The stumbling block is getting the prerequisite EXPath Packaging System to work.
I'm following the instructions at https://code.google.com/p/expath-pkg/ , but
the "--repo" command-line flag doesn't appear to exist in Saxon 9.6 and I'm not
having any luck setting the EXPATH_REPO environment variable as a substitute.
If anyone has a working setup and can share the details I'd be grateful,