Commit | Line | Data |
---|---|---|
20c428fd JB |
1 | /* Template for system description header files. |
2 | This file describes the parameters that system description files | |
3 | should define or not. | |
d4327fec | 4 | Copyright (C) 1985, 1986, 1992 Free Software Foundation, Inc. |
20c428fd JB |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
8 | GNU Emacs is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
d4327fec | 10 | the Free Software Foundation; either version 2, or (at your option) |
20c428fd JB |
11 | any later version. |
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 | |
19 | along with GNU Emacs; see the file COPYING. If not, write to | |
20 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
21 | ||
22 | ||
23 | /* | |
24 | * Define symbols to identify the version of Unix this is. | |
25 | * Define all the symbols that apply correctly. | |
26 | */ | |
27 | ||
28 | /* #define UNIPLUS */ | |
29 | /* #define USG5 */ | |
30 | /* #define USG */ | |
31 | /* #define HPUX */ | |
32 | /* #define UMAX */ | |
33 | /* #define BSD4_1 */ | |
34 | /* #define BSD4_2 */ | |
35 | /* #define BSD4_3 */ | |
36 | /* #define BSD */ | |
37 | /* #define VMS */ | |
38 | ||
39 | /* SYSTEM_TYPE should indicate the kind of system you are using. | |
40 | It sets the Lisp variable system-type. */ | |
41 | ||
42 | #define SYSTEM_TYPE "berkeley-unix" | |
43 | ||
44 | /* NOMULTIPLEJOBS should be defined if your system's shell | |
45 | does not have "job control" (the ability to stop a program, | |
46 | run some other program, then continue the first one). */ | |
47 | ||
48 | /* #define NOMULTIPLEJOBS */ | |
49 | ||
50 | /* Emacs can read input using SIGIO and buffering characters itself, | |
51 | or using CBREAK mode and making C-g cause SIGINT. | |
52 | The choice is controlled by the variable interrupt_input. | |
32de6484 | 53 | |
20c428fd JB |
54 | Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO) |
55 | ||
32de6484 JB |
56 | Emacs uses the presence or absence of the SIGIO macro to indicate |
57 | whether or not signal-driven I/O is possible. It uses | |
58 | INTERRUPT_INPUT to decide whether to use it by default. | |
59 | ||
20c428fd | 60 | SIGIO can be used only on systems that implement it (4.2 and 4.3). |
eb8c3be9 | 61 | CBREAK mode has two disadvantages |
20c428fd JB |
62 | 1) At least in 4.2, it is impossible to handle the Meta key properly. |
63 | I hear that in system V this problem does not exist. | |
64 | 2) Control-G causes output to be discarded. | |
65 | I do not know whether this can be fixed in system V. | |
66 | ||
67 | Another method of doing input is planned but not implemented. | |
68 | It would have Emacs fork off a separate process | |
69 | to read the input and send it to the true Emacs process | |
32de6484 | 70 | through a pipe. */ |
20c428fd JB |
71 | |
72 | #define INTERRUPT_INPUT | |
73 | ||
74 | /* Letter to use in finding device name of first pty, | |
75 | if system supports pty's. 'a' means it is /dev/ptya0 */ | |
76 | ||
77 | #define FIRST_PTY_LETTER 'a' | |
78 | ||
d4327fec JB |
79 | /* |
80 | * Define HAVE_TERMIOS if the system provides POSIX-style | |
81 | * functions and macros for terminal control. | |
161aa2f8 | 82 | * |
b350a838 JB |
83 | * Define HAVE_TERMIO if the system provides sysV-style ioctls |
84 | * for terminal control. | |
161aa2f8 | 85 | * |
eb8c3be9 | 86 | * Do not define both. HAVE_TERMIOS is preferred, if it is |
161aa2f8 | 87 | * supported on your system. |
b350a838 JB |
88 | */ |
89 | ||
161aa2f8 JB |
90 | #define HAVE_TERMIOS |
91 | /* #define HAVE_TERMIO */ | |
b350a838 | 92 | |
20c428fd JB |
93 | /* |
94 | * Define HAVE_TIMEVAL if the system supports the BSD style clock values. | |
95 | * Look in <sys/time.h> for a timeval structure. | |
96 | */ | |
97 | ||
98 | #define HAVE_TIMEVAL | |
99 | ||
100 | /* | |
101 | * Define HAVE_SELECT if the system supports the `select' system call. | |
102 | */ | |
103 | ||
104 | /* #define HAVE_SELECT */ | |
105 | ||
106 | /* | |
107 | * Define HAVE_PTYS if the system supports pty devices. | |
108 | */ | |
109 | ||
110 | #define HAVE_PTYS | |
111 | ||
112 | /* | |
113 | * Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate | |
114 | * The 4.2 opendir, etc., library functions. | |
115 | */ | |
116 | ||
117 | #define NONSYSTEM_DIR_LIBRARY | |
118 | ||
119 | /* Define this symbol if your system has the functions bcopy, etc. */ | |
120 | ||
121 | #define BSTRING | |
122 | ||
123 | /* subprocesses should be defined if you want to | |
124 | have code for asynchronous subprocesses | |
125 | (as used in M-x compile and M-x shell). | |
126 | This is generally OS dependent, and not supported | |
127 | under most USG systems. */ | |
128 | ||
129 | #define subprocesses | |
130 | ||
131 | /* If your system uses COFF (Common Object File Format) then define the | |
132 | preprocessor symbol "COFF". */ | |
133 | ||
134 | /* #define COFF */ | |
135 | ||
136 | /* define MAIL_USE_FLOCK if the mailer uses flock | |
137 | to interlock access to /usr/spool/mail/$USER. | |
138 | The alternative is that a lock file named | |
139 | /usr/spool/mail/$USER.lock. */ | |
140 | ||
141 | #define MAIL_USE_FLOCK | |
142 | ||
143 | /* Define CLASH_DETECTION if you want lock files to be written | |
144 | so that Emacs can tell instantly when you try to modify | |
145 | a file that someone else has modified in his Emacs. */ | |
146 | ||
147 | #define CLASH_DETECTION | |
148 | ||
14e76af9 JB |
149 | /* Define this if your operating system declares signal handlers to |
150 | have a type other than the usual. `The usual' is `void' for ANSI C | |
151 | systems (i.e. when the __STDC__ macro is defined), and `int' for | |
152 | pre-ANSI systems. If you're using GCC on an older system, __STDC__ | |
153 | will be defined, but the system's include files will still say that | |
154 | signal returns int or whatever; in situations like that, define | |
155 | this to be what the system's include files want. */ | |
156 | /* #define SIGTYPE int */ | |
157 | ||
d4198db9 JB |
158 | /* If the character used to separate elements of the executable path |
159 | is not ':', #define this to be the appropriate character constant. */ | |
160 | /* #define SEPCHAR ':' */ | |
161 | ||
f5070950 JB |
162 | /* ============================================================ */ |
163 | ||
164 | /* Here, add any special hacks needed | |
20c428fd JB |
165 | to make Emacs work on this system. For example, |
166 | you might define certain system call names that don't | |
167 | exist on your system, or that do different things on | |
168 | your system and must be used only through an encapsulation | |
169 | (Which you should place, by convention, in sysdep.c). */ | |
f5070950 | 170 | |
20c428fd JB |
171 | /* Some compilers tend to put everything declared static |
172 | into the initialized data area, which becomes pure after dumping Emacs. | |
173 | On these systems, you must #define static as nothing to foil this. | |
174 | Note that emacs carefully avoids static vars inside functions. */ | |
175 | ||
176 | /* #define static */ | |
00b1a5fb | 177 | |
f5070950 | 178 | /* ============================================================ */ |
00b1a5fb JB |
179 | |
180 | /* After adding support for a new system, modify the large case | |
181 | statement in the `configure' script to recognize reasonable | |
182 | configuration names, and add a description of the system to | |
183 | `etc/MACHINES'. | |
184 | ||
185 | If you've just fixed a problem in an existing configuration file, | |
186 | you should also check `etc/MACHINES' to make sure its descriptions | |
187 | of known problems in that configuration should be updated. */ |