GitLab

Rob Latham authored Jan 20, 2015 and Kenneth Raffenetti committed Jan 23, 2015

HDF5 folks reported a bug with ROMIO and one of their slightly-strange (but
100% legal) datatypes.  git-bisect points to the "promote size of length"
change.  Seems that MPICH does not like struct datatypes with zero-count
elements?  Further investigation requred.  This change (construct a simpler
datatype in more cases) is sufficient to help HDF5 move forward.

See #2221
Signed-off-by: Ken Raffenetti <raffenet@mcs.anl.gov>