x11proto-dri2-dev 2.8-2 (i386 binary) in ubuntu xenial

 This package provides development headers describing the wire protocol
 for the DRI2 extension, used to organise direct rendering support
 for 3D clients, and replace the XFree86-DRI extension.
 .
 More information about X.Org can be found at:
 <URL:http://www.X.org>
 .
 This package is built from the X.org dri2proto proto module.