Bug#789066: libcarp-datum-perl: FTBFS with perl 5.22: Can't use 'defined(%hash)'

[Dominic Hargreaves]

Source: libcarp-datum-perl
Version: 1:0.1.3-6
Severity: important
User: debian-perl at lists.debian.org
Usertags: perl-5.22-transition
Tags: sid stretch upstream

This package FTBFS with perl 5.22 (currently in experimental):

PERL_DL_NONLAZY=1 "/usr/bin/perl" "-MExtUtils::Command::MM" "-MTest::Harness" "-e" "undef *Test::Harness::Switches; test_harness(1, 'blib/lib', 'blib/arch')" t/*.t
Can't use 'defined(%hash)' (Maybe you should just omit the defined()?) at /«PKGBUILDDIR»/blib/lib/Carp/Datum.pm line 318.

...

This bug will become release critical nearer the time of the perl 5.22
migration, expected during the (northern hemisphere) summer.

Cheers,
Dominic.