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diff --git a/gnuradio-runtime/include/gr_top_block.h b/gnuradio-runtime/include/gr_top_block.h
deleted file mode 100644
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--- a/gnuradio-runtime/include/gr_top_block.h
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@@ -1,141 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2007-2009 Free Software Foundation, Inc.
- *
- * This file is part of GNU Radio
- *
- * GNU Radio 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.
- *
- * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street,
- * Boston, MA 02110-1301, USA.
- */
-
-#ifndef INCLUDED_GR_TOP_BLOCK_H
-#define INCLUDED_GR_TOP_BLOCK_H
-
-#include <gr_runtime_api.h>
-#include <gr_hier_block2.h>
-
-class gr_top_block_impl;
-
-GR_RUNTIME_API gr_top_block_sptr gr_make_top_block(const std::string &name);
-
-/*!
- *\brief Top-level hierarchical block representing a flowgraph
- * \ingroup container_blk
- *
- */
-class GR_RUNTIME_API gr_top_block : public gr_hier_block2
-{
-private:
-  friend GR_RUNTIME_API gr_top_block_sptr gr_make_top_block(const std::string &name);
-
-  gr_top_block_impl *d_impl;
-
-protected:
-  gr_top_block(const std::string &name);
-
-public:
-  ~gr_top_block();
-
-  /*!
-   * \brief The simple interface to running a flowgraph.
-   *
-   * Calls start() then wait().  Used to run a flowgraph that will stop
-   * on its own, or when another thread will call stop().
-   *
-   * \param max_noutput_items the maximum number of output items
-   * allowed for any block in the flowgraph. This passes through to
-   * the start function; see that function for more details.
-   */
-  void run(int max_noutput_items=100000000);
-
-  /*!
-   * Start the contained flowgraph.  Creates one or more threads to
-   * execute the flow graph.  Returns to the caller once the threads
-   * are created.  Calling start() on a top_block that is already
-   * started IS an error.
-   *
-   * \param max_noutput_items the maximum number of output items
-   * allowed for any block in the flowgraph; the noutput_items can
-   * always be less than this, but this will cap it as a maximum. Use
-   * this to adjust the maximum latency a flowgraph can exhibit.
-   */
-  void start(int max_noutput_items=100000000);
-
-  /*!
-   * Stop the running flowgraph.  Notifies each thread created by the
-   * scheduler to shutdown, then returns to caller. Calling stop() on
-   * a top_block that is already stopped IS NOT an error.
-   */
-  void stop();
-
-  /*!
-   * Wait for a flowgraph to complete.  Flowgraphs complete when
-   * either (1) all blocks indicate that they are done (typically only
-   * when using blocks.file_source, or blocks.head, or (2) after stop() has been
-   * called to request shutdown.  Calling wait on a top_block that is
-   * not running IS NOT an error (wait returns w/o blocking).
-   */
-  void wait();
-
-  /*!
-   * Lock a flowgraph in preparation for reconfiguration.  When an equal
-   * number of calls to lock() and unlock() have occurred, the flowgraph
-   * will be reconfigured.
-   *
-   * N.B. lock() and unlock() may not be called from a flowgraph thread
-   * (E.g., gr_block::work method) or deadlock will occur when
-   * reconfiguration happens.
-   */
-  virtual void lock();
-
-  /*!
-   * Unlock a flowgraph in preparation for reconfiguration.  When an equal
-   * number of calls to lock() and unlock() have occurred, the flowgraph
-   * will be reconfigured.
-   *
-   * N.B. lock() and unlock() may not be called from a flowgraph thread
-   * (E.g., gr_block::work method) or deadlock will occur when
-   * reconfiguration happens.
-   */
-  virtual void unlock();
-
-  /*!
-   * Returns a string that lists the edge connections in the flattened
-   * flowgraph.
-   */
-  std::string edge_list();
-
-  /*!
-   * Displays flattened flowgraph edges and block connectivity
-   */
-  void dump();
-
-  //! Get the number of max noutput_items in the flowgraph
-  int max_noutput_items();
-
-  //! Set the maximum number of noutput_items in the flowgraph
-  void set_max_noutput_items(int nmax);
-
-  gr_top_block_sptr to_top_block(); // Needed for Python type coercion
-
-  void setup_rpc();
-};
-
-inline gr_top_block_sptr cast_to_top_block_sptr(gr_basic_block_sptr block) {
-  return boost::dynamic_pointer_cast<gr_top_block, gr_basic_block>(block);
-}
-
-
-#endif /* INCLUDED_GR_TOP_BLOCK_H */