to a problem when trying to use several files in a single noweb
project.  In my project, I have a LaTeX master file (say, doc.tex) that
\include's three others: say, a.tex, b.tex, and copyright.tex.  These
later files are generated from a.nw, b.nw, and copyright.nw,
respectively, using the command "noweave -n -index" I <em>really</em> want to
keep these noweb files separated.  In the code chunks appearing in both
a.nw and b.nw a copyright notice chunk (defined in copyright.nw) is
included.
<p>
Tangling work