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Date:	Wed, 02 Aug 2017 06:04:50 +0300
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	on Wed, 2 Aug 2017 00:06:23 +0200)
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> From: Hans-Bernhard Bröker <HBBroeker AT t-online DOT de>
> Date: Wed, 2 Aug 2017 00:06:23 +0200
> 
> > If I'm right, then libiberty has no business declaring functions with
> > such names.
> 
> That depends on the answer to the following question: what, exactly, is 
> -liberty?  Is it supplying bits and pieces of the implementation that 
> are missing in the underlying libc, or is it ordinary user code?  In the 
> former case it would be allowed to declare a global _doprint, otherwise not.
> 
> It's been a while, but I seem to recall -liberty intended to be the former.

AFAIU, it cannot be the former.  The Standard doesn't acknowledge the
existence of such entities.  There's only one "implementation" at any
given point, and that's the Standard C library and its header files.
Everything else is in the application realm.

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