This is the TNG library bundled with CPPTRAJ. Original source taken from:
https://github.com/gromacs/tng
commit 14dd68ff46df1ef1cf2d9bcc1f4f5bddb974ce1c
The Makefile file is not part of the original distribution and is intended only to make a library that can be used by cpptraj.
More details can be found in AUTHORS, COPYING, and INSTALL.
