Penny for your thoughts, guys: I am thinking about splitting the video_cards_i965 condition in virtual/opencl so that NEO is pulled in by video_cards_iris instead, and I wonder if there is anything I haven't thought about.
The reason why I would like to do this is that there is clear correspondence between compatibility matrices of the Iris OpenGL driver and the NEO OpenCL driver - both only work on Broadwell and newer. There are differences of course, most notably that the old OpenCL driver (Beignet) is already considered deprecated for systems supported by NEO whereas the old OpenGL driver in Mesa (i965) is still the official one even for newer systems. Nb. to the best of my knowledge it is safe to set VIDEO_CARDS=iris even globally because if both i965 and iris are available, Mesa for now still prefers the former unless the environment variable MESA_LOADER_DRIVER_OVERRIDE has been set to 'iris'. There would of course have to be a news item advising the users of virtual/opencl + dev-libs/intel-neo to adjust their USE flags. What do you think, guys? -- Marecki
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