1 if( WIN32 AND NOT CYGWIN )
2 # We consider Cygwin as another Unix
6 include(CheckIncludeFile)
7 include(CheckLibraryExists)
8 include(CheckSymbolExists)
9 include(CheckFunctionExists)
10 include(CheckCCompilerFlag)
12 include(CheckCompilerVersion)
13 include(HandleLLVMStdlib)
15 if( UNIX AND NOT (BEOS OR HAIKU) )
16 # Used by check_symbol_exists:
17 list(APPEND CMAKE_REQUIRED_LIBRARIES "m")
19 # x86_64 FreeBSD 9.2 requires libcxxrt to be specified explicitly.
20 if( CMAKE_SYSTEM MATCHES "FreeBSD-9.2-RELEASE" AND
21 CMAKE_SIZEOF_VOID_P EQUAL 8 )
22 list(APPEND CMAKE_REQUIRED_LIBRARIES "cxxrt")
26 check_include_file(dlfcn.h HAVE_DLFCN_H)
27 check_include_file(errno.h HAVE_ERRNO_H)
28 check_include_file(fcntl.h HAVE_FCNTL_H)
29 check_include_file(link.h HAVE_LINK_H)
30 check_include_file(malloc.h HAVE_MALLOC_H)
31 check_include_file(malloc/malloc.h HAVE_MALLOC_MALLOC_H)
32 if( NOT PURE_WINDOWS )
33 check_include_file(pthread.h HAVE_PTHREAD_H)
35 check_include_file(signal.h HAVE_SIGNAL_H)
36 check_include_file(sys/ioctl.h HAVE_SYS_IOCTL_H)
37 check_include_file(sys/mman.h HAVE_SYS_MMAN_H)
38 check_include_file(sys/param.h HAVE_SYS_PARAM_H)
39 check_include_file(sys/resource.h HAVE_SYS_RESOURCE_H)
40 check_include_file(sys/stat.h HAVE_SYS_STAT_H)
41 check_include_file(sys/time.h HAVE_SYS_TIME_H)
42 check_include_file(sys/types.h HAVE_SYS_TYPES_H)
43 check_include_file(termios.h HAVE_TERMIOS_H)
44 check_include_file(unistd.h HAVE_UNISTD_H)
45 check_include_file(valgrind/valgrind.h HAVE_VALGRIND_VALGRIND_H)
46 check_include_file(zlib.h HAVE_ZLIB_H)
47 check_include_file(fenv.h HAVE_FENV_H)
48 check_symbol_exists(FE_ALL_EXCEPT "fenv.h" HAVE_DECL_FE_ALL_EXCEPT)
49 check_symbol_exists(FE_INEXACT "fenv.h" HAVE_DECL_FE_INEXACT)
51 check_include_file(mach/mach.h HAVE_MACH_MACH_H)
52 check_include_file(histedit.h HAVE_HISTEDIT_H)
53 check_include_file(CrashReporterClient.h HAVE_CRASHREPORTERCLIENT_H)
55 include(CheckCSourceCompiles)
56 CHECK_C_SOURCE_COMPILES("
57 static const char *__crashreporter_info__ = 0;
58 asm(\".desc ___crashreporter_info__, 0x10\");
59 int main() { return 0; }"
60 HAVE_CRASHREPORTER_INFO)
63 if(${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
64 check_include_file(linux/magic.h HAVE_LINUX_MAGIC_H)
65 if(NOT HAVE_LINUX_MAGIC_H)
66 # older kernels use split files
67 check_include_file(linux/nfs_fs.h HAVE_LINUX_NFS_FS_H)
68 check_include_file(linux/smb.h HAVE_LINUX_SMB_H)
73 if( NOT PURE_WINDOWS )
74 check_library_exists(pthread pthread_create "" HAVE_LIBPTHREAD)
76 check_library_exists(pthread pthread_getspecific "" HAVE_PTHREAD_GETSPECIFIC)
77 check_library_exists(pthread pthread_rwlock_init "" HAVE_PTHREAD_RWLOCK_INIT)
78 check_library_exists(pthread pthread_mutex_lock "" HAVE_PTHREAD_MUTEX_LOCK)
80 # this could be Android
81 check_library_exists(c pthread_create "" PTHREAD_IN_LIBC)
83 check_library_exists(c pthread_getspecific "" HAVE_PTHREAD_GETSPECIFIC)
84 check_library_exists(c pthread_rwlock_init "" HAVE_PTHREAD_RWLOCK_INIT)
85 check_library_exists(c pthread_mutex_lock "" HAVE_PTHREAD_MUTEX_LOCK)
88 check_library_exists(dl dlopen "" HAVE_LIBDL)
89 check_library_exists(rt clock_gettime "" HAVE_LIBRT)
96 # We want to find pthreads library and at the moment we do want to
97 # have it reported as '-l<lib>' instead of '-pthread'.
98 # TODO: switch to -pthread once the rest of the build system can deal with it.
99 set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
100 set(THREADS_HAVE_PTHREAD_ARG Off)
101 find_package(Threads REQUIRED)
102 set(LLVM_PTHREAD_LIB ${CMAKE_THREAD_LIBS_INIT})
105 # Don't look for these libraries if we're using MSan, since uninstrumented third
106 # party code may call MSan interceptors like strlen, leading to false positives.
107 if(NOT LLVM_USE_SANITIZER MATCHES "Memory.*")
110 foreach(library z zlib_static zlib)
111 string(TOUPPER ${library} library_suffix)
112 check_library_exists(${library} compress2 "" HAVE_LIBZ_${library_suffix})
113 if(HAVE_LIBZ_${library_suffix})
115 set(ZLIB_LIBRARIES "${library}")
121 # Don't look for these libraries on Windows.
122 if (NOT PURE_WINDOWS)
123 # Skip libedit if using ASan as it contains memory leaks.
124 if (LLVM_ENABLE_LIBEDIT AND HAVE_HISTEDIT_H AND NOT LLVM_USE_SANITIZER MATCHES ".*Address.*")
125 check_library_exists(edit el_init "" HAVE_LIBEDIT)
129 if(LLVM_ENABLE_TERMINFO)
131 foreach(library tinfo terminfo curses ncurses ncursesw)
132 string(TOUPPER ${library} library_suffix)
133 check_library_exists(${library} setupterm "" HAVE_TERMINFO_${library_suffix})
134 if(HAVE_TERMINFO_${library_suffix})
136 set(TERMINFO_LIBS "${library}")
144 find_library(ICONV_LIBRARY_PATH NAMES iconv libiconv libiconv-2 c)
145 set(LLVM_LIBXML2_ENABLED 0)
147 if((LLVM_ENABLE_LIBXML2) AND ((CMAKE_SYSTEM_NAME MATCHES "Linux") AND (ICONV_LIBRARY_PATH) OR APPLE))
148 find_package(LibXml2)
150 set(LLVM_LIBXML2_ENABLED 1)
151 include_directories(${LIBXML2_INCLUDE_DIR})
152 set(LIBXML2_LIBS "xml2")
158 if (LLVM_ENABLE_LIBXML2 STREQUAL "FORCE_ON" AND NOT LLVM_LIBXML2_ENABLED)
159 message(FATAL_ERROR "Failed to congifure libxml2")
162 check_library_exists(xar xar_open "" HAVE_LIBXAR)
168 check_symbol_exists(arc4random "stdlib.h" HAVE_DECL_ARC4RANDOM)
169 find_package(Backtrace)
170 set(HAVE_BACKTRACE ${Backtrace_FOUND})
171 set(BACKTRACE_HEADER ${Backtrace_HEADER})
173 # Prevent check_symbol_exists from using API that is not supported for a given
175 check_c_compiler_flag("-Werror=unguarded-availability-new" "C_SUPPORTS_WERROR_UNGUARDED_AVAILABILITY_NEW")
176 if(C_SUPPORTS_WERROR_UNGUARDED_AVAILABILITY_NEW)
177 set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -Werror=unguarded-availability-new")
180 check_symbol_exists(_Unwind_Backtrace "unwind.h" HAVE__UNWIND_BACKTRACE)
181 check_symbol_exists(getpagesize unistd.h HAVE_GETPAGESIZE)
182 check_symbol_exists(sysconf unistd.h HAVE_SYSCONF)
183 check_symbol_exists(getrusage sys/resource.h HAVE_GETRUSAGE)
184 check_symbol_exists(setrlimit sys/resource.h HAVE_SETRLIMIT)
185 check_symbol_exists(isatty unistd.h HAVE_ISATTY)
186 check_symbol_exists(futimens sys/stat.h HAVE_FUTIMENS)
187 check_symbol_exists(futimes sys/time.h HAVE_FUTIMES)
188 check_symbol_exists(posix_fallocate fcntl.h HAVE_POSIX_FALLOCATE)
189 # AddressSanitizer conflicts with lib/Support/Unix/Signals.inc
190 # Avoid sigaltstack on Apple platforms, where backtrace() cannot handle it
191 # (rdar://7089625) and _Unwind_Backtrace is unusable because it cannot unwind
192 # past the signal handler after an assertion failure (rdar://29866587).
193 if( HAVE_SIGNAL_H AND NOT LLVM_USE_SANITIZER MATCHES ".*Address.*" AND NOT APPLE )
194 check_symbol_exists(sigaltstack signal.h HAVE_SIGALTSTACK)
196 set(CMAKE_REQUIRED_DEFINITIONS "-D_LARGEFILE64_SOURCE")
197 check_symbol_exists(lseek64 "sys/types.h;unistd.h" HAVE_LSEEK64)
198 set(CMAKE_REQUIRED_DEFINITIONS "")
199 check_symbol_exists(mallctl malloc_np.h HAVE_MALLCTL)
200 check_symbol_exists(mallinfo malloc.h HAVE_MALLINFO)
201 check_symbol_exists(malloc_zone_statistics malloc/malloc.h
202 HAVE_MALLOC_ZONE_STATISTICS)
203 check_symbol_exists(getrlimit "sys/types.h;sys/time.h;sys/resource.h" HAVE_GETRLIMIT)
204 check_symbol_exists(posix_spawn spawn.h HAVE_POSIX_SPAWN)
205 check_symbol_exists(pread unistd.h HAVE_PREAD)
206 check_symbol_exists(realpath stdlib.h HAVE_REALPATH)
207 check_symbol_exists(sbrk unistd.h HAVE_SBRK)
208 check_symbol_exists(strerror string.h HAVE_STRERROR)
209 check_symbol_exists(strerror_r string.h HAVE_STRERROR_R)
210 check_symbol_exists(strerror_s string.h HAVE_DECL_STRERROR_S)
211 check_symbol_exists(setenv stdlib.h HAVE_SETENV)
213 check_symbol_exists(_chsize_s io.h HAVE__CHSIZE_S)
215 check_function_exists(_alloca HAVE__ALLOCA)
216 check_function_exists(__alloca HAVE___ALLOCA)
217 check_function_exists(__chkstk HAVE___CHKSTK)
218 check_function_exists(__chkstk_ms HAVE___CHKSTK_MS)
219 check_function_exists(___chkstk HAVE____CHKSTK)
220 check_function_exists(___chkstk_ms HAVE____CHKSTK_MS)
222 check_function_exists(__ashldi3 HAVE___ASHLDI3)
223 check_function_exists(__ashrdi3 HAVE___ASHRDI3)
224 check_function_exists(__divdi3 HAVE___DIVDI3)
225 check_function_exists(__fixdfdi HAVE___FIXDFDI)
226 check_function_exists(__fixsfdi HAVE___FIXSFDI)
227 check_function_exists(__floatdidf HAVE___FLOATDIDF)
228 check_function_exists(__lshrdi3 HAVE___LSHRDI3)
229 check_function_exists(__moddi3 HAVE___MODDI3)
230 check_function_exists(__udivdi3 HAVE___UDIVDI3)
231 check_function_exists(__umoddi3 HAVE___UMODDI3)
233 check_function_exists(__main HAVE___MAIN)
234 check_function_exists(__cmpdi2 HAVE___CMPDI2)
238 list(APPEND CMAKE_REQUIRED_LIBRARIES dl)
240 check_symbol_exists(dlopen dlfcn.h HAVE_DLOPEN)
241 check_symbol_exists(dladdr dlfcn.h HAVE_DLADDR)
243 list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES dl)
247 check_symbol_exists(__GLIBC__ stdio.h LLVM_USING_GLIBC)
248 if( LLVM_USING_GLIBC )
249 add_definitions( -D_GNU_SOURCE )
250 list(APPEND CMAKE_REQUIRED_DEFINITIONS "-D_GNU_SOURCE")
252 # This check requires _GNU_SOURCE
253 check_symbol_exists(sched_getaffinity sched.h HAVE_SCHED_GETAFFINITY)
254 check_symbol_exists(CPU_COUNT sched.h HAVE_CPU_COUNT)
255 if (NOT PURE_WINDOWS)
256 if (LLVM_PTHREAD_LIB)
257 list(APPEND CMAKE_REQUIRED_LIBRARIES ${LLVM_PTHREAD_LIB})
259 check_symbol_exists(pthread_getname_np pthread.h HAVE_PTHREAD_GETNAME_NP)
260 check_symbol_exists(pthread_setname_np pthread.h HAVE_PTHREAD_SETNAME_NP)
261 if (LLVM_PTHREAD_LIB)
262 list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES ${LLVM_PTHREAD_LIB})
266 # available programs checks
267 function(llvm_find_program name)
268 string(TOUPPER ${name} NAME)
269 string(REGEX REPLACE "\\." "_" NAME ${NAME})
271 find_program(LLVM_PATH_${NAME} NAMES ${ARGV})
272 mark_as_advanced(LLVM_PATH_${NAME})
273 if(LLVM_PATH_${NAME})
274 set(HAVE_${NAME} 1 CACHE INTERNAL "Is ${name} available ?")
275 mark_as_advanced(HAVE_${NAME})
276 else(LLVM_PATH_${NAME})
277 set(HAVE_${NAME} "" CACHE INTERNAL "Is ${name} available ?")
278 endif(LLVM_PATH_${NAME})
281 if (LLVM_ENABLE_DOXYGEN)
282 llvm_find_program(dot)
285 if( LLVM_ENABLE_FFI )
286 find_path(FFI_INCLUDE_PATH ffi.h PATHS ${FFI_INCLUDE_DIR})
287 if( EXISTS "${FFI_INCLUDE_PATH}/ffi.h" )
288 set(FFI_HEADER ffi.h CACHE INTERNAL "")
289 set(HAVE_FFI_H 1 CACHE INTERNAL "")
291 find_path(FFI_INCLUDE_PATH ffi/ffi.h PATHS ${FFI_INCLUDE_DIR})
292 if( EXISTS "${FFI_INCLUDE_PATH}/ffi/ffi.h" )
293 set(FFI_HEADER ffi/ffi.h CACHE INTERNAL "")
294 set(HAVE_FFI_FFI_H 1 CACHE INTERNAL "")
299 message(FATAL_ERROR "libffi includes are not found.")
302 find_library(FFI_LIBRARY_PATH ffi PATHS ${FFI_LIBRARY_DIR})
303 if( NOT FFI_LIBRARY_PATH )
304 message(FATAL_ERROR "libffi is not found.")
307 list(APPEND CMAKE_REQUIRED_LIBRARIES ${FFI_LIBRARY_PATH})
308 list(APPEND CMAKE_REQUIRED_INCLUDES ${FFI_INCLUDE_PATH})
309 check_symbol_exists(ffi_call ${FFI_HEADER} HAVE_FFI_CALL)
310 list(REMOVE_ITEM CMAKE_REQUIRED_INCLUDES ${FFI_INCLUDE_PATH})
311 list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES ${FFI_LIBRARY_PATH})
313 unset(HAVE_FFI_FFI_H CACHE)
314 unset(HAVE_FFI_H CACHE)
315 unset(HAVE_FFI_CALL CACHE)
316 endif( LLVM_ENABLE_FFI )
318 # Define LLVM_HAS_ATOMICS if gcc or MSVC atomic builtins are supported.
321 if( LLVM_ENABLE_PIC )
325 check_cxx_compiler_flag("-fno-pie" SUPPORTS_NO_PIE_FLAG)
326 if(SUPPORTS_NO_PIE_FLAG)
327 set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fno-pie")
331 check_cxx_compiler_flag("-Wvariadic-macros" SUPPORTS_VARIADIC_MACROS_FLAG)
332 check_cxx_compiler_flag("-Wgnu-zero-variadic-macro-arguments"
333 SUPPORTS_GNU_ZERO_VARIADIC_MACRO_ARGUMENTS_FLAG)
335 set(USE_NO_MAYBE_UNINITIALIZED 0)
336 set(USE_NO_UNINITIALIZED 0)
338 # Disable gcc's potentially uninitialized use analysis as it presents lots of
340 if (CMAKE_COMPILER_IS_GNUCXX)
341 check_cxx_compiler_flag("-Wmaybe-uninitialized" HAS_MAYBE_UNINITIALIZED)
342 if (HAS_MAYBE_UNINITIALIZED)
343 set(USE_NO_MAYBE_UNINITIALIZED 1)
345 # Only recent versions of gcc make the distinction between -Wuninitialized
346 # and -Wmaybe-uninitialized. If -Wmaybe-uninitialized isn't supported, just
347 # turn off all uninitialized use warnings.
348 check_cxx_compiler_flag("-Wuninitialized" HAS_UNINITIALIZED)
349 set(USE_NO_UNINITIALIZED ${HAS_UNINITIALIZED})
353 # By default, we target the host, but this can be overridden at CMake
355 include(GetHostTriple)
356 get_host_triple(LLVM_INFERRED_HOST_TRIPLE)
358 set(LLVM_HOST_TRIPLE "${LLVM_INFERRED_HOST_TRIPLE}" CACHE STRING
359 "Host on which LLVM binaries will run")
361 # Determine the native architecture.
362 string(TOLOWER "${LLVM_TARGET_ARCH}" LLVM_NATIVE_ARCH)
363 if( LLVM_NATIVE_ARCH STREQUAL "host" )
364 string(REGEX MATCH "^[^-]*" LLVM_NATIVE_ARCH ${LLVM_HOST_TRIPLE})
367 if (LLVM_NATIVE_ARCH MATCHES "i[2-6]86")
368 set(LLVM_NATIVE_ARCH X86)
369 elseif (LLVM_NATIVE_ARCH STREQUAL "x86")
370 set(LLVM_NATIVE_ARCH X86)
371 elseif (LLVM_NATIVE_ARCH STREQUAL "amd64")
372 set(LLVM_NATIVE_ARCH X86)
373 elseif (LLVM_NATIVE_ARCH STREQUAL "x86_64")
374 set(LLVM_NATIVE_ARCH X86)
375 elseif (LLVM_NATIVE_ARCH MATCHES "sparc")
376 set(LLVM_NATIVE_ARCH Sparc)
377 elseif (LLVM_NATIVE_ARCH MATCHES "powerpc")
378 set(LLVM_NATIVE_ARCH PowerPC)
379 elseif (LLVM_NATIVE_ARCH MATCHES "aarch64")
380 set(LLVM_NATIVE_ARCH AArch64)
381 elseif (LLVM_NATIVE_ARCH MATCHES "arm64")
382 set(LLVM_NATIVE_ARCH AArch64)
383 elseif (LLVM_NATIVE_ARCH MATCHES "arm")
384 set(LLVM_NATIVE_ARCH ARM)
385 elseif (LLVM_NATIVE_ARCH MATCHES "mips")
386 set(LLVM_NATIVE_ARCH Mips)
387 elseif (LLVM_NATIVE_ARCH MATCHES "xcore")
388 set(LLVM_NATIVE_ARCH XCore)
389 elseif (LLVM_NATIVE_ARCH MATCHES "msp430")
390 set(LLVM_NATIVE_ARCH MSP430)
391 elseif (LLVM_NATIVE_ARCH MATCHES "hexagon")
392 set(LLVM_NATIVE_ARCH Hexagon)
393 elseif (LLVM_NATIVE_ARCH MATCHES "s390x")
394 set(LLVM_NATIVE_ARCH SystemZ)
395 elseif (LLVM_NATIVE_ARCH MATCHES "wasm32")
396 set(LLVM_NATIVE_ARCH WebAssembly)
397 elseif (LLVM_NATIVE_ARCH MATCHES "wasm64")
398 set(LLVM_NATIVE_ARCH WebAssembly)
399 elseif (LLVM_NATIVE_ARCH MATCHES "riscv32")
400 set(LLVM_NATIVE_ARCH RISCV)
401 elseif (LLVM_NATIVE_ARCH MATCHES "riscv64")
402 set(LLVM_NATIVE_ARCH RISCV)
404 message(FATAL_ERROR "Unknown architecture ${LLVM_NATIVE_ARCH}")
407 # If build targets includes "host", then replace with native architecture.
408 list(FIND LLVM_TARGETS_TO_BUILD "host" idx)
410 list(REMOVE_AT LLVM_TARGETS_TO_BUILD ${idx})
411 list(APPEND LLVM_TARGETS_TO_BUILD ${LLVM_NATIVE_ARCH})
412 list(REMOVE_DUPLICATES LLVM_TARGETS_TO_BUILD)
415 list(FIND LLVM_TARGETS_TO_BUILD ${LLVM_NATIVE_ARCH} NATIVE_ARCH_IDX)
416 if (NATIVE_ARCH_IDX EQUAL -1)
418 "Native target ${LLVM_NATIVE_ARCH} is not selected; lli will not JIT code")
420 message(STATUS "Native target architecture is ${LLVM_NATIVE_ARCH}")
421 set(LLVM_NATIVE_TARGET LLVMInitialize${LLVM_NATIVE_ARCH}Target)
422 set(LLVM_NATIVE_TARGETINFO LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo)
423 set(LLVM_NATIVE_TARGETMC LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC)
424 set(LLVM_NATIVE_ASMPRINTER LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter)
426 # We don't have an ASM parser for all architectures yet.
427 if (EXISTS ${PROJECT_SOURCE_DIR}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/CMakeLists.txt)
428 set(LLVM_NATIVE_ASMPARSER LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser)
431 # We don't have an disassembler for all architectures yet.
432 if (EXISTS ${PROJECT_SOURCE_DIR}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/CMakeLists.txt)
433 set(LLVM_NATIVE_DISASSEMBLER LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler)
439 set(stricmp "_stricmp")
440 set(strdup "_strdup")
442 # See if the DIA SDK is available and usable.
443 set(MSVC_DIA_SDK_DIR "$ENV{VSINSTALLDIR}DIA SDK")
445 # Due to a bug in MSVC 2013's installation software, it is possible
446 # for MSVC 2013 to write the DIA SDK into the Visual Studio 2012
447 # install directory. If this happens, the installation is corrupt
448 # and there's nothing we can do. It happens with enough frequency
449 # though that we should handle it. We do so by simply checking that
450 # the DIA SDK folder exists. Should this happen you will need to
451 # uninstall VS 2012 and then re-install VS 2013.
452 if (IS_DIRECTORY ${MSVC_DIA_SDK_DIR})
458 option(LLVM_ENABLE_DIA_SDK "Use MSVC DIA SDK for debugging if available."
461 if(LLVM_ENABLE_DIA_SDK AND NOT HAVE_DIA_SDK)
462 message(FATAL_ERROR "DIA SDK not found. If you have both VS 2012 and 2013 installed, you may need to uninstall the former and re-install the latter afterwards.")
465 set(LLVM_ENABLE_DIA_SDK 0)
468 # FIXME: Signal handler return type, currently hardcoded to 'void'
471 if( LLVM_ENABLE_THREADS )
472 # Check if threading primitives aren't supported on this platform
473 if( NOT HAVE_PTHREAD_H AND NOT WIN32 )
474 set(LLVM_ENABLE_THREADS 0)
478 if( LLVM_ENABLE_THREADS )
479 message(STATUS "Threads enabled.")
480 else( LLVM_ENABLE_THREADS )
481 message(STATUS "Threads disabled.")
484 if (LLVM_ENABLE_ZLIB )
485 # Check if zlib is available in the system.
486 if ( NOT HAVE_ZLIB_H OR NOT HAVE_LIBZ )
487 set(LLVM_ENABLE_ZLIB 0)
491 if (LLVM_ENABLE_DOXYGEN)
492 message(STATUS "Doxygen enabled.")
493 find_package(Doxygen REQUIRED)
496 # If we find doxygen and we want to enable doxygen by default create a
497 # global aggregate doxygen target for generating llvm and any/all
498 # subprojects doxygen documentation.
500 add_custom_target(doxygen ALL)
503 option(LLVM_DOXYGEN_EXTERNAL_SEARCH "Enable doxygen external search." OFF)
504 if (LLVM_DOXYGEN_EXTERNAL_SEARCH)
505 set(LLVM_DOXYGEN_SEARCHENGINE_URL "" CACHE STRING "URL to use for external search.")
506 set(LLVM_DOXYGEN_SEARCH_MAPPINGS "" CACHE STRING "Doxygen Search Mappings")
510 message(STATUS "Doxygen disabled.")
513 set(LLVM_BINDINGS "")
514 find_program(GO_EXECUTABLE NAMES go DOC "go executable")
515 if(WIN32 OR NOT LLVM_ENABLE_BINDINGS)
516 message(STATUS "Go bindings disabled.")
518 if(GO_EXECUTABLE STREQUAL "GO_EXECUTABLE-NOTFOUND")
519 message(STATUS "Go bindings disabled.")
521 execute_process(COMMAND ${GO_EXECUTABLE} run ${PROJECT_SOURCE_DIR}/bindings/go/conftest.go
522 RESULT_VARIABLE GO_CONFTEST)
523 if(GO_CONFTEST STREQUAL "0")
524 set(LLVM_BINDINGS "${LLVM_BINDINGS} go")
525 message(STATUS "Go bindings enabled.")
527 message(STATUS "Go bindings disabled, need at least Go 1.2.")
532 find_program(GOLD_EXECUTABLE NAMES ${LLVM_DEFAULT_TARGET_TRIPLE}-ld.gold ld.gold ${LLVM_DEFAULT_TARGET_TRIPLE}-ld ld DOC "The gold linker")
533 set(LLVM_BINUTILS_INCDIR "" CACHE PATH
534 "PATH to binutils/include containing plugin-api.h for gold plugin.")
536 if(CMAKE_HOST_APPLE AND APPLE)
538 find_program(CMAKE_XCRUN NAMES xcrun)
541 execute_process(COMMAND ${CMAKE_XCRUN} -find ld
542 OUTPUT_VARIABLE LD64_EXECUTABLE
543 OUTPUT_STRIP_TRAILING_WHITESPACE)
545 find_program(LD64_EXECUTABLE NAMES ld DOC "The ld64 linker")
549 set(LD64_EXECUTABLE ${LD64_EXECUTABLE} CACHE PATH "ld64 executable")
550 message(STATUS "Found ld64 - ${LD64_EXECUTABLE}")
554 # Keep the version requirements in sync with bindings/ocaml/README.txt.
557 if(WIN32 OR NOT LLVM_ENABLE_BINDINGS)
558 message(STATUS "OCaml bindings disabled.")
561 if( NOT OCAML_FOUND )
562 message(STATUS "OCaml bindings disabled.")
564 if( OCAML_VERSION VERSION_LESS "4.00.0" )
565 message(STATUS "OCaml bindings disabled, need OCaml >=4.00.0.")
567 find_ocamlfind_package(ctypes VERSION 0.4 OPTIONAL)
568 if( HAVE_OCAML_CTYPES )
569 message(STATUS "OCaml bindings enabled.")
570 find_ocamlfind_package(oUnit VERSION 2 OPTIONAL)
571 set(LLVM_BINDINGS "${LLVM_BINDINGS} ocaml")
573 set(LLVM_OCAML_INSTALL_PATH "${OCAML_STDLIB_PATH}" CACHE STRING
574 "Install directory for LLVM OCaml packages")
576 message(STATUS "OCaml bindings disabled, need ctypes >=0.4.")
582 string(REPLACE " " ";" LLVM_BINDINGS_LIST "${LLVM_BINDINGS}")
584 function(find_python_module module)
585 string(REPLACE "." "_" module_name ${module})
586 string(TOUPPER ${module_name} module_upper)
587 set(FOUND_VAR PY_${module_upper}_FOUND)
589 execute_process(COMMAND "${PYTHON_EXECUTABLE}" "-c" "import ${module}"
590 RESULT_VARIABLE status
594 set(${FOUND_VAR} 0 PARENT_SCOPE)
595 message(STATUS "Could NOT find Python module ${module}")
597 set(${FOUND_VAR} 1 PARENT_SCOPE)
598 message(STATUS "Found Python module ${module}")
604 # Some systems still don't have pygments.lexers.c_cpp which was introduced in
605 # version 2.0 in 2014...
606 pygments.lexers.c_cpp
609 foreach(module ${PYTHON_MODULES})
610 find_python_module(${module})
613 if(PY_PYGMENTS_FOUND AND PY_PYGMENTS_LEXERS_C_CPP_FOUND AND PY_YAML_FOUND)
614 set (LLVM_HAVE_OPT_VIEWER_MODULES 1)
616 set (LLVM_HAVE_OPT_VIEWER_MODULES 0)