E.g., for the typechecker sources of the compiler.

% cd compiler/typechecker/

* make a Jmakefile that is NOT plugged into the overall make-world
  system; it will probably look like this:

------------------------------
/* this is a standalone Jmakefile; NOT part of ghc "make world" */

LitDocRootTargetWithNamedOutput(root,lit,root-standalone)
------------------------------

* make a "root file", root.lit, to glue the modules together.

  At the beginning you'll have something like:

    \begin{onlystandalone}
    \documentstyle[11pt,literate,a4wide]{article}
    \begin{document}
    \title{The Glasgow \Haskell{} typechecker}
    \author{The GRASP team}
    \date{October 1991}
    \maketitle
    \tableofcontents
    \end{onlystandalone}

    \begin{onlypartofdoc}
    \section[Typechecker]{The typechecker}
    \downsection
    \end{onlypartofdoc}

  At the end of the file, you'll need something like:

    \begin{onlypartofdoc}
    \upsection
    \end{onlypartofdoc}

    \begin{onlystandalone}
    \printindex
    \end{document}
    \end{onlystandalone}

  In between, simply \input all the modules, possibly adding some
  sectioning hierarchy:

    \section[Typechecker-core]{Typechecking the abstract syntax}
    \downsection
    \input{XXXXXXX.lhs}
    \input{YYYYYYY.lhs}
    \upsection

    \section[Typechecker-support]{Typechecker: supporting modules}
    \downsection
    \input{AAAAAAAAAAA.lhs}
    \input{BBBBBBBBBBB.lhs}
    \upsection

* To make your Makefile, do:

    % jmkmf -P ghc

  (because of a bug, you may have to do it twice :-)

* Then do "make depend".

* Now you are ready for business:

    % make root.info
    
    or
    
    % make root.dvi