r - Require lib.loc and Required base packages -

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say have set of external packages in folder x. , want load 1 of these packages, example through 

require(my.package, lib.loc='x')

any requirement (dependency) of my.package external, looked in same folder x. base packages? need copy base packages folder x or r fallback default folder despite different lib.loc specified?

so tried right new set , observed @ least on mac os x, base packages still included default lib path.


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