[PATCHv2] Use toplevel configure for GMP and MPFR for gdb

[Tom Tromey]

>>>>> "Jeff" == Jeff Law via Gcc-patches <gcc-patches@gcc.gnu.org> writes:

>> This patch uses the toplevel configure parts for GMP/MPFR for
>> gdb.

Jeff> If the GDB folks confirm they want this behavior, then the toplevel
Jeff> bits are fine.

I think we do, but my inclination is to wait until after GDB 13 branches.
CCing Joel to see what he thinks, as he handles the releases.

Tom