[GENERAL] Is this a "Stupid Question" ?

[Adam Smith]

I have posted this and similar questions repeatedly and can't even raise 
a single response. I am being led to believe that this then 'Must be a 
stupid question' although people say that there is no stupid question. 
Is that another for political correctness

I am attempting an install of 7.4.3 on FreeBSD O/S 4.9, apparently 
remnants of 7.3.x are scattered around on the disk from (a) previous 
ports installation, causing mutex_lock/unlock, libpq.so and other 
installation problems. I want to reconfigure and reinstall. How do I 
know what, & where all these fragments are located or how do I uninstall 
all of them or at least those that should be removed.

Thanks
--  Adam  --
PS I should probably use the name Eve instead!
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