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 GM |
2 | |
| 3 | Copyright (C) 1987, 1990, 1999, 2000, 2001, 2002, 2003, 2004, 2005, | |
| 4 | 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. | |
| 20c428fd | 5 | |
| e05aebe9 GM |
6 | Written by James Van Artsdalen of Dell Computer Corp. james@bigtex.cactus.org. |
| 7 | Subsequently improved for Dell 2.2 by Eric S. Raymond <esr@snark.thyrsus.com>. | |
| 8 | ||
| 20c428fd JB |
9 | This file is part of GNU Emacs. |
| 10 | ||
| 4b158629 | 11 | GNU Emacs is free software: you can redistribute it and/or modify |
| bd307392 | 12 | it under the terms of the GNU General Public License as published by |
| 4b158629 GM |
13 | the Free Software Foundation, either version 3 of the License, or |
| 14 | (at your option) any later version. | |
| bd307392 | 15 | |
| 20c428fd | 16 | GNU Emacs is distributed in the hope that it will be useful, |
| bd307392 JB |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 19 | GNU General Public License for more details. | |
| 20 | ||
| 21 | You should have received a copy of the GNU General Public License | |
| 4b158629 | 22 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 20c428fd | 23 | |
| e05aebe9 | 24 | /* Use the SysVr3 file for at least base configuration. */ |
| f2a77c3a | 25 | #define USG /* System III, System V, etc */ |
| 20c428fd | 26 | |
| f2a77c3a | 27 | #define USG5 |
| 20c428fd JB |
28 | #define USG5_4 |
| 29 | ||
| f2a77c3a | 30 | /* SYSTEM_TYPE should indicate the kind of system you are using. |
| e05aebe9 | 31 | It sets the Lisp variable system-type. */ |
| f2a77c3a | 32 | #define SYSTEM_TYPE "usg-unix-v" |
| 20c428fd | 33 | |
| e05aebe9 GM |
34 | /* Define HAVE_TERMIO if the system provides sysV-style ioctls |
| 35 | for terminal control. */ | |
| f2a77c3a DN |
36 | #define HAVE_TERMIO |
| 37 | ||
| f2a77c3a | 38 | /* The file containing the kernel's symbol table is called /unix. */ |
| f2a77c3a DN |
39 | #define KERNEL_FILE "/unix" |
| 40 | ||
| e05aebe9 | 41 | /* The kernel symbol where the load average is found is named avenrun. */ |
| f2a77c3a DN |
42 | #define LDAV_SYMBOL "avenrun" |
| 43 | ||
| f2a77c3a DN |
44 | /* setjmp and longjmp can safely replace _setjmp and _longjmp, |
| 45 | but they will run slower. */ | |
| f2a77c3a DN |
46 | #define _setjmp setjmp |
| 47 | #define _longjmp longjmp | |
| 48 | ||
| e05aebe9 | 49 | /* The docs for system V/386 suggest v.3 has sigpause, so let's try it. */ |
| f2a77c3a DN |
50 | #define HAVE_SYSV_SIGPAUSE |
| 51 | ||
| e05aebe9 | 52 | /* On USG systems signal handlers return void. */ |
| f2a77c3a | 53 | #define SIGTYPE void |
| 5cb70bb5 | 54 | |
| e05aebe9 GM |
55 | /* Get FIONREAD from <sys/filio.h>. Get <sys/ttold.h> to get struct tchars. |
| 56 | But get <termio.h> first to make sure ttold.h doesn't interfere. | |
| 57 | And don't try to use SIGIO yet. */ | |
| f0ce95e7 | 58 | #include <sys/wait.h> |
| f0ce95e7 | 59 | |
| 20c428fd JB |
60 | #ifdef emacs |
| 61 | #include <sys/filio.h> | |
| 62 | #include <termio.h> | |
| 63 | #include <sys/ttold.h> | |
| 64 | #include <signal.h> | |
| bd307392 JB |
65 | #include <sys/stream.h> |
| 66 | #include <sys/stropts.h> | |
| 67 | #include <sys/termios.h> | |
| bb7b4368 | 68 | #define BROKEN_SIGIO |
| 20c428fd JB |
69 | #endif |
| 70 | ||
| 5447018c | 71 | /* Some SVr4s don't define NSIG in sys/signal.h for ANSI environments; |
| e05aebe9 GM |
72 | instead, there's a system variable _sys_nsig. Unfortunately, we need the |
| 73 | constant to dimension an array. So wire in the appropriate value here. */ | |
| bb7b4368 | 74 | #define NSIG_MINIMUM 32 |
| 5447018c | 75 | |
| e05aebe9 | 76 | /* We can support this. */ |
| 20c428fd JB |
77 | #define CLASH_DETECTION |
| 78 | ||
| e05aebe9 | 79 | /* Define HAVE_PTYS if the system supports pty devices. */ |
| 20c428fd | 80 | #define HAVE_PTYS |
| 5447018c | 81 | #define HAVE_TERMIOS |
| 20c428fd JB |
82 | |
| 83 | /* It is possible to receive SIGCHLD when there are no children | |
| 84 | waiting, because a previous waitsys(2) cleaned up the carcass of child | |
| 85 | without clearing the SIGCHLD pending info. So, use a non-blocking | |
| 86 | wait3 instead, which maps to waitpid(2) in SysVr4. */ | |
| 20c428fd | 87 | #define wait3(status, options, rusage) \ |
| 5bf62b08 | 88 | waitpid ((pid_t) -1, (status), (options)) |
| 20c428fd JB |
89 | #define WRETCODE(w) (w >> 8) |
| 90 | ||
| 91 | /* TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY | |
| 92 | subprocesses the usual way. But TIOCSIGNAL does work for PTYs, and | |
| 93 | this is all we need. */ | |
| 20c428fd JB |
94 | #define TIOCSIGSEND TIOCSIGNAL |
| 95 | ||
| 96 | /* This change means that we don't loop through allocate_pty too many | |
| e05aebe9 | 97 | times in the (rare) event of a failure. */ |
| 20c428fd JB |
98 | #define FIRST_PTY_LETTER 'z' |
| 99 | ||
| e05aebe9 | 100 | /* This sets the name of the master side of the PTY. */ |
| 20c428fd JB |
101 | #define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptmx"); |
| 102 | ||
| e05aebe9 | 103 | /* Push various streams modules onto a PTY channel. */ |
| 20c428fd JB |
104 | #define SETUP_SLAVE_PTY \ |
| 105 | if (ioctl (xforkin, I_PUSH, "ptem") == -1) \ | |
| 106 | fatal ("ioctl I_PUSH ptem", errno); \ | |
| 107 | if (ioctl (xforkin, I_PUSH, "ldterm") == -1) \ | |
| 108 | fatal ("ioctl I_PUSH ldterm", errno); \ | |
| 109 | if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) \ | |
| 110 | fatal ("ioctl I_PUSH ttcompat", errno); | |
| 111 | ||
| e05aebe9 | 112 | /* This definition was suggested for next release. So give it a try. */ |
| bd307392 | 113 | #define HAVE_SOCKETS |
| 5cb70bb5 | 114 | |
| ab5796a9 MB |
115 | /* arch-tag: 1a0ed909-5faa-434b-b7c3-9d86c63d53a6 |
| 116 | (do not change this comment) */ |