This is a version of hcompress that compiles and works on Ubuntu 12.04 (works on Mac OSX El Capitan as well).
Taken from http://www.stsci.edu/software/hcompress.html, with minor changes.
You can view the original README file, which the authors named aareadme
. Or, just run make all
followed optionally by make install
to begin using hcompress.