shell.h revision 50471 
1/*-
2 * Copyright (c) 1991, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Kenneth Almquist.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 *    must display the following acknowledgement:
18 *	This product includes software developed by the University of
19 *	California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 *	@(#)shell.h	8.2 (Berkeley) 5/4/95
37 * $FreeBSD: head/bin/sh/shell.h 50471 1999-08-27 23:15:48Z peter $
38 */
39
40/*
41 * The follow should be set to reflect the type of system you have:
42 *	JOBS -> 1 if you have Berkeley job control, 0 otherwise.
43 *	SHORTNAMES -> 1 if your linker cannot handle long names.
44 *	define BSD if you are running 4.2 BSD or later.
45 *	define SYSV if you are running under System V.
46 *	define DEBUG=1 to compile in debugging (set global "debug" to turn on)
47 *	define DEBUG=2 to compile in and turn on debugging.
48 *
49 * When debugging is on, debugging info will be written to $HOME/trace and
50 * a quit signal will generate a core dump.
51 */
52
53
54#define JOBS 1
55#ifndef BSD
56#define BSD 1
57#endif
58/* #define DEBUG 1 */
59
60#ifdef __STDC__
61typedef void *pointer;
62#ifndef NULL
63#define NULL (void *)0
64#endif
65#else /* not __STDC__ */
66typedef char *pointer;
67#ifndef NULL
68#define NULL 0
69#endif
70#endif /*  not __STDC__ */
71#define STATIC  static
72#define MKINIT	/* empty */
73
74#include <sys/cdefs.h>
75
76extern char nullstr[1];		/* null string */
77
78
79#ifdef DEBUG
80#define TRACE(param)	trace param
81#else
82#define TRACE(param)
83#endif
84