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