--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/s/msdos.h	Mon Aug 13 08:45:50 2007 +0200
@@ -0,0 +1,225 @@
+/* System description file for MS-DOS
+
+   Copyright (C) 1993 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 XEmacs; see the file COPYING.  If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* Synched up with: FSF 19.31. */
+
+/* Note: lots of stuff here was taken from s-msdos.h in demacs. */
+
+
+/*
+ *	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 MSDOS
+#define MSDOS
+#endif
+
+#ifdef __GO32__
+#ifndef __DJGPP__
+#define __DJGPP__ 1	/* V2 defines __DJGPP__ == 2 */
+#endif
+#else
+You lose; /* Emacs for DOS must be compiled with DJGPP */
+#endif
+
+#define DOS_NT	/* MSDOS or WINDOWSNT */
+#undef BSD
+#undef VMS
+
+/* SYSTEM_TYPE should indicate the kind of system you are using.
+ It sets the Lisp variable system-type.  */
+
+#define SYSTEM_TYPE "ms-dos"
+
+#define SYMS_SYSTEM syms_of_dosfns();syms_of_msdos()
+
+/* 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_PTYS if the system supports pty devices.
+ */
+
+/* #define HAVE_PTYS */
+
+/* MSDOS has dirent.h but doesn't behave otherwise like the SYSV
+   directory functions.  We have special tests for this in
+   sysdir.h. */
+
+#undef SYSV_SYSTEM_DIR
+
+/* Define this is the compiler understands `volatile'.  */
+#define HAVE_VOLATILE
+
+#define NO_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 */
+
+/* Here, on a separate page, 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).  */
+
+/* Avoid incompatibilities between gmalloc.c and system header files
+   in how to declare valloc.  */
+#define GMALLOC_INHIBIT_VALLOC
+
+/* setjmp and longjmp can safely replace _setjmp and _longjmp,
+   but they will run slower.  */
+
+#define _setjmp setjmp
+#define _longjmp longjmp
+
+#if __DJGPP__ < 2
+
+#define NO_MODE_T
+
+/* New chdir () routine.
+   DJGPP v2.0 and later doesn't need it because its chdir() does
+   set the drive itself. */
+#ifdef chdir
+#undef chdir
+#endif
+#define chdir sys_chdir
+
+#define LIBS_SYSTEM -lpc  /* isn't required in DJGPP v2.0, either */
+
+#endif /* __DJGPP__ < 2 */
+
+#if __DJGPP__ > 1
+
+#define DATA_START  (&etext + 1)
+#define TEXT_START  &start
+#define TEXT_END    &etext
+
+#define _NAIVE_DOS_REGS
+
+#else /* not __DJGPP__ > 1 */
+
+/* This somehow needs to be defined even though we use COFF.  */
+#define TEXT_START -1
+
+#endif /* not __DJGPP__ > 1 */
+
+#define ORDINARY_LINK
+
+/* command.com does not understand `...` so we define this.  */
+#define LIB_GCC -Lgcc
+#define DONT_NEED_ENVIRON
+#define SEPCHAR ';'
+
+#define NULL_DEVICE "nul"
+#define EXEC_SUFFIXES ".exe:.com:.bat:"
+
+#if __DJGPP__ < 2
+#define O_RDONLY        0x0001
+#define O_WRONLY        0x0002
+#define O_RDWR          0x0004
+#define O_CREAT         0x0100
+#define O_TRUNC         0x0200
+#define O_EXCL          0x0400
+#define O_APPEND        0x0800
+#define O_TEXT          0x4000
+#define O_BINARY        0x8000
+#define NO_MATHERR
+#endif
+
+#define HAVE_INVERSE_HYPERBOLIC
+#define FLOAT_CHECK_DOMAIN
+
+/* When $TERM is "internal" then this is substituted:  */
+#define INTERNAL_TERMINAL "pc|bios|IBM PC with colour display:\
+:co#80:li#25:km:ms:cm=<CM>:cl=<CL>:ce=<CE>:"
+
+/* Define this to a function (Fdowncase, Fupcase) if your file system
+   likes that */
+#define FILE_SYSTEM_CASE Fmsdos_downcase_filename
+
+/* Define this to be the separator between devices and paths */
+#define DEVICE_SEP ':'
+
+/* We'll support either convention on MSDOG.  */
+#define IS_DIRECTORY_SEP(_c_) ((_c_) == '/' || (_c_) == '\\')
+#define IS_ANY_SEP(_c_) (IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP (_c_))
+
+/* Call init_gettimeofday when TZ changes.  */
+#if __DJGPP__ < 2
+#define LOCALTIME_CACHE
+#define tzset init_gettimeofday
+#endif
+
+/* bcopy under djgpp is quite safe */
+#define GAP_USE_BCOPY
+#define BCOPY_UPWARD_SAFE 1
+#define BCOPY_DOWNWARD_SAFE 1
+
+/* Mode line description of a buffer's type.  */
+#define MODE_LINE_BINARY_TEXT(buf) (NILP(buf->buffer_file_type) ? "T" : "B")
+
+/* Do we have POSIX signals?  */
+#if __DJGPP__ > 1
+#define POSIX_SIGNALS
+#endif
+
+/* We have (the code to control) a mouse.  */
+#define HAVE_MOUSE
+
+/* We canuse mouse menus.  */
+#define HAVE_MENUS
+
+/* We have support for faces.  */
+#define HAVE_FACES
+
+/* Define one of these for easier conditionals.  */
+#ifdef HAVE_X_WINDOWS
+/* We need a little extra space, see ../../lisp/loadup.el */
+#define SYSTEM_PURESIZE_EXTRA 15000
+#define HAVE_X11R5
+#define LIBX11_SYSTEM -lxext -lsys
+#else
+/* We need a little extra space, see ../../lisp/loadup.el */
+#define SYSTEM_PURESIZE_EXTRA 85000
+#endif