libgl1-mesa-dri 6.4.1-0ubuntu3 (hppa binary) in ubuntu dapper

A free implementation of the OpenGL API -- DRI modules
 This version of Mesa provides GLX and DRI capabilities: it is capable of
 both direct and indirect rendering. For direct rendering, it can use DRI
 modules from the libgl1-mesa-dri package to accelerate drawing.
 .
 This package does not include the OpenGL library itself, only the DRI
 modules for accelerating direct rendering.
 .
 For a complete description of Mesa, please look at the
 libgl1-mesa-swrast package.