In order to use Fermat with examples in the subdirectories
./system, ./pipe, ./extern and ./dblpipe
you have to install the program FERMAT written by
Robert H. Lewis of Fordham University (New York).

These examples are platform-independent. However,
the FORM executable file is compiled for Linux i364,
which means the FERMAT executable file must be
for Linux, too.

First, download FERMAT for Linux from 
http://www.bway.net/~lewis/
and install it to your favourite directory, say,
/home/user/fermat/fermat3.6.4

Next, make a symbolic links in the current directory 
(which is the father of ./system, ./pipe, ./extern 
and ./dblpipe ):

ln -s /home/user/fermat/fermat3.6.4 fermat

That's all. Now all links in ./system, ./pipe, ./extern 
and ./dblpipe must be valid links to FERMAT executable.

