This program uses Forward Error Correction (FEC) based on Vandermonde (VDM)
matrices to recover lost blocks of files.  Its primary application is
intended to be in recovering data from unreliable media such as diskettes.
(Note that you must write the data to the diskette using this program
in the first place in order to be able to recover the data!)

To install, configure and make install.  Three programs are copied into
$bindir:
	vdmfec
	vdm_encode
	vdm_decode
these files are all hard links to each other, the latter being equivalent
to calling 'vdmfec -d'.

CFLAGS and LDFLAGS default to -O3 and -s, resp.  For debugging you might
want to 'configure CFLAGS="-O2 -g" LDFLAGS=""'.

The Notes file gives the file format.

VDMFEC is based on the Vandermonde FEC C code written by Luigi Rizzo.
The home page for fec.c is http://www.iet.unipi.it/~luigi/fec.html

The files README.fec, fec.3, fec.c, fec.h, and fec_ccr.ps.gz are from
Rizzo's 980624 distribution, sans assembly code, and with a few changes
to make for better autoconfiguration.  The vdmfec code will only work
with GF_BITS=8 (because the block id is stored as a byte).
