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Subject: Re: Cygwin R usability
To: cygwin AT cygwin DOT com
References: <tencent_12266CBA39850A13141D72C3 AT qq DOT com>
From: Marco Atzeri <marco DOT atzeri AT gmail DOT com>
Message-ID: <55D1EBD8.8000607@gmail.com>
Date: Mon, 17 Aug 2015 16:12:40 +0200
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On 17/08/2015 15:41, foehn wrote:
> Hi there,
>
> I read that there were issues (mainly with the BLAS library) in the Cygwin port of R (http://r.789695.n4.nabble.com/cygwin-R-2-14-0-build-fail-td4035136.html). And till today the official R site has not been supportive of the Cygwin version of R (https://cran.r-project.org/doc/manuals/r-release/R-admin.html#Cygwin), while there are number of people using this "unofficial" port regardless of the caveats showed in the official R site (http://stackoverflow.com/search?q=R+cygwin). A thread on Stack Overflow was posted asking about this "chaos" (http://stackoverflow.com/questions/31962159/cygwin-r-usability) but nobody seemed to be able to address it fully as they are not Cygwin developers. Therefore I send this mail to the insiders and ask specifically for the current situation of the Cygwin port of R:
>

R developers have a peculiar view on Cygwin. For them what is not build 
by them is unsupported. In this view almost all cygwin software is 
unsupported.

> -) Has the BLAS issue been addressed in the current Cygwin port of R?

Cygwin build use the integrated R BLAS patched, not Lapack one.
So handling of NaN is as expected by R.

> -) Beside the BLAS issue, is there any additional problem? Can it pass the building test?

It pass most of tests. There are some failures on IO formatting, but I 
never investigated the root cause.

> -) In short, is current Cygwin port of R (v3.1.3, 64-bit) usable in serious sense?

I expect so.
If you find any serious issue, let me know.

>
> Thanks to the efforts for porting R to Cygwin and more thanks in advance to anybody responding to this mail,
> Foehn


Regards
Marco


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