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1 /* System description file for MS-DOS
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2
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3 Copyright (C) 1993 Free Software Foundation, Inc.
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4
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5 This file is part of GNU Emacs.
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6
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7 GNU Emacs is free software; you can redistribute it and/or modify
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8 it under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 2, or (at your option)
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10 any later version.
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11
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12 GNU Emacs is distributed in the hope that it will be useful,
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Synched up with: FSF 19.31. */
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23
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24 /* Note: lots of stuff here was taken from s-msdos.h in demacs. */
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25
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26
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27 /*
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28 * Define symbols to identify the version of Unix this is.
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29 * Define all the symbols that apply correctly.
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30 */
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31
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32 /* #define UNIPLUS */
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33 /* #define USG5 */
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34 /* #define USG */
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35 /* #define HPUX */
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36 /* #define UMAX */
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37 /* #define BSD4_1 */
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38 /* #define BSD4_2 */
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39 /* #define BSD4_3 */
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40 /* #define BSD */
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41 #ifndef MSDOS
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42 #define MSDOS
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43 #endif
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44
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45 #ifdef __GO32__
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46 #ifndef __DJGPP__
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47 #define __DJGPP__ 1 /* V2 defines __DJGPP__ == 2 */
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48 #endif
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49 #else
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50 You lose; /* Emacs for DOS must be compiled with DJGPP */
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51 #endif
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52
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53 #define DOS_NT /* MSDOS or WINDOWSNT */
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54 #undef BSD
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55
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56 /* SYSTEM_TYPE should indicate the kind of system you are using.
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57 It sets the Lisp variable system-type. */
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58
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59 #define SYSTEM_TYPE "ms-dos"
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60
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61 #define SYMS_SYSTEM syms_of_dosfns();syms_of_msdos()
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62
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63 /* Letter to use in finding device name of first pty,
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64 if system supports pty's. 'a' means it is /dev/ptya0 */
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65
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66 /* #define FIRST_PTY_LETTER 'a' */
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67
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68 /*
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69 * Define HAVE_PTYS if the system supports pty devices.
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70 */
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71
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72 /* #define HAVE_PTYS */
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73
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74 /* MSDOS has dirent.h but doesn't behave otherwise like the SYSV
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75 directory functions. We have special tests for this in
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76 sysdir.h. */
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77
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78 #undef SYSV_SYSTEM_DIR
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79
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80 /* Define this is the compiler understands `volatile'. */
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81 #define HAVE_VOLATILE
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82
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83 #define NO_SUBPROCESSES
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84
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85 /* If your system uses COFF (Common Object File Format) then define the
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86 preprocessor symbol "COFF". */
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87
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88 #define COFF
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89
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90 /* define MAIL_USE_FLOCK if the mailer uses flock
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91 to interlock access to /usr/spool/mail/$USER.
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92 The alternative is that a lock file named
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93 /usr/spool/mail/$USER.lock. */
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94
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95 /* #define MAIL_USE_FLOCK */
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96
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97 /* Here, on a separate page, add any special hacks needed
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98 to make Emacs work on this system. For example,
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99 you might define certain system call names that don't
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100 exist on your system, or that do different things on
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101 your system and must be used only through an encapsulation
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102 (Which you should place, by convention, in sysdep.c). */
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103
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104 /* Avoid incompatibilities between gmalloc.c and system header files
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105 in how to declare valloc. */
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106 #define GMALLOC_INHIBIT_VALLOC
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107
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108 /* setjmp and longjmp can safely replace _setjmp and _longjmp,
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109 but they will run slower. */
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110
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111 #define _setjmp setjmp
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112 #define _longjmp longjmp
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113
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114 #if __DJGPP__ < 2
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115
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116 #define NO_MODE_T
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117
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118 /* New chdir () routine.
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119 DJGPP v2.0 and later doesn't need it because its chdir() does
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120 set the drive itself. */
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121 #ifdef chdir
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122 #undef chdir
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123 #endif
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124 #define chdir sys_chdir
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125
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163
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126 #define LIBS_SYSTEM "-lpc" /* isn't required in DJGPP v2.0, either */
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0
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127
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128 #endif /* __DJGPP__ < 2 */
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129
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130 #if __DJGPP__ > 1
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131
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132 #define DATA_START (&etext + 1)
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133 #define TEXT_START &start
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134 #define TEXT_END &etext
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135
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136 #define _NAIVE_DOS_REGS
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137
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138 #else /* not __DJGPP__ > 1 */
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139
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140 /* This somehow needs to be defined even though we use COFF. */
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141 #define TEXT_START -1
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142
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143 #endif /* not __DJGPP__ > 1 */
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144
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145 #define ORDINARY_LINK
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146
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147 /* command.com does not understand `...` so we define this. */
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163
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148 #define LIB_GCC "-Lgcc"
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0
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149 #define DONT_NEED_ENVIRON
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150 #define SEPCHAR ';'
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151
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152 #define NULL_DEVICE "nul"
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153 #define EXEC_SUFFIXES ".exe:.com:.bat:"
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154
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155 #if __DJGPP__ < 2
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156 #define O_RDONLY 0x0001
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157 #define O_WRONLY 0x0002
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158 #define O_RDWR 0x0004
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159 #define O_CREAT 0x0100
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160 #define O_TRUNC 0x0200
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161 #define O_EXCL 0x0400
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162 #define O_APPEND 0x0800
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163 #define O_TEXT 0x4000
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164 #define O_BINARY 0x8000
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165 #define NO_MATHERR
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166 #endif
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167
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168 #define HAVE_INVERSE_HYPERBOLIC
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169 #define FLOAT_CHECK_DOMAIN
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170
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171 /* When $TERM is "internal" then this is substituted: */
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172 #define INTERNAL_TERMINAL "pc|bios|IBM PC with colour display:\
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173 :co#80:li#25:km:ms:cm=<CM>:cl=<CL>:ce=<CE>:"
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174
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175 /* Define this to a function (Fdowncase, Fupcase) if your file system
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176 likes that */
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177 #define FILE_SYSTEM_CASE Fmsdos_downcase_filename
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178
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179 /* Define this to be the separator between devices and paths */
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180 #define DEVICE_SEP ':'
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181
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182 /* We'll support either convention on MSDOG. */
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183 #define IS_DIRECTORY_SEP(_c_) ((_c_) == '/' || (_c_) == '\\')
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184 #define IS_ANY_SEP(_c_) (IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP (_c_))
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185
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186 /* Call init_gettimeofday when TZ changes. */
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187 #if __DJGPP__ < 2
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188 #define LOCALTIME_CACHE
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189 #define tzset init_gettimeofday
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190 #endif
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191
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192 /* bcopy under djgpp is quite safe */
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193 #define GAP_USE_BCOPY
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194 #define BCOPY_UPWARD_SAFE 1
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195 #define BCOPY_DOWNWARD_SAFE 1
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196
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197 /* Mode line description of a buffer's type. */
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198 #define MODE_LINE_BINARY_TEXT(buf) (NILP(buf->buffer_file_type) ? "T" : "B")
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199
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200 /* Do we have POSIX signals? */
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201 #if __DJGPP__ > 1
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202 #define POSIX_SIGNALS
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203 #endif
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204
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205 /* We have (the code to control) a mouse. */
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206 #define HAVE_MOUSE
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207
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208 /* We canuse mouse menus. */
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209 #define HAVE_MENUS
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210
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211 /* We have support for faces. */
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212 #define HAVE_FACES
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213
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214 /* Define one of these for easier conditionals. */
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215 #ifdef HAVE_X_WINDOWS
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216 /* We need a little extra space, see ../../lisp/loadup.el */
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217 #define SYSTEM_PURESIZE_EXTRA 15000
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218 #define HAVE_X11R5
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163
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219 #define LIBX11_SYSTEM "-lxext -lsys"
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220 #else
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221 /* We need a little extra space, see ../../lisp/loadup.el */
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222 #define SYSTEM_PURESIZE_EXTRA 85000
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223 #endif
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