Re: [Rd] Updated Windows toolchain

From: Uwe Ligges <>
Date: Tue, 10 Jan 2012 19:05:43 +0100

On 10.01.2012 18:51, Dan Tenenbaum wrote:
> On Mon, Nov 28, 2011 at 11:56 PM, Prof Brian Ripley
> <> wrote:
>> An updated toolchain is now being used for Windows' builds of R-devel:
>> details are in the R-admin manual and at
>> and
> Thanks for the update.
> I saw that
> had the following contents:
> Rtools version
> So I downloaded Rtools215.exe but when I installed it, the VERSION.txt
> that was extracted read:
> Rtools version
> ...which is the same version I previously had installed.
> Has the new version not propagated yet or is there some other issue?

Looks like it failed. I just checked the original sources and CRAN and the versions differ. We will take care soon.


> Thanks,
> Dan
>> Both 32- and 64-bit parts of the toolchain use v2.0.1 of the Mingw-w64
>> project's runtime and a beta of gcc 4.5.4: the project's builds
>> are no longer used. This should mean that code which compiles for 64-bit
>> Windows also compiles for 32-bit Windows, and v.v. unless code makes
>> (incorrect but common) assumptions that pointers fit into longs.
>> A very few packages will need modifications because they contain
>> declarations which clash with the headers in this toolchain: where we are
>> aware of problems the maintainers have been informed.
>> At DLL level different Windows' toolchains should be compatible: at C level
>> they mostly are but at C++ level they are pretty much incompatible (so that
>> for example GDAL has to be re-compiled for every toolchain: and Rcpp users
>> need to be careful to use only one toolchain for Rcpp and their packages).
>> All the external software previously made available (and more) is made
>> available at .
>> The toolchain has support for OpenMP and pthreads: however OpenMP support is
>> not enabled by default in R (it is too slow to be much use). If you do make
>> use of it in your packages, be aware that you will need to ship the
>> appropriate pthreads DLL(s).
>> It is expected that there will be several further minor updates prior to the
>> release of 2.15.0 in ca 4 months, but this step is the major one.
>> --
>> Brian D. Ripley,
>> Professor of Applied Statistics,
>> University of Oxford, Tel: +44 1865 272861 (self)
>> 1 South Parks Road, +44 1865 272866 (PA)
>> Oxford OX1 3TG, UK Fax: +44 1865 272595
>> ______________________________________________
>> mailing list
> ______________________________________________
> mailing list
> mailing list Received on Tue 10 Jan 2012 - 18:10:56 GMT

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