obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
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files in the upstream repository.

1 files changed, 99 insertions, 0 deletions

diff --git a/gcc/ada/lib-sort.adb b/gcc/ada/lib-sort.adb
new file mode 100644
index 000000000..7bc155ba2
--- /dev/null
+++ b/gcc/ada/lib-sort.adb
@@ -0,0 +1,99 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                             L I B . S O R T                              --
+--                                                                          --
+--                                 B o d y                                  --
+--                                                                          --
+--          Copyright (C) 1992-2009, 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.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+with GNAT.Heap_Sort_G;
+
+separate (Lib)
+procedure Sort (Tbl : in out Unit_Ref_Table) is
+
+   T : array (0 .. Integer (Tbl'Last - Tbl'First + 1)) of Unit_Number_Type;
+   --  Actual sort is done on this copy of the array with 0's origin
+   --  subscripts. Location 0 is used as a temporary by the sorting algorithm.
+   --  Also the addressing of the table is more efficient with 0's origin,
+   --  even though we have to copy Tbl back and forth.
+
+   function Lt_Uname (C1, C2 : Natural) return Boolean;
+   --  Comparison routine for comparing Unames. Needed by the sorting routine
+
+   procedure Move_Uname (From : Natural; To : Natural);
+   --  Move routine needed by the sorting routine below
+
+   package Sorting is new GNAT.Heap_Sort_G (Move_Uname, Lt_Uname);
+
+   --------------
+   -- Lt_Uname --
+   --------------
+
+   function Lt_Uname (C1, C2 : Natural) return Boolean is
+   begin
+      --  Preprocessing data and definition files are not sorted, they are
+      --  at the bottom of the list. They are recognized because they are
+      --  the only ones without a Unit_Name.
+
+      if Units.Table (T (C1)).Unit_Name = No_Unit_Name then
+         return False;
+
+      elsif Units.Table (T (C2)).Unit_Name = No_Unit_Name then
+         return True;
+
+      else
+         return
+           Uname_Lt
+             (Units.Table (T (C1)).Unit_Name, Units.Table (T (C2)).Unit_Name);
+      end if;
+   end Lt_Uname;
+
+   ----------------
+   -- Move_Uname --
+   ----------------
+
+   procedure Move_Uname (From : Natural; To : Natural) is
+   begin
+      T (To) := T (From);
+   end Move_Uname;
+
+--  Start of processing for Sort
+
+begin
+   if T'Last > 0 then
+      for I in 1 .. T'Last loop
+         T (I) := Tbl (Int (I) - 1 + Tbl'First);
+      end loop;
+
+      Sorting.Sort (T'Last);
+
+   --  Sort is complete, copy result back into place
+
+      for I in 1 .. T'Last loop
+         Tbl (Int (I) - 1 + Tbl'First) := T (I);
+      end loop;
+   end if;
+end Sort;