mirror of
https://github.com/MaskRay/ccls.git
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228 lines
6.9 KiB
CMake
228 lines
6.9 KiB
CMake
cmake_minimum_required(VERSION 3.8)
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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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# Required Clang version
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set(CLANG_DOWNLOAD_LOCATION ${CMAKE_BINARY_DIR}
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CACHE STRING "Downloaded Clang location")
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option(SYSTEM_CLANG "Use system installation of Clang instead of \
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downloading Clang" OFF)
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option(ASAN "Compile with address sanitizers" OFF)
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option(LLVM_ENABLE_RTTI "-fno-rtti if OFF. This should match LLVM libraries" OFF)
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option(CLANG_USE_BUNDLED_LIBC++ "Let Clang use bundled libc++" OFF)
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option(USE_SHARED_LLVM "Link against libLLVM.so instead separate LLVM{Option,Support,...}" 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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### Compile options
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# CMake default compile flags:
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# MSVC + Clang(Windows):
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# debug: /MDd /Zi /Ob0 /Od /RTC1
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# release: /MD /O2 /Ob2 /DNDEBUG
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# GCC + Clang(Linux):
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# debug: -g
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# release: -O3 -DNDEBUG
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# Enable C++17 (Required)
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set_property(TARGET ccls PROPERTY CXX_STANDARD 17)
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set_property(TARGET ccls PROPERTY CXX_STANDARD_REQUIRED ON)
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# Disable gnu extensions except for Cygwin which needs them to build properly
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if(NOT CYGWIN)
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set_property(TARGET ccls PROPERTY CXX_EXTENSIONS OFF)
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endif()
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if(NOT LLVM_ENABLE_RTTI)
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# releases.llvm.org libraries are compiled with -fno-rtti
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# The mismatch between lib{clang,LLVM}* and ccls can make libstdc++ std::make_shared return nullptr
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# _Sp_counted_ptr_inplace::_M_get_deleter
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target_compile_options(ccls PRIVATE -fno-rtti)
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endif()
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# CMake sets MSVC for both MSVC and Clang(Windows)
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if(MSVC)
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# Common MSVC/Clang(Windows) options
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target_compile_options(ccls PRIVATE
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/nologo
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/EHsc
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/D_CRT_SECURE_NO_WARNINGS # don't try to use MSVC std replacements
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/W3 # roughly -Wall
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/wd4996 # ignore deprecated declaration
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/wd4267 # ignores warning C4267
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# (conversion from 'size_t' to 'type'),
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# roughly -Wno-sign-compare
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/wd4800
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/wd4068 # Disable unknown pragma warning
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/std:c++17
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$<$<CONFIG:Debug>:/FS>
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)
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# relink system libs
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target_link_libraries(ccls PRIVATE Mincore.lib)
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else()
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# Common GCC/Clang(Linux) options
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target_compile_options(ccls PRIVATE
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-Wall
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-Wno-sign-compare
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)
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if(${CMAKE_CXX_COMPILER_ID} STREQUAL GNU)
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target_compile_options(ccls PRIVATE -Wno-return-type -Wno-unused-result)
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endif()
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if(${CMAKE_CXX_COMPILER_ID} STREQUAL Clang)
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target_compile_options(ccls PRIVATE
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$<$<CONFIG:Debug>:-fno-limit-debug-info>)
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endif()
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if(ASAN)
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target_compile_options(ccls PRIVATE -fsanitize=address,undefined)
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# target_link_libraries also takes linker flags
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target_link_libraries(ccls PRIVATE -fsanitize=address,undefined)
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endif()
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endif()
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### Download Clang if required
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if(NOT SYSTEM_CLANG)
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message(STATUS "Using downloaded Clang")
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include(DownloadAndExtractClang)
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download_and_extract_clang(${CLANG_DOWNLOAD_LOCATION})
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# Used by FindClang
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set(CLANG_ROOT ${DOWNLOADED_CLANG_DIR})
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if(${CMAKE_CXX_COMPILER_ID} STREQUAL Clang AND CLANG_USE_BUNDLED_LIBC++)
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message(STATUS "Using bundled libc++")
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target_compile_options(ccls PRIVATE -nostdinc++ -cxx-isystem ${CLANG_ROOT}/include/c++/v1)
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if(${CMAKE_SYSTEM_NAME} STREQUAL Linux)
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# Don't use -stdlib=libc++ because while ccls is linked with libc++, bundled clang+llvm require libstdc++
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target_link_libraries(ccls PRIVATE -L${CLANG_ROOT}/lib c++ c++abi)
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# FreeBSD defaults to -stdlib=libc++ and uses system libcxxrt.a
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endif()
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endif()
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else()
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message(STATUS "Using system Clang")
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endif()
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### Libraries
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# See cmake/FindClang.cmake
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find_package(Clang 6.0.0)
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target_link_libraries(ccls PRIVATE Clang::Clang)
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# Enable threading support
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set(THREADS_PREFER_PTHREAD_FLAG ON)
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find_package(Threads REQUIRED)
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target_link_libraries(ccls PRIVATE Threads::Threads)
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if(${CMAKE_SYSTEM_NAME} STREQUAL FreeBSD)
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find_package(Backtrace REQUIRED)
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target_link_libraries(ccls PRIVATE ${Backtrace_LIBRARIES})
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# src/platform_posix.cc uses libthr
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target_link_libraries(ccls PRIVATE thr)
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endif()
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### Definitions
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target_compile_definitions(ccls PRIVATE
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DEFAULT_RESOURCE_DIRECTORY=R"\(${Clang_RESOURCE_DIR}\)")
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### Includes
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target_include_directories(ccls PRIVATE src)
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target_include_directories(ccls SYSTEM PRIVATE
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third_party
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third_party/rapidjson/include)
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### Install
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install(TARGETS ccls RUNTIME DESTINATION bin)
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if(NOT SYSTEM_CLANG 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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INSTALL_RPATH $ORIGIN/../lib)
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elseif(${CMAKE_SYSTEM_NAME} STREQUAL Darwin)
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set_property(TARGET ccls APPEND PROPERTY
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INSTALL_RPATH @loader_path/../lib)
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endif()
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file(GLOB LIBCLANG_PLUS_SYMLINKS
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${DOWNLOADED_CLANG_DIR}/lib/libclang.[so,dylib]*)
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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_CLANG 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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### Sources
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target_sources(ccls PRIVATE third_party/siphash.cc)
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target_sources(ccls PRIVATE
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src/clang_tu.cc
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src/config.cc
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src/filesystem.cc
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src/fuzzy_match.cc
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src/main.cc
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src/include_complete.cc
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src/indexer.cc
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src/log.cc
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src/lsp.cc
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src/message_handler.cc
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src/pipeline.cc
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src/platform_posix.cc
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src/platform_win.cc
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src/position.cc
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src/project.cc
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src/query.cc
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src/sema_manager.cc
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src/serializer.cc
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src/test.cc
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src/utils.cc
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src/working_files.cc
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)
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target_sources(ccls PRIVATE
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src/messages/ccls_call.cc
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src/messages/ccls_info.cc
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src/messages/ccls_inheritance.cc
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src/messages/ccls_member.cc
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src/messages/ccls_navigate.cc
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src/messages/ccls_reload.cc
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src/messages/ccls_vars.cc
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src/messages/initialize.cc
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src/messages/textDocument_code.cc
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src/messages/textDocument_completion.cc
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src/messages/textDocument_definition.cc
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src/messages/textDocument_did.cc
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src/messages/textDocument_foldingRange.cc
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src/messages/textDocument_formatting.cc
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src/messages/textDocument_document.cc
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src/messages/textDocument_hover.cc
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src/messages/textDocument_references.cc
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src/messages/textDocument_rename.cc
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src/messages/textDocument_signatureHelp.cc
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src/messages/workspace.cc
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)
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