description: 'l2tpv3 network backend support')
option('netmap', type : 'feature', value : 'auto',
description: 'netmap network backend support')
+option('pixman', type : 'feature', value : 'auto',
+ description: 'pixman support')
option('slirp', type: 'feature', value: 'auto',
description: 'libslirp user mode network backend support')
option('vde', type : 'feature', value : 'auto',