[PATCH 3/3, newlib] Allow locking routine to be retargeted

[Freddie Chopin]

On Thu, 2017-02-02 at 17:16 +0100, Freddie Chopin wrote:
> On Thu, 2017-02-02 at 10:21 +0000, Thomas Preudhomme wrote:
> > Ooops, forgot about this. Please find an updated patch attached.
> 
> Unfortunately it still fails:
> ...

Please ignore this e-mail - this was probably an user error (; I'm
testing that again. Sorry for the noise.

Regards,
FCh