--- motif_c.c.orig	Mon May 20 09:14:09 1996
+++ motif_c.c	Sat Mar  7 13:19:57 1998
@@ -370,15 +370,10 @@
  */
 static int ctl_read(int32 *valp)
 {
-  int num;
-
-  /* We don't wan't to lock on reading  */
-  num=pipe_read_ready(); 
-
-  if (num==0)
-      return RC_NONE;
-  
-  return(ctl_blocking_read(valp));
+    if (pipe_read_ready())
+	return(ctl_blocking_read(valp));
+    else
+	return RC_NONE;
 }
 
 static void ctl_pass_playing_list(int number_of_files, char *list_of_files[])
--- motif_p.c.orig	Mon May 20 09:09:46 1996
+++ motif_p.c	Sat Mar  7 13:22:05 1998
@@ -29,7 +29,11 @@
 #include <stdarg.h>
 #include <sys/ioctl.h>
 #ifdef SOLARIS
-#include <sys/filio.h>
+#include <sys/stropts.h>
+#endif
+#ifdef sgi
+#include <sys/time.h>
+#include <bstring.h>
 #endif
 
 #include "config.h"
@@ -39,6 +43,9 @@
 int pipeAppli[2],pipeMotif[2]; /* Pipe for communication with MOTIF process   */
 int fpip_in, fpip_out;	/* in and out depends in which process we are */
 int pid;	               /* Pid for child process */
+#ifdef sgi
+static fd_set selector;
+#endif
 
 /* DATA VALIDITY CHECK */
 #define INT_CODE 214
@@ -146,7 +153,20 @@
 {
     int num;
     
+#ifdef sgi
+    static struct timeval zero = {0, 0};
+    FD_SET(fpip_in, &selector);
+    num = select(fpip_in + 1, &selector, (fd_set *)0, (fd_set *)0, &zero);
+    if (num < 0)
+	pipe_error("pipe_read_ready");
+    num = FD_ISSET(fpip_in, &selector);
+#else
+#ifdef SOLARIS
+    ioctl(fpip_in,I_NREAD,&num); /* see how many chars in buffer. */
+#else
     ioctl(fpip_in,FIONREAD,&num); /* see how many chars in buffer. */
+#endif
+#endif
     return num;
 }
 
--- output.c.orig	Mon May 20 10:04:54 1996
+++ output.c	Sat Mar  7 13:31:24 1998
@@ -48,6 +48,11 @@
 #define DEFAULT_PLAY_MODE &sun_play_mode
 #endif
 
+#ifdef AU_SGI
+extern PlayMode sgi_play_mode;
+#define DEFAULT_PLAY_MODE &sgi_play_mode
+#endif
+
 #ifdef AU_WIN32
 extern PlayMode win32_play_mode;
 #define DEFAULT_PLAY_MODE &win32_play_mode
--- tk_c.c.orig	Mon May 20 09:14:24 1996
+++ tk_c.c	Sat Mar  7 13:27:08 1998
@@ -17,6 +17,13 @@
 #include <stdarg.h>
 #include <string.h>
 #include <sys/ioctl.h>
+#ifdef SOLARIS
+#include <sys/stropts.h>
+#endif
+#ifdef sgi
+#include <sys/time.h>
+#include <bstring.h>
+#endif
 
 #include "config.h"
 #include "common.h"
@@ -362,15 +369,10 @@
  */
 static int ctl_read(int32 *valp)
 {
-	int num;
-
-	/* We don't wan't to lock on reading  */
-	num=pipe_read_ready(); 
-
-	if (num==0)
-		return RC_NONE;
-  
+    if (pipe_read_ready())
 	return(ctl_blocking_read(valp));
+    else
+	return RC_NONE;
 }
 
 static void ctl_pass_playing_list(int number_of_files, char *list_of_files[])
@@ -439,6 +441,9 @@
 static int pipeAppli[2],pipePanel[2]; /* Pipe for communication with Tcl/Tk process   */
 static int fpip_in, fpip_out;	/* in and out depends in which process we are */
 static int pid;	               /* Pid for child process */
+#ifdef sgi
+static fd_set selector;
+#endif
 
 static void pipe_open()
 {
@@ -477,7 +482,21 @@
 static int pipe_read_ready()
 {
     int num;
+    
+#ifdef sgi
+    static struct timeval zero = {0, 0};
+    FD_SET(fpip_in, &selector);
+    num = select(fpip_in + 1, &selector, (fd_set *)0, (fd_set *)0, &zero);
+    if (num < 0)
+	pipe_error("pipe_read_ready");
+    num = FD_ISSET(fpip_in, &selector);
+#else
+#ifdef SOLARIS
+    ioctl(fpip_in,I_NREAD,&num); /* see how many chars in buffer. */
+#else
     ioctl(fpip_in,FIONREAD,&num); /* see how many chars in buffer. */
+#endif
+#endif
     return num;
 }