* Ghislain Vaillant <ghisvail@gmail.com>, 2016-03-29, 20:47:
No idea what is gzstream and which package provides it.
https://github.com/johnlees/seer links to: http://www.cs.unc.edu/Research/compgeom/gzstream/AFAICT, this is not packaged for Debian. (Although we have multiple embedded code copies[0]. Yay...)
[0] https://codesearch.debian.net/search?q=iostream+classes+wrapping+the+zlib+compression+library -- Jakub Wilk