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# 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 ${CMAKE_BINARY_DIR}/lib )
set( CLANG_BUILT_STANDALONE 1 )
endif()
set(CLANG_RESOURCE_DIR "" CACHE STRING
"Relative directory from the Clang binary to its resource files.")
set(C_INCLUDE_DIRS "" CACHE STRING
"Colon separated list of directories clang will search for headers.")
set(GCC_INSTALL_PREFIX "" CACHE PATH "Directory where gcc is installed." )
set(DEFAULT_SYSROOT "" CACHE PATH
"Default <path> to all compiler invocations for --sysroot=<path>." )
set(CLANG_VENDOR "" CACHE STRING
"Vendor-specific text for showing with version information.")
if( CLANG_VENDOR )
add_definitions( -DCLANG_VENDOR="${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 -pedantic -Wno-long-long -Wall -W -Wno-unused-parameter -Wwrite-strings")
endif ()
if (APPLE)
set(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)
string( REGEX MATCHALL "/[^/]+" split_path ${CMAKE_CURRENT_SOURCE_DIR})
list( GET split_path -1 dir)
file( GLOB_RECURSE headers
../../../include/clang/StaticAnalyzer${dir}/*.h
../../../include/clang/StaticAnalyzer${dir}/*.td
../../../include/clang/StaticAnalyzer${dir}/*.def
../../include/clang${dir}/*.h
../../include/clang${dir}/*.td
../../include/clang${dir}/*.def)
set(srcs ${srcs} ${headers})
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( ${name} )
add_dependencies(${name} ClangDiagnosticCommon)
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 ${CMAKE_CURRENT_BINARY_DIR}/include/
DESTINATION include
FILES_MATCHING
PATTERN "CMakeFiles" EXCLUDE
PATTERN "*.inc"
)
add_definitions( -D_GNU_SOURCE )
# Clang version information
set(CLANG_EXECUTABLE_VERSION
"${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}.${CLANG_VERSION_MINOR}" CACHE STRING
"Version number that will be placed into the libclang library , in the form XX.YY")
mark_as_advanced(CLANG_EXECUTABLE_VERSION LIBCLANG_LIBRARY_VERSION)
add_subdirectory(utils/TableGen)
option(CLANG_BUILD_EXAMPLES "Build CLANG example programs by default." OFF)
add_subdirectory(examples)
add_subdirectory(include)
add_subdirectory(lib)
add_subdirectory(tools)
add_subdirectory(runtime)
# TODO: docs.
add_subdirectory(test)
if( LLVM_INCLUDE_TESTS )
if( NOT CLANG_BUILT_STANDALONE )
add_subdirectory(unittests)
endif()
endif()
# Workaround for MSVS10 to avoid the Dialog Hell
# FIXME: This could be removed with future version of CMake.
if( CLANG_BUILT_STANDALONE AND MSVC_VERSION EQUAL 1600 )
set(CLANG_SLN_FILENAME "${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.")
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