make validate-ko

-:84139: namespace error : Namespace prefix xi on include is not defined
  <xi:include href="glossary/glossary.xml"/>
                                          ^
-:84139: element xi:include: validity error : No declaration for attribute href of element xi:include
  <xi:include href="glossary/glossary.xml"/>
                                          ^
-:84139: element xi:include: validity error : No declaration for element xi:include
  <xi:include href="glossary/glossary.xml"/>
                                            ^
-:87699: element book: validity error : Element book content does not follow the DTD, expecting ((title , subtitle? , titleabbrev?)? , bookinfo? , (dedication | toc | lot | glossary | bibliography | preface | chapter | reference | part | article | appendix | index | setindex | colophon)*), got (bookinfo toc preface part part part xi:include bibliography appendix appendix appendix appendix index )
</book>
       ^
-:6345: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-bezier-curve"
-:44534: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-guides"
-:58386: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-antialiasing"
-:8129: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-bumpmapping"
-:63802: element xref: validity error : IDREF attribute linkend references an unknown ID "glossary-bumpmapping"
-:3862: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-floatingselection"
-:79119: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-jpeg"
-:79120: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-png"
-:62969: element xref: validity error : IDREF attribute linkend references an unknown ID "glossary-supersampling"
-:1398: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-indexedcolors"
-:33223: element xref: validity error : IDREF attribute linkend references an unknown ID "glossary-hsv"
-:38334: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-hsv"
-:75593: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-hsv"
-:38346: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-cmyk"
-:55224: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-cmyk"
-:38904: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-parasite"
-:1438: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-masks"
-:17522: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-samplemerge"
-:18044: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-samplemerge"
-:21854: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-samplemerge"
-:28720: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-samplemerge"
-:30654: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-alpha-channel"
-:38882: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-alpha-channel"
-:79121: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-fileformat"
-:56410: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-pdb"
-:56552: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-pdb"
-:57204: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-pdb"
-:28020: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-rgb"
-:38309: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-rgb"
-:38321: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-rgb"
-:38807: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-rgb"
-:45276: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-rgb"
-:53270: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-rgb"
-:55223: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-rgb"
-:70606: element xref: validity error : IDREF attribute linkend references an unknown ID "glossary-rgb"
-:5514: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-alpha"
-:5620: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-alpha"
-:80182: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-alpha"
-:1396: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-graylevel"
-:52914: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-graylevel"
-:4432: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-postscript"
-:12260: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-interpolation"
-:64666: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-interpolation"
-:79118: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-gif"
-:4029: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-colormodel"
-:4090: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-colormodel"
-:26198: element xref: validity error : IDREF attribute linkend references an unknown ID "glossary-colormodel"
-:33203: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-colormodel"
-:38296: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-colormodel"
-:44115: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-colormodel"
-:45366: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-colormodel"
-:51835: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-colormodel"
-:53908: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-colormodel"
-:44408: element xref: validity error : IDREF attribute linkend references an unknown ID "glossary-rendering-intent"
-:32209: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-quantization"
-:53271: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-lab"
-:29920: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-channels"
-:20743: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-dithering"
-:45469: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-dithering"
-:17097: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-feathering"
-:32276: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-html-notation"
-:33318: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-html-notation"
-:38177: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-html-notation"
-:38301: element link: validity error : IDREF attribute linkend references an unknown ID "glossary-html-notation"
(You will find log and xml files in log/.)