|  | /* Definitions of flag bits for `waitpid' et al. | 
|  | Copyright (C) 1992-2016 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/>.  */ | 
|  |  | 
|  | #if !defined _SYS_WAIT_H && !defined _STDLIB_H | 
|  | # error "Never include <bits/waitflags.h> directly; use <sys/wait.h> instead." | 
|  | #endif | 
|  |  | 
|  |  | 
|  | /* Bits in the third argument to `waitpid'.  */ | 
|  | #define	WNOHANG		1	/* Don't block waiting.  */ | 
|  | #define	WUNTRACED	2	/* Report status of stopped children.  */ |