Compile Esp8266/Esp32 Arduino Code with gmake on FreeBSD

This is inspired by Raffeale from FreeBSD forum. The original link is here. Yet when following the step of Raffeale’s post, I bumped into some trouble. So, with a little trial and error myself. I\’v figured out a way to compile code for Esp8266 with gmake. System and Board This is tested on FreeBSD 12.2…