154 lines
5.2 KiB
CMake
154 lines
5.2 KiB
CMake
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# Minimum CMake required
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cmake_minimum_required(VERSION 2.8)
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# Project
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project(protobuf C CXX)
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# CMake policies
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cmake_policy(SET CMP0022 NEW)
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# Options
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option(protobuf_VERBOSE "Enable for verbose output" OFF)
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option(protobuf_BUILD_TESTS "Build tests" ON)
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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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option(protobuf_MSVC_STATIC_RUNTIME "Link static runtime libraries" ON)
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if (MSVC)
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set(protobuf_WITH_ZLIB_DEFAULT OFF)
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else (MSVC)
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set(protobuf_WITH_ZLIB_DEFAULT ON)
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endif (MSVC)
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option(protobuf_WITH_ZLIB "Build with zlib support" ${protobuf_WITH_ZLIB_DEFAULT})
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set(protobuf_DEBUG_POSTFIX "d"
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CACHE STRING "Default debug postfix")
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# Path to main configure script
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set(protobuf_CONFIGURE_SCRIPT "../configure.ac")
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# Parse configure script
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set(protobuf_AC_INIT_REGEX
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"^AC_INIT\\(\\[([^]]+)\\],\\[([^]]+)\\],\\[([^]]+)\\],\\[([^]]+)\\]\\)$")
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file(STRINGS "${protobuf_CONFIGURE_SCRIPT}" protobuf_AC_INIT_LINE
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LIMIT_COUNT 1 REGEX "^AC_INIT")
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# Description
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string(REGEX REPLACE "${protobuf_AC_INIT_REGEX}" "\\1"
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protobuf_DESCRIPTION "${protobuf_AC_INIT_LINE}")
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# Version
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string(REGEX REPLACE "${protobuf_AC_INIT_REGEX}" "\\2"
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protobuf_VERSION_STRING "${protobuf_AC_INIT_LINE}")
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# Contact
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string(REGEX REPLACE "${protobuf_AC_INIT_REGEX}" "\\3"
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protobuf_CONTACT "${protobuf_AC_INIT_LINE}")
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# Parse version tweaks
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set(protobuf_VERSION_REGEX "^([0-9]+)\\.([0-9]+)\\.([0-9]+).*$")
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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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# Package version
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set(protobuf_VERSION
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"${protobuf_VERSION_MAJOR}.${protobuf_VERSION_MINOR}.${protobuf_VERSION_PATCH}")
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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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add_definitions(-DGOOGLE_PROTOBUF_CMAKE_BUILD)
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find_package(Threads REQUIRED)
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if (CMAKE_USE_PTHREADS_INIT)
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add_definitions(-DHAVE_PTHREAD)
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endif (CMAKE_USE_PTHREADS_INIT)
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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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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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if (HAVE_ZLIB)
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add_definitions(-DHAVE_ZLIB)
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endif (HAVE_ZLIB)
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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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# 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 (protobuf_BUILD_SHARED_LIBS)
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if (MSVC)
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# Build with multiple processes
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add_definitions(/MP)
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add_definitions(/wd4244 /wd4267 /wd4018 /wd4355 /wd4800 /wd4251 /wd4996 /wd4146 /wd4305)
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# Allow big object
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add_definitions(/bigobj)
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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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configure_file(extract_includes.bat.in extract_includes.bat)
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endif (MSVC)
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get_filename_component(protobuf_source_dir ${protobuf_SOURCE_DIR} PATH)
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include_directories(
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${ZLIB_INCLUDE_DIRECTORIES}
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${protobuf_BINARY_DIR}
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${protobuf_source_dir}/src)
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if (MSVC)
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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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# 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(libprotobuf-lite.cmake)
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include(libprotobuf.cmake)
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include(libprotoc.cmake)
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include(protoc.cmake)
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if (protobuf_BUILD_TESTS)
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include(tests.cmake)
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endif (protobuf_BUILD_TESTS)
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include(install.cmake)
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