--- xview-3.2p1.4-18c/lib/libxview/ttysw/tty_init.c	2005-04-08 11:39:49.000000000 +0200
+++ xview-3.2p1.4-18c-unix98ptys/lib/libxview/ttysw/tty_init.c	2005-04-08 12:20:15.000000000 +0200
@@ -27,6 +27,10 @@
 #include <pty.h>
 #endif
 
+#ifdef _XOPEN_SOURCE
+#include <stdlib.h>
+#endif
+
 #include <xview_private/portable.h>	/* for XV* defines and termios */
 
 #ifdef	XV_USE_SVR4_PTYS
@@ -731,6 +735,18 @@
     int		    tmpfd;
     int		    pty = 0, tty = 0;
     int             on = 1;
+
+#ifdef _XOPEN_SOURCE
+    /* info: pty master, tty slave, Ttysw->tty_name is char[20] */
+    if (((pty=getpt())<0)||(grantpt(pty)<0)||(unlockpt(pty)<0)) {
+        (void) fprintf(stderr, XV_MSG("Error: getpt/grantpt/unlockpt failed\n"));
+        return XV_ERROR; }
+    if ((ptsname(pty)==NULL)||(strncpy(ttysw->tty_name,ptsname(pty),19)==NULL)) {
+        (void) fprintf(stderr, XV_MSG("Error: ptsname/strncpy failed\n"));
+	return XV_ERROR; } 
+    if ((tty=open(ttysw->tty_name,O_RDWR))<0) {
+        return XV_ERROR; }
+#else
 #ifdef __CYGWIN__
     openpty(&pty, &tty, ttysw->tty_name, NULL, NULL);
 #else
@@ -949,6 +965,7 @@
  
 #endif /* SVR4 */
 #endif /* cygwin */
+#endif /* _XOPEN_SOURCE */
 
     if (ttysw_restoreparms(tty))
 	(void) putenv(WE_TTYPARMS_E);