libcxx/include/__configuration/compiler.h

   1 // -*- C++ -*-
   2 //===----------------------------------------------------------------------===//
   3 //
   4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   5 // See https://llvm.org/LICENSE.txt for license information.
   6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #ifndef _LIBCPP___CONFIGURATION_COMPILER_H
  11 #define _LIBCPP___CONFIGURATION_COMPILER_H
  12
  13 #include <__config_site>
  14
  15 #ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER
  16 #  pragma GCC system_header
  17 #endif
  18
  19 #if defined(__apple_build_version__)
  20 // Given AppleClang XX.Y.Z, _LIBCPP_APPLE_CLANG_VER is XXYZ (e.g. AppleClang 14.0.3 => 1403)
  21 #  define _LIBCPP_COMPILER_CLANG_BASED
  22 #  define _LIBCPP_APPLE_CLANG_VER (__apple_build_version__ / 10000)
  23 #elif defined(__clang__)
  24 #  define _LIBCPP_COMPILER_CLANG_BASED
  25 #  define _LIBCPP_CLANG_VER (__clang_major__ * 100 + __clang_minor__)
  26 #elif defined(__GNUC__)
  27 #  define _LIBCPP_COMPILER_GCC
  28 #  define _LIBCPP_GCC_VER (__GNUC__ * 100 + __GNUC_MINOR__)
  29 #endif
  30
  31 #ifdef __cplusplus
  32
  33 // Warn if a compiler version is used that is not supported anymore
  34 // LLVM RELEASE Update the minimum compiler versions
  35 #  if defined(_LIBCPP_CLANG_VER)
  36 #    if _LIBCPP_CLANG_VER < 1700
  37 #      warning "Libc++ only supports Clang 17 and later"
  38 #    endif
  39 #  elif defined(_LIBCPP_APPLE_CLANG_VER)
  40 #    if _LIBCPP_APPLE_CLANG_VER < 1500
  41 #      warning "Libc++ only supports AppleClang 15 and later"
  42 #    endif
  43 #  elif defined(_LIBCPP_GCC_VER)
  44 #    if _LIBCPP_GCC_VER < 1400
  45 #      warning "Libc++ only supports GCC 14 and later"
  46 #    endif
  47 #  endif
  48
  49 #endif
  50
  51 #endif // _LIBCPP___CONFIGURATION_COMPILER_H