MAIN) 208 check_function_exists(__cmpdi2 HAVE___CMPDI2) 209 endif() 210 if( HAVE_DLFCN_H ) 211 if( HAVE_LIBDL ) 212 list(APPEND CMAKE_REQUIRED_LIBRARIES dl) 213 endif() 214 check_symbol_exists(dlerror dlfcn.h HAVE_DLERROR) 215 check_symbol_exists(dlopen dlfcn.h HAVE_DLOPEN) 216 if( HAVE_LIBDL ) 217 list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES dl) 218 endif() 219 endif() 220 221 check_symbol_exists(__GLIBC__ stdio.h LLVM_USING_GLIBC) 222 if( LLVM_USING_GLIBC ) 223 add_llvm_definitions( -D_GNU_SOURCE ) 224 endif() 225 226 set(headers "sys/types.h") 227 228 if (HAVE_INTTYPES_H) 229 set(headers ${headers} "inttypes.h") 230 endif() 231 232 if (HAVE_STDINT_H) 233 set(headers ${headers} "stdint.h") 234 endif() 235 236 check_type_exists(int64_t "${headers}" HAVE_INT64_T) 237 check_type_exists(uint64_t "${headers}" HAVE_UINT64_T) 238 check_type_exists(u_int64_t "${headers}" HAVE_U_INT64_T) 239 240 # available programs checks 241 function(llvm_find_program name) 242 string(TOUPPER ${name} NAME) 243 string(REGEX REPLACE "\\." "_" NAME ${NAME}) 244 245 find_program(LLVM_PATH_${NAME} NAMES ${ARGV}) 246 mark_as_advanced(LLVM_PATH_${NAME}) 247 if(LLVM_PATH_${NAME}) 248 set(HAVE_${NAME} 1 CACHE INTERNAL "Is ${name} available ?") 249 mark_as_advanced(HAVE_${NAME}) 250 else(LLVM_PATH_${NAME}) 251 set(HAVE_${NAME} "" CACHE INTERNAL "Is ${name} available ?") 252 endif(LLVM_PATH_${NAME}) 253 endfunction() 254 255 if (LLVM_ENABLE_DOXYGEN) 256 llvm_find_program(dot) 257 endif () 258 259 if( LLVM_ENABLE_FFI ) 260 find_path(FFI_INCLUDE_PATH ffi.h PATHS ${FFI_INCLUDE_DIR}) 261 if( FFI_INCLUDE_PATH ) 262 set(FFI_HEADER ffi.h CACHE INTERNAL "") 263 set(HAVE_FFI_H 1 CACHE INTERNAL "") 264 else() 265 find_path(FFI_INCLUDE_PATH ffi/ffi.h PATHS ${FFI_INCLUDE_DIR}) 266 if( FFI_INCLUDE_PATH ) 267 set(FFI_HEADER ffi/ffi.h CACHE INTERNAL "") 268 set(HAVE_FFI_FFI_H 1 CACHE INTERNAL "") 269 endif() 270 endif() 271 272 if( NOT FFI_HEADER ) 273 message(FATAL_ERROR "libffi includes are not found.") 274 endif() 275 276 find_library(FFI_LIBRARY_PATH ffi PATHS ${FFI_LIBRARY_DIR}) 277 if( NOT FFI_LIBRARY_PATH ) 278 message(FATAL_ERROR "libffi is not found.") 279 endif() 280 281 list(APPEND CMAKE_REQUIRED_LIBRARIES ${FFI_LIBRARY_PATH}) 282 list(APPEND CMAKE_REQUIRED_INCLUDES ${FFI_INCLUDE_PATH}) 283 check_symbol_exists(ffi_call ${FFI_HEADER} HAVE_FFI_CALL) 284 list(REMOVE_ITEM CMAKE_REQUIRED_INCLUDES ${FFI_INCLUDE_PATH}) 285 list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES ${FFI_LIBRARY_PATH}) 286 else() 287 unset(HAVE_FFI_FFI_H CACHE) 288 unset(HAVE_FFI_H CACHE) 289 unset(HAVE_FFI_CALL CACHE) 290 endif( LLVM_ENABLE_FFI ) 291 292 # Define LLVM_HAS_ATOMICS if gcc or MSVC atomic builtins are supported. 293 include(CheckAtomic) 294 295 if( LLVM_ENABLE_PIC ) 296 set(ENABLE_PIC 1) 297 else() 298 set(ENABLE_PIC 0) 299 endif() 300 301 check_cxx_compiler_flag("-Wno-variadic-macros" SUPPORTS_NO_VARIADIC_MACROS_FLAG) 302 303 set(USE_NO_MAYBE_UNINITIALIZED 0) 304 set(USE_NO_UNINITIALIZED 0) 305 306 # Disable gcc's potentially uninitialized use analysis as it presents lots of 307 # false positives. 308 if (CMAKE_COMPILER_IS_GNUCXX) 309 check_cxx_compiler_flag("-Wmaybe-uninitialized" HAS_MAYBE_UNINITIALIZED) 310 if (HAS_MAYBE_UNINITIALIZED) 311 set(USE_NO_MAYBE_UNINITIALIZED 1) 312 else() 313 # Only recent versions of gcc make the distinction between -Wuninitialized 314 # and -Wmaybe-uninitialized. If -Wmaybe-uninitialized isn't supported, just 315 # turn off all uninitialized use warnings. 316 check_cxx_compiler_flag("-Wuninitialized" HAS_UNINITIALIZED) 317 set(USE_NO_UNINITIALIZED ${HAS_UNINITIALIZED}) 318 endif() 319 endif() 320 321 # By default, we target the host, but this can be overridden at CMake 322 # invocation time. 323 include(GetHostTriple) 324 get_host_triple(LLVM_INFERRED_HOST_TRIPLE) 325 326 set(LLVM_HOST_TRIPLE "${LLVM_INFERRED_HOST_TRIPLE}" CACHE STRING 327 "Host on which LLVM binaries will run") 328 329 # Determine the native architecture. 330 string(TOLOWER "${LLVM_TARGET_ARCH}" LLVM_NATIVE_ARCH) 331 if( LLVM_NATIVE_ARCH STREQUAL "host" ) 332 string(REGEX MATCH "^[^-]*" LLVM_NATIVE_ARCH ${LLVM_HOST_TRIPLE}) 333 endif () 334 335 if (LLVM_NATIVE_ARCH MATCHES "i[2-6]86") 336 set(LLVM_NATIVE_ARCH X86) 337 elseif (LLVM_NATIVE_ARCH STREQUAL "x86") 338 set(LLVM_NATIVE_ARCH X86) 339 elseif (LLVM_NATIVE_ARCH STREQUAL "amd64") 340 set(LLVM_NATIVE_ARCH X86) 341 elseif (LLVM_NATIVE_ARCH STREQUAL "x86_64") 342 set(LLVM_NATIVE_ARCH X86) 343 elseif (LLVM_NATIVE_ARCH MATCHES "sparc") 344 set(LLVM_NATIVE_ARCH Sparc) 345 elseif (LLVM_NATIVE_ARCH MATCHES "powerpc") 346 set(LLVM_NATIVE_ARCH PowerPC) 347 elseif (LLVM_NATIVE_ARCH MATCHES "aarch64") 348 set(LLVM_NATIVE_ARCH AArch64) 349 elseif (LLVM_NATIVE_ARCH MATCHES "arm64") 350 set(LLVM_NATIVE_ARCH AArch64) 351 elseif (LLVM_NATIVE_ARCH MATCHES "arm") 352 set(LLVM_NATIVE_ARCH ARM) 353 elseif (LLVM_NATIVE_ARCH MATCHES "mips") 354 set(LLVM_NATIVE_ARCH Mips) 355 elseif (LLVM_NATIVE_ARCH MATCHES "xcore") 356 set(LLVM_NATIVE_ARCH XCore) 357 elseif (LLVM_NATIVE_ARCH MATCHES "msp430") 358 set(LLVM_NATIVE_ARCH MSP430) 359 elseif (LLVM_NATIVE_ARCH MATCHES "hexagon") 360 set(LLVM_NATIVE_ARCH Hexagon) 361 elseif (LLVM_NATIVE_ARCH MATCHES "s390x") 362 set(LLVM_NATIVE_ARCH SystemZ) 363 else () 364 message(FATAL_ERROR "Unknown architecture ${LLVM_NATIVE_ARCH}") 365 endif () 366 367 # If build targets includes "host", then replace with native architecture. 368 list(FIND LLVM_TARGETS_TO_BUILD "host" idx) 369 if( NOT idx LESS 0 ) 370 list(REMOVE_AT LLVM_TARGETS_TO_BUILD ${idx}) 371 list(APPEND LLVM_TARGETS_TO_BUILD ${LLVM_NATIVE_ARCH}) 372 list(REMOVE_DUPLICATES LLVM_TARGETS_TO_BUILD) 373 endif() 374 375 list(FIND LLVM_TARGETS_TO_BUILD ${LLVM_NATIVE_ARCH} NATIVE_ARCH_IDX) 376 if (NATIVE_ARCH_IDX EQUAL -1) 377 message(STATUS 378 "Native target ${LLVM_NATIVE_ARCH} is not selected; lli will not JIT code") 379 else () 380 message(STATUS "Native target architecture is ${LLVM_NATIVE_ARCH}") 381 set(LLVM_NATIVE_TARGET LLVMInitialize${LLVM_NATIVE_ARCH}Target) 382 set(LLVM_NATIVE_TARGETINFO LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo) 383 set(LLVM_NATIVE_TARGETMC LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC) 384 set(LLVM_NATIVE_ASMPRINTER LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter) 385 386 # We don't have an ASM parser for all architectures yet. 387 if (EXISTS ${CMAKE_SOURCE_DIR}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/CMakeLists.txt) 388 set(LLVM_NATIVE_ASMPARSER LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser) 389 endif () 390 391 # We don't have an disassembler for all architectures yet. 392 if (EXISTS ${CMAKE_SOURCE_DIR}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/CMakeLists.txt) 393 set(LLVM_NATIVE_DISASSEMBLER LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler) 394 endif () 395 endif () 396 397 if( MINGW ) 398 set(HAVE_LIBIMAGEHLP 1) 399 set(HAVE_LIBPSAPI 1) 400 set(HAVE_LIBSHELL32 1) 401 # TODO: Check existence of libraries. 402 # include(CheckLibraryExists) 403 # CHECK_LIBRARY_EXISTS(imagehlp ??? . HAVE_LIBIMAGEHLP) 404 endif( MINGW ) 405 406 if (NOT HAVE_STRTOLL) 407 # Use _strtoi64 if strtoll is not available. 408 check_symbol_exists(_strtoi64 stdlib.h have_strtoi64) 409 if (have_strtoi64) 410 set(HAVE_STRTOLL 1) 411 set(strtoll "_strtoi64") 412 set(strtoull "_strtoui64") 413 endif () 414 endif () 415 416 if( MSVC ) 417 set(SHLIBEXT ".lib") 418 set(stricmp "_stricmp") 419 set(strdup "_strdup") 420 endif( MSVC ) 421 422 if( PURE_WINDOWS ) 423 CHECK_CXX_SOURCE_COMPILES(" 424 #include <windows.h> 425 #include <imagehlp.h> 426 extern \"C\" void foo(PENUMLOADED_MODULES_CALLBACK); 427 extern \"C\" void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID)); 428 int main(){return 0;}" 429 HAVE_ELMCB_PCSTR) 430 if( HAVE_ELMCB_PCSTR ) 431 set(WIN32_ELMCB_PCSTR "PCSTR") 432 else() 433 set(WIN32_ELMCB_PCSTR "PSTR") 434 endif() 435 endif( PURE_WINDOWS ) 436 437 # FIXME: Signal handler return type, currently hardcoded to 'void' 438 set(RETSIGTYPE void) 439 440 if( LLVM_ENABLE_THREADS ) 441 # Check if threading primitives aren't supported on this platform 442 if( NOT HAVE_PTHREAD_H AND NOT WIN32 ) 443 set(LLVM_ENABLE_THREADS 0) 444 endif() 445 endif() 446 447 if( LLVM_ENABLE_THREADS ) 448 message(STATUS "Threads enabled.") 449 else( LLVM_ENABLE_THREADS ) 450 message(STATUS "Threads disabled.") 451 endif() 452 453 if (LLVM_ENABLE_ZLIB ) 454 # Check if zlib is available in the system. 455 if ( NOT HAVE_ZLIB_H OR NOT HAVE_LIBZ ) 456 set(LLVM_ENABLE_ZLIB 0) 457 endif() 458 endif() 459 460 set(LLVM_PREFIX ${CMAKE_INSTALL_PREFIX}) 461 462 if (LLVM_ENABLE_DOXYGEN) 463 message(STATUS "Doxygen enabled.") 464 find_package(Doxygen REQUIRED) 465 466 if (DOXYGEN_FOUND) 467 # If we find doxygen and we want to enable doxygen by default create a 468 # global aggregate doxygen target for generating llvm and any/all 469 # subprojects doxygen documentation. 470 if (LLVM_BUILD_DOCS) 471 add_custom_target(doxygen ALL) 472 endif() 473 474 option(LLVM_DOXYGEN_EXTERNAL_SEARCH "Enable doxygen external search." OFF) 475 if (LLVM_DOXYGEN_EXTERNAL_SEARCH) 476 set(LLVM_DOXYGEN_SEARCHENGINE_URL "" CACHE STRING "URL to use for external searhc.") 477 set(LLVM_DOXYGEN_SEARCH_MAPPINGS "" CACHE STRING "Doxygen Search Mappings") 478 endif() 479 endif() 480 else() 481 message(STATUS "Doxygen disabled.") 482 endif() 483 484 if (LLVM_ENABLE_SPHINX) 485 message(STATUS "Sphinx enabled.") 486 find_package(Sphinx REQUIRED) 487 if (LLVM_BUILD_DOCS) 488 add_custom_target(sphinx ALL) 489 endif() 490 else() 491 message(STATUS "Sphinx disabled.") 492 endif() 493
