cmake/config-ix.cmake

   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(dirent.h HAVE_DIRENT_H)
  46 check_include_file(dlfcn.h HAVE_DLFCN_H)
  47 check_include_file(errno.h HAVE_ERRNO_H)
  48 check_include_file(execinfo.h HAVE_EXECINFO_H)
  49 check_include_file(fcntl.h HAVE_FCNTL_H)
  50 check_include_file(inttypes.h HAVE_INTTYPES_H)
  51 check_include_file(limits.h HAVE_LIMITS_H)
  52 check_include_file(link.h HAVE_LINK_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(termios.h HAVE_TERMIOS_H)
  71 check_include_file(unistd.h HAVE_UNISTD_H)
  72 check_include_file(utime.h HAVE_UTIME_H)
  73 check_include_file(valgrind/valgrind.h HAVE_VALGRIND_VALGRIND_H)
  74 check_include_file(zlib.h HAVE_ZLIB_H)
  75 check_include_file(fenv.h HAVE_FENV_H)
  76 check_symbol_exists(FE_ALL_EXCEPT "fenv.h" HAVE_DECL_FE_ALL_EXCEPT)
  77 check_symbol_exists(FE_INEXACT "fenv.h" HAVE_DECL_FE_INEXACT)
  78
  79 check_include_file(mach/mach.h HAVE_MACH_MACH_H)
  80 check_include_file(mach-o/dyld.h HAVE_MACH_O_DYLD_H)
  81 check_include_file(histedit.h HAVE_HISTEDIT_H)
  82
  83 # size_t must be defined before including cxxabi.h on FreeBSD 10.0.
  84 check_cxx_source_compiles("
  85 #include <stddef.h>
  86 #include <cxxabi.h>
  87 int main() { return 0; }
  88 " HAVE_CXXABI_H)
  89
  90 # library checks
  91 if( NOT PURE_WINDOWS )
  92   check_library_exists(pthread pthread_create "" HAVE_LIBPTHREAD)
  93   if (HAVE_LIBPTHREAD)
  94     check_library_exists(pthread pthread_getspecific "" HAVE_PTHREAD_GETSPECIFIC)
  95     check_library_exists(pthread pthread_rwlock_init "" HAVE_PTHREAD_RWLOCK_INIT)
  96     check_library_exists(pthread pthread_mutex_lock "" HAVE_PTHREAD_MUTEX_LOCK)
  97   else()
  98     # this could be Android
  99     check_library_exists(c pthread_create "" PTHREAD_IN_LIBC)
 100     if (PTHREAD_IN_LIBC)
 101       check_library_exists(c pthread_getspecific "" HAVE_PTHREAD_GETSPECIFIC)
 102       check_library_exists(c pthread_rwlock_init "" HAVE_PTHREAD_RWLOCK_INIT)
 103       check_library_exists(c pthread_mutex_lock "" HAVE_PTHREAD_MUTEX_LOCK)
 104     endif()
 105   endif()
 106   check_library_exists(dl dlopen "" HAVE_LIBDL)
 107   check_library_exists(rt clock_gettime "" HAVE_LIBRT)
 108 endif()
 109
 110 # Don't look for these libraries on Windows. Also don't look for them if we're
 111 # using MSan, since uninstrmented third party code may call MSan interceptors
 112 # like strlen, leading to false positives.
 113 if( NOT PURE_WINDOWS AND NOT LLVM_USE_SANITIZER MATCHES "Memory.*")
 114   if (LLVM_ENABLE_ZLIB)
 115     check_library_exists(z compress2 "" HAVE_LIBZ)
 116   else()
 117     set(HAVE_LIBZ 0)
 118   endif()
 119   if (HAVE_HISTEDIT_H)
 120     check_library_exists(edit el_init "" HAVE_LIBEDIT)
 121   endif()
 122   if(LLVM_ENABLE_TERMINFO)
 123     set(HAVE_TERMINFO 0)
 124     foreach(library tinfo terminfo curses ncurses ncursesw)
 125       string(TOUPPER ${library} library_suffix)
 126       check_library_exists(${library} setupterm "" HAVE_TERMINFO_${library_suffix})
 127       if(HAVE_TERMINFO_${library_suffix})
 128         set(HAVE_TERMINFO 1)
 129         set(TERMINFO_LIBS "${library}")
 130         break()
 131       endif()
 132     endforeach()
 133   else()
 134     set(HAVE_TERMINFO 0)
 135   endif()
 136 endif()
 137
 138 # function checks
 139 check_symbol_exists(arc4random "stdlib.h" HAVE_DECL_ARC4RANDOM)
 140 check_symbol_exists(backtrace "execinfo.h" HAVE_BACKTRACE)
 141 check_symbol_exists(getpagesize unistd.h HAVE_GETPAGESIZE)
 142 check_symbol_exists(getrusage sys/resource.h HAVE_GETRUSAGE)
 143 check_symbol_exists(setrlimit sys/resource.h HAVE_SETRLIMIT)
 144 check_symbol_exists(isatty unistd.h HAVE_ISATTY)
 145 check_symbol_exists(futimens sys/stat.h HAVE_FUTIMENS)
 146 check_symbol_exists(futimes sys/time.h HAVE_FUTIMES)
 147 if( HAVE_SETJMP_H )
 148   check_symbol_exists(longjmp setjmp.h HAVE_LONGJMP)
 149   check_symbol_exists(setjmp setjmp.h HAVE_SETJMP)
 150   check_symbol_exists(siglongjmp setjmp.h HAVE_SIGLONGJMP)
 151   check_symbol_exists(sigsetjmp setjmp.h HAVE_SIGSETJMP)
 152 endif()
 153 if( HAVE_SYS_UIO_H )
 154   check_symbol_exists(writev sys/uio.h HAVE_WRITEV)
 155 endif()
 156 check_symbol_exists(mallctl malloc_np.h HAVE_MALLCTL)
 157 check_symbol_exists(mallinfo malloc.h HAVE_MALLINFO)
 158 check_symbol_exists(malloc_zone_statistics malloc/malloc.h
 159                     HAVE_MALLOC_ZONE_STATISTICS)
 160 check_symbol_exists(mkdtemp "stdlib.h;unistd.h" HAVE_MKDTEMP)
 161 check_symbol_exists(mkstemp "stdlib.h;unistd.h" HAVE_MKSTEMP)
 162 check_symbol_exists(mktemp "stdlib.h;unistd.h" HAVE_MKTEMP)
 163 check_symbol_exists(closedir "sys/types.h;dirent.h" HAVE_CLOSEDIR)
 164 check_symbol_exists(opendir "sys/types.h;dirent.h" HAVE_OPENDIR)
 165 check_symbol_exists(readdir "sys/types.h;dirent.h" HAVE_READDIR)
 166 check_symbol_exists(getcwd unistd.h HAVE_GETCWD)
 167 check_symbol_exists(gettimeofday sys/time.h HAVE_GETTIMEOFDAY)
 168 check_symbol_exists(getrlimit "sys/types.h;sys/time.h;sys/resource.h" HAVE_GETRLIMIT)
 169 check_symbol_exists(posix_spawn spawn.h HAVE_POSIX_SPAWN)
 170 check_symbol_exists(pread unistd.h HAVE_PREAD)
 171 check_symbol_exists(realpath stdlib.h HAVE_REALPATH)
 172 check_symbol_exists(sbrk unistd.h HAVE_SBRK)
 173 check_symbol_exists(srand48 stdlib.h HAVE_RAND48_SRAND48)
 174 if( HAVE_RAND48_SRAND48 )
 175   check_symbol_exists(lrand48 stdlib.h HAVE_RAND48_LRAND48)
 176   if( HAVE_RAND48_LRAND48 )
 177     check_symbol_exists(drand48 stdlib.h HAVE_RAND48_DRAND48)
 178     if( HAVE_RAND48_DRAND48 )
 179       set(HAVE_RAND48 1 CACHE INTERNAL "are srand48/lrand48/drand48 available?")
 180     endif()
 181   endif()
 182 endif()
 183 check_symbol_exists(strtoll stdlib.h HAVE_STRTOLL)
 184 check_symbol_exists(strtoq stdlib.h HAVE_STRTOQ)
 185 check_symbol_exists(strerror string.h HAVE_STRERROR)
 186 check_symbol_exists(strerror_r string.h HAVE_STRERROR_R)
 187 check_symbol_exists(strerror_s string.h HAVE_DECL_STRERROR_S)
 188 check_symbol_exists(setenv stdlib.h HAVE_SETENV)
 189 if( PURE_WINDOWS )
 190   check_symbol_exists(_chsize_s io.h HAVE__CHSIZE_S)
 191
 192   check_function_exists(_alloca HAVE__ALLOCA)
 193   check_function_exists(__alloca HAVE___ALLOCA)
 194   check_function_exists(__chkstk HAVE___CHKSTK)
 195   check_function_exists(__chkstk_ms HAVE___CHKSTK_MS)
 196   check_function_exists(___chkstk HAVE____CHKSTK)
 197   check_function_exists(___chkstk_ms HAVE____CHKSTK_MS)
 198
 199   check_function_exists(__ashldi3 HAVE___ASHLDI3)
 200   check_function_exists(__ashrdi3 HAVE___ASHRDI3)
 201   check_function_exists(__divdi3 HAVE___DIVDI3)
 202   check_function_exists(__fixdfdi HAVE___FIXDFDI)
 203   check_function_exists(__fixsfdi HAVE___FIXSFDI)
 204   check_function_exists(__floatdidf HAVE___FLOATDIDF)
 205   check_function_exists(__lshrdi3 HAVE___LSHRDI3)
 206   check_function_exists(__moddi3 HAVE___MODDI3)
 207   check_function_exists(__udivdi3 HAVE___UDIVDI3)
 208   check_function_exists(__umoddi3 HAVE___UMODDI3)
 209
 210   check_function_exists(__main HAVE___MAIN)
 211   check_function_exists(__cmpdi2 HAVE___CMPDI2)
 212 endif()
 213 if( HAVE_DLFCN_H )
 214   if( HAVE_LIBDL )
 215     list(APPEND CMAKE_REQUIRED_LIBRARIES dl)
 216   endif()
 217   check_symbol_exists(dlerror dlfcn.h HAVE_DLERROR)
 218   check_symbol_exists(dlopen dlfcn.h HAVE_DLOPEN)
 219   if( HAVE_LIBDL )
 220     list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES dl)
 221   endif()
 222 endif()
 223
 224 check_symbol_exists(__GLIBC__ stdio.h LLVM_USING_GLIBC)
 225 if( LLVM_USING_GLIBC )
 226   add_llvm_definitions( -D_GNU_SOURCE )
 227 endif()
 228
 229 set(headers "sys/types.h")
 230
 231 if (HAVE_INTTYPES_H)
 232   set(headers ${headers} "inttypes.h")
 233 endif()
 234
 235 if (HAVE_STDINT_H)
 236   set(headers ${headers} "stdint.h")
 237 endif()
 238
 239 check_type_exists(int64_t "${headers}" HAVE_INT64_T)
 240 check_type_exists(uint64_t "${headers}" HAVE_UINT64_T)
 241 check_type_exists(u_int64_t "${headers}" HAVE_U_INT64_T)
 242
 243 # available programs checks
 244 function(llvm_find_program name)
 245   string(TOUPPER ${name} NAME)
 246   string(REGEX REPLACE "\\." "_" NAME ${NAME})
 247
 248   find_program(LLVM_PATH_${NAME} NAMES ${ARGV})
 249   mark_as_advanced(LLVM_PATH_${NAME})
 250   if(LLVM_PATH_${NAME})
 251     set(HAVE_${NAME} 1 CACHE INTERNAL "Is ${name} available ?")
 252     mark_as_advanced(HAVE_${NAME})
 253   else(LLVM_PATH_${NAME})
 254     set(HAVE_${NAME} "" CACHE INTERNAL "Is ${name} available ?")
 255   endif(LLVM_PATH_${NAME})
 256 endfunction()
 257
 258 if (LLVM_ENABLE_DOXYGEN)
 259   llvm_find_program(dot)
 260 endif ()
 261
 262 if( LLVM_ENABLE_FFI )
 263   find_path(FFI_INCLUDE_PATH ffi.h PATHS ${FFI_INCLUDE_DIR})
 264   if( EXISTS "${FFI_INCLUDE_PATH}/ffi.h" )
 265     set(FFI_HEADER ffi.h CACHE INTERNAL "")
 266     set(HAVE_FFI_H 1 CACHE INTERNAL "")
 267   else()
 268     find_path(FFI_INCLUDE_PATH ffi/ffi.h PATHS ${FFI_INCLUDE_DIR})
 269     if( EXISTS "${FFI_INCLUDE_PATH}/ffi/ffi.h" )
 270       set(FFI_HEADER ffi/ffi.h CACHE INTERNAL "")
 271       set(HAVE_FFI_FFI_H 1 CACHE INTERNAL "")
 272     endif()
 273   endif()
 274
 275   if( NOT FFI_HEADER )
 276     message(FATAL_ERROR "libffi includes are not found.")
 277   endif()
 278
 279   find_library(FFI_LIBRARY_PATH ffi PATHS ${FFI_LIBRARY_DIR})
 280   if( NOT FFI_LIBRARY_PATH )
 281     message(FATAL_ERROR "libffi is not found.")
 282   endif()
 283
 284   list(APPEND CMAKE_REQUIRED_LIBRARIES ${FFI_LIBRARY_PATH})
 285   list(APPEND CMAKE_REQUIRED_INCLUDES ${FFI_INCLUDE_PATH})
 286   check_symbol_exists(ffi_call ${FFI_HEADER} HAVE_FFI_CALL)
 287   list(REMOVE_ITEM CMAKE_REQUIRED_INCLUDES ${FFI_INCLUDE_PATH})
 288   list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES ${FFI_LIBRARY_PATH})
 289 else()
 290   unset(HAVE_FFI_FFI_H CACHE)
 291   unset(HAVE_FFI_H CACHE)
 292   unset(HAVE_FFI_CALL CACHE)
 293 endif( LLVM_ENABLE_FFI )
 294
 295 # Define LLVM_HAS_ATOMICS if gcc or MSVC atomic builtins are supported.
 296 include(CheckAtomic)
 297
 298 if( LLVM_ENABLE_PIC )
 299   set(ENABLE_PIC 1)
 300 else()
 301   set(ENABLE_PIC 0)
 302   check_cxx_compiler_flag("-fno-pie" SUPPORTS_NO_PIE_FLAG)
 303   if(SUPPORTS_NO_PIE_FLAG)
 304     set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fno-pie")
 305   endif()
 306 endif()
 307
 308 check_cxx_compiler_flag("-Wno-variadic-macros" SUPPORTS_NO_VARIADIC_MACROS_FLAG)
 309
 310 set(USE_NO_MAYBE_UNINITIALIZED 0)
 311 set(USE_NO_UNINITIALIZED 0)
 312
 313 # Disable gcc's potentially uninitialized use analysis as it presents lots of
 314 # false positives.
 315 if (CMAKE_COMPILER_IS_GNUCXX)
 316   check_cxx_compiler_flag("-Wmaybe-uninitialized" HAS_MAYBE_UNINITIALIZED)
 317   if (HAS_MAYBE_UNINITIALIZED)
 318     set(USE_NO_MAYBE_UNINITIALIZED 1)
 319   else()
 320     # Only recent versions of gcc make the distinction between -Wuninitialized
 321     # and -Wmaybe-uninitialized. If -Wmaybe-uninitialized isn't supported, just
 322     # turn off all uninitialized use warnings.
 323     check_cxx_compiler_flag("-Wuninitialized" HAS_UNINITIALIZED)
 324     set(USE_NO_UNINITIALIZED ${HAS_UNINITIALIZED})
 325   endif()
 326 endif()
 327
 328 # By default, we target the host, but this can be overridden at CMake
 329 # invocation time.
 330 include(GetHostTriple)
 331 get_host_triple(LLVM_INFERRED_HOST_TRIPLE)
 332
 333 set(LLVM_HOST_TRIPLE "${LLVM_INFERRED_HOST_TRIPLE}" CACHE STRING
 334     "Host on which LLVM binaries will run")
 335
 336 # Determine the native architecture.
 337 string(TOLOWER "${LLVM_TARGET_ARCH}" LLVM_NATIVE_ARCH)
 338 if( LLVM_NATIVE_ARCH STREQUAL "host" )
 339   string(REGEX MATCH "^[^-]*" LLVM_NATIVE_ARCH ${LLVM_HOST_TRIPLE})
 340 endif ()
 341
 342 if (LLVM_NATIVE_ARCH MATCHES "i[2-6]86")
 343   set(LLVM_NATIVE_ARCH X86)
 344 elseif (LLVM_NATIVE_ARCH STREQUAL "x86")
 345   set(LLVM_NATIVE_ARCH X86)
 346 elseif (LLVM_NATIVE_ARCH STREQUAL "amd64")
 347   set(LLVM_NATIVE_ARCH X86)
 348 elseif (LLVM_NATIVE_ARCH STREQUAL "x86_64")
 349   set(LLVM_NATIVE_ARCH X86)
 350 elseif (LLVM_NATIVE_ARCH MATCHES "sparc")
 351   set(LLVM_NATIVE_ARCH Sparc)
 352 elseif (LLVM_NATIVE_ARCH MATCHES "powerpc")
 353   set(LLVM_NATIVE_ARCH PowerPC)
 354 elseif (LLVM_NATIVE_ARCH MATCHES "aarch64")
 355   set(LLVM_NATIVE_ARCH AArch64)
 356 elseif (LLVM_NATIVE_ARCH MATCHES "arm64")
 357   set(LLVM_NATIVE_ARCH AArch64)
 358 elseif (LLVM_NATIVE_ARCH MATCHES "arm")
 359   set(LLVM_NATIVE_ARCH ARM)
 360 elseif (LLVM_NATIVE_ARCH MATCHES "mips")
 361   set(LLVM_NATIVE_ARCH Mips)
 362 elseif (LLVM_NATIVE_ARCH MATCHES "xcore")
 363   set(LLVM_NATIVE_ARCH XCore)
 364 elseif (LLVM_NATIVE_ARCH MATCHES "msp430")
 365   set(LLVM_NATIVE_ARCH MSP430)
 366 elseif (LLVM_NATIVE_ARCH MATCHES "hexagon")
 367   set(LLVM_NATIVE_ARCH Hexagon)
 368 elseif (LLVM_NATIVE_ARCH MATCHES "s390x")
 369   set(LLVM_NATIVE_ARCH SystemZ)
 370 elseif (LLVM_NATIVE_ARCH MATCHES "wasm32")
 371   set(LLVM_NATIVE_ARCH WebAssembly)
 372 elseif (LLVM_NATIVE_ARCH MATCHES "wasm64")
 373   set(LLVM_NATIVE_ARCH WebAssembly)
 374 else ()
 375   message(FATAL_ERROR "Unknown architecture ${LLVM_NATIVE_ARCH}")
 376 endif ()
 377
 378 # If build targets includes "host", then replace with native architecture.
 379 list(FIND LLVM_TARGETS_TO_BUILD "host" idx)
 380 if( NOT idx LESS 0 )
 381   list(REMOVE_AT LLVM_TARGETS_TO_BUILD ${idx})
 382   list(APPEND LLVM_TARGETS_TO_BUILD ${LLVM_NATIVE_ARCH})
 383   list(REMOVE_DUPLICATES LLVM_TARGETS_TO_BUILD)
 384 endif()
 385
 386 list(FIND LLVM_TARGETS_TO_BUILD ${LLVM_NATIVE_ARCH} NATIVE_ARCH_IDX)
 387 if (NATIVE_ARCH_IDX EQUAL -1)
 388   message(STATUS
 389     "Native target ${LLVM_NATIVE_ARCH} is not selected; lli will not JIT code")
 390 else ()
 391   message(STATUS "Native target architecture is ${LLVM_NATIVE_ARCH}")
 392   set(LLVM_NATIVE_TARGET LLVMInitialize${LLVM_NATIVE_ARCH}Target)
 393   set(LLVM_NATIVE_TARGETINFO LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo)
 394   set(LLVM_NATIVE_TARGETMC LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC)
 395   set(LLVM_NATIVE_ASMPRINTER LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter)
 396
 397   # We don't have an ASM parser for all architectures yet.
 398   if (EXISTS ${CMAKE_SOURCE_DIR}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/CMakeLists.txt)
 399     set(LLVM_NATIVE_ASMPARSER LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser)
 400   endif ()
 401
 402   # We don't have an disassembler for all architectures yet.
 403   if (EXISTS ${CMAKE_SOURCE_DIR}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/CMakeLists.txt)
 404     set(LLVM_NATIVE_DISASSEMBLER LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler)
 405   endif ()
 406 endif ()
 407
 408 if( MINGW )
 409   set(HAVE_LIBPSAPI 1)
 410   set(HAVE_LIBSHELL32 1)
 411   # TODO: Check existence of libraries.
 412   #   include(CheckLibraryExists)
 413 endif( MINGW )
 414
 415 if (NOT HAVE_STRTOLL)
 416   # Use _strtoi64 if strtoll is not available.
 417   check_symbol_exists(_strtoi64 stdlib.h have_strtoi64)
 418   if (have_strtoi64)
 419     set(HAVE_STRTOLL 1)
 420     set(strtoll "_strtoi64")
 421     set(strtoull "_strtoui64")
 422   endif ()
 423 endif ()
 424
 425 if( MSVC )
 426   set(SHLIBEXT ".lib")
 427   set(stricmp "_stricmp")
 428   set(strdup "_strdup")
 429
 430   # See if the DIA SDK is available and usable.
 431   set(MSVC_DIA_SDK_DIR "$ENV{VSINSTALLDIR}DIA SDK")
 432
 433   # Due to a bug in MSVC 2013's installation software, it is possible
 434   # for MSVC 2013 to write the DIA SDK into the Visual Studio 2012
 435   # install directory.  If this happens, the installation is corrupt
 436   # and there's nothing we can do.  It happens with enough frequency
 437   # though that we should handle it.  We do so by simply checking that
 438   # the DIA SDK folder exists.  Should this happen you will need to
 439   # uninstall VS 2012 and then re-install VS 2013.
 440   if (IS_DIRECTORY ${MSVC_DIA_SDK_DIR})
 441     set(HAVE_DIA_SDK 1)
 442   else()
 443     set(HAVE_DIA_SDK 0)
 444   endif()
 445 else()
 446   set(HAVE_DIA_SDK 0)
 447 endif( MSVC )
 448
 449 if( PURE_WINDOWS )
 450   CHECK_CXX_SOURCE_COMPILES("
 451     #include <windows.h>
 452     #include <imagehlp.h>
 453     extern \"C\" void foo(PENUMLOADED_MODULES_CALLBACK);
 454     extern \"C\" void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));
 455     int main(){return 0;}"
 456     HAVE_ELMCB_PCSTR)
 457   if( HAVE_ELMCB_PCSTR )
 458     set(WIN32_ELMCB_PCSTR "PCSTR")
 459   else()
 460     set(WIN32_ELMCB_PCSTR "PSTR")
 461   endif()
 462 endif( PURE_WINDOWS )
 463
 464 # FIXME: Signal handler return type, currently hardcoded to 'void'
 465 set(RETSIGTYPE void)
 466
 467 if( LLVM_ENABLE_THREADS )
 468   # Check if threading primitives aren't supported on this platform
 469   if( NOT HAVE_PTHREAD_H AND NOT WIN32 )
 470     set(LLVM_ENABLE_THREADS 0)
 471   endif()
 472 endif()
 473
 474 if( LLVM_ENABLE_THREADS )
 475   message(STATUS "Threads enabled.")
 476 else( LLVM_ENABLE_THREADS )
 477   message(STATUS "Threads disabled.")
 478 endif()
 479
 480 if (LLVM_ENABLE_ZLIB )
 481   # Check if zlib is available in the system.
 482   if ( NOT HAVE_ZLIB_H OR NOT HAVE_LIBZ )
 483     set(LLVM_ENABLE_ZLIB 0)
 484   endif()
 485 endif()
 486
 487 set(LLVM_PREFIX ${CMAKE_INSTALL_PREFIX})
 488
 489 if (LLVM_ENABLE_DOXYGEN)
 490   message(STATUS "Doxygen enabled.")
 491   find_package(Doxygen REQUIRED)
 492
 493   if (DOXYGEN_FOUND)
 494     # If we find doxygen and we want to enable doxygen by default create a
 495     # global aggregate doxygen target for generating llvm and any/all
 496     # subprojects doxygen documentation.
 497     if (LLVM_BUILD_DOCS)
 498       add_custom_target(doxygen ALL)
 499     endif()
 500
 501     option(LLVM_DOXYGEN_EXTERNAL_SEARCH "Enable doxygen external search." OFF)
 502     if (LLVM_DOXYGEN_EXTERNAL_SEARCH)
 503       set(LLVM_DOXYGEN_SEARCHENGINE_URL "" CACHE STRING "URL to use for external search.")
 504       set(LLVM_DOXYGEN_SEARCH_MAPPINGS "" CACHE STRING "Doxygen Search Mappings")
 505     endif()
 506   endif()
 507 else()
 508   message(STATUS "Doxygen disabled.")
 509 endif()
 510
 511 if (LLVM_ENABLE_SPHINX)
 512   message(STATUS "Sphinx enabled.")
 513   find_package(Sphinx REQUIRED)
 514   if (LLVM_BUILD_DOCS)
 515     add_custom_target(sphinx ALL)
 516   endif()
 517 else()
 518   message(STATUS "Sphinx disabled.")
 519 endif()
 520
 521 set(LLVM_BINDINGS "")
 522 if(WIN32)
 523   message(STATUS "Go bindings disabled.")
 524 else()
 525   find_program(GO_EXECUTABLE NAMES go DOC "go executable")
 526   if(GO_EXECUTABLE STREQUAL "GO_EXECUTABLE-NOTFOUND")
 527     message(STATUS "Go bindings disabled.")
 528   else()
 529     execute_process(COMMAND ${GO_EXECUTABLE} run ${CMAKE_SOURCE_DIR}/bindings/go/conftest.go
 530                     RESULT_VARIABLE GO_CONFTEST)
 531     if(GO_CONFTEST STREQUAL "0")
 532       set(LLVM_BINDINGS "${LLVM_BINDINGS} go")
 533       message(STATUS "Go bindings enabled.")
 534     else()
 535       message(STATUS "Go bindings disabled, need at least Go 1.2.")
 536     endif()
 537   endif()
 538 endif()
 539
 540 find_program(GOLD_EXECUTABLE NAMES ${LLVM_DEFAULT_TARGET_TRIPLE}-ld.gold ld.gold ${LLVM_DEFAULT_TARGET_TRIPLE}-ld ld DOC "The gold linker")
 541 set(LLVM_BINUTILS_INCDIR "" CACHE PATH
 542         "PATH to binutils/include containing plugin-api.h for gold plugin.")
 543
 544 if(APPLE)
 545   find_program(LD64_EXECUTABLE NAMES ld DOC "The ld64 linker")
 546 endif()
 547
 548 include(FindOCaml)
 549 include(AddOCaml)
 550 if(WIN32)
 551   message(STATUS "OCaml bindings disabled.")
 552 else()
 553   find_package(OCaml)
 554   if( NOT OCAML_FOUND )
 555     message(STATUS "OCaml bindings disabled.")
 556   else()
 557     if( OCAML_VERSION VERSION_LESS "4.00.0" )
 558       message(STATUS "OCaml bindings disabled, need OCaml >=4.00.0.")
 559     else()
 560       find_ocamlfind_package(ctypes VERSION 0.4 OPTIONAL)
 561       if( HAVE_OCAML_CTYPES )
 562         message(STATUS "OCaml bindings enabled.")
 563         find_ocamlfind_package(oUnit VERSION 2 OPTIONAL)
 564         set(LLVM_BINDINGS "${LLVM_BINDINGS} ocaml")
 565       else()
 566         message(STATUS "OCaml bindings disabled, need ctypes >=0.4.")
 567       endif()
 568     endif()
 569   endif()
 570 endif()
 571
 572 string(REPLACE " " ";" LLVM_BINDINGS_LIST "${LLVM_BINDINGS}")