build: cleaning up check for functions and headers
build: cleaning up check for functions and headers

jgaeddert/liquid-dsp,wangning223/liquid-dsp,jgaeddert/liquid-dsp,jgaeddert/liquid-dsp,JayKickliter/liquid-dsp,wangning223/liquid-dsp,wangning223/liquid-dsp,JayKickliter/liquid-dsp,jgaeddert/liquid-dsp,JayKickliter/liquid-dsp,wangning223/liquid-dsp,jgaeddert/liquid-dsp,JayKickliter/liquid-dsp,wangning223/liquid-dsp,JayKickliter/liquid-dsp