On Mon, Apr 4, 2016 at 7:39 PM, Jeroen Ooms <jeroen.o...@stat.ucla.edu>
wrote:
> On Sun, Apr 3, 2016 at 6:44 PM, Ray Donnelly <rdonne...@continuum.io>
> wrote:
> > I've started to look into building R for Windows using MSYS2 as both the
> > build environment and tools + libraries provider (where possible).
>
> Thanks for your reply, and for the patches.
>
No problem.
> Last time I had a look at this (a few months ago) another problem was
> that mingw-w64 v4 was giving different numeric output for some of the
> tests in r-base. If I recall correctly, some eigen vectors had their
> direction flipped (negative values became positive and vice versa).
> Did you notice anything of this kind when running 'make check' and
> 'make check recommended' ? It is important to us that numeric results
> are reproducible between versions of R.
>
I have not seen make check fail with any reports of eigenvector flip.
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