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diff --git a/contrib/libstdc++/include/tr1/math.h b/contrib/libstdc++/include/tr1/math.h
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+++ b/contrib/libstdc++/include/tr1/math.h
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+// TR1 math.h -*- C++ -*-
+
+// Copyright (C) 2006 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// 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.
+
+/** @file tr1/math.h
+ *  This is a TR1 C++ Library header. 
+ */
+
+#ifndef _TR1_MATH_H
+#define _TR1_MATH_H 1
+
+#include <tr1/cmath>
+
+#if _GLIBCXX_USE_C99_MATH_TR1
+
+using std::tr1::acos;
+using std::tr1::acosh;
+using std::tr1::asin;
+using std::tr1::asinh;
+using std::tr1::atan;
+using std::tr1::atan2;
+using std::tr1::atanh;
+using std::tr1::cbrt;
+using std::tr1::ceil;
+using std::tr1::copysign;
+using std::tr1::cos;
+using std::tr1::cosh;
+using std::tr1::erf;
+using std::tr1::erfc;
+using std::tr1::exp;
+using std::tr1::exp2;
+using std::tr1::expm1;
+using std::tr1::fabs;
+using std::tr1::fdim;
+using std::tr1::floor;
+using std::tr1::fma;
+using std::tr1::fmax;
+using std::tr1::fmin;
+using std::tr1::fmod;
+using std::tr1::frexp;
+using std::tr1::hypot;
+using std::tr1::ilogb;
+using std::tr1::ldexp;
+using std::tr1::lgamma;
+using std::tr1::llrint;
+using std::tr1::llround;
+using std::tr1::log;
+using std::tr1::log10;
+using std::tr1::log1p;
+using std::tr1::log2;
+using std::tr1::logb;
+using std::tr1::lrint;
+using std::tr1::lround;
+using std::tr1::nearbyint;
+using std::tr1::nextafter;
+using std::tr1::nexttoward;
+using std::tr1::pow;
+using std::tr1::remainder;
+using std::tr1::remquo;
+using std::tr1::rint;
+using std::tr1::round;
+using std::tr1::scalbln;
+using std::tr1::scalbn;
+using std::tr1::sin;
+using std::tr1::sinh;
+using std::tr1::sqrt;
+using std::tr1::tan;
+using std::tr1::tanh;
+using std::tr1::tgamma;
+using std::tr1::trunc;
+
+#endif
+
+#endif