Bug#1019721: libopenmpi-dev: Cannot uninstall rmdir: failed to remove '/usr/lib/x86_64-linux-gnu/fortran/gfortran': No such file or directory

[Andreas Metzler <ametzler@bebt.de>]

Package: libopenmpi-dev
Version: 4.1.4-2
Severity: serious

Hello,

it seems to be impossible to uninstall libopenmpi-dev:
(sid)root@argenau:/# dpkg --purge libopenmpi-dev
(Reading database ... 25167 files and directories currently installed.)
Removing libopenmpi-dev:amd64 (4.1.4-2) ...
rmdir: failed to remove '/usr/lib/x86_64-linux-gnu/fortran/gfortran': No such file or directory
dpkg: error processing package libopenmpi-dev:amd64 (--purge):
[...]

Looking at the postrm script we find:
(sid)root@argenau:/# grep ^rmdir /var/lib/dpkg/info/libopenmpi-dev\:amd64.postrm 
rmdir --ignore-fail-on-non-empty /usr/lib/$multiarch/fortran/gfortran
rmdir --ignore-fail-on-non-empty /usr/lib/$multiarch/fortran/gfortran
rmdir --ignore-fail-on-non-empty /usr/lib/$multiarch/fortran/gfortran
rmdir --ignore-fail-on-non-empty /usr/lib/$multiarch/fortran/gfortran
rmdir --ignore-fail-on-non-empty /usr/lib/$multiarch/fortran/gfortran

i.e. rmdir is run unconditiionally multiple times on the same directory,
the first instance succeeds, the second one fails.

This is #1019050 in dh-fortran-mod which is now fixed. However
libopenmpi-dev 4.1.4-2 contains the broken code generated by
dh-fortran-mod and needs a rebuild against dh-fortran-mod (0.27) and
should not propagate to testing.

Is there a way to find all packages built against broken dh-fortran-mod
so all affected packages can be rebuilt?

cu Andreas