DEFAULT_CFLAGS_i386=-O2 -pipe -march=i486 -fno-caller-saves
DEFAULT_CFLAGS_x86_64=-O2 -pipe -march=athlon64 -fno-caller-saves
DEFAULT_CFLAGS_m68k=-Os -pipe -mcfv4e -fno-caller-saves
DEFAULT_CFLAGS_i386=-O2 -pipe -march=i486 -fno-caller-saves
DEFAULT_CFLAGS_x86_64=-O2 -pipe -march=athlon64 -fno-caller-saves
DEFAULT_CFLAGS_m68k=-Os -pipe -mcfv4e -fno-caller-saves