From jeroen.ooms at stat.ucla.edu  Mon Apr  4 20:39:55 2016
From: jeroen.ooms at stat.ucla.edu (Jeroen Ooms)
Date: Mon, 4 Apr 2016 11:39:55 -0700
Subject: [Rd] Optimization bug when byte compiling with gcc 5.3.0 on
	windows
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On Sun, Apr 3, 2016 at 6:44 PM, Ray Donnelly <rdonnelly at 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.

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.



[Rd] Optimization bug when byte compiling with gcc 5.3.0 on windows
Jeroen Ooms