My thanks Perrin and Derby,
I appreciate you bothering to look into this on my account, I'm annoyed I didn't look further and spot it myself.
My fix is simply the below, inside the &build_subs() loop:
next if exists &$_;
It appears to work, so I'm hoping this is the correct course of action.
Thanks again Monks,
JP
-- Alexander Widdlemouse undid his bellybutton and his bum dropped off --
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