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1b94449f RS |
1 | /* System description file for MS-DOS |
2 | ||
3 | Copyright (C) 1993 Free Software Foundation, Inc. | |
4 | ||
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
19 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
20 | ||
21 | /* Note: lots of stuff here was taken from s-msdos.h in demacs. */ | |
22 | ||
23 | ||
24 | /* | |
25 | * Define symbols to identify the version of Unix this is. | |
26 | * Define all the symbols that apply correctly. | |
27 | */ | |
28 | ||
29 | /* #define UNIPLUS */ | |
30 | /* #define USG5 */ | |
31 | /* #define USG */ | |
32 | /* #define HPUX */ | |
33 | /* #define UMAX */ | |
34 | /* #define BSD4_1 */ | |
35 | /* #define BSD4_2 */ | |
36 | /* #define BSD4_3 */ | |
37 | /* #define BSD */ | |
38 | /* #define VMS */ | |
39 | #ifndef MSDOS | |
40 | #define MSDOS | |
41 | #endif | |
fcc182b3 RS |
42 | |
43 | #define DOS_NT /* MSDOS or WINDOWSNT */ | |
1b94449f RS |
44 | #undef BSD |
45 | #undef VMS | |
46 | ||
47 | /* SYSTEM_TYPE should indicate the kind of system you are using. | |
48 | It sets the Lisp variable system-type. */ | |
49 | ||
50 | #define SYSTEM_TYPE "ms-dos" | |
51 | ||
52 | #define SYMS_SYSTEM syms_of_dosfns() | |
53 | ||
54 | /* NOMULTIPLEJOBS should be defined if your system's shell | |
55 | does not have "job control" (the ability to stop a program, | |
56 | run some other program, then continue the first one). */ | |
57 | ||
58 | #define NOMULTIPLEJOBS | |
59 | ||
60 | /* Emacs can read input using SIGIO and buffering characters itself, | |
61 | or using CBREAK mode and making C-g cause SIGINT. | |
62 | The choice is controlled by the variable interrupt_input. | |
63 | Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO) | |
64 | ||
65 | SIGIO can be used only on systems that implement it (4.2 and 4.3). | |
66 | CBREAK mode has two disadvatages | |
67 | 1) At least in 4.2, it is impossible to handle the Meta key properly. | |
68 | I hear that in system V this problem does not exist. | |
69 | 2) Control-G causes output to be discarded. | |
70 | I do not know whether this can be fixed in system V. | |
71 | ||
72 | Another method of doing input is planned but not implemented. | |
73 | It would have Emacs fork off a separate process | |
74 | to read the input and send it to the true Emacs process | |
75 | through a pipe. | |
76 | */ | |
77 | ||
78 | /* #define INTERRUPT_INPUT */ | |
79 | ||
80 | /* Letter to use in finding device name of first pty, | |
81 | if system supports pty's. 'a' means it is /dev/ptya0 */ | |
82 | ||
83 | /* #define FIRST_PTY_LETTER 'a' */ | |
84 | ||
1b94449f RS |
85 | /* |
86 | * Define HAVE_PTYS if the system supports pty devices. | |
87 | */ | |
88 | ||
89 | /* #define HAVE_PTYS */ | |
90 | ||
91 | /* | |
92 | * Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate | |
93 | * The 4.2 opendir, etc., library functions. | |
94 | */ | |
95 | ||
96 | /* #define NONSYSTEM_DIR_LIBRARY */ | |
97 | ||
98 | #define SYSV_SYSTEM_DIR | |
99 | ||
100 | /* Define this symbol if your system has the functions bcopy, etc. */ | |
101 | ||
102 | #define BSTRING | |
103 | ||
17b9d003 RS |
104 | /* Define this is the compiler understands `volatile'. */ |
105 | #define HAVE_VOLATILE | |
106 | ||
107 | ||
1b94449f RS |
108 | /* subprocesses should be defined if you want to |
109 | have code for asynchronous subprocesses | |
110 | (as used in M-x compile and M-x shell). | |
111 | This is generally OS dependent, and not supported | |
112 | under most USG systems. */ | |
113 | ||
114 | #undef subprocesses | |
115 | ||
116 | /* If your system uses COFF (Common Object File Format) then define the | |
117 | preprocessor symbol "COFF". */ | |
118 | ||
119 | #define COFF | |
120 | ||
121 | /* define MAIL_USE_FLOCK if the mailer uses flock | |
122 | to interlock access to /usr/spool/mail/$USER. | |
123 | The alternative is that a lock file named | |
124 | /usr/spool/mail/$USER.lock. */ | |
125 | ||
126 | /* #define MAIL_USE_FLOCK */ | |
127 | ||
128 | /* Define CLASH_DETECTION if you want lock files to be written | |
129 | so that Emacs can tell instantly when you try to modify | |
130 | a file that someone else has modified in his Emacs. */ | |
131 | ||
132 | /* #define CLASH_DETECTION */ | |
133 | ||
134 | /* Here, on a separate page, add any special hacks needed | |
135 | to make Emacs work on this system. For example, | |
136 | you might define certain system call names that don't | |
137 | exist on your system, or that do different things on | |
138 | your system and must be used only through an encapsulation | |
139 | (Which you should place, by convention, in sysdep.c). */ | |
140 | \f | |
1b94449f RS |
141 | /* we use djgcc's malloc */ |
142 | /* #define SYSTEM_MALLOC */ | |
143 | /* setjmp and longjmp can safely replace _setjmp and _longjmp, | |
144 | but they will run slower. */ | |
145 | ||
146 | #define _setjmp setjmp | |
147 | #define _longjmp longjmp | |
148 | ||
149 | #define NO_MODE_T | |
150 | ||
1b94449f RS |
151 | /* New chdir () routine. */ |
152 | #ifdef chdir | |
153 | #undef chdir | |
154 | #endif | |
155 | #define chdir sys_chdir | |
156 | ||
157 | #define LIBS_SYSTEM -lpc | |
158 | ||
159 | /* This somehow needs to be defined even though we use COFF. */ | |
160 | #define TEXT_START -1 | |
161 | ||
162 | #define ORDINARY_LINK | |
163 | ||
87485d6f | 164 | /* command.com does not understand `...` so we define this. */ |
1b94449f RS |
165 | #define LIB_GCC -Lgcc |
166 | #define DONT_NEED_ENVIRON | |
167 | #define SEPCHAR ';' | |
168 | ||
169 | #define NULL_DEVICE "nul" | |
170 | #define EXEC_SUFFIXES ".exe:.com:.bat:" | |
171 | ||
172 | #define O_RDONLY 0x0001 | |
173 | #define O_WRONLY 0x0002 | |
174 | #define O_RDWR 0x0004 | |
175 | #define O_CREAT 0x0100 | |
176 | #define O_TRUNC 0x0200 | |
177 | #define O_EXCL 0x0400 | |
178 | #define O_APPEND 0x0800 | |
179 | #define O_TEXT 0x4000 | |
180 | #define O_BINARY 0x8000 | |
181 | ||
182 | #define HAVE_INVERSE_HYPERBOLIC | |
183 | #define FLOAT_CHECK_DOMAIN | |
ca31c483 | 184 | #define NO_MATHERR |
1b94449f RS |
185 | |
186 | /* When $TERM is "internal" then this is substituted: */ | |
187 | #define INTERNAL_TERMINAL "pc|bios|IBM PC with colour display:\ | |
188 | :co#80:li#25:km:\ | |
189 | :cm=\E@%.%.:\ | |
190 | :do=^J:le=^H:up=\EU:ri=\ER:\ | |
191 | :ti=\EA\027:te=\EA\007\EE:\ | |
192 | :so=\EA\077:se=\EA\027:\ | |
193 | :ms:mb=\EX\200:md=\EX\010:mk=\EA\161:me=\EA\027:\ | |
194 | :cl=\EC:ce=\EE:\ | |
a7d6cde6 | 195 | :vb=\EB\140:bl=\007:" |
1b94449f RS |
196 | #define fflush internal_flush |
197 | ||
198 | /* Define this to a function (Fdowncase, Fupcase) if your file system | |
199 | likes that */ | |
200 | #define FILE_SYSTEM_CASE Fdowncase | |
201 | ||
29675256 RS |
202 | /* Define this to be the separator between devices and paths */ |
203 | #define DEVICE_SEP ':' | |
204 | ||
205 | /* We'll support either convention on MSDOG. */ | |
206 | #define IS_DIRECTORY_SEP(_c_) ((_c_) == '/' || (_c_) == '\\') | |
207 | #define IS_ANY_SEP(_c_) (IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP (_c_)) | |
208 | ||
6b8ac9d2 PE |
209 | /* Call init_gettimeofday when TZ changes. */ |
210 | #define LOCALTIME_CACHE | |
211 | #define tzset init_gettimeofday | |
212 | ||
a7d40caa KH |
213 | /* bcopy under djgpp is quite safe */ |
214 | #define GAP_USE_BCOPY | |
215 | #define BCOPY_UPWARD_SAFE 1 | |
216 | #define BCOPY_DOWNWARD_SAFE 1 | |
eb246adb | 217 | |
b77c5660 KH |
218 | /* Mode line description of a buffer's type. */ |
219 | #define MODE_LINE_BINARY_TEXT(buf) (NILP(buf->buffer_file_type) ? "T" : "B") | |
220 | ||
eb246adb RS |
221 | /* We have (the code to control) a mouse. */ |
222 | #define HAVE_MOUSE | |
87485d6f MW |
223 | |
224 | /* We have support for faces. */ | |
225 | #define HAVE_FACES | |
226 | ||
227 | /* Define one of these for easier conditionals. */ | |
228 | #ifdef HAVE_X_WINDOWS | |
229 | /* We need a little extra space, see ../../lisp/loadup.el */ | |
230 | #define SYSTEM_PURESIZE_EXTRA 15000 | |
231 | #define HAVE_X11R5 | |
232 | #define LIBX11_SYSTEM -lxext -lsys | |
233 | #else | |
234 | /* We need a little extra space, see ../../lisp/loadup.el */ | |
d0129427 | 235 | #define SYSTEM_PURESIZE_EXTRA 68000 |
87485d6f | 236 | #endif |