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1 | /* Definitions file for GNU Emacs running on AT&T's System V Release 2.0 |
2 | Copyright (C) 1985, 1986 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 | |
17385adc | 8 | the Free Software Foundation; either version 2, or (at your option) |
9b71f02b JB |
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 | ||
9b71f02b JB |
57 | /* |
58 | * Define HAVE_PTYS if the system supports pty devices. | |
59 | */ | |
60 | ||
61 | /* #define HAVE_PTYS */ | |
62 | ||
63 | /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets. */ | |
64 | ||
65 | /* #define HAVE_SOCKETS */ | |
66 | ||
67 | /* | |
68 | * Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate | |
69 | * The 4.2 opendir, etc., library functions. | |
70 | */ | |
71 | ||
72 | #define NONSYSTEM_DIR_LIBRARY | |
73 | ||
74 | /* Define this symbol if your system has the functions bcopy, etc. */ | |
75 | ||
76 | /* #define BSTRING */ | |
77 | ||
78 | /* subprocesses should be defined if you want to | |
79 | have code for asynchronous subprocesses | |
80 | (as used in M-x compile and M-x shell). | |
81 | This is supposed to work now on system V release 2. */ | |
82 | ||
83 | #define subprocesses | |
84 | ||
85 | /* If your system uses COFF (Common Object File Format) then define the | |
86 | preprocessor symbol "COFF". */ | |
87 | ||
88 | #define COFF | |
89 | ||
90 | /* define MAIL_USE_FLOCK if the mailer uses flock | |
91 | to interlock access to /usr/spool/mail/$USER. | |
92 | The alternative is that a lock file named | |
93 | /usr/spool/mail/$USER.lock. */ | |
94 | ||
95 | /* #define MAIL_USE_FLOCK */ | |
96 | ||
97 | /* Define CLASH_DETECTION if you want lock files to be written | |
98 | so that Emacs can tell instantly when you try to modify | |
99 | a file that someone else has modified in his Emacs. */ | |
100 | ||
101 | /* #define CLASH_DETECTION */ | |
102 | ||
103 | /* Define SHORTNAMES if the C compiler can distinguish only | |
104 | short names. It means that the stuff in ../shortnames | |
105 | must be run to convert the long names to short ones. */ | |
106 | ||
107 | /* #define SHORTNAMES */ | |
108 | ||
109 | /* We do NOT use the Berkeley (and usg5.2.2) interface to nlist. */ | |
110 | ||
111 | /* #define NLIST_STRUCT */ | |
112 | ||
113 | /* The file containing the kernel's symbol table is called /unix. */ | |
114 | ||
115 | #define KERNEL_FILE "/unix" | |
116 | ||
117 | /* The symbol in the kernel where the load average is found | |
118 | is named avenrun. */ | |
119 | ||
120 | #define LDAV_SYMBOL "avenrun" | |
121 | \f | |
122 | /* Special hacks needed to make Emacs run on this system. */ | |
123 | ||
124 | /* | |
125 | * Make the sigsetmask function go away. Don't know what the | |
126 | * ramifications of this are, but doesn't seem possible to | |
127 | * emulate it properly anyway at this point. | |
128 | */ | |
129 | ||
130 | #define sigsetmask(mask) /* Null expansion */ | |
131 | ||
132 | /* setjmp and longjmp can safely replace _setjmp and _longjmp, | |
133 | but they will run slower. */ | |
134 | ||
135 | #define _setjmp setjmp | |
136 | #define _longjmp longjmp | |
137 | ||
eb8c3be9 | 138 | /* On USG systems the system calls are interruptible by signals |
9b71f02b JB |
139 | that the user program has elected to catch. Thus the system call |
140 | must be retried in these cases. To handle this without massive | |
141 | changes in the source code, we remap the standard system call names | |
142 | to names for our own functions in sysdep.c that do the system call | |
143 | with retries. */ | |
144 | ||
145 | #define read sys_read | |
146 | #define open sys_open | |
147 | #define write sys_write | |
148 | ||
149 | #define INTERRUPTIBLE_OPEN | |
150 | #define INTERRUPTIBLE_IO | |
151 | ||
152 | /* On USG systems these have different names */ | |
153 | ||
154 | #define index strchr | |
155 | #define rindex strrchr | |
156 | ||
157 | /* USG systems tend to put everything declared static | |
158 | into the initialized data area, which becomes pure after dumping Emacs. | |
159 | Foil this. Emacs carefully avoids static vars inside functions. */ | |
160 | ||
161 | #define static | |
162 | ||
163 | /* Compiler bug bites on many systems when default ADDR_CORRECT is used. */ | |
164 | ||
165 | #define ADDR_CORRECT(x) (x) | |
166 | ||
167 | /* Prevent -lg from being used for debugging. Not implemented? */ | |
168 | ||
169 | #define LIBS_DEBUG | |
170 | ||
171 | /* Use terminfo instead of termcap. */ | |
172 | ||
173 | #define TERMINFO |