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comparison src/s/rtu.h @ 0:376386a54a3c r19-14

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Import from CVS: tag r19-14
author cvs
date Mon, 13 Aug 2007 08:45:50 +0200
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children 43dd3413c7c7
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-1:000000000000 0:376386a54a3c
1 /* Definitions file for GNU Emacs running on RTU 3.0, ucb universe.
2 Copyright (C) 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
8 the Free Software Foundation; either version 2, 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 XEmacs; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
20
21 /* Synched up with: FSF 19.31. */
22
23 /*
24 * Define symbols to identify the version of Unix this is.
25 * Define all the symbols that apply correctly.
26 */
27
28 #define BSD4_2
29 #define BSD
30 #define RTU
31
32 /* SYSTEM_TYPE should indicate the kind of system you are using.
33 It sets the Lisp variable system-type. */
34
35 #define SYSTEM_TYPE "rtu"
36
37 /* Letter to use in finding device name of first pty,
38 if system supports pty's. 'a' means it is /dev/ptya0 */
39
40 #define FIRST_PTY_LETTER 'z' /* i.e. no PTY_LETTERs */
41
42 /*
43 * Define HAVE_PTYS if the system supports pty devices.
44 */
45
46 #define HAVE_PTYS
47
48 /* Define this macro if system defines a type `union wait'. */
49
50 #define HAVE_UNION_WAIT
51
52 /* The system library bcopy() is broken in RTU. For one thing, it expects
53 the length to be less than 64k. */
54 #define BROKEN_BCOPY
55
56 /* If your system uses COFF (Common Object File Format) then define the
57 preprocessor symbol "COFF". */
58
59 #undef COFF
60
61 /* define MAIL_USE_FLOCK if the mailer uses flock
62 to interlock access to /usr/spool/mail/$USER.
63 The alternative is that a lock file named
64 /usr/spool/mail/$USER.lock. */
65
66 #undef MAIL_USE_FLOCK
67
68 /* The symbol in the kernel where the load average is found
69 is named _avenrun. */
70
71 #define LDAV_SYMBOL "_avenrun"
72
73 /* Special hacks needed to make Emacs run on this system. */
74
75 /* On RTU systems (like USG) the system calls are interruptible by signals
76 that the user program has elected to catch. Thus the system call
77 must be retried in these cases. To handle this without massive
78 changes in the source code, we remap the standard system call names
79 to names for our own functions in sysdep.c that do the system call
80 with retries. */
81
82 #define INTERRUPTIBLE_OPEN
83 #define INTERRUPTIBLE_IO
84
85 /* The "fsync" call on RTU versions 3.0 and 3.1 is badly broken!
86 This hack below isn't the best solution, but without it this
87 program will cause the whole system to hang! !@#$#%$ Masscomp! */
88
89 #define fsync(x) 0 /* "Comment out" fsync calls */
90
91 /* This is how to get the device name of the tty end of a pty. */
92 #define PTY_TTY_NAME_SPRINTF \
93 sprintf (pty_name, "/dev/ttyp%x", i);
94
95 /* This is how to get the device name of the control end of a pty. */
96 #define PTY_NAME_SPRINTF \
97 sprintf (pty_name, "/dev/pty%x", i);
98
99 /* Formerly "BSD_PGRPS" */
100
101 #define SIGIO_REQUIRES_SEPARATE_PROCESS_GROUP