--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/ada/libgnat/a-colire.ads	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,79 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT RUN-TIME COMPONENTS                         --
+--                                                                          --
+--             A D A . C O M M A N D _ L I N E . R E M O V E                --
+--                                                                          --
+--                                 S p e c                                  --
+--                                                                          --
+--          Copyright (C) 1999-2017, 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 is intended to be used in conjunction with its parent unit,
+--  Ada.Command_Line. It provides facilities for logically removing arguments
+--  from the command line, so that subsequent calls to Argument_Count and
+--  Argument will reflect the removals.
+
+--  For example, if the original command line has three arguments A B C, so
+--  that Argument_Count is initially three, then after removing B, the second
+--  argument, Argument_Count will be 2, and Argument (2) will return C.
+
+package Ada.Command_Line.Remove is
+   pragma Preelaborate;
+
+   procedure Remove_Argument (Number : Positive);
+   --  Removes the argument identified by Number, which must be in the
+   --  range 1 .. Argument_Count (i.e. an in range argument number which
+   --  reflects removals). If Number is out of range Constraint_Error
+   --  will be raised.
+   --
+   --  Note: the numbering of arguments greater than Number is affected
+   --  by the call. If you need a loop through the arguments, removing
+   --  some as you go, run the loop in reverse to avoid confusion from
+   --  this renumbering:
+   --
+   --    for J in reverse 1 .. Argument_Count loop
+   --      if Should_Remove (Arguments (J)) then
+   --        Remove_Argument (J);
+   --      end if;
+   --    end loop;
+   --
+   --  Reversing the loop in this manner avoids the confusion.
+
+   procedure Remove_Arguments (From : Positive; To : Natural);
+   --  Removes arguments in the given From..To range. From must be in the
+   --  range 1 .. Argument_Count and To in the range 0 .. Argument_Count.
+   --  Constraint_Error is raised if either argument is out of range. If
+   --  To is less than From, then the call has no effect.
+
+   procedure Remove_Argument (Argument : String);
+   --  Removes the argument which matches the given string Argument. Has
+   --  no effect if no argument matches the string. If more than one
+   --  argument matches the string, all are removed.
+
+   procedure Remove_Arguments (Argument_Prefix : String);
+   --  Removes all arguments whose prefix matches Argument_Prefix. Has
+   --  no effect if no argument matches the string. For example a call
+   --  to Remove_Arguments ("--") removes all arguments starting with --.
+
+end Ada.Command_Line.Remove;