Bug#1045155: libtommath: Fails to build source after successful build

[Lucas Nussbaum]

Source: libtommath
Version: 1.2.0-6
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 libtommath
> dpkg-buildpackage: info: source version 1.2.0-6
> dpkg-buildpackage: info: source distribution unstable
> dpkg-buildpackage: info: source changed by Dominique Dumont <dod at debian.org>
>  dpkg-source --before-build .
>  fakeroot debian/rules clean
> dh clean
>    dh_auto_clean
> 	make -j8 clean
> make[1]: Entering directory '/<<PKGBUILDDIR>>'
> rm -f *.gcda *.gcno *.gcov *.bat *.o *.a *.obj *.lib *.exe *.dll etclib/*.o \
> 			demo/*.o test timing mtest_opponent mtest/mtest mtest/mtest.exe tuning_list \
> 			*.s mpi.c *.da *.dyn *.dpi tommath.tex `find . -type f | grep [~] | xargs` *.lo *.la
> rm -rf .libs/ demo/.libs
> make -C etc/ clean MAKE=make
> make[2]: Entering directory '/<<PKGBUILDDIR>>/etc'
> rm -f *.log *.o *.obj *.exe pprime tune mersenne drprime mont 2kprime pprime.dat \
>         tuning_list multiplying squaring test *.da *.dyn *.dpi *~
> rm -rf .libs
> make[2]: Leaving directory '/<<PKGBUILDDIR>>/etc'
> make -C doc/ clean MAKE=make
> make[2]: Entering directory '/<<PKGBUILDDIR>>/doc'
> rm -f *.idx *.toc *.log *.aux *.dvi *.lof *.ind *.ilg *.ps *.log tommath.tex
> make[2]: Leaving directory '/<<PKGBUILDDIR>>/doc'
> make[1]: Leaving directory '/<<PKGBUILDDIR>>'
>    debian/rules override_dh_clean
> make[1]: Entering directory '/<<PKGBUILDDIR>>'
> dh_clean doc/tommath.out demo/.libs/ demo/demo.lo libtommath.pc debian/libtool/
> # move back the built doc shipped in tarball
> for i in /<<PKGBUILDDIR>>/doc/*.pdf.dod; do if [ -e $i ] ; then mv $i ${i%%.dod}; fi; done
> make[1]: Leaving directory '/<<PKGBUILDDIR>>'
>  dpkg-source -b .
> dpkg-source: info: using source format '3.0 (quilt)'
> dpkg-source: info: verifying ./libtommath_1.2.0.orig.tar.xz.asc
> gpgv: Signature made Tue Oct 22 09:50:30 2019 UTC
> gpgv:                using DSA key AF0CB17621EDAD72
> gpgv: Note: signatures using the SHA1 algorithm are rejected
> gpgv: Can't check signature: Bad public key
> dpkg-source: warning: cannot verify upstream tarball signature for ./libtommath_1.2.0.orig.tar.xz: no acceptable signature found
> dpkg-source: info: building libtommath using existing ./libtommath_1.2.0.orig.tar.xz
> dpkg-source: info: building libtommath using existing ./libtommath_1.2.0.orig.tar.xz.asc
> dpkg-source: info: using patch list from debian/patches/series
> dpkg-source: warning: ignoring deletion of directory pre_gen
> dpkg-source: warning: ignoring deletion of file pre_gen/mpi.c, use --include-removal to override
> dpkg-source: error: cannot represent change to doc/bn.pdf: binary file contents changed
> dpkg-source: error: add doc/bn.pdf in debian/source/include-binaries if you want to store the modified binary in the debian tarball
> dpkg-source: error: unrepresentable changes to source
> dpkg-buildpackage: error: dpkg-source -b . subprocess returned exit status 1
> 
> 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/libtommath_1.2.0-6_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.