1 /* system description file for cygwin32.
2 Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
4 This file is part of GNU Emacs.
6 GNU Emacs is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Emacs is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with XEmacs; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 /* Building under cygwin
23 * The approach I have taken with this port is to use primarily the UNIX
24 * code base adding stuff that is MS-Windows specific. This works quite
25 * well, and is in keeping with my perception of the cygwin philosophy.
26 * Note that if you make changes to this file you do NOT want to define
27 * WINDOWSNT, I repeat - do not define this, it will break everything
28 * horribly. What does get defined is HAVE_MS_WINDOWS, but this is
29 * done by configure and only applies to the window system.
31 * When building make sure your HOME path is unix style - i.e. without
34 * once you have done this, configure and make.
36 * windows '95 - I haven't tested this under '95, it will probably
37 * build but I konw there are some limitations with cygwin under 95 so
38 * YMMV. I build with NT4 SP3.
40 * Andy Piper <andy@xemacs.org> 8/1/98
41 * http://www.xemacs.freeserve.co.uk/ */
43 /* cheesy way to determine cygwin version */
46 # ifdef HAVE_CYGWIN_VERSION_H
47 # include <cygwin/version.h>
50 # define CYGWIN_VERSION_DLL_MAJOR 19
51 # define CYGWIN_VERSION_DLL_MINOR 0
54 # define CYGWIN_VERSION_DLL_MAJOR 18
55 # define CYGWIN_VERSION_DLL_MINOR 0
56 # define BROKEN_CYGWIN
60 extern void cygwin32_win32_to_posix_path_list(const char*, char*);
61 extern int cygwin32_win32_to_posix_path_list_buf_size(const char*);
62 extern void cygwin32_posix_to_win32_path_list(const char*, char*);
63 extern int cygwin32_posix_to_win32_path_list_buf_size(const char*);
64 # if CYGWIN_VERSION_DLL_MAJOR < 20
69 extern int gettimeofday(struct timeval *tp, struct timezone *tzp);
70 extern int gethostname (char* name, int namelen);
71 extern char* mktemp(char *);
72 extern double logb(double);
74 extern int ioctl(int, int, ...);
76 extern int lstat(const char *path, struct stat *buf);
78 extern int readlink(const char *path, void *buf, unsigned int bufsiz);
79 extern int symlink(const char *name1, const char *name2);
81 extern int setitimer(int which, const struct itimerval *value,
82 struct itimerval *ovalue);
83 extern int utimes(char *file, struct timeval *tvp);
85 extern int srandom( unsigned seed);
91 #ifdef HAVE_MS_WINDOWS
100 #define C_SWITCH_SYSTEM -Wno-sign-compare -fno-caller-saves
101 #define LIBS_SYSTEM -lwinmm
102 #define WIN32_LEAN_AND_MEAN
104 #define TEXT_START -1
109 #define UNEXEC "unexcw.o"
111 #ifdef CYGWIN_VERSION_DLL_MAJOR
113 /* #### FIXME: although defining BROKEN_SIGIO is correct for proper ^G
114 behavior, bugs in cygwin mean that xemacs locks up frequently if
119 #define PROCESS_IO_BLOCKING
121 #define strnicmp strncasecmp
125 #define OBJECTS_SYSTEM ntplay.o
126 #define HAVE_NATIVE_SOUND
128 #undef MAIL_USE_SYSTEM_LOCK
131 /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
132 * group of arguments and treat it as an array of the arguments. */
136 /* Data type of load average, as read out of kmem. */
138 #define LOAD_AVE_TYPE long
140 /* Convert that into an integer that is 100 for a load average of 1.0 */
142 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
144 /* Define VIRT_ADDR_VARIES if the virtual addresses of
145 pure and impure space as loaded can vary, and even their
146 relative order cannot be relied on.
148 Otherwise Emacs assumes that text space precedes data space,
151 /* Text does precede data space, but this is never a safe assumption. */
152 #define VIRT_ADDR_VARIES
154 /* If you are compiling with a non-C calling convention but need to
155 declare vararg routines differently, put it here */
156 #define _VARARGS_ __cdecl
158 /* If you are providing a function to something that will call the
159 function back (like a signal handler and signal, or main) its calling
160 convention must be whatever standard the libraries expect */
161 #define _CALLBACK_ __cdecl
163 /* SYSTEM_TYPE should indicate the kind of system you are using.
164 It sets the Lisp variable system-type. */
166 #define SYSTEM_TYPE "cygwin32"
170 /* define MAIL_USE_FLOCK if the mailer uses flock
171 to interlock access to /usr/spool/mail/$USER.
172 The alternative is that a lock file named
173 /usr/spool/mail/$USER.lock. */
175 /* If the character used to separate elements of the executable path
176 is not ':', #define this to be the appropriate character constant. */
179 /* ============================================================ */
181 /* Here, add any special hacks needed
182 to make Emacs work on this system. For example,
183 you might define certain system call names that don't
184 exist on your system, or that do different things on
185 your system and must be used only through an encapsulation
186 (Which you should place, by convention, in sysdep.c). */
188 /* Define this to be the separator between path elements */
189 /* #define DIRECTORY_SEP XINT (Vdirectory_sep_char) */
191 /* Define this to be the separator between devices and paths */
192 #define DEVICE_SEP ':'
194 /* We'll support either convention on NT. */
195 #define IS_DIRECTORY_SEP(_c_) ((_c_) == '/' || (_c_) == '\\')
196 #define IS_ANY_SEP(_c_) (IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP (_c_))
197 #define EXEC_SUFFIXES ".exe:.com:.bat:.cmd:"
199 /* We need a little extra space, see ../../lisp/loadup.el */
200 #define SYSTEM_PURESIZE_EXTRA 15000
202 #define CYGWIN_CONV_PATH(src, dst) \
203 dst = alloca (cygwin32_win32_to_posix_path_list_buf_size(src)); \
204 cygwin32_win32_to_posix_path_list(src, dst)
205 #define CYGWIN_WIN32_PATH(src, dst) \
206 dst = alloca (cygwin32_posix_to_win32_path_list_buf_size(src)); \
207 cygwin32_posix_to_win32_path_list(src, dst)
213 #define FIRST_PTY_LETTER 'z'
215 /* Pseudo-terminal support under SVR4 only loops to deal with errors. */
217 #define PTY_ITERATION for (i = 0, c = 0; i < 1; i++)
219 /* This sets the name of the master side of the PTY. */
221 #define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptmx");
223 /* This sets the name of the slave side of the PTY. On SysVr4,
224 grantpt(3) forks a subprocess, so keep sigchld_handler() from
225 intercepting that death. If any child but grantpt's should die
226 within, it should be caught after EMACS_UNBLOCK_SIGNAL. */
229 fd = open (pty_name, O_RDWR | O_NONBLOCK | OPEN_BINARY, 0)
231 #define PTY_TTY_NAME_SPRINTF \
233 extern char* ptsname(int); \
236 if (!(ptyname = ptsname (fd))) \
237 { close (fd); return -1; } \
238 strncpy (pty_name, ptyname, sizeof (pty_name)); \
239 pty_name[sizeof (pty_name) - 1] = 0; \
242 /* ============================================================ */