The perceived weirdness is not with defined, but a side effect of how use works.

Basically, use works at compile time, while your if statement is a runtime thing. The documentation for use also shows you what to do to import modules at runtime:

    if( ... ) {
         require Module;
         Module->import( ... );
    };

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In reply to Re: defined weirdness by Corion
in thread defined weirdness by natxo

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