Add -Wno-dev to avoid cmake policy warnings.
Add -Wno-dev to avoid cmake policy warnings.

LLNL/spack,EmreAtes/spack,skosukhin/spack,lgarren/spack,tmerrick1/spack,TheTimmy/spack,lgarren/spack,tmerrick1/spack,krafczyk/spack,tmerrick1/spack,TheTimmy/spack,matthiasdiener/spack,mfherbst/spack,lgarren/spack,mfherbst/spack,skosukhin/spack,matthiasdiener/spack,krafczyk/spack,skosukhin/spack,tmerrick1/spack,EmreAtes/spack,krafczyk/spack,TheTimmy/spack,LLNL/spack,matthiasdiener/spack,skosukhin/spack,EmreAtes/spack,matthiasdiener/spack,iulian787/spack,mfherbst/spack,TheTimmy/spack,krafczyk/spack,tmerrick1/spack,EmreAtes/spack,skosukhin/spack,iulian787/spack,mfherbst/spack,TheTimmy/spack,matthiasdiener/spack,lgarren/spack,LLNL/spack,LLNL/spack,LLNL/spack,iulian787/spack,iulian787/spack,iulian787/spack,EmreAtes/spack,mfherbst/spack,krafczyk/spack,lgarren/spack