\documentclass[a4paper,12pt]{article}

\usepackage{mathptmx}
\usepackage{natbib}
\usepackage{xspace}
\usepackage{makeidx}

\newcommand \Waf{\textbf{\emph{Waf}}\xspace}
\newcommand \BibTeX{Bib\TeX\xspace}
\newcommand \acronym[1]{{\small #1}}

\newcommand \bringin[1]{\clearpage\input{#1.ltx}}

\title{A Test Document For Waf Construction}
\author{Russel Winder}

\makeindex

\begin{document}

\bibliographystyle{apalike}

\maketitle

\vfil

\tableofcontents

\bringin{introduction}
\bringin{indexing}
\bringin{bibtex}
\bringin{crossreferencing}
\bringin{conclusions}
%\bringin{conclusions2} % make it fail on purpose to test the batch mode

\clearpage

\bibliography{bib}

\printindex

\end{document}