src/s/irix6-5.h

   1 /* Definitions file for GNU Emacs running on Silicon Graphics Irix system 6.5.
   2
   3 Copyright (C) 1999-2012  Free Software Foundation, Inc.
   4
   5 This file is part of GNU Emacs.
   6
   7 GNU Emacs is free software: you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation, either version 3 of the License, or
  10 (at your option) any later version.
  11
  12 GNU Emacs is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20
  21 #define IRIX6_5                 /* used in m/iris4d */
  22 #include "usg5-4-common.h"
  23
  24 #undef _longjmp /* use system versions, not conservative aliases */
  25 #undef _setjmp
  26
  27 #define SETPGRP_RELEASES_CTTY
  28
  29 #undef SETUP_SLAVE_PTY
  30
  31 /* Letter to use in finding device name of first pty,
  32    if system supports pty's.  'a' means it is /dev/ptya0  */
  33 #undef FIRST_PTY_LETTER
  34 #define FIRST_PTY_LETTER 'q'
  35
  36 /* No need to use sprintf to get the tty name--we get that from _getpty.  */
  37 #define PTY_TTY_NAME_SPRINTF
  38 /* No need to get the pty name at all.  */
  39 #undef PTY_NAME_SPRINTF
  40 #define PTY_NAME_SPRINTF
  41 #ifdef emacs
  42 char *_getpty();
  43 #endif
  44 /* We need only try once to open a pty.  */
  45 #define PTY_ITERATION
  46 /* Here is how to do it.  */
  47 #define PTY_OPEN                                            \
  48 {                                                           \
  49   struct sigaction ocstat, cstat;                           \
  50   struct stat stb;                                          \
  51   char * name;                                              \
  52   sigemptyset(&cstat.sa_mask);                              \
  53   cstat.sa_handler = SIG_DFL;                               \
  54   cstat.sa_flags = 0;                                       \
  55   sigaction(SIGCLD, &cstat, &ocstat);                       \
  56   name = _getpty (&fd, O_RDWR | O_NDELAY, 0600, 0);         \
  57   sigaction(SIGCLD, &ocstat, (struct sigaction *)0);        \
  58   if (name == 0)                                            \
  59     return -1;                                              \
  60   if (fd < 0)                                               \
  61     return -1;                                              \
  62   if (fstat (fd, &stb) < 0)                                 \
  63     return -1;                                              \
  64   strcpy (pty_name, name);                                  \
  65 }
  66
  67 /* Ulimit(UL_GMEMLIM) is busted...  */
  68 #define ULIMIT_BREAK_VALUE 0x14000000
  69
  70 /* Tell process_send_signal to use VSUSP instead of VSWTCH.  */
  71 #define PREFER_VSUSP
  72
  73 #define NARROWPROTO 1
  74
  75 #undef SA_RESTART     /* not the same as defining BROKEN_SA_RESTART */
  76
  77 #undef TIOCSIGSEND              /* defined in usg5-4-common.h */
  78
  79 /* Tested on Irix 6.5.  SCM worked on earlier versions.  */
  80 #define GC_SETJMP_WORKS 1