cmake INTERNAL_HAVE_INTEL_COMPILER examples

trilinos/Trilinos packages/kokkos/cmake/kokkos_compiler_id.cmake :114

execute_process(
    COMMAND ${CMAKE_CXX_COMPILER} --version
    COMMAND grep -c "DPC++\\|icpx"
    OUTPUT_VARIABLE INTERNAL_HAVE_INTEL_COMPILER
    OUTPUT_STRIP_TRAILING_WHITESPACE
  )