xref: /original-bsd/bin/sh/shell.h (revision 14dedd6e)
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  * %sccs.include.redist.c%
9  *
10  *	@(#)shell.h	8.2 (Berkeley) 05/04/95
11  */
12 
13 /*
14  * The follow should be set to reflect the type of system you have:
15  *	JOBS -> 1 if you have Berkeley job control, 0 otherwise.
16  *	SYMLINKS -> 1 if your system includes symbolic links, 0 otherwise.
17  *	SHORTNAMES -> 1 if your linker cannot handle long names.
18  *	define BSD if you are running 4.2 BSD or later.
19  *	define SYSV if you are running under System V.
20  *	define DEBUG=1 to compile in debugging (set global "debug" to turn on)
21  *	define DEBUG=2 to compile in and turn on debugging.
22  *
23  * When debugging is on, debugging info will be written to $HOME/trace and
24  * a quit signal will generate a core dump.
25  */
26 
27 
28 #define JOBS 1
29 #define SYMLINKS 1
30 #ifndef BSD
31 #define BSD 1
32 #endif
33 #define DEBUG 1
34 
35 #ifdef __STDC__
36 typedef void *pointer;
37 #ifndef NULL
38 #define NULL (void *)0
39 #endif
40 #else /* not __STDC__ */
41 typedef char *pointer;
42 #ifndef NULL
43 #define NULL 0
44 #endif
45 #endif /*  not __STDC__ */
46 #define STATIC	/* empty */
47 #define MKINIT	/* empty */
48 
49 #include <sys/cdefs.h>
50 
51 extern char nullstr[1];		/* null string */
52 
53 
54 #ifdef DEBUG
55 #define TRACE(param)	trace param
56 #else
57 #define TRACE(param)
58 #endif
59