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* sysdeps/unix/sysv/linux/bits/local_lim.h: Undefined ARG_MAX if

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<linux/limits.h> has defined it.
	* sysdeps/unix/sysv/linux/sys/param.h: Define NCARGS to the legacy
	ARG_MAX value and prevent ARG_MAX from being defined by the kernel
	headers.
	* sysdeps/unix/sysv/linux/sysconf.c: Define legacy_ARG_MAX and use
	it instead of ARG_MAX.
This commit is contained in:
Ulrich Drepper
2008-03-27 15:20:38 +00:00
parent fde15fdc5b
commit f96853beaf
10 changed files with 95 additions and 12 deletions
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18
sysdeps/unix/sysv/linux/sys/param.h
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@ -1,4 +1,4 @@
/* Copyright (C) 1995,1996,1997,2000,2001,2003 Free Software Foundation, Inc.
/* Copyright (C) 1995-1997,2000,2001,2003,2008 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
@ -19,10 +19,20 @@
#ifndef _SYS_PARAM_H
#define _SYS_PARAM_H 1
#ifndef ARG_MAX
# define __undef_ARG_MAX
#endif
#include <limits.h>
#include <linux/limits.h>
#include <linux/param.h>
/* The kernel headers defines ARG_MAX. The value is wrong, though. */
#ifndef __undef_ARG_MAX
# undef ARG_MAX
# undef __undef_ARG_MAX
#endif
/* BSD names for some <limits.h> values. */
#define NBBY CHAR_BIT
@ -31,12 +41,12 @@
#endif
#define MAXSYMLINKS 20
#define CANBSIZ MAX_CANON
#define NCARGS ARG_MAX
#define MAXPATHLEN PATH_MAX
/* The following is not really correct but it is a value we used for a
/* The following are not really correct but it is a value we used for a
long time and which seems to be usable. People should not use NOFILE
anyway. */
and NCARGS anyway. */
#define NOFILE 256
#define NCARGS 131072
#include <sys/types.h>