Bug#918442: perl6-readline: FTBFS (Operation "cmp": no method found)

[Santiago Vila]

Package: src:perl6-readline
Version: 0.1.4-3
Severity: serious
Tags: ftbfs

Dear maintainer:

I tried to build this package in buster but it failed:

--------------------------------------------------------------------------------
[...]
 debian/rules build-indep
dh build-indep --with perl6
   dh_update_autotools_config -i
   dh_autoreconf -i
   dh_perl6_test -i
	/usr/bin/prove6 -l
t/01-load.t .. ok
t/02-base.t .. ok
All tests successful.
Files=2, Tests=18,  41 wallclock secs
Result: PASS
   create-stamp debian/debhelper-build-stamp
 fakeroot debian/rules binary-indep
dh binary-indep --with perl6
   dh_testroot -i
   dh_prep -i
   dh_install -i
   dh_perl6_depsfile -i
Operation "cmp": no method found,
	left argument in overloaded package Debian::Dependency,
	right argument in overloaded package Debian::Dependency at /usr/bin/dh_perl6_depsfile line 39.
make: *** [debian/rules:4: binary-indep] Error 25
dpkg-buildpackage: error: fakeroot debian/rules binary-indep subprocess returned exit status 2
--------------------------------------------------------------------------------

The build was made in my autobuilder with "dpkg-buildpackage -A"
but it also fails here:

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/perl6-readline.html

where you can get a full build log if you need it.

If this is really a bug in one of the build-depends, please use reassign and affects,
so that this is still visible in the BTS web page for this package.

Thanks.