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1 | /* Definitions file for GNU Emacs running on AT&T's System V Release 3 |
2 | Copyright (C) 1987 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GNU Emacs. | |
5 | ||
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 | |
8 | the Free Software Foundation; either version 1, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
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. */ | |
19 | ||
20 | ||
21 | /* | |
22 | * Define symbols to identify the version of Unix this is. | |
23 | * Define all the symbols that apply correctly. | |
24 | */ | |
25 | ||
26 | #define USG /* System III, System V, etc */ | |
27 | ||
28 | #define USG5 | |
29 | ||
30 | /* SYSTEM_TYPE should indicate the kind of system you are using. | |
31 | It sets the Lisp variable system-type. */ | |
32 | ||
33 | #define SYSTEM_TYPE "usg-unix-v" | |
34 | ||
35 | /* nomultiplejobs should be defined if your system's shell | |
36 | does not have "job control" (the ability to stop a program, | |
37 | run some other program, then continue the first one). */ | |
38 | ||
39 | #define NOMULTIPLEJOBS | |
40 | ||
41 | /* Default is to set interrupt_input to 0: don't do input buffering within Emacs */ | |
42 | ||
43 | /* #define INTERRUPT_INPUT */ | |
44 | ||
45 | /* Letter to use in finding device name of first pty, | |
46 | if system supports pty's. 'p' means it is /dev/ptyp0 */ | |
47 | ||
48 | #define FIRST_PTY_LETTER 'p' | |
49 | ||
50 | /* | |
51 | * Define HAVE_TERMIO if the system provides sysV-style ioctls | |
52 | * for terminal control. | |
53 | */ | |
54 | ||
55 | #define HAVE_TERMIO | |
56 | ||
57 | /* | |
58 | * Define HAVE_TIMEVAL if the system supports the BSD style clock values. | |
59 | * Look in <sys/time.h> for a timeval structure. | |
60 | */ | |
61 | ||
62 | /* #define HAVE_TIMEVAL */ | |
63 | ||
64 | /* | |
65 | * Define HAVE_SELECT if the system supports the `select' system call. | |
ef15f270 | 66 | * SVr3.2 X ports include an emulation. |
20c428fd JB |
67 | */ |
68 | ||
ef15f270 JB |
69 | #ifdef HAVE_X_WINDOWS |
70 | #define HAVE_SELECT | |
71 | #endif /* HAVE_X_WINDOWS */ | |
20c428fd JB |
72 | |
73 | /* | |
74 | * Define HAVE_PTYS if the system supports pty devices. | |
75 | */ | |
76 | ||
77 | /* Some versions of V.3 have this, but not all. | |
78 | #define HAVE_PTYS | |
79 | #define SYSV_PTYS */ | |
80 | ||
81 | /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets. */ | |
82 | ||
83 | /* #define HAVE_SOCKETS */ | |
84 | ||
85 | /* | |
86 | * Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate | |
87 | * The 4.2 opendir, etc., library functions. | |
88 | */ | |
89 | ||
90 | /* #define NONSYSTEM_DIR_LIBRARY */ | |
91 | ||
92 | /* | |
93 | * Define SYSV_SYSTEM_DIR to use the V.3 getdents/readir | |
94 | * library functions. Almost, but not quite the same as | |
95 | * the 4.2 functions | |
96 | */ | |
97 | #define SYSV_SYSTEM_DIR | |
98 | ||
99 | /* Define this symbol if your system has the functions bcopy, etc. */ | |
100 | ||
101 | /* #define BSTRING */ | |
102 | ||
103 | /* subprocesses should be defined if you want to | |
104 | have code for asynchronous subprocesses | |
105 | (as used in M-x compile and M-x shell). | |
106 | This is supposed to work now on system V release 2. */ | |
107 | ||
108 | #define subprocesses | |
109 | ||
110 | /* If your system uses COFF (Common Object File Format) then define the | |
111 | preprocessor symbol "COFF". */ | |
112 | ||
113 | #define COFF | |
114 | ||
115 | /* define MAIL_USE_FLOCK if the mailer uses flock | |
116 | to interlock access to /usr/spool/mail/$USER. | |
117 | The alternative is that a lock file named | |
118 | /usr/spool/mail/$USER.lock. */ | |
119 | ||
120 | /* #define MAIL_USE_FLOCK */ | |
121 | ||
122 | /* Define CLASH_DETECTION if you want lock files to be written | |
123 | so that Emacs can tell instantly when you try to modify | |
124 | a file that someone else has modified in his Emacs. */ | |
125 | ||
126 | /* #define CLASH_DETECTION */ | |
127 | ||
128 | /* Define SHORTNAMES if the C compiler can distinguish only | |
129 | short names. It means that the stuff in ../shortnames | |
130 | must be run to convert the long names to short ones. */ | |
131 | ||
132 | /* #define SHORTNAMES */ | |
133 | ||
134 | /* We use the Berkeley (and usg5.2.2) interface to nlist. */ | |
135 | ||
136 | #define NLIST_STRUCT | |
137 | ||
138 | /* The file containing the kernel's symbol table is called /unix. */ | |
139 | ||
140 | #define KERNEL_FILE "/unix" | |
141 | ||
142 | /* The symbol in the kernel where the load average is found | |
143 | is named avenrun. */ | |
144 | ||
145 | #define LDAV_SYMBOL "avenrun" | |
146 | ||
147 | /* Define this if system V IPC is available. */ | |
148 | ||
149 | #define HAVE_SYSVIPC | |
150 | \f | |
151 | /* Special hacks needed to make Emacs run on this system. */ | |
152 | ||
153 | /* | |
154 | * Make the sigsetmask function go away. Don't know what the | |
155 | * ramifications of this are, but doesn't seem possible to | |
156 | * emulate it properly anyway at this point. | |
157 | */ | |
158 | ||
159 | #define sigsetmask(mask) /* Null expansion */ | |
160 | ||
161 | /* setjmp and longjmp can safely replace _setjmp and _longjmp, | |
162 | but they will run slower. */ | |
163 | ||
164 | #define _setjmp setjmp | |
165 | #define _longjmp longjmp | |
166 | ||
167 | /* On USG systems the system calls are interruptable by signals | |
168 | that the user program has elected to catch. Thus the system call | |
169 | must be retried in these cases. To handle this without massive | |
170 | changes in the source code, we remap the standard system call names | |
171 | to names for our own functions in sysdep.c that do the system call | |
172 | with retries. */ | |
173 | ||
174 | #define read sys_read | |
175 | #define write sys_write | |
176 | #define open sys_open | |
177 | #define close sys_close | |
178 | ||
179 | #define INTERRUPTIBLE_OPEN | |
180 | #define INTERRUPTIBLE_CLOSE | |
181 | #define INTERRUPTIBLE_IO | |
182 | ||
183 | /* On USG systems these have different names */ | |
184 | ||
185 | #define index strchr | |
186 | #define rindex strrchr | |
187 | ||
188 | /* USG systems tend to put everything declared static | |
189 | into the initialized data area, which becomes pure after dumping Emacs. | |
190 | Foil this. Emacs carefully avoids static vars inside functions. */ | |
191 | ||
192 | #define static | |
193 | ||
194 | /* Compiler bug bites on many systems when default ADDR_CORRECT is used. */ | |
195 | ||
196 | #define ADDR_CORRECT(x) (x) | |
197 | ||
20c428fd JB |
198 | /* Use terminfo instead of termcap. */ |
199 | ||
200 | #define TERMINFO | |
201 | ||
ef15f270 JB |
202 | /* AT&T SVr3 X wants to be linked with shared libraries */ |
203 | ||
204 | #define LIB_X11_LIB -lX11_s | |
205 | ||
20c428fd JB |
206 | /* X needs to talk on the network, so search the network library. */ |
207 | ||
208 | #define LIBX10_SYSTEM -lnsl_s | |
ef15f270 | 209 | #define LIBX11_SYSTEM -lnls -lnsl_s -lpt -lc_s |
20c428fd JB |
210 | |
211 | /* Some variants have TIOCGETC, but the structures to go with it | |
212 | are not declared. */ | |
213 | ||
214 | #define BROKEN_TIOCGETC | |
215 | ||
ef15f270 JB |
216 | /* Some variants have TIOCGWINSZ, but the structures to go with it |
217 | are not declared. */ | |
218 | ||
219 | #define BROKEN_TIOCGWINSZ | |
220 | ||
221 | /* SVr3 does not have utimes(2) */ | |
222 | ||
223 | #define USE_UTIME | |
224 | ||
225 | /* If we're using the System V X port, BSD bstring functions will be handy */ | |
226 | ||
227 | #ifdef HAVE_X_WINDOWS | |
228 | #define BSTRING | |
229 | #endif /* HAVE_X_WINDOWS */ | |
230 | ||
20c428fd JB |
231 | /* Enable support for shared libraries in unexec. */ |
232 | ||
233 | #define USG_SHARED_LIBRARIES | |
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234 | |
235 | /* On USG systems signal handlers return void */ | |
236 | ||
237 | #define SIGTYPE void |