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

[Alton Ing]

Hi Simon,

I completely agree with you. However, on my 64-bit Mac Book Pro Retina
with Mountain Lion 10.8.2:

Rscript -e 'sessionInfo()$platform'
[1] "i386-apple-darwin9.8.0/i386 (32-bit)"

file `which Rscript`
/usr/bin/Rscript: Mach-O universal binary with 2 architectures
/usr/bin/Rscript (for architecture i386):	Mach-O executable i386
/usr/bin/Rscript (for architecture x86_64):	Mach-O 64-bit executable x86_64

file -h `which Rscript`
/usr/bin/Rscript: symbolic link to
/Library/Frameworks/R.framework/Resources/bin/Rscript

How can I get Rscript to DEFAULT to 64-bit mode like your computer?

-Alton

On Sat, Feb 23, 2013 at 5:29 AM, Simon Urbanek
<simon.urbanek at r-project.org> wrote:
>
> 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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>>> R-SIG-Mac at r-project.org
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>>
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>>
>