`team/pkg-perl/xs-abi/legacy-vendorarch-directory`

Since 5.20, Debian perl packages use different directory for placing XS libraries, which varies by API version and possibly architecture. Files placed in the previously used directory (/usr/lib/perl5) will not be used by perl. The build system needs to be fixed to use the value $Config{vendorarch} (available from the Config module) instead of hardcoding the directory.

See Perl Policy 4.1.