description : 'comma separated list of window systems to support. wayland, x11, surfaceless, drm, etc.')
option('dri3', type : 'combo', value : 'auto', choices : ['auto', 'yes', 'no'],
description : 'enable support for dri3')
-option('dri-drivers', type : 'string', value : 'i965',
+option('dri-drivers', type : 'string', value : 'swrast,i965',
description : 'comma separated list of dri drivers to build.')
option('dri-drivers-path', type : 'string', value : '',
description : 'Location of dri drivers. Default: $libdir/dri.')