Subject: | BUILD_REQUIRES |
Win32::Pipe and Win32::Process only appear to be used for testing, and should therefore be moved to BUILD_REQUIRES from PREREQ_PM. Better yet, if they can be made into recommended dependencies, and the test which rely on them skipped if they are not available.
http://blogs.perl.org/users/neilb/2017/04/specifying-the-type-of-your-cpan-dependencies.html
Cheers!