userX@myserver ~/script> perl -c scriptX.pl 
Weak references are not implemented in the version of perl at /home/userX/script/pm/Net-SSH-Perl-1.30/lib/Net/SSH/Perl/Packet.pm line 22
BEGIN failed--compilation aborted at /home/userX/script/pm/Net-SSH-Perl-1.30/lib/Net/SSH/Perl/Packet.pm line 22.
BEGIN failed--compilation aborted at /home/userX/script/pm/Net-SSH-Perl-1.30/lib/Net/SSH/Perl.pm line 6.