Makefile :
##########

The root Makefile permit currently 3 actions :
 * Validation : For the xml validation of docbook files
  make validate
  
 * Export : For build the documentation exports in all available formats
  make export
  
 * Clean : Delete non-sources files
  make clean

Dependencies :
##############

For validation :
================
 * xmllint command (in debian package libxml2-utils)
 
For exports :
=============
 * in HTML :
 ~~~~~~~~~~~
   + xsltproc command (in debian package xsltproc)
   + XSL stylesheets by N.Walsh (html/docbook.xsl, htmlhelp/htmlhelp.xsl
     and xhtml/chunk.xsl) (in debian package docbook-xsl)
     
 * in PDF :
 ~~~~~~~~~~
   + jw command (in debian package docbook-utils)

 * in EPUB :
 ~~~~~~~~~~~
   + dbtoepub command ((in debian package dbtoepub)
