Links to identically named global functions

Hi all,

suppose I have several global functions with the same name, each in a 
different file. A typical example may be main() - is it possible to 
create links to main() inside a specific file?

I know that in case of modules I can easily distinguish by saying 
"module_a::main()", but I would need something like file.f::main(). 
Thanks for any comments.

Best regards,

Petr

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