23e1ed65c2
This is a first step towards splitting up the <__config> header. The <__config> header is large and rather disorganized at this point, leading to confusion and subtle mistakes. For example, we never noticed that the string layout used on arm64 was only enabled for the Clang compiler, as the setting being in the compiler == clang block was probably never intentional. The danger of splitting up the <__config> header is to implicitly use undefined macros that should have been defined prior to their usage, however this can be remediated with -Wundef and we've started moving towards -Wundef enforceable macros.
52 lines
1.7 KiB
C++
52 lines
1.7 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___CONFIGURATION_COMPILER_H
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#define _LIBCPP___CONFIGURATION_COMPILER_H
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#include <__config_site>
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#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER
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# pragma GCC system_header
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#endif
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#if defined(__apple_build_version__)
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// Given AppleClang XX.Y.Z, _LIBCPP_APPLE_CLANG_VER is XXYZ (e.g. AppleClang 14.0.3 => 1403)
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# define _LIBCPP_COMPILER_CLANG_BASED
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# define _LIBCPP_APPLE_CLANG_VER (__apple_build_version__ / 10000)
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#elif defined(__clang__)
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# define _LIBCPP_COMPILER_CLANG_BASED
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# define _LIBCPP_CLANG_VER (__clang_major__ * 100 + __clang_minor__)
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#elif defined(__GNUC__)
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# define _LIBCPP_COMPILER_GCC
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# define _LIBCPP_GCC_VER (__GNUC__ * 100 + __GNUC_MINOR__)
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#endif
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#ifdef __cplusplus
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// Warn if a compiler version is used that is not supported anymore
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// LLVM RELEASE Update the minimum compiler versions
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# if defined(_LIBCPP_CLANG_VER)
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# if _LIBCPP_CLANG_VER < 1700
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# warning "Libc++ only supports Clang 17 and later"
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# endif
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# elif defined(_LIBCPP_APPLE_CLANG_VER)
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# if _LIBCPP_APPLE_CLANG_VER < 1500
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# warning "Libc++ only supports AppleClang 15 and later"
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# endif
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# elif defined(_LIBCPP_GCC_VER)
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# if _LIBCPP_GCC_VER < 1300
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# warning "Libc++ only supports GCC 13 and later"
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# endif
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# endif
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#endif
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#endif // _LIBCPP___CONFIGURATION_COMPILER_H
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