libc_hidden_proto removal en masse

[Bernd Schmidt]

Carmelo AMOROSO wrote:

> I'd like to highlight that we need to fix the testsuite build system.
> I've sent a patch recently putting together some suggestions by Bernard, 
> Bernd and others. I'd like to have it reviewed so that it can be merged in.

I had missed that in the old thread.  The patch looks OK to me.


Bernd
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