discriminate by cpu, check for nasm, add option for disabling asm optimizations
discriminate by cpu, check for nasm, add option for disabling asm optimizations

Distrotech/flac,Distrotech/flac,waitman/flac,waitman/flac,fredericgermain/flac,Distrotech/flac,waitman/flac,kode54/flac,fredericgermain/flac,Distrotech/flac,LordJZ/libflac,waitman/flac,kode54/flac,fredericgermain/flac,waitman/flac,kode54/flac,fredericgermain/flac,LordJZ/libflac,LordJZ/libflac,LordJZ/libflac,kode54/flac