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[emacs.git] / src / s / irix4-0.h
blob215cbdc32def787ebe207ee4de93c3d50a138eff
1 #include "irix3-3.h"
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
8 #undef NEED_SIOCTL
10 /* Include unistd.h, even though we don't define POSIX. */
11 #define NEED_UNISTD_H
13 /* Make process_send_signal work by "typing" a signal character on the pty. */
14 #define SIGNALS_VIA_CHARACTERS
16 #ifndef __GNUC__
17 /* use K&R C */
18 /* We need to increase the expression tree space with -Wf,-XNh
19 (ghazi@caip.rutgers.edu 7/8/97.)
21 #define C_SWITCH_SYSTEM -cckr -Wf,-XNh4000
22 #endif
24 /* SGI has all the fancy wait stuff, but we can't include sys/wait.h
25 because it defines BIG_ENDIAN and LITTLE_ENDIAN (ugh!.) Instead
26 we'll just define WNOHANG right here.
27 (An implicit decl is good enough for wait3.) */
29 #define WNOHANG 0x1
31 /* No need to use sprintf to get the tty name--we get that from _getpty. */
32 #undef PTY_TTY_NAME_SPRINTF
33 #define PTY_TTY_NAME_SPRINTF
34 /* No need to get the pty name at all. */
35 #define PTY_NAME_SPRINTF
36 /* We need only try once to open a pty. */
37 #define PTY_ITERATION
38 /* Here is how to do it. */
39 /* It is necessary to prevent SIGCHLD signals within _getpty.
40 So we block them. */
41 #define PTY_OPEN \
42 { \
43 int mask = sigblock (sigmask (SIGCHLD)); \
44 char *name = _getpty (&fd, O_RDWR | O_NDELAY, 0600, 0); \
45 sigsetmask(mask); \
46 if (name == 0) \
47 return -1; \
48 if (fd < 0) \
49 return -1; \
50 if (fstat (fd, &stb) < 0) \
51 return -1; \
52 strcpy (pty_name, name); \
55 /* arch-tag: cfd7e200-a4dc-4f67-9a32-4184c10b0c57
56 (do not change this comment) */