The Kawa manual includes Kawa specific instructions for building
and install Kawa and its sub-packages.  You can read the manual
online at http://www.gnu.org/software/kawa/Installation.html .

If you prefer to, you can download kawa-doc-N.M.tar.gz from
ftp://ftp.gnu.org/pub/gnu/kawa/ and read the HTML files for
version N.M off-line.  The file kawa/Installation.html has the
installation instructions.

The texinfo source for the manual is the file doc/kawa.texi of
the Kawa source distribution.