[PATCH] Automated the generation of the __NEWLIB__, __NEWLIB_MINOR__ and __NEWLIB_PATCHLEVEL__ macros.

[Pieter du Preez]

On Sun, Jan 31, 2016 at 04:56:39PM +0100, Sebastian Huber wrote:
> Could we please not use magic defines to change the behaviour of headers.  This makes it hard to figure out dependencies.  Its much easier to trace simple #include directives.

So, in other words:
We generate a newlib_version.h at the same level as newlib.h
is, and include newlib_version.h from both newlib.h and
libc/include/sys/features.h