Hmm, another package showing this behavior (and - unlike apparmor - in a reproducible way) is linux-tools:
``` dpkg-shlibdeps: error: no dependency information found for /usr/libx32/libc.so.6 (used by debian/linux-perf-4.2/usr/lib/perf_4.2-core/perf-read-vdsox32) Hint: check if the library actually comes from a package. dh_shlibdeps: dpkg-shlibdeps -Tdebian/linux-perf-4.2.substvars debian/linux-perf-4.2/usr/lib/traceevent_4.2/plugins/plugin_jbd2.so debian/linux-perf-4.2/usr/lib/traceevent_4.2/plugins/plugin_hrtimer.so debian/linux-perf-4.2/usr/lib/traceevent_4.2/plugins/plugin_kmem.so debian/linux-perf-4.2/usr/lib/traceevent_4.2/plugins/plugin_kvm.so debian/linux-perf-4.2/usr/lib/traceevent_4.2/plugins/plugin_mac80211.so debian/linux-perf-4.2/usr/lib/traceevent_4.2/plugins/plugin_sched_switch.so debian/linux-perf-4.2/usr/lib/traceevent_4.2/plugins/plugin_function.so debian/linux-perf-4.2/usr/lib/traceevent_4.2/plugins/plugin_xen.so debian/linux-perf-4.2/usr/lib/traceevent_4.2/plugins/plugin_scsi.so debian/linux-perf-4.2/usr/lib/traceevent_4.2/plugins/plugin_cfg80211.so debian/linux-perf-4.2/usr/lib/perf_4.2-core/perf-read-vdso32 debian/linux-perf-4.2/usr/lib/perf_4.2-core/perf-read-vdsox32 debian/linux-perf-4.2/usr/bin/perf_4.2 returned exit code 2 debian/rules.real:45: recipe for target 'install-perf' failed ``` Can you reproduce this?