On Thu, May 21, 2015 at 11:25:47AM -0400, Comer Duncan wrote:
> Should I go ahead and do a from scratch download including GetComponents?

You don't need to re-download everyone. Building from scratch would be
best though. Before that, if you use the development version, do an
'svn update' in arrangements/ExternalLibraries/MPI. If you use the
release, replace the file
  arrangements/ExternalLibraries/MPI/src/detect.pl
by this one
  https://svn.cactuscode.org/projects/ExternalLibraries/MPI/trunk/src/detect.pl

Frank