fix the regressions blocking doxygen documentation generation

doc/CMakeLists.txt

@@ -0,0 +1,15 @@
+
+find_package(Doxygen QUIET)
+
+if(DOXYGEN_FOUND)
+  configure_file(Doxyfile ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile @ONLY)
+  add_custom_target(doc
+    ${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile
+    COMMENT "Generating API documentation with Doxygen" VERBATIM
+    )
+else()
+  add_custom_target(doc
+    message(FATAL_ERROR "required to generate doxygen documentation but doxygen not installed")
+    )
+endif(DOXYGEN_FOUND)
+

doc/openair_header.tex

@@ -0,0 +1,47 @@
+\documentclass[a4paper]{book}
+\usepackage{a4wide}
+\usepackage{makeidx}
+\usepackage{fancyhdr}
+\usepackage{graphicx}
+\usepackage{multicol}
+\usepackage{float}
+\usepackage{textcomp}
+\usepackage{alltt}
+\usepackage{amsmath}
+\usepackage{amssymb}
+\ifx\pdfoutput\undefined
+\usepackage[ps2pdf,
+            pagebackref=true,
+            colorlinks=true,
+            linkcolor=blue
+           ]{hyperref}
+\usepackage{pspicture}
+\else
+\usepackage[pdftex,
+            pagebackref=true,
+            colorlinks=true,
+            linkcolor=blue
+           ]{hyperref}
+\fi
+\usepackage{doxygen}
+\usepackage{times}
+\makeindex
+\setcounter{tocdepth}{1}
+\renewcommand{\footrulewidth}{0.4pt}
+\begin{document}
+\begin{titlepage}
+\vspace*{7cm}
+\begin{center}
+{\Large openair Specifications }\\
+Phyiscal, Medium-Access, Radio-link Control, Packet Data Convergence Protocol and Radio Resource Control Layers\\
+\vspace*{1cm}
+{\large Generated by Doxygen 1.3.8}\\
+\vspace*{0.5cm}
+{\small Sun Oct 31 19:27:37 2004}\\
+\end{center}
+\end{titlepage}
+\clearemptydoublepage
+\pagenumbering{roman}
+\tableofcontents
+\clearemptydoublepage
+\pagenumbering{arabic}