PATCH: misc configury bits for decimal float runtime

[DJ Delorie]

> 2005-12-18  Ben Elliston  <bje@au.ibm.com>
> 
>         * Makefile.in (D32PBIT_FUNCS): New.
>         (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
>         (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
>         D64PBIT_FUNCS and D128PBIT_FUNCS.
>         (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
>         * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
>         D128PBIT are set.
>         (decnumber_dep): Define.

Ok.