64 bit compiling

Kevin Kofler kevin.kofler at chello.at
Thu Nov 13 14:01:51 UTC 2008


Ewan Mac Mahon <ewan <at> macmahon.me.uk> writes:
> With the possible exception of the kernel, that's unlikely to work at all
> since a 32 bit system won't have 64 bit libraries installed to link
> against.

And Fedora's 32-bit GCC builds don't support -m64 at all. (The reason being that
supporting -m64 in a 32-bit GCC slows down GCC significantly for everyone, even
when building 32-bit stuff. So it's better to use a separate cross-compiler. Or
just to run a 64-bit system.)

        Kevin Kofler




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