The second one gives you "error 500" because you left out the second quotation mark for the string eval. Also, I'm guessing you're doing this on a web server since Perl itself doesn't sprout error 500. If it's under mod_perl, I wonder if there is a scoping problem. Do you use strict and warnings?

In reply to Re: disable functions if module not installed by kyle
in thread disable functions if module not installed by lepetitalbert

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