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diff --git a/libstdc++-v3/config/basic_file_libio.h b/libstdc++-v3/config/basic_file_libio.h
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+// Wrapper of C-language FILE struct -*- C++ -*-
+
+// Copyright (C) 2000, 2001 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 2, 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.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING. If not, write to the Free
+// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+// USA.
+
+// As a special exception, you may use this file as part of a free software
+// library without restriction. Specifically, if other files instantiate
+// templates or use macros or inline functions from this file, or you compile
+// this file and link it with other files to produce an executable, this
+// file does not by itself cause the resulting executable to be covered by
+// the GNU General Public License. This exception does not however
+// invalidate any other reasons why the executable file might be covered by
+// the GNU General Public License.
+
+//
+// ISO C++ 14882: 27.8 File-based streams
+//
+
+#include <libioP.h>
+
+namespace std
+{
+ // __basic_file<char> specializations
+ template<>
+ __basic_file<char>::__basic_file(__c_lock* __lock);
+
+ template<>
+ int
+ __basic_file<char>::overflow(int __c);
+
+ template<>
+ int
+ __basic_file<char>::underflow();
+
+ template<>
+ int
+ __basic_file<char>::uflow();
+
+ template<>
+ int
+ __basic_file<char>::pbackfail(int __c);
+
+ template<>
+ streamsize
+ __basic_file<char>::xsputn(const char* __s, streamsize __n);
+
+ template<>
+ streamoff
+ __basic_file<char>::seekoff(streamoff __off, ios_base::seekdir __way,
+ ios_base::openmode __mode);
+
+ template<>
+ streamoff
+ __basic_file<char>::seekpos(streamoff __pos, ios_base::openmode __mode);
+
+ template<>
+ streambuf*
+ __basic_file<char>::setbuf(char* __b, int __len);
+
+ template<>
+ int
+ __basic_file<char>::sync();
+
+ template<>
+ int
+ __basic_file<char>::doallocate();
+
+ // __basic_file<wchar_t> specializations
+#ifdef _GLIBCPP_USE_WCHAR_T
+ template<>
+ __basic_file<wchar_t>::__basic_file(__c_lock* __lock);
+
+ template<>
+ int
+ __basic_file<wchar_t>::overflow(int __c);
+
+ template<>
+ int
+ __basic_file<wchar_t>::underflow();
+
+ template<>
+ int
+ __basic_file<wchar_t>::uflow();
+
+ template<>
+ int
+ __basic_file<wchar_t>::pbackfail(int __c);
+
+ template<>
+ streamsize
+ __basic_file<wchar_t>::xsputn(const wchar_t* __s, streamsize __n);
+
+ template<>
+ streamoff
+ __basic_file<wchar_t>::seekoff(streamoff __off, ios_base::seekdir __way,
+ ios_base::openmode __mode);
+
+ template<>
+ streamoff
+ __basic_file<wchar_t>::seekpos(streamoff __pos, ios_base::openmode __mode);
+
+ template<>
+ streambuf*
+ __basic_file<wchar_t>::setbuf(wchar_t* __b, int __len);
+
+ template<>
+ int
+ __basic_file<wchar_t>::sync();
+
+ template<>
+ int
+ __basic_file<wchar_t>::doallocate();
+#endif
+
+ template<typename _CharT>
+ __basic_file<_CharT>::~__basic_file()
+ { _IO_file_finish(this, 0); }
+
+ template<typename _CharT>
+ void
+ __basic_file<_CharT>::_M_open_mode(ios_base::openmode __mode,
+ int& __p_mode, int& __rw_mode,
+ char* /*__c_mode*/)
+ {
+#ifdef O_BINARY
+ bool __testb = __mode & ios_base::binary;
+#endif
+ bool __testi = __mode & ios_base::in;
+ bool __testo = __mode & ios_base::out;
+ bool __testt = __mode & ios_base::trunc;
+ bool __testa = __mode & ios_base::app;
+
+ if (!__testi && __testo && !__testt && !__testa)
+ {
+ __p_mode = O_WRONLY | O_TRUNC | O_CREAT;
+ __rw_mode = _IO_NO_READS;
+ }
+ if (!__testi && __testo && !__testt && __testa)
+ {
+ __p_mode = O_WRONLY | O_APPEND | O_CREAT;
+ __rw_mode = _IO_NO_READS | _IO_IS_APPENDING;
+ }
+ if (!__testi && __testo && __testt && !__testa)
+ {
+ __p_mode = O_WRONLY | O_TRUNC | O_CREAT;
+ __rw_mode = _IO_NO_READS;
+ }
+ if (__testi && !__testo && !__testt && !__testa)
+ {
+ __p_mode = O_RDONLY;
+ __rw_mode = _IO_NO_WRITES;
+ }
+ if (__testi && __testo && !__testt && !__testa)
+ {
+ __p_mode = O_RDWR;
+ __rw_mode = 0;
+ }
+ if (__testi && __testo && __testt && !__testa)
+ {
+ __p_mode = O_RDWR | O_TRUNC | O_CREAT;
+ __rw_mode = 0;
+ }
+#ifdef O_BINARY
+ if (__testb)
+ __p_mode |= O_BINARY;
+#endif
+ }
+
+ template<typename _CharT>
+ __basic_file<_CharT>*
+ __basic_file<_CharT>::sys_open(__c_file_type* __f,
+ ios_base::openmode __mode)
+ {
+ __basic_file* __ret = NULL;
+ int __fd = fileno(__f);
+ int __p_mode = 0;
+ int __rw_mode = _IO_NO_READS + _IO_NO_WRITES;
+ char __c_mode[4];
+
+ _M_open_mode(__mode, __p_mode, __rw_mode, __c_mode);
+
+ if (!_IO_file_is_open(this))
+ {
+ _fileno = __fd;
+ _flags &= ~(_IO_NO_READS + _IO_NO_WRITES);
+ _flags |= _IO_DELETE_DONT_CLOSE;
+ _offset = _IO_pos_BAD;
+ int __mask = _IO_NO_READS + _IO_NO_WRITES + _IO_IS_APPENDING;
+ _IO_mask_flags(this, __rw_mode, __mask);
+ }
+
+ return __ret;
+ }
+
+ template<typename _CharT>
+ __basic_file<_CharT>*
+ __basic_file<_CharT>::open(const char* __name, ios_base::openmode __mode,
+ int __prot)
+ {
+ __basic_file* __ret = NULL;
+ int __p_mode = 0;
+ int __rw_mode = _IO_NO_READS + _IO_NO_WRITES;
+ char __c_mode[4];
+
+ _M_open_mode(__mode, __p_mode, __rw_mode, __c_mode);
+ if (!_IO_file_is_open(this))
+ {
+ __c_file_type* __f;
+ __f = _IO_file_open(this, __name, __p_mode, __prot, __rw_mode, 0);
+ __ret = __f ? this: NULL;
+ }
+ return __ret;
+ }
+
+ template<typename _CharT>
+ bool
+ __basic_file<_CharT>::is_open() { return _fileno >= 0; }
+
+ template<typename _CharT>
+ __basic_file<_CharT>*
+ __basic_file<_CharT>::close()
+ {
+ return _IO_file_close_it(this) ? static_cast<__basic_file*>(NULL) : this;
+ }
+
+ template<typename _CharT>
+ streamsize
+ __basic_file<_CharT>::xsgetn(_CharT* __s, streamsize __n)
+ { return _IO_file_xsgetn(this, __s, __n); }
+
+ // NB: Unused.
+ template<typename _CharT>
+ streamsize
+ __basic_file<_CharT>::sys_read(_CharT* __s, streamsize __n)
+ { return _IO_file_read(this, __s, __n); }
+
+ // NB: Unused.
+ template<typename _CharT>
+ streamsize
+ __basic_file<_CharT>::sys_write(const _CharT* __s, streamsize __n)
+ { return _IO_file_write(this, __s, __n); }
+
+ // NB: Unused.
+ template<typename _CharT>
+ streamoff
+ __basic_file<_CharT>::sys_seek(streamoff __pos, ios_base::seekdir __way)
+ { return _IO_file_seek(this, __pos, __way); }
+
+ // NB: Unused.
+ template<typename _CharT>
+ int
+ __basic_file<_CharT>::sys_close()
+ { return _IO_file_close(this); }
+
+ // NB: Unused.
+ template<typename _CharT>
+ int
+ __basic_file<_CharT>::sys_stat(void* __v)
+ { return _IO_file_stat(this, __v); }
+
+ // NB: Unused.
+ template<typename _CharT>
+ int
+ __basic_file<_CharT>::showmanyc() { return EOF; }
+
+ // NB: Unused.
+ template<typename _CharT>
+ void
+ __basic_file<_CharT>::imbue(void* /*__v*/) { }
+} // namespace std
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