1if( WIN32 AND NOT CYGWIN ) 2 # We consider Cygwin as another Unix 3 set(PURE_WINDOWS 1) 4endif() 5 6include(CheckIncludeFile) 7include(CheckIncludeFileCXX) 8include(CheckLibraryExists) 9include(CheckSymbolExists) 10include(CheckFunctionExists) 11include(CheckCXXSourceCompiles) 12include(TestBigEndian) 13 14if( UNIX AND NOT BEOS ) 15 # Used by check_symbol_exists: 16 set(CMAKE_REQUIRED_LIBRARIES m) 17endif() 18 19# Helper macros and functions 20macro(add_cxx_include result files) 21 set(${result} "") 22 foreach (file_name ${files}) 23 set(${result} "${${result}}#include<${file_name}>\n") 24 endforeach() 25endmacro(add_cxx_include files result) 26 27function(check_type_exists type files variable) 28 add_cxx_include(includes "${files}") 29 CHECK_CXX_SOURCE_COMPILES(" 30 ${includes} ${type} typeVar; 31 int main() { 32 return 0; 33 } 34 " ${variable}) 35endfunction() 36 37# include checks 38check_include_file_cxx(cxxabi.h HAVE_CXXABI_H) 39check_include_file(dirent.h HAVE_DIRENT_H) 40check_include_file(dlfcn.h HAVE_DLFCN_H) 41check_include_file(errno.h HAVE_ERRNO_H) 42check_include_file(execinfo.h HAVE_EXECINFO_H) 43check_include_file(fcntl.h HAVE_FCNTL_H) 44check_include_file(inttypes.h HAVE_INTTYPES_H) 45check_include_file(limits.h HAVE_LIMITS_H) 46check_include_file(malloc.h HAVE_MALLOC_H) 47check_include_file(malloc/malloc.h HAVE_MALLOC_MALLOC_H) 48check_include_file(ndir.h HAVE_NDIR_H) 49if( NOT PURE_WINDOWS ) 50 check_include_file(pthread.h HAVE_PTHREAD_H) 51endif() 52check_include_file(sanitizer/msan_interface.h HAVE_SANITIZER_MSAN_INTERFACE_H) 53check_include_file(signal.h HAVE_SIGNAL_H) 54check_include_file(stdint.h HAVE_STDINT_H) 55check_include_file(sys/dir.h HAVE_SYS_DIR_H) 56check_include_file(sys/ioctl.h HAVE_SYS_IOCTL_H) 57check_include_file(sys/mman.h HAVE_SYS_MMAN_H) 58check_include_file(sys/ndir.h HAVE_SYS_NDIR_H) 59check_include_file(sys/param.h HAVE_SYS_PARAM_H) 60check_include_file(sys/resource.h HAVE_SYS_RESOURCE_H) 61check_include_file(sys/stat.h HAVE_SYS_STAT_H) 62check_include_file(sys/time.h HAVE_SYS_TIME_H) 63check_include_file(sys/uio.h HAVE_SYS_UIO_H) 64check_include_file(sys/wait.h HAVE_SYS_WAIT_H) 65check_include_file(termios.h HAVE_TERMIOS_H) 66check_include_file(unistd.h HAVE_UNISTD_H) 67check_include_file(utime.h HAVE_UTIME_H) 68check_include_file(valgrind/valgrind.h HAVE_VALGRIND_VALGRIND_H) 69check_include_file(zlib.h HAVE_ZLIB_H) 70check_include_file(fenv.h HAVE_FENV_H) 71check_symbol_exists(FE_ALL_EXCEPT "fenv.h" HAVE_DECL_FE_ALL_EXCEPT) 72check_symbol_exists(FE_INEXACT "fenv.h" HAVE_DECL_FE_INEXACT) 73 74check_include_file(mach/mach.h HAVE_MACH_MACH_H) 75check_include_file(mach-o/dyld.h HAVE_MACH_O_DYLD_H) 76 77# library checks 78if( NOT PURE_WINDOWS ) 79 check_library_exists(pthread pthread_create "" HAVE_LIBPTHREAD) 80 if (HAVE_LIBPTHREAD) 81 check_library_exists(pthread pthread_getspecific "" HAVE_PTHREAD_GETSPECIFIC) 82 check_library_exists(pthread pthread_rwlock_init "" HAVE_PTHREAD_RWLOCK_INIT) 83 check_library_exists(pthread pthread_mutex_lock "" HAVE_PTHREAD_MUTEX_LOCK) 84 else() 85 # this could be Android 86 check_library_exists(c pthread_create "" PTHREAD_IN_LIBC) 87 if (PTHREAD_IN_LIBC) 88 check_library_exists(c pthread_getspecific "" HAVE_PTHREAD_GETSPECIFIC) 89 check_library_exists(c pthread_rwlock_init "" HAVE_PTHREAD_RWLOCK_INIT) 90 check_library_exists(c pthread_mutex_lock "" HAVE_PTHREAD_MUTEX_LOCK) 91 endif() 92 endif() 93 check_library_exists(dl dlopen "" HAVE_LIBDL) 94 check_library_exists(rt clock_gettime "" HAVE_LIBRT) 95 if (LLVM_ENABLE_ZLIB) 96 check_library_exists(z compress2 "" HAVE_LIBZ) 97 else() 98 set(HAVE_LIBZ 0) 99 endif() 100 if(LLVM_ENABLE_TERMINFO) 101 set(HAVE_TERMINFO 0) 102 foreach(library tinfo terminfo curses ncurses ncursesw) 103 string(TOUPPER ${library} library_suffix) 104 check_library_exists(${library} setupterm "" HAVE_TERMINFO_${library_suffix}) 105 if(HAVE_TERMINFO_${library_suffix}) 106 set(HAVE_TERMINFO 1) 107 set(TERMINFO_LIBS "${library}") 108 break() 109 endif() 110 endforeach() 111 else() 112 set(HAVE_TERMINFO 0) 113 endif() 114endif() 115 116# function checks 117check_symbol_exists(arc4random "stdlib.h" HAVE_ARC4RANDOM) 118check_symbol_exists(backtrace "execinfo.h" HAVE_BACKTRACE) 119check_symbol_exists(getpagesize unistd.h HAVE_GETPAGESIZE) 120check_symbol_exists(getrusage sys/resource.h HAVE_GETRUSAGE) 121check_symbol_exists(setrlimit sys/resource.h HAVE_SETRLIMIT) 122check_symbol_exists(isatty unistd.h HAVE_ISATTY) 123check_symbol_exists(isinf cmath HAVE_ISINF_IN_CMATH) 124check_symbol_exists(isinf math.h HAVE_ISINF_IN_MATH_H) 125check_symbol_exists(finite ieeefp.h HAVE_FINITE_IN_IEEEFP_H) 126check_symbol_exists(isnan cmath HAVE_ISNAN_IN_CMATH) 127check_symbol_exists(isnan math.h HAVE_ISNAN_IN_MATH_H) 128check_symbol_exists(ceilf math.h HAVE_CEILF) 129check_symbol_exists(floorf math.h HAVE_FLOORF) 130check_symbol_exists(fmodf math.h HAVE_FMODF) 131check_symbol_exists(log math.h HAVE_LOG) 132check_symbol_exists(log2 math.h HAVE_LOG2) 133check_symbol_exists(log10 math.h HAVE_LOG10) 134check_symbol_exists(exp math.h HAVE_EXP) 135check_symbol_exists(exp2 math.h HAVE_EXP2) 136check_symbol_exists(exp10 math.h HAVE_EXP10) 137check_symbol_exists(futimens sys/stat.h HAVE_FUTIMENS) 138check_symbol_exists(futimes sys/time.h HAVE_FUTIMES) 139if( HAVE_SETJMP_H ) 140 check_symbol_exists(longjmp setjmp.h HAVE_LONGJMP) 141 check_symbol_exists(setjmp setjmp.h HAVE_SETJMP) 142 check_symbol_exists(siglongjmp setjmp.h HAVE_SIGLONGJMP) 143 check_symbol_exists(sigsetjmp setjmp.h HAVE_SIGSETJMP) 144endif() 145if( HAVE_SYS_UIO_H ) 146 check_symbol_exists(writev sys/uio.h HAVE_WRITEV) 147endif() 148check_symbol_exists(nearbyintf math.h HAVE_NEARBYINTF) 149check_symbol_exists(mallinfo malloc.h HAVE_MALLINFO) 150check_symbol_exists(malloc_zone_statistics malloc/malloc.h 151 HAVE_MALLOC_ZONE_STATISTICS) 152check_symbol_exists(mkdtemp "stdlib.h;unistd.h" HAVE_MKDTEMP) 153check_symbol_exists(mkstemp "stdlib.h;unistd.h" HAVE_MKSTEMP) 154check_symbol_exists(mktemp "stdlib.h;unistd.h" HAVE_MKTEMP) 155check_symbol_exists(closedir "sys/types.h;dirent.h" HAVE_CLOSEDIR) 156check_symbol_exists(opendir "sys/types.h;dirent.h" HAVE_OPENDIR) 157check_symbol_exists(readdir "sys/types.h;dirent.h" HAVE_READDIR) 158check_symbol_exists(getcwd unistd.h HAVE_GETCWD) 159check_symbol_exists(gettimeofday sys/time.h HAVE_GETTIMEOFDAY) 160check_symbol_exists(getrlimit "sys/types.h;sys/time.h;sys/resource.h" HAVE_GETRLIMIT) 161check_symbol_exists(posix_spawn spawn.h HAVE_POSIX_SPAWN) 162check_symbol_exists(pread unistd.h HAVE_PREAD) 163check_symbol_exists(realpath stdlib.h HAVE_REALPATH) 164check_symbol_exists(sbrk unistd.h HAVE_SBRK) 165check_symbol_exists(srand48 stdlib.h HAVE_RAND48_SRAND48) 166if( HAVE_RAND48_SRAND48 ) 167 check_symbol_exists(lrand48 stdlib.h HAVE_RAND48_LRAND48) 168 if( HAVE_RAND48_LRAND48 ) 169 check_symbol_exists(drand48 stdlib.h HAVE_RAND48_DRAND48) 170 if( HAVE_RAND48_DRAND48 ) 171 set(HAVE_RAND48 1 CACHE INTERNAL "are srand48/lrand48/drand48 available?") 172 endif() 173 endif() 174endif() 175check_symbol_exists(strtoll stdlib.h HAVE_STRTOLL) 176check_symbol_exists(strtoq stdlib.h HAVE_STRTOQ) 177check_symbol_exists(strerror string.h HAVE_STRERROR) 178check_symbol_exists(strerror_r string.h HAVE_STRERROR_R) 179check_symbol_exists(strerror_s string.h HAVE_DECL_STRERROR_S) 180check_symbol_exists(setenv stdlib.h HAVE_SETENV) 181if( PURE_WINDOWS ) 182 check_symbol_exists(_chsize_s io.h HAVE__CHSIZE_S) 183 184 check_function_exists(_alloca HAVE__ALLOCA) 185 check_function_exists(__alloca HAVE___ALLOCA) 186 check_function_exists(__chkstk HAVE___CHKSTK) 187 check_function_exists(___chkstk HAVE____CHKSTK) 188 189 check_function_exists(__ashldi3 HAVE___ASHLDI3) 190 check_function_exists(__ashrdi3 HAVE___ASHRDI3) 191 check_function_exists(__divdi3 HAVE___DIVDI3) 192 check_function_exists(__fixdfdi HAVE___FIXDFDI) 193 check_function_exists(__fixsfdi HAVE___FIXSFDI) 194 check_function_exists(__floatdidf HAVE___FLOATDIDF) 195 check_function_exists(__lshrdi3 HAVE___LSHRDI3) 196 check_function_exists(__moddi3 HAVE___MODDI3) 197 check_function_exists(__udivdi3 HAVE___UDIVDI3) 198 check_function_exists(__umoddi3 HAVE___UMODDI3) 199 200 check_function_exists(__main HAVE___MAIN) 201 check_function_exists(__cmpdi2 HAVE___CMPDI2) 202endif() 203if( HAVE_DLFCN_H ) 204 if( HAVE_LIBDL ) 205 list(APPEND CMAKE_REQUIRED_LIBRARIES dl) 206 endif() 207 check_symbol_exists(dlerror dlfcn.h HAVE_DLERROR) 208 check_symbol_exists(dlopen dlfcn.h HAVE_DLOPEN) 209 if( HAVE_LIBDL ) 210 list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES dl) 211 endif() 212endif() 213 214check_symbol_exists(__GLIBC__ stdio.h LLVM_USING_GLIBC) 215if( LLVM_USING_GLIBC ) 216 add_llvm_definitions( -D_GNU_SOURCE ) 217endif() 218 219set(headers "sys/types.h") 220 221if (HAVE_INTTYPES_H) 222 set(headers ${headers} "inttypes.h") 223endif() 224 225if (HAVE_STDINT_H) 226 set(headers ${headers} "stdint.h") 227endif() 228 229check_type_exists(int64_t "${headers}" HAVE_INT64_T) 230check_type_exists(uint64_t "${headers}" HAVE_UINT64_T) 231check_type_exists(u_int64_t "${headers}" HAVE_U_INT64_T) 232 233# available programs checks 234function(llvm_find_program name) 235 string(TOUPPER ${name} NAME) 236 string(REGEX REPLACE "\\." "_" NAME ${NAME}) 237 238 find_program(LLVM_PATH_${NAME} NAMES ${ARGV}) 239 mark_as_advanced(LLVM_PATH_${NAME}) 240 if(LLVM_PATH_${NAME}) 241 set(HAVE_${NAME} 1 CACHE INTERNAL "Is ${name} available ?") 242 mark_as_advanced(HAVE_${NAME}) 243 else(LLVM_PATH_${NAME}) 244 set(HAVE_${NAME} "" CACHE INTERNAL "Is ${name} available ?") 245 endif(LLVM_PATH_${NAME}) 246endfunction() 247 248llvm_find_program(gv) 249llvm_find_program(circo) 250llvm_find_program(twopi) 251llvm_find_program(neato) 252llvm_find_program(fdp) 253llvm_find_program(dot) 254llvm_find_program(dotty) 255llvm_find_program(xdot xdot.py) 256llvm_find_program(Graphviz) 257 258if( LLVM_ENABLE_FFI ) 259 find_path(FFI_INCLUDE_PATH ffi.h PATHS ${FFI_INCLUDE_DIR}) 260 if( FFI_INCLUDE_PATH ) 261 set(FFI_HEADER ffi.h CACHE INTERNAL "") 262 set(HAVE_FFI_H 1 CACHE INTERNAL "") 263 else() 264 find_path(FFI_INCLUDE_PATH ffi/ffi.h PATHS ${FFI_INCLUDE_DIR}) 265 if( FFI_INCLUDE_PATH ) 266 set(FFI_HEADER ffi/ffi.h CACHE INTERNAL "") 267 set(HAVE_FFI_FFI_H 1 CACHE INTERNAL "") 268 endif() 269 endif() 270 271 if( NOT FFI_HEADER ) 272 message(FATAL_ERROR "libffi includes are not found.") 273 endif() 274 275 find_library(FFI_LIBRARY_PATH ffi PATHS ${FFI_LIBRARY_DIR}) 276 if( NOT FFI_LIBRARY_PATH ) 277 message(FATAL_ERROR "libffi is not found.") 278 endif() 279 280 list(APPEND CMAKE_REQUIRED_LIBRARIES ${FFI_LIBRARY_PATH}) 281 list(APPEND CMAKE_REQUIRED_INCLUDES ${FFI_INCLUDE_PATH}) 282 check_symbol_exists(ffi_call ${FFI_HEADER} HAVE_FFI_CALL) 283 list(REMOVE_ITEM CMAKE_REQUIRED_INCLUDES ${FFI_INCLUDE_PATH}) 284 list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES ${FFI_LIBRARY_PATH}) 285else() 286 unset(HAVE_FFI_FFI_H CACHE) 287 unset(HAVE_FFI_H CACHE) 288 unset(HAVE_FFI_CALL CACHE) 289endif( LLVM_ENABLE_FFI ) 290 291# Define LLVM_HAS_ATOMICS if gcc or MSVC atomic builtins are supported. 292include(CheckAtomic) 293 294if( LLVM_ENABLE_PIC ) 295 set(ENABLE_PIC 1) 296else() 297 set(ENABLE_PIC 0) 298endif() 299 300find_package(LibXml2) 301if (LIBXML2_FOUND) 302 set(CLANG_HAVE_LIBXML 1) 303 # When cross-compiling, liblzma is not detected as a dependency for libxml2, 304 # which makes linking c-index-test fail. But for native builds, all libraries 305 # are installed and checked by CMake before Makefiles are generated and everything 306 # works according to the plan. However, if a -llzma is added to native builds, 307 # an additional requirement on the static liblzma.a is required, but will not 308 # be checked by CMake, breaking native compilation. 309 # Since this is only pertinent to cross-compilations, and there's no way CMake 310 # can check for every foreign library on every OS, we add the dep and warn the dev. 311 if ( CMAKE_CROSSCOMPILING ) 312 if (NOT PC_LIBXML_VERSION VERSION_LESS "2.8.0") 313 message(STATUS "Adding LZMA as a dep to XML2 for cross-compilation, make sure liblzma.a is available.") 314 set(LIBXML2_LIBRARIES ${LIBXML2_LIBRARIES} "-llzma") 315 endif () 316 endif () 317endif () 318 319include(CheckCXXCompilerFlag) 320 321check_cxx_compiler_flag("-Wno-variadic-macros" SUPPORTS_NO_VARIADIC_MACROS_FLAG) 322 323set(USE_NO_MAYBE_UNINITIALIZED 0) 324set(USE_NO_UNINITIALIZED 0) 325 326# Disable gcc's potentially uninitialized use analysis as it presents lots of 327# false positives. 328if (CMAKE_COMPILER_IS_GNUCXX) 329 check_cxx_compiler_flag("-Wmaybe-uninitialized" HAS_MAYBE_UNINITIALIZED) 330 if (HAS_MAYBE_UNINITIALIZED) 331 set(USE_NO_MAYBE_UNINITIALIZED 1) 332 else() 333 # Only recent versions of gcc make the distinction between -Wuninitialized 334 # and -Wmaybe-uninitialized. If -Wmaybe-uninitialized isn't supported, just 335 # turn off all uninitialized use warnings. 336 check_cxx_compiler_flag("-Wuninitialized" HAS_UNINITIALIZED) 337 set(USE_NO_UNINITIALIZED ${HAS_UNINITIALIZED}) 338 endif() 339endif() 340 341# By default, we target the host, but this can be overridden at CMake 342# invocation time. 343include(GetHostTriple) 344get_host_triple(LLVM_INFERRED_HOST_TRIPLE) 345 346set(LLVM_HOST_TRIPLE "${LLVM_INFERRED_HOST_TRIPLE}" CACHE STRING 347 "Host on which LLVM binaries will run") 348 349# Determine the native architecture. 350string(TOLOWER "${LLVM_TARGET_ARCH}" LLVM_NATIVE_ARCH) 351if( LLVM_NATIVE_ARCH STREQUAL "host" ) 352 string(REGEX MATCH "^[^-]*" LLVM_NATIVE_ARCH ${LLVM_HOST_TRIPLE}) 353endif () 354 355if (LLVM_NATIVE_ARCH MATCHES "i[2-6]86") 356 set(LLVM_NATIVE_ARCH X86) 357elseif (LLVM_NATIVE_ARCH STREQUAL "x86") 358 set(LLVM_NATIVE_ARCH X86) 359elseif (LLVM_NATIVE_ARCH STREQUAL "amd64") 360 set(LLVM_NATIVE_ARCH X86) 361elseif (LLVM_NATIVE_ARCH STREQUAL "x86_64") 362 set(LLVM_NATIVE_ARCH X86) 363elseif (LLVM_NATIVE_ARCH MATCHES "sparc") 364 set(LLVM_NATIVE_ARCH Sparc) 365elseif (LLVM_NATIVE_ARCH MATCHES "powerpc") 366 set(LLVM_NATIVE_ARCH PowerPC) 367elseif (LLVM_NATIVE_ARCH MATCHES "aarch64") 368 set(LLVM_NATIVE_ARCH AArch64) 369elseif (LLVM_NATIVE_ARCH MATCHES "arm") 370 set(LLVM_NATIVE_ARCH ARM) 371elseif (LLVM_NATIVE_ARCH MATCHES "mips") 372 set(LLVM_NATIVE_ARCH Mips) 373elseif (LLVM_NATIVE_ARCH MATCHES "xcore") 374 set(LLVM_NATIVE_ARCH XCore) 375elseif (LLVM_NATIVE_ARCH MATCHES "msp430") 376 set(LLVM_NATIVE_ARCH MSP430) 377elseif (LLVM_NATIVE_ARCH MATCHES "hexagon") 378 set(LLVM_NATIVE_ARCH Hexagon) 379elseif (LLVM_NATIVE_ARCH MATCHES "s390x") 380 set(LLVM_NATIVE_ARCH SystemZ) 381else () 382 message(FATAL_ERROR "Unknown architecture ${LLVM_NATIVE_ARCH}") 383endif () 384 385# If build targets includes "host", then replace with native architecture. 386list(FIND LLVM_TARGETS_TO_BUILD "host" idx) 387if( NOT idx LESS 0 ) 388 list(REMOVE_AT LLVM_TARGETS_TO_BUILD ${idx}) 389 list(APPEND LLVM_TARGETS_TO_BUILD ${LLVM_NATIVE_ARCH}) 390 list(REMOVE_DUPLICATES LLVM_TARGETS_TO_BUILD) 391endif() 392 393list(FIND LLVM_TARGETS_TO_BUILD ${LLVM_NATIVE_ARCH} NATIVE_ARCH_IDX) 394if (NATIVE_ARCH_IDX EQUAL -1) 395 message(STATUS 396 "Native target ${LLVM_NATIVE_ARCH} is not selected; lli will not JIT code") 397else () 398 message(STATUS "Native target architecture is ${LLVM_NATIVE_ARCH}") 399 set(LLVM_NATIVE_TARGET LLVMInitialize${LLVM_NATIVE_ARCH}Target) 400 set(LLVM_NATIVE_TARGETINFO LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo) 401 set(LLVM_NATIVE_TARGETMC LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC) 402 set(LLVM_NATIVE_ASMPRINTER LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter) 403 404 # We don't have an ASM parser for all architectures yet. 405 if (EXISTS ${CMAKE_SOURCE_DIR}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/CMakeLists.txt) 406 set(LLVM_NATIVE_ASMPARSER LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser) 407 endif () 408 409 # We don't have an disassembler for all architectures yet. 410 if (EXISTS ${CMAKE_SOURCE_DIR}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/CMakeLists.txt) 411 set(LLVM_NATIVE_DISASSEMBLER LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler) 412 endif () 413endif () 414 415if( MINGW ) 416 set(HAVE_LIBIMAGEHLP 1) 417 set(HAVE_LIBPSAPI 1) 418 set(HAVE_LIBSHELL32 1) 419 # TODO: Check existence of libraries. 420 # include(CheckLibraryExists) 421 # CHECK_LIBRARY_EXISTS(imagehlp ??? . HAVE_LIBIMAGEHLP) 422endif( MINGW ) 423 424if (NOT HAVE_STRTOLL) 425 # Use _strtoi64 if strtoll is not available. 426 check_symbol_exists(_strtoi64 stdlib.h have_strtoi64) 427 if (have_strtoi64) 428 set(HAVE_STRTOLL 1) 429 set(strtoll "_strtoi64") 430 set(strtoull "_strtoui64") 431 endif () 432endif () 433 434if( MSVC ) 435 set(SHLIBEXT ".lib") 436 set(stricmp "_stricmp") 437 set(strdup "_strdup") 438endif( MSVC ) 439 440if( PURE_WINDOWS ) 441 CHECK_CXX_SOURCE_COMPILES(" 442 #include <windows.h> 443 #include <imagehlp.h> 444 extern \"C\" void foo(PENUMLOADED_MODULES_CALLBACK); 445 extern \"C\" void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID)); 446 int main(){return 0;}" 447 HAVE_ELMCB_PCSTR) 448 if( HAVE_ELMCB_PCSTR ) 449 set(WIN32_ELMCB_PCSTR "PCSTR") 450 else() 451 set(WIN32_ELMCB_PCSTR "PSTR") 452 endif() 453endif( PURE_WINDOWS ) 454 455# FIXME: Signal handler return type, currently hardcoded to 'void' 456set(RETSIGTYPE void) 457 458if( LLVM_ENABLE_THREADS ) 459 # Check if threading primitives aren't supported on this platform 460 if( NOT HAVE_PTHREAD_H AND NOT WIN32 ) 461 set(LLVM_ENABLE_THREADS 0) 462 endif() 463endif() 464 465if( LLVM_ENABLE_THREADS ) 466 message(STATUS "Threads enabled.") 467else( LLVM_ENABLE_THREADS ) 468 message(STATUS "Threads disabled.") 469endif() 470 471if (LLVM_ENABLE_ZLIB ) 472 # Check if zlib is available in the system. 473 if ( NOT HAVE_ZLIB_H OR NOT HAVE_LIBZ ) 474 set(LLVM_ENABLE_ZLIB 0) 475 endif() 476endif() 477 478set(LLVM_PREFIX ${CMAKE_INSTALL_PREFIX}) 479 480if (LLVM_ENABLE_DOXYGEN) 481 message(STATUS "Doxygen enabled.") 482 find_package(Doxygen) 483 484 if (DOXYGEN_FOUND) 485 # If we find doxygen and we want to enable doxygen by default create a 486 # global aggregate doxygen target for generating llvm and any/all 487 # subprojects doxygen documentation. 488 if (LLVM_BUILD_DOCS) 489 add_custom_target(doxygen ALL) 490 endif() 491 492 option(LLVM_DOXYGEN_EXTERNAL_SEARCH "Enable doxygen external search." OFF) 493 if (LLVM_DOXYGEN_EXTERNAL_SEARCH) 494 set(LLVM_DOXYGEN_SEARCHENGINE_URL "" CACHE STRING "URL to use for external searhc.") 495 set(LLVM_DOXYGEN_SEARCH_MAPPINGS "" CACHE STRING "Doxygen Search Mappings") 496 endif() 497 endif() 498else() 499 message(STATUS "Doxygen disabled.") 500endif() 501