chore(3p/abseil_cpp): unvendor abseil_cpp r/3786

we weren't actually using these sources anymore, okay?

Change-Id: If701571d9716de308d3512e1eb22c35db0877a66
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5248
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>
Autosubmit: tazjin <tazjin@tvl.su>

1 files changed, 0 insertions, 714 deletions

diff --git a/third_party/abseil_cpp/absl/base/config.h b/third_party/abseil_cpp/absl/base/config.h
deleted file mode 100644
index 3f7f32b9e6e3..000000000000
--- a/third_party/abseil_cpp/absl/base/config.h
+++ /dev/null
@@ -1,714 +0,0 @@
-//
-// 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
-//
-//      https://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.
-//
-// -----------------------------------------------------------------------------
-// File: config.h
-// -----------------------------------------------------------------------------
-//
-// This header file defines a set of macros for checking the presence of
-// important compiler and platform features. Such macros can be used to
-// produce portable code by parameterizing compilation based on the presence or
-// lack of a given feature.
-//
-// We define a "feature" as some interface we wish to program to: for example,
-// a library function or system call. A value of `1` indicates support for
-// that feature; any other value indicates the feature support is undefined.
-//
-// Example:
-//
-// Suppose a programmer wants to write a program that uses the 'mmap()' system
-// call. The Abseil macro for that feature (`ABSL_HAVE_MMAP`) allows you to
-// selectively include the `mmap.h` header and bracket code using that feature
-// in the macro:
-//
-//   #include "absl/base/config.h"
-//
-//   #ifdef ABSL_HAVE_MMAP
-//   #include "sys/mman.h"
-//   #endif  //ABSL_HAVE_MMAP
-//
-//   ...
-//   #ifdef ABSL_HAVE_MMAP
-//   void *ptr = mmap(...);
-//   ...
-//   #endif  // ABSL_HAVE_MMAP
-
-#ifndef ABSL_BASE_CONFIG_H_
-#define ABSL_BASE_CONFIG_H_
-
-// Included for the __GLIBC__ macro (or similar macros on other systems).
-#include <limits.h>
-
-#ifdef __cplusplus
-// Included for __GLIBCXX__, _LIBCPP_VERSION
-#include <cstddef>
-#endif  // __cplusplus
-
-#if defined(__APPLE__)
-// Included for TARGET_OS_IPHONE, __IPHONE_OS_VERSION_MIN_REQUIRED,
-// __IPHONE_8_0.
-#include <Availability.h>
-#include <TargetConditionals.h>
-#endif
-
-#include "absl/base/options.h"
-#include "absl/base/policy_checks.h"
-
-// Helper macro to convert a CPP variable to a string literal.
-#define ABSL_INTERNAL_DO_TOKEN_STR(x) #x
-#define ABSL_INTERNAL_TOKEN_STR(x) ABSL_INTERNAL_DO_TOKEN_STR(x)
-
-// -----------------------------------------------------------------------------
-// Abseil namespace annotations
-// -----------------------------------------------------------------------------
-
-// ABSL_NAMESPACE_BEGIN/ABSL_NAMESPACE_END
-//
-// An annotation placed at the beginning/end of each `namespace absl` scope.
-// This is used to inject an inline namespace.
-//
-// The proper way to write Abseil code in the `absl` namespace is:
-//
-// namespace absl {
-// ABSL_NAMESPACE_BEGIN
-//
-// void Foo();  // absl::Foo().
-//
-// ABSL_NAMESPACE_END
-// }  // namespace absl
-//
-// Users of Abseil should not use these macros, because users of Abseil should
-// not write `namespace absl {` in their own code for any reason.  (Abseil does
-// not support forward declarations of its own types, nor does it support
-// user-provided specialization of Abseil templates.  Code that violates these
-// rules may be broken without warning.)
-#if !defined(ABSL_OPTION_USE_INLINE_NAMESPACE) || \
-    !defined(ABSL_OPTION_INLINE_NAMESPACE_NAME)
-#error options.h is misconfigured.
-#endif
-
-// Check that ABSL_OPTION_INLINE_NAMESPACE_NAME is neither "head" nor ""
-#if defined(__cplusplus) && ABSL_OPTION_USE_INLINE_NAMESPACE == 1
-
-#define ABSL_INTERNAL_INLINE_NAMESPACE_STR \
-  ABSL_INTERNAL_TOKEN_STR(ABSL_OPTION_INLINE_NAMESPACE_NAME)
-
-static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != '\0',
-              "options.h misconfigured: ABSL_OPTION_INLINE_NAMESPACE_NAME must "
-              "not be empty.");
-static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' ||
-                  ABSL_INTERNAL_INLINE_NAMESPACE_STR[1] != 'e' ||
-                  ABSL_INTERNAL_INLINE_NAMESPACE_STR[2] != 'a' ||
-                  ABSL_INTERNAL_INLINE_NAMESPACE_STR[3] != 'd' ||
-                  ABSL_INTERNAL_INLINE_NAMESPACE_STR[4] != '\0',
-              "options.h misconfigured: ABSL_OPTION_INLINE_NAMESPACE_NAME must "
-              "be changed to a new, unique identifier name.");
-
-#endif
-
-#if ABSL_OPTION_USE_INLINE_NAMESPACE == 0
-#define ABSL_NAMESPACE_BEGIN
-#define ABSL_NAMESPACE_END
-#elif ABSL_OPTION_USE_INLINE_NAMESPACE == 1
-#define ABSL_NAMESPACE_BEGIN \
-  inline namespace ABSL_OPTION_INLINE_NAMESPACE_NAME {
-#define ABSL_NAMESPACE_END }
-#else
-#error options.h is misconfigured.
-#endif
-
-// -----------------------------------------------------------------------------
-// Compiler Feature Checks
-// -----------------------------------------------------------------------------
-
-// ABSL_HAVE_BUILTIN()
-//
-// Checks whether the compiler supports a Clang Feature Checking Macro, and if
-// so, checks whether it supports the provided builtin function "x" where x
-// is one of the functions noted in
-// https://clang.llvm.org/docs/LanguageExtensions.html
-//
-// Note: Use this macro to avoid an extra level of #ifdef __has_builtin check.
-// http://releases.llvm.org/3.3/tools/clang/docs/LanguageExtensions.html
-#ifdef __has_builtin
-#define ABSL_HAVE_BUILTIN(x) __has_builtin(x)
-#else
-#define ABSL_HAVE_BUILTIN(x) 0
-#endif
-
-#if defined(__is_identifier)
-#define ABSL_INTERNAL_HAS_KEYWORD(x) !(__is_identifier(x))
-#else
-#define ABSL_INTERNAL_HAS_KEYWORD(x) 0
-#endif
-
-#ifdef __has_feature
-#define ABSL_HAVE_FEATURE(f) __has_feature(f)
-#else
-#define ABSL_HAVE_FEATURE(f) 0
-#endif
-
-// ABSL_HAVE_TLS is defined to 1 when __thread should be supported.
-// We assume __thread is supported on Linux when compiled with Clang or compiled
-// against libstdc++ with _GLIBCXX_HAVE_TLS defined.
-#ifdef ABSL_HAVE_TLS
-#error ABSL_HAVE_TLS cannot be directly set
-#elif defined(__linux__) && (defined(__clang__) || defined(_GLIBCXX_HAVE_TLS))
-#define ABSL_HAVE_TLS 1
-#endif
-
-// ABSL_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE
-//
-// Checks whether `std::is_trivially_destructible<T>` is supported.
-//
-// Notes: All supported compilers using libc++ support this feature, as does
-// gcc >= 4.8.1 using libstdc++, and Visual Studio.
-#ifdef ABSL_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE
-#error ABSL_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE cannot be directly set
-#elif defined(_LIBCPP_VERSION) ||                                        \
-    (!defined(__clang__) && defined(__GNUC__) && defined(__GLIBCXX__) && \
-     (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8))) ||        \
-    defined(_MSC_VER)
-#define ABSL_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE 1
-#endif
-
-// ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE
-//
-// Checks whether `std::is_trivially_default_constructible<T>` and
-// `std::is_trivially_copy_constructible<T>` are supported.
-
-// ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE
-//
-// Checks whether `std::is_trivially_copy_assignable<T>` is supported.
-
-// Notes: Clang with libc++ supports these features, as does gcc >= 5.1 with
-// either libc++ or libstdc++, and Visual Studio (but not NVCC).
-#if defined(ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE)
-#error ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE cannot be directly set
-#elif defined(ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE)
-#error ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE cannot directly set
-#elif (defined(__clang__) && defined(_LIBCPP_VERSION)) ||        \
-    (!defined(__clang__) && defined(__GNUC__) &&                 \
-     (__GNUC__ > 7 || (__GNUC__ == 7 && __GNUC_MINOR__ >= 4)) && \
-     (defined(_LIBCPP_VERSION) || defined(__GLIBCXX__))) ||      \
-    (defined(_MSC_VER) && !defined(__NVCC__))
-#define ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE 1
-#define ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE 1
-#endif
-
-// ABSL_HAVE_SOURCE_LOCATION_CURRENT
-//
-// Indicates whether `absl::SourceLocation::current()` will return useful
-// information in some contexts.
-#ifndef ABSL_HAVE_SOURCE_LOCATION_CURRENT
-#if ABSL_INTERNAL_HAS_KEYWORD(__builtin_LINE) && \
-    ABSL_INTERNAL_HAS_KEYWORD(__builtin_FILE)
-#define ABSL_HAVE_SOURCE_LOCATION_CURRENT 1
-#endif
-#endif
-
-// ABSL_HAVE_THREAD_LOCAL
-//
-// Checks whether C++11's `thread_local` storage duration specifier is
-// supported.
-#ifdef ABSL_HAVE_THREAD_LOCAL
-#error ABSL_HAVE_THREAD_LOCAL cannot be directly set
-#elif defined(__APPLE__)
-// Notes:
-// * Xcode's clang did not support `thread_local` until version 8, and
-//   even then not for all iOS < 9.0.
-// * Xcode 9.3 started disallowing `thread_local` for 32-bit iOS simulator
-//   targeting iOS 9.x.
-// * Xcode 10 moves the deployment target check for iOS < 9.0 to link time
-//   making ABSL_HAVE_FEATURE unreliable there.
-//
-#if ABSL_HAVE_FEATURE(cxx_thread_local) && \
-    !(TARGET_OS_IPHONE && __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_9_0)
-#define ABSL_HAVE_THREAD_LOCAL 1
-#endif
-#else  // !defined(__APPLE__)
-#define ABSL_HAVE_THREAD_LOCAL 1
-#endif
-
-// There are platforms for which TLS should not be used even though the compiler
-// makes it seem like it's supported (Android NDK < r12b for example).
-// This is primarily because of linker problems and toolchain misconfiguration:
-// Abseil does not intend to support this indefinitely. Currently, the newest
-// toolchain that we intend to support that requires this behavior is the
-// r11 NDK - allowing for a 5 year support window on that means this option
-// is likely to be removed around June of 2021.
-// TLS isn't supported until NDK r12b per
-// https://developer.android.com/ndk/downloads/revision_history.html
-// Since NDK r16, `__NDK_MAJOR__` and `__NDK_MINOR__` are defined in
-// <android/ndk-version.h>. For NDK < r16, users should define these macros,
-// e.g. `-D__NDK_MAJOR__=11 -D__NKD_MINOR__=0` for NDK r11.
-#if defined(__ANDROID__) && defined(__clang__)
-#if __has_include(<android/ndk-version.h>)
-#include <android/ndk-version.h>
-#endif  // __has_include(<android/ndk-version.h>)
-#if defined(__ANDROID__) && defined(__clang__) && defined(__NDK_MAJOR__) && \
-    defined(__NDK_MINOR__) &&                                               \
-    ((__NDK_MAJOR__ < 12) || ((__NDK_MAJOR__ == 12) && (__NDK_MINOR__ < 1)))
-#undef ABSL_HAVE_TLS
-#undef ABSL_HAVE_THREAD_LOCAL
-#endif
-#endif  // defined(__ANDROID__) && defined(__clang__)
-
-// ABSL_HAVE_INTRINSIC_INT128
-//
-// Checks whether the __int128 compiler extension for a 128-bit integral type is
-// supported.
-//
-// Note: __SIZEOF_INT128__ is defined by Clang and GCC when __int128 is
-// supported, but we avoid using it in certain cases:
-// * On Clang:
-//   * Building using Clang for Windows, where the Clang runtime library has
-//     128-bit support only on LP64 architectures, but Windows is LLP64.
-// * On Nvidia's nvcc:
-//   * nvcc also defines __GNUC__ and __SIZEOF_INT128__, but not all versions
-//     actually support __int128.
-#ifdef ABSL_HAVE_INTRINSIC_INT128
-#error ABSL_HAVE_INTRINSIC_INT128 cannot be directly set
-#elif defined(__SIZEOF_INT128__)
-#if (defined(__clang__) && !defined(_WIN32)) || \
-    (defined(__CUDACC__) && __CUDACC_VER_MAJOR__ >= 9) ||                \
-    (defined(__GNUC__) && !defined(__clang__) && !defined(__CUDACC__))
-#define ABSL_HAVE_INTRINSIC_INT128 1
-#elif defined(__CUDACC__)
-// __CUDACC_VER__ is a full version number before CUDA 9, and is defined to a
-// string explaining that it has been removed starting with CUDA 9. We use
-// nested #ifs because there is no short-circuiting in the preprocessor.
-// NOTE: `__CUDACC__` could be undefined while `__CUDACC_VER__` is defined.
-#if __CUDACC_VER__ >= 70000
-#define ABSL_HAVE_INTRINSIC_INT128 1
-#endif  // __CUDACC_VER__ >= 70000
-#endif  // defined(__CUDACC__)
-#endif  // ABSL_HAVE_INTRINSIC_INT128
-
-// ABSL_HAVE_EXCEPTIONS
-//
-// Checks whether the compiler both supports and enables exceptions. Many
-// compilers support a "no exceptions" mode that disables exceptions.
-//
-// Generally, when ABSL_HAVE_EXCEPTIONS is not defined:
-//
-// * Code using `throw` and `try` may not compile.
-// * The `noexcept` specifier will still compile and behave as normal.
-// * The `noexcept` operator may still return `false`.
-//
-// For further details, consult the compiler's documentation.
-#ifdef ABSL_HAVE_EXCEPTIONS
-#error ABSL_HAVE_EXCEPTIONS cannot be directly set.
-
-#elif defined(__clang__)
-
-#if __clang_major__ > 3 || (__clang_major__ == 3 && __clang_minor__ >= 6)
-// Clang >= 3.6
-#if ABSL_HAVE_FEATURE(cxx_exceptions)
-#define ABSL_HAVE_EXCEPTIONS 1
-#endif  // ABSL_HAVE_FEATURE(cxx_exceptions)
-#else
-// Clang < 3.6
-// http://releases.llvm.org/3.6.0/tools/clang/docs/ReleaseNotes.html#the-exceptions-macro
-#if defined(__EXCEPTIONS) && ABSL_HAVE_FEATURE(cxx_exceptions)
-#define ABSL_HAVE_EXCEPTIONS 1
-#endif  // defined(__EXCEPTIONS) && ABSL_HAVE_FEATURE(cxx_exceptions)
-#endif  // __clang_major__ > 3 || (__clang_major__ == 3 && __clang_minor__ >= 6)
-
-// Handle remaining special cases and default to exceptions being supported.
-#elif !(defined(__GNUC__) && (__GNUC__ < 5) && !defined(__EXCEPTIONS)) &&    \
-    !(defined(__GNUC__) && (__GNUC__ >= 5) && !defined(__cpp_exceptions)) && \
-    !(defined(_MSC_VER) && !defined(_CPPUNWIND))
-#define ABSL_HAVE_EXCEPTIONS 1
-#endif
-
-// -----------------------------------------------------------------------------
-// Platform Feature Checks
-// -----------------------------------------------------------------------------
-
-// Currently supported operating systems and associated preprocessor
-// symbols:
-//
-//   Linux and Linux-derived           __linux__
-//   Android                           __ANDROID__ (implies __linux__)
-//   Linux (non-Android)               __linux__ && !__ANDROID__
-//   Darwin (macOS and iOS)            __APPLE__
-//   Akaros (http://akaros.org)        __ros__
-//   Windows                           _WIN32
-//   NaCL                              __native_client__
-//   AsmJS                             __asmjs__
-//   WebAssembly                       __wasm__
-//   Fuchsia                           __Fuchsia__
-//
-// Note that since Android defines both __ANDROID__ and __linux__, one
-// may probe for either Linux or Android by simply testing for __linux__.
-
-// ABSL_HAVE_MMAP
-//
-// Checks whether the platform has an mmap(2) implementation as defined in
-// POSIX.1-2001.
-#ifdef ABSL_HAVE_MMAP
-#error ABSL_HAVE_MMAP cannot be directly set
-#elif defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) ||   \
-    defined(__ros__) || defined(__native_client__) || defined(__asmjs__) || \
-    defined(__wasm__) || defined(__Fuchsia__) || defined(__sun) || \
-    defined(__ASYLO__) || defined(__myriad2__)
-#define ABSL_HAVE_MMAP 1
-#endif
-
-// ABSL_HAVE_PTHREAD_GETSCHEDPARAM
-//
-// Checks whether the platform implements the pthread_(get|set)schedparam(3)
-// functions as defined in POSIX.1-2001.
-#ifdef ABSL_HAVE_PTHREAD_GETSCHEDPARAM
-#error ABSL_HAVE_PTHREAD_GETSCHEDPARAM cannot be directly set
-#elif defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || \
-    defined(__ros__)
-#define ABSL_HAVE_PTHREAD_GETSCHEDPARAM 1
-#endif
-
-// ABSL_HAVE_SCHED_YIELD
-//
-// Checks whether the platform implements sched_yield(2) as defined in
-// POSIX.1-2001.
-#ifdef ABSL_HAVE_SCHED_YIELD
-#error ABSL_HAVE_SCHED_YIELD cannot be directly set
-#elif defined(__linux__) || defined(__ros__) || defined(__native_client__)
-#define ABSL_HAVE_SCHED_YIELD 1
-#endif
-
-// ABSL_HAVE_SEMAPHORE_H
-//
-// Checks whether the platform supports the <semaphore.h> header and sem_init(3)
-// family of functions as standardized in POSIX.1-2001.
-//
-// Note: While Apple provides <semaphore.h> for both iOS and macOS, it is
-// explicitly deprecated and will cause build failures if enabled for those
-// platforms.  We side-step the issue by not defining it here for Apple
-// platforms.
-#ifdef ABSL_HAVE_SEMAPHORE_H
-#error ABSL_HAVE_SEMAPHORE_H cannot be directly set
-#elif defined(__linux__) || defined(__ros__)
-#define ABSL_HAVE_SEMAPHORE_H 1
-#endif
-
-// ABSL_HAVE_ALARM
-//
-// Checks whether the platform supports the <signal.h> header and alarm(2)
-// function as standardized in POSIX.1-2001.
-#ifdef ABSL_HAVE_ALARM
-#error ABSL_HAVE_ALARM cannot be directly set
-#elif defined(__GOOGLE_GRTE_VERSION__)
-// feature tests for Google's GRTE
-#define ABSL_HAVE_ALARM 1
-#elif defined(__GLIBC__)
-// feature test for glibc
-#define ABSL_HAVE_ALARM 1
-#elif defined(_MSC_VER)
-// feature tests for Microsoft's library
-#elif defined(__MINGW32__)
-// mingw32 doesn't provide alarm(2):
-// https://osdn.net/projects/mingw/scm/git/mingw-org-wsl/blobs/5.2-trunk/mingwrt/include/unistd.h
-// mingw-w64 provides a no-op implementation:
-// https://sourceforge.net/p/mingw-w64/mingw-w64/ci/master/tree/mingw-w64-crt/misc/alarm.c
-#elif defined(__EMSCRIPTEN__)
-// emscripten doesn't support signals
-#elif defined(__Fuchsia__)
-// Signals don't exist on fuchsia.
-#elif defined(__native_client__)
-#else
-// other standard libraries
-#define ABSL_HAVE_ALARM 1
-#endif
-
-// ABSL_IS_LITTLE_ENDIAN
-// ABSL_IS_BIG_ENDIAN
-//
-// Checks the endianness of the platform.
-//
-// Notes: uses the built in endian macros provided by GCC (since 4.6) and
-// Clang (since 3.2); see
-// https://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html.
-// Otherwise, if _WIN32, assume little endian. Otherwise, bail with an error.
-#if defined(ABSL_IS_BIG_ENDIAN)
-#error "ABSL_IS_BIG_ENDIAN cannot be directly set."
-#endif
-#if defined(ABSL_IS_LITTLE_ENDIAN)
-#error "ABSL_IS_LITTLE_ENDIAN cannot be directly set."
-#endif
-
-#if (defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && \
-     __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
-#define ABSL_IS_LITTLE_ENDIAN 1
-#elif defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && \
-    __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
-#define ABSL_IS_BIG_ENDIAN 1
-#elif defined(_WIN32)
-#define ABSL_IS_LITTLE_ENDIAN 1
-#else
-#error "absl endian detection needs to be set up for your compiler"
-#endif
-
-// macOS 10.13 and iOS 10.11 don't let you use <any>, <optional>, or <variant>
-// even though the headers exist and are publicly noted to work.  See
-// https://github.com/abseil/abseil-cpp/issues/207 and
-// https://developer.apple.com/documentation/xcode_release_notes/xcode_10_release_notes
-// libc++ spells out the availability requirements in the file
-// llvm-project/libcxx/include/__config via the #define
-// _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS.
-#if defined(__APPLE__) && defined(_LIBCPP_VERSION) && \
-  ((defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && \
-   __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 101400) || \
-  (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && \
-   __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ < 120000) || \
-  (defined(__ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__) && \
-   __ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__ < 50000) || \
-  (defined(__ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__) && \
-   __ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__ < 120000))
-#define ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE 1
-#else
-#define ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE 0
-#endif
-
-// ABSL_HAVE_STD_ANY
-//
-// Checks whether C++17 std::any is available by checking whether <any> exists.
-#ifdef ABSL_HAVE_STD_ANY
-#error "ABSL_HAVE_STD_ANY cannot be directly set."
-#endif
-
-#ifdef __has_include
-#if __has_include(<any>) && __cplusplus >= 201703L && \
-    !ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE
-#define ABSL_HAVE_STD_ANY 1
-#endif
-#endif
-
-// ABSL_HAVE_STD_OPTIONAL
-//
-// Checks whether C++17 std::optional is available.
-#ifdef ABSL_HAVE_STD_OPTIONAL
-#error "ABSL_HAVE_STD_OPTIONAL cannot be directly set."
-#endif
-
-#ifdef __has_include
-#if __has_include(<optional>) && __cplusplus >= 201703L && \
-    !ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE
-#define ABSL_HAVE_STD_OPTIONAL 1
-#endif
-#endif
-
-// ABSL_HAVE_STD_VARIANT
-//
-// Checks whether C++17 std::variant is available.
-#ifdef ABSL_HAVE_STD_VARIANT
-#error "ABSL_HAVE_STD_VARIANT cannot be directly set."
-#endif
-
-#ifdef __has_include
-#if __has_include(<variant>) && __cplusplus >= 201703L && \
-    !ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE
-#define ABSL_HAVE_STD_VARIANT 1
-#endif
-#endif
-
-// ABSL_HAVE_STD_STRING_VIEW
-//
-// Checks whether C++17 std::string_view is available.
-#ifdef ABSL_HAVE_STD_STRING_VIEW
-#error "ABSL_HAVE_STD_STRING_VIEW cannot be directly set."
-#endif
-
-#ifdef __has_include
-#if __has_include(<string_view>) && __cplusplus >= 201703L
-#define ABSL_HAVE_STD_STRING_VIEW 1
-#endif
-#endif
-
-// For MSVC, `__has_include` is supported in VS 2017 15.3, which is later than
-// the support for <optional>, <any>, <string_view>, <variant>. So we use
-// _MSC_VER to check whether we have VS 2017 RTM (when <optional>, <any>,
-// <string_view>, <variant> is implemented) or higher. Also, `__cplusplus` is
-// not correctly set by MSVC, so we use `_MSVC_LANG` to check the language
-// version.
-// TODO(zhangxy): fix tests before enabling aliasing for `std::any`.
-#if defined(_MSC_VER) && _MSC_VER >= 1910 && \
-    ((defined(_MSVC_LANG) && _MSVC_LANG > 201402) || __cplusplus > 201402)
-// #define ABSL_HAVE_STD_ANY 1
-#define ABSL_HAVE_STD_OPTIONAL 1
-#define ABSL_HAVE_STD_VARIANT 1
-#define ABSL_HAVE_STD_STRING_VIEW 1
-#endif
-
-// ABSL_USES_STD_ANY
-//
-// Indicates whether absl::any is an alias for std::any.
-#if !defined(ABSL_OPTION_USE_STD_ANY)
-#error options.h is misconfigured.
-#elif ABSL_OPTION_USE_STD_ANY == 0 || \
-    (ABSL_OPTION_USE_STD_ANY == 2 && !defined(ABSL_HAVE_STD_ANY))
-#undef ABSL_USES_STD_ANY
-#elif ABSL_OPTION_USE_STD_ANY == 1 || \
-    (ABSL_OPTION_USE_STD_ANY == 2 && defined(ABSL_HAVE_STD_ANY))
-#define ABSL_USES_STD_ANY 1
-#else
-#error options.h is misconfigured.
-#endif
-
-// ABSL_USES_STD_OPTIONAL
-//
-// Indicates whether absl::optional is an alias for std::optional.
-#if !defined(ABSL_OPTION_USE_STD_OPTIONAL)
-#error options.h is misconfigured.
-#elif ABSL_OPTION_USE_STD_OPTIONAL == 0 || \
-    (ABSL_OPTION_USE_STD_OPTIONAL == 2 && !defined(ABSL_HAVE_STD_OPTIONAL))
-#undef ABSL_USES_STD_OPTIONAL
-#elif ABSL_OPTION_USE_STD_OPTIONAL == 1 || \
-    (ABSL_OPTION_USE_STD_OPTIONAL == 2 && defined(ABSL_HAVE_STD_OPTIONAL))
-#define ABSL_USES_STD_OPTIONAL 1
-#else
-#error options.h is misconfigured.
-#endif
-
-// ABSL_USES_STD_VARIANT
-//
-// Indicates whether absl::variant is an alias for std::variant.
-#if !defined(ABSL_OPTION_USE_STD_VARIANT)
-#error options.h is misconfigured.
-#elif ABSL_OPTION_USE_STD_VARIANT == 0 || \
-    (ABSL_OPTION_USE_STD_VARIANT == 2 && !defined(ABSL_HAVE_STD_VARIANT))
-#undef ABSL_USES_STD_VARIANT
-#elif ABSL_OPTION_USE_STD_VARIANT == 1 || \
-    (ABSL_OPTION_USE_STD_VARIANT == 2 && defined(ABSL_HAVE_STD_VARIANT))
-#define ABSL_USES_STD_VARIANT 1
-#else
-#error options.h is misconfigured.
-#endif
-
-// ABSL_USES_STD_STRING_VIEW
-//
-// Indicates whether absl::string_view is an alias for std::string_view.
-#if !defined(ABSL_OPTION_USE_STD_STRING_VIEW)
-#error options.h is misconfigured.
-#elif ABSL_OPTION_USE_STD_STRING_VIEW == 0 || \
-    (ABSL_OPTION_USE_STD_STRING_VIEW == 2 &&  \
-     !defined(ABSL_HAVE_STD_STRING_VIEW))
-#undef ABSL_USES_STD_STRING_VIEW
-#elif ABSL_OPTION_USE_STD_STRING_VIEW == 1 || \
-    (ABSL_OPTION_USE_STD_STRING_VIEW == 2 &&  \
-     defined(ABSL_HAVE_STD_STRING_VIEW))
-#define ABSL_USES_STD_STRING_VIEW 1
-#else
-#error options.h is misconfigured.
-#endif
-
-// In debug mode, MSVC 2017's std::variant throws a EXCEPTION_ACCESS_VIOLATION
-// SEH exception from emplace for variant<SomeStruct> when constructing the
-// struct can throw. This defeats some of variant_test and
-// variant_exception_safety_test.
-#if defined(_MSC_VER) && _MSC_VER >= 1700 && defined(_DEBUG)
-#define ABSL_INTERNAL_MSVC_2017_DBG_MODE
-#endif
-
-// ABSL_INTERNAL_MANGLED_NS
-// ABSL_INTERNAL_MANGLED_BACKREFERENCE
-//
-// Internal macros for building up mangled names in our internal fork of CCTZ.
-// This implementation detail is only needed and provided for the MSVC build.
-//
-// These macros both expand to string literals.  ABSL_INTERNAL_MANGLED_NS is
-// the mangled spelling of the `absl` namespace, and
-// ABSL_INTERNAL_MANGLED_BACKREFERENCE is a back-reference integer representing
-// the proper count to skip past the CCTZ fork namespace names.  (This number
-// is one larger when there is an inline namespace name to skip.)
-#if defined(_MSC_VER)
-#if ABSL_OPTION_USE_INLINE_NAMESPACE == 0
-#define ABSL_INTERNAL_MANGLED_NS "absl"
-#define ABSL_INTERNAL_MANGLED_BACKREFERENCE "5"
-#else
-#define ABSL_INTERNAL_MANGLED_NS \
-  ABSL_INTERNAL_TOKEN_STR(ABSL_OPTION_INLINE_NAMESPACE_NAME) "@absl"
-#define ABSL_INTERNAL_MANGLED_BACKREFERENCE "6"
-#endif
-#endif
-
-#undef ABSL_INTERNAL_HAS_KEYWORD
-
-// ABSL_DLL
-//
-// When building Abseil as a DLL, this macro expands to `__declspec(dllexport)`
-// so we can annotate symbols appropriately as being exported. When used in
-// headers consuming a DLL, this macro expands to `__declspec(dllimport)` so
-// that consumers know the symbol is defined inside the DLL. In all other cases,
-// the macro expands to nothing.
-#if defined(_MSC_VER)
-#if defined(ABSL_BUILD_DLL)
-#define ABSL_DLL __declspec(dllexport)
-#elif defined(ABSL_CONSUME_DLL)
-#define ABSL_DLL __declspec(dllimport)
-#else
-#define ABSL_DLL
-#endif
-#else
-#define ABSL_DLL
-#endif  // defined(_MSC_VER)
-
-// ABSL_HAVE_MEMORY_SANITIZER
-//
-// MemorySanitizer (MSan) is a detector of uninitialized reads. It consists of
-// a compiler instrumentation module and a run-time library.
-#ifdef ABSL_HAVE_MEMORY_SANITIZER
-#error "ABSL_HAVE_MEMORY_SANITIZER cannot be directly set."
-#elif defined(MEMORY_SANITIZER)
-// The MEMORY_SANITIZER macro is deprecated but we will continue to honor it
-// for now.
-#define ABSL_HAVE_MEMORY_SANITIZER 1
-#elif defined(__SANITIZE_MEMORY__)
-#define ABSL_HAVE_MEMORY_SANITIZER 1
-#elif !defined(__native_client__) && ABSL_HAVE_FEATURE(memory_sanitizer)
-#define ABSL_HAVE_MEMORY_SANITIZER 1
-#endif
-
-// ABSL_HAVE_THREAD_SANITIZER
-//
-// ThreadSanitizer (TSan) is a fast data race detector.
-#ifdef ABSL_HAVE_THREAD_SANITIZER
-#error "ABSL_HAVE_THREAD_SANITIZER cannot be directly set."
-#elif defined(THREAD_SANITIZER)
-// The THREAD_SANITIZER macro is deprecated but we will continue to honor it
-// for now.
-#define ABSL_HAVE_THREAD_SANITIZER 1
-#elif defined(__SANITIZE_THREAD__)
-#define ABSL_HAVE_THREAD_SANITIZER 1
-#elif ABSL_HAVE_FEATURE(thread_sanitizer)
-#define ABSL_HAVE_THREAD_SANITIZER 1
-#endif
-
-// ABSL_HAVE_ADDRESS_SANITIZER
-//
-// AddressSanitizer (ASan) is a fast memory error detector.
-#ifdef ABSL_HAVE_ADDRESS_SANITIZER
-#error "ABSL_HAVE_ADDRESS_SANITIZER cannot be directly set."
-#elif defined(ADDRESS_SANITIZER)
-// The ADDRESS_SANITIZER macro is deprecated but we will continue to honor it
-// for now.
-#define ABSL_HAVE_ADDRESS_SANITIZER 1
-#elif defined(__SANITIZE_ADDRESS__)
-#define ABSL_HAVE_ADDRESS_SANITIZER 1
-#elif ABSL_HAVE_FEATURE(address_sanitizer)
-#define ABSL_HAVE_ADDRESS_SANITIZER 1
-#endif
-
-#endif  // ABSL_BASE_CONFIG_H_