checking for perl >= 5.8.1... 5.16.1 checking for perl5... no checking for perl... perl checking for perl module URI::Escape... no checking for perl module URI::file... no checking for perl module URI::URL... no configure: error: Atleast one of the required Perl modules (URI::Escape, URI::file and URI::URL) was not found on your system For some reason the RDEPEND dev-perl/URI is not 'picked up' as DEPEND. This is resolved after manually installing dev-perl/URI. Before that I had run perl-cleaner.
The dependency is already there. Unless you have a complete output of perl-cleaner failing to pick up URI, there isn't much we can do.