inspectrum compile error against liquid-dsp 1.2.0

gistfile1.txt

brew tap dholm/sdr
brew install dholm/sdr/liquid-dsp
# problem: installs liquid-dsp 1.2.0, released Apr 26, 2012, 
# FIX: brew install --HEAD dholm/sdr/liquid-dsp

git clone https://github.com/miek/inspectrum
# https://github.com/miek/inspectrum/tree/fc9e575052a069923a21b496f73f2b4867539a2f
cd inspectrum
cmake .
make

build $ make
[  4%] Automatic moc for target inspectrum
[  4%] Built target inspectrum_automoc
[  9%] Building CXX object CMakeFiles/inspectrum.dir/frequencydemod.cpp.o
/Users/admin/rf/inspectrum/frequencydemod.cpp:33:5: error: unknown type name 'freqdem'; did you mean 'freqmodem'?
    freqdem fdem = freqdem_create(0.05f);
    ^~~~~~~
    freqmodem
/usr/local/include/liquid/liquid.h:3129:30: note: 'freqmodem' declared here
typedef struct freqmodem_s * freqmodem;
                             ^
/Users/admin/rf/inspectrum/frequencydemod.cpp:33:20: error: use of undeclared identifier 'freqdem_create'; did you mean 'modem_create'?
    freqdem fdem = freqdem_create(0.05f);
                   ^~~~~~~~~~~~~~
                   modem_create
/usr/local/include/liquid/liquid.h:3023:7: note: 'modem_create' declared here
modem modem_create(modulation_scheme _scheme);
      ^
/Users/admin/rf/inspectrum/frequencydemod.cpp:33:35: error: cannot initialize a parameter of type 'modulation_scheme' with an rvalue of type 'float'
    freqdem fdem = freqdem_create(0.05f);
                                  ^~~~~
/usr/local/include/liquid/liquid.h:3023:38: note: passing argument to parameter '_scheme' here
modem modem_create(modulation_scheme _scheme);
                                     ^
/Users/admin/rf/inspectrum/frequencydemod.cpp:35:9: error: use of undeclared identifier 'freqdem_demodulate'; did you mean 'freqmodem_demodulate'?
        freqdem_demodulate(fdem, in[i], &out[i]);
        ^~~~~~~~~~~~~~~~~~
        freqmodem_demodulate
/usr/local/include/liquid/liquid.h:3154:6: note: 'freqmodem_demodulate' declared here
void freqmodem_demodulate(freqmodem _fm,
     ^
/Users/admin/rf/inspectrum/frequencydemod.cpp:35:34: error: no viable conversion from 'std::__1::complex<float>' to 'liquid_float_complex'
        freqdem_demodulate(fdem, in[i], &out[i]);
                                 ^~~~~
/usr/local/include/liquid/liquid.h:86:1: note: candidate constructor (the implicit copy constructor) not viable: no known conversion from 'std::__1::complex<float>' to
      'const liquid_float_complex &' for 1st argument
LIQUID_DEFINE_COMPLEX(float,  liquid_float_complex);
^
/usr/local/include/liquid/liquid.h:82:47: note: expanded from macro 'LIQUID_DEFINE_COMPLEX'
#   define LIQUID_DEFINE_COMPLEX(R,C) typedef struct {R real; R imag;} C;
                                              ^
/usr/local/include/liquid/liquid.h:86:1: note: candidate constructor (the implicit move constructor) not viable: no known conversion from 'std::__1::complex<float>' to
      'liquid_float_complex &&' for 1st argument
/usr/local/include/liquid/liquid.h:82:47: note: expanded from macro 'LIQUID_DEFINE_COMPLEX'
#   define LIQUID_DEFINE_COMPLEX(R,C) typedef struct {R real; R imag;} C;
                                              ^
/usr/local/include/liquid/liquid.h:3155:48: note: passing argument to parameter '_y' here
                          liquid_float_complex _y,
                                               ^
/Users/admin/rf/inspectrum/frequencydemod.cpp:37:5: error: use of undeclared identifier 'freqdem_destroy'; did you mean 'freqmodem_destroy'?
    freqdem_destroy(fdem);
    ^~~~~~~~~~~~~~~
    freqmodem_destroy
/usr/local/include/liquid/liquid.h:3140:6: note: 'freqmodem_destroy' declared here
void freqmodem_destroy(freqmodem _fm);
     ^
6 errors generated.
make[2]: *** [CMakeFiles/inspectrum.dir/frequencydemod.cpp.o] Error 1
make[1]: *** [CMakeFiles/inspectrum.dir/all] Error 2
make: *** [all] Error 2