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Re: Building GCC 4.0.4 on 64 bit Linux

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

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