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/* Definitions file for GNU Emacs running on AT&T's System V Release 4
Copyright (C) 1987, 1990 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. */
/* 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. */
#include "usg5-3.h"
#define USG5_4
/* We do have multiple jobs. Handle ^Z. */
#undef NOMULTIPLEJOBS
#define LIBS_SYSTEM -lsocket -lnsl -lelf
#define ORDINARY_LINK
#if 0
#ifdef ORDINARY_LINK
#define LIB_STANDARD -lc /usr/ucblib/libucb.a
#else
#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/ucblib/libucb.a /usr/ccs/lib/crtn.o
#endif
#else
#ifdef ORDINARY_LINK
#define LIB_STANDARD
#else
#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
#endif
#endif
/* there are no -lg libraries on this system, and no libPW */
#define LIBS_DEBUG
/* This is turned off because nobody actually uses LIBS_STANDARD (Nov 1995).
That name is a typo. The next step is to delete this entirely. */
/* #define LIBS_STANDARD -lc */
/* No <sioctl.h> */
#define NO_SIOCTL_H
/* 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>
#undef 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.
*/
#ifndef NSIG
#define NSIG 32
#endif
/* 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
#undef BROKEN_TIOCGWINSZ
#undef BROKEN_TIOCGETC
/* 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. */
#undef FIRST_PTY_LETTER
#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) \
{ close (fd); return -1; } \
sigrelse (SIGCLD); \
if (unlockpt (fd) == -1) \
{ close (fd); return -1; } \
if (!(ptyname = ptsname (fd))) \
{ 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);
/* Undo the SVr3 X11 library definition */
#undef LIB_X11_LIB
/* The definition of this in s-usg5-3.h is not needed in 5.4. */
/* liblnsl_s should never be used. The _s suffix implies a shared
library, as opposed to a DLL. Share libraries were used in SVR3, and are
available only in order to allow SVR3 binaries to run. They should not be
linked in to new binaries. -- caraway!pinkas@caraway.intel.com. */
#undef LIBX10_SYSTEM
#undef LIBX11_SYSTEM
/* 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
#define bcopy(src,dst,n) memmove (dst,src,n)
#define bcmp(src,dst,n) memcmp (src,dst,n)
#define bzero(s,n) memset (s,0,n)
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