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cmake_minimum_required(VERSION 3.4.3)
if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
message(STATUS "IWYU: out-of-tree configuration")
set(IWYU_IN_TREE OFF)
else()
message(STATUS "IWYU: in-tree configuration")
set(IWYU_IN_TREE ON)
endif()
if (NOT IWYU_IN_TREE)
cmake_policy(SET CMP0048 NEW)
project(include-what-you-use)
find_package(LLVM CONFIG REQUIRED)
find_package(Clang CONFIG REQUIRED)
list(APPEND CMAKE_MODULE_PATH ${LLVM_DIR})
include(AddLLVM)
include(HandleLLVMOptions)
endif()
message(STATUS "IWYU: configuring for LLVM ${LLVM_VERSION}...")
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
add_definitions(${LLVM_DEFINITIONS})
include_directories(
${LLVM_INCLUDE_DIRS}
${CLANG_INCLUDE_DIRS}
)
set(LLVM_LINK_COMPONENTS
Option
Support
X86AsmParser
X86Desc
X86Info
)
add_llvm_executable(include-what-you-use
iwyu.cc
iwyu_ast_util.cc
iwyu_cache.cc
iwyu_driver.cc
iwyu_getopt.cc
iwyu_globals.cc
iwyu_include_picker.cc
iwyu_lexer_utils.cc
iwyu_location_util.cc
iwyu_output.cc
iwyu_path_util.cc
iwyu_preprocessor.cc
iwyu_verrs.cc
)
if (IWYU_IN_TREE)
# Add a dependency on clang-headers to ensure the builtin headers are
# available when IWYU is executed from the build dir.
# The clang-headers target is only available in in-tree builds.
add_dependencies(include-what-you-use clang-headers)
endif()
if (MINGW)
# Work around 'too many sections' error with MINGW/GCC
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wa,-mbig-obj")
endif()
if (MSVC)
# Disable warnings for IWYU, and disable exceptions in MSVC's STL.
add_definitions(
-wd4722 # Suppress ''destructor'' : destructor never returns, potential memory leak
-D_HAS_EXCEPTIONS=0
)
# Enable bigobj support and sane C++ exception semantics.
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /bigobj /EHsc")
# Put project in solution folder
set_target_properties(include-what-you-use
PROPERTIES FOLDER "Clang executables"
)
endif()
target_link_libraries(include-what-you-use
PRIVATE
clangBasic
clangLex
clangAST
clangSema
clangFrontend
clangDriver
# Revision [1] in clang moved PCHContainerOperations from Frontend
# to Serialization, but this broke builds that set
# -DBUILD_SHARED_LIBS=on. Revision [2] is a followup that works
# around the issue by adding an explicit dependency on Serialization
# wherever there was a dependency on Frontend. Since we depend on
# Frontend, we need an explicit dependency on Serialization too.
# [1] https://llvm.org/viewvc/llvm-project?view=revision&revision=348907
# [2] https://llvm.org/viewvc/llvm-project?view=revision&revision=348915
clangSerialization
)
# Platform dependencies.
if (WIN32)
target_link_libraries(include-what-you-use
PRIVATE
shlwapi # For PathMatchSpecA
)
endif()
# Pick up Git revision so we can report it in version information.
include(FindGit)
if (GIT_FOUND AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/.git")
execute_process(COMMAND ${GIT_EXECUTABLE} rev-parse --short HEAD
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
OUTPUT_VARIABLE IWYU_GIT_REV
OUTPUT_STRIP_TRAILING_WHITESPACE)
else()
message(STATUS "Warning: IWYU Git version info not found, DO NOT release "
"from this build tree!")
endif()
add_definitions(-DIWYU_GIT_REV="${IWYU_GIT_REV}")
# Install programs
install(TARGETS include-what-you-use RUNTIME DESTINATION bin)
install(PROGRAMS fix_includes.py iwyu_tool.py DESTINATION bin)
# Install mapping files
file(GLOB MAPPING_FILES *.imp)
install(FILES ${MAPPING_FILES} DESTINATION share/include-what-you-use)
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