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
well.
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).
Kasper
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
[EMAIL PROTECTED]
617-253-3436
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