Cherry-pick "Merge branch 'FindHDF5Improvements-1.0-20180131' into '1.0'" into master
FindHDF5.cmake improvements, 1.0 branch (2018.01.31.)
See merge request !226 (merged)
(cherry picked from commit 458ff9fb)
- 4495bb43 Updated FindHDF5.cmake not to be confused by the HDF5 version installed