Bug#1149417: elogind: FTBFS: lxml.etree.XMLSyntaxError: Entity 'entities' not defined, line 5, column 11

[Santiago Vila]

Package: src:elogind
Version: 255.17-1debian7
Severity: serious
Tags: ftbfs forky sid

Dear maintainer:

During a rebuild of all packages in unstable, this package failed to build.

Below you will find the last part of the build log (probably the most
relevant part, but not necessarily). If required, the full build log
is available here:

https://people.debian.org/~sanvila/build-logs/202609/

About the archive rebuild: The build was made on virtual machines from AWS,
using sbuild and a reduced chroot with only build-essential packages.

If you cannot reproduce the bug please contact me privately, as I
am willing to provide ssh access to a virtual machine where the bug is
fully reproducible.

If this is really a bug in one of the build-depends, please use
reassign and add an affects on src:elogind, so that this is still
visible in the BTS web page for this package.

Thanks.

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[...]
  File "src/lxml/parser.pxi", line 1231, in lxml.etree._BaseParser._parseDocFromFile
  File "src/lxml/parser.pxi", line 647, in lxml.etree._ParserContext._handleParseResultDoc
  File "src/lxml/parser.pxi", line 765, in lxml.etree._handleParseResult
  File "src/lxml/parser.pxi", line 689, in lxml.etree._raiseParseError
  File "../man/elogind.syntax.xml", line 5
lxml.etree.XMLSyntaxError: Entity 'entities' not defined, line 5, column 11

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/<<PKGBUILDDIR>>/tools/make-directive-index.py", line 174, in <module>
    _xml = make_page(_template_path, _xml_files)
  File "/<<PKGBUILDDIR>>/tools/make-directive-index.py", line 166, in make_page
    raise ValueError("failed to process " + page) from e
ValueError: failed to process ../man/elogind.syntax.xml
ninja: build stopped: subcommand failed.
dh_auto_build: error: cd build && LC_ALL=C.UTF-8 ninja -j1 -v returned exit code 1
make: *** [debian/rules:51: binary] Error 25
dpkg-buildpackage: error: debian/rules binary subprocess failed with exit status 2
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