| // -*- C++ -*- | |
| //===----------------------------------------------------------------------===// | |
| // | |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | |
| // See https://llvm.org/LICENSE.txt for license information. | |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | |
| // | |
| //===----------------------------------------------------------------------===// | |
| #ifndef _LIBCPP___CONFIGURATION_AVAILABILITY_H | |
| #define _LIBCPP___CONFIGURATION_AVAILABILITY_H | |
| #include <__configuration/compiler.h> | |
| #include <__configuration/language.h> | |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) | |
| # pragma GCC system_header | |
| #endif | |
| // This file defines a framework that can be used by vendors to encode the version of an operating system that various | |
| // features of libc++ has been shipped in. This is primarily intended to allow safely deploying an executable built with | |
| // a new version of the library on a platform containing an older version of the built library. | |
| // Detailed documentation for this can be found at https://libcxx.llvm.org/VendorDocumentation.html#availability-markup | |
| // Availability markup is disabled when building the library, or when a non-Clang | |
| // compiler is used because only Clang supports the necessary attributes. | |
| // | |
| // We also allow users to force-disable availability markup via the `_LIBCPP_DISABLE_AVAILABILITY` | |
| // macro because that is the only way to work around a Clang bug related to availability | |
| // attributes: https://llvm.org/PR134151. | |
| // Once that bug has been fixed, we should remove the macro. | |
| #if defined(_LIBCPP_BUILDING_LIBRARY) || defined(_LIBCXXABI_BUILDING_LIBRARY) || \ | |
| !defined(_LIBCPP_COMPILER_CLANG_BASED) || defined(_LIBCPP_DISABLE_AVAILABILITY) | |
| # undef _LIBCPP_HAS_VENDOR_AVAILABILITY_ANNOTATIONS | |
| # define _LIBCPP_HAS_VENDOR_AVAILABILITY_ANNOTATIONS 0 | |
| #endif | |
| // When availability annotations are disabled, we take for granted that features introduced | |
| // in all versions of the library are available. | |
| #if !_LIBCPP_HAS_VENDOR_AVAILABILITY_ANNOTATIONS | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_22 1 | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_22_ATTRIBUTE /* nothing */ | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_21 1 | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_21_ATTRIBUTE /* nothing */ | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_20 1 | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_20_ATTRIBUTE /* nothing */ | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_19 1 | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_19_ATTRIBUTE /* nothing */ | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_18 1 | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_18_ATTRIBUTE /* nothing */ | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_16 1 | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_16_ATTRIBUTE /* nothing */ | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_15 1 | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_15_ATTRIBUTE /* nothing */ | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_14 1 | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_14_ATTRIBUTE /* nothing */ | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_12 1 | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_12_ATTRIBUTE /* nothing */ | |
| #elif defined(__APPLE__) | |
| // clang-format off | |
| // LLVM 22 | |
| // TODO: Fill this in | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_22 0 | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_22_ATTRIBUTE __attribute__((unavailable)) | |
| // LLVM 21 | |
| // TODO: Fill this in | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_21 0 | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_21_ATTRIBUTE __attribute__((unavailable)) | |
| // LLVM 20 | |
| // | |
| // Note that versions for most Apple OSes were bumped forward and aligned in that release. | |
| # if (defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 260000) || \ | |
| (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ < 260000) || \ | |
| (defined(__ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__ < 260000) || \ | |
| (defined(__ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__ < 260000) || \ | |
| (defined(__ENVIRONMENT_BRIDGE_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_BRIDGE_OS_VERSION_MIN_REQUIRED__ < 100000) | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_20 0 | |
| # else | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_20 1 | |
| # endif | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_20_ATTRIBUTE \ | |
| __attribute__((availability(macos, strict, introduced = 26.0))) \ | |
| __attribute__((availability(ios, strict, introduced = 26.0))) \ | |
| __attribute__((availability(tvos, strict, introduced = 26.0))) \ | |
| __attribute__((availability(watchos, strict, introduced = 26.0))) \ | |
| __attribute__((availability(bridgeos, strict, introduced = 10.0))) | |
| // LLVM 19 | |
| # if (defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 150400) || \ | |
| (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ < 180400) || \ | |
| (defined(__ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__ < 180400) || \ | |
| (defined(__ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__ < 110400) || \ | |
| (defined(__ENVIRONMENT_BRIDGE_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_BRIDGE_OS_VERSION_MIN_REQUIRED__ < 90400) | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_19 0 | |
| # else | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_19 1 | |
| # endif | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_19_ATTRIBUTE \ | |
| __attribute__((availability(macos, strict, introduced = 15.4))) \ | |
| __attribute__((availability(ios, strict, introduced = 18.4))) \ | |
| __attribute__((availability(tvos, strict, introduced = 18.4))) \ | |
| __attribute__((availability(watchos, strict, introduced = 11.4))) \ | |
| __attribute__((availability(bridgeos, strict, introduced = 9.4))) | |
| // LLVM 18 | |
| # if (defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 150000) || \ | |
| (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ < 180000) || \ | |
| (defined(__ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__ < 180000) || \ | |
| (defined(__ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__ < 110000) || \ | |
| (defined(__ENVIRONMENT_BRIDGE_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_BRIDGE_OS_VERSION_MIN_REQUIRED__ < 90000) || \ | |
| (defined(__ENVIRONMENT_DRIVERKIT_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_DRIVERKIT_VERSION_MIN_REQUIRED__ < 240000) | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_18 0 | |
| # else | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_18 1 | |
| # endif | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_18_ATTRIBUTE \ | |
| __attribute__((availability(macos, strict, introduced = 15.0))) \ | |
| __attribute__((availability(ios, strict, introduced = 18.0))) \ | |
| __attribute__((availability(tvos, strict, introduced = 18.0))) \ | |
| __attribute__((availability(watchos, strict, introduced = 11.0))) \ | |
| __attribute__((availability(bridgeos, strict, introduced = 9.0))) \ | |
| __attribute__((availability(driverkit, strict, introduced = 24.0))) | |
| // LLVM 16 | |
| # if (defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 140000) || \ | |
| (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ < 170000) || \ | |
| (defined(__ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__ < 170000) || \ | |
| (defined(__ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__ < 100000) || \ | |
| (defined(__ENVIRONMENT_BRIDGE_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_BRIDGE_OS_VERSION_MIN_REQUIRED__ < 80000) || \ | |
| (defined(__ENVIRONMENT_DRIVERKIT_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_DRIVERKIT_VERSION_MIN_REQUIRED__ < 230000) | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_16 0 | |
| # else | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_16 1 | |
| # endif | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_16_ATTRIBUTE \ | |
| __attribute__((availability(macos, strict, introduced = 14.0))) \ | |
| __attribute__((availability(ios, strict, introduced = 17.0))) \ | |
| __attribute__((availability(tvos, strict, introduced = 17.0))) \ | |
| __attribute__((availability(watchos, strict, introduced = 10.0))) \ | |
| __attribute__((availability(bridgeos, strict, introduced = 8.0))) \ | |
| __attribute__((availability(driverkit, strict, introduced = 23.0))) | |
| // LLVM 15 | |
| # if (defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 130300) || \ | |
| (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ < 160300) || \ | |
| (defined(__ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__ < 160300) || \ | |
| (defined(__ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__ < 90300) || \ | |
| (defined(__ENVIRONMENT_BRIDGE_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_BRIDGE_OS_VERSION_MIN_REQUIRED__ < 70500) || \ | |
| (defined(__ENVIRONMENT_DRIVERKIT_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_DRIVERKIT_VERSION_MIN_REQUIRED__ < 220400) | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_15 0 | |
| # else | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_15 1 | |
| # endif | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_15_ATTRIBUTE \ | |
| __attribute__((availability(macos, strict, introduced = 13.3))) \ | |
| __attribute__((availability(ios, strict, introduced = 16.3))) \ | |
| __attribute__((availability(tvos, strict, introduced = 16.3))) \ | |
| __attribute__((availability(watchos, strict, introduced = 9.3))) \ | |
| __attribute__((availability(bridgeos, strict, introduced = 7.5))) \ | |
| __attribute__((availability(driverkit, strict, introduced = 22.4))) | |
| // LLVM 14 | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_14 _LIBCPP_INTRODUCED_IN_LLVM_15 | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_14_ATTRIBUTE _LIBCPP_INTRODUCED_IN_LLVM_15_ATTRIBUTE | |
| // LLVM 12 | |
| # if (defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 120300) || \ | |
| (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ < 150300) || \ | |
| (defined(__ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__ < 150300) || \ | |
| (defined(__ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__ < 80300) || \ | |
| (defined(__ENVIRONMENT_BRIDGE_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_BRIDGE_OS_VERSION_MIN_REQUIRED__ < 60000) || \ | |
| (defined(__ENVIRONMENT_DRIVERKIT_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_DRIVERKIT_VERSION_MIN_REQUIRED__ < 210300) | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_12 0 | |
| # else | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_12 1 | |
| # endif | |
| # define _LIBCPP_INTRODUCED_IN_LLVM_12_ATTRIBUTE \ | |
| __attribute__((availability(macos, strict, introduced = 12.3))) \ | |
| __attribute__((availability(ios, strict, introduced = 15.3))) \ | |
| __attribute__((availability(tvos, strict, introduced = 15.3))) \ | |
| __attribute__((availability(watchos, strict, introduced = 8.3))) \ | |
| __attribute__((availability(bridgeos, strict, introduced = 6.0))) \ | |
| __attribute__((availability(driverkit, strict, introduced = 21.3))) | |
| # if (defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 110000) || \ | |
| (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ < 150000) || \ | |
| (defined(__ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__ < 150000) || \ | |
| (defined(__ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__ < 80000) || \ | |
| (defined(__ENVIRONMENT_DRIVERKIT_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_DRIVERKIT_VERSION_MIN_REQUIRED__ < 200000) | |
| # warning "The selected platform is no longer supported by libc++." | |
| # endif | |
| #else | |
| // ...New vendors can add availability markup here... | |
| # error \ | |
| "It looks like you're trying to enable vendor availability markup, but you haven't defined the corresponding macros yet!" | |
| #endif | |
| // This controls the availability of new implementation of std::atomic's | |
| // wait, notify_one and notify_all. The new implementation uses | |
| // the native atomic wait/notify operations on platforms that support them | |
| // based on the size of the atomic type, instead of the type itself. | |
| #define _LIBCPP_AVAILABILITY_HAS_NEW_SYNC _LIBCPP_INTRODUCED_IN_LLVM_22 | |
| #define _LIBCPP_AVAILABILITY_NEW_SYNC _LIBCPP_INTRODUCED_IN_LLVM_22_ATTRIBUTE | |
| // This controls whether `std::__hash_memory` is available in the dylib, which | |
| // is used for some `std::hash` specializations. | |
| #define _LIBCPP_AVAILABILITY_HAS_HASH_MEMORY _LIBCPP_INTRODUCED_IN_LLVM_21 | |
| // No attribute, since we've had hash in the headers before | |
| // This controls whether we provide a message for `bad_function_call::what()` that specific to `std::bad_function_call`. | |
| // See https://wg21.link/LWG2233. This requires `std::bad_function_call::what()` to be available in the dylib. | |
| #define _LIBCPP_AVAILABILITY_HAS_BAD_FUNCTION_CALL_GOOD_WHAT_MESSAGE _LIBCPP_INTRODUCED_IN_LLVM_21 | |
| // No attribute, since we've had bad_function_call::what() in the headers before | |
| // This controls the availability of floating-point std::from_chars functions. | |
| // These overloads were added later than the integer overloads. | |
| #define _LIBCPP_AVAILABILITY_HAS_FROM_CHARS_FLOATING_POINT _LIBCPP_INTRODUCED_IN_LLVM_20 | |
| #define _LIBCPP_AVAILABILITY_FROM_CHARS_FLOATING_POINT _LIBCPP_INTRODUCED_IN_LLVM_20_ATTRIBUTE | |
| // This controls the availability of the C++20 time zone database. | |
| // The parser code is built in the library. | |
| #define _LIBCPP_AVAILABILITY_HAS_TZDB _LIBCPP_INTRODUCED_IN_LLVM_19 | |
| #define _LIBCPP_AVAILABILITY_TZDB _LIBCPP_INTRODUCED_IN_LLVM_19_ATTRIBUTE | |
| // These macros determine whether we assume that std::bad_function_call and | |
| // std::bad_expected_access provide a key function in the dylib. This allows | |
| // centralizing their vtable and typeinfo instead of having all TUs provide | |
| // a weak definition that then gets deduplicated. | |
| #define _LIBCPP_AVAILABILITY_HAS_BAD_FUNCTION_CALL_KEY_FUNCTION _LIBCPP_INTRODUCED_IN_LLVM_19 | |
| #define _LIBCPP_AVAILABILITY_BAD_FUNCTION_CALL_KEY_FUNCTION _LIBCPP_INTRODUCED_IN_LLVM_19_ATTRIBUTE | |
| #define _LIBCPP_AVAILABILITY_HAS_BAD_EXPECTED_ACCESS_KEY_FUNCTION _LIBCPP_INTRODUCED_IN_LLVM_19 | |
| #define _LIBCPP_AVAILABILITY_BAD_EXPECTED_ACCESS_KEY_FUNCTION _LIBCPP_INTRODUCED_IN_LLVM_19_ATTRIBUTE | |
| // These macros controls the availability of __cxa_init_primary_exception | |
| // in the built library, which std::make_exception_ptr might use | |
| // (see libcxx/include/__exception/exception_ptr.h). | |
| #define _LIBCPP_AVAILABILITY_HAS_INIT_PRIMARY_EXCEPTION _LIBCPP_INTRODUCED_IN_LLVM_18 | |
| #define _LIBCPP_AVAILABILITY_INIT_PRIMARY_EXCEPTION _LIBCPP_INTRODUCED_IN_LLVM_18_ATTRIBUTE | |
| // This controls the availability of the C++17 std::pmr library, | |
| // which is implemented in large part in the built library. | |
| // | |
| // TODO: Enable std::pmr markup once https://llvm.org/PR40340 has been fixed | |
| // Until then, it is possible for folks to try to use `std::pmr` when back-deploying to targets that don't support | |
| // it and it'll be a load-time error, but we don't have a good alternative because the library won't compile if we | |
| // use availability annotations until that bug has been fixed. | |
| #define _LIBCPP_AVAILABILITY_HAS_PMR _LIBCPP_INTRODUCED_IN_LLVM_16 | |
| #define _LIBCPP_AVAILABILITY_PMR | |
| // This controls whether the library claims to provide a default verbose | |
| // termination function, and consequently whether the headers will try | |
| // to use it when the mechanism isn't overriden at compile-time. | |
| #define _LIBCPP_AVAILABILITY_HAS_VERBOSE_ABORT _LIBCPP_INTRODUCED_IN_LLVM_15 | |
| #define _LIBCPP_AVAILABILITY_VERBOSE_ABORT _LIBCPP_INTRODUCED_IN_LLVM_15_ATTRIBUTE | |
| // This controls the availability of floating-point std::to_chars functions. | |
| // These overloads were added later than the integer overloads. | |
| #define _LIBCPP_AVAILABILITY_HAS_TO_CHARS_FLOATING_POINT _LIBCPP_INTRODUCED_IN_LLVM_14 | |
| #define _LIBCPP_AVAILABILITY_TO_CHARS_FLOATING_POINT _LIBCPP_INTRODUCED_IN_LLVM_14_ATTRIBUTE | |
| // Enable additional explicit instantiations of iostreams components. This | |
| // reduces the number of weak definitions generated in programs that use | |
| // iostreams by providing a single strong definition in the shared library. | |
| // | |
| // TODO: Enable additional explicit instantiations on GCC once it supports exclude_from_explicit_instantiation, | |
| // or once libc++ doesn't use the attribute anymore. | |
| // TODO: Enable them on Windows once https://llvm.org/PR41018 has been fixed. | |
| #if !defined(_LIBCPP_COMPILER_GCC) && !defined(_WIN32) | |
| # define _LIBCPP_AVAILABILITY_HAS_ADDITIONAL_IOSTREAM_EXPLICIT_INSTANTIATIONS_1 _LIBCPP_INTRODUCED_IN_LLVM_12 | |
| #else | |
| # define _LIBCPP_AVAILABILITY_HAS_ADDITIONAL_IOSTREAM_EXPLICIT_INSTANTIATIONS_1 0 | |
| #endif | |
| // Only define a bunch of symbols in the dylib if we need to be compatible with LLVM 7 headers or older | |
| # if defined(_LIBCPP_BUILDING_LIBRARY) && _LIBCPP_AVAILABILITY_MINIMUM_HEADER_VERSION < 8 | |
| # define _LIBCPP_HIDE_FROM_ABI_SINCE_LLVM8 | |
| # else | |
| # define _LIBCPP_HIDE_FROM_ABI_SINCE_LLVM8 _LIBCPP_HIDE_FROM_ABI | |
| # endif | |
| #endif // _LIBCPP___CONFIGURATION_AVAILABILITY_H |