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#
# 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.
#
cmake_minimum_required(VERSION 2.8.12)
project(absl)
list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_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 /WX /wd4005 /wd4068 /wd4244 /wd4267 /wd4800)
add_definitions(/DNOMINMAX /DWIN32_LEAN_AND_MEAN=1 /D_CRT_SECURE_NO_WARNINGS /D_SCL_SECURE_NO_WARNINGS)
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} ${CMAKE_CXX_FLAGS}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_WARNING_VLA} ${CMAKE_CXX_FLAGS} ")
# -fexceptions
set(ABSL_EXCEPTIONS_FLAG "${CMAKE_CXX_EXCEPTIONS}")
# 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)
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