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1.1 root 1: /* Definitions file for GNU Emacs running on Silicon Graphics system 3.6.
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
27: #define USG5
28: #define IRIS
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 "silicon-graphics-unix"
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. 'a' means it is /dev/ptya0 */
47:
48: #define FIRST_PTY_LETTER 'a'
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: /* `utime' system call doesn't understand timevals. */
65:
66: #define IRIS_UTIME
67:
68: /*
69: * Define HAVE_SELECT if the system supports the `select' system call.
70: */
71:
72: #define HAVE_SELECT
73:
74: /*
75: * Define HAVE_PTYS if the system supports pty devices.
76: */
77:
78: #define HAVE_PTYS
79:
80: /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets. */
81:
82: #define HAVE_SOCKETS
83:
84: /*
85: * Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
86: * The 4.2 opendir, etc., library functions.
87: */
88:
89: /* #define NONSYSTEM_DIR_LIBRARY */
90:
91: /* Define this symbol if your system has the functions bcopy, etc. */
92:
93: #define BSTRING
94:
95: /* subprocesses should be defined if you want to
96: have code for asynchronous subprocesses
97: (as used in M-x compile and M-x shell).
98: This is generally OS dependent, and not supported
99: under most USG systems. */
100:
101: #define subprocesses
102:
103: /* If your system uses COFF (Common Object File Format) then define the
104: preprocessor symbol "COFF". */
105:
106: /* #define COFF */
107:
108: /* define MAIL_USE_FLOCK if the mailer uses flock
109: to interlock access to /usr/spool/mail/$USER.
110: The alternative is that a lock file named
111: /usr/spool/mail/$USER.lock. */
112:
113: /* #define MAIL_USE_FLOCK */
114:
115: /* Define CLASH_DETECTION if you want lock files to be written
116: so that Emacs can tell instantly when you try to modify
117: a file that someone else has modified in his Emacs. */
118:
119: /* #define CLASH_DETECTION */
120:
121: /* We use the Berkeley (and usg5.2.2) interface to nlist. */
122:
123: #define NLIST_STRUCT
124:
125: /* The file containing the kernel's symbol table is called /vmunix. */
126:
127: #define KERNEL_FILE "/vmunix"
128:
129: /* The symbol in the kernel where the load average is found
130: is named _avenrun. */
131:
132: #define LDAV_SYMBOL "_avenrun"
133:
134:
135: /* Special hacks needed to make Emacs run on this system. */
136:
137: /*
138: * Make the sigsetmask function go away. Don't know what the
139: * ramifications of this are, but doesn't seem possible to
140: * emulate it properly anyway at this point.
141: */
142:
143: #define sigsetmask(mask) /* Null expansion */
144: #define sigblock(x) x
145:
146: /* The IRIS defines SIGIO in signal.h, but doesn't implement it. */
147: #undef SIGIO
148:
149: #define LIBS_MACHINE -lbsd -ldbm -lPW
150: #define C_SWITCH_MACHINE -I/usr/include/bsd
151:
152: /* setjmp and longjmp can safely replace _setjmp and _longjmp,
153: but they will run slower. */
154:
155: #define _setjmp setjmp
156: #define _longjmp longjmp
157:
158: /* On USG systems the system calls are interruptable by signals
159: that the user program has elected to catch. Thus the system call
160: must be retried in these cases. To handle this without massive
161: changes in the source code, we remap the standard system call names
162: to names for our own functions in sysdep.c that do the system call
163: with retries. */
164:
165: #define read sys_read
166: #define open sys_open
167: #define write sys_write
168:
169: #define INTERRUPTABLE_OPEN
170: #define INTERRUPTABLE_IO
171:
172: /* On USG systems these have different names */
173:
174: #define index strchr
175: #define rindex strrchr
176:
177: /* USG systems tend to put everything declared static
178: into the initialized data area, which becomes pure after dumping Emacs.
179: Foil this. Emacs carefully avoids static vars inside functions. */
180:
181: /* #define static */
182:
183: /* Compiler bug bites on many systems when default ADDR_CORRECT is used. */
184:
185: #define ADDR_CORRECT(x) (int)((char *)(x) - (char*)0)
186:
187: /* some errno.h's don't actually allocate the variable itself */
188:
189: #define NEED_ERRNO
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