Error while building conglomerate 0.9.1

Hi,

when I try to build conglomerate 0.9.1, the make process breaks with the 
following errors:

-----------------------------------------------------
*** Building SGML ***
cd . && \
gtkdoc-mkdb --module=conglomerate --source-dir=../../src 
--main-sgml-file=conglomerate-docs.sgml --sgml-mode
--output-format=XML
ERROR: CongEditorNodeEntityRef has multiple definitions
ERROR: CongEditorNodeEntityRefClass has multiple definitions
ERROR: CongNodeModificationAddBefore has multiple definitions

[others like that...]

WARNING: No declaration found for: cong_document_get_dispspec_element
WARNING: Parameter description missing in source code comment block -
          FUNCTION: cong_document_find Parameter: doc.
          Parameters must start on the line immediately after the function
          or macro name.
WARNING: Parameter description missing in source code comment block -
          FUNCTION: cong_editor_area_text_new Parameter: text.
          Parameters must start on the line immediately after the function
          or macro name.
WARNING: Parameter description missing in source code comment block -
          FUNCTION: cong_editor_area_text_new Parameter: use_markup.
          Parameters must start on the line immediately after the function
          or macro name.
WARNING: No declaration found for: cong_editor_node_get_type
WARNING: No declaration found for: CongXMLChar
WARNING: No declaration found for: xml_frag_data_nice
WARNING: No declaration found for: xml_frag_name_nice
60% symbol docs coverage (811 symbols documented, 547 not documented)
See conglomerate-undocumented.txt for a list of missing docs.
The doc coverage percentage doesn't include intro sections.
touch sgml-build.stamp
*** Building HTML ***
test -d ./html || mkdir ./html
cd ./html && gtkdoc-mkhtml conglomerate ../conglomerate-docs.sgml
I/O error : Attempt to load network entity 
http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsl
warning: failed to load external entity 
"http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsl"
compilation error: file /opt/gnome/share/gtk-doc/data/gtk-doc.xsl line 6 
element import
xsl:import : unable to load 
http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsl
make[3]: *** [html-build.stamp] Fehler 5
make[3]: Leaving directory 
`/home/chs/apps/conglomerate/conglomerate-0.9.1/doc/reference'
make[2]: *** [all-recursive] Fehler 1
make[2]: Leaving directory 
`/home/chs/apps/conglomerate/conglomerate-0.9.1/doc'
make[1]: *** [all-recursive] Fehler 1
make[1]: Leaving directory `/home/chs/apps/conglomerate/conglomerate-0.9.1'
make: *** [all-recursive-am] Fehler 2
----------------------------------------------------


Can you help me?

Thanks in advance
Christian

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