| # |
| # Copyright 2017 The Abseil Authors. |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # |
| |
| # We require 3.0 for modern, target-based CMake. We require 3.1 for the use of |
| # CXX_STANDARD in our targets. |
| cmake_minimum_required(VERSION 3.1) |
| |
| # Compiler id for Apple Clang is now AppleClang. |
| if (POLICY CMP0025) |
| cmake_policy(SET CMP0025 NEW) |
| endif() |
| |
| project(absl) |
| |
| list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_LIST_DIR}/CMake) |
| |
| include(GNUInstallDirs) |
| include(AbseilHelpers) |
| |
| |
| # config options |
| if (MSVC) |
| # /wd4005 macro-redefinition |
| # /wd4068 unknown pragma |
| # /wd4244 conversion from 'type1' to 'type2' |
| # /wd4267 conversion from 'size_t' to 'type2' |
| # /wd4800 force value to bool 'true' or 'false' (performance warning) |
| add_compile_options(/W3 /wd4005 /wd4068 /wd4244 /wd4267 /wd4800) |
| # /D_ENABLE_EXTENDED_ALIGNED_STORAGE Introduced in VS 2017 15.8, before the |
| # member type would non-conformingly have an alignment of only alignof(max_align_t). |
| add_definitions( |
| /DNOMINMAX |
| /DWIN32_LEAN_AND_MEAN=1 |
| /D_CRT_SECURE_NO_WARNINGS |
| /D_SCL_SECURE_NO_WARNINGS |
| /D_ENABLE_EXTENDED_ALIGNED_STORAGE |
| ) |
| else() |
| set(ABSL_STD_CXX_FLAG "-std=c++11" CACHE STRING "c++ std flag (default: c++11)") |
| endif() |
| |
| |
| |
| ## |
| ## Using absl targets |
| ## |
| ## all public absl targets are |
| ## exported with the absl:: prefix |
| ## |
| ## e.g absl::base absl::synchronization absl::strings .... |
| ## |
| ## DO NOT rely on the internal targets outside of the prefix |
| |
| |
| # include current path |
| list(APPEND ABSL_COMMON_INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}) |
| |
| # -std=X |
| set(CMAKE_CXX_FLAGS "${ABSL_STD_CXX_FLAG} ${CMAKE_CXX_FLAGS}") |
| |
| # -fexceptions |
| set(ABSL_EXCEPTIONS_FLAG "${CMAKE_CXX_EXCEPTIONS}") |
| |
| if("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang") |
| set(ABSL_USING_CLANG ON) |
| else() |
| set(ABSL_USING_CLANG OFF) |
| endif() |
| |
| # find dependencies |
| ## pthread |
| find_package(Threads REQUIRED) |
| |
| option(ABSL_USE_GOOGLETEST_HEAD |
| "If ON, abseil will download HEAD from googletest at config time." OFF) |
| |
| option(ABSL_RUN_TESTS "If ON, Abseil tests will be run." OFF) |
| |
| if(${ABSL_RUN_TESTS}) |
| # enable CTest. This will set BUILD_TESTING to ON unless otherwise specified |
| # on the command line |
| include(CTest) |
| enable_testing() |
| endif() |
| |
| ## check targets |
| if(BUILD_TESTING) |
| |
| if(${ABSL_USE_GOOGLETEST_HEAD}) |
| include(CMake/DownloadGTest.cmake) |
| endif() |
| |
| check_target(gtest) |
| check_target(gtest_main) |
| check_target(gmock) |
| |
| list(APPEND ABSL_TEST_COMMON_LIBRARIES |
| gtest_main |
| gtest |
| gmock |
| ${CMAKE_THREAD_LIBS_INIT} |
| ) |
| endif() |
| |
| add_subdirectory(absl) |