pi@raspberrypi:/home/gr-iridium/build $ cmake ..
-- Build type not specified: defaulting to release.
-- Boost version: 1.61.0
-- Found the following Boost libraries:
--   filesystem
--   system
--
-- Checking for module SWIG
-- Found SWIG version 2.0.12.
-- Configuring done
-- Generating done
-- Build files have been written to: /home/gr-iridium/build
-- Build type not specified: defaulting to release.
-- Boost version: 1.61.0
-- Found the following Boost libraries:
--   filesystem
--   system
Checking for GNU Radio Module: RUNTIME
 * INCLUDES=/usr/include
 * LIBS=/usr/lib/arm-linux-gnueabihf/libgnuradio-runtime.so;/usr/lib/arm-linux-gnueabihf/libgnuradio-pmt.so
GNURADIO_RUNTIME_FOUND = TRUE
Checking for GNU Radio Module: FFT
 * INCLUDES=/usr/include
 * LIBS=/usr/lib/arm-linux-gnueabihf/libgnuradio-fft.so;/usr/lib/arm-linux-gnueabihf/libgnuradio-runtime.so;/usr/lib/arm-linux-gnueabihf/libgnuradio-pmt.so
GNURADIO_FFT_FOUND = TRUE
Checking for GNU Radio Module: FILTER
 * INCLUDES=/usr/include
 * LIBS=/usr/lib/arm-linux-gnueabihf/libgnuradio-filter.so;/usr/lib/arm-linux-gnueabihf/libgnuradio-fft.so;/usr/lib/arm-linux-gnueabihf/libgnuradio-runtime.so;/usr/lib/arm-linux-gnueabihf/libgnuradio-pmt.so
GNURADIO_FILTER_FOUND = TRUE
Checking for GNU Radio Module: VOLK
 * INCLUDES=/usr/include
 * LIBS=/usr/lib/arm-linux-gnueabihf/libvolk.so
GNURADIO_VOLK_FOUND = TRUE
--
-- Checking for module SWIG
-- Found SWIG version 2.0.12.
-- Configuring done
-- Generating done
-- Build files have been written to: /home/gr-iridium/build


pi@raspberrypi:/home/gr-iridium/build $ make

[ 26%] Built target gnuradio-iridium
Linking CXX executable test-iridium
libgnuradio-iridium.so: undefined reference to `gr::sync_block::sync_block(std::string const&, boost::shared_ptr<gr::io_signature>, boost::shared_ptr<gr::io_signature>)'
libgnuradio-iridium.so: undefined reference to `pmt::string_to_symbol(std::string const&)'
libgnuradio-iridium.so: undefined reference to `gr::sync_decimator::sync_decimator(std::string const&, boost::shared_ptr<gr::io_signature>, boost::shared_ptr<gr::io_signature>, unsigned int)'
collect2: error: ld returned 1 exit status
lib/CMakeFiles/test-iridium.dir/build.make:148: recipe for target 'lib/test-iridium' failed
make[2]: *** [lib/test-iridium] Error 1
CMakeFiles/Makefile2:158: recipe for target 'lib/CMakeFiles/test-iridium.dir/all' failed
make[1]: *** [lib/CMakeFiles/test-iridium.dir/all] Error 2
Makefile:127: recipe for target 'all' failed
make: *** [all] Error 2