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Compiling gcc-4.2 on 64 bit Ubuntu


Hi folks

I've run into trouble trying to compile gcc 4.2 (gcc-4.2-20070221) on an
amd64 machine running 64 bit Ubuntu.  I configure with:

./configure --disable-multilibs --enable-languages=fortran

then doing a make gets as far as compiling ../.././gcc/crtstuff.c in
gcc-4.2-20070221/host-x86_64-unknown-linux-gnu/gcc.  /usr/include/gnu/stubs.h is included which then tries to include gnu/stubs-32.h, which doesn't exist, rather than gnu/stubs-64.h, which does.  Thus apparently __WORDSIZE is defined as 32.

Now Ubuntu has 64 bit libraries in /usr/lib and 32 bit libraries
in /usr/lib32 (with a simlink from /usr/lib64 to /usr/lib).

Any ideas about how I can coerce configure to set things up correctly to
build a 64 bit compiler?

Ciao
Terry

-- 
Dr Terry Frankcombe
Physical Chemistry, Department of Chemistry
GÃteborgs Universitet
SE-412 96 GÃteborg Sweden
Ph: +46 76 224 0887   Skype: terry.frankcombe
<terry@chem.gu.se>


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