Before you can compile this package on linux, you need to apply the patch
included below as follows:

$ cd /usr/src/linux
$ patch -b -p1 < linux-fist-2.0.34.diff

and then rebuild and reinstall your kernel.  The patch exports several
symbols and structures useful for our kernel loadable file system modules.
It also add one field to struct vm_area_struct <linux/mm.h> so that our file
systems can refer to their underlying memory mapped objects, and stack on
top of them.

Erez Zadok <ezk@cs.columbia.edu.
