Hi -- I've recently been trying to install the Gnu Radio system on a new machine using the build-gnuradio script. The script is failing with an error in the gr-osmocom build phase, and I've been able to verify this with a separate attempt to build. In rtl_source_c.cc, line 224, the build fails with: error: 'rtlsdr_set_bias_tee' was not declared in this scope ret = rtlsdr_set_bias_tee(_dev, bias_tee); It appears that changes were merged into the tree on about June 11 to add bias tee support, and that this error results from that change set. I'm able to get a successful build if I comment out those few lines of code, but when I try to run an application (e.g., osmocom_fft), upon exit there is a bunch of traceback output and a lengthy memory map printed. I'm no debugging expert, but I can tell that the exact error and address change on different runs, but always appear to be related to a memory map or corrupted list. I don't know if anyone else has seen either the build issue, or the traceback issue, so thought I should report it here. FWIW, I'm building on a fresh install of Linux Mint 18.1 using the latest version of the build-gnuradio script on a Lenovo M900 i7-6700T system. I've used the build-gnuradio script on several other systems in the past without encountering this issue. If you need any further info, I'm happy to provide it. Thanks, John N8UR