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annotate src/os_unix.h @ 32669:448aef880252

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normalize line endings
author Christian Brabandt <cb@256bit.org>
date Mon, 26 Jun 2023 09:54:34 +0200
parents 8f0da069a311
children 695b50472e85
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
32669
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1 /* vi:set ts=8 sts=4 sw=4 noet:
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2 *
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3 * VIM - Vi IMproved by Bram Moolenaar
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4 *
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5 * Do ":help uganda" in Vim to read copying and usage conditions.
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6 * Do ":help credits" in Vim to see a list of people who contributed.
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7 */
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8
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9 /*
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10 * NextStep has a problem with configure, undefine a few things:
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11 */
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12 #ifdef NeXT
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13 # ifdef HAVE_UTIME
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14 # undef HAVE_UTIME
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15 # endif
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16 # ifdef HAVE_SYS_UTSNAME_H
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17 # undef HAVE_SYS_UTSNAME_H
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18 # endif
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19 #endif
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20
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21 #include <stdio.h>
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22 #include <ctype.h>
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23
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24 #ifdef VAXC
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25 # include <types.h>
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26 # include <stat.h>
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27 #else
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28 # include <sys/types.h>
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29 # include <sys/stat.h>
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30 #endif
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31
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32 #ifdef HAVE_STDLIB_H
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33 # include <stdlib.h>
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34 #endif
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35
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36 #ifdef __CYGWIN__
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37 # define WIN32UNIX // Compiling for Win32 using Unix files.
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38 # define BINARY_FILE_IO
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39
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40 # define CASE_INSENSITIVE_FILENAME
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41 # define USE_FNAME_CASE // Fix filename case differences.
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42 #endif
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43
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44 // On AIX 4.2 there is a conflicting prototype for ioctl() in stropts.h and
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45 // unistd.h. This hack should fix that (suggested by Jeff George).
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46 // But on AIX 4.3 it's alright (suggested by Jake Hamby).
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47 #if defined(FEAT_GUI) && defined(_AIX) && !defined(_AIX43) && !defined(_NO_PROTO)
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48 # define _NO_PROTO
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49 #endif
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50
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51 #ifdef HAVE_UNISTD_H
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52 # include <unistd.h>
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53 #endif
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54
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55 #ifdef HAVE_LIBC_H
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56 # include <libc.h> // for NeXT
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57 #endif
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58
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59 #ifdef HAVE_SYS_PARAM_H
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60 # include <sys/param.h> // defines BSD, if it's a BSD system
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61 #endif
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62
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63 /*
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64 * Using getcwd() is preferred, because it checks for a buffer overflow.
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65 * Don't use getcwd() on systems do use system("sh -c pwd"). There is an
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66 * autoconf check for this.
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67 * Use getcwd() anyway if getwd() isn't present.
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68 */
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69 #if defined(HAVE_GETCWD) && !(defined(BAD_GETCWD) && defined(HAVE_GETWD))
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70 # define USE_GETCWD
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71 #endif
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72
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73 // always use unlink() to remove files
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74 #ifndef PROTO
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75 # ifdef VMS
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76 # define vim_mkdir(x, y) mkdir((char *)vms_fixfilename(x), y)
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77 # define mch_rmdir(x) delete((char *)vms_fixfilename(x))
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78 # define mch_remove(x) delete((char *)vms_fixfilename(x))
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79 # else
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80 # define vim_mkdir(x, y) mkdir((char *)(x), y)
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81 # define mch_rmdir(x) rmdir((char *)(x))
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82 # define mch_remove(x) unlink((char *)(x))
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83 # endif
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84 #endif
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85
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86 // The number of arguments to a signal handler is configured here.
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87 // It used to be a long list of almost all systems. Any system that doesn't
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88 // have an argument???
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89 #define SIGHASARG
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90
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91 #ifdef SIGHASARG
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92 # define SIGPROTOARG (int)
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93 # define SIGDEFARG(s) (int s UNUSED)
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94 # define SIGDUMMYARG 0
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95 #else
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96 # define SIGPROTOARG (void)
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97 # define SIGDEFARG(s) ()
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98 # define SIGDUMMYARG
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99 #endif
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100
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101 typedef void (*sighandler_T) SIGPROTOARG;
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102
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103 #ifdef HAVE_DIRENT_H
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104 # include <dirent.h>
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105 # ifndef NAMLEN
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106 # define NAMLEN(dirent) strlen((dirent)->d_name)
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107 # endif
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108 #else
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109 # define dirent direct
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110 # define NAMLEN(dirent) (dirent)->d_namlen
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111 # if HAVE_SYS_NDIR_H
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112 # include <sys/ndir.h>
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113 # endif
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114 # if HAVE_SYS_DIR_H
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115 # include <sys/dir.h>
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116 # endif
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117 # if HAVE_NDIR_H
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118 # include <ndir.h>
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119 # endif
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120 #endif
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121
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122 #include <time.h>
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123 #ifdef HAVE_SYS_TIME_H
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124 # include <sys/time.h>
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125 #endif
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126
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127 #include <signal.h>
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128
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129 #if defined(DIRSIZ) && !defined(MAXNAMLEN)
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130 # define MAXNAMLEN DIRSIZ
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131 #endif
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132
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133 #if defined(UFS_MAXNAMLEN) && !defined(MAXNAMLEN)
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134 # define MAXNAMLEN UFS_MAXNAMLEN // for dynix/ptx
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135 #endif
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136
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137 #if defined(NAME_MAX) && !defined(MAXNAMLEN)
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138 # define MAXNAMLEN NAME_MAX // for Linux before .99p3
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139 #endif
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140
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141 /*
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142 * Note: if MAXNAMLEN has the wrong value, you will get error messages
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143 * for not being able to open the swap file.
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144 */
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145 #if !defined(MAXNAMLEN)
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146 # define MAXNAMLEN 512 // for all other Unix
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147 #endif
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148
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149 #define BASENAMELEN (MAXNAMLEN - 5)
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150
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151 #ifdef HAVE_PWD_H
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152 # include <pwd.h>
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153 #endif
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154
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155 #if (defined(HAVE_SYS_RESOURCE_H) && defined(HAVE_GETRLIMIT)) \
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156 || (defined(HAVE_SYS_SYSINFO_H) && defined(HAVE_SYSINFO)) \
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157 || defined(HAVE_SYSCTL) || defined(HAVE_SYSCONF)
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158 # define HAVE_TOTAL_MEM
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159 #endif
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160
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161
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162 #ifndef PROTO
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163
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164 #ifdef VMS
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165 # include <unixio.h>
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166 # include <unixlib.h>
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167 # include <signal.h>
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168 # include <file.h>
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169 # include <ssdef.h>
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170 # include <descrip.h>
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171 # include <libclidef.h>
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172 # include <lnmdef.h>
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173 # include <psldef.h>
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174 # include <prvdef.h>
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175 # include <dvidef.h>
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176 # include <dcdef.h>
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177 # include <stsdef.h>
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178 # include <iodef.h>
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179 # include <ttdef.h>
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180 # include <tt2def.h>
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181 # include <jpidef.h>
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182 # include <rms.h>
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183 # include <trmdef.h>
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184 # include <string.h>
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185 # include <starlet.h>
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186 # include <socket.h>
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187 # include <lib$routines.h>
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188 # include <libdef.h>
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189 # include <libdtdef.h>
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190
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191 # if defined(FEAT_GUI_MOTIF)
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192 # define XFree XFREE
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193 # define XmRepTypeInstallTearOffModelCon XMREPTYPEINSTALLTEAROFFMODELCON
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194 # endif
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195 #endif // VMS
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196
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197 #ifdef HAVE_FLOCK
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198 # include <sys/file.h>
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199 #endif
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200
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201 #endif // PROTO
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202
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203 #ifdef VMS
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204 typedef struct dsc$descriptor DESC;
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205 #endif
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206
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207 /*
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208 * Unix system-dependent file names
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209 */
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210 #ifndef SYS_VIMRC_FILE
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211 # define SYS_VIMRC_FILE "$VIM/vimrc"
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212 #endif
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213 #ifndef SYS_GVIMRC_FILE
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214 # define SYS_GVIMRC_FILE "$VIM/gvimrc"
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215 #endif
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216 #ifndef DFLT_HELPFILE
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217 # define DFLT_HELPFILE "$VIMRUNTIME/doc/help.txt"
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218 #endif
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219 #ifndef SYS_MENU_FILE
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220 # define SYS_MENU_FILE "$VIMRUNTIME/menu.vim"
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221 #endif
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222
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223 #ifndef USR_EXRC_FILE
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224 # ifdef VMS
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225 # define USR_EXRC_FILE "sys$login:.exrc"
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226 # else
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227 # define USR_EXRC_FILE "$HOME/.exrc"
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228 # endif
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229 #endif
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230
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231 #if !defined(USR_EXRC_FILE2) && defined(VMS)
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232 # define USR_EXRC_FILE2 "sys$login:_exrc"
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233 #endif
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234
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235 #ifndef USR_VIMRC_FILE
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236 # ifdef VMS
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237 # define USR_VIMRC_FILE "sys$login:.vimrc"
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238 # else
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239 # define USR_VIMRC_FILE "$HOME/.vimrc"
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240 # endif
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241 #endif
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242
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243
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244 #if !defined(USR_VIMRC_FILE2)
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245 # ifdef VMS
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246 # define USR_VIMRC_FILE2 "sys$login:vimfiles/vimrc"
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247 # else
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248 # define USR_VIMRC_FILE2 "~/.vim/vimrc"
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249 # endif
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250 #endif
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251
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252 #if !defined(USR_VIMRC_FILE3) && defined(VMS)
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253 # define USR_VIMRC_FILE3 "sys$login:_vimrc"
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254 #endif
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255
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256 #ifndef USR_GVIMRC_FILE
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257 # ifdef VMS
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258 # define USR_GVIMRC_FILE "sys$login:.gvimrc"
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259 # else
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260 # define USR_GVIMRC_FILE "$HOME/.gvimrc"
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261 # endif
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262 #endif
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263
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264 #ifndef USR_GVIMRC_FILE2
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265 # ifdef VMS
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266 # define USR_GVIMRC_FILE2 "sys$login:vimfiles/gvimrc"
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267 # else
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268 # define USR_GVIMRC_FILE2 "~/.vim/gvimrc"
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269 # endif
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270 #endif
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271
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272 #ifdef VMS
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273 # ifndef USR_GVIMRC_FILE3
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274 # define USR_GVIMRC_FILE3 "sys$login:_gvimrc"
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275 # endif
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276 #endif
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277
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278 #ifndef VIM_DEFAULTS_FILE
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279 # define VIM_DEFAULTS_FILE "$VIMRUNTIME/defaults.vim"
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280 #endif
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281
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282 #ifndef EVIM_FILE
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283 # define EVIM_FILE "$VIMRUNTIME/evim.vim"
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284 #endif
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285
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286 #ifdef FEAT_VIMINFO
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287 # ifndef VIMINFO_FILE
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288 # ifdef VMS
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289 # define VIMINFO_FILE "sys$login:.viminfo"
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290 # else
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291 # define VIMINFO_FILE "$HOME/.viminfo"
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292 # endif
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293 # endif
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294 # if !defined(VIMINFO_FILE2) && defined(VMS)
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295 # define VIMINFO_FILE2 "sys$login:_viminfo"
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296 # endif
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297 #endif
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298
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299 #ifndef EXRC_FILE
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300 # define EXRC_FILE ".exrc"
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301 #endif
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302
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303 #ifndef VIMRC_FILE
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304 # define VIMRC_FILE ".vimrc"
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305 #endif
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306
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307 #ifdef FEAT_GUI
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308 # ifndef GVIMRC_FILE
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309 # define GVIMRC_FILE ".gvimrc"
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310 # endif
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311 #endif
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312
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313 #ifndef SYNTAX_FNAME
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314 # define SYNTAX_FNAME "$VIMRUNTIME/syntax/%s.vim"
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315 #endif
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316
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317 #ifndef DFLT_BDIR
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318 # ifdef VMS
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319 # define DFLT_BDIR "./,sys$login:,tmp:"
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320 # else
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321 # define DFLT_BDIR ".,~/tmp,~/" // default for 'backupdir'
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322 # endif
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323 #endif
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324
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325 #ifndef DFLT_DIR
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326 # ifdef VMS
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327 # define DFLT_DIR "./,sys$login:,tmp:"
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328 # else
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329 # define DFLT_DIR ".,~/tmp,/var/tmp,/tmp" // default for 'directory'
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330 # endif
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331 #endif
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332
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333 #ifndef DFLT_VDIR
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334 # ifdef VMS
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335 # define DFLT_VDIR "sys$login:vimfiles/view"
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336 # else
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337 # define DFLT_VDIR "$HOME/.vim/view" // default for 'viewdir'
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338 # endif
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339 #endif
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340
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341 #define DFLT_ERRORFILE "errors.err"
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342
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343 #ifndef DFLT_RUNTIMEPATH
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344
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345 # ifdef VMS
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346 # define DFLT_RUNTIMEPATH "sys$login:vimfiles,$VIM/vimfiles,$VIMRUNTIME,$VIM/vimfiles/after,sys$login:vimfiles/after"
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347 # define CLEAN_RUNTIMEPATH "$VIM/vimfiles,$VIMRUNTIME,$VIM/vimfiles/after"
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348 # else
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349 # ifdef RUNTIME_GLOBAL
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350 # ifdef RUNTIME_GLOBAL_AFTER
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351 # define DFLT_RUNTIMEPATH "~/.vim," RUNTIME_GLOBAL ",$VIMRUNTIME," RUNTIME_GLOBAL_AFTER ",~/.vim/after"
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352 # define CLEAN_RUNTIMEPATH RUNTIME_GLOBAL ",$VIMRUNTIME," RUNTIME_GLOBAL_AFTER
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353 # else
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354 # define DFLT_RUNTIMEPATH "~/.vim," RUNTIME_GLOBAL ",$VIMRUNTIME," RUNTIME_GLOBAL "/after,~/.vim/after"
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355 # define CLEAN_RUNTIMEPATH RUNTIME_GLOBAL ",$VIMRUNTIME," RUNTIME_GLOBAL "/after"
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356 # endif
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357 # else
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358 # define DFLT_RUNTIMEPATH "~/.vim,$VIM/vimfiles,$VIMRUNTIME,$VIM/vimfiles/after,~/.vim/after"
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359 # define CLEAN_RUNTIMEPATH "$VIM/vimfiles,$VIMRUNTIME,$VIM/vimfiles/after"
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360 # endif
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361 # endif
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362
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363 #endif
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364
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365 #ifdef VMS
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366 # ifndef VAX
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367 # define VMS_TEMPNAM // to fix default .LIS extension
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368 # endif
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369 # define TEMPNAME "TMP:v?XXXXXX.txt"
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370 # define TEMPNAMELEN 28
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371 #else
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372 // Try several directories to put the temp files.
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373 # define TEMPDIRNAMES "$TMPDIR", "/tmp", ".", "$HOME"
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374 # define TEMPNAMELEN 256
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375 #endif
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376
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377 // Special wildcards that need to be handled by the shell
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378 #define SPECIAL_WILDCHAR "`'{"
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379
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380 /*
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381 * Unix has plenty of memory, use large buffers
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382 */
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383 #define CMDBUFFSIZE 1024 // size of the command processing buffer
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384
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385 // Use the system path length if it makes sense.
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386 #if defined(PATH_MAX) && (PATH_MAX > 1000)
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387 # define MAXPATHL PATH_MAX
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388 #else
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389 # define MAXPATHL 1024
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390 #endif
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391
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392 #define CHECK_INODE // used when checking if a swap file already
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393 // exists for a file
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394 #ifdef VMS // Use less memory because of older systems
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395 # ifndef DFLT_MAXMEM
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396 # define DFLT_MAXMEM (2*1024)
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397 # endif
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398 # ifndef DFLT_MAXMEMTOT
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399 # define DFLT_MAXMEMTOT (5*1024)
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400 # endif
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401 #else
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402 # ifndef DFLT_MAXMEM
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403 # define DFLT_MAXMEM (5*1024) // use up to 5 Mbyte for a buffer
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404 # endif
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405 # ifndef DFLT_MAXMEMTOT
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406 # define DFLT_MAXMEMTOT (10*1024) // use up to 10 Mbyte for Vim
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407 # endif
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408 #endif
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409
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410 // memmove() is not present on all systems, use memmove, bcopy or memcpy.
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411 // Some systems have (void *) arguments, some (char *). If we use (char *) it
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412 // works for all
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413 #if defined(USEMEMMOVE) || (!defined(USEBCOPY) && !defined(USEMEMCPY))
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414 # define mch_memmove(to, from, len) memmove((char *)(to), (char *)(from), len)
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415 #else
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416 # ifdef USEBCOPY
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417 # define mch_memmove(to, from, len) bcopy((char *)(from), (char *)(to), len)
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418 # else
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419 // ifdef USEMEMCPY
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420 # define mch_memmove(to, from, len) memcpy((char *)(to), (char *)(from), len)
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421 # endif
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422 #endif
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423
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424 #ifndef PROTO
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425 # ifdef HAVE_RENAME
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426 # define mch_rename(src, dst) rename(src, dst)
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427 # else
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428 int mch_rename(const char *src, const char *dest);
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429 # endif
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430 # ifndef VMS
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431 # ifdef __MVS__
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432 // on OS390 Unix getenv() doesn't return a pointer to persistent
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433 // storage -> use __getenv()
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434 # define mch_getenv(x) (char_u *)__getenv((char *)(x))
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435 # else
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436 # define mch_getenv(x) (char_u *)getenv((char *)(x))
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437 # endif
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438 # define mch_setenv(name, val, x) setenv(name, val, x)
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439 # endif
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440 #endif
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441
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442 // Note: Some systems need both string.h and strings.h (Savage). However,
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443 // some systems can't handle both, only use string.h in that case.
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444 #ifdef HAVE_STRING_H
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445 # include <string.h>
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446 #endif
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447 #if defined(HAVE_STRINGS_H) && !defined(NO_STRINGS_WITH_STRING_H)
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448 # include <strings.h>
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449 #endif
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450
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451 #if defined(HAVE_SETJMP_H)
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452 # include <setjmp.h>
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453 # ifdef HAVE_SIGSETJMP
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454 # define JMP_BUF sigjmp_buf
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455 # define SETJMP(x) sigsetjmp((x), 1)
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456 # define LONGJMP siglongjmp
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457 # else
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458 # define JMP_BUF jmp_buf
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459 # define SETJMP(x) setjmp(x)
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460 # define LONGJMP longjmp
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461 # endif
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462 #endif
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463
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464 #ifndef HAVE_DUP
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465 # define HAVE_DUP // have dup()
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466 #endif
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467 #define HAVE_ST_MODE // have stat.st_mode
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468
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469 // We have three kinds of ACL support.
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470 #define HAVE_ACL (HAVE_POSIX_ACL || HAVE_SOLARIS_ACL || HAVE_AIX_ACL)