On Thu, May 21, 2009 at 06:42:26AM +1000, Brendon Costa wrote: > Hi all, > I have to use GCC 4.0.4 (yes I know it is old, I plan to update to a > new version with plugins in the future, but that will take a LOT of > work). I recently started using a 64 bit Ubuntu OS instead of 32 bit. > However I cant seem to get GCC 4.0.4 to compile on this platform. > Basically while compiling I get a link error linking libgcc which is > shown below. > > Does anyone know if it is possible to build this version of GCC for 64 > bit Ubuntu? I don't mind patching it a little to get it up and > running, but this is the first time I have looked at working with 64 > bit platforms and am not familiar with ways around this link problem. > > Thanks, > Brendon. > > My configure line looked like: > ../../dev/gcc-4.0.4/configure -v --enable-languages=c,c++ > --prefix=/home/bcosta/build/install --enable-shared --with-system-zlib > --without-included-gettext --enable-threads=posix --enable-nls > --program-suffix=-4.0 --enable-clocale=gnu --enable-libstdcxx-debug > --enable-objc-gc --enable-mpfr --enable-checking=release > --build=x86_64-linux-gnu --host=x86_64-linux-gnu > --target=x86_64-linux-gnu I believe that Ubuntu does not install the 32-bit libraries by default. The error occurs in building 32-bit libgcc, which is produced in the normal x86_64 builds. Gcc has the concept of multi-lib, where it wants to support people who use incompatible options, such as -m32 or -m64. It builds both libraries, and then selects the appropriate library at link time, depending on the options. You need to either: 1) Install the 32-bit development libraries in the appropriate places; (or) 2) Configure your compiler with --disable-multilib to prevent the 32-bit libgcc from being built. -- Michael Meissner, IBM 4 Technology Place Drive, MS 2203A, Westford, MA, 01886, USA meissner@xxxxxxxxxxxxxxxxxx
