# below are the high-level patches made to the standard ESP8266audio libraries

# For Arduino 3 (gcc has a higher level of checks

libmad/layer3.c replace (line 1639)
    void fastsdct(mad_fixed_t const x[9], mad_fixed_t y[18])
to
    void fastsdct(mad_fixed_t const x[9], mad_fixed_t y[17])


libflac/stream_decoder.c
line 2786
			if(!FLAC__bitreader_read_rice_signed_block(decoder->private_->input, residual + sample, u, rice_parameter))
to
			if(!FLAC__bitreader_read_rice_signed_block(decoder->private_->input, (int*) residual + sample, u, rice_parameter))

line 2795
				if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i, rice_parameter))
to
				if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, (long int*) &i, rice_parameter))


l3loop.cpp
remove all 'register'

mult_noarch_gcc.h
remove all 'register'