\documentclass[a4paper]{book}
\usepackage{makeidx}
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\usepackage{sectsty}
\usepackage[titles]{tocloft}
\usepackage{doxygen}
\lstset{language=C++,inputencoding=utf8,basicstyle=\footnotesize,breaklines=true,breakatwhitespace=true,tabsize=8,numbers=left }
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\begin{document}
\hypersetup{pageanchor=false}
\begin{titlepage}
\vspace*{7cm}
\begin{center}
{\Large Unity \\[1ex]\large 1.0 }\\
\vspace*{1cm}
{\large Generated by Doxygen 1.7.4}\\
\vspace*{0.5cm}
{\small Tue May 13 2014 11:44:42}\\
\end{center}
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\clearemptydoublepage
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\tableofcontents
\clearemptydoublepage
\pagenumbering{arabic}
\hypersetup{pageanchor=true}
\chapter{Unity}
\label{index}\hypertarget{index}{}\input{index}
\chapter{Data Structure Index}
\input{annotated}
\chapter{File Index}
\input{files}
\chapter{Data Structure Documentation}
\input{structfunction__definition}
\input{struct_function_application}
\input{struct_simple_unit}
\input{structunit__struct}
\input{struct_unit_def}
\input{struct_unit_expression}
\chapter{File Documentation}
\input{unity_8h}
\printindex
\end{document}