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20c428fd | 1 | /* Definitions file for GNU Emacs running on AT&T's System V Release 4 |
bd307392 | 2 | Copyright (C) 1987, 1990 Free Software Foundation, Inc. |
20c428fd JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
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6 | GNU Emacs is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by | |
17385adc | 8 | the Free Software Foundation; either version 2, or (at your option) |
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9 | any later version. |
10 | ||
20c428fd | 11 | GNU Emacs is distributed in the hope that it will be useful, |
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12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
20c428fd JB |
19 | |
20 | /* This file written by James Van Artsdalen of Dell Computer Corporation. | |
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21 | * james@bigtex.cactus.org. Subsequently improved for Dell 2.2 by Eric |
22 | * S. Raymond <esr@snark.thyrsus.com>. | |
20c428fd JB |
23 | */ |
24 | ||
25 | /* Use the SysVr3 file for at least base configuration. */ | |
26 | ||
72a8c21e | 27 | #include "usg5-3.h" |
20c428fd JB |
28 | |
29 | #define USG5_4 | |
30 | ||
4042e886 RS |
31 | /* On most SVR4 systems, gettimeofday takes one arg |
32 | and the compiler might crash. */ | |
33 | #define GETTIMEOFDAY_ONE_ARGUMENT | |
34 | ||
20c428fd JB |
35 | /* We do have multiple jobs. Handle ^Z. */ |
36 | ||
37 | #undef NOMULTIPLEJOBS | |
38 | ||
c21d3ee2 RS |
39 | #define LIBS_SYSTEM -lsocket -lnsl -lelf |
40 | #define ORDINARY_LINK | |
20c428fd | 41 | |
5cb70bb5 | 42 | #if 0 |
5447018c JB |
43 | #ifdef ORDINARY_LINK |
44 | #define LIB_STANDARD -lc /usr/ucblib/libucb.a | |
45 | #else | |
c21d3ee2 RS |
46 | #define START_FILES pre-crt0.o /usr/ccs/lib/crt1.o /usr/ccs/lib/crti.o /usr/ccs/lib/values-Xt.o |
47 | #define LIB_STANDARD -lc /usr/ucblib/libucb.a /usr/ccs/lib/crtn.o | |
48 | #endif | |
5cb70bb5 RS |
49 | #else |
50 | ||
51 | #ifdef ORDINARY_LINK | |
52 | #define LIB_STANDARD | |
53 | #else | |
54 | #define START_FILES pre-crt0.o /usr/ccs/lib/crt1.o /usr/ccs/lib/crti.o /usr/ccs/lib/values-Xt.o | |
55 | #define LIB_STANDARD -lc /usr/ccs/lib/crtn.o | |
56 | #endif | |
57 | #endif | |
20c428fd | 58 | |
5447018c JB |
59 | /* there are no -lg libraries on this system, and no libPW */ |
60 | ||
61 | #define LIBS_DEBUG | |
62 | #define LIBS_STANDARD -lc | |
63 | ||
bd307392 | 64 | /* No <sioctl.h> */ |
20c428fd | 65 | |
bd307392 | 66 | #define NO_SIOCTL_H |
20c428fd JB |
67 | |
68 | /* Undump with ELF */ | |
69 | ||
70 | #undef COFF | |
71 | ||
72 | #define UNEXEC unexelf.o | |
73 | ||
74 | /* Get FIONREAD from <sys/filio.h>. Get <sys/ttold.h> to get struct | |
75 | * tchars. But get <termio.h> first to make sure ttold.h doesn't | |
76 | * interfere. And don't try to use SIGIO yet. | |
77 | */ | |
78 | ||
79 | #ifdef emacs | |
80 | #include <sys/filio.h> | |
81 | #include <termio.h> | |
82 | #include <sys/ttold.h> | |
83 | #include <signal.h> | |
bd307392 JB |
84 | #include <sys/wait.h> |
85 | #include <sys/stream.h> | |
86 | #include <sys/stropts.h> | |
87 | #include <sys/termios.h> | |
20c428fd JB |
88 | #undef SIGIO |
89 | #endif | |
90 | ||
5447018c JB |
91 | /* Some SVr4s don't define NSIG in sys/signal.h for ANSI environments; |
92 | * instead, there's a system variable _sys_nsig. Unfortunately, we need the | |
93 | * constant to dimension an array. So wire in the appropriate value here. | |
94 | */ | |
95 | ||
96 | #ifndef NSIG | |
97 | #define NSIG 32 | |
98 | #endif | |
99 | ||
bd307392 | 100 | /* libc has this stuff, but not utimes. */ |
20c428fd | 101 | |
20c428fd JB |
102 | #define HAVE_SELECT |
103 | #define HAVE_TIMEVAL | |
20c428fd | 104 | |
20c428fd JB |
105 | /* <sys/stat.h> *defines* stat(2) as a static function. If "static" |
106 | * is blank, then many files will have a public definition for stat(2). | |
107 | */ | |
108 | ||
109 | #undef static | |
110 | ||
111 | /* We need bss_end from emacs.c for undumping */ | |
112 | ||
113 | #ifndef USG_SHARED_LIBRARIES | |
114 | #define USG_SHARED_LIBRARIES | |
115 | #endif | |
116 | ||
117 | /* We can support this */ | |
118 | ||
119 | #define CLASH_DETECTION | |
120 | ||
121 | #define HAVE_PTYS | |
5447018c | 122 | #define HAVE_TERMIOS |
2373f91f RS |
123 | #undef BROKEN_TIOCGWINSZ |
124 | #undef BROKEN_TIOCGETC | |
20c428fd JB |
125 | |
126 | /* It is possible to receive SIGCHLD when there are no children | |
127 | waiting, because a previous waitsys(2) cleaned up the carcass of child | |
128 | without clearing the SIGCHLD pending info. So, use a non-blocking | |
129 | wait3 instead, which maps to waitpid(2) in SysVr4. */ | |
130 | ||
131 | #define HAVE_WAIT_HEADER | |
132 | #define WAITTYPE int | |
133 | #define wait3(status, options, rusage) \ | |
134 | waitpid((pid_t) -1, (status), (options)) | |
135 | #define WRETCODE(w) (w >> 8) | |
136 | ||
137 | /* TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY | |
138 | subprocesses the usual way. But TIOCSIGNAL does work for PTYs, and | |
139 | this is all we need. */ | |
140 | ||
141 | #define TIOCSIGSEND TIOCSIGNAL | |
142 | ||
143 | /* This change means that we don't loop through allocate_pty too many | |
144 | times in the (rare) event of a failure. */ | |
145 | ||
146 | #undef FIRST_PTY_LETTER | |
147 | #define FIRST_PTY_LETTER 'z' | |
148 | ||
149 | /* This sets the name of the master side of the PTY. */ | |
150 | ||
151 | #define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptmx"); | |
152 | ||
153 | /* This sets the name of the slave side of the PTY. On SysVr4, | |
154 | grantpt(3) forks a subprocess, so keep sigchld_handler() from | |
155 | intercepting that death. If any child but grantpt's should die | |
156 | within, it should be caught after sigrelse(2). */ | |
157 | ||
158 | #define PTY_TTY_NAME_SPRINTF \ | |
159 | { \ | |
160 | char *ptsname(), *ptyname; \ | |
161 | \ | |
162 | sighold(SIGCLD); \ | |
163 | if (grantpt(fd) == -1) \ | |
164 | fatal("could not grant slave pty"); \ | |
165 | sigrelse(SIGCLD); \ | |
166 | if (unlockpt(fd) == -1) \ | |
167 | fatal("could not unlock slave pty"); \ | |
168 | if (!(ptyname = ptsname(fd))) \ | |
169 | fatal ("could not enable slave pty"); \ | |
170 | strncpy(pty_name, ptyname, sizeof(pty_name)); \ | |
171 | pty_name[sizeof(pty_name) - 1] = 0; \ | |
172 | } | |
173 | ||
174 | /* Push various streams modules onto a PTY channel. */ | |
175 | ||
176 | #define SETUP_SLAVE_PTY \ | |
177 | if (ioctl (xforkin, I_PUSH, "ptem") == -1) \ | |
178 | fatal ("ioctl I_PUSH ptem", errno); \ | |
179 | if (ioctl (xforkin, I_PUSH, "ldterm") == -1) \ | |
180 | fatal ("ioctl I_PUSH ldterm", errno); \ | |
181 | if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) \ | |
182 | fatal ("ioctl I_PUSH ttcompat", errno); | |
183 | ||
5447018c | 184 | /* Undo the SVr3 X11 library definition */ |
8c64cf16 | 185 | #undef LIB_X11_LIB |
5447018c | 186 | |
bd307392 JB |
187 | /* The definition of this in s-usg5-3.h is not needed in 5.4. */ |
188 | /* liblnsl_s should never be used. The _s suffix implies a shared | |
189 | library, as opposed to a DLL. Share libraries were used in SVR3, and are | |
190 | available only in order to allow SVR3 binaries to run. They should not be | |
191 | linked in to new binaries. -- caraway!pinkas@caraway.intel.com. */ | |
192 | #undef LIBX10_SYSTEM | |
20c428fd | 193 | #undef LIBX11_SYSTEM |
bd307392 JB |
194 | |
195 | /* Tell x11term.c and keyboard.c we have the system V streams feature. */ | |
196 | #define SYSV_STREAMS | |
197 | ||
198 | /* This definition was suggested for next release. | |
199 | So give it a try. */ | |
200 | #define HAVE_SOCKETS | |
5cb70bb5 | 201 | |
6d1e5a96 | 202 | #define bcopy(src,dst,n) memmove(dst,src,n) |
5cb70bb5 RS |
203 | #define bcmp(src,dst,n) memcmp(src,dst,n) |
204 | #define bzero(s,n) memset(s,0,n) |