perl Makefile.PL # Maybe some option here? os=all|Linux|AIX|RHEL|Suse
make             # To get everything or things covered with option
                 # And if option is not possible:
make Linux       # To get Base plus all Linux stuff
make RHEL        # To get Base plus Linux.pm plus RHEL.pm
make Suse        # To get Base plus Linux.pm plus Suse.pm
make AIX         # To get Base plus AIX.pm
make test        # To test all related tests
make install     # To install only selected modules