I'd like to know how you compiled from github. I've tried several ways and always get errors. I can compile everything else just fine (FBI, Pasta CFW, etc...) It would be appreciated if you could say what you did, including exactly what versions of mingw and stuff you used...
All is in this link https://gbatemp.net/threads/noob-proof-guide-to-compile-rxtools-source.392242/
You need to install Git to clone the repository