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@ -4,39 +4,65 @@ 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(BUILD_TESTING "Build tests" ON) |
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option(BUILD_SHARED_LIBS "Build Shared Libraries" OFF) |
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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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option(ZLIB "Build with zlib support" OFF) |
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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" ${protobuf_WITH_ZLIB_DEFAULT}) |
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set(protobuf_DEBUG_POSTFIX "d" |
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CACHE STRING "Default debug postfix") |
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# Path to main configure script |
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set(protobuf_CONFIGURE_SCRIPT "../configure.ac") |
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# Parse version from configure script |
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file(STRINGS "${protobuf_CONFIGURE_SCRIPT}" protobuf_VERSION_LINE |
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LIMIT_COUNT 1 |
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REGEX "^AC_INIT") |
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# Replace special characters |
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string(REPLACE "(" "_" protobuf_VERSION_LINE ${protobuf_VERSION_LINE}) |
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string(REPLACE ")" "_" protobuf_VERSION_LINE ${protobuf_VERSION_LINE}) |
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string(REPLACE "[" "_" protobuf_VERSION_LINE ${protobuf_VERSION_LINE}) |
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string(REPLACE "]" "_" protobuf_VERSION_LINE ${protobuf_VERSION_LINE}) |
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# Parse version string |
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string(REGEX REPLACE "^AC_INIT__Protocol Buffers_,_([^_]+).*$" "\\1" |
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protobuf_VERSION_STRING "${protobuf_VERSION_LINE}") |
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# Parse configure script |
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set(protobuf_AC_INIT_REGEX |
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"^AC_INIT\\(\\[([^]]+)\\],\\[([^]]+)\\],\\[([^]]+)\\],\\[([^]]+)\\]\\)$") |
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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 "${protobuf_AC_INIT_LINE}") |
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# Parse version tweaks |
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string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+).*$" "\\1" |
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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 "${protobuf_VERSION_STRING}") |
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string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+).*$" "\\2" |
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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 "^([0-9]+)\\.([0-9]+)\\.([0-9]+).*$" "\\3" |
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string(REGEX REPLACE "${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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@ -44,18 +70,17 @@ 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 (MSVC) |
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if (ZLIB) |
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set(HAVE_ZLIB 1) |
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find_path(ZLIB_INCLUDE_DIRECTORIES zlib.h ${protobuf_SOURCE_DIR}) |
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find_library(ZLIB_LIBRARIES zdll ${protobuf_SOURCE_DIR}) |
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else (ZLIB) |
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set(HAVE_ZLIB 0) |
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endif (ZLIB) |
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else (MSVC) |
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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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@ -63,21 +88,22 @@ else (MSVC) |
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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 (MSVC) |
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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 (MSVC) |
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if (BUILD_SHARED_LIBS) |
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add_definitions(-DPROTOBUF_USE_DLLS) |
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else (BUILD_SHARED_LIBS) |
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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 (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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@ -85,11 +111,11 @@ if (MSVC) |
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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 (BUILD_SHARED_LIBS) |
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add_definitions(/wd4244 /wd4267 /wd4018 /wd4355 /wd4800 /wd4251 /wd4996 /wd4146 /wd4305) |
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endif (MSVC) |
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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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add_definitions(/wd4244 /wd4267 /wd4018 /wd4355 /wd4800 /wd4251 /wd4996 /wd4146 /wd4305) |
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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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@ -116,8 +142,8 @@ include(libprotobuf.cmake) |
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include(libprotoc.cmake) |
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include(protoc.cmake) |
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if (BUILD_TESTING) |
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if (protobuf_BUILD_TESTS) |
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include(tests.cmake) |
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endif (BUILD_TESTING) |
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endif (protobuf_BUILD_TESTS) |
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include(install.cmake) |
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Feng Xiao
9 years ago