--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/ada/libgnat/a-zrstfi.ads	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,41 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT RUN-TIME COMPONENTS                         --
+--                                                                          --
+--                ADA.WIDE_WIDE_TEXT_IO.RESET_STANDARD_FILES                --
+--                                                                          --
+--                                 S p e c                                  --
+--                                                                          --
+--            Copyright (C) 2009-2017, Free Software Foundation, Inc.       --
+--                                                                          --
+-- GNAT is free software;  you can  redistribute it  and/or modify it under --
+-- terms of the  GNU General Public License as published  by the Free Soft- --
+-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
+-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
+-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
+-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
+--                                                                          --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception,   --
+-- version 3.1, as published by the Free Software Foundation.               --
+--                                                                          --
+-- You should have received a copy of the GNU General Public License and    --
+-- a copy of the GCC Runtime Library Exception along with this program;     --
+-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
+-- <http://www.gnu.org/licenses/>.                                          --
+--                                                                          --
+-- GNAT was originally developed  by the GNAT team at  New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  This package provides a reset routine that resets the standard files used
+--  by Ada.Wide_Wide_Text_IO. This is useful in systems such as VxWorks where
+--  Ada.Wide_Wide_Text_IO is elaborated at the program start, but a system
+--  restart may alter the status of these files, resulting in incorrect
+--  operation of Wide_Wide_Text_IO (in particular if the standard input file
+--  is changed to be interactive, then Get_Line may hang looking for an extra
+--  character after the end of the line.
+
+procedure Ada.Wide_Wide_Text_IO.Reset_Standard_Files;
+--  Reset standard Wide_Wide_Text_IO files as described above