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

[Tom Tromey]

>>>>> "Andrew" == apinski--- via Gdb-patches <gdb-patches@sourceware.org> writes:

Andrew> From: Andrew Pinski <apinski@marvell.com>
Andrew> This patch uses the toplevel configure parts for GMP/MPFR for
Andrew> gdb. The only thing is that gdb now requires MPFR for building.
Andrew> Before it was a recommended but not required library.
Andrew> Also this allows building of GMP and MPFR with the toplevel
Andrew> directory just like how it is done for GCC.
Andrew> We now error out in the toplevel configure of the version
Andrew> of GMP and MPFR that is wrong.

Andrew> OK after GDB 13 branches? Build gdb 3 ways:
Andrew> with GMP and MPFR in the toplevel (static library used at that point for both)
Andrew> With only MPFR in the toplevel (GMP distro library used and MPFR built from source)
Andrew> With neither GMP and MPFR in the toplevel (distro libraries used)

I think it's fine to move forward with this now.
Thank you again for doing this.

Tom