/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #ifndef __ERROR_H#define __ERROR_H#ifndef _RESEARCH_SOURCE   This header file is not defined in pure ANSI or POSIX#endif#pragma lib "/$M/lib/ape/libv.a" #ifdef __cplusplusextern "C" {#endif extern char *_progname;		/* program name */extern void _perror(char *);	/* perror but with _progname */ #ifdef __cplusplus}#endif #endif /* _ERROR_H */