[xml] Problem using libxslt and chunking?

[Niels Soeffers <nso elex be>]

Hello,

I'm using libxslt and have a valid xsl file. It does just what I want when 
I run it with xsltproc,
when I try to do the same thing as xsltproc using the API functions 
xsltApplyStylesheet or xsltRunStylesheet, the 'other' documents
specified by <xt:document....> are not outputted?
What API function do I have to call to get the same effect as xsltproc?

I tried:
  xmlOutputBufferPtr xmlOut = xmlOutputBufferCreateFilename( saveTo, NULL 
, 0);
  if ( -1 == xsltRunStylesheet(stylesheet, document, NULL, saveTo, NULL, 
xmlOut) )
and

 xmlDocPtr result = xsltApplyStylesheet(stylesheet, document, NULL);
 xsltSaveResultToFilename( saveTo, result, stylesheet, 0);

Greetings and thanks for the time,

Niels