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Date: Fri, 15 May 2015 21:58:26 -0700
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Subject: Re: cygwin 2.0.2, make 4.1: stderr redirect append does not work with native Windows programs
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> Although I'm not sure why this happens (maybe a bug of make), try
>
> make -O 2>&1 | cat
>
> With option -O, it seems to work as expected.

Indeed, thanks!  It also appears that I can:

   $ export MAKEFLAGS=O
   $ make ...

to work around the problem, with no apparent ill effects, which is good 
because my actual environment involves a twisty maze of recursive Makefiles.

Of course, I still hope the underlying bug gets fixed.

-Scott

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