Binary package “libextutils-makemaker-cpanfile-perl” in ubuntu focal

Perl module adding cpanfile support to ExtUtils-MakeMaker

 ExtUtils::MakeMaker::CPANfile loads cpanfile in your distribution and
 modifies parameters for WriteMakefile in your Makefile.PL. Just use it
 instead of ExtUtils::MakeMaker (which should be loaded internally), and
 prepare cpanfile.