Bug#1020490: libffi8: Broken on multiarch systems

[Giacomo Mulas]

Package: libffi8
Version: 3.4.3-1
Severity: normal

Dear Maintainer,

the latest update of libffi8 is uninstallable on multiarch systems.
It provides libffi8ubuntu1, but it also breaks it. Therefore, if the
library for more than one arch is installed on the system, the version
for one arch conflicts with all others, making it unconfigurable.

i.e.
dpkg: dependency problems prevent configuration of libffi8:amd64:
libffi8:i386 (3.4.3-1) breaks libffi8ubuntu1 and is unpacked but not configured.
libffi8:amd64 (3.4.3-1) provides libffi8ubuntu1.

dpkg: error processing package libffi8:amd64 (--configure):
dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of libffi8:i386:
libffi8:amd64 (3.4.3-1) breaks libffi8ubuntu1 and is unpacked but not configured.
libffi8:i386 (3.4.3-1) provides libffi8ubuntu1.

dpkg: error processing package libffi8:i386 (--configure):
dependency problems - leaving unconfigured

If only one arch is installed, then things work. But this is obviously a
serious issue for almost any amd64 installation that also wants to be able
to have a fairly complete i386 runtime.

Best regards
Giacomo Mulas

-- System Information:
Debian Release: bookworm/sid
APT prefers unstable
APT policy: (401, 'unstable'), (10, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.19.0-1-amd64 (SMP w/12 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=it_IT.UTF-8, LC_CTYPE=it_IT.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libffi8 depends on:
ii libc6 2.34-8

libffi8 recommends no packages.

libffi8 suggests no packages.

-- no debconf information