On Thu, 13 Dec 2007, Simon Urbanek wrote: > Hi Herve, > > On Dec 12, 2007, at 7:06 PM, Herve Pages wrote: > >> Simon Urbanek wrote: >> [...] >>> >>> FWIW: dual 32-bit and 64-bit binaries of current R 2.6.1 patched >>> and R- >>> devel for Leopard are available from >>> http://r.research.att.com/ >>> They support all four architectures. To start 64-bit Intel R use R -- >>> arch=x86_64, for 64-bit ppc it is R --arch=ppc64. >> >> We are trying to help some Bioconductor users to use these nightly >> builds in 64-bit mode. >> >> I noticed that when I start them with R --arch=x86_64, >> 'sessionInfo()' and 'version' still report i386 (this is with the >> latest R-2.6-branch r R-devel builds for Leopard available at >> http://r.research.att.com/) >> . >> > > Yes - the platform is always i386 or powerpc since Mac OS X identifies > as such (there is no 64-bit only Mac OS X).
I don't think so. The R.version setting is coming from what configure identifies as the value: e.g. the 'arch' value is that of the C macro R_CPU. The configure support files in R-devel have been updated, and do give x86_64 using a 64-bit compiler on iMac/Leopard. I don't have a ppc Mac, so not know (nor care) what the value is there. [...] -- Brian D. Ripley, [EMAIL PROTECTED] 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 _______________________________________________ R-SIG-Mac mailing list R-SIG-Mac@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-mac