man ExtUtils::MY (3): ExtUtils::MakeMaker subclass for customization

SYNOPSIS

# in your Makefile.PL
sub MY::whatever {
...
}

FOR INTERNAL USE ONLY

ExtUtils::MY is a subclass of ExtUtils::MM. Its provided in your Makefile.PL for you to add and override MakeMaker functionality.

It also provides a convenient alias via the MY class.

ExtUtils::MY might turn out to be a temporary solution, but MY won't go away.