A number of people report the headers not being found when running intel-clc. I've run into the same issue but only on the most recent Ubuntu version. Signed-off-by: Lionel Landwerlin <llandwerlin@gmail.com> Reviewed-by: Karol Herbst <kherbst@redhat.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30711>