mirror of
https://github.com/MaskRay/ccls.git
synced 2024-11-21 23:25:07 +00:00
Import cmake improvement by Daan De Meyer
This commit is contained in:
Fangrui Song
parent
a52d56a453
commit
b51347960c
@ -3,13 +3,14 @@ project(ccls LANGUAGES CXX)
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list(APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/)
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include(DefaultCMakeBuildType)
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include(DownloadAndExtractLLVM)
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set(CLANG_VERSION 6.0.0 CACHE STRING "Downloaded Clang version (6.0.0)")
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option(SYSTEM_CLANG "Use system Clang instead of downloading Clang" OFF)
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# Required libclang version
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set(LIBCLANG_VERSION 6.0.0 CACHE STRING "libclang version")
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set(LIBCLANG_DOWNLOAD_LOCATION ${CMAKE_BINARY_DIR}
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CACHE STRING "Downloaded libclang location")
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option(SYSTEM_LIBCLANG "Use system installation of libclang instead of \
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downloading libclang" OFF)
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option(ASAN "Compile with address sanitizers" OFF)
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option(CLANG_CXX "Build with Clang C++ api required by some ccls \
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features (warning: not available in LLVM Windows downloads)" OFF)
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# Sources for the executable are specified at end of CMakeLists.txt
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add_executable(ccls "")
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@ -63,13 +64,6 @@ else()
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$<$<CONFIG:Debug>:-fno-limit-debug-info>)
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endif()
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if(CLANG_CXX)
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# -Wno-comment: include/clang/Format/Format.h error: multi-line comment
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# -fno-rtti: # Without -fno-rtti, some Clang C++ functions may report
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# `undefined references to typeinfo`
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target_compile_options(ccls PRIVATE -Wno-comment -fno-rtti)
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endif()
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if(ASAN)
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target_compile_options(ccls PRIVATE -fsanitize=address,undefined)
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# target_link_libraries also takes linker flags
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@ -77,18 +71,23 @@ else()
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endif()
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endif()
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### Download Clang if required
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### Download libclang if required
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if(NOT SYSTEM_CLANG)
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download_and_extract_llvm(${CLANG_VERSION})
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if(NOT SYSTEM_LIBCLANG)
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message(STATUS "Using downloaded libclang")
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include(DownloadAndExtractClang)
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download_and_extract_clang(${LIBCLANG_VERSION} ${LIBCLANG_DOWNLOAD_LOCATION})
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# Used by FindClang
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set(CLANG_ROOT ${DOWNLOADED_CLANG_DIR})
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else()
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message(STATUS "Using system libclang")
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endif()
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### Libraries
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# See cmake/FindClang.cmake
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find_package(Clang REQUIRED)
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find_package(Clang ${CLANG_VERSION} REQUIRED)
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target_link_libraries(ccls PRIVATE Clang::Clang)
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# Enable threading support
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@ -96,7 +95,9 @@ set(THREADS_PREFER_PTHREAD_FLAG ON)
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find_package(Threads REQUIRED)
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target_link_libraries(ccls PRIVATE Threads::Threads)
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if(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
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if(${CMAKE_SYSTEM_NAME} STREQUAL Darwin)
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target_link_libraries(ccls PRIVATE -lc++experimental)
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elseif(${CMAKE_SYSTEM_NAME} STREQUAL Windows)
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else()
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target_link_libraries(ccls PRIVATE -lstdc++fs)
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endif()
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@ -117,12 +118,6 @@ elseif(${CMAKE_SYSTEM_NAME} STREQUAL Windows)
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target_link_libraries(ccls PRIVATE Psapi)
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endif()
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if(CLANG_CXX)
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# Clang C++ api uses ncurses
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find_package(Curses REQUIRED)
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target_link_libraries(ccls PRIVATE ${CURSES_LIBRARIES})
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endif()
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### Definitions
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target_compile_definitions(ccls PRIVATE
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@ -131,10 +126,6 @@ target_compile_definitions(ccls PRIVATE
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LOGURU_THREADNAME_WIDTH=13
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DEFAULT_RESOURCE_DIRECTORY="${Clang_RESOURCE_DIR}")
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if(CLANG_CXX)
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target_compile_definitions(ccls PRIVATE USE_CLANG_CXX=1 LOGURU_RTTI=0)
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endif()
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### Includes
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target_include_directories(ccls PRIVATE
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@ -150,9 +141,8 @@ target_include_directories(ccls PRIVATE
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install(TARGETS ccls RUNTIME DESTINATION bin)
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# We don't need to install libclang on Windows if we are using downloaded LLVM
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# since libclang is distributed as a static library on Windows
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if(NOT SYSTEM_CLANG AND NOT ${CMAKE_SYSTEM_NAME} STREQUAL Windows)
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# TODO: install libclang.dll on Windows as well
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if(NOT SYSTEM_LIBCLANG AND NOT ${CMAKE_SYSTEM_NAME} STREQUAL Windows)
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if(${CMAKE_SYSTEM_NAME} MATCHES Linux|FreeBSD)
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set_property(TARGET ccls APPEND PROPERTY
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@ -167,6 +157,44 @@ if(NOT SYSTEM_CLANG AND NOT ${CMAKE_SYSTEM_NAME} STREQUAL Windows)
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install(FILES ${LIBCLANG_PLUS_SYMLINKS} DESTINATION lib)
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endif()
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# Allow running from build Windows by copying libclang.dll to build directory
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if(NOT SYSTEM_LIBCLANG AND ${CMAKE_SYSTEM_NAME} STREQUAL Windows)
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add_custom_command(TARGET ccls
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POST_BUILD
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COMMAND ${CMAKE_COMMAND} -E copy
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${DOWNLOADED_CLANG_DIR}/bin/libclang.dll
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$<TARGET_FILE_DIR:ccls>
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COMMENT "Copying libclang.dll to build directory ...")
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endif()
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### Tools
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# We use glob here since source files are already manually added with
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# target_sources further down
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file(GLOB SOURCES src/*.cc src/*.h src/serializers/*.cc src/serializers/*.h
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src/messages/*.h src/messages/*.cc)
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if(Clang_FORMAT AND ${Clang_VERSION} STREQUAL 6.0.0)
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add_custom_target(format
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COMMAND ${Clang_FORMAT} -i ${SOURCES}
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# .clang-format is located in the ccls root project dir
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WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
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COMMENT "Running clang-format ...")
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else()
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# Set error message depending on which condition was false
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if (NOT Clang_FORMAT)
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set(Clang_FORMAT_ERROR "Error: clang-format executable not found")
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elseif(NOT ${Clang_VERSION} STREQUAL 6.0.0)
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set(Clang_FORMAT_ERROR "Error: clang-format version does not match \
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6.0.0. Due to differences in clang-format output between versions we only \
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support clang-format 6.0.0")
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endif()
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add_custom_target(format
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COMMAND ${CMAKE_COMMAND} -E cmake_echo_color --red --bold
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${Clang_FORMAT_ERROR})
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endif()
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### Sources
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target_sources(ccls PRIVATE third_party/siphash.cc)
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@ -1,51 +1,52 @@
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# Downloads and extracts the 7-Zip MSI installer from https://www.7-zip.org/.
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#
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# Returns the extracted 7-Zip directory in DOWNLOADED_7ZIP_DIR
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#
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# Downloads 7-Zip to extract LLVM if it isn't available in the PATH
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function(download_and_extract_7zip)
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function(download_and_extract_7zip 7ZIP_DOWNLOAD_LOCATION)
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set(7ZIP_VERSION 1801)
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set(7ZIP_EXT .msi)
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set(7ZIP_NAME 7z${7ZIP_VERSION}-x64)
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set(7ZIP_FULL_NAME ${7ZIP_NAME}${7ZIP_EXT})
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set(7ZIP_FILE ${CMAKE_BINARY_DIR}/${7ZIP_FULL_NAME})
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set(7ZIP_EXTRACT_DIR ${CMAKE_BINARY_DIR}/${7ZIP_NAME})
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set(7ZIP_FILE ${7ZIP_DOWNLOAD_LOCATION}/${7ZIP_FULL_NAME})
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set(7ZIP_EXTRACT_DIR ${7ZIP_DOWNLOAD_LOCATION}/${7ZIP_NAME})
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set(7ZIP_URL https://www.7-zip.org/a/${7ZIP_FULL_NAME})
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# Exit if 7-Zip is already downloaded and extracted
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find_program(7ZIP_EXECUTABLE 7z NO_DEFAULT_PATH
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PATHS ${7ZIP_EXTRACT_DIR}/Files/7-Zip)
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if(7ZIP_EXECUTABLE)
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message(STATUS "7-Zip already downloaded")
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return()
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endif()
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message(STATUS "Downloading 7-Zip ${7ZIP_VERSION} (${7ZIP_URL}) ...")
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file(DOWNLOAD ${7ZIP_URL} ${7ZIP_FILE})
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find_program(MSIEXEC_EXECUTABLE msiexec)
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if(NOT MSIEXEC_EXECUTABLE)
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message(FATAL_ERROR "Unable to find msiexec (required to extract 7-Zip msi \
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installer). Install 7-Zip yourself and make sure it is available in the path")
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endif()
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message(STATUS "Extracting downloaded 7-Zip ...")
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# msiexec requires Windows path separators (\)
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file(TO_NATIVE_PATH ${7ZIP_FILE} 7ZIP_FILE)
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file(TO_NATIVE_PATH ${7ZIP_EXTRACT_DIR} 7ZIP_EXTRACT_DIR)
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if(NOT EXISTS ${7ZIP_FILE})
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message(STATUS "Downloading 7-Zip ${7ZIP_VERSION} (${7ZIP_URL}) ...")
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file(DOWNLOAD ${7ZIP_URL} ${7ZIP_FILE})
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endif()
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if(NOT EXISTS ${7ZIP_EXTRACT_DIR})
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find_program(MSIEXEC_EXECUTABLE msiexec)
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if(NOT MSIEXEC_EXECUTABLE)
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message(FATAL_ERROR "Unable to find msiexec (required to extract 7-Zip msi \
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installer). Install 7-Zip yourself and make sure it is available in the path")
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endif()
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message(STATUS "Extracting downloaded 7-Zip ...")
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# msiexec with /a option allows extraction of msi installers without requiring
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# admin privileges. We use this to extract the 7-Zip installer without
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# requiring any actions from the user
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execute_process(COMMAND ${MSIEXEC_EXECUTABLE} /a ${7ZIP_FILE} /qn
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# msiexec with /a option allows extraction of msi installers without requiring
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# admin privileges. We use this to extract the 7-Zip installer without
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# requiring any actions from the user
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execute_process(COMMAND ${MSIEXEC_EXECUTABLE} /a ${7ZIP_FILE} /qn
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TARGETDIR=${7ZIP_EXTRACT_DIR}
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WORKING_DIRECTORY ${7ZIP_DOWNLOAD_LOCATION}
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OUTPUT_QUIET)
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endif()
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# Convert back to CMake separators (/) before returning
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file(TO_CMAKE_PATH ${7ZIP_EXTRACT_DIR} 7ZIP_EXTRACT_DIR)
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# Actual directory is nested inside the extract directory. We return the nested
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# directory instead of the extract directory
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# Actual 7-Zip directory is nested inside the extract directory.
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set(DOWNLOADED_7ZIP_DIR ${7ZIP_EXTRACT_DIR}/Files/7-Zip PARENT_SCOPE)
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endfunction()
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124
cmake/DownloadAndExtractClang.cmake
Normal file
124
cmake/DownloadAndExtractClang.cmake
Normal file
@ -0,0 +1,124 @@
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# Downloads and extracts the Clang archive for the current system from
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# https://releases.llvm.org
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#
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# Returns the extracted Clang archive directory in DOWNLOADED_CLANG_DIR
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#
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# Downloads 7-Zip to extract Clang if it isn't available in the PATH
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function(download_and_extract_clang CLANG_VERSION CLANG_DOWNLOAD_LOCATION)
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set(CLANG_ARCHIVE_EXT .tar.xz)
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if(${CMAKE_SYSTEM_NAME} STREQUAL Linux)
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set(CLANG_ARCHIVE_NAME
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clang+llvm-${CLANG_VERSION}-x86_64-linux-gnu-ubuntu-14.04)
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elseif(${CMAKE_SYSTEM_NAME} STREQUAL Darwin)
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set(CLANG_ARCHIVE_NAME clang+llvm-${CLANG_VERSION}-x86_64-apple-darwin)
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elseif(${CMAKE_SYSTEM_NAME} STREQUAL Windows)
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set(CLANG_ARCHIVE_NAME LLVM-${CLANG_VERSION}-win64)
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set(CLANG_ARCHIVE_EXT .exe)
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elseif(${CMAKE_SYSTEM_NAME} STREQUAL FreeBSD)
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if(${CLANG_VERSION} STREQUAL 6.0.0)
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set(CLANG_ARCHIVE_NAME clang+llvm-${CLANG_VERSION}-amd64-unknown-freebsd-10)
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else()
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set(CLANG_ARCHIVE_NAME clang+llvm-${CLANG_VERSION}-amd64-unknown-freebsd10)
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endif()
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endif()
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set(CLANG_ARCHIVE_FULL_NAME ${CLANG_ARCHIVE_NAME}${CLANG_ARCHIVE_EXT})
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set(CLANG_ARCHIVE_FILE ${CLANG_DOWNLOAD_LOCATION}/${CLANG_ARCHIVE_FULL_NAME})
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set(CLANG_ARCHIVE_EXTRACT_DIR ${CLANG_DOWNLOAD_LOCATION}/${CLANG_ARCHIVE_NAME})
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set(CLANG_ARCHIVE_URL
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https://releases.llvm.org/${CLANG_VERSION}/${CLANG_ARCHIVE_FULL_NAME})
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set(CLANG_ARCHIVE_HASH_FILE
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${CMAKE_SOURCE_DIR}/clang_archive_hashes/${CLANG_ARCHIVE_FULL_NAME}.SHA256)
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# Exit if Clang is already downloaded and extracted
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set(CLANG_ROOT ${CLANG_ARCHIVE_EXTRACT_DIR})
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find_package(Clang ${CLANG_VERSION} QUIET)
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if(Clang_FOUND)
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message(STATUS "Clang already downloaded")
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set(DOWNLOADED_CLANG_DIR ${CLANG_ARCHIVE_EXTRACT_DIR} PARENT_SCOPE)
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return()
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endif()
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if(NOT CLANG_ARCHIVE_NAME)
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message(FATAL_ERROR "No Clang archive url specified for current platform \
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(${CMAKE_SYSTEM_NAME}). Please file an issue to get it added.")
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endif()
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if(NOT EXISTS ${CLANG_ARCHIVE_HASH_FILE})
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message(FATAL_ERROR "No SHA256 hash available for the current platform \
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(${CMAKE_SYSTEM_NAME}) + clang version (${CLANG_VERSION}) combination. Please \
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file an issue to get it added.")
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endif()
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# Download Clang archive
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message(STATUS "Downloading Clang ${CLANG_VERSION} (${CLANG_ARCHIVE_URL}) ...")
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file(DOWNLOAD ${CLANG_ARCHIVE_URL} ${CLANG_ARCHIVE_FILE}
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STATUS CLANG_ARCHIVE_DOWNLOAD_RESULT)
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# Abort if download failed
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list(GET ${CLANG_ARCHIVE_DOWNLOAD_RESULT} 0 ERROR_CODE)
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if(${ERROR_CODE})
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list(GET ${CLANG_ARCHIVE_DOWNLOAD_RESULT} 1 ERROR_STRING)
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message(FATAL_ERROR ${ERROR_STRING})
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endif()
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# Retrieve expected hash from file and strip newline
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file(READ ${CLANG_ARCHIVE_HASH_FILE} CLANG_ARCHIVE_EXPECTED_HASH)
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string(STRIP ${CLANG_ARCHIVE_EXPECTED_HASH} CLANG_ARCHIVE_EXPECTED_HASH)
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# Calculate actual hash
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file(SHA256 ${CLANG_ARCHIVE_FILE} CLANG_ARCHIVE_HASH)
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# Abort if hashes do not match
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if(NOT ${CLANG_ARCHIVE_EXPECTED_HASH} STREQUAL ${CLANG_ARCHIVE_HASH})
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message(FATAL_ERROR "SHA256 hash of downloaded Clang does not match \
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expected hash. Remove the build directory and try running CMake again. If this \
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keeps happening, file an issue to report the problem.")
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endif()
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if(${CLANG_ARCHIVE_EXT} STREQUAL .exe)
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# Download and extract 7-zip if not found in PATH
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find_program(7ZIP_EXECUTABLE 7z)
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if(NOT 7ZIP_EXECUTABLE)
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message(STATUS "7-Zip not found in PATH")
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include(DownloadAndExtract7zip)
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download_and_extract_7zip(${CLANG_DOWNLOAD_LOCATION})
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find_program(7ZIP_EXECUTABLE 7z NO_DEFAULT_PATH
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PATHS ${DOWNLOADED_7ZIP_DIR})
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else()
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message(STATUS "7-Zip found in PATH")
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endif()
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message(STATUS "Extracting downloaded Clang with 7-Zip ...")
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# Avoid running the Clang installer by extracting the exe with 7-Zip
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execute_process(COMMAND ${7ZIP_EXECUTABLE} x
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-o${CLANG_ARCHIVE_EXTRACT_DIR}
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-xr!$PLUGINSDIR ${CLANG_ARCHIVE_FILE}
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WORKING_DIRECTORY ${CLANG_DOWNLOAD_LOCATION}
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OUTPUT_QUIET)
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elseif(${CLANG_ARCHIVE_EXT} STREQUAL .tar.xz)
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message(STATUS "Extracting downloaded Clang with CMake built-in tar ...")
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# CMake has builtin support for tar via the -E flag
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execute_process(COMMAND ${CMAKE_COMMAND} -E tar -xf ${CLANG_ARCHIVE_FILE}
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# Specify working directory to allow running cmake from
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# everywhere
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# (example: cmake -H"$HOME/ccls" -B"$home/ccls/build")
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WORKING_DIRECTORY ${CLANG_DOWNLOAD_LOCATION}
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OUTPUT_QUIET)
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endif()
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set(DOWNLOADED_CLANG_DIR ${CLANG_ARCHIVE_EXTRACT_DIR} PARENT_SCOPE)
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endfunction()
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@ -1,112 +0,0 @@
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# Downloads and extracts the LLVM archive for the current system from
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# https://releases.llvm.org
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#
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# Returns the extracted LLVM archive directory in DOWNLOADED_CLANG_DIR
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#
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# Downloads 7-Zip to extract LLVM if it isn't available in the PATH
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function(download_and_extract_llvm CLANG_VERSION)
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include(DownloadAndExtract7zip)
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set(CLANG_ARCHIVE_EXT .tar.xz)
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if(${CMAKE_SYSTEM_NAME} STREQUAL Linux)
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set(CLANG_ARCHIVE_NAME
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clang+llvm-${CLANG_VERSION}-x86_64-linux-gnu-ubuntu-14.04)
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elseif(${CMAKE_SYSTEM_NAME} STREQUAL Darwin)
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set(CLANG_ARCHIVE_NAME clang+llvm-${CLANG_VERSION}-x86_64-apple-darwin)
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elseif(${CMAKE_SYSTEM_NAME} STREQUAL Windows)
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set(CLANG_ARCHIVE_NAME LLVM-${CLANG_VERSION}-win64)
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set(CLANG_ARCHIVE_EXT .exe)
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elseif(${CMAKE_SYSTEM_NAME} STREQUAL FreeBSD)
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if(${CLANG_VERSION} STREQUAL 6.0.0)
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set(CLANG_ARCHIVE_NAME clang+llvm-${CLANG_VERSION}-amd64-unknown-freebsd-10)
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else()
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set(CLANG_ARCHIVE_NAME clang+llvm-${CLANG_VERSION}-amd64-unknown-freebsd10)
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endif()
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endif()
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if(NOT CLANG_ARCHIVE_NAME)
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message(FATAL_ERROR "No LLVM archive url specified for current platform \
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(${CMAKE_SYSTEM_NAME}). Please file an issue to get it added.")
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endif()
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set(CLANG_ARCHIVE_FULL_NAME ${CLANG_ARCHIVE_NAME}${CLANG_ARCHIVE_EXT})
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set(CLANG_ARCHIVE_FILE ${CMAKE_BINARY_DIR}/${CLANG_ARCHIVE_FULL_NAME})
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set(CLANG_ARCHIVE_EXTRACT_DIR ${CMAKE_BINARY_DIR}/${CLANG_ARCHIVE_NAME})
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set(CLANG_ARCHIVE_URL
|
||||
https://releases.llvm.org/${CLANG_VERSION}/${CLANG_ARCHIVE_FULL_NAME})
|
||||
set(CLANG_ARCHIVE_HASH_FILE
|
||||
${CMAKE_SOURCE_DIR}/clang_archive_hashes/${CLANG_ARCHIVE_FULL_NAME}.SHA256)
|
||||
|
||||
if(NOT EXISTS ${CLANG_ARCHIVE_HASH_FILE})
|
||||
message(FATAL_ERROR "No SHA256 hash available for the current platform \
|
||||
(${CMAKE_SYSTEM_NAME}) + clang version (${CLANG_VERSION}) combination. Please \
|
||||
file an issue to get it added.")
|
||||
endif()
|
||||
|
||||
file(READ ${CLANG_ARCHIVE_HASH_FILE} CLANG_ARCHIVE_EXPECTED_HASH)
|
||||
# Strip newline
|
||||
string(STRIP ${CLANG_ARCHIVE_EXPECTED_HASH} CLANG_ARCHIVE_EXPECTED_HASH)
|
||||
|
||||
if(NOT EXISTS ${CLANG_ARCHIVE_FILE})
|
||||
message(STATUS "Downloading LLVM ${CLANG_VERSION} (${CLANG_ARCHIVE_URL}) ...")
|
||||
file(DOWNLOAD ${CLANG_ARCHIVE_URL} ${CLANG_ARCHIVE_FILE}
|
||||
STATUS CLANG_ARCHIVE_DOWNLOAD_RESULT)
|
||||
|
||||
list(GET ${CLANG_ARCHIVE_DOWNLOAD_RESULT} 0 ERROR_CODE)
|
||||
if(${ERROR_CODE})
|
||||
list(GET ${CLANG_ARCHIVE_DOWNLOAD_RESULT} 1 ERROR_STRING)
|
||||
message(FATAL_ERROR ${ERROR_STRING})
|
||||
endif()
|
||||
endif()
|
||||
|
||||
file(SHA256 ${CLANG_ARCHIVE_FILE} CLANG_ARCHIVE_HASH)
|
||||
if(NOT ${CLANG_ARCHIVE_EXPECTED_HASH} STREQUAL ${CLANG_ARCHIVE_HASH})
|
||||
message(FATAL_ERROR "SHA256 hash of downloaded LLVM does not match \
|
||||
expected hash. Remove the build directory and try running CMake again. If this \
|
||||
keeps happening, file an issue to report the problem.")
|
||||
endif()
|
||||
|
||||
if(NOT EXISTS ${CLANG_ARCHIVE_EXTRACT_DIR})
|
||||
if(${CLANG_ARCHIVE_EXT} STREQUAL .exe)
|
||||
find_program(7ZIP_EXECUTABLE 7z)
|
||||
|
||||
if(NOT 7ZIP_EXECUTABLE)
|
||||
message(STATUS "7-Zip not found in PATH")
|
||||
download_and_extract_7zip()
|
||||
find_program(7ZIP_EXECUTABLE 7z NO_DEFAULT_PATH
|
||||
PATHS ${DOWNLOADED_7ZIP_DIR})
|
||||
else()
|
||||
message(STATUS "7-Zip found in PATH")
|
||||
endif()
|
||||
|
||||
message(STATUS "Extracting downloaded LLVM with 7-Zip ...")
|
||||
|
||||
# Avoid running the LLVM installer by extracting the exe with 7-Zip
|
||||
execute_process(COMMAND ${7ZIP_EXECUTABLE} x
|
||||
-o${CLANG_ARCHIVE_EXTRACT_DIR}
|
||||
-xr!$PLUGINSDIR ${CLANG_ARCHIVE_FILE}
|
||||
OUTPUT_QUIET)
|
||||
elseif(${CLANG_ARCHIVE_EXT} STREQUAL .tar.xz)
|
||||
message(STATUS "Extracting downloaded LLVM with CMake built-in tar ...")
|
||||
# CMake has builtin support for tar via the -E flag
|
||||
execute_process(COMMAND ${CMAKE_COMMAND} -E tar -xf ${CLANG_ARCHIVE_FILE}
|
||||
# Extract to here to allow running cmake from everywhere
|
||||
WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
|
||||
OUTPUT_QUIET)
|
||||
endif()
|
||||
endif()
|
||||
|
||||
# CMake functions have no return values so we just lift our return variable to
|
||||
# the parent scope
|
||||
set(DOWNLOADED_CLANG_DIR ${CLANG_ARCHIVE_EXTRACT_DIR} PARENT_SCOPE)
|
||||
|
||||
endfunction()
|
||||
@ -2,12 +2,13 @@
|
||||
# FindClang
|
||||
# ---------
|
||||
#
|
||||
# Find Clang and LLVM libraries required by cquery
|
||||
# Find Clang and LLVM libraries required by ccls
|
||||
#
|
||||
# Results are reported in the following variables::
|
||||
#
|
||||
# Clang_FOUND - True if headers and requested libraries were found
|
||||
# Clang_EXECUTABLE - Clang executable
|
||||
# Clang_FORMAT - Clang-format executable
|
||||
# Clang_RESOURCE_DIR - Clang resource directory
|
||||
# Clang_VERSION - Clang version as reported by Clang executable
|
||||
#
|
||||
@ -96,13 +97,21 @@ if(CLANG_CXX)
|
||||
_Clang_find_and_add_cxx_lib(LLVMDemangle llvm/Demangle/Demangle.h)
|
||||
endif()
|
||||
|
||||
_Clang_find_program(Clang_FORMAT clang-format)
|
||||
_Clang_find_program(Clang_EXECUTABLE clang)
|
||||
if(Clang_EXECUTABLE)
|
||||
# Find Clang resource directory with Clang executable
|
||||
execute_process(COMMAND ${Clang_EXECUTABLE} -print-resource-dir
|
||||
RESULT_VARIABLE _Clang_FIND_RESOURCE_DIR_RESULT
|
||||
OUTPUT_VARIABLE Clang_RESOURCE_DIR
|
||||
ERROR_VARIABLE _Clang_FIND_RESOURCE_DIR_ERROR
|
||||
OUTPUT_STRIP_TRAILING_WHITESPACE)
|
||||
|
||||
if(_Clang_FIND_RESOURCE_DIR_RESULT)
|
||||
message(FATAL_ERROR "Error retrieving Clang resource directory with Clang \
|
||||
executable. Output:\n ${_Clang_FIND_RESOURCE_DIR_ERROR}")
|
||||
endif()
|
||||
|
||||
# Find Clang version
|
||||
set(_Clang_VERSION_REGEX "([0-9]+)\\.([0-9]+)\\.([0-9]+)")
|
||||
execute_process(COMMAND ${Clang_EXECUTABLE} --version
|
||||
|
||||
Loading…
Reference in New Issue
Block a user