Bug#1047071: xvkbd: Fails to build source after successful build

[Lucas Nussbaum]

Source: xvkbd
Version: 4.1-2
Severity: minor
Tags: trixie sid ftbfs
User: lucas at debian.org
Usertags: ftbfs-sab-20230813 ftbfs-source-after-build
User: debian-qa at lists.debian.org
Usertags: qa-doublebuild

Hi,

This package fails to build a source package after a successful build
(dpkg-buildpackage ; dpkg-buildpackage -S).

This is probably a clear violation of Debian Policy section 4.9 (clean target),
but this is filed as severity:minor for now, because a discussion on
debian-devel showed that we might want to revisit the requirement of a working
'clean' target.

More information about this class of issues, included common problems and
solutions, is available at
https://wiki.debian.org/qa.debian.org/FTBFS/SourceAfterBuild

Relevant part of the build log:
> cd /<<PKGBUILDDIR>> && runuser -u user42 -- dpkg-buildpackage --sanitize-env -us -uc -rfakeroot -S
> ---------------------------------------------------------------------------------------------------------------
> 
> dpkg-buildpackage: info: source package xvkbd
> dpkg-buildpackage: info: source version 4.1-2
> dpkg-buildpackage: info: source distribution unstable
> dpkg-buildpackage: info: source changed by Samuel Thibault <sthibault at debian.org>
>  dpkg-source --before-build .
>  debian/rules clean
> dh clean
>    dh_auto_clean
> 	make -j8 distclean
> make[1]: Entering directory '/<<PKGBUILDDIR>>'
> make clean
> make[2]: Entering directory '/<<PKGBUILDDIR>>'
> make[2]: warning: jobserver unavailable: using -j1.  Add '+' to parent make rule.
> rm -f *~ *.bak
> make[2]: Leaving directory '/<<PKGBUILDDIR>>'
> rm -rf autom4te.cache *.o *.log Makefile
> rm -f xvkbd-*.tar.gz
> [ -f Makefile.docs ] && make -f Makefile.docs cleandir
> make[1]: *** [Makefile:1042: distclean] Error 1
> make[1]: Leaving directory '/<<PKGBUILDDIR>>'
> dh_auto_clean: error: make -j8 distclean returned exit code 2
> make: *** [debian/rules:9: clean] Error 25
> dpkg-buildpackage: error: debian/rules clean subprocess returned exit status 2
> 
> E: Command 'cd /<<PKGBUILDDIR>> && runuser -u user42 -- dpkg-buildpackage --sanitize-env -us -uc -rfakeroot -S' failed to run.


The full build log is available from:
http://qa-logs.debian.net/2023/08/13/xvkbd_4.1-2_unstable.log

If you reassign this bug to another package, please mark it as 'affects'-ing
this package. See https://www.debian.org/Bugs/server-control#affects

If you fail to reproduce this, please provide a build log and diff it with mine
so that we can identify if something relevant changed in the meantime.