Removed whitespace and added dtools/bin/remove-whitespace as a tool to do this in the future.

The sed script was provided by Moritz Fischer.

56 files changed, 342 insertions, 342 deletions

diff --git a/gr-audio/CMakeLists.txt b/gr-audio/CMakeLists.txt
index f9975cf08..35fd7fc23 100644
--- a/gr-audio/CMakeLists.txt
+++ b/gr-audio/CMakeLists.txt
@@ -1,17 +1,17 @@
 # Copyright 2011 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,
diff --git a/gr-audio/doc/CMakeLists.txt b/gr-audio/doc/CMakeLists.txt
index f4e6c4a07..483554a0e 100644
--- a/gr-audio/doc/CMakeLists.txt
+++ b/gr-audio/doc/CMakeLists.txt
@@ -1,17 +1,17 @@
 # Copyright 2011 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,
diff --git a/gr-audio/doc/README.audio b/gr-audio/doc/README.audio
index ebd0fe5d7..754c849c8 100644
--- a/gr-audio/doc/README.audio
+++ b/gr-audio/doc/README.audio
@@ -14,7 +14,7 @@ based on the system it is run on. Import this package with:
 
 See the Doxygen documentation for details about the blocks available
 in this package. A quick listing of the details can be found in Python
-after importing by using: 
+after importing by using:
 
     help(audio)
 
diff --git a/gr-audio/examples/c++/CMakeLists.txt b/gr-audio/examples/c++/CMakeLists.txt
index 28bbc52a5..f0d45817c 100644
--- a/gr-audio/examples/c++/CMakeLists.txt
+++ b/gr-audio/examples/c++/CMakeLists.txt
@@ -1,17 +1,17 @@
 # Copyright 2011 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,
diff --git a/gr-audio/examples/c++/dial_tone.cc b/gr-audio/examples/c++/dial_tone.cc
index e4e3d8ceb..4cd0ff59c 100644
--- a/gr-audio/examples/c++/dial_tone.cc
+++ b/gr-audio/examples/c++/dial_tone.cc
@@ -1,18 +1,18 @@
 /*
  * Copyright 2011 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,
diff --git a/gr-audio/examples/python/audio_copy.py b/gr-audio/examples/python/audio_copy.py
index 3094c9f7a..946aae1c2 100755
--- a/gr-audio/examples/python/audio_copy.py
+++ b/gr-audio/examples/python/audio_copy.py
@@ -1,24 +1,24 @@
 #!/usr/bin/env python
 #
 # Copyright 2004,2005,2007 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.
-# 
+#
 
 from gnuradio import gr
 from gnuradio import audio
@@ -61,4 +61,4 @@ if __name__ == '__main__':
         my_top_block().run()
     except KeyboardInterrupt:
         pass
-    
+
diff --git a/gr-audio/examples/python/audio_fft.py b/gr-audio/examples/python/audio_fft.py
index 960e0f94d..519963da5 100755
--- a/gr-audio/examples/python/audio_fft.py
+++ b/gr-audio/examples/python/audio_fft.py
@@ -1,24 +1,24 @@
 #!/usr/bin/env python
 #
 # Copyright 2004,2005,2007 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.
-# 
+#
 
 from gnuradio import gr, gru, audio
 from gnuradio import eng_notation
@@ -34,7 +34,7 @@ class app_top_block(stdgui2.std_top_block):
 
         self.frame = frame
         self.panel = panel
-        
+
         parser = OptionParser(option_class=eng_option)
         parser.add_option("-W", "--waterfall", action="store_true", default=False,
                           help="Enable waterfall display")
@@ -45,15 +45,15 @@ class app_top_block(stdgui2.std_top_block):
         parser.add_option("-r", "--sample-rate", type="eng_float", default=48000,
                           help="set sample rate to RATE (48000)")
 
-        (options, args) = parser.parse_args()   
+        (options, args) = parser.parse_args()
 	sample_rate = int(options.sample_rate)
-        
+
 	if len(args) != 0:
             parser.print_help()
             sys.exit(1)
 
         self.show_debug_info = True
-        
+
         # build the graph
         if options.waterfall:
             self.scope = \
@@ -79,9 +79,9 @@ class app_top_block(stdgui2.std_top_block):
 
         def _form_set_freq(kv):
             return self.set_freq(kv['freq'])
-            
+
         vbox.Add(self.scope.win, 10, wx.EXPAND)
-        
+
 	#self._build_subpanel(vbox)
 
     def _build_subpanel(self, vbox_arg):
@@ -89,7 +89,7 @@ class app_top_block(stdgui2.std_top_block):
 
         # FIXME figure out how to have this be a subpanel that is always
         # created, but has its visibility controlled by foo.Show(True/False)
-        
+
         def _form_set_decim(kv):
             return self.set_decim(kv['decim'])
 
@@ -129,7 +129,7 @@ class app_top_block(stdgui2.std_top_block):
         hbox.Add((5,0), 0)
         vbox.Add(hbox, 0, wx.EXPAND)
 
-        
+
 def main ():
     app = stdgui2.stdapp(app_top_block, "Audio FFT", nstatus=1)
     app.MainLoop()
diff --git a/gr-audio/examples/python/audio_play.py b/gr-audio/examples/python/audio_play.py
index f9520c7cf..465590f69 100755
--- a/gr-audio/examples/python/audio_play.py
+++ b/gr-audio/examples/python/audio_play.py
@@ -1,24 +1,24 @@
 #!/usr/bin/env python
 #
 # Copyright 2004,2005,2007 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.
-# 
+#
 
 from gnuradio import gr
 from gnuradio import audio
diff --git a/gr-audio/examples/python/audio_to_file.py b/gr-audio/examples/python/audio_to_file.py
index 0d54f7bd2..3f7a4f8d1 100755
--- a/gr-audio/examples/python/audio_to_file.py
+++ b/gr-audio/examples/python/audio_to_file.py
@@ -1,24 +1,24 @@
 #!/usr/bin/env python
 #
 # Copyright 2004,2007 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.
-# 
+#
 
 from gnuradio import gr
 from gnuradio import audio
@@ -38,7 +38,7 @@ class my_top_block(gr.top_block):
                           help="set sample rate to RATE (48000)")
         parser.add_option("-N", "--nsamples", type="eng_float", default=None,
                           help="number of samples to collect [default=+inf]")
-     
+
         (options, args) = parser.parse_args ()
         if len(args) != 1:
             parser.print_help()
diff --git a/gr-audio/examples/python/dial_tone.py b/gr-audio/examples/python/dial_tone.py
index 65c5e50b2..5661d13d4 100755
--- a/gr-audio/examples/python/dial_tone.py
+++ b/gr-audio/examples/python/dial_tone.py
@@ -1,24 +1,24 @@
 #!/usr/bin/env python
 #
 # Copyright 2004,2005,2007 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.
-# 
+#
 
 from gnuradio import gr
 from gnuradio import audio
diff --git a/gr-audio/examples/python/dial_tone_daemon.py b/gr-audio/examples/python/dial_tone_daemon.py
index d30d0e117..b25baebee 100755
--- a/gr-audio/examples/python/dial_tone_daemon.py
+++ b/gr-audio/examples/python/dial_tone_daemon.py
@@ -1,24 +1,24 @@
 #!/usr/bin/env python
 #
 # Copyright 2004,2005,2007,2008 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.
-# 
+#
 
 from gnuradio import gr, gru
 from gnuradio import audio
diff --git a/gr-audio/examples/python/dial_tone_wav.py b/gr-audio/examples/python/dial_tone_wav.py
index 6e87b2a48..c06af55b7 100755
--- a/gr-audio/examples/python/dial_tone_wav.py
+++ b/gr-audio/examples/python/dial_tone_wav.py
@@ -1,24 +1,24 @@
 #!/usr/bin/env python
 #
 # Copyright 2004,2005,2007,2008 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.
-# 
+#
 
 # GNU Radio example program to record a dial tone to a WAV file
 
diff --git a/gr-audio/examples/python/mono_tone.py b/gr-audio/examples/python/mono_tone.py
index 869c2e5ff..bce486e4a 100755
--- a/gr-audio/examples/python/mono_tone.py
+++ b/gr-audio/examples/python/mono_tone.py
@@ -1,24 +1,24 @@
 #!/usr/bin/env python
 #
 # Copyright 2004,2005,2007 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.
-# 
+#
 
 from gnuradio import gr
 from gnuradio import audio
@@ -55,7 +55,7 @@ class my_top_block(gr.top_block):
         dst = audio.sink (sample_rate,
                           options.audio_output,
                           options.ok_to_block)
-            
+
         self.connect (src0, (dst, 0))
 
 
diff --git a/gr-audio/examples/python/multi_tone.py b/gr-audio/examples/python/multi_tone.py
index 7d47dd5d5..00c213b63 100755
--- a/gr-audio/examples/python/multi_tone.py
+++ b/gr-audio/examples/python/multi_tone.py
@@ -1,24 +1,24 @@
 #!/usr/bin/env python
 #
 # Copyright 2004,2006,2007 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.
-# 
+#
 
 from gnuradio import gr
 from gnuradio import audio
@@ -72,7 +72,7 @@ class my_top_block(gr.top_block):
         dst = audio.sink (sample_rate,
                           options.audio_output,
                           options.ok_to_block)
-    
+
         max_chan = dst.input_signature().max_streams()
         if (max_chan == -1) or (max_chan > limit_channels):
             max_chan = limit_channels
diff --git a/gr-audio/examples/python/noise.py b/gr-audio/examples/python/noise.py
index 75f741082..12eee1906 100755
--- a/gr-audio/examples/python/noise.py
+++ b/gr-audio/examples/python/noise.py
@@ -1,24 +1,24 @@
 #!/usr/bin/env python
 #
 # Copyright 2007 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.
-# 
+#
 
 from gnuradio import gr
 from gnuradio import audio
diff --git a/gr-audio/examples/python/spectrum_inversion.py b/gr-audio/examples/python/spectrum_inversion.py
index 021e23f2d..e152430cd 100755
--- a/gr-audio/examples/python/spectrum_inversion.py
+++ b/gr-audio/examples/python/spectrum_inversion.py
@@ -1,19 +1,19 @@
 #!/usr/bin/env python
 #
 # Copyright 2004,2005,2007 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,
diff --git a/gr-audio/examples/python/test_resampler.py b/gr-audio/examples/python/test_resampler.py
index 4644c5e2f..db7f79fba 100755
--- a/gr-audio/examples/python/test_resampler.py
+++ b/gr-audio/examples/python/test_resampler.py
@@ -1,24 +1,24 @@
 #!/usr/bin/env python
 #
 # Copyright 2004,2005,2007 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.
-# 
+#
 
 from gnuradio import gr, gru, blks2
 from gnuradio import audio
diff --git a/gr-audio/grc/CMakeLists.txt b/gr-audio/grc/CMakeLists.txt
index a077f7fb4..35c540ad3 100644
--- a/gr-audio/grc/CMakeLists.txt
+++ b/gr-audio/grc/CMakeLists.txt
@@ -1,17 +1,17 @@
 # Copyright 2011 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,
diff --git a/gr-audio/include/CMakeLists.txt b/gr-audio/include/CMakeLists.txt
index 6db55e92c..a41506373 100644
--- a/gr-audio/include/CMakeLists.txt
+++ b/gr-audio/include/CMakeLists.txt
@@ -1,17 +1,17 @@
 # Copyright 2011 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,
diff --git a/gr-audio/include/gr_audio_api.h b/gr-audio/include/gr_audio_api.h
index 65782d308..2ddd0fec6 100644
--- a/gr-audio/include/gr_audio_api.h
+++ b/gr-audio/include/gr_audio_api.h
@@ -1,18 +1,18 @@
 /*
  * Copyright 2011 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,
diff --git a/gr-audio/include/gr_audio_sink.h b/gr-audio/include/gr_audio_sink.h
index 7a1caaf80..c2c8bdc30 100644
--- a/gr-audio/include/gr_audio_sink.h
+++ b/gr-audio/include/gr_audio_sink.h
@@ -1,18 +1,18 @@
 /*
  * Copyright 2011 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,
diff --git a/gr-audio/include/gr_audio_source.h b/gr-audio/include/gr_audio_source.h
index 8fe2b9b47..0e46ab198 100644
--- a/gr-audio/include/gr_audio_source.h
+++ b/gr-audio/include/gr_audio_source.h
@@ -1,18 +1,18 @@
 /*
  * Copyright 2011 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,
diff --git a/gr-audio/lib/CMakeLists.txt b/gr-audio/lib/CMakeLists.txt
index 28188a77b..7e0252a8b 100644
--- a/gr-audio/lib/CMakeLists.txt
+++ b/gr-audio/lib/CMakeLists.txt
@@ -1,17 +1,17 @@
 # Copyright 2011 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,
diff --git a/gr-audio/lib/alsa/audio_alsa_sink.cc b/gr-audio/lib/alsa/audio_alsa_sink.cc
index 0bda42470..687f24bde 100644
--- a/gr-audio/lib/alsa/audio_alsa_sink.cc
+++ b/gr-audio/lib/alsa/audio_alsa_sink.cc
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2004-2011 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,
@@ -51,7 +51,7 @@ static snd_pcm_format_t acceptable_formats[] = {
 #define NELEMS(x) (sizeof(x)/sizeof(x[0]))
 
 
-static std::string 
+static std::string
 default_device_name ()
 {
   return gr_prefs::singleton()->get_string("audio_alsa", "default_output_device", "hw:0,0");
@@ -131,7 +131,7 @@ audio_alsa_sink::audio_alsa_sink (int sampling_rate,
   }
   set_input_signature (gr_make_io_signature (min_chan, max_chan,
 					     sizeof (float)));
-  
+
   // fill in portions of the d_hw_params that we know now...
 
   // Specify the access methods we implement
@@ -156,14 +156,14 @@ audio_alsa_sink::audio_alsa_sink (int sampling_rate,
 					"audio_alsa_sink",
 					CHATTY_DEBUG))
     throw std::runtime_error ("audio_alsa_sink");
-  
+
 
   // sampling rate
   unsigned int orig_sampling_rate = d_sampling_rate;
   if ((error = snd_pcm_hw_params_set_rate_near (d_pcm_handle, d_hw_params,
 						&d_sampling_rate, 0)) < 0)
     bail ("failed to set rate near", error);
-  
+
   if (orig_sampling_rate != d_sampling_rate){
     fprintf (stderr, "audio_alsa_sink[%s]: unable to support sampling rate %d\n",
 	     snd_pcm_name (d_pcm_handle), orig_sampling_rate);
@@ -204,7 +204,7 @@ audio_alsa_sink::audio_alsa_sink (int sampling_rate,
 					     &d_period_size, &dir);
   if (error < 0)
     bail ("get_period_size failed", error);
-  
+
   set_output_multiple (d_period_size);
 }
 
@@ -226,11 +226,11 @@ audio_alsa_sink::check_topology (int ninputs, int noutputs)
     return true;  // If stream is running, don't change any parameters
   else if(state == SND_PCM_STATE_XRUN )
     snd_pcm_prepare ( d_pcm_handle ); // Prepare stream on underrun, and we can set parameters;
-  
+
   bool special_case = nchan == 1 && d_special_case_mono_to_stereo;
   if (special_case)
     nchan = 2;
-  
+
   err = snd_pcm_hw_params_set_channels (d_pcm_handle, d_hw_params, nchan);
 
   if (err < 0){
@@ -249,7 +249,7 @@ audio_alsa_sink::check_topology (int ninputs, int noutputs)
   err = snd_pcm_sw_params_current (d_pcm_handle, d_sw_params);
   if (err < 0)
     bail ("snd_pcm_sw_params_current", err);
-  
+
   // Tell the PCM device to wait to start until we've filled
   // it's buffers half way full.  This helps avoid audio underruns.
 
@@ -327,7 +327,7 @@ audio_alsa_sink::work_s16 (int noutput_items,
 {
   typedef gr_int16	sample_t;	// the type of samples we're creating
   static const float scale_factor = std::pow(2.0f, 16-1) - 1;
-  
+
   unsigned int nchan = input_items.size ();
   const float **in = (const float **) &input_items[0];
   sample_t *buf = (sample_t *) d_buffer;
@@ -351,7 +351,7 @@ audio_alsa_sink::work_s16 (int noutput_items,
     for (unsigned int chan = 0; chan < nchan; chan++)
       in[chan] += d_period_size;
 
-    if (!write_buffer (buf, d_period_size, sizeof_frame))  
+    if (!write_buffer (buf, d_period_size, sizeof_frame))
       return -1;	// No fixing this problem.  Say we're done.
   }
 
@@ -369,7 +369,7 @@ audio_alsa_sink::work_s32 (int noutput_items,
 {
   typedef gr_int32	sample_t;	// the type of samples we're creating
   static const float scale_factor = std::pow(2.0f, 32-1) - 1;
-  
+
   unsigned int nchan = input_items.size ();
   const float **in = (const float **) &input_items[0];
   sample_t *buf = (sample_t *) d_buffer;
@@ -393,7 +393,7 @@ audio_alsa_sink::work_s32 (int noutput_items,
     for (unsigned int chan = 0; chan < nchan; chan++)
       in[chan] += d_period_size;
 
-    if (!write_buffer (buf, d_period_size, sizeof_frame))  
+    if (!write_buffer (buf, d_period_size, sizeof_frame))
       return -1;	// No fixing this problem.  Say we're done.
   }
 
@@ -411,7 +411,7 @@ audio_alsa_sink::work_s16_1x2 (int noutput_items,
 {
   typedef gr_int16	sample_t;	// the type of samples we're creating
   static const float scale_factor = std::pow(2.0f, 16-1) - 1;
-  
+
   assert (input_items.size () == 1);
   static const unsigned int nchan = 2;
   const float **in = (const float **) &input_items[0];
@@ -435,7 +435,7 @@ audio_alsa_sink::work_s16_1x2 (int noutput_items,
     // update src pointers
     in[0] += d_period_size;
 
-    if (!write_buffer (buf, d_period_size, sizeof_frame))  
+    if (!write_buffer (buf, d_period_size, sizeof_frame))
       return -1;	// No fixing this problem.  Say we're done.
   }
 
@@ -453,7 +453,7 @@ audio_alsa_sink::work_s32_1x2 (int noutput_items,
 {
   typedef gr_int32	sample_t;	// the type of samples we're creating
   static const float scale_factor = std::pow(2.0f, 32-1) - 1;
-  
+
   assert (input_items.size () == 1);
   static unsigned int nchan = 2;
   const float **in = (const float **) &input_items[0];
@@ -477,7 +477,7 @@ audio_alsa_sink::work_s32_1x2 (int noutput_items,
     // update src pointers
     in[0] += d_period_size;
 
-    if (!write_buffer (buf, d_period_size, sizeof_frame))  
+    if (!write_buffer (buf, d_period_size, sizeof_frame))
       return -1;	// No fixing this problem.  Say we're done.
   }
 
@@ -496,7 +496,7 @@ audio_alsa_sink::write_buffer (const void *vbuffer,
     {
       if (d_ok_to_block == true)
 	continue;		// try again
-      
+
       break;
     }
 
diff --git a/gr-audio/lib/alsa/audio_alsa_sink.h b/gr-audio/lib/alsa/audio_alsa_sink.h
index b33b84644..d456e53de 100644
--- a/gr-audio/lib/alsa/audio_alsa_sink.h
+++ b/gr-audio/lib/alsa/audio_alsa_sink.h
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2004-2011 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,
@@ -74,7 +74,7 @@ public:
 		   bool ok_to_block);
 
   ~audio_alsa_sink ();
-  
+
   bool check_topology (int ninputs, int noutputs);
 
   int work (int noutput_items,
diff --git a/gr-audio/lib/alsa/audio_alsa_source.cc b/gr-audio/lib/alsa/audio_alsa_source.cc
index a90552ff5..9fdf80b43 100644
--- a/gr-audio/lib/alsa/audio_alsa_source.cc
+++ b/gr-audio/lib/alsa/audio_alsa_source.cc
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2004-2011 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,
@@ -50,7 +50,7 @@ static snd_pcm_format_t acceptable_formats[] = {
 #define NELEMS(x) (sizeof(x)/sizeof(x[0]))
 
 
-static std::string 
+static std::string
 default_device_name ()
 {
   return gr_prefs::singleton()->get_string("audio_alsa", "default_input_device", "hw:0,0");
@@ -127,10 +127,10 @@ audio_alsa_source::audio_alsa_source (int sampling_rate,
     min_chan = 1;
     d_special_case_stereo_to_mono = true;
   }
-  
+
   set_output_signature (gr_make_io_signature (min_chan, max_chan,
 					      sizeof (float)));
-  
+
   // fill in portions of the d_hw_params that we know now...
 
   // Specify the access methods we implement
@@ -155,14 +155,14 @@ audio_alsa_source::audio_alsa_source (int sampling_rate,
 					"audio_alsa_source",
 					CHATTY_DEBUG))
     throw std::runtime_error ("audio_alsa_source");
-  
+
 
   // sampling rate
   unsigned int orig_sampling_rate = d_sampling_rate;
   if ((error = snd_pcm_hw_params_set_rate_near (d_pcm_handle, d_hw_params,
 						&d_sampling_rate, 0)) < 0)
     bail ("failed to set rate near", error);
-  
+
   if (orig_sampling_rate != d_sampling_rate){
     fprintf (stderr, "audio_alsa_source[%s]: unable to support sampling rate %d\n",
 	     snd_pcm_name (d_pcm_handle), orig_sampling_rate);
@@ -204,7 +204,7 @@ audio_alsa_source::audio_alsa_source (int sampling_rate,
 					     &d_period_size, &dir);
   if (error < 0)
     bail ("get_period_size failed", error);
-  
+
   set_output_multiple (d_period_size);
 }
 
@@ -309,7 +309,7 @@ audio_alsa_source::work_s16 (int noutput_items,
 {
   typedef gr_int16	sample_t;	// the type of samples we're creating
   static const float scale_factor = 1.0 / std::pow(2.0f, 16-1);
-  
+
   unsigned int nchan = output_items.size ();
   float **out = (float **) &output_items[0];
   sample_t *buf = (sample_t *) d_buffer;
@@ -321,7 +321,7 @@ audio_alsa_source::work_s16 (int noutput_items,
   // To minimize latency, return at most a single period's worth of samples.
   // [We could also read the first one in a blocking mode and subsequent
   //  ones in non-blocking mode, but we'll leave that for later (or never).]
-  
+
   if (!read_buffer (buf, d_period_size, sizeof_frame))
     return -1;		// No fixing this problem.  Say we're done.
 
@@ -347,7 +347,7 @@ audio_alsa_source::work_s16_2x1 (int noutput_items,
 {
   typedef gr_int16	sample_t;	// the type of samples we're creating
   static const float scale_factor = 1.0 / std::pow(2.0f, 16-1);
-  
+
   float **out = (float **) &output_items[0];
   sample_t *buf = (sample_t *) d_buffer;
   int bi;
@@ -360,7 +360,7 @@ audio_alsa_source::work_s16_2x1 (int noutput_items,
   // To minimize latency, return at most a single period's worth of samples.
   // [We could also read the first one in a blocking mode and subsequent
   //  ones in non-blocking mode, but we'll leave that for later (or never).]
-  
+
   if (!read_buffer (buf, d_period_size, sizeof_frame))
     return -1;		// No fixing this problem.  Say we're done.
 
@@ -385,7 +385,7 @@ audio_alsa_source::work_s32 (int noutput_items,
 {
   typedef gr_int32	sample_t;	// the type of samples we're creating
   static const float scale_factor = 1.0 / std::pow(2.0f, 32-1);
-  
+
   unsigned int nchan = output_items.size ();
   float **out = (float **) &output_items[0];
   sample_t *buf = (sample_t *) d_buffer;
@@ -397,7 +397,7 @@ audio_alsa_source::work_s32 (int noutput_items,
   // To minimize latency, return at most a single period's worth of samples.
   // [We could also read the first one in a blocking mode and subsequent
   //  ones in non-blocking mode, but we'll leave that for later (or never).]
-  
+
   if (!read_buffer (buf, d_period_size, sizeof_frame))
     return -1;		// No fixing this problem.  Say we're done.
 
@@ -423,7 +423,7 @@ audio_alsa_source::work_s32_2x1 (int noutput_items,
 {
   typedef gr_int32	sample_t;	// the type of samples we're creating
   static const float scale_factor = 1.0 / std::pow(2.0f, 32-1);
-  
+
   float **out = (float **) &output_items[0];
   sample_t *buf = (sample_t *) d_buffer;
   int bi;
@@ -436,7 +436,7 @@ audio_alsa_source::work_s32_2x1 (int noutput_items,
   // To minimize latency, return at most a single period's worth of samples.
   // [We could also read the first one in a blocking mode and subsequent
   //  ones in non-blocking mode, but we'll leave that for later (or never).]
-  
+
   if (!read_buffer (buf, d_period_size, sizeof_frame))
     return -1;		// No fixing this problem.  Say we're done.
 
diff --git a/gr-audio/lib/alsa/audio_alsa_source.h b/gr-audio/lib/alsa/audio_alsa_source.h
index 142ae711a..320d49bd2 100644
--- a/gr-audio/lib/alsa/audio_alsa_source.h
+++ b/gr-audio/lib/alsa/audio_alsa_source.h
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2004-2011 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,
@@ -77,7 +77,7 @@ public:
 		     bool ok_to_block);
 
   ~audio_alsa_source ();
-  
+
   bool check_topology (int ninputs, int noutputs);
 
   int work (int noutput_items,
diff --git a/gr-audio/lib/alsa/gri_alsa.cc b/gr-audio/lib/alsa/gri_alsa.cc
index d9fda0f7d..7bae0937d 100644
--- a/gr-audio/lib/alsa/gri_alsa.cc
+++ b/gr-audio/lib/alsa/gri_alsa.cc
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2004 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,
@@ -87,7 +87,7 @@ void
 gri_alsa_dump_hw_params (snd_pcm_t *pcm, snd_pcm_hw_params_t *hwparams, FILE *fp)
 {
   fprintf (fp, "PCM name: %s\n", snd_pcm_name (pcm));
-  
+
   fprintf (fp, "Access types:\n");
   for (unsigned i = 0; i < NELEMS (access_types); i++){
     snd_pcm_access_t	at = access_types[i];
@@ -168,7 +168,7 @@ gri_alsa_pick_acceptable_format (snd_pcm_t *pcm,
       return true;
     }
   }
-  
+
   fprintf (stderr, "%s[%s]: failed to find acceptable format",
 	   error_msg_tag, snd_pcm_name (pcm));
   return false;
diff --git a/gr-audio/lib/alsa/gri_alsa.h b/gr-audio/lib/alsa/gri_alsa.h
index 3d72fd950..9c64e2c36 100644
--- a/gr-audio/lib/alsa/gri_alsa.h
+++ b/gr-audio/lib/alsa/gri_alsa.h
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2004 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,
@@ -26,7 +26,7 @@
 #include <stdio.h>
 #include <alsa/asoundlib.h>
 
-void 
+void
 gri_alsa_dump_hw_params (snd_pcm_t *pcm,
 			 snd_pcm_hw_params_t *hwparams,
 			 FILE *fp);
diff --git a/gr-audio/lib/gr_audio_registry.cc b/gr-audio/lib/gr_audio_registry.cc
index da4b16b35..e07bf844a 100644
--- a/gr-audio/lib/gr_audio_registry.cc
+++ b/gr-audio/lib/gr_audio_registry.cc
@@ -1,18 +1,18 @@
 /*
  * Copyright 2011 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,
diff --git a/gr-audio/lib/gr_audio_registry.h b/gr-audio/lib/gr_audio_registry.h
index ec341e95e..c40e15657 100644
--- a/gr-audio/lib/gr_audio_registry.h
+++ b/gr-audio/lib/gr_audio_registry.h
@@ -1,18 +1,18 @@
 /*
  * Copyright 2011 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,
diff --git a/gr-audio/lib/jack/audio_jack_sink.cc b/gr-audio/lib/jack/audio_jack_sink.cc
index f06e77bd5..9caabe8e2 100644
--- a/gr-audio/lib/jack/audio_jack_sink.cc
+++ b/gr-audio/lib/jack/audio_jack_sink.cc
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2005-2011 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,
@@ -50,7 +50,7 @@ typedef jack_default_audio_sample_t sample_t;
 // TODO: make it to match at least the quantity of items passed by work()
 static const unsigned int N_BUFFERS = 16;
 
-static std::string 
+static std::string
 default_device_name ()
 {
   return gr_prefs::singleton()->get_string("audio_jack", "default_output_device", "gr_sink");
@@ -77,7 +77,7 @@ jack_sink_process (jack_nframes_t nframes, void *arg)
   // Tell the sink thread there is room in the ringbuffer.
   // If it is already running, the lock will not be available.
   // We can't wait here in the process() thread, but we don't
-  // need to signal in that case, because the sink thread will 
+  // need to signal in that case, because the sink thread will
   // check for room availability.
 
   if (pthread_mutex_trylock (&self->d_jack_process_lock) == 0) {
@@ -108,7 +108,7 @@ audio_jack_sink::audio_jack_sink (int sampling_rate,
   pthread_cond_init(&d_ringbuffer_ready, NULL);;
   pthread_mutex_init(&d_jack_process_lock, NULL);
 #endif
-  
+
   // try to become a client of the JACK server
   jack_options_t options = JackNullOption;
   jack_status_t status;
@@ -130,9 +130,9 @@ audio_jack_sink::audio_jack_sink (int sampling_rate,
   // just decides to stop calling us.
 
   //jack_on_shutdown (d_jack_client, &jack_shutdown, (void*)this);
- 
-  d_jack_output_port = 
-    jack_port_register (d_jack_client, "out", 
+
+  d_jack_output_port =
+    jack_port_register (d_jack_client, "out",
 			JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0);
 
 
@@ -165,7 +165,7 @@ audio_jack_sink::check_topology (int ninputs, int noutputs)
   if (ninputs != 1)
     return false;
 
-  // tell the JACK server that we are ready to roll 
+  // tell the JACK server that we are ready to roll
   if (jack_activate (d_jack_client))
     throw std::runtime_error ("audio_jack_sink");
 
@@ -191,7 +191,7 @@ audio_jack_sink::work (int noutput_items,
     unsigned int write_space;	// bytes
 
 #ifdef NO_PTHREAD
-    while ((write_space=jack_ringbuffer_write_space (d_ringbuffer)) < 
+    while ((write_space=jack_ringbuffer_write_space (d_ringbuffer)) <
 	   d_jack_buffer_size*sizeof(sample_t)) {
       usleep(1000000*((d_jack_buffer_size-write_space/sizeof(sample_t))/d_sampling_rate));
     }
@@ -199,7 +199,7 @@ audio_jack_sink::work (int noutput_items,
     // JACK actually requires POSIX
 
     pthread_mutex_lock (&d_jack_process_lock);
-    while ((write_space=jack_ringbuffer_write_space (d_ringbuffer)) < 
+    while ((write_space=jack_ringbuffer_write_space (d_ringbuffer)) <
 	   d_jack_buffer_size*sizeof(sample_t)) {
 
       // wait until jack_sink_process() signals more room
diff --git a/gr-audio/lib/jack/audio_jack_sink.h b/gr-audio/lib/jack/audio_jack_sink.h
index 5500b3641..8cc343937 100644
--- a/gr-audio/lib/jack/audio_jack_sink.h
+++ b/gr-audio/lib/jack/audio_jack_sink.h
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2005-2011 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,
@@ -69,7 +69,7 @@ public:
   audio_jack_sink (int sampling_rate, const std::string device_name, bool ok_to_block);
 
   ~audio_jack_sink ();
-  
+
   bool check_topology (int ninputs, int noutputs);
 
   int work (int noutput_items,
diff --git a/gr-audio/lib/jack/audio_jack_source.cc b/gr-audio/lib/jack/audio_jack_source.cc
index dcd41c3ac..137fd538e 100644
--- a/gr-audio/lib/jack/audio_jack_source.cc
+++ b/gr-audio/lib/jack/audio_jack_source.cc
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2005,2006,2010 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,
@@ -50,7 +50,7 @@ typedef jack_default_audio_sample_t sample_t;
 // TODO: make it to match at least the quantity of items passed to work()
 static const unsigned int N_BUFFERS = 16;
 
-static std::string 
+static std::string
 default_device_name ()
 {
   return gr_prefs::singleton()->get_string("audio_jack", "default_input_device", "gr_source");
@@ -78,7 +78,7 @@ jack_source_process (jack_nframes_t nframes, void *arg)
   // Tell the source thread there is data in the ringbuffer.
   // If it is already running, the lock will not be available.
   // We can't wait here in the process() thread, but we don't
-  // need to signal in that case, because the source thread will 
+  // need to signal in that case, because the source thread will
   // check for data availability.
 
   if (pthread_mutex_trylock (&self->d_jack_process_lock) == 0) {
@@ -131,8 +131,8 @@ audio_jack_source::audio_jack_source (int sampling_rate,
   // just decides to stop calling us.
 
   //jack_on_shutdown (d_jack_client, &jack_shutdown, (void*)this);
- 
-  d_jack_input_port = jack_port_register (d_jack_client, "in", 
+
+  d_jack_input_port = jack_port_register (d_jack_client, "in",
 					  JACK_DEFAULT_AUDIO_TYPE,
 					  JackPortIsInput, 0);
 
@@ -162,7 +162,7 @@ audio_jack_source::audio_jack_source (int sampling_rate,
 bool
 audio_jack_source::check_topology (int ninputs, int noutputs)
 {
-  // tell the JACK server that we are ready to roll 
+  // tell the JACK server that we are ready to roll
   if (jack_activate (d_jack_client))
     throw std::runtime_error ("audio_jack_source");
 
@@ -192,7 +192,7 @@ audio_jack_source::work (int noutput_items,
     unsigned int read_space;	// bytes
 
 #ifdef NO_PTHREAD
-    while ((read_space=jack_ringbuffer_read_space (d_ringbuffer)) < 
+    while ((read_space=jack_ringbuffer_read_space (d_ringbuffer)) <
 	   d_jack_buffer_size*sizeof(sample_t)) {
       usleep(1000000*((d_jack_buffer_size-read_space/sizeof(sample_t))/d_sampling_rate));
     }
@@ -200,7 +200,7 @@ audio_jack_source::work (int noutput_items,
     // JACK actually requires POSIX
 
     pthread_mutex_lock (&d_jack_process_lock);
-    while ((read_space=jack_ringbuffer_read_space (d_ringbuffer)) < 
+    while ((read_space=jack_ringbuffer_read_space (d_ringbuffer)) <
 		    d_jack_buffer_size*sizeof(sample_t)) {
 
       // wait until jack_source_process() signals more data
diff --git a/gr-audio/lib/jack/audio_jack_source.h b/gr-audio/lib/jack/audio_jack_source.h
index a155bf95b..2849c84b0 100644
--- a/gr-audio/lib/jack/audio_jack_source.h
+++ b/gr-audio/lib/jack/audio_jack_source.h
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2005-2011 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,
@@ -69,7 +69,7 @@ public:
   audio_jack_source (int sampling_rate, const std::string device_name, bool ok_to_block);
 
   ~audio_jack_source ();
-  
+
   bool check_topology (int ninputs, int noutputs);
 
   int work (int noutput_items,
diff --git a/gr-audio/lib/jack/gri_jack.cc b/gr-audio/lib/jack/gri_jack.cc
index fef1c58a6..793ed8336 100644
--- a/gr-audio/lib/jack/gri_jack.cc
+++ b/gr-audio/lib/jack/gri_jack.cc
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2005 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,
diff --git a/gr-audio/lib/jack/gri_jack.h b/gr-audio/lib/jack/gri_jack.h
index ddc0b744d..5dcd3b811 100644
--- a/gr-audio/lib/jack/gri_jack.h
+++ b/gr-audio/lib/jack/gri_jack.h
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2005 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,
diff --git a/gr-audio/lib/oss/audio_oss_sink.cc b/gr-audio/lib/oss/audio_oss_sink.cc
index 34af16cce..26b71be24 100644
--- a/gr-audio/lib/oss/audio_oss_sink.cc
+++ b/gr-audio/lib/oss/audio_oss_sink.cc
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2004-2011 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,
@@ -66,7 +66,7 @@ audio_oss_sink::audio_oss_sink (int sampling_rate,
     throw std::runtime_error ("audio_oss_sink");
   }
 
-  double CHUNK_TIME = 
+  double CHUNK_TIME =
     std::max(0.001, gr_prefs::singleton()->get_double("audio_oss", "latency", 0.005));
 
   d_chunk_size = (int) (d_sampling_rate * CHUNK_TIME);
@@ -121,7 +121,7 @@ audio_oss_sink::work (int noutput_items,
 		      gr_vector_void_star &output_items)
 {
   const float  *f0, *f1;
-  
+
   switch (input_items.size ()){
 
   case 1:		// mono input
@@ -138,7 +138,7 @@ audio_oss_sink::work (int noutput_items,
 	perror ("audio_oss_sink: write");
     }
     break;
-    
+
   case 2:		// stereo input
 
     f0 = (const float *) input_items[0];
diff --git a/gr-audio/lib/oss/audio_oss_sink.h b/gr-audio/lib/oss/audio_oss_sink.h
index 47b1407d3..8148ec34b 100644
--- a/gr-audio/lib/oss/audio_oss_sink.h
+++ b/gr-audio/lib/oss/audio_oss_sink.h
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2004-2011 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,
@@ -46,7 +46,7 @@ public:
   audio_oss_sink (int sampling_rate, const std::string device_name = "", bool ok_to_block = true);
 
   ~audio_oss_sink ();
-  
+
   int work (int noutput_items,
 	    gr_vector_const_void_star &input_items,
 	    gr_vector_void_star &output_items);
diff --git a/gr-audio/lib/oss/audio_oss_source.cc b/gr-audio/lib/oss/audio_oss_source.cc
index eefe4dd04..e186e30ae 100644
--- a/gr-audio/lib/oss/audio_oss_source.cc
+++ b/gr-audio/lib/oss/audio_oss_source.cc
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2004-2011 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,
@@ -126,13 +126,13 @@ audio_oss_source::work (int noutput_items,
   const int bytes_per_item = shorts_per_item * sizeof (short);
 
   // To minimize latency, never return more than CHUNK_TIME
-  // worth of samples per call to work.  
+  // worth of samples per call to work.
 
   noutput_items = std::min (noutput_items, d_chunk_size);
 
   int	base = 0;
   int	ntogo = noutput_items;
-  
+
   while (ntogo > 0){
     int nbytes = std::min (ntogo, d_chunk_size) * bytes_per_item;
     int result_nbytes = read (d_fd, d_buffer, nbytes);
@@ -158,7 +158,7 @@ audio_oss_source::work (int noutput_items,
 	}
 	break;
 
-      case 2:			// stereo output	
+      case 2:			// stereo output
 	for (int i = 0; i < result_nitems; i++){
 	  f0[base+i] = d_buffer[2*i+0] * (1.0 / 32767);
 	  f1[base+i] = d_buffer[2*i+1] * (1.0 / 32767);
diff --git a/gr-audio/lib/oss/audio_oss_source.h b/gr-audio/lib/oss/audio_oss_source.h
index df9f68e42..abb2db1f8 100644
--- a/gr-audio/lib/oss/audio_oss_source.h
+++ b/gr-audio/lib/oss/audio_oss_source.h
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2004-2011 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,
@@ -48,7 +48,7 @@ public:
 		    bool ok_to_block = true);
 
   ~audio_oss_source ();
-  
+
   int work (int noutput_items,
 	    gr_vector_const_void_star &input_items,
 	    gr_vector_void_star &output_items);
diff --git a/gr-audio/lib/osx/audio_osx.h b/gr-audio/lib/osx/audio_osx.h
index 79e79e36c..0a98b71ef 100644
--- a/gr-audio/lib/osx/audio_osx.h
+++ b/gr-audio/lib/osx/audio_osx.h
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2006 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,
diff --git a/gr-audio/lib/osx/audio_osx_sink.cc b/gr-audio/lib/osx/audio_osx_sink.cc
index 901881da6..939e5e0a1 100644
--- a/gr-audio/lib/osx/audio_osx_sink.cc
+++ b/gr-audio/lib/osx/audio_osx_sink.cc
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2006-2011 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,
@@ -144,10 +144,10 @@ audio_osx_sink::audio_osx_sink (int sample_rate,
   input.inputProcRefCon = this;
 
   err = AudioUnitSetProperty (d_OutputAU,
-			      kAudioUnitProperty_SetRenderCallback, 
+			      kAudioUnitProperty_SetRenderCallback,
 			      kAudioUnitScope_Input,
-			      0, 
-			      &input, 
+			      0,
+			      &input,
 			      sizeof (input));
   CheckErrorAndThrow (err, "AudioUnitSetProperty Render Callback", "audio_osx_sink::audio_osx_sink");
 
@@ -355,11 +355,11 @@ audio_osx_sink::work (int noutput_items,
 }
 
 OSStatus audio_osx_sink::AUOutputCallback
-(void *inRefCon, 
- AudioUnitRenderActionFlags *ioActionFlags, 
- const AudioTimeStamp *inTimeStamp, 
- UInt32 inBusNumber, 
- UInt32 inNumberFrames, 
+(void *inRefCon,
+ AudioUnitRenderActionFlags *ioActionFlags,
+ const AudioTimeStamp *inTimeStamp,
+ UInt32 inBusNumber,
+ UInt32 inNumberFrames,
  AudioBufferList *ioData)
 {
   audio_osx_sink* This = (audio_osx_sink*) inRefCon;
diff --git a/gr-audio/lib/osx/audio_osx_sink.h b/gr-audio/lib/osx/audio_osx_sink.h
index e7598097d..73b3db40d 100644
--- a/gr-audio/lib/osx/audio_osx_sink.h
+++ b/gr-audio/lib/osx/audio_osx_sink.h
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2006-2011 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,
@@ -69,11 +69,11 @@ public:
 	    gr_vector_void_star &output_items);
 
 private:
-  static OSStatus AUOutputCallback (void *inRefCon, 
-				    AudioUnitRenderActionFlags *ioActionFlags, 
-				    const AudioTimeStamp *inTimeStamp, 
-				    UInt32 inBusNumber, 
-				    UInt32 inNumberFrames, 
+  static OSStatus AUOutputCallback (void *inRefCon,
+				    AudioUnitRenderActionFlags *ioActionFlags,
+				    const AudioTimeStamp *inTimeStamp,
+				    UInt32 inBusNumber,
+				    UInt32 inNumberFrames,
 				    AudioBufferList *ioData);
 };
 
diff --git a/gr-audio/lib/osx/audio_osx_source.cc b/gr-audio/lib/osx/audio_osx_source.cc
index 6c5609d20..29f0ac381 100644
--- a/gr-audio/lib/osx/audio_osx_source.cc
+++ b/gr-audio/lib/osx/audio_osx_source.cc
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2006-2011 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,
@@ -134,7 +134,7 @@ audio_osx_source::audio_osx_source (int sample_rate,
 #else
   ComponentDescription InputDesc;
 #endif
-  
+
 
   InputDesc.componentType = kAudioUnitType_Output;
   InputDesc.componentSubType = kAudioUnitSubType_HALOutput;
@@ -147,7 +147,7 @@ audio_osx_source::audio_osx_source (int sample_rate,
 #else
   Component comp = FindNextComponent (NULL, &InputDesc);
 #endif
-  
+
   if (comp == NULL) {
 #ifndef GR_USE_OLD_AUDIO_UNIT
     std::cerr << "AudioComponentFindNext Error" << std::endl;
@@ -166,11 +166,11 @@ audio_osx_source::audio_osx_source (int sample_rate,
   CheckErrorAndThrow (err, "OpenAComponent",
 		      "audio_osx_source::audio_osx_source");
 #endif
-  
+
 
   UInt32 enableIO;
 
-// must enable the AUHAL for input and disable output 
+// must enable the AUHAL for input and disable output
 // before setting the AUHAL's current device
 
 // Enable input on the AUHAL
@@ -392,7 +392,7 @@ audio_osx_source::audio_osx_source (int sample_rate,
 //   UInt32 ACPrimeMethod = kConverterPrimeMethod_None;
     UInt32 ACPrimeMethod = kConverterPrimeMethod_Pre;
     propertySize = sizeof (ACPrimeMethod);
-    err = AudioConverterSetProperty (d_AudioConverter, 
+    err = AudioConverterSetProperty (d_AudioConverter,
 				     kAudioConverterPrimeMethod,
 				     propertySize,
 				     &ACPrimeMethod);
@@ -400,12 +400,12 @@ audio_osx_source::audio_osx_source (int sample_rate,
 			"audio_osx_source::audio_osx_source");
 
 // Get the size of the I/O buffer(s) to allow for pre-allocated buffers
-      
+
 // lead frame info (trail frame info is ignored)
 
     AudioConverterPrimeInfo ACPrimeInfo = {0, 0};
     propertySize = sizeof (ACPrimeInfo);
-    err = AudioConverterGetProperty (d_AudioConverter, 
+    err = AudioConverterGetProperty (d_AudioConverter,
 				     kAudioConverterPrimeInfo,
 				     &propertySize,
 				     &ACPrimeInfo);
@@ -981,7 +981,7 @@ audio_osx_source::SetDefaultInputDeviceAsCurrent
 #if _OSX_DO_LISTENERS_
 OSStatus
 audio_osx_source::HardwareListener
-(AudioHardwarePropertyID inPropertyID, 
+(AudioHardwarePropertyID inPropertyID,
  void *inClientData)
 {
   OSStatus err = noErr;
@@ -1012,7 +1012,7 @@ audio_osx_source::UnitListener
 {
   OSStatus err = noErr;
   audio_osx_source* This = static_cast<audio_osx_source*>(inRefCon);
-  AudioStreamBasicDescription asbd;			
+  AudioStreamBasicDescription asbd;
 
   std::cerr << "a_o_s::UnitListener" << std::endl;
 
diff --git a/gr-audio/lib/osx/audio_osx_source.h b/gr-audio/lib/osx/audio_osx_source.h
index 435172a2c..bb34d972c 100644
--- a/gr-audio/lib/osx/audio_osx_source.h
+++ b/gr-audio/lib/osx/audio_osx_source.h
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2006-2011 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,
@@ -108,7 +108,7 @@ private:
 				AudioUnitScope inScope,
 				AudioUnitElement inElement);
 
-  static OSStatus HardwareListener (AudioHardwarePropertyID inPropertyID, 
+  static OSStatus HardwareListener (AudioHardwarePropertyID inPropertyID,
 				    void *inClientData);
 #endif
 };
diff --git a/gr-audio/lib/osx/circular_buffer.h b/gr-audio/lib/osx/circular_buffer.h
index 48758bf87..65788d482 100644
--- a/gr-audio/lib/osx/circular_buffer.h
+++ b/gr-audio/lib/osx/circular_buffer.h
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2006,2009,2010 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,
diff --git a/gr-audio/lib/portaudio/audio_portaudio_sink.cc b/gr-audio/lib/portaudio/audio_portaudio_sink.cc
index 7fdb99577..af7f1e48c 100644
--- a/gr-audio/lib/portaudio/audio_portaudio_sink.cc
+++ b/gr-audio/lib/portaudio/audio_portaudio_sink.cc
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2006-2011 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 he 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,
@@ -49,7 +49,7 @@ typedef float sample_t;
 // Number of portaudio buffers in the ringbuffer
 static const unsigned int N_BUFFERS = 4;
 
-static std::string 
+static std::string
 default_device_name ()
 {
   return gr_prefs::singleton()->get_string("audio_portaudio", "default_output_device", "");
@@ -59,7 +59,7 @@ void
 audio_portaudio_sink::create_ringbuffer(void)
 {
   int bufsize_samples = d_portaudio_buffer_size_frames * d_output_parameters.channelCount;
-  
+
   if (d_verbose)
     fprintf(stderr,"ring buffer size  = %d frames\n",
 	    N_BUFFERS*bufsize_samples/d_output_parameters.channelCount);
@@ -89,7 +89,7 @@ portaudio_sink_callback (const void *inputBuffer,
     framesPerBuffer * self->d_output_parameters.channelCount;
 
   int navail_samples = self->d_reader->items_available();
-  
+
   if (nreqd_samples <= navail_samples) {  // We've got enough data...
     {
       gruel::scoped_lock guard(self->d_ringbuffer_mutex);
@@ -167,7 +167,7 @@ audio_portaudio_sink::audio_portaudio_sink(int sampling_rate,
   if (numDevices == 0)
     bail("no devices available", 0);
 
-  if (d_device_name.empty()) 
+  if (d_device_name.empty())
   {
     // FIXME Get smarter about picking something
     fprintf(stderr,"\nUsing Default Device\n");
@@ -259,7 +259,7 @@ audio_portaudio_sink::check_topology (int ninputs, int noutputs)
     return false;
   }
 
-#if 0  
+#if 0
   const PaStreamInfo *psi = Pa_GetStreamInfo(d_stream);
 
   d_portaudio_buffer_size_frames = (int)(d_output_parameters.suggestedLatency  * psi->sampleRate);
@@ -332,11 +332,11 @@ audio_portaudio_sink::work (int noutput_items,
 
       int nf = std::min(noutput_items - k, nframes);
       float *p = (float *) d_writer->write_pointer();
-      
+
       for (int i = 0; i < nf; i++)
 	for (unsigned int c = 0; c < nchan; c++)
 	  *p++ = in[c][k + i];
-      
+
       d_writer->update_write_pointer(nf * nchan);
       k += nf;
 
diff --git a/gr-audio/lib/portaudio/audio_portaudio_sink.h b/gr-audio/lib/portaudio/audio_portaudio_sink.h
index 04a881f7e..cf64d3da0 100644
--- a/gr-audio/lib/portaudio/audio_portaudio_sink.h
+++ b/gr-audio/lib/portaudio/audio_portaudio_sink.h
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2006-2011 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,
@@ -75,7 +75,7 @@ public:
 			bool ok_to_block);
 
   ~audio_portaudio_sink ();
-  
+
   bool check_topology (int ninputs, int noutputs);
 
   int work (int noutput_items,
diff --git a/gr-audio/lib/portaudio/audio_portaudio_source.cc b/gr-audio/lib/portaudio/audio_portaudio_source.cc
index 55828ad21..ddb1a6fb6 100644
--- a/gr-audio/lib/portaudio/audio_portaudio_source.cc
+++ b/gr-audio/lib/portaudio/audio_portaudio_source.cc
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2006-2011 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 he 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,
@@ -49,7 +49,7 @@ typedef float sample_t;
 // Number of portaudio buffers in the ringbuffer
 static const unsigned int N_BUFFERS = 4;
 
-static std::string 
+static std::string
 default_device_name ()
 {
   return gr_prefs::singleton()->get_string("audio_portaudio", "default_input_device", "");
@@ -59,7 +59,7 @@ void
 audio_portaudio_source::create_ringbuffer(void)
 {
   int bufsize_samples = d_portaudio_buffer_size_frames * d_input_parameters.channelCount;
-  
+
   if (d_verbose)
     fprintf(stderr, "ring buffer size  = %d frames\n",
 	    N_BUFFERS*bufsize_samples/d_input_parameters.channelCount);
@@ -101,7 +101,7 @@ portaudio_source_callback (const void *inputBuffer,
 	     inputBuffer,
 	     nframes_to_copy * nchan * sizeof(sample_t));
       self->d_writer->update_write_pointer(nframes_to_copy * nchan);
-	 
+
       // Tell the source thread there is new data in the ringbuffer.
       self->d_ringbuffer_ready = true;
     }
@@ -167,7 +167,7 @@ audio_portaudio_source::audio_portaudio_source(int sampling_rate,
   if (numDevices == 0)
     bail("no devices available", 0);
 
-  if (d_device_name.empty()) 
+  if (d_device_name.empty())
   {
     // FIXME Get smarter about picking something
     device = Pa_GetDefaultInputDevice();
@@ -178,7 +178,7 @@ audio_portaudio_source::audio_portaudio_source(int sampling_rate,
   else
   {
     bool found = false;
-    
+
     for (i=0;i<numDevices;i++) {
       deviceInfo = Pa_GetDeviceInfo( i );
       fprintf(stderr,"Testing device name: %s",deviceInfo->name);
@@ -257,7 +257,7 @@ audio_portaudio_source::check_topology (int ninputs, int noutputs)
     return false;
   }
 
-#if 0  
+#if 0
   const PaStreamInfo *psi = Pa_GetStreamInfo(d_stream);
 
   d_portaudio_buffer_size_frames = (int)(d_input_parameters.suggestedLatency  * psi->sampleRate);
@@ -309,7 +309,7 @@ audio_portaudio_source::work (int noutput_items,
 	  d_ringbuffer_cond.wait(guard);	// block here, then try again
 	continue;
       }
-      
+
       assert(k == 0);
 
       // There's no data and we're not allowed to block.
@@ -343,7 +343,7 @@ audio_portaudio_source::work (int noutput_items,
       gruel::scoped_lock guard(d_ringbuffer_mutex);
 
       int nf = std::min(noutput_items - k, nframes);
-      
+
       const float *p = (const float *) d_reader->read_pointer();
       for (int i = 0; i < nf; i++){
 	for (unsigned int c = 0; c < nchan; c++){
diff --git a/gr-audio/lib/portaudio/audio_portaudio_source.h b/gr-audio/lib/portaudio/audio_portaudio_source.h
index b555bc759..e81389a3b 100644
--- a/gr-audio/lib/portaudio/audio_portaudio_source.h
+++ b/gr-audio/lib/portaudio/audio_portaudio_source.h
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2006-2011 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,
@@ -73,7 +73,7 @@ public:
 			  bool ok_to_block);
 
   ~audio_portaudio_source ();
-  
+
   bool check_topology (int ninputs, int noutputs);
 
   int work (int ninput_items,
diff --git a/gr-audio/lib/portaudio/gri_portaudio.cc b/gr-audio/lib/portaudio/gri_portaudio.cc
index faa472337..66f3d4647 100644
--- a/gr-audio/lib/portaudio/gri_portaudio.cc
+++ b/gr-audio/lib/portaudio/gri_portaudio.cc
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2006 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,
@@ -80,7 +80,7 @@ gri_print_devices()
 	printf( "[ Default %s Input", hostInfo->name );
 	defaultDisplayed = 1;
       }
-        
+
     if( i == Pa_GetDefaultOutputDevice() )
       {
 	printf( (defaultDisplayed ? "," : "[") );
@@ -90,7 +90,7 @@ gri_print_devices()
     else if( i == Pa_GetHostApiInfo( deviceInfo->hostApi )->defaultOutputDevice )
       {
 	const PaHostApiInfo *hostInfo = Pa_GetHostApiInfo( deviceInfo->hostApi );
-	printf( (defaultDisplayed ? "," : "[") );                
+	printf( (defaultDisplayed ? "," : "[") );
 	printf( " Default %s Output", hostInfo->name );
 	defaultDisplayed = 1;
       }
diff --git a/gr-audio/lib/portaudio/gri_portaudio.h b/gr-audio/lib/portaudio/gri_portaudio.h
index 36191e25a..c3ea7d064 100644
--- a/gr-audio/lib/portaudio/gri_portaudio.h
+++ b/gr-audio/lib/portaudio/gri_portaudio.h
@@ -1,19 +1,19 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2006 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,
diff --git a/gr-audio/swig/CMakeLists.txt b/gr-audio/swig/CMakeLists.txt
index 8a3258f66..4997ca3f7 100644
--- a/gr-audio/swig/CMakeLists.txt
+++ b/gr-audio/swig/CMakeLists.txt
@@ -1,17 +1,17 @@
 # Copyright 2011 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,
diff --git a/gr-audio/swig/__init__.py b/gr-audio/swig/__init__.py
index c1b9a0493..ff10a8976 100644
--- a/gr-audio/swig/__init__.py
+++ b/gr-audio/swig/__init__.py
@@ -1,18 +1,18 @@
 #
 # Copyright 2011 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,
diff --git a/gr-audio/swig/audio_swig.i b/gr-audio/swig/audio_swig.i
index 71db0ae09..089055dac 100644
--- a/gr-audio/swig/audio_swig.i
+++ b/gr-audio/swig/audio_swig.i
@@ -1,18 +1,18 @@
 /*
  * Copyright 2011 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,