-opts.Add(ListVariable('statetrackers', 'state trackers to build', default_statetrackers,
- ['mesa', 'python', 'xorg']))
-opts.Add(ListVariable('drivers', 'pipe drivers to build', default_drivers,
- ['softpipe', 'failover', 'svga', 'i915', 'i965', 'trace', 'r300', 'identity', 'llvmpipe', 'nouveau']))
-opts.Add(ListVariable('winsys', 'winsys drivers to build', default_winsys,
- ['xlib', 'vmware', 'i915', 'i965', 'gdi', 'radeon', 'graw-xlib']))
-
-opts.Add(EnumVariable('MSVS_VERSION', 'MS Visual C++ version', None, allowed_values=('7.1', '8.0', '9.0')))