On Tue, Aug 9, 2011 at 6:24 PM, Simon Urbanek <simon.urba...@r-project.org> wrote: > It actually works ;) I'm using it for testing on my RForge.net machine and > yes, it's Debian - everything just works there :). > > But back to the original question. First a minor detail, don't set > environment variables use configure variables instead. Second, don't build in > the source directory, always create an object directory. Third, r_arch is > simply a name you set for the architecture, it has no meaning other than that > it's a label. > > So now to the real stuff. If you want 32-bit build, you'll need 32-bit > runtime of everything important in your system and the multilib compilers. In > Debian (and thus likely in Ubuntu too) that can be achieved by something like > > sudo apt-get install  ia32-libs-dev lib32readline6-dev lib32ncurses5-dev > lib32icu-dev gcc-multilib gfortran-multilib > > Then you can build both 64-bit and 32-bit R, the difference will be in the > all compiler flags -- for 64-bit you'll use -m64 (or nothing since it's the > default) and for 32-bit you'll use -m32. > > So roughly something like > > tar fxz R-2.13.1.tar.gz > mkdir obj-32 > cd obj-32 > ../R-2.13.1/configure r_arch=i386 CC='gcc -std=gnu99 -m32' CXX='g++ -m32' > FC='gfortran -m32' F77='gfortran -m32' > make -j24 && sudo make install rhome=/usr/local/R/2.13 > cd .. > mkdir obj-64 > cd obj-64 > ../R-2.13.1/configure r_arch=amd64 > make -j24 && sudo make install rhome=/usr/local/R/2.13 > > That will leave you with multi-arch R that you can run with > R --arch=i386 # 32-bit > R --arch=amd64 # 64-bit > Packages will be also built as multi-libs. Good luck :) > [BTW the rhome=... setting is entirely optional, I just like to keep my R > versions organized…] > > Cheers, > Simon >
Thanks Simon! Confirm that these instructions work. ia32-libs-dev was not available for Ubuntu Natty, so I installed ia32-libs instead, and the compilation works! -- Vinh ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
