Source for the bitshuffle code is:
https://github.com/kiyo-masui/bitshuffle
Release Tag: 0.3.4
Commit at time of copy:
9ffba9de83036a91d345fa2f62fcaedf55f54c5f
The LZF and HDF5 plugin parts are not included as they are
not required.
Error messages and function names/line numbers are traced via
__func__ or __FUNCTION__, __LINE__, etc (or just "unknown" if
not available). A manual stack is kept onto which these values
are pushed which can then be dumped to stderr/stdout.
stderr is used to report this information since no other
facility appears to be provided.