The latest Ubuntu LTS release includes Perl 5.18. One of the main noticeable consequences of this is that some 5.10 features are now marked as experimental, and hence warnings appear everywhere. One example could be the use of '~~' (C4/Search.pm:536). These warnings can be avoided using the following pragma [1]: no if $] >= 5.018, 'warnings', "experimental::feature_name"; I'd like to know your opinion on how to cope with this. I guess we already had this kind of problems in the past. Regards To+ [1] http://search.cpan.org/dist/perl-5.18.0/pod/perldelta.pod#Lexical_$__is_now_... -- Tomás Cohen Arazi Prosecretaría de Informática Universidad Nacional de Córdoba ✆ +54 351 4333190 ext 13168 GPG: B76C 6E7C 2D80 551A C765 E225 0A27 2EA1 B2F3 C15F