* m/amdx86-64.h (HAVE_LIB64_DIR): Consolidate ifdefs.
[bpt/emacs.git] / src / s / msdos.h
1 /* System description file for MS-DOS
2
3 Copyright (C) 1993, 1996, 1997, 2001, 2002, 2003, 2004, 2005, 2006,
4 2007, 2008 Free Software Foundation, Inc.
5
6 This file is part of GNU Emacs.
7
8 GNU Emacs is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
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
19 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
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 #ifndef MSDOS
30 #define MSDOS
31 #endif
32
33 #ifdef __GO32__
34 #ifndef __DJGPP__
35 #define __DJGPP__ 1 /* V2 defines __DJGPP__ == 2 */
36 #endif
37 #else
38 You lose; /* Emacs for DOS must be compiled with DJGPP */
39 #endif
40
41 #define DOS_NT /* MSDOS or WINDOWSNT */
42 #undef BSD_SYSTEM
43 #undef VMS
44
45 /* SYSTEM_TYPE should indicate the kind of system you are using.
46 It sets the Lisp variable system-type. */
47
48 #define SYSTEM_TYPE "ms-dos"
49
50 #define SYMS_SYSTEM syms_of_dosfns();syms_of_msdos();syms_of_win16select()
51
52 /* NOMULTIPLEJOBS should be defined if your system's shell
53 does not have "job control" (the ability to stop a program,
54 run some other program, then continue the first one). */
55
56 #define NOMULTIPLEJOBS
57
58 #define SYSV_SYSTEM_DIR
59
60 /* Define this symbol if your system has the functions bcopy, etc. */
61
62 #define BSTRING
63
64 /* Define this is the compiler understands `volatile'. */
65 #define HAVE_VOLATILE
66
67
68 /* subprocesses should be defined if you want to
69 have code for asynchronous subprocesses
70 (as used in M-x compile and M-x shell).
71 This is the only system that needs this. */
72
73 #undef subprocesses
74
75 /* If your system uses COFF (Common Object File Format) then define the
76 preprocessor symbol "COFF". */
77
78 #define COFF
79
80 /* Here, on a separate page, add any special hacks needed
81 to make Emacs work on this system. For example,
82 you might define certain system call names that don't
83 exist on your system, or that do different things on
84 your system and must be used only through an encapsulation
85 (Which you should place, by convention, in sysdep.c). */
86 \f
87 /* Avoid incompatibilities between gmalloc.c and system header files
88 in how to declare valloc. */
89 #define GMALLOC_INHIBIT_VALLOC
90
91 /* setjmp and longjmp can safely replace _setjmp and _longjmp,
92 but they will run slower. */
93
94 #define _setjmp setjmp
95 #define _longjmp longjmp
96
97 #if __DJGPP__ < 2
98
99 /* New chdir () routine.
100 DJGPP v2.0 and later doesn't need it because its chdir() does
101 set the drive itself. */
102 #ifdef chdir
103 #undef chdir
104 #endif
105 #define chdir sys_chdir
106
107 #define LIBS_SYSTEM -lpc /* isn't required in DJGPP v2.0, either */
108
109 #endif /* __DJGPP__ < 2 */
110
111 #if __DJGPP__ > 1
112
113 #define DATA_START (&etext + 1)
114 #define TEXT_START &start
115
116 #define _NAIVE_DOS_REGS
117
118 #else /* not __DJGPP__ > 1 */
119
120 /* This somehow needs to be defined even though we use COFF. */
121 #define TEXT_START -1
122
123 #endif /* not __DJGPP__ > 1 */
124
125 #define ORDINARY_LINK
126
127 /* command.com does not understand `...` so we define this. */
128 #define LIB_GCC -Lgcc
129 #define SEPCHAR ';'
130
131 #define NULL_DEVICE "nul"
132
133 #if __DJGPP__ < 2
134 #define O_RDONLY 0x0001
135 #define O_WRONLY 0x0002
136 #define O_RDWR 0x0004
137 #define O_CREAT 0x0100
138 #define O_TRUNC 0x0200
139 #define O_EXCL 0x0400
140 #define O_APPEND 0x0800
141 #define O_TEXT 0x4000
142 #define O_BINARY 0x8000
143 #define NO_MATHERR
144 #endif
145
146 #define HAVE_INVERSE_HYPERBOLIC
147 #define FLOAT_CHECK_DOMAIN
148
149 /* When $TERM is "internal" then this is substituted: */
150 #define INTERNAL_TERMINAL "pc|bios|IBM PC with color display:\
151 :co#80:li#25:Co#16:pa#256:km:ms:cm=<CM>:cl=<CL>:ce=<CE>:\
152 :se=</SO>:so=<SO>:us=<UL>:ue=</UL>:md=<BD>:mh=<DIM>:mb=<BL>:mr=<RV>:me=<NV>:\
153 :AB=<BG %d>:AF=<FG %d>:op=<DefC>:"
154
155 /* Define this to a function (Fdowncase, Fupcase) if your file system
156 likes that */
157 #define FILE_SYSTEM_CASE Fmsdos_downcase_filename
158
159 /* Define this to be the separator between devices and paths */
160 #define DEVICE_SEP ':'
161
162 /* We'll support either convention on MSDOG. */
163 #define IS_DIRECTORY_SEP(_c_) ((_c_) == '/' || (_c_) == '\\')
164 #define IS_ANY_SEP(_c_) (IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP (_c_))
165
166 /* Call init_gettimeofday when TZ changes. */
167 #if __DJGPP__ < 2
168 #define LOCALTIME_CACHE
169 #define tzset init_gettimeofday
170 #endif
171
172 /* bcopy under djgpp is quite safe */
173 #define GAP_USE_BCOPY
174 #define BCOPY_UPWARD_SAFE 1
175 #define BCOPY_DOWNWARD_SAFE 1
176
177 /* Mode line description of a buffer's type. */
178 #define MODE_LINE_BINARY_TEXT(buf) (NILP(buf->buffer_file_type) ? "T" : "B")
179
180 /* Do we have POSIX signals? */
181 #if __DJGPP__ > 1
182 #define POSIX_SIGNALS
183 #endif
184
185 /* We have (the code to control) a mouse. */
186 #define HAVE_MOUSE
187
188 /* We canuse mouse menus. */
189 #define HAVE_MENUS
190
191 /* Define one of these for easier conditionals. */
192 #ifdef HAVE_X_WINDOWS
193 /* We need a little extra space, see ../../lisp/loadup.el */
194 #define SYSTEM_PURESIZE_EXTRA 15000
195 #define LIBX11_SYSTEM -lxext -lsys
196 #else
197 /* We need a little extra space, see ../../lisp/loadup.el */
198 #define SYSTEM_PURESIZE_EXTRA 50000
199 #endif
200
201 /* Tell the garbage collector that setjmp is known to save all
202 registers relevant for conservative garbage collection in the
203 jmp_buf. */
204
205 #define GC_SETJMP_WORKS 1
206 #define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
207
208 /* arch-tag: d184f860-815d-4ff4-8187-d05c0f3c37d0
209 (do not change this comment) */