I hope your not still having the problem, I just got to editing the Firmware, but it seems to be a problem with the table. I just took out the decimal points and numbers and it was able to build. All the thermistor files have the same error with "temp_entry_t" and "PROGMEM" which is confusing. Anyway I thought I would comment this for anyone in the future. Let me know if you found a better solution, but the worst I can tell with this one is that will happen is the temperatures will read a bit higher.