Hi Michael,

On 11/02/2012 10:18 AM, Michael Haberler wrote:
> I have now integrated the RT-PREEMPT branch as provided by Charles, added the 
> now-working Xenomai-userland thread style, and massaged configure to deal 
> with all of this. The Xenomai-kernel branch I reported about yesterday is 
> fully integrated. If you played with that branch, it's safe to switch.
>
> this adds the following scenarios:
>
> ./configure --with-threads=xenomai-user
>
> ./configure --with-threads=rt-preempt-user
>
> ./configure --with-threads=rtai
>
> ./configure --enable-simulator [--enable-drivers for the hal_parport usermode 
> driver]

This is fantastic news for me.  I originally dug up Michael Büsch's 
preempt-rt patches in order to run LinuxCNC on RedHat-like distros, 
where I have quite an investment in infrastructure.  (Not knocking 
Debian at all; I've seriously contemplated a very painful switch because 
of the greater availability of these tools!)  First, I thought all this 
time that the preempt-rt patches were not working, but Charles has 
indicated that they actually are.  Now there's a second choice with your 
work on Xenomai.

I'm compiling up a Xenomai-patched RPM and utilities right now, and will 
report back with results.

Thank you so much.  This is a major step closer to having a fully FOSS, 
automated and reproducible CAD/CAM/CNC workflow.

        John

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