probinson added a comment.

In https://reviews.llvm.org/D32787#745205, @labath wrote:

> In https://reviews.llvm.org/D32787#745139, @probinson wrote:
>
> > In https://reviews.llvm.org/D32787#745099, @labath wrote:
> >
> > > Could it be that you just have stale cmake cache?
> >
> >
> > That could easily be true.  Rerunning cmake didn't fix it; short of 
> > deleting the entire build directory, is there a way to refresh the cache?
>
>
> Opening the CMakeCache.txt, and deleting the HAVE_PPOLL line should 
> re-trigger the detection. But if that doesn't fix it, I'd certainly recommend 
> nuking the build directory before looking for problems elsewhere.


Yes, that worked.  Which leaves the original source-text problem, of course, 
but at least I'm not having to maintain a local patch anymore.
Thanks!


Repository:
  rL LLVM

https://reviews.llvm.org/D32787



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