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/* Set flags signalling availability of kernel features based on given
kernel version number.
Copyright (C) 2010-2014 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, see
<http://www.gnu.org/licenses/>. */
#ifndef _KERNEL_FEATURES_H
#define _KERNEL_FEATURES_H 1
/* Support for recvmmsg was added for alpha in 2.6.33. */
#if __LINUX_KERNEL_VERSION >= 0x020621
# define __ASSUME_RECVMMSG_SYSCALL 1
#endif
/* Support for accept4 and sendmmsg was added for alpha in 3.2. */
#if __LINUX_KERNEL_VERSION >= 0x030200
# define __ASSUME_ACCEPT4_SYSCALL 1
# define __ASSUME_SENDMMSG_SYSCALL 1
#endif
#include_next <kernel-features.h>
#undef __ASSUME_ST_INO_64_BIT
/* Support for fallocate was added for alpha after 2.6.33-rc1. */
#if __LINUX_KERNEL_VERSION < 0x020621
# undef __ASSUME_FALLOCATE
#endif
/* There never has been support for fstat64. */
#undef __ASSUME_STATFS64
#define __ASSUME_STATFS64 0
/* Support for fsyncdata was added for alpha after 2.6.21. */
#define __ASSUME_FDATASYNC 1
/* Support for various syscalls was added for alpha in 2.6.33. */
#if __LINUX_KERNEL_VERSION < 0x020621
# undef __ASSUME_PREADV
# undef __ASSUME_PWRITEV
# undef __ASSUME_IN_NONBLOCK
# undef __ASSUME_PIPE2
# undef __ASSUME_EVENTFD2
# undef __ASSUME_SIGNALFD4
# undef __ASSUME_DUP3
#endif
#endif /* _KERNEL_FEATURES_H */
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