There is an ongoing outage on the primary CPAN mirror. It is possible to work around the issue by using MetaCPAN as a mirror.
No POD found for config_h.sample. Time to read the source?
config_h.sample
To install subs, copy and paste the appropriate command in to your terminal.
cpanm
cpanm subs
CPAN shell
perl -MCPAN -e shell install subs
For more information on module installation, please visit the detailed CPAN module installation guide.