Package: libsoftware-license-perl
Version: 0.103010-3
Severity: important
Tags: upstream
X-Debbugs-Cc: debian-perl@lists.debian.org

As seen at <http://spdx.org/licenses/>, there are three variants
of the Artistic license version 1.0 around.

http://spdx.org/licenses/Artistic-1.0
http://spdx.org/licenses/Artistic-1.0-Perl
http://spdx.org/licenses/Artistic-1.0-cl8

The one that is shipped with Perl in the top level "Artistic" file (and
that is included in /usr/share/common-licenses on Debian) is the one
called "Artistic-1.0-Perl", but Software::License has "Artistic-1.0",
which has a different number of clauses and some other more or less
subtle differences.

A crude way to tell these apart is
    /7\.\s*C subroutines/ and out("Artistic-1.0-Perl");
    /8\.\s*The name of the Copyright Holder/ and out("Artistic-1.0");
    /8\.\s*Aggregation of this Package/ and out("Artistic-1.0-cl8");

I'm attaching an even cruder script that can be run on a number of files
and uses the above heuristics. Maybe it's useful to somebody.

It seems to me that at least Software::License::Perl_5 should use
Artistic-1.0-Perl instead, and that Software::License::Artistic_1_0
should possibly default to Artistic-1.0-Perl.

This affects quite a few CPAN distributions using Dist::Zilla and
generating top level LICENSE files. If the author requests the same
terms as Perl itself, generating a different copy of the license than
the one in the Perl distribution seems to be incorrect.