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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 | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
1b94449f RS |
21 | |
22 | /* Note: lots of stuff here was taken from s-msdos.h in demacs. */ | |
23 | ||
24 | ||
25 | /* | |
26 | * Define symbols to identify the version of Unix this is. | |
27 | * Define all the symbols that apply correctly. | |
28 | */ | |
29 | ||
30 | /* #define UNIPLUS */ | |
31 | /* #define USG5 */ | |
32 | /* #define USG */ | |
33 | /* #define HPUX */ | |
34 | /* #define UMAX */ | |
35 | /* #define BSD4_1 */ | |
36 | /* #define BSD4_2 */ | |
37 | /* #define BSD4_3 */ | |
38 | /* #define BSD */ | |
39 | /* #define VMS */ | |
40 | #ifndef MSDOS | |
41 | #define MSDOS | |
42 | #endif | |
fcc182b3 | 43 | |
920b97ab KS |
44 | #ifdef __GO32__ |
45 | #ifndef __DJGPP__ | |
46 | #define __DJGPP__ 1 /* V2 defines __DJGPP__ == 2 */ | |
47 | #else | |
48 | You lose; /* Emacs for DOS must be compiled with DJGPP V1 */ | |
49 | #endif | |
50 | #else | |
51 | You lose; /* Emacs for DOS must be compiled with DJGPP */ | |
52 | #endif | |
53 | ||
fcc182b3 | 54 | #define DOS_NT /* MSDOS or WINDOWSNT */ |
1b94449f RS |
55 | #undef BSD |
56 | #undef VMS | |
57 | ||
58 | /* SYSTEM_TYPE should indicate the kind of system you are using. | |
59 | It sets the Lisp variable system-type. */ | |
60 | ||
61 | #define SYSTEM_TYPE "ms-dos" | |
62 | ||
e0e94b6c | 63 | #define SYMS_SYSTEM syms_of_dosfns();syms_of_msdos() |
1b94449f RS |
64 | |
65 | /* NOMULTIPLEJOBS should be defined if your system's shell | |
66 | does not have "job control" (the ability to stop a program, | |
67 | run some other program, then continue the first one). */ | |
68 | ||
69 | #define NOMULTIPLEJOBS | |
70 | ||
71 | /* Emacs can read input using SIGIO and buffering characters itself, | |
72 | or using CBREAK mode and making C-g cause SIGINT. | |
73 | The choice is controlled by the variable interrupt_input. | |
74 | Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO) | |
75 | ||
76 | SIGIO can be used only on systems that implement it (4.2 and 4.3). | |
8e6208c5 | 77 | CBREAK mode has two disadvantages |
1b94449f RS |
78 | 1) At least in 4.2, it is impossible to handle the Meta key properly. |
79 | I hear that in system V this problem does not exist. | |
80 | 2) Control-G causes output to be discarded. | |
81 | I do not know whether this can be fixed in system V. | |
82 | ||
83 | Another method of doing input is planned but not implemented. | |
84 | It would have Emacs fork off a separate process | |
85 | to read the input and send it to the true Emacs process | |
86 | through a pipe. | |
87 | */ | |
88 | ||
89 | /* #define INTERRUPT_INPUT */ | |
90 | ||
91 | /* Letter to use in finding device name of first pty, | |
92 | if system supports pty's. 'a' means it is /dev/ptya0 */ | |
93 | ||
94 | /* #define FIRST_PTY_LETTER 'a' */ | |
95 | ||
1b94449f RS |
96 | /* |
97 | * Define HAVE_PTYS if the system supports pty devices. | |
98 | */ | |
99 | ||
100 | /* #define HAVE_PTYS */ | |
101 | ||
102 | /* | |
103 | * Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate | |
104 | * The 4.2 opendir, etc., library functions. | |
105 | */ | |
106 | ||
107 | /* #define NONSYSTEM_DIR_LIBRARY */ | |
108 | ||
109 | #define SYSV_SYSTEM_DIR | |
110 | ||
111 | /* Define this symbol if your system has the functions bcopy, etc. */ | |
112 | ||
113 | #define BSTRING | |
114 | ||
17b9d003 RS |
115 | /* Define this is the compiler understands `volatile'. */ |
116 | #define HAVE_VOLATILE | |
117 | ||
118 | ||
1b94449f RS |
119 | /* subprocesses should be defined if you want to |
120 | have code for asynchronous subprocesses | |
121 | (as used in M-x compile and M-x shell). | |
122 | This is generally OS dependent, and not supported | |
123 | under most USG systems. */ | |
124 | ||
125 | #undef subprocesses | |
126 | ||
127 | /* If your system uses COFF (Common Object File Format) then define the | |
128 | preprocessor symbol "COFF". */ | |
129 | ||
130 | #define COFF | |
131 | ||
132 | /* define MAIL_USE_FLOCK if the mailer uses flock | |
133 | to interlock access to /usr/spool/mail/$USER. | |
134 | The alternative is that a lock file named | |
135 | /usr/spool/mail/$USER.lock. */ | |
136 | ||
137 | /* #define MAIL_USE_FLOCK */ | |
138 | ||
139 | /* Define CLASH_DETECTION if you want lock files to be written | |
140 | so that Emacs can tell instantly when you try to modify | |
141 | a file that someone else has modified in his Emacs. */ | |
142 | ||
143 | /* #define CLASH_DETECTION */ | |
144 | ||
145 | /* Here, on a separate page, add any special hacks needed | |
146 | to make Emacs work on this system. For example, | |
147 | you might define certain system call names that don't | |
148 | exist on your system, or that do different things on | |
149 | your system and must be used only through an encapsulation | |
150 | (Which you should place, by convention, in sysdep.c). */ | |
151 | \f | |
1b94449f RS |
152 | /* we use djgcc's malloc */ |
153 | /* #define SYSTEM_MALLOC */ | |
154 | /* setjmp and longjmp can safely replace _setjmp and _longjmp, | |
155 | but they will run slower. */ | |
156 | ||
157 | #define _setjmp setjmp | |
158 | #define _longjmp longjmp | |
159 | ||
160 | #define NO_MODE_T | |
161 | ||
1b94449f RS |
162 | /* New chdir () routine. */ |
163 | #ifdef chdir | |
164 | #undef chdir | |
165 | #endif | |
166 | #define chdir sys_chdir | |
167 | ||
168 | #define LIBS_SYSTEM -lpc | |
169 | ||
170 | /* This somehow needs to be defined even though we use COFF. */ | |
171 | #define TEXT_START -1 | |
172 | ||
173 | #define ORDINARY_LINK | |
174 | ||
87485d6f | 175 | /* command.com does not understand `...` so we define this. */ |
1b94449f RS |
176 | #define LIB_GCC -Lgcc |
177 | #define DONT_NEED_ENVIRON | |
178 | #define SEPCHAR ';' | |
179 | ||
180 | #define NULL_DEVICE "nul" | |
181 | #define EXEC_SUFFIXES ".exe:.com:.bat:" | |
182 | ||
183 | #define O_RDONLY 0x0001 | |
184 | #define O_WRONLY 0x0002 | |
185 | #define O_RDWR 0x0004 | |
186 | #define O_CREAT 0x0100 | |
187 | #define O_TRUNC 0x0200 | |
188 | #define O_EXCL 0x0400 | |
189 | #define O_APPEND 0x0800 | |
190 | #define O_TEXT 0x4000 | |
191 | #define O_BINARY 0x8000 | |
192 | ||
193 | #define HAVE_INVERSE_HYPERBOLIC | |
194 | #define FLOAT_CHECK_DOMAIN | |
ca31c483 | 195 | #define NO_MATHERR |
1b94449f RS |
196 | |
197 | /* When $TERM is "internal" then this is substituted: */ | |
198 | #define INTERNAL_TERMINAL "pc|bios|IBM PC with colour display:\ | |
920b97ab | 199 | :co#80:li#25:km:ms:cm=<CM>:cl=<CL>:ce=<CE>:" |
1b94449f RS |
200 | |
201 | /* Define this to a function (Fdowncase, Fupcase) if your file system | |
202 | likes that */ | |
203 | #define FILE_SYSTEM_CASE Fdowncase | |
204 | ||
29675256 RS |
205 | /* Define this to be the separator between devices and paths */ |
206 | #define DEVICE_SEP ':' | |
207 | ||
208 | /* We'll support either convention on MSDOG. */ | |
209 | #define IS_DIRECTORY_SEP(_c_) ((_c_) == '/' || (_c_) == '\\') | |
210 | #define IS_ANY_SEP(_c_) (IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP (_c_)) | |
211 | ||
6b8ac9d2 PE |
212 | /* Call init_gettimeofday when TZ changes. */ |
213 | #define LOCALTIME_CACHE | |
214 | #define tzset init_gettimeofday | |
215 | ||
a7d40caa KH |
216 | /* bcopy under djgpp is quite safe */ |
217 | #define GAP_USE_BCOPY | |
218 | #define BCOPY_UPWARD_SAFE 1 | |
219 | #define BCOPY_DOWNWARD_SAFE 1 | |
eb246adb | 220 | |
b77c5660 KH |
221 | /* Mode line description of a buffer's type. */ |
222 | #define MODE_LINE_BINARY_TEXT(buf) (NILP(buf->buffer_file_type) ? "T" : "B") | |
223 | ||
eb246adb RS |
224 | /* We have (the code to control) a mouse. */ |
225 | #define HAVE_MOUSE | |
87485d6f | 226 | |
61c88d95 RS |
227 | /* We canuse mouse menus. */ |
228 | #define HAVE_MENUS | |
229 | ||
87485d6f MW |
230 | /* We have support for faces. */ |
231 | #define HAVE_FACES | |
232 | ||
233 | /* Define one of these for easier conditionals. */ | |
234 | #ifdef HAVE_X_WINDOWS | |
235 | /* We need a little extra space, see ../../lisp/loadup.el */ | |
236 | #define SYSTEM_PURESIZE_EXTRA 15000 | |
237 | #define HAVE_X11R5 | |
238 | #define LIBX11_SYSTEM -lxext -lsys | |
239 | #else | |
240 | /* We need a little extra space, see ../../lisp/loadup.el */ | |
c52d9849 | 241 | #define SYSTEM_PURESIZE_EXTRA 85000 |
87485d6f | 242 | #endif |