Add support to fmcomms2 SDR hardware

README.md

@@ -368,7 +368,55 @@ $ sudo make install
 
 (in order to disable the `Osmosdr_Signal_Source` compilation, you can pass `DENABLE_OSMOSDR=OFF` to cmake and build GNSS-SDR again).
 
+###### Build FMCOMMS2 based SDR Hardware support (OPTIONAL):
 
+Install [libiio] (https://github.com/analogdevicesinc/libiio.git
+), [libad9361] (clone https://github.com/analogdevicesinc/libad9361-iio.git) and [gr-iio] (clone https://github.com/analogdevicesinc/gr-iio.git) gnuradio block (based on https://www.plutosdr.com/viewtopic.php?t=5):
+
+~~~~~~
+$ git clone https://github.com/analogdevicesinc/libiio.git
+$ cd libiio
+$ mkdir build
+$ cd build
+$ cmake ..
+$ make
+$ sudo make install
+$ sudo ldconfig
+$ git clone https://github.com/analogdevicesinc/libad9361-iio.git
+$ cd libad9361-iio
+$ mkdir build
+$ cd build
+$ cmake ..
+$ make
+$ sudo make install
+$ sudo ldconfig
+$ git clone https://github.com/analogdevicesinc/gr-iio.git
+$ cd gr-iio
+$ mv include/gnuradio/iio include/iio
+$ rm -r include/gnuradio
+$ sed -i 's/gnuradio\/iio/iio/g' CMakeLists.txt
+$ sed -i 's/gnuradio\/iio/iio/g' swig/*
+$ sed -i 's/gnuradio\/iio/iio/g' include/iio/*
+$ sed -i 's/gnuradio\/iio/iio/g' lib/*
+$ sed -i 's/gnuradio\/iio/iio/g' python/iio/*
+$ sed -i 's/from\ gnuradio\ import\ iio/import\ iio/g' grc/iio_pluto_sink.xml
+$ sed -i 's/from\ gnuradio\ import\ iio/import\ iio/g' grc/iio_pluto_source.xml
+$ sed -i 's/from\ gnuradio\ import\ iio/import\ iio/g' grc/iio_fmcomms2_sink.xml
+$ sed -i 's/from\ gnuradio\ import\ iio/import\ iio/g' grc/iio_fmcomms2_source.xml
+$ mkdir build
+$ cd build
+$ cmake ..
+$ make
+$ sudo make install
+$ sudo ldconfig
+~~~~~~
+
+Then configure the gnss-sdr to build the `Fmcomms2_Signal_Source`:
+~~~~~~
+$ cmake -DENABLE_FMCOMMS2=ON ../
+$ make 
+$ sudo make install
+~~~~~~
 
 ###### Build OpenCL support (OPTIONAL):