[49 root@xxx:~/Downloads/CPAN-1.9402]$ perl Makefile.PL 
Importing PAUSE public key into your GnuPG keychain... done!
(You may wish to trust it locally with 'gpg --lsign-key 450F89EC')
WARNING: SIGN is not a known parameter.
Checking if your kit is complete...
Looks good
'SIGN' is not a known MakeMaker parameter name.
Writing Makefile for CPAN