@retropieuser555 said in [Tutorial] Installing Munt (MT-32 emulation) on RPi 3:
c++: error: unrecognized command-line option ‘-mfpu=neon-fp-armv8’
c++: error: unrecognized command-line option ‘-mfloat-abi=hard’
Are you on a 64bit system ? The flags above are not supported on aarch64 - remove them from the C/CXX-FLAGS.