Interesting. I copied your code and tried to run on my machine and got an error. Perhaps this is due to the fact I'm running on Perl 5.005.

gonzo:/export/home/fredk/docs/test: more foo.pl
#!/usr/local/bin/perl

use strict; 

package foo; 
sub bar { print "Works\n"; } 

package main; 
my $var = "bar"; 
foo->$var;

gonzo:/export/home/fredk/docs/test: ./foo.pl 
syntax error at ./foo.pl line 10, near "$var;"
Execution of ./foo.pl aborted due to compilation errors.
[download]

UPDATE

This works if I change foo->$var to foo->$var();

Can someone confirm this is a 5.005 thing?

-------------------------------------
Nothing is too wonderful to be true
-- Michael Faraday