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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1 files changed, 128 insertions, 0 deletions

diff --git a/gcc/ada/s-gerela.ads b/gcc/ada/s-gerela.ads
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+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT RUN-TIME COMPONENTS                         --
+--                                                                          --
+--           S Y S T E M . G E N E R I C _ R E A L _ L A P A C K            --
+--                                                                          --
+--                                 S p e c                                  --
+--                                                                          --
+--          Copyright (C) 2006-2009, 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.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  Package comment required ???
+
+generic
+   type Real is digits <>;
+   type Real_Vector is array (Integer range <>) of Real;
+   type Real_Matrix is array (Integer range <>, Integer range <>) of Real;
+package System.Generic_Real_LAPACK is
+   pragma Pure;
+
+   type Integer_Vector is array (Integer range <>) of Integer;
+
+   Upper : aliased constant Character := 'U';
+   Lower : aliased constant Character := 'L';
+
+   --  LAPACK Computational Routines
+
+   --  gerfs  Refines the solution of a system of linear equations with
+   --         a general matrix and estimates its error
+   --  getrf  Computes LU factorization of a general m-by-n matrix
+   --  getri  Computes inverse of an LU-factored general matrix
+   --         square matrix, with multiple right-hand sides
+   --  getrs  Solves a system of linear equations with an LU-factored
+   --         square matrix, with multiple right-hand sides
+   --  orgtr  Generates the Float orthogonal matrix Q determined by sytrd
+   --  steqr  Computes all eigenvalues and eigenvectors of a symmetric or
+   --         Hermitian matrix reduced to tridiagonal form (QR algorithm)
+   --  sterf  Computes all eigenvalues of a Float symmetric
+   --         tridiagonal matrix using QR algorithm
+   --  sytrd  Reduces a Float symmetric matrix to tridiagonal form
+
+   procedure getrf
+     (M     : Natural;
+      N     : Natural;
+      A     : in out Real_Matrix;
+      Ld_A  : Positive;
+      I_Piv : out Integer_Vector;
+      Info  : access Integer);
+
+   procedure getri
+     (N      : Natural;
+      A      : in out Real_Matrix;
+      Ld_A   : Positive;
+      I_Piv  : Integer_Vector;
+      Work   : in out Real_Vector;
+      L_Work : Integer;
+      Info   : access Integer);
+
+   procedure getrs
+     (Trans  : access constant Character;
+      N      : Natural;
+      N_Rhs  : Natural;
+      A      : Real_Matrix;
+      Ld_A   : Positive;
+      I_Piv  : Integer_Vector;
+      B      : in out Real_Matrix;
+      Ld_B   : Positive;
+      Info   : access Integer);
+
+   procedure orgtr
+     (Uplo   : access constant Character;
+      N      : Natural;
+      A      : in out Real_Matrix;
+      Ld_A   : Positive;
+      Tau    : Real_Vector;
+      Work   : out Real_Vector;
+      L_Work : Integer;
+      Info   : access Integer);
+
+   procedure sterf
+     (N      : Natural;
+      D      : in out Real_Vector;
+      E      : in out Real_Vector;
+      Info   : access Integer);
+
+   procedure steqr
+     (Comp_Z : access constant Character;
+      N      : Natural;
+      D      : in out Real_Vector;
+      E      : in out Real_Vector;
+      Z      : in out Real_Matrix;
+      Ld_Z   : Positive;
+      Work   : out Real_Vector;
+      Info   : access Integer);
+
+   procedure sytrd
+     (Uplo   : access constant Character;
+      N      : Natural;
+      A      : in out Real_Matrix;
+      Ld_A   : Positive;
+      D      : out Real_Vector;
+      E      : out Real_Vector;
+      Tau    : out Real_Vector;
+      Work   : out Real_Vector;
+      L_Work : Integer;
+      Info   : access Integer);
+
+end System.Generic_Real_LAPACK;