[R-SIG-Mac] 64bit R for intel

[Simon Urbanek]

Simon,

On Nov 1, 2006, at 6:00 PM, Simon de Bernard wrote:

> I am about to invest into a new xserve and I was wondering what was  
> the status on the 64-bit release of R for the intel chips (I need  
> to break that 4GB limit...)
>

Unfortunately I still have no access to a Mac Pro machine, so I can't  
test it. In theory it should work as there is no problem building 64- 
bit ppc binary (i.e. the R sources should have no 32-bit vs 64-bit  
issues on a Mac). In practice there may be some problems lurking in  
the dark because of the compilers (the gcc 4.0.3 we use for the  
current build doesn't have 64-bit Intel support). A possible way is  
to use Apple compiler and maybe HPC gfortran. I can try to build such  
binary, but I'll need some owner of Mac Pro to test it (I'll post it  
to the R Mac page). Of course the same restrictions that apply to the  
ppc 64-bit version apply here as well (no Cocoa and GUI, need for  
custom X11 client etc.).

Cheers,
Simon