[R-SIG-Mac] R64.app Won't Launch on 10.5.8 with a G5

Steven McKinney smckinney at bccrc.ca
Sat May 1 07:18:54 CEST 2010

> -----Original Message-----
> From: r-sig-mac-bounces at stat.math.ethz.ch [mailto:r-sig-mac-
> bounces at stat.math.ethz.ch] On Behalf Of Sean Lake
> Sent: Friday, April 30, 2010 6:05 PM
> To: r-sig-mac at stat.math.ethz.ch
> Subject: Re: [R-SIG-Mac] R64.app Won't Launch on 10.5.8 with a G5
> On Apr 30, 2010, at 18:03, Sean Lake wrote:
> > Hello all,
> >
> > Is R64.app not backward compatible with 10.5 on a PPC64 machine? Does
> it only work if 10.5 is launched in 64 bit mode?
> >
> > Thanks,
> > Sean
> Sorry, forgot to add, it's R version 2.11.0 with GUI 1.33.

>From the Mac OS X page on CRAN:
Universal R 2.11.0 for with R.app GUI 1.33 released on 2010/04/27
This binary distribution of R and the GUI supports PowerPC (32-bit) and Intel (32-bit and 64-bit) based Macs on Mac OS X 10.5 (Leopard) and 10.6 (Snow Leopard).

Only 32-bit is now built and supported for PPC.

OS X 10.5 is always 64-bit.  

The issue is that 64-bit PPC software/compilers and Apple
support are slowly disappearing as time goes on.  Simon Urbanek
and others that develop and maintain R for the Mac announced
a while back that PPC64 support would end, as the PPC platform
is becoming history.  So, it's either compile R and packages
from source in 64-bit mode yourself, or get a new Intel-based Mac.


Steve McKinney

> Thanks again,
> Sean
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