Devel::Cover is failing to build on most versions of Perl 5 blead (5.25.-*).
See
http://matrix.cpantesters.org/?dist=Devel-Cover, where most reports
are ending as UNKNOWN or FAIL for 5.25.2 and later.
Today, while testing the proposed -Ddefault_inc_excludes_dot switch, I
build perl 5, installed 'cpanm' against that perl, and invoked 'cpanm'
to install the modules I use all the time. Devel::Cover failed during
'make'. I'm attaching (a) an excerpt from the cpanm build log; and (b)
most of the output of perl -V for this build.
Thank you very much.
Jim Keenan