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4b158629 | 1 | /* System description header file for Cygwin. |
e05aebe9 GM |
2 | |
3 | Copyright (C) 1985, 1986, 1992, 1999, 2002, 2003, 2004, 2005, 2006, | |
c1d0dcfd | 4 | 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
2454c12d JB |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
4b158629 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
2454c12d | 9 | it under the terms of the GNU General Public License as published by |
4b158629 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
2454c12d JB |
12 | |
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
4b158629 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
2454c12d JB |
20 | |
21 | /* SYSTEM_TYPE should indicate the kind of system you are using. | |
c1d0dcfd | 22 | It sets the Lisp variable system-type. */ |
2454c12d JB |
23 | #define SYSTEM_TYPE "cygwin" |
24 | ||
25 | /* Emacs can read input using SIGIO and buffering characters itself, | |
26 | or using CBREAK mode and making C-g cause SIGINT. | |
27 | The choice is controlled by the variable interrupt_input. | |
28 | ||
29 | Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO) | |
30 | ||
31 | Emacs uses the presence or absence of the SIGIO and BROKEN_SIGIO macros | |
32 | to indicate whether or not signal-driven I/O is possible. It uses | |
33 | INTERRUPT_INPUT to decide whether to use it by default. | |
34 | ||
35 | SIGIO can be used only on systems that implement it (4.2 and 4.3). | |
36 | CBREAK mode has two disadvantages | |
37 | 1) At least in 4.2, it is impossible to handle the Meta key properly. | |
38 | I hear that in system V this problem does not exist. | |
39 | 2) Control-G causes output to be discarded. | |
40 | I do not know whether this can be fixed in system V. | |
41 | ||
42 | Another method of doing input is planned but not implemented. | |
43 | It would have Emacs fork off a separate process | |
44 | to read the input and send it to the true Emacs process | |
45 | through a pipe. */ | |
2454c12d JB |
46 | #undef INTERRUPT_INPUT |
47 | ||
e05aebe9 GM |
48 | /* Define HAVE_TERMIOS if the system provides POSIX-style |
49 | functions and macros for terminal control. | |
2454c12d | 50 | |
e05aebe9 GM |
51 | Define HAVE_TERMIO if the system provides sysV-style ioctls |
52 | for terminal control. | |
2454c12d | 53 | |
e05aebe9 GM |
54 | Do not define both. HAVE_TERMIOS is preferred, if it is |
55 | supported on your system. */ | |
56 | #define HAVE_TERMIOS | |
2454c12d | 57 | |
e05aebe9 | 58 | /* Define HAVE_PTYS if the system supports pty devices. */ |
2454c12d JB |
59 | #define HAVE_PTYS |
60 | #define PTY_ITERATION for (i = 0; i < 1; i++) /* ick */ | |
61 | #define PTY_NAME_SPRINTF /* none */ | |
62 | #define PTY_TTY_NAME_SPRINTF /* none */ | |
63 | #define PTY_OPEN \ | |
64 | do \ | |
65 | { \ | |
66 | int dummy; \ | |
67 | SIGMASKTYPE mask; \ | |
68 | mask = sigblock (sigmask (SIGCHLD)); \ | |
69 | if (-1 == openpty (&fd, &dummy, pty_name, 0, 0)) \ | |
70 | fd = -1; \ | |
71 | sigsetmask (mask); \ | |
72 | emacs_close (dummy); \ | |
73 | } \ | |
74 | while (0) | |
75 | ||
76 | /* Define this symbol if your system has the functions bcopy, etc. */ | |
2454c12d JB |
77 | #define BSTRING |
78 | ||
2454c12d JB |
79 | /* Define CLASH_DETECTION if you want lock files to be written |
80 | so that Emacs can tell instantly when you try to modify | |
81 | a file that someone else has modified in his Emacs. */ | |
2454c12d JB |
82 | #define CLASH_DETECTION |
83 | ||
84 | /* If the system's imake configuration file defines `NeedWidePrototypes' | |
85 | as `NO', we must define NARROWPROTO manually. Such a define is | |
177c0ea7 | 86 | generated in the Makefile generated by `xmkmf'. If we don't |
2454c12d JB |
87 | define NARROWPROTO, we will see the wrong function prototypes |
88 | for X functions taking float or double parameters. */ | |
2454c12d JB |
89 | #define NARROWPROTO 1 |
90 | ||
e05aebe9 | 91 | /* Used in various places to enable cygwin-specific code changes. */ |
2454c12d JB |
92 | #define CYGWIN 1 |
93 | ||
94 | #define PENDING_OUTPUT_COUNT(FILE) ((FILE)->_p - (FILE)->_bf._base) | |
2454c12d | 95 | #define SYSV_SYSTEM_DIR 1 |
451f03a0 | 96 | #define UNEXEC unexcw.o |
dd5a6279 | 97 | |
2454c12d | 98 | #define HAVE_SOCKETS |
2454c12d JB |
99 | |
100 | /* vfork() interacts badly with setsid(), causing ptys to fail to | |
101 | change their controlling terminal */ | |
102 | #define vfork fork | |
103 | ||
179cef48 SM |
104 | /* This should work (at least when compiling with gcc). But I have no way |
105 | or intention to verify or even test it. If you encounter a problem with | |
106 | it, feel free to change this setting, but please add a comment here about | |
107 | why it needed to be changed. */ | |
108 | #define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS | |
109 | ||
9b1a1e62 JR |
110 | /* Virtual addresses of pure and impure space can vary, as on Windows. */ |
111 | #define VIRT_ADDR_VARIES | |
112 | ||
a4ef73c8 CY |
113 | /* Emacs supplies its own malloc, but glib (part of Gtk+) calls |
114 | memalign and on Cygwin, that becomes the Cygwin-supplied memalign. | |
115 | As malloc is not the Cygwin malloc, the Cygwin memalign always | |
116 | returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */ | |
117 | #define G_SLICE_ALWAYS_MALLOC | |
118 | ||
ab5796a9 MB |
119 | /* arch-tag: 5ae7ba00-83b0-4ab3-806a-3e845779191b |
120 | (do not change this comment) */ |