[R-sig-ME] Upcoming changes in lme4

Mike Lawrence Mike.Lawrence at dal.ca
Tue Feb 7 21:41:17 CET 2012

I can at least confirm that on my system (Mac OS 10.7.2, xcode 4.1, R
2.14.2), RcppEigen builds fine while running the following in the
64-bit GUI:


On Tue, Feb 7, 2012 at 4:36 PM, Federico Calboli
<f.calboli at imperial.ac.uk> wrote:
> On 7 Feb 2012, at 17:47, Douglas Bates wrote:
>> I forgot to mention an important point for Mac OS X users.  The new
>> lme4, which is based on the Eigen linear algebra library, requires the
>> RcppEigen package for which there is no binary Mac OS X package on
>> CRAN.  It's a ridiculous situation that comes about because Apple
>> ships an antique version of gcc in their XCode development
>> environment, and won't upgrade because of licensing disagreements.
>> Even that very old version of g++ compiles the package successfully
>> for Intel Macs but it croaks when trying to cross-compile for the ppc
>> architecture.  You can see at
>> http://www.r-project.org/nosvn/R.check/r-release-macosx-ix86/RcppEigen-00install.html
>> that the advice it to inform Apple of the compiler error but they
>> ignore such reports.  Things may improve when XCode 4 is in use
>> because it provides clang++ in addition to the same very old version
>> of g++.  In the meantime we will provide a binary i386 Mac OS X
>> package for RcppEigen.
> Thank you for the hard work, it is very much appreciated. I use R 64-bit more than R 32-bit, but I guess all I have to do is to compile the package by hand (I'm on OS 10.7.3, and have Xcode 4.2.1, i.e. intel mac + clang), right?
> I never had any problems compiling packages where binaries were not available, I do not see how RccpEigen should give me more grief.
> Best wishes and, again, many thanks
> F
> --
> Federico C. F. Calboli
> Neuroepidemiology and Ageing Research
> Imperial College, St. Mary's Campus
> Norfolk Place, London W2 1PG
> Tel +44 (0)20 75941602   Fax +44 (0)20 75943193
> f.calboli [.a.t] imperial.ac.uk
> f.calboli [.a.t] gmail.com
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