intel: optionally take gcc executable from cflags (#11136)
intel: optionally take gcc executable from cflags (#11136)


LLNL/spack,LLNL/spack,iulian787/spack,iulian787/spack,iulian787/spack,LLNL/spack,LLNL/spack,iulian787/spack,iulian787/spack,LLNL/spack