shell.h revision 17988 
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 *	$Id: shell.h,v 1.4 1996/09/01 10:21:41 peter Exp $
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 *	SYMLINKS -> 1 if your system includes symbolic links, 0 otherwise.
44 *	SHORTNAMES -> 1 if your linker cannot handle long names.
45 *	define BSD if you are running 4.2 BSD or later.
46 *	define SYSV if you are running under System V.
47 *	define DEBUG=1 to compile in debugging (set global "debug" to turn on)
48 *	define DEBUG=2 to compile in and turn on debugging.
49 *
50 * When debugging is on, debugging info will be written to $HOME/trace and
51 * a quit signal will generate a core dump.
52 */
53
54
55#define JOBS 1
56#define SYMLINKS 1
57#ifndef BSD
58#define BSD 1
59#endif
60/* #define DEBUG 1 */
61
62#ifdef __STDC__
63typedef void *pointer;
64#ifndef NULL
65#define NULL (void *)0
66#endif
67#else /* not __STDC__ */
68typedef char *pointer;
69#ifndef NULL
70#define NULL 0
71#endif
72#endif /*  not __STDC__ */
73#define STATIC	/* empty */
74#define MKINIT	/* empty */
75
76#include <sys/cdefs.h>
77
78extern char nullstr[1];		/* null string */
79
80
81#ifdef DEBUG
82#define TRACE(param)	shtrace param
83#else
84#define TRACE(param)
85#endif
86