--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/ada/indepsw.adb	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,67 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                              I N D E P S W                               --
+--                                                                          --
+--                                 B o d y                                  --
+--                                                                          --
+--          Copyright (C) 2009-2014, 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 is the default version: no switches are supported
+
+with Output; use Output;
+
+package body Indepsw is
+
+   -------------
+   -- Convert --
+   -------------
+
+   procedure Convert
+     (Switch   : Switch_Kind;
+      Argument : String;
+      To       : out String_List_Access)
+   is
+      pragma Unreferenced (Argument);
+   begin
+      case Switch is
+         when others =>
+            Write_Str ("warning: ");
+            Write_Line (No_Support_For (Switch).all);
+            To := null;
+      end case;
+   end Convert;
+
+   ------------------
+   -- Is_Supported --
+   ------------------
+
+   function Is_Supported (Switch : Switch_Kind) return Boolean is
+      pragma Unreferenced (Switch);
+   begin
+      return False;
+   end Is_Supported;
+
+end Indepsw;