[Discuss-gnuradio] can't compile C++ example

[Gong Zhang]

Hi,
   I wanna execute the dial_tone.cc example.So I execute "g++ 
dial_tone.cc -I /usr/local/include/gnuradio/"
   But I got the errors:
laptop:~/Desktop/ccompile$ g++ dial_tone.cc -I /usr/local/include/gnuradio/
/tmp/ccxAFik0.o: In function `main':
dial_tone.cc:(.text+0x59): undefined reference to 
`gr_make_top_block(std::basic_string<char, std::char_traits<char>, 
std::allocator<char> > const&)'
dial_tone.cc:(.text+0xc2): undefined reference to 
`gr_make_sig_source_f(double, gr_waveform_t, double, double, float)'
dial_tone.cc:(.text+0xfb): undefined reference to 
`gr_make_sig_source_f(double, gr_waveform_t, double, double, float)'
dial_tone.cc:(.text+0x176): undefined reference to `audio_make_sink(int, 
std::basic_string<char, std::char_traits<char>, std::allocator<char> >, 
bool)'
dial_tone.cc:(.text+0x238): undefined reference to 
`gr_hier_block2::connect(boost::shared_ptr<gr_basic_block>, int, 
boost::shared_ptr<gr_basic_block>, int)'
dial_tone.cc:(.text+0x2de): undefined reference to 
`gr_hier_block2::connect(boost::shared_ptr<gr_basic_block>, int, 
boost::shared_ptr<gr_basic_block>, int)'
dial_tone.cc:(.text+0x33d): undefined reference to `gr_top_block::run(int)'
collect2: ld returned 1 exit status