kdesudo fails to build from source in maverick

Binary package hint: kdesudo

seen in a test rebuild, and in today's maverick:
https://launchpad.net/ubuntu/+archive/test-rebuild-20100628/+build/1825133

[ 8%] Generating index.cache.bz2
cd /build/buildd/kdesudo-3.4.2.3/doc/en && /usr/bin/meinproc4 --check --cache /build/buildd/kdesudo-3.4.2.3/obj-x86_64-linux-gnu/doc/en/index.cache.bz2 /build/buildd/kdesudo-3.4.2.3/doc/en/index.docbook
index.docbook:8: warning: failed to load external entity "dtd/kdex.dtd"
]>
  ^
index.docbook:10: parser error : Entity 'language' not defined
<book lang="&language;">
                      ^
index.docbook:10: element book: validity error : No declaration for attribute lang of element book
<book lang="&language;">
                       ^
index.docbook:13: element application: validity error : No declaration for element application
<title>The &kdesudo; handbook</title>
                    ^
index.docbook:13: element title: validity error : No declaration for element title
<title>The &kdesudo; handbook</title>
                                     ^
index.docbook:17: element firstname: validity error : No declaration for element firstname
<firstname>Robert</firstname>
                             ^
index.docbook:18: element surname: validity error : No declaration for element surname
<surname>Gruber</surname>
                         ^
index.docbook:20: element email: validity error : No declaration for element email
<address><email><email address hidden></email></address>
                                                     ^
index.docbook:20: element address: validity error : No declaration for element address
<address><email><email address hidden></email></address>
                                                               ^
index.docbook:21: element affiliation: validity error : No declaration for element affiliation
</affiliation>
              ^
index.docbook:22: element author: validity error : No declaration for element author
</author>
         ^
index.docbook:24: element authorgroup: validity error : No declaration for element authorgroup
</authorgroup>
              ^
index.docbook:27: element year: validity error : No declaration for element year
<year>2003</year>
                 ^
index.docbook:28: element holder: validity error : No declaration for element holder
<holder>Robert Gruber</holder>
                              ^
index.docbook:29: element copyright: validity error : No declaration for element copyright
</copyright>
            ^
index.docbook:31: parser error : Entity 'FDLNotice' not defined
<legalnotice>&FDLNotice;</legalnotice>
                        ^
index.docbook:31: element legalnotice: validity error : No declaration for element legalnotice
<legalnotice>&FDLNotice;</legalnotice>
                                      ^
index.docbook:33: element date: validity error : No declaration for element date
<date>2002-03-29</date>
                       ^
index.docbook:34: element releaseinfo: validity error : No declaration for element releaseinfo
<releaseinfo>1.00.00</releaseinfo>
                                  ^
index.docbook:38: element command: validity error : No declaration for element command
<command>sudo</command> command.</para></abstract>
                       ^
index.docbook:38: element para: validity error : No declaration for element para
<command>sudo</command> command.</para></abstract>
                                       ^
index.docbook:38: element abstract: validity error : No declaration for element abstract
<command>sudo</command> command.</para></abstract>
                                                  ^
index.docbook:41: element keyword: validity error : No declaration for element keyword
<keyword>KDE</keyword>
                      ^
index.docbook:42: element keyword: validity error : No declaration for element keyword
<keyword>sudo</keyword>
                       ^
index.docbook:43: element keyword: validity error : No declaration for element keyword
<keyword>password</keyword>
                           ^
index.docbook:44: element keyword: validity error : No declaration for element keyword
<keyword>root</keyword>
                       ^
index.docbook:45: element keywordset: validity error : No declaration for element keywordset
</keywordset>
             ^
index.docbook:47: element bookinfo: validity error : No declaration for element bookinfo
</bookinfo>
           ^
index.docbook:49: element chapter: validity error : No declaration for attribute id of element chapter
<chapter id="introduction">
                          ^
index.docbook:50: element title: validity error : No declaration for element title
<title>Introduction</title>
                           ^
index.docbook:53: element command: validity error : No declaration for element command
<command>su</command> command for the K Desktop Environment.
                     ^
index.docbook:56: element command: validity error : No declaration for element command
the system's <command>sudo</command> command.</para>
                                    ^
index.docbook:56: element para: validity error : No declaration for element para
the system's <command>sudo</command> command.</para>
                                                    ^
index.docbook:59: element filename: validity error : No declaration for element filename
from <filename>.desktop</filename> files.</para>
                                  ^
index.docbook:59: element para: validity error : No declaration for element para
from <filename>.desktop</filename> files.</para>
                                                ^
index.docbook:61: element chapter: validity error : No declaration for element chapter
</chapter>
          ^
index.docbook:63: element chapter: validity error : No declaration for attribute id of element chapter
<chapter id="using-kdesu">
                         ^
index.docbook:64: element title: validity error : No declaration for element title
<title>Using &kdesudo;</title>
                              ^
index.docbook:66: element para: validity error : No declaration for element para
<para>Usage of &kdesudo; is easy. The syntax is like this:</para>
                                                                 ^
index.docbook:69: element command: validity error : No declaration for element command
      <command>kdesudo</command>
                                ^
index.docbook:70: element replaceable: validity error : No declaration for element replaceable
      <arg>-u <replaceable>RUNAS</replaceable></arg>
                                              ^
index.docbook:70: element arg: validity error : No declaration for element arg
      <arg>-u <replaceable>RUNAS</replaceable></arg>
                                                    ^
index.docbook:71: element arg: validity error : No declaration for element arg
      <arg>COMMAND</arg>
                        ^
index.docbook:72: element cmdsynopsis: validity error : No declaration for element cmdsynopsis
    </cmdsynopsis>
                  ^
index.docbook:74: element para: validity error : No declaration for element para
<para>The command line options are explained below.</para>
                                                          ^
index.docbook:79: element option: validity error : No declaration for element option
<term><option>COMMAND</option></term>
                              ^
index.docbook:79: element term: validity error : No declaration for element term
<term><option>COMMAND</option></term>
                                     ^
index.docbook:80: element command: validity error : No declaration for element command
<listitem><para>This is the command that <command>sudo</command> will execute.</
                                                                ^
index.docbook:80: element para: validity error : No declaration for element para
item><para>This is the command that <command>sudo</command> will execute.</para>
                                                                               ^
index.docbook:80: element listitem: validity error : No declaration for element listitem
>This is the command that <command>sudo</command> will execute.</para></listitem
                                                                               ^
index.docbook:81: element varlistentry: validity error : No declaration for element varlistentry
</varlistentry>
               ^
index.docbook:84: element replaceable: validity error : No declaration for element replaceable
<term><option>-u <replaceable>RUNAS</replaceable></option></term>
                                                 ^
index.docbook:84: element option: validity error : No declaration for element option
<term><option>-u <replaceable>RUNAS</replaceable></option></term>
                                                          ^
index.docbook:84: element term: validity error : No declaration for element term
<term><option>-u <replaceable>RUNAS</replaceable></option></term>
                                                                 ^
index.docbook:86: element para: validity error : No declaration for element para
is specified at RUNAS</para></listitem>
                            ^
index.docbook:86: element listitem: validity error : No declaration for element listitem
is specified at RUNAS</para></listitem>
                                       ^
index.docbook:87: element varlistentry: validity error : No declaration for element varlistentry
</varlistentry>
               ^
index.docbook:89: element variablelist: validity error : No declaration for element variablelist
</variablelist>
               ^
index.docbook:91: element chapter: validity error : No declaration for element chapter
</chapter>
          ^
index.docbook:93: element chapter: validity error : No declaration for attribute id of element chapter
<chapter id="Author">
                    ^
index.docbook:94: element title: validity error : No declaration for element title
<title>Author</title>
                     ^
index.docbook:96: element para: validity error : No declaration for element para
<para>&kdesudo;</para>
                      ^
index.docbook:98: element para: validity error : No declaration for element para
<para>Copyright 2003 Robert Gruber</para>
                                         ^
index.docbook:101: element email: validity error : No declaration for element email
<email><email address hidden></email>. Please report any bugs you
                                            ^
index.docbook:103: element para: validity error : No declaration for element para
to contact me.</para>
                     ^
index.docbook:105: parser error : Entity 'underFDL' not defined
&underFDL;
          ^
index.docbook:106: parser error : Entity 'underGPL' not defined
&underGPL;
          ^
index.docbook:108: element chapter: validity error : No declaration for element chapter
</chapter>
          ^
index.docbook:110: element appendix: validity error : No declaration for attribute id of element appendix
<appendix id="installation">
                           ^
index.docbook:111: element title: validity error : No declaration for element title
<title>Installation</title>
                           ^
index.docbook:113: element sect1: validity error : No declaration for attribute id of element sect1
<sect1 id="downloading">
                       ^
index.docbook:114: element title: validity error : No declaration for element title
<title>Downloading</title>
                          ^
index.docbook:116: parser error : Entity 'install.intro.documentation' not defined
&install.intro.documentation;
                             ^
index.docbook:118: element sect1: validity error : No declaration for element sect1
</sect1>
        ^
index.docbook:120: element sect1: validity error : No declaration for attribute id of element sect1
<sect1 id="compiling">
                     ^
index.docbook:121: element title: validity error : No declaration for element title
<title>Compiling</title>
                        ^
index.docbook:123: parser error : Entity 'install.compile.documentation' not defined
&install.compile.documentation;
                               ^
index.docbook:125: element sect1: validity error : No declaration for element sect1
</sect1>
        ^
index.docbook:126: element appendix: validity error : No declaration for element appendix
</appendix>
           ^
index.docbook:128: element book: validity error : No declaration for element book
</book>
       ^
make[3]: *** [doc/en/index.cache.bz2] Error 1
make[3]: Leaving directory `/build/buildd/kdesudo-3.4.2.3/obj-x86_64-linux-gnu'
make[2]: *** [doc/en/CMakeFiles/en-handbook.dir/all] Error 2
make[2]: Leaving directory `/build/buildd/kdesudo-3.4.2.3/obj-x86_64-linux-gnu'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/build/buildd/kdesudo-3.4.2.3/obj-x86_64-linux-gnu'
dh_auto_build: make -j1 returned exit code 2
make: *** [build] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2