$ make
g++ -DVERSION="\"gr-scan 2012082301\"" -std=c++0x -Wall -I/usr/local/include/gnuradio -I/usr/local/include/osmosdr -lgnuradio-core -lgnuradio-osmosdr -lboost_system -O2 -s -Wno-unused-function -o gr-scan main.cpp
In file included from topblock.hpp:30,
                 from main.cpp:23:
scanner_sink.hpp: In member function ‘bool scanner_sink::TrySignal(double, double)’:
scanner_sink.hpp:185: error: expected initializer before ‘:’ token
scanner_sink.hpp:194: error: expected primary-expression at end of input
scanner_sink.hpp:194: error: expected ‘;’ at end of input
scanner_sink.hpp:194: error: expected primary-expression at end of input
scanner_sink.hpp:194: error: expected ‘)’ at end of input
scanner_sink.hpp:194: error: expected statement at end of input
scanner_sink.hpp:194: error: expected ‘}’ at end of input
In file included from main.cpp:23:
topblock.hpp: In constructor ‘TopBlock::TopBlock(double, double, double, double, double, double, double, unsigned int, double, double, double)’:
topblock.hpp:56: error: ‘class osmosdr_source_c’ has no member named ‘set_if_gain’
topblock.hpp: In member function ‘double TopBlock::GetWindowPower()’:
topblock.hpp:88: error: expected initializer before ‘:’ token
topblock.hpp:91: error: expected primary-expression before ‘return’
topblock.hpp:91: error: expected ‘;’ before ‘return’
topblock.hpp:91: error: expected primary-expression before ‘return’
topblock.hpp:91: error: expected ‘)’ before ‘return’
make: *** [gr-scan] Error 1