[R-SIG-Mac] 2.7.0 for 64-bit running Leopard

Kasper Daniel Hansen khansen at stat.Berkeley.EDU
Thu May 8 06:50:51 CEST 2008

Simon might correct me on this.

My belief is that any 64bit build on Mac OS X has been considered  
experimental for a while and probably will in the foreseeable future.  
One of the problems is that if the CRAN build supports x86_64, then  
all binary packages (CRAN and Bioconductor) should be supporting it as  

Having said that, it is perfectly safe to use the builds you are  
mentioning in your post. It does require setting up your system to  
build (including installing a fortran compiler) and it does sometimes  
break a bit (I think, sometimes the builds are failing), so you would  
need to be a bit more forgiving. And you probably need to spend some  
time keeping up to date on what happens (like subscribing to this list  
and reading the FAQs etc).


On May 7, 2008, at 1:25 PM, Michael Braun wrote:

> Is it possible to get some clarification regarding what is  
> considered a "release" configuration of R and what is considered  
> "experimental?"  I would like to run a 64-bit build of R 2.7.0 on an  
> x86_64 Mac Pro with 18GB of RAM running Leopard (10.5.2).  When I  
> install the precompiled "universal" binary, it appears that I am  
> getting a 32-bit build (I think this because I cannot allocate  
> objects of size >3GB and because .Platform$r_arch="i386").  I  
> checked out the r.research.att.com site, but I am hesitant to  
> install an "experimental" build.  Also, I tried compiling R myself,  
> but ran into a large number of issues (including not passing make  
> check, which I now see is addressed in the FAQ).
> So my question is, once 10.5.3 is released, should the binary I  
> download from CRAN install a 64-bit version of R?  Will I need to  
> compile from source?  Or am I still too far ahead of the curve?
> Thanks,
> Michael
> Michael Braun
> Assistant Professor of Management Science (Marketing Group)
> MIT Sloan School of Management
> One Amherst St., E40-169
> Cambridge, MA 02142
> braunm at mit.edu
> 617-253-3436
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