title: how to save XML to a file (filename.xml) using libxml2 ?
body: <p>I've configured libxml2 with <code>" --with-minimum -with--schemas "</code> switches (configuration options). 
  I am using "xmlNewNode" "xmlAddChild" etc. functions to generate the XML file.
  Now, i want to save the XML to a file,  but i didn't find any function to do that.</p>
  
  <p>Of-course, there are plenty of functions (like xmlSaveFile() etc..) in "libxml2 full version" BUT as i said i've configured it with <code>--minimum</code> configuration option (b/c of memory constraints).</p>
  
  <p>Any one with help ?
  Thanks !    </p>