This directory contains version 2.1.1 of the H4 to H5 source code. It was tested with HDF 4.2.5 and HDF5 1.8.4-patch1. If you build with the HDF5 shared (dynamic-link) library, you may need to add the HDF5 library path to the environment variable LD_LIBRARY_PATH. If you build with the SZIP shared (dynamic-link) library, you may also need to add the SZIP library path to LD_LIBRARY_PATH. For example: setenv LD_LIBRARY_PATH /szippath/lib:/hdf5path/lib You can also add the HDF5 1.6 compatibility flag to your environment variable: setenv CPPFLAGS -DH5_USE_16_API