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