GRGSM_LIVEMON - segmentation fault

Rather than track down why I can't build grgsm_livemon on this particular Kali linux machine, I opted to build it from scratch in GNURadio-Companion, storing a WIP called mygrgsm_livemon on Google Drive. Let me just think out loud that it might be how I installed gnuradio on Kali linux. I may have used sudo apt-get install gnuradio instead of downloading from source and building. Anyway, I have it working on a virtual machine running Kali Linux, so I'll let it go for now.