option('system-wide', type : 'boolean', value : true,
    description : 'Install system-wide rather than isolated inside a Python environment'
)

option('code-only', type : 'boolean', value : false,
    description : 'Do not install additional files such as configuration or documentation'
)

option('eprefix', type : 'string',
    description : 'Prefix directory for gentoolkit to operate under'
)

option('docdir', type : 'string',
    description : 'Documentation directory'
)