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diff --git a/libstdc++-v3/src/concept-inst.cc b/libstdc++-v3/src/concept-inst.cc
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+++ b/libstdc++-v3/src/concept-inst.cc
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+// Concept checking instantiations -*- C++ -*-
+
+// Copyright (C) 2001, 2002, 2003, 2009 Free Software Foundation
+//
+// 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/>.
+
+// The implementation of some of the more complex checks uses the simple
+// checks (good reuse of code), thereby requiring that the simple checks
+// be instantiated somewhere.  The simple checks use other simple checks,
+// and so on, until a couple hundred symbols all need instantiations.  We
+// explicitly instantiate the initial set of symbols; compiling this file
+// with -fimplicit-templates will take care of the rest for us.
+
+#include <bits/concept_check.h>
+
+#ifdef _GLIBCXX_CONCEPT_CHECKS
+
+#include <memory>
+#include <iterator>
+#include <ostream>
+
+#define _Instantiate(...) template void __function_requires< __VA_ARGS__ > ()
+
+namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+  template void __aux_require_boolean_expr<bool>(bool const&);
+
+  _Instantiate(_ConvertibleConcept<unsigned, unsigned> );
+
+  _Instantiate(_InputIteratorConcept<char*> );
+
+  _Instantiate(_InputIteratorConcept<char const*> );
+
+#ifdef _GLIBCXX_USE_WCHAR_T
+  _Instantiate(_InputIteratorConcept<wchar_t*> );
+
+  _Instantiate(_InputIteratorConcept<wchar_t const*> );
+
+  _Instantiate(_LessThanComparableConcept<wchar_t*> );
+#endif
+
+  _Instantiate(_LessThanComparableConcept<char*> );
+
+  _Instantiate(_LessThanComparableConcept<int> );
+
+  _Instantiate(_LessThanComparableConcept<long> );
+
+  _Instantiate(_LessThanComparableConcept<long long> );
+
+  _Instantiate(_LessThanComparableConcept<unsigned> );
+
+  _Instantiate(_OutputIteratorConcept<std::ostreambuf_iterator<
+    char, std::char_traits<char> >, char> );
+
+#ifdef _GLIBCXX_USE_WCHAR_T
+  _Instantiate(_OutputIteratorConcept<std::ostreambuf_iterator<
+    wchar_t, std::char_traits<wchar_t> >, wchar_t> );
+#endif
+
+  _Instantiate(_RandomAccessIteratorConcept<char*> );
+
+  _Instantiate(_RandomAccessIteratorConcept<char const*> );
+
+  _Instantiate(_RandomAccessIteratorConcept<
+    __normal_iterator<char const*, std::string> > );
+
+  _Instantiate(_RandomAccessIteratorConcept<
+    __normal_iterator<char*, std::string> > );
+
+#ifdef _GLIBCXX_USE_WCHAR_T
+  _Instantiate(_RandomAccessIteratorConcept<
+    __normal_iterator<wchar_t const*,
+    std::basic_string<wchar_t, std::char_traits<wchar_t>,
+                               std::allocator<wchar_t> > > > );
+
+  _Instantiate(_RandomAccessIteratorConcept<
+    __normal_iterator<wchar_t*,
+    std::basic_string<wchar_t, std::char_traits<wchar_t>,
+                               std::allocator<wchar_t> > > > );
+
+  _Instantiate(_RandomAccessIteratorConcept<wchar_t*> );
+
+  _Instantiate(_RandomAccessIteratorConcept<wchar_t const*> );
+#endif
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+#undef _Instantiate
+
+#endif