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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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10
sysdeps/unix/sysv/linux/bits/local_lim.h
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@ -1,5 +1,5 @@
/* Minimum guaranteed maximum values for system limits. Linux version.
Copyright (C) 1993-1998, 2000, 2003, 2004 Free Software Foundation, Inc.
Copyright (C) 1993-1998,2000,2003,2004,2008 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
@ -31,6 +31,9 @@
#ifndef OPEN_MAX
# define __undef_OPEN_MAX
#endif
#ifndef ARG_MAX
# define __undef_ARG_MAX
#endif
/* The kernel sources contain a file with all the needed information. */
#include <linux/limits.h>
@ -50,6 +53,11 @@
# undef OPEN_MAX
# undef __undef_OPEN_MAX
#endif
/* Have to remove ARG_MAX? */
#ifdef __undef_ARG_MAX
# undef ARG_MAX
# undef __undef_ARG_MAX
#endif
/* Maximum amount by which a process can descrease its asynchronous I/O
priority level. */