xz => { use => 1, extension => 'xz', flags => compressor('xz -9', sub { $ENV{XZ_OPT} = '-9'; '--xz' }) },
lzip => { use => 0, extension => 'lz', flags => compressor('lzip -9', '--lzip') },
},
xz => { use => 1, extension => 'xz', flags => compressor('xz -9', sub { $ENV{XZ_OPT} = '-9'; '--xz' }) },
lzip => { use => 0, extension => 'lz', flags => compressor('lzip -9', '--lzip') },
},