(read-passwd): Clear command history after each
[emacs.git] / src / s / usg5-2-2.h
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1 /* Definitions file for GNU Emacs running on AT&T's System V Release 2.2
2 Copyright (C) 1985, 1986, 1999 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)
9 any later version.
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 GNU Emacs; 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. */
23 * Define symbols to identify the version of Unix this is.
24 * Define all the symbols that apply correctly.
27 #define USG /* System III, System V, etc */
29 #define USG5
31 /* SYSTEM_TYPE should indicate the kind of system you are using.
32 It sets the Lisp variable system-type. */
34 #define SYSTEM_TYPE "usg-unix-v"
36 /* nomultiplejobs should be defined if your system's shell
37 does not have "job control" (the ability to stop a program,
38 run some other program, then continue the first one). */
40 #define NOMULTIPLEJOBS
42 /* Default is to set interrupt_input to 0: don't do input buffering within Emacs */
44 /* #define INTERRUPT_INPUT */
46 /* Letter to use in finding device name of first pty,
47 if system supports pty's. 'p' means it is /dev/ptyp0 */
49 #define FIRST_PTY_LETTER 'p'
52 * Define HAVE_TERMIO if the system provides sysV-style ioctls
53 * for terminal control.
56 #define HAVE_TERMIO
59 * Define HAVE_PTYS if the system supports pty devices.
62 /* #define HAVE_PTYS */
64 /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets. */
66 /* #define HAVE_SOCKETS */
69 * Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
70 * The 4.2 opendir, etc., library functions.
73 #define NONSYSTEM_DIR_LIBRARY
75 /* Define this symbol if your system has the functions bcopy, etc. */
77 /* #define BSTRING */
79 /* subprocesses should be defined if you want to
80 have code for asynchronous subprocesses
81 (as used in M-x compile and M-x shell).
82 This is supposed to work now on system V release 2. */
84 #define subprocesses
86 /* If your system uses COFF (Common Object File Format) then define the
87 preprocessor symbol "COFF". */
89 #define COFF
91 /* define MAIL_USE_FLOCK if the mailer uses flock
92 to interlock access to /usr/spool/mail/$USER.
93 The alternative is that a lock file named
94 /usr/spool/mail/$USER.lock. */
96 /* #define MAIL_USE_FLOCK */
98 /* Define CLASH_DETECTION if you want lock files to be written
99 so that Emacs can tell instantly when you try to modify
100 a file that someone else has modified in his Emacs. */
102 /* #define CLASH_DETECTION */
104 /* Define SHORTNAMES if the C compiler can distinguish only
105 short names. It means that the stuff in ../shortnames
106 must be run to convert the long names to short ones. */
108 /* #define SHORTNAMES */
110 /* The file containing the kernel's symbol table is called /unix. */
112 #define KERNEL_FILE "/unix"
114 /* The symbol in the kernel where the load average is found
115 is named avenrun. */
117 #define LDAV_SYMBOL "avenrun"
119 /* Special hacks needed to make Emacs run on this system. */
122 * Make the sigsetmask function go away. Don't know what the
123 * ramifications of this are, but doesn't seem possible to
124 * emulate it properly anyway at this point.
127 #define sigsetmask(mask) /* Null expansion */
129 /* setjmp and longjmp can safely replace _setjmp and _longjmp,
130 but they will run slower. */
132 #define _setjmp setjmp
133 #define _longjmp longjmp
135 /* On USG systems these have different names */
137 #define index strchr
138 #define rindex strrchr
140 /* USG systems tend to put everything declared static
141 into the initialized data area, which becomes pure after dumping Emacs.
142 Foil this. Emacs carefully avoids static vars inside functions. */
144 #define static
146 /* Compiler bug bites on many systems when default ADDR_CORRECT is used. */
148 #define ADDR_CORRECT(x) (x)
150 /* Prevent -lg from being used for debugging. Not implemented? */
152 #define LIBS_DEBUG
154 /* Use terminfo instead of termcap. */
156 #define TERMINFO