cmake_minimum_required(VERSION 2.8.8)

if(CMAKE_VERSION VERSION_LESS 2.8.12)

# Invalidate a couple of keywords.

set(cmake_2_8_12_INTERFACE)

set(cmake_2_8_12_PRIVATE)

else()

# Use ${cmake_2_8_12_KEYWORD} intead of KEYWORD in target_link_libraries().

set(cmake_2_8_12_INTERFACE INTERFACE)

set(cmake_2_8_12_PRIVATE PRIVATE)

if(POLICY CMP0022)

cmake_policy(SET CMP0022 NEW) # automatic when 2.8.12 is required

endif()

endif()

if( CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR )

project(Clang)

# Rely on llvm-config.

set(CONFIG_OUTPUT)

find_program(LLVM_CONFIG "llvm-config")

if(LLVM_CONFIG)

message(STATUS "Found LLVM_CONFIG as ${LLVM_CONFIG}")

set(CONFIG_COMMAND ${LLVM_CONFIG}

"--assertion-mode"

"--bindir"

"--libdir"

"--includedir"

"--prefix"

"--src-root")

execute_process(

COMMAND ${CONFIG_COMMAND}

RESULT_VARIABLE HAD_ERROR

OUTPUT_VARIABLE CONFIG_OUTPUT

)

if(NOT HAD_ERROR)

string(REGEX REPLACE

"[ \t]*[\r\n]+[ \t]*" ";"

CONFIG_OUTPUT ${CONFIG_OUTPUT})

else()

string(REPLACE ";" " " CONFIG_COMMAND_STR "${CONFIG_COMMAND}")

message(STATUS "${CONFIG_COMMAND_STR}")

message(FATAL_ERROR "llvm-config failed with status ${HAD_ERROR}")

endif()

else()

message(FATAL_ERROR "llvm-config not found -- ${LLVM_CONFIG}")

endif()

list(GET CONFIG_OUTPUT 0 ENABLE_ASSERTIONS)

list(GET CONFIG_OUTPUT 1 TOOLS_BINARY_DIR)

list(GET CONFIG_OUTPUT 2 LIBRARY_DIR)

list(GET CONFIG_OUTPUT 3 INCLUDE_DIR)

list(GET CONFIG_OUTPUT 4 LLVM_OBJ_ROOT)

list(GET CONFIG_OUTPUT 5 MAIN_SRC_DIR)

if(NOT MSVC_IDE)

set(LLVM_ENABLE_ASSERTIONS ${ENABLE_ASSERTIONS}

CACHE BOOL "Enable assertions")

# Assertions should follow llvm-config's.

mark_as_advanced(LLVM_ENABLE_ASSERTIONS)

endif()

set(LLVM_TOOLS_BINARY_DIR ${TOOLS_BINARY_DIR} CACHE PATH "Path to llvm/bin")

set(LLVM_LIBRARY_DIR ${LIBRARY_DIR} CACHE PATH "Path to llvm/lib")

set(LLVM_MAIN_INCLUDE_DIR ${INCLUDE_DIR} CACHE PATH "Path to llvm/include")

set(LLVM_BINARY_DIR ${LLVM_OBJ_ROOT} CACHE PATH "Path to LLVM build tree")

set(LLVM_MAIN_SRC_DIR ${MAIN_SRC_DIR} CACHE PATH "Path to LLVM source tree")

find_program(LLVM_TABLEGEN_EXE "llvm-tblgen" ${LLVM_TOOLS_BINARY_DIR}

NO_DEFAULT_PATH)

set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR}/share/llvm/cmake")

set(LLVMCONFIG_FILE "${LLVM_CMAKE_PATH}/LLVMConfig.cmake")

if(EXISTS ${LLVMCONFIG_FILE})

list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}")

include(${LLVMCONFIG_FILE})

else()

message(FATAL_ERROR "Not found: ${LLVMCONFIG_FILE}")

endif()

# They are used as destination of target generators.

set(LLVM_RUNTIME_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/bin)

set(LLVM_LIBRARY_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib)

option(LLVM_INSTALL_TOOLCHAIN_ONLY

"Only include toolchain files in the 'install' target." OFF)

option(LLVM_FORCE_USE_OLD_HOST_TOOLCHAIN

"Set to ON to force using an old, unsupported host toolchain." OFF)

include(AddLLVM)

include(TableGen)

include(HandleLLVMOptions)

set(PACKAGE_VERSION "${LLVM_PACKAGE_VERSION}")

if (NOT DEFINED LLVM_INCLUDE_TESTS)

set(LLVM_INCLUDE_TESTS ON)

endif()

include_directories("${LLVM_BINARY_DIR}/include" "${LLVM_MAIN_INCLUDE_DIR}")

link_directories("${LLVM_LIBRARY_DIR}")

set( CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin )

set( CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib )

set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib )

if(LLVM_INCLUDE_TESTS)

# Check prebuilt llvm/utils.

if(EXISTS ${LLVM_TOOLS_BINARY_DIR}/FileCheck${CMAKE_EXECUTABLE_SUFFIX}

AND EXISTS ${LLVM_TOOLS_BINARY_DIR}/count${CMAKE_EXECUTABLE_SUFFIX}

AND EXISTS ${LLVM_TOOLS_BINARY_DIR}/not${CMAKE_EXECUTABLE_SUFFIX})

set(LLVM_UTILS_PROVIDED ON)

endif()

if(EXISTS ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py)

set(LLVM_LIT ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py)

if(NOT LLVM_UTILS_PROVIDED)

add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/FileCheck utils/FileCheck)

add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/count utils/count)

add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/not utils/not)

set(LLVM_UTILS_PROVIDED ON)

set(CLANG_TEST_DEPS FileCheck count not)

endif()

set(UNITTEST_DIR ${LLVM_MAIN_SRC_DIR}/utils/unittest)

if(EXISTS ${UNITTEST_DIR}/googletest/include/gtest/gtest.h

AND NOT EXISTS ${LLVM_LIBRARY_DIR}/${CMAKE_STATIC_LIBRARY_PREFIX}gtest${CMAKE_STATIC_LIBRARY_SUFFIX}

AND EXISTS ${UNITTEST_DIR}/CMakeLists.txt)

add_subdirectory(${UNITTEST_DIR} utils/unittest)

endif()

else()

# Seek installed Lit.

find_program(LLVM_LIT "lit.py" ${LLVM_MAIN_SRC_DIR}/utils/lit

DOC "Path to lit.py")

endif()

if(LLVM_LIT)

# Define the default arguments to use with 'lit', and an option for the user

# to override.

set(LIT_ARGS_DEFAULT "-sv")

if (MSVC OR XCODE)

set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar")

endif()

set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default options for lit")

# On Win32 hosts, provide an option to specify the path to the GnuWin32 tools.

if( WIN32 AND NOT CYGWIN )

set(LLVM_LIT_TOOLS_DIR "" CACHE PATH "Path to GnuWin32 tools")

endif()

else()

set(LLVM_INCLUDE_TESTS OFF)

endif()

endif()

set( CLANG_BUILT_STANDALONE 1 )

set(BACKEND_PACKAGE_STRING "LLVM ${LLVM_PACKAGE_VERSION}")

else()

set(BACKEND_PACKAGE_STRING "${PACKAGE_STRING}")

endif()

find_package(LibXml2)

if (LIBXML2_FOUND)

set(CLANG_HAVE_LIBXML 1)

endif()

set(CLANG_RESOURCE_DIR "" CACHE STRING

"Relative directory from the Clang binary to its resource files.")

set(C_INCLUDE_DIRS "" CACHE STRING

"Colon separated list of directories clang will search for headers.")

set(GCC_INSTALL_PREFIX "" CACHE PATH "Directory where gcc is installed." )

set(DEFAULT_SYSROOT "" CACHE PATH

"Default <path> to all compiler invocations for --sysroot=<path>." )

set(CLANG_VENDOR "" CACHE STRING

"Vendor-specific text for showing with version information.")

if( CLANG_VENDOR )

add_definitions( -DCLANG_VENDOR="${CLANG_VENDOR} " )

endif()

set(CLANG_REPOSITORY_STRING "" CACHE STRING

"Vendor-specific text for showing the repository the source is taken from.")

if(CLANG_REPOSITORY_STRING)

add_definitions(-DCLANG_REPOSITORY_STRING="${CLANG_REPOSITORY_STRING}")

endif()

set(CLANG_VENDOR_UTI "org.llvm.clang" CACHE STRING

"Vendor-specific uti.")

set(CLANG_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})

set(CLANG_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})

if( CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR AND NOT MSVC_IDE )

message(FATAL_ERROR "In-source builds are not allowed. CMake would overwrite "

"`CMakeFiles'. Please delete them.")

endif()

if( NOT CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR )

file(GLOB_RECURSE

tablegenned_files_on_include_dir

"${CLANG_SOURCE_DIR}/include/clang/*.inc")

if( tablegenned_files_on_include_dir )

message(FATAL_ERROR "Apparently there is a previous in-source build, "

"${tablegenned_files_on_include_dir}\nPlease clean the source directory.")

endif()

endif()

string(REGEX MATCH "[0-9]+\\.[0-9]+(\\.[0-9]+)?" CLANG_VERSION

${PACKAGE_VERSION})

message(STATUS "Clang version: ${CLANG_VERSION}")

string(REGEX REPLACE "([0-9]+)\\.[0-9]+(\\.[0-9]+)?" "\\1" CLANG_VERSION_MAJOR

${CLANG_VERSION})

string(REGEX REPLACE "[0-9]+\\.([0-9]+)(\\.[0-9]+)?" "\\1" CLANG_VERSION_MINOR

${CLANG_VERSION})

if (${CLANG_VERSION} MATCHES "[0-9]+\\.[0-9]+\\.[0-9]+")

set(CLANG_HAS_VERSION_PATCHLEVEL 1)

string(REGEX REPLACE "[0-9]+\\.[0-9]+\\.([0-9]+)" "\\1" CLANG_VERSION_PATCHLEVEL

${CLANG_VERSION})

else()

set(CLANG_HAS_VERSION_PATCHLEVEL 0)

endif()

configure_file(

${CMAKE_CURRENT_SOURCE_DIR}/include/clang/Basic/Version.inc.in

${CMAKE_CURRENT_BINARY_DIR}/include/clang/Basic/Version.inc)

if (LLVM_COMPILER_IS_GCC_COMPATIBLE)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-common -Woverloaded-virtual -Wcast-qual -fno-strict-aliasing")

# Enable -pedantic for Clang even if it's not enabled for LLVM.

if (NOT LLVM_ENABLE_PEDANTIC)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pedantic -Wno-long-long")

endif ()

check_cxx_compiler_flag("-Werror -Wnested-anon-types" CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG)

if( CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG )

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-nested-anon-types" )

endif()

endif ()

configure_file(

${CLANG_SOURCE_DIR}/include/clang/Config/config.h.cmake

${CLANG_BINARY_DIR}/include/clang/Config/config.h)

include(CMakeParseArguments)

function(clang_tablegen)

# Syntax:

# clang_tablegen output-file [tablegen-arg ...] SOURCE source-file

# [[TARGET cmake-target-name] [DEPENDS extra-dependency ...]]

#

# Generates a custom command for invoking tblgen as

#

# tblgen source-file -o=output-file tablegen-arg ...

#

# and, if cmake-target-name is provided, creates a custom target for

# executing the custom command depending on output-file. It is

# possible to list more files to depend after DEPENDS.

cmake_parse_arguments(CTG "" "SOURCE;TARGET" "" ${ARGN})

if( NOT CTG_SOURCE )

message(FATAL_ERROR "SOURCE source-file required by clang_tablegen")

endif()

set( LLVM_TARGET_DEFINITIONS ${CTG_SOURCE} )

tablegen(CLANG ${CTG_UNPARSED_ARGUMENTS})

if(CTG_TARGET)

add_public_tablegen_target(${CTG_TARGET})

set_target_properties( ${CTG_TARGET} PROPERTIES FOLDER "Clang tablegenning")

set_property(GLOBAL APPEND PROPERTY CLANG_TABLEGEN_TARGETS ${CTG_TARGET})

endif()

endfunction(clang_tablegen)

macro(add_clang_library name)

cmake_parse_arguments(ARG

""

""

"ADDITIONAL_HEADERS"

${ARGN})

set(srcs)

if(MSVC_IDE OR XCODE)

# Add public headers

file(RELATIVE_PATH lib_path

${CLANG_SOURCE_DIR}/lib/

${CMAKE_CURRENT_SOURCE_DIR}

)

if(NOT lib_path MATCHES "^[.][.]")

file( GLOB_RECURSE headers

${CLANG_SOURCE_DIR}/include/clang/${lib_path}/*.h

${CLANG_SOURCE_DIR}/include/clang/${lib_path}/*.def

)

set_source_files_properties(${headers} PROPERTIES HEADER_FILE_ONLY ON)

file( GLOB_RECURSE tds

${CLANG_SOURCE_DIR}/include/clang/${lib_path}/*.td

)

source_group("TableGen descriptions" FILES ${tds})

set_source_files_properties(${tds}} PROPERTIES HEADER_FILE_ONLY ON)

if(headers OR tds)

set(srcs ${headers} ${tds})

endif()

endif()

endif(MSVC_IDE OR XCODE)

if(srcs OR ARG_ADDITIONAL_HEADERS)

set(srcs

ADDITIONAL_HEADERS

${srcs}

${ARG_ADDITIONAL_HEADERS} # It may contain unparsed unknown args.

)

endif()

llvm_add_library(${name} ${ARG_UNPARSED_ARGUMENTS} ${srcs})

if(TARGET ${name})

target_link_libraries(${name} ${cmake_2_8_12_INTERFACE} ${LLVM_COMMON_LIBS})

if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY OR ${name} STREQUAL "libclang")

install(TARGETS ${name}

LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX}

ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX}

RUNTIME DESTINATION bin)

endif()

else()

# Add empty "phony" target

add_custom_target(${name})

endif()

set_target_properties(${name} PROPERTIES FOLDER "Clang libraries")

endmacro(add_clang_library)

macro(add_clang_executable name)

add_llvm_executable( ${name} ${ARGN} )

set_target_properties(${name} PROPERTIES FOLDER "Clang executables")

endmacro(add_clang_executable)

set(CMAKE_INCLUDE_CURRENT_DIR ON)

include_directories(BEFORE

${CMAKE_CURRENT_BINARY_DIR}/include

${CMAKE_CURRENT_SOURCE_DIR}/include

)

if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)

install(DIRECTORY include/clang include/clang-c

DESTINATION include

FILES_MATCHING

PATTERN "*.def"

PATTERN "*.h"

PATTERN "config.h" EXCLUDE

PATTERN ".svn" EXCLUDE

)

install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/include/clang

DESTINATION include

FILES_MATCHING

PATTERN "CMakeFiles" EXCLUDE

PATTERN "*.inc"

)

endif()

install(DIRECTORY include/clang-c

DESTINATION include

FILES_MATCHING

PATTERN "*.h"

PATTERN ".svn" EXCLUDE

)

add_definitions( -D_GNU_SOURCE )

option(CLANG_ENABLE_ARCMT "Build ARCMT." ON)

if (CLANG_ENABLE_ARCMT)

set(ENABLE_CLANG_ARCMT "1")

else()

set(ENABLE_CLANG_ARCMT "0")

endif()

option(CLANG_ENABLE_STATIC_ANALYZER "Build static analyzer." ON)

if (CLANG_ENABLE_STATIC_ANALYZER)

set(ENABLE_CLANG_STATIC_ANALYZER "1")

else()

set(ENABLE_CLANG_STATIC_ANALYZER "0")

endif()

if (NOT CLANG_ENABLE_STATIC_ANALYZER AND CLANG_ENABLE_ARCMT)

message(FATAL_ERROR "Cannot disable static analyzer while enabling ARCMT")

endif()

if(CLANG_ENABLE_ARCMT)

add_definitions(-DCLANG_ENABLE_ARCMT)

add_definitions(-DCLANG_ENABLE_OBJC_REWRITER)

endif()

if(CLANG_ENABLE_STATIC_ANALYZER)

add_definitions(-DCLANG_ENABLE_STATIC_ANALYZER)

endif()

set(CLANG_EXECUTABLE_VERSION

"${CLANG_VERSION_MAJOR}.${CLANG_VERSION_MINOR}" CACHE STRING

"Version number that will be placed into the clang executable, in the form XX.YY")

set(LIBCLANG_LIBRARY_VERSION

"${CLANG_VERSION_MAJOR}.${CLANG_VERSION_MINOR}" CACHE STRING

"Version number that will be placed into the libclang library , in the form XX.YY")

mark_as_advanced(CLANG_EXECUTABLE_VERSION LIBCLANG_LIBRARY_VERSION)

add_subdirectory(utils/TableGen)

add_subdirectory(include)

get_property(CLANG_TABLEGEN_TARGETS GLOBAL PROPERTY CLANG_TABLEGEN_TARGETS)

list(APPEND LLVM_COMMON_DEPENDS ${CLANG_TABLEGEN_TARGETS})

add_subdirectory(lib)

add_subdirectory(tools)

add_subdirectory(runtime)

option(CLANG_BUILD_EXAMPLES "Build CLANG example programs by default." OFF)

if (CLANG_BUILD_EXAMPLES)

set(ENABLE_CLANG_EXAMPLES "1")

else()

set(ENABLE_CLANG_EXAMPLES "0")

endif()

add_subdirectory(examples)

option(CLANG_INCLUDE_TESTS

"Generate build targets for the Clang unit tests."

${LLVM_INCLUDE_TESTS})

if( CLANG_INCLUDE_TESTS )

if(EXISTS ${LLVM_MAIN_SRC_DIR}/utils/unittest/googletest/include/gtest/gtest.h)

add_subdirectory(unittests)

list(APPEND CLANG_TEST_DEPS ClangUnitTests)

list(APPEND CLANG_TEST_PARAMS

clang_unit_site_config=${CMAKE_CURRENT_BINARY_DIR}/test/Unit/lit.site.cfg

)

endif()

add_subdirectory(test)

if(CLANG_BUILT_STANDALONE)

# Add a global check rule now that all subdirectories have been traversed

# and we know the total set of lit testsuites.

get_property(LLVM_LIT_TESTSUITES GLOBAL PROPERTY LLVM_LIT_TESTSUITES)

get_property(LLVM_LIT_PARAMS GLOBAL PROPERTY LLVM_LIT_PARAMS)

get_property(LLVM_LIT_DEPENDS GLOBAL PROPERTY LLVM_LIT_DEPENDS)

get_property(LLVM_LIT_EXTRA_ARGS GLOBAL PROPERTY LLVM_LIT_EXTRA_ARGS)

add_lit_target(check-all

"Running all regression tests"

${LLVM_LIT_TESTSUITES}

PARAMS ${LLVM_LIT_PARAMS}

DEPENDS ${LLVM_LIT_DEPENDS}

ARGS ${LLVM_LIT_EXTRA_ARGS}

)

endif()

endif()

option(CLANG_INCLUDE_DOCS "Generate build targets for the Clang docs."

${LLVM_INCLUDE_DOCS})

if( CLANG_INCLUDE_DOCS )

add_subdirectory(docs)

endif()

set(CLANG_ORDER_FILE "" CACHE FILEPATH

"Order file to use when compiling clang in order to improve startup time.")