Compilation issue

Hi! I was trying to compile the osmocom sdr project and also trying to report a compilation error. I will like to have an account to contribute. this was the error I got: In file included from /home/llazzaro/tmp/gr-osmosdr/lib/osmosdr_source_c_impl.h:23:0, from /home/llazzaro/tmp/gr-osmosdr/lib/osmosdr_source_c_impl.cc:30: /home/llazzaro/tmp/gr-osmosdr/include/osmosdr/osmosdr_source_c.h: In constructor ‘osmosdr_source_c::osmosdr_source_c()’: /home/llazzaro/tmp/gr-osmosdr/include/osmosdr/osmosdr_source_c.h:57:19: error: no matching function for call to ‘gr_hier_block2::gr_hier_block2()’ /home/llazzaro/tmp/gr-osmosdr/include/osmosdr/osmosdr_source_c.h:57:19: note: candidates are: /usr/include/gnuradio/gr_hier_block2.h:57:3: note: gr_hier_block2::gr_hier_block2(const string&, gr_io_signature_sptr, gr_io_signature_sptr) /usr/include/gnuradio/gr_hier_block2.h:57:3: note: candidate expects 3 arguments, 0 provided /usr/include/gnuradio/gr_hier_block2.h:43:7: note: gr_hier_block2::gr_hier_block2(const gr_hier_block2&) /usr/include/gnuradio/gr_hier_block2.h:43:7: note: candidate expects 1 argument, 0 provided /home/llazzaro/tmp/gr-osmosdr/lib/osmosdr_source_c_impl.cc: In constructor ‘osmosdr_source_c_impl::osmosdr_source_c_impl(const string&)’: /home/llazzaro/tmp/gr-osmosdr/lib/osmosdr_source_c_impl.cc:83:35: note: synthesized method ‘osmosdr_source_c::osmosdr_source_c()’ first required here make[2]: *** [lib/CMakeFiles/gnuradio-osmosdr.dir/osmosdr_source_c_impl.cc.o] Error 1 make[1]: *** [lib/CMakeFiles/gnuradio-osmosdr.dir/all] Error 2 make: *** [all] Error 2 -- http://www.lazzaroleonardo.com.ar/ twitter @llazzaro