This process worked to enable OpenCL with the Intel HD 630 on an Ubuntu 24 system.
I installed these dependencies after a basic install of Ubuntu 24 and OpenCL support compiled fine within PhantomSDR+.
apt install ocl-icd-libopencl1 opencl-headers ocl-icd-opencl-dev libclfft-dev clinfo
Phil
It works for modern GPU's this way, but older CPU/GPU's work too but need a different approach.
I think it's Gen6 and higher that works this way.