/* Set flags signalling availability of certain operating system features.   Copyright (C) 2007 Free Software Foundation, Inc.   This file is part of the GNU C Library.   The GNU C Library is free software; you can redistribute it and/or   modify it under the terms of the GNU Lesser General Public   License as published by the Free Software Foundation; either   version 2.1 of the License, or (at your option) any later version.   The GNU C Library is distributed in the hope that it will be useful,   but WITHOUT ANY WARRANTY; without even the implied warranty of   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU   Lesser General Public License for more details.   You should have received a copy of the GNU Lesser General Public   License along with the GNU C Library; if not, write to the Free   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA   02111-1307 USA.  *//* This file can define __ASSUME_* macros checked by certain source files.   Almost none of these are used outside of sysdeps/unix/sysv/linux code.   But those referring to POSIX-level features like O_* flags can be.  */#include <fcntl.h>/* If a system defines the O_CLOEXEC constant but it is sometimes ignored,   it must override this file to define __ASSUME_O_CLOEXEC conditionally   (or not at all) to indicate when O_CLOEXEC actually works.  */#ifdef O_CLOEXEC# define __ASSUME_O_CLOEXEC	1#endif