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1 /* Definitions file for GNU Emacs running on RTU 3.0, ucb universe.
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2 Copyright (C) 1986 Free Software Foundation, Inc.
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3
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4 This file is part of GNU Emacs.
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5
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6 GNU Emacs is free software; you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 2, or (at your option)
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9 any later version.
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10
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11 GNU Emacs is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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21 /* Synched up with: FSF 19.31. */
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22
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23 /*
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24 * Define symbols to identify the version of Unix this is.
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25 * Define all the symbols that apply correctly.
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26 */
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27
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28 #define BSD4_2
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29 #define BSD
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30 #define RTU
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31
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32 /* SYSTEM_TYPE should indicate the kind of system you are using.
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33 It sets the Lisp variable system-type. */
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34
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35 #define SYSTEM_TYPE "rtu"
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36
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37 /* Letter to use in finding device name of first pty,
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38 if system supports pty's. 'a' means it is /dev/ptya0 */
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39
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40 #define FIRST_PTY_LETTER 'z' /* i.e. no PTY_LETTERs */
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41
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42 /*
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43 * Define HAVE_PTYS if the system supports pty devices.
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44 */
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45
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46 #define HAVE_PTYS
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47
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48 /* Define this macro if system defines a type `union wait'. */
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49
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50 #define HAVE_UNION_WAIT
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51
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52 /* The system library bcopy() is broken in RTU. For one thing, it expects
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53 the length to be less than 64k. */
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54 #define BROKEN_BCOPY
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55
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56 /* If your system uses COFF (Common Object File Format) then define the
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57 preprocessor symbol "COFF". */
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58
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59 #undef COFF
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60
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61 /* define MAIL_USE_FLOCK if the mailer uses flock
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62 to interlock access to /usr/spool/mail/$USER.
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63 The alternative is that a lock file named
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64 /usr/spool/mail/$USER.lock. */
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65
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66 #undef MAIL_USE_FLOCK
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67
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68 /* The symbol in the kernel where the load average is found
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69 is named _avenrun. */
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70
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71 #define LDAV_SYMBOL "_avenrun"
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72
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73 /* Special hacks needed to make Emacs run on this system. */
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74
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75 /* On RTU systems (like USG) the system calls are interruptible by signals
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76 that the user program has elected to catch. Thus the system call
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77 must be retried in these cases. To handle this without massive
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78 changes in the source code, we remap the standard system call names
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79 to names for our own functions in sysdep.c that do the system call
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80 with retries. */
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81
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82 #define INTERRUPTIBLE_OPEN
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83 #define INTERRUPTIBLE_IO
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84
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85 /* The "fsync" call on RTU versions 3.0 and 3.1 is badly broken!
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86 This hack below isn't the best solution, but without it this
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87 program will cause the whole system to hang! !@#$#%$ Masscomp! */
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88
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89 #define fsync(x) 0 /* "Comment out" fsync calls */
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90
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91 /* This is how to get the device name of the tty end of a pty. */
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92 #define PTY_TTY_NAME_SPRINTF \
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93 sprintf (pty_name, "/dev/ttyp%x", i);
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94
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95 /* This is how to get the device name of the control end of a pty. */
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96 #define PTY_NAME_SPRINTF \
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97 sprintf (pty_name, "/dev/pty%x", i);
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98
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99 /* Formerly "BSD_PGRPS" */
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100
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101 #define SIGIO_REQUIRES_SEPARATE_PROCESS_GROUP
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