annotate src/s/ptx.h @ 535:c69610198c35

[xemacs-hg @ 2001-05-14 04:52:02 by martinb] Eliminate the need to define HAVE_PTYS in s&m files.
author martinb
date Mon, 14 May 2001 04:52:49 +0000
parents 576fb035e263
children 023b83f4e54b
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1 /* Definitions file for GNU Emacs running on Sequent DYNIX/ptx 1.x/2.x
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2 Copyright (C) 1987, 1990 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 /* This file was written by Bill Burton <billb@progress.com>. Parts were
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24 adapted from m-ptx1-2.h and process.c as distributed with the Emacs 18.57
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25 on the Sequent Public software tape. Other parts were adapted from
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26 usg5-4.h. */
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27
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28 /* Use the SysVr3 file for base configuration even though much is changed. */
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29 #define DONT_DEFINE_NO_REMAP /* `static' hack not needed */
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30 #include "usg5-3.h"
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31
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32 /* Undo these defines because they are incorrect or need to be changed. */
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33 #undef USG_SHARED_LIBRARIES
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34
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35 /* PTX has System V streams. */
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36 #define SYSV_STREAMS
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37
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38 /* Leave out -lPW since it conflicts with term.o and because we're not sure
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39 if the alloca found there by autoconf should be trusted on PTX. */
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40 #define LIB_STANDARD "-lc"
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41
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42 #ifndef HAVE_SOCKETS /* determined by configure */
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43 #define NO_SUBPROCESSES
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44 #endif
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45
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46 #ifdef HAVE_X_WINDOWS
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47
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48 /* This is also defined so that lib-src/profile can link. */
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49 #define LIBS_SYSTEM "-lseq"
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50
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51 #else /* ! HAVE_X_WINDOWS */
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52
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53 #ifdef HAVE_SOCKETS
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54 #define LIBS_SYSTEM "-lsocket -linet -lnsl -lseq"
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55 #else
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56 #define LIBS_SYSTEM "-lseq"
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57 #endif
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58
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59 #endif /* ! HAVE_X_WINDOWS */
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60
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61 /* No <sioctl.h> */
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62 #define NO_SIOCTL_H
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63
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64 /* If we have X windows, configure should find gettimeofday in -lX11.
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65 Since we emulate gettimeofday below, we really have it anyway. */
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66 #ifndef HAVE_GETTIMEOFDAY
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67 #define HAVE_GETTIMEOFDAY
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68 #endif
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69
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70 #ifdef emacs
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71 #include <sys/conf.h>
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72
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73 /*#define BROKEN_SIGIO*/ /* SIGIO is already undef'd elsewhere. PTX
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74 has SIGIO, but it's just an alias for
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75 SIGPOLL. */
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76
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77 /* Emulate gettimeofday() except for the time zone information which Emacs
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78 doesn't use anyway. Get_process_stats() is in -lseq. */
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79 #include <sys/procstats.h>
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80 #define gettimeofday(tp, tzp) get_process_stats (tp, PS_SELF, 0, 0)
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81
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82 /* Define timezone since it's not in sys/time.h. Unfortunately, this causes
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83 trouble when building with X since this struct is defined in
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84 <X11/Xos.h>. */
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85 struct timezone
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86 {
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87 int tz_minuteswest;
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88 int tz_dsttime;
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89 };
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90
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91 /* Unfortunately, this define is not checked in all files including
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92 <X11/Xos.h> so we can't use it. */
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93 /* #define XOS_NEEDS_TIME_H */
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94
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95 /* In ptx/WINDOWS, this prevents problems with the timezone struct being
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96 redefined in <X11/Xos.h>. It seems the necessary include files are
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97 included via systime.h so leaving them out here is not a problem. This
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98 may not work in X11R5 or X11R6. */
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99 #define __TIMEVAL__
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100
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101 #endif /* emacs */
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102
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103 /* PTX has termios */
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104 #undef BROKEN_TIOCGWINSZ
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105 #undef BROKEN_TIOCGETC
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106
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107 /* Provide pty support which is defined into process.c:allocate_pty.
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108 Basic ideas for handling getpseudotty were lifted from process.c in
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109 Emacs 18.57 included on the Sequent Public Software tape. However, this
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110 implementation bears almost no resemblance to the original and does not
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111 require that process.c be patched. */
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112 #define PTY_ITERATION \
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113 char *mastername, *slavename; \
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114 while (1)
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115
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116 #define PTY_OPEN \
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117 if (failed_count++ >= 5) break; \
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118 if ((fd = getpseudotty (&slavename, &mastername)) < 0) { \
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119 error("Out of ptys."); \
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120 continue; \
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121 } \
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122 strcpy (pty_name, slavename);
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123
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124 /* Define these to prevent the default logic in process.c:allocate_pty
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125 from being used. */
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126 #define PTY_NAME_SPRINTF
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127 #define PTY_TTY_NAME_SPRINTF
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128
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129 /* PTX doesn't seem to have memmove. */
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130 #define MEMMOVE_MISSING