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diff --git a/ncurses/tinfo/lib_options.c b/ncurses/tinfo/lib_options.c
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+/****************************************************************************
+ * Copyright (c) 1998-2006,2008 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 *
+ * "Software"), to deal in the Software without restriction, including *
+ * without limitation the rights to use, copy, modify, merge, publish, *
+ * distribute, distribute with modifications, sublicense, and/or sell *
+ * copies of the Software, and to permit persons to whom the Software is *
+ * furnished to do so, subject to the following conditions: *
+ * *
+ * The above copyright notice and this permission notice shall be included *
+ * in all copies or substantial portions of the Software. *
+ * *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
+ * *
+ * Except as contained in this notice, the name(s) of the above copyright *
+ * holders shall not be used in advertising or otherwise to promote the *
+ * sale, use or other dealings in this Software without prior written *
+ * authorization. *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
+ * and: Eric S. Raymond <esr@snark.thyrsus.com> *
+ * and: Thomas E. Dickey 1996-on *
+ ****************************************************************************/
+
+/*
+** lib_options.c
+**
+** The routines to handle option setting.
+**
+*/
+
+#include <curses.priv.h>
+
+#include <term.h>
+
+MODULE_ID("$Id: lib_options.c,v 1.52 2008/05/03 23:09:20 tom Exp $")
+
+NCURSES_EXPORT(int)
+idlok(WINDOW *win, bool flag)
+{
+ T((T_CALLED("idlok(%p,%d)"), win, flag));
+
+ if (win) {
+ _nc_idlok = win->_idlok = (flag && (has_il() || change_scroll_region));
+ returnCode(OK);
+ } else
+ returnCode(ERR);
+}
+
+NCURSES_EXPORT(void)
+idcok(WINDOW *win, bool flag)
+{
+ T((T_CALLED("idcok(%p,%d)"), win, flag));
+
+ if (win)
+ _nc_idcok = win->_idcok = (flag && has_ic());
+
+ returnVoid;
+}
+
+NCURSES_EXPORT(int)
+halfdelay(int t)
+{
+ T((T_CALLED("halfdelay(%d)"), t));
+
+ if (t < 1 || t > 255 || SP == 0)
+ returnCode(ERR);
+
+ cbreak();
+ SP->_cbreak = t + 1;
+ returnCode(OK);
+}
+
+NCURSES_EXPORT(int)
+nodelay(WINDOW *win, bool flag)
+{
+ T((T_CALLED("nodelay(%p,%d)"), win, flag));
+
+ if (win) {
+ if (flag == TRUE)
+ win->_delay = 0;
+ else
+ win->_delay = -1;
+ returnCode(OK);
+ } else
+ returnCode(ERR);
+}
+
+NCURSES_EXPORT(int)
+notimeout(WINDOW *win, bool f)
+{
+ T((T_CALLED("notimeout(%p,%d)"), win, f));
+
+ if (win) {
+ win->_notimeout = f;
+ returnCode(OK);
+ } else
+ returnCode(ERR);
+}
+
+NCURSES_EXPORT(void)
+wtimeout(WINDOW *win, int delay)
+{
+ T((T_CALLED("wtimeout(%p,%d)"), win, delay));
+
+ if (win) {
+ win->_delay = delay;
+ }
+ returnVoid;
+}
+
+NCURSES_EXPORT(int)
+keypad(WINDOW *win, bool flag)
+{
+ T((T_CALLED("keypad(%p,%d)"), win, flag));
+
+ if (win) {
+ win->_use_keypad = flag;
+ returnCode(_nc_keypad(SP, flag));
+ } else
+ returnCode(ERR);
+}
+
+NCURSES_EXPORT(int)
+meta(WINDOW *win GCC_UNUSED, bool flag)
+{
+ int result = ERR;
+
+ /* Ok, we stay relaxed and don't signal an error if win is NULL */
+ T((T_CALLED("meta(%p,%d)"), win, flag));
+
+ if (SP != 0) {
+ SP->_use_meta = flag;
+
+ if (flag && meta_on) {
+ TPUTS_TRACE("meta_on");
+ putp(meta_on);
+ } else if (!flag && meta_off) {
+ TPUTS_TRACE("meta_off");
+ putp(meta_off);
+ }
+ result = OK;
+ }
+ returnCode(result);
+}
+
+/* curs_set() moved here to narrow the kernel interface */
+
+NCURSES_EXPORT(int)
+curs_set(int vis)
+{
+ int result = ERR;
+
+ T((T_CALLED("curs_set(%d)"), vis));
+ if (SP != 0 && vis >= 0 && vis <= 2) {
+ int cursor = SP->_cursor;
+
+ if (vis == cursor) {
+ result = cursor;
+ } else {
+ result = (cursor == -1 ? 1 : cursor);
+ switch (vis) {
+ case 2:
+ if (cursor_visible) {
+ TPUTS_TRACE("cursor_visible");
+ putp(cursor_visible);
+ } else
+ result = ERR;
+ break;
+ case 1:
+ if (cursor_normal) {
+ TPUTS_TRACE("cursor_normal");
+ putp(cursor_normal);
+ } else
+ result = ERR;
+ break;
+ case 0:
+ if (cursor_invisible) {
+ TPUTS_TRACE("cursor_invisible");
+ putp(cursor_invisible);
+ } else
+ result = ERR;
+ break;
+ }
+ SP->_cursor = vis;
+ _nc_flush();
+ }
+ }
+ returnCode(result);
+}
+
+NCURSES_EXPORT(int)
+typeahead(int fd)
+{
+ T((T_CALLED("typeahead(%d)"), fd));
+ if (SP != 0) {
+ SP->_checkfd = fd;
+ returnCode(OK);
+ } else {
+ returnCode(ERR);
+ }
+}
+
+/*
+** has_key()
+**
+** Return TRUE if the current terminal has the given key
+**
+*/
+
+#if NCURSES_EXT_FUNCS
+static int
+has_key_internal(int keycode, TRIES * tp)
+{
+ if (tp == 0)
+ return (FALSE);
+ else if (tp->value == keycode)
+ return (TRUE);
+ else
+ return (has_key_internal(keycode, tp->child)
+ || has_key_internal(keycode, tp->sibling));
+}
+
+NCURSES_EXPORT(int)
+has_key(int keycode)
+{
+ T((T_CALLED("has_key(%d)"), keycode));
+ returnCode(SP != 0 ? has_key_internal(keycode, SP->_keytry) : FALSE);
+}
+#endif /* NCURSES_EXT_FUNCS */
+
+/* Turn the keypad on/off
+ *
+ * Note: we flush the output because changing this mode causes some terminals
+ * to emit different escape sequences for cursor and keypad keys. If we don't
+ * flush, then the next wgetch may get the escape sequence that corresponds to
+ * the terminal state _before_ switching modes.
+ */
+NCURSES_EXPORT(int)
+_nc_keypad(SCREEN *sp, bool flag)
+{
+ if (flag && keypad_xmit) {
+ TPUTS_TRACE("keypad_xmit");
+ putp(keypad_xmit);
+ _nc_flush();
+ } else if (!flag && keypad_local) {
+ TPUTS_TRACE("keypad_local");
+ putp(keypad_local);
+ _nc_flush();
+ }
+
+ if (sp != 0) {
+ if (flag && !sp->_tried) {
+ _nc_init_keytry(sp);
+ sp->_tried = TRUE;
+ }
+ sp->_keypad_on = flag;
+ }
+ return (OK);
+}