256be56344
-- 00d42e3d5433aaf29c2ed293520b2ba178ae8bdb by Greg Falcon <gfalcon@google.com>: Import of CCTZ from GitHub. PiperOrigin-RevId: 238061818 -- 867a7ca318fac2991ea9a4107dbae3cc9fbf974a by Abseil Team <absl-team@google.com>: Added a IWYU export pragma when including a standard header for the purpose of aliasing its symbols. PiperOrigin-RevId: 238022277 -- 17047745058f2f151cd986ea9f649512542d3876 by Matt Armstrong <marmstrong@google.com>: Clarify the comment discouraging WrapUnique<T>(x) calls. PiperOrigin-RevId: 237873803 -- 3dcb2e4968243d33ca0ce53280c445df50f4a7ec by Samuel Benzaquen <sbenza@google.com>: Workaround clang bug https://bugs.llvm.org/show_bug.cgi?id=38289 PiperOrigin-RevId: 237873551 -- f348d2dc7087a990cbdfb95aa51fd7ff478ae40e by Samuel Benzaquen <sbenza@google.com>: Reduce minimum capacity to 1. This reduces memory usage for small tables. A flat_hash_set<int> of 1 element goes from 92 bytes to 24. A flat_hash_set<string> of 1 element goes from 512 bytes to 56. PiperOrigin-RevId: 237859811 -- 9c8125be5e4e5d22a7bb62bdec8c323338385c1b by Jon Cohen <cohenjon@google.com>: Bump to CMake 3.5. This is the oldest modern cmake being included by default in most popular OS distributions according to https://repology.org/project/cmake/versions. Specifically, Ubuntu LTS 16.04 uses cmake 3.5 (https://packages.ubuntu.com/xenial/cmake) PiperOrigin-RevId: 237859345 -- 07638d672e0a4dced986a62750cfd8318ed36ffa by Derek Mauro <dmauro@google.com>: Import of CCTZ from GitHub. PiperOrigin-RevId: 237714597 GitOrigin-RevId: 00d42e3d5433aaf29c2ed293520b2ba178ae8bdb Change-Id: I5faecc45add4a5a774d4f9baf06e5519091f2ccc
95 lines
2.4 KiB
CMake
95 lines
2.4 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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# https://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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# Most widely used distributions have cmake 3.5 or greater available as of March
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# 2019. A notable exception is RHEL-7 (CentOS7). You can install a current
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# version of CMake by first installing Extra Packages for Enterprise Linux
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# (https://fedoraproject.org/wiki/EPEL#Extra_Packages_for_Enterprise_Linux_.28EPEL.29)
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# and then issuing `yum install cmake3` on the command line.
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cmake_minimum_required(VERSION 3.5)
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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
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${CMAKE_CURRENT_LIST_DIR}/CMake
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${CMAKE_CURRENT_LIST_DIR}/absl/copts
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)
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include(GNUInstallDirs)
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include(AbseilHelpers)
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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 ${CMAKE_CURRENT_SOURCE_DIR})
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if("${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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