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diff --git a/binutils-2.25/gold/common.h b/binutils-2.25/gold/common.h
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+// common.h -- handle common symbols for gold   -*- C++ -*-
+
+// Copyright 2006, 2007, 2008, 2010 Free Software Foundation, Inc.
+// Written by Ian Lance Taylor <iant@google.com>.
+
+// This file is part of gold.
+
+// This program 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 of the License, or
+// (at your option) any later version.
+
+// This program 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 program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+// MA 02110-1301, USA.
+
+#ifndef GOLD_COMMON_H
+#define GOLD_COMMON_H
+
+#include "workqueue.h"
+
+namespace gold
+{
+
+class Symbol_table;
+
+// This task is used to allocate the common symbols.
+
+class Allocate_commons_task : public Task
+{
+ public:
+  Allocate_commons_task(Symbol_table* symtab, Layout* layout, Mapfile* mapfile,
+			Task_token* blocker)
+    : symtab_(symtab), layout_(layout), mapfile_(mapfile), blocker_(blocker)
+  { }
+
+  // The standard Task methods.
+
+  Task_token*
+  is_runnable();
+
+  void
+  locks(Task_locker*);
+
+  void
+  run(Workqueue*);
+
+  std::string
+  get_name() const
+  { return "Allocate_commons_task"; }
+
+ private:
+  Symbol_table* symtab_;
+  Layout* layout_;
+  Mapfile* mapfile_;
+  Task_token* blocker_;
+};
+
+} // End namespace gold.
+
+#endif // !defined(GOLD_COMMON_H)