- gnuradio-companion needs to be invoked with root privilege
  if you add several input devices, say, to activate following parts 
         Sources -> RTL-SDR Source
                    osmoscom Source
  etc. One way to to this is (as my example)
  X11 -> xterm -> sudo -s 
      -> export XAUTHORITY=/home/my_login/.Xauthority
      -> gnuradio-companion
  (Thanks rkujawa@ for this)
  
- OPTIONS.gnuradio= ninja doesn't package with error:
  # Adding ninja to following line (now) stops
  # [164/850] cd /PATH/wip/gnuradio-core/work/gnuradio-3.7.5/build/gr-audio/swig && ""
  # FAILED: cd /PATH/wip/gnuradio-core/work/gnuradio-3.7.5/build/gr-audio/swig && ""
  # : permission denied
  (updating cmake 3.0.2 in wip doesn't help)

- Unknown message at pbulk
   [210/231] Starting build of  gnuradio-fec-3.7.5
   X11 connection rejected because of wrong authentication.

   at the time around these configure lines ?
   | -- Found ALSA 1.0.27.2
   | -- checking for module 'jack'
   | --   found jack, version 0.121.3
   | -- Found jack: /WRKOBJDIR/wip/gnuradio-fec/work/.buildlink/lib/libjack.so
   | -- Looking for C++ include AudioUnit/AudioUnit.h
   | -- Looking for C++ include AudioUnit/AudioUnit.h - not found
   | -- Looking for C++ include AudioToolbox/AudioToolbox.h
   | -- Looking for C++ include AudioToolbox/AudioToolbox.h - not found
   | -- checking for module 'portaudio-2.0'
   | --   found portaudio-2.0, version 19
   | -- Performing Test PORTAUDIO2_FOUND
   | -- Performing Test PORTAUDIO2_FOUND - Success
   | -- Found PORTAUDIO: /usr/pkg/include/portaudio2  
   | -- checking for module 'comedilib'
   | --   package 'comedilib' not found
   | -- 
   | -- Configuring gr-comedi support...

-  (May be) redundent lines in cmake options in Makefile
    -DCMAKE_INCLUDE_PATH="${PREFIX}/include/portaudio2 \
    -DCMAKE_LIBRARY_PATH=${PREFIX}/lib/portaudio2 \
    -DCMAKE_INCLUDE_DIR="${PREFIX}/include/libusb-1.0 \
 
      pkg-config --cflags portaudio-2.0
      pkg-config --libs   portaudio-2.0
      pkg-config --cflags libusb-1.0
   may return (correct) values but not utilized now

-  patches/patch-gnuradio_runtime_include_gnuradio_high__res__timer__h
    is a joke, should be corrected

- FreeBSD ports has many patches for 3.7.2.1
  http://svnweb.freebsd.org/ports/head/comms/gnuradio/files/

- Sub function status
  Marked . are included in minumum one (-core)

.ENABLE_GR_ANALOG
+ENABLE_GR_ATSC
.ENABLE_GR_AUDIO
.ENABLE_GR_BLOCKS
+ENABLE_GR_CHANNELS
 ENABLE_GR_COMEDI
-ENABLE_GR_CTRLPORT .. wants rpcmanager::get()
+ENABLE_GR_DIGITAL
+ENABLE_GR_FCD
+ENABLE_GR_FEC
.ENABLE_GR_FFT
.ENABLE_GR_FILTER
 ENABLE_GR_LOG
+ENABLE_GR_NOAA
+ENABLE_GR_PAGER
+ENABLE_GR_QTGUI
+ENABLE_GR_TRELLIS
+ENABLE_GR_UHD
+ENABLE_GR_UTILS
+ENABLE_GR_VIDEO_SDL
+ENABLE_GR_VOCODER
+ENABLE_GR_WAVELET
+ENABLE_GR_WXGUI

 ENABLE_BAD_BOOST
:ENABLE_DEFAULT
+ENABLE_DOXYGEN
.ENABLE_GNURADIO_RUNTIME
 ENABLE_PERFORMANCE_COUNTERS
+ENABLE_PYTHON
+ENABLE_RUNTIME
+ENABLE_SPHINX
 ENABLE_TESTING
.ENABLE_VOLK

(if ENABLE_DEFAULT=True with current other environment)
--   * python-support
--   * testing-support
--   * volk
--   * doxygen
--   * sphinx
--   * gnuradio-runtime
--   * gr-ctrlport
--   * gr-blocks
--   * gnuradio-companion
--   * gr-fec
--   * gr-fft
--   * gr-filter
--   * gr-analog
--   * gr-digital
--   * gr-dtv
--   * gr-atsc
--   * gr-audio
--   * * alsa
--   * * oss
--   * * jack
--   * * portaudio
--   * gr-channels
--   * gr-noaa
--   * gr-pager
--   * gr-qtgui
--   * gr-trellis
--   * gr-uhd
--   * gr-utils
--   * gr-video-sdl
--   * gr-vocoder
--   * gr-fcd
--   * gr-wavelet
--   * gr-wxgui
--   * gr-zeromq
-- 
-- ######################################################
-- # Gnuradio disabled components                        
-- ######################################################
--   * gr-comedi
