--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/ada/libgnat/a-cgaaso.adb	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,47 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT LIBRARY COMPONENTS                          --
+--                                                                          --
+--              ADA.CONTAINERS.GENERIC_ANONYMOUS_ARRAY_SORT                 --
+--                                                                          --
+--                                 B o d y                                  --
+--                                                                          --
+--          Copyright (C) 2004-2017, 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/>.                                          --
+--                                                                          --
+-- This unit was originally developed by Matthew J Heaney.                  --
+------------------------------------------------------------------------------
+
+--  This unit was originally a GNAT-specific addition to Ada 2005. A unit
+--  providing the same feature, Ada.Containers.Generic_Sort, was defined for
+--  Ada 2012.  We retain Generic_Anonymous_Array_Sort for compatibility, but
+--  implement it in terms of the official unit, Generic_Sort.
+
+with Ada.Containers.Generic_Sort;
+
+procedure Ada.Containers.Generic_Anonymous_Array_Sort
+  (First, Last : Index_Type'Base)
+is
+   procedure Sort is new Ada.Containers.Generic_Sort
+     (Index_Type => Index_Type,
+      Before     => Less,
+      Swap       => Swap);
+
+begin
+   Sort (First, Last);
+end Ada.Containers.Generic_Anonymous_Array_Sort;