Hi Pinaki, You wrote: >Actually, I am not adding or deleting any file, rather changing the -O2 option t >o -O0. Any quick pointer? Before doing configure, change 'config.frag' for your cpu/os to add -O0 option to CFLAGS. For example, if you use i386/linux then edit 'config/i386/linux/config.frag' to add line CFLAGS="-O0" Kiyo