[CMake] HP-UX ia64 (32bit) port

[Bill Hoffman]

Can you run a nightly dashboard for CMake on this HW?  It would be the 
only way these changes would continue to work into the future.

On 6/28/2019 6:24 PM, Earle Lowe wrote:
> I have made an HP-UX port for CMAKE 3.15
>
> It's not entirely optimal, because I took a small shortcut on fsevents
> in libuv by using the "no events" source also used by cygwin. HP-UX
> does have /dev/poll, so I think the AIX code could be used as a
> template for a proper implementation.
>
> It runs --version, but I haven't tried to use it to make itself again,
> or any other tests.
>
> HP-UX  B.11.31 ia64 using GCC 9.4.3
>
> The binaries are 32-bit
>
> I didn't do this quite correctly because I didn't fork master and I
> don't have a PR prepared.
>
> If the community wants though, I can make a proper merge request
>
> I'll note, getting GCC 9.4.3 working on HP-UX is actually harder than
> porting cmake. This version of GCC has a fairly robust implementation
> of C++11
>
> -Earle