#include "usg5-4.h"

#define IRIX5

#undef sigsetmask  /* use sys_sigsetmask */
#undef _longjmp /* use system versions, not conservative aliases */
#undef _setjmp 

#define SETPGRP_RELEASES_CTTY

#ifdef LIBS_SYSTEM
#undef LIBS_SYSTEM
#endif

#ifdef LIB_STANDARD
#undef LIB_STANDARD
#endif

#ifdef SYSTEM_TYPE
#undef SYSTEM_TYPE
#endif
#define SYSTEM_TYPE "irix"

#ifdef SETUP_SLAVE_PTY
#undef SETUP_SLAVE_PTY
#endif

/* thomas@mathematik.uni-bremen.de says this is needed.  */
/* Make process_send_signal work by "typing" a signal character on the pty.  */
#define SIGNALS_VIA_CHARACTERS

/* Define HAVE_ALLOCA to say that the system provides a properly
   working alloca function and it should be used. */
#define HAVE_ALLOCA
#undef C_ALLOCA

#ifndef NOT_C_CODE
#ifndef __GNUC__
#include <alloca.h>
#endif
#endif

/* SGI has all the fancy wait stuff, but we can't include sys/wait.h
   because it defines BIG_ENDIAN and LITTLE_ENDIAN (ugh!.)  Instead
   we'll just define WNOHANG right here.
   (An implicit decl is good enough for wait3.)  */

/* #define WNOHANG		0x1 */

/* No need to use sprintf to get the tty name--we get that from _getpty.  */
#ifdef PTY_TTY_NAME_SPRINTF
#undef PTY_TTY_NAME_SPRINTF
#endif
#define PTY_TTY_NAME_SPRINTF
/* No need to get the pty name at all.  */
#ifdef PTY_NAME_SPRINTF
#undef PTY_NAME_SPRINTF
#endif
#define PTY_NAME_SPRINTF
#ifdef emacs
char *_getpty();
#endif
/* We need only try once to open a pty.  */
#define PTY_ITERATION
/* Here is how to do it.  */
#define PTY_OPEN					    \
{							    \
  struct sigaction ocstat, cstat;			    \
  char * name;						    \
  sigemptyset(&cstat.sa_mask);				    \
  cstat.sa_handler = SIG_DFL;				    \
  cstat.sa_flags = 0;					    \
  sigaction(SIGCLD, &cstat, &ocstat);			    \
  name = _getpty (&fd, O_RDWR | O_NDELAY, 0600, 0);	    \
  sigaction(SIGCLD, &ocstat, (struct sigaction *)0);	    \
  if (name == 0)					    \
    return -1;						    \
  if (fd < 0)						    \
    return -1;						    \
  if (fstat (fd, &stb) < 0)				    \
    return -1;						    \
  strcpy (pty_name, name);				    \
}

/* Since we use POSIX constructs in PTY_OPEN, we must force POSIX
   throughout. */
#define POSIX_SIGNALS  

/* Info from simon@lia.di.epfl.ch (Simon Leinen) suggests this is needed.  */
#define GETPGRP_NO_ARG

/* Ulimit(UL_GMEMLIM) is busted...  */
#define ULIMIT_BREAK_VALUE 0x14000000

/* Tell process_send_signal to use VSUSP instead of VSWTCH.  */
#define PREFER_VSUSP

/* 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

/* use K&R C */
#if 0
#ifndef __GNUC__
#define C_SWITCH_SYSTEM -cckr
#endif
#endif

/* -g does not work on Irix, and since gcc warns if you use it,
   turn off the warning.  */
#ifdef __GNUC__
#define C_DEBUG_SWITCH
#endif

/* Prevent the variable ospeed from being defined by -lcurses
   because it defines it with too few bytes.  */
#define ospeed ospeed_

#define NARROWPROTO 1

