2 //===----------------------------------------------------------------------===//
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
8 //===----------------------------------------------------------------------===//
10 #ifndef _LIBCPP_CERRNO
11 #define _LIBCPP_CERRNO
29 #ifndef _LIBCPP_ERRNO_H
30 # error <cerrno> tried including <errno.h> but didn't find libc++'s <errno.h> header. \
31 This usually means that your header search paths are not configured properly. \
32 The header search paths should contain the C++ Standard Library headers before \
33 any C Standard Library, and you are probably using compiler flags that make that \
37 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
38 # pragma GCC system_header
41 // LWG3869 Deprecate std::errc constants related to UNIX STREAMS
43 // This LWG issue deprecates the POSIX macros ENODATA, ENOSR, ENOSTR, and ETIME. These were
44 // deprecated in libc++ in https://github.com/llvm/llvm-project/pull/80542.
45 // Based on the post commit feedback the macro are no longer deprecated.
46 // Instead libc++ leaves the deprecation to the provider of errno.h.
48 #endif // _LIBCPP_CERRNO