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annotate src/s/usg5-4.h @ 5940:c608d4b0b75e cygwin64 tip

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rescue lost branch from 64bit.backup
author Henry Thompson <ht@markup.co.uk>
date Thu, 16 Dec 2021 18:48:58 +0000
parents 1f0b15040456
children
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023b83f4e54b [xemacs-hg @ 2001-06-10 10:42:16 by ben]
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1 /* Definitions file for XEmacs running on AT&T's System V Release 4
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2 Copyright (C) 1987, 1990 Free Software Foundation, Inc.
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3
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023b83f4e54b [xemacs-hg @ 2001-06-10 10:42:16 by ben]
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4 This file is part of XEmacs.
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5
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6 XEmacs is free software: you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation, either version 3 of the License, or (at your
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9 option) any later version.
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10
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 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. If not, see <http://www.gnu.org/licenses/>. */
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18
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19 /* Synced up with: FSF 23.1.92. */
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20 /* Synced by: Ben Wing, 2-18-10. */
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21
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22 /* This file written by James Van Artsdalen of Dell Computer Corporation.
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23 * james@bigtex.cactus.org. Subsequently improved for Dell 2.2 by Eric
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24 * S. Raymond <esr@snark.thyrsus.com>.
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25 */
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26
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27 #define USG /* System III, System V, etc */
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28 #define USG5
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29 #define USG5_4
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30
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31 /* SYSTEM_TYPE should indicate the kind of system you are using.
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32 * It sets the Lisp variable system-type. */
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33
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34 #define SYSTEM_TYPE "usg-unix-v"
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35
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36 /* Delete HAVE_TERMIO, SYSV_SYSTEM_DIR, KERNEL_FILE, LDAV_SYMBOL,
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37 sigsetmask, _setjmp, _longjmp, HAVE_INDEX, HAVE_RINDEX, TERMINFO,
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38 HAVE_SYSV_SIGPAUSE, BSTRING, SIGTYPE -- not used in XEmacs or found by
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39 configure */
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40
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41 /* Letter to use in finding device name of first pty,
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42 * if system supports pty's. 'p' means it is /dev/ptyp0 */
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43
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44 #define FIRST_PTY_LETTER 'z'
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45
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46 /* define MAIL_USE_FLOCK if the mailer uses flock
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47 * to interlock access to /usr/spool/mail/$USER.
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48 * The alternative is that a lock file named
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49 * /usr/spool/mail/$USER.lock. */
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50
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51 /* #define MAIL_USE_FLOCK */
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52
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53 /* Special hacks needed to make Emacs run on this system. */
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54
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55 /* On USG systems the system calls are interruptible by signals
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56 * that the user program has elected to catch. Thus the system call
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57 * must be retried in these cases. To handle this without massive
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58 * changes in the source code, we remap the standard system call names
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59 * to names for our own functions in sysdep.c that do the system call
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60 * with retries. */
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61
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62 #define INTERRUPTIBLE_OPEN
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63 #define INTERRUPTIBLE_IO
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64
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65 /* Compiler bug bites on many systems when default ADDR_CORRECT is used. */
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66
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67 #define ADDR_CORRECT(x) (x)
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68
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69 /* Prevent -lg from being used for debugging. Not implemented? */
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70
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71 #define LIBS_DEBUG
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72
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73 /* 5.3 apparently makes close() interruptible */
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74
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75 #define INTERRUPTIBLE_CLOSE
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76
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77 /* Apparently -lg is provided in 5.3 */
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78
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79 #undef LIBS_DEBUG
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80
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81 /* Enable support for shared libraries in unexec. */
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82
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83 #define USG_SHARED_LIBRARIES
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84
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85 #define LIBS_SYSTEM "-lsocket -lnsl -lelf"
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86 #define ORDINARY_LINK
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87 #define LIB_STANDARD
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88
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89 /* there are no -lg libraries on this system, and no libPW */
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90
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91 /* XEmacs deleted LIBS_DEBUG, LIB_STANDARD */
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92
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93 /* No <sioctl.h> */
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94
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95 #define NO_SIOCTL_H
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96
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97 #define UNEXEC "unexelf.o"
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98
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99 /* Get <sys/ttold.h> to get struct
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100 * tchars. But get <termio.h> first to make sure ttold.h doesn't
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101 * interfere.
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102 */
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103
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104 #ifndef NOT_C_CODE
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105 #include <sys/wait.h>
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106 #endif
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107
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108 #ifdef emacs
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109 #include <sys/filio.h>
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110 #include <termio.h>
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111 #include <sys/ttold.h>
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112 #include <sys/stream.h>
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113 #include <sys/termios.h>
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114 #endif
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115
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116 /* This sets the name of the master side of the PTY. */
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117
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118 #define PTY_NAME_SPRINTF qxestrcpy_ascii (pty_name, "/dev/ptmx");
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119
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120 /* This sets the name of the slave side of the PTY. On SysVr4,
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121 grantpt(3) forks a subprocess, so keep sigchld_handler() from
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122 intercepting that death. If any child but grantpt's should die
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123 within, it should be caught after EMACS_UNBLOCK_SIGNAL. */
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124
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125 /* XEmacs change */
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126 #ifndef NOT_C_CODE
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127 # if !__STDC__ && !defined(STDC_HEADERS)
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128 char *ptsname ();
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129 # endif
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130 #endif
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131
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132 #define PTY_TTY_NAME_SPRINTF \
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133 { \
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134 char *ptyname; \
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135 \
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136 EMACS_BLOCK_SIGCHLD; \
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137 if (grantpt (fd) == -1) \
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138 { close (fd); return -1; } \
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139 EMACS_UNBLOCK_SIGCHLD; \
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140 if (unlockpt (fd) == -1) \
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141 { close (fd); return -1; } \
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142 if (!(ptyname = ptsname (fd))) \
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143 { close (fd); return -1; } \
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144 qxestrncpy_ascii (pty_name, ptyname, \
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145 sizeof (pty_name)); \
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146 pty_name[sizeof (pty_name) - 1] = 0; \
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147 }
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148
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149 /* Push various streams modules onto a PTY channel. */
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150
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151 #define SETUP_SLAVE_PTY \
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152 if (ioctl (xforkin, I_PUSH, "ptem") == -1) \
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153 fatal ("ioctl I_PUSH ptem: errno %d\n", errno); \
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154 if (ioctl (xforkin, I_PUSH, "ldterm") == -1) \
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155 fatal ("ioctl I_PUSH ldterm: errno %d\n", errno); \
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156 if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) \
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157 fatal ("ioctl I_PUSH ttcompat: errno %d\n", errno);
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158
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159 /* Tell x11term.c and keyboard.c we have the system V streams feature. */
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160 #define SYSV_STREAMS
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161 /* On Some SysV System , w3 freeze. If freeze your xemacs , Add below definition */
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162 /* This definition added by Shogo Fujii(shogo@bsd1.kbnes.nec.co.jp) */
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163 #define PROCESS_IO_BLOCKING