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 8.1 (Berkeley) 5/31/93 37 */ 38 39 /* 40 * The follow should be set to reflect the type of system you have: 41 * JOBS -> 1 if you have Berkeley job control, 0 otherwise. 42 * SYMLINKS -> 1 if your system includes symbolic links, 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 #define SYMLINKS 1 56 #ifndef BSD 57 #define BSD 1 58 #endif 59 #define DEBUG 1 60 61 #ifdef __STDC__ 62 typedef void *pointer; 63 #ifndef NULL 64 #define NULL (void *)0 65 #endif 66 #else /* not __STDC__ */ 67 typedef char *pointer; 68 #ifndef NULL 69 #define NULL 0 70 #endif 71 #endif /* not __STDC__ */ 72 #define STATIC /* empty */ 73 #define MKINIT /* empty */ 74 75 #include <sys/cdefs.h> 76 77 extern char nullstr[1]; /* null string */ 78 79 80 #ifdef DEBUG 81 #define TRACE(param) trace param 82 #else 83 #define TRACE(param) 84 #endif 85