HCoop / bpt / emacs.git / blame
| Commit | Line | Data |
|---|---|---|
| 20c428fd | 1 | /* Definitions file for GNU Emacs running on AT&T's System V Release 4 |
| 40c17879 | 2 | |
| acaf905b | 3 | Copyright (C) 1987, 1990, 1999-2012 Free Software Foundation, Inc. |
| 20c428fd | 4 | |
| e05aebe9 GM |
5 | Written by James Van Artsdalen of Dell Computer Corp. james@bigtex.cactus.org. |
| 6 | Subsequently improved for Dell 2.2 by Eric S. Raymond <esr@snark.thyrsus.com>. | |
| 7 | ||
| 20c428fd JB |
8 | This file is part of GNU Emacs. |
| 9 | ||
| 4b158629 | 10 | GNU Emacs is free software: you can redistribute it and/or modify |
| bd307392 | 11 | it under the terms of the GNU General Public License as published by |
| 4b158629 GM |
12 | the Free Software Foundation, either version 3 of the License, or |
| 13 | (at your option) any later version. | |
| bd307392 | 14 | |
| 20c428fd | 15 | GNU Emacs is distributed in the hope that it will be useful, |
| bd307392 JB |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 18 | GNU General Public License for more details. | |
| 19 | ||
| 20 | You should have received a copy of the GNU General Public License | |
| 4b158629 | 21 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 20c428fd | 22 | |
| e05aebe9 | 23 | /* Use the SysVr3 file for at least base configuration. */ |
| f2a77c3a | 24 | #define USG /* System III, System V, etc */ |
| 20c428fd | 25 | |
| f2a77c3a | 26 | #define USG5 |
| 16192a57 GM |
27 | /* Nothing in Emacs use this any more. */ |
| 28 | /* #define USG5_4 */ | |
| 20c428fd | 29 | |
| f2a77c3a DN |
30 | /* setjmp and longjmp can safely replace _setjmp and _longjmp, |
| 31 | but they will run slower. */ | |
| f2a77c3a DN |
32 | #define _setjmp setjmp |
| 33 | #define _longjmp longjmp | |
| 34 | ||
| e05aebe9 | 35 | /* Get FIONREAD from <sys/filio.h>. Get <sys/ttold.h> to get struct tchars. |
| 45fa9c0f | 36 | But get <termio.h> first to make sure ttold.h doesn't interfere. */ |
| f0ce95e7 | 37 | #include <sys/wait.h> |
| f0ce95e7 | 38 | |
| 20c428fd JB |
39 | #ifdef emacs |
| 40 | #include <sys/filio.h> | |
| 41 | #include <termio.h> | |
| 42 | #include <sys/ttold.h> | |
| 43 | #include <signal.h> | |
| bd307392 JB |
44 | #include <sys/stream.h> |
| 45 | #include <sys/stropts.h> | |
| 46 | #include <sys/termios.h> | |
| 20c428fd JB |
47 | #endif |
| 48 | ||
| 5447018c | 49 | /* Some SVr4s don't define NSIG in sys/signal.h for ANSI environments; |
| e05aebe9 GM |
50 | instead, there's a system variable _sys_nsig. Unfortunately, we need the |
| 51 | constant to dimension an array. So wire in the appropriate value here. */ | |
| bb7b4368 | 52 | #define NSIG_MINIMUM 32 |
| 5447018c | 53 | |
| 20c428fd JB |
54 | /* It is possible to receive SIGCHLD when there are no children |
| 55 | waiting, because a previous waitsys(2) cleaned up the carcass of child | |
| 56 | without clearing the SIGCHLD pending info. So, use a non-blocking | |
| 57 | wait3 instead, which maps to waitpid(2) in SysVr4. */ | |
| 20c428fd | 58 | #define wait3(status, options, rusage) \ |
| 5bf62b08 | 59 | waitpid ((pid_t) -1, (status), (options)) |
| 20c428fd JB |
60 | #define WRETCODE(w) (w >> 8) |
| 61 | ||
| 62 | /* TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY | |
| 63 | subprocesses the usual way. But TIOCSIGNAL does work for PTYs, and | |
| 64 | this is all we need. */ | |
| 20c428fd JB |
65 | #define TIOCSIGSEND TIOCSIGNAL |
| 66 | ||
| e05aebe9 | 67 | /* Push various streams modules onto a PTY channel. */ |
| 20c428fd JB |
68 | #define SETUP_SLAVE_PTY \ |
| 69 | if (ioctl (xforkin, I_PUSH, "ptem") == -1) \ | |
| efc736d3 | 70 | fatal ("ioctl I_PUSH ptem"); \ |
| 20c428fd | 71 | if (ioctl (xforkin, I_PUSH, "ldterm") == -1) \ |
| efc736d3 | 72 | fatal ("ioctl I_PUSH ldterm"); \ |
| 20c428fd | 73 | if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) \ |
| efc736d3 | 74 | fatal ("ioctl I_PUSH ttcompat"); |