[R-SIG-Mac] Change Rscript to 64-bit

[Simon Urbanek]

On Feb 23, 2013, at 5:38 AM, Alton Ing wrote:

> To get Rscript running in 64-bit mode on your 64-bit Mac OS X (Mountain Lion):
> 
> sudo ln -s /Library/Frameworks/R.framework/Resources/bin/Rscript
> /usr/bin/Rscript32
> sudo rm /usr/bin/Rscript
> sudo echo '/Library/Frameworks/R.framework/Resources/bin/Rscript
> --arch=x86_64 "$@"' > /usr/local/bin/Rscript64
> sudo cp /usr/local/bin/Rscript64 /usr/bin/Rscript
> sudo chown root:admin /usr/bin/Rscript
> sudo chmod 775 /usr/bin/Rscript
> 

This is probably the worst possible way to go about this - so readers please be warned - you really don't want to do that.

We do provide Rscript in both variants so if you really want to force the one or another into /usr/bin/Rscript, just symlink the architecture you want.

Cheers,
Simon





> If your old scripts encounter problems try using /usr/bin/Rscript32
> instead. Otherwise, you can revert /usr/bin/Rscript back using:
> sudo rm /usr/bin/Rscript
> sudo ln -s /Library/Frameworks/R.framework/Resources/bin/Rscript
> /usr/bin/Rscript
> 
> -Alton
> 
> 
> On Fri, Feb 22, 2013 at 10:57 PM, Prof Brian Ripley
> <ripley at stats.ox.ac.uk> wrote:
>> On 23/02/2013 04:32, Alton Ing wrote:
>>> 
>>> How can we change Rscript to execute in 64-bit?
>>> 
>>> The following script prints "i386-apple-darwin9.8.0/i386 (32-bit)" :
>>> 
>>> #!/usr/bin/env Rscript
>>> sessionInfo()$platform
>>> 
>>> I want to run RHadoop (rmr2) locally on Mac OS X 10.8.2 (Mountain
>>> Lion) but it only works with Rscript in 64-bit mode.
>> 
>> 
>> Where is that one from (we can't tell?)
>> 
>> On a CRAN installation
>> 
>> /Library/Frameworks/R.framework/Resources/bin/exec/x86_64/Rscript
>> 
>> is 64-bit.  And you can always run "Rscript --arch=x86_64" (not using env,
>> though).
>> 
>> 
>> 
>> --
>> Brian D. Ripley,                  ripley at 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
>> 
>> 
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> 
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