if (defined eval "require My::Module") {

If the name of the module is constant, you should use eval BLOCK instead of eval STRING: 

if (defined eval { require My::Module }) {

[download]
Apart from that, your approach is very common, and I have yet to see a better way to do it. 

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In reply to Re: Best way to check for installed module by Juerd
in thread Best way to check for installed module by jmay

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