diff --git a/ncurses/base/keyok.c b/ncurses/base/keyok.c
index ad8988c..37fddec 100644
--- a/ncurses/base/keyok.c
+++ b/ncurses/base/keyok.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2000,2006 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2012,2014 Free Software Foundation, Inc.              *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -27,12 +27,13 @@
  ****************************************************************************/
 
 /****************************************************************************
- *  Author: Thomas E. Dickey            1997-on                             *
+ *  Author: Thomas E. Dickey                        1997-on                 *
+ *     and: Juergen Pfeifer                         2009                    *
  ****************************************************************************/
 
 #include <curses.priv.h>
 
-MODULE_ID("$Id: keyok.c,v 1.7 2006/12/30 16:22:33 tom Exp $")
+MODULE_ID("$Id: keyok.c,v 1.14 2014/03/08 20:32:59 tom Exp $")
 
 /*
  * Enable (or disable) ncurses' interpretation of a keycode by adding (or
@@ -45,34 +46,58 @@
  */
 
 NCURSES_EXPORT(int)
-keyok(int c, bool flag)
+NCURSES_SP_NAME(keyok) (NCURSES_SP_DCLx int c, bool flag)
 {
     int code = ERR;
-    int count = 0;
-    char *s;
 
-    T((T_CALLED("keyok(%d,%d)"), c, flag));
-    if (c >= 0) {
-	unsigned ch = (unsigned) c;
-	if (flag) {
-	    while ((s = _nc_expand_try(SP->_key_ok, ch, &count, 0)) != 0
-		   && _nc_remove_key(&(SP->_key_ok), ch)) {
-		code = _nc_add_to_try(&(SP->_keytry), s, ch);
-		free(s);
-		count = 0;
-		if (code != OK)
-		    break;
-	    }
-	} else {
-	    while ((s = _nc_expand_try(SP->_keytry, ch, &count, 0)) != 0
-		   && _nc_remove_key(&(SP->_keytry), ch)) {
-		code = _nc_add_to_try(&(SP->_key_ok), s, ch);
-		free(s);
-		count = 0;
-		if (code != OK)
-		    break;
+    if (HasTerminal(SP_PARM)) {
+	T((T_CALLED("keyok(%p, %d,%d)"), (void *) SP_PARM, c, flag));
+#ifdef USE_TERM_DRIVER
+	code = CallDriver_2(sp, td_kyOk, c, flag);
+#else
+	T((T_CALLED("keyok(%d,%d)"), c, flag));
+	if (c >= 0) {
+	    int count = 0;
+	    char *s;
+	    unsigned ch = (unsigned) c;
+
+	    if (flag) {
+		while ((s = _nc_expand_try(SP_PARM->_key_ok,
+					   ch, &count, (size_t) 0)) != 0) {
+		    if (_nc_remove_key(&(SP_PARM->_key_ok), ch)) {
+			code = _nc_add_to_try(&(SP_PARM->_keytry), s, ch);
+			free(s);
+			count = 0;
+			if (code != OK)
+			    break;
+		    } else {
+			free(s);
+		    }
+		}
+	    } else {
+		while ((s = _nc_expand_try(SP_PARM->_keytry,
+					   ch, &count, (size_t) 0)) != 0) {
+		    if (_nc_remove_key(&(SP_PARM->_keytry), ch)) {
+			code = _nc_add_to_try(&(SP_PARM->_key_ok), s, ch);
+			free(s);
+			count = 0;
+			if (code != OK)
+			    break;
+		    } else {
+			free(s);
+		    }
+		}
 	    }
 	}
+#endif
     }
     returnCode(code);
 }
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(int)
+keyok(int c, bool flag)
+{
+    return NCURSES_SP_NAME(keyok) (CURRENT_SCREEN, c, flag);
+}
+#endif