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/* Definitions file for GNU Emacs running on AT&T's System V Release 4
Copyright (C) 1987, 1990, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
2006, 2007, 2008 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 3 of the License, 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. If not, see <http://www.gnu.org/licenses/>. */
/* This file written by James Van Artsdalen of Dell Computer Corporation.
* james@bigtex.cactus.org. Subsequently improved for Dell 2.2 by Eric
* S. Raymond <esr@snark.thyrsus.com>.
*/
/* Use the SysVr3 file for at least base configuration. */
#define USG /* System III, System V, etc */
#define USG5
#define USG5_4
/* SYSTEM_TYPE should indicate the kind of system you are using.
It sets the Lisp variable system-type. */
#define SYSTEM_TYPE "usg-unix-v"
/* Default is to set interrupt_input to 0: don't do input buffering within Emacs */
/* #define INTERRUPT_INPUT */
/*
* 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.
*/
/* Some versions of V.3 have this, but not all.
#define HAVE_PTYS
#define SYSV_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 SYSV_SYSTEM_DIR to use the V.3 getdents/readir
* library functions. Almost, but not quite the same as
* the 4.2 functions
*/
#define SYSV_SYSTEM_DIR
/* 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 */
/* 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"
/* Define this if system V IPC is available. */
#define HAVE_SYSVIPC
/* 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 these have different names */
#ifndef HAVE_INDEX
#define index strchr
#endif /* ! defined (HAVE_INDEX) */
#ifndef HAVE_RINDEX
#define rindex strrchr
#endif /* ! defined (HAVE_RINDEX) */
/* 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)
/* Use terminfo instead of termcap. */
#define TERMINFO
/* The docs for system V/386 suggest v.3 has sigpause,
so let's give it a try. */
#define HAVE_SYSV_SIGPAUSE
/* If we're using the System V X port, BSD bstring functions will be handy */
#ifdef HAVE_X_WINDOWS
#define BSTRING
#endif /* HAVE_X_WINDOWS */
/* Enable support for shared libraries in unexec. */
#define USG_SHARED_LIBRARIES
/* On USG systems signal handlers return void */
#define SIGTYPE void
#define START_FILES pre-crt0.o /usr/ccs/lib/crt1.o /usr/ccs/lib/crti.o /usr/ccs/lib/values-Xt.o
#define LIB_STANDARD -lc /usr/ccs/lib/crtn.o
/* there are no -lg libraries on this system, and no libPW */
#define LIBS_DEBUG
/* Undump with ELF */
#undef COFF
#define UNEXEC unexelf.o
/* <sys/stat.h> *defines* stat(2) as a static function. If "static"
* is blank, then many files will have a public definition for stat(2).
*/
#undef static
/* Get FIONREAD from <sys/filio.h>. Get <sys/ttold.h> to get struct
* tchars. But get <termio.h> first to make sure ttold.h doesn't
* interfere. And don't try to use SIGIO yet.
*/
#ifndef NOT_C_CODE
#include <sys/wait.h>
#endif
#ifdef emacs
#ifndef NO_FILIO_H
#include <sys/filio.h>
#endif
#include <termio.h>
#include <sys/ttold.h>
#include <signal.h>
#include <sys/stream.h>
#include <sys/stropts.h>
#include <sys/termios.h>
#define BROKEN_SIGIO
#endif
/* Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
* instead, there's a system variable _sys_nsig. Unfortunately, we need the
* constant to dimension an array. So wire in the appropriate value here.
*/
#define NSIG_MINIMUM 32
/* We need bss_end from emacs.c for undumping */
#ifndef USG_SHARED_LIBRARIES
#define USG_SHARED_LIBRARIES
#endif
/* We can support this */
#define CLASH_DETECTION
#define HAVE_PTYS
#define HAVE_TERMIOS
/* It is possible to receive SIGCHLD when there are no children
waiting, because a previous waitsys(2) cleaned up the carcass of child
without clearing the SIGCHLD pending info. So, use a non-blocking
wait3 instead, which maps to waitpid(2) in SysVr4. */
#define HAVE_WAIT_HEADER
#define WAITTYPE int
#define wait3(status, options, rusage) \
waitpid ((pid_t) -1, (status), (options))
#define WRETCODE(w) (w >> 8)
/* TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
subprocesses the usual way. But TIOCSIGNAL does work for PTYs, and
this is all we need. */
#define TIOCSIGSEND TIOCSIGNAL
/* This change means that we don't loop through allocate_pty too many
times in the (rare) event of a failure. */
#define FIRST_PTY_LETTER 'z'
/* This sets the name of the master side of the PTY. */
#define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptmx");
/* This sets the name of the slave side of the PTY. On SysVr4,
grantpt(3) forks a subprocess, so keep sigchld_handler() from
intercepting that death. If any child but grantpt's should die
within, it should be caught after sigrelse(2). */
#define PTY_TTY_NAME_SPRINTF \
{ \
char *ptsname (), *ptyname; \
\
sighold (SIGCLD); \
if (grantpt (fd) == -1) \
{ emacs_close (fd); return -1; } \
sigrelse (SIGCLD); \
if (unlockpt (fd) == -1) \
{ emacs_close (fd); return -1; } \
if (!(ptyname = ptsname (fd))) \
{ emacs_close (fd); return -1; } \
strncpy (pty_name, ptyname, sizeof (pty_name)); \
pty_name[sizeof (pty_name) - 1] = 0; \
}
/* Push various streams modules onto a PTY channel. */
#define SETUP_SLAVE_PTY \
if (ioctl (xforkin, I_PUSH, "ptem") == -1) \
fatal ("ioctl I_PUSH ptem", errno); \
if (ioctl (xforkin, I_PUSH, "ldterm") == -1) \
fatal ("ioctl I_PUSH ldterm", errno); \
if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) \
fatal ("ioctl I_PUSH ttcompat", errno);
/* Tell x11term.c and keyboard.c we have the system V streams feature. */
#define SYSV_STREAMS
/* This definition was suggested for next release.
So give it a try. */
#define HAVE_SOCKETS
/* Markus Weiand <weiand@khof.com> says this is needed for Motif on
SINIX. */
#define LIBS_SYSTEM -lgen
/* arch-tag: 1a0ed909-5faa-434b-b7c3-9d86c63d53a6
(do not change this comment) */
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