[gcc] GCC 4.5.0=>4.5.1

gcc/libstdc++-v3/include/c_compatibility/errno.h

-// -*- C++ -*- compatibility header.
-
-// Copyright (C) 2002, 2007, 2009 Free Software Foundation, Inc.
-//
-// This file is part of the GNU ISO C++ Library.  This library is free
-// software; you can redistribute it and/or modify it under the
-// terms of the GNU General Public License as published by the
-// Free Software Foundation; either version 3, or (at your option)
-// any later version.
-
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// 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/>.
-
-/** @file errno.h
- *  This is a Standard C++ Library header.
- */
-
-#include <cerrno>
-
-#ifndef _GLIBCXX_ERRNO_H
-#define _GLIBCXX_ERRNO_H 1
-
-#endif