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I think it comes down to poor documentation. As was said previously in the thread, one team of devs writes the drivers and then leaves the company and another team of devs is left with trying to understand how the code was written. It's like the broken telephone! Could someone that had an experience with ATI years past comment how similar was that with AMD nowadays?!
What distribution are you using? Generally, PTS will auto-install the necessary dependencies. In this case it isn't able to install OpenCL/GLUT development packages... Likely due to either being some obscure distribution (if so, please provide the necessary information and can add support) or running an older Linux distribution that doesn't have these packages.
I'm using Arch (64-bit with multilib), bang up-to-date. I'm not sure it's a problem with PTS though as I'm getting others too related to graphics in general.
The missing glut dependency issue disappeared when I installed freeglut. But the missing dependency for OpenCL is still there, even though I have libcl installed.
Could an issue with Mesa/r600 cause an OpenCL problem? I'm guessing this is where the issue lies, or thereabouts. Going to do some further reading now...
I'm only guessing, but perhaps what you have installed is the ICD loader, not the OpenCL implementation itself for the device/s you have in your system. In Arch, libcl contains an ICD loader, which serves as a central hub for vendor libraries. OpenCL still has to be provided by, at least, one vendor - which can be Mesa, AMD, NVIDIA, or whatever. I think, however, that Arch builds Mesa without OpenCL support.