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1.1 root 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 distributed in the hope that it will be useful,
7: but WITHOUT ANY WARRANTY. No author or distributor
8: accepts responsibility to anyone for the consequences of using it
9: or for whether it serves any particular purpose or works at all,
10: unless he says so in writing. Refer to the GNU Emacs General Public
11: License for full details.
12:
13: Everyone is granted permission to copy, modify and redistribute
14: GNU Emacs, but only under the conditions described in the
15: GNU Emacs General Public License. A copy of this license is
16: supposed to have been given to you along with GNU Emacs so you
17: can know your rights and responsibilities. It should be in a
18: file named COPYING. Among other things, the copyright notice
19: and this notice must be preserved on all copies. */
20:
21:
22: /*
23: * Define symbols to identify the version of Unix this is.
24: * Define all the symbols that apply correctly.
25: */
26:
27: #define USG /* System III, System V, etc */
28:
29: #define USG5
30:
31: /* SYSTEM_TYPE should indicate the kind of system you are using.
32: It sets the Lisp variable system-type. */
33:
34: #define SYSTEM_TYPE "usg-unix-v"
35:
36: /* nomultiplejobs should be defined if your system's shell
37: does not have "job control" (the ability to stop a program,
38: run some other program, then continue the first one). */
39:
40: #define NOMULTIPLEJOBS
41:
42: /* Default is to set interrupt_input to 0: don't do input buffering within Emacs */
43:
44: /* #define INTERRUPT_INPUT */
45:
46: /* Letter to use in finding device name of first pty,
47: if system supports pty's. 'p' means it is /dev/ptyp0 */
48:
49: #define FIRST_PTY_LETTER 'p'
50:
51: /*
52: * Define HAVE_TERMIO if the system provides sysV-style ioctls
53: * for terminal control.
54: */
55:
56: #define HAVE_TERMIO
57:
58: /*
59: * Define HAVE_TIMEVAL if the system supports the BSD style clock values.
60: * Look in <sys/time.h> for a timeval structure.
61: */
62:
63: /* #define HAVE_TIMEVAL */
64:
65: /*
66: * Define HAVE_SELECT if the system supports the `select' system call.
67: */
68:
69: /* #define HAVE_SELECT */
70:
71: /*
72: * Define HAVE_PTYS if the system supports pty devices.
73: */
74:
75: /* Some versions of V.3 have this, but not all.
76: #define HAVE_PTYS
77: #define SYSV_PTYS */
78:
79: /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets. */
80:
81: /* #define HAVE_SOCKETS */
82:
83: /*
84: * Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
85: * The 4.2 opendir, etc., library functions.
86: */
87:
88: /* #define NONSYSTEM_DIR_LIBRARY */
89:
90: /*
91: * Define SYSV_SYSTEM_DIR to use the V.3 getdents/readir
92: * library functions. Almost, but not quite the same as
93: * the 4.2 functions
94: */
95: #define SYSV_SYSTEM_DIR
96:
97: /* Define this symbol if your system has the functions bcopy, etc. */
98:
99: /* #define BSTRING */
100:
101: /* subprocesses should be defined if you want to
102: have code for asynchronous subprocesses
103: (as used in M-x compile and M-x shell).
104: This is supposed to work now on system V release 2. */
105:
106: #define subprocesses
107:
108: /* If your system uses COFF (Common Object File Format) then define the
109: preprocessor symbol "COFF". */
110:
111: #define COFF
112:
113: /* define MAIL_USE_FLOCK if the mailer uses flock
114: to interlock access to /usr/spool/mail/$USER.
115: The alternative is that a lock file named
116: /usr/spool/mail/$USER.lock. */
117:
118: /* #define MAIL_USE_FLOCK */
119:
120: /* Define CLASH_DETECTION if you want lock files to be written
121: so that Emacs can tell instantly when you try to modify
122: a file that someone else has modified in his Emacs. */
123:
124: /* #define CLASH_DETECTION */
125:
126: /* Define SHORTNAMES if the C compiler can distinguish only
127: short names. It means that the stuff in ../shortnames
128: must be run to convert the long names to short ones. */
129:
130: /* #define SHORTNAMES */
131:
132: /* We use the Berkeley (and usg5.2.2) interface to nlist. */
133:
134: #define NLIST_STRUCT
135:
136: /* The file containing the kernel's symbol table is called /unix. */
137:
138: #define KERNEL_FILE "/unix"
139:
140: /* The symbol in the kernel where the load average is found
141: is named avenrun. */
142:
143: #define LDAV_SYMBOL "avenrun"
144:
145: /* Define this if system V IPC is available. */
146:
147: #define HAVE_SYSVIPC
148:
149: /* Special hacks needed to make Emacs run on this system. */
150:
151: /*
152: * Make the sigsetmask function go away. Don't know what the
153: * ramifications of this are, but doesn't seem possible to
154: * emulate it properly anyway at this point.
155: */
156:
157: #define sigsetmask(mask) /* Null expansion */
158:
159: /* setjmp and longjmp can safely replace _setjmp and _longjmp,
160: but they will run slower. */
161:
162: #define _setjmp setjmp
163: #define _longjmp longjmp
164:
165: /* On USG systems the system calls are interruptable by signals
166: that the user program has elected to catch. Thus the system call
167: must be retried in these cases. To handle this without massive
168: changes in the source code, we remap the standard system call names
169: to names for our own functions in sysdep.c that do the system call
170: with retries. */
171:
172: #define read sys_read
173: #define write sys_write
174: #define open sys_open
175: #define close sys_close
176:
177: #define INTERRUPTABLE_OPEN
178: #define INTERRUPTABLE_CLOSE
179: #define INTERRUPTABLE_IO
180:
181: /* On USG systems these have different names */
182:
183: #define index strchr
184: #define rindex strrchr
185:
186: /* USG systems tend to put everything declared static
187: into the initialized data area, which becomes pure after dumping Emacs.
188: Foil this. Emacs carefully avoids static vars inside functions. */
189:
190: #define static
191:
192: /* Compiler bug bites on many systems when default ADDR_CORRECT is used. */
193:
194: #define ADDR_CORRECT(x) (x)
195:
196: /* Prevent -lg from being used for debugging. Not implemented? */
197:
198: #define LIBS_DEBUG
199:
200: /* Use terminfo instead of termcap. */
201:
202: #define TERMINFO
203:
204: /* X needs to talk on the network, so search the network library. */
205:
206: #define LIBX10_SYSTEM -lnsl_s
207: #define LIBX11_SYSTEM -lnsl_s
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