This tar file contains 

    build-unix.sh       script to build HDF5 with CMake on unix machines
    build-unix-hpc.sh   script to build HDF5 with CMake on unix machines and run
                        tests with batch scripts (sbatch).
    CTestScript.cmake   
    HDF5config.cmake    CMake scripts for building HDF5
    HDF5options.cmake
    hdf5-1.10.5-pre1    HDF5 1.10.5-pre1 source
    SZip.tar.gz         source for building SZIP
    ZLib.tar.gz         source for building ZLIB

For more information about building HDF5 with CMake, see USING_HDF5_CMake.txt in
hdf5-1.10.5-pre1/release_docs, or 
https://portal.hdfgroup.org/display/support/Building+HDF5+with+CMake.

For more information about building HDF5 with CMake on HPC machines, including 
cross compiling on Cray XC40, see README_HPC in hdf5-1.10.5-pre1/release_docs.