Compile gcc from source on a 64 bit OS ?

[NightStrike]

On 12/28/07, Andrew Haley <aph@redhat.com> wrote:
> Dennis Clarke writes:
>  >
>  > > Hsieh, Pei-Ying (MED US) writes:
>  > >
>  > >  > I need to compile gcc from source on a 64 bit linux OS (Ubuntu and
>  > >  > OpenSuSE).
>  > >
>  > > x86_64, I guess.
>  > >
>  > >  > After scanning through the installation procedures and manual, it
>  > >  > is not clear to me how to do this on a 64 bit OS (default seems to
>  > >  > be for 32 bit OS, using -m32).  It will be highly appreciated if
>  > >  > you can shed some light on this.  Thanks!
>  > >
>  > > It's usually configure, make, make install.  Debian-derived distros
>  > > have some patches because they put 64-bit libraries in /lib instead of
>  > > /lib64, which is where the standard says they should be.
>  >
>  > what standard ?  An ISO or OpenGroup document somewhere ?
> `
> Originally the x86_64 ABI, later the Linux FHS.

gcc doesn't look in lib64 for the x86_64-pc-mingw32 target.  Is this a bug?