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1b94449f RS |
1 | /* System description file for MS-DOS |
2 | ||
4b158629 | 3 | Copyright (C) 1993, 1996, 1997, 2001, 2002, 2003, 2004, 2005, 2006, |
114f9c96 | 4 | 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
1b94449f RS |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
4b158629 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
1b94449f | 9 | it under the terms of the GNU General Public License as published by |
4b158629 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
1b94449f RS |
12 | |
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
4b158629 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
1b94449f RS |
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 | ||
1b94449f RS |
29 | #ifndef MSDOS |
30 | #define MSDOS | |
31 | #endif | |
fcc182b3 | 32 | |
920b97ab | 33 | #ifndef __DJGPP__ |
920b97ab KS |
34 | You lose; /* Emacs for DOS must be compiled with DJGPP */ |
35 | #endif | |
36 | ||
fcc182b3 | 37 | #define DOS_NT /* MSDOS or WINDOWSNT */ |
6df54671 | 38 | #undef BSD_SYSTEM |
1b94449f RS |
39 | |
40 | /* SYSTEM_TYPE should indicate the kind of system you are using. | |
41 | It sets the Lisp variable system-type. */ | |
42 | ||
43 | #define SYSTEM_TYPE "ms-dos" | |
44 | ||
76e5a001 | 45 | #define SYMS_SYSTEM syms_of_dosfns();syms_of_msdos();syms_of_win16select() |
1b94449f RS |
46 | |
47 | /* NOMULTIPLEJOBS should be defined if your system's shell | |
48 | does not have "job control" (the ability to stop a program, | |
49 | run some other program, then continue the first one). */ | |
50 | ||
51 | #define NOMULTIPLEJOBS | |
52 | ||
1b94449f RS |
53 | #define SYSV_SYSTEM_DIR |
54 | ||
55 | /* Define this symbol if your system has the functions bcopy, etc. */ | |
56 | ||
57 | #define BSTRING | |
58 | ||
17b9d003 RS |
59 | /* Define this is the compiler understands `volatile'. */ |
60 | #define HAVE_VOLATILE | |
61 | ||
62 | ||
1b94449f RS |
63 | /* subprocesses should be defined if you want to |
64 | have code for asynchronous subprocesses | |
65 | (as used in M-x compile and M-x shell). | |
77ccee09 | 66 | This is the only system that needs this. */ |
1b94449f RS |
67 | |
68 | #undef subprocesses | |
69 | ||
70 | /* If your system uses COFF (Common Object File Format) then define the | |
71 | preprocessor symbol "COFF". */ | |
72 | ||
73 | #define COFF | |
74 | ||
1b94449f RS |
75 | /* Here, on a separate page, add any special hacks needed |
76 | to make Emacs work on this system. For example, | |
77 | you might define certain system call names that don't | |
78 | exist on your system, or that do different things on | |
79 | your system and must be used only through an encapsulation | |
80 | (Which you should place, by convention, in sysdep.c). */ | |
81 | \f | |
7630a042 RS |
82 | /* Avoid incompatibilities between gmalloc.c and system header files |
83 | in how to declare valloc. */ | |
84 | #define GMALLOC_INHIBIT_VALLOC | |
85 | ||
7b4ded6d EZ |
86 | /* This overrides the default value on editfns.c, since DJGPP |
87 | does not have pw->pw_gecos. */ | |
88 | #define USER_FULL_NAME (getenv ("NAME")) | |
89 | ||
1b94449f RS |
90 | /* setjmp and longjmp can safely replace _setjmp and _longjmp, |
91 | but they will run slower. */ | |
92 | ||
93 | #define _setjmp setjmp | |
94 | #define _longjmp longjmp | |
95 | ||
7a05f3c7 RS |
96 | #define DATA_START (&etext + 1) |
97 | #define TEXT_START &start | |
7a05f3c7 RS |
98 | |
99 | #define _NAIVE_DOS_REGS | |
100 | ||
1b94449f RS |
101 | #define ORDINARY_LINK |
102 | ||
87485d6f | 103 | /* command.com does not understand `...` so we define this. */ |
1b94449f | 104 | #define LIB_GCC -Lgcc |
1b94449f RS |
105 | #define SEPCHAR ';' |
106 | ||
107 | #define NULL_DEVICE "nul" | |
1b94449f | 108 | |
1b94449f RS |
109 | #define HAVE_INVERSE_HYPERBOLIC |
110 | #define FLOAT_CHECK_DOMAIN | |
111 | ||
112 | /* When $TERM is "internal" then this is substituted: */ | |
6772c8e1 | 113 | #define INTERNAL_TERMINAL "pc|bios|IBM PC with color display:\ |
89774ec3 | 114 | :co#80:li#25:Co#16:pa#256:km:ms:cm=<CM>:cl=<CL>:ce=<CE>:\ |
38fd211b | 115 | :se=</SO>:so=<SO>:us=<UL>:ue=</UL>:md=<BD>:mh=<DIM>:mb=<BL>:mr=<RV>:me=<NV>:\ |
89774ec3 | 116 | :AB=<BG %d>:AF=<FG %d>:op=<DefC>:" |
1b94449f RS |
117 | |
118 | /* Define this to a function (Fdowncase, Fupcase) if your file system | |
119 | likes that */ | |
2f019854 | 120 | #define FILE_SYSTEM_CASE Fmsdos_downcase_filename |
1b94449f | 121 | |
29675256 RS |
122 | /* Define this to be the separator between devices and paths */ |
123 | #define DEVICE_SEP ':' | |
124 | ||
125 | /* We'll support either convention on MSDOG. */ | |
126 | #define IS_DIRECTORY_SEP(_c_) ((_c_) == '/' || (_c_) == '\\') | |
127 | #define IS_ANY_SEP(_c_) (IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP (_c_)) | |
128 | ||
a7d40caa KH |
129 | /* bcopy under djgpp is quite safe */ |
130 | #define GAP_USE_BCOPY | |
131 | #define BCOPY_UPWARD_SAFE 1 | |
132 | #define BCOPY_DOWNWARD_SAFE 1 | |
eb246adb | 133 | |
b77c5660 KH |
134 | /* Mode line description of a buffer's type. */ |
135 | #define MODE_LINE_BINARY_TEXT(buf) (NILP(buf->buffer_file_type) ? "T" : "B") | |
136 | ||
7a05f3c7 | 137 | /* Do we have POSIX signals? */ |
7a05f3c7 | 138 | #define POSIX_SIGNALS |
7a05f3c7 | 139 | |
eb246adb RS |
140 | /* We have (the code to control) a mouse. */ |
141 | #define HAVE_MOUSE | |
87485d6f | 142 | |
61c88d95 RS |
143 | /* We canuse mouse menus. */ |
144 | #define HAVE_MENUS | |
145 | ||
87485d6f MW |
146 | /* Define one of these for easier conditionals. */ |
147 | #ifdef HAVE_X_WINDOWS | |
0405f8d9 EZ |
148 | /* We need a little extra space, see ../../lisp/loadup.el and the |
149 | commentary below, in the non-X branch. The 140KB number was | |
150 | measured on GNU/Linux and on MS-WIndows. */ | |
241c4680 | 151 | #define SYSTEM_PURESIZE_EXTRA (-170000+140000) |
87485d6f MW |
152 | #define LIBX11_SYSTEM -lxext -lsys |
153 | #else | |
0405f8d9 EZ |
154 | /* We need a little extra space, see ../../lisp/loadup.el. |
155 | As of 20091024, DOS-specific files use up 62KB of pure space. But | |
156 | overall, we end up wasting 130KB of pure space, because | |
157 | BASE_PURESIZE starts at 1.47MB, while we need only 1.3MB (including | |
158 | non-DOS specific files and load history; the latter is about 55K, | |
159 | but depends on the depth of the top-level Emacs directory in the | |
160 | directory tree). Given the unknown policy of different DPMI | |
161 | hosts regarding loading of untouched pages, I'm not going to risk | |
162 | enlarging Emacs footprint by another 100+ KBytes. */ | |
241c4680 | 163 | #define SYSTEM_PURESIZE_EXTRA (-170000+65000) |
87485d6f | 164 | #endif |
4b3fd719 | 165 | |
c3d0ee51 | 166 | /* Tell the garbage collector that setjmp is known to save all |
4b3fd719 GM |
167 | registers relevant for conservative garbage collection in the |
168 | jmp_buf. */ | |
169 | ||
170 | #define GC_SETJMP_WORKS 1 | |
2f169c38 | 171 | #define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS |
ab5796a9 MB |
172 | |
173 | /* arch-tag: d184f860-815d-4ff4-8187-d05c0f3c37d0 | |
174 | (do not change this comment) */ |