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20c428fd JB |
1 | /* Template for system description header files. |
2 | This file describes the parameters that system description files | |
3 | should define or not. | |
4 | Copyright (C) 1985, 1986 Free Software Foundation, Inc. | |
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 | |
10 | the Free Software Foundation; either version 1, or (at your option) | |
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. | |
53 | Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO) | |
54 | ||
55 | SIGIO can be used only on systems that implement it (4.2 and 4.3). | |
56 | CBREAK mode has two disadvatages | |
57 | 1) At least in 4.2, it is impossible to handle the Meta key properly. | |
58 | I hear that in system V this problem does not exist. | |
59 | 2) Control-G causes output to be discarded. | |
60 | I do not know whether this can be fixed in system V. | |
61 | ||
62 | Another method of doing input is planned but not implemented. | |
63 | It would have Emacs fork off a separate process | |
64 | to read the input and send it to the true Emacs process | |
65 | through a pipe. | |
66 | */ | |
67 | ||
68 | #define INTERRUPT_INPUT | |
69 | ||
70 | /* Letter to use in finding device name of first pty, | |
71 | if system supports pty's. 'a' means it is /dev/ptya0 */ | |
72 | ||
73 | #define FIRST_PTY_LETTER 'a' | |
74 | ||
75 | /* | |
76 | * Define HAVE_TIMEVAL if the system supports the BSD style clock values. | |
77 | * Look in <sys/time.h> for a timeval structure. | |
78 | */ | |
79 | ||
80 | #define HAVE_TIMEVAL | |
81 | ||
82 | /* | |
83 | * Define HAVE_SELECT if the system supports the `select' system call. | |
84 | */ | |
85 | ||
86 | /* #define HAVE_SELECT */ | |
87 | ||
88 | /* | |
89 | * Define HAVE_PTYS if the system supports pty devices. | |
90 | */ | |
91 | ||
92 | #define HAVE_PTYS | |
93 | ||
94 | /* | |
95 | * Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate | |
96 | * The 4.2 opendir, etc., library functions. | |
97 | */ | |
98 | ||
99 | #define NONSYSTEM_DIR_LIBRARY | |
100 | ||
101 | /* Define this symbol if your system has the functions bcopy, etc. */ | |
102 | ||
103 | #define BSTRING | |
104 | ||
105 | /* subprocesses should be defined if you want to | |
106 | have code for asynchronous subprocesses | |
107 | (as used in M-x compile and M-x shell). | |
108 | This is generally OS dependent, and not supported | |
109 | under most USG systems. */ | |
110 | ||
111 | #define subprocesses | |
112 | ||
113 | /* If your system uses COFF (Common Object File Format) then define the | |
114 | preprocessor symbol "COFF". */ | |
115 | ||
116 | /* #define COFF */ | |
117 | ||
118 | /* define MAIL_USE_FLOCK if the mailer uses flock | |
119 | to interlock access to /usr/spool/mail/$USER. | |
120 | The alternative is that a lock file named | |
121 | /usr/spool/mail/$USER.lock. */ | |
122 | ||
123 | #define MAIL_USE_FLOCK | |
124 | ||
125 | /* Define CLASH_DETECTION if you want lock files to be written | |
126 | so that Emacs can tell instantly when you try to modify | |
127 | a file that someone else has modified in his Emacs. */ | |
128 | ||
129 | #define CLASH_DETECTION | |
130 | ||
14e76af9 JB |
131 | /* Define this if your operating system declares signal handlers to |
132 | have a type other than the usual. `The usual' is `void' for ANSI C | |
133 | systems (i.e. when the __STDC__ macro is defined), and `int' for | |
134 | pre-ANSI systems. If you're using GCC on an older system, __STDC__ | |
135 | will be defined, but the system's include files will still say that | |
136 | signal returns int or whatever; in situations like that, define | |
137 | this to be what the system's include files want. */ | |
138 | /* #define SIGTYPE int */ | |
139 | ||
20c428fd JB |
140 | /* Here, on a separate page, add any special hacks needed |
141 | to make Emacs work on this system. For example, | |
142 | you might define certain system call names that don't | |
143 | exist on your system, or that do different things on | |
144 | your system and must be used only through an encapsulation | |
145 | (Which you should place, by convention, in sysdep.c). */ | |
146 | \f | |
147 | /* Some compilers tend to put everything declared static | |
148 | into the initialized data area, which becomes pure after dumping Emacs. | |
149 | On these systems, you must #define static as nothing to foil this. | |
150 | Note that emacs carefully avoids static vars inside functions. */ | |
151 | ||
152 | /* #define static */ |