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 /* XPointer is not defined in the older X headers  -- JPff@maths.bath.ac.uk */
   6 #define XPointer caddr_t
   7
   8 #define HAVE_ALLOCA
   9 #ifndef NOT_C_CODE
  10 #include <alloca.h>
  11 #endif
  12
  13 #undef NEED_SIOCTL
  14
  15 /* Include unistd.h, even though we don't define POSIX.  */
  16 #define NEED_UNISTD_H
  17
  18 /* Make process_send_signal work by "typing" a signal character on the pty.  */
  19 #define SIGNALS_VIA_CHARACTERS
  20
  21 #ifndef __GNUC__
  22 /* use K&R C */
  23 /* We need to increase the expression tree space with -Wf,-XNh
  24    (ghazi@caip.rutgers.edu 7/8/97.)
  25 */
  26 #define C_SWITCH_SYSTEM -cckr -Wf,-XNh4000
  27 #endif
  28
  29 /* SGI has all the fancy wait stuff, but we can't include sys/wait.h
  30    because it defines BIG_ENDIAN and LITTLE_ENDIAN (ugh!.)  Instead
  31    we'll just define WNOHANG right here.
  32    (An implicit decl is good enough for wait3.)  */
  33
  34 #define WNOHANG         0x1
  35
  36 /* No need to use sprintf to get the tty name--we get that from _getpty.  */
  37 #undef PTY_TTY_NAME_SPRINTF
  38 #define PTY_TTY_NAME_SPRINTF
  39 /* No need to get the pty name at all.  */
  40 #define PTY_NAME_SPRINTF
  41 /* We need only try once to open a pty.  */
  42 #define PTY_ITERATION
  43 /* Here is how to do it.  */
  44 /* It is necessary to prevent SIGCHLD signals within _getpty.
  45    So we block them. */
  46 #define PTY_OPEN                                                \
  47 {                                                               \
  48   int mask = sigblock (sigmask (SIGCHLD));                      \
  49   char *name = _getpty (&fd, O_RDWR | O_NDELAY, 0600, 0);       \
  50   sigsetmask(mask);                                             \
  51   if (name == 0)                                                \
  52     return -1;                                                  \
  53   if (fd < 0)                                                   \
  54     return -1;                                                  \
  55   if (fstat (fd, &stb) < 0)                                     \
  56     return -1;                                                  \
  57   strcpy (pty_name, name);                                      \
  58 }