option('split-usr', type : 'combo', choices : ['auto', 'true', 'false'],
description : '''/bin, /sbin aren't symlinks into /usr''')
option('split-bin', type : 'combo', choices : ['auto', 'true', 'false'],
option('split-usr', type : 'combo', choices : ['auto', 'true', 'false'],
description : '''/bin, /sbin aren't symlinks into /usr''')
option('split-bin', type : 'combo', choices : ['auto', 'true', 'false'],