--- /dev/null
+/* system description file for cygwin32.
+ Copyright (C) 1993, 1994, 1995 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. */
+
+/* Building under cygwin
+ *
+ * The approach I have taken with this port is to use primarily the
+ * UNIX code base adding stuff that is MS-Windows specific. This works
+ * quite well, and is in keeping with my perception of the cygwin
+ * philosophy. Note that if you make changes to this file you do NOT
+ * want to define WIN32_NATIVE (formerly "WINDOWSNT"), I repeat - do
+ * not define this, it will break everything horribly. What does get
+ * defined is HAVE_MS_WINDOWS, but this is done by configure and only
+ * applies to the window system.
+ *
+ * When building make sure your HOME path is unix style - i.e. without
+ * a drive letter.
+ *
+ * once you have done this, configure and make.
+ *
+ * windows '95 - I haven't tested this under '95, it will probably
+ * build but I konw there are some limitations with cygwin under 95 so
+ * YMMV. I build with NT4 SP3.
+ *
+ * Andy Piper <andy@xemacs.org> 8/1/98
+ * http://www.xemacs.freeserve.co.uk/ */
+
+/* Identify ourselves */
+#define CYGWIN
+
+/* cheesy way to determine cygwin version */
+#ifndef NOT_C_CODE
+# include <signal.h>
+# ifdef HAVE_CYGWIN_VERSION_H
+# include <cygwin/version.h>
+# else
+# ifdef SIGIO
+# define CYGWIN_VERSION_DLL_MAJOR 19
+# define CYGWIN_VERSION_DLL_MINOR 0
+# define CYGWIN_B19
+# else
+# define CYGWIN_VERSION_DLL_MAJOR 18
+# define CYGWIN_VERSION_DLL_MINOR 0
+# define BROKEN_CYGWIN
+# endif
+# endif
+
+# if CYGWIN_VERSION_DLL_MAJOR < 20
+
+void cygwin32_win32_to_posix_path_list (const char*, char*);
+int cygwin32_win32_to_posix_path_list_buf_size (const char*);
+void cygwin32_posix_to_win32_path_list (const char*, char*);
+int cygwin32_posix_to_win32_path_list_buf_size (const char*);
+
+#define cygwin_win32_to_posix_path_list cygwin32_win32_to_posix_path_list
+#define cygwin_win32_to_posix_path_list_buf_size \
+ cygwin32_win32_to_posix_path_list_buf_size
+#define cygwin_posix_to_win32_path_list cygwin32_posix_to_win32_path_list
+#define cygwin_posix_to_win32_path_list_buf_size \
+ cygwin32_posix_to_win32_path_list_buf_size
+
+struct timeval;
+struct timezone;
+struct itimerval;
+struct stat;
+int gettimeofday (struct timeval *tp, struct timezone *tzp);
+int gethostname (char* name, int namelen);
+char* mktemp (char *);
+double logb (double);
+void sync (void);
+int ioctl (int, int, ...);
+ /* sys/stat.h */
+int lstat (const char *path, struct stat *buf);
+ /* unistd.h */
+int readlink (const char *path, void *buf, unsigned int bufsiz);
+int symlink (const char *name1, const char *name2);
+ /* sys/time.h */
+int setitimer (int which, const struct itimerval *value,
+ struct itimerval *ovalue);
+int utimes (char *file, struct timeval *tvp);
+
+int srandom (unsigned seed);
+long random (void);
+
+# else /* not CYGWIN_VERSION_DLL_MAJOR < 20 */
+
+void cygwin_win32_to_posix_path_list (const char*, char*);
+int cygwin_win32_to_posix_path_list_buf_size (const char*);
+void cygwin_posix_to_win32_path_list (const char*, char*);
+int cygwin_posix_to_win32_path_list_buf_size (const char*);
+
+# endif /* CYGWIN_VERSION_DLL_MAJOR < 20 */
+
+# if CYGWIN_VERSION_DLL_MAJOR <= 20
+char *getpass (const char *prompt);
+double logb (double);
+# endif /* CYGWIN_VERSION_DLL_MAJOR <= 20 */
+
+/* Still left out of 1.1! */
+double logb (double);
+int killpg (int pgrp, int sig);
+
+#endif
+
+#ifndef ORDINARY_LINK
+#define ORDINARY_LINK
+#endif
+
+#define C_SWITCH_SYSTEM -Wno-sign-compare -fno-caller-saves
+#define LIBS_SYSTEM -lwinmm
+#define WIN32_LEAN_AND_MEAN
+
+#define TEXT_START -1
+#define TEXT_END -1
+#define DATA_END -1
+#define HEAP_IN_DATA
+#define NO_LIM_DATA
+#define UNEXEC "unexcw.o"
+
+#ifdef CYGWIN_VERSION_DLL_MAJOR
+#if 0
+/* #### FIXME: although defining BROKEN_SIGIO is correct for proper ^G
+ behavior, bugs in cygwin mean that xemacs locks up frequently if
+ this is defined. */
+#define BROKEN_SIGIO
+#endif
+#else
+#define PROCESS_IO_BLOCKING
+#endif
+#define strnicmp strncasecmp
+#ifndef HAVE_SOCKETS
+#define HAVE_SOCKETS
+#endif
+#define OBJECTS_SYSTEM ntplay.o
+
+#undef MAIL_USE_SYSTEM_LOCK
+
+/* Do not define LOAD_AVE_TYPE or LOAD_AVE_CVT
+ since there is no load average available. */
+
+/* Define VIRT_ADDR_VARIES if the virtual addresses of
+ pure and impure space as loaded can vary, and even their
+ relative order cannot be relied on.
+
+ Otherwise Emacs assumes that text space precedes data space,
+ numerically. */
+
+/* Text does precede data space, but this is never a safe assumption. */
+#define VIRT_ADDR_VARIES
+
+/* If you are compiling with a non-C calling convention but need to
+ declare vararg routines differently, put it here */
+#define _VARARGS_ __cdecl
+
+/* If you are providing a function to something that will call the
+ function back (like a signal handler and signal, or main) its calling
+ convention must be whatever standard the libraries expect */
+#define _CALLBACK_ __cdecl
+
+/* SYSTEM_TYPE should indicate the kind of system you are using.
+ It sets the Lisp variable system-type. */
+
+#define SYSTEM_TYPE "cygwin32"
+
+#define NO_MATHERR
+
+/*
+ * Define HAVE_PTYS if the system supports pty devices.
+ */
+
+#define HAVE_PTYS
+
+/* 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. */
+
+/* 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). */
+
+/* Define this to be the separator between path elements */
+/* #define DIRECTORY_SEP XINT (Vdirectory_sep_char) */
+
+/* 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_))
+#define EXEC_SUFFIXES ".exe:.com:.bat:.cmd:"
+
+/* We need a little extra space, see ../../lisp/loadup.el */
+#define SYSTEM_PURESIZE_EXTRA 15000
+
+#define CYGWIN_CONV_PATH(src, dst) \
+dst = alloca (cygwin_win32_to_posix_path_list_buf_size(src)); \
+cygwin_win32_to_posix_path_list(src, dst)
+#define CYGWIN_WIN32_PATH(src, dst) \
+dst = alloca (cygwin_posix_to_win32_path_list_buf_size(src)); \
+cygwin_posix_to_win32_path_list(src, dst)