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

   1 #include "irix3-3.h"
   2
   3 #define USG5_3
   4 #define IRIX4
   5
   6 #define HAVE_ALLOCA
   7 #ifndef NOT_C_CODE
   8 #include <alloca.h>
   9 #endif
  10
  11 #undef NEED_SIOCTL
  12
  13 /* Include unistd.h, even though we don't define POSIX.  */
  14 #define NEED_UNISTD_H
  15
  16 /* Make process_send_signal work by "typing" a signal character on the pty.  */
  17 #define SIGNALS_VIA_CHARACTERS
  18
  19 #ifndef __GNUC__
  20 /* use K&R C */
  21 /* We need to increase the expression tree space with -Wf,-XNh
  22    (ghazi@caip.rutgers.edu 7/8/97.)
  23 */
  24 #define C_SWITCH_SYSTEM -cckr -Wf,-XNh3000
  25 #endif
  26
  27 /* SGI has all the fancy wait stuff, but we can't include sys/wait.h
  28    because it defines BIG_ENDIAN and LITTLE_ENDIAN (ugh!.)  Instead
  29    we'll just define WNOHANG right here.
  30    (An implicit decl is good enough for wait3.)  */
  31
  32 #define WNOHANG         0x1
  33
  34 /* No need to use sprintf to get the tty name--we get that from _getpty.  */
  35 #undef PTY_TTY_NAME_SPRINTF
  36 #define PTY_TTY_NAME_SPRINTF
  37 /* No need to get the pty name at all.  */
  38 #define PTY_NAME_SPRINTF
  39 /* We need only try once to open a pty.  */
  40 #define PTY_ITERATION
  41 /* Here is how to do it.  */
  42 /* It is necessary to prevent SIGCHLD signals within _getpty.
  43    So we block them. */
  44 #define PTY_OPEN                                                \
  45 {                                                               \
  46   int mask = sigblock (sigmask (SIGCHLD));                      \
  47   char *name = _getpty (&fd, O_RDWR | O_NDELAY, 0600, 0);       \
  48   sigsetmask(mask);                                             \
  49   if (name == 0)                                                \
  50     return -1;                                                  \
  51   if (fd < 0)                                                   \
  52     return -1;                                                  \
  53   if (fstat (fd, &stb) < 0)                                     \
  54     return -1;                                                  \
  55   strcpy (pty_name, name);                                      \
  56 }
  57
  58 /* jpff@maths.bath.ac.uk reports `struct exception' is not defined
  59    on this system, so inhibit use of matherr.  */
  60 #define NO_MATHERR