380 строки
14 KiB
CMake
380 строки
14 KiB
CMake
# Minimum CMake required. If available, accept the policy-controlled behavior up
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# to 3.26.
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cmake_minimum_required(VERSION 3.10...3.26)
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# Revert to old behavior for MSVC debug symbols.
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if(POLICY CMP0141)
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cmake_policy(SET CMP0141 OLD)
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endif()
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if(protobuf_VERBOSE)
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message(STATUS "Protocol Buffers Configuring...")
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endif()
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# Project
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project(protobuf C CXX)
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if(protobuf_DEPRECATED_CMAKE_SUBDIRECTORY_USAGE)
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if(CMAKE_PROJECT_NAME STREQUAL "protobuf")
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get_filename_component(CMAKE_SOURCE_DIR ${CMAKE_SOURCE_DIR} DIRECTORY)
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endif()
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get_filename_component(CMAKE_CURRENT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR} DIRECTORY)
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get_filename_component(PROJECT_SOURCE_DIR ${PROJECT_SOURCE_DIR} DIRECTORY)
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get_filename_component(protobuf_SOURCE_DIR ${protobuf_SOURCE_DIR} DIRECTORY)
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endif()
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# Options
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option(protobuf_INSTALL "Install protobuf binaries and files" ON)
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option(protobuf_BUILD_TESTS "Build tests" ON)
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option(protobuf_BUILD_CONFORMANCE "Build conformance tests" OFF)
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option(protobuf_BUILD_EXAMPLES "Build examples" OFF)
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option(protobuf_BUILD_PROTOBUF_BINARIES "Build protobuf libraries and protoc compiler" ON)
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option(protobuf_BUILD_PROTOC_BINARIES "Build libprotoc and protoc compiler" ON)
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option(protobuf_BUILD_LIBPROTOC "Build libprotoc" OFF)
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option(protobuf_BUILD_LIBUPB "Build libupb" ON)
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option(protobuf_DISABLE_RTTI "Remove runtime type information in the binaries" OFF)
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option(protobuf_TEST_XML_OUTDIR "Output directory for XML logs from tests." "")
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option(protobuf_ALLOW_CCACHE "Adjust build flags to allow for ccache support." OFF)
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# We support Unity (Jumbo) builds best-effort.
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option(protobuf_USE_UNITY_BUILD "Enable Unity (Jumbo) build for" OFF)
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if (BUILD_SHARED_LIBS)
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set(protobuf_BUILD_SHARED_LIBS_DEFAULT ON)
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else (BUILD_SHARED_LIBS)
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set(protobuf_BUILD_SHARED_LIBS_DEFAULT OFF)
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endif (BUILD_SHARED_LIBS)
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option(protobuf_BUILD_SHARED_LIBS "Build Shared Libraries" ${protobuf_BUILD_SHARED_LIBS_DEFAULT})
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include(CMakeDependentOption)
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cmake_dependent_option(protobuf_MSVC_STATIC_RUNTIME "Link static runtime libraries" ON
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"NOT protobuf_BUILD_SHARED_LIBS" OFF)
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set(protobuf_WITH_ZLIB_DEFAULT ON)
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option(protobuf_WITH_ZLIB "Build with zlib support" ${protobuf_WITH_ZLIB_DEFAULT})
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set(protobuf_DEBUG_POSTFIX "d"
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CACHE STRING "Default debug postfix")
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mark_as_advanced(protobuf_DEBUG_POSTFIX)
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if(WITH_PROTOC)
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set(protobuf_PROTOC_EXE protoc)
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set(protobuf_BUILD_PROTOC_BINARIES OFF)
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add_executable(protoc IMPORTED GLOBAL)
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add_executable(protobuf::protoc ALIAS protoc)
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set_property(TARGET protoc PROPERTY IMPORTED_LOCATION ${WITH_PROTOC})
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endif()
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# User options
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include(${protobuf_SOURCE_DIR}/cmake/protobuf-options.cmake)
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if (protobuf_BUILD_SHARED_LIBS)
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# This is necessary for linking in Abseil.
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set(CMAKE_POSITION_INDEPENDENT_CODE ON)
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# Build Abseil as shared libraries to avoid ODR violations.
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set(BUILD_SHARED_LIBS ON)
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# Output directory is correct by default for most build setups. However, when
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# building Protobuf as a DLL, it is important to have the DLL in the same
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# directory as the executable using it. Thus, we put all binaries in a single
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# /bin directory.
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if (MSVC)
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set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
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set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
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set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
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set(CMAKE_PDB_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
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endif ()
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endif ()
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# Version metadata
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set(protobuf_VERSION_STRING "5.29.0")
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set(protobuf_DESCRIPTION "Protocol Buffers")
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set(protobuf_CONTACT "protobuf@googlegroups.com")
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# Overrides for option dependencies
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if (protobuf_BUILD_PROTOC_BINARIES OR protobuf_BUILD_TESTS)
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set(protobuf_BUILD_LIBPROTOC ON)
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endif ()
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if (NOT protobuf_BUILD_PROTOBUF_BINARIES)
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set(protobuf_INSTALL OFF)
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endif()
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# Parse version tweaks
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set(protobuf_VERSION_REGEX "^([0-9]+)\\.([0-9]+)\\.([0-9]+)([-]rc[-]|\\.)?([0-9]*)$")
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string(REGEX REPLACE "${protobuf_VERSION_REGEX}" "\\1"
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protobuf_VERSION_MAJOR "${protobuf_VERSION_STRING}")
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string(REGEX REPLACE "${protobuf_VERSION_REGEX}" "\\2"
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protobuf_VERSION_MINOR "${protobuf_VERSION_STRING}")
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string(REGEX REPLACE "${protobuf_VERSION_REGEX}" "\\3"
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protobuf_VERSION_PATCH "${protobuf_VERSION_STRING}")
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string(REGEX REPLACE "${protobuf_VERSION_REGEX}" "\\5"
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protobuf_VERSION_PRERELEASE "${protobuf_VERSION_STRING}")
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message(STATUS "${protobuf_VERSION_PRERELEASE}")
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# Package version
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set(protobuf_VERSION
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"${protobuf_VERSION_MINOR}.${protobuf_VERSION_PATCH}")
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if(protobuf_VERSION_PRERELEASE)
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set(protobuf_VERSION "${protobuf_VERSION}.${protobuf_VERSION_PRERELEASE}")
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else()
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set(protobuf_VERSION "${protobuf_VERSION}.0")
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endif()
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message(STATUS "${protobuf_VERSION}")
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if(protobuf_VERBOSE)
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message(STATUS "Configuration script parsing status [")
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message(STATUS " Description : ${protobuf_DESCRIPTION}")
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message(STATUS " Version : ${protobuf_VERSION} (${protobuf_VERSION_STRING})")
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message(STATUS " Contact : ${protobuf_CONTACT}")
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message(STATUS "]")
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endif()
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file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/cmaketest.map
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"{
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global:
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main;
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local:
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*;
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};")
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# CheckLinkerFlag module available in CMake >=3.18.
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if(${CMAKE_VERSION} VERSION_GREATER 3.18 OR ${CMAKE_VERSION} VERSION_EQUAL 3.18)
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include(CheckLinkerFlag)
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check_linker_flag(CXX -Wl,--version-script=${CMAKE_CURRENT_BINARY_DIR}/cmaketest.map protobuf_HAVE_LD_VERSION_SCRIPT)
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else()
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include(CheckCXXSourceCompiles)
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set(OLD_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
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set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS} -Wl,--version-script=${CMAKE_CURRENT_BINARY_DIR}/cmaketest.map)
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check_cxx_source_compiles("
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int main() {
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return 0;
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}
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" protobuf_HAVE_LD_VERSION_SCRIPT)
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set(CMAKE_REQUIRED_FLAGS ${OLD_CMAKE_REQUIRED_FLAGS})
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endif()
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file(REMOVE ${CMAKE_CURRENT_BINARY_DIR}/cmaketest.map)
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find_package(Threads REQUIRED)
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# We can install dependencies from submodules if we're running
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# CMake v3.13 or newer.
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if(CMAKE_VERSION VERSION_LESS 3.13)
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set(_protobuf_INSTALL_SUPPORTED_FROM_MODULE OFF)
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else()
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set(_protobuf_INSTALL_SUPPORTED_FROM_MODULE ON)
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endif()
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set(_protobuf_FIND_ZLIB)
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if (protobuf_WITH_ZLIB)
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find_package(ZLIB)
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if (ZLIB_FOUND)
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set(HAVE_ZLIB 1)
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# FindZLIB module define ZLIB_INCLUDE_DIRS variable
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# Set ZLIB_INCLUDE_DIRECTORIES for compatible
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set(ZLIB_INCLUDE_DIRECTORIES ${ZLIB_INCLUDE_DIRECTORIES} ${ZLIB_INCLUDE_DIRS})
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# Using imported target if exists
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if (TARGET ZLIB::ZLIB)
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set(ZLIB_LIBRARIES ZLIB::ZLIB)
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set(_protobuf_FIND_ZLIB "if(NOT ZLIB_FOUND)\n find_package(ZLIB)\nendif()")
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endif (TARGET ZLIB::ZLIB)
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else (ZLIB_FOUND)
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set(HAVE_ZLIB 0)
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# Explicitly set these to empty (override NOT_FOUND) so cmake doesn't
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# complain when we use them later.
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set(ZLIB_INCLUDE_DIRECTORIES)
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set(ZLIB_LIBRARIES)
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endif (ZLIB_FOUND)
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endif (protobuf_WITH_ZLIB)
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# We need to link with libatomic on systems that do not have builtin atomics, or
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# don't have builtin support for 8 byte atomics
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set(protobuf_LINK_LIBATOMIC false)
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if (NOT MSVC)
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include(CheckCXXSourceCompiles)
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set(OLD_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
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set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS} -std=c++14)
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check_cxx_source_compiles("
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#include <atomic>
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int main() {
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return static_cast<int>(std::atomic<int64_t>{});
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}
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" protobuf_HAVE_BUILTIN_ATOMICS)
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if (NOT protobuf_HAVE_BUILTIN_ATOMICS)
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set(protobuf_LINK_LIBATOMIC true)
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endif (NOT protobuf_HAVE_BUILTIN_ATOMICS)
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set(CMAKE_REQUIRED_FLAGS ${OLD_CMAKE_REQUIRED_FLAGS})
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endif (NOT MSVC)
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if (protobuf_BUILD_SHARED_LIBS)
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set(protobuf_SHARED_OR_STATIC "SHARED")
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else (protobuf_BUILD_SHARED_LIBS)
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set(protobuf_SHARED_OR_STATIC "STATIC")
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# The CMAKE_<LANG>_FLAGS(_<BUILD_TYPE>)? is meant to be user controlled.
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# Prior to CMake 3.15, the MSVC runtime library was pushed into the same flags
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# making programmatic control difficult. Prefer the functionality in newer
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# CMake versions when available.
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if(${CMAKE_VERSION} VERSION_GREATER 3.15 OR ${CMAKE_VERSION} VERSION_EQUAL 3.15)
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if (protobuf_MSVC_STATIC_RUNTIME)
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set(CMAKE_MSVC_RUNTIME_LIBRARY MultiThreaded$<$<CONFIG:Debug>:Debug>)
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else()
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set(CMAKE_MSVC_RUNTIME_LIBRARY MultiThreaded$<$<CONFIG:Debug>:Debug>DLL)
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endif()
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else()
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# In case we are building static libraries, link also the runtime library statically
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# so that MSVCR*.DLL is not required at runtime.
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# https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
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# This is achieved by replacing msvc option /MD with /MT and /MDd with /MTd
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# http://www.cmake.org/Wiki/CMake_FAQ#How_can_I_build_my_MSVC_application_with_a_static_runtime.3F
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if (MSVC AND protobuf_MSVC_STATIC_RUNTIME)
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foreach(flag_var
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CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
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CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
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if(${flag_var} MATCHES "/MD")
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string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
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endif(${flag_var} MATCHES "/MD")
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endforeach(flag_var)
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endif (MSVC AND protobuf_MSVC_STATIC_RUNTIME)
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endif()
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endif (protobuf_BUILD_SHARED_LIBS)
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# Export all symbols on Windows when building shared libraries
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SET(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
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if (MSVC)
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string(REPLACE "/" "\\" PROTOBUF_SOURCE_WIN32_PATH ${protobuf_SOURCE_DIR})
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string(REPLACE "/" "\\" PROTOBUF_BINARY_WIN32_PATH ${protobuf_BINARY_DIR})
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string(REPLACE "." "," protobuf_RC_FILEVERSION "${protobuf_VERSION}")
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if (protobuf_ALLOW_CCACHE)
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# In order to support ccache, we need to remove the /Zi option because it
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# puts debug symbols into separate pdb files (which in incompatible with
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# ccache). This can be replaced with /Z7 to preserve debug symbols, which
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# embeds debug symbols into the object files instead of creating a separate
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# pdb file, which isn't currently supported by ccache. However, this bloats
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# the ccache size by about a factor of 2x, making it very expensive in CI.
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# Instead, we strip debug symbols to reduce this overhead.
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foreach(v
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CMAKE_C_FLAGS_DEBUG
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CMAKE_CXX_FLAGS_DEBUG
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CMAKE_C_FLAGS_RELWITHDEBINFO
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CMAKE_CXX_FLAGS_RELWITHDEBINFO
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)
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string(REGEX REPLACE "[-/]Z[iI7]" "/DEBUG:NONE" ${v} "${${v}}")
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endforeach()
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endif()
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# Suppress linker warnings about files with no symbols defined.
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string(APPEND CMAKE_STATIC_LINKER_FLAGS " /ignore:4221")
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# use English language (0x409) in resource compiler
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string(APPEND CMAKE_RC_FLAGS " -l0x409")
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# Generate the version.rc file used elsewhere.
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configure_file(${protobuf_SOURCE_DIR}/cmake/version.rc.in ${CMAKE_CURRENT_BINARY_DIR}/version.rc @ONLY)
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set(protobuf_version_rc_file ${CMAKE_CURRENT_BINARY_DIR}/version.rc)
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# Add the "lib" prefix for generated .lib outputs.
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set(LIB_PREFIX lib)
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else (MSVC)
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# No version.rc file.
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set(protobuf_version_rc_file)
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# When building with "make", "lib" prefix will be added automatically by
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# the build tool.
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set(LIB_PREFIX)
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endif (MSVC)
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include_directories(
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${ZLIB_INCLUDE_DIRECTORIES}
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${protobuf_BINARY_DIR}
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# Support #include-ing other top-level directories, i.e. upb_generator.
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${protobuf_SOURCE_DIR}
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${protobuf_BINARY_DIR}/src
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${protobuf_SOURCE_DIR}/src)
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set(protobuf_ABSL_PROVIDER "module" CACHE STRING "Provider of absl library")
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set_property(CACHE protobuf_ABSL_PROVIDER PROPERTY STRINGS "module" "package")
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set(protobuf_JSONCPP_PROVIDER "module" CACHE STRING "Provider of jsoncpp library")
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set_property(CACHE protobuf_JSONCPP_PROVIDER PROPERTY STRINGS "module" "package")
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if (protobuf_BUILD_TESTS)
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include(${protobuf_SOURCE_DIR}/cmake/gtest.cmake)
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endif (protobuf_BUILD_TESTS)
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include(${protobuf_SOURCE_DIR}/cmake/abseil-cpp.cmake)
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if (protobuf_BUILD_PROTOBUF_BINARIES)
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include(${protobuf_SOURCE_DIR}/cmake/utf8_range.cmake)
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include(${protobuf_SOURCE_DIR}/cmake/libprotobuf-lite.cmake)
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if (NOT DEFINED protobuf_LIB_PROTOBUF_LITE)
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set(protobuf_LIB_PROTOBUF_LITE libprotobuf-lite)
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endif ()
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include(${protobuf_SOURCE_DIR}/cmake/libprotobuf.cmake)
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if (NOT DEFINED protobuf_LIB_PROTOBUF)
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set(protobuf_LIB_PROTOBUF libprotobuf)
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endif ()
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if (protobuf_BUILD_LIBPROTOC)
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include(${protobuf_SOURCE_DIR}/cmake/libprotoc.cmake)
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if (NOT DEFINED protobuf_LIB_PROTOC)
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set(protobuf_LIB_PROTOC libprotoc)
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endif ()
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endif ()
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if (protobuf_BUILD_LIBUPB)
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include(${protobuf_SOURCE_DIR}/cmake/libupb.cmake)
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if (NOT DEFINED protobuf_LIB_UPB)
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set(protobuf_LIB_UPB libupb)
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endif ()
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include(${protobuf_SOURCE_DIR}/cmake/upb_generators.cmake)
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endif ()
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if (protobuf_BUILD_PROTOC_BINARIES)
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include(${protobuf_SOURCE_DIR}/cmake/protoc.cmake)
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if (NOT DEFINED protobuf_PROTOC_EXE)
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set(protobuf_PROTOC_EXE protoc)
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endif ()
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endif ()
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else ()
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find_package(Protobuf NO_MODULE)
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if (Protobuf_FOUND)
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set(protobuf_PROTOC_EXE protobuf::protoc)
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set(protobuf_LIB_PROTOC protobuf::libprotoc)
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set(protobuf_LIB_PROTOBUF protobuf::libprotobuf)
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set(protobuf_LIB_PROTOBUF_LITE protobuf::libprotobuf-lite)
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set(protobuf_LIB_UPB protobuf::libupb)
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message(STATUS "CMake installation of Protobuf found.")
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endif ()
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endif ()
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# Ensure we have a protoc executable and protobuf libraries if we need one
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if (protobuf_BUILD_TESTS OR protobuf_BUILD_CONFORMANCE OR protobuf_BUILD_EXAMPLES)
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if (NOT DEFINED protobuf_PROTOC_EXE)
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find_program(protobuf_PROTOC_EXE protoc REQUIRED)
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message(STATUS "Found system ${protobuf_PROTOC_EXE}.")
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endif ()
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if(protobuf_VERBOSE)
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message(STATUS "Using protoc : ${protobuf_PROTOC_EXE}")
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message(STATUS "Using libprotobuf : ${protobuf_LIB_PROTOBUF}")
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message(STATUS "Using libprotobuf-lite : ${protobuf_LIB_PROTOBUF_LITE}")
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message(STATUS "Using libprotoc : ${protobuf_LIB_PROTOC}")
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message(STATUS "Using libupb : ${protobuf_LIB_UPB}")
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endif(protobuf_VERBOSE)
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endif ()
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if (protobuf_BUILD_TESTS)
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enable_testing()
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include(${protobuf_SOURCE_DIR}/cmake/tests.cmake)
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endif (protobuf_BUILD_TESTS)
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if (protobuf_BUILD_CONFORMANCE)
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include(${protobuf_SOURCE_DIR}/cmake/conformance.cmake)
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endif (protobuf_BUILD_CONFORMANCE)
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if (protobuf_INSTALL)
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include(${protobuf_SOURCE_DIR}/cmake/install.cmake)
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endif (protobuf_INSTALL)
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if (protobuf_BUILD_EXAMPLES)
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include(${protobuf_SOURCE_DIR}/cmake/examples.cmake)
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endif (protobuf_BUILD_EXAMPLES)
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if(protobuf_VERBOSE)
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message(STATUS "Protocol Buffers Configuring done")
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endif(protobuf_VERBOSE)
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