gcc-3.2.1 configure question

[Till Straumann]

Hi.

I am trying to build the RTEMS/gcc toolchain
for powerpc-rtems.

Is there any way to reduce the multilib bloat,
i.e. if I only need a small subset of the

m403 m505 m601 m602 m603 m603e m604 m750 m821 m860
mpc509 mpc8260

multilib variants - how can I prevent the unused
from being built?

Thanks
-- Till