[bpt/emacs.git] / src / s / usg5-0.h

/* Definitions file for GNU Emacs running on AT&T's System V.0
   Copyright (C) 1985, 1986 Free Software Foundation, Inc.

This file is part of GNU Emacs.

GNU Emacs is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.

GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING.  If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */


/*
 *	Define symbols to identify the version of Unix this is.
 *	Define all the symbols that apply correctly.
 */

#define USG				/* System III, System V, etc */

#define USG5
#define	USG5_0

/* SYSTEM_TYPE should indicate the kind of system you are using.
 It sets the Lisp variable system-type.  */

#define SYSTEM_TYPE "usg-unix-v"

/* nomultiplejobs should be defined if your system's shell
 does not have "job control" (the ability to stop a program,
 run some other program, then continue the first one).  */

#define NOMULTIPLEJOBS

/* Default is to set interrupt_input to 0: don't do input buffering within Emacs */

/* #define INTERRUPT_INPUT */

/* Letter to use in finding device name of first pty,
  if system supports pty's.  'p' means it is /dev/ptyp0  */

#define FIRST_PTY_LETTER 'p'

/*
 *	Define HAVE_TERMIO if the system provides sysV-style ioctls
 *	for terminal control.
 */

#define HAVE_TERMIO

/*
 *	Define HAVE_PTYS if the system supports pty devices.
 */

/* #define HAVE_PTYS */

/* Define HAVE_SOCKETS if system supports 4.2-compatible sockets.  */

/* #define HAVE_SOCKETS */

/*
 *	Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
 *      The 4.2 opendir, etc., library functions.
 */

#define NONSYSTEM_DIR_LIBRARY

/* Define this symbol if your system has the functions bcopy, etc. */

/* #define BSTRING */

/* subprocesses should be defined if you want to
 have code for asynchronous subprocesses
 (as used in M-x compile and M-x shell).
 This is supposed to work now on system V release 2.  */

#define subprocesses

/* If your system uses COFF (Common Object File Format) then define the
   preprocessor symbol "COFF". */

#define COFF

/* define MAIL_USE_FLOCK if the mailer uses flock
   to interlock access to /usr/spool/mail/$USER.
   The alternative is that a lock file named
   /usr/spool/mail/$USER.lock.  */

/* #define MAIL_USE_FLOCK */

/* Define CLASH_DETECTION if you want lock files to be written
   so that Emacs can tell instantly when you try to modify
   a file that someone else has modified in his Emacs.  */

/* #define CLASH_DETECTION */

/* Define SHORTNAMES if the C compiler can distinguish only
   short names.  It means that the stuff in ../shortnames
   must be run to convert the long names to short ones.  */

#define SHORTNAMES

/* We do NOT use the Berkeley (and usg5.2.2) interface to nlist.  */

/* #define NLIST_STRUCT */

/* The file containing the kernel's symbol table is called /unix.  */

#define KERNEL_FILE "/unix"

/* The symbol in the kernel where the load average is found
   is named avenrun.  */

#define LDAV_SYMBOL "avenrun"
\f
/* Special hacks needed to make Emacs run on this system.  */

/*
 *	Make the sigsetmask function go away.  Don't know what the
 *	ramifications of this are, but doesn't seem possible to
 *	emulate it properly anyway at this point.
 */

#define sigsetmask(mask)	/* Null expansion */

/* setjmp and longjmp can safely replace _setjmp and _longjmp,
   but they will run slower.  */

#define _setjmp setjmp
#define _longjmp longjmp

/* On USG systems the system calls are interruptible by signals
 that the user program has elected to catch.  Thus the system call
 must be retried in these cases.  To handle this without massive
 changes in the source code, we remap the standard system call names
 to names for our own functions in sysdep.c that do the system call
 with retries. */

#define read sys_read
#define open sys_open
#define write sys_write

#define INTERRUPTIBLE_OPEN
#define INTERRUPTIBLE_IO

/* On USG systems these have different names */

#define index strchr
#define rindex strrchr

/* USG systems tend to put everything declared static
   into the initialized data area, which becomes pure after dumping Emacs.
   Foil this.  Emacs carefully avoids static vars inside functions.  */

#define static

/* Compiler bug bites on many systems when default ADDR_CORRECT is used.  */

#define ADDR_CORRECT(x) (x)

/* Prevent -lg from being used for debugging.  Not implemented?  */

#define LIBS_DEBUG
Commit	Line	Data
9b71f02b JB	1	/* Definitions file for GNU Emacs running on AT&T's System V.0
	2	Copyright (C) 1985, 1986 Free Software Foundation, Inc.
	3
	4	This file is part of GNU Emacs.
	5
	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
17385adc	8	the Free Software Foundation; either version 2, or (at your option)
9b71f02b JB	9	any later version.
	10
	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.
	15
	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
3b7ad313 EN	18	the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
3b7ad313 EN	19	Boston, MA 02111-1307, USA. */
9b71f02b JB	20
	21
	22	/*
	23	* Define symbols to identify the version of Unix this is.
	24	* Define all the symbols that apply correctly.
	25	*/
	26
	27	#define USG /* System III, System V, etc */
	28
	29	#define USG5
	30	#define USG5_0
	31
	32	/* SYSTEM_TYPE should indicate the kind of system you are using.
	33	It sets the Lisp variable system-type. */
	34
	35	#define SYSTEM_TYPE "usg-unix-v"
	36
	37	/* nomultiplejobs should be defined if your system's shell
	38	does not have "job control" (the ability to stop a program,
	39	run some other program, then continue the first one). */
	40
	41	#define NOMULTIPLEJOBS
	42
	43	/* Default is to set interrupt_input to 0: don't do input buffering within Emacs */
	44
	45	/* #define INTERRUPT_INPUT */
	46
	47	/* Letter to use in finding device name of first pty,
	48	if system supports pty's. 'p' means it is /dev/ptyp0 */
	49
	50	#define FIRST_PTY_LETTER 'p'
	51
	52	/*
	53	* Define HAVE_TERMIO if the system provides sysV-style ioctls
	54	* for terminal control.
	55	*/
	56
	57	#define HAVE_TERMIO
	58
9b71f02b JB	59	/*
	60	* Define HAVE_PTYS if the system supports pty devices.
	61	*/
	62
	63	/* #define HAVE_PTYS */
	64
	65	/* Define HAVE_SOCKETS if system supports 4.2-compatible sockets. */
	66
	67	/* #define HAVE_SOCKETS */
	68
	69	/*
	70	* Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
	71	* The 4.2 opendir, etc., library functions.
	72	*/
	73
	74	#define NONSYSTEM_DIR_LIBRARY
	75
	76	/* Define this symbol if your system has the functions bcopy, etc. */
	77
	78	/* #define BSTRING */
	79
	80	/* subprocesses should be defined if you want to
	81	have code for asynchronous subprocesses
	82	(as used in M-x compile and M-x shell).
	83	This is supposed to work now on system V release 2. */
	84
	85	#define subprocesses
	86
	87	/* If your system uses COFF (Common Object File Format) then define the
	88	preprocessor symbol "COFF". */
	89
	90	#define COFF
	91
	92	/* define MAIL_USE_FLOCK if the mailer uses flock
	93	to interlock access to /usr/spool/mail/$USER.
	94	The alternative is that a lock file named
	95	/usr/spool/mail/$USER.lock. */
	96
	97	/* #define MAIL_USE_FLOCK */
	98
	99	/* Define CLASH_DETECTION if you want lock files to be written
	100	so that Emacs can tell instantly when you try to modify
	101	a file that someone else has modified in his Emacs. */
	102
	103	/* #define CLASH_DETECTION */
	104
	105	/* Define SHORTNAMES if the C compiler can distinguish only
	106	short names. It means that the stuff in ../shortnames
	107	must be run to convert the long names to short ones. */
	108
	109	#define SHORTNAMES
	110
	111	/* We do NOT use the Berkeley (and usg5.2.2) interface to nlist. */
	112
	113	/* #define NLIST_STRUCT */
	114
	115	/* The file containing the kernel's symbol table is called /unix. */
	116
	117	#define KERNEL_FILE "/unix"
	118
	119	/* The symbol in the kernel where the load average is found
	120	is named avenrun. */
	121
	122	#define LDAV_SYMBOL "avenrun"
123	\f
124	/* Special hacks needed to make Emacs run on this system. */
125
126	/*
127	* Make the sigsetmask function go away. Don't know what the
128	* ramifications of this are, but doesn't seem possible to
129	* emulate it properly anyway at this point.
130	*/
131
132	#define sigsetmask(mask) /* Null expansion */
133
134	/* setjmp and longjmp can safely replace _setjmp and _longjmp,
135	but they will run slower. */
136
137	#define _setjmp setjmp
138	#define _longjmp longjmp
139
eb8c3be9	140	/* On USG systems the system calls are interruptible by signals
9b71f02b JB	141	that the user program has elected to catch. Thus the system call
	142	must be retried in these cases. To handle this without massive
	143	changes in the source code, we remap the standard system call names
	144	to names for our own functions in sysdep.c that do the system call
	145	with retries. */
	146
	147	#define read sys_read
	148	#define open sys_open
	149	#define write sys_write
	150
	151	#define INTERRUPTIBLE_OPEN
	152	#define INTERRUPTIBLE_IO
	153
	154	/* On USG systems these have different names */
	155
	156	#define index strchr
	157	#define rindex strrchr
	158
	159	/* USG systems tend to put everything declared static
	160	into the initialized data area, which becomes pure after dumping Emacs.
	161	Foil this. Emacs carefully avoids static vars inside functions. */
	162
	163	#define static
	164
	165	/* Compiler bug bites on many systems when default ADDR_CORRECT is used. */
	166
	167	#define ADDR_CORRECT(x) (x)
	168
	169	/* Prevent -lg from being used for debugging. Not implemented? */
	170
	171	#define LIBS_DEBUG