Subject: | Do not use PREREQ_FATAL |
If PREREQ_FATAL is set to a true value, then installers like CPAN.pm or cpanminus cannot do automatic dependency resolution anymore. Therefore PREREQ_FATAL should never be set. If you think you need one of these dependencies already in the "perl Makefile.PL" phase, then you should specify these as configure_requires in the META.* files.