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* include/features.h: Grok _ATFILE_SOURCE and define __USE_ATFILE when

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it or _GNU_SOURCE is defined.
	* io/fcntl.h: Protect *at and AT_* with [__USE_ATFILE] instead of
	[__USE_GNU].
	* libio/stdio.h: Likewise.
	* posix/unistd.h: Likewise.
	* time/sys/time.h: Likewise.
This commit is contained in:
Roland McGrath
2006-01-05 12:25:42 +00:00
parent c90c5d4106
commit 0b8f25bbca
6 changed files with 34 additions and 15 deletions
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12
io/fcntl.h
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@ -1,5 +1,5 @@
/* Copyright (C) 1991,1992,1994-2001,2003,2004,2005
Free Software Foundation, Inc.
/* Copyright (C) 1991,1992,1994-2001,2003,2004,2005,2006
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
@ -56,7 +56,7 @@ __BEGIN_DECLS
# define SEEK_END 2 /* Seek from end of file. */
#endif /* XPG */
#ifdef __USE_GNU
#ifdef __USE_ATFILE
# define AT_FDCWD -100 /* Special value used to indicate
openat should use the current
working directory. */
@ -92,11 +92,11 @@ extern int __REDIRECT (open, (__const char *__file, int __oflag, ...), open64)
extern int open64 (__const char *__file, int __oflag, ...) __nonnull ((1));
#endif
#ifdef __USE_GNU
/* Similar to OPEN but a relative path name is interpreted relative to
#ifdef __USE_ATFILE
/* Similar to `open' but a relative path name is interpreted relative to
the directory for which FD is a descriptor.
NOTE: some other OPENAT implementation support additional functionality
NOTE: some other `openat' implementation support additional functionality
through this interface, especially using the O_XATTR flag. This is not
yet supported here.