Update Gnulib to v0.0-6703-g4e0358a.
[bpt/guile.git] / lib / sys_file.in.h
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1/* Provide a more complete sys/file.h.
2
49114fd4 3 Copyright (C) 2007-2011 Free Software Foundation, Inc.
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4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as published by
7 the Free Software Foundation; either version 2, or (at your option)
8 any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public License
16 along with this program; if not, write to the Free Software Foundation,
17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
18
19/* Written by Richard W.M. Jones. */
a927b6c1 20
3d458a81 21#ifndef _@GUARD_PREFIX@_SYS_FILE_H
f240aacb 22
a927b6c1 23#if __GNUC__ >= 3
f240aacb 24@PRAGMA_SYSTEM_HEADER@
a927b6c1 25#endif
0f00f2c3 26@PRAGMA_COLUMNS@
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27
28/* The include_next requires a split double-inclusion guard. */
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29#if @HAVE_SYS_FILE_H@
30# @INCLUDE_NEXT@ @NEXT_SYS_FILE_H@
31#endif
f240aacb 32
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33#ifndef _@GUARD_PREFIX@_SYS_FILE_H
34#define _@GUARD_PREFIX@_SYS_FILE_H
f240aacb 35
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36#ifndef LOCK_SH
37/* Operations for the 'flock' call (same as Linux kernel constants). */
38# define LOCK_SH 1 /* Shared lock. */
39# define LOCK_EX 2 /* Exclusive lock. */
40# define LOCK_UN 8 /* Unlock. */
41
42/* Can be OR'd in to one of the above. */
43# define LOCK_NB 4 /* Don't block when locking. */
44#endif
45
46/* The definition of _GL_WARN_ON_USE is copied here. */
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47
48#if @GNULIB_FLOCK@
49/* Apply or remove advisory locks on an open file.
50 Return 0 if successful, otherwise -1 and errno set. */
51# if !@HAVE_FLOCK@
52extern int flock (int fd, int operation);
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53# endif
54#elif defined GNULIB_POSIXCHECK
55# undef flock
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56# if HAVE_RAW_DECL_FLOCK
57_GL_WARN_ON_USE (flock, "flock is unportable - "
58 "use gnulib module flock for portability");
59# endif
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60#endif
61
62
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63#endif /* _@GUARD_PREFIX@_SYS_FILE_H */
64#endif /* _@GUARD_PREFIX@_SYS_FILE_H */