zig/lib/libcxx/include/__configuration/compiler.h
Alex Rønne Petersen 156ab87500
libcxx: Update to Clang 20.
See:

* https://discourse.llvm.org/t/rfc-freezing-c-03-headers-in-libc/77319
* https://discourse.llvm.org/t/rfc-project-hand-in-hand-llvm-libc-libc-code-sharing/77701

We're dropping support for C++03 for Zig due to the first change; it would be
insane to ship 1018 duplicate header files just for this outdated use case.

As a result of the second change, I had to bring in a subset of the headers from
llvm-libc since libc++ now depends on these. Hopefully we can continue to get
away with not copying the entirety of llvm-libc.
2025-04-04 06:08:09 +02:00

51 lines
1.7 KiB
C++
Vendored

// -*- 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_COMPILER_H
#define _LIBCPP___CONFIGURATION_COMPILER_H
/* zig patch: instead of including __config_site, zig adds -D flags when compiling */
#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER
# pragma GCC system_header
#endif
#if defined(__apple_build_version__)
// Given AppleClang XX.Y.Z, _LIBCPP_APPLE_CLANG_VER is XXYZ (e.g. AppleClang 14.0.3 => 1403)
# define _LIBCPP_COMPILER_CLANG_BASED
# define _LIBCPP_APPLE_CLANG_VER (__apple_build_version__ / 10000)
#elif defined(__clang__)
# define _LIBCPP_COMPILER_CLANG_BASED
# define _LIBCPP_CLANG_VER (__clang_major__ * 100 + __clang_minor__)
#elif defined(__GNUC__)
# define _LIBCPP_COMPILER_GCC
# define _LIBCPP_GCC_VER (__GNUC__ * 100 + __GNUC_MINOR__)
#endif
#ifdef __cplusplus
// Warn if a compiler version is used that is not supported anymore
// LLVM RELEASE Update the minimum compiler versions
# if defined(_LIBCPP_CLANG_VER)
# if _LIBCPP_CLANG_VER < 1800
# warning "Libc++ only supports Clang 18 and later"
# endif
# elif defined(_LIBCPP_APPLE_CLANG_VER)
# if _LIBCPP_APPLE_CLANG_VER < 1500
# warning "Libc++ only supports AppleClang 15 and later"
# endif
# elif defined(_LIBCPP_GCC_VER)
# if _LIBCPP_GCC_VER < 1400
# warning "Libc++ only supports GCC 14 and later"
# endif
# endif
#endif
#endif // _LIBCPP___CONFIGURATION_COMPILER_H