I’m not sure to which list this should go: there is no “kal” tool in
the openbts git atm but gnuradio wiki where kal-0.2 is available says
that it will be there eventually.
Nevertheless kal build failed on ubuntu 10.04.2 x86 with gcc 4.4.3 due
to lack of “#include <stdio.h>” in circular_buffer.cc
It would be nice to see this trivial fix merged in some proper location.