[R-SIG-Mac] Installing R from source: "../i386/ldpaths: No such file or directory"

[Charlie Sharpsteen]

On Sunday, October 2, 2011 8:12:20 AM UTC-7, Simon Urbanek wrote:
>
> The framework installation uses `arch` to determine the default 
> architecture which in your case is i386 but it is not installed. You can 
> edit
>
> /Library/Frameworks/R.framework/Resources/bin/R
>
> and replace 
> : ${R_ARCH=/`arch`}
> with
> : ${R_ARCH=/x86_64}
>
> The assumption is that if you use a framework the resulting R will be 
> universal, but it your case it's not. I'll see if we can come up with 
> something more robust ...
>
> Cheers,
> Simon
>

I run 10.6.8 with an x86_64 kernel and `arch` still returns i386 which is a 
bit misleading. For the Homebrew package manager, we decide if 64 bit 
binaries are preferred by checking the return value of `/usr/sbin/sysctl -n 
hw.cpu64bit_capable`.

-Charlie 
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