2003-06-11 Benjamin Kosnik <bkoz@redhat.com>

	* acinclude.m4 (GLIBCPP_ENABLE_CSTDIO): Simplify.
	* aclocal.m4: Regenerate.
	* Makefile.am (SUBDIRS): Remove libio.
	* Makefile.in: Regenerate.
	* configure.in: Same.
	* configure: Regenerate.
	* config/io/basic_file_libio.cc: Remove.
	* config/io/basic_file_libio.h: Remove.
	* config/io/c_io_libio_codecvt.c: Remove.
	* config/io/c_io_libio.h: Remove.
	* libio/*: Remove.
	* src/Makefile.am: Same.
	* src/Makefile.in: Regenerate.
	* docs/html/configopts.html: Edits.
	* docs/html/explanations.html: Edits.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@67813 138bc75d-0d04-0410-961f-82ee72b054a4

4 files changed, 0 insertions, 988 deletions

diff --git a/libstdc++-v3/config/io/basic_file_libio.cc b/libstdc++-v3/config/io/basic_file_libio.cc
deleted file mode 100644
index 60eb006a847..00000000000
--- a/libstdc++-v3/config/io/basic_file_libio.cc
+++ /dev/null
@@ -1,194 +0,0 @@
-// 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 <bits/basic_file.h>
-
-namespace std 
-{
-  // __basic_file<char> definitions
-  __basic_file<char>::__basic_file(__c_lock* __lock)
-  {
-#ifdef _IO_MTSAFE_IO
-    _lock = __lock;
-#endif
-    // Don't set the orientation of the stream when initializing.
-#ifdef _GLIBCPP_USE_WCHAR_T
-    _IO_no_init(this, 0, 0, &_M_wfile, 0);
-#else /* !defined(_GLIBCPP_USE_WCHAR_T) */
-    _IO_no_init(this, 0, 0, NULL, 0);
-#endif /* !defined(_GLIBCPP_USE_WCHAR_T) */
-    _IO_JUMPS((_IO_FILE_plus *) this) = &_IO_file_jumps;
-    _IO_file_init((_IO_FILE_plus*)this);
-  }
-
-  // NB: Unused.
-  int 
-  __basic_file<char>::overflow(int __c) 
-  { return _IO_file_overflow(this, __c); }
-
-  // NB: Unused.
-  int 
-  __basic_file<char>::underflow()  
-  { return _IO_file_underflow(this); }
-
-  // NB: Unused.
-  int 
-  __basic_file<char>::uflow()  
-  { return _IO_default_uflow(this); }
-
-  // NB: Unused.
-  int 
-  __basic_file<char>::pbackfail(int __c) 
-  { return _IO_default_pbackfail(this, __c); }
- 
-  streamsize 
-  __basic_file<char>::xsputn(const char* __s, streamsize __n)
-  { return _IO_file_xsputn(this, __s, __n); }
-
-  streamoff
-  __basic_file<char>::seekoff(streamoff __off, ios_base::seekdir __way, 
-			      ios_base::openmode __mode)
-  { return _IO_file_seekoff(this, __off, __way, __mode); }
-
-  streamoff
-  __basic_file<char>::seekpos(streamoff __pos, ios_base::openmode __mode)
-  { return _IO_file_seekoff(this, __pos, ios_base::beg, __mode); }
-
- // NB: Unused.
-  streambuf* 
-  __basic_file<char>::setbuf(char* __b, int __len)
-  { return (streambuf*) _IO_file_setbuf(this,__b, __len); }
-
- int 
-  __basic_file<char>::sync()
-  { return _IO_file_sync(this); }
-
-  // NB: Unused.
-  int 
-  __basic_file<char>::doallocate() 
-  { return _IO_file_doallocate(this); }
-
-  // __basic_file<wchar_t> definitions
-#ifdef _GLIBCPP_USE_WCHAR_T
-  __basic_file<wchar_t>::__basic_file(__c_lock* __lock)
-  {
-#ifdef _IO_MTSAFE_IO
-    _lock = __lock;
-#endif
-    // Don't set the orientation of the stream when initializing.
-    _IO_no_init(this, 0, 0, &_M_wfile, &_IO_wfile_jumps);
-    _IO_JUMPS((_IO_FILE_plus *) this) = &_IO_wfile_jumps;
-    _IO_file_init((_IO_FILE_plus*)this);
-
-    // In addition, need to allocate the buffer...
-    _IO_wdoallocbuf(this);
-    // Setup initial positions for this buffer...
-    //    if (!(_flags & _IO_NO_READS))
-    _IO_wsetg(this, _wide_data->_IO_buf_base, _wide_data->_IO_buf_base,
-	      _wide_data->_IO_buf_base);
-    //    if (!(_flags & _IO_NO_WRITES))
-    _IO_wsetp(this, _wide_data->_IO_buf_base, _wide_data->_IO_buf_base);
-    
-    // Setup codecvt bits...
-    _codecvt = &__c_libio_codecvt;
-    
-    // Do the same for narrow bits...
-    if (_IO_write_base == NULL)
-      {
-	_IO_doallocbuf(this);
-	//      if (!(_flags & _IO_NO_READS))
-	_IO_setg(this, _IO_buf_base, _IO_buf_base, _IO_buf_base);
-	//    if (!(_flags & _IO_NO_WRITES))
-	_IO_setp(this, _IO_buf_base, _IO_buf_base);
-      }
-  }
-
- int 
-  __basic_file<wchar_t>::overflow(int __c) 
-  { return _IO_wfile_overflow(this, __c); }
-
-  int 
-  __basic_file<wchar_t>::underflow()  
-  { return _IO_wfile_underflow(this); }
-
-  // NB: Unused.
-  int 
-  __basic_file<wchar_t>::uflow()  
-  { return _IO_wdefault_uflow(this); }
-
-  // NB: Unused.
-  int 
-  __basic_file<wchar_t>::pbackfail(int __c) 
-  { return _IO_wdefault_pbackfail(this, __c); }
-
-  streamsize 
-  __basic_file<wchar_t>::xsputn(const wchar_t* __s, streamsize __n)
-  { return _IO_wfile_xsputn(this, __s, __n); }
-  
-  streamoff
-  __basic_file<wchar_t>::seekoff(streamoff __off, ios_base::seekdir __way, 
-				 ios_base::openmode __mode)
-  { return _IO_wfile_seekoff(this, __off, __way, __mode); }
-
-  streamoff
-  __basic_file<wchar_t>::seekpos(streamoff __pos, ios_base::openmode __mode)
-  { return _IO_wfile_seekoff(this, __pos, ios_base::beg, __mode); }
-
-   streambuf* 
-  __basic_file<wchar_t>::setbuf(wchar_t* __b, int __len)
-  { return (streambuf*) _IO_wfile_setbuf(this,__b, __len); }
-
-   int 
-  __basic_file<wchar_t>::sync()
-  { return _IO_wfile_sync(this); }
-
-  int 
-  __basic_file<wchar_t>::doallocate() 
-  { return _IO_wfile_doallocate(this); }
-#endif
-
-  // Need to instantiate base class here for type-info bits, etc
-  template struct __basic_file_base<char>;
-  template class __basic_file<char>;
-#ifdef _GLIBCPP_USE_WCHAR_T
-  template struct __basic_file_base<wchar_t>;
-  template class __basic_file<wchar_t>;
-#endif
-}  // namespace std
-
-
-
-
-
-
-
diff --git a/libstdc++-v3/config/io/basic_file_libio.h b/libstdc++-v3/config/io/basic_file_libio.h
deleted file mode 100644
index 959ecf948d0..00000000000
--- a/libstdc++-v3/config/io/basic_file_libio.h
+++ /dev/null
@@ -1,528 +0,0 @@
-// Wrapper of C-language FILE struct -*- C++ -*-
-
-// Copyright (C) 2000, 2001, 2002, 2003 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
-//
-
-/** @file basic_file.h
- *  This is an internal header file, included by other library headers.
- *  You should not attempt to use it directly.
- */
-
-#ifndef _CPP_BASIC_FILE
-#define _CPP_BASIC_FILE 1
-
-#pragma GCC system_header
-
-#include <bits/c++config.h>
-#include <ios>
-#include <libioP.h>
-
-namespace std 
-{
-  // Ulrich is going to make some detailed comment here, explaining
-  // all this unpleasantness, providing detailed performance analysis
-  // as to why we have to do all this lame vtable hacking instead of a
-  // sane, function-based approach. This verbiage will provide a clear
-  // and detailed description of the whole object-layout,
-  // vtable-swapping, sordid history of this hack.
-  template<typename _CharT>
-    struct __basic_file_base: public __c_file
-    {
-      virtual 
-      ~__basic_file_base() { };
-
-      virtual int 
-      overflow(int __c = EOF) = 0;
-
-      virtual int 
-      underflow() = 0;
-
-      virtual int 
-      uflow() = 0;
-
-      virtual int 
-      pbackfail(int __c) = 0;
-
-      virtual streamsize 
-      xsputn(const _CharT* __s, streamsize __n) = 0;
-
-      virtual streamsize 
-      xsgetn(_CharT* __s, streamsize __n) = 0;
-
-      virtual streamoff
-      seekoff(streamoff __off, ios_base::seekdir __way,
-	      ios_base::openmode __mode = ios_base::in | ios_base::out) = 0;
-
-      virtual streamoff
-      seekpos(streamoff __pos, 
-	      ios_base::openmode __mode = ios_base::in | ios_base::out) = 0;
-
-      virtual streambuf* 
-      setbuf(_CharT* __b, int __len) = 0;
-
-      virtual int 
-      sync() = 0;
-
-      virtual int 
-      doallocate() = 0;
-
-      virtual streamsize 
-      sys_read(_CharT* __s, streamsize __n) = 0;
-
-      virtual streamsize 
-      sys_write(const _CharT* __s, streamsize __n) = 0;
-
-      virtual streamoff
-      sys_seek(streamoff __off, ios_base::seekdir __way) = 0;
-
-      virtual int 
-      sys_close() = 0;
-
-      virtual int 
-      sys_stat(void* __v) = 0;
-
-      virtual int 
-      showmanyc() = 0;
-
-      virtual void 
-      imbue(void* __v) = 0;
-    };
-
-  // Some of these member functions are based on libio/filebuf.cc.
-  // Also note that the order and number of virtual functions has to precisely
-  // match the order and number in the _IO_jump_t struct defined in libioP.h.
-  template<typename _CharT>
-    class __basic_file: public __basic_file_base<_CharT>
-    {
-# ifdef _GLIBCPP_USE_WCHAR_T
-      __c_wfile	_M_wfile;
-# endif
-
-    public:
-      __basic_file(__c_lock* __lock = 0);
-      
-      void 
-      _M_open_mode(ios_base::openmode __mode, int& __p_mode, int& __rw_mode, 
-		   char* __c_mode);
-      
-      // Equivalent to the normal fopen function.
-      __basic_file* 
-      open(const char* __name, ios_base::openmode __mode, int __prot = 0664);
-
-      // Used for opening the standard streams, cin, cout, cerr, clog,
-      // and their wide-stream equivalents. Instead of calling open, it
-      // just sets
-      //  - for libio:  __c_file->_fileno and the respective _flags bits
-      //  - for stdio:  _M_cfile = __file and some internal flags
-      // and returns.
-      __basic_file*
-      sys_open(__c_file* __file, ios_base::openmode __mode);
-
-      __basic_file*
-      sys_open(int __fd, ios_base::openmode __mode, bool __del);
-
-      _CharT
-      sys_getc();
-
-      _CharT
-      sys_ungetc(_CharT);
-
-      __basic_file* 
-      close(); 
-
-      bool 
-      is_open() const;
-
-      int 
-      fd();
-
-      // NB: Must match FILE specific jump table starting here--this
-      // means all virtual functions starting with the dtor must match,
-      // slot by slot. For glibc-based dystems, this means the _IO_FILE
-      // as the FILE struct and _IO_jump_t as the jump table.
-      virtual 
-      ~__basic_file(); // Takes the place of __finish.
-
-      virtual int 
-      overflow(int __c = EOF);
-
-      virtual int 
-      underflow();
-
-      virtual int 
-      uflow();
-
-      virtual int 
-      pbackfail(int __c);
-
-      // A complex "write" function that sets all of __c_file's
-      // pointers and associated data members correctly and manages its
-      // relation to the external byte sequence.
-      virtual streamsize 
-      xsputn(const _CharT* __s, streamsize __n);
-
-      // A complex "read" function that sets all of __c_file's
-      // pointers and associated data members correctly and manages its
-      // relation to the external byte sequence.
-      virtual streamsize 
-      xsgetn(_CharT* __s, streamsize __n);
-
-      // A complex "seekoff" function that sets all of __c_file's
-      // pointers and associated data members correctly and manages its
-      // relation to the external byte sequence.
-      virtual streamoff
-      seekoff(streamoff __off, ios_base::seekdir __way,
-	      ios_base::openmode __mode = ios_base::in | ios_base::out);
-
-      // A complex "seekpos" function that sets all of __c_file's
-      // pointers and associated data members correctly and manages its
-      // relation to the external byte sequence.
-      virtual streamoff
-      seekpos(streamoff __pos, 
-	      ios_base::openmode __mode = ios_base::in | ios_base::out);
-
-      virtual streambuf* 
-      setbuf(_CharT* __b, int __len);
-
-      virtual int 
-      sync();
-
-      virtual int 
-      doallocate();
-
-      // A simple read function for the external byte sequence, that
-      // does no mucking around with or setting of the pointers or flags
-      // in __c_file.
-      virtual streamsize 
-      sys_read(_CharT* __s, streamsize __n);
-
-      // A simple write function for the external byte sequence, that
-      // does no mucking around with or setting of the pointers or flags
-      // in __c_file.
-      virtual streamsize 
-      sys_write(const _CharT* __s, streamsize __n);
-
-      // A simple seek function for the external byte sequence, that
-      // does no mucking around with or setting of the pointers or flags
-      // in __c_file.
-      virtual streamoff
-      sys_seek(streamoff __off, ios_base::seekdir __way);
-
-      virtual int 
-      sys_close();
-
-      virtual int 
-      sys_stat(void* __v);
-
-      virtual int 
-      showmanyc();
-
-      virtual void 
-      imbue(void* __v);
-    };
-
-  // __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* __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>::sys_open(int __fd, ios_base::openmode __mode, 
-			       bool __del) 
-  {
-    __basic_file* __ret = NULL;
-    int __p_mode = 0;
-    int __rw_mode = 0;
-    char __c_mode[4];
-
-#if 0    
-#error copy from basic_file_stdio.h will make no sense
-    _M_open_mode(__mode, __p_mode, __rw_mode, __c_mode);
-    if (!this->is_open() && (_M_cfile = fdopen(__fd, __c_mode)))
-      {
-	// Iff __del is true, then close will fclose the fd.
-	_M_cfile_created = __del;
-
-	if (__fd == 0)
-	  setvbuf(_M_cfile, reinterpret_cast<char*>(NULL), _IONBF, 0);
-
-	__ret = this;
-      }
-#endif
-    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* __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() const { 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
-
-#endif	// _CPP_BASIC_FILE
diff --git a/libstdc++-v3/config/io/c_io_libio.h b/libstdc++-v3/config/io/c_io_libio.h
deleted file mode 100644
index 81c87315c2d..00000000000
--- a/libstdc++-v3/config/io/c_io_libio.h
+++ /dev/null
@@ -1,113 +0,0 @@
-// underlying io library  -*- C++ -*-
-
-// Copyright (C) 2000, 2001, 2002, 2003 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.
-
-// c_io_libio.h - Defines for using the GNU libio
-
-#ifndef _CPP_IO_LIBIO_H
-#define _CPP_IO_LIBIO_H 1
-
-#include <libio.h>
-
-namespace std 
-{
-// from fpos.h
-  typedef _IO_ssize_t 	streamsize; // Signed integral type
-  typedef _IO_ssize_t 	wstreamsize;
-
-#if defined(_G_IO_IO_FILE_VERSION) && _G_IO_IO_FILE_VERSION == 0x20001
-  typedef _IO_off64_t 	streamoff;
-  typedef _IO_fpos64_t 	__c_streampos;
-#else
-  typedef _IO_off_t 	streamoff;
-  typedef _IO_fpos_t 	__c_streampos;
-#endif
-
-#ifdef _GLIBCPP_USE_THREADS
-  typedef _IO_lock_t   __c_lock;
-#else
-  typedef int          __c_lock;
-#endif
-
-// from basic_file.h
-  typedef _IO_FILE 	__c_file;
-  typedef _IO_wide_data __c_wfile;
-
-#ifdef _GLIBCPP_USE_WCHAR_T
-  extern "C" _IO_codecvt __c_libio_codecvt;
-#endif 
-
-// from ios_base.h
-  struct __ios_flags
-  {
-    typedef short __int_type;
-
-    static const __int_type _S_boolalpha =	_IO_BAD_SEEN;
-    static const __int_type _S_dec =		_IO_DEC;
-    static const __int_type _S_fixed = 		_IO_FIXED;
-    static const __int_type _S_hex =		_IO_HEX;
-    static const __int_type _S_internal = 	_IO_INTERNAL;
-    static const __int_type _S_left =          	_IO_LEFT;
-    static const __int_type _S_oct =		_IO_OCT;
-    static const __int_type _S_right =		_IO_RIGHT;
-    static const __int_type _S_scientific =	_IO_SCIENTIFIC;
-    static const __int_type _S_showbase =      	_IO_SHOWBASE;
-    static const __int_type _S_showpoint =	_IO_SHOWPOINT;
-    static const __int_type _S_showpos =       	_IO_SHOWPOS;
-    static const __int_type _S_skipws =		_IO_SKIPWS;
-    static const __int_type _S_unitbuf =       	_IO_UNITBUF;
-    static const __int_type _S_uppercase =	_IO_UPPERCASE;
-    static const __int_type _S_adjustfield =	_IO_LEFT | _IO_RIGHT
-    						| _IO_INTERNAL;
-    static const __int_type _S_basefield =	_IO_DEC | _IO_OCT | _IO_HEX;
-    static const __int_type _S_floatfield =	_IO_SCIENTIFIC | _IO_FIXED;
-
-    // 27.4.2.1.3  Type ios_base::iostate
-    static const __int_type _S_badbit =		_IO_BAD_SEEN;
-    static const __int_type _S_eofbit =		_IO_EOF_SEEN;
-    static const __int_type _S_failbit =       	_IO_ERR_SEEN;
-
-    // 27.4.2.1.4  Type openmode
-    static const __int_type _S_app =		_IOS_APPEND;
-    static const __int_type _S_ate =		_IOS_ATEND;
-    static const __int_type _S_bin =		_IOS_BIN;
-    static const __int_type _S_in =		_IOS_INPUT;
-    static const __int_type _S_out =		_IOS_OUTPUT;
-    static const __int_type _S_trunc =		_IOS_TRUNC;
-  };
-}
-
-#endif // _CPP_IO_LIBIO_H
-
-
-
-
-
-
-
-
diff --git a/libstdc++-v3/config/io/c_io_libio_codecvt.c b/libstdc++-v3/config/io/c_io_libio_codecvt.c
deleted file mode 100644
index 38d8b55e0c2..00000000000
--- a/libstdc++-v3/config/io/c_io_libio_codecvt.c
+++ /dev/null
@@ -1,153 +0,0 @@
-/* Copyright (C) 2000 Free Software Foundation, Inc.
-   This file is part of the GNU IO 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, if you link this library with files
-   compiled with a GNU compiler to produce an executable, this does
-   not 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.  */
-
-/* Slightly modified from glibc/libio/iofwide.c */
-
-#include <libio.h>
-
-#ifdef _GLIBCPP_USE_WCHAR_T
-
-/* Prototypes of libio's codecvt functions.  */
-static enum __codecvt_result 
-do_out(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
-       const wchar_t *from_start, const wchar_t *from_end,
-       const wchar_t **from_stop, char *to_start, char *to_end, 
-       char **to_stop);
-
-static enum __codecvt_result 
-do_unshift(struct _IO_codecvt *codecvt, __c_mbstate_t *statep, char *to_start, 
-	   char *to_end, char **to_stop);
-
-static enum __codecvt_result 
-do_in(struct _IO_codecvt *codecvt, __c_mbstate_t *statep, 
-      const char *from_start, const char *from_end, const char **from_stop, 
-      wchar_t *to_start, wchar_t *to_end, wchar_t **to_stop);
-
-static int 
-do_encoding(struct _IO_codecvt *codecvt);
-
-static int 
-do_length(struct _IO_codecvt *codecvt, __c_mbstate_t *statep, 
-	  const char *from_start, const char *from_end, _IO_size_t max);
-
-static int 
-do_max_length(struct _IO_codecvt *codecvt);
-
-static int 
-do_always_noconv(struct _IO_codecvt *codecvt);
-
-
-/* The functions used in `codecvt' for libio are always the same.  */
-struct _IO_codecvt __c_libio_codecvt =
-{
-  .__codecvt_destr = NULL,		/* Destructor, never used.  */
-  .__codecvt_do_out = do_out,
-  .__codecvt_do_unshift = do_unshift,
-  .__codecvt_do_in = do_in,
-  .__codecvt_do_encoding = do_encoding,
-  .__codecvt_do_always_noconv = do_always_noconv,
-  .__codecvt_do_length = do_length,
-  .__codecvt_do_max_length = do_max_length
-};
-
-static enum __codecvt_result
-do_out(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
-       const wchar_t *from_start, const wchar_t *from_end,
-       const wchar_t **from_stop, char *to_start, char *to_end,
-       char **to_stop)
-{
-  enum __codecvt_result res = __codecvt_ok;
-
-  while (from_start < from_end)
-    {
-      if (to_start >= to_end)
-	{
-	  res = __codecvt_partial;
-	  break;
-	}
-      *to_start++ = (char) *from_start++;
-    }
-
-  *from_stop = from_start;
-  *to_stop = to_start;
-
-  return res;
-}
-
-
-static enum __codecvt_result
-do_unshift(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
-	   char *to_start, char *to_end, char **to_stop)
-{
-  *to_stop = to_start;
-  return __codecvt_ok;
-}
-
-
-static enum __codecvt_result
-do_in(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
-      const char *from_start, const char *from_end, const char **from_stop,
-      wchar_t *to_start, wchar_t *to_end, wchar_t **to_stop)
-{
-  enum __codecvt_result res = __codecvt_ok;
-
-  while (from_start < from_end)
-    {
-      if (to_start >= to_end)
-	{
-	  res = __codecvt_partial;
-	  break;
-	}
-      *to_start++ = (wchar_t) *from_start++;
-    }
-
-  *from_stop = from_start;
-  *to_stop = to_start;
-
-  return res;
-}
-
-
-static int
-do_encoding(struct _IO_codecvt *codecvt)
-{ return 1; }
-
-
-static int
-do_always_noconv(struct _IO_codecvt *codecvt)
-{ return 0; }
-
-
-static int
-do_length(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
-	  const char *from_start, const char *from_end, _IO_size_t max)
-{ return from_end - from_start; }
-
-
-static int
-do_max_length(struct _IO_codecvt *codecvt)
-{ return 1; }
-
-#endif /* _GLIBCPP_USE_WCHAR_T */