Starting with commit 1cf2d7357c lxc is
failing on aarch64 only. For whatever reason, the version check done
on docbook2man here is no longer registering as >=0.8.8
3efa1c3037/meson.build (L323)
This falls through to this line, which changes the behavior of the
configured sgml header.
3efa1c3037/meson.build (L327)
Instead of figuring out /why/ this is the case, I'm just going to skip
the check for lxc since we won't ever ship docbook2x < 0.8.
184637940b