Intel oneAPI Toolkit

1. Download Intel oneAPI Base Toolkit

2. Assuming the toolkit is installed in /opt/intel/oneApi, set environment using:

   # Linux, macOS:
   export ONEAPI_TOOLCHAIN_PATH=/opt/intel/oneapi
   source $ONEAPI_TOOLCHAIN_PATH/compiler/latest/env/vars.sh
   
   # Windows:
   > set ONEAPI_TOOLCHAIN_PATH=C:\Users\Intel\oneapi
   

   To setup the complete oneApi environment, use:

   source  /opt/intel/oneapi/setvars.sh
   

   The above will also change the python environment to the one used by the toolchain and might conflict with what Zephyr uses.

3. Set ZEPHYR_TOOLCHAIN_VARIANT to oneApi.