1 cmake_minimum_required(VERSION 2.8.8)
3 # FIXME: It may be removed when we use 2.8.12.
4 if(CMAKE_VERSION VERSION_LESS 2.8.12)
5 # Invalidate a couple of keywords.
6 set(cmake_2_8_12_INTERFACE)
7 set(cmake_2_8_12_PRIVATE)
9 # Use ${cmake_2_8_12_KEYWORD} intead of KEYWORD in target_link_libraries().
10 set(cmake_2_8_12_INTERFACE INTERFACE)
11 set(cmake_2_8_12_PRIVATE PRIVATE)
13 cmake_policy(SET CMP0022 NEW) # automatic when 2.8.12 is required
17 # If we are not building as a part of LLVM, build Clang as an
18 # standalone project, using LLVM as an external library:
19 if( CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR )
22 # Rely on llvm-config.
24 find_program(LLVM_CONFIG "llvm-config")
26 message(STATUS "Found LLVM_CONFIG as ${LLVM_CONFIG}")
27 set(CONFIG_COMMAND ${LLVM_CONFIG}
35 COMMAND ${CONFIG_COMMAND}
36 RESULT_VARIABLE HAD_ERROR
37 OUTPUT_VARIABLE CONFIG_OUTPUT
41 "[ \t]*[\r\n]+[ \t]*" ";"
42 CONFIG_OUTPUT ${CONFIG_OUTPUT})
44 string(REPLACE ";" " " CONFIG_COMMAND_STR "${CONFIG_COMMAND}")
45 message(STATUS "${CONFIG_COMMAND_STR}")
46 message(FATAL_ERROR "llvm-config failed with status ${HAD_ERROR}")
49 message(FATAL_ERROR "llvm-config not found -- ${LLVM_CONFIG}")
52 list(GET CONFIG_OUTPUT 0 ENABLE_ASSERTIONS)
53 list(GET CONFIG_OUTPUT 1 TOOLS_BINARY_DIR)
54 list(GET CONFIG_OUTPUT 2 LIBRARY_DIR)
55 list(GET CONFIG_OUTPUT 3 INCLUDE_DIR)
56 list(GET CONFIG_OUTPUT 4 LLVM_OBJ_ROOT)
57 list(GET CONFIG_OUTPUT 5 MAIN_SRC_DIR)
60 set(LLVM_ENABLE_ASSERTIONS ${ENABLE_ASSERTIONS}
61 CACHE BOOL "Enable assertions")
62 # Assertions should follow llvm-config's.
63 mark_as_advanced(LLVM_ENABLE_ASSERTIONS)
66 set(LLVM_TOOLS_BINARY_DIR ${TOOLS_BINARY_DIR} CACHE PATH "Path to llvm/bin")
67 set(LLVM_LIBRARY_DIR ${LIBRARY_DIR} CACHE PATH "Path to llvm/lib")
68 set(LLVM_MAIN_INCLUDE_DIR ${INCLUDE_DIR} CACHE PATH "Path to llvm/include")
69 set(LLVM_BINARY_DIR ${LLVM_OBJ_ROOT} CACHE PATH "Path to LLVM build tree")
70 set(LLVM_MAIN_SRC_DIR ${MAIN_SRC_DIR} CACHE PATH "Path to LLVM source tree")
72 find_program(LLVM_TABLEGEN_EXE "llvm-tblgen" ${LLVM_TOOLS_BINARY_DIR}
75 set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR}/share/llvm/cmake")
76 set(LLVMCONFIG_FILE "${LLVM_CMAKE_PATH}/LLVMConfig.cmake")
77 if(EXISTS ${LLVMCONFIG_FILE})
78 list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}")
79 include(${LLVMCONFIG_FILE})
81 message(FATAL_ERROR "Not found: ${LLVMCONFIG_FILE}")
84 # They are used as destination of target generators.
85 set(LLVM_RUNTIME_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/bin)
86 set(LLVM_LIBRARY_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib${LLVM_LIBDIR_SUFFIX})
88 # DLL platform -- put DLLs into bin.
89 set(LLVM_SHLIB_OUTPUT_INTDIR ${LLVM_RUNTIME_OUTPUT_INTDIR})
91 set(LLVM_SHLIB_OUTPUT_INTDIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
94 option(LLVM_INSTALL_TOOLCHAIN_ONLY
95 "Only include toolchain files in the 'install' target." OFF)
97 option(LLVM_FORCE_USE_OLD_HOST_TOOLCHAIN
98 "Set to ON to force using an old, unsupported host toolchain." OFF)
99 option(CLANG_ENABLE_BOOTSTRAP "Generate the clang bootstrap target" OFF)
103 include(HandleLLVMOptions)
105 set(PACKAGE_VERSION "${LLVM_PACKAGE_VERSION}")
107 if (NOT DEFINED LLVM_INCLUDE_TESTS)
108 set(LLVM_INCLUDE_TESTS ON)
111 include_directories("${LLVM_BINARY_DIR}/include" "${LLVM_MAIN_INCLUDE_DIR}")
112 link_directories("${LLVM_LIBRARY_DIR}")
114 set( CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin )
115 set( CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX} )
116 set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX} )
118 if(LLVM_INCLUDE_TESTS)
119 set(Python_ADDITIONAL_VERSIONS 2.7)
120 include(FindPythonInterp)
121 if(NOT PYTHONINTERP_FOUND)
123 "Unable to find Python interpreter, required for builds and testing.
125 Please install Python or specify the PYTHON_EXECUTABLE CMake variable.")
128 if( ${PYTHON_VERSION_STRING} VERSION_LESS 2.7 )
129 message(FATAL_ERROR "Python 2.7 or newer is required")
132 # Check prebuilt llvm/utils.
133 if(EXISTS ${LLVM_TOOLS_BINARY_DIR}/FileCheck${CMAKE_EXECUTABLE_SUFFIX}
134 AND EXISTS ${LLVM_TOOLS_BINARY_DIR}/count${CMAKE_EXECUTABLE_SUFFIX}
135 AND EXISTS ${LLVM_TOOLS_BINARY_DIR}/not${CMAKE_EXECUTABLE_SUFFIX})
136 set(LLVM_UTILS_PROVIDED ON)
139 if(EXISTS ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py)
140 set(LLVM_LIT ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py)
141 if(NOT LLVM_UTILS_PROVIDED)
142 add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/FileCheck utils/FileCheck)
143 add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/count utils/count)
144 add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/not utils/not)
145 set(LLVM_UTILS_PROVIDED ON)
146 set(CLANG_TEST_DEPS FileCheck count not)
148 set(UNITTEST_DIR ${LLVM_MAIN_SRC_DIR}/utils/unittest)
149 if(EXISTS ${UNITTEST_DIR}/googletest/include/gtest/gtest.h
150 AND NOT EXISTS ${LLVM_LIBRARY_DIR}/${CMAKE_STATIC_LIBRARY_PREFIX}gtest${CMAKE_STATIC_LIBRARY_SUFFIX}
151 AND EXISTS ${UNITTEST_DIR}/CMakeLists.txt)
152 add_subdirectory(${UNITTEST_DIR} utils/unittest)
155 # Seek installed Lit.
156 find_program(LLVM_LIT "lit.py" ${LLVM_MAIN_SRC_DIR}/utils/lit
157 DOC "Path to lit.py")
161 # Define the default arguments to use with 'lit', and an option for the user
163 set(LIT_ARGS_DEFAULT "-sv")
165 set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar")
167 set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default options for lit")
169 # On Win32 hosts, provide an option to specify the path to the GnuWin32 tools.
170 if( WIN32 AND NOT CYGWIN )
171 set(LLVM_LIT_TOOLS_DIR "" CACHE PATH "Path to GnuWin32 tools")
174 set(LLVM_INCLUDE_TESTS OFF)
178 set( CLANG_BUILT_STANDALONE 1 )
179 set(BACKEND_PACKAGE_STRING "LLVM ${LLVM_PACKAGE_VERSION}")
181 set(BACKEND_PACKAGE_STRING "${PACKAGE_STRING}")
184 find_package(LibXml2 2.5.3 QUIET)
186 set(CLANG_HAVE_LIBXML 1)
189 set(CLANG_RESOURCE_DIR "" CACHE STRING
190 "Relative directory from the Clang binary to its resource files.")
192 set(C_INCLUDE_DIRS "" CACHE STRING
193 "Colon separated list of directories clang will search for headers.")
195 set(GCC_INSTALL_PREFIX "" CACHE PATH "Directory where gcc is installed." )
196 set(DEFAULT_SYSROOT "" CACHE PATH
197 "Default <path> to all compiler invocations for --sysroot=<path>." )
199 set(CLANG_DEFAULT_OPENMP_RUNTIME "libgomp" CACHE STRING
200 "Default OpenMP runtime used by -fopenmp.")
202 set(CLANG_VENDOR "" CACHE STRING
203 "Vendor-specific text for showing with version information.")
206 add_definitions( -DCLANG_VENDOR="${CLANG_VENDOR} " )
209 set(CLANG_REPOSITORY_STRING "" CACHE STRING
210 "Vendor-specific text for showing the repository the source is taken from.")
212 if(CLANG_REPOSITORY_STRING)
213 add_definitions(-DCLANG_REPOSITORY_STRING="${CLANG_REPOSITORY_STRING}")
216 set(CLANG_VENDOR_UTI "org.llvm.clang" CACHE STRING
217 "Vendor-specific uti.")
219 # The libdir suffix must exactly match whatever LLVM's configuration used.
220 set(CLANG_LIBDIR_SUFFIX "${LLVM_LIBDIR_SUFFIX}")
222 set(CLANG_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
223 set(CLANG_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
225 if( CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR AND NOT MSVC_IDE )
226 message(FATAL_ERROR "In-source builds are not allowed. CMake would overwrite "
227 "the makefiles distributed with LLVM. Please create a directory and run cmake "
228 "from there, passing the path to this source directory as the last argument. "
229 "This process created the file `CMakeCache.txt' and the directory "
230 "`CMakeFiles'. Please delete them.")
233 if( NOT CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR )
235 tablegenned_files_on_include_dir
236 "${CLANG_SOURCE_DIR}/include/clang/*.inc")
237 if( tablegenned_files_on_include_dir )
238 message(FATAL_ERROR "Apparently there is a previous in-source build, "
239 "probably as the result of running `configure' and `make' on "
240 "${CLANG_SOURCE_DIR}. This may cause problems. The suspicious files are:\n"
241 "${tablegenned_files_on_include_dir}\nPlease clean the source directory.")
245 # Compute the Clang version from the LLVM version.
246 string(REGEX MATCH "[0-9]+\\.[0-9]+(\\.[0-9]+)?" CLANG_VERSION
248 message(STATUS "Clang version: ${CLANG_VERSION}")
250 string(REGEX REPLACE "([0-9]+)\\.[0-9]+(\\.[0-9]+)?" "\\1" CLANG_VERSION_MAJOR
252 string(REGEX REPLACE "[0-9]+\\.([0-9]+)(\\.[0-9]+)?" "\\1" CLANG_VERSION_MINOR
254 if (${CLANG_VERSION} MATCHES "[0-9]+\\.[0-9]+\\.[0-9]+")
255 set(CLANG_HAS_VERSION_PATCHLEVEL 1)
256 string(REGEX REPLACE "[0-9]+\\.[0-9]+\\.([0-9]+)" "\\1" CLANG_VERSION_PATCHLEVEL
259 set(CLANG_HAS_VERSION_PATCHLEVEL 0)
262 # Configure the Version.inc file.
264 ${CMAKE_CURRENT_SOURCE_DIR}/include/clang/Basic/Version.inc.in
265 ${CMAKE_CURRENT_BINARY_DIR}/include/clang/Basic/Version.inc)
267 # Add appropriate flags for GCC
268 if (LLVM_COMPILER_IS_GCC_COMPATIBLE)
269 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-common -Woverloaded-virtual")
270 if (NOT "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
271 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-strict-aliasing")
274 # Enable -pedantic for Clang even if it's not enabled for LLVM.
275 if (NOT LLVM_ENABLE_PEDANTIC)
276 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pedantic -Wno-long-long")
279 check_cxx_compiler_flag("-Werror -Wnested-anon-types" CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG)
280 if( CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG )
281 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-nested-anon-types" )
285 # Determine HOST_LINK_VERSION on Darwin.
286 set(HOST_LINK_VERSION)
290 COMMAND sh -c "${CMAKE_LINKER} -v 2>&1 | head -1"
291 RESULT_VARIABLE HAD_ERROR
292 OUTPUT_VARIABLE LD_V_OUTPUT
295 if ("${LD_V_OUTPUT}" MATCHES ".*ld64-([0-9.]+).*")
296 string(REGEX REPLACE ".*ld64-([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
297 elseif ("${LD_V_OUTPUT}" MATCHES "[^0-9]*([0-9.]+).*")
298 string(REGEX REPLACE "[^0-9]*([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
301 message(FATAL_ERROR "${CMAKE_LINKER} failed with status ${HAD_ERROR}")
306 ${CLANG_SOURCE_DIR}/include/clang/Config/config.h.cmake
307 ${CLANG_BINARY_DIR}/include/clang/Config/config.h)
309 include(CMakeParseArguments)
311 function(clang_tablegen)
313 # clang_tablegen output-file [tablegen-arg ...] SOURCE source-file
314 # [[TARGET cmake-target-name] [DEPENDS extra-dependency ...]]
316 # Generates a custom command for invoking tblgen as
318 # tblgen source-file -o=output-file tablegen-arg ...
320 # and, if cmake-target-name is provided, creates a custom target for
321 # executing the custom command depending on output-file. It is
322 # possible to list more files to depend after DEPENDS.
324 cmake_parse_arguments(CTG "" "SOURCE;TARGET" "" ${ARGN})
327 message(FATAL_ERROR "SOURCE source-file required by clang_tablegen")
330 set( LLVM_TARGET_DEFINITIONS ${CTG_SOURCE} )
331 tablegen(CLANG ${CTG_UNPARSED_ARGUMENTS})
334 add_public_tablegen_target(${CTG_TARGET})
335 set_target_properties( ${CTG_TARGET} PROPERTIES FOLDER "Clang tablegenning")
336 set_property(GLOBAL APPEND PROPERTY CLANG_TABLEGEN_TARGETS ${CTG_TARGET})
338 endfunction(clang_tablegen)
340 macro(set_clang_windows_version_resource_properties name)
341 if(DEFINED windows_resource_file)
342 set_windows_version_resource_properties(${name} ${windows_resource_file}
343 VERSION_MAJOR ${CLANG_VERSION_MAJOR}
344 VERSION_MINOR ${CLANG_VERSION_MINOR}
345 VERSION_PATCHLEVEL ${CLANG_VERSION_PATCHLEVEL}
346 VERSION_STRING "${CLANG_VERSION} (${BACKEND_PACKAGE_STRING})"
347 PRODUCT_NAME "clang")
351 macro(add_clang_subdirectory name)
352 add_llvm_subdirectory(CLANG TOOL ${name})
355 macro(add_clang_library name)
356 cmake_parse_arguments(ARG
362 if(MSVC_IDE OR XCODE)
364 file(RELATIVE_PATH lib_path
365 ${CLANG_SOURCE_DIR}/lib/
366 ${CMAKE_CURRENT_SOURCE_DIR}
368 if(NOT lib_path MATCHES "^[.][.]")
369 file( GLOB_RECURSE headers
370 ${CLANG_SOURCE_DIR}/include/clang/${lib_path}/*.h
371 ${CLANG_SOURCE_DIR}/include/clang/${lib_path}/*.def
373 set_source_files_properties(${headers} PROPERTIES HEADER_FILE_ONLY ON)
375 file( GLOB_RECURSE tds
376 ${CLANG_SOURCE_DIR}/include/clang/${lib_path}/*.td
378 source_group("TableGen descriptions" FILES ${tds})
379 set_source_files_properties(${tds}} PROPERTIES HEADER_FILE_ONLY ON)
382 set(srcs ${headers} ${tds})
385 endif(MSVC_IDE OR XCODE)
386 if(srcs OR ARG_ADDITIONAL_HEADERS)
390 ${ARG_ADDITIONAL_HEADERS} # It may contain unparsed unknown args.
393 llvm_add_library(${name} ${ARG_UNPARSED_ARGUMENTS} ${srcs})
396 target_link_libraries(${name} ${cmake_2_8_12_INTERFACE} ${LLVM_COMMON_LIBS})
398 if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY OR ${name} STREQUAL "libclang")
399 install(TARGETS ${name}
401 LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX}
402 ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX}
403 RUNTIME DESTINATION bin)
405 set_property(GLOBAL APPEND PROPERTY CLANG_EXPORTS ${name})
407 # Add empty "phony" target
408 add_custom_target(${name})
411 set_target_properties(${name} PROPERTIES FOLDER "Clang libraries")
412 set_clang_windows_version_resource_properties(${name})
413 endmacro(add_clang_library)
415 macro(add_clang_executable name)
416 add_llvm_executable( ${name} ${ARGN} )
417 set_target_properties(${name} PROPERTIES FOLDER "Clang executables")
418 set_clang_windows_version_resource_properties(${name})
419 endmacro(add_clang_executable)
421 macro(add_clang_symlink name dest)
422 add_llvm_tool_symlink(${name} ${dest} ALWAYS_GENERATE)
423 # Always generate install targets
424 llvm_install_symlink(${name} ${dest} ALWAYS_GENERATE)
427 set(CMAKE_INCLUDE_CURRENT_DIR ON)
429 include_directories(BEFORE
430 ${CMAKE_CURRENT_BINARY_DIR}/include
431 ${CMAKE_CURRENT_SOURCE_DIR}/include
434 if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
435 install(DIRECTORY include/clang include/clang-c
440 PATTERN "config.h" EXCLUDE
441 PATTERN ".svn" EXCLUDE
444 install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/include/clang
447 PATTERN "CMakeFiles" EXCLUDE
453 install(DIRECTORY include/clang-c
457 PATTERN ".svn" EXCLUDE
460 add_definitions( -D_GNU_SOURCE )
462 option(CLANG_ENABLE_ARCMT "Build ARCMT." ON)
463 if (CLANG_ENABLE_ARCMT)
464 set(ENABLE_CLANG_ARCMT "1")
466 set(ENABLE_CLANG_ARCMT "0")
469 option(CLANG_ENABLE_STATIC_ANALYZER "Build static analyzer." ON)
470 if (CLANG_ENABLE_STATIC_ANALYZER)
471 set(ENABLE_CLANG_STATIC_ANALYZER "1")
473 set(ENABLE_CLANG_STATIC_ANALYZER "0")
476 if (NOT CLANG_ENABLE_STATIC_ANALYZER AND CLANG_ENABLE_ARCMT)
477 message(FATAL_ERROR "Cannot disable static analyzer while enabling ARCMT")
480 if(CLANG_ENABLE_ARCMT)
481 add_definitions(-DCLANG_ENABLE_ARCMT)
482 add_definitions(-DCLANG_ENABLE_OBJC_REWRITER)
484 if(CLANG_ENABLE_STATIC_ANALYZER)
485 add_definitions(-DCLANG_ENABLE_STATIC_ANALYZER)
488 # Clang version information
489 set(CLANG_EXECUTABLE_VERSION
490 "${CLANG_VERSION_MAJOR}.${CLANG_VERSION_MINOR}" CACHE STRING
491 "Version number that will be placed into the clang executable, in the form XX.YY")
492 set(LIBCLANG_LIBRARY_VERSION
493 "${CLANG_VERSION_MAJOR}.${CLANG_VERSION_MINOR}" CACHE STRING
494 "Version number that will be placed into the libclang library , in the form XX.YY")
495 mark_as_advanced(CLANG_EXECUTABLE_VERSION LIBCLANG_LIBRARY_VERSION)
497 option(CLANG_INCLUDE_TESTS
498 "Generate build targets for the Clang unit tests."
499 ${LLVM_INCLUDE_TESTS})
501 add_subdirectory(utils/TableGen)
503 add_subdirectory(include)
505 # All targets below may depend on all tablegen'd files.
506 get_property(CLANG_TABLEGEN_TARGETS GLOBAL PROPERTY CLANG_TABLEGEN_TARGETS)
507 list(APPEND LLVM_COMMON_DEPENDS ${CLANG_TABLEGEN_TARGETS})
509 add_subdirectory(lib)
510 add_subdirectory(tools)
511 add_subdirectory(runtime)
513 option(CLANG_BUILD_EXAMPLES "Build CLANG example programs by default." OFF)
514 if (CLANG_BUILD_EXAMPLES)
515 set(ENABLE_CLANG_EXAMPLES "1")
517 set(ENABLE_CLANG_EXAMPLES "0")
519 add_subdirectory(examples)
521 if( CLANG_INCLUDE_TESTS )
522 if(EXISTS ${LLVM_MAIN_SRC_DIR}/utils/unittest/googletest/include/gtest/gtest.h)
523 add_subdirectory(unittests)
524 list(APPEND CLANG_TEST_DEPS ClangUnitTests)
525 list(APPEND CLANG_TEST_PARAMS
526 clang_unit_site_config=${CMAKE_CURRENT_BINARY_DIR}/test/Unit/lit.site.cfg
529 add_subdirectory(test)
531 if(CLANG_BUILT_STANDALONE)
532 # Add a global check rule now that all subdirectories have been traversed
533 # and we know the total set of lit testsuites.
534 get_property(LLVM_LIT_TESTSUITES GLOBAL PROPERTY LLVM_LIT_TESTSUITES)
535 get_property(LLVM_LIT_PARAMS GLOBAL PROPERTY LLVM_LIT_PARAMS)
536 get_property(LLVM_LIT_DEPENDS GLOBAL PROPERTY LLVM_LIT_DEPENDS)
537 get_property(LLVM_LIT_EXTRA_ARGS GLOBAL PROPERTY LLVM_LIT_EXTRA_ARGS)
538 add_lit_target(check-all
539 "Running all regression tests"
540 ${LLVM_LIT_TESTSUITES}
541 PARAMS ${LLVM_LIT_PARAMS}
542 DEPENDS ${LLVM_LIT_DEPENDS}
543 ARGS ${LLVM_LIT_EXTRA_ARGS}
548 option(CLANG_INCLUDE_DOCS "Generate build targets for the Clang docs."
549 ${LLVM_INCLUDE_DOCS})
550 if( CLANG_INCLUDE_DOCS )
551 add_subdirectory(docs)
554 set(CLANG_ORDER_FILE "" CACHE FILEPATH
555 "Order file to use when compiling clang in order to improve startup time.")
557 if (CLANG_BUILT_STANDALONE OR CMAKE_VERSION VERSION_EQUAL 3 OR
558 CMAKE_VERSION VERSION_GREATER 3)
559 # Generate a list of CMake library targets so that other CMake projects can
560 # link against them. LLVM calls its version of this file LLVMExports.cmake, but
561 # the usual CMake convention seems to be ${Project}Targets.cmake.
562 set(CLANG_INSTALL_PACKAGE_DIR share/clang/cmake)
563 set(clang_cmake_builddir "${CMAKE_BINARY_DIR}/${CLANG_INSTALL_PACKAGE_DIR}")
564 get_property(CLANG_EXPORTS GLOBAL PROPERTY CLANG_EXPORTS)
565 export(TARGETS ${CLANG_EXPORTS} FILE ${clang_cmake_builddir}/ClangTargets.cmake)
567 # Install a <prefix>/share/clang/cmake/ClangConfig.cmake file so that
568 # find_package(Clang) works. Install the target list with it.
569 install(EXPORT ClangTargets DESTINATION ${CLANG_INSTALL_PACKAGE_DIR})
572 ${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules/ClangConfig.cmake
573 DESTINATION share/clang/cmake)
575 # Also copy ClangConfig.cmake to the build directory so that dependent projects
576 # can build against a build directory of Clang more easily.
578 ${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules/ClangConfig.cmake
579 ${CLANG_BINARY_DIR}/share/clang/cmake/ClangConfig.cmake
583 if (CLANG_ENABLE_BOOTSTRAP)
584 include(ExternalProject)
586 if(CMAKE_VERSION VERSION_GREATER 3.1.0)
587 set(cmake_3_1_EXCLUDE_FROM_ALL EXCLUDE_FROM_ALL 1)
590 if(CMAKE_VERSION VERSION_GREATER 3.3.20150708)
591 set(cmake_3_4_USES_TERMINAL_OPTIONS
592 USES_TERMINAL_CONFIGURE 1
593 USES_TERMINAL_BUILD 1
594 USES_TERMINAL_INSTALL 1
596 set(cmake_3_4_USES_TERMINAL USES_TERMINAL 1)
599 set(STAMP_DIR ${CMAKE_CURRENT_BINARY_DIR}/bootstrap-stamps/)
600 set(BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/bootstrap-bins/)
602 # If on Darwin we need to make bootstrap depend on LTO and pass
603 # DARWIN_LTO_LIBRARY so that -flto will work using the just-built compiler
605 set(LTO_DEP LTO llvm-ar llvm-ranlib)
606 set(LTO_LIBRARY -DDARWIN_LTO_LIBRARY=${LLVM_SHLIB_OUTPUT_INTDIR}/libLTO.dylib)
607 set(LTO_AR -DCMAKE_AR=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-ar)
608 set(LTO_RANLIB -DCMAKE_RANLIB=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-ranlib)
611 add_custom_target(bootstrap-clear
612 DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/bootstrap-cleared
615 OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/bootstrap-cleared
616 DEPENDS clang ${LTO_DEP}
617 COMMAND ${CMAKE_COMMAND} -E remove_directory ${BINARY_DIR}
618 COMMAND ${CMAKE_COMMAND} -E make_directory ${BINARY_DIR}
619 COMMAND ${CMAKE_COMMAND} -E remove_directory ${STAMP_DIR}
620 COMMAND ${CMAKE_COMMAND} -E make_directory ${STAMP_DIR}
621 COMMENT "Clobberring bootstrap build and stamp directories"
624 ExternalProject_Add(bootstrap
625 DEPENDS clang ${LTO_DEP}
627 SOURCE_DIR ${CMAKE_SOURCE_DIR}
628 STAMP_DIR ${STAMP_DIR}
629 BINARY_DIR ${BINARY_DIR}
630 ${cmake_3_1_EXCLUDE_FROM_ALL}
632 # We shouldn't need to set this here, but INSTALL_DIR doesn't
633 # seem to work, so instead I'm passing this through
634 -DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX}
635 ${CLANG_BOOTSTRAP_CMAKE_ARGS}
636 -DCMAKE_CXX_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/clang++
637 -DCMAKE_C_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/clang
638 -DCMAKE_ASM_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/clang
639 ${LTO_LIBRARY} ${LTO_AR} ${LTO_RANLIB}
641 STEP_TARGETS configure build
642 ${cmake_3_4_USES_TERMINAL_OPTIONS}
645 # exclude really-install from main target
646 set_target_properties(bootstrap PROPERTIES _EP_really-install_EXCLUDE_FROM_MAIN On)
647 ExternalProject_Add_Step(bootstrap really-install
648 COMMAND ${CMAKE_COMMAND} --build <BINARY_DIR> --target install
649 COMMENT "Performing install step for 'bootstrap'"
651 ${cmake_3_4_USES_TERMINAL}
653 ExternalProject_Add_StepTargets(bootstrap really-install)
654 add_custom_target(bootstrap-install DEPENDS bootstrap-really-install)
657 set(ADDITIONAL_TARGETS_TO_ADD check-llvm check-clang check-all)
658 foreach(target ${ADDITIONAL_TARGETS_TO_ADD})
659 # exclude from main target
660 set_target_properties(bootstrap PROPERTIES _EP_${target}_EXCLUDE_FROM_MAIN On)
662 ExternalProject_Add_Step(bootstrap ${target}
663 COMMAND ${CMAKE_COMMAND} --build <BINARY_DIR> --target ${target}
664 COMMENT "Performing ${target} for 'bootstrap'"
666 ${cmake_3_4_USES_TERMINAL}
668 ExternalProject_Add_StepTargets(bootstrap ${target})