Todd Gamblin 26480f14f9 Add "default" configuration scope. ...

- Default scope is versioned with spack and can be overridden by site
  or user config.

- Default scope provides sensible default concretization preferences
  for all of Spack.

- per-platform concretization scope can be added later (to force a
  particular MPI on, e.g., Cray systems)

2016-07-19 17:10:17 -07:00

..

spack/defaults

Add "default" configuration scope.

2016-07-19 17:10:17 -07:00