code.delx.au - gnu-emacs/blob - src/s/irix4-0.h

   1 /* Definitions file for GNU Emacs running on Silicon Graphics Irix system 4.0
   2
   3    Copyright (C) 1999, 2001, 2002, 2003, 2004, 2005, 2006,
   4                  2007  Free Software Foundation, Inc.
   5
   6 This file is part of GNU Emacs.
   7
   8 GNU Emacs is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 3, or (at your option)
  11 any later version.
  12
  13 GNU Emacs is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GNU Emacs; see the file COPYING.  If not, write to
  20 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  21 Boston, MA 02110-1301, USA.  */
  22
  23
  24 #include "irix3-3.h"
  25
  26 #define USG5_3
  27 #define IRIX4
  28 /* XPointer is not defined in the older X headers  -- JPff@maths.bath.ac.uk */
  29 #define XPointer caddr_t
  30
  31 #undef NEED_SIOCTL
  32
  33 /* Include unistd.h, even though we don't define POSIX.  */
  34 #define NEED_UNISTD_H
  35
  36 /* Make process_send_signal work by "typing" a signal character on the pty.  */
  37 #define SIGNALS_VIA_CHARACTERS
  38
  39 #ifndef __GNUC__
  40 /* use K&R C */
  41 /* We need to increase the expression tree space with -Wf,-XNh
  42    (ghazi@caip.rutgers.edu 7/8/97.)
  43 */
  44 #define C_SWITCH_SYSTEM -cckr -Wf,-XNh4000
  45 #endif
  46
  47 /* SGI has all the fancy wait stuff, but we can't include sys/wait.h
  48    because it defines BIG_ENDIAN and LITTLE_ENDIAN (ugh!.)  Instead
  49    we'll just define WNOHANG right here.
  50    (An implicit decl is good enough for wait3.)  */
  51
  52 #define WNOHANG         0x1
  53
  54 /* No need to use sprintf to get the tty name--we get that from _getpty.  */
  55 #undef PTY_TTY_NAME_SPRINTF
  56 #define PTY_TTY_NAME_SPRINTF
  57 /* No need to get the pty name at all.  */
  58 #define PTY_NAME_SPRINTF
  59 /* We need only try once to open a pty.  */
  60 #define PTY_ITERATION
  61 /* Here is how to do it.  */
  62 /* It is necessary to prevent SIGCHLD signals within _getpty.
  63    So we block them. */
  64 #define PTY_OPEN                                                \
  65 {                                                               \
  66   int mask = sigblock (sigmask (SIGCHLD));                      \
  67   char *name = _getpty (&fd, O_RDWR | O_NDELAY, 0600, 0);       \
  68   sigsetmask(mask);                                             \
  69   if (name == 0)                                                \
  70     return -1;                                                  \
  71   if (fd < 0)                                                   \
  72     return -1;                                                  \
  73   if (fstat (fd, &stb) < 0)                                     \
  74     return -1;                                                  \
  75   strcpy (pty_name, name);                                      \
  76 }
  77
  78 /* arch-tag: cfd7e200-a4dc-4f67-9a32-4184c10b0c57
  79    (do not change this comment) */