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+/* System description file for Windows NT.
+   Copyright (C) 1993, 1994 Free Software Foundation, Inc.
+
+This file is part of GNU Emacs.
+
+GNU Emacs is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Emacs is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Emacs; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+/*
+ *      Define symbols to identify the version of Unix this is.
+ *      Define all the symbols that apply correctly.
+ */
+
+/* #define UNIPLUS */
+/* #define USG5 */
+/* #define USG */
+/* #define HPUX */
+/* #define UMAX */
+/* #define BSD4_1 */
+/* #define BSD4_2 */
+/* #define BSD4_3 */
+/* #define BSD */
+/* #define VMS */
+#ifndef WINDOWSNT
+#define WINDOWSNT
+#endif
+#ifndef DOS_NT
+#define DOS_NT  /* MSDOS or WINDOWSNT */
+#endif
+
+/* SYSTEM_TYPE should indicate the kind of system you are using.
+ It sets the Lisp variable system-type.  */
+
+#define SYSTEM_TYPE "windows-nt"
+#define SYMS_SYSTEM syms_of_ntterm ()
+
+#define NO_MATHERR
+#define HAVE_FREXP
+#define HAVE_FMOD
+
+/* NOMULTIPLEJOBS should be defined if your system's shell
+ does not have "job control" (the ability to stop a program,
+ run some other program, then continue the first one).  */
+
+/* #define NOMULTIPLEJOBS */
+
+/* Emacs can read input using SIGIO and buffering characters itself,
+   or using CBREAK mode and making C-g cause SIGINT.
+   The choice is controlled by the variable interrupt_input.
+
+   Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
+
+   Emacs uses the presence or absence of the SIGIO macro to indicate
+   whether or not signal-driven I/O is possible.  It uses
+   INTERRUPT_INPUT to decide whether to use it by default.
+
+   SIGIO can be used only on systems that implement it (4.2 and 4.3).
+   CBREAK mode has two disadvantages
+     1) At least in 4.2, it is impossible to handle the Meta key properly.
+        I hear that in system V this problem does not exist.
+     2) Control-G causes output to be discarded.
+        I do not know whether this can be fixed in system V.
+
+   Another method of doing input is planned but not implemented.
+   It would have Emacs fork off a separate process
+   to read the input and send it to the true Emacs process
+   through a pipe. */
+
+#define INTERRUPT_INPUT
+
+/* Letter to use in finding device name of first pty,
+  if system supports pty's.  'a' means it is /dev/ptya0  */
+
+#define FIRST_PTY_LETTER 'a'
+
+/*
+ *      Define HAVE_TERMIOS if the system provides POSIX-style
+ *      functions and macros for terminal control.
+ *
+ *      Define HAVE_TERMIO if the system provides sysV-style ioctls
+ *      for terminal control.
+ *
+ *      Do not define both.  HAVE_TERMIOS is preferred, if it is
+ *      supported on your system.
+ */
+
+/* #define HAVE_TERMIOS */
+/* #define HAVE_TERMIO */
+
+/*
+ *      Define HAVE_TIMEVAL if the system supports the BSD style clock values.
+ *      Look in <sys/time.h> for a timeval structure.
+ */
+
+/* #define HAVE_TIMEVAL */
+
+/*
+ *      Define HAVE_SELECT if the system supports the `select' system call.
+ */
+
+/* #define HAVE_SELECT */
+
+/*
+ *      Define HAVE_PTYS if the system supports pty devices.
+ */
+
+/* #define HAVE_PTYS */
+
+/*
+ *      Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
+ *      The 4.2 opendir, etc., library functions.
+ */
+
+/* #define NONSYSTEM_DIR_LIBRARY */
+
+/* Define this symbol if your system has the functions bcopy, etc. */
+
+#define BSTRING
+#define bzero(b, l) memset(b, 0, l)
+#define bcopy(s, d, l) memcpy(d, s, l)
+#define bcmp(a, b, l) memcmp(a, b, l)
+
+/* subprocesses should be defined if you want to
+   have code for asynchronous subprocesses
+   (as used in M-x compile and M-x shell).
+   This is generally OS dependent, and not supported
+   under most USG systems. */
+
+#define subprocesses
+
+/* If your system uses COFF (Common Object File Format) then define the
+   preprocessor symbol "COFF". */
+
+#define COFF
+
+/* define MAIL_USE_FLOCK if the mailer uses flock
+   to interlock access to /usr/spool/mail/$USER.
+   The alternative is that a lock file named
+   /usr/spool/mail/$USER.lock.  */
+
+/* #define MAIL_USE_FLOCK */
+
+/* Define CLASH_DETECTION if you want lock files to be written
+   so that Emacs can tell instantly when you try to modify
+   a file that someone else has modified in his Emacs.  */
+
+/* #define CLASH_DETECTION */
+
+/* Define this if your operating system declares signal handlers to
+   have a type other than the usual.  `The usual' is `void' for ANSI C
+   systems (i.e. when the __STDC__ macro is defined), and `int' for
+   pre-ANSI systems.  If you're using GCC on an older system, __STDC__
+   will be defined, but the system's include files will still say that
+   signal returns int or whatever; in situations like that, define
+   this to be what the system's include files want.  */
+/* #define SIGTYPE int */
+
+/* If the character used to separate elements of the executable path
+   is not ':', #define this to be the appropriate character constant.  */
+#define SEPCHAR ';'
+
+/* ============================================================ */
+
+/* Here, add any special hacks needed
+   to make Emacs work on this system.  For example,
+   you might define certain system call names that don't
+   exist on your system, or that do different things on
+   your system and must be used only through an encapsulation
+   (Which you should place, by convention, in sysdep.c).  */
+
+/* Some compilers tend to put everything declared static
+   into the initialized data area, which becomes pure after dumping Emacs.
+   On these systems, you must #define static as nothing to foil this.
+   Note that emacs carefully avoids static vars inside functions.  */
+
+/* Define this to be the separator between path elements */
+#define DIRECTORY_SEP '\\'
+
+/* Define this to be the separator between devices and paths */
+#define DEVICE_SEP ':'
+
+/* We'll support either convention on NT.  */
+#define IS_DIRECTORY_SEP(_c_) ((_c_) == '/' || (_c_) == '\\')
+#define IS_ANY_SEP(_c_) (IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP (_c_))
+
+/* The null device on Windows NT. */
+#define NULL_DEVICE     "NUL:"
+#define EXEC_SUFFIXES   ".exe:.com:.bat:"
+
+#ifndef MAXPATHLEN
+#define MAXPATHLEN      _MAX_PATH
+#endif
+
+#define HAVE_DUP2       1
+#define HAVE_RENAME     1
+#define HAVE_RMDIR      1
+#define HAVE_MKDIR      1
+#define HAVE_GETHOSTNAME        1
+
+/* These have to be defined because our compilers treat __STDC__ as being
+   defined (most of them anyway). */
+
+#define access  _access
+#define chdir   _chdir
+#define chmod   _chmod
+#define close   _close
+#define creat   _creat
+#define dup     _dup
+#define dup2    _dup2
+#define execlp  _execlp
+#define execvp  _execvp
+#define getpid  _getpid
+#define index   strchr
+#define isatty  _isatty
+#define link    _link
+#define lseek   _lseek
+#define mkdir   _mkdir
+#define mktemp  _mktemp
+#define open    _open
+#define pipe    _pipe
+#define random  rand
+#define read    _read
+#define rmdir   _rmdir
+#define sleep   nt_sleep
+#define srandom srand
+#define unlink  _unlink
+#define umask   _umask
+#define write   _write
+#define _longjmp        longjmp
+#define spawnve win32_spawnve
+#define wait    win32_wait
+#define signal  win32_signal
+#define rindex  strrchr
+
+/* Defines that we need that aren't in the standard signal.h  */
+#define SIGHUP  1               /* Hang up */
+#define SIGQUIT 3               /* Quit process */
+#define SIGTRAP 5               /* Trace trap */
+#define SIGKILL 9               /* Die, die die */
+#define SIGPIPE 13              /* Write on pipe with no readers */
+#define SIGALRM 14              /* Alarm */
+#define SIGCHLD 18              /* Death of child */
+
+/* For integration with MSDOS support.  */
+#define getdisk()               (_getdrive () - 1)
+#define getdefdir(_drv, _buf)   _getdcwd (_drv, _buf, MAXPATHLEN)
+
+/* Define this so that winsock.h definitions don't get included when windows.h
+   is...  I don't know if they do the right thing for emacs.  For this to
+   have proper effect, config.h must always be included before windows.h.  */
+#define _WINSOCKAPI_    1
+
+/* ============================================================ */