(tar-extract): Set default-directory to that of the superior buffer, not the
[bpt/emacs.git] / src / s / ms-w32.h
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1/* System description file for Windows NT.
2 Copyright (C) 1993, 1994 Free Software Foundation, Inc.
3
4This file is part of GNU Emacs.
5
6GNU Emacs is free software; you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation; either version 2, or (at your option)
9any later version.
10
11GNU Emacs is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14GNU General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with GNU Emacs; see the file COPYING. If not, write to
18the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
19
20/*
21 * Define symbols to identify the version of Unix this is.
22 * Define all the symbols that apply correctly.
23 */
24
25/* #define UNIPLUS */
26/* #define USG5 */
27/* #define USG */
28/* #define HPUX */
29/* #define UMAX */
30/* #define BSD4_1 */
31/* #define BSD4_2 */
32/* #define BSD4_3 */
33/* #define BSD */
34/* #define VMS */
35#ifndef WINDOWSNT
36#define WINDOWSNT
37#endif
38#ifndef DOS_NT
39#define DOS_NT /* MSDOS or WINDOWSNT */
40#endif
41
42/* SYSTEM_TYPE should indicate the kind of system you are using.
43 It sets the Lisp variable system-type. */
44
45#define SYSTEM_TYPE "windows-nt"
46#define SYMS_SYSTEM syms_of_ntterm ()
47
48#define NO_MATHERR
49#define HAVE_FREXP
50#define HAVE_FMOD
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/* Emacs can read input using SIGIO and buffering characters itself,
59 or using CBREAK mode and making C-g cause SIGINT.
60 The choice is controlled by the variable interrupt_input.
61
62 Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
63
64 Emacs uses the presence or absence of the SIGIO macro to indicate
65 whether or not signal-driven I/O is possible. It uses
66 INTERRUPT_INPUT to decide whether to use it by default.
67
68 SIGIO can be used only on systems that implement it (4.2 and 4.3).
69 CBREAK mode has two disadvantages
70 1) At least in 4.2, it is impossible to handle the Meta key properly.
71 I hear that in system V this problem does not exist.
72 2) Control-G causes output to be discarded.
73 I do not know whether this can be fixed in system V.
74
75 Another method of doing input is planned but not implemented.
76 It would have Emacs fork off a separate process
77 to read the input and send it to the true Emacs process
78 through a pipe. */
79
80#define INTERRUPT_INPUT
81
82/* Letter to use in finding device name of first pty,
83 if system supports pty's. 'a' means it is /dev/ptya0 */
84
85#define FIRST_PTY_LETTER 'a'
86
87/*
88 * Define HAVE_TERMIOS if the system provides POSIX-style
89 * functions and macros for terminal control.
90 *
91 * Define HAVE_TERMIO if the system provides sysV-style ioctls
92 * for terminal control.
93 *
94 * Do not define both. HAVE_TERMIOS is preferred, if it is
95 * supported on your system.
96 */
97
98/* #define HAVE_TERMIOS */
99/* #define HAVE_TERMIO */
100
101/*
102 * Define HAVE_TIMEVAL if the system supports the BSD style clock values.
103 * Look in <sys/time.h> for a timeval structure.
104 */
105
106/* #define HAVE_TIMEVAL */
107
108/*
109 * Define HAVE_SELECT if the system supports the `select' system call.
110 */
111
112/* #define HAVE_SELECT */
113
114/*
115 * Define HAVE_PTYS if the system supports pty devices.
116 */
117
118/* #define HAVE_PTYS */
119
120/*
121 * Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
122 * The 4.2 opendir, etc., library functions.
123 */
124
125/* #define NONSYSTEM_DIR_LIBRARY */
126
127/* Define this symbol if your system has the functions bcopy, etc. */
128
129#define BSTRING
130#define bzero(b, l) memset(b, 0, l)
131#define bcopy(s, d, l) memcpy(d, s, l)
132#define bcmp(a, b, l) memcmp(a, b, l)
133
134/* subprocesses should be defined if you want to
135 have code for asynchronous subprocesses
136 (as used in M-x compile and M-x shell).
137 This is generally OS dependent, and not supported
138 under most USG systems. */
139
140#define subprocesses
141
142/* If your system uses COFF (Common Object File Format) then define the
143 preprocessor symbol "COFF". */
144
145#define COFF
146
147/* define MAIL_USE_FLOCK if the mailer uses flock
148 to interlock access to /usr/spool/mail/$USER.
149 The alternative is that a lock file named
150 /usr/spool/mail/$USER.lock. */
151
152/* #define MAIL_USE_FLOCK */
153
154/* Define CLASH_DETECTION if you want lock files to be written
155 so that Emacs can tell instantly when you try to modify
156 a file that someone else has modified in his Emacs. */
157
158/* #define CLASH_DETECTION */
159
160/* Define this if your operating system declares signal handlers to
161 have a type other than the usual. `The usual' is `void' for ANSI C
162 systems (i.e. when the __STDC__ macro is defined), and `int' for
163 pre-ANSI systems. If you're using GCC on an older system, __STDC__
164 will be defined, but the system's include files will still say that
165 signal returns int or whatever; in situations like that, define
166 this to be what the system's include files want. */
167/* #define SIGTYPE int */
168
169/* If the character used to separate elements of the executable path
170 is not ':', #define this to be the appropriate character constant. */
171#define SEPCHAR ';'
172
173/* ============================================================ */
174
175/* Here, add any special hacks needed
176 to make Emacs work on this system. For example,
177 you might define certain system call names that don't
178 exist on your system, or that do different things on
179 your system and must be used only through an encapsulation
180 (Which you should place, by convention, in sysdep.c). */
181
182/* Some compilers tend to put everything declared static
183 into the initialized data area, which becomes pure after dumping Emacs.
184 On these systems, you must #define static as nothing to foil this.
185 Note that emacs carefully avoids static vars inside functions. */
186
187/* Define this to be the separator between path elements */
188#define DIRECTORY_SEP '\\'
189
190/* Define this to be the separator between devices and paths */
191#define DEVICE_SEP ':'
192
193/* We'll support either convention on NT. */
194#define IS_DIRECTORY_SEP(_c_) ((_c_) == '/' || (_c_) == '\\')
195#define IS_ANY_SEP(_c_) (IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP (_c_))
196
197/* The null device on Windows NT. */
198#define NULL_DEVICE "NUL:"
199#define EXEC_SUFFIXES ".exe:.com:.bat:"
200
201#ifndef MAXPATHLEN
202#define MAXPATHLEN _MAX_PATH
203#endif
204
205#define HAVE_DUP2 1
206#define HAVE_RENAME 1
207#define HAVE_RMDIR 1
208#define HAVE_MKDIR 1
209#define HAVE_GETHOSTNAME 1
210
211/* These have to be defined because our compilers treat __STDC__ as being
212 defined (most of them anyway). */
213
214#define access _access
215#define chdir _chdir
216#define chmod _chmod
217#define close _close
218#define creat _creat
219#define dup _dup
220#define dup2 _dup2
221#define execlp _execlp
222#define execvp _execvp
223#define getpid _getpid
224#define index strchr
225#define isatty _isatty
226#define link _link
227#define lseek _lseek
228#define mkdir _mkdir
229#define mktemp _mktemp
230#define open _open
231#define pipe _pipe
232#define random rand
233#define read _read
234#define rmdir _rmdir
235#define sleep nt_sleep
236#define srandom srand
237#define unlink _unlink
238#define umask _umask
239#define write _write
240#define _longjmp longjmp
241#define spawnve win32_spawnve
242#define wait win32_wait
243#define signal win32_signal
244#define rindex strrchr
245
246/* Defines that we need that aren't in the standard signal.h */
247#define SIGHUP 1 /* Hang up */
248#define SIGQUIT 3 /* Quit process */
249#define SIGTRAP 5 /* Trace trap */
250#define SIGKILL 9 /* Die, die die */
251#define SIGPIPE 13 /* Write on pipe with no readers */
252#define SIGALRM 14 /* Alarm */
253#define SIGCHLD 18 /* Death of child */
254
255/* For integration with MSDOS support. */
256#define getdisk() (_getdrive () - 1)
257#define getdefdir(_drv, _buf) _getdcwd (_drv, _buf, MAXPATHLEN)
258
259/* Define this so that winsock.h definitions don't get included when windows.h
260 is... I don't know if they do the right thing for emacs. For this to
261 have proper effect, config.h must always be included before windows.h. */
262#define _WINSOCKAPI_ 1
263
264/* ============================================================ */
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265
266/* Give us extra pure storage. */
267
268#define SYSTEM_PURESIZE_EXTRA 52000