UR opencl plugin compile error when using latest OpenCL-Headers

[sarnex]

Describe the bug

The problem is really stupid.

For some reason the OpenCL headers only define a struct member if ANSI strict mode is disabled or using clang, see here and here.

LLVM_ENABLE_PEDANTIC is on by default so ANSI strict mode is enabled (through -pedantic), so the struct member isn't defined so we get a compile error when trying to access it in the UR plugin.

So the build fails with gcc. I added a workaround in #19649.

To reproduce

No response

Environment

Additional context

No response

[bratpiorka]

I made a simple fix and updated the OpenCL headers in PR #20533
would this resolve the issue?

[sarnex]

I didn't test it but the fix looks like it would work, if you're confident we can close the issue. Thanks!

[bratpiorka]

confirmed by #20511 - closing