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RE: [Breakage] Git v2.21.0-rc0 - t5318 (NonStop)

On February 8, 2019 17:07, brian m. carlson wrote:
> On Fri, Feb 08, 2019 at 02:31:57PM -0500, Jeff King wrote:
> > > It is available AFAIK on Linux, POSIX, and Windows under Cygwin.
> > > That's more than /dev/zero has anyway. I have the patch ready if you
> > > want it.
> >
> > Is it POSIX? Certainly truncate() is, but I didn't think the
> > command-line tool was. If it really is available everywhere, then
> > yeah, I'd be fine with it.
> It's not. POSIX doesn't specify the command, and macOS lacks it, I believe.

I'm happy to modify the test (it is in one spot), to make a decision based on:
a) whether /dev/zero exists
b) whether the system is a NonStop
c) something else

What would you all prefer? It doesn't matter to me one way or another, as long as I can get the dependency to /dev/zero removed so tests will run here.