The error output of the eval block is caught in the $@ variable, that's why you don't see any error message. Leave out the 'die', and try this:
if ($@){
die "Tk not installed. Can't run GUI. Error returned: $@\n";
}

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In reply to Re: using 'use' conditionally by dilbert
in thread using 'use' conditionally by xafwodahs

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