Hi Uwe, 2012/1/18 Uwe Ligges <lig...@statistik.tu-dortmund.de>: > > > On 18.01.2012 01:09, Dan Tenenbaum wrote: >> >> Hello, >> >> On Mon, Jan 9, 2012 at 12:28 AM, Prof Brian Ripley >> <rip...@stats.ox.ac.uk> wrote: >>> >>> CRAN Windows binary packages built for R-devel are now online, and Uwe's >>> winbuilder has gained the ability to check source packages under R-devel. >>> >>> Windows check results are available from >>> http://cran.r-project.org/bin/windows/contrib/checkSummaryWin.html >>> and in due course from the main CRAN check page. >>> >>> There have been a few updates to the toolchain: >>> >>> (i) It is now based on a beta of gcc 4.6.3, and so reports almost the >>> same >>> compilation warnings/errors as the CRAN check machines. >>> >> >> Is the binary R-devel provided by CRAN built against this toolchain? >> If it is, should I expect "R --arch x64 CMD config CC" to report >> "gcc"? It still reports "x86_64-w64-mingw32-gcc" (R-devel 58077). > > > Actually "gcc -m64" and that is also the case when I just tried yesterday's > CRAN version (which is 58125). I guess you have an older version of R in > your PATH? >
I can't seem to download the latest R-devel. When I try and download this file: http://cran.r-project.org/bin/windows/base/R-devel-win.exe and install that, it turns out to be r58077. I've tried with two different browsers and with curl, and with another CRAN mirror. I tried this on a fresh machine with no previous R installations or installer .exes lying around. The web page http://cran.r-project.org/bin/windows/base/rdevel.html says I should be downloading r58133 but that doesn't seem to be the case....can you look into this? > > > >> Also, I have the latest Rtools installed (VERSION.txt reads "Rtools >> version 2.15.0.1911") and it is first on my PATH. >> >> I expect "gcc --version" to report 4.6.3 but it still says 4.5.0. >> >> "x86_64-w64-mingw32-gcc --version" reports 4.5.2. >> "which gcc" reports "/cygdrive/c/Rtools215/MinGW/bin/gcc". >> >> "which x86_64-w64-mingw32-gcc" reports >> "/cygdrive/c/Rtools215/MinGW64/bin/x86_64-w64-mingw32-gcc". > > > > Yes, these are the version you need for old versions of R that are included > in the Rtools, but it has a third gcc in subdir gcc-4.6.3 which is the one > you should have first in the path in order to use the new toolchain. Good, I did not know about this directory. I will put it first in my PATH after I am able to get a recent R-devel binary. Thanks, Dan > > Uwe Ligges > > > > > >>> (ii) There are various bug-fixes to the toolchain: notably x^n and exp(x) >>> use gradual underflow to denormal numbers rather than abrubtly >>> underflowing >>> to zero. >>> >>> (iii) This is a 'multilib' toolchain: the compiler is named 'gcc.exe' for >>> both architectures, selected by flag -m32 (the default) and -m64. >> >> >> Looks like to check gcc versions I should (instead of what I do above) >> do simply "gcc --version". I imagine that "gcc -m32 --version" would >> report the same thing as "gcc -m64 --version". >> >> Thanks, >> Dan >> >> >>> >>> >>> On 29/11/2011 07:56, 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 >>>> http://www.murdoch-sutherland.com/Rtools/ and >>>> http://www.stats.ox.ac.uk/pub/Rtools/ >>>> >>>> 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 Mingw.org 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 http://www.stats.ox.ac.uk/pub/Rtools . >>>> >>>> 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, rip...@stats.ox.ac.uk >>> Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ >>> University of Oxford, Tel: +44 1865 272861 (self) >>> 1 South Parks Road, +44 1865 272866 (PA) >>> Oxford OX1 3TG, UK Fax: +44 1865 272595 >>> >>> ______________________________________________ >>> R-devel@r-project.org mailing list >>> https://stat.ethz.ch/mailman/listinfo/r-devel >> >> >> ______________________________________________ >> R-devel@r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-devel ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
