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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3 files changed, 144 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/27_io/basic_streambuf/cons/2020.cc b/libstdc++-v3/testsuite/27_io/basic_streambuf/cons/2020.cc
new file mode 100644
index 000000000..eae9453a4
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_streambuf/cons/2020.cc
@@ -0,0 +1,54 @@
+// 1999-01-17 bkoz test functionality of basic_filebuf for char_type == char
+
+// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 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.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// 27.8.1.1 - Template class basic_filebuf 
+// NB: This file is for testing basic_filebuf with NO OTHER INCLUDES.
+
+#include <fstream>
+#include <testsuite_hooks.h>
+#include <testsuite_character.h>
+
+// libstdc++/2020
+// should be able to use custom char_type, custom traits type
+class gnu_sbuf: public std::basic_streambuf<__gnu_test::pod_ushort>
+{ };
+
+void test07()
+{
+  bool test __attribute__((unused)) = true;
+  
+  try
+    { gnu_sbuf obj; }
+  catch(std::exception& obj)
+    { 
+      test = false; 
+      VERIFY( test );
+    }
+}
+
+int main() 
+{
+  test07();
+  return 0;
+}
+
+
+
+// more surf!!!
diff --git a/libstdc++-v3/testsuite/27_io/basic_streambuf/cons/char/1.cc b/libstdc++-v3/testsuite/27_io/basic_streambuf/cons/char/1.cc
new file mode 100644
index 000000000..6308318f0
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_streambuf/cons/char/1.cc
@@ -0,0 +1,45 @@
+// 1999-10-11 bkoz
+
+// Copyright (C) 1999, 2000, 2001, 2002, 2003, 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.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+
+// 27.5.2 template class basic_streambuf
+
+#include <streambuf>
+#include <testsuite_hooks.h>
+#include <testsuite_io.h>
+
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+  __gnu_test::constraint_streambuf buf01;
+
+  // 27.5.2.1 basic_streambuf ctors
+  // default ctor initializes 
+  // - all pointer members to null pointers
+  // - locale to current global locale
+  VERIFY( buf01.check_pointers() );
+  VERIFY( buf01.getloc() == std::locale() );
+}
+
+int main() 
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/27_io/basic_streambuf/cons/wchar_t/1.cc b/libstdc++-v3/testsuite/27_io/basic_streambuf/cons/wchar_t/1.cc
new file mode 100644
index 000000000..0fb1f5cbd
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_streambuf/cons/wchar_t/1.cc
@@ -0,0 +1,45 @@
+// 1999-10-11 bkoz
+
+// Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 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.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+
+// 27.5.2 template class basic_streambuf
+
+#include <streambuf>
+#include <testsuite_hooks.h>
+#include <testsuite_io.h>
+
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+  __gnu_test::constraint_wstreambuf buf01;
+
+  // 27.5.2.1 basic_streambuf ctors
+  // default ctor initializes 
+  // - all pointer members to null pointers
+  // - locale to current global locale
+  VERIFY( buf01.check_pointers() );
+  VERIFY( buf01.getloc() == std::locale() );
+}
+
+int main() 
+{
+  test01();
+  return 0;
+}