# If we are not building as a part of LLVM, build Clang as an # standalone project, using LLVM as an external library: if( CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR ) project(Clang) cmake_minimum_required(VERSION 2.8) set(CLANG_PATH_TO_LLVM_SOURCE "" CACHE PATH "Path to LLVM source code. Not necessary if using an installed LLVM.") set(CLANG_PATH_TO_LLVM_BUILD "" CACHE PATH "Path to the directory where LLVM was built or installed.") if( CLANG_PATH_TO_LLVM_SOURCE ) if( NOT EXISTS "${CLANG_PATH_TO_LLVM_SOURCE}/cmake/config-ix.cmake" ) message(FATAL_ERROR "Please set CLANG_PATH_TO_LLVM_SOURCE to the root directory of LLVM source code.") else() get_filename_component(LLVM_MAIN_SRC_DIR ${CLANG_PATH_TO_LLVM_SOURCE} ABSOLUTE) list(APPEND CMAKE_MODULE_PATH "${LLVM_MAIN_SRC_DIR}/cmake/modules") endif() endif() if( NOT EXISTS "${CLANG_PATH_TO_LLVM_BUILD}/bin/llvm-tblgen${CMAKE_EXECUTABLE_SUFFIX}" ) # Looking for bin/Debug/llvm-tblgen is a complete hack. How can we get # around this? if( NOT EXISTS "${CLANG_PATH_TO_LLVM_BUILD}/bin/Debug/llvm-tblgen${CMAKE_EXECUTABLE_SUFFIX}" ) message(FATAL_ERROR "Please set CLANG_PATH_TO_LLVM_BUILD to a directory containing a LLVM build.") endif() endif() list(APPEND CMAKE_MODULE_PATH "${CLANG_PATH_TO_LLVM_BUILD}/share/llvm/cmake") get_filename_component(PATH_TO_LLVM_BUILD ${CLANG_PATH_TO_LLVM_BUILD} ABSOLUTE) include(AddLLVM) include(TableGen) include("${CLANG_PATH_TO_LLVM_BUILD}/share/llvm/cmake/LLVMConfig.cmake") include(HandleLLVMOptions) set(PACKAGE_VERSION "${LLVM_PACKAGE_VERSION}") set(LLVM_MAIN_INCLUDE_DIR "${LLVM_MAIN_SRC_DIR}/include") set(LLVM_BINARY_DIR ${CMAKE_BINARY_DIR}) set(CMAKE_INCLUDE_CURRENT_DIR ON) include_directories("${PATH_TO_LLVM_BUILD}/include" "${LLVM_MAIN_INCLUDE_DIR}") link_directories("${PATH_TO_LLVM_BUILD}/lib") if( EXISTS "${CLANG_PATH_TO_LLVM_BUILD}/bin/llvm-tblgen${CMAKE_EXECUTABLE_SUFFIX}" ) set(LLVM_TABLEGEN_EXE "${PATH_TO_LLVM_BUILD}/bin/llvm-tblgen${CMAKE_EXECUTABLE_SUFFIX}") else() # FIXME: This is an utter hack. set(LLVM_TABLEGEN_EXE "${PATH_TO_LLVM_BUILD}/bin/Debug/llvm-tblgen${CMAKE_EXECUTABLE_SUFFIX}") endif() # 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") set( CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin ) set( CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib ) set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib ) set( CLANG_BUILT_STANDALONE 1 ) find_package(LibXml2) if (LIBXML2_FOUND) set(CLANG_HAVE_LIBXML 1) endif () endif() set(CLANG_RESOURCE_DIR "" CACHE STRING "Relative directory from the Clang binary to its resource files.") set(C_INCLUDE_DIRS "" CACHE STRING "Colon separated list of directories clang will search for headers.") set(GCC_INSTALL_PREFIX "" CACHE PATH "Directory where gcc is installed." ) set(DEFAULT_SYSROOT "" CACHE PATH "Default <path> to all compiler invocations for --sysroot=<path>." ) set(CLANG_VENDOR "" CACHE STRING "Vendor-specific text for showing with version information.") if( CLANG_VENDOR ) add_definitions( -DCLANG_VENDOR="${CLANG_VENDOR} " ) endif() set(CLANG_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}) set(CLANG_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}) if( CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR AND NOT MSVC_IDE ) message(FATAL_ERROR "In-source builds are not allowed. CMake would overwrite " "the makefiles distributed with LLVM. Please create a directory and run cmake " "from there, passing the path to this source directory as the last argument. " "This process created the file `CMakeCache.txt' and the directory " "`CMakeFiles'. Please delete them.") endif() if( NOT CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR ) file(GLOB_RECURSE tablegenned_files_on_include_dir "${CLANG_SOURCE_DIR}/include/clang/*.inc") if( tablegenned_files_on_include_dir ) message(FATAL_ERROR "Apparently there is a previous in-source build, " "probably as the result of running `configure' and `make' on " "${CLANG_SOURCE_DIR}. This may cause problems. The suspicious files are:\n" "${tablegenned_files_on_include_dir}\nPlease clean the source directory.") endif() endif() # Compute the Clang version from the LLVM version. 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 the Version.inc file. configure_file( ${CMAKE_CURRENT_SOURCE_DIR}/include/clang/Basic/Version.inc.in ${CMAKE_CURRENT_BINARY_DIR}/include/clang/Basic/Version.inc) # Add appropriate flags for GCC if (LLVM_COMPILER_IS_GCC_COMPATIBLE) set(CMAKE_CXX_FLAGS "${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 () if (APPLE) set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -Wl,-flat_namespace -Wl,-undefined -Wl,suppress") endif () configure_file( ${CLANG_SOURCE_DIR}/include/clang/Config/config.h.cmake ${CLANG_BINARY_DIR}/include/clang/Config/config.h) include(LLVMParseArguments) 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. parse_arguments( CTG "SOURCE;TARGET;DEPENDS" "" ${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_DEFAULT_ARGS} ) list( GET CTG_DEFAULT_ARGS 0 output_file ) if( CTG_TARGET ) add_custom_target( ${CTG_TARGET} DEPENDS ${output_file} ${CTG_DEPENDS} ) set_target_properties( ${CTG_TARGET} PROPERTIES FOLDER "Clang tablegenning") endif() endfunction(clang_tablegen) macro(add_clang_library name) llvm_process_sources(srcs ${ARGN}) 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) set(srcs ${srcs} ${headers} ${tds}) endif() endif(MSVC_IDE OR XCODE) if (MODULE) set(libkind MODULE) elseif (SHARED_LIBRARY) set(libkind SHARED) else() set(libkind) endif() add_library( ${name} ${libkind} ${srcs} ) if( LLVM_COMMON_DEPENDS ) add_dependencies( ${name} ${LLVM_COMMON_DEPENDS} ) endif( LLVM_COMMON_DEPENDS ) llvm_config( ${name} ${LLVM_LINK_COMPONENTS} ) target_link_libraries( ${name} ${LLVM_COMMON_LIBS} ) link_system_libs( ${name} ) install(TARGETS ${name} LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX} ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX} RUNTIME DESTINATION bin) set_target_properties(${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) include_directories(BEFORE ${CMAKE_CURRENT_BINARY_DIR}/include ${CMAKE_CURRENT_SOURCE_DIR}/include ) install(DIRECTORY include/ DESTINATION include FILES_MATCHING PATTERN "*.def" PATTERN "*.h" PATTERN "config.h" EXCLUDE PATTERN ".svn" EXCLUDE ) install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/include/ DESTINATION include FILES_MATCHING PATTERN "CMakeFiles" EXCLUDE PATTERN "*.inc" ) add_definitions( -D_GNU_SOURCE ) option(CLANG_ENABLE_ARCMT "Enable ARCMT by default." ON) option(CLANG_ENABLE_REWRITER "Enable rewriter by default." ON) option(CLANG_ENABLE_STATIC_ANALYZER "Enable static analyzer by default." ON) if (NOT CLANG_ENABLE_REWRITER AND CLANG_ENABLE_ARCMT) message(FATAL_ERROR "Cannot disable rewriter while enabling ARCMT") endif() if (NOT CLANG_ENABLE_REWRITER AND CLANG_ENABLE_STATIC_ANALYZER) message(FATAL_ERROR "Cannot disable rewriter while enabling static analyzer") endif() if(CLANG_ENABLE_ARCMT) add_definitions(-DCLANG_ENABLE_ARCMT) endif() if(CLANG_ENABLE_REWRITER) add_definitions(-DCLANG_ENABLE_REWRITER) endif() if(CLANG_ENABLE_STATIC_ANALYZER) add_definitions(-DCLANG_ENABLE_STATIC_ANALYZER) endif() # Clang version information set(CLANG_EXECUTABLE_VERSION "${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) add_subdirectory(lib) add_subdirectory(tools) add_subdirectory(runtime) option(CLANG_BUILD_EXAMPLES "Build CLANG example programs by default." OFF) add_subdirectory(examples) option(CLANG_INCLUDE_TESTS "Generate build targets for the Clang unit tests." ${LLVM_INCLUDE_TESTS}) # TODO: docs. add_subdirectory(test) if( CLANG_INCLUDE_TESTS ) add_subdirectory(unittests) endif() # Workaround for MSVS10 to avoid the Dialog Hell # FIXME: This could be removed with future version of CMake. if( CLANG_BUILT_STANDALONE AND MSVC_VERSION EQUAL 1600 ) set(CLANG_SLN_FILENAME "${CMAKE_CURRENT_BINARY_DIR}/Clang.sln") if( EXISTS "${CLANG_SLN_FILENAME}" ) file(APPEND "${CLANG_SLN_FILENAME}" "\n# This should be regenerated!\n") endif() endif() set(BUG_REPORT_URL "http://llvm.org/bugs/" CACHE STRING "Default URL where bug reports are to be submitted.")