$ ./client-gui.pl
Can't locate Gtk2/GSignal.pm in @INC (@INC contains: /usr/local/lib/perl5/5.10.1/BSDPAN /usr/local/lib/perl5/site_perl/5.10.1/mach /usr/local/lib/perl5/site_perl/5.10.1 /usr/local/lib/perl5/5.10.1/mach /usr/local/lib/perl5/5.10.1 .) at ./client-gui.pl line 13.
BEGIN failed--compilation aborted at ./client-gui.pl line 13.
$