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diff --git a/gcc-4.9/libquadmath/quadmath_weak.h b/gcc-4.9/libquadmath/quadmath_weak.h
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+/* GCC Quad-Precision Math Library
+   Copyright (C) 2010, 2011 Free Software Foundation, Inc.
+   Written by Tobias Burnus  <burnus@net-b.de>
+
+This file is part of the libquadmath library.
+Libquadmath is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public
+License as published by the Free Software Foundation; either
+version 2 of the License, or (at your option) any later version.
+
+Libquadmath 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with libquadmath; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
+Boston, MA 02110-1301, USA.  */
+
+#ifndef QUADMATH_WEAK_H
+#define QUADMATH_WEAK_H
+
+#include "quadmath.h"
+
+#if SUPPORTS_WEAK
+# define __qmath2(name,name2,type) \
+  static __typeof(type) name __attribute__ ((__weakref__(#name2)));
+# define __qmath_(name) __qmath_ ## name
+#else
+# define __qmath2(name,name2,type)
+# define __qmath_(name) name
+#endif
+
+/* __qmath_foo is a weak reference to symbol foo.  */
+#define __qmath3(name) __qmath2(__qmath_ ## name,name,name)
+
+/* Prototypes for real functions.  */
+__qmath3 (acosq)
+__qmath3 (acoshq)
+__qmath3 (asinq)
+__qmath3 (asinhq)
+__qmath3 (atanq)
+__qmath3 (atanhq)
+__qmath3 (atan2q)
+__qmath3 (cbrtq)
+__qmath3 (ceilq)
+__qmath3 (copysignq)
+__qmath3 (coshq)
+__qmath3 (cosq)
+__qmath3 (erfq)
+__qmath3 (erfcq)
+__qmath3 (expq)
+__qmath3 (expm1q)
+__qmath3 (fabsq)
+__qmath3 (fdimq)
+__qmath3 (finiteq)
+__qmath3 (floorq)
+__qmath3 (fmaq)
+__qmath3 (fmaxq)
+__qmath3 (fminq)
+__qmath3 (fmodq)
+__qmath3 (frexpq)
+__qmath3 (hypotq)
+__qmath3 (ilogbq)
+__qmath3 (isinfq)
+__qmath3 (isnanq)
+__qmath3 (j0q)
+__qmath3 (j1q)
+__qmath3 (jnq)
+__qmath3 (ldexpq)
+__qmath3 (lgammaq)
+__qmath3 (llrintq)
+__qmath3 (llroundq)
+__qmath3 (logq)
+__qmath3 (log10q)
+__qmath3 (log1pq)
+__qmath3 (log2q)
+__qmath3 (lrintq)
+__qmath3 (lroundq)
+__qmath3 (modfq)
+__qmath3 (nanq)
+__qmath3 (nearbyintq)
+__qmath3 (nextafterq)
+__qmath3 (powq)
+__qmath3 (remainderq)
+__qmath3 (remquoq)
+__qmath3 (rintq)
+__qmath3 (roundq)
+__qmath3 (scalblnq)
+__qmath3 (scalbnq)
+__qmath3 (signbitq)
+__qmath3 (sincosq)
+__qmath3 (sinhq)
+__qmath3 (sinq)
+__qmath3 (sqrtq)
+__qmath3 (tanq)
+__qmath3 (tanhq)
+__qmath3 (tgammaq)
+__qmath3 (truncq)
+__qmath3 (y0q)
+__qmath3 (y1q)
+__qmath3 (ynq)
+
+
+/* Prototypes for complex functions.  */
+__qmath3 (cabsq)
+__qmath3 (cargq)
+__qmath3 (cimagq)
+__qmath3 (crealq)
+__qmath3 (cacosq)
+__qmath3 (cacoshq)
+__qmath3 (casinq)
+__qmath3 (casinhq)
+__qmath3 (catanq)
+__qmath3 (catanhq)
+__qmath3 (ccosq)
+__qmath3 (ccoshq)
+__qmath3 (cexpq)
+__qmath3 (cexpiq)
+__qmath3 (clogq)
+__qmath3 (clog10q)
+__qmath3 (conjq)
+__qmath3 (cpowq)
+__qmath3 (cprojq)
+__qmath3 (csinq)
+__qmath3 (csinhq)
+__qmath3 (csqrtq)
+__qmath3 (ctanq)
+__qmath3 (ctanhq)
+
+
+/* Prototypes for string <-> flt128 conversion functions.  */
+__qmath3 (strtoflt128)
+__qmath3 (quadmath_snprintf)
+
+#endif