Um...did you try that...doesn't work here...

> perl -e '
use v5.12;     
use strict;
use warnings;
             
@File::Spectacles::ISA = "File::Spec";
say File::Spectacles->tmpdir;'        
Can't locate package File::Spec for @File::Spectacles::ISA at -e line 
+7.
Can't locate package File::Spec for @File::Spectacles::ISA at -e line 
+7.
Can't locate object method "tmpdir" via package "File::Spectacles" at 
+-e line 7.
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Vs. if you put the use in:

> perl -e '
use File::Spec;
use v5.12;
use strict;
use warnings;

@File::Spectacles::ISA = "File::Spec";
say File::Spectacles->tmpdir;'
/tmp
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I've always had to put in a 'use' before it would work... But your perl may be different (works without pre-declaring things.)...hmmm.... I'm using 5.16.2...BTW...maybe this is something that changed, though I seem to remember it being around for a while...?? But then I remember the easter bunny just like it was yes...er...scratch that.

Um... So did you actually try your example? -- didn't work here. Sorry... :-(